| 摘要 |
PURPOSE:To obtain a compact step motor by providing an oscillator block on one end side of a coil and also providing a rotor on the other end side. CONSTITUTION:An internal hollow zone of a stator yoke 7 formed tubularly is partitioned with a side plate 8, a coil frame 3 is enclosed in one space 9, and an oscillator block 1 in which a crystal oscillating unit, a frequency dividing circuit, an inverter, etc. are incorporated is enclosed in another space 10. There is then provided a magnetic pole toothed plate 12 in the one space 9, and a rotor 16 is supported by a rotary shaft 6 projecting from an iron core 5 penetrating the center of the coil frame 3 oppositely to the magnetic pole toothed plate 12. Then, an end of a coil 4 wound on the coil frame 3 is connected to an output terminal 4a of the oscillator block 1, and a terminal 2 of the oscillator block 1 is projected from a cover 11 provided on an opening of the other space 10. By arranging thus, a motor is made compact, and from forming the side plate 8 with iron plate, an influence of disturbance on the oscillator block 1 can be decreased. |
