MAGNETIC SUSPENSION ACTIVE THREE-DEGREE-OF-FREEDOM BEARING, MOTOR, AND COMPRESSOR

WIPO Patent Application WO/2024/078084

A1

Disclosed are a magnetic suspension active three-degree-of-freedom bearing, a motor, and a compressor. The magnetic suspension 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 comprises a first axial stator (300) and a second axial stator (400), and the radial magnetic bearing comprises a radial stator (500), which is located on the outer circumference of the bearing rotor (7) and can apply a radial electromagnetic force to the bearing rotor. The first axial stator and the second axial stator can apply an axial electromagnetic force to the bearing rotor, at least part of the structure of the first and second axial stators is located on a radial outer side of a radial winding (5), and a part of the structure of the first and second axial stators is connected to a radial outer end of a radial core (6), so that a bias flux of the radial magnetic bearing is provided by the axial magnetic bearing. An original structure such as a bias stator is omitted from the described bearing, the structure is more compact and simpler, the processing difficulty is reduced, the size is reduced, and assembly is easy.

JPH09100835	MAGNETIC BEARING DEVICE
JP3785521	CONTROL TYPE MAGNETIC BEARING DEVICE
JPH01255716	SUPERCONDUCTIVE BEARING

GUO WEILIN (CN)
GONG GAO (CN)
ZHANG CHAO (CN)

PCT/CN2023/108191

April 18, 2024

July 19, 2023

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GREE ELECTRIC APPLIANCES INC OF ZHUHAI (CN)

F16C32/04

CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)

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