JP2013217093A - Heat insulating panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulating panel which is excellent in heat insulation performance and has excellent dimensional stability not causing warp, deformation and the like due to aged deterioration even when a temperature difference between both front and back surfaces of the heat insulating panel is not generated during storage, distribution and the like.SOLUTION: In a heat insulating panel A where a closed space is formed by a frame body 5 and a pair of surface materials 21, 22 holding the frame body 5 from above and below, a vacuum heat insulating material 1 is arranged at an approximately central position in the thickness direction of the space so as to be approximately parallel to the surface materials 21, 22, and spaces S1, S2 formed between the vacuum heat insulating material 1 and the surface materials 21, 22 are filled with foamed resin materials 61, 62, the vacuum heat insulating material 1 is supported by a plurality of projecting support parts 4 formed at intervals on the back surface of at least one surface material 22.

Description

  The present invention relates to a heat insulating panel. More specifically, the present invention relates to a heat insulating panel in which a vacuum heat insulating material is used as a heat insulating material, the vacuum heat insulating material is disposed in a frame body, and the frame body is sandwiched between a pair of surface materials.

  Conventionally, on the exterior and interior of an apartment building such as a detached house or an apartment, a surface material is pasted or fixed to the front side of a frame consisting of upper and lower vertical frames and left and right horizontal frames, and a rear surface material is pasted or fixed to the back side. In general, a heat insulating material such as urethane foam, glass wool, rock wool or the like is filled between the surface material and the back material.

  In recent years, it has become widespread to use a vacuum heat insulating material as the heat insulating material, from the viewpoint of high heat insulating properties, handleability, load on the global environment, etc. As the vacuum heat insulating material, for example, glass wool or glass wool hardened with a binder is used as a core material, and the core material is covered with a gas barrier film and evacuated to keep the inside at a high vacuum. Yes.

  At this time, since the degree of vacuum is reduced by slow leak even if the surface of the gas barrier film has a minute scratch, the gas barrier film is usually used from the viewpoint of preventing damage to the film surface and further improving the heat insulation. In addition, another heat insulating material such as a hard foamed urethane resin foam is used in combination.

  For example, FIG. 4 of the present application is a partial cross-sectional explanatory view showing a known heat insulation panel C in which the vacuum heat insulating material 7 is disposed on the frame 5. As shown in FIG. 4 of the present application, a known heat insulating material 8 such as urethane foam is provided on the back surface and side surface of the vacuum heat insulating material 7, and the vacuum heat insulating material 7 is a gas barrier film of synthetic resin (FIG. (Not shown). The whole is protected by the front surface material 91 and the back surface material 92.

  By doing in this way, the heat insulation effect excellent by combining the vacuum heat insulating material 7 and the heat insulating material 8 can be acquired.

  However, the known heat insulation panel C configured as described above is constituted by a surface material 91 side covering the vacuum heat insulating material 7 and a back material 92 side covering the known heat insulating material 8 such as a hard urethane resin foam. That is, since the structure of the heat insulating material layer in the thickness direction is different, the structure becomes asymmetrical with respect to the central horizontal plane in the cross-sectional thickness direction of the heat insulating panel C, and causes factors such as moisture absorption at the time of inventory and temperature change Therefore, there is a problem that warpage occurs in the heat insulation panel C.

  In addition, when the heat insulating panel C is used as a flooring material, when there is a temperature difference between the front surface material 91 side and the back surface material 92 side, there is also a problem that warping and a phenomenon of pushing up the floor materials appear remarkably. is there.

  On the other hand, JP 2009-162038 A discloses a wooden frame assembled in a square shape, a vacuum heat insulating plate housed in the wooden frame, and a heat insulating material made of foamed resin covering both surfaces of the vacuum heat insulating plate. An architectural insulation panel is disclosed.

That is, as shown in FIGS. 6 (a) and 6 (b) of Japanese Patent Application Laid-Open No. 2009-162038, the architectural heat insulation panel accommodates a vacuum heat insulation plate in a rectangular wooden frame and is foamed. Place the support made of resin molding along the inner edge of the wooden frame on both sides of the vacuum heat insulating plate, sandwich it with the press plate of the molding machine, and against the space formed on each side of the vacuum heat insulating plate In addition, there is a description that the same raw material resin as that of the support material is filled and foamed simultaneously.

  And the heat insulation panel for construction concerning invention of the above-mentioned JP, 2009-162038, A vacuum heat insulation board is in the state where a vacuum heat insulation board was stored in a wooden frame without a gap, and was supported by a square-like support material from the both sides. By simultaneously foaming the raw material resin filled on both sides, a heat insulating material with a uniform thickness integrated with the support material is formed. Can be manufactured, and its effects are stated.

JP 2009-162038 A

  However, as shown in FIG. 6B of Patent Document 1, the building heat insulating panel supports the vacuum heat insulating plate from both sides thereof with a square-shaped support material, and both surfaces of the vacuum heat insulating plate. Since the raw material resin is filled and foamed on the side, warping and twisting occur in the square-shaped long support material due to moisture absorption and material aging, etc., and the product thermal insulation panel itself is also deformed. There is a problem that arises.

  The present invention has been made in view of such a situation, and its purpose is to solve the above-mentioned problems, for example, when used as a flooring material, and has excellent heat insulation performance, and only when heating the floor surface. In addition, it is an object to provide a heat insulating panel excellent in dimensional stability with less warping or deformation even when a temperature difference occurs between the front and back surfaces of the heat insulating panel during storage and distribution.

  In order to solve the above problems, the heat insulation panel according to the first aspect of the present invention forms a closed space by a frame body and a pair of surface materials sandwiching the frame body from above and below. The vacuum heat insulating material is disposed substantially in parallel with the surface material at a substantially central position in the thickness direction of the space, and the space formed between the vacuum heat insulating material and each surface material is filled with the foamed resin material. In the heat insulating panel, the vacuum heat insulating material is supported by a plurality of protruding support portions formed at intervals on the back surface of at least one surface material.

  In the heat insulation panel according to the second aspect of the present invention, the frame and the pair of surface materials sandwiching the frame from above and below form a closed space, and the thickness direction of the space A heat insulating panel in which a vacuum heat insulating material is disposed substantially in parallel with the surface material at a substantially central position, and a space formed between the vacuum heat insulating material and each surface material is filled with a foamed resin material. A plurality of projecting support portions are formed at intervals on the back surface of each surface material, and the vacuum heat insulating material is sandwiched and supported by the projecting support portions formed above and below.

  For example, when the above-described heat insulation panel according to the first and second inventions of the present application is used for interior as a heat insulation building material for a house, the surface material includes plywood, decorative plywood, woody materials such as MDF, gypsum board, volcanic property, etc. Various materials such as an inorganic material such as a glassy multilayer board can be used.

  In particular, as the surface material, for example, a board body made of an inorganic material such as a gypsum board or a volcanic glassy multilayer board is more preferably used from the viewpoint of heat insulation, fire resistance, and the like.

  As the frame body, a frame material made of a wood-based material such as plywood, decorative plywood, MDF or the like is generally used as a vertical frame and a horizontal frame. Alternatively, the frame structure may be formed by integrally forming the vertical frame and the horizontal frame.

  In the heat insulation panel according to the first aspect of the present invention, a closed space is formed by a frame and a pair of surface materials sandwiching the frame, and vacuum insulation is provided at a substantially central position in the thickness direction of the space. The material is arranged substantially parallel to the surface material, and the vacuum heat insulating material is supported by a plurality of protruding support portions formed at intervals on the back surface of at least one surface material, and above the vacuum heat insulating material. After the foamed resin material is filled and cured in this space, the foamed resin material is filled and cured in the other space upside down.

  Therefore, the foamed resin material filled in the space above the vacuum heat insulating material and the foamed resin material filled in the space below the vacuum heat insulating material exhibit excellent heat insulating performance, and the center in the cross-sectional thickness direction of the entire heat insulating panel Since it is configured to be substantially plane-symmetric with respect to the horizontal plane, even when there is no temperature difference between the front and back surfaces of the heat insulation panel, such as during storage and distribution, warping or deformation may occur due to moisture absorption or changes over time. It is possible to obtain a heat insulation panel with excellent dimensional stability.

  Further, since the protruding support portions are formed at intervals, the expansion and contraction due to the heat of the protruding support portions themselves is compared with the case where the protruding support portions are continuously formed in a rod shape on the back surface of the surface material. Can reduce the influence on the surface material, and therefore, it is possible to effectively prevent the entire insulation panel from warping.

  The heat insulation panel according to the second aspect of the present invention forms a closed space between the frame body and the pair of surface materials sandwiching the frame body, and vacuum insulation at a substantially central position in the thickness direction of the space. A plurality of projecting support portions are formed at intervals on the back surfaces of the pair of surface materials, and the projecting support portions formed above and below the material are disposed substantially parallel to the surface material. The vacuum heat insulating material is sandwiched and supported, and the foamed resin material is injected into the space by a single operation.

  Therefore, after completion of the curing reaction, the foamed resin material is uniformly filled in the space surrounded by the first surface material, the second surface material, and the frame, so that it exhibits excellent heat insulation performance and the cross section of the entire heat insulation panel Because it is almost completely symmetrical with respect to the central plane in the thickness direction, when there is a temperature difference between the front and back surfaces of the heat insulation panel during storage, distribution, etc., when moisture absorption or changes with time occur, etc. However, it is possible to obtain a heat insulating panel that is less likely to be deformed and has excellent dimensional stability.

  Furthermore, since the protrusion support part is formed at intervals, it is possible to effectively prevent warpage of the entire heat insulation panel for the same reason as described above.

  Further, since the vacuum heat insulating material is sandwiched between the projecting support portions formed on the upper and lower sides, the installation position of the vacuum heat insulating material is stably maintained, which helps to prevent warping and the upper and lower sides of the vacuum heat insulating material. The filling operation of the foamed resin material into the directional space can be performed stably and simultaneously in one operation.

It is a perspective explanatory view which decomposes | disassembles and shows the main components of the heat insulation panel concerning this invention 1st invention. (A) It is sectional drawing which shows the state by which the vacuum heat insulating material supported by the protrusion support part concerning this invention 1st invention was arrange | positioned in the approximate center position of the thickness direction of a heat insulation panel. (B) It is sectional explanatory drawing which shows the state which filled the foamed resin material in the space formed upwards in said (a). (C) It is sectional drawing which shows the heat insulation panel concerning this invention 1st invention when filling the foamed resin material into the space located in the upper side after inverting the panel illustrated in said (b) upside down. (A) A heat insulating panel according to the second invention of the present application, wherein the vacuum heat insulating material is disposed at a substantially central position in the thickness direction of the heat insulating panel, and the vacuum heat insulating material is formed from above and below the back surface of each surface material. It is sectional drawing which shows the state clamped by the part. (B) It is a heat insulation panel concerning 2nd invention of this application, Comprising: It is sectional drawing which shows the state which filled the foamed resin material in the space located up and down of a vacuum heat insulating material. It is partial cross-section explanatory drawing which shows the well-known heat insulation panel which embedded the vacuum heat insulating body in the frame.

  Hereinafter, the heat insulation panel concerning this invention is demonstrated in detail with reference to drawings. FIG. 1 is an exploded perspective view showing main components of the heat insulation panel according to the first invention of the present application.

  As shown in the drawing, the heat insulating panel includes a frame body 5, a first surface material 21 attached to the front surface side of the frame body 5, and a second surface material attached to the back surface side of the frame body 5. 22 and the vacuum heat insulating material 1 are main components, and the pair of surface materials 21 and 22 including the first surface material 21 and the second surface material 22 are closed with the frame body 5 interposed therebetween. Form a space.

  As shown in FIG. 1, a plurality of protruding support portions 4 having a substantially L shape in side view are provided at a predetermined interval on the back surface of the second surface material 22, and the protruding support portions 4 are the second surface material. It adheres to the back surface of 22 and supports the said vacuum heat insulating material 1. FIG. At this time, the thickness of the vacuum heat insulating material support portion 41 of the protruding support portion 4 is t.

  In this manner, the vacuum heat insulating material 1 is disposed substantially in parallel with the surface materials 21 and 22 at a substantially central position in the thickness direction of the space inside the closed space. Here, the code | symbol 3 shows the partition plate 3 which partitions the frame 5, and while functioning as the partition plate 3, it functions also as a reinforcement board.

  2 (a), 2 (b), and 2 (c) are cross-sectional explanatory views schematically showing an embodiment of a heat insulating panel A and a method for manufacturing the same according to the first invention of the present application, and a lower part sandwiching the frame body 5 A plurality of protruding support portions 4 are formed on the back surface of the second surface material 22. At this time, as shown in the drawing, the vacuum heat insulating material 1 is supported in a state of being floated by the thickness t of the vacuum heat insulating material support portion 41, and the vacuum heat insulating material 1 and the back surface side of the second surface material 22 are supported. A gap having a thickness t is formed between them.

  As shown in FIG. 2A, in this embodiment, a lower space S2 surrounded by the back surface of the second surface material 22 and the frame body 5 is formed below the vacuum heat insulating material 1, while a vacuum is formed. Above the heat insulating material 1, an upper space S1 surrounded by the back surface of the first surface material 21 and the frame 5 is formed.

  FIG. 2B is a cross-sectional explanatory diagram illustrating a state in which the foamed resin material 61 is filled in the upper space S1 illustrated in FIG. That is, for example, a hard urethane resin material is injected from an injection hole (not shown), and carbon dioxide gas is foamed. The foaming of carbon dioxide gas stops and after the curing reaction is completed, the upper space S1 is filled with the foamed resin material 61. Next, the whole is inverted so that the vertical positions of the first surface material 21 and the second surface material 22 are reversed.

  At this time, since the foamed resin material 61 filled in the upper space S1 is a material having a certain degree of rigidity such as a hard urethane resin, the vacuum heat insulating material 1 is firmly attached from below even if it is inverted upside down. To support. In this state, for example, a hard urethane resin material is injected from an injection hole (not shown) into the lower space S2 that is positioned above, and the lower space S2 is filled with the foamed resin material 62 in the same manner as described above. Thus, the heat insulation layer which consists of the foamed resin materials 61 and 62 can be easily provided in the upper surface side and lower surface side of the vacuum heat insulating material 1. FIG.

  FIG.2 (c) is sectional drawing which shows the heat insulation panel A concerning this 1st invention formed as mentioned above. As shown in FIG. 2 (c), the heat insulating panel A includes a foamed resin material 61 and a foamed resin that are substantially plane-symmetric with respect to a horizontal plane (horizontal plane indicated by a dotted line in FIG. 2) located substantially at the center in the thickness direction. The cross section thickness direction of the whole heat insulation panel A including the foamed resin materials 61 and 62 is also substantially plane-symmetrical.

  By doing in this way, while the said heat insulation panel A exhibits the heat insulation performance in which the vacuum heat insulating material 1 and the foamed resin materials 61 and 62 arrange | positioned by the upper surface side and the lower surface side were excellent, the heat insulation panel A whole Since the cross-sectional thickness direction is also substantially symmetrical, even when there is no temperature difference between the front and back surfaces of the heat insulation panel A, such as during storage and distribution, it is possible to suppress the occurrence of warping and deformation due to changes over time. The heat insulation panel A excellent in dimensional stability can be obtained.

  3 (a) and 3 (b), there are a plurality of substantially L-shaped protruding support portions 4 in a side view at predetermined intervals on each of the back surface of the first surface material 21 and the back surface of the second surface material 22. It is sectional explanatory drawing which shows roughly embodiment of the heat insulation panel B concerning this 2nd invention of this application provided, and its manufacturing method.

  As shown in FIG. 3A, the vacuum heat insulating material 1 is sandwiched from above and below by a vacuum heat insulating material support portion 41 having a thickness t. Thus, the vacuum heat insulating material 1 sandwiched between the pair of projecting support portions 4 and 4 is disposed substantially parallel to the surface materials 21 and 22 at a substantially central position in the thickness direction of the heat insulating panel of the present invention. .

  From the injection hole (not shown) to the space S3 above and below the vacuum heat insulating material 1 arranged as described above and surrounded by the first surface material 21, the second surface material 22, and the frame body 5. For example, a hard urethane resin material is injected in one operation, and carbon dioxide gas is foamed. As shown in FIG. 3 (b), the foamed resin material 63 is uniformly filled in the space S3 and the heat insulation panel B according to the second invention of the present application can be obtained. .

  The heat insulation panel B is uniformly filled with the foamed resin material 63 on the upper surface side and the lower surface side of the vacuum heat insulating material 1, so that it exhibits excellent heat insulation performance and the center of the entire heat insulation panel B in the cross-sectional thickness direction. The plane is almost completely symmetrical with respect to the plane. Therefore, even when there is no temperature difference between the front and back surfaces of the heat insulation panel B, such as during storage and distribution, to obtain a heat insulation panel B with excellent dimensional stability that does not warp or deform due to changes over time. Can do.

  As described above, the heat insulating panel according to the first and second inventions of the present application can be used as a heat insulating building material for interior decoration of a room by further applying the surface of the first surface material with a decorative sheet or the like. Or you may use as a flooring material. As described above, the present invention can be modified in design, and is included in the technical scope of the present invention without departing from the scope of the claims.

A Heat insulation panel B according to the first invention of the present application B Heat insulation panel C according to the second invention of the present application Known heat insulation panel t Thickness of the vacuum heat insulating material support portion S1 Above the vacuum heat insulating material filled with the foamed resin material in the first invention of the present application Upper space S2 Lower space S3 below the vacuum heat insulating material filled with the foamed resin material in the first invention of the present application Space 1 filled with the foamed resin material in the second invention of the present application Vacuum insulating material 21 First surface material 22 Second Surface material 3 Partition plate 4 Projection support part 41 Vacuum heat insulating material support part 5 Frame body 61 The foamed resin material 62 filled in the space above the vacuum heat insulating material in the first invention In the first invention, the space below the vacuum heat insulating material is filled Foamed resin material 63 Foamed resin material filled in the second invention 7 Vacuum heat insulating material used in a known heat insulating panel 8 Heat insulating material used in a known heat insulating panel 91 Back sheet used in the surface material 92 known insulation panels used in the panel

Claims (2)

  A closed space is formed by a frame and a pair of surface materials sandwiching the frame from above and below, and a vacuum heat insulating material is disposed substantially parallel to the surface material at a substantially central position in the thickness direction of the space. In a heat insulating panel in which a foamed resin material is filled in a space formed between the vacuum heat insulating material and each surface material, a plurality of surfaces formed at intervals on the back surface of at least one surface material A heat insulating panel characterized in that the vacuum heat insulating material is supported by a protruding support portion.   A closed space is formed by a frame and a pair of surface materials sandwiching the frame from above and below, and a vacuum heat insulating material is disposed substantially parallel to the surface material at a substantially central position in the thickness direction of the space. A heat insulating panel in which a foamed resin material is filled in a space formed between the vacuum heat insulating material and each surface material, and a plurality of protrusions spaced from each other on the back surfaces of the pair of surface materials A heat insulating panel, wherein a support portion is formed and the vacuum heat insulating material is sandwiched between the protruding support portions formed above and below the support portion.