公开(公告)号：US11658532B2

公开(公告)日：2023-05-23

申请号：US17019464

申请日：2020-09-14

申请人： DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Ryosuke Maruyama ,  Hiroaki Takeda ,  Yasuhiro Makido ,  Toshiro Nakamura ,  Ken Shirai

IPC分类号： H02K3/12 ,  H02K1/16 ,  H02K3/28 ,  H02K3/34 ,  H02K15/04 ,  H02K15/085 ,  H02K15/10 ,  H02K15/00 ,  H02K3/14 ,  B21D28/28

CPC分类号： H02K3/12 ,  B21D28/28 ,  H02K1/16 ,  H02K3/14 ,  H02K3/28 ,  H02K3/345 ,  H02K15/0081 ,  H02K15/0421 ,  H02K15/085 ,  H02K15/10

摘要： 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：US11387718B2

公开(公告)日：2022-07-12

申请号：US16580391

申请日：2019-09-24

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

发明人： Ken Shirai ,  Yasuyuki Hirao ,  Masashi Matsumoto ,  Hiroaki Takeda ,  Ryosuke Maruyama

IPC分类号： H02K15/00 ,  H01F41/12 ,  B23K26/16 ,  B23K26/142 ,  B23K26/359 ,  B23K101/38 ,  B23K101/42 ,  H05K1/11 ,  H01F41/10

摘要： A method of removing an insulating coating layer of coil wiring includes: a fragmentation step in which a line-shaped region of the insulating coating layer, which separates a removal-planned portion and a remain-planned portion of the insulating coating layer, is removed; a laser irradiation step in which laser light which transmits through the insulating coating layer but which is absorbed by a coil wiring is irradiated from a side of an outer surface of the removal-planned portion toward a boundary of the coil wiring with the insulating coating layer, to carbonize a boundary portion between the insulating coating layer and the coil wiring of the removal-planned portion by generation of heat of the coil wiring; and a coating turn-over step in which air is blown onto the removal-planned portion to turn over and blow off the removal-planned portion.

公开(公告)号：US11251591B2

公开(公告)日：2022-02-15

申请号：US16286794

申请日：2019-02-27

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

发明人： Ken Shirai ,  Akihiro Ueda ,  Yasuyuki Hirao ,  Toshiro Nakamura ,  Hiroaki Takeda

IPC分类号： B23K26/06 ,  H02K15/00 ,  H02G1/12 ,  B23K26/082 ,  B23K26/362 ,  B23K26/402 ,  B23K26/0622 ,  B23K101/34 ,  B23K103/00 ,  B23K101/38

摘要： 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：US10587129B2

公开(公告)日：2020-03-10

申请号：US15894411

申请日：2018-02-12

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Ken Shirai

IPC分类号： H02J7/00 ,  H02J7/14 ,  B60L58/20 ,  G01R31/3842 ,  B60L58/12 ,  G01R31/3828

摘要： An electric power supply system includes a first battery provided in an electric power supply circuit; a second battery provided in the circuit and electrically connected in parallel to the first battery, the second battery being a lithium-ion battery; an electric load provided in the circuit and electrically connected in parallel to the first battery and the second battery; a switch provided in the circuit, and configured to electrically disconnect the second battery from the circuit when the switch is open; and a control device configured to open the switch when an ignition switch is on and an SOC of the first battery is equal to or higher than a prescribed SOC, and to execute an open-circuit voltage acquisition process that acquires an open-circuit voltage of the second battery after a lapse of a prescribed time from a time when the switch is opened.