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Patent Searching and Data


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 (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
Application Number:
JP2019/013410
Publication Date:
October 03, 2019
Filing Date:
March 27, 2019
Export Citation:
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Assignee:
NIDEC CORPORATION (338 Kuzetonoshiro-cho, Minami-ku Kyoto-sh, Kyoto 05, 〒6018205, JP)
International Classes:
H02K9/19; H02K9/06
Domestic Patent References:
WO2018008356A12018-01-11
Foreign References:
JPS649454U1989-01-19
JP2003324900A2003-11-14
JP2004048877A2004-02-12
JP2004159429A2004-06-03
JP2003204653A2003-07-18
JPS5556446A1980-04-25
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