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公开(公告)号：US20180022224A1
公开(公告)日：2018-01-25
申请号：US15657871
申请日：2017-07-24
Applicant: DENSO CORPORATION
Inventor： Keiji KONDO , Makoto TANIGUCHI , Asaka KIMURA
CPC classification number: B60L11/1814 , B60L50/10 , B60L53/24 , B60W20/13 , B60W30/18127 , H02J7/0068 , H02J7/14 , H02J7/1423 , H02P9/008 , H02P2101/45 , Y02T10/7258 , Y10S903/93
Abstract: In an onboard charging apparatus, a plurality of main electric-power storage apparatuses are connected in series to one another. A main electric-power storage apparatus on a lowest potential side of the main electric-power storage apparatuses is a lowest potential electric-power storage apparatus. The lowest potential electric-power storage apparatus has a nominal voltage that is set to 12 V, and supplies electric power to an electrical component mounted to a vehicle. In the onboard charging apparatus, a connecting unit selectively connects, by switching control, the output terminal and any of high potential side terminals of the main electric-power storage apparatuses. A switching control unit controls switching of the connecting unit to switch the high potential side terminal selected as a connection destination of the output terminal among the high potential side terminals of the main electric-power storage apparatuses, based on an output voltage of the output terminal.
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公开(公告)号：US20200052638A1
公开(公告)日：2020-02-13
申请号：US16598753
申请日：2019-10-10
Applicant: DENSO CORPORATION
Inventor： Hirofumi KINJO , Toru WAKIMOTO , Makoto TANIGUCHI , Keiji KONDO , Jun ISHIDA , Tomoya TAKAHASHI
Abstract: In a rotary electric machine, a rotor, and a stator. The stator includes slots provided in a circumferential direction thereof, and stator windings wound in the slots. The stator windings include n groups of three-phase windings, where n is a power of 2. The slots include first slots each accommodating portions of same-group and same-phase windings in the n groups of three-phase windings. The energizing directions of the same-group and same-phase windings are identical to each other. The second slots each accommodate different-group and same-phase windings in the n groups of three-phase windings. The first slots and the second slots are arranged in the stator at predetermined intervals in a circumferential direction of the stator, and the three-phase windings of each group are wound around the stator with regular intervals therebetween.
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Patent Agency Ranking
公开(公告)号：US20230283149A1
公开(公告)日：2023-09-07
申请号：US18113468
申请日：2023-02-23
Applicant: DENSO CORPORATION , AISIN CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Keiji KONDO , Tatsuya FUJITA , Junichi SUGAWARA , Yoshihiro TAKAHARA
Abstract: A stator for a rotating electrical machine includes a stator core, a stator winding disposed on or in the stator core, and an annular resinous seal which covers an axial end portion of a coil end of the stator winding. The resinous seal has an inner circumferential surface which is shaped to have a first inner diameter close to the stator core and a second inner diameter farther away from the stator core. The first inner diameter is selected to be smaller than the second inner diameter. This ensures the stability of electrical insulation of the stator winding.
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公开(公告)号：US20180019687A1
公开(公告)日：2018-01-18
申请号：US15651047
申请日：2017-07-17
Applicant: DENSO CORPORATION
Inventor： Makoto TANIGUCHI , Asaka KIMURA , Keiji KONDO
IPC: H02M7/5387 , H02P27/06
CPC classification number: H02M7/5387 , H02P23/0027 , H02P27/06
Abstract: A rotating electric machine system includes a rotating electric machine and an electric power conversion circuit. The rotating electric machine includes N coils connected with each other to define a neutral point therebetween. The electric power conversion circuit includes N high-side switches, N low-side switches, a selector switch, a full-wave driver, a half-wave driver and a drive controller. The full-wave driver performs a full-wave drive process with high potential-side terminals of the low-side switches respectively connected with low potential-side terminals of the high-side switches by the selector switch. The half-wave driver performs a half-wave drive process with the high potential-side terminals of the low-side switches connected with the neutral point by the selector switch. The drive controller controls both the full-wave driver and the half-wave driver to selectively cause either the full-wave driver to perform the full-wave drive process or the half-wave driver to perform the half-wave drive process.
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公开(公告)号：US20240128808A1
公开(公告)日：2024-04-18
申请号：US18378820
申请日：2023-10-11
Applicant: DENSO CORPORATION , DENSO PRESSTECH CO., LTD.
Inventor： Keiji KONDO , Yuichi KUDOSE , Hirotaka KUROZAKI , Masaki OHIRA , Ryosuke MATSUMOTO , Shinji TAKESHITA , Takashi KURAMITSU , Tomohiro HASHIMOTO , Koji YOSHIDA , Katsuhiko GOTO
IPC: H02K1/16
CPC classification number: H02K1/16
Abstract: A stator for a rotating electric machine includes a stator core and a stator coil. The stator core is formed of a band-shaped steel sheet that is helically bent and laminated. The stator core has slots each opening at an inner periphery of the stator core and spaced from one another in a circumferential direction. The stator coil is formed of electrical conductor segments that are inserted in the slots of the stator core and connected with one another. The band-shaped steel sheet has slits each of which is formed, at a position corresponding to one of the slots, to be open to the corresponding slot. Each of the electrical conductor segments is substantially U-shaped and has a pair of leg portions respectively inserted in corresponding two of the slots of the stator core; the corresponding two slots are circumferentially apart from each other by two or more slot-pitches.
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公开(公告)号：US20240120780A1
公开(公告)日：2024-04-11
申请号：US18483374
申请日：2023-10-09
Applicant: DENSO CORPORATION
Inventor： Keiji KONDO , Toshihiro TAKEI , Atsushi UMEDA , Hirotaka KUROZAKI
Abstract: A rotary electric machine includes a rotor core and a stator core. The rotor core includes a steel plate laminated in an axial direction of a rotation shaft of a rotor. The stator core is provided outside an outer periphery of the rotor core and includes a steel plate laminated in the axial direction. An average plate thickness of the steel plate of the stator core is smaller than an average plate thickness of the steel plate of the rotor core. In the steel plate of the stator core, a plate thickness of a portion between a predetermined position and a radially outer edge in a radial direction around the rotation axis is smaller than a plate thickness of a portion between the predetermined position and a radially inner edge in the radial direction.
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公开(公告)号：US20190238073A1
公开(公告)日：2019-08-01
申请号：US16317974
申请日：2017-07-13
Applicant: DENSO CORPORATION
Inventor： Asaka KIMURA , Makoto TANIGUCHI , Keiji KONDO
CPC classification number: H02P6/10 , H02K3/28 , H02P6/153 , H02P25/18 , H02P25/22 , H02P27/06 , H02P2207/055 , H02P2209/01
Abstract: A rotating electric machine apparatus includes a rotating electric machine and a full-bridge inverter. The full-bridge inverter includes first high-side switches, first low-side switches, second high-side switches, and second low-side switches. The rotating electric machine apparatus includes: first and second neutral point switches; a full-wave driving unit that performs a full-wave driving process in which switching control of the switches is performed in a state in which the first and second neutral point switches are turned off; a half-wave driving unit that performs a half-wave driving process in which switching control of the first high-side switches and the second low-side switches is performed in a state in which the first and second neutral point switches are turned on, and the first low-side switches and the second high-side switches are turned off; and an executing unit that selects and performs either of the full-wave driving process and the half-wave driving process.
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