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7615907 |
Segmented inner stator and brushless permanent magnet motor with the same
A segmented inner stator comprises a stator core and a stator winding. The stator core includes a plurality of core segments which are retained together in a circular arrangement by at least one...
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7615895 |
Outer rotor type motor for drum type washing machine and method for fabricating the same
Direct coupling type motor for drum type washing machine having a stator which can reduce material required for fabrication, and a weight after fabrication, simplify a fabrication process, and can...
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7608969 |
Stator for rotary electric machine
A stator for a rotary electric machine, including a plurality of stator cores arranged in a circumferentially spaced relation about a central axis of the stator, and a molded resin filled between...
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7605514 |
Electric machine
In a rotating electric machine including a field pole unit having ten magnetic poles (P=10) and an armature having twelve teeth (Q=12), armature coils are wound around the successive teeth with...
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7605501 |
Stepping motor and fan having the same
A stepping motor includes: a stator including a coil that is wound so as to form a hollow space; a rotor including a magnet to be disposed in the hollow space of the coil, the rotor being...
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7598641 |
Electrical machine with preloaded ball race and method for manufacturing the same
An electrical machine with a ball race preloaded by elastic deformation of a bearing end plate as well as a method for manufacturing the same comprises a stator and a rotor with rotor shaft. The...
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7598637 |
Stator for an electrical machine
A stator for an electrical machine includes a ring-shaped stator yoke with a number of stator coils arranged thereon. The conductor ends of the coils are designed to be connected to a wiring...
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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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7592733 |
Rotary electric machine and electric wheelchair mounted with rotary electric machine
A rotary electric machine includes a stator including a plurality of teeth which are each wound up by a coil and a stator yoke core connecting the respective teeth, and a rotor provided with...
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7586232 |
Flat radially interacting electric drive and a method of the manufacturing the same
A flat radially interacting electric drive comprises a flat stator, an axle and a magnetized flat rotor. The flat stator comprises a stator core made of silicon steel and placed within two layers...
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7586228 |
Stator of an electric motor
The invention relates to a stator of an electric motor, comprising a laminated stator core ( 1 ) which is provided with electrical insulation ( 8 ) composed of plastic, and a stator bushing ( 3 )...
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7583003 |
Stator for motors
The present invention provides a stator for motors in which a space volume occupied by the winding wire of an excitation winding section can be increased, thereby allowing magnetic flux to readily...
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7581307 |
Method of making an electric machine having an electronics mount secured by an interference fit
A method includes heating a housing of an electric machine to thermally expand the housing, positioning a mount having power and control electronics assembled thereon and in contact therewith in...
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7579738 |
Multi-phase electrical motor for use in a wheel
The invention relates to a rotary multi-phase electrical motor wherein stator teeth corresponding to one same phase are grouped on a distinct and magnetically isolated stator section. The number of...
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7579735 |
Motor stator teeth with insulators
A motor stator in one implementation includes a plurality of teeth disposed in a radial form centered about a predetermined center axis, insulators covering the plurality of teeth, and a plurality...
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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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7576468 |
Commutation of brushless electrodynamic machines
A method, apparatus and system for selectably directing power signals to coils of active field pole members in brushless electrodynamic machinery are disclosed. In one embodiment, a field pole...
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7573176 |
Dynamo-electric machine
In a dynamo-electric machine having two rotors, at least one of the rotors is constructed to have a first magnetic path that extends in a circumferential direction of the rotor, at least one of 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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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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7564156 |
Vehicle-use tandem electric rotating machine
The vehicle-use tandem electric rotating machine includes a first stator-rotor pair, a second stator-rotor pair, and a controller individually controlling a first field current flowing into a first...
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7554229 |
Stator structure of motor
A stator structure of a motor. The stator structure has a base including a main body and a plurality of protrusions extending from the main body. A stator part has a plurality of magnetic-pole...
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7552787 |
Energy recoverable wheel motor
An energy recoverable wheel motor for attachment to an axle has a motor mount plate suitable for attachment to the axle, a rim defining an outwardly periphery of the wheel, a flywheel mounted...
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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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7548008 |
Electrical machine with double-sided lamination stack
The machine includes a rotor with an inner rotor core and an outer rotor core and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically...
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7541709 |
Ultra-thin motor structure
An ultra-thin motor structure including a stator assembly and a rotator assembly is provided. The stator assembly includes at least one bearing with a bore, a base, and a winding plate. The base...
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7541705 |
Fault-tolerant permanent magnet machine with reconfigurable flux paths in stator back iron
A permanent magnet (PM) machine has a fault condition mechanism disposed within a back iron of the stator portion, the mechanism operational to automatically reduce fault currents associated with...
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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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7535134 |
Spindle motor, and recording and reproducing apparatus equipped with the same
With a spindle motor 20 , a stator core 8 comprises a plurality of salient pole components 51 that are formed in a radial shape, are wound with a stator coil 9 , and are disposed at a uniform...
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7525231 |
Stator used for recording disk driving motor, recording disk driving motor, and recording disk driving device
The wire winding height of the first teeth over which the head portion moves is lower than the wire winding height of the second teeth over which is out of the moving range of the head portion. The...
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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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7518280 |
Method and system for selectively operating an electric motor
A method for selectively operating an electric motor in one of a first pole configuration and a second pole configuration is provided. The first pole configuration has a first phase winding...
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7511398 |
Motor and recording disk driving device
A base plate is provided with plural through holes extending vertically through the base plate, at the portions aligned with plural teeth. In the respective through holes of the base plate, the...
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7511394 |
Rotational electric machine stator and manufacturing method therefor
A rotational electric machine stator has a rectangular wire that includes a lead wire covered with an insulation coating, terminals that is connected to the rectangular wire by thermal fusing, and...
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7508102 |
Brushless motor having a circuit board having a central hole and escape holes
In a brushless motor of the present invention, by disposing an electronic circuit board and a rotary magnet close to each other, detection precision of a magnetic pole of a Hall IC is enhanced, and...
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7501730 |
Brushless synchronous motor
A brushless synchronous motor includes a stator having a plurality of phase coils, a rotor disposed opposite the stator, a magnetic sensor for detecting a rotation angle of the rotor, a power...
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7498709 |
Method and apparatus for winding segments of a segmented wound member of an electromechanical device
In certain embodiments, an electromechanical device is provided with N sets of stator segments, each segment comprising a respective, separate bobbin, the N sets of segments being wound with a...
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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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7479724 |
Stator structure
A stator structure includes at least one stator part having a single rolled steel sheet to serve as a waist post with a gap. A first stator part includes a first engaging portion. A second stator...
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7471023 |
Electric machine provided with an internal stator
An electric machine is described herein. The machine includes an internal stator provided with a central opening. A generally cylindrical cooling assembly is mounted inside the central opening via...
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7471022 |
Magnetic 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....
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7462971 |
Armature winding, method for manufacturing armature winding, and slotless motor
A first armature winding and a second armature winding each include a tubular member, a first conductor arranged in a radially inner side of the tubular member, and a second conductor arranged in a...
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7459826 |
Laminated body of motor and manufacturing method thereof
A laminated body of a motor includes: a yoke spirally laminated to form a hollow cylindrical shape; a plurality of teeth protruding from one side edge of the yoke disposed along a longitudinal...
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7446449 |
Electric motor
An electric motor comprising a rotor and a stator is disclosed. The rotor is supported on a substantially spherical bearing and is of a substantially spherical design facing the stator, which has a...
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7443073 |
Electric fan
An electric fan includes a frame ( 10 ) having a central tube ( 12 ) extending therefrom, a bearing ( 30 ) received in the central tube, a stator ( 50 ) mounted around the central tube, and a rotor...
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7443071 |
Motor stator
A motor stator includes a stator core ( 500 ) and a stator coil. The stator core includes a central cylinder ( 501 ) and a plurality of posts ( 503 ) extending from the central cylinder. Each post...
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7443069 |
Stator structures
Stator structures are provided. A stator structure includes at least a magnetic conductive layer and at least a first auxiliary magnetic polar layer. The magnetic conductive layer comprises a...
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7436098 |
Current limiting means for a generator
The invention provides means of limiting maximum current conducted through windings of an electric machine having a rotor and a stator. By encouraging an appropriate leakage flux around a winding,...
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7436089 |
Reciprocating motor
A reciprocating motor comprising an outer stator ( 110 ) having a cylindrical shape by radially stacking a plurality of lamination sheets ( 112 ) at the outside of a bobbin ( 160 ) in which a...
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