Title:
STATOR CORE, MAGNETIC SUSPENSION BEARING, AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2022/037137
Kind Code:
A1
Abstract:
The present invention provides a stator core, a magnetic suspension bearing, and a motor. The stator core is used in the magnetic suspension bearing and comprises an annular yoke portion, the annular yoke portion comprises an inner circumferential wall and an outer circumferential wall, the outer circumferential wall is provided with a plurality of poles extending towards the axis direction of the inner circumferential wall, a distance D exists between the axis of the outer circumferential wall and the axis of the inner circumferential wall, and D is not equal to zero. According to the stator core, the magnetic suspension bearing, and the motor of the present invention, the stator core is of a non-centrosymmetric structure, so that the cross-sectional area of a magnetic circuit of the stator core in a partial area is increased, and thus the output of the magnetic suspension bearing is facilitated to be improved.
Inventors:
GUO WEILIN (CN)
GONG GAO (CN)
ZHANG FANG (CN)
LI XIN (CN)
DENG ZHEHAO (CN)
WANG JIANHUI (CN)
GONG GAO (CN)
ZHANG FANG (CN)
LI XIN (CN)
DENG ZHEHAO (CN)
WANG JIANHUI (CN)
Application Number:
PCT/CN2021/093064
Publication Date:
February 24, 2022
Filing Date:
May 11, 2021
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
H02K1/12; H02K7/09
Foreign References:
| CN107005115A | 2017-08-01 | |||
| US3845997A | 1974-11-05 | |||
| CN102891545A | 2013-01-23 | |||
| JP2020162348A | 2020-10-01 | |||
| CN112003391A | 2020-11-27 | |||
| JP2018183021A | 2018-11-15 | |||
| CN202010842317A | 2020-08-20 |
Other References:
See also references of EP 4203245A4
Attorney, Agent or Firm:
BEIJING XURUN LAW FIRM (CN)
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