Title:
ROTOR ASSEMBLY, ROTOR, AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2023/060846
Kind Code:
A1
Abstract:
The present application provides a rotor assembly, a rotor, a motor. The rotor assembly comprises: multiple first rotor punching sheets, which comprise first mounting holes; at least one second rotor punching sheet, the at least one second rotor punching sheet and the multiple first rotor punching sheets being stacked, and the at least one second rotor punching sheet being located at the end portions of the multiple first rotor punching sheets along the axial direction of the rotor assembly; and permanent magnets, which are provided in the first mounting holes, wherein in the axial direction of the rotor assembly, the at least one second rotor punching sheet is used for shielding at least some of the first mounting holes, and the end portions of the permanent magnets abut against the at least one second rotor punching sheet. According to the rotor assembly provided by the present application, the end portions of the permanent magnets mounted in the first mounting holes are axially limited by means of the at least one second rotor punching sheet; and the permanent magnets are fixed without providing a limiting member on at least one end of the rotor assembly, such that the axial size of the motor is reduced, and the assembly difficulty of the rotor assembly is reduced.
Inventors:
ZHAO LIDAN (CN)
DING WEIBING (CN)
LI RUILEI (CN)
DING WEIBING (CN)
LI RUILEI (CN)
Application Number:
PCT/CN2022/083039
Publication Date:
April 20, 2023
Filing Date:
March 25, 2022
Export Citation:
Assignee:
GUANGDONG MIDEA INTELLIGENT TECHNOLOGY CO LTD (CN)
SERVOTRONIX MOTION TECH DEVELOPMENT SHENZHEN CO LTD (CN)
DORNA TECH CO LTD (CN)
SERVOTRONIX MOTION TECH DEVELOPMENT SHENZHEN CO LTD (CN)
DORNA TECH CO LTD (CN)
International Classes:
H02K1/274; H02K1/27; H02K1/276; H02K15/03
Foreign References:
| CN113964980A | 2022-01-21 | |||
| CN216086285U | 2022-03-18 | |||
| CN110890799A | 2020-03-17 | |||
| CN105978194A | 2016-09-28 | |||
| CN112350473A | 2021-02-09 |
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
Download PDF: