JP2005299697A - Vacuum thermal insulation panel and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum thermal insulation panel and its manufacturing method for easily manufacturing the smooth vacuum thermal insulation panel having constant thickness and vacuum thermal insulation panels having different sizes without requiring a mold and protecting and reinforcing a vacuum thermal insulation material. <P>SOLUTION: This vacuum thermal insulation panel 10 covering the vacuum thermal insulation material 11 with a foaming body is constituted by forming a recessed part 13 for mounting the vacuum thermal insulation material 11 in the thermal insulation foaming body 12 and providing a protection/reinforcing part 15 for protecting and reinforcing the vacuum thermal insulation material 11 in a bottom part 14 of the recessed part. Consequently, the recssed part 13 is formed in the thermal insulation foaming body 12, and the vacuum thermal insulation material 11 is mounted to realize uniform thickness of a vacuum thermal insulation material 11 part and other thermal insulation foaming body 12 part and make them smooth in order to manufacture panels having different sizes without using a mold easily. Since the bottom part 14 of the recessed part is used as the protection/reinforcing part 15, the vacuum thermal insulation material 11 is protected and reinforced to prevent its damage. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vacuum heat insulation panel and a method for producing the same, and can easily produce a vacuum insulation panel having a constant thickness and a smooth vacuum insulation panel with different thicknesses embedded in a heat insulation foam, It is designed to protect and reinforce the embedded vacuum heat insulating material, and is suitable as a panel that requires high heat insulation such as heat insulation of a building and a manufacturing method thereof.

  Conventionally, heat insulating materials and heat insulating panels that integrate heat insulating materials and panels have been used in various fields. For example, glass wool is used for heat insulation of buildings, and synthetic resins such as rigid urethane foam with better heat insulation performance. Foam is used, and a heat insulating panel in which face materials are laminated on both sides of a synthetic resin foam is used.

  In recent years, due to the increasing demand for high airtightness and high heat insulation in order to save energy in buildings such as houses, in order to further improve the heat insulation performance of heat insulation panels, the thickness of the heat insulation layer must be increased. In other words, space and construction problems occur.

  Then, the vacuum heat insulation panel using the vacuum heat insulating material excellent in heat insulation performance compared with the synthetic resin foam is proposed, for example, in patent document 1, as a heat insulation panel which can be used for a building, as shown in FIG. Further, a structure in which a plurality of vacuum heat insulating materials 2 are covered with a foamed synthetic resin 3 is disclosed.

  The heat insulation panel 1 has a spacer (not shown) attached to the vacuum heat insulating material 2 in advance, and the face materials 4 and 5 are attached via the spacer, and a predetermined space is provided between the vacuum heat insulating material 2 and the face materials 4 and 5. It is manufactured by providing an interval space and filling this space with a foamed synthetic resin 3 such as a rigid polyurethane foam.

  Moreover, as a manufacturing method of the composite heat insulating material which consists of heat insulating materials, such as a vacuum heat insulating material and foaming synthetic resin, in patent document 2, a vacuum heat insulating material and a heat insulating material are created separately beforehand, and it adheres with an adhesive agent. It is disclosed that it is manufactured or manufactured by setting a vacuum heat insulating material in a mold and injecting a resin as a heat insulating material into the mold.

Similarly, in Patent Document 3, insert molding is performed when a heat insulating material is formed, and a vacuum heat insulating material is embedded in the heat insulating material, or a recess is formed when the heat insulating material is formed. It is disclosed that a heat insulating panel is manufactured by dropping a vacuum heat insulating material and attaching it by bonding or the like.
Japanese Patent Laid-Open No. 10-211985 JP-A-11-63375 Japanese Patent Laid-Open No. 10-114245

  However, in the case of manufacturing a vacuum heat insulation panel in which such a vacuum heat insulating material is covered with a heat insulating material such as a synthetic resin foam, the face material set in the mold and the vacuum heat insulating material are mainly used in the conventional injection method. The foam material of synthetic resin foam must be injected into a narrow space, and it is necessary to attach it to the mold and remove it from the mold, making the manufacturing process complicated, and the air in the space may not escape sufficiently There is a problem that voids are generated in the synthetic resin foam of the completed heat insulation panel.

  Furthermore, in the injection method, a mold in which the face material and the vacuum heat insulating material are attached in advance is necessary, and a heat insulating panel having a size corresponding to the mold can be manufactured, but when trying to manufacture a heat insulating panel having a different size, There is a problem that a mold corresponding to each size must be prepared.

  In addition, when the vacuum heat insulating material and the heat insulating material of Patent Document 2 are separately prepared in advance and manufactured by bonding with an adhesive, it is easy to manufacture a panel having the same size as the vacuum heat insulating material. However, there is a problem in that many steps are required when manufacturing a panel having a certain thickness in which the vacuum heat insulating material is disposed in a part of the heat insulating material.

  Furthermore, as in Patent Document 3, when forming a heat insulating material, a recess is formed, and after manufacturing the vacuum heat insulating material by dropping and attaching it to manufacture, There is a problem that a mold having a recess is required, and many molds must be prepared for manufacturing panels having different sizes.

  In addition, in the case of a vacuum insulation panel in which a vacuum insulation material is embedded in the heat insulation body, the vacuum insulation material portion embedded in the interior of the vacuum insulation material can be sufficiently secured compared to the surrounding insulation body portion, but the vacuum insulation material If it is scratched, the heat insulation performance will be lost, so when it is used for building insulation, it protects the vacuum insulation from external forces and damages. There is a problem that must be prevented.

  The present invention has been made in view of the above-mentioned problems of the prior art, and can easily manufacture a vacuum insulation panel having a uniform thickness and a smooth thickness or a vacuum insulation panel having a different size without requiring a mold. At the same time, it is an object of the present invention to provide a vacuum heat insulating panel that can protect and reinforce a vacuum heat insulating material and a method for manufacturing the same.

  In order to solve the above problems, a vacuum heat insulation panel according to claim 1 of the present invention is a vacuum heat insulation panel in which a vacuum heat insulation material is covered with a foam, and a recess for mounting the vacuum heat insulation material on the heat insulation foam is formed. In addition, a protective / reinforcing portion for protecting and reinforcing the vacuum heat insulating material is provided on the concave bottom portion.

  According to this vacuum heat insulation panel, the vacuum heat insulation panel in which the vacuum heat insulation material is covered with the foam is formed, and the concave portion for mounting the vacuum heat insulation material on the heat insulation foam is formed, and the vacuum heat insulation material is protected on the concave bottom portion. Constructed with a protective and reinforcing part to reinforce, forming a recess in the heat insulating foam, and attaching a vacuum heat insulating material to this, uniform thickness of the vacuum heat insulating material part and other heat insulating foam parts Panels with different sizes can be easily manufactured without using a mold, and the concave bottom can be used as a protective / reinforcing part to protect and reinforce the vacuum insulation and prevent damage. It becomes like this.

  A vacuum heat insulation panel according to claim 2 of the present invention is characterized in that, in addition to the structure according to claim 1, the protection / reinforcement portion is formed by increasing the density of the heat insulation foam. is there.

  According to this vacuum heat insulation panel, the protective / reinforcing part is formed by increasing the density of the heat insulating foam, and the density of the heat insulating foam is increased to increase the strength and protect / reinforce the vacuum heat insulating material. The lowering of the heat insulation performance by increasing the density ensures that the vacuum heat insulation part has a sufficiently high heat insulation performance compared to the other parts. We are trying to achieve both.

  Furthermore, the manufacturing method of the vacuum heat insulation panel of Claim 3 of this invention WHEREIN: When manufacturing the vacuum heat insulation panel which covered the vacuum heat insulating material with the foam, in the heat insulation foam formed in the magnitude | size of the said vacuum heat insulation panel, After forming a recess for containing the vacuum heat insulating material, and forming a protective / reinforcing portion for protecting and reinforcing the vacuum heat insulating material by increasing the density of the concave bottom portion, the vacuum heat insulating material is mounted and fixed in the concave portion. It is characterized by doing so.

  According to the method for manufacturing a vacuum heat insulating panel, when manufacturing a vacuum heat insulating panel in which the vacuum heat insulating material is covered with a foam, the concave portion into which the vacuum heat insulating material enters the heat insulating foam formed in the size of the vacuum heat insulating panel. And forming a protective / reinforcing part that protects and reinforces the vacuum heat insulating material by increasing the density of the concave bottom part, and then mounting and fixing the vacuum heat insulating material in the concave part. By forming a recess in the body and attaching a vacuum heat insulating material to it, the thickness of the vacuum heat insulating material part and other heat insulating foam parts are uniform and smooth, and panels with different sizes do not use molds In addition to being able to be manufactured easily, by making the concave bottom part a protective / reinforcing part, the vacuum heat insulating material can be protected and reinforced, and damage can be prevented.

  According to a fourth aspect of the present invention, in addition to the configuration of the third aspect, the vacuum insulating panel manufacturing method is formed by compressing and molding the heat insulating foamed body, and the protective and reinforcing portions of the concave portion and the concave bottom portion. In addition, the depth of the recess is formed to a depth obtained by adding elastic deformation to the thickness of the vacuum heat insulating material so that the surface of the vacuum heat insulating material and the surface of the heat insulating foam are flush with each other. It is characterized by that.

  According to this method for manufacturing a vacuum heat insulating panel, the concave portion and the concave bottom protection / reinforcing portion are formed by compression-molding the heat insulating foam, and the depth of the concave portion is determined by the thickness of the vacuum heat insulating material. The surface of the vacuum heat insulating material and the surface of the heat insulating foam are flush with each other, and the protection / reinforcement part of the concave part and the concave bottom part is formed by compression molding. The panel surface can be made smooth and uniform as a recess having a depth considering the elastic deformation of compression molding, and can be manufactured more easily.

  According to the vacuum heat insulating panel of the first aspect of the present invention, the thickness of the vacuum heat insulating material portion and the other heat insulating foamed portion can be made uniform and smooth, and panels having different sizes can be easily manufactured without using a mold. In addition, by making the concave bottom part a protective / reinforcing part, the vacuum heat insulating material can be protected and reinforced, and damage can be prevented.

  Moreover, according to the vacuum heat insulation panel of claim 2 of the present invention, it is possible to protect and reinforce the vacuum heat insulating material by increasing the density by increasing the density of the heat insulating foam, and the heat insulating performance by increasing the density. Since the vacuum heat insulating material portion can secure a sufficiently high heat insulating performance as compared with other portions, both the protection and reinforcement of the vacuum heat insulating material portion and the heat insulating performance of the entire panel can be achieved.

  Furthermore, according to the method for manufacturing a vacuum heat insulating panel according to claim 3 of the present invention, the vacuum heat insulating material portion and the other heat insulating foam portion have a uniform and smooth panel or a panel having a different size. In addition to being able to be manufactured easily, the vacuum heat insulating material can be protected and reinforced by making the concave bottom part a protective / reinforcing part, and damage can be prevented.

  According to the method for manufacturing a vacuum heat insulation panel according to claim 4 of the present invention, the protection / reinforcement portion of the concave portion and the concave bottom portion can be simultaneously formed by compression molding, and the depth considering the elastic deformation of the compression molding is considered. As the concave portion, the surface of the panel can be smoothed and the panel can have a uniform thickness, and can be manufactured more easily.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic perspective view and a longitudinal sectional view of a disassembled state according to an embodiment of a vacuum heat insulating panel of the present invention.

  As shown in FIG. 1, for example, the vacuum heat insulating panel 10 of the present invention has a thin plate-like vacuum heat insulating material 11 attached to a recess 13 formed in a panel-like heat insulating foam 12 and an upper surface of the heat insulating foam 12. The vacuum heat insulating material 11 is configured so that the upper surface thereof is continuous. The vacuum heat insulating material 11 is covered with the heat insulating foam 12 around the left and right sides, and the lower surface of the vacuum heat insulating material 11. Is covered with the protective / reinforcing portion 15 of the concave bottom portion 14 which is the bottom portion of the concave portion 13 of the heat insulating foam 12.

  In this vacuum heat insulation panel 10, the protection / reinforcement part 15 formed on the concave bottom part 14 of the heat insulation foam 12 is formed integrally with the heat insulation foam 12, and the strength is increased by increasing the density compared to other parts. The vacuum heat insulating material 11 is protected and reinforced.

  The protective / reinforcing portion 15 is formed by, for example, forming a heat insulating foam 12 into a panel having a certain thickness and compressing the portion of the heat insulating foam 12 having a certain thickness to which the vacuum heat insulating material 11 is to be attached by pressing. By forming the concave portion 13, the protective / reinforcing portion 15 with increased density can be formed on the concave bottom portion 14 simultaneously with the formation of the concave portion 13.

  The vacuum heat insulating panel 10 is not limited to the case where the heat insulating foam 12 is formed to have a constant thickness, and then the concave portion 13 is formed by compression molding and the protective / reinforcing portion 15 is formed. It is also possible to form a punched hole in the punched hole, to attach a protective / reinforcing part formed with a different density to the punched hole to form a recess, and to attach a vacuum heat insulating material to the recessed part.

  Moreover, when compression molding etc. are performed in order to form the recessed part 13, although the density of the heat insulation foam 12 can be raised compared with another part, since the cell of a foam is crushed, the heat insulation performance tends to fall. It is in. However, in this vacuum heat insulating panel 10, since the vacuum heat insulating material 11 is attached to the protective / reinforcing portion 15 portion, the panel as a whole has a sufficient heat insulating performance even when considering a decrease in heat insulating performance due to an increase in density. It can be ensured, and there is no problem. By improving the strength, the protection function of the vacuum heat insulating material 11 can be improved, and damage to the vacuum heat insulating material 11 due to external force can be prevented.

  The vacuum heat insulating panel 10 is not limited to the one provided with one vacuum heat insulating material 11 in one recess 13 in the heat insulating foam (panel) 12, but as shown in FIG. A plurality of vacuum heat insulating materials 11 may be provided in the concave portion 13 in the heat insulating foam 12 such as one in which the four vacuum heat insulating materials 11 are provided in one concave portion 13.

  The vacuum heat insulating material 11 is covered with the heat insulating foam 12 and the lower surface is covered with the protective / reinforcing portion 15 of the heat insulating foam 12 to form a panel, but not shown in the drawings. Laminate protective foam / reinforcement on the top surface of the foam, and install the laminated insulation in the recess of the insulation foam. It is also possible to form a panel in a state in which the vacuum heat insulating material is completely embedded in the heat insulating material by covering with the material protection / reinforcing part.

  The vacuum heat insulating panel 10 made into a panel shape with such a vacuum heat insulating material 11 and the heat insulating foam 12 is formed into a size of the vacuum heat insulating material 11 on the panel heat insulating foam 12 formed into a product size after molding or at the time of molding. A corresponding recess 13 is formed, the vacuum heat insulating material 11 is attached to the recess 13, and the periphery of the heat insulating foam 12 and the recess 13 is fixed with a tape (not shown).

  That is, in this vacuum heat insulation panel 10, since the recessed part 13 is formed in the heat insulation foam 12 shape | molded to a product dimension, this recessed part 13 is formed in the magnitude | size corresponding to the thickness of the vacuum heat insulating material 11, and a vertical and horizontal dimension. However, when the concave portion 13 is formed by compression molding, it is processed into a size that takes into account the change in size due to elastic deformation.

  In addition, when providing a heat insulation foam also on the upper surface side which is not shown in figure, it processes into the recessed dimension which considered the thickness of the lamination | stacking lamination | stacking vacuum insulation.

    According to such a vacuum heat insulating panel 10, it is easy to form the heat insulating foam 12 with product dimensions and to form the protective / reinforcing portion 15 in the concave portion 13 and the concave bottom portion 14. 11 and a laminated vacuum heat insulating body having a uniform thickness can be formed, mounted and fixed easily, and the vacuum heat insulating panel 10 combining them can be easily made into product dimensions. The thickness of the material 11 portion and other portions can be made uniform and smoothness can be maintained.

  That is, for example, in the case where a vacuum heat insulating panel is to be integrally formed, when foaming raw material is sprayed on the upper surface and the periphery of the vacuum heat insulating material 11 attached on the lower surface material and pressed by the upper surface material, the portion into which the vacuum heat insulating material enters In this vacuum heat insulating panel 10, the thickness of the portion where the vacuum heat insulating material 11 enters and the portion where the vacuum heat insulating material 11 does not enter can be made uniform, and the vacuum heat insulating material 11 By increasing the density of the recessed bottom portion 14 to be attached, the strength can be increased, the vacuum heat insulating material 11 can be reinforced and protected from damage.

  Moreover, according to this vacuum heat insulation panel, the insulation foam 12 in which the protection and reinforcement part 15 was formed in the recessed part 13 and the recessed bottom part 14 in which the vacuum heat insulating material 11 enters can be shape | molded without using a type | mold, and the panel from which a magnitude | size differs. It can be manufactured easily.

Next, the vacuum heat insulation panel will be specifically described, and a method for manufacturing the vacuum heat insulation panel of the present invention will be described.
FIG. 3 is related to one embodiment of the manufacturing method of the vacuum heat insulating panel of the present invention, (a) is a schematic configuration diagram of the manufacturing process of the heat insulating foam, and (b) is the manufacturing process of the recess and the protection / reinforcement part. It is the expanded schematic block diagram.

  As shown in FIG. 3A, the heat insulating foam 12 constituting the vacuum heat insulating panel 10 is manufactured by, for example, an inverse method, and is a synthetic resin that becomes the heat insulating foam 12 between the two upper and lower surface materials 21 and 22. Foaming material is sprayed, foamed and cured, molded into a substantially rectangular parallelepiped panel, both sides are cut with side cutters, and cut with a cross cutter at a predetermined length in the feed direction. Manufactured to dimensions. Moreover, you may manufacture the heat insulation foam 12 using not only an inverse method but a horizontal method.

  As the upper and lower surface materials 21 and 22 constituting such a heat insulating foam 12, one having a thickness of 0.1 to 1.0 mm is used, for example, a plastic film (thickness 15 to 50 μ) and one or more charcoal papers. (100 to 300 g / m2) laminated, but kraft paper or core paper laminated with metal foil such as aluminum, kraft paper or core paper vapor deposited metal, craft A laminate of a plastic film such as polyethylene film or polyester film on paper or a core paper, a laminate of these plastic films, a laminate of a combination of a plurality of these plastic films, for example, polyethylene film and charcoal cal paper And a four-layer structure of polyethylene film and PET film.

  Moreover, as a synthetic resin foam raw material used as the heat insulation foam 12, for example, a rigid polyurethane foam is used, and polystyrene foam, polyethylene foam, phenol foam, vinyl chloride foam, urethane-modified isocyanurate foam, isocyanurate foam, and carboxyl modification. An appropriate synthetic resin foam such as isocyanurate foam can be used.

  The heat insulation foam 12 made of this synthetic resin foam raw material has a thickness of 9 to 30 mm and a foam density of 20 to 100 kg / m <3>.

  When the heat insulating foam 12 is manufactured, the upper surface material 21 is continuously supplied from the upper surface material transfer line 32 of the continuous manufacturing apparatus 30 and supplied to the coiled upper surface material 21, and then is fed horizontally and beyond. The upper surface material 21 is inverted and supplied by the provided curved portion 33. After the reversal, the upper surface material 12 and the lower surface material 11 are so-called inverse type, and the upper surface material transfer line 32 is curved. An application nozzle 34 for applying a hard urethane foam raw material, for example, as a foam raw material of the heat insulating foam 12 is provided upstream of the section 33, and for example, two liquids of an isocyanate component and a polyol component are mixed by the application nozzle 34. After the foaming raw material is stirred, it is applied to the surface of the upper surface material 21 (the upper surface which is the inside of the vacuum heat insulating panel 10).

    Further, at the time of application, in order to uniformly apply the foaming raw material in the horizontal width direction (perpendicular to the paper surface in FIG. 3), the application nozzle 34 is continuously applied while reciprocating in the horizontal width direction. The thickness of the heat insulating foam 12 is made uniform when it is placed on the top 22.

  Further, a heating device 35 such as a curved platen heater is provided downstream from the curved portion 33 of the upper surface material transfer line 32, and foaming when the foaming raw material applied by the application nozzle 34 is sent together with the upper surface material 21 while gradually foaming. The foaming state of the raw material can be adjusted.

  In this way, the upper surface material 21 and the lower surface material 22 are brought close to each other, the synthetic resin foam is sandwiched between the upper surface material 21 and the lower surface material 22, and then further fed into the downstream double conveyor 36 to hold it from above and below. To a certain thickness.

  In this double conveyor 36, the foamed thickness is set to a predetermined value by sandwiching the upper and lower materials 21 and 22 between the upper and lower conveyors 36 a and 36 b and pressing the synthetic resin foam with a constant pressure. For example, the upper conveyor 36a is supported in a floating state.

  Moreover, in this double conveyor 36, since the synthetic resin foam of the upper surface material 21 is covered on the lower surface material 22, the space | interval of an entrance side is expanded and it makes a sandwich from the intermediate part by a constant space | interval. You may be able to pinch.

  In this way, the synthetic resin foam that becomes the heat insulating foam 12 is sandwiched between the upper and lower surface members 21 and 22 and integrated into a panel shape, and then cut by the side cutter 38 and the cross cutter 39 for trimming to a predetermined size. A panel of insulating foam 12 of the same size (eg product dimensions) is produced.

  And the protection which raised the density of the recessed part 13 for attaching the vacuum heat insulating material 11 to the panel of the heat insulation foam 12 by which this external shape was made into the predetermined dimension (product dimension) by the press 40 etc., and the concave bottom part 14 -The reinforcement part 15 is processed simultaneously and the heat insulation foam 12 is completed.

  The heat insulating foam 12 manufactured in this way can be easily and continuously manufactured with a uniform thickness without the need for a mold, which can greatly improve productivity and reduce costs. Can be achieved.

  Moreover, since a mold is not required, the heat insulating foams 12 having different sizes can be easily manufactured.

  The vacuum heat insulating material 11 attached to the recess 13 of the vacuum heat insulating panel 10 is made of, for example, a core material such as a slab material of open-cell hard plastic foam and a getter agent such as zeolite, nylon, PET, aluminum foil, polyethylene, or the like. However, not limited to this, a plastic film and a metal are used. It may be a vacuum heat insulating material that wraps other core materials such as those having silica powder or glass wool with other coating materials such as those having a laminate film with foil, and is a rigid plastic foam Compared with a single heat insulating material, the heat conductivity is low (for example, about one sixth), and high heat insulating properties can be obtained.

  Then, the heat insulating foam 12 having the protective and reinforcing portions 15 formed in the concave portion 13 and the concave bottom portion 14 is mounted so as to fit the vacuum heat insulating material 11, and the heat insulating foam 12 and the vacuum heat insulation around the concave portion 13. The vacuum heat insulation panel 10 is completed by fixing the material 11 with a tape or the like.

  According to such a method for manufacturing a vacuum heat insulating panel, the vacuum heat insulating material 11 is attached to the concave portion 13 of the heat insulating foam 12 so that the vacuum heat insulating material 11 can be assembled. The thickness of the heat insulating foam 12 can be adjusted to make the thickness of the entire panel uniform, and it can be made smooth without partly swelling.

  In addition, according to this method for manufacturing a vacuum heat insulating panel, the heat insulating foam 12 can be manufactured without the need for a mold, and the vacuum heat insulating panel having a different size can be easily manufactured. be able to.

  In addition, as a vacuum heat insulation panel from which a size differs, it is not only when greatly changing one piece of vacuum heat insulating material with which it installs in a crevice, but when the size of the surrounding heat insulation foam part differs with the same size vacuum heat insulating material The vacuum heat insulating panels having different sizes can be manufactured in the same manner, for example, when the vacuum heat insulating material portions are different in size by using a plurality of vacuum heat insulating materials.

  Moreover, when manufacturing such vacuum heat insulation panels with different sizes, a plurality of vacuum heat insulating materials to be attached to the recesses may be provided, and a plurality of pieces may be attached and fixed to one recess of the heat insulating foam. .

It is the schematic perspective view and longitudinal cross-sectional view of the decomposition | disassembly state concerning one Embodiment of the vacuum heat insulation panel of this invention. It is the schematic perspective view and longitudinal cross-sectional view of the decomposition | disassembly state concerning other one Embodiment of the vacuum heat insulation panel of this invention. It concerns on one Embodiment of the manufacturing method of the vacuum heat insulation panel of this invention, (a) is a schematic block diagram of the manufacturing process of a heat insulation foam, (b) is the schematic structure which expanded the manufacturing process of a recessed part and a protection and reinforcement part. FIG. It is a schematic perspective view of the conventional vacuum heat insulation panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vacuum heat insulating panel 11 Vacuum heat insulating material 12 Heat insulating foam 13 Foam 14 Punching hole 15 Laminated vacuum heat insulating material 21 Upper surface material 22 Lower surface material 30 Continuous manufacturing apparatus 31 Lower surface material transfer line 32 Upper surface material transfer line 33 Curved part 34 Application nozzle 35 Heating device 36 Double conveyor 37 Cure oven 38 Side cutter 39 Cross cutter 40 Press

Claims (4)

A vacuum insulation panel in which a vacuum insulation material is covered with foam,
A vacuum heat insulating panel comprising a heat insulating foam formed with a recess for mounting the vacuum heat insulating material, and a protective / reinforcing portion for protecting and reinforcing the vacuum heat insulating material on the concave bottom. 2. The vacuum heat insulation panel according to claim 1, wherein the protection / reinforcement portion is formed by increasing the density of the heat insulation foam. When manufacturing vacuum insulation panels with vacuum insulation material covered with foam,
In addition to forming a recess into which the vacuum heat insulating material enters the heat insulating foam formed in the size of the vacuum heat insulating panel, and forming a protective / reinforcing portion that protects and reinforces the vacuum heat insulating material by increasing the density of the concave bottom portion. After that, a method for manufacturing a vacuum heat insulating panel, wherein the vacuum heat insulating material is mounted and fixed in the recess. The concave portion and the concave bottom protective / reinforcing portion are formed by compression molding the heat insulating foam, and the depth of the concave portion is formed by adding elastic deformation to the thickness of the vacuum heat insulating material. 4. The method for manufacturing a vacuum heat insulating panel according to claim 3, wherein the surface of the vacuum heat insulating material and the surface of the heat insulating foam are flush with each other.

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