Connecting pipe fitting used between air return pipe and compressor

Abstract

The invention discloses a connecting pipe fitting used between an air return pipe and a compressor, and relates to the technical field of refrigerator refrigeration pipeline connecting processes. The connecting pipe fitting comprises the air return pipe; the air return pipe is connected with the compressor; a compressor air suction pipe is arranged on the compressor; the air return pipe comprises an air return pipe insertion section matched with the compressor air suction pipe; a locking ring is arranged on the peripheral side of the air return pipe insertion section, and the air return pipe and the compressor air suction pipe are locked by the locking ring; sealant is arranged between the air return pipe insertion section and the compressor air suction pipe; an opening of the air return pipe insertion section is inclined upwards and is inserted with the peripheral side of the compressor air suction pipe; and the air return pipe inserting section is of a flaring structure. The air return pipe and the compressor air suction pipe are directly locked by the locking ring, and the problem that an existing copper-aluminum resistance welding spot is prone to electrochemical corrosion in the humid environment of the air return pipe is solved through the effects of the sealant and a waterproof plasticizing film.

Description

technical field [0001] The invention belongs to the technical field of refrigerator refrigeration pipeline connection technology, and in particular relates to a connection pipe fitting used between a return air pipe and a compressor. Background technique [0002] The refrigeration system of household refrigerators and freezers is a closed circuit composed of condensers, capillary tubes, evaporators, return air pipes, and compressors. Flow, to achieve heat transfer, the connection process between the components of the refrigeration system is very critical, once the refrigerant leaks, the refrigeration function of the refrigerator and freezer will be lost. [0003] At present, most of the air return pipes of refrigerators (cabinets) are aluminum pipes, and the suction pipes of compressors are copper pipes. Affected by the weldability of materials, the end of the traditional aluminum air return pipe must be welded with a section of copper connecting pipe by resistance welding. ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a connecting pipe used between the air return pipe and the compressor, which directly locks the air return pipe and the suction pipe of the compressor through the locking ring, and sets the sealant and the waterproof plasticized film, Solve the problem that the existing copper-aluminum resistance solder joints are prone to electrochemical corrosion in the humid environment of the return air pipe

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