公开(公告)号：US20190305654A1

公开(公告)日：2019-10-03

申请号：US16447889

申请日：2019-06-20

Applicant: Mitsui High-tec, Inc.

Inventor： Satoshi MATSUBAYASHI ,  Yukio MATSUNAGA ,  Yusuke HASUO ,  Yusuke ETO ,  Hayato NAKAYAMA

IPC: H02K15/02 ,  H02K1/16 ,  B21D39/03

Abstract: A method of manufacturing a stacked core includes: forming a stack by stacking a plurality of core members, each of the plurality of core members including one or more blanked members blanked by a die from a metal plate along a predetermined shape; removing one core member of the plurality of core members from the stack; supplying adhesive to the one core member removed from the stack; and stacking the one core member next to an adjacent core member of the plurality of core members so that the adhesive is placed between the one core member and the adjacent core member.

公开(公告)号：US20220115935A1

公开(公告)日：2022-04-14

申请号：US17558644

申请日：2021-12-22

Applicant: Mitsui High-tec, Inc.

Inventor： Iwao MYOJIN ,  Yusuke HASUO ,  Yusuke ETO ,  Hayato NAKAYAMA

IPC: H02K15/10 ,  H02K1/04 ,  H02K3/52 ,  H02K15/00 ,  H02K15/02

Abstract: A stator core comprises a stack and a resin portion. The stack comprises an annular yoke portion, a plurality of tooth portions, and a plurality of slots. The resin portion covers an inner wall surface of a slot of the plurality of slots. The resin portion protrudes outward relative to an end surface of the stack in a height direction of the stack. The resin portion is formed on at least a part of an end surface of the tooth portion so as to extend from the inner wall surface of the slot around the end surface of the tooth portion. A resin end portion of the resin portion is disposed on the end surface of the stack and a corner of the resin end portion is formed as an inclined surface including a planar surface or curved surface.