| 摘要 |
PROBLEM TO BE SOLVED: To reform the core so as to make the diameter of an electric motor smaller as far as possible. SOLUTION: Both end faces in axial direction of the circular yoke part 13a of a stator core 13 (and/or rotor core) are inclined to the axis of an electric motor so as not to be vertical. Both end faces in axial direction of a magnetic pole 13b are vertical to the axis of the electric motor.
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