Disk permanent magnet composite brushless motor

Abstract

The invention relates to a disk permanent magnet composite brushless motor. The motor comprises a stator (1), a winding (2), a static magnet adjusting ring (3), a magnet gear outer rotor (4), a rotor yoke iron core (5) and a permanent magnet (6), wherein the magnet gear outer rotor (4) is integrated with an enclosure; the permanent magnet (6) is uniformly embedded on the rotor yoke iron core (5) along a circumferential direction; the stator (1) has a disk slotting structure; the winding (2) is embedded in a stator slot; and the static magnet adjusting ring (3) has a disk structure and is arranged between the magnet gear outer rotor (4) and the stator (1). In the motor, an inner rotor is saved on the basis of the conventional magnet gear structure, so processing technology is simplified, permanent magnet materials are saved and larger vibration and noise which are produced by the inner rotor are also eliminated simultaneously.

Description

technical field [0001] The invention relates to a novel disk-type permanent magnet composite brushless motor, which belongs to the new special motor technology. Background technique [0002] At present, ordinary cylindrical motors have some weaknesses, such as difficult cooling and low utilization of the rotor core; at the same time, mechanical gearboxes are used in many transmission fields to achieve speed-up or speed-down to meet system requirements. However, this also greatly increases the size and weight of the entire transmission system, and the investment cost increases accordingly. In addition, the disadvantages of high noise, low efficiency, low transmission accuracy, and slow response are also its shortcomings. The wear of the gearbox will reduce the system. life and reliability. [0003] Disk motor has its unique advantages. At the same time, the concept of magnetic gear has been gradually promoted, and its application range will continue to expand. Here, the disk...

AI Technical Summary

Problems solved by technology

[0008] Technical problem: The present invention solves the problems of low power density, mechanical wear and noise of the mechanical speed-increasing gearbox in the existing transmission device by proposing a disc-type permanent magnet composite brushless motor. The inner rotor of a magnetic gear is omitted, the manufacturing process of the device is simplified, the volume, weight and manufacturing cost of the motor are reduced, the efficiency is improved, and the large vibration and noise brought by the inner rotor are also removed.

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