公开(公告)号：US20220216736A1

公开(公告)日：2022-07-07

申请号：US17429646

申请日：2020-03-02

申请人： OMRON Corporation

发明人： Kenichi TABATA ,  Goro NAKAO ,  Yusuke KAWAI ,  Atsushi NOMURA ,  Masanobu NAKAJO ,  Takahiro TAKEYAMA

IPC分类号： H02J50/70 ,  H02J50/12

摘要： A power transfer device includes a power transfer coil that transfers power to another device in a non-contact manner, a power transmission and reception circuit that supplies power to the power transfer coil or outputs power received by the power transfer coil to a load circuit, and a protection coil disposed between the power transfer coil and the power transmission and reception circuit to prevent a magnetic flux generated by the power transfer coil from reaching the power transmission and reception circuit. The protection coil includes an air-core coil formed of a wiring pattern of a conductor provided on a board disposed between the power transfer coil and the power transmission and reception circuit, and at least one core coil connected in series to the air-core coil.

公开(公告)号：US20230182606A1

公开(公告)日：2023-06-15

申请号：US17990736

申请日：2022-11-21

申请人： OMRON Corporation

发明人： Katsumi MATSUSHITA ,  Hiroyuki MINO ,  Atsushi NOMURA ,  Ryoji OKAZAKI ,  Kenichi TABATA ,  Daiki ANDO

IPC分类号： B60L53/65 ,  B60L53/66 ,  B60L53/12

CPC分类号： B60L53/65 ,  B60L53/66 ,  B60L53/12

摘要： A system for charging an electric vehicle including a battery includes a charging station, a management computer, and a charging controller. The charging station includes a power transmission device that supplies electric power to the electric vehicle. The management computer stores multiple charging profiles for different battery types. The charging controller is mounted on the electric vehicle and controls charging of the battery with the electric power from the power transmission device. The charging controller stores identification information about the battery. The charging controller transmits the identification information to the management computer. The charging controller acquires the charging profile corresponding to the identification information from the management computer. The charging controller controls charging of the battery according to the charging profile.

公开(公告)号：US20230182610A1

公开(公告)日：2023-06-15

申请号：US17990740

申请日：2022-11-21

申请人： OMRON Corporation

发明人： Katsumi MATSUSHITA ,  Hiroyuki MINO ,  Atsushi NOMURA ,  Ryoji OKAZAKI ,  Kenichi TABATA ,  Daiki ANDO

IPC分类号： B60L53/66 ,  H02J50/12 ,  H02J7/00 ,  B60L53/12

CPC分类号： B60L53/665 ,  H02J50/12 ,  H02J7/00712 ,  B60L53/12

摘要： A system for charging an electric vehicle including a battery includes a management computer and a charging station. The management computer stores multiple charging profiles for different battery types. The charging station includes a power transmission device and a charging controller. The power transmission device supplies electric power to the electric vehicle. The charging controller controls charging of the battery with the electric power from the power transmission device. The charging controller stores identification information about the battery. The charging controller transmits the identification information to the management computer. The charging controller acquires the charging profile corresponding to the identification information from the management computer. The charging controller controls charging of the battery according to the charging profile.

公开(公告)号：US20220085650A1

公开(公告)日：2022-03-17

申请号：US17416546

申请日：2019-12-03

申请人： OMRON Corporation

发明人： Atsushi NOMURA ,  Goro NAKAO ,  Yusuke KAWAI ,  Masanobu NAKAJO ,  Takahiro TAKEYAMA ,  Kenichi TABATA

IPC分类号： H02J50/12 ,  H04B5/00 ,  H02J50/00

摘要： A measured value of an output voltage may be obtained by rectifying power received through a resonance circuit including a reception coil that receives power from a transmission coil of a power transmission device and a resonance capacitor connected in series with the reception coil. When the measured value becomes equal to or larger than an upper limit threshold value, a power reception device of a non-contact power supply device short-circuits a resonance suppression coil provided so as to be electromagnetically couplable with the reception coil. The power transmission device and the power reception device are provided such that power is transmitted from the transmission coil to the reception coil, and the reception coil and the resonance suppression coil are provided such that a coupling degree between the resonance suppression coil and the transmission coil becomes higher than a coupling degree between the reception coil and the transmission coil.

公开(公告)号：US20210344229A1

公开(公告)日：2021-11-04

申请号：US17286501

申请日：2019-10-18

申请人： OMRON Corporation

发明人： Goro NAKAO ,  Kenichi TABATA ,  Yusuke KAWAI ,  Atsushi NOMURA ,  Takahiro TAKEYAMA ,  Masanobu NAKAJO

IPC分类号： H02J50/12 ,  H02J50/40 ,  H02J50/80

摘要： A power reception device of a non-contact power feeding device has: a resonant circuit having a reception coil configured to receive electric power from a power transmission device and a resonant capacitor connected in series with the reception coil; a first rectifier circuit configured to rectify electric power received via the resonant circuit; a smoothing capacitor connected to the first rectifier circuit and configured to smooth a voltage outputted from the first rectifier circuit; a sub-coil arranged to be capable of being electromagnetically coupled to the reception coil; and a second rectifier circuit connected between the sub-coil and the smoothing capacitor, and configured to output electric power according to a voltage generated in the sub-coil to the smoothing capacitor in response to a voltage obtained by rectifying a voltage generated in the sub-coil being higher than a voltage between both terminals of the smoothing capacitor.

公开(公告)号：US20220123592A1

公开(公告)日：2022-04-21

申请号：US17286566

申请日：2019-10-16

申请人： OMRON Corporation

发明人： Goro NAKAO ,  Yusuke KAWAI ,  Kenichi TABATA ,  Atsushi NOMURA ,  Takahiro TAKEYAMA ,  Masanobu NAKAJO

IPC分类号： H02J50/12 ,  H04B5/00

摘要： A power transmission device of a non-contact power feeding device according one or more embodiments may include a control circuit configured to control at least one of a switching frequency or a voltage of AC power supplied from a power supply circuit to a transmission coil, on the basis of a change over time in a strength of a magnetic field detected by a magnetic field detection element configured to detect a strength of a magnetic field generated from the transmission coil of the power transmission device. Whereas, a power reception device has a resonant circuit having a reception coil configured to receive electric power from the power transmission device and a resonance suppression coil arranged to be capable of being electromagnetically coupled to the reception coil.

公开(公告)号：US20210099018A1

公开(公告)日：2021-04-01

申请号：US16994713

申请日：2020-08-17

申请人： OMRON Corporation

发明人： Kenichi TABATA

IPC分类号： H02J50/12 ,  H04B5/00 ,  H01F38/14

摘要： A non-contact power feeding apparatus may suppress a variation in power transmission efficiency due to a change in the positional relationship between a power transmission side and a power reception side of an apparatus. A power transmission apparatus of a non-contact power feeding apparatus may include a transmission coil that transmits AC power to a power reception apparatus in a non-contact manner, and a power supply circuit that supplies AC power to the transmission coil. The power reception apparatus may include a reception coil that receives AC power from the transmission coil. The transmission coil and the reception coil may be formed such that the size of one of the transmission coil and the reception coil in a plane orthogonal to a winding axis thereof is larger than the size of the other of the transmission coil and the reception coil in a plane orthogonal to a winding axis thereof.

公开(公告)号：US20240178654A1

公开(公告)日：2024-05-30

申请号：US18491058

申请日：2023-10-20

申请人： OMRON CORPORATION

发明人： Kenichi TABATA ,  Daiki ANDO ,  Hidetoshi YUGEN

IPC分类号： H02H5/04 ,  G01R31/327

CPC分类号： H02H5/04 ,  G01R31/3278 ,  H02J3/14

摘要： A power cutoff device (20) comprises a power relay (21), a temperature calculation unit (22a), and a determination unit (22b). The power relay (21) includes a drive coil (21a). The temperature calculation unit (22a) calculates the temperature of the drive coil (21a) by calculating the resistance value of a resistor that changes with temperature when the drive coil (21a) included in the power relay (21) is regarded as a resistor. The determination unit (22b) determines whether or not to cut off the power supply on the basis of the temperature of the drive coil (21a) calculated by the temperature calculation unit (22a).

公开(公告)号：US20230187983A1

公开(公告)日：2023-06-15

申请号：US18058060

申请日：2022-11-22

申请人： OMRON Corporation

发明人： Goro NAKAO ,  Hiroaki OTA ,  Yuki ITO ,  Kenichi TABATA ,  Atsushi NOMURA ,  Daiki ANDO ,  Ken ONOZAKA ,  Yusuke KAWAI ,  Mitsunori SUGIURA

IPC分类号： H02J50/80 ,  H02J50/12

CPC分类号： H02J50/80 ,  H02J50/12

摘要： A power transmitting apparatus included in the contactless power feeding apparatus includes a power supply circuit that supplies AC power having a predetermined drive frequency to a transmission coil for supplying power to a power receiving apparatus, a first coil and a first capacitor that are connected between the power supply circuit and the transmission coil, a second capacitor that is connected at first end to the first capacitor and is connected at a second end to the second end of the transmission coil, and a control circuit. Also, the power receiving apparatus includes a receiver coil for receiving power, and a resonant circuit that includes a resonance capacitor that resonates together with the receiver coil. Also, the control circuit of the power transmitting apparatus controls the power supply circuit such that the predetermined drive frequency falls within a predetermined frequency range including a resonance frequency of the resonant circuit.

公开(公告)号：US20230147563A1

公开(公告)日：2023-05-11

申请号：US18048868

申请日：2022-10-24

申请人： OMRON Corporation

发明人： Katsumi MATSUSHITA ,  Hiroyuki MINO ,  Atsushi NOMURA ,  Kenichi TABATA ,  Daiki ANDO

IPC分类号： H02J50/90 ,  H02J50/10 ,  H02J50/80 ,  B60L53/12 ,  B60L53/31 ,  B60L53/66

CPC分类号： H02J50/90 ,  H02J50/10 ,  H02J50/80 ,  B60L53/12 ,  B60L53/31 ,  B60L53/66

摘要： A power feeding station according to one or more embodiments may include a feeder including a feeder coil that feeds power to a receiver in an electric mobility vehicle, a power supply circuit that supplies AC power to the feeder coil, and a control circuit that controls a frequency and a voltage of the AC power. The control circuit provides, through a notification source a notification of guidance about a stop position of the electric mobility vehicle relative to a housing to increase power transmission efficiency from the feeder to the receiver in accordance with the frequency of the AC power supplied to the feeder coil with which the receiver outputs a constant voltage or in accordance with the voltage of the AC power supplied to the feeder coil with which the receiver outputs a constant and predetermined voltage.