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

Gree Electric Appliances, Inc. of Zhuhai

Gree Green Refrigeration Technology Center Co.,ltd

Changguang Guo

Xiaobo Zhang

Jinxin Jia

Fang Zhang

Jianning Liu

Guanghai Li

Gao Gong

Siyuan Tian

Yusheng Hu

Chao Zhang

Jiuzhan Su

Chengbao Zhong

Qiong Wei

Bowen Xiong

Liming Peng

Zeye Wang

Hanxin Wang

Jin Yan

Zhongyu Li

Jiandong Liang

The present disclosure relates to a motor rotor, a permanent magnet motor, and an electric vehicle. The motor rotor includes a rotor core () and permanent magnets (). The rotor core () includes mounting slots (). The permanent magnets () are arranged in the mounting slots (). An included angle between two mounting slots () forming a V-shaped structure in the mounting slots () is Δ. A numerical value of a thickness of the permanent magnets () is L4 when a unit thereof is mm. A numerical value of a width of the permanent magnets () is L5 when a unit thereof is mm. 110°≤Δ≤140°. A numerical value of Δ=(18 to 20)*L4, L5≥2*L4.

Motor rotor, permanent magnet motor, and electric vehicle

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

The present disclosure relates to a stator assembly of a magnetic suspension bearing and a manufacturing method, wherein the stator assembly includes stator cores, coils and two stator core frames, two of the stator core frames being respectively engaged at both ends of the stator core along an axial direction thereof, wherein a concave portion is provided at an engaged end of one of the stator core frames, and a convex portion is provided at an engaged end of the other of the stator core frames, the concave portion and the convex portion are engaged with each other, and each of the coils is wound correspondingly to teeth of the stator cores.

Stator assembly of a magnetic suspension bearing and manufacturing method

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

The present invention provides a protective structure for a magnetic bearing and a magnetic bearing assembly. The protective structure for a magnetic bearing comprises: a first radial bearing protective component, sleeved on a shaft and in a position corresponding to a magnetic bearing, a first gap being radially formed between the first radial bearing protective component and the shaft; and a second radial bearing protective component, sleeved on the shaft and in a position corresponding to the magnetic bearing, a second gap being radially formed between the second radial bearing protective component and the shaft; the height of a working gap being greater than the height of the second gap, the height of the second gap being greater than the height of the first gap. The protective structure for the magnetic bearing and the magnetic bearing assembly effectively solve the problem of lower security between a magnetic bearing and a shaft, since a protective structure for the magnetic bearing is prone to failure in the prior art.

Protective structure for magnetic bearing and magnetic bearing assembly

An axial magnetic bearing includes a bearing body and a protective device. The bearing body includes a stator and a rotor. The protective device includes a first assembly fixedly mounted relative to the stator and a second assembly fixedly mounted relative to the rotor. One of the first assembly and the second assembly includes a first stopping portion, and the other of the first assembly and the second assembly includes a second stopping portion and a third stopping portion. A part of the first stopping portion is axially located between the second stopping portion and the third stopping portion. A protection gap of the protective device is smaller than a working gap of the bearing body.

Axial magnetic bearing having a protective device

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Zhuhai, China

Changguang Guo