Title:
PERMANENT MAGNET MOTOR, COMPRESSOR, AND REFRIGERATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/082577
Kind Code:
A1
Abstract:
The present application provides a permanent magnet motor, a compressor, and a refrigeration apparatus. The permanent magnet motor comprises a motor rotor (100), a motor stator (200), and a stator winding. The motor rotor (100) comprises a rotor core and a plurality of permanent magnets (110) arranged on the rotor core, and the permanent magnets (110) contain x% of cerium element by mass. The motor stator (200) comprises a stator core surrounding the outer side of the rotor core, and the stator core is provided with a plurality of stator teeth (210) in an inner circumferential direction. The stator winding is wound around each stator tooth (210), the number of turns of the stator winding on each stator tooth (210) is N, and the number of branches connected in parallel in each phase of the stator winding is a. When the connection form of the stator winding on the stator teeth (210) is a Y-shaped connection, N/a satisfies N/a≤5.2(25-x); and when the connection form of the stator winding on the stator teeth (210) is a triangular connection, N/a satisfies N/a≤5.2(25-x)×sqrt(3).
Inventors:
YANG QIN (CN)
GAI RUI (CN)
GUO JINBO (CN)
YAO JUN (CN)
QIU XIAOHUA (CN)
GAI RUI (CN)
GUO JINBO (CN)
YAO JUN (CN)
QIU XIAOHUA (CN)
Application Number:
PCT/CN2023/087144
Publication Date:
April 25, 2024
Filing Date:
April 07, 2023
Export Citation:
Assignee:
GUANGDONG MEIZHI COMPRESSOR CO LTD (CN)
International Classes:
H02K1/276
Foreign References:
| CN114285200A | 2022-04-05 | |||
| CN111555480A | 2020-08-18 | |||
| CN111555478A | 2020-08-18 | |||
| CN108418486A | 2018-08-17 | |||
| GB2506683A | 2014-04-09 | |||
| JP2019161945A | 2019-09-19 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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