Magnetic levitation bearing, magnetic levitation rotor support assembly, and compressor

US11323007B2 · kind B2 · utility

Assignee

• Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai · CN

Inventors

• Xiaobo ZHANG · Shanghai, CN
• Gao Gong · Zhuhai, CN
• Yusheng Hu · Beijing, CN
• Jianning Liu · 安丰镇, CN
• Fang Zhang · Zhuhai, CN
• Siyuan Tian · Zhuhai, CN
• Chao Zhang · 安丰镇, CN
• Jiuzhan Su · Zhuhai, CN
• Xin Li · Beijing, CN

Key dates

• Filing date: Oct 29, 2018
• Grant date: May 3, 2022
• Expiry date: May 2, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2380/26
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A magnetic levitation bearing, a magnetic levitation rotor support assembly, and a compressor. The magnetic levitation bearing is used for supporting a rotor by interacting with a thrust disc on the rotor, and comprises: a radial stator core having an annular structure, which is disposed on a radial outer side of the thrust disc and corresponds to the thrust disc in an axial direction of the rotor, the radial stator core and the thrust disc being separated by a first radial gap X1; and a radial control coil, which is disposed on the radial stator core and can generate a radial electromagnetic force to the thrust disc in a radial direction of the rotor.