公开(公告)号：US11081945B2

公开(公告)日：2021-08-03

申请号：US16550653

申请日：2019-08-26

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yasushi Nishikuma ,  Daisuke Mizushima ,  Yasuyuki Hirao

IPC分类号： H02K15/00 ,  H02K15/06 ,  B23P19/02 ,  H01R43/20

摘要： Provided is a manufacturing method for a stator coil in which end portions of one-side conductor segments inserted into slots from the side of one end in an axial direction of a stator core and end portions of other-side conductor segments are connected to each other through coupling members inside the slots. The method includes: pressing in the one-side conductor segment or the other-side conductor segment in an insertion direction in a state where the end portion of the one-side conductor segment or the end portion of the other-side conductor segment, or an end portion of the coupling member has been moved toward the inner circumferential side of the stator core; connecting the end portion of the one-side conductor segment and the end portion of the other-side conductor segment to each other; and executing the pressing in and the connecting sequentially from the outer circumferential side of the stator core.

公开(公告)号：US11557931B2

公开(公告)日：2023-01-17

申请号：US16905226

申请日：2020-06-18

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yasushi Nishikuma

IPC分类号： H02K3/12 ,  H02K15/085 ,  H02K3/14 ,  B21D11/20 ,  H02K1/16 ,  H02K3/48 ,  H02K15/00

摘要： A stator for a rotary electric machine includes a stator coil configured such that a tip end of a conductor segment bent in a stator circumferential direction is joined to a tip end of another conductor segment in the same phase. A conductive material is exposed from the tip ends of the conductor segments, and a distance between the tip ends in different phases and adjacent to each other in the stator circumferential direction is larger than a distance between the tip ends in the same phase and adjacent to each other in the stator circumferential direction.

公开(公告)号：US11223259B2

公开(公告)日：2022-01-11

申请号：US16192116

申请日：2018-11-15

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

发明人： Masashi Kawai ,  Yasushi Nishikuma ,  Hiroaki Takeda

IPC分类号： H01F7/06 ,  H02K15/00 ,  H02K15/10 ,  H02K15/12 ,  H02K5/08 ,  H02K1/04 ,  H02K15/02

摘要： To effectively cover a coil end with a resin layer. A method for manufacturing a stator includes a first resin layer forming step (ii) of forming a first thermoset resin layer by impregnating the tip end side of a coil end with first thermoset resin, the coil end protruding from the core of the stator, the first thermoset resin having liquidity; a second resin layer forming step (iii) of forming a second thermoset resin layer on the first thermoset resin layer by dropping second thermoset resin from the core side of the coil end toward the tip end side; and a curing step of curing the first thermoset resin and the second thermoset resin.