The invention relates to the technical field of battery heating, and provides a battery alternating current heating circuit of a vehicle. The battery alternating current heating circuit comprises a transformer, an on-off switch, a power battery and a motor control circuit. One end of the secondary side of the transformer is connected with the positive electrode of the power battery, the other end of the secondary side of the transformer is connected with the positive electrode of a high-voltage bus of the motor control circuit, and the ratio of the number of turns of the primary side of the transformer to the number of turns of the secondary side of the transformer is larger than 1; the cathode of the power battery is connected with the cathode of a high-voltage bus of the motor control circuit; one end of the primary side of the transformer is connected with one end of the on-off switch, and the other end of the on-off switch and the other end of the primary side of the transformer are connected to the output end of the motor control circuit. According to the battery alternating current heating circuit of the vehicle, the heating value of the motor control circuit can be reduced when the power battery is heated, and the battery can be heated no matter whether the vehicle runs or not.
本申请涉及电池加热技术领域,提供一种车辆的电池交流加热电路。所述电池交流加热电路包括:变压器、通断开关、动力电池和电机控制电路;所述变压器副边的一端与所述动力电池的正极连接,所述变压器副边的另一端与所述电机控制电路的高压母线正极连接,所述变压器原边与所述变压器副边的匝数比值大于1;所述动力电池的负极与所述电机控制电路的高压母线负极连接;所述变压器原边的一端与所述通断开关的一端连接,所述通断开关的另一端以及所述变压器原边的另一端接入所述电机控制电路的输出端。本申请实施例提供的车辆的电池交流加热电路能够在动力电池加热时,减少电机控制电路的发热量,并且无论车辆行驶与否,都能对电池进行加热。
Battery AC heating circuit for vehicle
车辆的电池交流加热电路
2023-01-17
Patent
Electronic Resource
Chinese
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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