Patent ID: 6472788
Filing Date: 2002-10-29
Classification: H02K

Abstract:
A motor/generator comprising:an inner rotor having a plurality of magnetic poles; an outer rotor having a plurality of magnetic poles which differs from the number of magnetic poles of the inner rotor, the inner rotor and the outer rotor being coaxially disposed and rotating independently from each other; and a ring-shaped stator disposed between the inner rotor and the outer rotor, the stator being provided with a plurality of coils, the coils simultaneously generating a magnetic field synchronized with the rotation of the inner rotor and a magnetic field synchronized with the rotation of the outer rotor, and a plurality of cores on which the coils are wound, the cores being arranged in a circumferential direction and composed of a magnetic material and having a connector magnetically connecting a part of a single core to a part of an adjacent core so as to set a magnetic resistance in a circumferential direction of an inner peripheral section of the cores located between the inner rotor and the coils and a magnetic resistance in a circumferential direction of an outer peripheral section of the cores located between the outer rotor and the coils.