Gree Electric Appliances, Inc. of Zhuhai

Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai

Gree Green Refrigeration Technology Center Co.,ltd

Qiong Wei

Fang Zhang

Xiaobo Zhang

Jianning Liu

Jinxin Jia

Guanghai Li

Changguang Guo

Liming Peng

Bowen Xiong

Yusheng Hu

Gao Gong

Siyuan Tian

Jin Yan

Zhongyu Li

Jiandong Liang

Zeye Wang

Disclosed are a motor rotor and a permanent magnet motor. The motor rotor includes: a rotating shaft; a magnetic layer fixedly sleeved on the rotating shaft; a first heat diffusion layer wrapped on an outer surface of the magnetic layer away from the rotating shaft for preventing a shielding layer from overheating locally; and the shielding layer wrapped on a surface of the first heat diffusion layer away from the magnetic layer. The first heat diffusion layer is provided between the shielding layer and the magnetic layer of the motor rotor, so that the first heat diffusion layer can prevent the shielding layer and the magnetic layer from overheating locally, and improve heat dissipation efficiency of the shielding layer.

Motor rotor and permanent magnet motor

Provided are a rotor shaft assembly, a rotor, and a motor. The rotor shaft assembly includes a magnetic core, a first end shaft, a second end shaft, and a protective sleeve. The protective sleeve is provided, in sequence, with a first through hole, a second through hole, and a third through hole; the first end shaft is disposed through the first through hole, at least part of the magnetic core is arranged inside the second through hole, and the second end shaft is disposed through the third through hole.

Rotor shaft assembly, rotor and motor

A magnetic levitation bearing assembly, including: a magnetic levitation bearing, a shell, and a working clearance adjusting device; the magnetic levitation bearing includes a first iron core, a second iron core and a thrust disk; the working clearance adjusting device is arranged between a radial inner periphery of the shell and the thrust disk along the radial direction, and between the shell and the second iron core along the axial direction; an axial end of the working clearance adjusting device is abutted against the second iron core, a void gap is provided between the shell and the second iron core, an adjustment on the magnetic levitation bearing working clearance is made possible by altering the length between two axial ends of the working clearance adjusting device, such that the working clearance is consistent with a design value.

Magnetic levitation bearing assembly and compressor

Growing community of inventors

Zhuhai, China

Qiong Wei