Brushless plastic motor and manufacturing method thereof

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.