JPH09144992A - Vacuum cell member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cell member useful as a heat insulating material and a sound proof material by evacuating the inside of closed cells formed on a plastic or glass base body and provided with space sealed parts whose peripheries are surrounded by the wall surface, or a continuous cell. SOLUTION: A plurality of closed cells 3 are formed on a plastic or glass base body 2, peripheries of respective closed cells 3 are surrounded with a wall surface of the plastic or glass base body 2 and formed of sealed spaces, and the insides of respective cells 3 are keep vacuum. To disclose an example of manufacture, upper and lower fusing extruding plastic materials 6 are pressurized and laminated by an upper metal mold 10 and a lower metal mold under vacuum. Since transfer and convection of heat by base body molecules can be prevented, the heat insulating effect and the soundproof effect are further improved, and a vacuum cell member is further useful as a heat insulating material and a soundproof material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cell member that can be used as a heat insulating material, a soundproofing material or the like.

[0002]

2. Description of the Related Art Plastic sponges are useful as heat insulating materials and soundproofing materials. The sponge is also called a foam and is characterized by having a large number of bubbles. The formation of bubbles is performed, for example, using a chemical agent, a so-called foam blowing agent, which generates a single gas or two or more kinds of gas by utilizing a chemical reaction. That is, the decomposed gas expands the resin molded product to form bubbles. There are various types of the foaming agent, and for example, there are those that generate nitrogen gas, carbon dioxide gas, and ammonia gas. Therefore, the sponge (foam) thus obtained contains a gas (gas) such as nitrogen gas inside its bubbles. In addition, under pressure, the inert gas is dissolved and absorbed in the plastic mixture, and a method of forming a foam by using the inert gas as a foaming agent under normal pressure, or a method of foaming the foaming material by mixing air to form a foamed latex, There is also a method of blowing gas into the resin in a high-pressure container such as an autoclave. In all of these methods, however, the gas (gas) is included inside the bubbles. Due to the presence of the bubbles, the foam is used as a refrigerating material or the like as a heat insulating material or the like utilizing its characteristics, and is also widely used as a soundproofing material for building materials or the like. The foam structure of the foam is a so-called open-cell structure in which cells spongely communicate with each other under normal pressure and a closed-cell structure in which a gas layer in which each bubble is independent even under pressure is present. It is known that there are things.

On the other hand, in the packaging field, a thin plastic film having a large number of convex portions resembling bubbles is laminated with the other plastic film on the back side.
Widely used as a cushion material. This one is
When a gas such as air is included in the inside of the convex portion and is used as a cushioning material, the convex portion serves as a cushioning effect, and the impact at the time of transporting the transported object is mitigated.

By the way, a vacuum adiabatic method is known as a heat insulating method utilizing the low thermal conductivity of low-pressure gas. For example, dewar bin, which is called a thermos bottle, is a typical one.Enclose the container that wants to block the heat input and output from the outside with a double wall, and maintain a high vacuum inside the double wall to keep the heat generated by gas molecules. It aims to eliminate the conduction and convection of. In addition, if a fine powder is packed between the double walls, the heat insulating effect can be improved even if the degree of vacuum is relatively low. Therefore, as a vacuum powder heat insulating method, the purpose is to keep cold instead of the conventional heat insulating material. Is used for.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such conventional techniques, and an object of the present invention is to provide a vacuum cell member useful as a heat insulating material, a sound insulating material, or the like. The above and other objects and novel features of the present invention will become apparent from the description of the present specification.

[0006]

DISCLOSURE OF THE INVENTION The present invention is a plastic or glass provided with one or more independent cells or continuous cells which are formed on a plastic or glass substrate and have a space sealing portion surrounded by wall surfaces. The present invention relates to a vacuum cell member, which is made of a member made of a material and has a vacuum inside the independent cell or continuous cell.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a vacuum cell member according to the present invention will be described with reference to the drawings. Embodiment 1 FIG. FIG. 1 (A) is a cross-sectional view of an essential part of a vacuum cell member showing an embodiment of the present invention, and FIGS. 1 (B) and 1 (C) are examples of manufacturing steps of the vacuum cell member showing an embodiment of the present invention. FIG. As shown in FIG. 1 (A), in an example of the vacuum cell member 1 according to the present invention, a plurality of independent cells 3 are formed on a plastic or glass substrate 2 and each independent cell 3 is formed.
Is surrounded by a wall surface made of a plastic or glass substrate 2 and is a closed space, and the inside of each cell 3 is maintained in a vacuum. The vacuum cell member 1 can be obtained by various methods. For example, as shown in FIG. 1B, the hopper 5 of the extruder 4 is shown.
A plastic material is further charged, melted, and the plastic material 6 having a semicircular recess is extruded. Although not shown in the figure, two extruders are prepared, and the other extruder is
Similarly, a plastic material having a semicircular recess is melt extruded. The melt extruded plastic material 6 is shown in FIG.
As shown in FIG. The vacuum device 7
At the vacuum pump 8, the recess 9 of each plastic material is
The gas inside is sucked, and the upper and lower plastic materials 6 are pressed by the upper mold 10 and the lower mold 11 as shown by the arrow to laminate them. The circular independent cell 3 formed by combining the semicircular recesses 9 of each plastic material is surrounded by the wall surface of the plastic material, is sealed, and is maintained in a vacuum. At the time of molding the vacuum cell member 1, the upper mold 10 and the lower mold 11 are also vacuum pumps 12, 13.
It is advisable that each of the plastic materials 6 is adsorbed to the upper mold 10 and the lower mold 11 to improve the positional accuracy of the semicircular recesses 9 with each other. Further, the upper mold 10 and the lower mold 11 may each be provided with a heater 14 so that the plastic material 6 is heated during the laminating process to facilitate the lamination. Examples of the plastic material include polyurethane, polyvinyl chloride, and polyester. A plasticizer, a stabilizer, a filler and the like can be added to the plastic material. Although it may be a thermoplastic resin or a thermosetting resin, a thermoplastic resin is preferable in consideration of moldability and the like. The said resin can be used 1 type (s) or 2 or more types. It may be made of foam.

Embodiment 2 FIG. Another embodiment of the present invention will be described with reference to FIG. 2A is a configuration diagram of a vacuum cell member showing another embodiment of the present invention, and FIG.
(A) A cross-sectional view of the vacuum cell member taken along the line I-I, FIG.
(C) is a configuration diagram of a vacuum cell member showing still another embodiment of the present invention, FIG. 2 (D) is a side view of the same, and FIG. 2 (E) is
It is sectional drawing of the vacuum cell member which shows another Example of this invention. In the embodiment shown in FIGS. 2A and 2B,
An example of a vacuum cell member 1 having a structure of continuous cells 3 communicating from the upper end to the lower end of a glass substrate 2 is shown. The inside of the continuous cell 3 is maintained in vacuum as in the above-mentioned embodiment. Sealing plugs 15 for holding a vacuum are attached to the upper end and the lower end, respectively. Instead of the hermetic plug 15, the end may be sealed by caulking or the like. . 2C and 2D are modified examples of the embodiment shown in FIGS. 2A and 2B, and have gas discharge ports 16 at one end and the other end of the vacuum cell member 1. After attaching the gas discharge part 17 to press the slidable stopper 19 to make a vacuum, and to make the inside of the continuous cell 3 a vacuum by the vacuum pump 18,
The slidable stopper 19 holds the vacuum, and if the vacuum becomes insufficient, the vacuum can be held again. Further, in this case, as shown in FIG. 2 (E), cold water, hot water, etc. 20 can be enclosed in the continuous cell 3 to be used as a heating mat, for example. Remove the enclosed cold water, hot water, etc. 20,
A vacuum may be applied again. Moreover, if fine powder is packed in the continuous cell 3, the heat insulating effect and the cold insulating effect can be improved even if the degree of vacuum is relatively low. In the vacuum cell member 1, for example, glass members 6 having two semicircular recesses are arranged vertically in a vacuum device 7 in the same manner as in the above-described embodiment, and gas in the continuous cell 3 is discharged. Meanwhile, it can be formed by pressing with or without an adhesive.

Embodiment 3. FIG. 3A is a configuration diagram of a vacuum cell member showing still another embodiment of the present invention. FIG.
In the embodiment shown in (A), a plurality of independent cells 3 are formed in a glass substrate 2, each of the independent cells 3 is surrounded by a wall surface and sealed, and the inside of each cell 3 is kept in a vacuum. An example of the vacuum cell member 1 that is shown is shown. The vacuum cell member 1 can be formed similarly to the vacuum cell member of the second embodiment. It goes without saying that a plastic member may be used instead of the glass member.

Examples 4 and 5. 3B and 3C are configuration diagrams of a vacuum cell member showing still another embodiment of the present invention. In the present invention, as shown in FIG. 3 (B), the inside of a plurality of honeycomb-shaped independent cells 3 is evacuated,
A honeycomb core-like vacuum cell member 1 in which plate members 21 are attached to the front and back surfaces of the cell 3 can be used, and a plurality of corrugations or rolls as shown in FIG. It is also possible to form a corrugated or roll core-like vacuum cell member 1 in which the inside of the cell 3 is evacuated and the plate members 21 are attached to the front and back surfaces of the cell 3.

Embodiment 6. FIG. 4A is a sectional view showing a modified example of the present invention. In the second embodiment, as shown in FIG.
As shown in (A), a plurality of cells 3 may be communicated with each other via a connecting portion 22, and the inside of these cells 3 may be maintained in vacuum.

Embodiment 7. FIG. 4 (B) is a configuration diagram of a vacuum cell member showing still another embodiment of the present invention, FIG. 4 (C).
FIG. 4B is a sectional view taken along line II-II of FIG. FIG.
In the embodiments shown in (B) and (C), the plastic film 6 is laminated on the back side of a thin plastic film 6 having a large number of convex portions 9 similar to the bubbles of a plastic sponge, and the inside of these independent cells 3 is It is a vacuum.

[0013]

EFFECTS OF THE INVENTION Unlike the case of a plastic sponge (foam), the inside of the independent cell or the continuous cell in the vacuum cell member of the present invention does not contain a gas (gas) such as nitrogen gas and is evacuated to a vacuum. Since heat conduction and convection due to gas molecules can be prevented, the heat insulating effect and the sound insulating effect can be further improved, and therefore, the heat insulating material and the sound insulating material can be further useful. In addition, the vacuum cell member of the present invention can be equipped with a gas discharge part as appropriate, and the inside of the cell can be evacuated by a vacuum pump. Moreover, cold water, hot water, etc. can be placed inside the independent cell or continuous cell. Can be enclosed, or fine powder or the like can be filled, whereby the heat insulating effect and the like can be improved. The vacuum cell member of the present invention is useful as a heat insulating material, a sound insulating material, and the like because of its good heat insulating effect, sound insulating effect, etc., and the field of packaging of home appliances such as refrigerators and freezers, building materials, food heat insulating containers, and clothing. It can be used in various fields such as fields, construction fields such as water pipes and gas pipes.

[Brief description of the drawings]

FIG. 1 (A) is a cross-sectional view of a main part of a vacuum cell member showing an embodiment of the present invention, and FIGS. 1 (B) and 1 (C) are views of a vacuum cell member showing an embodiment of the present invention, respectively. It is an explanatory view of an example of a manufacturing process.

FIG. 2 (A) is a configuration diagram of a vacuum cell member showing another embodiment of the present invention, and FIG. 2 (B) is a cross section of the vacuum cell member taken along the line II of FIG. 2 (A). FIG. 2 (C) is a configuration diagram of a vacuum cell member showing still another embodiment of the present invention, FIG.
2D is a side view of the same, and FIG. 2E is a sectional view of a vacuum cell member showing still another embodiment of the present invention.

FIG. 3 (A) is a configuration diagram of a vacuum cell member showing still another embodiment of the present invention, and FIGS. 3 (B) and 3 (C) show still another embodiment of the present invention. It is a block diagram of a vacuum cell member.

FIG. 4 (A) is a cross-sectional view showing a modified example of the present invention,
FIG. 4 (B) is a configuration diagram of a vacuum cell member showing still another embodiment of the present invention, and FIG. 4 (C) is FIG. 4 (B) II-I.
It is sectional drawing which follows the I line.

[Explanation of symbols]

 1 ... Vacuum cell member 2 ... Plastic or glass base 3 ... Independent cell or continuous cell 4 ... Extruder 5 ... Hop 6 ... Plastic material 7 ... Vacuum device 8 ... Vacuum pump 9 ... Concave 10 ... Upper mold 11 ... Bottom Mold 12 ... Vacuum pump 13 ... Vacuum pump 14 ... Heater 15 ... Sealing plug 16 ... Gas discharge port 17 ... Gas discharging part 18 ... Vacuum pump 19 ... Sealing plug 20 ... Enclosed cold water, hot water, etc. 21 ... Plate-like member 22 ... Connection Department

Claims (2)

[Claims] 1. A plastic or glass member provided with one or more independent cells or continuous cells formed on a plastic or glass substrate and having a space-sealed portion surrounded by wall surfaces. Alternatively, a vacuum cell member characterized in that the inside of the continuous cell is evacuated. 2. The vacuum cell member according to claim 1, wherein the independent cell or the continuous cell has a circular cross section.