公开(公告)号：US09287741B2

公开(公告)日：2016-03-15

申请号：US14293235

申请日：2014-06-02

Applicant: DENSO CORPORATION

Inventor： Kazuhiro Nobata ,  Toshiaki Oohara ,  Youzou Matsui ,  Yoshiyasu Kozaki ,  Hiroyuki Ikuta

IPC: H02K1/18 ,  H02K15/14 ,  H02K1/14 ,  H02K1/16

CPC classification number: H02K1/185 ,  H02K1/148 ,  H02K1/16 ,  H02K15/14

Abstract: A stator includes a hollow cylindrical stator core comprised of a plurality of stator core segments and an outer cylinder fitted on the radially outer surface of the stator core. The stator core has a recess formed in the radially outer surface and the recess has an engaging wall surface that extends in both the axial and radial directions of the stator core. The outer cylinder has a fastening portion for fastening the outer cylinder to the stator core. The fastening portion is formed to be partially surrounded by a plurality of first slits and a second slit. The fastening portion is bent radially inward to have a second slit-side end part thereof received in the recess of the stator core. Further, the second slit-side end part of the fastening portion has a distal end engaging with the engaging wall surface of the recess of the stator core.

Abstract translation: 定子包括中空圆柱形定子铁芯，其包括多个定子铁芯段和安装在定子铁芯的径向外表面上的外圆筒。 定子芯具有形成在径向外表面中的凹部，并且凹部具有在定子芯的轴向和径向方向上延伸的接合壁表面。 外筒具有用于将外筒紧固到定子芯的紧固部。 紧固部形成为被多个第一狭缝和第二狭缝部分地包围。 紧固部分径向向内弯曲以使其第二狭缝侧端部容纳在定子芯的凹部中。 此外，紧固部的第二狭缝侧端部具有与定子芯的凹部的接合壁表面接合的远端。