| 摘要 |
PURPOSE:To improve the environment resistance and to reduce the vibrating noise by retaining a rear cover by the projections of an insulator bush which covers an electric coupling portion around lead wirings. CONSTITUTION:A rotor 3 is rotated at a high speed in a stator 2 by energizing to induce an AC electromotive force at a stator coil 2b, and the power is electrically coupled through stator coil lead wirings 2c and a frame 1 to a rectifier 5. An insulator bush 9 compressed and retained between the rectifier 5 and the frame 1 around the lead wirings 2c, covered with the electric coupling portion, and formed of an elastic material integrated with projections compressed fixedly at the inside of a rear cover 10. As a result, the corrosion resistance and the vibration resistance of the wirings 2c and the connected portion of the wirings 2c and a terminal base of the rectifier 5 are improved, and the vibrating noise of the cover 10 can be reduced. |
