发明名称 Brushless motor including thrust bearing
摘要 The present invention provides a low vibration brushless motor for reducing the vibration of the motor in an axial direction. In the brushless motor, a bearing is provided in a bearing boss, a shaft is held by the bearing, an end face of the shaft is contacting a thrust receiving member, and the shaft is rotatably axially supported by the bearing. The brushless motor includes a permanent magnet for attracting the end face of the shaft in the thrust direction with the thrust receiving member therebetween, and a bottom receiving part for supporting the permanent magnet, wherein the bearing boss, bearing, shaft, and bottom receiving part are made of a magnetic material, and a closed magnetic path is formed so that a magnetic flux passes through the permanent magnet, bottom receiving part, bearing boss, bearing, and shaft.
申请公布号 US7015612(B2) 申请公布日期 2006.03.21
申请号 US20040991422 申请日期 2004.11.19
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 FUJINAKA HIROYASU;MASUDA KUMIO
分类号 H02K5/16;H02K5/167;F16C17/08;F16C39/06;G11B19/20;H02K5/24;H02K7/08;H02K7/09 主分类号 H02K5/16
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