Title:
MAGNETIC LEVITATION ACTIVE THREE-DEGREE-OF-FREEDOM BEARING, MOTOR, AND COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2024/078087
Kind Code:
A1
Abstract:
A magnetic levitation active three-degree-of-freedom bearing, a motor, and a compressor. The magnetic levitation active three-degree-of-freedom bearing comprises: an axial magnetic bearing (100), a radial magnetic bearing (200) and a bearing rotor (7), the axial magnetic bearing (100) comprising a first axial stator (300) and a second axial stator (400), and the radial magnetic bearing (200) comprising a radial stator (500). The radial stator (500) is located on the periphery of the bearing rotor (7) and can apply a radial electromagnetic force to the bearing rotor (7). The first axial stator (300) and the second axial stator (400) can apply an axial electromagnetic force to the bearing rotor (7); at least part of the structure of the first axial stator (300) is located on the radial outer side of the bearing rotor (7) and located on the radial inner side of a radial winding (5), and at least part of the structure of the second axial stator (400) is located on the radial outer side of the bearing rotor (7) and located on the radial inner side of the radial winding (5), so that a bias magnetic flux of the radial magnetic bearing (200) is provided by the axial magnetic bearing (100). The first axial stator (300) and the second axial stator (400) provide a bias magnetic circuit for the radial stator, thereby omitting original structures such as a bias stator, thus achieving a more compact and simpler structure, lowering the process difficulty, reducing the size, and making assembly easy.
Inventors:
GUO WEILIN (CN)
GONG GAO (CN)
ZHANG CHAO (CN)
GONG GAO (CN)
ZHANG CHAO (CN)
Application Number:
PCT/CN2023/108639
Publication Date:
April 18, 2024
Filing Date:
July 21, 2023
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F16C32/04
Foreign References:
| CN115654008A | 2023-01-31 | |||
| CN218913477U | 2023-04-25 | |||
| CN108825655A | 2018-11-16 | |||
| CN104265761A | 2015-01-07 | |||
| CN110017330A | 2019-07-16 | |||
| JP2011085223A | 2011-04-28 | |||
| US20200235635A1 | 2020-07-23 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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