Characteristics and differences between air-cooled freezer and direct-cooled freezer \x0d\ Differences in refrigeration modes between air-cooled freezer and direct-cooled freezer The refrigerated display cabinet is simply stated as follows: The air-cooled freezer has a fan, which will automatically defrost if it does not freeze. Direct cooling, no fan, icing, manual defrosting. \x0d\ direct cooling type: also known as natural convection of cold air. The refrigerating room has an evaporator, and the size of the evaporator is reasonable according to the size and temperature requirements of the room. The cooling method is to cool food by natural convection of cold air. \x0d\ air cooling: equipped with a finned evaporator and a set of air duct circulation components. The fan motor circulates the air in the box cooled by the evaporator up and down to achieve the purpose of refrigeration. Because the cold air blows in, it will not cause the stored food to absorb moisture and frost. So the air-cooled type is also called frost-free type. In fact, frost-free only means that there is no frost on the inner wall surface, and the evaporator surface is still frosted, which is only automatic defrosting without manual defrosting. \x0d\ Because of the different refrigeration methods, the main performance indexes of direct cooling and air cooling are also quite different: direct cooling consumes less electricity, has low noise and low price, and keeps food fresh; Slow speed, poor temperature uniformity, manual defrosting. Mainly in China and Europe. Air-cooled freezing has the advantages of fast freezing speed, no frost (automatic defrosting), food preservation and good temperature uniformity. But the power consumption is high, the noise is high and the price is high.