Title:
ROTARY ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/203907
Kind Code:
A1
Abstract:
The purpose of the invention is to provide a rotary electric machine having an improved efficiency during high-speed rotation. This rotary electric machine is provided with a rotor and a stator, wherein the rotor is provided with a plurality of magnets arranged side-by-side along the rotating axis direction of the rotor, an iron core that forms an accommodating section for accommodating the magnets, and a plurality of interposition members disposed in the accommodating section. The coefficients of thermal expansion of the plurality of interposition members are greater than the coefficient of thermal expansion of the iron core, and one side of the plurality of interposition members is in contact with the magnets on one side among the plurality of magnets arranged along the rotating axis direction, and the other side of the plurality of interposition members is in contact with the magnets on the other side among the plurality of magnets arranged along the rotating axis direction.
Inventors:
SAWADA ITSUROU (JP)
KOKA HIDETOSHI (JP)
MATSUNOBU YUTAKA (JP)
KOKA HIDETOSHI (JP)
MATSUNOBU YUTAKA (JP)
Application Number:
PCT/JP2017/015840
Publication Date:
November 30, 2017
Filing Date:
April 20, 2017
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02K1/27; H02K1/22
Foreign References:
| JP2013258850A | 2013-12-26 | |||
| JP2015149791A | 2015-08-20 | |||
| JP2015104273A | 2015-06-04 | |||
| JP2015035888A | 2015-02-19 | |||
| JP2004343842A | 2004-12-02 | |||
| JP2012016237A | 2012-01-19 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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