发明申请
- 专利标题: STEP MOTOR
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申请号: US12820032申请日: 2010-06-21
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公开(公告)号: US20110001367A1公开(公告)日: 2011-01-06
- 发明人: SEONG-KWAN OH , Hyun-Ki Yang , Ki-Hwan Hong , Hyuk-Sang Ahn
- 申请人: SEONG-KWAN OH , Hyun-Ki Yang , Ki-Hwan Hong , Hyuk-Sang Ahn
- 优先权: KRKR10-2009-0060477 20090703
- 主分类号: H02K37/12
- IPC分类号: H02K37/12
摘要:
Disclosed herein is a PM type step motor used to move a camera or an optical pickup lens of media related equipment. The step motor has a stator unit including first and second stators which butt against and are coupled to each other and each have a bobbin and a yoke attached thereto. Terminal blocks of the first and second stators are spaced apart from each other when the first and second stators are coupled to each other, thus allowing an automatic winding operation using winding equipment to be easily performed. The step motor includes a bushing which has in a central portion thereof a through hole through which a rotating shaft passes and is a two-stage structure having a small outer diameter part and a large outer diameter part, thus allowing the stator unit, the rotating shaft and a casing unit to easily be arranged coaxially.
公开/授权文献
- US08237315B2 Step motor 公开/授权日:2012-08-07