公开(公告)号：US20230253863A1

公开(公告)日：2023-08-10

申请号：US18012357

申请日：2021-07-26

Applicant: AISIN CORPORATION ,  ART METAL MFG. CO., LTD.

Inventor： Masaki IKEDA ,  Toshihiko OKAZAWA

IPC: H02K15/02 ,  B22D19/00

CPC classification number: H02K15/024 ,  B22D19/0054

Abstract: A method of manufacturing a stator for a rotary electric machine includes: a step of preparing a stator core formed from a first metal material that is magnetic, the stator core having a space provided on a radially inner side and in which a rotor is to be disposed; a blocking step of covering at least a part of an end surface of the stator core in an axial direction and blocking the space using a blocking member; and a casting step of pouring a second metal material that is non-magnetic to a radially outer side of the stator core with at least a part of the end surface of the stator core covered and with the space blocked through the blocking step in a die.

公开(公告)号：US20230291286A1

公开(公告)日：2023-09-14

申请号：US18012514

申请日：2021-07-26

Applicant: AISIN CORPORATION ,  ART METAL MFG. CO., LTD.

Inventor： Masaki IKEDA ,  Toshihiko OKAZAWA ,  Satoshi MURAKAMI

IPC: H02K15/02 ,  H02K1/32 ,  B22C9/24 ,  B22C9/10 ,  B22D25/02

CPC classification number: H02K15/024 ,  B22C9/10 ,  B22C9/24 ,  B22D25/02 ,  H02K1/32

Abstract: A manufacturing method of a cooling member to be used for a rotary electric machine. The manufacturing method includes a preparation step for preparing a plurality of annular collapsible cores having radial projections and recesses, a stacking step for concentrically stacking the plurality of collapsible cores along a direction of extension of a rotational axis of the rotary electric machine, a casting step for pouring a material of the cooling member into a die with the plurality of collapsible cores stacked in the die so that the material covers outer peripheral surfaces and inner peripheral surfaces of the plurality of collapsible cores, and a removal step for removing the plurality of collapsible cores after the casting step.

公开(公告)号：US20220247272A1

公开(公告)日：2022-08-04

申请号：US17618524

申请日：2020-07-29

Applicant: AISIN CORPORATION ,  ART METAL MFG. CO., LTD.

Inventor： Satoshi MURAKAMI ,  Masaki IKEDA ,  Toshihiko OKAZAWA

IPC: H02K9/19 ,  H02K5/20

Abstract: A stator cooling structure including a supporting member that is a single piece member having a cylindrical form going in an axial direction of a rotating electrical machine and that supports a stator core of the rotating electrical machine and forms a passage through which fluid for cooling passes. The supporting member has an inner wall part that supports an outer circumferential surface of the stator core and has a cylindrical form; an outer wall part that faces a radial outer side of the inner wall part and has a cylindrical form; and one or more division wall parts that extend in a radial direction between the inner wall part and the outer wall part and divide the passage formed between the inner wall part and the outer wall part.