Air duct assembly and refrigerating device

Abstract

The invention provides an air duct assembly and a refrigerating device. The air duct assembly comprises an air duct, an evaporator, a heating part and a thermal insulation part. The evaporator is arranged in the air duct; the heating part is arranged in the air duct; the thermal insulation part comprises a compound thermal insulating layer which comprises a thermal insulating part and a radiationreflecting part, the thermal insulating part is attached to the inner wall face of the air duct, and the radiation reflecting part is arranged on the thermal insulating part and is located on the sideclose to the heating part. According to the air duct assembly provided by the invention, as the compound thermal insulating layer comprising the thermal insulating part and the radiation reflecting part is arranged on the inner wall face of the air duct to protect the air duct, the reflectivity to heat of an infrared part is improved effectively, and the temperature of the air duct is reduced effectively, so that the air duct is prevented from being roasted and melted and damaged.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to an air duct assembly and a refrigeration device. Background technique [0002] The refrigerator uses the throttling cold effect during the phase change process of the refrigerant in the evaporator to take away the heat from the inside of the refrigerator, so that the refrigerator can cool down. At present, refrigerators with larger volumes generally use air-cooled evaporators as refrigeration components, and common air-cooled evaporators are finned evaporators, such as figure 1 with figure 2 shown. Since the food stored in the refrigerator itself contains moisture, a certain amount of water vapor will also enter when the refrigerator door is opened and closed. The water vapor will enter the air duct along with the air circulation loop in the air-cooled refrigerator, and then flow through the surface of the finned evaporator. , and since the surface of the finned evapora...

AI Technical Summary

Problems solved by technology

Although this method can reflect part of the heat generated by the heater back to avoid the risk of deformation of the air duct cover and tank, but due to the structure of PE sponge plus aluminum foil and the structure of aluminum foil on the upper part of the aluminum water tray, it is difficult for The reflection effect of infrared heat is not strong, resulting in extreme working conditions, such as the increase of power supply voltage in some areas, the power of the heater increases, resulting in higher surface temperature, so that the air duct cover and the tank are baked and even deformed. risk of roasting

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