There are three common types of refrigerator refrigeration: air cooling, direct cooling, and mixed cooling. In addition, others include solar refrigerators (using solar energy as a cooling tube), chemical refrigerators (cooling by absorbing heat when chemicals dissolve), etc. variety. In the newly released energy-efficiency product catalog, only the compression refrigerators are within the energy-efficiency range, and the other two are not within the energy-efficiency range.
The difference between air cooling and mixed cooling is as follows:
The cooling method is different. The air-cooled refrigerator is the cold air generated by the built-in hidden evaporator, which is forced to circulate through the fan so that the cold air is evenly distributed in each compartment of the refrigerator to achieve refrigeration. Due to the existence of the fan, the refrigeration speed of the air-cooled refrigerator is faster. Especially for large-capacity refrigerators, it is more convenient to use. Therefore, air-cooled refrigerators are mainly used in large-capacity products. The refrigerating and freezing room is air-cooled so that it is not necessary to defrost manually, and the refrigerating room is directly cooled.
The moisturizing effect is different. The air-cooled refrigeration has fast freezing and uniform temperature. The defrosting is automatic defrosting without manual operation, but the food is easy to be air-dried, the humidity in the refrigerator is small, and the moisturizing effect of vegetables is not good. Plastic bags or containers must be used for moisturizing. The refrigerator compartment of the hybrid refrigerator is refrigerated, and the refrigeration is performed by the evaporator. The evaporator is in the freezer compartment and is in direct contact with the inner wall of the freezer compartment for heat exchange. The refrigeration evaporator is composed of S-shaped refrigeration coils. The cold air produced by the compressor passes through the pipes, so the temperature of the pipes is very low. Through these pipes, the temperature of the inner wall of the refrigerator is indirectly reduced, so as to realize heat exchange, gradually reduce the temperature of the refrigerator, and maintain the moisturizing effect. good.
The last point is that the design of air-cooled refrigerators is relatively simple, simple, and the price is lower. The structure of the mixed-cooling refrigerator is more complicated than that of the air-cooled type. It combines direct cooling and air-cooling, and the design and manufacturing costs are higher, and the general price is also higher.