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公开(公告)号：US09960678B2
公开(公告)日：2018-05-01
申请号：US15628769
申请日：2017-06-21
CPC分类号： H02M3/156 , H02M3/07 , H02M3/1582 , H02M2001/0058 , H02M2001/344 , H02M2003/1555 , H02M2003/1566
摘要： In a power converter, a first electrical path connects between the series resonant circuit and a selected terminal from the high- and low-side input and output terminals of the power converter. An auxiliary diode is provided on one of the series resonant circuit and the first electrical path. An auxiliary switch, when turned on, causes an inductor current to flow through the auxiliary diode to the resonance inductor, thus storing electromagnetic energy into the resonance inductor, and causes the resonance inductor and the capacitance component of the series resonant circuit to resonate with each other. A second electrical path bypasses the auxiliary switch for flow of the inductor current. A discharge unit is provided on the second electrical path. The discharge unit is activated to discharge the electromagnetic energy stored in the resonance inductor via the second electrical path.
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公开(公告)号：US10279691B2
公开(公告)日：2019-05-07
申请号：US14390906
申请日：2013-04-04
申请人： DENSO CORPORATION
IPC分类号： H02J7/00 , H02J7/02 , H01F27/38 , H01F27/40 , H01F38/14 , H02J50/12 , H02J50/40 , H02J50/60 , H02J50/80 , B60L11/18
摘要： A contactless feeding pad includes a power-receiving side pad, a power-transmitting side pad, and an auxiliary pad. The power-transmitting side pad is different from the power-receiving side pad in size or shape and transmits electric power contactlessly to the power-receiving side pad while being situated oppositely to the power-receiving side pad. The auxiliary pad is installed between the power-transmitting side pad and the power-receiving side pad in close proximity to the power-transmitting side pad or the power-receiving side pad and forms a resonance circuit.
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公开(公告)号：US11926227B2
公开(公告)日：2024-03-12
申请号：US17528718
申请日：2021-11-17
申请人： DENSO CORPORATION
发明人： Kouji Mazaki , Nobuhisa Yamaguchi , Eisuke Takahashi , Mitsuru Shibanuma , Shinpei Takita , Masaya Takahashi , Hayato Sumiya , Masaki Kanesaki , Takuya Kiguchi , Kazuhiro Uda , Yuusei Nakayashiki
摘要： In a moving-object power supply system, a control unit selects, as a power transmission segment, one of segments included in at least one power transmission section. The control unit supplies, through a power supply circuit, power to the power transmission segment to thereby generate a magnetic field through a power transmission coil of the power transmission segment. The control unit determines, based on an ascertained first electrical characteristic of the power transmission segment and an ascertained second electrical characteristic of at least one power non-transmission segment, whether there is a malfunction in each of the power transmission segment and the at least one power non-transmission segment.
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公开(公告)号：US11888326B2
公开(公告)日：2024-01-30
申请号：US17503953
申请日：2021-10-18
申请人： DENSO CORPORATION
发明人： Masaya Takahashi , Yuusei Nakayashiki , Eisuke Takahashi , Masaki Kanesaki , Kazuhiro Uda , Nobuhisa Yamaguchi
IPC分类号： H02J50/12 , H02J50/90 , B60L53/122 , H02M1/12
CPC分类号： H02J50/12 , B60L53/122 , H02J50/90 , H02M1/12
摘要： A contactless power supply device that supplies electric power to a vehicle in a contactless manner, includes: a power transmission resonance circuit; a power source circuit supplying direct-current power; and a power transmission circuit converting the direct-current power of the power source circuit into alternating-current power and supplying alternating-current power to the power transmission resonance circuit. The power transmission circuit includes: an inverter circuit converting the direct-current power of the power source circuit into alternating-current power; and a power transmission-side immittance conversion circuit adjusting the alternating-current power of the inverter circuit and supplies the adjusted alternating-current power to the power transmission resonance circuit. The ratio of a characteristic impedance of the power transmission-side immittance conversion circuit to an impedance backward on the power transmission resonance circuit side from the power transmission-side immittance conversion circuit is adjusted such that harmonic components in the alternating-current power of the inverter circuit becomes lessened.
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公开(公告)号：US20150061585A1
公开(公告)日：2015-03-05
申请号：US14390906
申请日：2013-04-04
申请人： DENSO CORPORATION
IPC分类号： B60L11/18
CPC分类号： B60L11/182 , H01F27/38 , H01F27/40 , H01F38/14 , H02J7/025 , H02J50/12 , H02J50/40 , H02J50/60 , H02J50/80 , H02J2007/0096 , Y02T10/7005 , Y02T10/7072 , Y02T90/122 , Y02T90/14
摘要： A contactless feeding pad includes a power-receiving side pad, a power-transmitting side pad, and an auxiliary pad. The power-transmitting side pad is different from the power-receiving side pad in size or shape and transmits electric power contactlessly to the power-receiving side pad while being situated oppositely to the power-receiving side pad. The auxiliary pad is installed between the power-transmitting side pad and the power-receiving side pad in close proximity to the power-transmitting side pad or the power-receiving side pad and forms a resonance circuit.
摘要翻译： 非接触供电焊盘包括受电侧焊盘，电力传输侧焊盘和辅助焊盘。 电力传输侧焊盘的尺寸或形状与受电侧焊盘不同，并且在与受电侧焊盘相对的位置处将电力非接触地传送到受电侧焊盘。 辅助垫安装在电力传输侧焊盘和受电侧焊盘之间，靠近电力传输侧焊盘或受电侧焊盘，并形成谐振电路。
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公开(公告)号：US12115872B2
公开(公告)日：2024-10-15
申请号：US17134636
申请日：2020-12-28
申请人： DENSO CORPORATION
发明人： Eisuke Takahashi , Nobuhisa Yamaguchi , Koji Mazaki , Shimpei Takita , Hayato Sumiya , Masaki Kanesaki , Takuya Kiguchi , Kazuhiro Uda , Mitsuru Shibanuma , Kazuyoshi Obayashi , Tomoyuki Fujikawa , Masaya Takahashi , Yusei Nakayashiki
CPC分类号： B60L53/122 , B60L9/00 , B60L53/12 , B60L53/39 , H01F38/14 , H02J50/12 , H02J50/402
摘要： A contactless power supply system is provided for supplying electric power to a vehicle in a contactless manner during traveling of the vehicle. The contactless power supply system includes a plurality of primary coils installed along a traveling direction in a road and a secondary coil mounted to the vehicle. Each of the primary coils is a single-phase coil with the secondary coil being a multi-phase coil, or is a multi-phase coil with the secondary coil being a single-phase coil.
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公开(公告)号：US12095287B2
公开(公告)日：2024-09-17
申请号：US17460479
申请日：2021-08-30
申请人： DENSO CORPORATION
发明人： Takuya Kiguchi , Nobuhisa Yamaguchi , Eisuke Takahashi , Hayato Sumiya , Tomoyuki Fujikawa , Koji Mazaki , Shimpei Takita , Masaki Kanesaki , Masaya Takahashi , Kazuhiro Uda , Yusei Nakayashiki , Mitsuru Shibanuma , Kazuyoshi Obayashi
CPC分类号： H02J50/402 , B60L5/42 , E01F11/00 , H01F27/245 , H01F27/363 , H02J50/10 , H02J2310/48
摘要： A dynamic wireless power transfer system performs, through a plurality of primary coils installed along a traveling direction of a road and a secondary coil mounted in a vehicle, power transfer to the vehicle while the vehicle is traveling. The secondary coil is an M-phase coil including M coils, M denoting an integer which is two or higher. The M coils each include a coil end extending along a front-rear direction of the vehicle and a main coil portion extending along a width direction of the vehicle, the M coils each being configured such that a magnetic resistance of a magnetic path where a magnetic flux of the coil end passes is higher than a magnetic resistance of a magnetic path where a magnetic flux of the main coil portion passes.
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公开(公告)号：US11850952B2
公开(公告)日：2023-12-26
申请号：US17476073
申请日：2021-09-15
申请人： DENSO CORPORATION
摘要： A system for power feeding during traveling includes a coil for power transmission, a power supply unit which supplies power to the coils, at least one shielding member which shields an electromagnetic field of the coil, and a hole provided to the shielding members.
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公开(公告)号：US09841524B2
公开(公告)日：2017-12-12
申请号：US14758078
申请日：2013-12-12
申请人： DENSO CORPORATION
摘要： A metal object detection device includes a plurality of detection coils, a capacitor configuring a resonant circuit in cooperation with each of at least two of the detection coils, a first series connection body, a second series connection body, a voltage applying unit, and a processing unit. The voltage applying unit applies an AC voltage to both ends of each of the first series connection body and the second series connection body. The processing unit performs a process for detecting the metal object on the basis of a potential difference between a connection point included in the first series connection body and a connection point included in the second series connection body.
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公开(公告)号：US20150076918A1
公开(公告)日：2015-03-19
申请号：US14389591
申请日：2013-03-20
申请人： DENSO CORPORATION
CPC分类号： H02J50/00 , B60L1/003 , B60L11/182 , B60L11/1824 , B60L11/1829 , B60L11/1833 , B60L11/1838 , B60L11/1868 , B60L2210/10 , B60L2210/30 , B60L2210/40 , B60M7/003 , H01F27/28 , H01F38/14 , H01F2027/348 , H02J5/005 , H02J7/02 , H02J7/025 , H02J17/00 , H02J50/10 , Y02T10/7005 , Y02T10/7066 , Y02T10/7072 , Y02T10/7216 , Y02T10/7241 , Y02T90/121 , Y02T90/122 , Y02T90/125 , Y02T90/127 , Y02T90/128 , Y02T90/14 , Y02T90/163
摘要： A contactless power supply device includes a power-transmitting-side pad and a power-receiving-side pad. Each of the power-transmitting-side pad and the power-receiving-side pad has a core and a coil. The core has a plate-shaped yoke portion. The coil has a first coil portion and a second coil portion. The first coil portion is arranged on a top surface of the yoke portion. The second coil portion is arranged along an outer periphery of the yoke portion.
摘要翻译： 非接触电源装置包括电力传输侧焊盘和受电侧焊盘。 动力传递侧衬垫和受电侧衬垫中的每一个具有芯和线圈。 芯具有板状轭部。 线圈具有第一线圈部分和第二线圈部分。 第一线圈部分布置在轭部的顶表面上。 第二线圈部沿着轭部的外周配置。
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