Air supply system for refrigerator, refrigerator and air supply method

Abstract

Disclosed are a ventilation system for a refrigerator, a refrigerator and a ventilation mode. Respective and independent ventilation in each area separated by a shelf (2) forms a separate small cycle, and a region at the upper part of a refrigerator body (1) uses elevation-type ventilation, whereas an area at the middle of the refrigerator body (1) uses subduction-type ventilation, creating a reverse cycle in the middle area of the refrigerator body (1), and downward air flow converges with the reverse air flow to form an air flow disturbance. Ventilation is independent in each area of the refrigerator, making the refrigerator interior seamless, with good uniformity of temperature, and high refrigeration efficiency, and cold air will not blow directly onto food, so the capacity of food to remain fresh is also markedly increased.

Description

technical field [0001] The invention relates to a refrigerator, in particular to a refrigerator air supply system, a refrigerator and an air supply method, belonging to the technical field of refrigerators. Background technique [0002] The large-volume air-cooled refrigerator includes a box body and a door body. Shelves, drawers, etc. are arranged in the box body. An air supply duct is arranged inside the rear wall of the box inner tank, and an evaporator and a centrifugal fan are arranged in the air duct. The air return port is generally arranged at the bottom of the box body, and a plurality of air supply ports are arranged on the rear wall of the box liner. The hot air enters the air duct from the air return port and exchanges heat with the evaporator. Under the action of the centrifugal fan, it is sent out through each air supply port to form a cold air circulation in the box and reduce the temperature in the box. [0003] At present, large-volume air-cooled refrigerat...

AI Technical Summary

Problems solved by technology

[0003] At present, large-volume air-cooled refrigerators generally use three air supply methods: figure 1 As shown, the parallel air supply method is adopted. The cold air processed by the evaporator is sent into the cabinet in parallel from multiple air supply outlets on the upper part of the refrigerator. The disadvantage of this air supply method is that the cold air blown from the air supply outlet directly blows the food. , which is not conducive to food preservation, and at the same time, food is easy to block the air duct and affect the air circulation

like figure 2 As shown, the one-way air outlet system is adopted, and all the air supply outlets supply air upward. The disadvantage of this air supply method is that the lower part of the box has a higher temperature, which is prone to temperature gaps.

like image 3 As shown, a double-sided air outlet system is used to supply air to both sides of the box. The disadvantage of this air supply method is that the cold air blows directly to the side wall and door seal, resulting in a large loss of cooling capacity.

Moreover, these three air supply methods are prone to dead angles due to unsmooth and uneven air supply.

[0004] Because the above three air supply methods are adopted, the installation of the shelves in the refrigerator is as follows: Figure 4 As shown, in order to escape the wind, a gap 19 is reserved between the shelf 2 and the rear wall 4 of the cabinet 1 after installation. This design is easy to aggravate the phenomenon of food odor and cold loss in the refrigerator

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