Air supply system of refrigerator, refrigerator and air supply method

Abstract

The invention relates to an air supply system of a refrigerator, the refrigerator and an air supply method. The air supply method is characterized in that small separated circulations are formed by respective and independent air supplying in each area separated by laminating frames, elevation-type air supply is adopted in an upper area of a refrigerator body, diving-type air supply is adopted in a middle area of the refrigerator body, thus reverse circulation of the middle area of the refrigerator body is caused, and airflow disturbance is formed by joining downward airflow with reserve airflow. According to the air supply system of the refrigerator, the refrigerator and the air supply method, disclosed by the invention, independent air supply in each area of the refrigerator is realized, thus no dead corner is generated in the refrigerator, the temperature uniformity is good, the refrigerating efficiency is high, food cannot be directly blown by cold air, and the fresh preservation capacity of the food is obviously increased; in addition, the elevation-type air supply is matched with the diving-type air supply, thus the reserve circulation can be formed in local areas, the active airflow disturbance can be caused, the non-uniformity of refrigerating capacity is overcome, the loss of the refrigerating capacity is reduced, and the temperature balancing performance and the refrigerating efficiency are further 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 mode, and belongs 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...

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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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