The invention provides a vehicle-mounted charger, a controller, a power assembly and an electric vehicle, which can reduce the heating device redundancy of the electric vehicle and improve the energy utilization efficiency of the electric vehicle. The vehicle-mounted charger comprises a bidirectional DC conversion circuit, a switch module and a heating module. The bidirectional DC conversion circuit comprises a transformer, a first switching circuit and a second switching circuit. The bridge arm midpoint of the two bridge arms of the second switch circuit is used for being connected with the heating module through the switch module. The vehicle-mounted charger operates in a charging mode, and the bidirectional direct current conversion circuit is used for converting the first direct current into the second direct current to charge the power battery. When the vehicle-mounted charger operates in a heating mode, the switch module conducts connection between the bridge arm midpoints of the two bridge arms of the second switch circuit and the heating module, the second switch circuit is used for receiving power supplied by the power battery and supplying power to the heating module through the bridge arm midpoints of the two bridge arms, and the heating module emits heat.

    本申请提供一种车载充电机、控制器、动力总成、电动汽车,可以降低电动汽车的加热器件冗余,提高电动汽车能量利用效率。该车载充电机包括双向直流变换电路、开关模块、发热模块。双向直流变换电路包括变压器、第一开关电路和第二开关电路。第二开关电路的两个桥臂的桥臂中点用于通过开关模块连接发热模块。车载充电机运行于充电模式,双向直流变换电路用于将第一直流电转换为第二直流电为动力电池充电。车载充电机运行于加热模式,开关模块导通第二开关电路的两个桥臂的桥臂中点与发热模块之间的连接,第二开关电路用于接收动力电池供电并通过两个桥臂的桥臂中点向发热模块供电,发热模块发热。


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    Title :

    Vehicle-mounted charger, controller, power assembly and electric vehicle


    Additional title:

    车载充电机、控制器、动力总成、电动汽车


    Contributors:
    LIU REN (author) / DOU JIQING (author) / LI PING (author)

    Publication date :

    2023-03-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H05B ELECTRIC HEATING , Elektrische Heizung



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