| 摘要 |
PURPOSE:To set the required number of a switching element in a rectifier circuit, to be one and reduce the number of component parts, by varying magnetic resistance on the inner peripheral surface of a rotor and on the outer peripheral surface of a stator, in the circumferential direction. CONSTITUTION:In the circumferential direction inside a rotor 1, a magnetized section 3, a non-magnetized section 5, a magnetized section 4, and a non- magnetized section 6 are arranged. Air gap G between the inner peripheral surface 1a of the rotor 1 and the outer peripheral surface 2a of a stator 2 is increased and reduced slowly in the circumferential direction, and thus the magnetic resistance on the inner peripheral surface 1a of the rotor and on the outer peripheral surface 2a of the stator is varied in the circumferential direction. By said organization, when the rotor 1 is rotated, then the rotational torque always positively works, and the rotation is smoothly kept at the zero point of torque or without the range, and only one switching element may be used for a rectifier circuit, and the number of component parts can be reduced. |
