METHOD OF MANUFACTURING MOTOR

摘要

In manufacturing a DC motor body including a motor magnet, conventionally, a magnetized magnet is fitted to one by one to the cylindrical molding core and a motor body is injection-molded within a cavity formed between a motor body forming mold and a cylindrical molding core to which the magnet is attached. Therefore, the magnet should previously be molded and stocked before molding the motor body, thus being not applicable to mass-production processes. To overcome the above problems, the motor magnet and the motor body are molded in sequence in accordance with two separate molding steps by the use of the same molding core. This method can eliminate troublesome magnetic fitting work, the need of magnet stock and enhance the dimensional precision of motor magnet, thus being applicable to mass-production process while increasing the energy transduction efficiency of the DC motor.