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High-speed magnetic levitation motor with novel air cooling structure

An air-cooled structure, high-speed motor technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of unable to cooperate with the installation of the cooling system, to achieve the effect of ensuring safe and stable operation, ensuring control accuracy, and reducing flow resistance

Pending Publication Date: 2018-02-27
天津飞旋高速电机科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this type of air-cooled structure can cool the magnetic bearing, there are two to three air outlets of the motor, which are located on both sides of the magnetic bearing, and it is almost impossible to cooperate with the cooling system.

Method used

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  • High-speed magnetic levitation motor with novel air cooling structure
  • High-speed magnetic levitation motor with novel air cooling structure
  • High-speed magnetic levitation motor with novel air cooling structure

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 , Figure 5 , Figure 7 As shown, this embodiment provides a magnetic levitation high-speed motor with a new air-cooled structure, including a casing 1, a stator 2, a stator winding 3, a rotor 4, and a magnetic levitation bearing 5, and the casing is designed with an air inlet 6 and an air outlet Tuyere 7. The air-cooled bypass of the present invention has designed ventilation interlayer 8 to realize function on casing 1.

[0029] Such as figure 1 As shown, when the cooling air enters from the air inlet 6, there is a cooling air path for cooling the stator 2, the stator winding 3 and the rotor 4, and another cooling air can also pass through the gap between the magnetic suspension bearing and the rotor, and Along the air-cooled bypass, it flows to the other end of the magnetic suspension bearing for cooling the magnetic suspension bearing. In the present embodiment, the ventilation interlayer 8 and the casing 1 are integrally formed, so that the ...

Embodiment 2

[0032] Such as Figure 6 , Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that the structure of the air-cooled bypass is that a wind collecting hood 10 is installed at both ends of the magnetic suspension bearing, and the two wind collecting hoods are connected by a ventilation pipe 11, and the ventilation pipe 11 It is integrated with the casing 1 by welding or tube expansion technology. In this embodiment, there are 8 ventilation tubes 11 for connecting the two wind collecting hoods 10 . In addition, a support plate 12 is welded between the ventilation pipe 11 and the casing 1, and this design is beneficial to enhance the overall stability of the high-speed motor. The working principle of the air-cooled bypass in this embodiment is consistent with that of Embodiment 1.

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Abstract

The invention relates to a high-speed magnetic levitation motor with a novel air cooling structure. The motor comprises a stator, a stator winding, a rotor and a magnetic levitation bearing, wherein the stator, the stator winding, the rotor and the magnetic levitation bearing are installed in a casing of the motor, and an air inlet and an air outlet are formed in the casing. The air inlet is communicated with the air outlet through multiple channels of cooling wind paths, at least one of the cooling wind paths is used for cooling the stator winding, the rotor and the stator, and at least one cooling wind path is an air cooling by-path and is used for cooling the magnetic levitation bearing, wherein the air cooling by-path is provided with a communication part used for making the two ends of the magnetic levitation bearing communicated. The air inlet is communicated with the inner side of the portion, at the air inlet end, of the magnetic levitation bearing, the air outlet is communicated with the inner side of the portion, at the air outlet end, of the magnetic levitation bearing, and the outer sides of the portions, at the two ends, of the magnetic levitation bearing are communicated through the communication part of the air cooling by-path. In the high-speed magnetic levitation motor, the flow resistance in the motor is greatly reduced by using the parallel wind paths so thatthe power of an air cooling supporting fun can be greatly reduced, and the cost of associated air cooling equipment can be reduced.

Description

technical field [0001] The invention relates to the technical field of magnetic levitation high-speed motors, in particular to a magnetic levitation high-speed motor with a novel air-cooled structure. Background technique [0002] In the prior art, the magnetic levitation high-speed motor has the characteristics of high efficiency and high power density, the corresponding loss density is also relatively large, and the temperature rise of the motor is relatively high. Excessive temperature rise at the stator winding will lead to winding insulation failure, excessive temperature rise of the rotor will cause permanent magnet demagnetization, and excessive temperature rise at the magnetic bearing will reduce the control accuracy of the magnetic bearing. In order to ensure the safe and stable operation of the motor, it is necessary to develop a new cooling structure according to the characteristics of the magnetic levitation high-speed motor. At the same time, in order to ensure...

Claims

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Application Information

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IPC IPC(8): H02K5/20
CPCH02K5/20
Inventor 邓仁杰毕刘新衣富成
Owner 天津飞旋高速电机科技有限公司
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