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7615975 |
Motor module having a deformable component that absorbs tolerances
A cable for supplying electric power to a motor is electrically connected to an inner conductor of a terminal block via a contact by a mating structure of a male connector and a female connector. A...
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7612475 |
Ceiling fan motor
A ceiling fan motor includes a housing having top and bottom casing parts, a stator disposed in the housing and having a stator axis, and a rotor unit including a mounting seat that has an inner...
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7598650 |
Motor mechanism of DC inverter-fed compressor
A motor mechanism of DC inverter-fed compressor is disclosed, wherein a motor rotor includes a first rotor layer, a second rotor layer and a third rotor layer, made up respectively of a plurality...
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7598645 |
Stress distributing permanent magnet rotor geometry for electric machines
A rotor includes a cylindrical rotor core having an outer circumferential surface and a plurality of magnet insertion holes formed in the rotor core and arranged circumferentially at a preset...
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7593630 |
Built-in multidriver device for a camera zoom lens
The built-in multidriver device for a camera zoom lens has an independent driver for each lens of a zoom lens kit, and each driver is integrated into the lens mount. A housing positions each...
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7592734 |
Three-phase permanent magnet brushless motor
A three-phase permanent magnet brushless motor comprises a stator having three-phase windings, and a rotor having a permanent magnet with a plurality of poles for serving as a field magnet. The...
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7592725 |
Motor and manufacturing method therefor
A motor includes a motor case having an opening part and a stator core disposed in an inside of the motor case. The motor case may include a bottom face part, sidewall parts extended on the opening...
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7592721 |
Torque transmission assembly for superconducting rotating machines
A rotor assembly includes a superconducting winding assembly positioned within a cryogenic region of the rotor assembly. In operation, the superconducting winding assembly generates a magnetic flux...
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7583005 |
Electric machine rotor pole piece with anti coil rotation
The apparatus disclosed herein relates to a pole piece for an electric machine comprising, a pole piece with a finger support structure, a plurality of fingers having an axial component of...
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7579743 |
Magnet rotor, movable magnet-type instrument with the magnet rotor, and stepping motor with the magnet rotor
A magnet rotor in which rotation prevention and positional displacement (rattling, and misalignment of axes) between a magnet and a rotor body can be restricted, a movable magnet type-instrument...
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7578149 |
Motor as a direct drive and method for installation of the motor
A motor having a stator and a rotor is provided as a direct drive for a laundry treatment appliance. The stator of the motor is preferably centered by a preferably cylindrical or conical...
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7576460 |
Energy conversion system
An energy conversion system that converts electrical energy to mechanical energy, and with certain power supplies can convert solar energy into mechanical energy. It operates on a timed direct...
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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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7569962 |
Multi-phase brushless motor with reduced number of stator poles
An A-phase brushless motor, where A is an integer greater than or equal to 2, includes a stator and a rotor. The stator has q stator poles, where q is an integer greater than or equal to A. The...
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7569955 |
Electric motor with heat pipes
An electric motor including a motor portion, a cooling portion and a plurality of heat pipes is provided. The motor portion includes a stator and a rotor that when energized with electric current...
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7569953 |
Rotor for hybrid type stepping motor and manufacturing method thereof
Depressed portions for being fitted with two rotor collars 51, 52 are formed in two rotor stacks 72, 71 opposed to each other in an axial direction of the rotating shaft 1 with the rotor...
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7564158 |
Three-phase synchronous machine having a permanent magnet rotor with an induction cage
The aim of the invention is to achieve a high torque yield in synchronous machines excited by permanent magnets. Said aim is achieved by using subharmonic air gap fields. The rotor comprises an...
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7564157 |
Interior permanent magnet synchronous machine
A rotating A.C. synchronous interior permanent magnet machine with concentrated windings is constructed such that each pole on the secondary-side (rotor) is provided with at least one interior...
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7554240 |
Tubular electrical machines
An improved synchronous tubular electrical machine comprises a radially outer member that has a substantially cylindrical inner surface and radially inner member that is substantially cylindrical...
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7550883 |
Rotor hub, spindle motor, and recording disk driving apparatus
A spindle motor according to an embodiment of the invention includes a rotor hub formed of a ferromagnetic material and a rotor magnet held by the rotor hub. The rotor hub has a flange having a...
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7548007 |
Rotor shaft coupling
A rotor has a rim that diverges from its peripheral portion. Accordingly, the rim more securely couples with a shaft. More specifically, the rotor has a support member with a peripheral portion and...
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7541713 |
Heat sink
A heat dissipating fan comprises a base unit having an axial sleeve, a dynamic bearing having a shaft section, a stator unit securely around the axial sleeve and a rotor unit. The rotor unit has a...
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7538469 |
Synchronous machine design and manufacturing
Synchronous motors according to the invention operate at higher efficiency, with lower cost, reduced mass and reduced cogging. Magnet dimensions are selected that reduce cogging forces to a...
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7538459 |
Disk drive device having a motor, and manufacturing method of the motor
An inner rotor type motor includes a turn table having a disk loading portion and a central opening portion arranged to allow a disk to be attached thereto and removed therefrom, a rotor concentric...
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7531924 |
Cooling and supporting apparatus for current leads of superconducting rotating machine
Disclosed is a cooling and supporting apparatus for current leads of a superconducting rotating machine. The cooling and supporting apparatus is installed on the current leads, and includes an...
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7525229 |
Hysteresis-start permanent magnet motor
A hysteresis-start permanent magnet rotor having a non-magnetic rotor shaft, a permanent magnet rigidly attached to a center portion of the non-magnetic rotor shaft, a non-magnetic spacer on each...
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7520148 |
Drum type washing machine
In one aspect, a drum type washing machine includes, among other things, a tub supporter of metal between a wall of a tub and a stator, where the stator includes an annular helical type core having...
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7514839 |
Stator with a rotary current winding, brushless direct current machine having a stator, shaped part for winding guidance for a stator with a rotary current winding, and winding method for producing a stator with a rotary current winding
A method of producing a stator with a rotary current winding, having a first and second face end. On the face end, at least one shaped part with struts for winding guidance is provided. A brushless...
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7511401 |
Rotor of motor
A rotor of a motor includes: a stator; a rotor core of a certain shape; a winding coil wound on the rotor core; and a rotor rotated by an electromagnetic interaction with the stator, in which both...
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7511400 |
Dynamo system having a freely moving flywheel in circular track
A dynamo system comprises a flywheel mounted on a shaft intermediate its ends. A circular track in the dynamo system includes an inward groove structure to keep the ends of the shaft tracked inside...
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7504755 |
Rotor of synchronous induction motor and compressor
It is an object to obtain a highly efficient synchronous induction motor by letting the magnetic flux hardly pass in the direction of a q axis without interrupting a magnetic path in the direction...
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7493989 |
Elevator suspension arrangement
The invention relates to a suspension arrangement for an elevator, which elevator preferably is an elevator without machine room and in which elevator the hoisting machine ( 4 ) is connected via a...
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7485997 |
System and method for securing a rotor to a motor drive shaft using cam fasteners
A rotor assembly for mounting a rotor to a motor shaft having a rotor with a centrally positioned central bore, the diameter of which is slightly larger than a diameter of the motor shaft, a first...
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7484941 |
Electric motor with circulator pump
To create an electric motor, comprising a rotor and a stator, whereby the rotor is spherically supported, which motor has a high efficiency, it is proposed, that the rotor produces a magnetic...
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7462961 |
Superconductivity rotor having torque tube
A superconductivity rotor has a field coil portion wound with a superconductivity wire, a support portion for supporting the field coil portion, torque tubes positioned at both ends of the support...
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7456539 |
Rotor and method of manufacturing the same
A rotor includes a rotor core fixedly provided on a shaft and having a hole, a magnet inserted into the hole, and a resin portion injected between the side surface of the hole and the side surface...
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7453174 |
Superconducting electric motor
A superconducting motor which operates in a synchronous mode of operation, can also be operated in an induction mode in the event that the superconducting components of the motor lose their...
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7420308 |
PMBDCM and two phase SRM motor, two phase SRM rotor and stator, and coil wrap for PMBDCM and SRM motors
A two-phase switched reluctance motor in an embodiment includes a plurality of salient rotor poles that each have asymmetric reluctances about a central radial axis of the respective rotor pole....
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7417350 |
Dynamoelectric claw-shaped rotor with magnet retainer
Reinforcing body retainers are formed on an inner peripheral surface near a tip and near a root of first and second claw-shaped magnetic poles. Reinforcing bodies have a trapezoidal base portion...
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7417347 |
Skeleton type BLDC motor
A rotor of a BLDC motor includes: a rotor divided into a north pole and a south pole on the basis of a magnetic pole separating line; and a stator at which the rotor is disposed with an air gap,...
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7411328 |
Dynamo electric machines
A dynamo electric machine for an aircraft gas turbine engine includes a housing supporting a stator of the dynamo electric machine, a rotor assembly rotatably mounted in the housing and including...
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7400076 |
Rotating electric machine and method and device for positioning rotational position sensor for the machine
The rotating electric machine has a stator coil wound around a stator, a magnetic pole and a signal rotor fixed to a rotor, and a detection stator, disposed opposite to the signal rotor, for...
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7365466 |
Rotor for an electrical motor
The invention provides a rotor for an electrical motor, a tool for making a rotor core and a method of making the rotor. The rotor could be incorporated e.g. in a line-start motor and comprises a...
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7364420 |
Rotary press for making tablets
Rotary press for making tablets with a rotor, which rotor exhibits a die plate and guides for the upper and lower punches, a rotor shaft and an electric drive motor, which electric drive motor...
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7362031 |
Electric motor
An electric motor has an armature rotatably accommodated inside a motor housing and a pair of magnets fixed to an inner surface of the motor housing so as to face the armature. The armature has an...
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7362027 |
Electric machine with a laminated rotor core
An electric machine includes a shaft and a rotor core mounted onto the shaft and formed of a plurality of stacked laminations. The rotor core has opposite end surfaces for attachment of a plate in...
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7358637 |
Method of compressing lamination stacks for permanent magnet rotor
The present invention is a method of compressing lamination stacks for a permanent magnet rotor. The method includes the steps of providing a plurality of stages of lamination stacks and magnet...
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7355316 |
Electrical tool
In the portable electrical circular saw (electrical tool) in which a commutator motor (permanent magnet motor) is mounted in a motor case (housing) which is integrally formed in a tube shape, the...
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7355315 |
Drum type washing machine with rotor and shaft having interlocking connection mechanism
A rotor of motor for drum type washing machine comprises a stator formed of a field winding; a rotor disposed outside the stator to house the stator, and having a yoke surface on which a permanent...
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7353913 |
Elevator hoisting machine and motor
A elevator hoisting machine is provided with a stator mounting portion at which a stator core of a motor is mounted to a surface of a side opposite to a sheave in a sheave rotation centerline...
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