| 摘要 |
<p>A stepping motor having a stator (5, 5', 5") with distal paired auxiliary magnetic poles (58, 58', 58"). The motor includes a rotor (3, 3', 3") having multiple magnetic poles (32, 32', 32") arranged along its circumference at equal intervals and a stator (5, 5', 5"). The stator (5, 5', 5") includes: two sets of main magnetic poles (54, 54', 54") with a body (50, 50', 50") and a coil (52, 52', 52") respectively, and when one of the two sets of main magnetic poles (54, 54', 54") faces a rotor magnetic pole (32, 32', 32"), the other one (54, 54', 54") deviates from a corresponding rotor magnetic pole (32, 32', 32"); auxiliary magnetic poles (56) close to the main magnetic poles which are odd number of said intervals away from the corresponding main magnetic poles (54, 54', 54"); and auxiliary magnetic poles (58, 58', 58") far away from the main magnetic poles which pair up with the auxiliary magnetic poles (56) close to the main magnetic poles respectively.</p> |
