The invention discloses a charging and discharging circuit, a charging and discharging system and a vehicle, relates to the technical field of electric vehicles, and aims to prolong the service life of a switch module in the charging and discharging circuit. The charging and discharging circuit comprises a first branch circuit, a second branch circuit and a shunting branch circuit. The first branch circuit is electrically connected with the first pole of the battery and the first pole of the charging and discharging port, and the first branch circuit is electrically connected with a first switch module. The second branch circuit is electrically connected with the second pole of the battery and the second pole of the charging and discharging port. And the shunting branch comprises a voltage conversion module and a second switch module connected in series with the voltage conversion module, and the shunting branch is connected between the charging and discharging port and the battery. When the battery is charged in a first charging mode or the battery is discharged outwards in a first discharging mode, the first switch module and the second switch module are configured to be closed, so that a part of current flows through the first branch circuit, and the other part of current flows through the shunting branch circuit.
本发明公开了一种充放电电路、充放电系统、交通工具,涉及电动汽车技术领域,旨在延长充放电电路中开关模块的寿命。充放电电路包括第一支路、第二支路和分流支路。第一支路电连接电池的第一极和充放电端口的第一极,第一支路上电连接有第一开关模块。第二支路电连接电池的第二极和充放电端口的第二极。分流支路包括电压转换模块和与电压转换模块串联的第二开关模块,分流支路连接在充放电端口和电池之间。在以第一充电方式对电池充电,或以第一放电方式利用电池对外放电时,第一开关模块和第二开关模块被配置为闭合,以使一部分电流流经第一支路,另一部分电流流经分流支路。
Charging and discharging circuit, charging and discharging system and vehicle
充放电电路、充放电系统、交通工具
2025-04-04
Patent
Electronic Resource
Chinese
IPC: | 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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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 |
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