BRUSHLESS MOTOR WITH FREQUENCY GENERATOR

摘要

PURPOSE:To facilitate to provide a dynamic balance and to enable to inexpensively manufacture a brushless motor by forming plastic magnets on both side surfaces of a rotor yoke. CONSTITUTION:A rotor is formed of a rotor shaft 5 and a rotor body 6, a rotor yoke 7 having a through hole 8 and the rotational shaft 5 are integrally molded by molding with plastic magnets. The plastic magnet 15 on the upper surface of the yoke 7 and the plastic magnet 15 on the lower surface are integrated through the hole 8, and the yoke 7 is integrated. A pole for detecting a frequency is magnetized at the magnet 14. A pole for driving is magnetized at the magnet 15.