Title:
ELECTRIC MOTOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/082798
Kind Code:
A1
Abstract:
Disclosed in the present application are an electric motor and the use thereof. The electric motor comprises a rotor (100) and a stator (200) enclosing the rotor (100). The rotor (100) comprises an iron core (110) and permanent magnets (120) arranged on the iron core (110); the width of an air gap of the electric motor is δ, and the number of magnetic poles in the rotor (100) is 2 P; the permanent magnet (120) contains x % (mass percent) of cerium, and the value of x ranges from 3 to 10; the thickness of the permanent magnets (120) is h, and the sum of the widths of the permanent magnets (120) in each magnetic pole is w, wherein x ≤ 23 * h - 25, 1 + δ ≤ h ≤ 1.4 + δ, and 2.5 * x + 15 ≤ 2P * h * w/5 ≤ 4 * x + 37; and all the units of h, w and δ are mm.
Inventors:
YAO JUN (CN)
GUO JINBO (CN)
GAI RUI (CN)
QIU XIAOHUA (CN)
GUO JINBO (CN)
GAI RUI (CN)
QIU XIAOHUA (CN)
Application Number:
PCT/CN2023/113569
Publication Date:
April 25, 2024
Filing Date:
August 17, 2023
Export Citation:
Assignee:
GUANGDONG MEIZHI COMPRESSOR CO LTD (CN)
International Classes:
H02K1/276; H02K1/02
Foreign References:
| CN114285200A | 2022-04-05 | |||
| CN105598438A | 2016-05-25 | |||
| CN107464645A | 2017-12-12 | |||
| CN107610858A | 2018-01-19 | |||
| CN108922710A | 2018-11-30 | |||
| EP4068317A1 | 2022-10-05 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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