Air duct system for refrigerator

Abstract

The invention relates to the field of refrigeration equipment, in particular to an air duct system inside a refrigerator. The air duct system comprises a tank body, a tank linear, an evaporator and a fan. A middle air duct assembly comprises a casing and a freezing air return hose in the casing, and the casing is provided with a freezing air return inlet, a refrigeration air supplying inlet, a freezing chamber water collecting tank, a freezing air return outlet, a freezing chamber water discharging tank, a refrigeration air return opening and a ventilation door chamber. The freezing air return inlet is communicated with a freezing chamber, the refrigeration air supplying inlet is communicated with a freezing air duct, the freezing chamber water collecting tank is located below the evaporator, the freezing air return outlet is communicated with the freezing chamber, the freezing chamber water discharging tank is communicated with the freezing chamber water collecting tank, the refrigeration air return opening is communicated with the refrigeration chamber, the ventilation door chamber is communicated with the refrigeration air supplying inlet, and the freezing air return hose is communicated with the freezing air return inlet and the freezing air return outlet. According to the structure, the tightness of the air duct is effectively improved, a pipeline structure of the tank body is simplified, assembly is simplified, the electric ventilating door can be embedded in a middle air duct, and the space of the refrigeration chamber is not occupied.

Description

technical field [0001] The present invention relates to the field of refrigeration equipment, and more specifically, to an air duct system in a household refrigerator. Background technique [0002] At present, for refrigerators and freezers on the market, the common tank structures include the upper and lower splicing type and the bathtub type structure. After assembly in many complex processes such as the pipeline, it is foamed with the tank as a whole to form a box. This installation method has many procedures and is highly dependent on assembly technology and proficiency. Therefore, the sealing of the air duct in the refrigerator is often unstable, and it is easy to freeze when the air duct defrosts. The top of the refrigerator is prone to condensation; and in refrigerators with electric dampers, due to maintenance factors, they cannot be embedded in the bubble layer, but can only be installed in the refrigerator, so it will definitely occupy a part of the volume of the ...

AI Technical Summary

Problems solved by technology

This installation method has many procedures and is highly dependent on assembly technology and proficiency. Therefore, the sealing of the air duct in the refrigerator is often unstable, and it is easy to freeze when the air duct defrosts. Condensation is easy on the top of the refrigerator; and in refrigerators with electric dampers, due to maintenance factors, it cannot be embedded in the bubble layer, but can only be installed in the refrigerator, so it will definitely occupy a part of the volume of the refrigerator

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