发明授权
US09001459B2 Motor with stator teeth having an increased width and slanted portion
有权
具有定子齿的电机具有增加的宽度和倾斜部分
- 专利标题： Motor with stator teeth having an increased width and slanted portion
- 专利标题（中）： 具有定子齿的电机具有增加的宽度和倾斜部分
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申请号： US13586100申请日： 2012-08-15
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公开(公告)号： US09001459B2公开(公告)日： 2015-04-07
- 发明人: Hiroyuki Abe , Takehito Tamaoka , Kazuhiro Sato
- 申请人： Hiroyuki Abe , Takehito Tamaoka , Kazuhiro Sato
- 申请人地址： JP Kyoto
- 专利权人： Nidec Corporation
- 当前专利权人： Nidec Corporation
- 当前专利权人地址： JP Kyoto
- 代理机构： Keating & BEnnett, LLP
- 优先权： JP2011-188363 20110831; JP2011-247826 20111111
- 主分类号： G11B17/02
- IPC分类号： G11B17/02 ; H02K1/12 ; H02K1/14 ; H02K3/52 ; H02K5/22
摘要：
A stator includes a stator core and a plurality of coils. The stator core includes a core-back and a plurality of teeth portions. Each of the teeth portions includes a coil winding portion, a tip end portion, and an increased width portion. The tip end portion has a circumferential width larger than a smallest width of the coil winding portion. The increased width portion has a circumferential width larger than the smallest width of the coil winding portion. The increased width portion includes a slanted portion extending radially outward and upward. An axial position of a magnetic center of the rotor magnet positioned radially outward of the stator overlaps with an axially extending range of the tip end portion. A thickness of the slanted portion in a direction perpendicular to an upper surface of the slanted portion is smaller than an axial thickness of the coil winding portion.
公开/授权文献
- US20130050873A1 MOTOR AND DISK DRIVE APPARATUS 公开/授权日：2013-02-28
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