Title:
MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/189493
Kind Code:
A1
Abstract:
This motor is provided with a rotor having a shaft extending in a vertical direction, a stator positioned on the radially outer side of the rotor, and a housing accommodating the stator. The stator includes a core back, a plurality of teeth extending toward the radially inner side from the core back, and coils wound around the teeth. A hermetically sealed chamber enclosing a cooling medium is provided between the housing and the rotor. The hermetically sealed chamber has a plurality of outer circumferential side flow passages extending in the vertical direction, between the core back and the housing in the radial direction.
Inventors:
NAKAMURA YOSHINOBU (JP)
Application Number:
PCT/JP2019/013410
Publication Date:
October 03, 2019
Filing Date:
March 27, 2019
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K9/19; H02K9/06
Domestic Patent References:
| WO2018008356A1 | 2018-01-11 |
Foreign References:
| JPS649454U | 1989-01-19 | |||
| JP2003324900A | 2003-11-14 | |||
| JP2004048877A | 2004-02-12 | |||
| JP2004159429A | 2004-06-03 | |||
| JP2003204653A | 2003-07-18 | |||
| JPS5556446A | 1980-04-25 |
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