US 12,345,294 B2
Stator of magnetic levitation bearing, magnetic levitation bearing, and compressor
Weilin Guo, Zhuhai (CN); Fang Zhang, Zhuhai (CN); Gao Gong, Zhuhai (CN); Chao Zhang, Zhuhai (CN); Xin Li, Zhuhai (CN); and Hao Liang, Zhuhai (CN)
Assigned to GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Zhuhai (CN)
Appl. No. 18/002,185
Filed by GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Zhuhai (CN)
PCT Filed Apr. 30, 2021, PCT No. PCT/CN2021/091352
§ 371(c)(1), (2) Date Dec. 16, 2022,
PCT Pub. No. WO2022/068198, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 202011052716.8 (CN), filed on Sep. 29, 2020.
Prior Publication US 2023/0340993 A1, Oct. 26, 2023
Int. Cl. F16C 32/04 (2006.01)
CPC F16C 32/0461 (2013.01) [F16C 32/047 (2013.01); F16C 2226/32 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A stator of a magnetic levitation bearing, comprising:
a stator core;
a stator coil wound around the stator core;
a housing sleeved outside the stator core and having a clearance fit or a transition fit with the stator core; and;
a potting component filled between the housing and the stator core, the potting component extending along an axial direction of the stator core from one end of the stator core to an opposite end of the stator core;
wherein the housing comprises a housing positioning hole, the stator core comprises a stator positioning hole, the stator of the magnetic levitation bearing further comprises a positioning member extending through the housing positioning hole and into the stator positioning hole;
wherein an outer peripheral surface of the stator core comprises a bonding groove, and the stator positioning hole is disposed at a bottom of the bonding groove; and
wherein the potting component further comprises a second protruding portion filled in the bonding groove.