Title:
ELECTRIC OIL PUMP
Document Type and Number:
WIPO Patent Application WO/2019/041953
Kind Code:
A1
Abstract:
An electric oil pump (100) comprises a pump housing, a pump rotor assembly (8), a stator assembly (4), a motor rotor assembly (3), and an electric control board (6). The pump housing forms a pump cavity, and the pump cavity comprises a first cavity (80) and a second cavity (90). The pump rotor assembly (8) is provided in the first cavity (80). The stator assembly (4), the motor rotor assembly (3), and the electric control board (6) are provided in the second cavity (90). The pump housing comprises a first housing body (2), and the first housing body (2) comprises a side wall (21). The side wall (21) comprises an inner surface (211) and an outer surface (212). At least part of the inner surface (211) is in contact with at least part of an outer wall of the stator assembly (4). A first heat dissipation portion (26) is provided on the outer surface (212), and at least part of the first heat dissipation portion (26) covers at least part of the periphery of the stator assembly (4). The arrangement facilitates heat dissipation of the stator assembly (4) and extends the service life of the electric oil pump (100).
Inventors:
LU JIANGANG (CN)
WU ZHIWANG (CN)
YIN BINGJIU (CN)
ZHANG KAI (CN)
ZHOU YUBIN (CN)
WU ZHIWANG (CN)
YIN BINGJIU (CN)
ZHANG KAI (CN)
ZHOU YUBIN (CN)
Application Number:
PCT/CN2018/090337
Publication Date:
March 07, 2019
Filing Date:
June 08, 2018
Export Citation:
Assignee:
HANGZHOU SANHUA RES INST CO LTD (CN)
International Classes:
F04C2/10; H02K5/18
Foreign References:
| CN207363874U | 2018-05-15 | |||
| CN207363873U | 2018-05-15 | |||
| CN207420851U | 2018-05-29 | |||
| CN205714508U | 2016-11-23 | |||
| CN204696894U | 2015-10-07 | |||
| CN203348071U | 2013-12-18 | |||
| CN2821225Y | 2006-09-27 | |||
| JP2011032982A | 2011-02-17 | |||
| CN201710770143A | 2017-08-31 |
Other References:
See also references of EP 3677778A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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