JPS5953460B2 - refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention can be applied to, for example, a refrigeration unit. Regarding refrigerators in which a high-temperature refrigerant pipe, which is part of the compressor, is placed in the front opening of the refrigerator and used to prevent condensation, the expansion of the deformed refrigerant pipe is particularly effective in maintaining the outer and inner boxes and improving heat conduction. The purpose is to help improve.

An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a refrigerator body, which is composed of an outer box 2, an inner box 3, and a foamed heat insulating material 4 filled between the boxes 2 and 3.

The outer box 2 has double front and rear flanges 5 around the front opening.
, 6 and the connecting piece 5a between both flanges is connected to the concave groove 5b.
is formed f'.

The rear flange 6 is bent into a substantially dogleg shape and has an apex 6a.

The inner box 3 also has a flange 7 formed on the edge of the front opening layer, and the two boxes 2 and 3 are joined by superimposing this flange 7 on the back surface of the front 7 flange 5 of the outer box 2. There is.

This connection is performed by inserting the high-pressure side refrigerant pipe 8, which is part of a normal refrigeration unit that has been previously deformed into an irregular shape, into the gap 2' between the side surface 2a of the outer box 2 and the connecting piece 5a, and then Insert the flange 7 into the gap 5' between the front and rear flanges 5 and 6 of the outer box 2 (Fig. 2).

Next, the refrigerant pipe 8 that has been deformed into an unusual shape is expanded using air pressure or the like. At this time, as the refrigerant pipe 8 is expanded, the rear flange 6 bends toward the front flange 5, and the flange 7 of the inner box 3 is bent by the apex 6a. It pushes up and comes into close contact with the back side of the front flange 5, thereby establishing the retention between the front flange 5, rear flange 6 of the outer box 2 and the flange 7 of the inner box, and also creates two seal lines on the back and front side. This reduces leakage when filling the heat insulating material 4.

As is clear from the above description, the present invention can utilize the expansion force of a refrigerant tube that has been previously deformed into an irregular shape to maintain the outer and inner boxes and to improve heat conduction.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a refrigerator according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view taken along line II-II' in Fig. 1 before pipe expansion, and Fig. 3 is an enlarged sectional view after pipe expansion. be. 2...Outer box, 3...Inner box, 4...
...Insulating material, 5b ... Concave groove, 7 ... Flange, 8 ... Refrigerant pipe.

Claims (1)

[Claims] 1 In a device comprising an outer box, an inner box inside the outer box, a foam-filled insulation material between the inner and outer boxes, and a refrigeration unit, a groove formed on the periphery of the front opening of the outer box, The flange of the inner box that is inserted into the groove, and the flange that forms part of the refrigeration unit and is deformed and installed around the front opening of the outer box,
The refrigerator further includes a refrigerant pipe that connects the flange and the groove by expanding the pipe.