公开(公告)号：US20150022052A1

公开(公告)日：2015-01-22

申请号：US14335057

申请日：2014-07-18

Applicant: DENSO CORPORATION

Inventor： Kazuhiro NOBATA ,  Toshiaki OOHARA ,  Youzou MATSUI ,  Yoshiyasu KOZAKI ,  Hiroyuki IKUTA ,  Katsunori KUKI ,  Akio MORI ,  Takashi HOSHIYAMA ,  Yoshihito TAKAHASHI

IPC: H02K1/18

CPC classification number: H02K1/185

Abstract: A stator includes a hollow cylindrical stator core, a stator coil and an outer cylinder. The stator core is comprised of a plurality of core segments that are arranged in a circumferential direction of the stator core to adjoin one another in the circumferential direction. The stator coil is mounted on the stator core. The outer cylinder is fitted on a radially outer periphery of the stator core. The outer cylinder has, at least, a protruding portion and a non-protruding portion. The protruding portion protrudes radially inward to include an abutting part that abuts the radially outer periphery of the stator core. The non-protruding portion extends, without protruding radially inward, to define a radial clearance between the radially outer periphery of the stator core and a radially inner surface of the non-protruding portion. The protruding and non-protruding portions are continuously formed in an axial direction of the outer cylinder.

Abstract translation: 定子包括中空圆柱形定子芯，定子线圈和外筒。 所述定子铁心包括沿着所述定子铁心的圆周方向配置的多个铁芯段，以在所述周向上相互邻接。 定子线圈安装在定子芯上。 外筒安装在定子芯的径向外周上。 外筒至少具有突出部和非突出部。 突出部分径向向内突出以包括邻接定子芯的径向外周的邻接部分。 非突出部分没有径向向内突出地延伸，以在定子芯的径向外周和非突出部分的径向内表面之间限定径向间隙。 突出部和非突出部在外筒的轴向连续形成。