JPS6145160B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a heat exchanger used in general air conditioners such as refrigerators and cooling/heating fan coil units.

[Conventional technology]

Conventional air heat exchangers include a finch tube type heat exchanger (Fig. 1) and a corrugated type heat exchanger (Fig. 2). 2 are integrally constructed by pouring a brazing filler metal or the like between them and brazing them together, and the latter is integrally constructed by brazing the fin 1 to the pipe 2 in the same manner as described above. Therefore, once the heat exchanger is assembled, it is impossible to remove the fins 1 from the pipes 2, so if dust or the like adheres to the surface of the fins 1, it is extremely difficult to clean it. However, it has the disadvantage of reducing heat exchange performance.

In order to solve these problems, there is a system in which a block-shaped fin is detachably attached to a pipe, as shown in, for example, Japanese Utility Model Publication No. 51-31707.

[Problem that the invention seeks to solve]

In the above-mentioned known heat exchanger, it is possible to attach and detach the block-shaped fins and the pipes, but it takes time and effort to attach and detach them, which is difficult to attach and detach very easily.

An object of the present invention is to provide a heat exchanger in which block-shaped fins and pipes can be attached and detached extremely easily.

[Means to solve the problem]

In the present invention, an elastic body is interposed within the fin block, and the elastic body is used to press the fin block against the pipe, so that the fin block can be attached to and removed from the pipe.

[Effect]

As described above, in the present invention, an elastic body is interposed within the fin block, and the elastic body is used to press the fin block against the pipe, thereby forming a heat exchanger. Therefore, the fin block can be easily installed by simply pushing it between the pipes, and the fin block can be easily attached and removed by simply pulling out the installed fin block from between the pipes. In these attachment and detachment,
Since it is in the form of a fin block, the time required for attachment and detachment is extremely short.

〔Example〕

Examples of the present invention will be described below.

In FIG. 3, 3 is a pipe formed in a meandering shape and a rectangular cross section, and 4 is a fin block detachably inserted between adjacent meandering portions of the pipe 3. As shown in FIG. 4, this fin block 4 is constructed by interposing a fin material 7 made of a wire-like metal wire between an upper fixing plate 5 and a lower fixing plate 6, which are disposed opposite to each other, and joining them together by brazing. It has a structure in which elastic materials such as springs 8a, 8b, etc. are embedded in the fin material 7 at appropriate intervals. With this configuration, the upper and lower fixing plates 5, 6 are connected to the springs 8a,
Since they are pressed against the pipe 3 by 8b..., both 5, 6, and 3 are brought into close contact with each other, so that a decrease in thermal conductivity can be prevented.

FIG. 5 shows another embodiment of the fin block, in which a fin material 7 made of a wire-like metal wire with a built-in spring 8 is interposed between a net-shaped upper fixing plate 9 and a net-shaped lower fixing plate 10. Upper fixed plate 9
The fin block 4a is constructed by providing fin materials 7a and 7b similar to those described above on the upper part of the fin block and the lower part of the lower fixing plate 10, respectively, and joining them together. With this structure, when the surface of the pipe 3 having a rectangular cross section (FIG. 3) is uneven, when the fin materials 7a and 7b are pressed against the pipe 3 by the force of the spring 8, the fin materials 7a and 7b
Since the fins 7a and 7b penetrate into the unevenness of the pipe 3, the fin materials 7a and 7b can be brought into even more airtight contact with the pipe 3.

FIG. 6 shows another embodiment of the fin block, in which the fin block 4b is constructed by arranging a large number of thin plate-shaped springs 8 between the upper and lower fixing plates 5 and 6 and joining them together. be. In this way, the structure can be simplified.

FIG. 7 shows another embodiment of the fin block.
A band-shaped part 14a in which part of the fin material is solidified at the lower part,
14b is provided to constitute the fin block 4d . Moreover, the lower band-shaped parts 14a and 14b serve the same role as the upper and lower fixing plates 5 and 6 of the above embodiment.

The fin material constituting the above-mentioned fin block is not limited to wire-like metal wires, but very thin metal foils, thin plastic plates, or wires can also be used depending on the purpose.

〔Effect of the invention〕

As explained above, according to the present invention, the heat exchanger is formed by interposing an elastic body within the fin block and pressing the fin block against the pipe using the elasticity of the elastic body. The block-shaped fins and the pipe can be attached and detached very easily.

[Brief explanation of the drawing]

Figures 1 and 2 are a perspective view and a front view of a conventional heat exchanger, Figure 3 is a perspective view showing an embodiment of the heat exchanger of the present invention, and Figures 4 and 5 are the same heat exchanger. Perspective view of the fin block used in the device, No. 6
FIG. 7 shows a front view and a perspective view of another embodiment of the fin block. 3...Pipe, 4...Fin block, 5...Upper fixing plate, 6...Lower fixing plate, 7...Fin material, 8...Spring, 9...Upper fixing plate, 10...Lower fixing plate, 4a, 4
b, 4d...Fin block, 7a, 7b...Fin material, 8a, 8b...Spring, 14a, 14b...
Band.

Claims (1)

[Claims] 1 In a heat exchanger with pipes and fins,
The fins are formed into blocks to form a plurality of fin blocks, and an elastic body is interposed within the fin blocks so that the elastic body presses the fin block against the pipe,
A heat exchanger characterized by the fact that the fin block is removable from the pipe.