Air flue system and refrigerator

Abstract

The invention provides an air flue system and a refrigerator. The air flue system comprises an air flue assembly and a rectifying hood, wherein an air flow channel is formed in the air flue assembly and provided with an air outlet and a return air inlet, the air outlet and the return air inlet are communicated with a containing cavity, air flow can enter the containing cavity through the air outlet and return to the air flow channel through the return air inlet, and an evaporator and a fan are arranged in the air flow channel and used for cooling the air flow and leading the cooled air flow into the containing cavity; the rectifying hood is arranged between the return air inlet and the evaporator and provided with multiple air holes. According to the air flue system, the rectifying hood is arranged between the return air inlet and the evaporator, and return air flow flows through the rectifying hood after entering the air flow channel through the return air inlet, forms uniform and stable air flow under the rectifying action of the rectifying hood and then flows to the evaporator; in this way, the uniformity of the return air flow flowing through the evaporator is improved, and then heat exchange efficiency of the evaporator is improved.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to an air duct system and a refrigerator including the air duct system. Background technique [0002] At present, in the existing refrigerators, the air return channel is located at the bottom of the refrigerator box, and the return air flow gathers in the return air outlet from four places in the box, so the return air flow is extremely turbulent; and the fan inlet is located in the middle of the air duct, so that the air flow goes to the middle. The locations are converging, so the airflow through the evaporator is more uneven, and most of the airflow flows through the middle of the evaporator, resulting in low heat exchange efficiency on both sides of the heat exchanger. Contents of the invention [0003] In order to solve at least one of the above technical problems, an object of the present invention is to provide an air duct system that can effectively improve the heat...

AI Technical Summary

Problems solved by technology

[0002] At present, in the existing refrigerators, the air return channel is located at the bottom of the refrigerator box, and the return air flow gathers in the return air outlet from four places in the box, so the return air flow is extremely turbulent; and the fan inlet is located in the middle of the air duct, so that the air flow goes to the middle. The positions are converging, so the airflow through the evaporator is more uneven, and most of the airflow flows through the middle of the evaporator, resulting in lower heat transfer efficiency on both sides of the heat exchanger

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