JPH08247632A - refrigerator - Google Patents

Abstract

(57) [Summary] [Purpose] Improve the serviceability of vacuum insulation materials used as insulation materials for refrigerators. [Structure] In a refrigerator using an on-site foamed heat insulating material 6 between an outer box 4 and an inner box 5 and between a door outer box 7 and a door inner plate 8, a vacuum heat insulating material 12 is provided at a place where it does not adhere to the foam heat insulating material 6. Refrigerator designed to be installed. [Effect] When an abnormality is found in the vacuum heat insulating material, it can be easily replaced, and the flow of the foam heat insulating material is not deteriorated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator using an in-situ foam insulating material between an outer box and an inner box and between an outer door box and an inner plate of a door. It relates to a refrigerator used together with.

[0002]

2. Description of the Related Art An example of a refrigerator using such a vacuum heat insulating material is shown in FIG. In the figure, 2
1 is a refrigerator main body, and this main body 21 is a box body 22, a door body 23,
In addition, it is composed of a refrigeration cycle 24 and the like. The box body 22 is composed of an outer box 25, an inner box 26, a heat insulating material 27 that is foamed in the field, and the like. 28 is a vacuum heat insulating material disposed in the foam heat insulating material 27 (note that this vacuum heat insulating material 28 is usually a core material coated with resin on both sides 10
wrapped in a film of μm order of aluminum, 10 internal ~ ^2-1
The vacuum degree is maintained up to 0 to ⁴ toor).

Therefore, the vacuum heat insulating material 28 is integrated with the foamed heat insulating material 27. Further, since the heat insulating property of the vacuum heat insulating material 28 is more than twice as good as that of the heat insulating material 27 foamed in the field, the heat insulating thickness between the outer box and the inner box can be reduced accordingly. The vacuum heat insulating material is generally used as a means for reducing the wall thickness as described above.

[0004]

The refrigerator of the type in which the vacuum heat insulating material is used in close contact with the in-situ foaming heat insulating material has the following problems.

(1) When the vacuum insulation material loses its heat insulation effect due to its poor service life, the refrigerator incorporating the vacuum insulation material can be repaired even if there is no abnormality in other equipment (refrigeration cycle, electrical equipment). It must be disposed of.

(2) If the vacuum heat insulating material is damaged during transportation of the refrigerator, it cannot be repaired like the above (1) and is discarded.

(3) Even when the vacuum heat insulating material is damaged during the assembly of the refrigerator, and it is incorporated without knowing it (1)
It was treated the same as the paragraph.

(4) Since the vacuum heat insulating material impedes the flow of the heat insulating material foamed in situ, a uniform foam cannot be formed.

[0009]

The present invention has been made to solve the above problems. As a concrete means, in a refrigerator that uses in-situ foamed insulation between the outer box and the inner box and between the door outer plate and the door inner plate, place a vacuum heat insulation material in a place where it does not adhere to the foam heat insulation material. It is designed to be installed. Specifically, a vacuum heat insulating material is provided in a place where the outer box or the inner box is recessed to the side of the foam heat insulating material, and the above vacuum heat insulating material and the foam heat insulating material are separated to improve serviceability and to improve the vacuum heat insulating material. Does not obstruct the flow when filling the foam insulation. Furthermore, the same effect as described above is obtained by providing a vacuum heat insulating material in a place where the door inner plate or the door outer plate is recessed toward the heat insulating material.

Furthermore, by using a vacuum heat insulating material as a heat insulating material in the partition wall that thermally partitions the rooms, the thickness of the heat insulating wall is greatly reduced, and the internal volume of the refrigerator is expanded. At the same time, the service can be handled.

Furthermore, a vacuum heat insulating material is used as a part of the heat insulating material that wraps the temperature controller (including the damper thermostat) so that the same effect as in the preceding paragraph can be obtained.

[0012]

[Function] In a refrigerator in which the foam insulation on the site is used between the outer box and the inner box and between the door outer plate and the door inner plate, a place where it does not adhere to the foam heat insulating material (inner box, outer box, door inner plate) Since the vacuum heat insulating material is placed in the place where the outer panel of the door is dented), if there is something wrong with the above vacuum heat insulating material, the refrigerator body is not discarded as in the conventional case, but the surface of the refrigerator is covered. It is easy to remove the plate etc. and replace the abnormal vacuum insulation with a new vacuum insulation without any abnormality. Moreover, as described above, the vacuum heat insulating material of the present invention is not arranged between the inner box and the outer box filled with the phenomenon-foaming heat insulating material or between the door outer plate and the door inner plate. By itself, it does not become a resistance at the time of forming the foam of the foamed heat insulating material. Of course, the inner box or outer box is recessed to the side of the heat insulating material, which will increase the resistance when forming the foam, but compared with the vacuum heat insulating material, the surface shape is originally smooth, so the shape when forming the foam The rate of obstacles is low.

[0013]

The details of the present invention will be described with reference to an embodiment shown in the drawings.

FIG. 1 is a vertical sectional view of a refrigerator box body provided with the present invention.

FIG. 2 is an enlarged explanatory view of a portion A of FIG.

FIG. 3 is an enlarged explanatory view of portion B of FIG.

FIG. 4 is a view showing a structure for attaching the vacuum heat insulating material to the recess of the inner box.

FIG. 5 is an enlarged explanatory view of portion C of FIG.

FIG. 6 is an enlarged explanatory view of a portion D of FIG.

FIG. 7 is an enlarged explanatory view of an E portion of FIG.

FIG. 8 is an enlarged explanatory view of the F portion of FIG.

FIG. 9 is an enlarged explanatory view of a G portion in FIG.

FIG. 10 is an enlarged explanatory view of the H portion of FIG.

First, in FIG. 1, 1 is a refrigerator main body, 2
Is a box, and 3 is a door. Thus, the box body 2 is composed of an outer box 4, an inner box 5, a heat insulating material 6 which is foamed on site.

The door body 3 includes a door outer plate 7 and a door inner plate 8,
Further, it is constituted by the foamed heat insulating material 6 and the like. 9 is a partition wall that thermally divides the refrigerating compartment 10 and the vegetable compartment 11, 12 is a vacuum heat insulating material (this vacuum heat insulating material 12 has the same structure as the vacuum heat insulating material described in the conventional example). Next, the attachment of the vacuum heat insulating material to the refrigerator body 1 will be described with reference to FIGS.

In the structure shown in FIG. 2, the inner box portion facing the compressor 13 constituting the refrigeration cycle is dented, and the vacuum heat insulating material 12 is used here to prevent heat from entering the vegetable compartment 11 from this portion. This is an example of trying to minimize. By doing so, heat can be efficiently shielded without increasing the wall thickness.

FIG. 3 shows an example in which the vacuum heat insulating material 12 is provided in the portion facing the fan motor 14 for cold air circulation. At this portion, the inner box is recessed for mounting the motor 14.
For this reason, as shown in the figure, the thickness of the heat insulating wall at this portion becomes smaller than that of other portions. Therefore, if the performance of the foamed heat insulating material 6 is satisfied, it is difficult to sufficiently block heat. In the present invention, the outer box 4 is recessed toward the heat insulating material 6 and the vacuum heat insulating material 12 is disposed therein.

FIG. 4 shows an example of attaching the vacuum heat insulating material 12 to the inner box 5, the outer box 4 or the like.
First, the double-faced tape 15 is attached to the recess 5a provided in the inner box 5, the vacuum heat insulating material 12 is temporarily fixed thereto, and then the cover plate 16 is provided.
It is an example in which the screw 17 is fixed and attached.

FIG. 5 shows a refrigerator 10 and a vegetable compartment 1.
The vacuum heat insulating material 12 is provided in the partition wall 9 that thermally divides the space. If a vacuum heat insulating material is provided here, it is possible to make the wall thickness thinner than that of foam heat insulating material (urethane foam, styrofoam). Since it is not in close contact with the heat insulating material 6, it can be easily attached and detached.

Although not shown in the figure, FIG. 6 shows an example in which the vacuum heat insulating material 12 is used as a part of the heat insulating material 6a (conventional styrofoam) that wraps the temperature controller or damper thermostat. is there. It goes without saying that even in this case, the same effect as when it is provided on the partition wall 9 can be obtained.

FIGS. 7 to 10 show examples of places where the vacuum heat insulating material is effectively used, and FIG. 7 shows an example provided at the bottom of the inner box near the compressor 13. Yes, Figure 8
The one shown in () is an example provided on the back side of the cooler 18.

Further, FIG. 9 shows an example in which a duct 19 for guiding cold air to the vegetable compartment 11 or the like is provided. In all of these, there is a large temperature difference between the inside of the refrigerator and the outside of the refrigerator compared to other places.

FIG. 10 shows a vacuum heat insulating material 1 on the door side.
2 shows an example in which 2 is provided. Also in this case, as described above, the door outer plate 7 or the door inner plate 8 is recessed toward the heat insulating material 6 in order to separate it from the foamed heat insulating material 6, and the vacuum heat insulating material 12 is disposed there. It is something that is done.

[0034]

As described above, according to the present invention, the vacuum heat insulating material is used in a place where it does not adhere to the foam heat insulating material and where it can be easily attached and detached from the outside. Of course, it is possible to contribute to the improvement of the inner volume by thinning the heat insulating material as in the conventional case.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a refrigerator box including the present invention.

FIG. 2 is an enlarged explanatory view of a portion A in FIG. 1;

FIG. 3 is an enlarged explanatory view of a B part in FIG. 1.

FIG. 4 is a view showing a structure for attaching a vacuum heat insulating material to a recess in an inner box.

FIG. 5 is an enlarged explanatory view of a C portion of FIG. 1.

FIG. 6 is an enlarged explanatory view of a D portion of FIG.

7 is an enlarged explanatory view of an E portion of FIG.

FIG. 8 is an enlarged explanatory view of an F portion of FIG.

9 is an enlarged explanatory view of a G portion in FIG.

FIG. 10 is an enlarged explanatory view of a portion H in FIG.

FIG. 11 is a vertical cross-sectional view of a refrigerator for explaining a conventional structure in which a vacuum heat insulating material is disposed in an in-situ foamed heat insulating material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Refrigerator main body, 2 ... Box body, 3 ... Door body, 4 ... Outer box, 5 ... Inner box, 6 ... Foam heat insulating material, 7 ... Door outer plate, 8 ... Door inner plate, 9 ... Partition wall, 10 ... Refrigerator room, 11 ... Vegetable room, 12 ... Vacuum heat insulating material, 13 ... Compressor, 14 ... Fan motor, 15 ... Double-sided tape, 16 ... Cover plate, 17 ... Screw, 18 ... Cooler, 19 ... Duct.

Claims (5)

[Claims] 1. In a refrigerator using an on-site foam insulation between an outer box and an inner box and between an outer panel of a door and an inner panel of a door, a vacuum heat insulating material is arranged at a place where it does not adhere to the foam heat insulating material. Refrigerator characterized by doing so. 2. A vacuum heat insulating material is provided in a place where the outer box or the inner box is recessed toward the foam heat insulating material.
Refrigerator described. 3. A vacuum heat insulating material is provided at a location where the door inner plate or the door outer plate is recessed toward the heat insulating material.
Refrigerator described. 4. A refrigerator characterized in that a vacuum heat insulating material is used as a heat insulating material in a partition wall that thermally partitions the rooms. 5. A refrigerator characterized in that a vacuum heat insulating material is used as a part of a heat insulating material for enclosing a temperature controller (including a damper thermostat).