JPS5930377Y2 - Boxes for refrigerators, etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure of a drawer portion of a condenser pipe in a refrigerator box.

The structure of the drawer part of the condenser piping in a conventional refrigerator box will be explained with reference to FIGS. 1 and 2.

Reference numeral 1 denotes an outer box having flanges bent inward on the front and back sides.

Reference numeral 2 denotes a back plate which is provided with side walls 2a rising outwardly to the left and right, and has a flange formed at its end to engage with the outer box 1.

3 is an inner box which forms 7 lunges projecting outward on the front surface.

4 is a heat insulating material, which is filled into the space formed by the outer box 1, the back plate 2, the inner box 3, etc.

Reference numeral 5 denotes a condenser pipe constituting the cooler, and the condenser piping is arranged at the engaging part of the flanges of the outer box 1 and the inner box 3, and its end is connected to the back plate 2.
Pull it outward.

Reference numeral 6 denotes a moisture absorber constituting the cooler, which removes moisture in the cooler.

A connecting pipe 7 connects the main condenser constituting the cooler and the condenser pipe 15.

A sealing material 8 closes the gap between the back plate 2 and the condenser pipe 5.

Reference numeral 9 denotes a decorative board, which is attached to the rear flange of the outer box 1 to improve the appearance quality of the rear part.

To construct this refrigerator box, first, the condenser pipe 5 is arranged on the front flange of the inner box 3, and the flange of the inner box 3 is engaged with the front flange of the outer box 1.

At this time, the end of the condenser pipe 5 is extended to the back side.

In this state, the condenser piping 5 is pulled out from the hole formed in the back wall of the back plate 2 to the end of the condenser pipe 5 on the back side, and the back flange of the outer box 1 and the 7 flange of the back plate 2 are engaged.

A gap between the back plate 2 and the condenser pipe 5 is closed with a sealing material 8.

After that, a space formed by the outer box 1, back plate 2, inner box 3, etc. is filled with a heat insulating material 4 such as rigid polyurethane foam.

When making a refrigerator using such a box, the moisture absorber 6 and the connecting pipe 7 are connected to the condenser pipe 5, and the main condenser,
A compressor, a cooler (both not shown), etc. are connected.

After that, the decorative board 9 is installed.

This decorative board 9 has the effect of improving the appearance quality of the back part and allowing air in the machine room to escape upward.

Since the condenser pipe 5 of such a refrigerator box extends to the back side, when connecting the moisture absorber 6 and the connecting pipe 7 to form a cooler, the inside of the end of the condenser pipe 5 must be removed. However, if this bending is done for the condenser piping 5 alone, it is difficult to pull it out from the two holes on the back plate to the back side, so it is usually a straight pipe and is bent in a post-drawing process.

If this bending work is performed on the condenser pipe 5 alone, it is possible to bend it with an automatic machine at the same time as other bending points.
In the case of post-processing, there is a lot of manual bending work, which reduces productivity.

In the case of bending using an automatic machine in the post-process, a separate automatic machine is required from that for bending a single item, and it also requires complicated equipment because it is necessary to correctly sense the position of the product when it is assembled. Due to the structure, etc., equipment costs are high.

In particular, the condenser piping 5 on the connection side with the moisture absorber 6 must be bent with enough allowance to prevent it from breaking due to excessive force when the moisture absorber 6 is fixed to the back plate 2. This results in a complicated bending shape, which promotes the above defects.

The present invention has been made to improve the above-mentioned defects.

-1 That is, by forming a draw-out hole for the condenser piping in the side wall of the back plate, productivity is improved and equipment costs are reduced.

The present invention will be explained below with reference to FIG.

The components are the same as those of the conventional example, and will be explained using the same reference numerals, but the condenser pipe 5 is formed with an inwardly bent portion 5a, and the side wall 2a of the back plate 2 is formed with a pull-out hole 2b. be.

To construct this refrigerator box, first, the condenser pipe 5 is arranged on the front flange of the inner box 3, and the flange of the inner box 3 is engaged with the front flange of the outer box 1.

Next, insert the back plate 2, but at this time open the outer box 1 outward.
The bent portion 5a of the condenser pipe 5 is passed through the pull-out hole 2b formed in the back plate 2 to the center side of the box body.

After that, the flange of the back surface 7 of the outer box 1 and the flange of the back plate 2 are engaged.

Thereafter, a refrigerator is formed in the same manner as in the conventional example.

In such a refrigerator box body, the bent part 5a formed in the condenser pipe 5 in advance is passed through the drawer hole 2b formed in the side wall of the back plate 2, and when the moisture absorber 6 and the connecting pipe 7 are joined, No bending required.

When forming the bent portion 5a of the condenser pipe 5, it is processed by an automatic machine at the same time as other bent portions.

Therefore, there is no bending work in the post-process, which improves productivity, and there is no need for automatic machines in the post-process, reducing equipment costs.

Even when the moisture absorber 6 is fixed to the back plate 2, the position of the pull-out hole 2b should be appropriately set, for example, the dimension B from the back wall of the back plate 2 to the pull-out hole 2b is approximately the same as the radius C of the moisture absorber 60. By adjusting the dimensions, bending in the subsequent process becomes unnecessary.

When pulling out the bent part 5a of the condenser pipe 5 from the draw-out hole 2b, the condenser pipe 5 may be damaged at the end of the draw-out hole 2b.In this case, by forming a flange 2c in the draw-out hole 2b, It can be prevented.

As described above, the present invention forms a draw-out hole in the side wall of the back plate, and pulls out the bent part of the condenser piping, which has been bent inward in advance, from the draw-out hole. The pull-out structure requires bending in the post-process, which reduces productivity and is effective in eliminating defects that require high equipment costs.

In addition, in the conventional structure, the moisture absorber connection part was complicated, which aggravated the above-mentioned defects, but in the present invention, this can be eliminated by making the position of the extraction hole and the radius of the moisture absorber approximately the same size.

According to this embodiment, by providing a flange on the extraction hole, it is possible to prevent the condenser piping from being damaged at the end face of the extraction hole.

[Brief explanation of the drawing]

Fig. 1 is a rear view of the refrigerator box, Fig. 2 is a view corresponding to the AA cross section of Fig. 1, showing the structure of the drawer part of the conventional condenser pipe, and Fig. 3 is the structure of the drawer part of the condenser pipe of the present invention. FIG. 2 is a cross-sectional view corresponding to A-A in FIG. 1; 1... Outer box, 2... Back plate, 3...
... Inner box, 4 ... Insulation material, 5 ... Condenser piping, 6 ... Moisture absorber, 7 ... Connection pipe, 8 ... ... Seal material, 9 ... Decorative board.

Claims (1)

[Scope of utility model registration request] The front flange portions of the outer box 1 and the inner box 3 are engaged, and the condenser piping 5 constituting the cooler is disposed in the engaged portion, and a side wall rising outward is provided on the back flange of the outer box 1. In a box body such as a refrigerator formed by engaging a back plate 2 having a back plate 2a and covering the back plate 2 with a decorative board 9, the condenser pipe 5 is supported on the side wall 2a of the back plate 2. A draw-out hole 2b with a portion 2c is formed so that its dimension from the rear wall is approximately the same as the radius of the moisture absorber 60, and an end of the condenser pipe 5 bent inward from the draw-out hole 2b is formed. A box for a refrigerator, etc., characterized by a large drawer.