| 摘要 |
PROBLEM TO BE SOLVED: To materialize a motor fan more effectively suppressing external impact to a bearing. SOLUTION: The present motor fan includes a motor having a housing, an impeller disposed within the housing, a rotor integrated with the impeller, a pair of ball bearings movably fitted on a bearing box to pivotally support the rotor, and a stator opposed to the inner circumferential surface of the rotor with a small gap interposed therebetween. The pair of ball bearings are fitted between opposed outer rim end surfaces via a spacer of an elastic member made of rubber or an elastomer molding formed to generate incremental repulsive force by compressing clearance therebetween. COPYRIGHT: (C)2009,JPO&INPIT
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