A magnetic suspended rotor support system, a magnetic suspension motor and a dust collector

Abstract

The invention relates to the technical field of motors, and especially relates to a magnetic suspended rotor support system, a magnetic suspension motor and a dust collector provided with the motor. The magnetic suspended rotor support system includes a shell, a radial displacement sensor, a radial magnetic bearing and an axial magnetic bearing; the radial displacement sensor, the radial magnetic bearing and the axial magnetic bearing are all coaxially arranged in the shell; the shell is provided with an opening at one end in the direction of arrangement of the radial displacement sensor, the radial magnetic bearing and the axial magnetic bearing to receive a motor stator core; and the other end of the shell is provided with a shaft hole for a rotor shaft to extend to the outside. The structure is compact, and the invention is applicable to production of miniature motors. The modularization production of the motor is realized; the quantity of parts is relatively small in the modularization production; the coaxiality of the parts in the magnetic suspended rotor support system can be firstly guaranteed; the raise of the coaxiality precision of the whole motor can be facilitated; the production efficiency can be raised; and the cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of electric motors, in particular to a small magnetic levitation rotor support system, a magnetic levitation motor and a vacuum cleaner provided with the motor. Background technique [0002] Small electric motors are the most common form of converting electrical energy into mechanical energy and have a wide range of applications in household appliances and industry. The traditional motor mainly includes the motor stator part, the motor rotor part, the rotor support bearing and the casing part. The motor stator part and the motor rotor part are connected by mechanical bearings or have mechanical contact, so there is mechanical friction during the movement of the electronic rotor. [0003] Mechanical friction not only increases the frictional resistance of the rotor, wears out the moving parts, produces mechanical vibration and noise, but also causes heating of the parts and deterioration of the performance of...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a magnetic levitation rotor support system to solve the problem that the magnetic levitation motor cannot be miniaturized and the production cost is high in the prior art;

[0006] Another object of the present invention is to provide a magnetic levitation motor, which solves the problems that small motors in household appliances and industrial fields cannot achieve high-speed operation and have low service life in the prior art

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