Refrigerator

Abstract

The invention discloses a refrigerator which comprises a refrigerator body provided with an inner refrigerating compartment, an air duct, and an air return passage. The refrigerator body comprises a partition which divides the refrigerating compartment into a freezing chamber and a refrigerating chamber below the freezing chamber. The air duct is arranged on the rear wall of the freezing chamber. The air return passage is formed on the partition. A first end of the air return duct is communicated with the refrigerating chamber, and a second end of the air return passage is communicated with the air duct. The partition comprises a cover plate and a bottom plate below the same. The cover plate is connected with the bottom plate to form the air return passage. The cover plate is not smaller than 35Kg / m<3> in density and not smaller than 25mm in thickness. Interference of the freezing chamber of the refrigerator upon the return air passage is avoided, and vapor in return air is prevented from condensing and icing.

Description

technical field [0001] The invention relates to the technical field of household appliance manufacturing, in particular to a refrigerator. Background technique [0002] At present, the frozen meat in the direct cooling refrigerator needs to be thawed before cooking, and the freezer needs to be defrosted manually every once in a while. The fast-paced life, especially the young people in the city, has become more and more inclined to use frost-free refrigerators or refrigerators with soft freezers. The particularity of the structure and performance of the frost-free refrigerator, especially the design rationality of the middle air duct structure of the frost-free refrigerator, determines the performance of the frost-free refrigerator. [0003] In the past, the singleness of the outlet area of ​​frost-free refrigerators, the singleness of categories, and the singleness of product structure made the design of the middle air duct of frost-free refrigerators not comprehensively c...

AI Technical Summary

Problems solved by technology

[0005] 1. The density and thickness of the cover plate of the middle air duct is insufficient, so that the return air duct is affected by the cooling capacity of the freezer, and there is a hidden danger of freezing

[0006] 2. The slope design of the return air duct in the middle air duct is unreasonable, and there is defrosting water deposition, which causes the hidden danger of freezing

[0007] In fact, the above two points affect each other. When the density of the air duct cover is low (the current industry standard is up to 30Kg per cubic meter) and the thickness is insufficient, the "warm air" in the refrigerator will be affected by the cooling capacity of the freezer in the return air duct. , especially when the machine is shut down, it causes "condensation" in the return air duct. Due to the plane design of the return air duct and the refrigerated evaporator, or the unreasonable design of the slope, more and more water droplets accumulate in the return air duct, eventually blocking the return air. channel, so that the cold air in the refrigerator cannot form a circulating state, and the temperature of the refrigerator cannot meet the use requirements

[0008] At the same time, the slope design of the return air duct of the middle air duct is unreasonable. When the defrosting water of the evaporator in the freezer splashes into the return air duct, it cannot be evaporated and drained in time, resulting in deposition and eventually causing the hidden danger of freezing;

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