The embodiment of the invention provides a battery self-heating circuit and a vehicle, and the battery self-heating circuit comprises a battery pack; a resonance device; the battery pack comprises a first battery module and a second battery module, the resonance device comprises a power switch and is used for generating high-frequency current to heat the battery pack on the basis of opening and closing of the power switch; the first battery module comprises a first upper battery sub-module and a first lower battery sub-module; the second battery module comprises a second upper battery sub-module and a second lower battery sub-module; the second end of the first upper battery sub-module is connected with the second end of the second lower battery sub-module; the first end of the resonance device is connected with the second end of the first upper battery sub-module; the second end of the resonance device is connected with the second end of the second upper battery sub-module; and the first battery module and the second battery module have the same battery capacity. Compared with a battery self-heating circuit with the same capacity in the prior art, the circuit can reduce the voltage borne by the power switch in the resonance device.
本申请实施例提供一种电池自热电路和车辆,其中,电池自热电路包括:电池包;谐振装置;电池包包括:第一电池模块、第二电池模块;谐振装置包括:功率开关,谐振装置用于基于功率开关的开闭产生高频电流为电池包加热;第一电池模块包括:第一上电池子模块和第一下电池子模块;第二电池模块包括:第二上电池子模块和第二下电池子模块;第一上电池子模块的第二端和第二下电池子模块的第二端连接;谐振装置的第一端和第一上电池子模块的第二端连接;谐振装置的第二端和第二上电池子模块的第二端连接;第一电池模块和第二电池模块的电池容量相等。相比于现有技术中相同容量的电池自加热电路,该电路能够使得谐振装置中的功率开关承受的电压降低。
Battery self-heating circuit and vehicle
一种电池自热电路和车辆
2022-07-29
Patent
Electronic Resource
Chinese
IPC: | 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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