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    POWER EXPANSION APPARATUS USED FOR THREE-PHASE LLC CIRCUIT
    3.
    发明公开
    POWER EXPANSION APPARATUS USED FOR THREE-PHASE LLC CIRCUIT 审中-实审

    公开(公告)号：EP4407855A1

    公开(公告)日：2024-07-31

    申请号：EP23875914.6

    申请日：2023-12-04

    申请人： Shenzhen Uugreenpower Co., Ltd

    发明人： GUO, Xiaoliang ,  BAI, Jianguo ,  WAN, Zhenghai ,  DENG, Likuan

    IPC分类号： H02M3/335 ,  H02M3/28 ,  H02J7/00 ,  B60L53/31

    CPC分类号： Y02T10/70 ,  Y02T10/7072 ,  Y02T90/14 ,  Y02B70/10

    摘要： A power expanding apparatus for three-phase LLC circuit is disclosed, which includes a first and a second full-bridge switching network, a first and a second resonant network, a first and a second transformer network, a first and a second rectifying network. A primary side of the first transformer network is connected with an input voltage sequentially through the first resonant network and the first full-bridge switching network, a secondary side of the first transformer network is connected with a load through the first rectifying network; a primary side of the second transformer network is connected with the input voltage sequentially through the second resonant network and the second full-bridge switching network, and a secondary side of the second transformer network is connected with the load through the second rectifying network. The first and second transformer networks respectively include three transformer units. Secondary sides of any two transformer units in the first transformer network are in star-type connection with a secondary side of any one transformer unit in the second transformer network. This apparatus is easy to manufacture and implement at low cost, expands output power by increasing the output power while achieving a wide-range of output, and solves voltage-sharing and current-sharing problems.

    CHARGING GUN, CHARGING SEAT, CHARGING DEVICE, DEVICE TO BE CHARGED, CHARGING SYSTEM, AND CONTROL METHOD
    9.
    发明公开
    CHARGING GUN, CHARGING SEAT, CHARGING DEVICE, DEVICE TO BE CHARGED, CHARGING SYSTEM, AND CONTROL METHOD 审中-实审

    公开(公告)号：EP4349639A1

    公开(公告)日：2024-04-10

    申请号：EP21947616.5

    申请日：2021-06-30

    申请人： Huawei Technologies Co., Ltd.

    发明人： WANG, Deyuan ,  FENG, Hui ,  PAN, Liwen

    IPC分类号： B60L53/31 ,  B60L53/302 ,  H02J7/00 ,  H05K7/20

    摘要： This application provides a charging plug and socket-outlet, charging and to-be-charged apparatuses, a charging system, and a control method. The charging system includes: a charging apparatus and a to-be-charged apparatus. The charging apparatus includes a charging plug and a first cooling system. The charging plug includes a first electrical transmission interface, a first heat conduction output interface, and a first heat conduction input interface. The to-be-charged apparatus includes a battery, a charging socket-outlet, and a second cooling system. The charging socket-outlet includes a second electrical transmission interface, a second heat conduction output interface, and a second heat conduction input interface. When the first electrical transmission interface, the first heat conduction output interface, and the first heat conduction input interface in the charging plug are respectively connected to the second electrical transmission interface, the second heat conduction input interface, and the second heat conduction output interface in the charging socket-outlet, the first cooling system in the charging apparatus and the second cooling system in the to-be-charged apparatus form a heat conduction loop. The solutions of this application can be used to meet a heat dissipation requirement of the battery in the to-be-charged apparatus during super charging.

    OFF-BOARD CHARGER, CHARGING SYSTEM, AND CHARGING STATION
    10.
    发明公开
    OFF-BOARD CHARGER, CHARGING SYSTEM, AND CHARGING STATION 审中-公开

    公开(公告)号：EP4324684A1

    公开(公告)日：2024-02-21

    申请号：EP23188600.3

    申请日：2023-07-31

    申请人： Huawei Digital Power Technologies Co., Ltd.

    发明人： CHENG, Dong ,  LIAO, Mengxiong

    IPC分类号： B60L53/10 ,  B60L53/14 ,  B60L53/31 ,  B60L53/66 ,  H02J7/00

    摘要： This application provides an off-board charger, a charging system, and a charging station. The off-board charger includes a power conversion circuit, a power supply port, a conversion adapter, and a controller. The conversion adapter includes a connection port and an alternating current output port. The controller controls, when the conversion adapter is connected to the power supply port, the power supply port to connect to an alternating current power grid, the power supply port to connect to the connection port, and the alternating current output port to connect to a charging port of a powered device; or controls, when the conversion adapter is disconnected from the power supply port, the power conversion circuit to connect to an alternating current power grid, and the power supply port to connect to the charging port of the powered device. The off-board charger provided in this application implements both alternating current charging and direct current charging. This omits a charging gun cable and reduces costs.