发明名称 VIBRATING-TYPE MOTOR
摘要 A vibrating-type motor is provided, in which a restoring force is reduced without reducing a thrust increasing effect by auxiliary magnets, thereby to reduce the size and expense of the motor while increasing efficiency. The vibrating-type motor includes a moving part having a main magnet and auxiliary magnets individually junctioned coaxially to two axial end portions of the main magnet, an exciting yoke including two leg portions opposed to the moving part through a gap and arranged coaxially with the moving part, an exciting coil wound on the exciting yoke for generating a magnetic flux in the leg portions, and a back yoke arranged to confront the exciting yoke with the moving part located between the back yoke and the exciting yoke, wherein outer-side end portions of the exciting yoke extend past axial end portions of the back yoke.
申请公布号 US2008197720(A1) 申请公布日期 2008.08.21
申请号 US20080035091 申请日期 2008.02.21
申请人 FUJI ELECTRIC SYSTEMS CO., LTD. 发明人 MATSUMOTO NOBORU;OHSHIMA KEISHI;MIZOGUCHI YOSHINORI
分类号 H02K33/00 主分类号 H02K33/00
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