Title:
ELECTRIC MOTOR AND CENTRIFUGAL AIR COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2022/016950
Kind Code:
A1
Abstract:
Provided are an electric motor and a centrifugal air compressor. The electric motor comprises a housing, a stator and a rotor, wherein the stator is arranged in the housing, the stator is provided with a rotor cavity, the rotor is rotatably arranged in the rotor cavity, and a gap is provided between the rotor and the stator. In the electric motor with a dual cooling effect and the centrifugal air compressor, a cooling circulation pipeline is arranged between the stator and the housing, and the cooling circulation pipeline is spirally arranged, such that the effective cooling of the stator by the cooling circulation pipeline is increased. Moreover, by means of providing an airflow channel, an air-cooling gas is led into the rotor cavity, and an axial flow channel is arranged to have a certain inclination angle, such that 360° annular air blowing cooling is achieved; and the airflow direction of the axial flow channel is the same as the rotation direction of the rotor, such that an airflow can generate a certain driving force for the rotor, thereby reducing working power consumption.
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Inventors:
LIU HUA (CN)
ZHANG ZHIPING (CN)
YE WENTENG (CN)
CHEN YUHUI (CN)
ZHANG ZHIPING (CN)
YE WENTENG (CN)
CHEN YUHUI (CN)
Application Number:
PCT/CN2021/091528
Publication Date:
January 27, 2022
Filing Date:
April 30, 2021
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
H02K9/02; H02K9/19
Foreign References:
| CN111864990A | 2020-10-30 | |||
| CN208862675U | 2019-05-14 | |||
| CN210958009U | 2020-07-07 | |||
| CN1745509A | 2006-03-08 | |||
| US20050151431A1 | 2005-07-14 | |||
| CN202183694U | 2012-04-04 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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