Cryogenic advertisement of air cycle machine

The utility model discloses a cryogenic advertisement of air cycle machine, including power module, advertisement owner board, constant current board and a display screen and an at least radiator fan, power module links to each other with advertisement owner board, constant current board, radiator fan respectively, and the constant current board links to each other with the display screen, still includes a temperature detect switch and a photoswitch, and temperature detect switch sets up on the display screen, and advertisement owner board passes through temperature detect switch to be connected with radiator fan, photoswitch and advertisement machine mainboard connection. The utility model discloses a control by temperature change and two light -operated aspects are come the advertisement machine refrigeration that circulates, through fan conversion circulation of air cooling, improve its radiating effect on the one hand, on the other hand borrowed light response regulative mode is adjusted the liquid crystal screen and is shaded from the sun, and the output current of constant current board among the changing circuitry is come to the by candling power, reduces the advertisement function and consumes, optimizes its adaptability to outdoor adverse circumstances, extension complete machine life.