Refrigerator with refrigeration module facilitating defrosting and drainage structure

Abstract

The invention discloses a refrigerator with a refrigeration module facilitating defrosting and drainage structures, and relates to the technical field of refrigeration. The refrigerator comprises a freezing chamber, a refrigerating chamber and a refrigerating module shell. The refrigerating module shell is fixed to the top of the freezing chamber. An evaporator is fixed into the refrigerating module shell. Sealing heat preservation foam is arranged between the evaporator and a refrigerator body of the refrigerator. A heater and an aluminum plate are fixed between the evaporator and heat insulation foam. The refrigerator is separately provided with a refrigerating chamber air return channel and a freezing chamber air return channel. The air return channels communicate with each other. The upward air outlet area of a fan supplies air to the refrigerating chamber through a cold air channel, then the air flows into the evaporator through the freezing chamber air return channel, and complete air path circulation is formed. According to the refrigerator with the refrigeration module facilitating defrosting and drainage structures, through the aluminum plate flanging structure design and the heater layout design, the adverse effect of parts on drainage is effectively reduced, the defrosting reliability of the refrigerator is improved without depending on the inclination angle of the fin evaporator, and the effective volume of the refrigerator is increased.

Description

technical field [0001] The invention belongs to the technical field of refrigeration, and in particular relates to a refrigerator with a refrigeration module which is beneficial for defrosting and drainage. Background technique [0002] The finned evaporator of a conventional air-cooled refrigerator is usually placed at the back of the storage compartment. The temperature of the finned evaporator is lower than the air temperature in the compartment, which increases the temperature difference between the inside and outside of the box and increases the heat load of the box. Due to structural constraints, the rear space of the storage compartment is pulled up and down and used to place finned evaporators, fans and air ducts, resulting in a waste of available volume for the refrigerator, and the higher the compartment, the more obvious the reduction in volume ratio. Usually, the finned evaporator uses a steel pipe heater to defrost, and the heat is mainly concentrated at the bot...

AI Technical Summary

Problems solved by technology

[0003] The finned evaporator of the air-cooled refrigerator is installed on the top of the compartment, and its structural features include: First, the finned evaporator is set at an inclination angle to the horizontal direction, and the defrosting water is automatically discharged through the action of gravity, usually to ensure the use of the refrigerator Function and effective volume, and the designed inclination angle is not easy to be too large. Therefore, if the defrosting water is not drained smoothly, the cooling effect will be affected, or even no cooling. If the time is too long, the ambient humidity is high, or the seal between the door body and the box body leaks cold, etc., a large amount of humid air will gather at the return air outlet, resulting in frost or ice blockage at the return air outlet, which will affect the normal use of the refrigerator; the third is for the evaporator interval The permanent defrosting aluminum tube heater is fixed on the surface of the evaporator. Due to the hard contact between the heater and the fins, during the production process, the loss of heater parts is large and the operation is difficult.

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