Title:
MOTOR AND MOTOR PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/270397
Kind Code:
A1
Abstract:
A motor comprising: a shaft; a bearing that rotatably supports the shaft; a rotor that is integrally fixed to the shaft; and a stator that is disposed such that a gap of a designed length is provided between the stator and the rotor in the axial direction of the shaft, wherein the stator is provided with a stator core composed of a molded powder compact, the stator core has a first surface that faces the gap and a second surface that is provided to the opposite side from the first surface in the axial direction, and grinding marks are provided to at least one among the first surface and the second surface.
Inventors:
ENOKIZONO YUTA (JP)
AZUMA DAICHI (JP)
SAITO TATSUYA (JP)
AZUMA DAICHI (JP)
SAITO TATSUYA (JP)
Application Number:
PCT/JP2022/024094
Publication Date:
December 29, 2022
Filing Date:
June 16, 2022
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO ELECTRIC SINTERED ALLOY LTD (JP)
SUMITOMO ELECTRIC SINTERED ALLOY LTD (JP)
International Classes:
H02K1/12; H02K1/06; H02K21/24
Domestic Patent References:
| WO2020226011A1 | 2020-11-12 | |||
| WO2017141412A1 | 2017-08-24 |
Foreign References:
| JP2020108323A | 2020-07-09 | |||
| JP2009259991A | 2009-11-05 |
Attorney, Agent or Firm:
YAMANO Hiroshi et al. (JP)
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