| 摘要 |
<p>The motor has a coal holder device for reversal of rotation direction, where the holder device has a brush carrier that is opposite to a stator of the motor in a clockwise rotation position and anticlockwise rotation position. A switching arrangement (45) has a switching contact unit (46b) at a side of the stator and switching contact units (48a, 48b) at a side of a brush. The switching arrangement is adjustable by the brush carrier, where the contact units are enclosed opposite to the coal holder device.</p> |
