The invention discloses an electric vehicle pre-charging circuit board and a charging circuit. The electric vehicle pre-charging circuit board comprises a protection loop, a control loop and a plurality of voltage sampling loops; the protection loop, the control loop and the plurality of voltage sampling loops are uniformly distributed on the printed circuit board, the protection loop comprises apre-charging resistor and a pre-charging switch which are connected in series, the pre-charging resistor comprises a thermistor, and two ends of the protection loop are respectively provided with a pre-charging access point; the control loop comprises a switch control input interface and a switch control output interface, and the switch control input interface and the switch control output interface are both connected with the pre-charging switch; and the voltage sampling loop comprises a voltage sampling input interface and a voltage sampling output interface, and a fuse device is connected in series between the voltage sampling input interface and the voltage sampling output interface. The pre-charging circuit board of the electric automobile is high in integration level, convenient to use, capable of achieving short-circuit or overload protection and good in performance.
本发明公开了一种电动汽车预充电路板及充电电路,电动汽车预充电路板包括保护回路、控制回路和若干个电压采样回路,保护回路、控制回路和若干个电压采样回路均布设于印刷电路板上,保护回路包括串联的预充电阻和预充开关,预充电阻包括热敏电阻,且保护回路两端各设有一预充接入点;控制回路包括开关控制输入接口和开关控制输出接口,开关控制输入接口和开关控制输出接口均与预充开关相连;电压采样回路其包括电压采样输入接口和电压采样输出接口,且电压采样输入接口和电压采样输出接口之间串联有一熔断器件。本发明提供的电动汽车预充电路板,不仅集成度高,使用方便,而且可以实现短路或过载保护,性能较好。
Electric vehicle pre-charging circuit board and charging circuit
一种电动汽车预充电路板及充电电路
2020-05-22
Patent
Elektronische Ressource
Chinesisch
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