Core assembly and water-air intercooler

Abstract

The invention relates to the technical field of heat exchange devices, in particular to a core assembly and a water-air intercooler. The core assembly is applied to the water-air intercooler, and comprises a mainboard, a shell, a limiting structure and a matching structure, wherein two ends of the shell are respectively connected with the mainboard; one of the limiting structure and the matching structure is arranged on the mainboard; the other one of the limiting structure and the matching structure is arranged on the shell; and the limiting structure is connected with the matching structure,so that the welding part of the shell and the mainboard is prevented from being separated. According to the core assembly provided by the invention, in the welding process, each part is expanded at high temperature and retracted after being cooled, but the limiting structure is connected with the matching structure, so that the occurrence of the phenomenon that a gap appears between the shell andthe mainboard due to the inconformity of the cold contraction amount of the shell and the cold contraction amount of the mainboard in one same contraction direction is avoided, the occurrence of insufficient welding and the lack of welding between the mainboard and the shell is avoided, the occurrence of leakage of the core assembly is further avoided, and the reliability of the core assembly isimproved.

Description

technical field [0001] The invention relates to the technical field of heat exchange devices, in particular to a core assembly and a water-to-air cooler. Background technique [0002] The core assembly is an important part of the water-to-air cooler and a key structure for heat exchange. The reliability of the core assembly has a great influence on the reliability of the water-to-air cooler. At present, a commonly used core component includes a shell, a main board, and multiple heat exchange tubes; multiple heat exchange tubes are stacked along a set direction, and the two ends of the heat exchange tubes are inserted into the corresponding mounting holes of the main board , After the core assembly is assembled, the core assembly should be brazed as a whole. During the brazing process, there is thermal expansion and contraction, and the shrinkage between the main board and the shell is different, which may easily lead to false welding between the main board and the shell, r...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a core assembly and a water-to-air cooler to solve the problem of thermal expansion and contraction in the brazing process in the prior art, and the shrinkage between the main board and the shell is different, which is easy Lead to false welding between the main board and the shell, resulting in leakage of core components and low reliability technical problems

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