Refrigerator air duct and control method thereof

Abstract

The invention discloses a refrigerator air duct and a control method thereof, and relates to the technical field of refrigerators. The refrigerator air duct comprises a refrigeration chamber, a temperature changing chamber and a freezing chamber, an evaporator bin is fixedly installed on the rear side face of the freezing chamber, and a first air outlet and a first air return opening are formed in the evaporator bin; the first air outlet is connected with a refrigeration chamber air intake pipeline; one side face of the refrigeration chamber air intake pipeline is fixedly connected with a temperature changing chamber air intake pipeline; the first air return opening is connected with a refrigeration chamber air return pipeline; and one side face of the refrigeration chamber air return pipeline is fixedly connected with a first temperature changing chamber air return pipeline, and one side face of the first temperature changing chamber air return pipeline is fixedly connected with a second temperature changing chamber air return pipeline. The first temperature changing chamber air return pipeline is provided with a first air door for controlling the pipeline to be closed. According to the refrigerator air duct, by arranging the first temperature changing chamber air return pipeline, the second temperature changing chamber air return pipeline and the first air door, return air of the temperature changing chambers is fed into the refrigeration chamber, the cold air amount of the refrigeration chamber is increased, the cold air utilization rate is increased, and energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of refrigerators, and in particular relates to a refrigerator air duct and a control method thereof. Background technique [0002] "Refined partitioning" is one of the main directions of refrigerator technology development at this stage. In order to achieve precise control of the refrigeration compartment, multi-door refrigerators emerged as the times require. Most of the existing three-door air-cooled refrigerators are refrigerated compartments, variable temperature compartments and freezing compartments from top to bottom. The current air supply method for single-system three-door refrigerators is that the cold air is drawn from the evaporator compartment through the air duct, and then divided into two channels, entering the variable temperature compartment and the refrigerating compartment respectively. After heat exchange is completed, it passes through the variable temperature return air duct and The ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a refrigerator air duct and its control method. By setting the return air duct of the first variable temperature compartment, the return air duct of the second variable temperature compartment and the first damper, the structure of the air duct is optimized, and the return air of the variable temperature compartment is adjusted. The air is sent to the refrigerated room to increase the amount of cold air in the refrigerated room, improve the utilization rate of the cold air, and solve the problem that the return air in the existing room with variable temperature returns directly to the evaporator, which causes waste of cooling capacity and increases the energy consumption of the compressor

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