公开(公告)号：US20200099266A1

公开(公告)日：2020-03-26

申请号：US16516678

申请日：2019-07-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Yasuyuki HIRAO ,  Daisuke MIZUSHIMA ,  Hiroaki TAKEDA ,  Sho YASUDA

IPC: H02K3/12 ,  H02K15/085 ,  H02K15/00 ,  H02K15/04

Abstract: Provided is a stator manufacturing method including: inserting a plurality of segment coils into a plurality of slots formed in a stator core; bending arms of the segment coils that protrude from the stator core, in a circumferential direction of the stator core; before or after bending the segment coils in the circumferential direction, directing parallel to each other leading end portions of the segment coils that are adjacent to each other in a radial direction of the stator core; and welding together the leading end portions of the segment coils with the leading end portions directed parallel to each other.

公开(公告)号：US20200091800A1

公开(公告)日：2020-03-19

申请号：US16566256

申请日：2019-09-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Yuiki GOTO ,  Daisuke MIZUSHIMA ,  Yasuyuki HIRAO ,  Hiroaki TAKEDA ,  Sho YASUDA

IPC: H02K15/00 ,  B21K23/00

Abstract: A bending-forming jig used in bending and forming a protruding portion of a leg portion of a U-shaped conductor toward a circumferential direction, the protruding portion protruding from an axial end surface of a stator core, the bending-forming jig including a ring portion and a claw portion, the claw portion including a first abutting surface that rises from an axial end surface of the ring portion with the surface directed in the circumferential direction and abuts against a tip portion of the protruding portion from the circumferential direction, and a projecting portion that projects, at a tip end of the claw portion, in the circumferential direction from the abutting surface and abuts against the tip portion of the protruding portion from the axial direction toward the axial end surface of the ring portion.

公开(公告)号：US20190312494A1

公开(公告)日：2019-10-10

申请号：US16369391

申请日：2019-03-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Daisuke MIZUSHIMA ,  Yasuyuki HIRAO ,  Hiroaki TAKEDA

IPC: H02K15/00

Abstract: A method of producing a rotating electric machine stator includes an insertion step, bending step, and pressing step. In the insertion step, two leg portions of each U-shaped coil wire of a stator coil are inserted into different slots, such that protruding portions as distal end portions of the leg portions protrude in parallel with an axial direction of the stator core. In the bending step, the protruding portion of a first leg portion is bent in a first circumferential direction of the stator core, at a proximal end portion of the protruding portion as a bending start point, from a condition where the protruding portion protrudes from the slot in parallel with the axial direction of the stator core. In the pressing step, a distal end of the protruding portion bent in the first circumferential direction is pressed toward its proximal end in a second circumferential direction.

公开(公告)号：US20160027551A1

公开(公告)日：2016-01-28

申请号：US14800913

申请日：2015-07-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daisuke MIZUSHIMA ,  Hironari ADACHI ,  Hirofumi INOSHITA

IPC: H01B5/00 ,  H01B13/00

CPC classification number: H01B13/0285 ,  B21C37/047 ,  B21F7/00 ,  H01B13/0006

Abstract: The invention provides an assembled conductor, which is formed by rolling a conductor bundle including a central conductor and a peripheral conductor arranged around the central conductor. The central conductor has a shape in which a right-twisted portion of the central conductor and a left-twisted portion of the central conductor are arranged alternately in predetermined intervals. The right-twisted portion of the central conductor extends from one end side of the central conductor to the other end side of the central conductor and is twisted in a clockwise direction, and the left-twisted portion of the central conductor extends from the one end side of the central conductor to the other end side of the central conductor and is twisted in a counterclockwise direction. The peripheral conductor is arranged around the central conductor so that a twist direction of the peripheral conductor becomes opposite to a twist direction of the central conductor.

Abstract translation: 本发明提供了一种组装导体，其通过滚动包括中心导体和布置在中心导体周围的周边导体的导体束而形成。 中心导体具有中心导体的右扭曲部分和中心导体的左扭转部分以预定间隔交替布置的形状。 中心导体的右扭曲部分从中心导体的一端侧延伸到中心导体的另一端，并沿顺时针方向扭转，中心导体的左扭曲部分从一端延伸 侧中心导体的另一端侧，并沿逆时针方向扭转。 周围导体围绕中心导体布置，使周边导体的扭转方向与中心导体的扭转方向相反。