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Title:
ROTARY MOTOR AND NON-CONTACT GENERATOR
Document Type and Number:
WIPO Patent Application WO/2018/016545
Kind Code:
A1
Abstract:
Provided are a rotary motor and non-contact generator with good magnetic efficiency, little magnetic flux leakage, and cogging torque compensation. A rotary motor 10 comprises: a first rotating body 2 that has first permanent magnets 2a that are disposed facing and separated from each other on a main surface of a moving body that rotates or moves, and that rotate around a prescribed rotational axis in accordance with the rotation or movement direction of the moving body; and a cogging torque canceling unit 8 that cancels out at least part of the cogging torque produced by the first permanent magnets due to the relative shapes of and positional relationship between the moving body and the first permanent magnets. The first rotating body 2 rotates around a first rotational axis due to the repulsive force and attractive force acting on the first permanent magnets on the basis of an eddy current produced in a direction that prevents changes in the magnetic flux generated by the first permanent magnets on the main surface of a moving body 5. One side surface of the first rotating body which is disposed facing the moving body has a slower surface speed than that of the main surface of the moving body disposed facing the side surface.

Inventors:
FLANKL Michael (Power Electronic Systems Laboratory, ETH Zurich ETL H22 Physikstrasse, Zurich 8092, 8092, CH)
TUEYSUEZ Arda (Power Electronic Systems Laboratory, ETH Zurich ETL H22 Physikstrasse, Zurich 8092, 8092, CH)
KOLAR Johann W. (Power Electronic Systems Laboratory, ETH Zurich ETL H22 Physikstrasse, Zurich 8092, 8092, CH)
TSUKADA Yusuke (NABTESCO CORPORATION 3-3, Takatsukadai 7-chome, Nishi-ku, Kobe-sh, Hyogo 71, 〒6512271, JP)
NAKAMURA Kazuhito (NABTESCO CORPORATION 3-3, Takatsukadai 7-chome, Nishi-k, Kobe-shi Hyogo 71, 〒6512271, JP)
Application Number:
JP2017/026167
Publication Date:
January 25, 2018
Filing Date:
July 19, 2017
Export Citation:
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Assignee:
NABTESCO CORPORATION (7-9 Hirakawacho 2-chome, Chiyoda-ku Tokyo, 93, 〒1020093, JP)
International Classes:
H02K21/22; F16H49/00; H02K49/02
Domestic Patent References:
WO2012101938A12012-08-02
Foreign References:
JP2014073076A2014-04-21
JP2011254618A2011-12-15
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (Kyowa Patent & Law Office, Nippon Life Marunouchi Building 1-6-6, Marunouchi, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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