Title:
PERMANENT MAGNET MOTOR, COMPRESSOR AND REFRIGERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/083076
Kind Code:
A1
Abstract:
A permanent magnet motor, a compressor and a refrigerating device, the permanent magnet motor comprising a motor rotor (100) and a motor stator (200). The motor rotor (100) comprises a rotor core and multiple permanent magnets (120) provided on the rotor core, the number of poles 2P of the motor rotor (100) is greater than or equal to 8, the total width of each pole magnet is bm, the permanent magnet (120) contains x% elemental cerium by mass, and bm satisfies the following relation: bm ≥ 2200/(150-x). The motor stator (200) comprises a stator core and a stator winding wound around the stator core, the stator core is located around the outside of the rotor core, the stator core is provided with a number Q of stator teeth (220) along an inner circumference, the tooth width of the stator teeth (220) is bt, and the following relation is satisfied: Q×bt/(P×bm) ≤ 1.36-x/100 ≤ 5×Q×b t/(4×P×b m).
Inventors:
YANG QIN (CN)
GAI RUI (CN)
GUO JINBO (CN)
YAO JUN (CN)
GAI RUI (CN)
GUO JINBO (CN)
YAO JUN (CN)
Application Number:
PCT/CN2023/124743
Publication Date:
April 25, 2024
Filing Date:
October 16, 2023
Export Citation:
Assignee:
GUANGDONG MEIZHI COMPRESSOR CO LTD (CN)
International Classes:
H02K1/276; H02K1/02; H02K1/14
Foreign References:
| CN218387003U | 2023-01-24 | |||
| CN114285200A | 2022-04-05 | |||
| JP2010034522A | 2010-02-12 | |||
| CN111555478A | 2020-08-18 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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