The embodiment of the invention provides a power battery alternating current heating circuit and an electric vehicle. The power battery alternating current heating circuit comprises a three-phase motor; the middle point of each phase of inverter circuit of the three-phase inverter circuit is connected with one phase of the three-phase motor; the first battery circuit and the second battery circuit are respectively connected with the three-phase inverter circuit in parallel; the first battery circuit is formed by connecting a first energy storage device and a first secondary side of a transformer in series; the second battery circuit is formed by connecting a second energy storage device and a second secondary side of the transformer in series; the first end of the first secondary side is connected with the first energy storage device; the first end of the second secondary side is connected with the second energy storage device; the first end of the first secondary side and the first end of the second secondary side are different-name ends; the number of winding turns of the first secondary side is the same as that of winding turns of the second secondary side; the first energy storage device and/or the second energy storage device are/is a battery pack. The overall external voltage of the battery pack is not influenced by alternating current, and electric equipment on the direct current bus is prevented from being influenced.

    本申请实施例提供一种动力电池交流加热电路及电动汽车,包括:三相电机;三相逆变电路,三相逆变电路的每相逆变电路的中点分别和三相电机的一相连接;第一电池电路和第二电池电路,第一电池电路、第二电池电路分别和三相逆变电路并联;第一电池电路由第一储能器件和变压器的第一副边串联而成;第二电池电路包括:第二储能器件和变压器的第二副边串联而成;第一副边的第一端和第一储能器件连接;第二副边的第一端和第二储能器件连接;第一副边的第一端和第二副边的第一端为异名端;第一副边的绕制匝数和第二副边的绕制匝数相同;第一储能器件和/或第二储能器件为电池组。电池包整体对外电压不会被交流电影响,避免直流母线上的用电设备受到影响。


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    Title :

    Power battery alternating current heating circuit and electric automobile


    Additional title:

    一种动力电池交流加热电路及电动汽车


    Contributors:
    XIA ZHULIANG (author) / WANG GUANG (author) / GAN MAOPENG (author) / HUANG WENXU (author) / JIA JISHENG (author)

    Publication date :

    2023-01-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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