Gree Electric Appliances, Inc. of Zhuhai

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

Gree Green Refrigeration Technology Center Co.,ltd

Gao Gong

Fang Zhang

Chao Zhang

Xiaobo Zhang

Xin Li

Yusheng Hu

Jianning Liu

Jiuzhan Su

Siyuan Tian

Jinxin Jia

Guanghai Li

Changguang Guo

Mingxing Deng

Ruhao Dong

Jianhui Wang

Weilin Guo

Penghui Liu

Dunying Zhong

Fei Wang

Bin Chen

Mingzhu Dong

Chengbao Zhong

Qiong Wei

Hao Liang

Weijie Zhao

Zhanqin Liu

Zhitao Wei

Zhehao Deng

Rui Wu

Jiajia Liu

The present disclosure relates to a stator of a magnetic levitation bearing, a magnetic levitation bearing, and a compressor. The stator of the magnetic levitation bearing includes 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 ().

Stator of magnetic levitation bearing, magnetic levitation bearing, and compressor

The present disclosure provides a stator core, a magnetic levitation bearing, and a motor. The stator core is used in the magnetic levitation bearing and includes an annual yoke. The annular yoke has an inner circumferential wall and an outer circumferential wall, a plurality of pole pillars are disposed on the inner circumferential wall, and each of the plurality of pole pillars extends towards an axis of the inner circumferential wall, there is a distance D between an axis of the outer circumferential wall and the axis of the inner circumferential wall, and D≠0 is satisfied. According to the stator core, the magnetic levitation bearing, and the motor of the present disclosure, the stator core has a non-centrosymmetric structure, so that a cross-sectional area of a magnetic path in some region of the stator core is increased, which is beneficial to an improvement of an output force of the magnetic levitation bearing.

Stator core, magnetic levitation bearing, and motor

A radial stator includes a stator core, and the stator core includes a stator outer ring. M magnetic poles are arranged on an inner circumferential wall of the stator outer ring, and are evenly distributed along the inner circumferential wall of the stator outer ring. The M magnetic poles include Mmagnetic poles arranged along the inner circumferential wall of the stator outer ring and Mmagnetic poles arranged along the inner circumferential wall of the stator outer ring; M≥2, M≥1, and M≤1; the Mmagnetic poles and the Mmagnetic poles are arranged on two sides of the stator outer ring with respect to a radial direction thereof, respectively; each of the Mmagnetic poles is provided with a first winding; and each of the Mmagnetic poles is provided with a second winding; and a coil turn Nof the first winding is greater or less than a coil turn Nof the second winding.

Radial stator, magnetic levitation bearing, installation method, and motor

Disclosed are a magnetic bearing, a compressor and an air conditioner. The magnetic bearing includes a radial stator, wherein the radial stator has a plurality of stator teeth extending inwardly in a radial direction thereof; two axial stators are arranged on two axial sides of the stator teeth, respectively; and radial control coils are wound on the stator teeth, each radial control coil being located outside an area of the stator teeth covered oppositely by the two axial stators. The magnetic bearing, the compressor and the air conditioner can effectively reduce the degree of coupling between a radial electromagnetic control magnetic circuit and an axial electromagnetic control magnetic circuit, and reduce the control difficulty of the magnetic bearing.

Magnetic bearing, compressor and air conditioner

The present disclosure provides a magnetic suspension bearing stator, a compressor and an air conditioner. The bearing stator includes a frame, a bearing iron core and an axial winding, the frame is provided with an accommodation recess used to position the axial winding. A position-limiting portion is disposed in the accommodation recess, and the position-limiting portion is used to keep the axial winding in the accommodation recess. The frame is provided with a first positioning portion for connecting with the bearing iron core on the outer wall surfaces of both sides of the accommodation recess. The frame is not easy to come out from the bearing core, and the axial winding is not easy to come out from the frame, so that the relative position between the axial winding and the bearing iron core is fixed.

Bearing stator, compressor and conditioner

Magnetic levitation bearing structure includes a cylinder body, a rotating shaft, a motor stator, a motor rotor, an axial bearing, a radial bearing and a displacement sensing device; the displacement sensing device, the axial bearing stator, and the radial bearing stator are directly fixed on an inner wall of the cylinder body.

Magnetic levitation bearing structure and magnetic levitation compressor structure

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 X; 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.

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

The present disclosure provides a wiring structure of a magnetic suspension bearing, a compressor and an air conditioner. The wiring structure of a magnetic suspension bearing, for electrically connect a control coil of the magnetic suspension bearing with an external power source, includes a circuit board; wherein the number of the magnetic suspension bearing is two or more, and the control coils of the two or more magnetic suspension bearings are all configured to electrically connect to the circuit board, and the circuit board is configured to connect to the external power source. The present disclosure has the advantages of reasonable design, simple structure, implementation of integrating wiring of multiple magnetic suspension bearings, simplification of wiring work, improvement of production efficiency, and improvement of wiring reliability.

Wiring structure of magnetic suspension bearing, compressor and air conditioner

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.

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Zhuhai, China

Gao Gong