JP2015086589A - Heat insulation panel for construction and fitting structure of heat insulation panel for construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulation panel for construction whose heat insulating properties can be sufficiently secured and fitting structure of the heat insulation panel.SOLUTION: The present invention provides a heat insulation panel for construction with: one or a plurality of vacuum heat insulation materials; and a hard foam body which covers at least a part of peripheries of the one or the plurality of vacuum heat insulation materials, in which a fitting area to be fitted to a fitting ground of a building is formed at a hard foam body part where the vacuum heat insulation material does not exist over the whole thickness. As compression strength in 2% of a deformation rate of the hard foam body, 30kPa or more and 400kPa or less is desirable. As a proportional limit in a compression test of the hard foam body, 2% or more is preferable. It is desirable that the hard foam body uses hard urethane as a principal component. The present invention provides fitting structure of the heat insulation panel for construction which comprises: the heat insulation panel for construction, and a fitting tool which fits the heat insulation panel for construction to the fitting ground of the building, in which the heat insulation panel for construction is fixed to the fitting ground in the fitting area.

Description

  The present invention relates to a building heat insulation panel and a building heat insulation panel mounting structure.

  As the heat insulating panel, there is one in which a plurality of vacuum heat insulating bodies are covered with a foamed synthetic resin (see JP-A-10-21865). This heat insulation panel is usually fixed to a pillar (attachment base) through a face material attached to the surface of the foamed synthetic resin. This face material is larger than the vertical and horizontal dimensions of the foamed synthetic resin. Since the face material is larger than the size of the foamed synthetic resin as described above, when a plurality of heat insulating panels are arranged in parallel, a gap without the foamed synthetic resin is generated in a portion fixed through the face material. As a result, the heat insulation panel may not be able to ensure sufficient heat insulation due to a gap without foamed synthetic resin. In addition, when a wooden frame or vertical member is provided to prevent distortion and deformation of the heat insulation panel and increase the strength, the manufacturing process of the heat insulation panel becomes complicated, and the wood is warped by moisture absorption and drying. Since deformation due to shrinkage is likely to occur, gaps and backlash between members are likely to occur during long-term use, and long-term heat insulation may not be maintained. In addition, if the insulation panel is large, it will be fixed by placing a pillar or beam in the center of the insulation panel during construction, but the fixing fastener will pierce or damage the vacuum insulation material, causing a vacuum break. There is a risk of significantly reducing the heat insulation.

  Moreover, as a construction method of the vacuum heat insulating material, there is a method in which the vacuum heat insulating material is fixed with its jacket material (see Japanese Patent Application Laid-Open No. 2007-154585). This construction method is to fix at the end of the adjacent vacuum heat insulating material so as not to cause a vacuum break in the decompression space of the vacuum heat insulating material. The end portion of the vacuum heat insulating material is an independent space having a core material, and the end portion is overlapped with a pillar portion, and the core material in the independent space is overlapped. Since the vacuum heat insulating material in this form is formed with an independent space having a core material separately from the decompression space, the manufacturing process becomes complicated and the occupied area of the core material becomes small, so that the heat insulating property is reduced. May get worse. In addition, the vacuum heat insulating material has large dimensional variations, and a gap is likely to be generated at the overlapping portion of the end portions, so that there is a possibility that sufficient heat insulating properties cannot be ensured.

  Thus, there is a possibility that the heat insulating property cannot be sufficiently secured by the conventional heat insulating panel and its construction method.

Japanese Patent Laid-Open No. 10-211985 JP 2007-154585 A

  This invention is made | formed based on the above situations, and it aims at providing the attachment structure of the heat insulation panel for construction which can fully ensure heat insulation, and a heat insulation panel.

  The invention made in order to solve the above-mentioned problems is a building insulation panel comprising one or more vacuum heat insulating materials and a hard foam covering at least part of the peripheral edge of the one or more vacuum heat insulating materials. And the attachment area | region attached to the attachment base | substrate of a building is the heat insulation panel for buildings characterized by being formed in the hard foam part in which the said vacuum heat insulating material does not exist over the whole thickness.

  The said heat insulation panel can be fixed to the attachment base | substrate of a building in the attachment area | region formed in the hard foam part in which a vacuum heat insulating material does not exist. Therefore, since the said heat insulation panel can apply a general vacuum heat insulating material, without using a complicated shape and structure as a vacuum heat insulating material, without the manufacturing process of a vacuum heat insulating material becoming complicated, in a vacuum heat insulating material. Since the area occupied by the core material is not reduced, the heat insulation can be prevented from deteriorating.

  Moreover, since the said heat insulation panel can be formed by applying a general vacuum heat insulating material and covering this vacuum heat insulating material with a hard foam, the variation in a dimension is small. Therefore, when a plurality of heat insulating panels are arranged side by side, the side surfaces of the heat insulating panels can be brought into contact with each other, so that a gap between adjacent heat insulating panels can be eliminated. Furthermore, since the said heat insulation panel has the attachment area | region of a hard foam part, it can fix to the attachment base | substrate of a building in an attachment area | region, without using a face material like the past. Further, it is possible to finely adjust the dimensions by cutting a part of the attachment region. Also in this respect, when a plurality of heat insulating panels are arranged side by side, it is possible to eliminate a gap between adjacent heat insulating panels. As a result, the heat insulating panel can sufficiently ensure heat insulating properties.

  The compressive strength when the deformation rate of the hard foam is 2% is preferably 30 kPa or more and 400 kPa or less. Here, the heat insulation panel is heavy because the vacuum heat insulating material is incorporated. On the other hand, according to the said heat insulation panel, sufficient intensity | strength is ensured even if it does not provide a frame and the member for reinforcement in a heat insulation panel because the compressive strength at the time of a deformation rate of 2% is the said range. Therefore, when the compressive strength of the heat insulation panel is within the above range, it is possible to sufficiently secure the strength of the attachment portion necessary for attaching the heat insulation panel to the attachment base. As a result, even if the heat insulation panel is increased in weight by the vacuum heat insulating material, it can be appropriately supported with respect to the mounting base (column).

  The deformation rate at the proportional limit during the compression test of the hard foam is preferably 2% or more. Thus, when the deformation rate at the proportional limit at the time of the compression test is 2% or more, the compression strength when the deformation rate is 2% is in the above range, and the heat insulation panel is attached to the mounting base. Sufficient strength of the mounting portion can be secured. Furthermore, since stress generated in the rigid foam can be within the proportional limit when mounting and subsequent loads are applied, residual strain due to increase or decrease in load such as wind pressure after mounting is prevented, and the mounting area around the fastener is prevented. It is possible to suppress a decrease in heat insulation performance due to a gap due to loosening or the like.

  As said hard foam, what has hard urethane as a main component is preferable. As described above, when the foam contains hard urethane as a main component, it is possible to appropriately provide a hard foam in which target strength (for example, compressive strength or proportional limit) is ensured. Thereby, according to the said heat insulation panel, the intensity | strength of an attachment area | region and the intensity | strength as a heat insulation panel can fully be ensured, and the dimension of the said heat insulation panel can be enlarged with sufficient intensity | strength. Moreover, since hard urethane is excellent in moldability and self-adhesiveness, the vacuum heat insulating material and the hard foam can be brought into close contact with each other without any gap, and is preferable in terms of ensuring heat insulation and preventing condensation.

  The plurality of vacuum heat insulating materials may be disposed on substantially the same plane. As described above, by arranging the plurality of vacuum heat insulating materials on substantially the same plane, it is possible to form a hard foam portion in which no vacuum heat insulating material exists between the vacuum heat insulating materials arranged side by side. Therefore, it can be set as the said attachment area | region by making the position of the said hard foam part into the part corresponding to the attachment base when the said heat insulation panel is attached to an attachment base. As a result, while avoiding the vacuum break of the vacuum heat insulating material, the size of the heat insulating panel can be ensured large, and the heat insulating panel can be attached to the mounting base with sufficient mounting strength.

  The number of the plurality of vacuum heat insulating materials may be 2 or more and 8 or less, and more preferably 3 or more and 6 or less. The arrangement may be arranged in one row or in a plurality of rows.

  A vacuum packaging machine for producing a vacuum heat insulating material is an expensive facility, and especially a large-sized product is more expensive. Therefore, the maximum size of a vacuum heat insulating material that can be produced by a vacuum packaging machine is generally 0.5 m × 0. 5 m to 1 m × 1 m. On the other hand, the size of heat insulation panels used in Japan is extremely large, 1820 mm x 910 mm, and the heat insulation panels are attached to attachment bases arranged at intervals of about 303 mm, 455 mm, or 500 mm with fasteners such as screwing. There are many things. In order to prevent the vacuum heat insulating material from being broken by the fastener, the heat insulating panel needs to be provided with a mounting region where the vacuum heat insulating material is not disposed at the same interval as the mounting base. As described above, the number of the vacuum heat insulating materials is determined by the manner of arrangement of the mounting regions determined in consideration of the size required for the heat insulating panel and the mounting base position.

  The mounting region is a region formed of a foamed resin body over the entire thickness without the vacuum heat insulating material disposed, and by providing the foamed resin body with a predetermined strength performance, a sufficient mounting strength can be secured in the long term. . In addition, when an area in which the vacuum heat insulating material is not arranged in the length direction and the width direction of the heat insulation panel is prepared and attached at a construction site or the like, either the length direction or the width direction is set as the attachment area. The method of selecting whether to do so is also beneficial because it increases the degree of freedom of panel assignment on site. Furthermore, it is preferable to change the interval between the regions where the vacuum heat insulating material is not arranged in the length direction and the width direction because the choice of the interval of the mounting base increases. In this case, it is preferable in terms of heat insulation performance to fix the heat insulating material equivalent to the attachment base in the portion not used as the attachment region.

  The size of the vacuum insulation material produced by a general vacuum packaging machine is often shorter than the length of the heat insulation panel, so there are many cases where a vacuum insulation material seam can be formed in the length direction. By selecting a material having elongation performance, it is possible to obtain a heat insulating panel in which each vacuum heat insulating material is firmly and tenaciously connected by a hard foam.

  Another invention made in order to solve the above-mentioned problem is provided with the said heat insulation panel for construction, and a fixture which attaches this heat insulation panel to the attachment base of a building, and the above-mentioned heat insulation panel is the above-mentioned attachment base in the above-mentioned attachment field. It is the mounting structure of the heat insulation panel currently fixed.

  The mounting structure of the heat insulating panel fixes the heat insulating panel to the mounting base in the mounting region. Therefore, when a plurality of heat insulation panels are arranged side by side, it is possible to eliminate a gap between adjacent heat insulation panels as compared with the case where a conventional heat insulation panel is used. Can be secured sufficiently.

  The mounting tool includes a panel mounting member that presses the heat insulating panel when the heat insulating panel is fixed to the mounting base, and all of the mounting area is pressed by the panel mounting member on a surface in contact with the panel mounting member. It is good to be attached by doing. In this way, the heat insulation panel is pressed and attached in all of the attachment regions, and in the attachment region where heat insulation is inferior due to the absence of the vacuum heat insulating material, the panel attachment member overlaps, so that the heat insulation of the panel attachment member The entire construction surface can have high heat insulation performance. As a result, it is possible to prevent a gap from occurring between adjacent heat insulating panels.

  Here, the “main component” refers to a component having the highest content, for example, a content of 50% by mass or more. “Compressive strength when the deformation rate is 2%” means JIS K 7220 “Hard foamed plastic-Determination of compression characteristics”: Deformation with a deformation rate of 2% in the force-deformation curve measured according to 2006 It is a force in quantity. “Proportional limit at the time of compression test” means JIS K 7220 “Rigid foamed plastic-Determination of compression characteristics”: upper limit of range in which deformation and force are proportional in force-deformation curve measured according to 2006 It is the state which shows. “Hard urethane” means a foam having a hard foam and relatively low restorability, and in the present invention, a compressive strength at a deformation rate of 2% is 10 kPa or more.

  ADVANTAGE OF THE INVENTION According to this invention, the heat insulation panel for buildings which can fully ensure heat insulation over a long period of time, and the attachment structure of a heat insulation panel are provided.

It is a typical perspective view which shows the principal part of the attachment structure of the heat insulation panel which concerns on one Embodiment of this invention. (A) is a schematic cross-sectional view cut along line X1-X1 in FIG. 1, and (B) is a schematic cross-sectional view cut along line X2-X2 in FIG. It is typical sectional drawing of the heat insulation panel shown by FIG. It is a typical perspective view of the vacuum heat insulating material of the heat insulation panel shown by FIG. It is typical sectional drawing which follows the X3-X3 line | wire of FIG. It is typical sectional drawing which expands and shows the principal part of the outer packaging material of the vacuum heat insulating material of FIG. It is typical sectional drawing which expands and shows the junction part of the outer packaging material of the vacuum heat insulating material of FIG. It is typical sectional drawing for demonstrating the manufacturing method of a heat insulation panel. (A) is typical sectional drawing which shows the heat insulation panel which concerns on other embodiment of this invention, (B) is typical sectional drawing which shows the principal part of the attachment structure of the said heat insulation panel. (A) is typical sectional drawing which shows the heat insulation panel which concerns on other embodiment of this invention, (B) is typical sectional drawing which shows the principal part of the attachment structure of the said heat insulation panel.

  Hereinafter, the heat insulating panel for construction and the mounting structure of the heat insulating panel of the present invention will be described in detail with reference to the drawings.

[Building insulation panel construction structure]
1 and 2, the building heat insulation panel 1 (hereinafter also referred to as “heat insulation panel 1”) is attached to a building mounting base 3 by a fixture 2. Examples of the mounting base 3 include columns, studs, beams, horizontal trunk edges in the case of conventional wooden structures, and vertical frames, upper frames, and lower frames in the case of a framed wall construction method. This mounting structure is preferably applied to the outer heat insulating method from the viewpoint of securing the indoor space. In addition, this mounting structure has an advantage that the heat insulating panel 1 can be constructed with as large a dimension as possible without any on-site processing while maintaining heat insulating properties and mounting strength.

  When the mounting base 3 is stretched vertically, a wooden pillar, a stud, a vertical frame, and a steel-made stud are used. A wooden pillar having a cross section of 90 mm × 90 mm to 150 mm × 150 mm is often used, and a wooden pillar having a width of 30 mm to 60 mm and a cross section of 60 mm to 120 mm is often used. The length of the vertical frame is 38 mm × 89 mm to 38 mm × 286 mm, and 38 mm × 89 mm is particularly often used. As the steel pillars, square steel pipes, channel steels or lip channel steels having a plate thickness of 1.6 mm to 4.0 mm, a cross section of 30 mm to 150 mm, and a width of 50 mm to 150 mm are often used. 100 × 50 × 20 lip channel steel is most often used. Moreover, it is more preferable to fill the hollow portion in the cross section of the lip groove steel with a heat insulating material for enhancing the heat insulating property. Further, when the mounting base 3 is stretched in the horizontal direction, it becomes a wooden beam, a horizontal trunk edge, an upper frame, a lower frame, and a horizontal frame edge made of steel. In addition, the direction of the heat insulation panel 1 is not restricted by the direction of the mounting base 3. By appropriately designing the dimensions of the heat insulating panel 1 and the arrangement of the mounting region, for example, when the mounting base 3 is bridged in the vertical direction, the long side direction of the heat insulating panel 1 may be the vertical direction or the horizontal direction, Similarly, when the mounting base 3 is in the horizontal direction, the long side direction of the heat insulating panel 1 may be set in either the horizontal direction or the vertical direction.

[Insulation panel]
The heat insulation panel 1 can be used suitably for an outer-layer heat insulation construction method. The heat insulation panel 1 is fixed so as to bridge between the mounting bases 3. By using this heat insulation panel 1 for the outer heat insulation method, it is possible to prevent the indoor space from being narrowed by the heat insulation panel 1. The heat insulating panel 1 includes four vacuum heat insulating materials 4 and a hard foam 5. In the heat insulation panel 1, four vacuum heat insulating materials 4 are arranged in two rows × two rows on substantially the same plane.

  What is necessary is just to determine the dimension of the heat insulation panel 1 according to the distance W1 between the centers of the mounting base 3. FIG. Here, the center-to-center distance W1 of the mounting base 3 is determined to some extent, and is preferably 200 mm or more and 1000 mm or less, and more preferably 300 mm or more and 610 mm or less. Specifically, they are 455 mm and 303 mm. Although not shown in the figure, the columns are usually arranged at about 910 mm to 7280 mm, and the columns are arranged between the columns so that the interval as the mounting base 3 is a predetermined interval such as 303 mm or 455 mm. There are many. Therefore, when using two vacuum heat insulating materials 4 in the horizontal direction, the horizontal dimension W2 of the heat insulation panel 1 is, for example, about 910 mm and about 606 mm, which are twice the center distance W1 of the mounting base 3. The vertical dimension of the heat insulation panel 1 is, for example, not less than 1 and not more than 3 times the horizontal dimension W2, and is preferably around 2 times. As for thickness dimension T1 of the heat insulation panel 1, 10 mm or more and 100 mm or less are usually preferable 25 mm or more and 75 mm or less.

<Vacuum insulation>
The vacuum heat insulating material 4 enhances the heat insulating property of the heat insulating panel 1. The horizontal dimension W3 of the vacuum heat insulating material 4 is smaller than the distance W1 between the centers of the mounting base 3 and larger than the distance W4 between the opposing surfaces of the mounting base 3. As shown in FIGS. 4 and 5, the vacuum heat insulating material 4 includes a core material 6 and an outer packaging material 7.

(Core material)
The core material 6 ensures heat insulation in the vacuum heat insulating material 4. As the core material 6, for example, a fiber assembly, powder, foam, or the like can be used, and among these, a fiber assembly is preferable.

  Examples of the fiber assembly include a plate or a nonwoven fabric in which fibers are bonded by entanglement, fusion, or adhesion. Among these, a nonwoven fabric is preferable, and a nonwoven fabric in which fibers are bonded in a state in which fibers are oriented in a direction orthogonal to the thickness and has a predetermined gap distance is more preferable. With such a non-woven fabric, heat transfer in the thickness direction due to the solid thermal conductivity of the fibers is suppressed, and the thermal conductivity as the core material is suppressed and the heat insulation is improved.

  Moreover, it is preferable to make a some nonwoven fabric into a laminated body. By using a laminate, the number of fibers oriented in the direction perpendicular to the thickness is reduced, and the contact of fibers between the nonwoven fabrics is reduced, thereby suppressing the heat transfer in the thickness direction due to the solid thermal conductivity of the fibers. It is possible to improve the heat insulation by suppressing the thermal conductivity as the core material.

  In the nonwoven fabric, as a method of forming the fleece which is an accumulation layer of fibers, there are a dry method, a wet method (wet paper making method), a spun bond method, etc. Among them, fine cellulose fibers are dispersed between other fibers. A wet method is preferred for fixing. In addition, as the main method for bonding fibers, there are a chemical bond method, a thermal bond method, a needle punch method, and a hydroentanglement method, and among these, without using a binder component that gasifies in a vacuum state, The thermal bond method is preferable from the viewpoint that sufficient strength can be maintained even with a small number of contacts.

  The fiber aggregate includes main fibers and fine cellulose fibers, may include binder fibers, and may include other non-fiber components.

  Examples of the powder for the core material 6 include inorganic powders such as calcium silicate, pearlite, and silica, and organic powders such as polymethyl methacrylate (PMMA).

  Examples of the foam for the core material 6 include a resin foam such as a foamed urethane resin.

(Outer packaging material)
The outer packaging material 7 encloses the core material 6 in a vacuum state. The outer packaging material 7 is formed into a bag shape by heat-sealing the peripheral edge portions 7A of the pair of laminate sheets 70.

(Laminated sheet)
The laminate sheet 70 has a gas barrier property. As shown in FIG. 6, the laminate sheet 70 includes a laminate 71 and a heat fusion layer 72 bonded to the laminate 71. The material of the laminate sheet 70 is not particularly limited as long as it has gas barrier properties, and may be a single layer or a plurality of layers. In the case of a plurality of layers, various films such as a resin film and an aluminum film are laminated together with the adhesive layer.

(Laminate)
The laminated body 71 is obtained by bonding a pair of gas barrier films 73 via a first adhesive layer 74.

(A pair of gas barrier films)
The pair of gas barrier films 73 includes a resin film 75 and an inorganic layer 76 laminated on one surface 75 </ b> A of the resin film 75. The pair of gas barrier films 73 are laminated via the first adhesive layer 74 with the inorganic layers 76 facing each other. That is, the laminated body 71 is obtained by laminating a resin film 75, an inorganic layer 76, a first adhesive layer 74, an inorganic layer 76, and a resin film 75 in this order.

  The first adhesive layer 74 is mainly composed of an epoxy resin. This 1st adhesive bond layer 74 may contain other arbitrary components in the range which does not impair the effect of this invention other than an epoxy resin.

(Heat-fusion layer)
As shown in FIG. 7, the heat-sealing layer 72 heat-bonds the laminate sheets 70 by pressurizing and heating. The heat sealing layer 72 is bonded to the other surface 75 </ b> B of the resin film 75 through the second adhesive layer 77. As the second adhesive layer 77, an epoxy resin can be used similarly to the first adhesive layer 74.

<Rigid foam>
As shown in FIG. 3, the hard foam 5 surrounds the vacuum heat insulating material 4. Thus, by surrounding the vacuum heat insulating material 4 with the hard foam 5, the vacuum heat insulating material 4 and the hard foam 5 are integrated, and sufficient strength can be ensured while reducing the weight of the heat insulating panel 1. . The peripheral part of the vacuum heat insulating material 4 in the hard foam 5 is a hard foam in which the vacuum heat insulating material 4 does not exist. The part of the side part of the horizontal direction among the said peripheral parts comprises the attachment area | region 50 attached to the attachment base 3 of a building. The dimension W5 of the mounting region 50 is preferably less than half of the width dimension W7 of the mounting base 3. Specifically, the dimension W5 of the attachment region 50 is preferably 10 mm or greater and 30 mm or less. When the dimension W5 of the attachment region 50 is less than 10 mm, workability when attaching the heat insulation panel 1 to the attachment base 3 may be deteriorated. On the other hand, if the dimension W5 of the attachment region 50 exceeds 30 mm, the occupied volume of the hard foam 5 in the heat insulation panel 1 may be increased, and the heat insulation may be deteriorated. When four vacuum heat insulating materials 4 are arranged on the same plane as shown in FIG. 3 (two in the sectional view), the region between the vacuum heat insulating materials 4 in the peripheral portion (the center in the hard foam 5). Part) also constitutes the attachment region 51. The dimension W6 of the attachment area 51 is preferably smaller than the width dimension W7 of the attachment base 3, and the dimension W5 of the attachment area 50 is preferably 1 to 3 times and more preferably about 2 times. Specifically, the dimension W6 of the attachment region 51 is set to 20 mm or more and 60 mm or less. When the dimension W6 of the attachment region 51 is less than 20 mm, workability when attaching the heat insulation panel 1 to the attachment base 3 may be deteriorated. On the other hand, when the dimension W6 of the attachment region 51 exceeds 60 mm, the occupied volume of the hard foam 5 in the heat insulation panel 1 may be increased, and the heat insulation may be deteriorated.

  The thickness dimensions T2 and T3 on the surface side of the vacuum heat insulating material 4 in the hard foam 5 are preferably 0.25 to 2 times the thickness dimension T4 of the vacuum heat insulating material 4, and more preferably 0.25 to 1 times. 25 times or less. As specific dimensions, T2 and T3 are preferably 5 mm or more and 40 mm or less, and more preferably 10 mm or more and 30 mm or less. The minimum dimension is necessary for obtaining a predetermined panel strength and ensuring the filling property of the hard foam 5, and the maximum dimension is determined by workability and cost constraints. By setting the thickness dimensions T2 and T3 of the rigid foam 5 within the above range, the thickness dimension T1 of the rigid foam 5 (vacuum heat insulating material 4) is suppressed from being increased and the weight of the thermal insulation panel 1 is increased. It can suppress and can ensure the intensity | strength of the heat insulation panel 1 appropriately.

  The hard foam 5 is a foam mainly composed of a resin, for example. Examples of the main resin include urethane resins, polystyrenes, polyolefins such as polyethylene and polypropylene, phenol resins, polyvinyl chloride, urea resins, silicone resins, polyimides, melamine resins, and the like. Preferably, a urethane resin is more preferable, and a hard urethane resin is more preferable. The hard foam 5 may contain other optional components as long as the effects of the present invention are not impaired. As the optional component, known additives can be used.

  As the cell structure of the hard foam 5, it is preferable to use a material having a high closed cell rate in terms of securing the gas barrier property of the vacuum heat insulating material 4. Further, by using a gas (carbon dioxide, hydrocarbon, HFC, HFO, etc.) having a lower thermal conductivity than air as the foaming gas, it is possible to enhance the heat insulation of the hard foam by placing it inside the bubbles.

The density of the hard foam 5 is preferably 25 kg / m ³ or more and 75 kg / m ³ or less. By setting the density of the hard foam 5 within the above range, it is possible to ensure sufficient strength and heat insulation while reducing the weight of the heat insulation panel 1.

  The compressive strength when the deformation ratio of the hard foam 5 is 2% needs to be 10 kPa or more as the strength required for the heat insulating panel 1, preferably 30 kPa to 400 kPa, more preferably 60 kPa to 300 kPa, more preferably 80 kPa to 300 kPa. Is more preferable. The compression strength is 30 kPa or more because it is necessary to increase the arrangement and width of the panel mounting member 20, the fasteners 21, the number of steps and cost required for mounting, and the mounting strength of the heat insulating panel 1 may not be sufficiently secured. Is good. On the other hand, if the compressive strength exceeds 400 kPa, it is necessary to increase the density, which may increase the cost, and the workability is also inferior.

  The deformation rate at the proportional limit during the compression test of the hard foam 5 is preferably 2% or more, more preferably 5% or more, and further preferably 7% or more. If the proportional strength is less than 2%, the durability may not be sufficiently ensured when a load is repeatedly applied to the heat insulating panel 1. In particular, when this thermal insulation panel 1 is mounted in a state in which deformation with a deformation rate of 2% or less has occurred continuously, external forces such as wind pressure, seismic force, and vibration are further applied in this state, but the deformation rate is 2%. If the state is within the proportional limit, it is preferable because residual strain due to increase / decrease in the load of external force can be prevented, and deterioration of heat insulation performance due to gaps such as loosening of the attachment regions 50 and 51 around the fastener 21 can be suppressed. .

<Mounting tool>
As shown in FIG.1 and FIG.2, the fixture 2 is for fixing the heat insulation panel 1 to the mounting base 3 of a building. The fixture 2 includes a panel attachment member 20 and a fastener 21.

(Panel mounting member)
The panel mounting member 20 presses the heat insulating panel 1 when fixing the heat insulating panel 1 to the mounting base 3, attaches an external material such as a siding material, and a space for ventilation between the external material and the heat insulating panel 1. Is to secure. The width of the panel mounting member 20 is set so that the rigid foam 5 in the mounting regions 50 and 51 is formed by the tightening force of the mounting tool 2 required to generate a predetermined frictional force between the panel mounting member 20 and the heat insulating panel 1. It is preferable to determine in consideration of the area necessary for the stress generated in the above to be 30 kPa or more and 400 kPa or less and the deformation rate of the hard foam 5 due to this stress to be within 2%. The width of the mounting base 3 is preferably determined in consideration of the frictional force required between the mounting base 3 and the heat insulating panel 1 in the same manner as the width of the panel mounting member 20, but the width of the mounting base 3 is determined in advance. If it is too small, the pitch of the fasteners 21 may be reduced so that the frictional force acting between the panel mounting member 20 and the heat insulating panel 1 is generated in a wider range.

  The direction of the panel mounting member 20 is not limited by the direction of the mounting base 3 or the heat insulating panel 1. By appropriately designing the dimensions of the heat insulation panel 1 and the arrangement of the attachment regions 50 and 51 and further appropriately designing the arrangement of the fasteners 21, it is possible to set either the horizontal direction or the vertical direction. However, the mounting base 3 is preferably arranged in the vertical direction from the viewpoint of securing a ventilation space. Examples of such a panel mounting member 20 include wood and steel frames, but it is preferable to use wood because it is easy to ensure heat insulation.

  Further, it is generally performed to secure airtightness in a building by sticking a moisture-permeable waterproof sheet on the surface of the heat insulation panel 1 or sticking an airtight tape on the joint of the heat insulation panel 1. In this case, since the panel mounting member 20 presses the heat insulation panel 1 via a moisture-permeable waterproof sheet, an airtight tape, or the like, it is necessary to appropriately evaluate the influence on the friction coefficient.

(Fastener)
The fastener 21 penetrates the panel mounting member 20 and the heat insulating panel 1 and fixes the heat insulating panel 1 to the mounting base 3 together with the panel mounting member 20. The fastener 21 only needs to have a length dimension larger than the total thickness of the panel mounting member 20 and the heat insulating panel 1 so that at least the tip end can be stabbed or screwed into the mounting base 3. As the fastener 21, for example, a screw, a bolt, a nail or the like can be used. In particular, if screws are used, loosening is unlikely to occur even when an external force is applied, and a long-term stable frictional force can be obtained between the panel mounting member 2 and the heat insulating panel 1 and between the heat insulating panel 1 and the mounting base 3. This is preferable because stable support is possible. The shaft diameter of the screw is preferably about 4 to 6φ. Among the screws, use of a drill screw is preferable because it does not require a pilot hole and is excellent in workability. 1 and 2 show an example in which a screw is used as the fastener 21. FIG.

<Insulating panel mounting method>
The fastener 21 presses the heat insulating panel 1 between the panel mounting member 20 and the mounting base 3, and the frictional force between the panel mounting member 20 and the heat insulating panel 1 and between the mounting base 3 and the heat insulating panel 1. It is preferable to fix the heat insulation panel 1. The stress for obtaining the frictional force increases or decreases depending on the arrangement interval and width of the panel attachment member 20, the arrangement interval of the fastener 21, the thickness of the panel attachment member 20, and the like. , 51 is preferably about 30 to 400 kPa, and the rate of change due to pressing of the attachment regions 50 and 51 is preferably within 2%. The thickness of the heat insulation panel 1 is generally 10 mm to 100 mm, and the deformation of 2% corresponds to 0.2 mm to 2 mm. If this degree of deformation, the heat insulation panel 1 and the mounting portion of the heat insulation panel 1 are sound. It is kept, and the influence of the looseness etc. which arises in the surrounding part is also small enough. Further, by covering the outdoor side surface of the heat insulating panel 1 with a moisture permeable waterproof sheet or the like so that the air in the gap is in a stationary state, the influence of the joint gap can be suppressed. In addition, you may provide the display which shows that it is the attachment area | regions 50 and 51 in the position corresponding to the attachment area | regions 50 and 51 of the heat insulation panel 1 surface. The display may be any color, line drawing, pattern, mark, or the like as long as the attachment regions 50 and 51 are seen from the surface of the heat insulation panel 1.

[Insulation panel manufacturing method]
First, as shown in FIG. 8 (A), the heat insulating panel manufacturing method sets four (two in the sectional view) vacuum heat insulating materials 4 in a container 8. This container 8 has a spacer 81 fixed to a frame body 80. The four vacuum heat insulating materials 4 are placed on the same plane by being placed on the spacer 81.

Next, as shown in FIG. 8B, the foamed resin layer 52 is formed by filling the container 8 with a resin raw material. As the resin raw material, a urethane resin is preferable. Examples of the method of foaming the resin include a method using a low boiling point solvent, a method of mixing air, and a method of polymerizing by mixing a foaming agent. The foamed resin layer 52 has a predetermined density, for example, 25 kg / m ³ or more and 75 kg / m ³ or less by foaming the raw material resin. In general, when the raw material resin is foamed in the container 8, the upper and lower surfaces are assigned with mold plates, and the upper and lower mold plates are pressed with a press machine or the like to withstand a predetermined foaming pressure and have a predetermined size and shape. To get.

  Next, after a predetermined time has elapsed, as shown in FIG. 8C, after removing the spacer 81 and inverting the top and bottom, the container 8 is filled with a resin raw material as shown in FIG. Form body 5. In this case as well, it is common to apply a template to the upper and lower surfaces and press with a press or the like. Finally, the heat insulation panel 1 is obtained by removing the frame 80. The heat insulation panel 1 obtained in this way can also cut and cut | disconnect the attachment area | regions 50 and 51 of the heat insulation panel 1 peripheral part so that it may become a desired dimension.

[advantage]
The said heat insulation panel 1 can be fixed to the attachment base 3 of a building in the attachment area | regions 50 and 51 formed in the hard foam part in which the vacuum heat insulating material 4 does not exist. Thereby, the vacuum break by piercing or scratching the vacuum heat insulating material 4 with the fastener 21 at the time of construction can be prevented, and the trouble which reduces the heat insulation effect can be prevented. Therefore, since the said heat insulation panel 1 can apply the general vacuum heat insulating material 4 without using a complicated shape and structure as the vacuum heat insulating material 4, the manufacturing process of the vacuum heat insulating material 4 does not become complicated. Moreover, when the hard foam 5 between the vacuum heat insulating materials 4 is made of urethane resin excellent in adhesiveness and elongation performance, the bending strength and flexibility are further increased, which is preferable. With such a configuration, the portion of the hard foam 5 between the vacuum heat insulating materials 4 is not a weak point in strength in the entire heat insulating panel 1, and is extremely preferable from the viewpoint of ensuring flexibility. That is, the vacuum heat insulating material 4 is harder than the hard foam 5 and the portion containing the vacuum heat insulating material 4 is inferior in flexibility, but the region between the vacuum heat insulating materials 4 can be deformed into a hinge shape, The heat insulation panel 1 as a whole is excellent in flexibility. Moreover, when attaching the heat insulation panel 1 straddling the 3 or more attachment base | substrates 3, for example, when the three attachment base | substrates 3 are arrange | positioned in the perpendicular direction, the 1st, 2nd surface, 2nd and 3 from the left In some cases, the main surface is not the same surface but an angle is formed between the surfaces. In such a case, the heat insulation panel 1 of the present invention is flexible in the mounting regions 50 and 51 on the mounting base 3. Since it is excellent in performance, the construction is easy and the bending deformation of the vacuum heat insulating material 1 can be suppressed. Therefore, it is preferable without causing a vacuum break of the vacuum heat insulating material 4 and reducing the heat insulating property.

  Moreover, since the said heat insulation panel 1 can be formed by applying the general vacuum heat insulating material 4 and covering this vacuum heat insulating material 4 with the hard foam 5, the variation in a dimension is small. Therefore, it is possible to eliminate a gap between adjacent heat insulation panels 1 when a plurality of heat insulation panels 1 are arranged side by side. Furthermore, since the said heat insulation panel 1 is equipped with the hard foam 5 which has the attachment area | regions 50 and 51, it fixes to the attachment foundation | substrate 3 of a building in the attachment area | regions 50 and 51, without using a face material like the past. be able to. Also in this respect, when a plurality of heat insulation panels 1 are arranged in parallel, it is possible to eliminate a gap between adjacent heat insulation panels 1. As a result, the heat insulation panel 1 can sufficiently ensure heat insulation. Further, the long-term dimensional change is small as compared with a heat insulating panel made of urethane alone, and the generation of a gap due to a change with time can be advantageously suppressed.

  The mounting structure of the heat insulating panel 1 is to fix the heat insulating panel 1 to the mounting base 3 in the mounting regions 50 and 51. Therefore, when arranging a plurality of heat insulating panels 1 in parallel, it becomes possible to eliminate a gap between adjacent heat insulating panels 1 as compared with the case of using a conventional heat insulating panel. It is possible to ensure sufficient heat insulation.

<Other embodiments>
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is not limited to the configuration of the embodiment described above, but is defined by the scope of the claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of the claims. The

  For example, a form as shown to FIG. 9 (A) and FIG. 9 (B) or FIG. 10 (A) and FIG. 10 (B) may be sufficient as a heat insulation panel.

  The heat insulation panel 9A in FIG. 9A has four vacuum heat insulating materials 4, and most of one surface 41A of these vacuum heat insulating materials 4 is exposed. In this heat insulating panel 9A, the peripheral part 42 of the vacuum heat insulating material 4 is covered with the hard foam 5A, and the peripheral part of the vacuum heat insulating material 4 (the peripheral part and the central part of the hard foam 5A) is the hard foam part. Yes. As shown in FIG. 9B, the hard foam portion constitutes attachment regions 50 </ b> A and 51 </ b> A when the heat insulating panel 9 </ b> A is fixed to the attachment base 3 using the fixture 2. Since the hard foam 5 is formed on the heat insulating panel 9A so that most of the one surface 41A of the vacuum heat insulating material 4 is exposed, the weight can be reduced and the material cost can be reduced.

  The heat insulating panel 9B of FIG. 10A has four vacuum heat insulating materials 4, and most of the both surfaces 41A and 41B of these vacuum heat insulating materials 4 are exposed. As for this heat insulation panel 9B, the peripheral part 42 of the vacuum heat insulating material 4 is coat | covered with the hard foam 5B, and the peripheral part of the vacuum heat insulating material 4 is a hard foam part. As shown in FIG. 10B, the hard foam portion constitutes attachment regions 50 </ b> B and 51 </ b> B when the heat insulating panel 9 </ b> B is fixed to the attachment base 3 using the fixture 2. In this heat insulation panel 9B, since the hard foam 5 is formed so that most of both surfaces 41A and 41B of the vacuum heat insulating material 4 are exposed, it is possible to further reduce the weight and reduce the material cost. .

  The manufacturing method of the heat insulation panel 1 is not limited to the method demonstrated with reference to FIG. 8 (A)-FIG. 8 (D), Other methods may be sufficient. For example, it may replace with the method of manufacturing the heat insulation panel 1 of 1 sheet separately, and may be the method of manufacturing an individual heat insulation panel by cut | disconnecting to a desired dimension, after forming a continuous heat insulation panel. Also, as another manufacturing method, after a dice-like spacer is laid in a container (form) at a predetermined interval, a hard foam undiluted solution is poured, and the hard foam parts on the front and back of the vacuum heat insulating material are formed once. It can also be formed. In this case, it is preferable to use the same material as the hard foam of the heat insulating panel for the dice-shaped spacer, because it is possible to ignore the heat insulating material and the influence on the strength due to the spacer. In addition, the number of vacuum heat insulating materials at this time is preferably four, which is preferable because the undiluted solution poured from the center passes through the gaps between the vacuum heat insulating materials and the hard foam easily spreads over the whole.

  ADVANTAGE OF THE INVENTION According to this invention, the mounting structure of the heat insulation panel for construction which can fully ensure heat insulation, and a heat insulation panel is provided.

DESCRIPTION OF SYMBOLS 1 Heat insulation panel 2 Attaching tool 20 Panel attachment member 21 Fastening tool 3 Mounting base 4 Vacuum heat insulating material 5, 5A, 5B Hard foam 50, 51, 50A, 51A, 50B, 51B Mounting area W2 Width dimension of heat insulating panel W5, W6 Mounting area dimensions W7 Mounting base width

Claims (8)

One or more vacuum insulation materials;
A thermal insulation panel comprising: a hard foam covering at least a part of a peripheral edge of the one or more vacuum heat insulating materials,
A building heat insulating panel, characterized in that a mounting region to be mounted on a mounting base of a building is formed in a hard foam portion where the vacuum heat insulating material does not exist over the entire thickness.   The heat insulation panel for buildings according to claim 1, wherein the compression strength when the deformation rate of the hard foam is 2% is 30 kPa or more and 400 kPa or less.   The heat insulation panel for buildings according to claim 1, wherein a deformation rate at a proportional limit during compression test of the hard foam is 2% or more.   The heat insulation panel for buildings according to claim 1, wherein the hard foam has hard urethane as a main component.   The heat insulation panel for buildings according to any one of claims 1 to 4, wherein the plurality of vacuum heat insulating materials are disposed on substantially the same plane.   The architectural heat insulation panel according to claim 5, wherein the number of the plurality of vacuum heat insulating materials is 2 or more and 8 or less. A heat insulating panel for building according to any one of claims 1 to 6, and a fixture for attaching the heat insulating panel for building to a mounting base of a building,
A structure for mounting a heat insulating panel for building, wherein the heat insulating panel is fixed to the mounting base in the mounting region. A panel mounting member that presses the heat insulation panel when the fixture fixes the heat insulation panel to the mounting base;
The heat insulating panel mounting structure for building according to claim 7, wherein the mounting region is mounted by being pressed by the panel mounting member on a surface in contact with the panel mounting member.

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