Control circuit of refrigerating air conditioner of electric vehicle

The invention discloses a control circuit of a refrigerating air conditioner of an electric vehicle. The control circuit of the refrigerating air conditioner of the electric vehicle comprises a whole vehicle controller and a whole vehicle data acquiring terminal, wherein the whole vehicle data acquiring terminal is connected with the whole vehicle controller; the whole vehicle controller is connected with a relay, the refrigerating air conditioner and a refrigerating unit control circuit; the refrigerating unit control circuit comprises a three-phase high-voltage relay, an electromotor, a compressor, a refrigerating air conditioner control panel, a fan relay and a refrigerating unit fan which are sequentially connected with one another; the refrigerating air conditioner control panel and the three-phase high-voltage relay are connected in parallel and then are connected with the whole vehicle controller; the refrigerating air conditioner control panel is further connected with the relay; the refrigerating air conditioner is connected with a contactor; the contactor is further connected with the whole vehicle controller; and the refrigerating air conditioner and the refrigerating air conditioner control panel are further connected with the whole vehicle controller respectively. Through the circuit, a refrigerating unit can be combined to the whole vehicle according to an electrical principle, data of the refrigerating unit are monitored in real time, and data of the refrigerating air conditioner are acquired conveniently. Moreover, the circuit is simple in structure, low in cost and convenient to operate.