| 摘要 |
PURPOSE:To enhance the efficiency of a motor by providing a projecting portion to a yoke and by arranging a motor driving coil so that the hollow portion of the motor driving coil wound like a doughnut can be put to the projecting portion. CONSTITUTION:A projecting portion 7 is provided on the fixedly-put-on portion of a driving coil of a yoke 2 for a flat type brushless motor. A motor driving coil 1 is so arranged as to fit the hollow portion of the motor driving coil 1 wound like a doughnut to the projecting portion 7. In this composition, the gap between a magnet 4 and the yoke 2 as well as a rotor 3 can be minimized without regard to the thickness of the motor driving coil 1. The efficiency of the motor can therefore be enhanced and a flat type DC motor extremely suitable for practical use can be obtained. |
