| 摘要 |
The present invention relates to a micro motor structure, which includes a hub, a rib structure, an inner ring, an outer ring and at least two micro actuators in which a top edge of the hub is projected outwards to form an upper lid having at least two protrusions in form of rectangular tooth, triangle or arc so that the upper lid is in point contact with the inner wall of the inner ring. As such, in spite of collision between the inner ring and the upper lid, when the micro actuators drive the rib structure, the inner ring and the outer ring to rotate, mutual abrasion between the upper lid and the inner ring is alleviated due to the point contact therebetween, thereby prolonging the lifespan of the micro motor. |
