Title:
ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2022/114176
Kind Code:
A1
Abstract:
An electric motor comprising: a rotor core in a disc shape centered around the axis; a plurality of permanent magnets arranged inside the rotor core in the circumferential direction; and a stator surrounding the rotor core and the permanent magnets from the outer peripheral side, wherein a plurality of outer-side slits extending in such directions that the outer-side slits become closer to each other as the positions approach from both ends in the circumferential direction toward the outside in the radial direction are formed on the outer peripheral side of the permanent magnets in the rotor core. This enables reduction in leakage magnetic flux.
Inventors:
HOTTA YOHEI (JP)
SASAKI MIKITO (JP)
SAKAGUCHI AYANA (JP)
SASAKI MIKITO (JP)
SAKAGUCHI AYANA (JP)
Application Number:
PCT/JP2021/043589
Publication Date:
June 02, 2022
Filing Date:
November 29, 2021
Export Citation:
Assignee:
MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
International Classes:
H02K1/2706
Domestic Patent References:
| WO2020213081A1 | 2020-10-22 | |||
| WO2020194504A1 | 2020-10-01 | |||
| WO2020170390A1 | 2020-08-27 |
Foreign References:
| JP2011188579A | 2011-09-22 | |||
| JP2013051763A | 2013-03-14 | |||
| JP2020198347A | 2020-12-10 | |||
| JP2006166688A | 2006-06-22 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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