公开(公告)号：US20210083539A1

公开(公告)日：2021-03-18

申请号：US17019464

申请日：2020-09-14

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryosuke MARUYAMA ,  Hiroaki TAKEDA ,  Yasuhiro MAKIDO ,  Toshiro NAKAMURA ,  Ken SHIRAI

IPC: H02K3/12 ,  H02K1/16 ,  H02K3/28 ,  H02K3/34 ,  H02K15/00 ,  H02K15/04 ,  H02K15/085 ,  H02K15/10 ,  B21D28/28

Abstract: A stator has a stator core composed of teeth and slots. Segment coils are inserted into the corresponding slots. The segment coil projecting from the slot has an exposed conductor part and a covered conductor part covered with an electrical insulation film. The exposed conductor part is arranged at the distal end side from the covered conductor part of the segment coil. The segment coils are connected together through the exposed conductor parts thereof projecting from the slots. The exposed conductor part has a thickness T2 thinner than a thickness T1 of the covered conductor part. A step part is formed at a position of the stator core side, adjacent to the exposed conductor part of the segment coil. The step part and the covered conductor part are covered with the electrical insulation film continuously from the stator core side of the covered conductor part.

公开(公告)号：US20190280574A1

公开(公告)日：2019-09-12

申请号：US16286794

申请日：2019-02-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Ken SHIRAI ,  Akihiro UEDA ,  Yasuyuki HIRAO ,  Toshiro NAKAMURA ,  Hiroaki TAKEDA

IPC: H02K15/00 ,  B23K26/082 ,  H02G1/12

Abstract: An insulation film peeling method which radiates laser light onto a front end portion of an insulation film-coated conducting wire including a conducting wire and an insulation film in a longitudinal direction, and which peels a part of the insulation film up to a peeling boundary of a predetermined regulated peeling length, includes performing a rectilinear scan of a first region, in which a radiation position of the laser light moves from one side toward the other side and then moves from the other side toward the one side upon reaching the other side, and performing a unidirectional scan of a second region, in which the radiation of the laser light is performed from one side toward the other side and then the radiation position returns to the one side in a state in which the radiation of the laser light stops upon reaching the other side.

公开(公告)号：US20200343797A1

公开(公告)日：2020-10-29

申请号：US16850435

申请日：2020-04-16

Applicant: DENSO CORPORATION

Inventor： Hiroaki TAKEDA ,  Hiroki FUJITA

IPC: H02K15/04 ,  H02K15/06

Abstract: An aligning apparatus is provided for aligning coil segments in an annular shape to form an aligned coil. Each of the coil segments has a pair of first and second leg portions. The aligning apparatus includes an outer jig and an inner jig. The outer jig has partitioning members arranged in a radial fashion. The partitioning members are spaced at such intervals as to allow each of the first leg portions of the coil segments to be inserted between one circumferentially-adjacent pair of the partitioning members. The inner jig has hole-forming members arranged radially inside the partitioning members of the outer jig. Each of the hole-forming members has formed therein a hole in which one of the second leg portions of the coil segments is to be inserted. Moreover, the hole-forming members are configured to be rotatable relative to the outer jig in a circumferential direction and radially movable.

公开(公告)号：US20150076945A1

公开(公告)日：2015-03-19

申请号：US14491194

申请日：2014-09-19

Applicant: DENSO CORPORATION

Inventor： Takuya KUDOU ,  Hiroaki TAKEDA

IPC: H02K3/28 ,  H02K3/48

CPC classification number: H02K3/28 ,  H02K3/12 ,  H02K3/50

Abstract: A stator includes an annular stator core and a stator coil. The stator core has a plurality of slots formed therein. The stator coil includes first to third phase windings mounted on the stator core and a connection portion located outside the slots of the stator core. The connection portion is formed of a first connection wire connecting the first and second phase windings and a second connection wire connecting the third phase winding to the first connection wire. The first connection wire is arranged so as to extend in the circumferential direction of the stator core. The second connection wire is bent to include a bend and an intersecting part that extends from the bend to the first connection wire so as to intersect the first connection wire. The intersecting part of the second connection wire is joined to the first connection wire with a joint formed therebetween.

Abstract translation: 定子包括环形定子芯和定子线圈。 定子芯具有形成在其中的多个槽。 定子线圈包括安装在定子芯上的第一至第三相绕组和位于定子芯的槽外部的连接部分。 连接部分由连接第一和第二相绕组的第一连接线和将第三相绕组连接到第一连接线的第二连接线形成。 第一连接线被布置成在定子​​芯的圆周方向上延伸。 第二连接线被弯曲以包括弯曲部和从弯曲部延伸到第一连接线的交叉部，以与第一连接线相交。 第二连接线的交叉部分与形成在其间的接头连接到第一连接线。

公开(公告)号：US20190199183A1

公开(公告)日：2019-06-27

申请号：US16226968

申请日：2018-12-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Daisuke MIZUSHIMA ,  Yasuyuki HIRAO ,  Hiroaki TAKEDA

IPC: H02K15/04 ,  H02K15/02 ,  H02K15/10

CPC classification number: H02K15/0428 ,  H02K15/024 ,  H02K15/10

Abstract: A coil bending machine is a machine that, in a stator core including a yoke and multiple teeth and having a slot formed between circumferentially adjacent teeth, while lead portions of a segment coil which is a U-shaped lead wire including a bent portion K and two lead portions R extending from the bent portion are inserted into two slots, push-bends end portions of the lead portions protruding from an axial end face of the stator core toward the stator core. The coil bending machine includes a coil bending member that push-bends the end portions of the lead portions protruding from the axial end face of the stator core toward the stator core, and a coil pressing mechanism that press-fixes a segment coil inside the slot toward the yoke, from the radially inner side of the stator core.

公开(公告)号：US20170341648A1

公开(公告)日：2017-11-30

申请号：US15534456

申请日：2015-12-01

Applicant: DENSO CORPORATION ,  SOKEN, INC.

Inventor： Norio SANMA ,  Motoki TACHIIRI ,  Syunsuke SHIBATA ,  Akira OKADA ,  Hiroaki TAKEDA ,  Sei IGUCHI

IPC: B60W30/14 ,  B60W50/14 ,  B60W50/10

CPC classification number: B60W30/14 ,  B60N2/0244 ,  B60N3/06 ,  B60N2002/026 ,  B60W50/10 ,  B60W50/14 ,  B60W50/16 ,  B60W2550/00

Abstract: An autonomous driving control apparatus that achieves autonomous driving by controlling a driving operation of a subject vehicle, based on a situation around the subject vehicle is provided. The autonomous driving control apparatus includes: a driving operation determination part that determines a detail of the driving operation of the subject vehicle, based on the situation; a driving operation control part that controls the driving operation in accordance with the detail; and a driving information output part that shifts a footrest portion of a footrest at a seat on a driver seat side of the subject vehicle by driving a driving part provided on the footrest, to output the detail as driving information. The driving information output part varies a frontward inclination angle in accordance with a level of acceleration or deceleration of the subject vehicle, to output the driving information.

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：US20200083787A1

公开(公告)日：2020-03-12

申请号：US16565769

申请日：2019-09-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Tadashi FUJIYOSHI ,  Yasuyuki HIRAO ,  Yoshiki YAMAUCHI ,  Hiroaki TAKEDA ,  Masaya NAKAMURA

IPC: H02K15/00 ,  B23K26/082 ,  B23K26/06 ,  B23K26/22

Abstract: A laser welding method for coil wires includes welding two coil wires by irradiating a laser beam to an upper end edge of butted surfaces of side surfaces of tip end portions of the two coil wires. At this time, a molten pool is formed at the center of a welding portion on the upper end edge by scanning the laser beam in a plurality of continuous loop shapes from one or both welding end portions, and welding is performed to make the molten pool at the center portion of the welding portion greater in welding depth than other molten pools by controlling at least one among a movement pitch, a loop area, a laser scanning speed, and a laser power of loops of the laser beam.

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.