Brushless plastic motor and manufacturing method thereof

Abstract

The invention is applicable to the field of brushless motors, and discloses a brushless plastic motor. The brushless plastic motor comprises an injection moulding bottom housing, a rotating shaft, an injection moulding head cover, a stator, a magnet and a tube, wherein the bottom housing comprises a bottom plate part and a convex extending part; an axial through hole is formed in the convex extending part; bearings are arranged in ports of the two ends of the axial through hole in an embedding manner; the rotating shaft is arranged on the bearings in a penetrating manner; the head cover is arranged on the rotating shaft in a sleeving manner; the stator is arranged on the convex extending part of the bottom housing in a sleeving manner; the magnet is arranged on the stator in a sleeving manner; the tube is arranged on the magnet in a sleeving manner; and the head cover is butted with the bottom housing. According to the brushless plastic motor, the bottom housing provided with the convex extending part and the head cover provided with an inner cavity are adopted, the rotating shaft penetrates through the convex extending part of the bottom housing and then is butted with the head cover, the stator, the magnet and the tube are contained in the inner cavity of the head cover, and the bottom housing and the head cover adopt injection moulding and serve as protective housings and mounting carriers of components, so that the structure of the brushless motor is simplified greatly, the processing procedure and the processing time of the brushless motor are reduced greatly, and the production efficiency is improved greatly.

Description

Technical field [0001] The invention belongs to the field of brushless motors, and particularly relates to a brushless plastic motor and a manufacturing method thereof. Background technique [0002] The existing outer-rotating brushless motors usually have a shell made by machining through a series of transmission processes such as turning, milling, sandblasting and oxidation. In the later assembly process, the head cover and the tube need to be riveted together, the shaft and the head cover are riveted together, and then the screws and glue are applied. With this processing method, a shell needs to go through many processing processes from raw materials to finished products, such as turning, milling, sandblasting and oxidation, and sometimes electroplating processes are needed, so it has long processing times and complex production processes. , High cost and other issues; due to more processes, the scrap rate is also high, resulting in the high cost of the entire motor. Summar...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a brushless plastic motor and its manufacturing method, aiming to solve the problem of long shell processing time, complex production process and motor production problems caused by the complex shell processing process of the brushless plastic motor in the prior art. high cost problem

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