Title:
ELECTRIC MOTOR STATOR AND ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2023/077884
Kind Code:
A1
Abstract:
Provided in the present disclosure are an electric motor stator and an electric motor. The electric motor stator comprises a core outer sleeve (1) and a stator core (2), wherein the core outer sleeve (1) is sleeved outside the stator core (2); the core outer sleeve (1) is provided with winding outer grooves (3); core outer teeth (4) are formed between the winding outer grooves (3); the core outer teeth (4) are provided with axial channels (5) extending in an axial direction of the stator core (2); end portions of adjacent axial channels (5) are provided with communication recesses (6); sealing covers (7) are arranged outside the communication recesses (6); communication channels, which communicate the adjacent axial channels (5) with each other, are formed between the sealing covers (7) and the communication recesses (6); and the axial channels (5) sequentially communicate with each other by means of the communication channels, so as to form cooling channels connected in series. According to the electric motor stator of the present disclosure, an end winding can be effectively cooled, such that the electric motor stator is more uniformly cooled and the cooling effect is better.
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Inventors:
LI GUANGHAI (CN)
ZHANG FANG (CN)
GONG GAO (CN)
LIANG JIANDONG (CN)
HU XIONG (CN)
LIU ZIBIN (CN)
ZHANG FANG (CN)
GONG GAO (CN)
LIANG JIANDONG (CN)
HU XIONG (CN)
LIU ZIBIN (CN)
Application Number:
PCT/CN2022/108235
Publication Date:
May 11, 2023
Filing Date:
July 27, 2022
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
H02K1/12; H02K1/16; H02K1/20; H02K3/12; H02K3/24; H02K9/19
Foreign References:
| CN114069899A | 2022-02-18 | |||
| CN111509875A | 2020-08-07 | |||
| CN106059121A | 2016-10-26 | |||
| CN101728904A | 2010-06-09 | |||
| CN104852554A | 2015-08-19 | |||
| JPH0993869A | 1997-04-04 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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