| 摘要 |
PURPOSE:To stably rotate a drive motor by suppressing a noise by operating a magnetic coupling force between a stator and a slider. CONSTITUTION:A stator is composed by bonding a piezoelectric unit 1b for generating a drive force to a magnetic unit 1a for generating a magnetic coupling force, and the composite unit of them is operated as a vibrator. A rotor 2 is composed of a material such as Alnico or ferrite having characteristics of a permanent magnet to generate a magnetic coupling force with the stator to provide a magnetic coupling force between the stator and the rotor 2. With this construction, a rotary force is effectively transmitted to the rotor 2, and a supersonic drive motor can be stably rotated without noise. |
