JP6167653B2 - Thermal insulation panel - Google Patents

Description

  The present invention relates to an improvement of a heat insulating panel in which a vacuum heat insulating material is accommodated in a space of a digging recess of a base material.

  Conventionally, various floor heating panels have been proposed in which a planar heating element is disposed on the bottom side of the digging recess of the base material and a vacuum heat insulating material is disposed so as to overlap the planar heating element (for example, Patent Document 1).

  In the floor heating panel of Patent Document 1, one sheet heating element is used in consideration of cost, while two vacuum heat insulating materials are separated and accommodated in the width direction. In this way, the vacuum heat insulating material is separated and accommodated in order to secure strength against local load on the panel surface of the floor heating panel. Part).

JP 2007-93027 A

  By the way, conventionally, even in a heat insulating panel having no heat generation function (not having a planar heat generating body), a vacuum heat insulating material is separately housed by providing a pier at the bottom of the digging recess.

  However, since the pier is separate from the base material of the heat insulation panel, the pier pier installation process must be carried out before the vacuum insulation material is installed in the manufacturing process, and the assembly of the heat insulation panel is never good. Not a thing.

  The present invention has been proposed in view of such circumstances, and an object of the present invention is to provide a heat insulating panel having a certain strength against the load on the panel surface and excellent in assemblability. It is in.

In order to achieve the above object, the heat insulation panel of the present invention is a heat insulation panel in which a vacuum heat insulating material is accommodated in a space of a digging recess of a base material. A wall portion extending from the bottom portion and formed integrally with the bottom portion is divided into a plurality in the width direction, and a vacuum heat insulating material is accommodated for each of the divided spaces, and at the bottom of the dug recess An additional heat insulating layer is formed, and the vacuum heat insulating material has a thick portion formed by folding back a fin portion, while the additional heat insulating layer has a stepped recess formed in a portion corresponding to the thick portion. Features.

  According to the heat insulation panel of this invention, since it becomes the above-mentioned structure, it can give a fixed intensity | strength with respect to the load to a panel surface, and can aim at the improvement of assembly property.

It is explanatory drawing of the heat insulation panel which concerns on 1st Embodiment of this invention. (A) is the longitudinal cross-sectional view of the heat insulation panel, (b) is an exploded vertical cross-sectional view. It is a longitudinal cross-sectional view of the heat insulation panel which concerns on 2nd Embodiment of this invention. It is explanatory drawing of the heat insulation panel which concerns on 3rd Embodiment of this invention. (A) is a longitudinal cross-sectional view of the heat insulation panel, (b) is an exploded vertical cross-sectional view, and (c) is a plan view of a vacuum heat insulating material partially omitted.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  The heat insulation panel 1 shown in FIG. 1 is used as a heat insulation panel 1 for building materials used for wall panels, floor panels, ceiling panels, and the like. Such a heat insulation panel 1 is constructed with the back side fixed to a construction object such as a wall foundation, a floor foundation, or a ceiling foundation.

  This heat insulation panel 1 accommodates two vacuum heat insulating materials 20 and 20 in the space of the digging recess 11 of the base material 10, and the back material made of MDF (medium density fiberboard) or the like in the opening of the digging recess 11. 30 is plugged.

  The base material 10 is made of a wood material having a rectangular shape in plan view, and has a digging recess 11 having an open back side. A surface portion (the bottom portion 11 a of the digging recess 11) is formed on the surface side of the base material 10, and a frame portion 12 is formed on the four circumference sides of the digging recess 11. In addition, the raw material of the base material 10 is not restricted to wood, A metal, a synthetic resin, etc. may be sufficient.

  The space of the digging recess 11 is divided into a plurality (two) of separation cavities in the width direction by a wall portion 16 extending from the bottom portion 11a of the digging recess 11 and integrally formed with the bottom portion 11a along the longitudinal direction. It is divided into 11A and 11A. One vacuum heat insulating material 20 and 20 is accommodated in each of the two separation recesses 11A and 11A. The digging recess 11 may be divided into three or more.

  Further, stepped portions 13 and 13 are formed on the opening side of the digging recess 11. The opening of the heat insulating panel 1 is closed by fitting the back material 30 into the stepped portions 13 and 13 on the opening side. Further, a male part 14 is formed at one end in the width direction of the base material 10, and a female part 15 is formed at the other end.

  The vacuum heat insulating materials 20 and 20 have a rectangular shape in plan view and are accommodated in the separation recesses 11 </ b> A and 11 </ b> A of the base material 10, as shown in the plan view of FIG. 3 corresponding to a third embodiment described later. ing. The dimensions of the vacuum heat insulating materials 20 and 20 substantially match the inner dimensions of the separation recesses 11A and 11A.

  The vacuum heat insulating material 20 is formed by vacuum-sucking the core material with a gas barrier packaging material. As a core material, it is good also as what consists of foams, such as an open-cell urethane foam using a material with comparatively low heat conductivity, a styrene foam, a phenol foam. Alternatively, as the core material, it may be made by pulverizing various foam materials, or it may be made of powder particles such as silica, alumina, pearlite, etc., and it is made of fiber bodies such as glass fiber, glass wool, rock wool, cellulose fiber, etc. Also good. Furthermore, you may make it mix and use the above-mentioned various foams, a granular material, and a fiber body as a core material.

  As the packaging material, a metal film such as an aluminum foil having gas barrier properties is used. Alternatively, a laminate having a protective layer such as a resin film on the outer layer side, a gas barrier layer such as a metal film or a metal vapor deposition layer in the middle, and a heat welding layer such as a resin film having heat weldability on the inner layer side (core material side) A film (sheet) may be used as a packaging material. In addition to the core material, a moisture adsorbent (not shown) is also placed inside the packaging material.

  Such a vacuum heat insulating material 20 is shape | molded corresponding to each shape of the some space of the separation recesses 11A and 11A divided | segmented by the wall part 16, and they are accommodated in each space.

  Thus, since the space of the digging recess 11 is divided into a plurality of separation recesses 11A and 11A in the width direction by the wall portion 16, it is possible to ensure strength against local loads such as stepping on the panel surface. Moreover, since this wall part 16 is integrally formed in the base material 10, it is not necessary to implement the process of installing a bar-like pier to divide the space, and the assemblability is good.

  Next, a heat insulation panel according to the second embodiment of the present invention will be described with reference to FIG.

  This heat insulation panel 1 uses the thing similar to the thing of FIG. 1 about the base material 10, the vacuum heat insulating material 20, and the back surface material 30, but becomes a structure further including the additional heat insulation layers 40 and 40. (See FIG. 2).

  The additional heat insulating layer 40 is disposed on the bottom 11a side of each separation recess 11A so as to be sandwiched between the bottom 11a and the vacuum heat insulating material 20. The additional heat insulating layers 40, 40 are made of a heat insulating material made of a foamed resin molded body such as rigid urethane foam or extruded polystyrene foam.

  If the fin part (not shown in FIG. 2) formed by heat welding of the packaging material in the manufacturing process of the vacuum heat insulating material 20 is folded back to the mounting surface 21 side and becomes thick, the cross-sectional area is There is a risk that it will become a thermal bridge. Therefore, providing the additional heat insulating layers 40 and 40 as in the second and third embodiments can prevent a thermal bridge. In addition, the thick part 24 formed by the fin part 22 and the fin part of the vacuum heat insulating material 20 is demonstrated in FIG. 3 (3rd Embodiment).

  Next, a heat insulating panel according to the third embodiment will be described with reference to FIG.

  Although this heat insulation panel 1 is comprised including the member similar to the thing (2nd Embodiment) of FIG. 2, about the additional heat insulation layer 40, the shape differs.

  That is, as illustrated in FIGS. 3A and 3B, the heat insulating material constituting the additional heat insulating layer 40 is provided with the concave stripes 41 and 41 in advance at both ends in the width direction. By installing the heat insulating material so that the flat surface on which the concave stripes 41, 41 are not formed is arranged on the bottom 11a, 11a side, the step concave portions 47, 47 are formed on the surface side of the additional heat insulating layer 40. Yes.

  A vacuum having thick portions 24, 24 formed by folding back fin portions 22, 22 on the inner bottom of separation recesses 11 A, 11 A having stepped recesses 47, 47 formed at both ends in the width direction as described above. The heat insulating material 20 is disposed so that the thick portions 24 and 24 are fitted in the stepped recesses 47 and 47.

  The thick portions 24 and 24 of the vacuum heat insulating material 20 are formed by folding the fin portions 22 and 22 as described above. As shown in FIG. 3C, the fin portions 22, 22 are formed on each of the two long sides and the two short sides.

  Since the stepped recesses 47 and 47 are provided in the separation recess 11A corresponding to the thick portions 24 and 24 formed on the mounting surface 21 of the vacuum heat insulating material 20 as described above, they are formed at both ends in the width direction. A cavity is not formed between the thick parts 24 and 24. Therefore, it can prevent that the heat insulation panel 1 bends by stepping on.

  In the present embodiment, the step recess 47 is formed along the longitudinal direction so that the thick portion 24 on the long side of the vacuum heat insulating material 20 can be accommodated in the step recess 47, but it is folded back all around. It is good also as a structure which provided the level | step-difference recessed part 47 in the perimeter so that all the fin parts 22 which were measured could be accommodated. Moreover, it is good also as a structure which provided the level | step-difference recessed part which deepened the location corresponding to the corner | angular parts 24a, 24a, ... used as the thickest, and the level | step-difference recessed part corresponding only to the corner | angular parts 24a, 24a, ... It is good also as a structure which provided.

DESCRIPTION OF SYMBOLS 1 Heat insulation panel 10 Base material 11 Excavation recess 11A Separation recess 11a Bottom part 12 Frame part 13 Step part 16 Wall part 20 Vacuum heat insulating material 21 Mounting surface 22 Fin part 24 Thick part 30 Back surface material 40 Additional heat insulation layer 41 Concave Article 47 Step recess

Claims (1)

In the heat insulation panel that houses the vacuum heat insulating material in the recess space of the base material digging,
The space of the digging recess is divided into a plurality of portions in the width direction by a wall portion that extends from the bottom of the digging recess and is formed integrally with the bottom, and the vacuum is divided into each of the divided spaces. Contains insulation ,
An additional heat insulating layer is formed at the bottom of the digging recess,
While the said vacuum heat insulating material has the thick part formed by folding the fin part, the said additional heat insulation layer is a heat insulation panel characterized by the step recessed part being formed in the site | part corresponding to the said thick part .

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