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| Number | Title | Issue Date |
| 8183726 | Electric motor assist bicyle Methods, systems and apparatus for an electric motor assist bicycle having a hub motor mounted to the front or rear hub to provide electric motor assist, and to function as a generator to charge batteries. The motor can be either a molded or wound magnetic flux chan... | 05/22/2012 |
| 8148860 | PMDC motor A PMDC motor, particularly for driving an automobile liftgate, comprises a stator and a rotor rotatably mounted to the stator. The stator comprises a housing and an end cap mounted to one end of the housing. The end cap comprises: a first brush, a second brush, a fi... | 04/03/2012 |
| 8004129 | Electrical 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 curre... | 08/23/2011 |
| 7911093 | Converter motor In a converter motor, the converter unit and the electric motor together form a mechatronic unit. The converter unit is located behind the electric motor and is thermally coupled with the rear bearing shield. The converter unit includes a through hole, through which... | 03/22/2011 |
| 7902700 | Low harmonic loss brushless motor A brushless permanent magnet motor has a rotor supported to rotate about an axis of rotation, and a stator that is stationary and magnetically exerts torque upon the rotor. The rotor has a ferromagnetic backiron and a circumferential array of alternating polarity ma... | 03/08/2011 |
| 7872383 | Power interconnecting part for electrical rotating machine A power interconnection piece for a rotary electrical machine, wherein the power interconnection piece comprises at least one power track provided with electrical power terminals intended to cooperate with a power track of at least one electronic module so as to dis... | 01/18/2011 |
| 7863785 | High power-density static-field ac conduction motor An ac motor for high-torque drive has a transformer with a magnetic circuit with a central limb. Either the two ends or the two connected electrodes of the secondary winding of the transformer project at an angle to the longitudinal axis of the secondary winding; an... | 01/04/2011 |
| 7839033 | Brushless 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 t... | 11/23/2010 |
| 7834488 | Electric linear drive unit The invention proposes an electric linear drive unit with an electric linear motor that is arranged in or on a basic housing. A sensor device arranged in or on the basic housing serves for determining at least one position of a driving element that is driven by the ... | 11/16/2010 |
| 7800264 | Assembly of electronic components for electrical rotating machine An assembly of electronic components for a rotary electrical machine and power and signal interconnection pieces cooperating with the electronic components in order respectively to distribute power to the electronic components and convey control signals between elec... | 09/21/2010 |
| 7759831 | Switching 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 a... | 07/20/2010 |
| 7741741 | Drive apparatus for a washing machine A drive apparatus for a washing machine includes an electric motor, a drive shaft connected to the electric motor for rotary drive, a fan for cooling the electric motor and electronics for controlling operation of the electric motor. In order to achieve a compact co... | 06/22/2010 |
| 7719147 | Electric motor A multi-phase electric motor comprises a stator comprising a plurality of wire coils surrounding a non-magnetizable core; a rotor with permanent magnets embedded therein, the rotor being disposed adjacent to the stator, the rotor being mounted on a rotatable drive s... | 05/18/2010 |
| 7683511 | Power converter and related method A power converter that is arranged in series with a motor to form a unitary structure through which an output shaft extends is provided with a plurality of coolers and a power semiconductor module mounted on a cooling surface of at least one of the plurality of cool... | 03/23/2010 |
| 7663275 | Linear compressor controller A sensorless method and apparatus for detecting piston collisions in a free piston linear compressor motor. The waveform of the back EMF induced in the motor stator windings is analysed for slope discontinuities and other aberrations in a time window centred on the ... | 02/16/2010 |
| 7663274 | Motor A motor stator section (3a) is furnished with a busbar (51) attached to an armature (3), and with a circuit board (52) attached to the busbar (51). A parts accommodation recess (516) is formed in the busbar (51... | 02/16/2010 |
| 7646120 | Automotive alternator The automotive alternator according to the present invention includes: a case; a rotor that is disposed inside the case and that is fixed to a shaft; a stator that is disposed so as to surround the rotor and in which alternating current arises by means of a rotating... | 01/12/2010 |
| 7622834 | Brushless 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 t... | 11/24/2009 |
| 7615898 | Integrated stator and rotor for a DC brushless ceiling fan motor A stator and rotor for a DC brushless ceiling fan motor includes an integrated design of the stator and rotor to form an integrated stator, the integrated stator is made of a permeable material and is formed by means of a secondary production process. The DC brushle... | 11/10/2009 |
| 7610973 | Automotive electric motor-generator apparatus An inverter unit is provided with: a case for housing a circuit board on which switching elements, diodes, and a capacitor are mounted; and a heat sink constructed integrally with the case. The inverter unit is mounted to an upper portion of the rotary electric mach... | 11/03/2009 |
| 7608950 | Traction motor shaft connected to vehicle ground via drive gear In order to prevent bearing currents, particularly in converter-operated traction motors (1), the housing (11) is grounded via a grounding capacitor (Cground). ... | 10/27/2009 |
| 7554230 | Control circuit device for motor, method for manufacturing the device, and motor having the device A control circuit device for a motor is provided with a circuit board which has an electrically-conductive terminal for electrically connecting the motor with an exterior connector, a heat radiating unit which is connected with the circuit board to radiate heat gene... | 06/30/2009 |
| 7521827 | Motor ground seal A shaft seal assembly is disclosed having a stator including a main body and axial and radial projections therefrom. The rotor is radially extended and encompasses the axial and radial projections from said stator. A passageway formed between the radial projection o... | 04/21/2009 |
| 7511393 | Motor and brush holder thereof A brush holder of a motor is provided with a holder body portion and a connector portion, which are integrally formed from a resin. The holder body portion is installed in a yoke housing of the motor to hold a brush to be in slide contact with a commutator. The conn... | 03/31/2009 |
| 7479718 | Electric rotating machine An electric rotating machine comprises: a stator; a rotor that includes a rotary shaft, and rotates coaxially with the stator; a bracket supporting and fixing the stator, and supporting rotatably the rotary shaft; a rotational position detector disposed on the side ... | 01/20/2009 |
| 7456531 | Switching 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 (100) includes a control circuit (20), an alternator (50), electrode plates (83, 84), and switching devices (SW1 to SW6). The electrodes plates (83, 5 84) have a substantial horseshoe shape... | 11/25/2008 |
| 7439642 | Brushless DC motor and magnetic compensation method thereof A magnetic compensation method for a brushless DC motor. The method of magnetic compensation for the motor provides the magnetic element disposed adjacent to the magnetic sensor to compensate the magnetic sensor for an unnecessary magnetic interference, so that the ... | 10/21/2008 |
| 7436093 | Turbomolecular vacuum pump The turbomolecular vacuum pump with active magnetic bearings comprises an enclosure (110) defining a primary vacuum chamber (116), a rotor (120), an electric motor (107), an axial magnetic bearing (103), radial magnetic bearings ( | 10/14/2008 |
| 7427816 | Component carrier The invention provides a structure and method of its use comprising a filtering and interference suppression device (62), particularly of the broad band type, for an electric motor (34) comprising at least a first powering brush (16) for an arma... | 09/23/2008 |
| 7420302 | Mid shield bearing support of an electric motor An electric motor includes a motor enclosure, a motor-bearing assembly, a motor control unit, a mid shield, and a bearing. The motor-bearing assembly is configured for placement within the motor enclosure and has a shaft extending therefrom. A portion of the motor c... | 09/02/2008 |
| 7420312 | Rotating electrical machine Provided is a rotating electrical machine including an armature core on which an armature winding is wound; a rotor core which is supported by a rotation axis at a predetermined air gap in an inner diameter side of the armature core, and includes claw-shaped magneti... | 09/02/2008 |
| 7414337 | Scrubber A tool having a housing into which a motor assembly and a battery assembly are inserted. A circuit board can be employed to electrically connecting the battery assembly to the motor assembly even if the battery assembly and the motor assembly are not disposed in an ... | 08/19/2008 |
| 7411324 | Generator-motor A generator-motor includes an alternator, electrode plates, a substrate, MOS transistors, and an MOS driver. Electrode plates are arranged on an end surface of the alternator so as to substantially form a U-shape to surround a rotation shaft of the alternator. MOS t... | 08/12/2008 |
| 7411325 | High efficiency combination motor and drive A brushless permanent magnet motor has a rotor constructed of spaced ferromagnetic backirons and a circumferential array of alternating polarity magnetic poles that drive magnetic flux back and forth across an armature air gap between the backirons. A stator include... | 08/12/2008 |
| 7400071 | Selectively configurable electric motor A selectively configurable electric motor comprises a stator and a plurality of poles electrically coupled to the stator. The selectively configurable electric motor also includes an actuator separated from the poles by an air gap and configured to move relative to ... | 07/15/2008 |
| 7394176 | Electric drive with sensor mounted on printed circuit board An electric drive (1) with a motor housing (16), a bearing plate (4), an electrically insulating brush holder plate (3) with formed-on plug housing (11), a printed circuit board (13) with plug lugs 14 which project th... | 07/01/2008 |
| 7392565 | Tandem windshield wiper system with bellcrank linkage A tandem windshield wiper system including a first windshield wiper assembly having a first lever arm that is adapted to operatively move in a repeated wiping motion across the surface of a windshield. A second windshield wiper assembly having a second lever arm is ... | 07/01/2008 |
| 7389561 | Tandem windshield wiper system with direct drive motor A tandem windshield wiper system that includes at least one brushless DC motor to provide drive torque through an output that is rotatable about the longitudinal axis of the motor. A first windshield wiper assembly having a first lever arm is driven by the motor abo... | 06/24/2008 |
| 7391137 | Circuit arrangement for EMC interference suppression for a direct current motor and a switching module The invention relates to a circuit arrangement and a switching module, in which an attenuator is, for EMV suppression of a DC motor, connected to the lines of the DC motor. The attenuator comprises a ferrite, particularly a common mode ferrite. ... | 06/24/2008 |
| 7378767 | AC dynamo electric machine with magnetic reluctance portion linking rotational position detector to AC dynamo electric machine body An AC dynamo electric machine for a motor vehicle includes an AC dynamo machine body 100 composed of a rotor 10 constituted by a first rotatable shaft 12 supported rotatably by a pair of bearings 16, 17, a rotor core 8 fixedly secu... | 05/27/2008 |
