| 摘要 |
PURPOSE:To scale down the size of a motor by forming radial slits at the central section of a magnetic pole for a surface facing type rotor magnet and mounting a coil having the same shape as said slits onto a printed substrate. CONSTITUTION:A flat type motor is constituted of a rotor magnet 14, a rotor yoke 2, a shaft 4, a stator coil 5, a printed substrate 9 fitted between the rotor magnet 14 and the stator coil 5, etc. In this case, a slit 15 is shaped at the central section of one magnetic pole of the rotor magnet 14, and a coil-shaped pattern having the same width W and length L as the slit 15 is also formed to the printed substrate 9. Accordingly, one rotational pulse can be acquired per revolution in the coil pattern, thus also scaling down the size of the titled motor. |
