Air return pipe of refrigerator

Abstract

The invention relates to an air return pipe of a refrigerator. The air return pipe comprises transverse pipes and a plurality of longitudinal pipes, wherein the transverse pipes and the longitudinal pipes are connected between the inlet end and the outlet end of the air return pipe; the longitudinal pipes are parallel to one another and vertically arranged; every two adjacent longitudinal pipes are communicated through an arc-shaped pipe; the transverse pipes and the longitudinal pipes are communicated through arc-shaped pipes; the transverse pipes are arranged horizontally. Coolants flow into the air return pipe through the inlet end, flow through the transverse pipes and the longitudinal pipes and then flow out of the outlet end. The length of the air return pipe stretching out of the refrigerator can be freely adjusted, so the air return pipe is suitable for various different refrigerator body structures and can meet the requirements for the heights of different refrigerator bodies and enhance the consistency of the refrigerator; the sensitivity of the refrigerator on the coolant capacity in the air return pipe is reduced; the product performance is ensured, the material classification varieties are reduced, and the operating efficiency on a production site is improved.

Description

Technical field [0001] The invention relates to the technical field of refrigerator heat exchange, in particular to a refrigerator air return pipe. Background technique [0002] The existing refrigerator return air pipes are not consistent enough. The height of the inlet and outlet is often inconsistent, and the height of the inlet and outlet from the box is also inconsistent. figure 1 Schematic diagram of the CE-BD70 return air heat exchange tube structure, attached figure 2 Schematic diagram of the CE-BD83 return air heat exchange tube structure. The above two types of return air heat exchange tube structures have long horizontal tubes. Because the horizontal structure is too sensitive to the refrigerant capacity in the return air pipe, when the return air pipe is full of liquid, the refrigerant will be all directly after the heat exchange through the return air pipe. When flushing into the press, when the amount of refrigerant charged into the refrigerator fluctuates slightly...

AI Technical Summary

Problems solved by technology

[0002] The consistency of the return air pipe of the existing refrigerator is not enough, the height of the inlet and outlet is often inconsistent, and the height of the inlet and outlet from the box is also inconsistent, as shown in the attached figure 1 Schematic diagram of CE-BD70 return air heat exchange tube, attached figure 2 Schematic diagram of CE-BD83 return air heat exchange tube

The horizontal tubes of the two return air heat exchange tube structures above are both relatively long. Since the horizontal structure is too sensitive to the capacity of the refrigerant in the return air tube, when the return air tube is full of liquid, the refrigerant will be completely directly after heat exchange through the return air tube. Rush into the compressor, when the amount of refrigerant filled into the refrigerator fluctuates slightly, such as an error of 1g-2g, or the system is not full of liquid, it will affect the heat transfer performance of the refrigerator

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