JPS59217476A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a refrigerator in which a high-pressure refrigerant pipe forming a condenser of a cooling system is installed in an insulated box, and the heat dissipation of the high-pressure refrigerant pipe is not deteriorated even when installed in contact with a wall surface. It is meant to be.

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

In the figure, reference numeral 1 denotes a heat insulating box 2 with an open front, a heat insulating door 3 covering the front opening of the heat insulating box 2, and an electrical box.

This refrigerator is formed of a cooling system consisting of a dynamic compressor 4, a high-pressure refrigerant pipe 5, etc. that forms a condenser.

The heat insulating box body 2 includes an outer box 6 with an open front, and this outer box 6.
An inner box 7 and both boxes 6 that are also provided with an open front
, 7, and a heat insulating material 8 formed by foaming in place. The outer box 6 has both sides 9a.

9b and a back surface 9C are bent into a U-shape, a top plate 10 is welded to the upper opening edge of the bent plate 9, and a bottom plate 11 is similarly welded to the lower opening edge of the bent plate 9. ing. The bottom plate 11 is attached with a slight spacing from the floor of the installation surface of the refrigerator 1, and the machine room 12a that is this spacing is
The electric compressor 4 is installed in the machine room 12.
Ventilation openings 12 and 13 are formed at the bottom and lower front surface of a.

Numeral 14 is a leg attached to the bottom of the refrigerator, that is, the bottom of the bending plate 9. In addition, the lower part of the back surface of the bending plate 9 has a notch opening 1.
6 is formed and covered with a cover plate 16. This notch opening 15 serves as a work opening for installing and repairing the electric compressor 40. The cover plate 16 is attached to the back surface 9c with screws 17. 18 is the back surface 9c of the outer box 6
A duct is formed between the inner box 7 and the inner box 7, and is formed by a duct plate 19 across the width of the back surface 9c. Both ends of the duct plate 19 are attached to the back surface 9c, and a flange 2o is formed along the side surface 9a to form a gap 21 between the duct plate 19 and the side surface.
is formed. In addition, the duct plate 19 extends to the top plate 10 and the bottom plate 11 to form a vertically long duct 18, and this duct 18 is divided into three sections 18a and 1a.
A plurality of partition plates 22 are integrally formed so as to partition into sections b and 18c. The duct 18 communicates with the ventilation openings 12, 13 at the lower side, and communicates the upper side with the outside. The high-pressure refrigerant pipe 5 is connected to a corner portion of the outer box 6, that is, a side surface 9. A, 9b and the seven flanges 20 of the duct 1 plate 19 are provided in the gap 21, and a thermally conductive scene 23 is provided in the gap 21 between the grooves. The lower part of the duct 18b formed between the partition plates 22 communicates with the machine room 12a of the electric compressor 4.

In such, when the refrigerator is operated, the electric compressor 4 and the high pressure refrigerant vibro release heat. Then, the heat dissipated from the electric compressor 4 naturally convects and moves upward from the middle duct 18b and is discharged, and cooled air is sucked in through the ventilation openings 12 and 13 to cool the electric compressor 4. It is something. Furthermore, the heat radiated from the high-pressure refrigerant pipe 5 is transmitted to the side plates 9a, 9b and the duct plate 19, and is radiated outward, as well as to the left and right ducts 18a.
, 18c and dissipates the heat by moving the heat upward. Therefore, even if the refrigerator 1 is installed in a corner, the heat dissipation from the high-pressure refrigerant pipe 5 is carried out through the duct 18a or the duct 18.
Since heat is radiated through C, there is no drawback that the heat radiating ability of the high-pressure refrigerant pipe 5 is deteriorated and the ability of the cooling system is reduced. In addition, an electric compressor 4 and a high pressure refrigerant pipe 5
Since the heat dissipated does not pass through the ducts 18a, 1sb, and 18c and mix, the ambient temperature of the duct 18 does not rise more than necessary, so there is no adverse effect on the inside of the refrigerator. Furthermore, the outer box 6 is placed on both sides 9a,
A bent plate 9 formed by bending 9b and a back side 9C, and a top plate 1
o and the bottom plate 11, so even if the insulation material 8 leaks from the contact area between the duct plate 19 and the bent plate 9 to the duct side when foamed, it will not be visible from the outside, so the appearance will be similar to that of the base plate 11. It is something to do. Note that the same effect can be obtained even if the duct 18 is not reliably divided into three sections by the partition plate 22.

As is clear from the above embodiments, the present invention includes a heat insulating box formed by filling a heat insulating material between an outer box and an inner box, a refrigeration cycle installed in the bottom of the heat insulating box, and a refrigeration cycle installed at the bottom of the heat insulating box. A duct plate is arranged between the machine room containing the electric compressor, the outer box and the inner box, and is formed on the back side of the insulation box, and the lower end communicates with the machine room and the upper end communicates with the outside. and a high-pressure side refrigerant pipe of the refrigeration cycle provided in the gap between the end of the duct plate whose both ends are attached to the outer case and the outer surface of the outer case, and the duct is provided with a plurality of partition plates and connected to the center of the duct. Since only the duct is connected to the machine room, the heat of the electric compressor rises and is exhausted through the duct in the middle, and the heat of the high-pressure refrigerant pipe passes through the side plates and duct plate to the left and right sides. Since heat is radiated through the duct, the heat radiating effect of the high-pressure refrigerant pipe will not deteriorate even if it is installed close to a wall surface. Furthermore, by dividing the duct, the heat of the electric compressor and the heat of the high-pressure refrigerant pipe will not mix and have a thermal effect on the interior of the refrigerator.

[Brief explanation of the drawing]

Fig. 1 is a rear perspective view of a refrigerator according to an embodiment of the present invention, Fig. 2 is a vertical cross-sectional view with the door removed, Fig. 3 is a cross-sectional view with the door removed, and Fig. 4 is a rear view. 2...Insulating box body, 4...Electric compressor, 6
...High pressure refrigerant pipe, 6 ...Outer box, 7.
...Inner box, 9C...Back, 18...
...Duct, 19 ...Duct plate, 21...
Gap, 22...Partition plate. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure/ / Figure 2 Figure 3 Bukan, /7 \16

Claims (1)

[Claims] A heat insulating box body formed by filling a heat insulating material between the outer box and the inner box, a machine room installed at the bottom of the heat insulating box body and containing an electric compressor for the refrigeration cycle, and a space between the outer box and the inner box. A duct formed on the back side of the heat insulating box body by disposing a duct plate thereon and communicating the lower end with the machine room and the upper end with the outside, and the ends of the duct plate with both ends attached to the outer box. Equipped with a refrigerant pipe on the high pressure side of the refrigeration cycle installed in the gap on the outer surface of the outer box,
In the refrigerator, the duct has a plurality of eight plates, and only the middle duct communicates with the machine room.