The invention discloses a low-voltage auxiliary power supply 12V/24V charging pile self-adaptive charging circuit system and relates to the field of electrical circuits. The system comprises a solid-state relay arranged in a vehicle high-voltage charging circuit, wherein an input end of the solid-state relay is used for being connected with an output end of a charging pile low-voltage auxiliary power supply; an output end of the solid-state relay is connected with a 24V power supply, a BMS and a VCU of a vehicle. The voltage outputted by the low-voltage auxiliary power supply of the charging pile is 12V or 24V; and the solid-state relay is used for converting the voltage outputted by the low-voltage auxiliary power supply of the charging pile into 24V based on the wide voltage characteristic. According to the system, the solid-state relay is directly arranged in the low-voltage charging circuit, so the occupied space of the vehicle is reduced, convenience is brought to the arrangementof the whole vehicle, and cost of the vehicle is reduced.
本发明公开了一种低压辅助电源12V24V充电桩自适应充电电路系统,涉及电气电路领域,包括设置于车辆高压充电电路中的固态继电器,所述固态继电器的输入端用于与充电桩低压辅助电源输出端相连,以基于宽电压特性对充电桩低压辅助电源输出的电压进行转换,所述固态继电器的输出端与车辆的24V电源、BMS和VCU均相连。所述充电桩低压辅助电源输出的电压为12V或24V;所述固态继电器用于基于宽电压特性将充电桩低压辅助电源输出的电压转换为24V。本发明通过将固态继电器直接设置在低压充电电路中的方式,减少车辆空间占用,给整车布置带来便利性,并降低车辆成本。
Self-adaptive charging circuit system for 12V/24V charging pile of low-voltage auxiliary power supply
低压辅助电源12V24V充电桩自适应充电电路系统
2021-02-19
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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