| 摘要 |
<p>PURPOSE: To provide an electronic commutator driving motor capable of radiating heat from a power transistor promptly and surely with high output without largely increasing a space for the driving motor. CONSTITUTION: A driving motor includes a rotor 32, a plurality of permanent magnets 38 included in the rotor 32 as a rotating body with backward magnetic path, and a stator 12. The permanent magnets 38 are provided in at least a circumferential wall located in parallel with a rotating axis 46. In an electronic commutator driving motor 10, the stator 12 holds a winding 22 and has a support body 16 for a printed circuit board 58 having a commutator control element in a way that the printed circuit board 58 extends at right angles with a rotor rotating axis 46 on the support body side far from the rotor 32. In addition, the support body 16 has a ring surrounding wall 42 for covering the rotor 32 to such an extent that the permanent magnets 38 are surrounded thereby.</p> |
