Entries |
Document | Title | Date |
20080203830 | Economical module for engine cooling applications - A cooling module includes a shroud ( | 08-28-2008 |
20080211325 | Electromotive Drive - The invention relates to an electromotive drive comprising an electric motor with a commutator that is located in a motor housing, in addition to gearing that is flange-mounted on the electric motor. In the drive, the armature shaft passes through an opening into the interior chamber of a gearing housing. A screening element is fixed onto the shaft to rotate with the latter. The screening element almost completely seals the opening against abraded carbon particles or dust from the brushes. The screening element also carries a control magnet that co-operates with a sensor of the motor control module. | 09-04-2008 |
20080265694 | Manufacturing process for a motor stator assembly and structure thereof - A manufacturing process for a motor stator assembly includes the following steps. A plurality of stator segments is manufactured. The stator segment includes an inner ring portion, a connection rib and an outer ring portion. The connection rib is connected between the inner ring portion and the outer ring portion. The stator segments are disposed at intervals in a mold. By using a plastic injection molding method, an insulating unit is formed on the surface of the stator segments. The adjacent inner ring portions are connected together via the insulating unit to form a full circle. There is a gap between two adjacent outer ring portions. Thereby, it is handy and convenient to perform the wire-winding process for the motor stator assembly. | 10-30-2008 |
20080272660 | Magnet Component for Attachment to a Shaft - The invention relates to a magnet module for fixing to a shaft ( | 11-06-2008 |
20080290744 | AUTOMOTIVE ALTERNATOR - A regulator assembly mounting threaded aperture is formed on an inner wall surface of a rear bracket, and a receiving recess portion is recessed into an inner wall surface of the rear bracket around the regulator assembly mounting threaded aperture. A regulator assembly mounting penetrating aperture is disposed through a base of a regulator assembly, and an engaging protruding portion is disposed so as to project from the base around the regulator assembly mounting penetrating aperture. The regulator assembly is fixed to the rear bracket by engaging the engaging protruding portion in the receiving recess portion and fastening a regulator assembly mounting screw that has been passed through the regulator assembly mounting penetrating aperture into the regulator assembly mounting threaded aperture. | 11-27-2008 |
20090021087 | MOTOR - A motor includes a rotor that is rotatable about a center axis, a stator facing the rotor, a bearing housing arranged to support the stator and having a plurality of fixing portions, and a base having a through hole. The base is fixed to the bearing housing via the fixing portions. The base also includes a recess and at least some of the fixing portions are engaged in the recess. At least one of the fixing portions is arranged to engage a surface at a radially inner portion of the base. | 01-22-2009 |
20090072639 | Segmented composite rotor - A composite rotor for an axial airgap, permanent magnet dynamoelectric machine comprises a plurality of magnet subassemblies adhesively bonded together to form the rotor. Each magnet subassembly comprises a rotor permanent magnet and an optional spacer. A fibrous belt is wrapped around the periphery of each subassembly to provide high tensile strength at least along the radial sides of the subassembly. The belt is preferably infiltrated with an adhesive agent, such as an epoxy resin, that is used to bond the subassemblies. The rotor is thereby provided with high strength and low mass, making it suitable for use in a high-speed, high pole count electric machine. | 03-19-2009 |
20090079277 | CYLINDRICAL COIL AND CYLINDRICAL MICROMOTOR USING THE SAME - A high-precision cylindrical coil having a high-precision fine coil pattern and a high mechanical precision such as fine roundness and no axial runout, and a cylindrical micrometer using the cylindrical coil are provided. | 03-26-2009 |
20090085415 | STATOR ASSEMBLY FOR AN ELECTRIC MACHINE AND METHOD OF MANUFACTURING THE SAME - A stator for an electric machine includes a plurality of core segments interconnected with one another. At least one core segment includes a plurality of teeth and a back portion that at least partially interconnects the teeth. A first one-piece mold defines a first end insulator portion and a plurality of slot insulator portions, and a second one-piece mold defines a second end insulator portion and a second plurality of slot insulator portions. The plurality of core segments is positioned between the first mold and the second mold such that the molds align and insulate the core portions. The stator also includes a plurality of coils. Each coil surrounds at least a portion of one tooth. | 04-02-2009 |
20090140584 | Motor - There is provided a motor having a rotor in which a rotor magnet is fixed on the outer peripheral surface of a rotor body. The motor is configured so that the support shaft portion is formed of a material having a self-lubricating property, and a first sliding surface ( | 06-04-2009 |
20090152962 | MOTOR FOR HIGH MOISTURE APPLICATIONS - A motor that includes a motor frame, an end-bell assembly, a stator assembly, and filling material is described. The stator assembly is placed within the frame such that at least one open area is defined between an inner diameter of the stator assembly and an inner diameter of the motor frame. The at least one end-bell assembly is attached to the motor frame, forming an inside area adjacent the motor frame and the stator assembly. The motor also includes a material configured to fill the at least one open area and the inside area of the at least one end-bell assembly for the purpose of sealing the stator assembly and the inside area associated with the at least one end-bell assembly. The material assists in a bonding and attachment between any two or more of the stator assembly, the motor frame, and the at least one end-bell assembly. | 06-18-2009 |
20090267424 | STATOR AND MOLDED MOTOR - A stator includes an annular substrate, an outer-diameter portion of the substrate provided at a tip end of an outer-diameter leg of a bobbin, the substrate having a smaller inner diameter than an inner diameter of the stator core. When stator resin provides sealing, the outer-diameter portion of the substrate can be supported by the tip end of the outer-diameter leg of the bobbin, and an inner-diameter portion of the substrate can be supported by a mold. Accordingly, even when the moment of inertia of a molded motor is increased, the substrate can be prevented from being deformed by a molding pressure with the stator resin, without the area of the substrate being decreased. | 10-29-2009 |
20090289510 | DEVICE FOR CONNECTING AN ELECTRIC MOTOR INTENDED FOR USE IN A FUEL TANK, IN PARTICULAR OF A MOTOR VEHICLE - A device for connecting an electric motor intended for use in a fuel tank, in particular of a motor vehicle, with connection contacts carbon brushes sliding over an armature of a rotor, and electrical leads arranged between the connection contacts and the carbon brushes. The electrical leads have a sheath made of polytetrafluoroethylene. | 11-26-2009 |
20090322165 | High-Efficiency Wheel-Motor Utilizing Molded Magnetic Flux Channels with Transverse-Flux Stator - A motor including an outside rotor having a rotor disc with plural magnets alternating polarities flush mounted in the disc, an inside stator assembly with a ring of pole pieces forming a channel to house a transversely wound stator windings, and a controller coupled with feedback electronics for monitoring a timing, speed and direction and coupling a signal to a processing unit for adjusting the drive electronics driving the phase windings. A u-shaped gap above the channel to receive the rotor disc and focus the captured magnetic flux in the pole pieces toward the magnets. In an embodiment the molded magnetic flux channel pole pieces of the inside stator are sets of molded magnetic flux channel pole pieces, each set forming a channel and corresponding to one phase of the motor; and a section of each one of the transverse windings passing through one channel, the remaining section folding back outside the set in close proximity to the outer base of the set of molded magnetic flux channel pole pieces. | 12-31-2009 |
20100019586 | EXTERNAL ROTOR MOTOR - An external rotor motor, composed of at least a stator with a stator core, coil winding, and insulating housing; a rotor; a plurality of bearings; and a rotating shaft. The rotor is disposed outside the stator and connected to the rotating shaft. The rotating shaft is disposed on the stator via the bearing. The coil winding is wrapped on the stator core. The stator core and the coil winding are disposed in the insulating housing. The external rotor motor of the invention is waterproof and dustproof; does not oxidize easily; features good insulation performance and integrity, light weight, and low cost; and is easy to manufacture. | 01-28-2010 |
20100066183 | MOLDED MOTOR AND ELECTRIC VEHICLE - A molded motor includes an annular stator formed by molding coils in resin, a rotor disposed in an internal space which is formed radially inside the stator, a cover covering the internal space, and an elastic member sandwiched between the cover and the stator and located at a more inner side in the radial direction of the stator from the coils. | 03-18-2010 |
20100079014 | MOLDED MOTOR - A molded motor is provided that allows for ready installation of a heat-conducting member therein and is capable of improving dissipation of heat generated from the stator. The heat-conducting member is integrally formed with a load-side end bracket. The heat-conducting member includes a stopper surface that contacts an end surface of a stator core in the axial direction of a shaft, and an extended portion extending from the stopper surface toward a non-load-side end bracket to contact an outer peripheral surface of the stator core. The heat-conducting member is embedded in a molded portion with the stopper surface contacting the end surface of the stator core and the extended portion contacting the outer peripheral surface of the stator core. | 04-01-2010 |
20100090547 | BRUSHLESS MOTOR - A brushless motor is smaller, flatter, and lighter but is easy to assemble and has reduced motor vibration. An attachment base is integrally molded by two-color extrusion molding using a first resin material that forms a base main portion and a second resin material that forms a support portion and is softer than the first resin material. | 04-15-2010 |
20100133927 | ROTOR FOR A DIRECT CURRENT DRIVE MOTOR AND A METHOD FOR PRODUCING THE SAME - An external rotor for a direct current drive motor with a side wall, an end cover, a cavity, an opening, a base, a magnetic tile, a center hole, and a magnetic yoke shell. A method for producing an external rotor for a direct current drive motor by integrally forming by injection molding a magnetic yoke shell and multiple magnetic tiles; forming a side wall on said magnetic yoke shell and an end cover at the bottom of said side wall; forming a base at the center of said end cover; and integrally forming by injection molding said base and a rotating spline. | 06-03-2010 |
20100133928 | MOTOR - A motor may include a motor base plate, a bearing holder provided with a through hole whose both ends hold bearings and vertically disposed with respect to the motor base plate, a stator provided with a center hole and fixed to an outer peripheral face of the bearing holder, and a rotor having a shaft supported by the bearings, a rotor case fixed to the shaft, and a magnet fixed on an inner peripheral face of the rotor case. The bearing holder may be provided with a stepped part, protruded toward a radial direction. The stator may be provided with a first resin block structured so that an end face on a motor base plate side of the stator core is molded with resin to cover a coil wound around the stator core, and inner peripheral faces of the stator core and the first resin block structure the center hole, and the center hole of the stator is press-fitted and fixed to the bearing holder until an end face of the first resin block is abutted with the stepped part. | 06-03-2010 |
20100141058 | STATOR FOAR ASPIRATION MOTOR, ASPIRATION MOTOR AND IN-CAR SENSOR USING THE SAME - Provided are a stator for an aspiration motor, an aspiration motor and an in-car sensor using the same, in which a bobbin is integrally formed with a stator, to thus use an inexpensive insulation wire and enhance a productivity and lower an inferiority using an insert-molding technology. The stator for the aspiration motor includes a stator support plate, a support boss which is vertically extended from the central portion of the stator support plate, a bobbin which is bent and formed on the lateral surface of the support boss, and which is separated from the upper side surface of the stator support plate, to thereby provide a space, and a stator coil which is formed by making a wire wound in the space provided by the bobbin. | 06-10-2010 |
20100148596 | MOTOR, PUMP, AND METHOD OF MANUFACTURING THE MOTOR - An electric motor in which the cost of parts and the cost of processing are reduced by installing a fan cover, a capacitor installation box, and a foot plate on a molded stator without addition of installation parts. In the electric motor ( | 06-17-2010 |
20100148597 | DIRECT CURRENT DRIVE MOTOR - A direct current drive motor with a stator core, an end insulator, and a coil winding forming a stator, and a housing, a magnetic yoke shell, and multiple magnetic tiles, forming a rotor. The magnetic yoke shell and the magnetic tiles are disposed on the housing. Multiple teeth protrude from a side wall of the stator core. A slot is formed between two adjacent teeth. The coil winding is disposed in the slot and wraps around the tooth. | 06-17-2010 |
20100156203 | SMALL MOTOR OF POLYGONAL EXTERNAL SHAPE - A side wall of a motor casing is formed into a polygonal shape such that flat side portions and corner portions located at respective corners between the side portions are continuously joined together. A field magnet, which has an outer circumferential shape approximately coinciding with the inner circumferential shape of the motor casing, has magnet side portions and magnet corner portions, and has a rib provided on outer circumferential surfaces of the magnet side portions. The magnet is disposed, through press-fitting, within the motor casing such that at least the rib comes into contact with the inner circumferential surface of the motor casing, wherein the magnet side portions, excluding the rib, are formed such that small clearances are formed between the magnet side portions and the side portions of the motor casing, or at least such that no pressing force acts on the magnet side portions, excluding the rib. | 06-24-2010 |
20100164307 | METHOD OF MAKING INTEGRATED STATOR, BRUSHLESS DIRECT-CURRENT MOTOR OF RADIAL CORE TYPE DOUBLE ROTOR STRUCTURE USING THE INTEGRATED STATOR, AND METHOD OF MAKING THE SAME - Provided are a radial core type brushless direct-current (BLDC) motor and a method of making the same, having an excellent assembly capability of division type stator cores in a double rotor structure BLDC motor. The BLDC motor includes a rotational shaft, an integrated double rotor including an inner rotor and an outer rotor, and a rotor supporter wherein a trench type space is formed between the inner rotor and the outer rotor, and an end extended from the inner rotor is connected with the outer circumferential surface of a bushing combined with the rotational shaft, and an integrated stator wherein one end of the stator is disposed in the trench type space and an extension axially extended from the other end of the integrated stator is fixed to the housing of the apparatus. In the integrated stator, U, V, W phase coil assemblies are formed of a number of core groups including a number of division type cores, wherein for each phase coil assembly, the division type core groups of the U, V, W phase coil assemblies are alternately disposed in an annular form in sequence of the phases, and the respective division type core groups are integrally formed into a single body in annular form by a stator support. | 07-01-2010 |
20100171378 | METHOD OF MAKING INTEGRATED STATOR, BRUSHLESS DIRECT-CURRENT MOTOR OF RADIAL CORE TYPE DOUBLE ROTOR STRUCTURE USING THE INTEGRATED STATOR, AND METHOD OF MAKING THE SAME - Provided are a radial core type brushless direct-current (BLDC) motor and a method of making the same, having an excellent assembly capability of division type stator cores in a double rotor structure BLDC motor. The BLDC motor includes a rotational shaft, an integrated double rotor including an inner rotor and an outer rotor, and a rotor supporter wherein a trench type space is formed between the inner rotor and the outer rotor, and an end extended from the inner rotor is connected with the outer circumferential surface of a bushing combined with the rotational shaft, and an integrated stator wherein one end of the stator is disposed in the trench type space and an extension axially extended from the other end of the integrated stator is fixed to the housing of the apparatus. In the integrated stator, U, V, W phase coil assemblies are formed of a number of core groups including a number of division type cores, wherein for each phase coil assembly, the division type core groups of the U, V, W phase coil assemblies are alternately disposed in an annular form in sequence of the phases, and the respective division type core groups are integrally formed into a single body in annular form by a stator support. | 07-08-2010 |
20100176666 | ELECTRIC MOTOR, ROTARY ACTUATOR AND ROTARY APPARATUS - A rotary actuator including: a housing that rotatably supports thereinside a rotor shaft of an electric motor; an eccentric shaft portion that is provided on a protruding end portion of the rotor shaft that protrudes outside the housing; an external gear that is rotatably supported on the eccentric shaft portion via a bearing; an internal gear that is fixed to an outer surface of the housing and meshes with the external gear; and a transmitting portion that is provided on the external gear, and transmits rotation force to an external output shaft. | 07-15-2010 |
20100187918 | SPLIT STATOR, MOTOR, AND SPLIT STATIOR MANUFACTURING METHOD - A split stator is arranged such that a formed edgewise coil is mounted on a teeth of a split stator core through an insulator, and a resin molded portion is formed excepting long ends of the edgewise coil. | 07-29-2010 |
20100187919 | Electric Motor with Cooling Ventilator Effect - The invention relates to an electric motor with a stator and an external rotor, comprised of a rotor bell and a rotor cover that acts as a fan wheel. The rotor bell has several apertures in its bell floor. The rotor cover has several exhaust ports. The rotor cover is shaped like a plate and consists of a plate base and an annular wall. The exhaust ports are preferably evenly distributed in the annular wall. The inside of the plate base of the rotor cover that faces the rotor bell has several radially extending interior blades that are fixedly connected to it. | 07-29-2010 |
20100187920 | STATOR UNIT WITH MOISTURE-PROOF SEALING - The present invention relates to a stator unit for an electric motor, in particular an external rotor motor. The stator unit comprises a stator with a stator laminate stack and stator windings and a stator bushing and a stator flange which is formed at one end. A housing flange of a housing for accommodating a motor controller or the like is fastened on the stator flange, and with motor connection contacts, which run from the stator through through-openings in the housing flange, and with fastening means, which run through fastening holes in the housing flange and are fastened in the stator. A sealing disk is arranged between the stator and the housing flange. The sealing disk has sealing regions made from elastic plastic, which are arranged and designed in such a way that direct and/or indirect sealing of the through-openings and/or the fastening holes is provided against the ingress of moisture. | 07-29-2010 |
20100194214 | STATOR STRUCTURE - A stator structure comprises an edgewise coil molded with resin with long ends being exposed, a bus bar connected to both ends of the coil ends, and a pump and injection holes for directly cooling the bus bar. | 08-05-2010 |
20100194215 | FLUID DYNAMIC BEARING APPARATUS AND A MOTOR USING THE SAME - Assembly precision in a motor is improved and greater cost reduction is achieved. | 08-05-2010 |
20100225181 | INJECTION-MOLDED STATOR - An injection-molded stator has a stator core, a coil winding having a head, an end insulating plate having a first groove, and a connector. The end insulating plate is disposed on one end of the stator core, the connector is formed by the head of the coil winding and a power lead electrically connected to each other, and the connector is fixed in the first groove via sealant. The connector is conveniently installed, firmly fixed, orderly distributed and not easily corroded or oxidized, and features simple processing and good sealing effect. | 09-09-2010 |
20100225182 | ELECTRIC FAN - A fan casing, webs, and a motor casing are integrally formed of a resin material by injection molding to configure a fan housing. An electrically grounded electromagnetic noise guard and a bearing holder to which an outer race of a ball bearing are electrically connected by an electrically-conducting path member provided in the fan casing by means of insert molding. Thus, the ball bearing may sufficiently be prevented from suffering electric corrosion in an electric fan of which a fan housing is made of an insulating resin. | 09-09-2010 |
20100237721 | MOTOR - The present invention provides a motor (M) including a case ( | 09-23-2010 |
20100253158 | ELECTRIC MOTOR, AND ELECTRIC DEVICE HAVING THE MOTOR - Comprising a stator including a stator iron core having a stator winding, a rotor including a rotary member and a shaft, a bearing for supporting the shaft, and a bracket for fixing the bearing, and further comprising an impedance adjusting member for adjusting at least one impedance of the impedance between the stator winding and the inner ring of the bearing, and the impedance between the stator winding and the outer ring of the bearing. The impedance adjusting member is a matching member for matching the individual impedances. The matching member is a capacitor interposed between the stator iron core and the bracket. | 10-07-2010 |
20100253159 | Permanent-magnet Synchronous Motor of Drainage Pump - A permanent-magnet synchronous motor of a draining pump is disclosed. It includes a permanent-magnet rotor for driving an impeller to rotate, a pump body for supporting the permanent-magnet rotor, a stator core and a stator coil. Among which, the stator coil is constructed with an enamelled aluminum wire winding which is coiled by an enamelled aluminum wire and sealed in a container. The invention applies the enamelled aluminum wire to the permanent-magnet synchronous motor of a draining pump. The winding of the stator coil and a welding part of its lead-out wire are sealed with plastic or epoxy resin which effectively isolate them from outside air, especially damp air. Therefore, the invention prevent the enamelled aluminum wire winding of the stator coil and the welding part of its lead-out wire from being oxidized in air and being corroded by the moisture, acid or alkaline matter in damp air. | 10-07-2010 |
20100253160 | Over-Molded Liquid Cooled Three-Stack Motor - A brushless, liquid or air cooled, direct current motor formed from a three stack stator and three section rotor assembly using an integrated water cooled or air cooled housing and over-molding techniques. | 10-07-2010 |
20100264757 | MOTOR STATOR, MOTOR, PUMP, AND METHOD OF MANUFACTURING THE MOTOR - An objective is to provide a motor stator that may achieve: a reduction in parts costs by shaping coil ends so that length thereof is reduced, thereby reducing the amount of use of copper, and minimizing the amount of use of binding strings for securing the coil ends in place; a reduction in manufacturing process costs by a structure which allows a protector and a wire lead outlet part to be easily assembled; and then an improvement in quality of a stator by firmly holding the coil ends and the protector. The motor stator may include a stator core | 10-21-2010 |
20100264758 | ELECTRIC MOTOR - An electric motor ( | 10-21-2010 |
20100270872 | BEARING DEVICE FOR ROTARY MOTOR - A bearing device for a rotary motor | 10-28-2010 |
20100270873 | ELECTRIC MOTOR AND ELECTRIC MOTOR VEHICLE - An electric motor includes: a stator of columnar shape including a stator core of annular shape and mold resin molding the stator core, the stator core accommodating a rotor configured to rotate about a rotary shaft; and a temperature detecting element buried in the mold resin. The stator core includes a plurality of stator teeth around which a coil wounded around respectively. The temperature detecting element is buried in the mold resin from any one of the pair of end surfaces at a position between two adjacent stator teeth. | 10-28-2010 |
20100295387 | ELECTRIC MOTOR AND ELECTRIC VEHICLE - An electric motor comprising an annular stator core, a resin molding the stator core, a casing member housing the stator core, wherein the casing member has an opening, and the resin is filled into the opening. | 11-25-2010 |
20100295388 | HYDROELECTRIC TURBINE GENERATOR COMPONENT - The present invention is concerned with a hydroelectric generator component forming part of an electromagnetic circuit for generating electricity from tidal flows, the component including a wire wound coil or a magnet housed within a casing and secured therein by means of a filler material, such as to provide structural integrity and impact protection to the coil or magnet. | 11-25-2010 |
20100301687 | MOLDED MOTOR, ELECTRIC MOTOR VEHICLE AND METHOD OF MANUFACTURING MOLDED MOTOR - In a molded motor, a driving shaft is protruded from a motor case. A stator includes a molded portion forming the end face of the stator. The molded portion includes a groove portion provided in the end face of the stator. The motor case includes a protruding portion protruded toward the end face of the stator. The protruding portion, fitted into the groove portion, is made of a material having a heat conductivity higher than the molded portion. | 12-02-2010 |
20100308671 | Can Stack Linear Actuator - A linear actuator motor design including a rotor assembly that has an insert molded into a non-magnetic sleeve through a plurality of openings, which is kept from rotating within the non-magnetic sleeve by at least one opening arranged along the length of the non-magnetic sleeve which corresponds to at least one tab formed by the molded material of the insert and a stator assembly having a plurality of symmetrical and interchangeable magnetic pole plates. Each of the plurality of magnetic pole plates comprises a substantially planar plate portion with a central opening therein and a plurality of prongs extending from the central opening and substantially perpendicular to the plate portion. The prongs of the plurality of magnetic pole plates create an opening that is dimensioned to receive the rotor assembly therein. A non-conductive material is the molded over the plurality of magnetic pole plates. | 12-09-2010 |
20100308672 | Can of a Drive Motor for a Pump Assembly - A can of a drive motor is provided for a pump assembly, wherein the can ( | 12-09-2010 |
20100314954 | OUTER ROTOR MOTOR AND METHOD OF MANUFACTURING THE SAME - An outer rotor motor comprises a rotor rotating about an axis, and a fixed stator. Provided over the inner peripheral surface of a cylindrical part of a fan connecting resin member are a ring-shaped yoke, a ring-shaped rotor magnet fixed to a fixing slot defined in the radially inner surface of the yoke, and yokes fixed to fixing slots defined in a radially inner surface of the rotor magnet. The rotor magnet is so magnetized that magnetic poles alternately change in a circumferential direction. The yoke covers a radially outer surface of the rotor magnet, and parts on a radially outer side of an axially upper surface and an axially lower surface of the rotor magnet. | 12-16-2010 |
20100320848 | MOTOR, PUMP, AND METHOD OF MANUFACTURING THE MOTOR - An object is to provide a motor that is designed to reduce the parts costs and the processing costs, without additional parts for fixing, by incorporating a fan cover, a condenser assembly box, and a foot plate into a molded stator. A motor | 12-23-2010 |
20110012444 | Stator and DC Brushless Motors including the Stator - A stator for a DC brushless motor includes an annular insulating ring integrally formed from an insulating material. The annular insulating ring includes an outer peripheral face and an inner peripheral face. A plurality of winding portions extends from at least one of the outer and inner peripheral faces. A coil unit is wound around each of the plurality of winding portions. The stator can be utilized in various DC brushless motors. Since the stator does not include conventional silicon steel plates and is comprised of an annular insulating ring and a coil unit, advantages including low manufacturing costs, assembling convenience, possible reduction in the axial height, and high rotational stability are obtained. | 01-20-2011 |
20110012445 | SPLIT STATOR MEMBER AND METHOD OF MANUFACTURING THE SPLIT STATOR MEMBER - A split stator is manufactured in such a manner that an adhesive is applied on a teeth part of a split core to form an adhesive layer, the split core is inserted in a lower die, a molten insulator material containing fibrous fillers is injected in the die, and an upper die is moved to form an insulator. In the insulator, the fibrous fillers are oriented in random directions, providing increased thermal conductivity. | 01-20-2011 |
20110018370 | METHOD OF FORMING A POWER TOOL - An electric motor has a stator in which an armature is disposed. The armature has a lamination stack having slots in which magnet wires are wound. An armature shaft extends coaxially through the lamination stack and a commutator is disposed on the armature shaft to which ends of the magnet wires are electrically coupled. The magnet wires are at least partially encased in thermally conductive plastic. When the thermally conductive plastic is molded, a balancing feature is formed of the thermally conductive plastic. In aspects, the balancing feature can include a layer of the plastic from which plastic can be removed during balancing; one or more balancing rings adjacent axial sides of the lamination stack from which plastic can be removed to balance the armature; or one or more balancing rings having one or more pockets therein in which one or more weights are disposed to balance the armature. | 01-27-2011 |
20110031823 | PLASTIC ELEMENT - The invention reduces vibration in a plastic element used in an electrical drive. The plastic element has a baseplate, at least two commutator brush boxes leading to a shaft passage channel which passes through the baseplate, and a bearing seat which is connected to the baseplate via at least one supporting arm for holding a shaft bearing. The invention provides for the entire contact area of the supporting arm with the baseplate to be arranged at a lateral distance from the commutator brush boxes. | 02-10-2011 |
20110037328 | FAN MOTOR FOR REFRIGERATOR - The present invention relates to a fan motor is for forced circulation of cool air in the refrigerator and comprises a molding unit, a shaft bearing unit, a rotor and an end cap. The molding unit comprises a stator having a shaft bearing unit mounting hole in the center thereof and core teeth which protrude radially outward so that a coil is wound thereon; and a circuit board having a circuit and a device which are electrically connected to the coil of the stator. The shaft bearing unit is inserted and fixed in the shaft bearing unit mounting hole. The rotor has a magnetic ring formed on the inner surface of a cup-shaped rotor housing, and a rotating shaft is fixed at the bottom center of the rotor housing. The end cap whose edge is connected to a side wall of the molding unit covering the rotor. | 02-17-2011 |
20110074230 | FAN MOTOR - A fan motor is provided. The fan motor includes a case having a cylindrical bearing housing, and a base unit fixing the cylindrical bearing housing; a pair of bearings fitted into the cylindrical bearing housing; a stator which has a wound coil and a bottom portion to which a PC board including a motor driving circuit and a lead wire for supplying the motor driving circuit with electrical current is fixed; a shaft supported by the pair of bearings; a rotor which faces the stator and is fixed to the shaft, and which has a magnet; and an impeller which is fixed to an outer peripheral portion of the rotor, and has plural blades. The stator, the PC board and the lead wire are molded by epoxy resin which has hardness of Shore D85 to D95 after curing and a glass transition temperature of 125° C. or higher. | 03-31-2011 |
20110095627 | INTEGRALLY MOLDED PLASTIC FAN MOTOR FRAME AND SINTERED OIL-IMPREGNATED BEARING STRUCTURE AND METHOD OF MANUFACTURING THE SAME - An integrally molded plastic fan motor frame and sintered oil-impregnated bearing structure includes a plastic fan motor frame and a sintered oil-impregnated bearing integrally enclosed in a central tube of the frame, so that the integrally molded structure is solid and precise. In a method of manufacturing an integrally molded plastic fan motor frame and sintered oil-impregnated bearing structure, a sintered oil-impregnated bearing is prepared and disposed in a mold that is used to integrally form a plastic fan motor frame through injection molding, so that the sintered oil-impregnated bearing is integrally received in a central tube of the plastic fan motor frame when the latter is integrally molded. The integrally molded plastic fan motor frame and sintered oil-impregnated bearing structure is solid and can be easily manufactured at high precision to avoid deformation of the bearing due to compression in press-fitting as in the prior art. | 04-28-2011 |
20110115312 | BRUSHLESS DC MOTOR - Disclosed herein is a brushless DC motor. The brushless DC motor includes a rotating shaft, a bearing, an integrated washer holder, a rotor casing, a stator and a support plate. The bearing rotatably supports the rotating shaft in the radial direction. The integrated washer holder supports the lower end of the rotating shaft and the circumferential outer surface of the bearing. The rotor casing integrally rotates along with the rotating shaft. A rotor magnet is attached to the inner surface of the rotor casing. The stator is provided around the circumferential outer surface of the integrated washer holder such that the stator faces the rotor magnet. Thus, when external electric power is applied to the stator, the rotor casing is rotated by reciprocal action between the stator and the rotor magnet. The integrated washer holder is mounted to the support plate. | 05-19-2011 |
20110115313 | ELECTRIC WATER PUMP - An electric water pump may include a stator generating a magnetic field according to a control signal and a rotor rotated by the magnetic field generated at the stator and pressurizing coolant. According to the electric water pump, the stator may include, a stator core formed by stacking a plurality of pieces made of a magnetic material, an insulator connecting pieces of the stator core to each other, a coil coiling the stator core so as to form a magnetic path, a Hall sensor detecting a position of the rotor, a Hall sensor board controlling the control signal supplied to the stator according to the position of the rotor detected by the Hall sensor, and a stator case wrapping and sealing the stator core, the insulator, the coil, the Hall sensor, and the Hall sensor board. | 05-19-2011 |
20110127859 | PERMANENT-MAGNETIC ROTOR - The invention relates to a permanent-magnetic rotor ( | 06-02-2011 |
20110127860 | BRUSHLESS DC MOTOR - A brushless DC motor. The motor includes a rotating shaft, a bearing rotatably supporting the rotating shaft in radial directions, a support holder made of a plastic material and supporting both the lower end of the rotating shaft and the outer circumferential surface of the bearing, a rotor casing having a rotor magnet therein and rotated along with the rotating shaft, a stator mounted to the outer circumferential surface of the support holder so as to face the rotor magnet and rotating the rotor casing by mutual cooperation with the rotor magnet in response to electricity applied from an external power source, and a plate, to which the support holder is locked using a locking screw. The brushless DC motor has a simple structure and reduces the material cost and assembly cost. | 06-02-2011 |
20110133579 | ROTOR ASSEMBLY WIRE SUPPORT - A rotor assembly for an electromechanical device includes a molded wire support. The wire support has a body including a first side spaced from a second side and a hole extending through the sides and configured to receive a shaft. The body includes a wall about the hole extending to the first side. At least one end turn support extends outwardly from the wall and is configured to support wires. A molded pocket extends into the wall from the second side without penetrating through to the first side. | 06-09-2011 |
20110148224 | AXIAL GAP PERMANENT MAGNET MOTOR, ROTOR USED FOR THE SAME, AND PRODUCTION METHOD OF THE ROTOR - A stator and a rotor are oppositely arranged having a gap between the stator and the rotor in a direction parallel to a rotary shaft. The rotor has permanent magnets forming field magnetic poles and soft magnetic material segments to cover at least stator-facing surfaces of the respective permanent magnets. Each of the soft magnetic materials forms a composite part together with the permanent magnet. The rotor further has a disc-shaped nonmagnetic molded frame molded so as to cover the periphery of the composite part including the permanent magnet and the soft magnetic material segment while leaving a stator-facing surface of the soft magnetic material segment as an exposed surface. The composite part (including the permanent magnet and the soft magnetic material) and the nonmagnetic molded frame are integrated by molding of the molded material. | 06-23-2011 |
20110156503 | ROTOR FOR A ROTARY ELECTRIC MACHINE INCLUDING AN OPEN CHAIN OF AT LEAST TWO INTERPOLAR MEMBERS DEFINING A MAGNETIC BARRIER | 06-30-2011 |
20110156504 | MOTOR AND METHOD FOR MANUFACTURING THE SAME - A motor comprises a rotor having a permanent magnet, a stator core having a stator coil and a frame for accommodating therein the rotor and the stator core. The stator coil has a shape of a concentrated winding being fitted and wound to a tooth of an one-slot core as one slot per one phase in the stator core and has a molded high thermal conductivity resin for covering the stator coil. Both end faces of the stator coil are respectively provided with insulating and heat-transfer layers which are constituted by a part of the molded high thermal conductivity resin, and each of the electric insulating and heat-transfer layers is put in contact with the frame. | 06-30-2011 |
20110175464 | MOTOR STATOR AND MOLDED MOTOR - A motor stator is disclosed. Each of a first phase, second phase and third phase of three-phase winding has multiple toroidal coils and crossover wires connecting the coils. The crossover wire of the first phase runs inside the second phase coil and the third phase coil. The crossover wire of the second phase runs over the first phase coil with a guide by guide posts and runs inside the third phase coil. The crossover wire of the third phase runs over the first phase coil and the second phase coil with a guide by the guide posts. | 07-21-2011 |
20110175465 | GEARBOX DRIVE UNIT - The invention relates to a gearbox drive unit ( | 07-21-2011 |
20110181133 | PRODUCTION METHOD OF VIBRATING MOTOR AND ROTOR FOR VIBRATING MOTOR - A vibrating motor has a shaft, a stator including a yoke having pole teeth extending toward an axis of the shaft from an inner circumference and coils wound around the pole teeth, a rotor including an eccentric weight formed on a radially outer surface of the shaft, and a permanent magnet integrally formed with the eccentric weight, and a bearing device rotatably supporting the rotor maintaining clearance between the inner circumference of the pole teeth and the rotor. The rotor has a structure in which the shaft, the eccentric weight, and the permanent magnet are integrally formed with each other by a thermoplastic magnetic material composing the permanent magnet. | 07-28-2011 |
20110187210 | PERMANENT MAGNET ROTOR - A permanent magnet rotor for an brushless electric motor of the kind having an internal stator, has a supporting structure made of molded plastic that includes an essentially disc-shaped portion to which a shaft is centrally connected. The periphery of the disc is joined to an essentially cylindrical cage portion which extends coaxially around the shaft. A plurality of magnetically conductive yokes are disposed in the cage portion. The yokes are shaped as ring segments which as a whole form an essentially cylindrical wall. A plurality of ring segment permanent magnets are each disposed astride the junction of a pair of adjacent yokes. Each yoke has a dimension which increases from the circumferential ends thereof towards its circumferentially intermediate portion, such that the cross-sectional area of the yoke in a radial plane correspondingly increases from the ends thereof towards its intermediate portion. | 08-04-2011 |
20110193429 | COIN-TYPE VIBRATION MOTOR - Disclosed is an improved coin-type vibration motor, which has a larger vibration force and is not easily broken even by a strong impact. A permanent magnet in which an N-pole and an S-pole are alternately arranged is disposed centering around a rotation shaft fitted in a center of an inside of the case, and a brush having an upwardly and slantingly extending shape is connected with a flexible printed circuit disposed between the permanent magnet and a bottom surface of the case. A rotor spaced apart from an upper part of the permanent magnet and rotatably supported by the rotation shaft according to that a rotation center is fitted in the rotation shaft. A wiring board including a commutator is assembled with a lower part of a bearing, and plural coils symmetrically spaced apart from each other centering around the rotation shaft and a vibrator of high specific gravity are sequentially layered on the wiring board. The wiring board, the plural coils, and the vibrator are integrally assembled by a resin injection molding body, to form the rotor. The vibrator has a shape of a flat plate shaped like an arc or a fan extending from a circumference of the bearing to a circumference of the rotor. Having a shape eccentric from the rotation shaft due to its arc or a fan shaped coin type, the rotor eccentrically rotates to generate the increased vibration force by the eccentricity. | 08-11-2011 |
20110193430 | MOLDED MOTOR - A molded motor including a stator including a housing formed by integrally molding an armature winding and a printed circuit board with resin containing a fibrous reinforcing material and filler; a magnet rotor rotatably disposed to face the stator; and a plurality of lead wires led out to outside. The printed circuit board is provided with a plurality of lands connecting the lead wires by soldering, and a round hole between the plurality of lands filled with the resin, and the reinforcing material is oriented in a board thickness direction of the printed circuit board. | 08-11-2011 |
20110210625 | MOTOR GEARBOX UNIT - The invention relates to a motor gearbox unit ( | 09-01-2011 |
20110215657 | METHODS AND SYSTEMS FOR ROUTING CONDUCTORS IN ELECTRO-MECHANICAL MACHINES - An apparatus for routing conductors, such as signal carrying conductors, from within an electro-mechanical machine housing to a location outside the housing is provided. The apparatus includes a base for fitting in a first opening in the housing and securing a lower portion of the apparatus to the housing. The apparatus also includes a channel for carrying the conductors, which may be formed in a shape corresponding to a profile of a portion of the housing. The apparatus includes a fastener, such as a snap-type mechanical fastener, for securing the apparatus to the housing. | 09-08-2011 |
20110215658 | ELECTRIC MOTOR, ELECTRIC MOTOR UNIT, BLOWER, AND ELECTRIC DEVICE - A power supply connecting member is configured by a housing of the power supply connecting member molded with a terminal of the power supply connecting member by a resin. The terminal of the power supply connecting member has three bent portions, two bent portions are perpendicular to an axial direction before the terminal is bent, and the remaining bent portion is parallel to the axial direction before the terminal is bent. A distal end on a bending side of the terminal of the power supply connecting member is inserted into the power supply connecting member housing to configure the power supply connecting member. An output shaft support portion unit is configured such that a bearing to hold a rotor and an elastic member (spring for example) to hold the bearing are stored in a bottom cover (lower cover) having a recessed portion and a lid cover (upper cover) is press-fitted. | 09-08-2011 |
20110227428 | STATOR STRUCTURE FOR ELECTRIC MACHINE - An electric machine includes a stator stack of laminations, pierced with a cylindrical-walled passage intended to house a rotor that rotates about an axis inside the stator, creating an air gap between the two, and a casing enclosing the resulting assembly in whole. The stator includes a magnetic circuit of laminations stacked between first and second terminal faces crossed, firstly, by the cylindrical passage and, secondly, by a series of slots housing conductors, which are folded over, in winding heads potted in a block of resin, from one slot to the next as they leave each terminal face, to form coils. An external lateral wall of the magnetic circuit is blocked on an inside portion in an internal lateral wall of a casing sleeve to form an entity capable of withstanding torques generated in the air gap during operation. A thin and flexible electrical insulating reinforcing piece is interposed between an internal wall of a first tubular end and a corresponding portion of the block of resin, which surrounds a region of the winding heads in which the conductors follow a looped path in the block of resin. A wedging unit that wedges the insulating reinforcing piece in position is provided to prevent the insulating reinforcing piece from protruding axially internally on the internal wall with respect to the region so as to leave a determined annular sector of the internal wall in direct adhering contact with the block of resin. | 09-22-2011 |
20110234024 | BRUSHLESS MOTOR AND ELECTRIC APPARATUS PROVIDED WITH SAME - A brushless motor includes a stator molded integrally with a resin having a fixing member including a stator iron core and a winding wound thereon, a rotor of a disk-like iron core holding a ferrite resin magnet in a circumferential direction, the rotor arranged to face the stator about a shaft, a bearing rotatably supporting the shaft, and conductive brackets fixing the bearing. The brackets are electrically connected to each other with a conducting pin in the stator. | 09-29-2011 |
20110234025 | MOTOR AND ELECTRIC DEVICE USING SAME - A motor includes: a stator molded integrally with an insulating resin having a fixing member including a stator iron core and a winding wound thereon; a rotor arranged to face the stator about a shaft; a bearing rotatably supporting the shaft; a bracket fixing the bearing; and a drive circuit substrate having a drive circuit mounted thereon for driving the winding. The stator iron core is electrically connected to a ground serving as a reference point of a zero potential on the drive circuit substrate through a conductive member. | 09-29-2011 |
20110234026 | MOTOR AND ELECTRIC DEVICE USING SAME - A motor includes: a stator including a stator iron core on which a winding is wound; a rotor including a rotating body that holds a magnet in a circumferential direction to face the stator and a shaft that fastens the rotating body to penetrate a center of the rotating body; a bearing that supports the shaft; and two conductive brackets that fix the bearing. The two brackets are electrically connected to each other, and a capacitor serving as an impedance adjusting member that adjusts impedances between the stator iron core and the electrically connected two brackets is arranged. | 09-29-2011 |
20110241452 | MOTOR ASSEMBLY - A motor assembly includes a flexible base mount having an integrally formed axial tube, support ledges disposed on the axial tube to axially support a stator disposed on the axial tube to be firmly engaged with the stator for further ensuring immobility, a flexible mounting shell member axially insertable into the axial tube and having a receptacle cap at a lower end thereof, retaining and retained members disposed between the mounting shell member and the axial tube to guard relative movement therebetween, and an antifriction bearing disposed in the mounting shell member to bear a revolving shaft of a rotor. All the constituted components can be standardized and modularized. With such simple construction, the motor assembly can be easily assembled. | 10-06-2011 |
20110241453 | ELECTRICAL MACHINE AND METHOD FOR THE MANUFACTURE OF STATOR SECTIONS THEREFOR - Electrical machine with a rotor with magnets carried by an annular carrier, in which a magnetic field is created over an air gap between two rotor parts, at which an ironless stator with windings is arranged. A space saving machine is achieved with a stator which is assembled of sections with channels for circulation of coolant, and which has windings with an annular, compact central part providing the active part of the stator. A method for manufacturing stator sections for such electrical machines is described, where a winding is embedded in an electrically insulating casting material for providing a rigid element. A coil is arranged in one part of a bisected shell housing or a bisected casting mold, and the shell housing or mould is closed, casting material is introduced through an opening and the inner part of the housing or mould is subject to underpressure and possibly vibration. | 10-06-2011 |
20110241454 | PUMP ASSEMBLY - A pump assembly with a motor housing ( | 10-06-2011 |
20110254387 | DRIVE UNIT OF ELECTRIC MOTOR AND MOTORIZED EQUIPMENT USING THE DRIVE UNIT - A power module of a drive unit of an electric motor is formed by inserting multiple power transistors, which supply a drive current to a coil wound around a stator or a rotor, and wirings connecting the power transistors in a resin, which is formed in the shape of a plate, by resin molding. Electronic components such as aluminum electrolytic capacitors, a choke coil and a first connector are provided in a board thickness direction of the power module and are electrically connected with the wirings of the power module. Thus, a construction for electrically connecting the wirings of the power module formed by the resin molding and the electronic components can be simplified. | 10-20-2011 |
20110254388 | MOTORIZED EQUIPMENT - A power module, a control board and a heat sink are provided on one axial side of a shaft of an electric motor, which consists of a motor case, a stator, a rotor, the shaft and the like. The power module is electrically connected with extraction lines, which extend from a coil wound around the stator, and supplies a drive current to the coil. The control board for controlling switching of the power module is provided on a motor case side of the power module. The heat sink is provided on a side of the control board opposite to the motor case. Thus, when setting of an output of the electric motor is changed, a body size of the heat sink can be changed without changing a positional relationship between the control board and the electric motor and a positional relationship between the power module and the electric motor. | 10-20-2011 |
20110278964 | VEHICLE WINDSHIELD WIPER MOTOR HAVING MULTIPLE ATTACHMENT POINTS, AND MOUNTING STRUCTURE FOR SAID MOTOR - A vehicle windshield wiper motor including an output shaft and an attachment device for attaching a mounting structure onto a tube, the attachment device including an attachment base and a plate. The base includes at least five attachment members for attaching parallel rods therebetween, three attachment members forming a first group being spaced around the output shaft of the motor, and two attachment members forming a second group being placed at a sufficient distance from at least one of the three attachment members of the first group to form a cavity capable of holding the tube, the cavity being closable by the plate. A mounting structure can mount such a windshield wiper motor. | 11-17-2011 |
20110291498 | Electric Motor and Rotor - A rotor of an electric motor is provided in which a permanent magnet holding member can be assuredly fixed to a rotor main body and the rotor main body can be easily worked and inexpensively manufactured. | 12-01-2011 |
20110291499 | MOLDED MOTOR AND MOBILE BODY THEREWITH - A molded motor having a stator having an annular stator core coated with molding resin has a motor case which joins the stator. The motor case has a rib portion formed at the outer circumference of the junction face between the motor case and the stator. | 12-01-2011 |
20110298311 | ELECTRIC MOTOR AND MOBILE OBJECT - An electric motor includes: a rotor configured to rotate about a rotating shaft; a stator having a coil; and a mold resin configured to mold the stator. The stator includes a bus ring which is provided along a circumferential direction of the stator and which is connected to the coil. The bus ring has a terminal exposed from the mold resin to the outside. The terminal is held by a terminal holder provided outside the mold resin. | 12-08-2011 |
20110309693 | MOLDED MOTOR AND ELECTRIC VEHICLE - A first motor case ( | 12-22-2011 |
20110316364 | MOTOR END CAP WITH INTERFERENCE FIT - A rotary machine (e.g., motor or generator) has end caps with plastic piloting rings that engage a stator's plastic winding frame in an interference fit, so that a rotor seated by bearings in the end caps is properly aligned with the stator. The flexibility of the plastic-to-plastic fit allows looser tolerances in comparison to machining of all-metal end caps, while the average circle of the piloting ring's outer diameter still assures proper concentricity of rotor shaft, bearings, piloting rings and stator. | 12-29-2011 |
20110316365 | SLIM TYPE STATOR AND METHOD OF MAKING THE SAME, SLIM TYPE MOTOR HAVING THE STATOR, AND DIRECT DRIVE APPARATUS FOR DRUM-WASHING MACHINE - Provided is a stator for use in a brushless direct-current (BLDC) that is used for a direct drive (DD) apparatus for drum-washing machines that is mounted in an allowable space without reducing size of a tub related to a laundry capacity in a drum-washing machine, to thereby make a basket in the inside of the tub rotationally driven in a direct drive method. The slim type stator includes: a number of division cores; a number of bobbins that partially surrounds the number of the division cores; an electric power terminal block on the outer portion of which a connector is provided in which external electric power is applied through the connector and that has terminal pins that are extended to the inside of the stator from the connector; a wiring box that is integrally formed with each bobbin and that mutually connects a stator coil with the terminal pins per phase; and a stator holder that mutually connects a number of division stator cores around which coils are wound with the outer circumference of the bobbins and supports the number of division stator cores. | 12-29-2011 |
20120001500 | Stepping Motor - Disclosed herein is a stepping motor for a slim optical disk drive (ODD). A casing which protects and covers a stator of a motor part is divided into two casing parts, and a casing part adjacent to an end of a rotating shaft has at least two insert holes in an end plate thereof. Thus, a support member which supports a center guide is fastened to the casing in such a way that the support member is inserted into the insert holes. The casing part adjacent to the end of the rotating shaft is integrally formed with the support member by insert molding. Therefore, the stepping motor of the present invention can satisfy the trend of a reduction in size and thickness. | 01-05-2012 |
20120007452 | ENCAPSULATED STATOR SPHERICAL ROTOR MOTOR PUMP - A spherical rotor wet rotor motor centrifugal pump having an electric motor that has a plastic encapsulated electrical motor stator and where plastic may also separate the electrical motor stator from coming in contact with the pumped fluid and where plastic may also form the housing of the electrical motor stator. | 01-12-2012 |
20120007453 | DUAL-ROTOR MOTOR - The invention relates to an electric motor with an outer rotor and an inner rotor, wherein the stator carrying the excitation coils is formed as a hollow cylinder and is arranged between the cup-shaped outer rotor and the inner rotor and is rigidly connected on the front to the housing or to a part of the electric motor rigidly connected to the housing, wherein the stator comprises a plurality of stator teeth which rest against supports extending in the axial direction, wherein the supports are formed by an injection moulding composition of plastics material, in particular a thermosetting plastics material which fills the space between the respectively adjacent excitation coils and the stator teeth, the supports extending into and/or through the metallic housing or a metallic part rigidly connected to the housing and rest against it. | 01-12-2012 |
20120019080 | FRAMELESS ELECTRIC MOTOR ASSEMBLY - An electric motor assembly including a stator assembly and a rotor assembly extending through the stator assembly. A first end cap is located adjacent to a first end of the stator assembly and includes a bearing insert supporting a first end bearing for receiving an end of a rotor shaft. A second end cap is located adjacent to a second end of the stator assembly. An endbell is formed separately from the second end cap and is positioned within the second end cap. The endbell supports a bearing for a second end of the rotor shaft. An overmold material extends through the stator assembly. The overmold material may form the first end cap, supporting the bearing insert therein, and extends within and substantially fills an annular space within the second end cap | 01-26-2012 |
20120019081 | STATOR FOR ELECTRIC ROTATING MACHINE - A stator includes an annular stator core and a stator coil. The stator coil is formed of a plurality of electric wires mounted on the stator core. The stator coil has a coil end part that protrudes from an axial end face of the stator core so as to be located outside slots of the stator core. The electric wires forming the stator coil are grouped into a plurality of electric wire sets. Each of the electric wire sets consists of a predetermined number of the electric wires which are electrically connected to one another. The stator coil further includes a plurality of bridging wires. Each of the bridging wires extends, on an axially outer periphery of the coil end part of the stator coil, to electrically connect a corresponding pair of the electric wire sets. Further, at least two of the bridging wires are fixed to one another. | 01-26-2012 |
20120032536 | ELECTRIC MOTOR AND ELECTRIC EQUIPMENT WITH SAME - A motor includes a stator integrally molded together with a stator member, which includes a stator iron-core wound with a winding, by insulating resin, a rotor mounted on a shaft as a center and confronting the stator, two bearings supporting the shaft rotatably, brackets fixing the bearings, and a drive circuit board including a drive circuit which supplies an electric current to the winding and drives the rotor. Either one of the two bearings includes an outer ring and an inner ring both of which are electrically insulated from each other. | 02-09-2012 |
20120032537 | RADIAL ANISOTROPIC MAGNET MANUFACTURING METHOD, PERMANENT MAGNET MOTOR USING RADIAL ANISOTROPIC MAGNET, AND IRON CORE-EQUIPPED PERMANENT MAGNET MOTOR - To improve tranquility and controllability of an iron core-equipped permanent magnet motor with an improved maximum energy product (BH) | 02-09-2012 |
20120038229 | MOTOR AND ELECTRICAL EQUIPMENT EQUIPPED WITH SAME - A motor includes a stator having a stator iron-core on which a winding is wound, a rotor having a rotary body holding a permanent magnet opposed to the stator along a circumferential direction and a shaft joined to the rotary body such that it extends through the rotary body at the center, bearings supporting the shaft, two conductive brackets for fixing the bearings, and a printed circuit board on which a drive circuit for driving the winding is mounted. A dielectric layer is provided between an outer wall of the rotary body and the shaft, the two brackets are electrically connected together, and a capacitor is connected between the stator iron-core and the brackets for adjusting impedance. | 02-16-2012 |
20120043833 | Motor for washing machine and washing machine having the same - A motor include a rotor to rotate a drum of the washing machine, and the rotor includes a base, a ring-shaped rib formed at the edge of the base, and a back yoke ring connected to the ring-shaped rib. The back yoke ring is inserted into the ring-shaped rib while the base is formed by injection molding. | 02-23-2012 |
20120043834 | DC MOTOR - The invention relates to a DC motor | 02-23-2012 |
20120062050 | Rotor for Motor - A rotor for a motor includes a shaft having an outer periphery with an engaging portion. At least one coupling member includes an engaging hole. The shaft extends through the engaging hole of the at least one coupling member. The at least one coupling member is engaged with the engaging portion of the shaft by tight coupling. A plastic magnet envelops the shaft and the at least one coupling member by injection molding. The at least one coupling member prevents the plastic magnet from disengaging from the shaft, providing enhanced engaging effect while reducing structural complexity and enhancing assembling convenience. | 03-15-2012 |
20120062051 | SPLIT STATOR AND MANUFACTURING METHOD THEREOF - Disclosed are a split stator and a manufacturing method thereof with which insulation reliability can be improved by preventing deformation or cracking of the insulator by eliminating slippage of the insulator at the coil end face. A slip prevention mechanism that prevents slippage of the insulator is provided at the coil end face, and using insert molding, the insulator is integrally molded to a split stator core provided with the slip prevention mechanism. | 03-15-2012 |
20120062052 | ROTOR FOR AN ELECTRIC EXTERNAL ROTOR MOTOR AND EXTERNAL ROTOR MOTOR - Disclosed is a rotor ( | 03-15-2012 |
20120068557 | Electric Motor Arrangement for a Medical, Especially Dental, Tool Holder - An electric motor arrangement for a medical, especially dental, tool handle, which is extremely compact and resistant to sterilizing temperatures due to a plurality of advantageous embodiments. The electric motor arrangement is characterized by the following properties: the use of a light source based on SMD-LED or LED as a semiconductor chip; the shortening of the INTRAmatic coupling to between 20 mm and 25 mm; a hermetically extruded stator comprising integrated media tubes and molded connection sockets; the stator winding is embodied as a coil segment winding instead of an H winding or triangle; and the winding head has openings for media tubes. | 03-22-2012 |
20120080961 | ONE-PIECE RESIN COMPONENT FOR DYNAMOELECTRIC MACHINE AND MANUFACTURING METHOD USING THE SAME - In a one-piece resin component, a plurality of stackable resin portions is resin-molded integrally with a resin housing of a dynamoelectric machine and radially outwardly projects from the resin housing. Each the plurality of stackable resin portions is adapted to be stacked against a corresponding one of a plurality of stackable resin portions of another one-piece resin component that is generally identical to the one-piece resin component. | 04-05-2012 |
20120080962 | BRUSH HOLDER FOR AN ELECTRIC MOTOR - A brush holder for an electrical motor has an electrically insulating support structure supporting a number of brushes. The support structure has a molded-plastic body incorporating conducting elements forming conductive paths for connecting the brushes to a power supply. A discontinuity is provided in one of the connection paths. A resiliently deformable and electrically conductive strip is connected across the discontinuity with a substantially permanent connection at one end and a heat-meltable connection at the other, with a resilient pre-load tending to break the heat-meltable connection. A voltage drop resistor is provided for operating the motor at a reduced speed. One terminal of the resistor is connected to one side of the discontinuity via a thermally and electrically conducting connection. | 04-05-2012 |
20120091830 | ANTI-SEPARATING STRUCTURE OF SENSING MAGNET FOR EPS MOTOR - Disclosed is an anti-separating structure of a sensing magnet for EPS motor, capable of applying a mechanical coupling force to a magnet and a plate to stably prevent the magnet from being disengaged to an axial and rotational direction, the structure including a plate, and a magnet formed on an upper surface of the plate and injection molded along with the plate, whereby a manufacturing process can be simplified to achieve an excellent adhesive strength. | 04-19-2012 |
20120091831 | MOUNTING DEVICE FOR DISK IN SPINDLE MOTOR - A spindle motor including a base, a bearing housing supported on the base, a bearing provided within the bearing housing, a rotating shaft rotatably supported by the bearing, a stator including a core fixed to the bearing housing and coils wound around the core, a rotor including a rotor yoke fixed to the rotating shaft, and a first magnet installed on the rotor yoke facing the stator, a turntable positioned on the rotor yoke, rotating together with the rotating shaft, a center guide member coupled to the rotating shaft at an upper side of the turntable, an elastic member disposed between the turntable and the center guide member for elastically supporting the center guide member. | 04-19-2012 |
20120104878 | PUMP MOTOR CONTROL ASSEMBLY - A pump motor assembly operable to provide driving power to a fluid pump includes a rotor, a stator, a case housing the rotor and the stator, and a control assembly mounted to the case and operable to control motor operation. The control assembly includes an information display and a cover overlying the display, with a window section in general alignment with the display. The control assembly also includes a filler plate underlying the window section to prevent any air gap along an underside thereof, allowing the display to be visible while reducing the risk of condensation buildup. The control assembly further includes a low voltage housing with the display disposed in a first compartment defined thereby, and a high voltage housing with a high voltage component disposed in a second compartment defined thereby. The low voltage housing includes a thermal and fluid barrier that substantially fluidly separates the first and second compartments to reduce the risk of liquid electrical conduction therebetween and to reduce heat transfer into the low voltage housing. | 05-03-2012 |
20120104879 | NOISE REDUCTION STRUCTURES FOR ELECTRICAL MACHINES - An electrical machine rotor or stator having a plurality of salient poles and a barrier that inhibits the flow of air along an axial path between the environment outside the rotor or stator and the space between adjacent pairs of the poles. The barrier serves to reduce acoustic noise. | 05-03-2012 |
20120112567 | MOTOR ASSEMBLY - A motor assembly includes a working part, a synchronous motor having a shaft, and a mechanical coupling joining the working part to the motor. The coupling has two driving teeth fixed relative to the shaft, two driven teeth fixed relative to the working part, and two middle members. The coupling provides a predetermined range of angular movement between the motor and the working part. The middle members are circumferentially distributed between the two driving teeth and between the two driven teeth, thereby each of the middle members is movable by the driving teeth to contact the driven teeth and provides an interference between a driving tooth and a driven tooth to drive the working part. | 05-10-2012 |
20120119597 | MOUNTING DEVICE FOR DISK IN SPINDLE MOTOR - A spindle motor including a base, a bearing housing supported on the base, a bearing provided within the bearing housing, a rotating shaft rotatably supported by the bearing, a stator including a core fixed to the bearing housing and coils wound around the core, a rotor including a rotor yoke fixed to the rotating shaft, and a first magnet installed on the rotor yoke facing the stator, a turntable positioned on the rotor yoke, rotating together with the rotating shaft, a center guide member coupled to the rotating shaft at an upper side of the turntable, an elastic member disposed between the turntable and the center guide member for elastically supporting the center guide member. | 05-17-2012 |
20120119598 | Motor Cover and Motor Comprising Same - The present invention relates to a motor cover including: a first cover formed at one side with a housing coupling unit that is coupled with a motor housing; a second cover coupled to the other side of the first cover; and alignment units formed at the first and second covers to prevent a twist between the two covers by aligning an assembly position when the first cover and the second covers are assembled, and a motor including the motor cover, whereby a twist can be prevented when the motor cover is assembled and a dimensional accuracy can be enhanced. | 05-17-2012 |
20120126637 | Permanent Magnet Rotors and Methods of Manufacturing the Same - A rotor for an electrical motor includes a spindle, a plurality of sintered permanent magnets arranged around the spindle, a compacted powdered soft magnetic material at least partially surrounding the plurality of sintered permanent magnets, and a plurality of discrete regions of compacted powdered non-magnetic material at least partially surrounding the plurality of sintered permanent magnets. The discrete regions of non-magnetic material are at least partially embedded in the soft magnetic material and the soft magnetic material and the non-magnetic material couple the plurality of sintered permanent magnets with the spindle. | 05-24-2012 |
20120126638 | AUTOMOTIVE ALTERNATOR RECTIFYING APPARATUS - The circuit board includes: a first resin-molded body; a second resin-molded body; and a plurality of terminals each including: a positive electrode terminal portion to which is connected a lead of the positive-side rectifying element to be connected thereto; a negative electrode terminal portion to which is connected a lead of the negative-side rectifying element to be connected thereto; and a trunk portion that links the positive electrode terminal portion and the negative electrode terminal portion. The plurality of terminals are each held between the first resin-molded body and the second resin-molded body so as to be separated from each other such that the trunk portion is disposed between mating surfaces of the first resin-molded body and the second resin-molded body, the positive electrode terminal portion is inserted through the second resin-molded body, and the negative electrode terminal portion is inserted through the first resin-molded body. | 05-24-2012 |
20120126639 | STATOR HOUSING ASSEMBLY HAVING OVERMOLDED MAGNETS - A permanent magnet electric motor has a stator and a rotor. The stator includes a stator housing having opposed axial ends and magnets affixed to an inner surface of the stator housing, and overmold material overmolded around the plurality of magnets to securely hold the plurality of magnets to the inner surface of the stator housing. The thickness of the overmold material, as measured from the inner surface of the stator housing to an inner surface of the overmold material, is greater at edges of the magnets than at a center of the magnet. | 05-24-2012 |
20120146434 | ROTARY ELECTRIC MACHINE - A rotary electric machine according to an embodiment includes a substantially cylindrical rotator that is freely rotatably supported, a stator, and a bracket that supports the rotator and the stator. The stator includes stator coils in which a plurality of air-cored coils are arranged in a ring shape and are integrated by resin, each of the air-cored coils being formed by winding a round copper wire and having an outer shape subjected to pressure molding, and stator cores divided for each of teeth. | 06-14-2012 |
20120146435 | ELECTRICAL MACHINE WITH A COOLING CHANNEL AND METHOD FOR MANUFACTURING THE SAME - The invention relates to a stator ( | 06-14-2012 |
20120169154 | AXIAL-FLUX BRUSHLESS ELECTRIC MOTOR - An axial-flux brushless electric motor which can be used in various applications, including, for example, driving a propulsion wheel of a vehicle. In one embodiment, the electric motor comprises a rotor comprising a plurality of permanent magnets defining a plurality of rotor poles. The electric motor also comprises a stator axially spaced from the rotor and comprising: at least one winding for conducting current; an electronic controller for controlling the current supplied to the at least one winding to rotate the rotor; and consolidating material in which the at least one winding and the electronic controller are embedded. | 07-05-2012 |
20120169155 | FAN MOTOR FOR CIRCULATING COOLED AIR - A fan motor for circulating cooled air including: a stator assembly having a stator core having teeth ends protruded annularly outwardly and coils wound on the teeth ends of the stator core and molded out of resin to have a donut-like shape having a bearing insertion hole formed to be passed vertically through the center thereof; a bearing assembly adapted to be insertedly fixed into the bearing insertion hole of the stator assembly; and a rotor fan assembly having a rotor having a cup-shaped case, a rotor shaft formed in the center of the case in such a manner as to be passed vertically through the center of the case, and magnetic poles formed along the inner periphery of the case, and a fan having a hub coupled to the top end periphery of the rotor shaft of the rotor and blades disposed around the hub. | 07-05-2012 |
20120181880 | ELECTRIC MOTOR - An electric motor has a wound stator and a permanent magnet rotor. The rotor includes a shaft, a hub fixed on the shaft, a plurality of rotor core segments and magnets fixed around the hub, and a pair of covers fixed to axial ends of the rotor core segments. The hub and covers are formed on the rotor core segments by inserting molding and one of the covers has openings to allow the magnets to be inserted into spaces formed between adjacent rotor core segments such that the rotor core segments and magnets are alternately arranged in a circumferential direction of the rotor. | 07-19-2012 |
20120181881 | OVER-MOLDED LIQUID COOLED THREE-STACK MOTOR - A brushless, liquid or air cooled, direct current motor formed from a three stack stator and three section rotor assembly using an integrated water cooled or air cooled housing and over-molding techniques. | 07-19-2012 |
20120187781 | Motor - It is an object of this invention to provide a motor with a structure including a bearing only on one side whose assembly accuracy can be easily increased. In a stepping motor including a shaft as a rotating shaft of a rotor and a bearing which rotatably supports the shaft, the bearing is provided only on one side of the shaft, and a one-piece molded member is provided, the one-piece molded member obtained by integrally molding, from resin, the bearing and at least one on the bearing side of a front plate and an end plate. | 07-26-2012 |
20120187782 | Hand-Held Power Tool with a Drive Motor and a Gear Mechanism - A hand-held power tool with a drive motor and a gear mechanism has elastomer elements moulded onto the inner side of the housing. At least two elastomer elements form elastomer bearings for bearing the drive motor. | 07-26-2012 |
20120194009 | Motor and Motor Assembling Method - A motor assembling method is disclosed. The motor assembling method provides a base with a shaft tube, wherein the shaft tube has a thermoplastic positioning portion on an opening end thereof, and a shaft tube assembly is disposed into the shaft tube via the opening end. The motor assembling method further heats the thermoplastic positioning portion by a heating fixture to melt and deform the thermoplastic positioning portion until the opening end of the shaft tube has shrunk, wherein the shaft tube assembly is held in position in the shaft tube after the thermoplastic positioning portion has cooled down and solidified. The motor assembling method further couples a stator unit with an outer circumferential wall of the shaft tube, and couples a rotor with the shaft tube. | 08-02-2012 |
20120194010 | Motor and Motor Assembling Method - A motor assembling method is disclosed. The motor assembling method provides a base with a shaft tube, wherein the shaft tube has a thermoplastic positioning portion on an opening end thereof, and a shaft tube assembly is disposed into the shaft tube via the opening end. The motor assembling method further heats the thermoplastic positioning portion by a heating fixture to melt and deform the thermoplastic positioning portion until the opening end of the shaft tube has shrunk, wherein the shaft tube assembly is held in position in the shaft tube after the thermoplastic positioning portion has cooled down and solidified. The motor assembling method further couples a stator unit with an outer circumferential wall of the shaft tube, and couples a rotor with the shaft tube. | 08-02-2012 |
20120194011 | ROTOR ASSEMBLY - A rotor assembly including a rotating shaft, a rotor core, a permanent magnet, a magnetic ring support, and a magnetic ring. The permanent magnet is mounted on the outer side surface of the rotor core. The magnetic ring is nested on the magnetic ring support, and the magnetic ring support and the rotor core are made as a whole by injection molding. The rotor assembly is relatively simple to produce, low in cost, and features improved efficiency. | 08-02-2012 |
20120200179 | COOLING STRUCTURE OF ROTATING ELECTRIC MACHINE - A cooling structure of a rotating electric machine includes a rotor core formed of a plurality of electromagnetic steel plates and a resin molding portion molding the rotor core with resin. The rotor core is provided with a through hole passing therethrough in the axial direction of the central axis that is a rotation axis. The rotor core is provided inside the through hole with an oil passage through which oil circulates. The resin molding portion has a cover portion covering the outer peripheral side of the oil passage. This configuration can provide the cooling structure of the rotating electric machine that achieves efficient cooling while suppressing occurrence of energy loss. | 08-09-2012 |
20120205993 | AUTOMOTIVE ROTARY ELECTRIC MACHINE - A voltage regulator negative electrode terminal is mounted to an axially outer end surface of a rear bracket so as to be in a state of electrical connection with the rear bracket by fastening a flange portion to a mounting pedestal of the rear bracket using a voltage regulator fixing second screw. A screw loosening restricting lug is disposed so as to project from a floor portion of a protective cover so as to face the voltage regulator fixing second screw so as to have a predetermined clearance in an axial direction. | 08-16-2012 |
20120212080 | PERMANENT MAGNET MOTOR - A permanent magnet motor has a rotor and a stator. The rotor has a shaft, a rotor core and commutator fixed to the shaft, and rotor windings wound about poles of the rotor core and electrically connected to the commutator. The stator has an axially extending round housing, a ring magnet member fixed to an inner surface of the round housing, an endcap, and at least one pair of brushes in sliding contact with the commutator. A chamber is formed by the housing and the endcap. The commutator is disposed in the chamber. A window lift device incorporating the motor is also provided. | 08-23-2012 |
20120228967 | Electric Motor - An electric motor includes a stator and a rotor. The stator includes a stationary shell, a polymer element located in the stationary shell, a coil unit located in the polymer element, two covers each connected to a related one of two opposite sides of the stationary shell, two caps each attached to a related one of the covers, and two bearings each fit in a related one of the caps. The rotor includes an axle inserted through the coil unit and supported on the bearings, two shields each connected to a related one of two opposite sides of the axle, and two groups of magnets. Each of the groups of magnets is connected to a related one of the shields. | 09-13-2012 |
20120242176 | MOTOR STATOR HAVING CHANNELS USED FOR COOLING AND METHOD OF PROVIDING THE CHANNELS - An example stator assembly includes a stator for establishing a core side of a channel. A plurality of stator windings are secured relative to portions of the stator core. The plurality of stator windings establish a winding side of the channel. At least a portion of the channel is configured to communicate a cooling fluid from a first axial end of the stator core to an opposing axial end of the stator core. | 09-27-2012 |
20120242177 | HIGH POWER ROTARY DEVICE - A high power rotary device includes a stator comprising a plurality of wire coils each surrounding a non-magnetizable core; a rotor with permanent magnets embedded therein, the rotor being disposed adjacent to the stator, the rotor being mounted on a rotatable drive shaft; a position sensor operably connected to the rotor; and a control circuit operably connected to the position sensor and the wire coils to activate the wire coils. In this motor the control circuit transfers electrical charge from a first coil to a second coil. | 09-27-2012 |
20120248900 | STATOR STRUCTURE - A stator structure, including strip shaped stator cores and end insulators. The end insulators are injection molded with the strip shaped stator cores, as a whole. A wire duct is arranged on top of a yoke of each strip shaped stator core and at the bottom of each end insulator. Two ends inside the wire duct are projected with bosses. Coil windings wind around the bosses and pass through the wire duct. The stator structure is simple and easy to mass produce. It can make full use of the slot filling ratio of the strip shaped stator. The invention solves the puncture problem. | 10-04-2012 |
20120256499 | Brushless Electric Motor - The invention relates to a brushless electric motor—preferably for a vehicle fan—having an armature which is supported on both sides in a housing, wherein the housing consists substantially of a plastic-containing material and is provided with a preferably substantially tapered casing section as well as two cover sections onto or into both cover sections one bearing each is formed for the armature shaft, and said two cover sections being connected to each other via the casing section and being supported by each other, as well as a stator assembly which extends between the housing casing and the armature wherein the housing is further provided with at least one molded body made of a plastic-containing material for receiving the stator assembly while at the same time determining the axial and radial position, said molded bodies, in turn, being clamped between the cover sections and the casing section in a radial and axial direction, and in this way reinforcing the housing. | 10-11-2012 |
20120256500 | ELECTRIC MOTOR - An electric motor, having a stator, on which a coil for generating a commutated magnetic rotating field, and a rotor having a permanent magnet element. The rotor is mounted rotatably on an axis. A force acts between the commutated magnetic rotating field and the magnetic field of the permanent magnet element to rotate the rotor about the axis. To provide an electric motor in which the permanent magnet element is fastened on the rotor in a cost-effective and long-term stable manner. The torque generated by the electric motor should be as large as possible, the permanent magnet element protrudes in an axial extension thereof beyond the stator. The part of the permanent magnetic element that protrudes beyond the stator is covered by an overmolding made of a plastic material, said overmolding fixes the permanent magnet element in the position thereof on the rotor. | 10-11-2012 |
20120267967 | Environmentally Protected Housingless Generator/Motor - A stator arrangement particularly suitable for use in an air-cooled generator or other such electric machine includes a stator with an outer stator surface, an opening therein defining an inner stator surface, and longitudinally opposed stator end surfaces. Conductive coils are supported by the stator, and include end turns overlying the longitudinally opposed stator end surfaces. In order to block out environmental contaminants and prevent conductive coil shorting, protective barriers are mounted over the end turns and secured to the stator. | 10-25-2012 |
20120274156 | ELECTRIC MACHINE MODULE INSULATION SYSTEM AND METHOD - Embodiments of the invention provide an electric machine module including a housing. The housing can include a machine cavity. In some embodiments, an electric machine can be at least partially positioned within the machine cavity and can include a stator assembly. The stator assembly includes a stator core with slots, a weld end, and an insertion end. In some embodiments, conductors can be positioned in the slots so that portions of the conductors extend from the weld end and the insertion end. An insulation member including recesses can be coupled to at least a portion of the conductors that extend from the weld end of the stator assembly. | 11-01-2012 |
20120274157 | MOTOR AND ELECTRIC DEVICE INCLUDING THE SAME - A motor includes a stator having a stator iron core wound with stator windings, a rotor rotatably mounted on a shaft, a bearing for supporting the shaft, and a conductive bracket for fixing the bearing. The rotor is formed of a rotary body that holds a permanent magnet and the shaft that extends through the rotary body at center and joined to the rotary body. An electrostatic capacity between the shaft and an outermost wall of the rotary body is set smaller than an electrostatic capacity between an inner ring and an outer ring of the bearing during rotation of the bearing. | 11-01-2012 |
20120286593 | STATOR AND MOTOR - A stator is compatible with a variety of wiring configurations and possesses excellent versatility, while also preventing an increase in the size of a busbar unit. The stator includes a plurality of stator segments joined together to assume a cylindrical shape. Each stator segment includes a core segment including a core back portion and a tooth portion; a coil including a pair of coil wire terminals; an insulating layer arranged between the coil and the tooth portion; and a resin layer arranged to have the entire coil except for the coil wire terminals embedded therein. The resin layers of the stator segments include a supporting structure defined therein to allow a wiring member to be connected with any of the coil wire terminals to be attached to and removed from the stator. | 11-15-2012 |
20120293024 | STATOR SEGMENT AND MOTOR - A stator segment arranged to define a portion of an annular stator includes a core segment including a core back portion arranged to extend in a circumferential direction of the stator, and a tooth portion arranged to extend from the core back portion in a radial direction of the stator; a coil wound around the tooth portion and including a pair of coil wire terminals; an insulating layer arranged between the coil and the tooth portion; and a resin layer arranged to seal the entire coil except for the pair of coil wire terminals. Circumferential end walls of the resin layer are arranged circumferentially inward of circumferential end walls of the core back portion. | 11-22-2012 |
20120299400 | STATOR FOR AN ELECTRIC MOTOR - The invention relates to a stator for an electric motor having a base body composed of stator laminates which are axially in layers with respect to a motor axis and having a number of frame-like coil formers which are fitted with stator windings, with the coil cross-sectional surfaces of said frame-like coil formers essentially being directed at the motor axis. It is proposed that in order to fit them, the coil formers can first of all be placed obliquely with respect to a final position on coil former holders of the base body and can then be aligned in the final position, and in that the arrangement is designed such that the alignment involves axial bracing of the stator laminates. | 11-29-2012 |
20120299401 | MOTOR/GENERATOR STRUCTURE - A radial gap motor/generator that may be air or liquid cooled. The motor/generator has a stator in radially spaced relation to at least one thin annular induction structure. The motor/generator has at least two spaced apart annular rings each having an inner surface and outer surface, the annular rings having a permanent magnet structure embedded between the inner surface and outer surface of the annular rings. The motor/generator has at least two spaced apart radial gaps, the first gap between the first annular ring and the induction structure and the second gap between the second annular ring and the induction structure, the stator being disposed between the gaps. The motor/generator may include multiple gaps and multiple annular induction structures to increase the overall power density of the system. | 11-29-2012 |
20120313460 | Electric Machine Having a Power Connection Unit - An electric machine has a stator which carries a polyphase coil winding, wherein coil ends are connected in a predetermined manner to a plurality of electric connection conductors. The electric machine comprises a power connection unit having a plurality of terminal conductors which are constructed separate from the connection conductors and which by a first end portion are bondingly connected or connectable to the connection conductors and by a second end portion are connected or connectable to the electrical energy source. The power connection unit is constructed as a plastic composite element, in which the terminal conductors are embedded at least over a portion of their length in a plastic shell so as to be spaced apart from one another, and wherein first end portions of the terminal conductors project out of the plastic shell. | 12-13-2012 |
20120313461 | ELECTROMECHANICAL DEVICE, ROBOT, MOVABLE BODY, AND METHOD OF MANUFACTURING ELECTROMECHANICAL DEVICE - An electromechanical device includes: a center shaft; a rotor having a rotor magnet disposed around an outer periphery of the center shaft; and a stator disposed on an outer periphery of the rotor, wherein the center shaft is formed of a carbon-fiber-reinforced plastic, and when projection is performed in a radial direction from the center shaft toward the rotor magnet, an angle between a direction of carbon fiber in the carbon-fiber-reinforced plastic and a direction of the center shaft is 45°. | 12-13-2012 |
20120313462 | STATOR FOR AN EC-MOTOR AND EC-MOTOR WITH SUCH A STATOR - A stator for a brushless, electronically commutated electric motor having a stator core wound with stator windings and control electronics for controlling the stator windings. The stator core together with the stator windings are enclosed in a molded encapsulation made of a plastic material of a defined thermal conductivity (λSt). The temperature sensor is arranged on the outside at the encapsulation, and the control electronics are designed such that they calculate the temperature in the region of the stator windings on the basis of the temperature detected by the temperature sensor taking into account a specific stator temperature profile stored in a memory. Furthermore, the invention relates to a brushless, electronically commutated electric motor having a stator as described above. | 12-13-2012 |
20120313463 | ROTOR OR STATOR EMBEDMENT - A rotor for a motor or generator is produced by placing separated magnets around the diameter of the potential rotor, placing separated segments of magnetic backing material behind the magnets, and embedding the whole in molding material in a mold in such a way that the segments thrust outwards against the magnets and the magnets thrust outwards against the mold during placement of the molding material. | 12-13-2012 |
20120319507 | STATOR - Disclosed is a stator capable of reducing stress generated in the resin mold of the stator. A stator is provided with a coil formed by coiling a flat conductor, a split stator core provided with a teeth unit for inserting the coil, and a resin mold, which has resin covering the coil ends of the coil inserted into the split stator core. In the stator, an insulator is formed between the split stator core and the coil by way of insert molding, and the resin mold has a cavity, formed in the radial direction of the stator, in between the coil and the end face of the split stator core. | 12-20-2012 |
20120326538 | MOLDED MOTOR - A molded motor includes a stator, a resin casing, a rotor, a pair of bearings, a pair of bearing retainers, a resin bracket cover, and a control board. The rotor includes a shaft. The bearings are arranged to rotatably support the shaft. The bearing retainers are made of an elastic electrically insulating body. The bearing retainers are arranged to cover the bearings at radial outer sides of the bearings and to hold the bearings in place. The bracket cover is arranged to cover the open side of the casing. One of the bearings is attached to the bracket cover through one of the bearing retainers. The other bearing is attached to a bottom wall portion of the casing through the other bearing retainer. | 12-27-2012 |
20130002058 | Low-Cost Low-Cog PM Machine - Due largely to their high torque-to-current and torque-to-volume ratios, permanent magnet (PM) motors and generators are increasingly being used in a wide range of high performance applications, such as industrial drives, robotics, computer peripherals, and automotive applications. The present invention utilizes stator modularity to enable cost efficiency by significantly decreasing stator core manufacturing costs, and coil forming and fixturing costs in several ways. Minimizing costs extend to a novel, lightweight, support structure that does not require the usual encasement structure. The approach presents a challenge to mitigating cogging torque via popular methods; therefore a novel anti-cogging approach was developed that is a natural outgrowth of the modular layout instead of being negatively impacted by. The result is a low cost PM machine design and method with low cogging torque. | 01-03-2013 |
20130002059 | SWITCHED RELUCTANCE MOTOR - Disclosed herein is a switched reluctance motor including: a rotor formed with a plurality of salient poles; a rotor core having the rotor coupled thereto; and a stopper formed integrally with the rotor core by an insert special molding method. | 01-03-2013 |
20130002060 | STATOR - The stator of an electric motor includes a stator lamination bundle which is provided with windings which pass through this and which in the regions projecting beyond the stator lamination bundle form end-windings. An end-winding shielding which is electrically conductively connected to the stator lamination bundle is provided. This shielding is formed by segmented and distanced shielding sections which in each case shield at least one end-winding completely or partly. | 01-03-2013 |
20130009493 | Cooling System and Method for an Electronic Machine - Embodiments of the invention provide an electric machine module including an electric machine which can include a stator assembly. The stator assembly can include stator end turns. Some embodiments can provide a housing at least partially enclosing the electric machine and the housing can at least partially define a machine cavity. Further, at least one baffle can be coupled to the housing at a region near the stator end turns, so that the at least one baffle surrounds a portion of a perimeter of the stator end turns. | 01-10-2013 |
20130009494 | MOTOR AND METHOD OF MANUFACTURING MOTOR - A rotating portion of a motor includes a rotor holder including a cylindrical portion arranged to be coaxial or substantially coaxial with a central axis, a plurality of magnets arranged in a circumferential direction on an inner circumferential surface of the cylindrical portion, and a resin portion arranged on a surface of the rotor holder. The resin portion includes a plurality of ribs arranged at regular or substantially regular intervals in the circumferential direction along the inner circumferential surface of the cylindrical portion, and an outer tubular portion arranged to cover an outer circumferential surface of the cylindrical portion. Each rib and the outer tubular portion are arranged to be defined by a single monolithic member such that each rib and the outer tubular portion are continuous with each other. Each magnet is preferably arranged between a separate pair of adjacent ones of the ribs. | 01-10-2013 |
20130009495 | STATOR STRUCTURE AND STATOR MANUFACTURING METHOD - A stator structure and a stator manufacturing method which are configured so that the stress occurring in resin-molded sections or insulators of the stator can be reduced. The structure of the stator is provided with coils formed by winding conductors, and also with stator cores provided with teeth to which the coils are mounted through the insulators. The coils mounted to the insulators are resin-molded and integrated with the insulators. Spaces which continue in the radial direction of the stator cores are formed between the insulators and end surface of the stator cores in the axial direction thereof. The insulators and the side surfaces of the teeth of the stator cores are adhered or welded (fusion bonded) to each other. | 01-10-2013 |
20130020885 | Encapsulated Stator - An encapsulated stator includes a driving module coupled to a shaft tube. The driving module includes a silicon steel plate unit. A coil unit is wound around the silicon steel plate unit. A jacket is mounted to an outer periphery of the silicon steel plate unit of the driving module. The jacket includes an inner face and an outer face opposite to the inner face. The inner face of the jacket faces the driving module. An encapsulant is bonded to the driving module, the jacket, and the shaft tube. The encapsulant encapsulates the driving module. The encapsulant partially encapsulates the outer face of the jacket. | 01-24-2013 |
20130020886 | STARTER MOTOR - A starter motor for an engine includes a motor casing made of electrically conductive material and an end bracket fixed to one end of the motor casing. The end bracket comprises a base with brush cages integrally formed therewith, brushes mounted in the brush cages and a conductor electrically connected to the brushes and motor casing. The base is a single piece made of electrically insulating material and coaxial mounting holes are formed in the base and motor casing for fasteners to fix the starter motor to a housing of the engine. | 01-24-2013 |
20130026861 | ELECTROMECHANICAL DEVICE, AND MOVABLE BODY AND ROBOT USING ELECTROMECHANICAL DEVICE - An electromechanical device includes a rotor having a magnetic back yoke with a cylindrical shape, and at least one rotor magnet arranged along an outer periphery of the magnetic back yoke in a cylindrical manner, a stator having at least one air-core magnetic coil arranged along an outer periphery of the rotor in a cylindrical manner, and a coil back yoke with a cylindrical shape disposed on an outer periphery of the magnetic coil arranged in a cylindrical manner, and a casing adapted to cover the stator and the rotor, wherein at least a part of the casing is formed of carbon fiber reinforced plastic. | 01-31-2013 |
20130026862 | Rotor - A rotor for an electric motor, that includes a main body on which a support surface is formed, to which a permanent magnet element is attached. The main body is partially surrounded by a joining sleeve having chamber walls. The chamber walls together with the support surfaces form a chamber in which the permanent magnet element is arranged. The joining sleeve fixes the position of the permanent magnet element in a radial direction on the main body and a locking element is molded onto the main body. The locking element closes the chamber fixing the position of the permanent magnet element in the axial direction on the main body. | 01-31-2013 |
20130033132 | ELECTRIC DEVICE STATOR AND METHODS FOR WINDING - An end cap mounted on the stator clement is provided with the same cut-out as arranged on the stator segment so that both parts can be secured on a retainer system for winding processing. The end cap are arranged to retain insulating materials. | 02-07-2013 |
20130038146 | STATOR FOR AN ELECTRIC MOTOR - A stator for an electric motor, in particular for an external rotor motor, has a basic body ( | 02-14-2013 |
20130043742 | MOTOR - The present invention relates to a motor including: a housing formed in such a manner as to locate a stator assembly inside a mold and to perform an insert injection molding, the housing having a hollow portion formed at the inside thereof and power terminal pins exposed above the hollow portion; a printed circuit board adapted to mount an integrated circuit device thereon and having a shaft insertion hole formed at the center thereof and power terminal pin holes formed at the corresponding positions to the power terminal pins; and an end cover adapted to be coupled to the housing in such a. manner as to be located on the top of the printed circuit board and having a motor shaft coupling portion formed at the center thereof. | 02-21-2013 |
20130043743 | Stator of Motor - Disclosed is a stator of an EPS motor, the stator including a stator core including a plurality of teeth protrusively formed toward a center of an inner circumferential surface, a plurality of coils wound on the teeth at a predetermined counts, an insulator coupled to an upper surface and a bottom surface of the stator core to insulate the coil from the stator core, and an insulation tube situated nearest to a coil wound on an adjacent stator core and inserted into a coil wound on an outmost side of the teeth. | 02-21-2013 |
20130049493 | ELECTRIC MOTOR - An electric motor has a wound stator and a permanent magnet rotor. The rotor includes a shaft, a hub fixed on the shaft, a plurality of rotor core segments and magnets fixed around the hub. The rotor core segment includes at least two rotor blocks inwardly extending from the innermost portion thereof. The hub includes a plurality of hub blocks equidistantly and outwardly extending from the outer surface thereof. The rotor blocks of each rotor core segment engage with at least one hub block to fix the rotor core segment to the hub. The number of rotor blocks is greater than the number of hub blocks. | 02-28-2013 |
20130057089 | ELECTRIC MOTOR - An electric motor has a stator, a rotor and brush gear. The rotor includes a shaft, a rotor core fixed to the shaft, a commutator fixed to the shaft, and rotor windings wound on the rotor core and electrically connected to the commutator. The brush gear includes at least two arcuate brushes for making sliding contact with the commutator. The commutator and brush gear are disposed within a space formed in the rotor core to minimize the axial length of the motor. | 03-07-2013 |
20130057090 | METHOD OF FORMING A POWER TOOL - An electric motor for a power tool includes a stator and an armature disposed in the stator. The armature includes a lamination stack having slots therein; an armature shaft extending coaxially through the lamination stack; a plurality of magnet wires wound in the slots of the lamination stack; a commutator disposed on the armature shaft to which ends of the magnet wires are electrically coupled; and thermally conductive plastic at least partially encasing the magnet wires, the thermally conductive plastic having a base polymer that is a blend of at least two polymers. | 03-07-2013 |
20130062972 | THREE-PHASE ROTARY ELECTRICAL MACHINE AND MANUFACTURING METHOD THEREOF - A three-phase rotary electrical machine including a stator including a stator core including split cores, a rotor, a bobbin attached to each of the split cores, a winding being wound around each split core to which the bobbin is attached, and a bobbin unit including three of the bobbins which are arranged in a circumferential direction of a rotation axis as one unit, wherein the bobbin positioned at a center of the bobbin unit are formed in a bendable manner integrally with the bobbins positioned adjoining to the bobbin positioned at the center, the bobbin unit is sealed with the bobbin unit positioned adjoining thereto, and a cooling passage extending in the axial direction is provided at each clearance between the windings for three phases. | 03-14-2013 |
20130062973 | STATOR MANUFACTURING METHOD AND STATOR - In a stator manufacturing method to manufacture a stator in which divided-core assemblies are arranged in a cylindrical shape, each of which includes a divided-core member having a teeth portion on which a coil is wound. In this method, the divided-core assemblies are inserted in the cylindrical shape into a fixed mold, resin sheets containing glass fibers or carbon fibers are disposed on coil-end portions of the cylindrically-arranged divided-core assemblies, and a slide part of a movable mold applies pressure to and molds the resin sheets, thereby combining the divided core assemblies into a single unit. The movable mold is operated to position the divided-core assemblies in place by a cylindrical part and then apply pressure to and mold the resin sheets by the slide part. | 03-14-2013 |
20130076163 | ROTOR HAVING SHAFT SLIP INHIBITION STRUCTURE AND MOTOR HAVING THE SAME - A motor is disclosed, the motor including a stator core formed with a cylindrical space at an inner surface and formed at an inner circumferential surface with a plurality of teeth protruding toward a center, a cylindrical rotor rotatably mounted at the space and formed with a plurality of pockets for inserting a permanent magnet, a rotation shaft coupled to the center of the rotor and receiving a rotation force generated by interaction between the stator core and the rotor, a nut member connecting the rotor to the rotation shaft by press-fitting the rotor at a periphery to an axial direction of the rotation shaft and press-fitting the rotation shaft at an inner circumferential surface to the axial direction of the rotation shaft, and a key unit inhibiting a slip between the rotor and the nut member. | 03-28-2013 |
20130093267 | DRIVE UNIT FOR A WINDSCREEN WIPER DEVICE IN A VEHICLE AND HOUSING FOR A DRIVE UNIT - The invention relates to a drive unit ( | 04-18-2013 |
20130099604 | Stator Core For Motor and Manufacturing Method Thereof - Disclosed stator core for motor is comprising: more than one stator core body; a fixing unit, which is arranged at both ends of the stator core body and fixes the stator core body to be a cylindrical shape; a first insulator, which is integrally formed by mold in order to wrap a part of the stator core body and a side surface of plural teeth simultaneously; and a second insulator, which is arranged to have a form corresponding to the first insulator, and which is integrally formed by mold in order to wrap a part of the stator core body and a side surface of plural teeth simultaneously through the assembly with the first insulator, wherein the first simulator and the second simulator are separated from each other by the section wrapping the teeth during the bending process of the stator core body. | 04-25-2013 |
20130099605 | BOBBIN WITH TERMINAL AND MOTOR - A bobbin with a terminal may include a winding part having a tube shape around which a conducting wire is wound, a terminal block which is formed on one end side in an axial direction of the winding part, and a plurality of terminals which is protruded from the terminal block in a direction substantially perpendicular to the axial direction of the winding part. A tip end of the terminal is formed with an inclined face which is inclined with respect to the axial direction of the winding part, and the inclined face is inclined so that the conducting wire abutted with the tip end of the terminal is slid down only toward the winding part when the conducting wire is to be wound around the winding part. The bobbin with a terminal may be utilized in a motor provided with a drive coil which is structured of the conducting wire. | 04-25-2013 |
20130099606 | STATOR AND ROTATING ELECTRICAL MACHINE - A stator includes a core body provided so as to contact a substantially cylindrical peripheral-wall inner surface of a frame and having a stator coil wound thereupon, and a mold portion in which a coil end of the stator coil is molded out of resin. A gap is provided between the peripheral-wall inner surface and the mold portion. | 04-25-2013 |
20130106207 | PERMANENT MAGNET ROTORS AND METHODS OF ASSEMBLING THE SAME | 05-02-2013 |
20130106208 | ROTOR AND MOTOR | 05-02-2013 |
20130140920 | STATOR ASSEMBLY STRUCTURE FOR AXIAL FLUX ELECTRIC MACHINE - A stator assembly structure for an axial flux electric machine is designed. The back iron for each silicon steel disk stator is formed into a specific structure with tooth-like protrusions for allowing the same to be integrated with the disk-type stator seat, while the disk-type stator seat is made of a material suitable for casting or mold forming. A coil is mounted on the disk stator, and a stator assembly is achieved by integrating the stator, the coil and the stator seat. The stator and the disk-type stator seat of the stator assembly are manufactured by using a one-piece cast or one-piece mold forming method so as to enable the contact surfaces of the stator and the stator seat to engage with each other even more tightly, and consequently enable the heat generated from the coil to be transmitted rapidly from the disk stator to the disk-type stator seat. | 06-06-2013 |
20130162061 | SWITCHED RELUCTANCE MOTOR - Disclosed herein is a switched reluctance motor including: a rotor part including a rotor core having a shaft inserted thereinto and a plurality of rotor poles formed to be protruded from the rotor core; a stator part formed by coupling stator cores each positioned at outer sides of the rotor poles while facing the rotor poles so that the rotor part rotates therein and independently manufactured by insert injection molding to each other; and a magnet coupled between the stator cores. | 06-27-2013 |
20130162062 | STATOR ASSEMBLY HAVING END CAP WITH POLARITY KEYING FEATURE FOR A POWER TOOL - A power tool is provided, including a housing, a permanent magnet electric motor in the housing, and an output member coupled to the electric motor. The electric motor includes a rotor and a stator. The stator includes a lamination stack of identically-shaped laminations with a North pole and a South pole. The stator also includes an end cap arranged at one end of the lamination stack. The end cap includes a polarity keying feature in an outer surface therein at a predetermined position with respect to one of the North pole or the South pole to identify a polarity of the stator. | 06-27-2013 |
20130162063 | FIXING RESIN COMPOSITION FOR USE IN ROTOR - The fixing resin composition for use in a rotor includes a thermosetting resin (A) containing an epoxy resin, a curing agent (B), and an inorganic filler (C), wherein the content of the inorganic filler (C) is equal to or more than 50% by mass, based on 100% by mass of the total content of the fixing resin composition. | 06-27-2013 |
20130169073 | ELECTRIC VEHICLE DRIVING SYSTEM - A side cover | 07-04-2013 |
20130181550 | ELECTRIC MOTOR - A housing assembly for an electric motor having a rotor shaft rotatable about an axis includes a housing cover and a housing case. The housing cover defines a first bearing seat for rotatably supporting a first portion of the rotor shaft. The housing case defines a second bearing seat for rotatably supporting a second portion of the rotor shaft. At least one of the housing cover and the housing case includes a plurality of mounting lugs substantially circumferentially evenly spaced about the shaft axis for mounting the electric motor to a surface. | 07-18-2013 |
20130187484 | MOTOR STATOR WITH HEAT DISSIPATION STRUCTURE - A motor stator with heat dissipation structure for fan includes a silicon steel plate assembly having a plurality of magnetic-pole columns, on each of which at least one winding is wound, and a space is defined between any two adjacent magnetic-pole columns; a covering being a heat-conducting plastic material filled in the spaces while covering the silicon steel plate assembly and the windings; and a plurality of heat pipes being extended into or through the covering filled in the spaces, so that heat produced by the silicon steel plate assembly and the windings during operation thereof can be transferred to the covering, and the heat pipes can absorb the heat from the covering and dissipate the absorbed heat into ambient air. Therefore, the silicon steel plate assembly and the windings can have lowered temperature and the cooling fan can have upgraded heat dissipation characteristic. | 07-25-2013 |
20130187485 | ROTARING ELECTRICAL MACHINE - In a rotating electrical machine of radial-gap type, a radial core, having number of winding slots of “m”, is constructed as an integral compacting type by compacted powder or as a split compacting type with compacted powder. The radial core has a thickness in an axial direction of winding thereof so as to become thinner toward outward from a central portion thereof, in which the “m” is integer number in a range of 4 to 12. | 07-25-2013 |
20130187486 | MOTOR AND ROTOR THEREOF - A rotor having an improved structure capable of achieving an enhancement in durability and a motor having the rotor are disclosed. The rotor is configured to co-operate with a stator in an electromagnetic manner such that the rotor rotates. The rotor includes a sleeve having a shaft hole, through which the motor shaft extends, rotor cores spaced apart from one another in a circumferential direction of the rotor, and at least one of permanent magnets disposed between adjacent ones of the rotor cores such that the permanent magnets are arranged in a radial manner about the sleeve. First and second cover plates are disposed at opposite sides of the permanent magnets in an axial direction. The first and second cover plates have plate holes respectively corresponding to the through holes of the rotor cores. The rotor cores and the first and second cover plates are coupled by fastening members. | 07-25-2013 |
20130187487 | BRUSHLESS MOTOR - A brushless motor may comprise a rotor comprising a shaft, a back yoke fixed on the shaft, a permanent magnet disposed at an outer circumference of the back yoke and first and second resin portions. The first resin portion may be formed at one ends of the back yoke and the permanent magnet and the second resin portion may be formed at other ends. The first and second resin portions may be fixed the back yoke and the permanent magnet. A communication hole communicating one end side and another end side in the shaft axis direction may be formed through the back yoke or between the shaft and the back yoke. A third resin portion connecting with the first and the second resin portions may be formed within the communication hole. The first, second and third resin portions may be formed integrally. | 07-25-2013 |
20130207488 | ROTATING ELECTRICAL MACHINE, IN PARTICULAR FOR A MOTOR VEHICLE STARTER - A rotating electric machine comprising a rotor ( | 08-15-2013 |
20130214620 | ROTOR OF ELECTRIC MOTOR HAVING STRUCTURE FOR ATTACHING MAGNET SECURELY TO OUTER CIRCUMFERENTIAL SURFACE OF ROTOR CORE AND MANUFACTURING METHOD THEREOF - In accordance with the present invention, a rotor of an electric motor including a rotor core, a plurality of magnets spaced apart from each other on an outer circumferential surface of the rotor core, and a cylindrical protective pipe surrounding the magnets is provided. The protective pipe has an inner diameter smaller than a diameter of a circumscribed circle passing through tops of outer surfaces of the magnets. A space defined by an inner surface of the protective pipe, the outer surfaces of the magnets and the outer surface of the rotor core is filled with resin, and the protective pipe is held so as to have a diameter larger than that of the circumscribed circle, due to injection pressure of the resin. | 08-22-2013 |
20130214621 | MOTOR - A motor may include a motor main body in which a rotor may be accommodated on an inner side of a motor case, and an antireflection layer which may be matted and provided with a light-absorbing property and which may cover at least a part of an outer face of the motor case. | 08-22-2013 |
20130214622 | Motor Structure - A motor structure includes a housing having a shaft tube receiving a shaft retaining assembly. The shaft tube includes a positioning member on an outer periphery thereof. A rotor includes a shaft rotatably extending through the bearing. A stator is mounted around the shaft tube, couples with the positioning member, and includes a bobbin having an abutting portion pressing a top face of the shaft retaining assembly by a free end thereof. Specifically, the positioning member is distant from the top face by a first distance in an axial direction of the shaft tube, the abutting portion is made of elastic material, the positioning member is distant from the free end by a second distance in an axial direction of the assembling hole is defined, and the second distance is smaller than the first distance when the stator is separate from the shaft tube. | 08-22-2013 |
20130221769 | Can of a Drive Motor for a Pump Assembly - A can of a drive motor is provided for a pump assembly, wherein the can ( | 08-29-2013 |
20130221770 | ARMATURE AND MOTOR INCLUDING ARMATURE - An armature includes an insulator mounted on a tooth portion around which a conducting wire is wound. A pair of a first member and a second member, which are combined so as to abut each other, is provided. The first member includes a first end wall which covers an upper side end in the axial direction of the tooth portion and a pair of first side walls which partially cover both side portions of the tooth portion. A first overlap portion is provided on a tip portion of the first side wall. A plurality of ribs extending so as to be parallel or substantially parallel to the winding direction of the conducting wire is disposed on an outer surface of the first overlap portion. | 08-29-2013 |
20130229071 | ELECTRIC MOTOR - An electric motor has a stator, a shaft and a rotor. The stator has an annular yoke portion; a plurality of stator teeth inwardly extending from the yoke portion; stator windings wound on the stator teeth; and a molded member made of heat conductive plastic material. The molded member has a plurality of fins arranged on an outer wall of the yoke portion, a covering portion disposed in the spaces between adjacent stator teeth, and two connecting portions respectively located at axially outer end faces of the yoke portion and connected to the covering portion and the fins. The covering portion covers an inner wall of the yoke portion and the stator windings, and connects to the fins via the connecting portions. Heat generated by the stator windings is transmitted to the fins via the covering portion and the connecting portions, where it is dissipated. | 09-05-2013 |
20130241323 | STATOR ASSEMBLY SUPPORT - Provided herein is an apparatus, having a cylindrical structure extending from a base; a stator assembly having a stator ring and a plurality of stator teeth extending from an outer diameter of the stator ring; and a stator assembly support having a supporting means for supporting at least one of the stator ring or the plurality of stator teeth, wherein the stator assembly support is configured to dampen mechanical vibrations in the base. | 09-19-2013 |
20130249327 | STATOR FOR AN ELECTRIC MOTOR OF A WASHING MACHINE AND METHOD OF MANUFACTURING THE SAME - A stator for an electric motor that includes a plurality of stacked laminations and a polymeric shell coupled to the plurality of laminations. Each lamination includes an annular plate having a plurality of notches defined therein. Each notch has an end positioned between the side walls of the annular plate. A plurality of teeth extend from one side wall of the annular plate. Each lamination includes a first slot defined at the first end of each notch and a second slot spaced apart from the first slot, the first slots of the laminations are aligned to define a first plurality of passageways, the second slots of the laminations are aligned to define a second plurality of passageways, and the polymeric shell includes a plurality of support beams that extend through the first plurality of passageways and the second plurality of passageways. | 09-26-2013 |
20130249328 | STATOR FOR AN ELECTRIC MOTOR INCLUDING SEPARATELY FORMED END PIECES AND ASSOCIATED METHOD - A stator for an electric motor includes a stator core including a yoke and a plurality of arms extending radially from the yoke. The stator includes an end piece secured to a radial end of each arm of the stator core. The stator core has a length defined along a longitudinal axis of the stator, and each end piece has a length defined along the longitudinal axis of the stator. The length of each end piece is greater than the length of the stator core. | 09-26-2013 |
20130249329 | MOLDED MOTOR - A molded motor includes an annular yoke part, a stator including a stator core having, a plurality of teeth parts extending from an inner peripheral surface of the annular yoke part toward a center thereof, an insulator covering the stator core, an outer shell formed around the stator core and the insulator and made of resin, a rotor coaxially disposed at the center of the stator, a connecting wire guide provided on the insulator to stand in an axial direction of the stator core at a position corresponding to an engagement recess of an outer peripheral part of the outer shell, and a connecting wire guided by the connecting wire guide. A crimped part of a bracket adapted to be attached to an end face of the stator is engaged with the engagement recess when a part of a side end face of the bracket is crimped and secured. | 09-26-2013 |
20130249330 | STATOR FOR AN ELECTRICAL MACHINE - A stator includes a plurality of stator elements, each stator element comprising a c-shaped core having two poles. Each pole of each stator element is secured to a pole of an adjacent stator element by a bridge formed of a non-magnetic material moulded onto the poles. | 09-26-2013 |
20130257183 | STATOR PORTION OF MOLDED MOTOR, AND MOLDED MOTOR INCLUDING THE SAME - A stator portion of a molded motor includes a plurality of windings, a wiring board, and a resin arranged to cover at least a surface of each winding. The wiring board includes a through hole extending through the wiring board in an axial direction. The through hole is arranged axially opposite to any winding to facilitate discharge of air out of a gap between the wiring board and the winding during a molding process, while the distance between the wiring board and each opposed winding is short in the stator portion of the molded motor. The resin is thus continuously arranged in gaps between the windings and the gap between the wiring board and each opposed winding. | 10-03-2013 |
20130257184 | ROTOR UNIT, ROTATING ELECTRICAL MACHINE, AND METHOD FOR MANUFACTURING ROTOR UNIT - A rotor unit includes a rotor core made of laminated steel sheets that are vertically laminated, and a holder made of resin. The rotor core and the holder are fixed together through insert molding. For this reason, the process of manufacturing the rotor core and the holder is shortened. Additionally, in the outer peripheral surface of the rotor core, a portion of resin that defines the holder is present between the plurality of steel sheets that defines the rotor core. For this reason, the fixing strength of the rotor core and the holder improves. Additionally, since a separation between the rotor core and the holder is prevented, magnets can be easily press-fitted. | 10-03-2013 |
20130257185 | ROTARY ELECTRIC MACHINE - A rotary electric machine according to the present invention is a rotary electric machine including: a heat sink mounted with a power circuit; a housing for containing incorporated components; and a frame for containing a rotor and a stator core; the heat sink, the housing, and the frame being coaxially and integrally configured. In the rotary electric machine, there are included a lead frame connected to a power circuit, and a connector portion connected to the lead frame and being for connecting to the outside; the heat sink is made of metal; and the housing is made of resin. | 10-03-2013 |
20130270930 | DIRECT DRIVE ROTOR WITH METAL COUPLER - A rotor for an outer rotor-type motor is provided. The rotor includes a metallic coupler and a polymeric frame molded over at least part of the metallic coupler. | 10-17-2013 |
20130270931 | ROTARY MACHINE - A rotary machine capable of carrying out efficient cooling without increasing costs or deteriorating performance is provided. A motor | 10-17-2013 |
20130278085 | SPINDLE MOTOR - Provided is a high-speed rotating spindle motor that achieves a smooth circulation of oil without any congestion regions of oil on an oil path taking place in a bearing housing. The spindle motor includes: a rotor; a rotating shaft whose one end is combined with the rotor; a sleeve bearing whose inner circumference rotatably supports the outer circumferential surface of the rotating shaft, and on the outer circumferential surface of which at least one oil circulation recess is provided along the lengthy direction of the sleeve bearing, and that is made of an oil-containing sintered metal; a bearing housing having a first recess accommodating the sleeve bearing and a second recess that supports the other end of the rotating shaft at a central portion of the first recess, and made of a resin; and a number of protrusions that are protrudingly formed at a gap radially spaced apart from each other around the rotating shaft so that a plurality of guide grooves through which oil passes are formed on the bottom of the first recess, and on which the bottom of the sleeve bearing is mounted. | 10-24-2013 |
20130285481 | STATOR OF DRIVE MOTOR FOR ELECTRICALLY OPERATED VALVE - The invention intends to improve a stator which is detachably installed to an outer peripheral portion of a can accommodating a rotor. The stator is integrally formed with a resin mold by arranging a stator assembly ( | 10-31-2013 |
20130285482 | ROTOR OF ELECTRIC MOTOR, MOLD MOTOR, AIR CONDITIONER, AND METHOD OF MANUFACTURING THE MOLD MOTOR - A rotor resin assembly of a rotor of an electric motor includes a rotor magnet including a substantially cylindrical yoke molded from thermoplastic resin containing a soft magnetic material or ferrite and a resin magnet integrally formed in the outer circumference of the yoke, a position detection magnet arranged at one end in the axial direction of the rotor magnet, and a substantially doughnut-like rotor core arranged in the inner circumference of the rotor magnet and formed by laminating a predetermined number of electromagnetic steel plates. The rotor magnet, the position detection magnet, and the rotor core are integrally formed by resin. A shaft is inserted into an inner diameter section of the rotor core, and the rotor resin assembly is caulked by a jig to form a recess in the vicinity of the inner diameter sections of both end faces of the rotor core and assembled to the shaft. | 10-31-2013 |
20130293036 | MOLD MOTOR AND AIR CONDITIONER - A mold motor includes a mold stator, a rotor, and a bracket. The mold stator includes a first bearing housing section formed of thermosetting resin, one bearing of the rotor fitting in one end in an axial direction of the first bearing housing section, an opening section formed at an end on the opposite side of the bearing housing section, and a bracket press-fitting section formed near the opening section and having a diameter larger than a stator inner diameter. The bracket includes a bracket resin section configuring a second bearing housing section in which the other bearing of the rotor fits and a bracket sheet metal section press-fit into the bracket press-fitting section of the mold stator. In the bracket, the bracket resin section and the bracket sheet metal section are integrally molded. | 11-07-2013 |
20130300221 | METHOD OF FORMING A POWER TOOL - An electric motor has a stator in which an armature is disposed. The armature has a shaft. One of the stator or the armature includes a lamination stack having slots in which magnet wires are wound, the magnet wires having a coating of heat activated adhesive. There is further provided plastic molded around the magnet wires with heat of the plastic activating the heat activated adhesive on the magnet wires during molding of the plastic to bond the magnet wires together. | 11-14-2013 |
20130300222 | MOTOR DRIVE DEVICE FOR ELECTRIC POWER STEERING APPARATUS - A motor drive device employed, for example, in an electric power steering apparatus for vehicle, achieves a reduction not only in size but also in vibration and noise at the same time. | 11-14-2013 |
20130300223 | MOLDED STRUCTURE AND MOTOR - A molded structure according to the present invention is formed from a molding resin which includes at least a thermosetting resin, a thermoplastic resin, and an electrically insulating inorganic filler subjected to a surface treatment with a coupling agent, and which contains the coupling agent in an amount 0.5 times to 2 times the amount of the coupling agent necessary to cover the total surface area of the inorganic filler. Thus, the adhesion is improved between the resin and the inorganic filler in the molding resin, and a molded structure can be achieved which has a high thermal conductivity and high dimensional stability. | 11-14-2013 |
20130300224 | MOLD STRUCTURE AND MOTOR - A mold structure according to the present invention is formed from a molding resin including at least a thermosetting resin, an electrically insulating inorganic filler containing at least a metal hydrate, and a dispersant. Thus, it is possible to improve the dispersibility of the inorganic filler in the molding resin, and increase the filling property and fluidity of the inorganic filler. As a result, the molding resin which has a high thermal conductivity and excellent moldability can achieve a mold structure with high radiation performance. | 11-14-2013 |
20130300225 | MOLDED MOTOR - A molded motor of the present invention comprises: a stator having a stator core wound with a winding and molded with a molding resin; a rotor including a rotary body having a ferrite resin magnet which is a permanent magnet, disposed in a circumferential direction and confronting the stator, and a shaft penetrating through an axial center of the rotary body; a pair of bearings supporting the shaft; a pair of electrically-conductive brackets securing the bearings; and conductive pins which is connecting parts that electrically connect the pair of brackets. The rotor is provided with a first dielectric layer between the shaft and an outer peripheral surface of the rotary body, and a second dielectric layer between the shaft and the bearings. | 11-14-2013 |
20130307353 | MAGNET-TYPE POWER GENERATOR AND METHOD OF MANUFACTURING THE SAME - A magnet-type power generator includes a rotor having a bowl-shaped flywheel and plural magnets disposed on an inner circumferential surface of the flywheel so as to be spaced at a predetermined interval, and a stator having plural cores facing the magnets and each having a coil wound therearound. The magnets include a bonded magnet integrally molded with the flywheel. | 11-21-2013 |
20130313921 | Segmented Stator Assembly - A stator has a plurality of segments connected with connectors to define a core for the stator. Each of the segments comprises a plurality of laminations arranged side by side forming a lamination stack with axially opposite sides. The lamination stack has an end cap abutting an axial side of the lamination stack. The end cap has first and second posts extending axially therefrom. At least one of the posts defining a wire path for wire wound around the stack. Each of the connectors comprises a bridge portion. The bridge portion has openings dimensioned to receive the posts in a manner that the connector is removably attachable to the post of the end cap of a segment and the post of the end cap of an adjacent segment. The connector has an insulator portion projecting from the bridge portion. The insulator portion extends between adjacent segments when the connector is removably attached to adjacent segments. | 11-28-2013 |
20130328418 | ELECTRIC MOTOR HAVING A SEGMENTED STATOR - In the case of an electric motor having a rotor and a stator, which has at least one first and one second stator segment ( | 12-12-2013 |
20130328419 | MOUNTING DEVICE FOR DISK IN SPINDLE MOTOR - A spindle motor including a base, a bearing housing supported on the base, a bearing provided within the bearing housing, a rotating shaft rotatably supported by the bearing, a stator including a core fixed to the bearing housing and coils wound around the core, a rotor including a rotor yoke fixed to the rotating shaft, and a first magnet installed on the rotor yoke facing the stator, a turntable positioned on the rotor yoke, rotating together with the rotating shaft, a center guide member coupled to the rotating shaft at an upper side of the turntable, an elastic member disposed between the turntable and the center guide member for elastically supporting the center guide member. | 12-12-2013 |
20130334906 | DRIVE UNIT INTEGRATED ROTATING ELECTRICAL MACHINE - To obtain a drive unit integrated rotating electrical machine that makes it easier to connect power circuits and achieves not only excellent vibration resistance but also excellent heat releasing properties. | 12-19-2013 |
20130342038 | FASTENING DEVICE FOR AN ARMATURE LAMELLA STACK - Fastening device ( | 12-26-2013 |
20140001890 | BRUSHLESS MOTOR FOR ELECTRIC POWER TOOL | 01-02-2014 |
20140015347 | LIQUID COOLED HIGH EFFICIENCY PERMANENT MAGNET MACHINE WITH IN SLOT GLYCOL COOLING - A permanent magnet motor, generator or the like that is liquid cooled using glycol or similar fluid with the means defining cooling passageways disposed directly in the winding slots of the stator between and in engagement with the windings and stator laminations. | 01-16-2014 |
20140015348 | ELECTRIC MOTORS WITH DOUBLE LAYER FORMED COIL LAPPED WINDING - A motor comprises a stator having open slots with a double layer formed coil lapped winding and the method to manufacture thereof. | 01-16-2014 |
20140015349 | INTERLOCKING COIL ISOLATORS FOR RESIN RETENTION IN A SEGMENTED STATOR ASSEMBLY - A stator assembly of an electric machine includes a segmented lamination stack formed of an interconnected series of lamination segment stacks, and a plurality of coil isolators each having a conductor wound thereon, each having a radially outward interlock at each circumferential end thereof, and each having a radially inward interlock at each circumferential end thereof, the coil isolators being serially connected by the interlocks to form a cavity closed down the axial length of the stator assembly, the coil isolators electrically insulating the lamination segments from the conductors. | 01-16-2014 |
20140021808 | ACTUATOR ASSEMBLY HAVING A MOTOR WITH HEAT DISSIPATION - An actuator assembly includes a housing with a motor compartment, a gear compartment, a bulkhead separating the motor compartment from the gear compartment, and an aperture through the bulkhead. The actuator assembly also includes a motor assembly in the motor compartment defining a space radially between the motor assembly and the gear motor compartment. A high thermal conductivity material is disposed within the space to transfer heat from the motor assembly to the housing. The bulkhead includes one of a groove and a rib surrounding the aperture on the side of the bulkhead facing the motor compartment and the motor assembly includes the other of the groove and the rib such that the rib fits within the groove to prevent the high thermal conductivity material from migrating radially inward of the groove and the rib when the high thermal conductivity material is injected into the space. | 01-23-2014 |
20140028119 | ENCAPSULATED ROTOR FOR PERMANENT MAGNET SUBMERSIBLE MOTOR - A rotor for a submersible motor includes a shaft and a hub. The hub is: disposed around the shaft, torsionally connected to the shaft, and made from a magnetically permeable metal or alloy. The rotor further includes permanent magnets disposed around the hub; and a polymer shroud encapsulating the permanent magnets and molded to the hub. | 01-30-2014 |
20140028120 | Actuator For A Flap For Opening And Closing An Air Passage - The invention relates to an actuator for a flap for opening and closing an air passage in an air conditioner, ventilator, and/or heater, comprising a housing ( | 01-30-2014 |
20140035399 | BRUSH DEVICE, ELECTRIC MACHINE - The invention relates to a brush device, in particular for an electric machine, comprising at least one brush holder which has at least two brush boxes for receiving in each case one brush, wherein the brushes are mounted in a displaceable manner in the respective brush box and wherein a helical spring can be braced/is pretensioned in each case between one of the brushes and a stop in the respective brush box, and comprising at least two elastically deformable electrical conductors which are each connected with an end thereof to one of the brushes. | 02-06-2014 |
20140042834 | ROTOR AND MANUFACTURING PROCESS OF ROTOR - A rotor includes a laminated core, a plurality of magnets, and a resin portion. The laminated core includes a plurality of outer core portions arranged in a circumferential direction. The plurality of outer core portions and the plurality of magnets are alternately arranged in the circumferential direction. In addition, the outer core portion includes a through-hole that penetrates in an axial direction. The resin portion includes a columnar portion that is disposed inside the through-hole. Accordingly, the rigidity of the resin portion is enhanced. In addition, the resin portion includes a gate mark portion. At least a portion of the gate mark portion is positioned farther radially inward than the through-hole. | 02-13-2014 |
20140042835 | EQUIPMENT INCLUDING EPITAXIAL CO-CRYSTALLIZED MATERIAL - An electric submersible pump motor can include a housing; and a hermetically sealed cavity defined at least in part by the housing that includes at least one material susceptible to hydrolysis, and a polymeric material that includes epitaxial co-crystals of perfluoroalkoxy (PFA) and polytetrafluoroethylene (PTFE). Various other apparatuses, systems, methods, etc., are also disclosed. | 02-13-2014 |
20140054985 | INTERNALLY EXICTED SYNCHRONOUS MOTOR COMPRISING A PERMANENT MAGNET ROTOR WITH MULTIPLE CORROSION PROTECTION - A module for a rotor of an electric machine, said rotor being excited by means of permanent magnets and rotating in a liquid medium, wherein the module contains a cylindrical, active part having a plurality of circular, magnetically soft laminations which form a laminated stack and have a central opening for receiving a rotor shaft; wherein at least two permanent magnets protected against the liquid medium are arranged in at least two corresponding cutouts in the laminated stack, the cutouts being formed under a cylindrical circumferential surface of the laminated stack. | 02-27-2014 |
20140062226 | SWITCHED RELUCTANCE MOTOR ASSEMBLY - Disclosed herein is a switched reluctance motor assembly including: a shaft forming the center of rotation of a motor; a rotor part rotatably coupled to the shaft; a balancing member including the rotor part and formed so as to enclose the shaft; a sensor magnet coupled to a lower end portion of the balancing member in an axial direction; and a printed circuit board having a hall sensor attached thereto so as to face the sensor magnet at a lower portion of the sensor magnet in the axial direction. According to the present invention, the coupling precision of the sensor magnet for sensing the position of the rotor part forming the rotor of the switched reluctance motor assembly may be improved. | 03-06-2014 |
20140084711 | ROTATING ELECTRICAL MACHINE FOR VEHICLE - In a rotating electrical machine for vehicle, at least one of a rectifier device, a voltage regulator, and a brush holder includes an external terminal connection portion provided with an insert terminal inserted into resin and an insert nut inserted into the resin and superimposed on the insert terminal. The insert terminal includes a contact portion on a surface on a side opposing the insert nut and the insert terminal and the insert nut are superimposed via the contact portion and inserted into the resin. It thus becomes possible to provide a rotating electrical machine for vehicle provided with constituent components that are free from an inconvenience caused by a variance over time. | 03-27-2014 |
20140084712 | TRANSVERSE FLUX ELECTRICAL MACHINE STATOR COMPONENTS - A phase module of a transverse flux electrical machine (TFEM) includes a pair of halves adapted to receive therein a plurality of cores and a coil therein. The cores are discretely located in the phase with radially angularly distributed core-receiving spaces. The plurality of cores and the coil are secured in the halves with resin. The proximal radial portion of the phase module is bored to define the interior diameter of the phase module. A method of assembling a phase module and a kit thereof are encompassed by the present application. | 03-27-2014 |
20140097710 | Spacer for Stabilizing and Insulating an End Winding - A spacer for mechanically stabilizing and electrically insulating an end winding in an electric motor includes an elastic nose having a free end. A planar, electrically insulating sheet is integrally formed at an end of the nose located opposite the free end. Such spacers are used in an electric motor having an iron core, whose teeth are surrounded by coils whose end windings laterally project from the iron core. The spacers are press-fitted inside openings formed by the end windings and the teeth, so that the end windings are covered by the sheet of the press-fitted spacer in the direction of an air gap of the electric motor in each case. | 04-10-2014 |
20140111036 | AC GENERATOR - Provided is a vehicle AC generator which enables the common use of components and the use of the same molding die for molded bodies to enable a significant reduction in fabrication cost. The vehicle AC generator includes a molded body ( | 04-24-2014 |
20140111037 | ROTARY ELECTRIC MACHINE, STATOR UNIT AND WIRE CONNECTION SUBSTRATE - A rotary electric machine includes: a rotating shaft having an axis extending in an axial direction; a rotor fixed to the rotating shaft; a stator provided with a plurality of stator coils; a wire connection part provided at one side of the stator coils in the axial direction, the wire connection part connecting end portions of the stator coils in a specified wire connection pattern; and a resin molded part arranged to cover the wire connection part and the stator coils. The wire connection part includes a plurality of conductive members connected to the end portions of the stator coils and an insulating member arranged to at least partially cover surfaces of the conductive members. The insulating member has projection portions protruding toward the resin molded part existing at the one side of the stator coils in the axial direction. | 04-24-2014 |
20140117789 | ROTOR OF MOTOR WHICH USES MAGNETS | 05-01-2014 |
20140139053 | RING ELEMENT FOR A ROTOR OF AN ELECTRIC MOTOR - A ring element includes a convex, in particular rounded, surface element for arrangement on at least one axial end region of a winding section of an electric motor rotor. The surface element provides a minimum radius curvature for supporting an inner layer of a rotor winding on the winding head. An insulating lamination element for an electric motor rotor onto which a rotor winding is intended to be wound includes the ring element. An electric motor, in particular a universal motor, includes a rotor with a rotor winding having the ring element. An electric machine tool, in particular a handheld electric machine tool such as an angle grinder, a drill, a saw or the like, includes the electric motor. | 05-22-2014 |
20140152127 | STATOR FOR BRUSHLESS EXTERNAL-ROTOR MOTOR AND METHOD OF MANUFACTURING THEREOF - A stator for a brushless external-rotor motor. The stator includes a stator core; a winding; and an end insulator. The stator core includes a yoke part and a tooth part which are separated. The tooth part includes a clamping part. The tooth part is formed by overlapping a plurality of silicon-steel sheets. The end insulator is sleeved on the tooth part. The winding is wound on the end insulator. The yoke part is formed by molding permeability magnetic material and includes a mounting hole in a center. A plurality of lug bosses protrudes at intervals on an outer side of the yoke par. A clamping groove is formed between two connected lug bosses. The clamping part of the tooth part is nested in the clamping groove. | 06-05-2014 |
20140152128 | STATOR OF ROTARY ELECTRIC MACHINE INCLUDING RESTRICTING MEMBER FOR PREVENTING DEFORMATION OF COIL END PORTIONS AND ELECTRIC MOTOR INCLUDING SUCH STATOR - A stator of a rotary electric machine includes a stator core and coils. The stator core is provided with a plurality of slots extending in an axial direction and being spaced apart from one another in a circumferential direction. The coils are wound around through the slots. The coils include coil end portions which protrude outward in the axial direction from an end surface of the stator core. The stator includes a restricting member situated on an inner side of the coil end portions in the radial direction. The restricting member serves to prevent deformation of the coil end portions inward in the radial direction. | 06-05-2014 |
20140159516 | SWITCHED RELUCTANCE MOTOR ASSEMBLY - Disclosed herein is a switched reluctance motor assembly, wherein a lower balancing part, which becomes a target to be cut for balancing, includes a lower balancing part body installed on a lower surface of a rotor part and an encoder protruding on a lower surface of the lower balancing part body. In the present invention, the encoder, which is a portion of a balancing part, becomes a target to be cut, thereby making it possible to more effectively perform balancing even with a smaller amount of cutting as compared with the prior art. | 06-12-2014 |
20140159517 | AXIAL GAP-TYPE POWER GENERATOR - An axial gap-type power generator has: a rotor fixed to a crankshaft of an engine; a stator fixed to a crankcase of the engine and opposing the rotor across a spacing in an axial direction; and a housing to house the rotor and the stator and to fix the stator. The stator is configured by arraying, in a peripheral direction, a plurality of coils C each configured through winding of a winding about a stator core. The housing is formed of a resin-based material. Winding ends of the coils are wired using connector fittings each of which is formed of a metal plate, is held on the housing, and has a clamp into which the winding end is inserted and clamped. | 06-12-2014 |
20140167531 | ROTOR AND ELECTRIC MOTOR - A rotor for an electric motor, in particular for synchronous motors of wet-running pumps, with a rotor core on the periphery of which a number of magnets are arranged, the rotor core and the magnets being surrounded by a plastics material casing. The magnets each have a receiving groove on a peripheral face remote from the rotor core. | 06-19-2014 |
20140175911 | STATOR AND MOTOR HAVING THE SAME - Disclosed herein is a stator including: a plurality of stator cores; a coil wound around each of the plurality of stator cores; and an injection part injection-molded between the plurality of stator cores. | 06-26-2014 |
20140175912 | MOTOR - A BLDC motor for driving a cross flow fan in an air-conditioning application has an external rotor and an internal stator. The stator is a salient pole stator with insulated pole teeth and conductor coils. The inner diameter of the stator supports a single bearing. An electronic PCBA for control of the BLDC motor is optionally attached to the stator, all of which is encapsulated in a thermoset resin. The rotor comprises permanent magnet component(s) and a rotor frame. The rotor frame includes a stub axle that engages with the bearing element and features to provide torsional or rotational compliance between the rotor magnets and the fan. A level of compliance is provided between the bearing element and the stator to allow for angular misalignment between the rotational axis of the fan and the stator. | 06-26-2014 |
20140183983 | PLASTIC-PACKAGE MOTOR - A plastic-package motor, including: a rotating shaft, a rotor assembly, a plastic-package stator, a front end cover, a rear end cover, an injection-molding end plate, and a conducting strip. The rotating shaft and the rotor assembly are installed and connected together. The plastic-package stator is sleeved outside the rotor assembly. The front end cover is injection-molded on the injection-molding end plate at the bottom of the plastic-package stator. The injection-molding end plate is covered outside the front end cover. The rear end cover is installed at the other end of the plastic-package stator, and two ends of the rotating shaft are supported on a bearing of the front end cover and a bearing of the rear end cover, respectively. One end of the conducting strip is electrically connected with the front end cover. | 07-03-2014 |
20140183984 | RESIN-MOLDED ROTATING MACHINE - In a motor that is molded with resin in part or as a whole, thermal expansion caused by temperature rise due to reduction in size and increase in output causes application of stress equal to or greater than fracture stress to the resin, thus generating cracks. | 07-03-2014 |
20140197700 | ROTOR - A rotor includes an axle, a back iron unit, a magnet unit and an adhesive layer. The back iron unit includes annular inner and outer components, and a plurality of plastic components. The inner component is made from a non-metal material and is sleeved on the axle. The outer component is made from a magnetically permeable metal material and surrounds the inner component. The plastic components protrude from an outer surface of the outer component. The magnet unit has a cavity for receiving the back iron unit. The plastic components abut against a cavity-defining surface of the magnet unit that defines the cavity. The adhesive layer is formed in a space between the back iron unit and the magnet unit. | 07-17-2014 |
20140203671 | MOTOR - There are disclosed a motor comprising a stator and a rotor rotary with respect to the stator, the stator comprising a stator core comprising a back yoke and a plurality of teeth projected from the back yoke | 07-24-2014 |
20140210284 | MOTOR, METHOD FOR MANUFACTURING MAGNETIC PLATE, AND METHOD FOR MANUFACTURING STATOR - A motor includes a rotation shaft, a stator, and a rotor. The stator includes an armature winding and a stator core including a main core portion with an axial stack of core sheets and a magnetic plate on an end thereof. Each core sheet includes a tooth formation portion around which the armature winding is wound. The magnetic plate includes a stacked portion and an axially extending portion. The stacked portion stacked on the axial end of the main core portion and includes an end located toward the rotor. The axially extending portion extends toward the outer side in the axial direction from the end of the stacked portion located toward the rotor and is opposed to the rotor in a radial direction of the motor. The axially extending portion is shaped to be magnetically skewed in a circumferential direction relative to the tooth formation portion and the stacked portion. | 07-31-2014 |
20140232212 | MOTOR - A motor includes a casing which is a resin molded article produced by using a core-back, a plurality of teeth, an insulator, a coil, a metal terminal, and a protection member as inserts. The protection member includes a cover section through which the metal terminal penetrates in the axial direction. The protection member or the insulator includes a post section arranged to axially extend in a portion of a surrounding of the metal terminal. A connection space within which a connection point of the metal terminal and the lead wire is disposed is provided between the cover section and the insulator and at the side of the metal terminal from the post section. The lead wire is arranged to reach the connection space through an opening arranged in the post section. | 08-21-2014 |
20140232213 | BRUSH HOLDER FOR AN ELECTRIC MOTOR, AND GEAR MECHANISM DRIVE UNIT HAVING A BRUSH HOLDER - A brush holder ( | 08-21-2014 |
20140232214 | DIRECT DRIVE ROTOR WITH METAL COUPLER - A rotor for an outer rotor-type motor is provided. The rotor includes a metallic coupler and a polymeric frame molded over at least part of the metallic coupler. | 08-21-2014 |
20140232215 | BUS BAR MODULE OF ROTATING ELECTRIC MACHINE - This bus bar module ( | 08-21-2014 |
20140232216 | MOLDED MOTOR - The metal conductive plate | 08-21-2014 |
20140239748 | MAGNET CARRIER - A rotor, in particular a permanent magnet rotor, for an electrical machine, with a magnet carrier arranged concentrically with an axis of the rotor, wherein the magnet carrier has protrusions on its outer face, a number of magnets arranged on the outer face of the magnet carrier, which are arranged in the peripheral direction of the magnet carrier side-by-side and spaced apart from one another on the magnet carrier, wherein the magnets in each case are arranged between the protrusions, and plastic, which in each case is arranged between the magnets and at least partially encloses the protrusions. | 08-28-2014 |
20140239749 | ROTOR - Rotor, in particular permanent magnet rotor, for an electric machine, having a magnet support, a plurality of magnets which are arranged on the magnet support, and a rotor core which is arranged between a shaft and the magnet support, wherein the rotor core comprises plastic. | 08-28-2014 |
20140239750 | ROTATING ELECTRICAL MACHINE - This disclosure discloses a rotating electrical machine including a rotating electrical machine main body portion including a stator and a rotor, and a winding switching unit configured to switch windings of the stator. The winding switching unit includes a housing including a flow passage through which a coolant is circulated formed inside, an electronic component mounted on a mounting surface of the housing, and a contact surface disposed on the housing and brought into contact with a wiring related member involving an internal wiring including a wiring connecting the windings and the electronic component. | 08-28-2014 |
20140285038 | PULL TIGHT MOTOR HOUSING - A motor includes a motor assembly, an end cap, a flexible insulating sleeve, and a flexible enclosure. The motor assembly includes a stator, a rotor, and wiring connected to the stator. The end-cap is coupled to the motor assembly to produce first sub-assembly. In addition, the end-cap includes an electrical fitting for feeding the wiring externally of the motor. The flexible insulating sleeve fits over at a least a portion the first sub-assembly to produce a second sub-assembly. The flexible enclosure includes a formed housing section and a connecting section. The formed housing section loosely fits over the second sub-assembly prior to tightening of the connecting section and, when the connecting section is tightened, the formed housing section tightly fits over the second sub-assembly compressing the flexible insulating sleeve to produce an insulating seal. | 09-25-2014 |
20140300217 | High Torque, Low Inertia Direct Drive Motor - A high torque, low inertia direct drive motor comprises a circular outer stator | 10-09-2014 |
20140300218 | SLIP RING DEVICE FOR ROTATING ELECTRIC MACHINE - Provided is a slip ring device for a rotating electric machine, which is capable of reliably retaining a long lead while preventing movement and deformation of the long lead during insert molding. The slip ring device for a rotating electric machine includes: a first ring and a second ring; a long lead ( | 10-09-2014 |
20140312720 | ELECTRIC-MOTOR BRAKE ACTUATOR OF A MOTOR VEHICLE PARKING BRAKE - A particularly cost-effective electric-motor brake actuator which is useable in a highly flexible manner in respect of structural boundary conditions has an integrally formed cup which is equipped with a permanent magnet assembly and can be equipped with a separately manufactured, electromagnetic rotor assembly. In this manner, the equipment outlay is reduced as is the construction costs. | 10-23-2014 |
20140319936 | MOTOR AND METHOD OF MANUFACTURING MOTOR - A motor includes a housing, a stator holder, a stator, and a flow path for a cooling fluid. The cooling flow path is provided between the housing and the stator holder. A coil of the stator is covered by a resin portion. The stator holder may include a holder cylindrical portion and a holder flat plate portion. | 10-30-2014 |
20140319937 | ARMATURE OF ROTATING ELECTRICAL MACHINE - A coil end of a coil is insulated from a stator core by a molded member made of an insulating resin, and the coil, which is positioned in a slot, is insulated by insulating paper. In an armature of a rotating electrical machine, the molded member is divided into a first member and a second member that are rotatably coupled to each other by a hinge. | 10-30-2014 |
20140327329 | FIXING RESIN COMPOSITION, ROTOR, AUTOMOBILE, AND METHOD OF MANUFACTURING ROTOR - A solid fixing resin composition, which has excellent filling properties, and a rotor using the same are provided. The fixing resin composition is used to form a fixing member constituting a rotor which includes a rotor core ( | 11-06-2014 |
20140333157 | PRESS FORMING MACHINE, PRESS FORMING METHOD USING PRESS FORMING MACHINE AND ROTOR CORE OF AC GENERATOR FOR AUTOMOBILES MANUFACTURED BY PRESS FORMING METHOD - A taper shaped steel rod-like member allows a cold press molding apparatus to reduce burrs generated in tooling without the use of lubrication while also extending tool live. The method and process is characterized by holding the preshaped processed material on a backside tool, while press-contacting the processed material to a free rotation roll rotating toward the tip element on the processed material, and shaping a taper shape by plastic-reshaping of the processed material. | 11-13-2014 |
20140333158 | STATOR OF ELECTRIC MOTOR INCLUDING RESIN INJECTED BY INJECTION MOLDING - In a stator of an electric motor having a resin molding portion formed in an inner circumferential portion and an outer circumferential portion by means of injection molding, a partition member for partitioning the inner circumferential portion and the outer circumferential portion of the stator is provided in an axial end portion of the stator. Resin injected from the axial end portion flows in a bifurcated passage into the inner circumferential portion and the outer circumferential portion. The partition member may be provided with a resin passage which allows resin to flow from the axial end portion of the stator to the outer circumferential portion. | 11-13-2014 |
20140339929 | LAMINATED CORE - The invention relates to a laminated core, preferably a stator laminated core or a rotor laminated core ( | 11-20-2014 |
20140346903 | FAN MOTOR - Disclosed herein is a fan motor. In the fan motor according to the present invention which is an outer rotor type, a shaft having a fan fastened thereto is rotatably coupled to a bearing, the bearing is coupled to a bearing holder formed in a bracket, and the bracket is integrally configured of the bearing holder, a hub formed to be extended from the bearing holder to a perimeter, and a base formed to be extended from the hub to a perimeter, such that parts and assembling process may be effectively reduced. Meanwhile, the shaft is fastened with a stopper to prevent floating thereof, thereby improving driving stability and reliability. | 11-27-2014 |
20140354086 | ELECTRICAL MACHINE WITH CONTACT CONNECTORS - An electrical machine includes permanent magnets, a housing, a stator winding contained in the housing, and a cover. The cover includes at least two contactors and is connected to an electrical harness. The stator winding has at least two phase outputs, with at least one electrical connector being fixed to each phase output of the stator winding. Each of the electrical connectors has a contact surface intended to cooperate with a contact element. When the cover is installed on the housing, each contactor of the cover is in contact with a contact surface of a corresponding electrical connector fixed to a phase output of the stator winding, such that the electrical machine is connected to the electrical harness. | 12-04-2014 |
20140354087 | ELECTRIC ROTATING MACHINE - A power module composite includes a power module ( | 12-04-2014 |
20140361643 | METHOD FOR MANUFACTURING ELECTRIC MOTOR STATOR INCLUDING RESIN-MOLDED UNIT, ELECTRIC MOTOR STATOR, AND ELECTRIC MOTOR - A method for manufacturing an electric motor stator, including: attaching a hollow bracket to an end of a hollow stator core and allowing a lead connected to the winding to pass through an opening formed in a peripheral surface of the bracket to take out the lead to an outside of the bracket; placing a core material inside the stator core and the bracket; attaching a sealing member to an outer peripheral surface of the bracket so as to block the opening while allowing the lead to pass through the through-hole; and filling a molten resin into an annular space between the stator core and the core material and between the bracket and the core material, to form a resin unit. | 12-11-2014 |
20140361644 | Magnet wheel - A magnet wheel for an electric motor includes a shaft and a disk made of a plastic containing magnetic particles. The disk is arranged on a carrying hub and the carrying hub is pressed onto the shaft. The carrying hub is a slotted ring around which the disk is molded on by injection molding. | 12-11-2014 |
20140368063 | MOTOR - A motor may include a rotor having a permanent magnet on an outer peripheral face of a rotation shaft and a fixed body having a stator, an opposite-to-output side radial bearing member, and an opposite-to-output side end plate. The opposite-to-output side radial bearing member may be formed with a bearing part, a flange part, and a recessed part recessed toward an output side. An end part on the output side of the bearing part may be located on the output side relative to the end part on the opposite-to-output side of the stator, and an end part on the opposite-to-output side of the rotation shaft protruded toward the opposite-to-output side from the shaft hole may be accommodated in an inside of the recessed part and is located on the output side relative to the end part on the opposite-to-output side of the fixed body in the axial line direction. | 12-18-2014 |
20140375150 | HIGH-EFFICIENCY COMPOUND DIELECTRIC MOTORS - A high-efficiency electric motor generally comprises one or more high-winding inductive coils and a rotor element coupled to one or more permanent magnets for creating rotation driven by the inductive coils, wherein the motor is optimized using dielectric materials for reduced loss. Reduced loss is achieved in several ways, for example by reducing eddy currents, hysteresis, and magnetic drag presented by ferrous and other metallic materials. Thus, the inductive coils generally comprise a dielectric core, as opposed to a metallic or ferrous core material since such materials can create magnetic drag, eddy currents, and hysteresis leading to power loss. Moreover, the motor housing and other motor components may comprise a dielectric material for further reduced energy loss and enhancement of motor efficiency. Other features related to a recycling circuit of certain embodiments wherein energy from a collapsing field of the coils is reused. | 12-25-2014 |
20150008769 | MOTOR AND METHOD OF MANUFACTURING MOTOR - A stationary portion of a motor includes resin bodies including an inner and outer resin portion arranged between a tooth and a coil and between the tooth and an insulator. The outer resin portion covers circumferentially outer sides and axially outer sides of the coil. The inner and outer resin portions are continuous with each other through a connecting resin portion. The insulator includes an opening portion arranged to extend along circumferential side surfaces of the tooth. The inner resin portion is arranged to contact the circumferential side surfaces of the tooth and a conducting wire in the opening portion. Heat generated in the coil is transferred to the tooth through the resin body such that a large area of a path along which the heat is transferred from the coil to the tooth is secured. | 01-08-2015 |
20150022032 | Molded Segment for an Energy Conversion System and Production of Such a Segment - The invention describes a segment for an energy conversion system with windings, where the segment consists of at least two objects. The first object comprises coils, insulation and a polymer while the second object comprises at least a polymer and surrounds the first object. A novel feature of the present invention is that the consolidated coils play the role of mechanical support structure in the segment. A production method for a segment for an energy conversion system is also described. | 01-22-2015 |
20150042180 | INSULATOR, STATOR ASSEMBLY, ROTATING ELECTRICAL MACHINE, AND CONNECTION BOARD - An insulator to be attached to a laminated core of a rotating electrical machine includes a frame-shaped body which surrounds the laminated core and around which a coil wire is wound, and first and second flanges provided at both open sides of the body. The second flange has a first recess that extends toward the body. | 02-12-2015 |
20150042181 | ELECTRIC MOTOR, IN PARTICULAR RADIATOR FAN MOTOR - An electric motor, in particular a radiator fan motor of a motor vehicle, has a rotor which is mounted such that it can rotate in relation to a stator, a motor mount which has an electronics compartment for accommodating a converter electronics system, and an electronics compartment cover. The electronics compartment cover has a peripheral sealing groove into which a peripheral edge of the electronics compartment engages by way of a corresponding sealing web in order to reliably seal off the electronics compartment. | 02-12-2015 |
20150069861 | ELECTRIC MACHINE WITH ROTOR INTERIOR VENTILATION - An electric machine includes a stator, a rotor interacting magnetically with the stator, a housing surrounding the stator and rotor, and a hollow shaft provided for arrangement of the rotor and mounted on the housing. A radial fan is mounted rotationally fixed on the hollow shaft on the ventilation side. A section of a fan blade of the radial fan extends axially away from the housing to a greater extent than the hollow shaft. A guide element with radially extending plate is arranged in the hollow shaft, wherein the plate is arranged axially further away from the housing than the end side of the hollow shaft on the ventilation side. An inner coolant flow can thus be delivered from the section of the fan blade out of the hollow shaft through a passage between the end side of the hollow shaft on the ventilation side and the plate radially outwards. | 03-12-2015 |
20150069862 | Casing for a Rotary Electric Machine, and Rotary Electric Machine Comprising a Casing - A casing for a rotary electric machine and a rotating electric machine includes an inner casing part made of a metal or a metal alloy and which encloses a stator and a rotor of the rotary electric machine, an outer casing part made of plastic and which at least partially surrounds the inner casing part, and at least one connection point located between the inner casing part and the outer casing part and which mechanically connects the outer casing part to the inner casing part, wherein the at least one connection point has a first flange on the outer casing part and a second flange on the inner casing part. | 03-12-2015 |
20150076933 | STATOR TOOTH WIRE RETENTION WINGS - An overmolded stator for use in an electric motor is disclosed. The stator core includes a yoke and a plurality of arcuately spaced apart teeth extending at least substantially radially from the yoke. Each of the teeth presents opposite axially spaced apart endmost surfaces, a leg extending generally radially from the yoke, and a head extending generally arcuately relative to the leg to present opposite head ends spaced from the leg. A pair of wire retention wings extend at least substantially circumferentially outwardly relative to each of the teeth. | 03-19-2015 |
20150076934 | FAN MOTOR - Disclosed herein is a fan motor including: a first bracket having a central portion through which a rotary shaft penetrates, the first bracket having an upper bearing insertion space which is formed in the first bracket and to which an upper bearing for supporting the upper end portion of the rotary shaft is inserted; a second bracket having an upper side to which the first bracket is connected, the second bracket having a lower bearing insertion space which is formed at the central portion of the lower side thereof and to which a lower bearing for supporting the lower end portion of the rotary shaft is inserted; a printed circuit board inserted and fixed into a PCB insertion space formed in the lower side of the second bracket; and a third bracket having an upper side to which the second bracket is connected. | 03-19-2015 |
20150084444 | MOLD STATOR, ELECTRIC MOTOR, AND AIR-CONDITIONER OUTDOOR UNIT - A mold stator is configured to include a stator core and a mold resin that covers the stator core. A divided-core part includes a yoke part that is arranged coaxially with a rotor that is provided in the stator core, a teeth part that extends from the yoke part in a radially-inward direction, and a teeth distal-end part that is formed at a radially-inward end part of the teeth part. An outer-circumferential flat-surface part is formed on an outer circumferential surface of the yoke part and an outer-circumferential flat-surface part is formed at a position on an outer circumferential surface of the mold stator opposing the flat-surface part of the yoke part. | 03-26-2015 |
20150084445 | ELECTRIC MACHINE - An electric machine comprises a sealed outer casing defined by a body and by a cover coupled to the body, a stator and a rotor the latter two being mounted inside the casing; the stator is of a wound type and comprises a core having at least two pole pieces and a plurality of windings each defined by a conductor wire wound in a plurality of coils around the pole pieces; the electric machine further comprises a plurality of plastic components located inside the casing and made of a plastic material whose moisture absorption at saturation is less than 0.8%, having insulating and/or supporting and/or cooling functions. | 03-26-2015 |
20150084446 | DIRECT DRIVE STACKED MOTOR ACUATOR - A motor actuator includes multiple rotors and stators arranged in an alternating configuration. Each rotor is located between two adjacent stators. Each rotor includes magnets assembled on a shaft. The stators are secured to a housing, and each stator has multiple coils embedded as traces within a printed circuit board (PCB). The motor actuator can function as a stepper motor, a continuous BLDC motor, a rotary absolute position encoder, an electricity generator, and a continuous torque meter in a single unit. A stacked configuration for the PCB motor results in a compact design, high torque output, low weight, and high efficiency. | 03-26-2015 |
20150084447 | STATOR INCLUDING A BRACKET, ELECTRIC MOTOR INCLUDING A STATOR, AND METHOD OF PRODUCING AN ELECTRIC MOTOR - A method of producing an electric motor which can prevent resin from ending up leaking from an opening for lead wire use when performing a step of filling a resin in the internal space of the electric motor, provided with a step of attaching a bracket which has an opening for leading lead wires of a coil to the outside, a step of arranging a seal member which has through holes which hold the lead wires at the opening so as to tightly contact without clearance the wall surfaces which define the opening while passing the lead wires through the through holes, and a step of filling a resin in the internal space which is defined by the bracket and the stator core. | 03-26-2015 |
20150084448 | ROTATING ELECTRICAL MACHINE AND METHOD FOR MANUFACTURING ROTATING ELECTRICAL MACHINE - A rotating electrical machine includes a rotor and a stator positioned circumferentially around the rotor. The stator includes multiple core elements arrayed in a circumferential direction of the rotor such that the core elements form multiple slots arrayed in the circumferential direction, and a unitary cylindrical coil resin structure including molded resin and lap wound air-core coils resin-molded in the molded resin, each of the air-core coils having an air-core, a first side portion and a second side portion extending on the opposite sides of the air-core such that the first side portion extends through a first one of the slots and the second side portion extends through a second one of the slots. | 03-26-2015 |
20150091396 | End Shield With Extrusions For Mounting The End Shield To A Stator Stack - A mounting feature plate rigidly mounts a mounting feature to a stator of an electrical motor in proximity to an end shield to help maintain a predetermined air gap between a rotor and a stator in the electrical motor. The mounting feature plate includes a planar member, an offset member extending from the planar member that has a mounting feature configured to mount an electrical motor within an appliance, and a pair of flanges extending from the planar member. Each of the flanges has an opening with a cylindrical extrusion aligned with and extending from the opening. The extrusions are configured to be received within a mounting hole within a stator to enable a bolt to pass through the opening and the extrusion and be received within the mounting hole in the stator. | 04-02-2015 |
20150123501 | MOTOR - Disclosed is a motor including: a housing formed by means of insert injection molding in such a manner as to locate a stator assembly inside a mold, the stator assembly having a stator core, an upper insulator adapted to be coupled to the upper side of the stator core, and a lower insulator adapted to be coupled to the lower side of the stator core; a printed circuit board adapted to mount an integrated circuit device thereon; and at least one or more screws adapted to be inserted into screw holes formed on the top peripheral portion of the housing and having screw heads formed thereon, the screw heads being engagedly coupled to the peripheral portion of the end cover and the end portions of the screws being brought into contact with the stator core. | 05-07-2015 |
20150130299 | ROTATING ELECTRIC MACHINE - This disclosure discloses a rotating electric machine includes a rotor disposed rotatably, a stator including a plurality of stator windings, and a connector unit connecting ends of the plurality of stator windings. The connector unit includes a plurality of conductors, and a plurality of resin films each formed sterically to insulate the plurality of conductors from one another. | 05-14-2015 |
20150145351 | METHOD FOR POTTING A STATOR - The present invention relates to a method for potting a stator of an electric machine, including:—introducing an expandable, preferably elastically deformable, non-metallic shell in a non-expanded state into the stator,—expanding the shell,—pouring a resin around the shell, inside the stator,—retracting and removing the shell after the resin has set. | 05-28-2015 |
20150145352 | ELECTRIC MOTOR AND BEARING ARRANGEMENT - An electric motor has a rotor that is rotatably arranged around a rotor shaft. The rotor is mounted by way of at least one outer bearing that is arranged at a radial distance from the rotor shaft. The rotor has an annular design and is connected to the rotor shaft by way of at least one flexible connecting element. | 05-28-2015 |
20150145353 | MANUFACTURING METHOD OF STATOR AND STATOR AND MOTOR - A manufacturing method of a stator is a method for manufacturing the stator using molds. The stator is constructed so that a stator main body and resin molded portion are integrated. The stator main body includes a terminal portion and a core. The manufacturing method includes: arranging the stator main body such that the terminal portion is located on a top portion of the molds; and filling a cavity with resin. The terminal portion has a gas discharging port configured to discharge gas out of the cavity from inside the cavity in the molds. | 05-28-2015 |
20150295460 | SPOKE PERMANENT MAGNET ROTOR - The present invention relates to a spoke-type permanent magnet rotor ( | 10-15-2015 |
20150295474 | ELECTRIC MOTOR PROVIDED WITH COOLING STRUCTURE - An electric motor comprising a rotor which is attached to a shaft which is supported between a front and rear housings, a stator which is provided between the front and rear housings and has a winding wound at its inside, and a molded plastic piece which covers the stator and which covers the winding, which electric motor further comprises at least one medium charging hole which makes cooling medium flow in from outside the stator to the internal space and at least one medium discharging hole which makes the cooling medium be discharged from the internal space to outside the stator so as to thereby cool the rotor and stator by the cooling medium. | 10-15-2015 |
20150303745 | Axial Gap Motor - To provide an axial gap motor with higher reliability that may prevent displacement of iron core pieces at temperature rise and may be easily manufactured to be lighter. An axial gap motor | 10-22-2015 |
20150303751 | A SPOKE PERMANENT MAGNET ROTOR - The present invention relates to a spoke-type permanent magnet rotor ( | 10-22-2015 |
20150303752 | Rotor of an electric motor and method for producing the rotor - A rotor of an electric motor includes a laminated armature core, a shaft, magnets arranged on the circumference of the laminated armature core, and a plastic overmold. The laminated armature core has at least one associated channel on the circumference of the laminated armature core for each magnet. The channels extend parallel to the shaft, and the laminated armature core has radially oriented webs on the circumference. The webs ( | 10-22-2015 |
20150303756 | MOTOR BOBBIN - A motor bobbin having a bobbin body portion around which a coil is to be wound, and flange portions provided integrally to both end portions of the bobbin body portion, the bobbin comprising: a molded resin article formed by using a polymer having amide linkages, and an insulating paper comprising an aramid paper made of an aramid fibrid and an aramid short fiber, wherein a surface of the molded resin article and the aramid paper are directly bonded to each other. The motor bobbin can cope with an increased efficiency and an increased power output of a motor generator or the like. | 10-22-2015 |
20150311763 | TWO-COMPONENT ISOLATION OF BL STATORS - Stator for an electrodynamic machine, in particular an electric motor, said stator comprising a stator assembly having a first end face and a second end face, wherein a thermally conductive web insulation is provided on the inside of the stator assembly; and a winding support device is provided on at least one end face of the stator assembly. | 10-29-2015 |
20150318762 | BLDC MOTOR FOR ELECTRICAL EQUIMENT - A motor may include a rotating body having: a shaft pin; a rotator having a hollow hole through which the shaft pin may pass; a magnet coupled to an inner surface of the rotator; and a fan having a fan housing coupled to an outer surface of the rotator, a hollow hole formed in a center portion of the fan housing, and radial wings. The motor may also include a stator having: a stator core having a hollow hole formed in the center through which the shaft pin may pass, at least one metal core formed to rotate the rotating body with the magnet, and at least one boss protruding downward at a lower end; and a base bracket having a hollow hole through which the shaft pin may pass, at least protrusion on an outer side coupled to the at least one boss. | 11-05-2015 |
20150326089 | Actuator - An actuator includes a metal housing that consists of multiple housing parts, an electric motor, an actuating member, a transmission mechanism that adapts the movement of the electric motor to the actuating member and an electronic system for controlling the electric motor. A heat sink is situated in a housing part consisting of plastic, said heat sink being connected to a metal housing part. | 11-12-2015 |
20150333594 | ROTATING ELECTRIC MACHINE - Provided is a rotating electric machine capable of suppressing an increase in temperature of an output terminal ( | 11-19-2015 |
20150333603 | Actuator - An actuator including a metal housing that consists of multiple housing parts, an electric motor, an actuating member, a transmission mechanism that adapts the movement of the electric motor to the actuating member and an electronic system for controlling the electric motor. At least one housing part consists of is plastic, a heat sink being situated in the region of the housing part that consists of. The heat sink has thermal connecting surfaces for the electronic system and is connected to a metal housing part. | 11-19-2015 |
20150333605 | SLIP RING APPARATUS FOR ELECTRIC ROTATING MACHINE - A restricting member is provided that is in contact with respective bent lead portions of a long-sized lead and a short-sized lead and imparts a tension to linear lead portions thereof in a mold for insert molding. The restricting member reliably prevents the leads from displacement and deformation resulting from the pressure of the resin at the time of insert molding, and allows the long-sized lead and the short-sized lead to be disposed at proper positions in a molded body. | 11-19-2015 |
20150349593 | Electric Motor - An electric motor has a wound stator and an outer rotor. A core of the stator has outer and inner annular portions. Tooth portions extend radially outwardly from the outer annular portion. Connecting arms interconnect the outer and inner annular portions. The width of the connecting arms is less than the width of the tooth portions. The ratio of tooth height L | 12-03-2015 |
20150349595 | Permanent Magnet Motor - A permanent magnet motor has a number of permanent magnets forming permanent magnet poles. Each magnet has an outer surface that is an arc surface with a convex middle. An inner surface of the magnet is a curved surface with a concave middle. The curved surface has an arc surface section and two planar surface sections. The arc surface has a pole arc angle α of 0.7 to 0.96, and the ratio of an arc angle β of the arc surface section to the pole arc angle α is 0.15 to 0.35. The shape of the inner surface of the magnet creates uneven air gaps between the rotor poles and the stator core poles. This reduces cogging torque, increases the motor efficiency, and reduces the motor noise. | 12-03-2015 |
20150349600 | ELECTRIC MACHINE WITH A STATOR AND A ROTOR - The invention concerns an electric machine with a stator and a rotor, comprising a plate stack with a plurality of superposed plates with windings which can be energized. Disposed at at least one end of the plate stack is an insulating plate. Furthermore, insulating strips are provided on the plate stack, between adjacent windings, which are supported on radially protruding shoulders on the insulating plate. | 12-03-2015 |
20150372544 | Rotary Electric Machine - It is necessary to keep the positional relation between a stator and a housing for a long time, so the stator and housing must be fixed to each other with increased adhesive strength. Since this kind of rotary electric machine is a mass-produced product, the fixing method is demanded to be simple enough to be suitable for mass production. In order to meet this demand, in a rotary electric machine, for bonding and fixing the stator and the housing for covering the stator by synthetic resin, a plurality of projecting parts are formed on the inner circumference of the housing and synthetic resin is poured into between the stator and housing to bond and fix the stator and housing. | 12-24-2015 |
20150380992 | Axial Gap-Type Electric Rotating Machine - The grounding of a stator core with an inexpensive structure and high reliability is to be realized in an axial gap-type electric rotating machine in which a stator is held by resin molding. An axial gap-type electric rotating machine according to the invention includes: a stator having a stator core; a shaft penetrating the stator; a rotor arranged with a space from the stator with respect to the direction of the shaft; a housing which accommodates the stator; a first connection member which connects the stator core and the housing; and a resin material which fixes the stator to an inner wall of the housing. The first connection member is provided with a first connection portion which connects to the stator core, a second connection portion which connects to the inner wall of the housing, and a plastic deformation portion between the first connection portion and the second connection portion. | 12-31-2015 |
20160006316 | RADIALLY OFFSET MOTOR CONTROL HOUSING - A motor comprising a rotor, a stator, a motor shell, a pair of motor endshields, and a controller housing is provided. The rotor is rotatable about an axis. The stator presents opposite axial ends. The motor shell extends around the axis to at least partly circumscribe the rotor and stator. Each motor endshield is positioned adjacent a respective one of the stator ends and provides support for the rotor. The fastener extends through and interconnects the stator and endshields. The controller housing defines an electronics compartment positioned radially outside the motor shell. The controller housing includes a connector that receives the fastener so as to fix the controller housing to the stator and endshields. | 01-07-2016 |
20160013699 | MOLDED MOTOR AND AIR-CONDITIONING OUTDOOR UNIT | 01-14-2016 |
20160013701 | ELECTRIC COMPRESSOR | 01-14-2016 |
20160020653 | MOTOR - A rotor of an electrical rotating machine includes a first rotor core, a second rotor core which overlaps the first rotor core in an axial direction, a non-magnetic substance layer which is interposed between the rotor cores, and a plurality of permanent magnet portions which are embedded in each rotor core. Each of the rotor cores includes a plurality of flux barrier portions and a plurality of effectual magnetic flux portions which are alternately arranged on an outer circumferential surface thereof. The flux barrier portion of the first rotor core overlaps both of a portion of the flux barrier portion of the second rotor core and a portion of the effectual magnetic flux portion of the second rotor core in the axial direction such that, in the adjacent rotor cores, the effectual magnetic flux portions do not overlap each other in the axial direction. | 01-21-2016 |
20160036278 | TERMINAL FOR VEHICLE TRACTION MOTOR AND METHOD OF MANUFACTURING THE SAME - A terminal of a vehicle traction motor includes a plurality of bus bars placed on an assembly jig, a plurality of insulation spacers, where an insulation spacer is inserted between the a pair of bus bars, and a terminal mold placed over the plurality of bus bars and the plurality of insulation spacers, the terminal mold being coupled to an outermost bus bar of the plurality of bus bars, wherein a diameters of each of the plurality of bus bars is different from the other bus bars, and a diameters of each of the insulation spacers is different from the other insulation spacers. | 02-04-2016 |
20160036279 | STATOR OF ELECTRIC MOTOR, ELECTRIC MOTOR, AIR CONDITIONER, AND METHOD OF MANUFACTURING STATOR OF ELECTRIC MOTOR - A lead wire wiring component includes a lead wire guide that guides power supply lead wires and sensor lead wires to a lead wire leading component. The lead wire leading component includes projection portions that can be assembled to the lead wire guide. The projection portions are detached from the lead wire guide for molding such that the lead wire leading component is detached from the lead wire wiring component during the molding. | 02-04-2016 |
20160056680 | ROTATING ELECTRIC MACHINE - The present invention provides an AC generator for a vehicle, in which a resin case ( | 02-25-2016 |
20160065013 | MAGNET ARRANGEMENT FOR CLAW-POLE ELECTRIC MACHINE - An electric machine comprises a stator and a rotor configured to rotate about an axis of rotation in a direction of angular rotation. The rotor includes a first claw-pole segment and an opposing second claw-pole segment. The first claw-pole segment includes a plurality of first fingers extending from a first end member with an opening between each of the plurality of first fingers. The second claw-pole segment includes a plurality of second fingers extending from a second end member with an opening between each of the plurality of second fingers. A plurality of magnets are positioned on the rotor, each of the plurality of magnets positioned between a pair of first and second fingers. A molded plastic insert is positioned on the rotor, the molded plastic insert positioned in one of the openings and extending over an outer surface of each of the plurality of magnets. | 03-03-2016 |
20160072350 | TERMINAL UNIT OF VEHICLE TRACTION MOTOR AND METHOD OF MANUFACTURING THE SAME - A terminal unit of a vehicle traction motor includes a terminal mold, bus bars which are assembled and fixed in within the terminal mold, and insulation spacers which are alternately and sequentially inserted and assembled between the bus bars and have different diameters from each other. | 03-10-2016 |
20160079818 | MOTOR - The motor comprises a rotary unit, a stationary unit disposed around the rotary unit, and a bearing mechanism. The rotary unit comprises a plurality of magnets, a rotor core, a resin portion which covers the plurality of magnets and the rotor core. The rotor core comprises a ring-shaped inner core portion disposed at a radially inner side of the plurality of magnets, an outer core portion, and a plurality of connecting portions which radially connects the plurality of core elements, which are disposed between the plurality of magnets, and the inner core portion. The resin portion comprises an upper resin portion and a lower resin portion. The upper resin portion includes a plurality of gate holes. The lower resin portion is disposed at a more radially inner side than the plurality of outer core elements, and further comprises a first core support mark which exposes a part of the bottom surface of the rotor core, and a second core support mark disposed in the outer core part, and exposes a part of the bottom surface of the rotor core. | 03-17-2016 |
20160079819 | MOTOR - The motor comprises a rotary unit, a stationary unit disposed around the rotary unit, and a bearing mechanism. The rotary unit comprises a plurality of magnets, a rotor core, a resin portion which covers the plurality of magnets and the rotor core. The rotor core comprises a ring-shaped inner core portion disposed at a radially inner side of the plurality of magnets, an outer core portion, and a plurality of connecting portions which radially connects the plurality of core elements, which are disposed between the plurality of magnets, and the inner core portion. The resin portion comprises an upper resin portion and a lower resin portion. The upper resin portion includes a plurality of gate holes. The lower resin portion is disposed at a more radially inner side than the plurality of outer core elements, and further comprises a first core support mark which exposes a part of the bottom surface of the rotor core, and a second core support mark disposed in the outer core part, and exposes a part of the bottom surface of the rotor core. | 03-17-2016 |
20160079825 | POWER FEED SECTION STRUCTURE OF ELECTRIC POWER ASSISTING MOTOR APPARATUS - The connection terminal and the power supply terminal are held by a common holding member made of a resin. The power supply terminal includes a press-fitting portion press-fitted into a press-fitted portion of the holding member. The press-fitted portion of the holding member has a shape that is long in a plate width direction of the power supply terminal and short in a plate thickness direction of the power supply terminal. Assuming that a dimension of each of both end portions of the press-fitted portion in the plate width direction of the power supply terminal is defined as L | 03-17-2016 |
20160079834 | Low-maintenance cogless electric generator featuring magnetic levitation - A cogless electric generator consisting of a compressed nearly all copper air core stator placed within a surrounding rotor containing a plurality of permanent magnets is described which is particularly suitable for direct-drive integration with small-wind turbines. Such turbines become capable of generating electric energy at very low wind speeds. A particular focus is in reducing maintenance and operational costs of such a device by eliminating magnetic attraction of internal components typical of such generators and by reducing friction on bearings through the use of magnetic levitation. Techniques are employed to reduce eddy currents to increase the efficiency of the generator. Air scoops and air flow considerations combined with convective elements intimately in contact with and extending through the stator, allow heat directly from the stator to be dissipated externally. When the generator is assembled and disassembled for service, there is no magnetic attraction or repulsion that would otherwise make such service difficult, dangerous or require special handling tools. | 03-17-2016 |
20160087507 | MINIATURE DRIVE FOR CAR LOCKS WITH AN AXIAL STOP FOR THE MOTOR SPINDLE - For miniature drives which are used in particular in car locks, the axial play of the motor spindle is prevented, or is at least greatly restricted, by the necessary axial stop and also the further motor stop being assigned to the housing cover of the housing. When the housing cover is placed onto the housing casing, said axial stops are inserted into corresponding guides in such a manner that said axial stops subsequently not only restrict the play of the motor spindle and ensure an always uniformly secure arrangement of the motor housing in the housing, but at the same time also make possible the substantially simpler production of the required bearing bore. Said bearing bore and the associated aperture are produced from the outer side of the housing casing during the injection moulding. | 03-24-2016 |
20160099623 | ELECTRONICALLY COMMUTATED DC MOTOR, IN PARTICULAR FOR AN OIL PUMP - An electronically commutated DC motor has a stator wound with a multi-phase stator winding, a permanent magnet rotor mounted rotatably about a motor axis, a circuit board, a guide plate electrically connected to the winding and a housing component. In one implementation, a DC motor can easily be manufactured with the fewest possible process steps, which exhibits a short axial length and a low weight as well as good heat-dissipation properties. It is also an object of the invention to create a DC motor with integrated electronics, whose motor interior can be filled with oil, and which holds the electronics sealed against this oil. For reasons of logistics, an attempt is also made for partial components, such as the electronics, to be designed such that they are capable of complete prior assembly and testing. | 04-07-2016 |
20160111931 | ROTARY MACHINE - A rotary machine includes a rotor and a resin-molded stator which includes a stator core, a coil, a molded portion, a lead line, a bush and a bush supporting frame. The stator core is formed by laminating steel sheets. The coil is formed by winding a conducting wire around a tooth formed to the stator core. The molded portion covers the coil. The lead line is formed by the conducting wire continuing from an end portion of a power supply side of the coil. The bush is formed with a penetrated insert hole where the lead line is passed through. The bush supporting frame is supported by the molded portion and is formed with a penetrated attaching hole into which the bush is fitted in. The lead line is drawn out to the outside of the molded portion from the attaching hole. | 04-21-2016 |
20160111933 | ROTARY MACHINE - A stator of a rotary machine is provided with a first resin molded body, a second resin molded body and third resin molded bodies which electrically insulate a stator core and coils. The first resin molded body is attached to the stator core on a first side of a lamination direction in which steel sheets are laminated and the second resin molded body is attached to the stator core on a second side of the lamination direction. The third resin molded bodies have shapes extending along slot side surfaces and are contacting with a predetermined region of the slot side. First slot side portions of the first resin molded body overlaps end portions of a first side of the third resin molded bodies and second slot side portions of the second molded body overlaps end portions of a second side of the third resin molded bodies. | 04-21-2016 |
20160118853 | ROTARY ELECTRIC MACHINE STATOR - A rotary electric machine stator includes an electric power distributing apparatus that includes: respective phase busbars that are electrically connected to respective phase coils; a resin holder that is disposed so as to surround the respective phase busbars, and that includes a partitioning wall portion that insulates between adjacent busbars, the resin holder including an opening portion that opens outward in an axial direction of the stator core; and a resin cover that covers the opening portion. A rib that is bent radially is formed on a radially outer edge portion of the opening portion of the resin holder. | 04-28-2016 |
20160126792 | INTERIOR PERMANENT MAGNET ROTOR AND METHOD AND APPARATUS FOR MANUFACTURING THE SAME - An interior permanent magnet rotor includes a cylindrical rotor core having an axial hole extending in an axial direction, and a resin magnet that is formed to fill the axial hole by injection molding and that has a pair of axial end faces. The resin magnet includes a linear portion that has a linear shape in section perpendicular to the axial direction of the rotor core. The linear portion has a first end and a second end located closer to an outer periphery of the rotor core than the first end is. A gate mark is located on the second end of the linear portion on at least one of the axial end faces of the resin magnet. | 05-05-2016 |
20160126812 | ACTUATOR DEVICE AND DEVICE FOR CONTROLLING OPENING/CLOSING BODY OF VEHICLE - An actuator apparatus includes a motor, an electromagnetic clutch, and an accommodation member accommodating the electromagnetic clutch, the electromagnetic clutch including an armature supported by a drive member rotated by motor drive and being adapted to rotate integrally with the drive member, a rotor being rotatable relative to the armature and being adapted to rotate integral with an output member, an electromagnet being capable of connecting the armature and the rotor to each other in accordance with an electromagnetic attractive force generated by electrification in such a manner that torque of the motor is transmittable, the actuator apparatus including a conductive member integrally provided at the accommodation member and being connected to a conductive portion of the electromagnetic clutch in such a manner that the conductive member forms a ground circuit that can connect the conductive portion with ground. | 05-05-2016 |
20160141927 | LOW COST INJECTION MOLDED BURIED PERMANENT MAGNET MOTOR FOR AN ELECTRIC POWER STEERING SYSTEM - An interior permanent magnet motor includes a housing, a ring-shaped stator fixed in the housing and having a coil which generates a magnetic field when a voltage is applied, a rotor being disposed for rotation within, and relative to the ring-shaped stator. The rotor includes a shaft rotatably supported by the housing, a magnetic plate pair disposed about an outer circumference of the rotor. A triangular member is disposed between the magnetic plate pair and the shaft. The triangular member having a flat surface mated to each inner end of each magnetic plate of the magnetic plate pair. The triangular member directs flux produced by rotation of the rotor toward the stator. | 05-19-2016 |
20160149457 | THREE-PHASE ROTARY ELECTRIC MACHINE - Communication grooves for communicating an outer circumferential side with an inner circumferential side of a stator core are formed at a contact face, that contacts the stator core, of a three-phase terminal fixing member. Furthermore, a retention part deeper than the communication grooves is formed. When resin is injected, air between the stator core and a stationary mold and between the stator core and a movable mold is discharged to the outside through the communication grooves, and thus it is possible to suppress formation of voids between the stator core and the stationary mold and between the stator core and the movable mold. In addition, the resin expands by releasing its pressure at the retention part, and thus it is possible to suppress the resin from flowing to the outside through the communication grooves. | 05-26-2016 |
20160156233 | ROTOR AND METHOD OF MANUFACTURING SAME | 06-02-2016 |
20160156246 | MOTOR | 06-02-2016 |
20160156247 | DRIVING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME | 06-02-2016 |
20160164237 | BRUSH HOLDER ASSEMBLY AND COMMUTATOR MOTOR COMPRISING SAID BRUSH HOLDER ASSEMBLY - This brush holder assembly includes: a brush holder formed in a disk shape by molding of insulating resin, and including a pair of box fixing sections each including a groove formed from an outer peripheral side toward inside: and brush box assemblies each having a brush box which houses a brush therein, each of the brush box assemblies being disposed in the box fixing section. Each of the brush box assemblies is formed of box-like metal, and has a plurality of mounting legs. Additionally, each of the box fixing sections of the brush holder has a plurality of mounting holes. In this brush holder assembly, these mounting legs are inserted into the respective mounting holes, and the brush box assembly is fixed. Furthermore, in the brush holder assembly of the present invention, the brush holder assemblies face the brush holder through gaps. Additionally, a commutator motor of the present invention includes the above brush holder assembly. | 06-09-2016 |
20160164368 | ELECTRONIC PUMP - An electronic pump includes a second housing, a rotor part, a stator part and a circuit board. A pump chamber is separated by a partition into a wet chamber allowing a working medium to pass through and at least one dry chamber where there is no working medium passing through, and the rotor part is arranged in the wet chamber. The electronic pump further includes a shaft, a sunken portion is formed at a top portion of the partition, and the shaft and a bottom of the sunken portion are fixed by injection molding. A portion where the rotor part is in contact with the shaft is a cooperation portion of the rotor part, and the cooperation portion is arranged in a cavity of the sunken portion. | 06-09-2016 |
20160164370 | STEP ACTUATOR - The invention relates generally to a step actuator, in which a lead screw coupled with a screw thread formed in a nut member is installed in a rotor magnet and moves back and forth in an axial direction responding to a rotation of the rotor to transmit power in an axial direction. A cylindrical bearing for rotatably supporting the nut member is disposed at an upper part of the nut member and integrally formed therewith, to fundamentally remove a gap in the axial direction in the coupled area between the cylindrical bearing and the nut member, thereby significantly reducing the feeding error of a rotator in the axial direction when the lead screw moves back and forth in the axial direction, and reducing the number of parts to be assembled to lower the material cost and the labor cost for assembly. | 06-09-2016 |
20160172922 | METHOD FOR MANUFACTURING ELECTRIC MOTOR STATOR INCLUDING RESIN-MOLDED UNIT, ELECTRIC MOTOR STATOR, AND ELECTRIC MOTOR | 06-16-2016 |
20160172940 | COOLING SYSTEM FOR A DYNAMOELECTRIC MACHINE | 06-16-2016 |
20160181891 | BRUSHLESS MOTOR ASSEMBLY FOR A FASTENING TOOL | 06-23-2016 |
20160197523 | Motor With Composite Housing | 07-07-2016 |
20160197532 | MAGNETICALLY LOADED COMPOSITE ROTOR AND METHODS OF MAKING THE SAME | 07-07-2016 |
20160197535 | ELECTRIC MACHINE | 07-07-2016 |
20160204668 | STATOR POLE INSULATOR | 07-14-2016 |
20160204672 | INJECTION MOLDED BLANK FOR LEAD SCREW, ROTOR-BLANK ASSEMBLY AND METHOD FOR PRODUCING SAME | 07-14-2016 |
20160254711 | MOTOR | 09-01-2016 |
20160254723 | MOTOR-DRIVEN COMPRESSOR | 09-01-2016 |
20160254731 | ELECTRICAL MACHINE, IN PARTICULAR ELECTRIC MOTOR FOR A MOTOR VEHICLE, AND GEARBOX ACTUATOR | 09-01-2016 |
20160254735 | BRUSHLESS DC ELECTRIC MOTOR | 09-01-2016 |
20180026500 | Axial Flux Machine Manufacture | 01-25-2018 |