Double-refrigerant pipe evaporator with radiator for electric refrigerator

Abstract

An evaporator with dual cold medium pipe and grid radiator for refrigerator is characterized by that a grid radiator is between two cold medium pipes to form a whole and said radiator and pipes are bent by more than 2 segments. A defrost heater is under the evaporator. Its advantages are high cold volume and supplying speed, high heat exchanging efficiency, and high defrost effect.

Description

technical field [0001] The invention relates to an evaporator for a refrigerator, and more particularly relates to an evaporator with double refrigerant tubes and cooling fins for a refrigerator that can improve heat exchange efficiency and fluidity. Background technique [0002] First, refer to figure 1 The heat exchange process between the refrigerant and the cold air in the refrigerator will be described as follows. [0003] Refrigerant flows into the evaporator 4 behind the freezing chamber through a compressor (not shown in the figure), a condenser (not shown in the figure) and a capillary tube (not shown in the figure). The refrigerant circulates in the refrigerator cabinet in the evaporator 4 and exchanges heat with the cold air f1 at a higher temperature. Then, the cold air f2 cooled by the above-mentioned heat exchange process is sent into the freezer compartment 2 by the blower fan 6 again. Moreover, in order to maintain a lower temperature in the refrigerator, ...

AI Technical Summary

Problems solved by technology

Thus, as shown in the figure, the grill fins 30 form a structure that blocks the inclination of the flow direction of the cold air f1, which hinders the flow of the cold air f1 and reduces the heat exchange efficiency of the evaporator 4

[0014] Second, the distance between the refrigerant pipe 22 and the defroster pipe 24 is small, and the twisting angle of the grille fins 30 is also small, therefore, the space between the grille fins 30 is attached and The phenomenon of frost sealing on the surface of the refrigerant pipe 22 and the grille fin 30

However, as shown above, the defrosting pipes 24 are evenly distributed on the upper end of the evaporator 4 that does not need to perform defrosting operation, thus reducing the defrosting efficiency

[0016] Fourth, the defrosting pipe 24 is integrated with a pair of refrigerant pipes, which makes it very difficult to insert the heating wire 26 in the defrosting pipe 24, and the processing of the bent pipe parts at the two ends of the defrosting pipe 24 is also a process. big problem

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