JPS645192Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to the structure of a vacuum insulation panel that is inserted into the insulation wall of a refrigerator to improve the insulation effect, and in particular to the structure to improve its workability. It is something.

(Prior Art) A conventional vacuum insulation panel will be explained with reference to FIGS. 1 and 2. Figure 1 is a perspective view, and in the figure, 1 is a box panel made of metal plates, and 2 is a thermal conductivity of asbestos material, ceramic material, synthetic paper material, etc. inserted tightly into the inner surface of this box panel 1. The honeycomb component 3 is a sealed tube welded to one side of the box panel 1. The honeycomb component 3 is made of a small material.

FIG. 2 is a partially omitted perspective view of the honeycomb component 2, and reference numeral 4 indicates an exhaust hole provided in the wall surface of the honeycomb component 2 for evacuation. Note that this honeycomb component 2 is formed to be several mm shorter than the inner dimension of the box panel 1 in the direction of the sealing tube 3, and has a gap of several mm from the side inner surface where the sealing tube 3 is provided. ing. Then, the air inside the box panel 1 passes through the exhaust hole 4 of the honeycomb component 2, passes through a gap of several mm between the inside of the box panel 1 on the side of the sealed tube 3, and the honeycomb component 2, and then passes through the sealed tube 3. is evacuated by a vacuum pump (not shown). When the evacuation is completed, the sealing tube 3 is sealed to complete the vacuum insulation panel.

Since the vacuum insulation panel configured in this way has the honeycomb component 2 inserted inside, the thickness of the box panel 1 can be made thinner, which reduces the overall weight and makes it easier to handle. Moreover, since the thickness of the box panel 1 is reduced, the amount of heat conducted through the box panel 1 is reduced, and the heat insulation effect is improved, which is effective.

(Problem to be solved by the invention) However, in the vacuum insulation panel having such a structure, the gap between the inside of the box panel 1 on the side of the sealing pipe 3 and the honeycomb component 2 is narrow and long, so when evacuating The disadvantages were that the exhaust efficiency was poor and it took a long time.

This idea was made in view of the above drawbacks,
The purpose is to increase exhaust efficiency.

(Means for solving the problem) That is, this invention is a vacuum insulation panel in which a flat honeycomb component 2 is inserted in close contact with the inner surface of a flat box panel 1, and the inside is evacuated. In order to form a chamber when evacuating the inside of the body panel, a space 5 is provided on one side of the box panel 1 where the corresponding honeycomb component 2 is partially absent near the sealing pipe 3 on that side. It is characterized by:

(Function) During the exhaust process of the vacuum insulation panel configured as described above, the air inside the box panel 1 into which the honeycomb component 2 is inserted is discharged from the exhaust hole 4 of the honeycomb component 2 through the space 5. The sealing tube 3 is evacuated by a vacuum pump, and is sealed when the degree of vacuum reaches a predetermined value.

In this case, unlike the conventional honeycomb component 2, the space 5 has the function of a chamber, so the evacuation speed is increased, the processing steps for the vacuum insulation panel are short, and the vacuum insulation panel can be processed at low cost.

(Example) The details of this invention will be further explained below according to the illustrated example.

FIG. 3 is a partially omitted perspective view of the honeycomb component 2 showing an embodiment of this invention. In the figure, reference numeral 4 denotes an exhaust hole for evacuation provided on the wall surface of the honeycomb component 2, which is similar to the conventional one. Reference numeral 5 denotes a space on the side of the box panel corresponding to the side surface on which the sealing pipe 3 is provided, with a part of the honeycomb constituent material 2 not existing around the sealing pipe section. In addition, the dimension of the honeycomb constituent material 2 in the direction of the sealed tube is processed so as to be inscribed in the inner dimension of the box panel 1.

Other than the structure of this honeycomb component 2, it is the same as the conventional one.

FIG. 4 shows another embodiment of the honeycomb constituent material 2. In the above embodiment, round holes are provided in the wall surface of the honeycomb constituent material 2 to serve as exhaust holes. A similar function can be achieved by providing a V-shaped cutout. That is, in this figure, 6 is the honeycomb component 2
This is a V-shaped notch provided at the top and bottom of the wall surface of the panel, and when exhausting air during the processing process of the vacuum insulation panel, the air inside the honeycomb component 2 is sealed from the space 5 through this V-shaped notch 6. It is exhausted to the cut pipe 3.

(Effects of the invention) As explained above, this invention creates a vacuum insulation panel by forming a structure of a space 5 in which the honeycomb is partially absent in the vicinity of the sealing pipe 3 when looking at the honeycomb component 2 in a plan view. This has the effect of speeding up the pumping speed in the processing process, making it easier to manufacture vacuum insulation panels.

[Brief explanation of drawings]

Figure 1 is a perspective view of a conventional vacuum insulation panel, Figure 2 is a perspective view of a conventional vacuum insulation panel.
The figure is a perspective view of a conventional honeycomb component, FIG. 3 is a perspective view of a honeycomb component showing one embodiment of this invention, and FIG. 4 is a perspective view of a honeycomb component showing still another embodiment of this invention. It is. In the figure, 1 is a case, 2 is a honeycomb component, 3 is a sealed cut pipe, 4 is a round hole for exhaust in the honeycomb component, 5 is a space, and 6 is a V-shaped notch.
In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] In a vacuum insulation panel in which a flat box panel 1 has a sealed tube 3 on one side, a flat honeycomb component 2 is inserted in close contact with the inner surface of the panel, and the inside is evacuated. The honeycomb component 2 corresponding to one side of the panel 1 is a sealed cut pipe 3 on that side.
A vacuum insulation panel characterized by having a space 5 which is partially absent in the vicinity.