The invention discloses a charging circuit, a charging control method and an electric vehicle. The charging circuit comprises a main loop, a first branch circuit and a second branch circuit, the main loop comprises a pre-charging resistor and a main anode contactor which are connected with the anode of the battery pack; the first branch circuit is connected with the main loop and the first charging port and comprises a first anode contactor and a first pre-charging contactor which are connected with the anode of the first charging port; the first pre-charging contactor is connected in series with the pre-charging resistor; the first anode contactor is connected between the battery pack and the first charging port, and is connected in parallel with the pre-charging resistor and the main anode contactor; and the second branch is connected with the main loop and the second charging port and comprises a second anode contactor connected with the anode of the second charging port, and the second anode contactor is connected with the pre-charging resistor and the main anode contactor in series. The pre-charging of the second branch circuit is realized by multiplexing the main anode contactor of the main loop, one pre-charging contactor is reduced, the volume of parts is reduced, the cost of the parts is reduced, and the spatial layout is optimized.
一种充电电路、充电控制方法及电动车辆,该充电电路包括:主回路、第一支路以及第二支路;主回路包括均与电池组的正极连接的预充电阻和主正极接触器;第一支路连接主回路与第一充电口,第一支路包括均与第一充电口的正极连接的第一正极接触器和第一预充接触器;第一预充接触器与预充电阻串联;第一正极接触器连接在电池组与第一充电口之间,且与预充电阻和主正极接触器均并联;第二支路连接主回路与第二充电口,第二支路包括与第二充电口的正极连接的第二正极接触器,第二正极接触器与预充电阻和主正极接触器均串联。通过复用主回路的主正极接触器实现第二支路的预充,减少一个预充接触器,缩小零件的体积,降低零件成本,优化空间布局。
Charging circuit, charging control method and electric vehicle
充电电路、充电控制方法及电动车辆
2025-05-20
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01R Elektrisch leitende Verbindungen , ELECTRICALLY-CONDUCTIVE CONNECTIONS |
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