公开(公告)号：US10707015B2

公开(公告)日：2020-07-07

申请号：US15460589

申请日：2017-03-16

Applicant: MITSUI HIGH-TEC, INC. ,  MITSUBISHI ELECTRIC CORPORATION

Inventor： Akihiro Hashimoto ,  Masahiko Furuta ,  Toshio Goto ,  Yoshihiro Harada ,  Yoshiro Imazawa

IPC: H01F41/02 ,  H01F3/02 ,  H01F27/26 ,  H01F3/04 ,  H01F27/245 ,  H01F3/00 ,  H01F27/25

Abstract: A method for manufacturing a laminated iron core includes setting a blanking position on a strip-shaped workpiece for iron core pieces each including a yoke piece part having a linear shape and a magnetic pole piece part extending from the yoke piece part, such that a pair of iron core pieces are opposed each other and the magnetic pole piece part of one iron core piece is arranged between adjacent magnetic pole piece parts of the other iron core piece among the pair of iron core pieces, simultaneously blanking a front end side of the magnetic pole piece part and a back surface side of the yoke piece part of the one iron core piece from the strip-shaped workpiece before simultaneously blanking those of the other iron core piece from the strip-shaped workpiece, and blanking the iron core pieces from the strip-shaped workpiece.

公开(公告)号：US10439455B2

公开(公告)日：2019-10-08

申请号：US15512927

申请日：2015-12-09

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Aiko Nakano ,  Atsushi Sakaue ,  Tatsuro Hino ,  Kazunori Muto ,  Yoshihiro Harada ,  Shinkichi Sawa ,  Masashi Nakamura

IPC: H02K1/16 ,  H02K15/02 ,  H02K1/14 ,  H02K3/493 ,  H02K15/06 ,  H02K1/26 ,  H02K15/10

Abstract: A tooth groove is provided at a border portion between a tooth body portion and a protrusion. The angle between a tooth body portion lateral face which is a lateral face in the circumferential direction of the tooth body portion and a tooth body portion stop portion which is a face, of the tooth groove, continued from the tooth body portion lateral face is the right angle or an acute angle. The protrusion is rotated toward the outer side in the circumferential direction, to bring a protrusion stop portion into close contact with the tooth body portion stop portion, the protrusion stop portion being an outer-circumferential-side lateral face of the protrusion, thereby forming a shoe in a tooth.

公开(公告)号：US09397542B2

公开(公告)日：2016-07-19

申请号：US14830051

申请日：2015-08-19

Applicant: Mitsubishi Electric Corporation

Inventor： Kazuya Hasegawa ,  Kazunori Tanaka ,  Yoshiro Imazawa ,  Yoshihiro Harada

IPC: H02K15/06 ,  H02K15/02 ,  H02K15/04 ,  H02K3/12 ,  H02K15/00

CPC classification number: H02K15/062 ,  H02K3/12 ,  H02K15/0037 ,  H02K15/026 ,  H02K15/0435 ,  H02K15/0478 ,  H02K15/06 ,  H02K15/063 ,  H02K15/066 ,  Y10T29/49009 ,  Y10T29/49011

Abstract: The stator winding has winding assemblies that are disposed in a stator core so as to be stacked in three or more layers in a radial direction such that slot-housed portions line up in single columns in a slot depth direction inside slots, and radial widths of return portions of the winding assemblies that are mounted so as to be stacked in a radial direction are made sequentially narrower in order of return portions of a winding assembly that is positioned centrally, return portions of a winding assembly that is positioned on an inner circumferential side, and return portions of a winding assembly that is positioned on an outer circumferential side.

Abstract translation: 定子绕组具有设置在定子铁芯中的绕组组件，以沿径向方向堆叠成三层或更多层，使得狭槽容纳部分在狭槽内的槽深度方向上以单列排列，并且径向宽度 沿着径向堆叠地安装的绕组组件的返回部分按照位于中心的绕组组件的返回部分的顺序依次变窄，位于内周侧的绕组组件的返回部分 以及位于外周侧的卷绕组件的返回部分。