Title:
ROTARY ELECTRIC MACHINE AND DRIVE UNIT COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/203832
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a rotary electric machine that has a simplified structure for cooling and that inhibits the increase in production costs. In the rotary electric machine according to the present invention, the axis of rotation of a rotor shaft 26 is positioned at a prescribed angle with respect to the horizontal axis. Provided are an upper-side flow passage 252 formed on the upper side of a stator core 23a and through which the liquid refrigerant flows, a lower-side flow passage 255 formed on the lower side of the stator core 23a, and a slot flow passage 257 that connects the upper-side flow passage 252 and the lower-side flow passage 255. The upper-side flow passage 252 is formed by a housing 25, an upper end surface of the stator core 23a, and an upper-side flow passage forming body 251 connecting the housing 25 to the upper end surface of the stator core 23a on a gap G side. The slot flow passage 257 is at least partially open at the end face on the gap G side.
Inventors:
SUTO TETSUYA (JP)
TAKAHASHI AKESHI (JP)
ITO MAKOTO (JP)
INNAMI TOSHIYUKI (JP)
TAKAHASHI AKESHI (JP)
ITO MAKOTO (JP)
INNAMI TOSHIYUKI (JP)
Application Number:
PCT/JP2023/003609
Publication Date:
October 26, 2023
Filing Date:
February 03, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02K9/19; B60K1/00; B60L15/00
Foreign References:
| JP2021013213A | 2021-02-04 | |||
| JP2012191719A | 2012-10-04 | |||
| CN112491206A | 2021-03-12 | |||
| CN112186952A | 2021-01-05 | |||
| US20200244124A1 | 2020-07-30 | |||
| JPS52167502U | 1977-12-19 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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