| 摘要 |
<p>The motor has permanent magnets (4, 5) retained at a wall of a pole housing (2). An armature (3) is rotatably mounted opposite to the pole housing. A small air gap is formed between a lateral surface of the armature and radial inwardly lying sides of the magnets. The magnets are made of different magnetic materials, which have different magnetic flux densities and different geometries. One of the magnets (5) with high flux density includes a small thickness than the other magnet (4) with small flux density. Axial lengths of the magnets are same or different.</p> |
