JPS627480B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method of manufacturing a heat exchanger for use in a refrigerator.

Conventional technology Generally, a heat exchanger in which a pipe serving as a heat source is tightly attached to a heat exchange plate surface with a holding plate or heat exchangeable foil is disclosed in Utility Model Application Publication No. 54-17264 and Japanese Patent Application Publication No. 52-22153. It is known in official gazettes, etc.

Problems to be Solved by the Invention However, with these, the shape of the presser plate must be processed in advance, and the shape makes it difficult to store and install the plate.

In view of the above-mentioned problems, the present invention aims to improve the workability of attaching foil.

Means for Solving the Problems Therefore, the present invention forms an adhesive surface and a non-adhesive surface on a flat foil, and attaches the heat source pipe to the heat exchange plate using the adhesive layer, and at the same time, the non-adhesive surface is brought into contact with the plate. Then, by separating this plate from the heat source pipe, it can be raised to form a fin.

Function: As a result, heat dissipation fins can be easily formed on a flat foil, and since the work is performed using a flat foil, it does not take up much space for storage.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a heat exchange plate, on the surface of which a heat source pipe 2 is fixed with a heat exchangeable foil 3 made of a flat thin foil of aluminum or the like. and,
The foil 3 has an adhesive layer 4, and the heat source pipe 2 is attached to the adhesive layer 4.
Further, both ends of the heat exchangeable foil 3 have non-adhesive surfaces 4a on which no adhesive is applied, as shown in FIG.

That is, the heat exchangeable foil 3 is fixed to the heat exchange plate 1 by the adhesive layer 4, the heat source pipe 2 is attached, and the non-adhesive surface 4a is made to rise above the heat exchange plate 1 to form the fin 3a.

The fins 3a increase the surface area that contributes to heat exchange, in other words, the area that comes into contact with the outside air, thereby improving heat exchange efficiency. As a result, the length of the heat source pipe 2 required to carry out predetermined heat exchange can be shortened.

FIG. 4 shows a method of manufacturing the heat exchanger described above.
Before fixing the heat source pipe 2 to the heat exchange plate 1, a strip-shaped plate 5 is installed in the center of the gap between the heat source pipes 2, and then a heat exchangeable foil 3 is placed.
Press down with a roller or spatula (Figure 5a). The width of the plate 5 is such that only the non-adhesive surfaces 4a of the adjacent foils 3 are on the plate 5. After that, by lifting the plate 5 upward, the fifth
As shown in FIG. 3, the non-adhesive surfaces 4a at both ends of the heat exchangeable foil 3 are raised to form fins 3a.
As a result, since the foil 3 is a flat plate, it does not take up space during storage, and since it is not necessary to form the fins 3a on the foil 3 in advance, no preliminary work is required.

Effects of the Invention As is clear from the above embodiments, the present invention forms fins by raising the non-adhesive surface of the foil by separating the plate from the foil, so the fins are also formed when the heat exchange plate and heat source pipe are fixed. Therefore, storage space and assembly workability can be improved by using flat foil.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a heat exchanger showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is a perspective view of a heat exchangeable foil, and Fig. 4 5A and 5B are a perspective view showing an example of the manufacturing method of the heat exchanger of the present invention, and a sectional view taken along the line BB in FIG. 4. 1... Heat exchange plate, 2... Heat source pipe, 3...
Foil, 3a... Fin, 4... Adhesive layer, 4a... Non-adhesive surface.

Claims (1)

[Claims] 1 Consisting of heat source pipes arranged at intervals on a heat exchange plate, a plate arranged between the heat source pipes, and a heat exchangeable foil that fixes the heat source pipes to the heat exchange plate, and this foil is formed in a flat plate shape by an adhesive layer that adheres to the heat source pipe and the heat exchange plate, and a non-adhesive surface that comes into contact with the plate,
A method for producing a heat exchanger, in which the non-adhesive surface of the foil is brought into contact with a plate by sandwiching the heat source pipe, and then the non-adhesive surface of the foil is raised to form fins by separating the plate from the heat exchange plate. .