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| Number | Title | Issue Date |
| 8421283 | Electric motor drive, in particular fan drive An electro-motor drive, in particular for a fan drive of a motor vehicle, includes a commutator motor, a motor shaft of which is rotatably mounted on axially opposite sides in shaft bearings facing away from the bearing shield in order to substantially dampen the so... | 04/16/2013 |
| 8410646 | Motor damping structure for actuator device A motor damping structure for an actuator device includes a motor housing and a casing. The motor housing includes a drive motor therein. The casing includes an upper actuator case and a lower actuator case to accommodate the motor housing therebetween, the casing i... | 04/02/2013 |
| 8350422 | Rotating electrical machines A torsional vibration damper is integrated into a rotating electrical machine. A rotatable assembly of the electrical machine includes a rotor core pack having a first end and a second end. The integrated torsional vibration damper consists of a torsional elastic co... | 01/08/2013 |
| 8344562 | Fan motor apparatus for vacuum cleaner A fan motor apparatus for a vacuum cleaner is provided. The fan motor apparatus may include a fan motor, an outer casing surrounding at least a part of the fan motor, wherein the outer casing includes a discharge portion having a discharge port; and, a noise-absorbe... | 01/01/2013 |
| 8319380 | Method of tuning bending and torsion stiffness of ducted rotor core of an induction motor Electrodymamic machine rotating mass, including for example induction motor rotors, stiffness tuning methods include selective orientation and compression of modular tie rod assemblies into through bores formed in the rotor lamination core outboard of the rotor shaf... | 11/27/2012 |
| 8310116 | Brushless motor and manufacturing method thereof Each of vibration dampers is separated from each circumferentially adjacent one of the vibration dampers upon cutting of each of a plurality of connectors, which is initially integrally formed with the vibration dampers to circumferentially join between correspondin... | 11/13/2012 |
| 8299660 | Motor fixing structure and motor assembly A motor fixing structure and a motor assembly capable of reducing vibration of a motor and also maintaining a compact configuration. The motor assembly includes a motor, a fixing member disposed to be spaced from the motor by a predetermined spacing distance, and a ... | 10/30/2012 |
| 8299661 | Rotor of brushless motor Some embodiments of the present disclosure provide a rotor of an electric brushless motor configured to be light weight and prevent vibrations generated during an operation of the motor to be transferred to the shaft of the rotor. The rotor includes a shaft elongate... | 10/30/2012 |
| 8247932 | Method for mitigating bearing failue in an AC induction motor and apparatus therefor A method and apparatus for mitigating bearing failure in an AC induction motor includes installing a high frequency mechanical vibration-absorbing material between various components of the motor. With the vibration-absorbing material in place, the number of prematu... | 08/21/2012 |
| 8207639 | Motor and heating dissipating fan including motor having an annular balancing member A motor includes a balancing member having a surface, a shaft coupling portion and a magnetically conductive portion. A stator is coupled to the balancing member. A rotor includes a hub, a shaft, and a permanent magnet. The shaft and the permanent magnet are mounted... | 06/26/2012 |
| 8089182 | Image forming apparatus A motor assembly to minimize deformation of a vibration-proof member and to achieve stable motor mounting configuration, as well as an image forming apparatus employing the motor assembly, are disclosed. The motor assembly includes a motor, a fixing member to which ... | 01/03/2012 |
| 8080907 | Rotor of brushless (BL) motor The present invention provides a rotor of a brushless (BL) motor, including: a high-strength engineering plastic member formed by injection-molding high-strength engineering plastic around a concavo-convex portion 12a formed on the outer circumferentia... | 12/20/2011 |
| 8018100 | Permanent magnet motor having an axially magnetized pull magnet A permanent magnet motor having an axially magnetized pull magnet consisting of a baseplate on which a stator lamination stack having stator windings is disposed, wherein a hub is disposed opposite the baseplate, the hub being connected to a shaft that is supported ... | 09/13/2011 |
| 8018101 | Motor A motor may include a rotor having a rotation shaft, a stator disposed on an outer peripheral side of the rotor, an output side bearing which supports an end part on an output side of the rotation shaft in a radial direction and an axial direction, a frame which is ... | 09/13/2011 |
| 8013481 | Detuner for tuning torsional mode of a rotating body A solution is provided for tuning the frequency of a torsional mode of interest of a rotating body (such as a generator rotor torsional mode) by adding a detuner to act as an undamped torsional vibration absorber. The detuner may be coupled to an overhung shaft exte... | 09/06/2011 |
| 7956499 | Motor magnetic force attenuator Motors having a magnetic force attenuator are described. In some embodiments, the motors comprise a stationary member having a base and a stator, a rotating assembly having a magnet and a magnetic force attenuator to attenuate the magnetic attraction force between t... | 06/07/2011 |
| 7936098 | Rotary electric machine A rotary electric machine, for solving problems that a space for installing the noise insulation enclosure around the rotary electric machine and a base for installing the noise insulation enclosure are necessary, and that the noise insulation enclosure reducing the... | 05/03/2011 |
| 7893572 | Motor attachment assembly for plastic post isolation system The invention provides for a motor attachment assembly that includes an electric motor having spring clips adapted to securely lock onto the isolation posts of a plastic post vibration isolation system. The motor includes an end cap that has notches which cooperate ... | 02/22/2011 |
| 7868493 | Motor having rotation balancing member A motor includes a base, a stator mounted to the base, a rotor rotatably coupled to the base, and a balancing member. The rotor includes a permanent magnet having a first magnetically conductive face with a first width in a radial direction. The balancing member inc... | 01/11/2011 |
| 7855479 | Noise suppression structure of blower motor In a noise suppression structure of a blower motor according to the present invention, a noise reduction member is disposed inside of a peripheral wall part of an end bracket member in such a manner that the noise reduction member is located in a position opposite s... | 12/21/2010 |
| 7847444 | Electric motor assembly with stator mounted in vehicle powertrain housing and method An electric motor assembly in a vehicle powertrain is provided with a generally annular stator fit within an interior cavity of the powertrain defined by a housing. Roll pins are fit between the housing and the stator. The stator may have a plurality of first geomet... | 12/07/2010 |
| 7830049 | Motor and disk drive using the same A thrust yoke is fixed into a second recessed portion of a base with adhesive. The second recessed portion has a first surface to be in contact with the bottom surface of the thrust yoke, and a second surface axially opposing the bottom surface of the thrust yoke wi... | 11/09/2010 |
| 7812485 | Shock absorbing connector A motor, including at least a stator core (1), a shaft (2) nested around the stator core (1), and shock-absorbing connector, wherein the shock-absorbing connector is disposed between the stator core (1) and the shaft (2) so as to a... | 10/12/2010 |
| 7786628 | Rotor assembly with balancing member A rotor assembly for an electronic machine such as a motor includes a rotor on a shaft having a bearing at each end portion, the bearings being arranged to rotatably support the rotor and shaft. The assembly further includes a balancing member, from which material m... | 08/31/2010 |
| 7786629 | Electric motor mounting structure When a bracket to which an electric motor for wipers has been attached is attached to a vehicle body via a rubber mount therebetween for antivibration, vibrations generated when the electric motor is actuated are prevented from being transmitted to the body while al... | 08/31/2010 |
| 7745964 | Brushless motor In a brushless motor, a stator includes an annular core member. A rotatable shaft is placed radially inward of the core member and extends in an axial direction. A rotor is supported by the rotatable shaft. A centerpiece supports the core member and includes a cente... | 06/29/2010 |
| 7737583 | Vibration-damping rotor assembly A rotor assembly comprising: an inner rotor and an outer rotor for rotating in a magnetic field of a motor, the inner rotor comprising a main inner rotor cavity, and a plurality of first holes being formed between the inner rotor and the outer rotor; two side boards... | 06/15/2010 |
| 7696656 | Motor assembly incorporating a securely positioned electromagnetic disturbance suppression device A motor assembly (20) includes a motor (22) and an end cap (26). The end cap (26) includes an electrically insulating body (28) having a peripheral edge (30) that interfaces with a conductive housing (24) of the motor... | 04/13/2010 |
| 7696655 | Automatic balancing apparatus, rotating apparatus, disc drive apparatus, and balancer An automatic balancing apparatus is disclosed. The automatic balancing apparatus includes a plurality of magnets, magnetic fluid, and a rotatable housing. The magnets function as balancers. The rotatable housing has a moving path disposed along a peripheral directio... | 04/13/2010 |
| 7679233 | Decoupling device and method for the production of an electric motor The invention relates to a device for mounting an electric motor (10) in a manner that isolates vibrations, in particular a fan motor, wherein the electric motor (10) features at least one pole housing (12, 14) serving as a magnetic yoke circuit... | 03/16/2010 |
| 7679232 | Rotary electric machine In a power generator provided with a stator frame having a stator iron core incorporating a stator coil therein in an inner portion thereof, and a rotor in which a rotor coil rotating so as to oppose to the stator frame and the stator iron core is incorporated, the ... | 03/16/2010 |
| 7659644 | Brushless motor and manufacturing method thereof A centerpiece rotatably supports a rotatable shaft therein. A stator core is placed radially outward of the centerpiece. A generally cylindrical vibration isolator is made of a resilient material and is radially placed between the centerpiece and the stator core. | 02/09/2010 |
| 7659645 | Vibration-damping rotor assembly A rotor assembly comprising a rotor for rotating in a magnetic field of a motor, the rotor comprising a main rotor cavity and a plurality of first holes; two side boards, each side board comprising a sleeve-shaped main side board body and a disc-shaped outer side bo... | 02/09/2010 |
| 7656063 | Pump motor A rotor is accommodated in a yoke housing. Six magnets are arranged at equal intervals in the circumferential direction on the inner circumferential surface of the yoke housing so as to face the rotor. The core is generally cylindrical and includes an annular portio... | 02/02/2010 |
| 7576457 | Electric power steering apparatus An electric power steering apparatus includes; a DC brush motor, and a boss arranged between an output shaft of the motor and an input shaft driven by the motor, for transmitting a rotational force of the motor from the output shaft to the input shaft by the boss pe... | 08/18/2009 |
| 7566998 | Decoupling device and method for the production of an electric motor The invention relates to a device for mounting an electric motor (10) in a manner that isolates vibrations, in particular a fan motor, wherein the electric motor (10) features at least one pole housing (12, 14) serving as a magnetic yoke circuit... | 07/28/2009 |
| 7560837 | Automotive alternator with rotary magnetic fluctuation suppressor An automotive alternator includes a rotary shaft, a pulley, a stator, a rotor, and a magnetic fluctuation suppressor. The pulley is provided on the rotary shaft to transmit rotating power from an engine to the rotary shaft. The stator includes a stator winding. The ... | 07/14/2009 |
| 7554226 | Axial air gap type electric motor A magnetic pre-pressurizing section for pre-pressurizing the inner ring of the bearing in the axial direction by a difference of magnetic forces of permanent magnets of the two rotors is arranged. The magnetic pre-pressurizing section is constructed by a difference ... | 06/30/2009 |
| 7550881 | Vibration damper for generator or motor stator A vibration damping sleeve for a stator assembly having radial vibration isolator features at both ends is provided. At one end, the vibration damping sleeve comprises a groove for a damping element such as an annular gasket while a plurality of beams circumferentia... | 06/23/2009 |
| 7495359 | Actuator In actuators where an electric motor, via a transmission, drives an activation element intended to cause movement of an adjustable element in the structure in which the actuator is incorporated, particularly within the furniture sector, hospital beds and sickbeds. T... | 02/24/2009 |
