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8148870 |
Coil assembly for rotating electric machine
A coil assembly for a rotating electric machine is a stator coil for use in the stator of a motor or the like, which includes a coil plate composed of at least two coil plate elements respectively...
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8134274 |
Stator bar with end arm involute-on-cone bend substantially aligned with stator core slot
Dynamoelectric device and stator bar therefor, where the stator bar includes a linear portion for positioning in a slot of a stator core, the slot extending in a radial direction relative to an...
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8129880 |
Concentrated winding machine with magnetic slot wedges
Methods and apparatus are provided for improving operational characteristics of a concentrated winding machine. According to an example embodiment, an apparatus comprises stator teeth having distal...
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8115361 |
Coil assembly for electrical rotating machine, stator for electrical rotating machine, and electrical rotating machine
The torque characteristic is improved using a magnetic flux efficiently, and an eddy-current loss generated in a coil is reduced. Moreover, a loss is suppressed even if a metal member having a high...
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8115362 |
Rotating electric machine having fusion bonded stator core blocks
An alternator can reduce the size of welding equipment and shorten the time of welding operation while ensuring high performance and high quality with the generation of electromagnetic noise being...
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8089175 |
Direct drive generator and wind turbine
The invention concerns a direct drive or directly driven generator for a wind turbine comprising a stator having at least one stator element for power generation and a rotor pivotable around a...
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8089192 |
Three-phase square-wave permanent magnet brushless DC motor
This invention relates to a three-phase square-wave permanent magnet brushless DC motor for solving problems of the existing square-wave permanent Magnet Motor and sine-wave permanent magnet motor....
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8084900 |
Asymmetrical stator of an electrical machine
A stater of an electrical machine has a cross section, a longitudinal extension, a jacket surface, a plurality of winding holders configured so that at least one of the winding holders for...
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8080911 |
Spherical motor rotating in multiple degrees of freedom
A spherical motor rotating in multi degrees of freedom has a reliable capability of determining positioning. The spherical motor includes a hollow spherical-shaped stator installed with a bi-level...
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8072113 |
Inductance augmenter for an electric machine
The electric machine comprises a rotor and stator, the rotor and stator having generally equal axial lengths. The stator has at least one primary and at least one control winding disposed around...
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8072115 |
Foil coil structures and methods for winding the same for axial-based electrodynamic machines
Disclosed are foil coil structures and methods for winding the same for stators in electrodynamic machines, as well as electrodynamic machines that implement such coil structures. In one...
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8067867 |
Motor with neutral bus ring connecting multiple motor coils
A stator includes multiple motor coils. The motor coils include multiple U-phase coils, multiple V-phase coils and multiple W-phase coils which are arranged in a circumferential direction of a...
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8058760 |
Magnetic holding spring for magneto field type motor and manufacturing thereof
When the magnet holding spring is in the deployed state of the plate-like shape, the auxiliary pole is beforehand fixed to one of the side-plates, then the magnet holding spring is bent into a...
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8030811 |
Stator and gap winding motor using the same
A so-called gap winding motor capable of preventing a rotation detector from being affected by noise generated by a stator coil connection portion and decreasing the size and cost is provided. The...
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8008821 |
Transverse and/or commutated flux system stator concepts
Disclosed are transverse and/or commutated flux machines and components thereof, and methods of making and using the same. Certain exemplary stators for use in transverse and commutated flux...
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8004107 |
Direct drive generator and wind turbine
A direct drive generator for a wind turbine is provided. The direct drive generator includes a stator arrangement and a rotor arrangement. The stator arrangement and/or the rotor arrangement...
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7999431 |
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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7990013 |
Slotless motor
A stator coil of a slotless motor is disclosed in which the stator coil is formed in such a manner that respective both distal ends of two unit coil bodies, each unit coil body arranged to face...
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7990008 |
Electric rotating machine having detachable moving stator drive unit
The electric rotating machine includes a fixed stator fixed to the inner circumferential side of a housing, a moving stator rotatably supported on the inner circumferential side of the housing, a...
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7982350 |
Conical magnets and rotor-stator structures for electrodynamic machines
Embodiments of the invention provide for conical magnets for rotors in electrodynamic machines, methods to design the same, and rotor-stator structures for electrodynamic machines. In various...
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7977826 |
Multipole permanent-magnet synchronous machine having tooth-wound coils
The permanently excited synchronous machine (1) includes a rotor (3) and a stand (2) which contains a three-branched winding system (8) which comprises tooth coils. The stand (2) has a total of...
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7973445 |
Laminated rotary actuator with three-dimensional flux path
A rotary actuator includes a stator assembly positioned within an outer enclosure. A rotor assembly is positioned adjacent to the stator and is configured to rotate relative thereto and about a...
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7969058 |
Permanent magnet motor with stator having asymmetric slots for reducing torque ripple
Permanent magnet motors with improved torque ripple and methods for designing the same have been provided. The permanent magnet motor can include a stator having a hollow core and defining a...
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7957631 |
Image stabilization apparatus for stabilizing an image sensor
An image stabilization apparatus for stabilizing an image sensor is disclosed. The image stabilization apparatus includes a transmission component whereon a slot is formed. The image stabilization...
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7952246 |
Electric compressor
To provide an electric compressor in which the occurrence of shrink-fitting failures can be prevented when a stator is shrink-fitted in a motor case. Provided are a casing (67) in which the inner...
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7944076 |
Direct drive generator and wind turbine
The invention concerns a direct drive or directly driven generator for a wind turbine comprising a stator and a rotor, wherein the stator comprises a stator ring comprising several...
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7932659 |
Superconducting device and axial-type superconducting motor
A superconducting device includes a coil formed of a superconducting wire, an iron core to which the coil is attached, and a magnetic material arranged in a magnetic circuit and magnetized by...
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7928625 |
Stator bar with end arm involute-on-cone bend substantially aligned with stator core slot
Dynamoelectric device and stator bar therefor, where the stator bar includes a linear portion for positioning in a slot of a stator core, the slot extending in a radial direction relative to an...
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7919890 |
Rotating electric machine
A rotating electric machine, comprising a stator, a rotor, a case storing the stator and the rotor, and an oil pump. Oil discharge ports are formed at the terminal part of an oil discharge passage...
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7884522 |
Stator and rotor-stator structures for electrodynamic machines
Embodiments of the invention relate generally to electric motors, alternators, generators and the like, and more particularly, to stator structures and rotor-stator structures for motors that can...
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7884516 |
Motor
A motor may include a rotor provided with a rotor shaft, a cylindrical bearing made of resin material and provided with a bearing part for rotatably supporting a shaft end of the rotor shaft, and a...
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7876063 |
Axial gap type motor/generator
An axial gap type motor/generator is provided with a stator, a rotor and an alternating current control device. The alternating current control device executes alternating current control of a...
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7872392 |
Rotating electrical machine
A rotating electrical machine, especially a turbogenerator, includes a rotor and a stator, which concentrically surrounds the rotor and is terminated at each of the two axial ends by a laminated...
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7859153 |
Device and method for mounting electric motor stators
A motor stator mounting device includes a plastic motor housing having a cylindrical housing section for receiving the stator. Longitudinal ribs along an inside surface of the housing section are...
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7847457 |
BLDC motor assembly
A BLDC electric motor assembly (24) includes a rotor (42) having a plurality of magnet segments (50) securely retained thereabout by an annular ring (68) which is shrunk in situ in an...
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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...
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7830053 |
Motor
A motor includes a stator core that forms a magnetic path and has a plurality of tooth parts along a circumferential direction; a tooth provided in each tooth part to wind a coil there around; and...
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7812496 |
Cassette coil and rotating electrical machine having the cassette coil
A cassette coil comprising an insulator bobbin including a core tube around which a wire coated with an insulating film is wound, forming a coil, and a pair of plate-shaped flanges provided at both...
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7800274 |
Thin stator, eccentric motor and axial air-gap brushless vibration motor equipped with the same
A stator includes a bracket having a shaft bearing portion at a center, a stator base including a flexible printed wiring board outwardly attached to the shaft bearing portion, single-phase...
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7797815 |
Control of a dual rotor electromagnetic machine
The invention relates to an electric synchronous machine. There is a need for a dual rotor electric synchronous machine which has a mechanism for adjusting the rotor relative angular displacement...
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7755245 |
Synchronous motor with permanent-magnet rotor
A synchronous motor with permanent-magnet rotor, of the type comprising a stator with corresponding windings and a rotor arranged between pole shoes formed by the stator. The stator is constituted...
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7750514 |
Stator of reciprocating motor
Disclosed is a stator of reciprocating motor comprising: a stator including two lamination assemblies formed accordingly as a plurality of lamination sheets are stacked as a cylindrical shape or a...
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7737600 |
Motor generator and automobile carrying the same
In a stator core composed of a powder compacted magnetic body, a yoke part comprises a protrusion protruding from an axial end face of a tooth. The tooth has an axial length gradually decreases...
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7719156 |
Stator module
The invention relates to a stator module for a synchronous machine with transversal flux guidance, in particular a transversal flux machine having at least one phase, having a stator unit that is...
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7714476 |
Rotating electrical machine core and rotating electrical machine
A core comprises a plurality of core split members having yoke portions and tooth portions and arranged in such a circumferential shape that the yoke portions contact with each other while the...
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7714474 |
Electrical machine having a flattened stator with inclined teeth
In a stator core having “N” slots, a tooth-width centerline of a linear yoke and a first extension line extended horizontally from a center of rotary shaft toward the linear yoke form a first ang...
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7709981 |
Stator, motor and record medium drive apparatus and method of fabricating stator
A stator includes a base board, a plurality of coil patterns patterned on one face of the base board, a stator core having a ring-like portion formed in a ring-like shape, a plurality of teeth base...
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7705494 |
Electric motor
An electric motor includes an annular stator core having a pair of ends opposed to each other in an axial direction, and a coil wound around the stator core. The stator core includes a pair of...
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7698803 |
Method of manufacturing laminated core
A method of manufacturing a laminated stator core includes: forming a band-shaped yoke core piece having a shape that a yoke of the laminated stator core is developed in a straight line and having...
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7687959 |
Brushless a-c motor
A brushless a-c motor (BACM) (10) consisting of a non-conductive stator (12) and a rotor (44). The rotor (44) has an outer surface (50), a right surface (34) and a left intermediate surface (16)...
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