| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive versatile cooling structure, which can improve the cooling efficiency of a small-sized motor and can be applied to a small-sized high-output motor. SOLUTION: Between a motor housing 1 and an armature 3 of a small-sized motor A, a flow 8 is provided as a guide member which concentratedly cools the winding 7 of an armature 3, by guiding the cooling air from a cooling fan 4 to the winding 7.
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