公开(公告)号：US20140028146A1

公开(公告)日：2014-01-30

申请号：US13917523

申请日：2013-06-13

Applicant: Hitachi, Ltd.

Inventor： Shinji SUGIMOTO ,  Akiyoshi KOMURA ,  Mamoru KIMURA ,  Seikichi MASUDA ,  Masatoshi KOIKE ,  Mikio ENDO

IPC: H02K1/26

CPC classification number: H02K1/265 ,  H02K17/20 ,  H02K2213/03

Abstract: An induction motor includes: a stator and a rotor arranged so as to face the stator via a void, the rotor including conductor bars in a plurality of slots formed by a plurality of teeth arranged so as to extend in the circumferential direction of a rotatably held rotor core, wherein the circumferential width of distal end portions of the slots on the radially outside of the rotor core are narrowed by distal end portion of the teeth on the radially outside of the rotor core, and the teeth are each formed with a projection protruding in an arcuate shape from the distal end of the tooth on the radially outside of the rotor core toward the conductor bar in each of the slots.

Abstract translation: 感应电动机包括：定子和转子，其经由空隙布置成面向定子，所述转子包括由多个齿形成的多个槽中的导体条，所述多个槽被布置成沿可旋转地保持的圆周方向延伸 转子芯，其中转子芯的径向外侧上的槽的前端部的周向宽度由转子芯的径向外侧上的齿的前端部变窄，并且齿分别形成有突出部 在转子芯的径向外侧上的齿的远端处的弓形形状朝向每个槽中的导体杆。