| 摘要 |
PROBLEM TO BE SOLVED: To increase the efficiency of a motor by increasing quantity of copper, without changing the size of the motor. SOLUTION: This motor has a stator 7, which includes (n) teeth (n) is an odd number not smaller than 3} and is wound with distributed wound main windings and auxiliary windings. The width of a tooth, which is disposed at the center of each pole formed by the main winding, and, at the same time is disposed between each two adjacent poles formed by the auxiliary windings, is formed smaller than that of the other teeth.
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