CONTACTLESS POWER SUPPLY SYSTEM AND POWER RECEIVING DEVICE

    公开(公告)号:EP3121933A4

    公开(公告)日:2017-11-22

    申请号:EP15789408

    申请日:2015-04-30

    申请人: IHI CORP

    IPC分类号: H02J50/00

    摘要: A wireless power supply system (100) includes a power transmitter (101) and a power receiver (103). The power transmitter includes a power-transmitting coil (113) to which AC power of a frequency is input from a power source (111). The power receiver includes a power-receiving coil (121) magnetically coupled to the power-transmitting coil at a coupling coefficient, and a first power-receiving-side series element (123) coupled in series to the power-receiving coil and having imaginary impedance jZ S2i . In this wireless power supply system, the frequency and the imaginary impedance are determined so that impedance of a power-receiving side seen from the power source is independent of the coupling coefficient when the coupling coefficient changes.

    POWER RECEPTION COIL DEVICE AND CONTACTLESS POWER SUPPLY SYSTEM

    公开(公告)号:EP3206281A4

    公开(公告)日:2018-05-30

    申请号:EP15849049

    申请日:2015-04-30

    申请人: IHI CORP

    IPC分类号: H02J50/00 H01F27/36 H01F38/14

    摘要: A power reception coil device is a power reception coil device attached to a movable body, for wirelessly receiving power from a power transmission coil device, and includes a power reception coil portion including a conductive wire, and a nonmagnetic body disposed between the movable body and the power reception coil portion. The nonmagnetic body includes a first overhang protruding in a first direction outwardly from one end portion of a region onto which the power reception coil portion is projected in a second direction. The first direction is orthogonal to the second direction in which the power reception coil device opposes the power transmission coil device. The first overhang is longer than or equal to a maximum permissible misalignment permissible between the power reception coil portion and a power transmission coil portion of the power transmission coil device.

    CONTACTLESS POWER SUPPLY SYSTEM
    8.
    发明公开

    公开(公告)号:EP3229343A4

    公开(公告)日:2018-05-02

    申请号:EP15881209

    申请日:2015-12-11

    申请人: IHI CORP

    摘要: A wireless power-supplying system (100) according to the present disclosure includes a power-transmitting device (101) and a power-receiving device (103), in which the power-transmitting device includes a power-transmitting coil (113) to which AC power of a certain frequency is input from a power supply (111) and a controller which controls a frequency, the power-receiving device includes a power-receiving coil (121) magnetically coupled with the power-transmitting coil with a certain coupling coefficient and a power-receiving side series element (123) connected to the power-receiving coil in series and having imaginary impedance jZ S2i , the imaginary impedance is defined so that impedance when a power-receiving side is seen from the power supply is independent of the coupling coefficient when the frequency and the coupling coefficient are predetermined values, and the controller changes the frequency according to at least one of power-transmitting status information of the power-transmitting device and power-receiving status information of the power-receiving device when the coupling coefficient changes.