| 摘要 |
PURPOSE:To improve the starting property of a brushless motor without providing an auxiliary salient pole by providing a magnetized end of substantially triangular shape projected toward the rotating direction of a rotor at the end of the rotor in its rotating direction at each pole of a rotor magnet. CONSTITUTION:A rotor 34 is held in a stopping state in a magnetic relationship between a rotor magnet 33 and the phase poles 20-25 of a stator 19 in the state that a motor is stopped. At this time, at least one magnetized end 35a of the rotor in its rotating direction of a magnetized part 35 of each end pole of the magnet 33 is opposed to the part of other phase pole disposed adjacently at the side of rotating direction from the phase pole of the stator 19 opposed to the part 35. A motor is started by the energization of the phase pole by a current flowing in a winding wound on the pole of the stator 19 opposed partly to the end 35a at the time of starting. |
