Heat exchanger, heat exchanger manufacturing method and air conditioner

Abstract

The invention discloses a heat exchanger, a manufacturing method of the heat exchanger and an air conditioner, the heat exchanger comprises at least two rows of fins, and each row of fins is provided with pipe holes arranged in rows in the length direction of the fins; the at least two rows of fins comprise a first row of fins and a second row of fins which are adjacent to each other, and transverse tube intervals between every two adjacent tube holes of the first row of fins are alternately arranged according to a first distance and a second distance in the arrangement direction of the first row of fins; the transverse pipe distances between every two adjacent pipe holes of the second row of fins are alternately arranged according to the second distance and the first distance in the arrangement direction of the second row of fins; wherein the first distance is smaller than the second distance. According to the heat exchanger, more vacant pipe holes left on the fins can be reduced, so that the heat exchange efficiency of the heat exchanger is improved.

Description

technical field [0001] The present invention relates to the technical field of heat exchange equipment, in particular to a heat exchanger, a method for manufacturing the heat exchanger and an air conditioner. Background technique [0002] During the manufacturing process of the heat exchanger, the fins need to be punched, expanded, and connected to the U-shaped tube. Among them, in the process of punching the fins, a plurality of tube holes arranged at equal intervals are usually punched on the fins, and these tube holes are denser and more numerous; in the subsequent tube expansion process, usually only Part of the tube holes are used for tube expansion, and the tube holes that are not expanded are left empty on the fins. However, the perimeter of the vacant pipe holes on these fins is usually formed with hole flanging due to punching holes, which not only increases the wind resistance of the fins and reduces the air volume, but also increases the drainage resistance of th...

AI Technical Summary

Problems solved by technology

However, the vacant tube holes on these fins usually form a perforated flange due to punching, which will not only increase the wind resistance of the fins and reduce the air volume, but also increase the drainage resistance of the fins so that the drainage is not smooth, and then Greatly reduce the heat transfer efficiency

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