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US20090302695 |
ELECTRIC MOTOR AND ELECTRIC TOOL WITH THE SAME
An object of the present invention is to effectively cool the generation of heat of a resin molding armature, especially to effectively cool the generation of heat of a coil in an electric motor...
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US20090295168 |
Electrical Machinery Incorporating Double Helix Coil Designs For Superconducting and Resistive Windings
An alternating current machine which generates a magnetic field or induces a voltage. In one the machine includes a stator and a rotor positioned about an axis. The stator includes three sets of...
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US20090267441 |
Rotating Electrical Machine
A rotating electrical machine includes a stator including at least two element coils of the same phase each having a plurality of turns and connected to each other through a coil-to-coil connection...
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US20090243420 |
ELECTRIC ROTATIONAL MOTOR
A rotational motor includes a stator formed by a core member including: a magnetic core portion extending in a radial direction of the rotational motor and formed into a fixed shape in every cross...
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US20090236928 |
ELECTRICAL MACHINE
The invention describes an electrical machine having an armature with armature slots for accommodating armature coils, and a commutator with commutator laminates. At least one armature coil is...
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US20090230809 |
STATOR WINDING FOR A SLOTLESS MOTOR
A stator winding for a slotless motor is parallel with the longitudinal axis of the motor except at the end turns of the coil windings. The coils have concentrated windings with a pair of coils...
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US20090200889 |
Nested Serpentine Winding for an Axial Gap Electric Dynamo Machine
The stator of an axial gap dynamoelectric machine comprises two or more serpentine coil arrays that are formed form a continuous loop of insulated wire. The serpentine coils are deflected in at...
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US20090200890 |
Winding For An Axial Gap Electric Dynamo Machine
The stator of an axial gap dynamoelectric machine has at least one substantially planar coil arrays formed by joining two or more sub-coils. Each sub-coil has a serpentine path about the stator...
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US20090195107 |
ACTUATOR AND COIL FRAME
An actuator includes: a coil for excitation; a rotor rotatably supported; a stator effecting a magnetic force on the rotor for rotation, the stator having first and second leg portions arranged...
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US20090195106 |
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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US20090184601 |
POLYPHASE STATOR OF A ROTATING ELECTRICAL MACHINE WITH CLAW-POLE ROTOR AND ALTERNATOR OR ALTERNATOR STARTER COMPRISING SAME
The invention concerns a polyphase stator ( 5 ) for a with rotating electrical machine claw-pole rotor comprising five or seven phases ( 132 ), a stator body having internally a plurality of...
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US20090146524 |
Coil module for a stator of an electric motor, stator, electric motor, circulation pump and method of manufacturing a stator
A coil module for a stator of an electric motor comprising a coil holder, a coil that is disposed on the coil holder, a first web and a second web is provided, wherein situated between the first...
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US20090127965 |
ROTATIONAL ELECTRIC MACHINE HAVING FIELD WINDING FORMED BY COUPLING FORMED COIL TO BOBBIN
The rotational electric machine includes a cylindrical yoke and a field winding connected to an inner surface of the cylindrical yoke. The field winding is composed of plural formed coils, each...
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US20090121576 |
METHOD FOR INSERTING A COIL IN A POLYPHASE ROTATING ELECTRICAL MACHINE STATOR, AND ASSOCIATED STATOR
A method for inserting a corrugated coil in an alternator stator, the coil comprising a number of wires, each designed to form around the inner surface of an assembly of plates a spiral including a...
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US20090108695 |
Symmetrical Coil Electric Motor
An electric motor includes symmetrical elliptical coils on the inner surface of the motor stator. The coils are formed of a conductive material having a rectangular cross section and the long axis...
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US20090072653 |
Stator Structure of Rotary Electric Machine and Method of Manufacturing the Same
A stator of rotary electric machine includes a plurality of winding bodies of a concentrated winding type in which two conductive wires are wound in rows. Assuming that the number of conductive...
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US20090058215 |
BRUSHLESS MOTOR AND ELECTRIC POWER STEERING APPARATUS
A motor includes a cylindrical stator. The stator includes a stator core having teeth, which project inwardly in the radial direction, and coils, which are formed by winding a conductive wire onto...
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US20090058216 |
Stator and electric motor
Plate-shaped projections are provided on a front insulator in such a manner as to project towards a front housing. In addition, projecting pieces are provided on a surface of each projection which...
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US20090021100 |
Stator Structure of External-rotor Motor
An improvement on the stator structure of external-rotor consists of the start-up coils and operating coils wound into the silicon steel race, wherein the said silicon steel race comprises a...
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US20080315708 |
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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US20080258570 |
Stator
The present invention provides a stator coiled in a spiral, capable of mechanically inserting a wound coil in the slot of a stator core. In a stator in which coils are overlapped in a spiral when...
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US20080224557 |
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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US20080170952 |
HERMETIC COMPRESSOR
A hermetic compressor includes a compressing device and a drive motor connected to the compressing device. The drive motor has a stator with a stator coil made of aluminum wire and an insulating...
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US20080136284 |
MANUFACTURING METHOD OF MOTOR AND ARMATURE
A straight line portion of a substantially U-shaped angular wire having a substantially rectangular cross section and a straight line portion of a substantially U-shaped round wire having a...
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US20080122301 |
MOTOR STATOR STRUCTURE
In a motor stator structure, a neutral-point bus ring is arranged along an inner peripheral portion of a stator, and alternately includes a larger-diameter portion, a first link portion, a...
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US20080073992 |
CORELESS MOTOR
A coreless motor may include: a rotor having a magnet whose circumferential face is magnetized to multiple poles; a stator for rotatably supporting said rotor with a bearing interposed between said...
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US20080030096 |
Distributed Coil Stator for External Rotor Three Phase Electric Motors
A distributed coil stator ( 102 ) for external rotor electric motors includes a core having a cylindrical surface bounded by a first end surface and a second end surface, wherein a first set of...
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US20080024030 |
Rotating Armature
In a rotating armature in which a bobbin is attached to a core constituting a stator, a coil is wound around a coil winding portion of the bobbin, and a wind starting and a wind terminating of the...
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US20080007133 |
Electromagnetic device
An electromagnetic device includes a plurality of coils formed by winding conductors. At least some of the conductors are constructed by stacking conductor constructional elements so that an eddy...
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