Title:
ELECTRIC MOTOR ROTOR AND ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2022/193592
Kind Code:
A1
Abstract:
Provided are an electric motor rotor and an electric motor, the electric motor rotor comprising a rotor core and a plurality of permanent magnets, wherein the plurality of permanent magnets are arranged in the circumferential direction of the rotor core so as to form a plurality of magnetic poles in the circumferential direction of the rotor core, the magnetization directions of two adjacent magnetic poles are opposite to each other, an angle between the magnetic domain orientation of the permanent magnet in each magnetic pole and the center line of the magnetic pole is α, and α is not less than 0 degrees and is not more than 40 degrees, so as to form a magnetic characteristic where the magnetic flux density is large at the center of the magnetic pole and gradually decreases towards two ends in the circumferential direction.
Inventors:
GE MENG (CN)
LI WENRUI (CN)
LAN HAI (CN)
WU GUYU (CN)
GONG LIMING (CN)
LI WENRUI (CN)
LAN HAI (CN)
WU GUYU (CN)
GONG LIMING (CN)
Application Number:
PCT/CN2021/119322
Publication Date:
September 22, 2022
Filing Date:
September 18, 2021
Export Citation:
Assignee:
MIDEA WELLING MOTOR TECH SHANGHAI CO LTD (CN)
International Classes:
H02K1/27
Domestic Patent References:
| WO2019219985A2 | 2019-11-21 |
Foreign References:
| CN112865370A | 2021-05-28 | |||
| CN113113989A | 2021-07-13 | |||
| CN111834116A | 2020-10-27 | |||
| CN101816117A | 2010-08-25 | |||
| CN105762999A | 2016-07-13 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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