Air supply system for large-volume air-cooled refrigerator and air-cooled refrigerator

Abstract

The invention provides an air supply system for a large-volume air cooled refrigerator and the air-cooled refrigerator. The air supply system comprises an air channel and a draught fan, wherein a centrifugal draught fan with bidirectional air outlets is adopted by the draught fan. The invention further provides the air-cooled refrigerator adopting the air supply system. According to the air supply system for the large-volume air-cooled refrigerator and the air-cooled refrigerator, the novel centrifugal draught fan is adopted for being matched with reasonable air channel design, good flow tracks are obtained, structural vibration and pneumatic noise of the air supply system are reduced, the space occupied by the air supply system is reduced, the volume of the inner container of the refrigerator is increased, cost is reduced, energy consumption is lowered, energy is saved, and emission is reduced.

Description

technical field [0001] The invention belongs to the technical field of refrigerators, and in particular relates to an air supply system for a large-capacity air-cooled refrigerator and an air-cooled refrigerator using the air-cooled system. Background technique [0002] With the increasing popularity of refrigerators, users have higher and higher requirements on refrigerator energy consumption and noise. Aerodynamic noise. [0003] At present, the air supply system of an air-cooled refrigerator mainly adopts an air supply system with an axial flow fan as a power source. Since the air flow of the axial flow fan enters and exits along the axial direction of the fan, and there must be an air duct cover plate in the axial direction of the fan, the air supply system of the axial flow fan mainly has the following disadvantages: [0004] (1) The air inlet and outlet direction of the axial flow fan is straight in and out along the axial direction, so the impact of the air flow on ...

AI Technical Summary

Problems solved by technology

[0004] (1) The air inlet and outlet direction of the axial flow fan is straight in and out along the axial direction, so the impact of the air flow on the air duct cover plate is very strong, resulting in high aerodynamic noise, and strong impact loss will also cause energy loss. The flow is reduced, which is not good for the energy consumption of the whole machine

[0005] (2) In order to meet the air volume requirements, the overall height of the axial flow fan is generally high, which will increase the space occupied by the air supply system, correspondingly reduce the volume of the inner tank, or reduce the thickness of the foam layer, which is harmful to the refrigerator. The performance and volume of the whole machine are adversely affected

[0006] (3) The air supply efficiency of the axial flow fan and air duct air supply system is low. It can be seen from the performance curve that the working efficiency point of the axial flow fan is far from the maximum efficiency point, and the working efficiency of the whole system is low. The energy loss is high, which is not conducive to the overall energy consumption level of the refrigerator

[0008] (1) The wind inlet and outlet direction of the air duct does not match the wind inlet and outlet direction of the fan, resulting in large impact loss at the inlet and outlet and high noise

[0009] (2) The impact loss and resistance loss of the air flow in the inner flow channel of the air duct are relatively large, resulting in increased energy consumption

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