Title:
STATOR AND ELECTRIC MOTOR PROVIDED WITH STATOR
Document Type and Number:
WIPO Patent Application WO/2019/123531
Kind Code:
A1
Abstract:
This stator is provided with: a stator core; and a coil. The stator core is formed by laminating a plurality of annular first core sheets and a plurality of annular second core sheets. The first core sheets and the second core sheets each have a plurality of core pieces divided in the circumferential direction, and each have an annular shape formed by butting ends of back yoke portions of the adjacent core pieces against each other. The first core sheets each have a cutout section where a gap is formed between ends of the adjacent back yoke portions so as to extend radially from the inner surface side to the intermediate portion thereof, and a close-contact section where ends of the back yoke portions are butted against each other from the inner surface side to the outer surface side thereof. The second core sheets each have a close-contact section where ends of the adjacent back yoke portions are butted against each other radially from the inner surface side to the outer surface side.
Inventors:
IIDA TOSHIMITSU (JP)
TAJIMA TSUNEYOSHI (JP)
TAJIMA TSUNEYOSHI (JP)
Application Number:
PCT/JP2017/045525
Publication Date:
June 27, 2019
Filing Date:
December 19, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K1/14; H02K1/16
Domestic Patent References:
| WO2007141907A1 | 2007-12-13 |
Foreign References:
| JP2013042620A | 2013-02-28 | |||
| JP2012029458A | 2012-02-09 | |||
| JP2011254625A | 2011-12-15 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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