CN204064072U - Heat exchange core body folded tube - Google Patents

Abstract

The utility model discloses a kind of heat exchange core body folded tube, comprise core body, composite bed, kink; Core body is outside equipped with composite bed, and core body is Type B flat tube shape, is provided with kink in the middle part of core body, and described kink is the U-shaped of symmetry, and described core body forms two independently seal channels by kink.The utility model, by increasing a bit of folded section again in the end that material is original, can reach good flat tube interior welds rate and minimum flat tube slip.

Description

Heat exchange core body folded tube

Technical field

The utility model relates to a kind of folded tube, is specifically related to a kind of heat exchange core body folded tube.

Background technology

At present in the heat exchange core body of air-conditioning, folded tube just progressively substitutes ratio-frequency welded tube.Compared with ratio-frequency welded tube, folded tube has shaping simple, low cost and other advantages.

Folded tube is melted when soldering by material surface composite bed, then cools and the seal channel formed.

Be illustrated in figure 1 a kind of common folded tube, common folded tube only has minimum a part of composite at interior welds place, and interior welds rate instability causes whole core body intensity to reduce, and the slip of folded tube is higher than ratio-frequency welded tube usually.

Utility model content

Because the above-mentioned defect of prior art, the utility model provides a kind of heat exchange core body folded tube, and this folded tube, by increasing a bit of folded section again in the end that material is original, can reach good flat tube interior welds rate and minimum flat tube slip.

For achieving the above object, the utility model provides a kind of heat exchange core body folded tube, comprise described core body, described composite bed, described kink, described core body is outside equipped with described composite bed, described core body is Type B flat tube shape, be provided with described kink in the middle part of described core body, described kink is the U-shaped of symmetry.

Preferably, described core body forms two independently seal channels by described kink.

Preferably, described core body is aluminium foil.

The beneficial effects of the utility model:

The a bit of folded section of folded tube of the present utility model by increasing, the solder at folded tube interior welds place is increased greatly, and folded tube interior welds rate can reach more than 99.5%, and the sealing of whole folded tube also can reach 99.9%.

Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.

Accompanying drawing explanation

Fig. 1 is the structural representation of prior art;

Fig. 2 is structural representation of the present utility model.

Detailed description of the invention

With reference to Fig. 2, this detailed description of the invention by the following technical solutions: heat exchange core body folded tube, comprises core body 1, composite bed 2, kink 3.

Core body 1 is outside equipped with composite bed 2, and core body 1 is Type B flat tube shape, is provided with kink 3 in the middle part of core body 1, and kink 3 is the U-shaped of symmetry.

Concrete, described core body 1 forms two independently seal channels by kink 3, and the solder at folded tube interior welds place is increased greatly.

For ease of welding and use, what core body 1 adopted is aluminium foil, increases welding rate.

The folded tube of this detailed description of the invention is through tuber, the aluminium foil of employing one band one side composite rolls that the preform of mould, multiple tracks are folding, shaping, after cut-out, make Type B flat tube as shown in Figure 2, after assembling, soldering, form the flat tube with two independent sealed passages.

The a bit of folded section of folded tube of the present utility model by increasing, the solder at folded tube interior welds place is increased greatly, and folded tube interior welds rate can reach more than 99.5%, and the sealing of whole folded tube also can reach 99.9%.

More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technical staff in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.

Claims (3)

1. heat exchange core body folded tube, is characterized in that, comprises core body, composite bed, kink; Described core body is outside equipped with described composite bed, and described core body is Type B flat tube shape, is provided with described kink in the middle part of described core body, and described kink is the U-shaped of symmetry.

2. heat exchange core body folded tube according to claim 1, is characterized in that, described core body forms two independently seal channels by described kink.

3. heat exchange core body folded tube according to claim 1, is characterized in that, described core body is aluminium foil.