| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor capable of increasing its output and attaining downsizing. SOLUTION: A reduction gear 14 is built in a fan motor 10 of an automobile, and the rotation of an armature 12 is decelerated by the reduction gear 14 and is outputted to a fan of the automobile by an output shaft 15. The reduction gear 14 is provided with a sun gear consisting of a gear section 21c of a rotating shaft 21, a ring gear consisting of a ring gear section 18b of a housing case 18, and a planetary gear 25 disposed between the sun gear and the ring gear, and is stored in a core 20 of the armature 12.
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