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Condition responsive (e.g., position, torque, etc.)

Subclass of:

310 - Electrical generator or motor structure

310010000 - DYNAMOELECTRIC

310040000 - Rotary

310066000 - With other elements

310068000 - Electric circuit elements

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Entries
DocumentTitleDate
20100102684Generator set having two-piece terminal box - A terminal box for a use with a generator set is provided. The terminal box may have a customer connection, a first housing piece configured to be mounted proximate a generator of the generator set, and at least one cable housed within the first housing piece to electrically connect the generator with the customer connection. The terminal box may also have a second housing piece mounted to the first housing piece distal the generator, and at least one control component housed within the second housing piece to regulate a characteristic of electrical power produced by the generator.04-29-2010
20130038182INVERTER-DRIVEN DYNAMO ELECTRIC MACHINE AND SYSTEM, BEARING, AND END BRACKET FOR SAME - The purpose of the invention is to provide an inverter-driven dynamo electric machine and system for the same having high reliability and high efficiency such that even in the case of inverter pulse voltages having high dv/dt, generation of shaft voltages and generation of shaft currents causing electric corrosion of a bearing with the generation of the shaft voltages are suppressed, thereby keeping the bearing free of electric corrosion.02-14-2013
20100109492STARTER - Provided is a starter that can ensure stable insulation and exhibits excellent leakage resistance. The starter includes: a starting motor realized with a dc motor that has a commutator, positive brushes which are disposed around the commutator to abut on the commutator and connected to an external power supply, negative brushes, which are opposed to the positive brushes, stored in a bracket bearing one end of a rotation shaft; and a starting switch that is mounted on the starting motor and electrically connects or disconnects the external power supply to or from the positive brushes. When an engine is started, the starting motor is driven with the external power supply via the starting switch, and the starting motor is mechanically coupled to the engine. Herein, the starting motor has an insulating member disposed only on the internal surface of the bracket neighboring the positive brushes.05-06-2010
20130088128DEVICE FOR CONTROLLING DRIVE OF MOTOR FOR ELECTRIC POWER STEERING DEVICE - A device designed to reduce temperature rise in its control board. The device includes a switching element; a coil; a smoothing capacitor; an electrical connection member for electrically connecting the switching element with the smoothing capacitor and the coil; a control board that mounts a control element; a control signal line for electrically connecting the switching element with the control board; and a switching element placing portion for placing the switching element thereon. The electrical connection member is arranged between the switching element and the control board; the smoothing capacitor and the coil are arranged, with respect to the electrical connection member, on a side of the switching element; and end surfaces of the smoothing capacitor and the coil are positioned, with respect to the electrical connection member, apart from a plane where the switching element and the switching element placing portion are adjoined together.04-11-2013
20120262034SPINDLE MOTOR - Disclosed herein is spindle motor including a rotating part, including: a rotating shaft and a magnet; a fixing part including a bearing supporting the rotating shaft, an armature opposite to the magnet, a printed circuit board applying power to the armature, and a base plate coupled with the rotating part, wherein the rotating part rotates by electromagnetic force of the magnet and the armature, and an end of the base plate contacting the printed circuit board is provided with a downward inclined part having a round shape so as to be coupled with the printed circuit board.10-18-2012
20130069495SWITCHED RELUCTANCE MOTOR - Disclosed herein is a switched reluctance motor including: a bracket made of a magnetic material; a circuit board mounted on an upper portion of the bracket and including various electronic circuits mounted thereon, the electronic circuits applying electric force; a stator assembly mounted on an upper portion of the circuit board and including a plurality of salient poles formed in a radial direction, the salient poles including coils wound therearound; and a rotor case including protrusion parts and groove parts formed at a side thereof, coupled to an outer diameter of the stator assembly and rotating by electromagnetic force generated in the stator assembly when power is applied to the coils.03-21-2013
20130069496COMPOSITE PERMANENT MAGNET SYNCHRONOUS MACHINE - A composite permanent magnet synchronous machine includes a permanent magnet synchronous machine module having a rotor unit and a stator unit; a bottom base having an accommodation space; a top cover having a front surface; and a shaft penetrating through the front surface. The rotor unit has P rotor magnets and the stator unit has S slots, wherein a tooth part is defined between every two adjacent slots, and a coil is wound on the tooth part, where P is 38N, S is 36N, and N is a positive integer; or P is 34M, S is 36M, and M is a positive integer. The machine is suitable for wind power generators or any other machine structure.03-21-2013
20100270894DEVICE FOR CONTROLLING A MOS TRANSISTOR - A device for controlling a transistor, the device comprising an amplifying device (10-28-2010
20130057122ADJUSTING DRIVE, IN PARTICULAR WINDOW LIFTER DRIVE - The invention relates to an adjusting drive (03-07-2013
20120223625Drive Module Assembly and Method of Assembling Same - An assembly including a drive motor and a gear plate. The gear plate includes a seat for retaining the drive motor. The assembly also includes a motor cap having at least one pawl for snap-fitting into the seat. The assembly further includes at least one post, which is adapted to receive a gear.09-06-2012
20120223624MOTOR AND MOTOR FOR ELECTRIC POWER STEERING - A motor body has feeder terminals. Connecting ends of the corresponding feeder terminals are exposed radially outward from a motor case. The motor body has an end frame having an attachment portion. In this configuration, a control unit is fixed to the attachment portion and connecting terminals of the control unit are arranged to be allowed to contact the corresponding connecting ends. By fastening the fastening screws at positions radially outward of the motor case, the connecting terminals of the control unit are connected to the connecting ends of the motor body.09-06-2012
20130162115FLAT-TYPE VIBRATION MOTOR - There is provide a flat-type vibration motor capable of significantly reducing the generation of injection burrs during an injection molding process of an injection molding material, the flat-type vibration motor according to the present invention including: a rotor including a first substrate having a circuit pattern formed on a surface thereof and a holder coupled to the first substrate by injection molding; and a shaft including the rotor rotatably coupled thereto and forming a rotational axis of the rotor, wherein the circuit pattern may include a sealing pattern formed along an outline of the holder.06-27-2013
20110043082CONVERTER MOTOR - The invention relates to an inverter motor comprising a motor (02-24-2011
20110285256Motor with rotor-mounted control circuitry - A rotating electromechanical machine has a rotor having at least one current-carrying winding and at least one rotor-mounted sensor configured to sense a machine property or parameter during machine operation. Rotor-mounted circuitry dynamically modifies at least one property of the current-carrying winding during machine operation in response to the sensed machine property or parameter.11-24-2011
20090206710CONNECTING SUPPORT FOR HOLDING MOTOR ELECTRONICS - The invention relates to a connecting support (08-20-2009
20100033066Starting device for engines - An electromagnetic switch unit comprises a solenoid device that pushes out a pinion gear to a ring gear side of an engine, and an electromagnetic switch that opens and closes a main point of contact of a motor circuit. The solenoid device and the electromagnetic switch are arranged in series in an axial direction, while a magnetic plate that forms a part of magnetic circuit between a first coil used for the solenoid device and a second coil used for the electromagnetic switch is shared by the solenoid device and the electromagnetic switch.02-11-2010
20090153001Driving Circuit Board Assembly for Motor - A driving circuit board assembly for a motor includes a plurality of driving circuit boards having a plurality of faces for mounting a plurality of electronic elements thereon. The driving circuit boards are stacked in an axial direction of a motor. Two of the driving circuit boards adjacent to each other are spaced by a conductive connecting member that is in electrical connection with the two driving circuits.06-18-2009
20090015112ELECTRICAL MACHINE HAVING AN APPARATUS FOR AVOIDING DAMAGING BEARING CURRENTS, AND A CORRESPONDING METHOD - The aim is to avoid damaging lubricating-film discharges occurring via bearings (WL) in electrical machines. For this reason, provision is made for a current to be forced to flow through the bearing (WL) specifically, with the aid of a current source (IQ). The current then flows from one of the two bearing components via the lubricating film to the other bearing component. Alternating currents are particularly suitable since the lubricating film is conductive, so that the capacitance defined by the lubricating film cannot be charged, or can be charged only slightly.01-15-2009
20110133609ELECTRIC MOTOR AND ELECTRIC DRIVE UNIT FOR MOTOR VEHICLES - The invention relates to an electric motor for motor vehicles, in particular a direct current low-power electric motor, comprising a housing (06-09-2011
20110062833TRANSVERSE REGULATED FLUX ALTERNATOR - An alternator has a rotor to be associated with a prime mover shaft and driven for rotation. The rotor is provided with permanent magnets. A stator has pole pieces, including a main winding and flux diverters separating the main winding from a control coil. Control is provided for controlling the power passing through the control coil. The alternator is a transverse flux machine. A vehicle power system including the alternator is also disclosed.03-17-2011
20090284106ROTARY ELECTRIC MACHINE INTEGRATED WITH CONTROL DEVICE - A rotary electric machine integrated with a control device includes stator current switching circuit sections, each of which has a switching element disposed on a heat sink; a field current switching circuit section; a control circuit section which controls the stator current switching circuit sections and the field current switching circuit section; and a case which contains the stator current switching circuit sections and has suction holes each for a cooling air inflow, the heat sinks of three phases for the stator current switching circuit sections being disposed in a circumferential direction of the rotary electric machine. In the rotary electric machine, of the suction holes of the case, an area of the suction hole for the heat sink of the phase disposed in the midst is set to be larger than an area of the suction hole of other phase.11-19-2009
20110266928MOTOR CONTROL APPARATUS, POWER STEERING APPARATUS AND BRAKE CONTROL APPARATUS - A motor control apparatus including: a motor including a rotating member and a stator; a housing member including a motor housing portion and a power system substrate housing portion, the motor housing portion enclosing the motor and extending in an axial direction of the rotating member, the power system substrate housing portion being integrally formed with the motor housing portion and being located is radially outside of the motor; a control system board supporting a component of a control circuit to control the motor, and including a first board portion facing the motor in the axial direction, and a second board portion extending radially from the first board portion; and a power system substrate supporting a component of a power supply circuit to supply power to the motor, the power system substrate being provided in the power system substrate housing portion.11-03-2011
20100033065BRUSHLESS MOTOR STATOR - A plurality of winding parts are wound around teeth of an iron core with insulators disposed therebetween, and a printed wiring board is electrically connected to the winding part with a plurality of terminal pins. Each terminal pin is extends along an axial direction of the iron core and is attached to one of the insulators. An end portion of each winding part is wound around one of the terminal pins, and the terminal pin is soldered to the printed wiring board together with the end portion of the winding part. The terminal pins extend through hole portions of the printed wiring board.02-11-2010
20080309205Clean engine - A clean engine for transportation, generators, and other applications. It comprises a series of alternating support wheel assemblies and magnet wheel assemblies that are propelled in a consistent pattern by battery powered electromagnets. The engine comprises at least one support wheel assembly and at least one magnet wheel assembly. The support wheel assemblies and magnet wheel assemblies are aligned in a specific pattern along a main shaft that is supported on each end by sealed bearings mounted in a nonmagnetic housing.12-18-2008
20080315730HIGH SPEED GENERATOR ROTOR FIELD COIL LEAD RETENTION SYSTEM - A high speed aircraft generator utilizes a resistor bobbin to constrain field leads from radial displacement during operation of the generator. The resistor bobbin is provided with passages through which the field leads are passed. The passages are parallel to an axis of the generator. The resistor bobbin thus serves two purposes in the generator; its normal function of supporting a resistor coil and a second function of constraining field leads. The field leads have a round cross-sectional configuration. The field leads are attached to flat conductors of a field coil with a unique brazing clip.12-25-2008
20080290764ELECTRODYNAMIC MACHINE CONTROL - An electrodynamic machine has a winding and a switching arrangement effectively dividing the winding into individually controllable portions. During a first operating condition, current flows through the entire winding in a manner controlled by the switching arrangement. In a second condition, the switching arrangement restricts current flow to only a portion of the winding. The second condition effectively reduces the inductive capacity of the winding.11-27-2008
20120104907COMBINATION OF OUTER MOTOR AND CONTROL BOX THEREFOR - A combination of an outer motor and a control box therefor including an upper main body and a lower controller. The upper main body includes a casing, a front end cover, a rotor assembly, and a stator assembly. The controller includes a control box and a control circuit board, and the control box is sheathed in a tail end of the casing. A center of an upper bottom surface of the control box is arranged with a bearing chamber corresponding to that arranged at the front end cover. The control box forms a cavity downwards accommodating the control circuit board. A cover is mounted at the bottom of the control box. A fairlead arranged at an inner wall of the control box extends through the bottom of the motor casing to connect an empty cavity of the casing.05-03-2012
20130214651INTERFACE MODULE AND METHOD FOR COMMUNICATING WITH AN ELECTRIC MACHINE - An electric machine that includes a machine housing, a stator positioned at least partially within the machine housing and comprising a plurality of stator windings, a rotor positioned at least partially within the machine housing and configured to rotate with respect to the stator, and a motor controller configured to selectively provide power to the plurality of stator windings is described. The electric machine also includes an interface module configured for coupling to the motor controller. The interface module includes a processing device, a first communication interface coupled to the processing device and configured for coupling with the motor controller, and a second communication interface coupled to the processing device and configured to receive a control signal.08-22-2013
20110169383ELECTRIC MOTOR AND BRUSH HOLDER SPRING - An electric motor (07-14-2011
20090096330ELECTRONICALLY COMMUTATED ELECTRIC MOTOR AND METHOD FOR PRODUCTION THEREOF - An electronically commutated electric motor has an internal stator (04-16-2009
20110175497MOTOR AND ELECTRONIC APPARATUS USING THE SAME - The motor comprises a stator, a rotor, and magnets. The stator has a plurality of magnetic poles circumferentially arranged at first spaced intervals. The rotor is rotatably arranged in a position opposing to the stator. The magnets are arranged at second spaced intervals circumferentially on a surface of the rotor. The stator is formed by laminating plate materials, and a plurality of laminated plate materials at least including outermost layers of a laminated body thereof are bent in a direction substantially parallel to the magnet in order to form extended portions. And, when a magnet opposed area of pole tip portion being closest to a magnet including the extended portion is S, and a sectional area of magnetic pole is A, then area ratio (S/A) fulfills the relation of 4.8>(S/A).07-21-2011
20110175496CONTROL APPARATUS-INTEGRATED DYNAMOELECTRIC MACHINE - A dynamoelectric machine main body, power circuit modules and a field circuit module, and a control apparatus that has a heatsink that is prepared by die casting, and that is mounted integrally onto the dynamoelectric machine main body are included, the heatsink including a plurality of convex heat receiving portions that are disposed so as to project from a front surface of a base plate, and that have heat receiving surfaces, the power circuit modules and the field circuit module including seal main body portions that are constituted by an electrically insulating resin that seal switching elements so as to expose bottom surfaces of element heat radiating portions on reference surfaces that have a surface shape that corresponds to a shape of the heat receiving surfaces, and electrical insulation supporting layers being interposed between the bottom surfaces of the heat receiving surfaces and the element heat radiating portions.07-21-2011
20090026896Starter for engines and its starting circuit - The starter has a system of pushing the pinion gear in the direction of the anti-motor side by using the attracting power of the electromagnetic switch via the shift lever. The switch coil of the electromagnetic switch is constituted of one coil that is electrically separated from the motor circuit. The mass of pinion gear is set to 100 g or less, the switch extrusion power stored in the drive spring is set to 70N (Newton) or less, and the operation current of the electromagnetic switch is set to 12 amperes or less. With this starter, since the switch coil and the motor circuit can be electrically separated, the terminal for connection for connecting the conventional attracting coil and conventional “M terminal bolt” can be abolished. Further, by setting the operation current of the electromagnetic switch 10 to 12 amperes or less, it is possible to control the operation current directly by the ECU.01-29-2009
20120200205CONDUCTIVE COMPONENT AND METHOD FOR TREATING THE CONDUCTIVE COMPONENT - A conductive component and a method for treating the conductive component to modify conduction through the component are disclosed. The method includes heating the component such that annealing of an exterior layer of the component occurs without annealing of an interior layer of the component, wherein the interior layer is disposed adjacent to and integral with the exterior layer. The method further includes cooling the component such that annealing of the exterior layer ceases without annealing of the interior layer. The component includes an annealed exterior layer having a thickness of less than or equal to approximately 10 millimeters, and a non-annealed interior layer disposed adjacent to and integral with the exterior layer.08-09-2012
20100066216QUANTUM MOTOR - To provide a quantum motor capable of reliably carrying out rotation. A quantum motor includes a rotor containing a functional material of which quantum characteristic is externally controllable, an N pole permanent magnet and an S pole permanent magnet applying magnetic field to the rotor, and a light source varying the quantum characteristic of the rotor. The light source varies the quantum characteristic of the rotor, so that rotation force is generated in the rotor and the rotor rotates.03-18-2010
20100019629BRUSHLESS MOTOR FOR WASHING MACHINE AND WASHING MACHINE HAVING THE BRUSHLESS MOTOR MOUNTED THEREIN - A brushless motor, to be used in a washing machine, includes a stator, a rotor, a magnetic sensor, and a drive circuit. The magnetic sensor and the drive circuit are accommodated in a case, and sealed with moisture-proof sealing resin, thereby forming a drive circuit unit, which is built in the brushless motor.01-28-2010
20090033181AC generator for vehicles - According to an AC generator for vehicles of the present invention, a terminal mount includes an L-shaped support having a radial extension, in which a metal terminal is contained and which radially extends about a rotary shaft of a rotor, and an axial extension, which extends from an end of the radial extension toward a rear cover along the rotary shaft, and at least one first guide molded integral with the L-shaped support. A radiating fin includes a second guide having a shape corresponding to a shape of the first guide. One of the first guide and the second guide is inserted into the other of the first guide and the second guide.02-05-2009
20110050051MOUNTING STRUCTURE AND MOTOR - A mounting structure 03-03-2011
20120013226INTERFERENCE SUPPRESSION ARRANGEMENT FOR AN ELECTRIC MACHINE - An anti-interference system (01-19-2012
20100066215Control Servo - A control servo includes a supporting frame, a motor, a driving shaft and a control slider. The supporting frame comprises a mount and a slider housing, wherein the motor is supported in the mount of the supporting frame. A driving gear is provided at an output end of the motor. The driving shaft is positioned longitudinally through the slider housing. A driven gear is provided at one end of the driving shaft to mesh with the driving gear. The driving shaft penetrates through the control slider while an upper portion of the control slider extends out of the slider housing. An electric brush is provided underneath the control slider. The control servo eliminates the use a potentiometer as installed in a traditional servo and the reduction gearbox so that the structure is simpler and lighter; thus it plays an important part in the miniaturisation of model aircraft.03-18-2010
20120133250 Synchronous Electric Motor - The invention relates to a body (05-31-2012
20120212111ELECTROMAGNETIC DAMPER FOR ROTATING MACHINES - Electromagnetic damper (08-23-2012
20090058234COIL-LESS MOTOR - A coil-less motor includes an insulator disk, a plurality of magnets, a plurality of electromagnets, a casing, and an electromagnetism circuit. The magnets are uniformly embedded in the insulator disk, and the electromagnets are mounted to an inside surface of the casing. The electromagnetism circuit includes an electromagnetic switch comprising a PNP contact controlling the supply of an external electrical power to a predetermined node and further to the electromagnets to induce magnetic polarity for causing magnetic repulsion, and cutting off the power supply by the electromagnetic switch induces magnetic attraction, so that the insulator disk is rotated by the magnetic attraction and repulsion caused between the electromagnetism generated by the electromagnets and the magnets inside the insulator disk. The kinetic energy of the rotating insulator disk is outputted through the rotary shaft to realize the function of a motor.03-05-2009
20100026146Electrical Motor - An electrical motor includes: a rotor; a stator including a stator core that is formed with a plurality of first slot units and a plurality of second slot units which are alternately disposed with the first slot units, each of the first slot units including at least two first slots, each of the second slot units including at least two second slots, the stator core being further formed with a plurality of first poles each disposed between the first slots of a respective one of the first slot units, and a plurality of second poles each disposed between the second slots of a respective one of the second slot units, the depth of each first slot being deeper than that of each second slot; a first winding that is wound on the first poles; and a second winding that is wound on the second poles.02-04-2010
20120262035ADAPTOR, ASSEMBLY OF BATTERY PACK AND ADAPTOR, AND ELECTRIC TOOL WITH THE SAME - When a battery pack having an output voltage of 14.4 V that is connectable to an electric tool in a sliding manner is used as a power supply source for the electric tool that is connectable to a battery pack in an insertion manner and has a rated voltage of 12 V, the electric tool and the battery pack are connected to each other with an adaptor interposed therebetween. The adaptor has an FET that is switched at a predetermined duty of a predetermined frequency. The battery pack and the electric tool are connected or disconnected to or from each other by the switching operation, thereby dropping the output voltage of the battery pack. When the detected voltage is out of a predetermined value range, it is judged that the overcurrent or overdischarge has occurred. Then, the FET is turned off to stop the electric tool.10-18-2012
20120319543MOTOR - A motor includes a cover made of a resin material. The cover includes a first annular portion arranged to extend in an annular shape above coils, a side wall portion arranged to extend downward from an outer circumferential portion of the first annular portion, and a second annular portion arranged to extend radially outward or radially inward from a lower end portion of the side wall portion along an upper surface of a circuit board. The side wall portion is arranged to extend in an axial direction while filling in gaps between teeth on a radially inner side of radially outer end surfaces of the teeth. The coils are covered by the cover to be protected from dust, water droplets, etc. The radially outer end surfaces of the teeth are exposed from the cover, and are thus arranged to be in radial proximity to a rotor magnet.12-20-2012
20130119835MOTOR AND ELECTRONIC DEVICE COMPRISING THE SAME - A motor comprising a stator having a plurality of magnetic poles disposed in a circumferential direction along an outer periphery thereof, a rotor disposed rotatably around the outer periphery of the stator, and a magnet disposed in a circumferential direction along an inner periphery of the rotor. The stator is formed by laminating sheet-like plates. A plurality of the sheet-like plates including an outermost layer of this laminated body comprises a flat portion substantially perpendicular to the magnet, and an extended portion bent to a direction substantially parallel to the magnet. A part of the sheet-like plate having the extended portion disposed to the outermost side is formed into a thickness smaller than thicknesses of the other parts.05-16-2013
20080224576Energy efficient generator - A shell containing axles, magnets, electronics and diodes that provide for a more efficient generation of electricity. A tubular shell containing a spinning axle, fitted with magnets, magnetic bearings, computer to regulate and control generation functions provides power generation at a higher output to input power ratio than previously seen.09-18-2008
20120274186INSULATING CAP FOR AN END WINDING OF AN ELECTRICAL MACHINE WORKING AT HIGH VOLTAGE AND MACHINE HAVING SUCH AN INSULATING CAP - An insulating cap is provided for an end winding of an electrical machine working at a high voltage, the end winding including a plurality of insulated winding bars protruding from respective winding slots and electrically conductively connected to one another in pairs at their ends so as to form a plurality of electrical connections. The cap includes an opening allowing the insulating cap to be pushed over a region of one of the electrical connections such that the insulating cap insulates an outside of the electrical connection. An interior includes a layer configured to gradually dissipate a high electrical field in the region of the electrical connection to an outside of the insulating cap, the outside of the insulating cap being at earth potential.11-01-2012
20100314974Miniature Motor - A miniature motor includes a base having a layout layer with two faces spaced along an axis. The layout layer includes a coil unit. The base further includes an outer layer provided on one of the faces of the layout layer. A shaft seat is provided on the base. A rotor includes a shaft and a permanent magnet. The shaft is coupled to the shaft seat and rotatable about the axis. The permanent magnet is aligned with the coil unit. An air gap is formed between the permanent magnet and the outer layer of the base. The coil unit is integrated into the base such that the coil unit is outside of the air gap. The axial height of the miniature motor is reduced, and the structure of the miniature motor is simplified.12-16-2010
20130193814MOTOR HAVING HOLDER OF FLEXIBLE PRINTED CIRCUIT BOARD AND ACTUATOR USING SUCH MOTOR - A motor includes a rotor, a stator, an excitation coil, and a holder disposed on an outer side of the stator to hold a flexible printed circuit board supplying drive power, wherein the holder includes a main body mounting the flexible printed circuit board thereon, a bridging portion disposed along one of long sides on a first face a of the main body to form a first opening allowing the flexible printed circuit board to be inserted therethrough, and an engaging portion disposed along each of short sides on a second face of the main body to removably fit with a part of a terminal block of the excitation coil.08-01-2013
20110309725WIRING COMPONENT OF ROTATING ELECTRICAL MACHINE FOR VEHICLE - A wiring component of a rotating electrical machine for a vehicle, includes a segment wire provided at the rotating electrical machine formed in an annular shape, made of a conductive wire rod and arranged in a circumferential direction of the rotating electrical machine, wherein the segment wire includes a main body portion having a first straight portion, a second straight portion formed at each end portion of the main body portion by bending in a radial direction of the rotating electrical machine so as to have an obtuse angle between the first straight portion and the second straight portion and an upright portion formed at the second straight portion by bending in a rotational axis direction of the rotating electrical machine, and wherein the upright portions of the segment wires being adjacent to each other are in conduction with each other.12-22-2011
20130187518SOLENOID COIL WITH REVERSE TURN - A solenoid arrangement includes a plunger configured to move in an axial direction and a coil wound radially outward from the plunger. The coil includes a first winding layer and at least one additional winding layer positioned radially outward from the first winding layer. The first winding layer includes a first portion wound in a first winding direction and a second portion wound in a second winding direction that is opposite the first winding direction. The at least one additional winding layer is wound in the second winding direction radially outward from both the first portion and the second portion of the first winding layer..07-25-2013
20130200759MOTOR WITH POWER-GENERATION COIL MODULE - A motor with power-generating coil module includes: a base that has a shaft tube, a supporting surface surrounding the shaft tube, a first coil module mounted on an outer circumferential surface of the shaft tube, and a second coil module disposed above the supporting surface; a rotor that has a carrier extending a lateral wall toward the base, a shaft rotatably coupling with the shaft tube, and a magnetic member mounted on the lateral wall and having an axial extension and a radial extension, with a first magnetic face on the axial extension and facing the first coil module and a second magnetic face on the radial extension and facing the second coil module; a driving circuit electrically connecting with one of the first and second coil modules; and a power-storing unit electrically connecting with the other one of the first and second coil modules.08-08-2013
20130026888MOTOR - In a motor, a magnetic sensor is provided on the lower surface of a substrate disposed above a magnetic sensor. On an upper surface of the substrate, a plate-shaped magnetic member is disposed at a position axially overlapping the magnetic sensor. The substrate and the magnetic member are fixed to each other at a plurality of fixing positions by axial tightening. On the upper surface of the magnetic member, a rib extending to connect the vicinity of one fixing position and the vicinity of another fixing position is provided. Flexure of the magnetic member is significantly reduced and prevented by this rib. For this reason, the direction of the magnetic flux of a magnet is concentrated on the magnetic sensor side. As a result, detection accuracy of the magnetic sensor is significantly improved.01-31-2013
20080258584MOTOR AND CONTROL CIRCUIT THEREOF - A control circuit of a motor includes at least two sensor chips and at least two winding sets. The sensor chips are electrically connected to each other, and each of the winding sets has a first winding and a second winding. The first end of the first windings and the first end of the second windings are electrically connected to each other, and the second end of the first windings and the second end of the second windings are electrically connected to the sensor chips correspondingly. In addition, a motor having the control circuit is also disclosed.10-23-2008
20080258583Electric Machine Comprising a Claw-Pole Stator and Claw-Pole Stator Metal Sheet - The invention relates to an electric machine comprising a rotor, a claw-pole stator (10-23-2008
20090021121ELECTRICAL MACHINE - The invention relates to an electrical machine with a stator and a rotor, the rotor having a winding system (01-22-2009
20090284104BUILT-IN MOTOR, IN PARTICULAR A BUILT-IN TORQUE MOTOR - The invention relates to a built-in motor (11-19-2009
20100102681Rotating electrical machine - A rotating electrical machine includes a stator formed by disposing coils of a plurality of phases in a plurality of slots formed along an axial direction of a stator core; a rotor rotatably provided on an inner peripheral side of the stator; and a rotation position detector for detecting a rotation position of the rotor disposed on the one axial end side of the stator core.04-29-2010
20130038181BRUSHLESS ELECTRIC MACHINE - The brushless electric machine includes a first drive member (02-14-2013
20100109491Motor structure with rotation detector - A casing of a motor with resolver includes a stator, a motor shaft rotatably supported by a bearing, a motor rotor integrally rotatable with the motor shaft, and a resolver for detecting a rotation angle of the motor rotor. The resolver includes a disc-shaped resolver stator held on the motor casing and having a surface on which a thin-film-shaped coil is formed, and a disc-shaped resolver rotor provided on an end face of the motor rotor and having a surface on which a thin-film-shaped coil is formed. Part of the motor casing holding the outer periphery of the resolver stator is formed as a shield portion cylindrically protruding along the outer periphery of the resolver rotor to the rotor. The motor casing and the shield portion are each made of a non-magnetic conductive material.05-06-2010
20100109490METHOD FOR MOUNTING AN ANGLE MEASURING DEVICE ON AN ELECTRIC MOTOR - In order to connect an angle measuring device to a brushless direct-current motor, a coupling is used, the coupling halves (05-06-2010
20130088127METHOD AND STRUCTURE OF WINDING OF STATOR FOR ROTATION DETECTOR, AND ELECTRIC MOTOR COMPRISING ROTATION DETECTOR04-11-2013
20130088126OPTICAL ENTIRE-CIRCUMFERENCE ENCODER AND MOTOR SYSTEM - An optical entire-circumference encoder includes a substrate. A light source is disposed on a rotation axis and a first surface of the substrate. A disc, rotatable about the rotation axis, is disposed on a second surface of the substrate. The disc includes first and second rotation tracks each including rotating slits. A light guiding unit radially guides light from the light source toward an entire outer circumference of the disc to the first and second rotation tracks. The light guiding unit includes a first light guiding section and second light guiding sections. The first light guiding section includes a ring-shaped surface directly or indirectly opposed to a rotation track. The first light guiding section radially guides the light out from the ring-shaped surface toward the first rotation track. The second light guiding sections guide part of the radially guided light to the second rotation track.04-11-2013
20100327708OVERLOAD PROTECTION DEVICE FOR MOTOR - An overload protection device includes a chassis, a motor, a pair of resilient members, and at least one of electrode. The motor is received in the chassis and includes a stator having a spiral groove defined on the stator and a pair of electrical conductive contacts attached on the stator, a rotor rotatably received in the stator at one end and protruding from the stator at another end. The resilient members are positioned between the chassis and two opposite ends of the motor. The at least one friction bump is attached on the inner side of the chassis and frictionally engaged in the spiral groove of the motor. The electrodes are separately attached on the inner side of the chassis and electrically coupled to electrical conductive contacts of the motor for supply power.12-30-2010
20130049552REDUCING ANGULAR CLEARANCE BETWEEN A MOTOR SHAFT AND AN ANGULAR POSITION SENSOR - An electric motor assembly includes a motor shaft rotatable about a longitudinal axis, an angular position sensor, and a deformable pin. The motor shaft has an axial keyway formed therein, and the axial keyway has a nominal keyway dimension. The angular position is coupled to the motor shaft to rotate with the motor shaft. The angular position sensor has an axial key to fit within the axial keyway of the motor shaft, and the axial key has a nominal key dimension that is less than the nominal keyway dimension. The deformable pin is located in the axial keyway under compression between the axial key and the motor shaft to inhibit rotational shifting of the angular position sensor relative to the motor shaft.02-28-2013
20090302718ROTOR STRUCTURES FOR MOTOR - A rotor structure for a motor comprising a rotor having an end surface; a shaft extending from the end surface; an encoder member attached to the end surface of the rotor; and a coupler coupled to the shaft adjacent to the encoder member for coupling a further member to the shaft, in which the coupler surrounds the shaft and has a lip associated therewith, the lip extending from the coupler towards the encoder member so as to define a void between the coupler and the encoder member. The void defined by the rotor structure may act to contain matters such as swarf that is ejected from the rotor when the encoder member is fixed to the rotor. The rotor may be used in a motor of an electric power assisted steering (EPAS) system.12-10-2009
20090302719BRUSHLESS MOTOR - A Hall element is placed under an outside rotor at an identical angular position to a centerline between two adjacent outer teeth. This structure allows narrowing a dead band of the Hall element when it senses a leakage magnetic flux.12-10-2009
20130057119ROTARY ELECTRIC MACHINE - A rotary electric machine according to an aspect of an embodiment includes a detector and a brake. The detector is provided at the counter-load side of a shaft for rotating along with a rotor to drive a predetermined load and detects the rotation position of the shaft. The brake is exchangeably provided at the outer circumferential side of the detector to control the rotation of the shaft.03-07-2013
20090091217DIRECT-DRIVE BUILT-IN MOTOR WITH SPECIAL SENSOR ATTACHMENT - The aim of the invention is to simplify and to secure the mounting and adjusting of sensors on built-in motors. As a result, a direct drive built-in motor is equipped with a first motor component (04-09-2009
20090091216Adjustment Drive of a Motor Vehicle - The invention relates to an adjustment drive of a motor vehicle, wherein the adjustment drive includes a drive motor having a motor magnet that generates a magnetic exciter main field and having a motor armature that is rotatably arranged between a plurality of magnet poles of said motor magnet. The adjustment drive also includes a magneto-sensitive sensor positioned in such a way that during a rotation of the motor armature it senses a change in a magnetic flux density of the exciter main field.04-09-2009
20120223623MOTOR AND MOTOR FOR ELECTRIC POWER STEERING - A motor has a motor body and a control unit, which is joined to the motor body. A resolver is connected to the control unit through a flat cable. The flat cable is arranged such that the width direction of the flat cable corresponds with a circumferential direction of the motor body. The flat cable extends outwardly in a radial direction of the motor case.09-06-2012
20130162114DRIVE - A drive with a motor and devices for coupling the motor to a driving object. The coupling devices include a centrifugal mass which is movable by the motor, and an impact stop, which is connected to the driving object, for the centrifugal mass.06-27-2013
20130162112Motor-Gear Unit - What is disclosed is a motor/transmission unit for a bicycle which is directly fastened or flange-mounted to a bottom bracket housing, in particular a standard bottom bracket housing. The standard bottom bracket housing is arranged between the motor/transmission unit and a chain ring. A part—in particular casing—of the motor/transmission unit which is integrally connected to the frame may be fastened or flange-mounted to the standard bottom bracket housing in accordance with the International Standard Chain Guide Mount (ISCG).06-27-2013
20090236951SWITCHED RELUCTANCE MOTOR - The present invention relates to a switched reluctance motor which includes a housing, a stator and a rotor received and installed within the housing, and a rotor position detecting unit that detects a rotational position of the rotor at an outer side of the housing. Assembling can be quickly and easily performed, a sensor can be easily repaired and checked, and a bad influence on the sensor by temperature and dust can be reduced.09-24-2009
20090009038Fan with failure detecting function - A fan with failure detecting function includes a power input terminal, a current limiting resistor, a light emitting diode (LED), and a fan motor. The power input terminal is coupled to the anode of the LED via the current limiting resistor. The cathode of the LED is coupled to one terminal of the fan motor, another terminal of the fan motor is grounded.01-08-2009
20110031851ELECTRIC MOTOR - A shaft is adapted to be inserted through a circuit apparatus without a need for disassembling a shaft side sensor device from an end part of the shaft to place the shaft side sensor device in an opposed relationship to a circuit board side sensor device at a location adjacent to the circuit board side sensor device. The shaft side sensor device forms a sensor apparatus in cooperation with the circuit board side sensor device to sense a rotational angle of the rotor.02-10-2011
20120286629MODULAR ROTATIONAL ELECTRIC ACTUATOR - A modular rotational electric actuator includes an output housing and internal drive components that include integrated control electronics, a torque sensor, and a portion of a joint assembly. The joint assembly includes a joint connector coupled to the internal drive components, including integrated control electronics, e.g., by a resilient member. The resilient member elastically couples the joint connector to a portion of the output housing, the joint connector including a portion that extends outward therefrom.11-15-2012
20090309463BRUSHLESS ELECTROMECHANICAL MACHINE - An electromechanical machine having a stator and a rotor, the stator including at least one stator module of N toroid shaped electromagnets, the electromagnets arranged along an arc a predetermined distance apart defining a stator arc length. Each of the electromagnets has at least one gap. The rotor includes a disc adapted to pass through the at least one gap. The disc includes a plurality of permanent magnets spaced side by side about a periphery thereof and arranged so as to have alternating north-south polarities. The permanent magnets are sized and spaced such that within the stator arc length the ratio of permanent magnets to electromagnets is N+1 to N, where N is the number of electrical excitation phases applied to the electromagnets.12-17-2009
20110285253Motor with rotor-mounted control circuitry - A rotating electromechanical machine has a rotor having at least one current-carrying winding and at least one rotor-mounted sensor configured to sense a machine property or parameter during machine operation. Rotor-mounted circuitry dynamically modifies at least one property of the current-carrying winding during machine operation in response to the sensed machine property or parameter.11-24-2011
20110285252Motor with rotor-mounted control circuitry - A rotating electromechanical machine has a rotor having at least one current-carrying winding and at least one rotor-mounted sensor configured to sense a machine property or parameter during machine operation. Rotor-mounted circuitry dynamically modifies at least one property of the current-carrying winding during machine operation in response to the sensed machine property or parameter.11-24-2011
20130162113INSTALLATION OF A RESOLVER IN A ROTATING ELECTRICAL MACHINE - A rotating electrical machine includes a rotation shaft rotatably installed in a bearing that includes a portion secured onto the shaft and a portion removably attached to a supporting surface connected to a casing. The supporting surface includes an axial abutment for the bearing and a passageway traversed by the shaft. A resolver of the machine includes a resolver stator connected to the casing, and a resolver rotor having a diameter less than that of the passageway. The resolver rotor is attached to the shaft on an opposite side of a drive rotor relative to the bearing. A longitudinal position of parts installed on the shaft is determined such that, during installation, a transverse face of the bearing reaches an entrance of a cavity of the resolver stator before a transverse end of an external radial wall of the resolver rotor of the resolver reaches the entrance of the cavity.06-27-2013
20110285254SELF-STARTING ELECTROMOTOR - A self-starting electromotor having a stator and a rotor, the stator including at least one stator module of N toroid shaped electromagnets, the electromagnets arranged along an arc a predetermined distance apart defining a stator arc length. Each of the electromagnets has at least one gap. The rotor includes a disc adapted to pass through the at least one gap. The disc includes a plurality of permanent magnets spaced side by side about a periphery thereof and arranged so as to have alternating north-south polarities. The permanent magnets are sized and spaced such that within the stator arc length the ratio of permanent magnets to electromagnets is N+1 to N, to where N is the number of electrical excitation phases applied to the electromagnets.11-24-2011
20110291532CORELESS ELECTROMECHANICAL DEVICE - A coreless electromechanical device having a first and second member which are movable relative to each other, includes: a permanent magnet disposed on the first member; an air-cored electromagnetic coil disposed on the second member; and a coil back yoke which, being disposed on the second member, has a stacked structure, wherein the electromagnetic coil is disposed between the permanent magnet and coil back yoke, the electromagnetic coil has an active coil region, in which a force causing the first member to move relatively in a movement direction is generated in the electromagnetic coil, and coil end regions, and the coil back yoke covers the active coil region, but does not cover the coil end regions.12-01-2011
20100084950BRUSHLESS MOTOR STATOR - A brushless motor stator is provided that may be applied to a plurality of types of motors having different rotational speeds, merely by providing one type of a circuit substrate. A pair of fitting convex portions that project radially outside of a virtual circle centering on a center line C are formed on one insulator divided body of a slot insulator. Three pairs of diagonally located fitting concave portions are formed in an inner circumferential wall portion surrounding a through-hole of a circuit substrate. The pair of fitting convex portions of the one insulator divided body are fitted in one of the three pairs of fitting concave portions. With this, a positional relationship between three hall elements and stator magnetic poles is selected, corresponding to the speed range of a motor to be used.04-08-2010
20090179529RESOLVER, MOTOR, POWER STEERING APPARATUS AND METHOD OF MANUFACTURING THE RESOLVER - A resolver includes a stationary unit centered about a center axis, and a rotary unit disposed inside or outside the stationary unit to be rotatable around the center axis with respect to the stationary unit. The stationary unit includes teeth radially arranged around the center axis, and an insulator covering surfaces of the teeth. The stationary unit further includes output coils formed on the teeth by winding at least one of two output wires around each of the teeth via the insulator in a first number of turns and in multiple layers, and excitation coils formed on the teeth by winding an excitation wire around the output coils in multiple layers and in a second number of turns less than the first number of turns.07-16-2009
20080211356MOTOR - A motor includes a housing having a substantially cylindrical shape accommodating therein a stator portion and a rotor portion. The housing includes a housing body having an opening at an upper side thereof, and a lid portion arranged between an armature and a sensor so as to close the opening of the housing body. Since the lid portion is made of a magnetic material and is arranged between the armature and the sensor, a magnetic effect on the sensor caused by a magnetic force generated at the armature is minimized. By virtue of such configuration in which the lid portion of the housing functions as a magnetic shield, the motor can be smaller in the axial direction compared with a configuration in which an extra layer of magnetic shield is arranged.09-04-2008
20090261693Shaft Support System For Electric Motor, Electric Motor And Method For Making Same - A shaft support system 10-22-2009
20110140583Motor - Disclosed is a motor. The motor includes a rotor case, a ring member mounted on the rotor case and including an encoder on a bottom surface thereof extending outside of the rotor case, and an encoder sensor detecting speed information of the rotor case from the encoder such that the rotor case rotates at low speeds enabling a LightScribe operation.06-16-2011
20090167121POSITIONING MECHANISM OF RESOLVER AND ELECTRICALLY -DRIVEN POWER STEERING APPARATUS - In the power steering apparatus, of the present invention, bobbins and a bus ring holder are coupled and fixed to a stator so as to be positioned at constant circumferential positions with respect to the stator, and a resolver stator is held by a groove portion of a bus ring holder so as to be positioned at a constant circumferential position with respect to the stator. A resolver rotor is positioned at a constant circumferential position with respect to a rotor.07-02-2009
20100102682MOTOR MODULE - A motor module includes a bearing housing having a loading base, an electric unit, a bearing, and a magnetic rotor unit disposed on the bearing. In addition, a protruding portion is extending from the loading base, and the electric unit includes a printed circuit board (PCB) and sensing elements, wherein the PCB is utilized for disposing the loading base thereon. Moreover, signal circuits and motor windings are formed on the PCB around the loading base, the sensing elements are disposed around the motor windings, and the bearing is disposed at the protruding portion. Besides, the magnetic rotor unit is disposed on the motor windings, keeping a gap with the PCB; therefore, when electric current passes the motor windings, the magnetic rotor unit and the motor windings generate a flux linkage induction, so as to drive the magnetic rotor unit to rotate relative to the PCB.04-29-2010
20080238267Encoder arrangement on a direct current motor - An encoder arrangement of a direct current motor, having an encoder housing, an encoder disk, a circuit board arranged perpendicular in reference to an motor shaft with an optic sensor encompassing the encoder disk in a U-shaped manner, and a connection plug aligned parallel to the motor shaft. The encoder arrangement allows a simple, economical, reliable, and precise assembly, requiring little construction space, and protecting the encoder arrangement from contaminations. The circuit board is provided with accepting slots for connectors, with contact surfaces of the circuit board being arranged partially around the accepting slots and an electric contact is made between the connectors and the contract surfaces. The encoder housing comprises an encoder housing ring and an encoder housing lid. The encoder housing ring is provided with a radial recess, which is arranged in the area of the connector plug. The optical sensor is arranged on the circuit board at the side of the connector plug, and is provided with an accepting slot for the encoder disk, which accepting slot being open towards the motor shaft on which the encoder disk is mounted. The accepting slots are open on the side of the direct current motor opposite the connection plug and towards the edge of the circuit board.10-02-2008
20080290761Interface Module for Arranging in or on a Motor - Temperature or vibration sensors (11-27-2008
20080290762Rotor and an Electrical Machine Comprising Such a Rotor11-27-2008
20080309204CIRCUIT BOARD AND BRUSHLESS MOTOR USING THE SAME - A circuit board is used for allowing an electric current to conduct to a position detection unit and a stator having a winding for generating rotating magnetic fields for a brushless motor. The circuit board includes a winding connection portion that connects ends of the winding to the circuit board; and a first terminal portion electrically connected to the position detection unit installed outside of a circumferential surface of the circuit board.12-18-2008
20080211357MOTOR - A motor includes a sensor which magnetically detects an angular position centered about a central axis of a rotor core with respect to an armature. The sensor preferably includes a yoke which has a substantially annular shape, is made of a magnetic material, is arranged substantially perpendicularly to the central axis and is affixed to a shaft, a sensor magnet affixed at the yoke, a magnet cover which covers a surface of the sensor magnet other than a portion in contact with the yoke, a first Hall element and a second Hall element both of which are arranged facing in an axial direction a surface of the sensor magnet opposite from a surface thereof at which the yoke is arranged. Since the sensor magnet is covered by the yoke and the magnet cover, even when the sensor magnet is damaged, the damaged sensor magnet is prevented from damaging other components of the motor. By virtue of such configuration, the reliability of the motor is improved.09-04-2008
20090315433Kit servomotor - A kit servomotor consists of an electromotor and a rotary encoder. The electromotor has a motor stator (12-24-2009
20080284288ELECTRIC ROTATING MACHINE FOR VEHICLE - An electric rotating machine for a vehicle capable of reducing influence of leakage flux on a turning angle detector as much as possible and detecting a turning angle more accurately is provided. The electric rotating machine for a vehicle includes: a rotor core 11-20-2008
20080246373GENERATING ELECTROMAGNETIC FORCES - An electromagnetic actuator includes a body having a rotational axis, a first pole adjacent an end facing surface of the body, and a second pole adjacent a lateral facing surface of the body. The poles are adapted to communicate magnetic flux with the body. The body, the first pole, and the second pole define an axial magnetic control circuit. The actuator includes a plurality of radial poles adjacent the lateral facing surface of the body and adapted to communicate magnetic flux with the body. The body and the plurality of radial poles define a plurality of radial magnetic control circuits. The plurality of radial poles are adapted to communicate magnetic fluxes with the body and at least one of the first pole or the second pole. The body, the plurality of radial poles, and at least one of the first pole or the second pole define a magnetic bias circuit.10-09-2008
20080258585RESOLVER - A resolver rotor for a variable reluctance resolver includes a plurality of axially stacked rotor pieces. The rotor pieces are jointly fitted into one body. In the fitting of the rotor pieces, deformed portions are provided between a center of the radial thickness of the resolver rotor and a side surface thereof which is opposite to a stator-side surface thereof. The number of deformed portions is the same as that of projecting poles of the resolver rotor. The deformed portions are arranged at circumferential positions of peaks of the respective projecting poles. At those positions, concave portions are provided on the side surface to receive deformations caused by fitting the rotor pieces together. Thus, the stator-side surface of the resolver rotor is less affected by fitting of the rotor pieces together, preventing a reduction in the detection accuracy of the resolver.10-23-2008
20080258582Switching Flap Device - An actuating device for actuators, such as switching, throttle or swirl flaps, in internal combustion engines for motor vehicles comprises a shaft connected with an actuating motor. The shaft is connected with an actuator, such as a switching flap or the like. In a predetermined position relative to the shaft two pin-type magnets are arranged and preferably connected with a partly toothed gearwheel. When the shaft is rotated, the pin-type magnets move relative to a preferably fixed magnetic field sensor. The magnetic field sensor is a linear Hall sensor. Provision of a linear Hall sensor allows three different shaft positions to be determined. The positions are the two shaft positions defined by the pin-type magnets in which the magnets are arranged opposite the Hall sensor, and a position in which the location of the pin-type magnets does not allow the Hall sensor to detect a magnetic field. In the latter position the linear Hall sensor has a defined bridge voltage.10-23-2008
20130119831STARTER - Starter for vehicle-use engine which can detect a rotational speed signal in a stable manner even when a clutch cover is mounted on an outer periphery of a clutch outer of a one-way clutch. The starter D for a vehicle-use engine which transmits a rotational drive force of a stator to a ring gear of a crankshaft by a pinion of the starter includes: a one-way clutch which is arranged between the pinion and an armature shaft of the stator; and a rotational speed detection device which detects a rotational speed of the pinion. A part to be detected for a rotational speed is formed of through holes formed on a circumference of the clutch cover, and a circular circumferential groove formed on an outer peripheral surface of a clutch outer along the circumference on which the through holes are formed.05-16-2013
20130119832ROTATING ELECTRICAL MACHINE - A rotating electrical machine includes: a frame including a first housing portion for housing an electronic component and a second housing portion formed integrally with the first housing portion for housing a rotator and a stator; and a bracket including a first communicating hole communicating with the first housing portion and a second communicating hole communicating with the second housing portion.05-16-2013
20130119833ON-VEHICLE MOTOR INCLUDING DETECTOR FOR DETECTING STATE OF MOTOR - A motor mounted on a vehicle includes a housing; a shaft rotatably supported by the housing via a bearing; a rotor fixed to the shaft; a stator; and a detector that detects a rotational speed of the rotor. The stator includes: a stator core disposed at an outer circumferential side of the rotor to face the rotor in the radial direction along which the rotor and the stator are arranged to be adjacent each other; and a stator coil being wound around the stator core, the stator coil having a stator coil end formed at one end side of the stator coil in the axial direction. The detector is disposed between the stator coil end and the bearing that supports both ends of the shaft, and at least a part of detector is disposed to be overlapped in the radial direction with the stator coil end and the bearing.05-16-2013
20100141101SENSOR INCLUDING AN ANTI-ROTATION MECHANISM - A sensor assembly includes a main body having an outer wall member, an inner wall member, and an intermediate portion. The main body including a central opening defined by the inner wall member. The sensor assembly further includes at least one anti-rotation mechanism formed on the inner wall member. The at least one anti-rotation mechanism is adapted to deflect radially toward the outer wall member upon engagement with a component to be sensed. Upon deflection, the at least one anti-rotation mechanism fixedly secures the sensor assembly to the component to be sensed.06-10-2010
20120104906BRUSHLESS DC MOTOR - A brushless DC motor including a motor casing, a stator component, and a rotor component. The stator component and the rotor component are respectively arranged inside the motor casing. The rotor component includes a rotor iron core and a rotating shaft supporting the rotor iron core. A shaft extension end of the rotating shaft is arranged with a magnetic ring. One end of the motor casing is provided with an end cover. The center of the outer end surface of the end cover is provided with a groove. The magnetic ring is arranged inside the groove. A Hall induction device is arranged outside the groove and close to the magnetic ring. The motor is reasonably structured, compact, cost-effective, installation friendly, and highly reliable.05-03-2012
20120104905THREE-PHASE ELECTRIC MOTOR WITH A LOW DETENT TORQUE - The disclosure relates to a three-phase electric motor that uses high magnetic energy permanent magnets and that has a low detent torque. The motor consists of a rotor with N pairs of poles and of a stator portion with teeth extending radially from an annular gear. The teeth have windings and the ends thereof comprise an arc of circle, the middle of which is located on a radius R05-03-2012
20120104904MOTOR ASSEMBLY, DRIVE DEVICE FOR HYBRID VEHICLE, AND METHOD OF MANUFACTURING THE SAME - A drive device for a hybrid vehicle, the drive device includes: an input shaft and an output shaft, which are supported by a case to be rotatable around a rotation-axis; a motor, which includes a rotor integrally coupled with the output shaft and a stator fixed to the case; an input-side rotation member and an output-side rotation member, which have an annular shape; a rotation angle sensor, which detects a rotation angle of the rotor, wherein the rotation angle sensor includes: a rotating sensor member coupled with the output-side rotation member; and a fixed sensor member fixed to the case to detect an angle between the rotating sensor member and the fixed sensor member; a protrusion, which protrudes in a radial direction; a groove to receive the protrusion to be inserted; and a restriction portion, which restricts relative rotation between the rotating sensor member and the output-side rotation member.05-03-2012
20120104903BRUSHLESS DC MOTOR - A brushless DC motor including a casing, a stator assembly, a rotor assembly, a magnetic ring, and a circuit board with a Hall element. The stator assembly mounted in the casing and includes a stator core, a coil winding, and an end insulation plate. The rotor assembly includes a rotor core and a permanent magnet, and the end surface of the rotor core is coupled to a magnetic ring support. A convex support ring spaced apart from the permanent magnet is mounted on the edge of the magnetic ring support. The top of the convex support ring is sheathed with the magnetic ring and the Hall element extending out of the circuit board is located on the side of the magnetic ring. The motor minimizes the interference of the magnetic tile and improves measuring accuracy of the Hall element, all while having a simple structure, convenient mounting, and low costs.05-03-2012
20120104902OUTER ROTOR ELECTRIC MOTOR - An outer rotor electric motor includes a stator, an annular rotor and a resolver. The stator includes a stator core and a plurality of coils. The stator core has a plurality of teeth that are spaced at a specified interval in a circumferential direction. The plurality of teeth protrude radially. Each of the plurality of coils is formed by winding a wire around an outer circumference of each of the plurality of teeth. The annular rotor is disposed radially outward with respect to the stator. The resolver is disposed radially inward with respect to the stator core and includes a resolver stator and a resolver rotor. The resolver stator is mounted on the stator or a case member. The resolver rotor is mounted on the annular rotor or a support member that supports the annular rotor such that the resolver rotor opposes the resolver stator.05-03-2012
20120139395Adjusting drive for an adjustable part of a piece of furniture - The adjusting drive for an adjustable part of a piece of furniture, particularly for adjusting the height and/or the lying surface of a bed such as, e.g., a hospital bed or nursing bed, comprises a housing (06-07-2012
20090184608MOTOR FOR VEHICLE DOOR LOCK - A motor of a door lock for a vehicle comprises: a motor housing; an end cap fixed to the motor housing; and a rotation detector. The motor housing accommodates an armature including a motor shaft and a commutator. A sensor magnet is fixed to the motor shaft and the rotation detector comprises a rotation sensor fixed to a circuit board fixed to an inner part of the end cap and disposed adjacent the sensor magnet for sensing rotation of the magnet to produce a corresponding signal. A sensor connector fixed to the circuit board and electrically connected with the rotation sensor; connects to signal wires which transfer the signal to a microprocessor of the vehicle.07-23-2009
20120068580LINEAR DRIVE UNIT - A linear drive unit having a casing with top, middle and low bodies, a vertical gear, DC motor, shaft and control module. The bodies and DC motor are fitted with an O-seal. The turntable and worm are fixed at end of the shaft. A connection sit is set on the circuit wafer of the control box and has big and small contact strips, so that when the turntable is rotated, I-type conductor contacts the contact strips to generate signal connection for computation of stroke. A drive shaft is driven by the worm to rotate the worm gear cam which has a cam department that pushes L-/R-terminal for a circuit breakage, so that DC motor is stopped to control the threshold. When the cam is rotated, an inspection piece is driven to contact the circuit wafer to inspect the transmission signals, specific position and reset the specified point.03-22-2012
20120068581FAN AND MOTOR THEREOF - A motor includes a base plate, a stator, a rotor, a circuit board and a Hall element. The stator is disposed on the base plate. The rotor is disposed around the stator, and includes a rotating shaft and a magnetic assembly. The rotating shaft is extended to a center part of the stator. The magnetic assembly includes plural magnets. The circuit board is arranged between the stator and the base plate and comprises a Hall element. A first gap and a second gap are arranged between every two adjacent magnets. The first gap is in the vicinity of the Hall element, and opposed to the second gap. The distance of a vacant portion of the first gap is shorter than the distance of the second gap, thereby facilitating continuous and steady magnetic induction between the Hall element and the magnetic assembly.03-22-2012
20090251030MOTOR FOR CONTROLLER INTEGRATED ELECTRIC POWER STEERING APPARATUS AND ELECTRIC POWER STEERING APPARATUS - An apparatus is provided for obtaining a compact and inexpensive motor for controller integrated electric power steering apparatus capable of reducing a component for connection and the number of man-hours of assembly, and an electric power steering apparatus. A driving substrate having a power element is arranged in the side of a speed reduction mechanism of the inside of a case of a controller and a control substrate for controlling driving of the driving substrate is arranged in the side of a motor of the inside of the case and a resolver and a lead frame comprising connection wiring are arranged between a motor shaft direction of the control substrate and the driving substrate and an input-output terminal of the resolver is electrically connected to the control substrate. It is placed substantially coaxially in order of a motor, the controller and a speed reduction mechanism in the motor shaft direction.10-08-2009
20100176696CONTROL CIRCUIT MEMBER AND MOTOR - A control circuit member provided in a motor is disclosed. The motor includes a motor main body having a rotary shaft and a gear housing integrated with the motor main body. The control circuit member includes a circuit substrate on which a rotation detecting element is mounted and a substrate support member. The circuit substrate is accommodated in a circuit accommodating portion in the gear housing. The substrate support member supports the circuit substrate inside the circuit accommodating portion. The control circuit member is configured to be insertable into the circuit accommodating portion along the axial direction of the rotary shaft. The circuit substrate is configured to be arrangeable inside the circuit accommodating portion while being inclined with respect to the axial direction of the rotary shaft, so as to cause the rotation detecting element to approach the detector magnet.07-15-2010
20100259135SUBMERSIBLE ELECTRIC MOTOR ASSEMBLY - According to an embodiment, a submersible electric motor assembly has: a casing; an electric motor that is accommodated in the casing; and an electric insulating substance that is filled between the electric motor and the casing and has a thermal conductivity higher than that of air. The electric motor includes: a stator, a rotor that is rotated by an interaction with a magnetic field of the stator, a coil that magnetizes the stator and/or the rotor, and a shaft that is rotated by rotation of the rotor.10-14-2010
20100176695APPARATUS FOR DETECTING POSITION OF ROTATION OF MOTOR - A magnetic absolute sensor for a geared motor comprises a dipole magnet and hall elements. The dipole magnet is fixed to a hollow portion of a hollow rotor shaft. A bracket attached to an end plate of a motor housing is coaxially inserted from the rear end side of the hollow portion. The dipole magnet is inserted from the front side in a cylindrical portion of the bracket. The hall elements are arranged at an interval of 90 degree on the circular inner periphery surface of the cylindrical portion. The hall elements face the circular outer periphery surface of the dipole magnet with a fixed gap therebetween. It is not necessary to increase a motor shaft length in order to incorporate the magnetic absolute sensor. The flux of a motor driven magnet is blocked by the hollow rotor shaft and the hall elements are not adversely affected.07-15-2010
20100225207ELECTRIC MACHINE - An electric machine that includes a stator and a Hall-effect sensor. The stator includes a pair of asymmetric poles and the sensor is oriented such that the plane of the sensor is substantially parallel to armature field lines passing through the sensor.09-09-2010
20100225206POSITION SENSING DEVICE AND MOTOR USING THE SAME - A position sensing device for a motor, the motor has a stator having a coil winding, and a rotor, and the position sensing device including a fixing frame, including a first fixing portion, a second fixing portion, a third fixing portion, and a fourth fixing portion, multiple Hall components, and a PCB board. The position sensing device is connected to the stator via the first fixing portion whereby detecting a position of the rotor, the second fixing portion operates to fix a power lead connected to the coil winding of the stator, the PCB board is disposed on the fixing frame via the third fixing portion, and the Hall component is disposed on the fixing frame via the fourth fixing portion and connected to the PCB board. The invention features simple structure and is capable of being firmly connected and fixed to other electronic components such as a power lead, a PCB board and so on.09-09-2010
20100237752MOTOR AND ELECTRONIC DEVICE USING THE SAME - This motor includes a stator whereupon a plurality of magnetic poles are arranged at first prescribed intervals on the outer circumference section, and a rotor which is rotatively arranged on the outer circumference of the stator by having a prescribed space in between and has permanent magnets magnetized to different polarities at second prescribed intervals. The magnetic pole of the stator forms an extending section which extends from a magnetic pole base section in a direction parallel to the permanent magnet, and the extending length of the extending section in the direction parallel to the permanent magnet is same as that of the magnetic pole base section in the direction parallel to the permanent magnet or shorter.09-23-2010
20100225208HOLDER FOR A POSITION SENSOR - A holder for a position sensor of an electric machine. The holder includes a pocket for holding the position sensor, an abutment, and a biasing mechanism mountable to a fixture of the electric machine so as to bias the abutment relative to the fixture. Additionally, an electric machine that incorporates the holder, the electric machine including a stator against which the biasing mechanism biases the abutment.09-09-2010
20120139394Fixing Structure for the Sensor of a Ceiling Fan - A fixing structure for the sensor of a ceiling fan is disclosed. The stator of the ceiling fan has several coil arms in equal spacing for field coils to wind around. A magnetic pole spacer is formed between each adjacent two coil arms. The magnetic pole spacer has a supporting base for the disposition of a sensor to sense the position of the rotor.06-07-2012
20110057550Actuator with Integrated Equipment for Condition Monitoring and Method for Condition Monitoring and Method for Producing an Actuator - This invention relates, in the field of aviation and vehicle technology, in particular in the field of control technology, to an actuator with integrated condition monitoring system for the detection and monitoring of mechanical irregularities of individual components of the actuator and/or for the measurement of a load distribution on the actuator. This invention further relates to a method for the monitoring the condition of the actuator and a method for its manufacture. The actuators claimed by the invention can be used in actuator systems in the field of aviation control and vehicle control technology as well as in the field of power generation.03-10-2011
20090284105MOTOR WITH AN ELECTROMAGNETIC BRAKE - A motor with an electromagnetic brake is provided that is capable of sufficiently reducing influence of leakage magnetic flux on a magnetic sensor. A second ball bearing that rotatably supports a shaft at a position in the vicinity of a non-load-side end portion is configured to be ferromagnetic. An inner circumferential surface of a bearing stopper member that faces an outer circumferential surface of the shaft is disposed in proximity to the outer circumferential surface of the shaft. The bearing stopper member, which is ferromagnetic, is fixed to the second bearing holder in order to prevent the second ball bearing from getting out of a bearing fitting portion. A magnetic shield member is fixed to a portion of the shaft between the bearing stopper member and a magnetic sensor. The magnetic shield member guides leakage magnetic flux, which has been generated by an electromagnetic coil and leaked through the shaft, from the shaft to the bearing stopper member, thereby reducing influence of the leakage magnetic flux on the magnetic sensor.11-19-2009
20090039740Magnetic Bearing - Certain exemplary embodiments comprise a system, which can comprise a radial magnetic bearing static portion. The radial magnetic bearing static portion can comprise a plurality of electromagnets. The radial magnetic bearing static portion can comprise a plurality of pulse width modulated amplifiers, each of which can be adapted to provide electrical energy to a corresponding electromagnet of the plurality of electromagnets.02-12-2009
20090179528Drive Unit and Image Forming Apparatus Equipped with the Same - A drive unit includes a motor being a drive source, a velocity reduction gear for reducing the revolution of the motor, an output shaft for connecting the velocity reduction gear to the rotation shaft of a photosensitive drum, and a velocity detection mechanism including an encoder and sensor members and detecting the revolution of the output shaft. The velocity reduction gear and the velocity detection mechanism are placed in a unit housing including a housing body made of a resin with one end opened and a support plate made of metal closing the opening of the housing body, and the output shaft is rotatably supported by the housing body and the support plate.07-16-2009
20090072677MOTOR DRIVING APPARATUS - In a motor driving apparatus, an incline of boundary lines of magnetic poles with respect to a rotating shaft of a rotor and an incline in a movable direction of a magnetic detection unit with respect to the rotating shaft of the rotor are different.03-19-2009
20110031850Structure of Rotation Detector-Equipped Motor and a Manufacturing Method Thereof - A motor is provided with a rotation detector including a detection rotor and a detection stator placed to face the detection rotor. The motor further includes a motor case and a motor shaft protruding out of the motor case. The detection rotor is fixed to an end of the motor shaft. The detection rotor includes a plate and a coil provided on the plate. The plate is fixed to the end of the motor shaft. Specifically, the motor shaft includes an opening in the end. The plate has a circular disc shape and a cylindrical portion protruding in the center from the back side. The cylindrical portion is press-fitted in the opening of the motor shaft to fix the plate to the end of the motor shaft.02-10-2011
20100219725MOTOR - A motor having a sensor to detect a rotation angle that enables reduction in size and weight is provided.09-02-2010
20090108716BRUSHLESS MOTOR AND COOLING FAN - A rotor unit of a brushless motor includes a substantially cylindrical rotor magnet and a rotor holder arranged to retain an outer circumferential portion of the rotor magnet. A stator unit of the same includes a stator core around which coils are wound and a Hall IC for sensing magnetic flux generated from the rotor magnet. The stator core includes teeth disposed at positions separated in the circumferential direction, each of which has an arm portion extending outward in the radial direction around which the coil is wound, and a stretching portion extending from the arm portion outward in the radial direction and in the circumferential direction on both sides. A sensor element included in the Hall IC is positioned in the range within a lead angle of about four degrees or less as a mechanical angle in the circumferential direction from a line connecting radially the central axis and a point bisecting a line connecting neighboring stretching portions, and within a distance of about one millimeter or smaller outward in the radial direction from an arc connecting outer edges of the neighboring stretching portions.04-30-2009
20110169382RESOLVER WITH LOCATING FEATURE - A resolver is configured to determine the rotational position of a first member that is selectively rotatable about an axis with respect to a second member. The resolver includes a stator core, a plurality of wire windings operatively connected to the stator core, a winding support between the windings and the stator core, and a cover at least partially enclosing the windings. One of the cover and the winding support defines a pin that is fittable inside a hole in the second member. The pin functions as a locating feature, which ensures that the stator is accurately mounted to the second member. Because the pin is part of the winding support or the cover, the locating feature does not entail the use of an extra part, thereby simplifying assembly of the stator.07-14-2011
20100133961CONTROLLER-INTEGRATED ROTATING ELECTRICAL MACHINE - A controller-integrated rotating electrical machine includes a rotating electrical machine main body having a stator winding and a field winding and provided with a rotation detector that detects a rotation angle of a rotation shaft, a power circuit that controls a current flowing into the stator winding according to a detection output of the rotation detection portion, a field switching circuit that controls a current to flow into the field winding, and a capacitor connected in parallel with the power circuit and the field switching circuit. Both ends of the capacitor portion are connected to an external battery. The capacitor is disposed in closer proximity to the field switching circuit than the rotation detector, and connected to the field switching circuit via a common connection terminal. Noises superimposed on the rotation detection portion are thus reduced.06-03-2010
20090066197WIRELESS SIGNAL TRANSMISSION DEVICE FOR A DC BRUSHLESS CEILING FAN MOTOR - A wireless signal transmission device for a DC brushless ceiling fan motor that includes a wireless signal transmission device to receive and transmit a signal to a controlling unit, and the controlling unit transmits the control signal to the motor via an electric wire. A wireless signal-transmitting device is installed above the motor. The signal-transmitting device detects the position of the motor and transmits a wireless signal to a signal receiving device, which then transmits the signal to the controlling unit, which further transmits the controlling signal to the motor via of the electric wire, for the purpose of controlling the rotation of the motor. Due to the fact that the signal is transmitted wirelessly, it is not necessary to use any destructive process such as drilling a hole on the body of the ceiling fan, and thus the rigidity and the strength of the components are preserved.03-12-2009
20090033180Rotating Electrical Machine - A rotating electrical machine having an RF-IC chip for detecting a rotation and also having a stator and a rotor. When a compact RF-IC chip is used as the RF-IC chip, the chip can detect the rotation of the rotating electrical machine.02-05-2009
20100164333MOTOR WITH SPEED REDUCTION MECHANISM - Detecting a rotation state of a worm wheel side with good accuracy while allowing play between an armature-shaft-side coupling member and a worm-shaft-side coupling member. The armature-shaft-side coupling member is provided together rotatably to the other end of an armature shaft; the worm-shaft-side coupling member is provided together rotatably to one end of a worm shaft; the armature-shaft-side coupling member and the worm-shaft-side coupling member are coupled together rotatably; and a sensor magnet is provided together rotatably to the worm-shaft-side coupling member. Therefore, the rotation state of the worm shaft can be detected with good accuracy. Even if the play is provided between the armature-shaft-side coupling member and the worm-shaft-side coupling member, this play does not affect the accuracy of detection of the rotation state of the worm shaft, thereby bringing no problem regarding accuracy of detection of a rotation state of a worm wheel side.07-01-2010
20110241498DEVICE FOR MOUNTING A RESOLVER IN AN ELECTRIC MACHINE - An electric machine with a resolver for a system for autocontrol of the machine includes a machine stator, a machine rotor mounted for rotation in the stator, the rotor being mounted on a shaft, and a casing enclosing this assembly. The resolver includes a fixed resolver stator centred axially in a housing inside the casing and a resolver rotor mounted on the shaft of the machine rotor inside the resolver stator. The resolver stator is locked in an axially and angularly fixed position in the housing. A mounting device is included for mounting the resolver. The mounting device includes a bearing for rotational adjustment of an angular position of the resolver rotor on the shaft of the machine rotor and a device for clamping the resolver rotor and the shaft with respect to one another in a chosen angular position. The device may include a friction race.10-06-2011
20100213798ENCODER ASSEMBLY - An encoder assembly includes an encoder, a fixing cover for receiving the encoder, and a protecting cover for receiving the fixing cover. The encoder includes a main body, and a trumpet-shaped rubber collar extending from a first end of the main body. The fixing cover includes a first open end and a second open end opposite to the first open end. The second open end engages with an outer side of the rubber collar. The protecting cover includes an open end and a closed end opposite to the open end. A circular protrusion extends from an inner wall of the closed end to engage with an inner side of the rubber collar.08-26-2010
20100072864Motor Assembly with Sensor Target on Motor Rotor and Method of Forming Same - A motor assembly is provided that includes a rotor having a plurality of coaxial rotor laminations, a conductive end ring adjacent the rotor laminations that establishes an axial end of the rotor; and a target member supported by the end ring and rotatable with the rotor. A sensor is operable to monitor, for example, speed and/or angular position of the target member as the rotor rotates. A method of forming a motor assembly includes providing a sensor target and a sensor operable to determine the position of the sensor target. The method includes connecting the sensor target with a motor rotor end ring such that the sensor target is supported by the motor rotor end ring for common rotation therewith and may be sensed by the sensor. Connecting the sensor target to the end ring may be by overcasting the sensor target onto the motor rotor end ring.03-25-2010
20120242199VEHICLE DRIVING APPARATUS - In a vehicle driving apparatus including a rotating electrical machine having a rotor and a case housing a power transmission device, a second projecting portion formed on a front cover member of the power transmission device is supported rotatably relative to a first projecting portion formed on a support wall of the case via a support bearing, a positioning fitting portion is provided to position a rotor support member for supporting the rotor relative to the front cover member in the radial direction, a torque transmitting coupling portion is provided on a radial direction outer side of the positioning fitting portion to couple the rotor support member and the front cover member so as to be capable of transmitting torque, and the positioning fitting portion and the torque transmitting coupling portion are respectively disposed to overlap a rotary support portion in an axial direction.09-27-2012
20120200202DETECTION STATOR, ROTATION DETECTOR AND MOUNTING STRUCTURE THEREOF - A motor includes a rotary shaft and a motor housing internally housing the rotary shaft. The motor housing is provided with a mounting hole in a position corresponding to an end of the rotary shaft. A detection rotor is fixed to the end of the rotary shaft. A detection stator includes a detection part made of resin into a plate-like shape having a surface on which a planar coil is placed, an outer peripheral wall axially extending from an outer circumferential edge of the detection part, and a flange radially extending from the outer peripheral wall. The detection stator is placed so that a surface of the detection part faces the detection rotor and the surface of the detection part faces to the inside of the motor housing in the mounting hole, and fixed to outside of the motor housing with a screw to the flange.08-09-2012
20120200203ELECTRIC MICROMOTOR - A miniature electric motor (08-09-2012
20110254410Electric water pump - In a circuit substrate of an electric water pump, a Hall IC can be mounted on a circuit substrate at an optimum position in a stable and durable state. The electric water pump includes a motor housing, a stator constituted by a stator core covered by a resin insulator and a coil, a circuit substrate, a holder 10-20-2011
20110156545MOTOR DRIVE ASSEMBLY - A motor drive assembly has a motor, a gearbox and a control module. The control module has a printed circuit board, flat contacts formed on the PCB and a micro control unit mounted to the PCB. The flat contacts are resiliently pressed by respective motor terminals to establish electrical connection. The micro control unit comprises a data processing unit for processing signals from a sensor such as Hall sensors and a analog drive unit for operating a relay that controls the electrical connection between the flat contacts and an external power supply.06-30-2011
20090015111MOTOR ASSEMBLY FOR CEILING FAN - A motor assembly for ceiling fans includes a top cover having a plurality of protrusions extending from a top thereof, a bottom cover and a ring-shaped member connected between the top cover and the bottom cover so as to form a case. A shaft rotatably extends through the top cover and the bottom cover. A stator is fixed to the shaft and located in the case, and a permanent magnet is fixed to an inner periphery of the ring-shaped member. A light detection device is connected to the frame and includes a light detection member. A circuit board is located in the light detection device. The protrusions pass through the light detection member to block a light beam emitted from the light detection member to activate the light detection member to send a signal to the circuit board to count the revolution of the shaft.01-15-2009
20100320880BRUSHLESS MOTOR - To provide a small-sized brushless motor in which a rise in the temperature of power elements can be reduced. A stator (12-23-2010
20110095658ROTATIONAL ANGLE DETECTOR - A rotational angle detector provided with a circular rotary plate integrally rotatable with a rotor of a motor and including a circumferential surface having marks, which are spaced apart by different angular intervals in a circumferential direction. A rotational angle detection unit is arranged along the circumferential direction of the rotary plate to detect a rotational angle of each mark, rotated together with the rotary plate, in a predetermined detection zone. The rotational angle detector determines, when adjacent marks are located in the detection zone, angular intervals between the adjacent marks based on the rotational angle of each mark, specifies a mark that is located in the detection zone based on the determined angular intervals, and detects the rotational angle of the rotor based on the rotational angle of the specified mark rotating in the detection zone.04-28-2011
20100060112ENCODER WITH MOTOR - With a motor with an encoder of the invention, a stopper gap formed between a stopper formed on an outer circumferential surface of a hub of the encoder and a bearing cover of an anti-load side bracket is set smaller than an encoder gap to prevent that a rotating disk is made contact with a fixed slit even when an excessive force is applied to an output shaft of the motor with the encoder.03-11-2010
20110148258Rotation sensor and direct current motor - A direct current motor includes an armature coil having at least three phase coils, a commutator having multiple commutator segments connected to the armature coil, a pair of brushes in slidable contact with the commutator to supply power to the phase coils through the commutator, a rotation shaft, and a ring varistor coaxially fixed to the rotation shaft and having a ring-shaped varistor body and multiple electrodes that are circumferentially arranged on a surface of the varistor body. Each commutator segment is connected to a corresponding electrode of the ring varistor. The electrodes of the ring varistor are paired to form electrode pairs. Each electrode pair includes any two of the electrodes. A capacitance of one electrode pair is different from a capacitance of another electrode pair.06-23-2011
20110187242ELECTRIC MOTOR DEVICE - The electric motor device is provided. The electric motor device includes: a first drive member that has a plurality of permanent magnets; a second drive member that has a plurality of electromagnetic coils; and a clearance controller that shifts at least either one of the first drive member and the second drive member, thereby changing a size of a clearance formed between the first drive member and the second drive member.08-04-2011
20100019627BRUSHLESS DC MOTOR AND MANUFACTURING METHOD THEREOF - A brushless DC motor includes an embedded memory of a micro computer mounted on a circuit board which can be modified during and/or after a manufacturing process of the brushless DC motor. The circuit board installed on the brushless DC motor includes an IC having the embedded micro computer executing feed back control of the pulse wide modulation and the embedded memory for storing data such as control programs. The circuit board also includes a writing terminal port to which an external memory writer is to be connected. Data is transferred from the external memory writer and stored in the embedded memory by contacting the writing terminal port with a tip end portion of a cable from the external memory writer.01-28-2010
20120043862MOTOR - A motor includes a shaft, a bearing arranged to support the shaft such that the shaft is rotatable about a central axis, a rotating body fixed to the shaft and including a rotor magnet arranged in an outer circumference thereof, a stator arranged radially outward of the rotor magnet, a circuit board arranged to be perpendicular to the central axis on one axial side of the rotating body, and an encoder arranged to detect rotation of the rotating body. The encoder includes a reflection pattern arranged on a surface of the rotating body which is opposed to the circuit board, and a reflective rotation detection sensor arranged on the circuit board to detect the rotation of the rotating body by irradiating the reflection pattern with light.02-23-2012
20120206023METHOD FOR OPERATING A BUILDING CLOSURE - A method for operating a building closure having the shape of an overhead sectional door or of a garage door including at least one spring-loaded counterweight device and an electrical drive device is disclosed. A control unit simultaneously monitors the position of the building closure and a motor current for the drive device. When the building closure is in an open or a closed position, the motor current is reduced and maintained at a level to residually energize the drive device to reliably maintain the building closure in a desired position.08-16-2012
20120001523LOW VOLTAGE HIGH HORSEPOWER BRUSHLESS MOTOR ASSEMBLY - A low voltage high horsepower brushless motor assembly including a plurality of axially aligned and interconnected stator module sections, a plurality of rotor modules mounted upon a common shaft corresponding to the plurality of stator module sections, and a single rotor position feedback encoder operating the motor, wherein each of the individual stator modules include multiple phase winding circuits terminating in a plurality of studs located on an exterior of their respective housings for interconnection with a plurality of controllers.01-05-2012
20120001522Motor - A motor comprising a motor housing, a stator located within the motor housing, a rotor supported for rotation within the motor housing upon a rotor shaft, the rotor shaft being supported for rotation by bearings, and a sealing sleeve, wherein the sealing sleeve is of closed ended form and encircles the rotor, the sealing sleeve being sealed adjacent its open end to the motor housing.01-05-2012
20120062078PERMANENT MAGNET MOTOR AND WASHING MACHINE PROVIDED THEREWITH - A permanent magnet motor includes a rotor including a rotor core formed with circumferentially arranged magnet insertion holes and permanent magnets inserted into the respective magnet insertion holes, the magnets establishing in the magnet insertion holes magnetic poles corresponding to magnetic pole teeth of a stator. The magnets include a plurality of types of permanent magnets having different coercive forces and are inserted into the insertion holes respectively so that each pole corresponds to one of the types of magnets. The rotor core has a part located between the magnets adjacent to each other and having different coercive forces. The rotor core has a magnetic flux path defined in the part so as to protrude to the stator side. The magnetic sensor is configured to be relatively moved along a trajectory corresponding to the magnets and the flux path with rotation of the rotor.03-15-2012
20120206024SERVO MOTOR MANUFACTURING METHOD, SERVO MOTOR MANUFACTURING APPARATUS, SERVO MOTOR, AND ENCODER - This disclosure discloses a servo motor manufacturing method, includes a disk position adjusting that adjusts a position of a rotating disk with respect to a shaft, in a case where said rotating disk to which at least one concentric pattern is formed around a disk center is to be fixed to said shaft of a motor, wherein in said disk position adjusting, said concentric pattern is used as a scale of a linear encoder to adjust an eccentricity of said rotating disk.08-16-2012
20120013225ELECTRIC MACHINE ALIGNMENT ADAPTER - An electric machine including a stator having a body provided with at least one alignment member, and a resolver positioned relative to the stator. The resolver includes at least one alignment element. An alignment adaptor is configured to receive each of the stator and the resolver. The alignment adaptor includes an alignment system that positions the alignment member and the alignment element to establish a desired alignment between the stator and the resolver.01-19-2012
20120062077DRIVE DEVICE FOR HYBRID VEHICLE AND CASE FOR THE SAME - A drive device for a hybrid vehicle includes an input shaft, a motor having a rotor and a stator, an output shaft integrally and coaxially connected to the rotor along a rotation axis and configured so as to be engaged with and disengaged from the input shaft, a rotation angle sensor including a rotating portion and a fixed portion, which forms an angle relative to the rotating portion, and detecting a rotation angle of the rotor, and a case rotatably and axially supporting the input shaft and the output shaft on the rotation axis and accommodating the motor and the rotation angle sensor, wherein a side wall portion of the case includes an angle adjusting member coaxially supporting the fixed portion relative to the rotation axis while allowing the angle of the fixed portion to be adjustable, and a clamp member supporting a harness movably connected to the fixed portion.03-15-2012
20090295258Actuator arrangement with worm gear and rotational output - A first embodiment is an actuator arrangement having a rotational output and a motor. The actuator arrangement further includes at least one intermediate gear, an output gear, and an encoding detector. The motor has an output shaft that includes a worm gear. The output gear generates a rotational output at an axis thereof. Position encoding indicia are fixedly arranged on the output gear. The encoding detector is disposed in position to detect the position encoding indicia.12-03-2009
20110089789MOTOR DRIVE DEVICE - A motor drive device comprises a motor, a gearbox mounted to the motor and a control module. The gearbox comprises a gearbox housing that has an opening facing the motor. The motor has a shaft that extends into the gearbox housing through the opening to drive a worm gear of the gearbox. The control module has a PCB mounted to the gearbox and most of the PCB is accommodated in the opening of the gearbox housing. The PCB extends in a plane substantially parallel to the shaft.04-21-2011
20120119628ELECTRICAL MACHINE COMPRISING A ROTOR, A STATOR AND AN AIR GAP BETWEEN ROTOR AND STATOR - An electrical machine configured to operate at a power range of several MVA includes a rotor is configured to rotate about a rotor axis. The rotor includes a rotor lamination stack. A stator includes a stator lamination stack concentrically surrounding the rotor lamination stack, wherein a ring-like air gap separates the rotor lamination stack from the stator. An air gap monitoring device extends through the air gap in an axial direction and is configured to detect at least one of a change in a rotor geometry and a presence of debris in the air gap.05-17-2012
20100289387Rotation detecting apparatus and direct current motor - A rotation detecting apparatus includes a direct-current motor, a power source part, an energization detecting part, and a rotation state detecting part. The direct-current motor is configured so that an inductance between a pair of brushes periodically changes in accordance with a rotation. The power source part applies a power source voltage between the pair of brushes. In the power source voltage, an alternating-current voltage is superimposed on a direct-current voltage. The energization detecting part detects an electric quantity related to the alternating-current voltage applied from the power source part to the direct-current motor. The rotation state detecting part detects at least one of a rotation angle, a rotation direction, and a rotation speed of the direct-current motor based on a change in an amplitude of an alternating-current component in the electric quantity detected by the energization detecting part.11-18-2010
20120248946Partial Discharge Monitoring Systems and Methods - Systems and methods for monitoring partial discharge within a remotely located and inaccessible electric motor. One embodiment comprises a downhole electric motor of an electric submersible pump system positioned in a well. The motor includes a partial discharge monitoring system coupled to the motor's power terminals. The partial discharge monitoring system includes a filter subsystem, a processing subsystem, and a communication subsystem. The filter subsystem allows higher frequency signals to pass from the terminals to the processing subsystem. The processing subsystem identifies signal constituents that are associated with partial discharge, and may perform various types of processing or analyses of the signal received from the processing subsystem. The partial discharge information generated by the processing subsystem is passed to the communication subsystem, which communicates the information to remotely located surface equipment. The subsystems of the partial discharge monitoring system are configured to operate in a high-pressure, high-temperature downhole environment.10-04-2012
20100244637MOTOR AND ELECTRONIC DEVICE USING SAME - A motor comprises a stator having a plurality of magnetic poles disposed at first predetermined intervals along an outer periphery thereof, and a rotor having a permanent magnet with poles magnetized alternately to have different polarities at second predetermined intervals and disposed rotatably around the outer periphery of the stator with a predetermined gap. The magnetic poles of the stator has extended portions formed in a manner to extend from magnetic polar bases into a direction generally parallel to the permanent magnet, and the extended portions are formed of a high-permeability magnetic steel sheet with silicon content less than 3.0 wt-%.09-30-2010
20120313490Power Angle Monitor - A system and method for monitoring the rotation of a generator rotor. The monitor uses a light beam directed toward the rotor to detect a marking thereon, and generates an electrical pulse when the marking is detected. The time between the pulse and a reference point (such as a zero crossing) of the signal waveform from the terminals of the generator may be used to calculate the power angle of the generator. The system is adaptive in that it can account for new markings on the rotor. The system may be connected to a network so that power angles from various generators on the electrical network may be compared. The system may further be connected to a common time source such that a time stamp may be applied to the power angles from various generators, allowing for more accurate comparison of the power angles.12-13-2012
20120161590DRIVE DEVICE - A drive device includes a motor, a control unit, a first fastener, and a second fastener. The control unit is arranged on a side of the motor in an axis direction of the motor. The first fastener is arranged in a wall part of a cylindrical motor case of the motor opposing to the control unit, on an inner side of a peripheral wall of the motor case in a radial direction. The second fastener is tightened with the first fastener so as to connect the motor and the control unit with each other.06-28-2012
20120133249FAST ACCELERATION REACTION FORCE CANCELLING MOTOR - Particular embodiment of the invention relates to motors that produce reaction force cancellation and are thus well suited to applications where accelerations and reaction forces are relatively large. Such motors are particularly well suited to precision machinery that can benefit from fast accelerations with short settling times. In particular, the motors include movable and counter-movable motor members, where the counter-movable motor member has a reaction mass to counter the reaction force of the first movable motor member.05-31-2012
20120313491Actuating Device and Method of Operating an Actuating Device - An actuating device for displacing a control device, such as a gate valve or other control mechanism, in particular for use in oil or gas production systems, includes a motor-gear unit and a threaded spindle drive, which is operable by said motor-gear unit. The threaded spindle drive includes at least a threaded spindle and a screw nut. The threaded spindle is displaceable in an essentially axial-direction so as to displace the control device between an advance position and a retracted position. The threaded spindle drive further includes a position holding means holding the attained position of the threaded spindle. The position holding means is directly connected to a motor shaft of the motor-gear unit so as to apply a holding torque to said motor shaft.12-13-2012
20120176007ELECTRIC MACHINE DEVICE, ACTUATOR USING THE SAME, MOTOR, ROBOT, AND ROBOT HAND - An electric machine device includes: a rotor including a rotor magnet arranged along the outer circumference of a center shaft; a stator arranged on the outer circumference of the rotor; a rotating mechanism coupled to the rotor and used for transmission of rotation driving force; and a load connecting section that connects the rotating mechanism and a load. In the rotor, a housing space that is opened on one side in an axis direction of the center shaft and houses at least a part of the rotating mechanism is formed between the center shaft and the rotor magnet. The rotating mechanism includes: an input section connected to or formed integrally with the rotor; a fixed section connected to or formed integrally with the stator; and an output section connected to or formed integrally with the load connecting section. The rotting mechanism functions as a speed-increasing gear or a reduction gear.07-12-2012
20120176006ELECTRIC MACHINE HAVING INTEGRATED RESOLVER - An electric machine that includes a stator and a rotor. The rotor includes a shaft and a lamination assembly coupled to the shaft and is configured and disposed to rotate relative to the stator, the rotor lamination assembly including a plurality of laminations that define an outer periphery having an outer surface and an inner surface. The electric machine also includes a resolver rotor coil at least partially radially inwardly disposed of the inner surface and formed in the rotor lamination assembly and a resolver stator located between the resolver rotor coil and the shaft.07-12-2012
20100270893Electric Motor for Operating a Shutter Element or Solar Protection Element in a Building - An electric motor (10-28-2010
20100301712Wheel Motor with Rotating Stator - An in-wheel motor having an inner stationary portion (the stator), and an outer rotating portion (the rotor) that rotates around the stator and drives a wheel directly attached to the rotor. The stator may comprise an inner support structure around which a plurality of magnets having windings are disposed in a circumferential fashion. The rotor circumferentially surrounds the stator, and includes permanent magnets placed at an interval along a surface of the rotor. An intermediate layer between the rotor and the stator is comprised of a bearing that allows movement of the rotor relative to the stator. By attaching a wheel directly to the outer surface of the rotor, a compact and efficient wheel-mounted electrical motor may be provided.12-02-2010
20120262033MOTOR ROTOR AND METHOD FOR MANUFACTURING MOTOR ROTOR - A motor rotor and a method for manufacturing a motor rotor, enabling crimping of the resolver rotor at low cost with less influence on the detection accuracy. A motor rotor includes a resolver rotor and a rotor shaft to which the resolver rotor is affixed by crimping. The rotor shaft includes a first stepped section with which a crimping punch makes contact to deform the first stepped section, a second stepped section with which an end surface of the resolver rotor makes contact, and a cutout groove formed in a surface which is located near the first stepped section and with which an inner peripheral hole section of the resolver rotor makes contact. In the crimping operation, the first stepped section of the rotor shaft is bent within the cutout groove to form a crimping protrusion which presses the end surface of the resolver rotor.10-18-2012
20120229005ELECTRIC DRIVING DEVICE AND ELECTRIC POWER STEERING APPARATUS EQUIPPED WITH THE SAME - Reduction in costs and size of an electric driving device is achieved and reliability of electrical connection thereof is enhanced. The device comprises: an electric motor; a controller that is disposed coaxially with the axis of the electric motor rotation shaft and takes control of driving the electric motor; a motor terminal whose end extends from the electric motor toward the controller; and an output terminal whose end extends from the controller toward the electric motor; wherein a portion of the motor terminal including the end thereof and that of the output terminal including the end thereof each are formed to extend in parallel to an axial direction of the electric motor, and overlappingly connected with each other.09-13-2012
20110121693DRIVING DEVICE - A driving device includes a first rotating member, an armature member being movable and rotatable together with, a second rotating member being rotatable relative to the armature member, a magnetic force generating portion for generating a magnetic force for attracting the armature member toward the second rotating member in order to establish a connection between the armature member and the second rotating member so as to be integrally rotatable, a sensor magnet fixed to the second rotating member, a sensor provided for detecting a change of the magnetic field and a fixing member formed with a first claw portion engaged with the second rotating member and a second claw portion engaged with the sensor magnet while being press-fitted thereto in a radial direction thereof, wherein the sensor magnet is fixed to the second rotating member by means of the fixing member.05-26-2011
20080297010BRUSHLESS MOTOR - A brushless motor has a stator, a rotor rotatably disposed in an inner circumferential portion of the stator, and a resolver configured to detect a rotational position of the rotor with respect to the stator. The resolver has a resolver stator disposed at a fixed circumferential position with respect to the stator, and a resolver rotor disposed at a fixed circumferential position with respect to the rotor.12-04-2008
20120262032SHIELDING STRUCTURE - A shielding structure disposed between a rotary motor and a resolver for resolving angular position thereof. The shielding structure includes a first shielding body made of a material with a permeability more than 4000. The first shielding body is sandwiched between the resolver and the rotary motor for shielding the resolver from the rotary motor. The first shielding body provides a path of low magnetic resistance to change the direction of magnetic flux and lower the electromagnetic interference of the magnetic field with the operation of the resolver. Accordingly, the resolver can more stably output resolution signals at higher precision.10-18-2012
20110037354STATOR STRUCTURE, MICROMOTOR HAVING THE SAME AND MANUFACTURING METHOD THEREFOR - A stator structure, a micromotor having the same, and a micromotor manufacturing method therefor are provided. In the micromotor configured with the stator, a rotor, the stator and a case are disposed outward in a radial direction. The rotor is pivotly connected in the case and the stator includes a FPC assembly which is configured with a plurality of coil windings and at least one position signal generating unit and is circumferentially disposed between the rotor and the case, with the rotor as the axis. Configuration positions of the coil windings and the position signal generating unit are corresponding to magnetic poles of the rotor.02-17-2011
20120267988CONDITION MONITORING SYSTEM FOR A MOTOR - In order to enable simple, low-cost monitoring of a motor, a switch box cover for the motor, a condition monitoring system has a sensor unit for detecting a measured variable of the motor, a communication device, which is designed to provide a characteristic value that characterizes the measured variable to a reading device, and a supply unit for supplying the sensor unit with energy.10-25-2012
20120326574ROTARY SINGLE-PHASE ELECTROMAGNETIC SERVO ACTUATOR COMPRISING AN ACTUATOR AND A POSITION SENSOR - A single phase electromagnetic servo-actuator that includes a rotary actuator which moves a mobile member along a limited travel including a 2N ferromagnetic pole stator structure and at least one excitation coil, the stator structure being made of a material with high magnetic permeability and a rotor having ferromagnetic yoke and a thin magnetized portion of 2N pairs of axially magnetized poles, in alternate directions, and a rotor angular position sensor, the thin magnetized portion being a separate element from the ferromagnetic yoke.12-27-2012
20120319540Servo Device And Remote Control Device Having The Same - A servo device 12-20-2012
20120091864Magi - Magnetic invention - A Magnetic Invention, or a magnetic field power convertor, provided with a driveshaft inserted transversely through a custom rare-earth neodymium magnet. This combination is then mounted inside a cylindrical electromagnet. Two sets of coils, referred to as the motor coils and the generator coils, are designed with a custom-built proximity switch and pulser system. The duration and amount of the input pulse and energy are minute and the output energy from the Magnetic Invention occurs continuously throughout the entire cycle.04-19-2012
20120139396Ceiling Fan Motor - A ceiling fan motor has a stator with several coil arms disposed at intervals for the winding of magnetizing coils. Between two adjacent coil arms are formed with a magnetic pole spacer. A supporting base is provided in a predetermined magnetic pole spacer for the disposition of a sensor to detect the position of the rotor.06-07-2012
20130009523ELECTROMECHANICAL DEVICE, ROBOT, AND MOBILE UNIT - An electromechanical device includes: a rotor including a center axis, a permanent magnet arranged on a first cylindrical surface along an outer periphery, and first and second magnet side yokes arranged at both end parts, of the permanent magnet; and a stator including an electromagnetic coil arranged on a second cylindrical surface along an outer periphery of the permanent magnet, and a magnetic sensor arranged opposite the permanent magnet with the first magnet side yoke located between the magnetic sensor and the permanent magnet. The first and second magnet side yokes are configured in such a way that a magnetic flux density on a surface opposite to the permanent magnet, of the second magnet side yoke on the side where the magnetic sensor is not arranged, is smaller than a magnetic flux density on a surface opposite to the permanent magnet, of the first magnet side yoke.01-10-2013
20130015748MOTORAANM TAKEI; TomoyukiAACI Nara-shiAACO JPAAGP TAKEI; Tomoyuki Nara-shi JPAANM MATSUBARA; KenAACI Matsubara-shiAACO JPAAGP MATSUBARA; Ken Matsubara-shi JPAANM KITAHATA; KoujiAACI Minamikawachi-gunAACO JPAAGP KITAHATA; Kouji Minamikawachi-gun JP - A motor includes: a rotary shaft; a rotor that is provided on the rotary shaft so as to be rotatable together with the rotary shaft; a stator that is provided radially outward of the rotor; a housing that supports the stator; a resolver that has a resolver rotor rotatable together with the rotary shaft and a resolver stator radially facing the resolver rotor; and a resolver unit that is an assembly component including the resolver stator. The resolver unit includes a bearing that rotatably supports the rotary shaft and a case member that has a first fitting portion to which the resolver stator is fitted and a second fitting portion to which the bearing fitted and that is detachably connected to the housing. At least part of the resolver unit is arranged on a radially inner side of the rotor.01-17-2013
20130020917ENCODER, DRIVING APPARATUS, METHOD FOR CALCULATING ABSOLUTE POSITION, AND METHOD FOR MANUFACTURING ENCODER - An encoder includes a position data obtainer that obtains superordinate data representing a position of a moving body in a superordinate section and subordinate data representing a position in a subordinate section repeated in a superordinate section with higher resolution than that of the superordinate data, a storage in which a correction value that can correct a deviation amount occurring in the superordinate data against the subordinate data is recorded to be associated with an absolute position with resolution nearly equal to that of the superordinate data, a corrector that obtains the correction value from the storage and corrects the superordinate data, and a section identifier that identifies, based on the superordinate data corrected by the corrector and the subordinate data when the superordinate data is obtained, the subordinate section in which the subordinate data is obtained against the superordinate section.01-24-2013
20130020916ANTI-SEPARATING STRUCTURE OF SENSING MAGNET FOR EPS MOTOR - Disclosed is an anti-separating structure of a sensing magnet for EPS motor, the structure being a coupling structure between the sensing magnet and a plate of the EPS motor, the structure including a disk-shaped plate formed with a magnet accommodation unit protrusively formed near at a rotation shaft, a ring-shaped sensing magnet centrally formed with a through hole having a diameter corresponding to the magnet accommodation unit, and magnet grip units each formed at a predetermined gap along a circumferential surface of the magnet accommodation unit.01-24-2013
20120242198VEHICLE DRIVE DEVICE - A vehicle drive device including a rotating electrical machine having a rotor and a stator, as a driving source force of wheels; a rotation sensor that detects a rotational position of the rotor with respect to the stator; a rotor support member that supports the rotor at a position radially inside the stator; an oil pump having a pump rotor disposed on a same axis as the rotating electrical machine and drivingly coupled to the rotor support member, and a pump case accommodating the pump rotor; and a support bearing that is placed between the pump case and the rotor support member in a radial direction, and that rotatably supports the rotor support member with respect to the pump case. The rotation sensor and the support bearing are positioned so as to overlap each other as viewed in the radial direction.09-27-2012
20080246374Electromotive Servodrive for Vehicles - In the case of an electromotive auxiliary drive for vehicles, particularly for windscreen wiper drives or adjustment drives for vehicle elements with a secondary transmission for the electromotor, with at least one magnetic sensor, which acts in conjunction with a signal transmitter or permanent magnet arrangement formed of at least one permanent magnet and rotating with a drive shaft or a gear wheel in order to record the angle position and/or modification of the angle position of the rotation of the shaft or the gear wheel, the permanent magnet arrangement is arranged on the front side on a shaft end bedded in a bearing arrangement or on a drive element bedded in the bearing arrangement and arranged on the shaft. The at least one magnetic sensor is arranged opposite the permanent magnet arrangement in the direction of the shaft axis within the bearing arrangement.10-09-2008
20130169120DRILLING MOTOR OPTICAL ENCODER MOUNTING APPARATUS AND METHOD OF INSTALLATION - Control over an electric motor is especially critical in large drilling rigs and a means of accurately and quickly measuring the speed of the rotor of an electric motor and correlating that information with other real-time information has been hampered by the failure of the prior art to attach optical encoders to electric motors with precision. The present device attaches to arbor of a cap on the end of the rotor which provides a centralized and sealed shaft extending through a covering plate on the end of the motor and directly attaching to an optical encoder.07-04-2013
20080224575Servomotor neutral position setting apparatus of wireless remote-control model - A servomotor neutral position setting apparatus of a wireless remote-control model comes with a simple structure that embeds a servo rudder piece into an output shaft of a servomotor to set a neutral position with high precision.09-18-2008
20130140963MOTOR WITH ENCODER AND ENCODER FOR MOTOR - A motor with an encoder has a motor, and an encoder disposed on the anti-load side of this motor. The motor includes a motor electromagnetic part, and a motor shaft rotatably supported by a load side bearing and an anti-load side bearing, and the encoder includes a hub having a convex part formed in a load side end thereof, the hub being coaxially fixed to an anti-load side end of the motor shaft, and a rotating disc fixed to an anti-load side end of this hub. The convex part of the hub is fitted to a concave part formed in the anti-load side end of the motor shaft so that the hub is fixed to the motor shaft.06-06-2013
20130140964MOTOR FOR ELECTRIC POWER STEERING DEVICE - A motor for an electric power steering device, includes: a housing side bearing which is placed on the output side of a shaft of a rotor placed in a frame, and is supported by a housing connected to the frame; and a frame side bearing which is placed on the opposite output side of the shaft of the rotor, and is composed of an outer ring and an inner ring supported by the frame. The motor is controlled by an electronic control unit which is coaxially placed with the rotor, the motor including: a bearing box which supports the frame side bearing, and is formed with a closed end section between the closed end section and the side of the frame side bearing; an axial elastic body which is placed on the closed end section of the bearing box, and applies a preload in an axial direction to the outer ring of the frame side bearing; and a radial elastic body which is placed on the outer circumferential side of the outer ring of the frame side bearing, and applies a preload in a direction perpendicular to the axial direction.06-06-2013
20130175904SWITCHED RELUCTANCE MOTOR - Disclosed herein is a switched reluctance motor including: a stator; a rotor rotating based on a motor shaft with respect to the stator; a housing having a cup shape and receiving the stator and the rotor therein and including a receiving groove at a central portion of a lower surface thereof; a sensor part including a disk coupled to a predetermined position of a lower portion of the motor shaft extended up to the receiving groove and a sensor detecting a rotational state of the disk, and mounted on the outside of the housing; and filter shielding the sensor part.07-11-2013
20130134841MOTOR FOR ELECTRIC POWER STEERING - Provided is a motor for electric power steering, which prevents a foreign substance from entering the interior of a controller. The motor for electric power steering includes a resolver structure provided between a housing for separating the controller and a resolver from each other and an insulator opposed to the housing so as to surround a fixing portion for fixing base end portions of terminals electrically connected to distal end portions of conductors of coils, the resolver structure preventing a foreign substance from passing between the housing and the insulator to enter the interior of the controller.05-30-2013
20130113342INDUCTION MACHINE SHORT CIRCUIT STOP AND METHOD FOR INSTALLATION - An induction machine short circuit stop is interposed between a brace and a machine component, such as a generator building bolt, in order to limit component motion during a short circuit event. The stop is a block of resilient non-conductive material that is oriented proximal the machine component at a desired spaced gap. Gap dimensions may be modified by use of different height stop blocks and/or shims. The stop is affixed to the brace by straps, cordage or fasteners, such as threaded studs. The stop is suitable for retrofitting existing induction machines in the field or in refurbishing service centers.05-09-2013
20130093295Direct Current Brushless Motor - A motor includes a frame, a shaft rotatably mounted onto the frame, and at least one disc mounted onto the shaft. At least one permanent magnet is mounted on the disc, and at least one electromagnet and at least one coil are mounted to the frame in rotational magnetic proximity to the permanent magnet. A battery is connectable to the electromagnet and the coil for energizing the electromagnet and for receiving electrical current from the coil for charging the battery. A relay switch controls the transmission of electrical power from the battery to the electromagnet. A sensor generates a signal to the relay switch to activate electrical power to the electromagnet upon sensing that the permanent magnet is positioned with respect to the electromagnet such that a magnetic force generated by the electromagnet would be effective for inducing movement of the permanent magnet and consequent rotation of the disc.04-18-2013
20130093293Hybrid electric motor - The invention is an efficient electric motor which has fixed permanent and electromagnets in the stator with fixed permanent magnets in the rotor. An electronic Pulse Width Modulator (PWM) controller manages the flow of electric power to the electromagnets of the stator. Infrared sensors and Hall sensors provide the controller with the precise location of the rotor thus allowing the controller to provide the maximal electromagnetic forces to provide increased efficiency for the present electric motor. The present inventive motor is useful in an electric automobile or household use.04-18-2013
20130099631Vertical hobby servo mounts - Hobby servo mounts are provided. In certain circumstances, a servo mount includes a top panel, a bottom panel, and a side panel. The top panel is configured to secure a hobby servo motor to the hobby servo mount. The bottom flange is configured to secure the hobby servo motor and the hobby servo mount to an operational environment. The side panel extends between and connects the top panel and the bottom flange. The top and bottom panels may be approximately parallel to each other, and the side panel may intersect the top and bottom panels perpendicularly or at an angle.04-25-2013
20130127304CURRENT SWITCHING PULSE SERVO - A current switching pulse servo including a motor, an output gear, a pulse pattern plate, and a first conductor. The motor is configured to drive a gear train of the servo. The output gear is configured to be driven by the gear train. The pulse pattern plate includes conductive portions and nonconductive portions. The pulse pattern plate is configured to rotate with the output gear. The first conductor connects the motor to the pulse pattern plate to conduct current from the motor to the pulse pattern plate.05-23-2013
20130093294INTEGRATED HIGH FREQUENCY ROTARY TRANSFORMER AND RESOLVER FOR TRACTION MOTOR - An integrated rotary transformer and resolver and a motor including an integrated rotary transformer and resolver is provided. The integrated rotary transformer and resolver may include, but is not limited to, a stator having an outer surface and a plurality of slots disposed along the outer surface, a plurality of sensing coils, the plurality of sensing coils disposed in at least some of the plurality of slots, a rotor having a surface varying from a first predetermined thickness to a second predetermined thickness, and a controller electrically coupled to the plurality of sensing coils and configured to determine a position of the rotor based upon a voltage induced in each of the coils due to a relative thickness of the rotor opposed to the respective sensing coil.04-18-2013
20100277042Electrical actuating drive - The present invention relates to an electrical actuating drive (11-04-2010
20110215682Epitrochoidal Electric Motor II - An electric motor contains a mechanical mechanism that causes a rotor to move in an epitrochoidal path. Disposed around the epitrochoidal path are forcers that may impel or force the rotor to rotate. The mechanical mechanism that creates the epitrochoidal path may consist of an output shaft with an eccentric lobe, where the rotor revolves around the eccentric lobe. A fixed mounted sun gear may engage a ring gear mounted to the rotor to cause the epitrochoidal motion. Some embodiments may have two or more rotors, and may include controllers with feedback sensors to operate the electric motor at a specific speed or to control the speed as defined in a speed profile.09-08-2011
20110210651MOTOR, MOVING UNIT INCORPORATING SAME AND METHOD OF STORING ERROR INFORMATION ON POSITION WHERE ROTOR POSITION DETECTION ELEMENT IS ATTACHED - A motor of the present invention is provided with a storage portion, and information stored in the storage portion can be output to the outside.09-01-2011
20090230824ELECTRIC MOTOR - An electric motor has a stator (09-17-2009
20120274185MOTOR ROTOR AND MOTOR - A motor with rotation detector includes a rotary shaft, a core part placed around the shaft and provided with axially extending through holes, permanent magnets individually mounted in the through holes, a pair of end plates provided at both ends of the core part to close openings of the through holes, and a motor stator including a coil. The end plates are made of a non-magnetic substance. One of the end plates is provided, on its outer surface in an axial direction, with recesses and protrusions for angle detection alternately arranged in a circumferential direction. A sensor stator with an excitation coil to which a high frequency signal is inputted is located to face the recesses and protrusions of the outer surface of the end plate.11-01-2012
20110234057Actuator With Load Cell - The actuator is of the roto-linear type and comprises a sleeve, a clevis and an operating rod which transmits the load. An electromagnetic sensor that measures and controls the load is placed inside the actuator, at the shoulder of the clevis. This sensor is associated with measurement means for processing the signals from the said winding, which winding are torus-shaped and arranged inside a field frame which is magnetically closed by an armature.09-29-2011
20130154447ENCODER AND SERVO MOTOR - An encoder includes a first substrate including a point light source that emits light onto reflective slits formed on a disc and a light-receiving element that receives light emitted from the point light source and reflected by the reflective slits, a second substrate onto which the first substrate is mounted, a lustrous connecting portion configured to electrically connect the first substrate and the second substrate, and a covering material configured to cover the connecting portion in the manner that the point light source and the light-receiving element are exposed.06-20-2013
20130154448ELECTRICAL MACHINE FOR A MOTOR VEHICLE - An electrical machine, e.g., a starter motor for a motor vehicle, includes at least one carbon brush for producing an electrical sliding contact with a commutator, and a displacement sensor for detecting wear of the carbon brush.06-20-2013
20130193812ROTARY ACTUATOR - An inner ring of a bearing is affixed to an end of the rotor spindle and is immovable relative to the rotor spindle in the axial direction. An outer ring of the bearing is located radially outside of the inner ring via a roller body. An outer ring affixed portion is integrally affixed to the outer ring and is immovable relative to the outer ring in the axial direction. An inner ring receiving portion is located between the inner ring and a bottom portion of a housing and is in contact with the inner ring.08-01-2013
20130200757ELECTRIC MACHINE - An electric machine (08-08-2013
20120086313ROLLING BEARING ASSEMBLY WITH ROTATION SENSING MEANS, ELECTRIC MACHINE PROVIDED WITH SUCH AN ASSEMBLY AND FORK LIFT TRUCK COMPRISING SUCH AN ELECTRIC MACHINE - This rolling bearing assembly (04-12-2012
20110193452INVERTER-INTEGRATED ELECTRIC COMPRESSOR AND ASSEMBLY METHOD THEREFOR - Heat of a heat-generating electrical component mounted on a control circuit board of an inverter is effectively dissipated, a lead terminal that connects the electrical component to the control circuit board is prevented from breaking due to vibration, and the workability for assembling the inverter and its surrounding area is improved. An IGBT serving as a heat-generating electrical component mounted on the lower surface of a lower board serving as a control circuit board of an inverter is disposed in abutment with a heat-dissipating flat section provided on an inner wall of an inverter box provided on the outer periphery of a housing so that the heat of the IGBT is dissipated toward the housing. Moreover, a spacer member is interposed between the lower board and the IGBT so as to fill a space between the lower board and the IGBT, and the spacer member is rigid enough that the lower board and the IGBT are prevented from being displaced toward and away from each other.08-11-2011
20120206025ALTERNATOR FOR VEHICLE - It is configured in such a manner that a convex portion (08-16-2012
20100052481IN-VEHICLE AC GENERATOR - There is provided an in-vehicle AC generator having a regulator assembly that is mounted in the bracket of the AC generator. The regulator holding unit provided in the regulator assembly has a containing portion in which at least the whole periphery of an opening is surrounded by a wall member; a circuit unit of the regulator is inserted into the containing portion through the opening; the heat sink for the regulator is held by the containing portion in such a way that the peripheral portion thereof is adhered to the wall member that surrounds the whole periphery of the opening, and closes the opening; and the containing portion is provided with a resin filled in the vicinity of the contained circuit unit.03-04-2010
20130049553SPINDLE MOTOR - Disclosed herein is a spindle motor including: a rotor part including a shaft and a rotor case coupled to the shaft to rotate integrally with the shaft, having a rotor magnet coupled to an inner side thereof, and having a disk mounted on one surface thereof; and a stator part including a base plate having the rotor part coupled thereto, a bearing part rotatably supporting the shaft, and an armature having a stator core part coupled to an outer peripheral surface of the bearing part so as to face the rotor magnet and a coil wound several times around the stator core part, wherein the stator core part is formed by stacking a plurality of stator cores having different thickness ratios.02-28-2013
20090322189System for collecting stray energy - A converter system for generating electrical signal from an optical signal utilizes a collector for collecting an energy source as an optical signal. The collected optical signal is transmitted to a receiver which is associated with a converter for converting the optical signal to an electric signal. In one embodiment the converter system is incorporated in an electric motor of the type having a housing, a rotating shaft mounted in the housing, a commutator on the shaft, and a pair of permanent magnets, whereby the shaft is rotated in response to electrical power being applied to the commutator. The system includes an optical collector mounted in the housing in non-interfering relationship with the commutator and the shaft, whereby the optical collector is adapted for generating an optical signal from the stray energy in the motor housing when power is applied to the motor and the shaft is rotating. The optical signal thus generated is transmitted to the receiver.12-31-2009
20130069492INTEGRATED MOTOR DRIVE AND BATTERY CHARGING SYSTEM - In one possible embodiment, a motor charging system for connection with a battery is provided having a rotor and a stator. The stator has delta H-bridge connected windings. The delta H-bridge includes an inverter at one side and a switching means at another side with each winding being connected between inverter pole switches and switching means pole switches. An A/C power port is connected to the windings such that when the switching means is off the A/C power port is connected to the battery bus via the windings and the inverter.03-21-2013
20130069494INVERTER MODULE AND INVERTER INTEGRATED ELECTRIC COMPRESSOR - The present invention has an object to provide an inverter module and an inverter integrated electric compressor capable of reliably suppressing noise interference on a control circuit board and facilitating filling with a resin gel material. Provided is an inverter module including a power system circuit board and a control circuit board (03-21-2013
20130069493MOTOR CONTROL DEVICE - A motor control device has a square metallic board, an electric-motor driving switching element mounted on the metallic board, a printed board disposed above the metallic board, a case that accommodates the metallic board and the printed board, a connection portion disposed on a side surface of the case, perpendicular to the metallic board and the printed board, that connects an electric motor and the switching element, an electric-motor controlling semiconductor element mounted in a square region of the printed board located immediately above the metallic board, a power supply component and a connector mounted outside the square region of the printed board, and a terminal that connects board surfaces of the metallic board and the printed board.03-21-2013
20120217849APPARATUS FOR CALCULATING ROTATIONAL POSITION OF ROTARY MACHINE - In a system for driving an inverter, a superimposing element superimposes, on an output voltage of the inverter. The high-frequency voltage signal is correlated with a measured high-frequency component value of a current flowing in the rotary machine. A calculating element calculates a rotational angle of the rotary machine based on the measured high-frequency component value. A dead-time compensating element shifts a start edge and an end edge of an on duration for each of first and second switching elements of the inverter by a preset same time to compensate for an error due to dead time. A current manipulating element manipulates a current flowing in the rotary machine to maintain an accuracy of calculation of the rotational angle.08-30-2012
20130057121ELECTRICAL ROTATING MACHINE - An electrical rotating machine which includes: a rotor; a stator provided with an armature winding, the rotor and the stator being housed in a housing space formed by a front bracket and a rear bracket; and a rear cover provided with a circumferential side wall and a bottom wall and disposed near the bottom of the rear bracket. The rear cover includes a plurality of engaging openings formed in the circumferential side wall of the rear cover, and steps of the engaging openings each produced by the difference between the diameter of the side wall on the bottom wall side and the diameter of the side wall on the end opening side. The bracket has engaging portions inserted into the corresponding steps for fixing the rear bracket.03-07-2013
20110037355DRIVE UNIT FOR A VEHICLE SEAT - A drive unit (02-17-2011
20120098391DRIVE APPARATUS - An electronic control unit (04-26-2012
20120286630DRIVE UNIT - A drive unit includes a motor disposed in a motor case, a controller, disposed in a controller case, and a lever. The lever includes a supported portion that is fitted on a support of the controller case in a rotatable manner, a first action point at a first distance from the supported portion, and a second action point at a second distance from the supported portion. When the lever rotates from a close state toward an open state according to an application of a first force to the first action point, the second action point abuts on a specific part on the motor case, thereby generating a second force from the second action point to the specific part in a parallel direction of the axis of the motor case, with its reaction force reversely applied from the supported portion to the support as a third force.11-15-2012
20110278995MOTOR FOR AN ELECTRIC POWER STEERING APPARATUS - Provided is a motor for an electric power steering apparatus, in which vibrations and noises are suppressed. The motor for an electric power steering apparatus includes: a motor section (11-17-2011
20090039741ELECTRIC MOTOR - The invention relates to an electric motor with a rotating hollow shaft (02-12-2009
20090206709Hybrid drive unit - A hybrid drive unit includes a main body case having a connection portion connected to an engine, the main body case accommodating therein a rotating electric machine; and an inverter case integrated with the main body case, the inverter case accommodating therein an inverter that controls the rotating electric machine, wherein an inverter breather is disposed in a side wall portion of the inverter case on a side of the connection portion so as to provide communication between an inside and an outside of the inverter case.08-20-2009
20120112608ELECTRIC MACHINE HAVING AN INTEGRATED INVERTER - An electric machine system includes an alternating current (AC) electric machine. The AC electric machine includes a machine housing having a machine portion and a switch portion. A stator is fixedly mounted in the machine portion, a rotor rotatably mounted relative to the stator, and a plurality of switch members are arranged within the switch portion. The plurality of switch members are electrically connected to the stator. A direct current power source is electrically connected to the plurality of switch members. A controller is arranged within a controller housing and electrically connected to the plurality of switch members. The controller housing is distinct from and remotely mounted relative to the AC electric machine. The controller is configured and disposed to activate select ones of the plurality of switch member to convert DC current between the DC power source and an AC current to operate the AC electric machine.05-10-2012
20110285255ALTERNATOR - An alternator is provided with a rectifier including a positive-side and a negative-side heatsink that cool rectifier elements corresponding to each heatsink and a circuit board that holds the positive-side and the negative-side heatsink, wherein one of either the positive-side and the negative-side heatsink or the circuit board is provided with engaging holes, and the other with engaging protrusions that are engaged with the holes.11-24-2011
20090102329Rectifier for automotive alternator - In a rectifier for an automotive alternator, each of the rectifying elements includes a semiconductor chip and a lead electrode that connects the semiconductor chip to a corresponding one of terminals. The lead electrode has a joining portion joined to a second surface of the semiconductor chip and a lead body portion extending in a direction perpendicular to the second surface. The corresponding terminal has a joining portion that protrudes out of a terminal base and extends in the direction parallel to the second surface to be joined to the lead body portion. The joining portion of the corresponding terminal is formed of first and second terminal plates that are laminated in the direction perpendicular to the second surface. The first terminal plate is located farther from the semiconductor chip than the second terminal plate and has a larger coefficient of thermal expansion than the second terminal plate.04-23-2009
20110187243AUTOMOTIVE ALTERNATOR - An automotive alternator is provided that has a brush holder assembly that reduces exclusive circumferential space for the brush holder assembly inside a rear bracket, and that also reduces entry of water, dust, etc., into a regulator circuit housing portion.08-04-2011
20090179530STATOR WINDING HAVING SAME RADIAL POSITIONS - Disclosed is an improved stator for a dynamoelectric machine including a stator core which has a plurality of core slots extending axially from a first end of the stator core to a second end of the stator core. The stator also includes a stator winding having a plurality of phases. Each phase of the stator winding includes at least a first filar. The first filar extends around the stator core and form a plurality of layers and has a plurality of slot segments disposed in the plurality of core slots. The slot segments are alternately connected at the first and second ends of the stator core by a plurality of end loop segments. The slot segments are configured such that at least two consecutive slot segments are disposed in substantially the same radial position relative to additional slot segments of the plurality of slot segments disposed in the respective core slots, and the at least two consecutive slot segments are disposed at differing radial distances from a central axis of the stator core.07-16-2009
20100102683CONTROLLER-INTEGRATED ROTATING ELECTRIC MACHINE - Assembly of a controller-integrated rotating electric machine is facilitated. In a controller-integrated rotating electric machine provided with a rotating electric machine unit having a rotor (04-29-2010
20090167122RECTIFIER AND ELECTRIC MACHINE COMPRISING SAID TYPE OF DEVICE - The invention relates to a rectifier unit comprising one plus cooling body (07-02-2009
20130119834INVERTER-INTEGRATED ELECTRIC COMPRESSOR - A control circuit board (05-16-2013
20110227461System for Collecting Stray Energy - A converter system for generating electrical signal from an optical signal utilizes a collector for collecting an energy source as an optical signal. The collected optical signal is transmitted to a receiver which is associated with a converter for converting the optical signal to an electric signal. In one embodiment the converter system is incorporated in an electric motor of the type having a housing, a rotating shaft mounted in the housing, a commutator on the shaft, and a pair of permanent magnets, whereby the shaft is rotated in response to electrical power being applied to the commutator. The system includes an optical collector mounted in the housing in non-interfering relationship with the commutator and the shaft, whereby the optical collector is adapted for generating an optical signal from the stray energy in the motor housing when power is applied to the motor and the shaft is rotating. The optical signal thus generated is transmitted to the receiver.09-22-2011
20110227460PACKAGING IMPROVEMENT FOR CONVERTER-FED TRANSVERSE FLUX MACHINE - A transverse flux machine has at least three phases, each provided by a stator core and phase windings. Each of the at least three phases is captured within a common housing. Parallel lines extend from the at least three phases, and a current source converter is created on each of the parallel lines by inductors, a switching network, and communicating capacitors, which are received within the common housing.09-22-2011
20090243443Drive unit - A drive unit includes a rotary electric machine; an inverter used to control the rotary electric machine and a capacitor that smooths a power supply voltage of the inverter; and a case housing the rotary electric machine. A control equipment housing space structured by an inverter housing space portion that houses the inverter and a capacitor housing space portion that houses the capacitor is formed in the case on an outer side of the rotary electric machine in an axial center radial direction of the rotary electric machine. A refrigerant flow chamber through which a refrigerant flows is formed between the control equipment housing space and the rotary electric machine. A capacitor heat exchange fin that performs heat exchange between the capacitor housing space portion and the refrigerant is provided between the capacitor housing space portion and the refrigerant flow chamber.10-01-2009
20120194040High Torque Density and Low Torque Ripple Actuator System - A permanent magnet electric machine drive system that includes a plurality of magnets for generating a first magnetic field and a stator is disposed radially outward from the plurality of magnets for generating a magnetic field. The stator includes a plurality of stator poles separated by slots with each respective stator pole having a concentrated winding with a respective number of turns formed around each respective stator pole. Each respective concentrated winding within the stator comprising non-overlapping phases. The concentrated windings form a dual three-phase winding configuration that includes a first set of three-balanced phase windings and a second set of three-balanced phase windings. The first set of three-balanced phase windings is phase shifted in the range of 15 to 45 electrical degrees from the second set of three-balanced phase windings for reducing the torque ripple.08-02-2012
20100148639STRUCTURE INCLUDING SPINDLE MOTOR AND PRINTED CIRCUIT BOARD - A spindle motor structure is disclosed wherein the spindle motor structure comprises a spindle motor including a stator having a core wound with a coil and a rotor rotating about the stator; and a driving substrate aligned at an outer periphery of the rotor and soldered with driving control parts of the spindle motor including a plurality of circuit parts including a driving integrated circuit and the like; and a base on which the spindle motor and the driving substrate are installed, wherein the spindle motor is assembled with or dissembled from the base independently from the driving substrate.06-17-2010
20090085446SWITCHING DEVICE, GENERATOR-MOTOR APPARATUS USING SWITCHING DEVICE, DRIVE SYSTEM INCLUDING GENERATOR-MOTOR APPARATUS, AND COMPUTER-READABLE RECORDING MEDIUM ON WHICH A PROGRAM FOR DIRECTING COMPUTER TO PERFORM CONTROL OF GENERATOR-MOTOR APPARATUS IS RECORDED - A generator-motor apparatus includes a control circuit, an alternator, electrode plates, and switching devices. The electrodes plates have a substantial horseshoe shape, and are provided on an end surface of the alternator so as to surround a rotating shaft of the alternator. Each of the switching devices is formed by sandwiching a MOS transistor between two electrodes, and has a can structure for sealing the internal space of the switching device using a resin. The switching devices are directly attached to the electrode plate by means of soldering, and the switching devices are directly attached to the electrode plate by means of soldering. The control circuit controls the switching devices. The switching devices drive the alternator as an electric motor or an electric power generator.04-02-2009
20100181876INVERTER-INTEGRATED ELECTRIC COMPRESSOR - An inverter-integrated electric compressor in which it is possible to make an inverter device and an inverter accommodating section small and compact and which, at the same time, has high reliability enabling interference of electromagnetic noise from a high-voltage bus-bar to be suppressed is provided. An inverter-integrated electric compressor in which an inverter accommodating section is provided on a periphery of a housing, and an inverter device is accommodated inside thereof, wherein the inverter device includes a power circuit board and a control board wherein a high-voltage bus-bar connecting a high-voltage line and high-voltage components disposed in the interior of the inverter accommodating section is disposed in a space above the power circuit board and the control board, and wherein a shield plate is provided between the high-voltage bus-bar and an inverter module.07-22-2010
20100181877INVERTER-INTEGRATED ELECTRIC COMPRESSOR - Provided is an inverter-integrated electric compressor capable of reducing the size of an inverter accommodating section by modularizing a power circuit board and a control board and further reducing the size of an inverter device, as well as an accommodating section thereof, by improving the positional structure with respect to other electrical components. An inverter-integrated electric compressor including an inverter accommodating section provided on a periphery of a housing accommodating an inverter device includes an inverter module constructed by integrally modularizing a power circuit board and a control board, wherein attachment legs provided on both edges of at least one side surface of the inverter module protrude outward from a module main body, and the inverter module accommodates the inverter accommodating section with the attachment legs positioned in spaces at both ends of a glass-insulated terminal.07-22-2010
20100259137GENERATOR INCLUDING A RECTIFIER SYSTEM - A generator, for example a three-phase generator including an associated rectifier system, is used, for example for the electrical voltage supply of a motor vehicle. The AC voltage produced by the generator is rectified by the rectifier system having a plurality of rectifying elements 10-14-2010
20100259136ROTARY ELECTRIC MACHINE AND DRIVING CONTROLLER FOR ROTARY ELECTRIC MACHINE - A plurality of salient poles projecting toward a stator are arranged on a rotor core along the circumferential direction while being spaced apart from each other, and rotor windings are wound around these salient poles. The rotor windings are short-circuited through diodes, respectively; and when currents rectified by the diodes flow through the rotor windings, the salient poles are magnetized to produce a magnet where the magnetic pole is fixed. The width θ of each salient pole in the circumferential direction is smaller than a width corresponding to an electric angle of 180° of the rotor, and the rotor windings are wound around each salient pole by short-pitch winding.10-14-2010
20100019628HIGH PERFORMANCE ROTATING RECTIFIER FOR AC GENERATOR EXCITERS AND RELATED METHODS - A brushless exciter apparatus including a rotatable rectifier hub assembly and associated methods are provided. The brushless exciter apparatus includes an exciter rotor assembly including a rotor core, a rotatable shaft carrying the rotor core, and an exciter armature having end turns extending beyond either side of an axial extent of the rotor core. The brushless exciter apparatus also includes a rotatable rectifier hub assembly including a rotatable rectifier hub carrying one or more diode assemblies positioned along an axial extent of the rotatable rotor shaft adjacent a rotor core, at least partially radially between an extent of the exciter armature and the outer surface of the shaft.01-28-2010
20100127602FREQUENCY CONVERTER FOR CONTROLLING AN ELECTRIC MOTOR - An assembly includes a frequency converter, a motor, and an adapter. The frequency converter and the motor both have housings with an opening. The adapter has a base part and a circuit board having first and second electrical connecting elements supported over a portion of a central opening of the base part. The adapter is between the housings with the central opening being between the openings of the housings. The base part is mechanically connected to the housings with the first electrical connecting element of the adapter engaging an electrical connecting element of the frequency converter via the opening of the converter housing and the central opening and with the second electrical connecting element of the adapter engaging an electrical connecting element of the motor via the opening of the motor housing and the central opening whereby the frequency converter and the motor are connected via the adapter.05-27-2010
20130127305ELECTRIC DRIVE UNIT - An electric drive unit includes an inverter, a stator that receives an AC current from the inverter and forms a magnetic field, a rotor rotated by the magnetic field formed by the stator, a shaft that protrudes into both sides in an axial direction of the rotor and moves in synchronization with the rotor, an inverter casing that stores the inverter in a galvanic isolation state, and a motor housing. The motor housing stores the stator and the rotor in a galvanic isolation state, rotatably supports one end of the shaft using a first bearing, and rotatably supports the other end of the shaft using a second bearing. The inverter and the inverter casing are arranged in an inner side from a pair of bearings including the first and second bearings.05-23-2013
20090001857Automotive alternator having rectifier device - An automotive alternator mounted on a vehicle for generating electric power includes front and rear frames, a cylindrical stator and a rotor. The cylindrical stator is contained in the frames, and the rotor is rotatably supported in the cylindrical stator. A rectifier device for rectifying alternating current generated in the stator into direct current is mounted on a rear surface of the rear frame and covered with a rear cover. To sufficiently cool minus rectifier elements positioned at a place not easily cooled only by the outside cooling air introduced into the alternator, a base portion of the minus rectifier element is contacted to the rear frame thereby to establish heat conduction therebetween. A resilient heat-conductive member is disposed between the base plate and the rear frame to absorb any dimensional discrepancies therebetween.01-01-2009
20110001401Welding Assembled Structure of Diode in Rectifier for Generator - A welding assembled structure of a diode in a rectifier is disclosed. Therein, a solid joint lead which is a lengthwise member with one end contacting a leader frame of the rectifier, and an opposite extended end bent and extended outward the leader frame, while having a soldering tag located at one side of the extended end. The diode has a pin with an extended end located in a restricting area defined by the solid joint lead and the soldering tag. The soldering tag is welded by a spot welding process and bent toward the solid joint lead under stress when melted at a high temperature and, so as to deform and clamp the pin of the diode together with the solid joint lead, thereby fix-clamping the pin of the diode. The diode is secured by spot welding from loosening during operation, thereby ensuring the performance of the rectifier.01-06-2011
20110127888ALTERNATOR WITH SYNCHRONOUS RECTIFICATION EQUIPPED WITH AN IMPROVED ELECTRONIC POWER MODULE - An alternator includes a stator S, a rotor R and a transistor bridge, which form synchronous rectification. The synchronous rectification is in the form of an over-moulded mecatronic housing (06-02-2011
20110241499BRUSHLESS DC MOTOR - A brushless DC motor is provided and includes: a stator assembly; a rotor assembly including a sleeve; a case assembly; and a circuit board assembly which has an electronic component mounted thereon. The case assembly is provided with an opening, the electronic component passes through the opening so as to protrude inside the case assembly, and a groove is formed at an axial end of the sleeve of the rotor assembly in order to prevent the electronic component from making contact with any part of the rotor assembly. Thus, the axial dimension of the brushless DC motor that includes the electronic component disposed to protrude inside the case assembly can be successfully reduced in such a manner that the electronic component is accommodated within the groove. Further, no electronic component is disposed around the outer circumference of the stator assembly and therefore the radial dimension also can be kept small.10-06-2011
20110175495ELECTRIC MACHINE WITH ISOLATED GROUND ELECTRONICS - An electrical system for a vehicle comprises a battery including a positive terminal and a negative terminal, and an alternator. The alternator includes a metal housing with a rotor and a stator positioned within the housing. The alternator further includes an electronics package positioned on the alternator housing. The electronics package includes a regulator and a rectifier, the rectifier including a plurality of negative diodes and a plurality of positive diodes. The plurality of positive diodes are positioned on a first diode carrier that is electrically connected to the negative terminal of the battery. The plurality of positive diodes are positioned on a second diode carrier that is electrically connected to the positive terminal of the battery. The first diode carrier is separated from the housing by an electrical insulation member positioned between the first diode carrier and the housing.07-21-2011
20100072865VEHICLE DRIVE DEVICE - A vehicle drive device includes a motor generator (MG03-25-2010
20100194251Axial generator for Windcrank.TM. vertical axis wind turbine - An axial field generator for use with the Sikes Windcrank™ vertical axis wind turbine is disclosed. One embodiment of the axial generator employs: 16 pairs of puck or disk shaped permanent magnets are provided radial and angular location by an index plate. and mounted on two opposing soft steel rotor plates by virtue of magnetic force. the magnets mounted with opposing fields that alternate in pole orientation: and a stator with 12 electronically commutated circular coils loaded with ferrite cores. The stator is a dielectric plate structure interposed between the opposing rotor plates. The stator coils may be switched to provide 4 poles in a three-phase AC configuration, up to 12 phase with single poles for each phase; or electronically rectified and commutated to provide DC voltage, that may be inverted into any useful wave form. This novel configuration of opposing field magnets in the rotor, and stator having fewer coils than magnets), has been found to produce useful electrical power with no cogging effect. low heating loss, and at a low RPM suitable for direct drive off of the Windcrank™ output shaft. The generator is also easy to produce with minimal expense in specialized tooling.08-05-2010
20110068661MOTOR CONTROLLER AND METHOD FOR ASSEMBLING THE SAME - A motor controller includes a first circuit board having a top side, a bottom side, and a first edge. The first circuit board includes a power module extending from the top side of the first circuit board. The motor controller also includes a second circuit board having a top side, a bottom side, and a first edge. The second circuit board includes a plurality of electrical components extending from the top side of the second circuit board. The second circuit board is electrically coupled to the first circuit board by at least one conductor. The first circuit board is physically coupled to the second circuit board such that the bottom side of the second circuit board is adjacent the bottom side of the first circuit board.03-24-2011
20090026895ELECTRIC MOTOR SYSTEMS - Electric motor systems are provided for use in vehicles. In an embodiment, by way of example only, the system includes a first inverter, a second inverter, and a motor electrically coupled to the first and the second inverters. The motor includes a stator including a plurality of slots formed therein and a plurality of windings. The plurality of windings is disposed at least partially in the slots, and each winding includes a first coil and a second coil. The first coil has a first number of turns, and the second coil has a second number of turns that is unequal to the first number of turns. The first coil of each winding is electrically coupled to the first inverter, and the second coil of each winding is electrically coupled to the second inverter.01-29-2009
20100096956Brush Holder - A brush holder (04-22-2010
20100283357GENERATOR RECTIFIER ASSEMBLY WITH EASE OF ASSEMBLY FEATURES - A rectifier assembly includes first and second housings surrounding a pair of electrical rings. Each of the electrical rings communicates with a pin. Bolts secure a spring to hold diodes against an inner wall of the electrical rings. The first housing includes openings opposed to the bolts to allow access to the bolts for tightening the bolts to hold the spring, and bias the diodes against the inner periphery of the electrical rings. A rotor balance assembly, a generator, and a method of assembling a rectifier assembly are also disclosed and claimed.11-11-2010
20110095659INTEGRATED-INVERTER ELECTRIC COMPRESSOR AND INVERTER UNIT THEREOF - An integrated-inverter electric compressor and an inverter unit thereof are provided, with which sufficient anti-vibration properties can be ensured and weight reduction can be achieved. In an integrated-inverter electric compressor, an inverter unit includes an inverter module in which a power-system metallic board having mounted thereon semiconductor switching elements and so forth is integrated with a plastic case, and a CPU board having mounted thereon a control and communication circuit that operates at a low voltage, such as a CPU, is provided on a top face of the inverter module, and inside the plastic case, a thermosetting resin layer for insulation and anti-humidity purposes is provided so as to cover a top face of the power-system metallic board, and a vibration-absorbing elastomeric adhesive layer that maintains a rubber state in an operating temperature range of the integrated-inverter electric compressor is provided between a bottom face of the CPU board and the thermosetting resin layer.04-28-2011
20100295422Stacking alternator - A stacking alternator includes a supporting frame, at least one stationary armature device securely supported by the supporting frame and at least two rotating magnetic devices rotatably supported by the supporting frame two sides of the stationary armature device respectively, wherein the rotating magnetic devices are arranged to be driven to move with respective to the stationary armature device so as to produce a relative movement between the stationary armature device and the rotating magnetic devices for generating a predetermined amount of electrical current at the stationary armature device, wherein the stationary armature device and the rotating magnetic devices are alignedly and spacedly supported by the supporting frame to form a stacking structure of the stationary armature device and the rotating magnetic devices.11-25-2010
20080218036Rotating Rectifier - A rotatable rectifier arrangement comprises a rectifier component 09-11-2008
20080218035Rotating rectifier assembly - A rotating rectifier assembly includes a metallic housing, a composite substrate, and a rectifier subassembly that can be used to rectify a polyphase AC current. The composite substrate includes a ceramic component and one or more metallic components according to a metallization process. The composite substrate and rectifier subassembly may be positioned in an annular cavity within the metallic housing. In applications where excessive heat and/or shock and vibration are present, an encapsulant may be used to fill the annular cavity.09-11-2008
20120146465ENGINE SYSTEM IN WHICH TRANSFORMER IS ARRANGED IN INDEPENDENT VENTILATION PATH - According to the present invention, even in the case of addition of a transformer for using an engine system with an AC power supply different from the expected voltage of an electrical device, there is substantially no change in the thermal balance in a package due to the presence or absence of the transformer. In the present invention, an engine 06-14-2012
20120306328SEMICONDUCTOR DEVICE AND DRIVING APPARATUS INCLUDING SEMICONDUCTOR DEVICE - A semiconductor device includes a semiconductor module and a pressing member configured to press the semiconductor module to a heat radiation member. The semiconductor module includes switching elements, conductors, and a molded member. Each of the switching elements is mounted on a corresponding one of the conductors. The molded member covers the switching elements and the conductors. More than three of the switching elements are disposed around the pressing member. The switching elements are disposed in a region in which a pressure generated between the semiconductor module and the heat radiation member by pressing with the pressing member is greater than or equal to a predetermined pressure with which heat generated from the switching elements is releasable from the semiconductor module to the heat radiation member.12-06-2012
20100123373DIODE LEAD SUPPORT SHELL - A shell that mechanically supports the diode lead wires against movement both during assembly and subsequent operation of the rotor shaft. In addition, the present invention relates to a method for retaining diode lead wires in a power generator rotor by using the shell of the present invention.05-20-2010
20090134749Rectifier with improved resistance against vibration - In a rectifier, a high-side heatsink in which high-side rectifying elements are mounted provides a common positive terminal attached to the high-side heatsink. A low-side heatsink in which the low-side rectifying elements are mounted provides a common negative terminal. A terminal block assembly includes a plurality of terminal blocks integrated with each other. The plurality of terminal blocks hold the conductive members. A fixing mechanism directly fixes one of the plurality of terminal blocks to the high-side heatsink. The one of the plurality of terminal blocks holds at least one of the conductive members. The at least one of the conductive members is connected to one of the high-side rectifying elements. The one of the high-side rectifying elements is located closest to the output terminal in all of the high-side rectifying elements.05-28-2009
20100289388Drive Device Having an Electric Motor and an Electronic Control System Having a Circuit Carrier - A drive device having an electric motor and an electronic control system for the electric motor, the electronic control system being disposed on a circuit carrier. Provision is made that the circuit carrier is a mechanical component, or part of a mechanical component, of the electric motor.11-18-2010
20090102328POWER GENERATOR - A power generator includes a magnetic pole rotor in which a plurality of N magnetic pole cores and S magnetic pole cores are arranged alternately at regular intervals and that is rotatably supported, stator coils that oppose the magnetic pole rotor and are wound round pole portions of poles of stator poles so as to generate AC power, full-wave rectifying circuits 04-23-2009
20120313492ELECTROMAGNETIC ROTARY ELECTRIC MACHINE - A stator that includes stator windings wound around teeth. A rotor includes: a rotor core; rotor windings wound around main salient poles of the rotor; and a diode serving as a magnetic characteristic adjustment portion that causes magnetic characteristics produced on the main salient poles by electromotive forces induced in the rotor windings to differ in the circumferential direction of the rotor. The rotor has auxiliary salient poles that are each protruded from a side surface of each main salient pole in the circumferential direction. In each of rotor slots formed between the main salient poles adjacent to each other in the circumferential direction, the auxiliary salient poles adjacent to each other in the circumferential direction are connected to each other within the rotor slot. In each rotor slot, at least a portion of the rotor windings is disposed radially inside the auxiliary salient poles.12-13-2012
20120256523STARTER MACHINE SYSTEM AND METHOD - Embodiments of the invention provide a starter machine comprising a housing. A motor can be positioned within the housing and coupled to a gear train, which can be coupled to a shaft. A switched reluctance solenoid assembly can be positioned within the housing and capable of being coupled to inverters that communicate with an electronic control unit. The switched reluctance solenoid assembly includes at least two switched reluctance stator assemblies and a rotor that is coupled to the shaft. The rotor can also include an integral pinion and is movably positioned within the switched reluctance stator assemblies. The rotor is capable of linear and rotational movement.10-11-2012
20120299451Stator assembly for motor and motor including the same - There are provided a stator assembly for a motor and a motor including the same. The stator assembly includes a base supporting a core having a coil wound therearound, the coil generating rotational driving force; a printed circuit board disposed between the core and the base and electrically connected to a lead wire of the coil; and a penetration part formed to penetrate through the base to thereby allow the printed circuit board to pass therethrough.11-29-2012
20100327709SEMICONDUCTOR MODULE AND ELECTRONIC CIRCUIT-INTEGRATED MOTOR DEVICE USING SAME - A V1 semiconductor module has a coil terminal, which is directly connectable to a lead wire of a coil. As a result, the number of parts required to connect electronic parts is reduced. Further, since no printed circuit board is required, the coil terminal can be shaped in any size without being limited in correspondence to the thickness of a copper film of the substrate. The coil terminal and control terminals, which are connected to the printed circuit board having a control circuit for controlling current supply to the coil, are provided on different wall surfaces of a resin part. Thus, the coil and the printed circuit board can be readily connected to the coil terminal and the control terminals, respectively, resulting in simplification of the device.12-30-2010
20110037356RECTIFYING DEVICE OF VEHICLE ALTERNATOR - A highly reliable rectifying device of a vehicle alternator capable of improving the vibration resistance of a diode. A connection lead 02-17-2011
20120319541DEVICE FOR SUPPLYING ELECTRICAL CURRENT TO AN ELECTRIC FAN SET OF A MOTOR VEHICLE - The invention relates to a device for supplying electrical current to an electric fan set of a motor vehicle, said device comprising a brush-holder plate (12-20-2012
20120319542INVERTER-INTEGRATED DRIVING MODULE AND MANUFACTURING METHOD THEREFOR - Phase coils are each configured by winding a conductor wire in a concentrated winding consecutively on three circumferentially consecutive tooth portions, six inverter units of an inverter module are each disposed in close proximity to a motor so as to face each of the phase coils axially, and the motor and the inverter module are electrically connected by connecting an alternating-current output terminals of each of the plurality of inverter units to output wires of the phase coils that face the inverter units axially.12-20-2012
20120091865Power unit for an electrical steering system - Disclosed is a power unit for an electric steering system and a method for assembling such a power unit. The power unit comprises a motor and a control unit, wherein the control unit is connected to the motor by means of shrink fitting.04-19-2012
20130093296METHODS AND APPARATUS FOR REDUCING SIZE AND COSTS OF MOTOR CONTROLLERS FOR ELECTRIC MOTORS - An electric motor that includes an electronic motor controller is described. The electronic motor controller includes a motor management circuit and a power supply circuit physically separate from the motor management circuit. The motor management circuit includes an insulated metal substrate, driver components operably attached to the insulated metal substrate and operable to provide output signals for application to windings of the electric motor, at least one current sensor operable for sensing an amount of current applied to the windings of and electric motor, and at least one control device operably attached to the insulated metal substrate for controlling operation of the driver components. The power supply circuit includes a composite circuit card and power processing components operably attached to the circuit card and operable to convert an input voltage into at least one output voltage to be supplied to the motor management circuit.04-18-2013
20100308700AUTOMOTIVE DYNAMOELECTRIC MACHINE - An inverter power module includes: a heatsink that is shaped into a ring-shaped flat plate; a plurality of power MOSFETs that are mounted onto substrates, and mounted to a front surface of the heatsink; a circuit board that is a resin-molded body into which a plurality of inserted conductors are insert molded; and a bus bar that is fixed to the heatsink so as to be disposed on an opposite side of the circuit board facing the heatsink, and that is connected to a power source line of an inverter power circuit by means of a battery electric potential connecting terminal, the heatsink is electrically connected to the rear bracket by being fixed to the rear bracket, and the rear bracket is connected to a ground line of the inverter power circuit by means of the ground electric potential connecting terminal.12-09-2010
20130187517ELECTRIC POWER STEERING DEVICE - An electric power steering device includes a first housing 07-25-2013
20130193813INTEGRATED HIGH-VOLTAGE DIRECT CURRENT ELECTRIC POWER GENERATING SYSTEM - An integrated high-voltage direct current (HVDC) electric power generating system (EPGS) comprises a permanent magnet generator (PMG) including a PMG stator and a PMG rotor, wherein the PMG is disposed within a PMG housing. Also included is an armature winding operably connected to the PMG and a first rectifier for converting high-voltage AC from the armature winding, wherein the armature winding is in communication with a first boost inductor, wherein the armature winding, the first rectifier and the first boost inductor are each disposed within the PMG housing. The armature winding is operably connected to a second rectifier for converting high-voltage AC from the armature winding, wherein the armature winding is in communication with a second boost inductor, wherein the armature winding, the second rectifier and the second boost inductor are each disposed within the PMG housing.08-01-2013
20080290763AUTOMOTIVE ALTERNATOR - A circuit board heatsink 11-27-2008
20130207525RECTIFIER ARRANGEMENT HAVING SCHOTTKY DIODES - A rectifier system having press-in diodes that contain a Schottky diode as semiconductor element. The Schottky diodes are operated in an operating range in which the diode losses increase as the temperature increases.08-15-2013
20130088125DRIVING DEVICE FOR AN ELECTRIC EYELASH BRUSH - An electric eyelash brush includes a rotatable member, a contact plate unit, a connector and a motor. The rotatable member has multiple holes on the top thereof and multiple ribs extend upward from outside periphery of the rotatable member. The contact plate unit has two contact plates and each contact plate has a horizontal end and a vertical end which abut against the inside of the hole. The horizontal end has two contact points respectively located on two sides thereof and the contact points are located on the top of the rotatable member. The connector has multiple slots corresponding to the ribs. The motor has a shaft at one end and has two conductive plates at another end. The motor is connected to the connector and the conductive plates are passing through the connector and corresponding to the contact plate unit.04-11-2013
20100039003ELECTROMOTIVE ACTUATING DRIVE - An electric motor actuating drive for actuating elements designed such that the drive train, which is formed from spur gears, is not self-locking, and such that a braking spring is operatively connected to a gearbox stage upstream of the output-drive element of the drive train, such that, when the drive motor is disconnected, the actuating element is effectively prevented from being moved even when attempts are made to move it by external force or by extreme force. Furthermore, the actuating drive is in the form of a spring return and is equipped with a drive spring which is arranged such that the load on it is removed in the event of electrical power failure, and it therefore acts as a drive element. Furthermore, the electrical components are arranged in an end-face housing wall for a compact design.02-18-2010
20120256524STARTER MACHINE SYSTEM AND METHOD - Embodiments of the invention provide a starter machine control system including an electronic control unit. The control system can include a starter machine that is in communication with the electronic control unit. The starter machine can comprise a solenoid assembly that includes at least one biasing members and a coil winding. The starter machine can also include a motor that is coupled to a pinion. The motor can include a field assembly and an armature assembly. The field assembly can include a support body and permanent magnets that are supported within the support body. A plurality of flux members can be disposed between the permanent magnets. A plurality of windings can be disposed around the flux members and can be coupled to a control circuit.10-11-2012
20130154449Disk-shaped multi-combined three-dimensional permanent magnet motor - A disk-shaped multi combined three-dimensional permanent magnet motor is provided. Two independent disk-shaped stators are respectively provided on a left side and a right side in a shell. A disk-shaped rotor with permanent magnets adhered on both a left face and a right face thereof is provided between the two independent disk-shaped stators. Spindle hole in the center of the rotor is coupled with a spindle of the main dynamical axis. Nine motor winding coils provided in side face slots of the disk-shaped stators are a unit for one motor. The left and right stators serve as one group to determine pole-pairs number of the motor which further determines numbers of the permanent magnets adhered. The motor is capable of driving load at low speed and meeting the function requirements of low-speed and high torque, which greatly improve efficiency of the whole machine.06-20-2013
20130057120HERMETIC ELECTRIC COMPRESSOR - An object is to provide a hermetic electric compressor that can simplify the installation structure of an internal protector and improve the ease-of-assembly thereof.03-07-2013
20090091218TEMPERATURE PROTECTION DEVICE FOR BRUSHLESS DC MOTOR - A temperature protection device for a brushless DC Motor, wherein a thermal fusing type protector is provided at a depression formed on a casing of the plastic-packaged brushless DC Motor. In this way, the thermal fusing type protector can be provided conveniently at a position where the casing temperature is highest after plastic packaging, and if the protector is fused due to high temperature, it can be replaced easily.04-09-2009
20090153000MOTOR, THERMISTOR, AND MANUFACTURING METHOD OF THE SAME - A thermistor device configures part of an electrical path from a motor feeder section to an armature. A recess defining wall defines an accommodating recess, which accommodates the thermistor device. The thermistor device includes a plate-like thermistor element. A first conductive plate and a second conductive plate sandwich the thermistor element. A pair of first projections 06-18-2009
20080238268Brushless automotive alternator having easily-replaceable protective resistor - A brushless alternator includes a stationary field winding, a rotor, a stator, a rectifier, a terminal, and a protective resistor. The stationary field winding creates a magnetic flux. The rotor creates a rotating magnetic field with the magnetic flux created by the field winding. The stator includes three different-phase windings to generate a three-phase AC power in the rotating magnetic field created by the rotor. The rectifier rectifies the three-phase AC power generated by the stator into a DC power. The terminal is provided so that AC power generated by one of the three windings of the stator can be output from the alternator to external through the terminal. The protective resistor is electrically connected between the terminal and the one of the three windings of the stator to protect the alternator from electrical damage.10-02-2008
20090140614STATOR OF A DYNAMOELECTRIC MACHINE EQUIPPED WITH TEMPERATURE DETECTION - A stator for a dynamoelectric machine includes a stator body having slots and a winding system positioned in the slots of the stator body and having coils terminating in winding heads on end faces of the stator body, wherein each slot receives different coil sides of neighboring coils. Arranged between the coil sides in at least one of the slots is a temperature sensor to ascertain a temperature in the stator, in particular between the coil sides of the winding system in the slots of the stator.06-04-2009
20120200204REGULATOR OF VEHICLE AC GENERATOR - A regulator of a vehicle AC generator is formed of an IC regulator of a mold package type and a regulator holder having an IC regulator mount portion. A press-fit fitting structure (08-09-2012
20090026894ROBUST STATOR WINDING TEMPERATURE SENSOR - Disclosed herein, among other things, is a stator winding temperature sensor. According to an embodiment, the sensor includes at least one sensing wire coil adapted to be connected to a stator. The sensor also includes a body, including a core material surrounding at least a portion of the sensing wire coil, and a laminate material over the core material. The body has a thickness adapted to protect the sensing wire coil. The sensor includes a lead wire adapted to connect to an external monitoring device. The sensing wire coil is electrically connected to the lead wire at a lead step portion of the sensor. In addition, the sensor includes a tab extending from the lead wire and encompassing the lead step. The tab protects the lead step and the sensing wire coil in a region where the sensor extends over an end of the stator.01-29-2009
20110254411SEMICONDUCTOR MODULE AND MOTORIZED EQUIPMENT USING THE SAME - In a power module having two systems of inverter circuits for driving an electric motor of a motorized equipment, a wiring board mounted with power transistors and shunt resistances is embedded in a plate-like mold section. A plurality of lands have radiation surfaces exposed from the mold section. The radiation surfaces of a first land row constituted by a first group of the lands are provided on the same plane and the same straight line, and the radiation surfaces of a second land row constituted by a second group of the lands are provided on the same plane and the same straight line. The radiation surfaces of the first and second land rows are in surface-to-surface contact with a heat sink through insulation radiation sheets to dissipate a heat generated by the power module.10-20-2011
20110080073MOTOR DRIVE WITH A DEVICE FOR SAFE FITTING WITH A CIRCUIT BREAKER - A motor drive includes a device for safe fitting of the motor drive with a circuit breaker. In at least one embodiment, the device includes a first cover, whose position can be altered, for example by being guided in slotted links, in such a way that only the receiving opening provides a free space for receiving the handle, owing to the overlap by the first cover, and therefore it is only possible for the circuit breaker to be fitted on the motor drive when the handle is in the corresponding position.04-07-2011
20110080072STATOR ARRANGEMENT FOR AN ELECTRIC MOTOR - A stator arrangement for an electric motor. The stator arrangement including a laminated stator core with stator windings running through stator grooves and forming winding overhangs at each end face of the laminated stator core. The stator arrangement also includes an interconnection unit having a switching disk covering the winding overhangs on one end face of the stator. The switching disk further including at least one temperature monitor mounted thereon for monitoring the temperature of the stator windings. The temperature monitor being seated in a holding pocket that is resiliently connected to the switching disk in such a manner that, when positioned in one of the stator grooves, it is resiliently biased into engagement with a stator winding.04-07-2011
20080297011INTEGRATED CONTROLLER/MOTOR WITH THERMAL OVERLOAD SENSOR - An integrated controller/motor energized by a power supply includes a controller that has controller circuits and a pair of controller lead lines connectable in circuit between the power supply and the controller circuits. The integrated controller/motor also includes a motor that has a first motor winding and a second motor winding each in circuit with the controller circuits and a thermal overload sensor located in direct proximity to the first motor winding and the second motor winding. The thermal overload sensor may be connected in series with at least one of the controller lead lines. A method of protecting an integrated controller/motor from thermal overload is also presented.12-04-2008
20120043863Electrical Machinery and Apparatus - In an electrical machinery and apparatus, a storage space is formed along an extension direction of a strand, and a temperature sensor is installed in the storage space of the strand, so that temperature of the strand can be immediately measured, and no pressure is applied to the temperature sensor in the process of forming a ground wall insulation thereby the temperature of the strand can be accurately measured.02-23-2012
20100301713MOTOR ARRANGEMENT WITH AN ELECTRONIC ISOLATING RELAY MODULE - The invention relates to a motor arrangement, in particular for use in an electronic steering system, comprising a polyphase motor (12-02-2010
20130200758ELECTRIC MOTOR FOR DRIVING A MOTOR VEHICLE COMPONENT - An electric motor for driving a motor vehicle component, in particular a fan motor for chilling cooling water, contains a rotor that includes a commutator, against which a brush rests in a contacting manner. A plastic-sheathed pressed screen for forming a current path that is embossed in an electric insulation is connected to the brush. The current path conducting a motor current is interrupted to form two spaced-apart current path ends. An interruption point is bridged by a contact spring that is used as a temperature fuse and consists of two spring legs, each of which has a fixing end and a free end. Each fixing end of the spring legs is connected to a current path end, while the free ends thereof are in contact with each other using a soldered connection so as to bias the spring.08-08-2013

Patent applications in class Condition responsive (e.g., position, torque, etc.)