Title:
ROTOR ASSEMBLY, MOTOR COMPRISING SAME, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/099529
Kind Code:
A1
Abstract:
A rotor assembly, a motor comprising same, and a device. The rotor assembly (1) comprises: a rotor (20) comprising a rotor core (22) and magnets (23) embedded in the rotor core (22) between axial end surfaces of the rotor (20); and a balancing block (10, 30). A bottom surface (100) of the balancing block (10, 30) faces the axial end surfaces of the rotor (20). The balancing block (10, 30) comprises support portions (110) extending and protruding in an axial direction and a radial direction from a peripheral edge (101) of the bottom surface (100). Each support portion (110) is constructed to form an air gap portion between the balancing block (10, 30) and the magnet (23), and each support portion (110) is located on the radial outer side of the magnet (23).
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Inventors:
GUO HAITAO (CN)
CUI YONGHUA (CN)
WU JIANGANG (CN)
WANG YAXIAO (CN)
YE ZHENNAN (CN)
CUI YONGHUA (CN)
WU JIANGANG (CN)
WANG YAXIAO (CN)
YE ZHENNAN (CN)
Application Number:
PCT/CN2020/128263
Publication Date:
May 19, 2022
Filing Date:
November 12, 2020
Export Citation:
Assignee:
EMERSON CLIMATE TECH SUZHOU CO LTD (CN)
International Classes:
F04C29/00; H02K1/22; H02K5/24; H02K7/04
Foreign References:
| CN105508250A | 2016-04-20 | |||
| CN204243933U | 2015-04-01 | |||
| CN204041461U | 2014-12-24 | |||
| CN204190512U | 2015-03-04 | |||
| CN106998109A | 2017-08-01 | |||
| CN107248791A | 2017-10-13 | |||
| CN208890558U | 2019-05-21 | |||
| JP2010246390A | 2010-10-28 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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