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公开(公告)号：US20220209593A1
公开(公告)日：2022-06-30
申请号：US17613169
申请日：2019-10-02
发明人： Tomoyuki KINOSHITA , Tatsuro HINO , Kouta KATSURAGI , Satoshi EKINO , Kazuya HASEGAWA , Norihiro MURATA , Akihito MORI
摘要： An outer-circumferential side of a core-back portion of a stator iron core has a welding portion that is provided in such a way as to ride on two or more electromagnetic steel plates including electromagnetic steel plates situated at a stacking-direction end portion of the stator iron core; the welding portion is provided partly in the stacking-direction of the stator iron core.
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公开(公告)号：US20220109354A1
公开(公告)日：2022-04-07
申请号：US17350278
申请日：2021-06-17
发明人： Akihito MORI , Naoya HASHIMOTO , Kiyoshi NAKANO , Kazuya HASEGAWA , Norihiro MURATA , Tomoyuki KINOSHITA , Kensaku KUROKI
摘要： In a method for manufacturing a core element which is used for a divisional layer stack core of a rotary electric machine, the method includes: a first punch cutting out process for punch cutting out a first core element having a product shape, from a belt like electromagnetic steel sheet, with a press mechanism which has a feeding device of the electromagnetic steel sheet, a feeding process for feeding the electromagnetic steel sheet, with the feeding device, and a second punch cutting out process for positioning with a product shaped pilot which has an external shape of the core element, using a punch cut out trace shape of the first core element, and producing a second core element having the product shape, by punch cutting out with the press mechanism.
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公开(公告)号：US20230129627A1
公开(公告)日：2023-04-27
申请号：US17728208
申请日：2022-04-25
发明人： Akihito MORI , Kota HIROHASHI , Kazuya HASEGAWA , Tomoyuki KINOSHITA , Norihiro MURATA , Kimiyasu FURUSAWA , Masahiro YUYA
IPC分类号： H02K15/02
摘要： A manufacturing method for a laminated core of a rotating electric machine includes a laminating step and a core separating step. In the laminating step, a plurality of core elements are laminated, thereby forming an element laminate. In the core separating step, under a state in which the element laminate is pressed in a lamination direction of the plurality of core elements, a part of the element laminate is moved from the element laminate in a direction orthogonal to the lamination direction by a set dimension in the lamination direction, thereby obtaining a separated laminate.
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