电冰箱在制冷过程中,箱内食品散发出来的水分及空气中的水分,会在冰箱的蒸发器表面凝结成冰霜层。这层冰霜会妨碍蒸发器表面的热交换,影响制冷效果,从而增加耗电量。当蒸发器表面冰霜厚度达10毫米时,冰箱制冷能力将下降30％以上。也就是说, Refrigerator in the cooling process, the moisture emitted from the food inside the box and the moisture in the air, will condense into a frost layer on the evaporator surface of the refrigerator. This layer of frost will hinder the heat exchange on the evaporator surface, affecting the cooling effect, thereby increasing power consumption. When the evaporator surface frost thickness of 10 mm, the refrigerator cooling capacity will drop more than 30%. In other words,