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公开(公告)号：EP4331899A1
公开(公告)日：2024-03-06
申请号：EP23189959.2
申请日：2023-08-07
发明人： CHENG, Dong , HU, Minggui
IPC分类号： B60L53/00
摘要： This application provides a charging pile, an electric device, a charging system, and a battery pack heating method, which may be applied to a new energy vehicle. The charging pile includes a power unit and a charging gun. The charging gun is configured to connect the power unit and the electric device. The charging pile is configured to: receive a first message from the electric device, where the first message carries a first current value required for heating a battery pack of the electric device; and control the power unit to charge and discharge the battery pack based on the first current value. A second current value output when the power unit heats the battery pack is not greater than the first current value. Based on the foregoing solution, a current may be controlled to repeatedly flow into and out of the battery pack. Because the battery pack has internal resistance, heat is generated when the current flows into and out of the battery pack. The heat may cause the battery pack to be heated to reach an appropriate operating temperature. In addition, the battery pack is heated by using the charging pile, and a structure of the electric device does not need to be changed, thereby reducing costs.
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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
发明人： CHENG, Dong , LIAO, Mengxiong
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.
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