JP2007032779A - Vacuum heat insulating material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material of high heat insulating effect by modularizing and arranging sealed bodies to easily make a thing, and improving a degree of freedom in a constitution of the sealed body. <P>SOLUTION: This vacuum heat insulating material 1 is constituted by modularizing the sealed body 2 and arranging the plurality of sealed bodies 2 on a base material 5, so that a combined body of the plurality of sealed bodies 2 is constituted as one heat insulating material. As the sealed bodies can be independently manufactured, a process can be simplified, its quality can be stabilized, and costs can be reduced, and further as the plurality of sealed bodies 2 are combined, the strength to the force in the thickness direction can be easily improved by synergic effect of strength of facing materials 3 of the sealed bodies 2, can be easily improved, thus the vacuum heat insulating material can be used on a part to which external force is applied, and its use application can be widened. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vacuum heat insulating material configuration used for improving the efficiency of equipment by heat insulation for reducing heat radiation of carpets and electric water heaters.

  The conventional vacuum insulation material is a vacuum insulation panel, which is made by covering a filler such as pearlite or white carbon with an exterior body such as stainless steel, aluminum foil, or plastic film, and exhausting the interior to a vacuum. . When such a vacuum heat insulating material is a panel, for example, the entire panel is configured as one room as shown in FIG. 5, and when the vacuum leaks due to scratches such as pinholes, Insulation performance is lost. Furthermore, since the panel cannot be cut even when the dimensions need to be adjusted, and the panel cannot be fixed by nailing or the like, there is a considerable limitation in using it as a building material. . Accordingly, a vacuum heat insulating material has been developed, which is composed of a sealed body in a low vacuum state in which a core part is enclosed in a jacket material, and the sealed body is divided into a plurality of sealed rooms. (For example, refer to Patent Document 1).

  As shown in FIG. 6, such a vacuum heat insulating material covers the core material portion 21 with a jacket material 22 to form a sealed body, and has a large number of heat-welded portions 23 so that the sealed body is divided into a plurality of sealed rooms. A large number of gaps exist between the sealed rooms.

  Since such a vacuum heat insulating material is composed of a large number of small rooms, it can be cut between the rooms, so that the dimensions of the heat insulating material can be easily adjusted.

In addition, even if the vacuum in one room leaks, the leak does not reach other places, so the durability performance is improved, and the vacuum heat insulating material can be fixed with nails or the like by a simple and inexpensive method. become able to.
Japanese Patent Laid-Open No. 7-139690

  However, as a method for manufacturing a sealed body of a vacuum heat insulating material, for example, a plurality of fillers contained in the above-mentioned interior material are arranged on a bag-shaped exterior material, and the boundary line is fused with a seal bar or the like to individually A plurality of fillers contained in the interior material are arranged on the sheet-like exterior material, and the sheet-like exterior material is covered from above, and each edge line and boundary line are heat-sealed. The process of sealing individual fillers contained in the interior material is complicated, and the interior material protrudes from the fused part, causing problems in terms of quality, which increases the cost. There was a problem.

  In addition, when considering the vacuum heat insulating material as a whole, since there are a large number of gaps that do not contain the sealing body 21, the coverage of the sealing body 21 is small, and the heat insulation effect may not be sufficiently obtained. In this case, there are more gaps where the sealing body 21 is not contained. In addition, the vacuum heat insulating material is weak against the force in the thickness direction and collapses when applied, and there is a concern that a sufficient heat insulating effect cannot be obtained.

  The present invention solves the above-mentioned conventional problems, and is configured so that the sealing bodies of vacuum heat insulating materials are arranged in a modular manner, making manufacturing easier, inexpensively configured, and freedom of sealing body configuration. The vacuum heat insulating material which improves a degree and has a high heat insulation effect is provided.

  In order to solve the above-described conventional problems, a vacuum heat insulating material according to the present invention is a vacuum heat insulating material including a sealing material in which a filler is enclosed in an exterior material and is in a low vacuum state. The sealing bodies are arranged on a base material, and a composite of a plurality of sealing bodies is configured as one heat insulating material, and each sealing body is configured to maintain a degree of vacuum individually.

  The vacuum heat insulating material of the present invention is configured such that the sealing body is modularized and a plurality of sealing bodies are arranged on a base material, and a composite of the plurality of sealing bodies becomes one heat insulating material. Since the body can be manufactured individually, the process is simplified, automation is facilitated, the quality is stable, and as a result, the cost can be reduced. Moreover, even if the vacuum insulation material is divided into a plurality of sealed rooms and the vacuum in one room leaks, the leak does not reach other places, and the durability performance is improved. Since each sealing body is individually configured, it is easy to bring the sealing bodies into close contact with each other, and the vacuum insulating material having a high heat insulating effect can be obtained by increasing the coverage of the sealing bodies. Furthermore, if the exterior material that forms the outer shell of the sealed body is configured to have a skeleton with a resin material having a high gas barrier property, a plurality of sealed bodies can be combined to easily form the exterior material of each sealed body. It can be improved by a synergistic effect of strength, and can be strengthened against the force in the thickness direction, and can be used in a portion to which an external force is applied, and the application can be expanded.

  The vacuum heat insulating material configuration of the present invention is a vacuum heat insulating material comprising a sealing body in which a filler is enclosed in an exterior material and is in a low vacuum state, and the sealing body is modularized to arrange a plurality of sealing bodies on a substrate. And it is comprised so that the composite of the some sealing body may become one heat insulating material.

  Then, the sealing body is modularized and a plurality of sealing bodies are arranged on a base material, and a composite of the plurality of sealing bodies is configured as one heat insulating material, and each sealing body individually has a degree of vacuum. Since each sealed body can be manufactured individually, the process becomes simple, automation is easy, the quality is stable, and as a result, the cost can be reduced. become able to. Moreover, even if the vacuum insulation material is divided into a plurality of sealed rooms and the vacuum in one room leaks, the leak does not reach other places, and the durability performance is improved. Since each sealing body is individually configured, it is easy to bring the sealing bodies into close contact with each other, and the vacuum insulating material having a high heat insulating effect can be obtained by increasing the coverage of the sealing bodies.

  In addition, since the sealing body is formed individually, it can be freely arranged on the base material, and the mounting position and shape of the object to be insulated, such as those having a curved surface and the setting of the nailing portion for mounting the vacuum insulation material, are free The degree of freedom in design is improved, the usability is improved, and the usage can be expanded.

  In the second invention, in particular, in the vacuum heat insulating material according to the first invention, the exterior material forming the outer shell of the sealed body is made of a resin material having a high gas barrier property, etc. It is comprised so that it may have.

  The vacuum insulation material is weak against the force in the thickness direction and collapses when applied, and there is a concern that the heat insulation effect cannot be obtained sufficiently, but the exterior material that forms the outer shell of the sealed body is a gas barrier property. When configured to have a skeleton with a high resin material, it is possible to easily improve the synergistic effect of the strength of the exterior material of each sealed body by combining multiple sealed bodies, and against the force in the thickness direction It can be strengthened, and it can be prevented from being crushed and a heat insulation effect cannot be obtained. It can be used also in a portion to which an external force is applied, and the application can be expanded.

  According to a third aspect of the present invention, in particular, in the vacuum heat insulating materials of the first and second aspects of the invention, the exterior material forming the outer shell of the sealed body has a trapezoidal cross-sectional shape and is disposed in proximity.

  When the vacuum heat insulating material is bent and used, the thickness of the vacuum heat insulating material differs between the inner and outer curvatures. For example, the side wall of the sealing body is provided close to the base material vertically. The adjacent sealing bodies interfere with each other and cannot be bent with the base portion side outward, and therefore, if the sealing bodies are arranged apart so as not to interfere, a gap is formed, and there When bent with the substrate portion side inward, the sealed body is separated, the gap becomes larger, the coverage is lowered, and the heat insulating effect is reduced.

  However, since the exterior material that forms the outer shell of the sealed body is arranged in the vicinity of a trapezoidal cross-sectional shape, it is adjacent by bending the base material side outward and the sealed body inward. The side walls of the sealing body are in close contact with each other, and a vacuum heat insulating material having a simple structure, easy to bend, and having a high heat insulating effect can be obtained by increasing the coverage of the sealing body. In addition, it is possible to easily deal with an object to be insulated having any curvature simply by changing the inclination angle of the side wall of the trapezoidal sealing body and preparing one that matches the curvature to be bent.

  According to a fourth aspect of the present invention, in the first to third aspects of the invention, there is provided a vacuum heat insulating material formed of a composite of a plurality of sealing bodies by modularizing the sealing bodies and arranging a plurality of sealing bodies on a substrate. A fixing means such as a fixing magnet is provided in part.

  And since a fixing means part such as a magnet for fixing is provided in a part of the vacuum heat insulating material formed of a composite of a plurality of sealed bodies, the heat insulating material fixing means part such as a magnet provides a vacuum heat insulating material. Easily attachable to the other party's insulation, improving workability, eliminating the need for nailing to secure the vacuum insulation, and preventing damage to the vacuum insulation due to nailing, etc. become.

  According to a fifth aspect of the invention, in particular, in the first to fourth aspects of the invention, the sealing body is modularized and a plurality of sealing bodies are arranged on a substrate, and both surfaces of a vacuum heat insulating material formed by a composite of a plurality of sealing bodies. A protective material is disposed on the surface.

  And since the protective material is provided on both sides of the vacuum heat insulating material formed of a composite of multiple sealed bodies, it is possible to keep a flat surface, so that things can be placed on the table legs, etc. The force from the outer periphery will not be applied directly to the vacuum insulation material with the material, the local force from the outer periphery will be dispersed in the protective material, the damage of the vacuum insulation material due to the local force can be reduced, and the durability will be improved Will be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view showing a schematic configuration of a vacuum heat insulating material according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view when the vacuum heat insulating material is bent and used.

As shown in FIG. 1 and FIG. 2, the sealing body 2 constituting the vacuum heat insulating material 1 is sealed after the core material 4 is inserted into the exterior material 3 formed of a resin material having a high gas barrier property, and the vacuum is made. It is configured. The outer packaging material 3 of the sealing body 2 has a trapezoidal cross section obtained by removing the tip portion thereof with a quadrangular pyramid, and has a predetermined strength so that the ridge is a skeleton. The bottom surface of the exterior material 3 of the body 2 is arranged and fixed on the base material 5 without a gap, and is arranged on the object to be insulated 6.

  Since the sealing bodies 2 forming the vacuum heat insulating material 1 are individually configured and divided into a plurality of sealed rooms, even if a vacuum in one room leaks, the leak extends to other parts. Therefore, the durability performance is improved.

  Here, as the core material 4 of the sealing body 2, open-cell bodies of polymer materials such as polystyrene and polyurethane, inorganic and organic powders, inorganic and organic fiber materials, and the like can be used.

  Among these, agglomerated silica powder, foamed perlite ground powder, diatomaceous earth powder, calcium silicate powder, calcium carbonate powder, inorganic powders such as clay and talc, and inorganic fibers such as glass wool and ceramic fibers are preferable. Is preferably 20 μm or less.

  In addition, the surface protective layer of the exterior material 3 is a stretched product such as nylon film, polyethylene terephthalate film or polypropylene, the gas barrier layer is a metal vapor deposition film, an inorganic vapor deposition film, a metal foil, or the like. A polyethylene film, a high density polyethylene film, an ethylene / vinyl alcohol copolymer resin film, a polypropylene film, a polyacrylonitrile film, an unstretched polyethylene terephthalate film, and the like can be used.

  Then, the sealing body 2 is modularized, and a plurality of sealing bodies 2 are arranged on the base material 5 so that a composite of the plurality of sealing bodies 2 becomes one heat insulating material. Since each of the sealing bodies 2 can be manufactured individually, the process is simplified, automation is facilitated, quality is stable, and cost is reduced. Can be made cheaper. Moreover, even if the vacuum heat insulating material 1 is divided into a plurality of sealed rooms and the vacuum in one room leaks, the leak does not reach other places, and the durability performance is improved. Since each sealing body 2 is individually configured, it is easy to make the sealing bodies 2 closely contact each other, and the vacuum insulating material 1 having a high heat insulating effect can be obtained by increasing the coverage of the sealing bodies 2. become.

  Furthermore, since the sealing body 2 is formed individually, it can be freely arranged on the base material 5, and the mounting position and shape of the object to be insulated, for example, the one having a curved surface or the setting of the nailing portion for mounting the vacuum heat insulating material The degree of freedom of design is improved, the usability is improved, and the usage can be expanded.

  Further, the vacuum heat insulating material 1 is weak against the force in the thickness direction and is crushed and there is a concern that the heat insulating effect cannot be sufficiently obtained, but the outer packaging material 3 that forms the outer shell of the sealed body 2. Is made of a resin material having a high gas barrier property so as to have a skeleton, by combining a plurality of sealing bodies 2, it can be easily improved by a synergistic effect of the strength of the exterior material 3 of each sealing body 2. It can be made strong against the force in the vertical direction, it can be prevented from collapsing and heat insulation effect can not be obtained, it can also be used in parts where external force is applied, and it can be used for a wide range of applications .

When the object to be insulated 6 is a curved surface and the vacuum heat insulating material 1 is bent and used, when the vacuum heat insulating material is bent and used, the inner and outer curvatures are different depending on the thickness of the vacuum heat insulating material. For example, if the side wall of the sealing body 2 is provided close to the base material 5 in the vertical direction, the adjacent sealing bodies 2 interfere with each other and cannot be bent with the base material 5 part side outside. For this reason, if the sealing body 2 is disposed apart so as not to interfere with it, a gap is generated. If the sealing body 2 is bent with the base portion 5 side inward, the sealing body 2 is separated and the clearance becomes larger. The rate is lowered and the heat insulation effect is diminished.

  However, since the exterior material 3 that forms the outer shell of the sealing body 2 has a trapezoidal cross-sectional shape and is disposed in the vicinity, the base material 5 side is bent outward and the sealing body 2 is bent inward. As a result, the side walls of the adjacent sealing bodies 2 are brought into close contact with each other, and a vacuum heat insulating material with a simple structure, which is easy to bend and has a high thermal insulation effect by increasing the coverage of the sealing body 2 can be obtained. In addition, it is possible to easily cope with an object to be insulated 6 having any curvature simply by changing the inclination angle of the side wall of the trapezoidal sealing body 2 and preparing one that matches the curvature to be bent.

  Although the sealing body 2 has a trapezoidal shape and the bottom surface is arranged and fixed to the base material 5 without any gaps, the exterior material 3 that forms the outer shell of the sealing body 2 as shown in FIG. The cross-sectional shape is a trapezoidal shape, and the upper and lower portions are alternately combined and positioned on a plane, and the side wall inclined surfaces of the trapezoidal exterior material 3 are in close contact with each other.

  According to this, the exterior material 3 that forms the outer shell of the sealing body 2 has a trapezoidal cross-sectional shape and is positioned on a plane by alternately combining the upper and lower sides. Since the inclined surface formed on the entire circumference of the side wall of the trapezoidal sealing body 2 becomes a guide surface and is pressed, the entire inclined surface around the side wall of the sealing body 2 can be easily adhered. The contact surface can be expanded, the gap between the sealing bodies 2 facing each other can be reduced, and the heat insulation effect can be further enhanced. In addition, even if some gaps are generated, the inclined surfaces facing each other can be complemented because there are overlapping portions, and the heat insulation effect can be maintained more.

  Note that a vacuum pump may be used as a means for evacuating the sealing body 2, or the sealing body 2 may be sealed after being heated to a high temperature to obtain a degree of vacuum.

(Embodiment 2)
FIG. 3 is a cross-sectional view showing a schematic configuration of the vacuum heat insulating material in Embodiment 2 of the present invention. In addition, about the structure similar to FIG. 1, the number similar to FIG. 1 is provided, and only a structure different from FIG. 1 is demonstrated.

  As shown in FIG. 3, the outer packaging material 3 of the sealing body 2 is a rectangular parallelepiped, and this bottom surface is arranged and fixed on the base material 5 without a gap, and the same material as the sealing body 2 is placed in an appropriate position on the base material 5. A fixing means portion 7 made of a magnet for fixing the shape is provided, a protective material 8 is provided on the opposite surface of the base material 5, and protective surfaces are provided on both surfaces of the vacuum heat insulating material.

  And since the exterior material 3 of the sealing body 2 is a rectangular parallelepiped, it can be arranged and fixed to the base material 5 without a gap with a simple configuration, and the sealing bodies 2 can be easily brought into close contact with each other. By increasing the coverage of the sealing body 2, a vacuum heat insulating material having a high heat insulating effect can be obtained.

  Further, since a fixing means portion 7 such as a fixing magnet is provided in a part of the vacuum heat insulating material formed of a composite of a plurality of sealing bodies 2, the fixing means portion 7 made of this magnet allows the vacuum heat insulating material to be Can be easily attached to the object to be insulated on the other side, improving workability, eliminating the need for nailing to fix the vacuum heat insulating material, and preventing damage to the vacuum heat insulating material due to nailing, etc. It becomes like this.

Furthermore, since there are protective surfaces on both sides of the vacuum heat insulating material formed of a composite of a plurality of sealing bodies 2, a flat surface can be maintained, and things can be placed on table legs, etc. The protective material 8 does not directly apply the force from the outer periphery to the vacuum heat insulating material 1, the local force from the outer periphery is dispersed by the protective material 8, and the damage of the vacuum heat insulating material due to the local force can be reduced. Can be improved.

  Although the sealing body 2 has a trapezoidal shape and the bottom surface is arranged and fixed to the base material 5 without any gaps, this is because the sealing body 2 has a trapezoidal shape, as shown in FIG. The side wall inclined surfaces of the trapezoidal exterior material 3 may be configured to be in close contact with each other.

  According to this, the exterior material 3 that forms the outer shell of the sealing body 2 has a trapezoidal cross-sectional shape and is positioned on a plane by alternately combining the upper and lower sides. Since the inclined surface formed on the entire circumference of the side wall of the trapezoidal sealing body 2 becomes a guide surface and is pressed, the entire inclined surface around the side wall of the sealing body 2 can be easily adhered. The contact surface can be expanded, the gap between the sealing bodies 2 facing each other can be reduced, and the heat insulation effect can be further enhanced. In addition, even if some gaps are generated, the inclined surfaces facing each other can be complemented because there are overlapping portions, and the heat insulation effect can be maintained more.

    Furthermore, although the Example of this invention demonstrated the structure which provided the sealing body 2 in the one side of the base material 5 part 2, this may be made into the structure which provided the sealing body 2 on both surfaces of the base material 5 part 2. In addition, a plurality of stages may be stacked, and the configuration of each part may be any configuration as long as the object of the present invention is achieved.

    As described above, the vacuum heat insulating material according to the present invention is configured so that the sealing bodies 2 are arranged in a modular manner, making manufacturing easier and inexpensive, and improving the degree of freedom of the sealing body 2 configuration. Thus, a vacuum heat insulating material having a high heat insulating effect can be obtained, and it can be applied to uses such as a heat insulating material for carpets and electric water heaters.

Sectional drawing which shows schematic structure of the vacuum heat insulating material in Embodiment 1 of this invention. Sectional view when the vacuum insulation is bent and used Sectional drawing which shows schematic structure of the vacuum heat insulating material in Embodiment 2 of this invention. Sectional drawing which shows the other example of the vacuum heat insulating material in Embodiment 2 of this invention. The figure which shows schematic structure in the conventional Example. The figure which shows schematic structure in the other conventional Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum heat insulating material 2 Sealing body 3 Exterior material 4 Core material 5 Base material 7 Fixing means part 8 Protective material

Claims (5)

  In a vacuum heat insulating material comprising a sealing body in which a filler is enclosed in an exterior material and is in a low vacuum state, the sealing body is modularized and a plurality of sealing bodies are arranged on a substrate, and a composite of a plurality of sealing bodies Is a vacuum heat insulating material configured to be one heat insulating material.   2. The vacuum according to claim 1, wherein the exterior material forming the outer shell of the sealed body is configured such that the exterior material forming the outer shell of the sealed body has a skeleton made of a resin material having a high gas barrier property. Insulation.   The vacuum heat insulating material heat material according to any one of claims 1 to 2, wherein the exterior material forming the outer shell of the sealing body has a cross-sectional shape in a trapezoidal shape and is disposed close to the exterior material.   The sealing body is modularized, a plurality of sealing bodies are arranged on a base material, and fixing means such as a fixing magnet is provided on a part of a vacuum heat insulating material formed of a composite of a plurality of sealing bodies. The vacuum heat insulating material structure of any one of Claims 1-3 characterized by the above-mentioned.   The sealing body is modularized, a plurality of sealing bodies are arranged on a base material, and protective materials are disposed on both sides of a vacuum heat insulating material formed of a composite of a plurality of sealing bodies. The vacuum heat insulating material structure of any one of 1-4.