| 摘要 |
PURPOSE:To realize easily thinning and miniaturizing a motor apparatus by fastening a housing to a rotor part or forming said housing integrally with said rotor part to make a rotating part and by rotating said rotating part around a shaft in a fixed state. CONSTITUTION:A rotor part 4 composed of a rotor plate 2 and a magnet 3 held on said plate 2 is fastened to or formed integrally with a lower part of the outer periphery of a covered cylinder-like housing 8 so as to be coaxial with said housing 8. On the other hand, a shaft 7 is inserted into the covered cylinder of the housing 8, and the lower end of said shaft 7 is fastened to a yoke plate 6 while its upper end touches the inner surface of a cover of the housing 8. Then, if electric power is supplied to a driving coil 5 formed on the yoke plate 6, a rotating part composed of the rotor part 4 and the housing 8 rotates around the shaft 7. If this unit is constituted in said manner, its thinning and miniaturization can be realized without requiring projection of the shaft 7 from th housing 8. |
