| 摘要 |
PURPOSE: A motor is provided to prevent the waste of the noise and electricity created under high speed rotation by securing the stable rotation of a rotor. CONSTITUTION: A motor includes a rotor(300), a shaft(500), a bearing(502), a holder(504), a stator(400), and a spacer. A driving magnet(306) is combined with the rotor. The shaft is combined with the rotor. The bearing supports the shaft to be rotatable. The holder supports the bearing. The stator is combined on the outer circumference of the holder in order to locate to be close with the driving magnet. The spacer is combined to the holder facing the rotor. A groove is formed in the upper side of the spacer to generate air current.
|
