| 摘要 |
PURPOSE:To miniaturize a motor and make it thinner and reduce the cost, by providing a stator yoke with a concave section, and by setting a magnetic induction element at the recessed section. CONSTITUTION:A brushless motor is organized with a housing 18, bearings 20-21, a shaft 17, a main magnet 26 and its back yoke 27, a stator 22, a wind ing type coil 25, and the magnetic induction element 24 of a hole element or the like. In this case, on the surface side confronting the rotor of the stator yoke 22, a recessed section 22A is formed, and the recessed section 22A is provided with the magnetic induction element 24. Then, the level of the magnetic induction element 24 is essentially lowered, and so the winding type coil 25 can be made thinner. |
