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7622842 |
Rotary electric machine and stator for rotary electric machines
In a rotary electric machine, output ends of first and second three-phase windings of first and second sets included in a first group are separated from those of third and fourth three-phase...
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7615906 |
Joint structure of electric wire, stator of rotary electric machine, method for manufacturing the same
When electric wires (joint conductors) are disposed adjacent each other in a peeled state of coatings, a gap corresponding to the total thickness of both conductors' insulating films as skin layers...
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7615904 |
Brushless high-frequency alternator and excitation method for three-phase AC power-frequency generation
A method is disclosed for arranging and exciting the stator, rotor and various windings of a multi-stage brushless high frequency alternator so that the resulting multiple high frequency sub-phase...
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7608967 |
Single field rotor motor
A single field rotor motor comprising a rotor mounted for rotation with respect to a stator. The stator has a plurality of stator poles each having a coil for creating a magnetic pole force. The...
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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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7602093 |
Vehicle alternator and stator for vehicle alternator
A vehicle alternator and a stator for the vehicle alternator are disclosed wherein a stator winding includes a plurality of base segments wound on slots of the stator, each of the base segments...
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7598646 |
Electric motor with Halbach arrays
Electric motor configurations are provided with Halbach arrays. In one example, an electric motor includes a first plurality of magnets arranged in a first Halbach array. The first plurality of...
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7589441 |
Circumferentially wound cooling tube structure for cooling a stator
A stator assembly including a plurality of stator coil assemblies and a stator coil support structure constructed of a non-magnetic, thermally-conductive material. The stator coil support structure...
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7586660 |
DC brushless motor, light deflector optical scanning device, having an increased efficiency to reduce power consumption and heat generation using exactly six poles and stator with nine teeth and corresponding coils
A light deflector is disclosed that includes a bearing, a motor, a rotary body supported by the bearing and rotated by the motor, and a polygon mirror fixed to the rotary body. The motor includes...
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7583000 |
Starting system for salient-poled-rotor electric motor
A starting system and method for starting a salient-poled-rotor electric motor having a stator with a plurality of spaced salient poles, a plurality of field coils of unchanging polarity, and a...
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7579729 |
Rotary electric machine
A rotary electric machine comprising a stator body (ST in FIG. 1 ) which includes a winding configured of a plurality of coils ( 2 ), and a power supply section (PS) which includes conductive...
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7573171 |
Rotation control motor
A rotation control motor comprises a shaft, an armature having an armature core of which teeth are wound by wires to form coils, a commutator, and a field magnet. The armature core has a plurality...
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7569967 |
Compact disk device and disk drive
A disk device has a small size, a small thickness, a high efficiency, a small degree of vibration and a small level of noise. In one embodiment, the disk device comprises a disk for storing...
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7567008 |
Rotating electrical machine and method for producing such a machine
A rotating electrical machine ( 10 ) has a rotor ( 11 ), which rotates about an axis ( 13 ) and is surrounded concentrically by a stator ( 12 ) having a stator winding ( 30 ) inserted into a stator...
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7567005 |
Long stator motor
A long stator motor, particularly for driving a magnetic levitation transport system, includes a stator iron, inside of which grooves for accommodating cable windings are provided. At least two...
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7557478 |
Structure for a motor/generator with an improved stator and method of manufacturing same
In a structure for a motor or generator, stator segments have a toothed portion to receive a coil. A busbar is electrically connected to the coil, and an insulator has a coil insulator portion...
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7550892 |
High slot utilization systems for electric machines
Two new High Slot Utilization (HSU) Systems for electric machines enable the use of form wound coils that have the highest fill factor and the best use of magnetic materials. The epoxy/resin/curing...
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7550890 |
Motor assembly with an integrated flexible printed circuit
The present invention provides a motor assembly for mounting to a base. The motor assembly includes a stator assembly having a plurality of stator teeth. Each stator tooth is configured to support...
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7545070 |
Commutator motor having a number of field winding groups
A commutator motor, which has a series excitation or shunt excitation and which, in particular, is suited for use as a drive motor for a washing drum of a laundry treatment device. The stator of a...
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7545069 |
Electric machine winding arrangement
Rotational electric machine stator winding arrangement characterized, inter alia, by at least one coil of each parallel circuit being discontinuous with the other coils of the corresponding...
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7545056 |
Saturation control of electric machine
The invention includes an electric alternator/motor having a rotor, stator and at least one winding in the stator adapted to conduct a current, the machine also having and first and second magnetic...
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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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7531935 |
Polyphase electricturning machine such as an alternator or an alterno-starter, particular for a motor vehicle
A polyphase electric turning machine such as an alternator or an alterno-starter, particularly for a motor vehicle. The machine comprises a stator surrounding a rotor inside a case; the stator...
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7521834 |
Poly-phase electromagnetic device having an improved conductor winding arrangement
A poly-phase electromagnetic device having n winding phases (n>2) wherein each phase is made from a single conductor strand wound in a lap form configuration. The windings are configured such...
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7518279 |
Electric motor systems
Electric motor systems are provided for use in vehicles. In an embodiment, by way of example only, the system includes a first inverter, a second inverter, and a motor electrically coupled to the...
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7501729 |
Three-phase magnetic generator
A terminal plate set has multiple terminal plates and fitting legs. Each terminal plate has a transverse bar portion and a longitudinal bar portion. If the fitting legs of the terminal plate set...
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7459824 |
High torque repulsion motor
A high torque AC motor of the repulsion type that includes at least four stator poles and an armature with chordally oriented windings. The armature windings are cyclically shorted and opened in...
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7439645 |
Stator arrangement of a rotary electric machine having lead wires in sagging contact with the stator winding
In a stator of a rotary electric machine that includes a stator winding and a stator core having a plurality of slots, the stator winding is constituted of a plurality of series-connected regular...
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7436097 |
Synchronous machine having a stator with grooves to receive a stator winding, such as a synchronous machine for a wind power installation
A synchronous machine has a stator in which grooves are provided at the inner or outer periphery in mutually spaced relationship to receive a stator winding. The synchronous machine may be in the...
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7432626 |
Dynamoelectric machine having reduced magnetic noise and method
An automotive alternator including a rotor having a plurality of poles; a plurality of phases in operable communication with the plurality of poles; and a stator core in operable communication with...
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7432625 |
Armature of motor
An armature for use in a motor has a plurality of teeth, a plurality of slots and coils of three kinds of phases. A plurality of the slots is formed between the coadjacent teeth. The coils of three...
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7420307 |
Brushless motor
The invention relates to a brushless DC motor having an at least two-pole permanent magnet rotor and an at least two-pole stator whose poles carry an at least single-strand stator winding which can...
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7411329 |
Permanent magnet synchronous motor including permanent magnet with tapered outer edges and rotor core with opening
The present invention provides a permanent-magnet-synchronous-motor having a stator with concentrated windings with the following structure so that permanent magnet ( 6 ) is hard to subjected to...
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7408281 |
Stator and brushless motor
A technique of facilitating a coil winding work by continuously winding coils in the same direction, in a stator in which a plurality of coils constituting a coil group of the same phase are...
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7397156 |
Tandem rotary electric machine
A tandem rotary electric machine for vehicles is equipped with a primary rotary electric machine and a secondary rotary electric machine arranged in tandem mechanism, namely, of a dual stator-rotor...
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7391138 |
High-voltage electric rotating machine
The present invention relates an electric rotating machine comprising a plurality of phase coils each composed of a plurality of partial coils each made by connecting segments each composed of an...
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7370402 |
Method for producing stator packs for long-stator linear motors of magnetic levitation railways
A method for producing stator packs for long-stator linear motors of magnetic levitation vehicles is described. At first steel sheets are stacked to form a sheet stack, cross members are inserted...
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7365468 |
Motor stator having transposed winding layers
An electric motor is provided with a multi-layered winding stator core configuration. A plurality of individual layers of wire strands are successively formed on each stator pole of a pole pair....
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7365467 |
Low noise stator winding having a phase angle shift
A stator for an electric machine includes a generally cylindrically-shaped stator core having a plurality of core teeth that define a plurality of core slots, the core slots extend between first...
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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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7358698 |
Field-winding type of synchronous machine
A field-winding type of synchronous machine comprises a stator with an armature winding wound phase by phase, a rotor having a rotor core with a field winding wound, and a circuit enabling an...
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7352097 |
Motor or generator and method of producing the same
A plurality of slots are provided at a stator core. A coil component is produced by winding conductor wires around a forming tool several times. The coil component is cut off at a predetermined...
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7342340 |
Alternator with identical conductor segments
In an automotive alternator according to the present invention, conductor segments of an inner winding portion and conductor segments of an outer winding portion have substantially the same shape.
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7312550 |
Architecture for electric machine
In one aspect, an alternator is described which includes a current control apparatus including a stator winding and a control winding, wherein current control in the control winding regulates the...
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7301310 |
Excitation controlled synchronous permanent magnet machine
The present invention provides an apparatus and methods for providing constant voltage from a permanent magnet generator at varying prime mover speeds or under varying loads. A constant voltage...
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7291954 |
Dynamoelectric machine
In a dynamoelectric machine according to the present invention, a first three-phase wye-delta hybrid winding and a second three-phase wye-delta hybrid winding are installed in a stator core having...
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7268455 |
4-layer type of stator winding formed of sequentially connected segments located in respective slot pairs, and method of manufacture thereof
A phase winding of a stator winding comprises one or more pairs of interconnected partial coil, each partial coil formed of sequentially connected U-shaped segment pairs, each pair comprising a...
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7262538 |
Concentrated winding stator coil for an electric rotary machine
A tooth coil of a concentrated winding stator includes a first layer coil arranged by successively winding a flat type wire around a tooth in a direction advancing from a proximal end portion to a...
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7242124 |
Sequentially joined-segment coil for rotary electrical machine
A polyphase sequentially joined-segment coil of a rotary electric machine and a production method thereof are provided. The coil is made up of a plurality of conductor segments joined in series....
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7239061 |
Switching pattern AC induction motor
Both the stator core and the rotor core of a switching pattern AC induction motor are fabricated by soft magnetic material laminations or ferrite material, etc., both of which have corresponding...
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