公开(公告)号：US09136746B2

公开(公告)日：2015-09-15

申请号：US14315344

申请日：2014-06-26

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Ikuta ,  Yuusuke Hara ,  Nobuyuki Kimura ,  Kuniharu Teshima

IPC: H02K1/18 ,  H02K15/02 ,  H02K1/14 ,  H02K15/06

CPC classification number: H02K15/02 ,  H02K1/148 ,  H02K1/185 ,  H02K15/024 ,  H02K15/066 ,  Y10T29/49009

Abstract: A stator includes a hollow cylindrical stator core comprised of a plurality of stator core segments, a stator coil mounted on the stator core, and an outer cylinder that is fitted on the radially outer surfaces of the stator core segments so as to fasten the stator core segments together. The stator core has a recess formed in the radially outer surface of one of the stator core segments. The outer cylinder has a slit that radially penetrates the outer cylinder to connect the radially outer and inner surfaces of the outer cylinder and an engaging portion that adjoins the slit. The engaging portion of the outer cylinder is plastically deformed radially inward into the recess of the stator core so as to abut and thereby engage with side walls of the recess which face the engaging portion.

Abstract translation: 定子包括由多个定子铁芯段组成的中空圆柱形定子铁芯，安装在定子铁心上的定子线圈和安装在定子铁芯段的径向外表面上的外筒，以便将定子铁芯 细分在一起 定子芯具有形成在一个定子铁芯段的径向外表面中的凹部。 外筒具有径向穿透外筒以连接外筒的径向外表面和内圆筒的狭缝以及与狭缝相邻的接合部。 外筒的接合部分径向向内塑性变形到定子芯的凹部中，从而与面对接合部分的凹槽的侧壁相接触并与之接合。