Class / Patent application number | Description | Number of patent applications / Date published |
310216004 |
Laminated core
| 174 |
310216113 |
Having a particular binding or supporting means
| 160 |
310216074 |
Pole structure
| 74 |
310216069 |
Having slot of particular shape
| 36 |
310216106 |
Having flux guide
| 19 |
310216111 |
Core having a particular dimension
| 16 |
310216066 |
Homogeneous core or yoke (e.g., solid core)
| 8 |
310216003 |
Wire core | 3 |
20090295253 | Motor/generator - A motor/generator comprising a magnetic structure configured to generate a compressed magnetic field, an electrical conductive winding and a magnetic conductive winding configured to focus magnetic flux in the electrical conductive winding. The motor/generator may be advantageously employed in electromechanical and electromagnetic devices. | 12-03-2009 |
20100013345 | Bi-metal coil - A coil comprising an electrical conductive winding and a magnetic conductive winding configured to focus magnetic flux in the electrical conductive winding. The coil may be advantageously employed in electromechanical and electromagnetic devices. | 01-21-2010 |
20150084474 | RESIN MOLDED STATOR AND MANUFACTURING METHOD THEREOF - A method for manufacturing a resin molded stator may include: preparing a straight winding core in which neighboring partial core backs are coupled by a joint; bending the core at joints and causing distal ends of teeth to face an outer peripheral surface of a core metal to obtain a core metal assembly including a stator mounted on the core metal, arranging the core metal assembly in a mold; injecting resin into the mold, covering windings with resin, curing the resin; and removing the stator from the mold and the core metal. The core metal may include a plurality of ribs projecting outward from the outer peripheral surface, the number of the ribs being between three and the number of the teeth. Each rib may extend parallel to a center axis, and each rib may be located in a gap between the distal ends of adjacent teeth. | 03-26-2015 |
310216109 |
Spaced-segment core | 3 |
20090243424 | GAP WINDING MOTOR - A gap winding motor includes a stator and a rotor. The stator includes a stator core and air-core coils for generating a rotating magnetic field which are attached to an inner peripheral surface of the stator core. The rotor is disposed so as to face the stator with an air gap therebetween. A stator core is divided into two core portions in an axial direction of the motor, and a spacer is disposed between the core portions. A unique air-gap section is provided between the core portions, and coil terminal processes are performed in the air-gap section between the core portions. | 10-01-2009 |
20090267443 | STATOR FOR ELECTRIC MOTOR AND MANUFACTURING METHOD THEREOF - A stator for an electric motor comprises: a plurality of segmented cores each having one yoke and at least one pole protruding from the yokes in a radial direction; a plurality of bobbins formed to receive the poles therein, having blocking walls extending from one side of ends of the poles in a circumferential direction thereby to block a space between the poles, and coupled to the poles; and stator coils wound on the bobbins. Accordingly, the temperature of the stator core and the stator coil are prevented from rising, and a noise occurrence is reduced. Also, a winding operation for the stator coil and a manufacturing process are facilitated. | 10-29-2009 |
20140091673 | Direct Drive Segmented Generator - The present invention relates a stator segment for an electrical machine, comprising a plurality of windings, each winding having a winding starting and ending point, and a stator yoke with a plurality of stator slots for receiving at least one stator winding, said segment having a first side and a second side. At least one winding having its starting point at the first side, and its ending point at the first side of the segment, the at least one winding is received in one or more stator slots. At least one other winding having its starting point at the second side, and its ending point at the second side of the segment, the at least one other winding is received in one or more stator slots | 04-03-2014 |
310216108 |
Having flux shield | 3 |
20100201220 | ROTOR WINDING SHIELD FOR A SUPERCONDUCTING ELECTRIC GENERATOR - A generator rotor core ( | 08-12-2010 |
20110254403 | INTEGRATED STATOR FLANGE ASSEMBLY FOR DYNAMOELECTRIC MACHINE - An integrated stator flange assembly is disclosed. In one embodiment, the integrated stator flange assembly may have an outer surface and include: a stator flange; and a flux shield bonded directly to the stator flange, the flux shield forming a portion of the outer surface of the integrated stator flange assembly. | 10-20-2011 |
20150123511 | Flux Shield for Electric Motor - An electric motor includes: a stator; a shaft; a rotor mounted on the shaft, the rotor having an end ring that is concentric with the shaft; and a flux shield around the shaft inside the end ring. | 05-07-2015 |
Entries |
Document | Title | Date |
20090230811 | MOTOR AND COMPRESSOR - A motor includes a rotating shaft, a rotor fixed to the rotating shaft, and first and second stators facing each other on opposite axial sides of the rotor with a gap in between. Each of the first and second stators includes a back yoke, teeth circumferentially arranged on a gap side of a respective one of the back yokes, and coils wound around the teeth. The back yoke of the first stator has a portion facing an end face of the rotating shaft, and the back yoke of the second stator has a shaft hole through which the rotating shaft passes. The thickness Ty | 09-17-2009 |
20090284096 | Electrical motor and method for manufacturing the same - There is provided an electrical motor in which the dimensional accuracy of a stator is increased more easily, and the influence exerted on a magnetic circuit is kept as little as possible. In an electrical motor in which the stator | 11-19-2009 |
20100052463 | DEVICE FOR PRODUCING RING CORE, METHOD FOR PRODUCING RING CORE AND RING CORE PRODUCED BY THAT METHOD - In the device for producing a ring core, a drop-through blanking die ( | 03-04-2010 |
20100295406 | Brushless DC Motor Structure With a Constant Ratio of Magnetic Rotor Poles to Stator Slots - A brushless DC motor structure with a constant ratio of multiple rotor poles to slots of the stator is disclosed, which is characterized primarily by forming the stator of the motor by multiple ferromagnetic silicon steel sheets, where the ferromagnetic silicon steel sheets are provided with the multiple slots whose number is a multiple of 15, and the stator of the motor is formed by windings of the three phases, X, Y, and Z. Each phase includes 2 to 4 phase portions and each group has 5 slots. The rotor of the motor is made up of a plurality of arced magnets which are fixed orderly and equally along a ferromagnetic steel ring, and the radial direction of each arced magnet is opposite to that of the adjacent magnetic poles. An arced magnet represents a magnetic pole, and the number of the magnetic poles is a multiple of 14 or 16. By means of the aforementioned setting, the reduction of the cogging torque of the motor is achievable. | 11-25-2010 |
20120080977 | MULTI-GAP ELECTRIC ROTATING MACHINE - In a multi-gap electric rotating machine, a stator core has a radially outer portion, a radially inner portion and a connecting portion. The radially outer portion is located radially outside of a rotor core with a radially outer magnetic gap formed therebetween. The radially inner portion is located radially inside of the rotor core with a radially inner magnetic gap formed therebetween. The connecting portion radially extends to connect the radially outer and inner portions and is located on one axial side of the rotor core with an axial magnetic gap formed therebetween. A stator coil is formed of electric wires mounted on the stator core. Each of the electric wires has radially-outer in-slot portions, radially-inner in-slot portions and radially-intermediate in-slot portions, which are respectively received in slots of the radially outer portion, slots of the radially inner portion and slots of the connecting portion of the stator core. | 04-05-2012 |
20120086301 | POWER GENERATING APPARATUS AND MOTOR - Disclosed are a power generating apparatus and a motor. The power generating apparatus includes a stator made of a nonferrous metal, with a coil being wound thereon, and a rotor made of a nonferrous metal. The rotor is rotatable relative to the stator, and a plurality of magnets are disposed in surfaces of the rotor, so that the rotor interacts with the stator, thereby generating electricity. In the power generating apparatus and the motor, not only the stator but also the rotor is made of a nonferrous metal, such as stainless steel, aluminum, or the like. This ensures that rotation of the rotor is more efficient, thereby increasing the operation efficiency of the power generating apparatus and the motor. | 04-12-2012 |
20120187798 | THREE-PHASE DC MOTOR - A three-phase DC motor includes a rotor | 07-26-2012 |
20120212097 | ELECTROMECHANICAL GENERATOR FOR CONVERTING MECHANICAL VIBRATIONAL ENERGY INTO ELECTRICAL ENERGY - An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising a housing, an electrically conductive coil assembly fixedly mounted in the housing, a magnetic core assembly movably mounted in the housing for linear vibrational motion along an axis, a first biasing device, mounted between the housing and the magnetic core assembly, adapted to apply a centering force acting to oppose movement of the magnetic core assembly away from a central position on the linear axis and a second magnetic biasing device adapted to provide a compensating force to compensate for variations in the centering force of the first biasing device due to temperature. | 08-23-2012 |
20130134822 | ELECTRICAL MACHINE COMPRISING A ROTOR PROVIDED WITH A WINDING FOR FACILITATING SWITCHING AND RELATED STARTER - A machine having a wound rotor ( | 05-30-2013 |
20130147308 | SPINDLE MOTOR - There is provided a spindle motor including: a base part having a lower end portion of a shaft fixed thereto; a rotating member rotatably installed with respect to the shaft and forming a bearing clearance with the shaft, the bearing clearance being filled with a lubricating fluid; a coupling member fixedly installed on the rotating member and including an inclined surface allowing an interface between the lubricating fluid filling the bearing clearance and air to be formed; and an upper thrust member fixed to the shaft so as to form the interface between the lubricating fluid and air, with the coupling member. | 06-13-2013 |
20130169103 | CONDUCTOR WELD-END FORMING PROCESS - A method of joining a plurality of electrical conductors in an electric machine comprises the steps of providing a core with a plurality of circumferentially spaced openings, and positioning a plurality of conductors within the openings of the core in a plurality of concentric layers. Each conductor includes an end that extends from the core. The ends of the conductors have a first shape. The method also includes the step of shaping the ends of the conductors with a set of forming dies to form a second shape. Additionally, the method includes the step of joining a pair of adjacent ends with a joining tool to form a joint with a third shape after shaping the ends to form the second shape. The method further includes the step of removing the set of forming dies and the joining tool from the joint after the joining step. | 07-04-2013 |
20130293056 | STATOR COIL OF ELECTRIC MACHINE - Stator coils of electric machines are revealed. A stator plate is fixed on an axle of an electric machine and an external rotor of an electric machine spins with respect to a stator. A plurality of cores made from silicon steel plates is disposed in a circle around the stator plate. Each core is wound with at least two layers of flat coils and the two adjacent coils are wound in opposite directions. Thereby the stator coils have a stronger magnetic field. Thus the electric machine with the stator coils is of high torque. | 11-07-2013 |
20130342068 | MOTOR AND ELECTRIC EQUIPMENT USING SAME - A plurality of protruding portions each having a predetermined width in a circumferential direction are respectively provided at a predetermined interval along an outer periphery of a stator, and through-holes are formed at both ends in the circumferential direction of the protruding portions. A total length of the widths, which the protruding portions respectively have, in the circumferential direction is set equal to or less than 25% of an outer circumference of the stator. With this structure and by virtue of the through-holes, a compressive stress built up in an inner periphery of the stator due to pressing forces imposed on center areas of the protruding portions can be distribute toward the outer periphery of the stator. | 12-26-2013 |
20140111059 | WOUND STATOR CORE - A wound stator core disclosed is substantially formed from a spirally piled strip. In an embodiment, the strip with a specific length is formed with a first dentition and a second dentition, whereas the first dentition is featured by a first slot-number ratio and is composed of a first side and a plurality of first teeth in a manner that the plural first teeth are arranged as an array on the first side; which is also same to the second dentition while allowing the second slot-number ratio to be equal to the first slot-number ratio. In addition, each first tooth is formed with a first dental part at a free end thereof, while also each second tooth is formed with a second dental part at a free end thereof, and the first dental part of each first tooth is connected to the second dental part of its corresponding second tooth. | 04-24-2014 |
20140132106 | MOTOR HAVING BRIDGED STATOR WITH SEARCH COIL - A motor is provided for use in a machine. The motor includes a bridged stator. | 05-15-2014 |
20140167555 | CARBON FIBER STATOR AND ROTOR FOR AN ELECTRIC MOTOR - An electric motor includes a carbon fiber stator core having a plurality of longitudinal slots and poles arranged on an interior surface thereof, the stator core having a hollow central portion. A thin metallic sleeve is inserted into the stator core so as to mate with an interior surface of the stator core. An outer surface of the metallic sleeve corresponds in shape to the interior surface of the stator core. A carbon fiber rotor is suspended within the hollow central portion of the stator core. The carbon fiber rotor further includes inserts formed of ferromagnetic metals or permanent magnets. | 06-19-2014 |
20140306572 | ROTOR ASSEMBLY - A rotor assembly comprises a number of rotor segments forming a rotor structure and a central structure connected to the rotor structure and at least partially arranged between at least two of the rotor segments, for example surrounded by the rotor structure. A wind turbine generator comprising a stator assembly and said rotor assembly and a wind turbine comprising such a generator are also provided. | 10-16-2014 |
20140333173 | MOTOR HAVING ELECTROMAGNETIC ROTOR - Disclosed is a motor including: a rotor housing; a stator assembly located inside the rotor housing; a first core located inside the stator assembly; a second core located at the center of the rotor housing; and a coil housing located inside the rotor housing and having a space portion formed at the inside thereof. | 11-13-2014 |
20150022051 | Fiber Reinforced Elastomeric Stator - Embodiments disclosed herein relate to a composition useful for forming stator or a portion thereof. The composition may include: a curable elastomer; a fiber fibrous compound; a fiber dispersion compound; and optionally carbon black. | 01-22-2015 |
20150115766 | Dust Core, Method of Manufacturing Said Dust Core, and Inductance Element and Rotary Electric Machine Including Said Dust Core - It is an objective of the invention to provide a dust core made of an Fe-based amorphous metal powder having excellent magnetic properties, in which the dust core has a higher-than-conventional density, excellent magnetic properties and a high mechanical strength. There is provided a dust core including a mixture powder compacted, the mixture powder including: an Fe-based amorphous metal powder having a crystallization temperature T | 04-30-2015 |
20160028285 | ROTATING ELECTRICAL MACHINE - A rotating electrical machine includes: a core including an annular yoke portion disposed while being centered around a rotation axis; toothed portions protruding from the yoke portion in a radial direction; and a tooth flange portion circumferentially sticking out from a protruding end of each of the toothed portions while being centered around the rotation axis; and an insulator covering a region from the toothed portion to the tooth flange portion, wherein the insulator includes a tooth cover portion, and a flange cover portion, and a reinforced portion is formed at the boundary between the tooth cover portion and the flange cover portion, and includes a first restricting surface, and a second restricting surface. | 01-28-2016 |
20160036284 | Highly Reinforced Elastometric Stator - Elastomeric compositions containing a combination of selected carbon blacks. The resultant elastomers have improved durability and/or power generation. Such elastomers may be used in oilfield products, for example, as seals or stator liners. Methods of producing these elastomeric compositions are also disclosed. | 02-04-2016 |
20170237324 | ALTERNATING-CURRENT MOTOR | 08-17-2017 |