Utilize fresh air device that solar energy preheats

The utility model provides an utilize fresh air device that solar energy preheats, belongs to air exchange technical field, including fresh air unit, intake stack, suction fan, electric heater, controller and temperature sensor, is connected with the hot -blast main on the intake stack, installs power -driven air valve between intake stack and the hot -blast main, and the hot -blast main other endis connected with solar collector through the air heater, and the switch of blast gate is connected to the controller, and the controller is connected with light sensor. During operation, controllerpass through temperature sensor determine outdoor temperature, and when outdoor temperature was less than the setting value, rethread light sensor detected outdoor luminosity, if outdoor luminosity isgreater than the setting value, that is to say sufficient sunshine, then the blast gate is opened to the controller to open the air heater, the cold air passes through solar collector and is heated,through hot -blast main and