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1. 发明公开

EP2023465A2 Motor and electric power steering apparatus 审中-公开
标题翻译：电动机和伺服电机
公开(公告)号：EP2023465A2
公开(公告)日：2009-02-11
申请号：EP08161983.5
申请日：2008-08-07
申请人： JTEKT CORPORATION
发明人： Kato, Hisataka
IPC分类号： H02K1/14
CPC分类号： H02K1/148 , H02K7/06
摘要： A motor 10 includes a cylindrical housing 2 having an inner circumferential surface 2a, and a stator core 13 accommodated in the housing 2. The stator core 13 includes a plurality of separate cores 30, which are annularly arranged along the inner circumferential surface 2a of the housing 2. Each separate core 30 includes a core back 31, which forms a part of the cylinder of the stator core 13, and a tooth 15, which project radially inward from the core back 31. The core back 31 is formed such that vertices A1, A2 of the corners of an arcuate portion 32 in the radially outer side are inside a range between rays L1, L2 that extend from a center point O of the stator core toward vertices B1, B2 of the corners of a straight portion 33 of the core back 31 in the radially inner side.
摘要翻译：电动机10包括具有内周面2a的圆柱形壳体2和容纳在壳体2中的定子芯13.定子芯13包括多个分离的芯30，其沿着内周面2a的内周表面2a环形地布置每个分离的芯30包括形成定子芯13的圆筒的一部分的芯背31和从芯背31径向向内突出的齿15.芯背31形成为顶点在径向外侧的圆弧部32的角部的A1，A2位于从定子铁芯的中心点O向直线部33的角部的顶点B1，B2延伸的射线L1，L2之间的范围内芯背31在径向内侧。

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