JPS62196586A - 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 Field of Industrial Application The present invention provides a method in which a part of a condenser is disposed in a groove formed in a front flange part of an outer box forming a heat insulating box, and the heat radiation effect of the part is used to dissipate heat. This invention relates to a refrigerator designed to prevent condensation.

BACKGROUND OF THE INVENTION In recent years, as a means of preventing dew condensation on the front flange of an outer box of a refrigerator, a part of a condenser constituting a cooling device has often been disposed in a groove formed in the front flange.

An example of a structure in which a condenser pipe is disposed in a groove on the front surface of a conventional refrigerator will be described below with reference to the drawings in FIGS. 3 and 4. Reference numeral 1 denotes a refrigerator body, which is composed of an outer box 2, an inner box 3 made of synthetic resin, and a foamed heat insulating material 4 filled between the boxes 2 and 3. Reference numeral 5 denotes a substantially U-shaped groove provided in the front flange portion 6 of the outer box 2, into which the condenser piping 7 and the front flange 8 of the inner box 3 are inserted. 9 is a sealing heat insulating material for preventing leakage of the foam heat insulating material 4. 1° is a thermally conductive filler to improve heat conduction between the U-shaped bottom surface 11 of the groove 6 and the side surface 12 of the outer box 2, and is filled before injecting the foam insulation material 4. Then, the foamed heat insulating material 4 flows into the bottom part 11 of the groove 5 and the side part 12 of the outer box 2, and the foamed insulation material 4 flows into the bottom part 11 of the groove 5 and the side part 12 of the outer box 2.
In addition to preventing heat conduction from becoming poor between the outer box 2 and the side surface 12, the heat from the condenser pipe 7 is conducted through the thermally conductive filler 10 and is effectively dissipated from the side surface 12 of the outer box 2. This increases the heat dissipation efficiency of the condenser pipe 7. Reference numeral 13 denotes a door gasket, which is installed around the refrigerator door (not shown) and brought into close contact with the front flange portion 6 of the outer box 2 to partition the inside and outside of the refrigerator.

Problems to be Solved by the Invention However, in the above configuration, since the cross-sectional shape of the condenser pipe 7 is cylindrical, there is relatively good contact with the bottom surface 11 of the groove 6; 5, and the sealing heat insulating material 9 is in contact with the surface of the condenser piping 7 on the front flange 8 side of the inner box 2. Since the heat cannot be conducted to the front flange portion 6 and side surface portion 12 of the box 2, there is a problem in that a sufficient heat dissipation effect cannot be obtained.

In addition, since the condenser piping is placed on the front flange 8 side of the outer box 2, the heat of the condenser piping 7 increases the temperature of the front flange 8 facing the door gasket 13, causing heat to flow into the refrigerator. This has resulted in problems such as increased influence and increased power consumption.

In view of the above-mentioned problems, the present invention moves the condenser pipe 7 away from the door gasket 13 without significantly changing the conventional assembly method, thereby reducing the influence of heat on the inside of the refrigerator. The heat is effectively applied to the side surface 1 of the outer box 2.
This makes it possible to increase the heat dissipation efficiency of the condenser piping.

Means for Solving the Problems In order to solve the above problems, the present invention makes the width of the groove in the front flange of the outer box at least twice the outer diameter of the condenser piping, and uses foam insulation material for the condenser piping. A sealing heat insulating material is installed at the corner of the bottom of the concave groove facing the groove, a good conductive material is integrally formed in the concave part of the abbreviated compressible heat insulating material, and the entire circumference is covered with a thin material. The condenser pipe is inserted into the concave groove, and the condenser pipe is fixed by pressure with a sealing heat insulating material with good conductivity, and a compressible heat insulating material is interposed between the condenser pipe and the front flange of the outer box. It is something.

Effects According to the present invention, with the above-described configuration, the heat of the condenser piping is conducted through the conductive member and is efficiently conducted to the side surface of the outer box, so that the heat dissipation efficiency from the condenser piping can be improved.

Furthermore, since the heat of the condenser piping is insulated by the heat insulating material of the sealing heat insulating material, it is possible to prevent the temperature of the front flange portion of the outer box from rising, so that the influence of heat on the inside of the refrigerator can be reduced.

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

Components that are the same as those in the conventional example are given the same numbers and their explanations will be omitted. In Fig. 1, 14 is a heat insulating material for sealing.
15 is an abbreviated compressible heat insulating material, 16 is a conductive member made of steel wool, and 17 is a thin member made of a very thin film. The sealing heat insulating material 14 is
A conductive member 16 is integrally formed in the concave portion of the compressible heat insulating material 15, and the entire circumference is covered with a thin member 17. 186, -5 is a groove provided in the front flange portion 6 of the outer box 2.

The width l of the groove 18 is set to be at least twice the outer diameter of the condenser pipe 7. Reference numeral 19 denotes a thermally conductive filler, which connects the side surface 20 of the groove 18 and the side surface 1 of the outer box 2 with which the thermally conductive member 16 is in contact.
It is filled between the two. The condenser pipe 7 is inserted into the bottom corner portion 21 of the groove 18 and is fixed by pressure contact with the conductive member 16.

Next, the method for forming the above structure will be described in detail. First, the outer box 2 is placed so that the front flange portion 6 of the outer box 2 is on the upper side. Then, the side surface 2° of the groove 18 and the side surface 1 of the outer box 2
A thermally conductive filler 19 is filled between the two. Next, after inserting the condenser pipe 7 into the groove 18, the sealing heat insulating material 14 is inserted, and the condenser pipe 7 is pressed and fixed to the bottom corner part 21 of the groove 18 with the good conductivity member 16. . Thereafter, the front flange 8 of the inner box 3 is inserted between the sealing heat insulating material 14 and the front flange 6 of the outer box 2, and the space formed by the outer box 2 and the inner box 3 is filled with foamed heat insulating material 4. Form the refrigerator body.

As described above, according to this embodiment, the front surface 7 of the outer box 2 and the groove 18 into which the condenser pipe 7 is inserted are provided on the flange portion 6.
The width l of the condenser pipe 7 is set to be at least twice the outer diameter of the condenser pipe 7, and the condenser pipe 7 is installed at the bottom corner of the concave groove facing the foam insulation material 4, and the compressible heat insulation material 15 and the compressible Insulation material 16
A sealing heat insulating material 14, which is formed by integrally forming a good conductive member 16 in the recessed part and covered with a thin member all around, is inserted into the recessed groove 18,
By fixing the condenser pipe 7 under pressure with the good conductivity member 16 of the sealing heat insulating material 14 and interposing the compressible heat insulating material 15 between the condenser pipe 7 and the front flange portion 6 of the outer box 2, the condenser The heat of the pipe 7 is transferred from the thermally conductive member 16 to the side surface 2o of the groove 18 to the thermally conductive filler 19 to the side surface 12 of the outer box 2.
As a result, the heat dissipation efficiency of the condenser piping 7 can be improved.

Further, the heat of the condenser pipe 7 is insulated by the compressible heat insulating material 15, and a rise in temperature of the front flange portion 6 of the outer box 2 can be prevented, so that the influence of heat on the inside of the refrigerator is reduced, and power consumption can be reduced. Furthermore, since the entire circumference of the sealing heat insulating material 14 is covered with a thin member, the surface of the outer box 2 will not be damaged when inserted into the groove 18, and moisture will not enter the thermally conductive member 14. Therefore, there is no risk of corrosion etc.

Effects of the Invention As described above, the present invention comprises an outer box, an inner box inside the outer box, and a foamed heat insulating material filled and foamed between the inner and outer boxes to form a heat insulating box. A groove with a width at least twice the outside diameter of the condenser piping provided in the inner box, a front flange of the inner box inserted into this groove, and a corner of the bottom of the groove facing the foam insulation material. This consists of a condenser pipe with a circular cross section that forms part of the condenser, an abbreviated compressible heat insulator inserted into the groove, and a conductive member integrally formed in the recess of the compressible heat insulator. Equipped with a sealing heat insulating material made of a thin-walled material covering the entire circumference, and a thermally conductive filler filled between the side surface of the groove and the side surface of the outer box, heat from the condenser piping is efficiently transferred to the outer box. The heat dissipation efficiency of the condenser piping can be increased because it can be conducted to the side surfaces of the condenser. In addition, the heat of the condenser piping is insulated by the compressible heat insulating material, and a temperature rise 91 at the front flange of the outer box can be prevented, so the influence of heat on the inside of the refrigerator can be reduced, and power consumption can be reduced.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a sealing heat insulating material for a refrigerator according to an embodiment of the present invention, FIG. 2 is a sectional view of essential parts of a refrigerator according to an embodiment of the present invention, and FIG. 3 is a perspective view of a conventional refrigerator. Figure 4 is a cross-sectional view taken along the line ■-■' in Figure 3.
...Inner box, 4...Foam insulation material, 6...
...Front flange section, 7...Condenser piping, 8
...Front flange, 12 ... Side part of outer box, 14 ... Seal insulation material, 15 ...
... Compressible heat insulating material, 16 ... Good conductive member, 17
... Thin wall member, 18 ... Concave groove, 19.
...Thermal conductivity member, 20... Side part of the groove, 21... Corner part. Name of agent: Patent attorney Satoshi Nakao and one other person 'q'/
)'-Ob Hesaaki Fumi

Claims (1)

[Claims] an outer box, an inner box inside the outer box, a foam insulation material filled between the inner and outer boxes, and a groove having a width twice or more the outer diameter of the condenser piping provided on the front flange of the outer box. The front flange of the inner box is inserted into this groove, the condenser piping with a circular cross section that forms part of the condenser is inserted into the corner of the bottom of the groove facing the foam insulation, and the condenser piping is inserted into the groove. It consists of an approximately L-shaped compressible heat insulating material to be inserted, a good conductive member integrally formed in the recess of the compressible heat insulating material, and a sealing heat insulating material whose entire circumference is covered with a thin member, and a sealing heat insulating material in the recessed groove. A refrigerator comprising a thermally conductive filler filled between a side part and a side part of an outer box.