Magnetic suspension bearing, motor, compressor and air conditioner

Abstract

The invention provides a magnetic suspension bearing, a motor, a compressor and an air conditioner. The magnetic suspension bearing comprises a thrust bearing (1), axial bearing stators (2) and an axial displacement detection device (3), wherein the axial displacement detection device (3) is used for detecting the axial position of the thrust bearing (1), the axial bearing stators (2) are arrangedat the two axial ends of the thrust bearing (1) respectively, and the axial displacement detection device (3) is arranged on at least one axial bearing stator (2). The axial bearing stator (2) is provided with an outgoing line circuit board (6), an outgoing line terminal (7) is arranged on the outgoing line circuit board (6), and an outgoing line of the axial displacement detection device (3) isconnected to the outgoing line terminal (7) through the outgoing line circuit board (6). According to the magnetic suspension bearing, the number of system wire outlet terminals can be reduced, the connection structure is simplified, the structure cost is reduced, and the connection quality is improved.

Description

[0001] This application is a divisional application of a Chinese patent application submitted to the China Patent Office on "May 13, 2019" with the application number "201910395606.2" and the title of the invention is "Magnetic Suspension Bearing, Motor, Compressor and Air Conditioner". technical field [0002] The application belongs to the technical field of air conditioning, and in particular relates to a magnetic suspension bearing, a motor, a compressor and an air conditioner. Background technique [0003] Magnetic suspension bearings have the characteristics of no mechanical contact, no lubrication, high critical speed, long service life and high reliability, and are widely used in high-speed and ultra-high-speed fields. As an indispensable part of the magnetic levitation system, the sensor’s detection accuracy is very important. Improving the position detection accuracy of the magnetic levitation system can not only improve the overall performance of the system but als...

AI Technical Summary

Problems solved by technology

[0006] Since the sensor needs to be connected with the controller, etc., it is necessary to connect wires to the sensor and use the outlet terminal to realize the outlet connection, and the outlet wire of the axial bearing stator also needs to be connected to the controller through the outlet terminal, so it needs more Many outlet terminals realize these connection structures, and more outlet terminals will make the wiring structure more complicated, the cost will be higher, and it may cause connection quality problems

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