Permanent-magnet linear motor and flexible-cavity compressor

Abstract

The invention relates to a permanent magnet linear motor and a flexible cavity compressor. The permanent magnet linear motor includes a stator and a mover. The mover is a permanent magnet radiation ring mover. The ring mover includes a transmission shaft and a ring-shaped permanent magnet, the ring-shaped permanent magnet is a permanent magnet closed loop integrally formed and magnetized by radiation, the stator includes a silicon steel outer ring formed by overlapping multi-layer silicon steel sheets and a radial direction formed by the inner surface of the silicon steel outer ring A plurality of extended inner silicon steel sheets, coil windings are wound on each inner silicon steel sheet, and the coil windings on the plurality of inner silicon steel sheets of each stator are sequentially wound by a copper wire. The above-mentioned motor adopts an integrally formed permanent magnet radiation ring mover, which has a simple and compact structure, energy saving and environmental protection. Moreover, the permanent magnet radiation ring is a closed-loop structure, which prevents magnetic flux leakage and improves the power and efficiency of the motor. The coils of the stator do not affect each other, without interference or overlap, which improves the power of the motor.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a permanent magnet linear motor and a soft-cavity compressor. Background technique [0002] Electric motors have become one of the most critical key components in industrial production and are widely used in various industrial machines, for example, they are used in compressors to drive pistons. Compressors usually use rotating motors to drive mechanical parts to compress and do work. The existence of devices such as screws and crankshafts consumes part of the energy. Reciprocating compressors consume more energy to convert rotational motion into linear motion through mechanical systems, and the energy efficiency conversion rate is relatively low. . Therefore, compressors tend to use linear motors. [0003] South Korea, the United States and other countries have used linear motors to drive piston cylinders to achieve compression and produce linear compressors. There is no such a...

AI Technical Summary

Problems solved by technology

The winding method of the motor stator will cause the magnetic force lines generated between each pair of coils to interfere with each other, causing magnetic force loss, affecting the utilization of permanent magnet magnetism, reducing the power of the motor, and the intensity distribution of the magnetic force lines is uneven, resulting in low efficiency of the permanent magnet motor. It is difficult to effectively increase the power

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