回転電機および非接触発電機

Japanese Patent JP6685399

B2

One object is to provide a rotary electric machine and a non-contact power generator having a high magnetic efficiency, less prone to magnetic flux leakage, and provided with measures against the cogging torque. Provided is a rotary electric machine, including: a first rotating body 2 opposed at a distance to a main surface of a moving body that rotates or moves, the first rotating body including a first permanent magnet 2a configured to rotate around a first rotational shaft in accordance with a direction of rotation or movement of the moving body; and a cogging torque canceling unit 8 for reducing or canceling out at least a part of a cogging torque produced in the first permanent magnet depending on a relative relationship in shape and position between the moving body and the first permanent magnet, wherein the first rotating body 2 is rotated around the first rotational shaft by a repulsive force and an attractive force acting on the first permanent magnet, the repulsive force and the attractive force being caused by eddy currents generated in the main surface of the moving body 5 in such a direction as to hinder a change of magnetic flux from the first permanent magnet, and a surface speed of a side surface of the first rotating body opposed to the moving body is lower than a surface speed of the main surface of the moving body opposed thereto.

JP6772492	Rotating machine
JP2021164349	BRUSHLESS DC MOTOR
JP2003134735	ROTATING APPARATUS

Frankle Michael
Tous's Arda
Coller Johann, B
Yusuke Tsukada
Kazuto Nakamura

JP2018528843A

April 22, 2020

July 19, 2017

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Nabtesco Co., Ltd.

H02K21/22; H02K7/18; H02K49/02

JP2014073076A
JP2011254618A

WO2012101938A1

Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Yukihiro Hotta
Yasushi Kawasaki

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