Invention Grant
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
- Patent Title: Motor with stator teeth having an increased width and slanted portion
- Patent Title (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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Application No.: US13586100Application Date: 2012-08-15
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Publication No.: US09001459B2Publication Date: 2015-04-07
- Inventor: Hiroyuki Abe , Takehito Tamaoka , Kazuhiro Sato
- Applicant: Hiroyuki Abe , Takehito Tamaoka , Kazuhiro Sato
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Keating & BEnnett, LLP
- Priority: JP2011-188363 20110831; JP2011-247826 20111111
- Main IPC: G11B17/02
- IPC: G11B17/02 ; H02K1/12 ; H02K1/14 ; H02K3/52 ; H02K5/22
Abstract:
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.
Public/Granted literature
- US20130050873A1 MOTOR AND DISK DRIVE APPARATUS Public/Granted day:2013-02-28
Information query
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