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7630620 |
Apparatus and method for measuring an acceleration to determine a camera dome's required motor holding current
A system and method for reducing vibration in a dome camera security system is provided in which the heat produced by the motors is reduced as well. The dome camera system is equipped with an...
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7627922 |
Nodal mounted system for driving a power appliance
The power toothbrush, which has a rotating brushhead movement, includes a housing with a motor mounted therein having an armature which in operation rotates through an arc of predetermined...
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7626309 |
Method of balancing an embedded permanent magnet motor rotor
A method of balancing an embedded permanent magnet motor rotor includes the steps of: a) providing a non-magnetic cylindrical shaft having an axis of rotation and a generally cylindrical surface...
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7605506 |
Electric motor with reduction gear mechanism
In a wiper motor including a motor body and a reduction gear apparatus, an accommodating case is integrally provided on a brush holder provided to the motor body, and this accommodating case is...
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7589447 |
High speed aerospace generator resilient mount
Centering rings may be used to modify the combined resonance of a rotor and its support assembly to migrate the rotor critical speeds such that they can be engineered out of the rotor operating...
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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...
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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...
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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...
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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....
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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...
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7535137 |
Alternator
An automotive alternator includes: a case; a shaft; a rotor that is fixed to the shaft; a stator that is fixed to an inner wall surface of the case; and a rectifier apparatus that is disposed...
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7525825 |
Snap in high power, high current connector with integrated EMI filtering
A filter assembly is provided which includes a Faraday cage interface. Electrical noise is filtered by the Faraday cage interface. The Faraday cage interface is configured to prevent passage of...
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7521831 |
Ultra-slim spindle motor
A spindle motor, which includes a bearing to rotatably support a rotating shaft, a bearing holder to securely hold the bearing therein, a base to securely support the bearing holder thereon, a...
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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...
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7501727 |
Alternator voltage control apparatus
An alternator includes: a rotor fixed to a shaft so as to rotate with the shaft; a stator disposed so as to surround the rotor, an alternating current being generated in the stator by a rotating...
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7466054 |
Aerodynamic insert for high speed permanent magnet motor
An insert comprising a lightweight structure configured for filling the gaps between axially spaced C-shaped lamination stacks and circumferentially spaced non-magnetic cradles on a permanent...
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7462972 |
Commutator for an electric machine
A commutator for an electric machine comprises a support member made from insulating molding compound, a plurality of metal conductor segments ( 3 ), disposed thereon in evenly spaced manner around...
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7434240 |
Spindle motor including a ball cover having decelerating portion
Provided is a spindle motor comprising a stator and a shaft provided in the stator. A rotor is coupled with the shaft, and a turntable is connected with the shaft. The turntable has a ball...
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7417345 |
Fan assembly with magnetic thrust bearings
A motor. The motor includes a stator, a rotor, a top magnetic structure, and a bottom magnetic structure. The stator is disposed in a frame. The rotor is also disposed in the frame, corresponding...
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7405500 |
Bonding apparatus
A wire bonding apparatus 10 including an X table 18 guided to move in the X direction on an XY table base 14 and a driving motor 20 mounted on a motor base 16 with the movable element 22...
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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...
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7382068 |
Spindle motor and stator structure thereof
A spindle motor includes a stator structure and a rotor structure coupled to the stator structure. The stator structure has a stator base, a magnetic conductive structure surrounding the stator...
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7355312 |
Brushless Motor
Small brushless motor having high output and small torque ripple. The brushless motor includes induction voltage adjusting means. With this, induction voltage of each phase of the stator is...
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7355306 |
Motor driven blower support system
A drive motor is supported and fixed onto a motor support plate composing a support member through vibration proof rubber which damps vibration, the frequency of which is not less than 1 kHz. Due...
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7342331 |
Multi-plane flexible rotor balancing
A rotor balancing system is provided that includes a rotor core, a plurality of core channels, a support wedge, a wedge channel, and balance masses. The rotor core includes an annular section, a...
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7332846 |
Damping device
A damping device for damping speed irregularities of a rotating shaft includes an armature having at least one armature part made of a non-ferromagnetic, electrically conductive material. An...
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7320542 |
Blender with cooling/muffling functions
A blender includes a base frame, a cover for covering the base frame, a muffler housing, a motor, and a fan. The base frame includes a hollow column having a compartment for receiving the motor....
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7317267 |
Mounting arrangement for a refrigerator fan
A mounting arrangement for a refrigerator fan, comprising an electric motor ( 11 ) to whose shaft is affixed a propeller ( 12 ) with an axial flow passing through a refrigerated air outlet ( 4 b )...
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7298061 |
Motor driving unit and vehicle-door mirror
A motor driving unit includes an electric motor and a motor drive control circuit board that is disposed in a position facing the electric motor at a predetermined distance from the electric motor....
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7291946 |
Damper for stator assembly
A damper for a stator assembly, the stator assembly comprising a stator segment and a seal mounted to the stator segment. The damper locates between the stator segment and the seal, and comprises:...
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7282125 |
Contact element holder
A contact element holder, in particular a brush holder for commutator or wiper ring machines, has a carrier that can be secured to the machine housing and at least one quiver, held on the carrier...
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7276826 |
Spindle motor and disk drive device
A simple construction causes a spindle motor rotor to be eccentric in a pickup moving direction and improves axial run-out caused by clearance between a rotating shaft and a bearing. A magnetic cap...
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7276823 |
Active vibration damping device
An active vibration damping device having a solenoid actuator designed with a movable element positioned inserted into a guide hole of a stator having a yoke member is attached about a coil to form...
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7273357 |
Control device for electric compressor
A control device includes a shot-pulse control unit that provides, at a time of starting a synchronous motor, a predetermined current to each phase of a stator of the motor for a short time; a...
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7271518 |
Balancing structure for motor
A motor includes a fixed portion, a rotor, and at least one balancing plate fixed on the fixed portion. The fixed portion includes a stator having a plurality of pole plates that extend to form a...
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7265464 |
Balancing structure for motor
A motor includes a fixed portion, a rotor, a balancing plate, and at least one sensor mounted on the fixed portion. The fixed portion includes a stator having at least one winding and a plurality...
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7259484 |
Brushless motor
A brushless motor 100 is composed of a motor base 10 , a rotary shaft 25 rotatably supported by the motor base 10 through bearings 22 and 23 , a back yoke 20 in a shape of flat plate...
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7251962 |
Washing machine with structure for absorbing vibration of driving part
A washing machine with a vibration-absorbing structure for preventing the transfer of the vibration of the driving part is disclosed. The washing machine includes a rotor housing 50 in which a...
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7230362 |
Brush holder for an electric-motor driven actuator and an electric-motor driven actuator
An electric-motor driven actuator has a housing, in which a motor and a carrier plate are arranged and the carrier plate is connected in a fixed manner to a brush holder. The brush holder has a...
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7221070 |
Electric appliance with terminal
An electric appliance has a first terminal and a second terminal electrically connected to the first terminal. The first terminal has a soldering portion for soldering the second terminal thereon....
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7221069 |
Balancing structure for motor rotor
A motor includes a fixed portion having a stator with at least two pole faces. Each pole face includes a strong magnetic section and a weak magnetic section for respectively creating stronger and...
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7215050 |
Fixing unit for an electric motor
The invention relates to a fixing unit comprises a multi-part, electrically conductive base body provided with connections for the electric power supply of the electrically conductive basebody and...
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7211911 |
Automotive alternator having vibration-absorbing member disposed between rear frame and cover member
An automotive alternator includes a rear frame having a rear end wall and a cover member covering a brush device. The cover member is connected to the rear end wall of the rear frame, and a...
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7196438 |
Resilient isolation members and related methods of reducing acoustic noise and/or structural vibration in an electric machine
A resilient isolation member is configured for use with an electric machine having a housing, a stator within the housing, and an end shield. The resilient isolation member includes first and...
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7187106 |
Positioning mechanism, exposure apparatus and device manufacturing method
The present invention provides a positioning mechanism and an exposure apparatus that can be used in a vacuum ambience and has a damping function with small degassing and small dust creation. A...
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7182585 |
Electrically driven flow compressor
The invention relates to an electrically driven flow compressor comprising a drive ( 2, 3 )—and a flow compressor and a converter ( 5 ) for electrical supply and control of the drive unit ( 2, 3...
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7170207 |
Motpor device capable of reducing cogging torque
A motor device capable of reducing cogging torque includes a stator assembly and a rotor assembly, which is movably disposed in the stator assembly. The rotor assembly provides a magnetic...
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7166950 |
Structure of driving unit in drum type washing machine
Structure of driving unit in a drum type washing machine including a tub mounted inside of a cabinet, a drum mounted inside of the tub, a shaft connected to the drum mounted inside of the tub for...
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7166940 |
External rotor motor
An external rotor motor is disclosed, which features a stator ( 11 ) and a rotor ( 13 ) surrounding the stator ( 11 ) while leaving an air gap. A damper ( 16 ) made of an elastic material is...
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7157817 |
Drum drive with damping device for damping vibrations
The invention relates to a drum drive that delimits an interior space intended for receiving an electromotor for producing a rotating movement of the drum. The electromotor comprises a stator,...
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