Vehicle-mounted refrigeration semiconductor blast system and control method thereof, and vehicle-mounted refrigeration semiconductor device

The invention discloses a vehicle-mounted refrigeration semiconductor blast system and a control method thereof, and a refrigeration semiconductor device. The invention is applicable to the cold areaof the north, fully utilizes the characteristics of the refrigeration semiconductor to replace the current automobile blast system, and can effectively reduce the emission of automobiles and the consumption of energy. The on-board refrigeration semiconductor blower system has the following three modes: first, the cooling water of the engine is heated by the heat generated by the refrigeration semiconductor refrigeration sheet when the refrigeration semiconductor refrigeration sheet is energized to achieve the effect of warming up the vehicle, so that the automobile engine reaches the appropriate working temperature at a faster speed, and the demisting and humidity removing can be realized by the refrigeration end; 2, that reverse work of the semiconductor refrigeration sheet is utilized tohave the characteristic o