JP2013194470A - Manufacturing method of vacuum insulation panel and heat insulation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of a vacuum insulation panel, capable of manufacturing the vacuum insulation panel by a simple method and suitable for manufacturing the vacuum insulation panel capable of surely forming a wall or a floor or the like with excellent heat insulation, and to provide a heat insulation method capable of surely imparting the excellent heat insulation to a wall, a floor or a ceiling of a building.SOLUTION: The manufacturing method of a vacuum insulation panel is for manufacturing the vacuum insulation panel formed by housing a vacuum insulating material in a foam body. In the manufacturing method of the vacuum insulation panel, the vacuum insulation panel is manufactured by using a planar vacuum insulating material and a planar foam body having a planar shape whose area is larger than that of the vacuum insulating material and thickness is greater than that of the vacuum insulating material, using, as the planar foam body, the planar foam body inside of which a vacuum insulating material housing chamber capable of housing the vacuum insulating material is provided and a side face part of which the vacuum insulating material housing chamber is opened so as to house the vacuum insulating material from the side part to the vacuum insulating material housing chamber, and housing the vacuum insulating material in the vacuum insulating material housing chamber through the opening.

Description

  The present invention relates to a method for manufacturing a vacuum heat insulating panel and a heat insulating method.

In recent years, energy saving is strongly desired from the viewpoint of global warming, and energy saving is an urgent issue for buildings as well.
In particular, in general houses and buildings, it is required to efficiently insulate between areas that require air conditioning and other areas, and there is an increasing demand for heat insulation on the inner walls that partition the rooms.

Under such circumstances, as a material having excellent heat insulation performance, use of a vacuum heat insulating material in which a core material is sealed under reduced pressure in a bag formed of a gas-impermeable sheet has been studied.
However, the vacuum heat insulating material is deteriorated in heat insulation performance when the vacuum is broken, and its effectiveness is not sufficiently exhibited.
As a method for improving this, a plate-like vacuum heat insulating panel in which a vacuum heat insulating material is accommodated in a foam has been studied.

For example, in Patent Document 1 below, a foamable raw material is applied to one of two continuously supplied strip-shaped face materials, and a vacuum heat insulating material is bonded and fixed to the other, embedded in a foam. There is disclosed a manufacturing method for manufacturing a vacuum heat insulating panel in which a vacuum heat insulating material accommodated and contained is sandwiched inside two face materials together with the foam.
A manufacturing method for manufacturing a vacuum heat insulating panel in which a vacuum heat insulating material accommodated in a foam is sandwiched inside two face materials together with the foam is also described in Patent Document 2 below.
Furthermore, Patent Document 3 below discloses a vacuum in which the entire surface of the vacuum heat insulating material is covered with a foam by accommodating the vacuum heat insulating material in a mold when forming a foamable resin bead molded body called a so-called expanded polystyrene. It describes the production of thermal insulation panels.

However, in these methods, in order to completely integrate the foam and the vacuum heat insulating material in advance, a large-scale facility is required, and the vacuum heat insulating material is vacuumed inside the obtained vacuum heat insulating panel. Even if it is torn for some reason, it is difficult to find it, and even if it is found, it is difficult to replace the vacuum insulation.
That is, these vacuum heat insulation panels have a problem that it is difficult to obtain by a simple method and it is difficult to reliably form walls and floors excellent in heat insulation.

JP 2005-161794 A JP 2006-105314 A JP 2005-238552 A

  The present invention is to solve the above-mentioned problems and to be a subject, and can be used to produce a vacuum heat insulation panel by a simple method, and can reliably form a wall, a floor and the like excellent in heat insulation. It is an object of the present invention to provide a method of manufacturing a vacuum heat insulation panel suitable for manufacturing a thermal insulation panel, and thus to provide a heat insulation method capable of reliably imparting excellent heat insulation to a wall, floor, or ceiling of a building. .

  The present invention relating to a method for manufacturing a vacuum heat insulation panel for solving the above problems is a method for manufacturing a vacuum heat insulation panel for producing a vacuum heat insulation panel in which a vacuum heat insulation material is housed in a foam, Using a vacuum heat insulating material and a plate-like foam having a plate shape larger in area than the vacuum heat insulating material and thicker than the vacuum heat insulating material, the vacuum heat insulating material is accommodated inside the plate-like foam A plate-like foam having a possible vacuum heat insulating material storage chamber and opening the vacuum heat insulating material storage chamber in a side surface so that the vacuum heat insulating material storage chamber can receive the vacuum heat insulating material from the side. The vacuum heat insulating panel is produced by storing the vacuum heat insulating material in the vacuum heat insulating material storage chamber through the opening.

  In the method for manufacturing a vacuum heat insulating panel of the present invention, the vacuum is formed in the plate shape by sealing the core material under reduced pressure in a bag formed of a heat-fusible gas-impermeable sheet. It is preferable to use a heat insulating material, and as the vacuum heat insulating material, a vacuum heat insulating material in which a joint seal formed by heat-sealing the edge portions of the sheet is formed outside the sealed portion of the core material. The vacuum heat insulating material is preferably stored in the vacuum heat insulating material storage chamber by folding the joint seal.

  Moreover, in the manufacturing method of the vacuum heat insulation panel of this invention, the said plate-shaped foam is a planar view rectangle, The side surface facing the side part which has opened the said vacuum heat insulating material accommodation chamber in this plate-shaped foam It is preferable that a convex portion having a size capable of entering the opening is provided in the portion.

  Moreover, in the manufacturing method of the vacuum heat insulation panel of this invention, it is preferable that the said plate-shaped foam is provided with two or more said vacuum heat insulating material accommodation chambers opened to the said side part.

  And this invention which concerns on a heat insulation construction method is a heat insulation construction method which arranges a plurality of heat insulation panels in the wall of a building, under the floor, or the ceiling back, and was obtained by the above manufacturing methods as this heat insulation panel It is characterized by using a vacuum insulation panel.

According to the present invention, a plate-like vacuum heat insulating material can be vacuumed only by being housed in a vacuum heat insulating material storage chamber formed in a plate-like foam having a larger area than the vacuum heat insulating material and a thickness greater than the vacuum heat insulating material. A heat insulating panel can be manufactured, and the vacuum heat insulating material accommodation chamber is opened in the side surface portion of the plate-like foam, so that the vacuum heat insulating material accommodation chamber is opened compared to the case where the front surface and the back surface are opened. The area can be reduced, and the necessity of closing the opening with a lid or the like can be reduced.
That is, a vacuum heat insulation panel can be produced by a simple method.
Moreover, the vacuum insulation material can be accommodated in the plate-like foam even at the construction site, and in that case, a vacuum insulation panel is prepared while checking whether there is any abnormality in the vacuum insulation material. Can do.
Therefore, according to the present invention, it is possible to reliably form a wall, a floor or the like excellent in heat insulation.

Moreover, according to the preferable aspect of the present invention as described above, the palm seal of the vacuum heat insulating material is folded and accommodated in the vacuum heat insulating material accommodation chamber. There is no need to ensure a wide opening area, and the occupation ratio of the vacuum heat insulating material to the vacuum heat insulating material accommodation chamber can be improved.
That is, according to the preferable embodiment as described above, it is possible to produce a vacuum heat insulation panel with better heat insulation.

Moreover, according to the preferable aspect of the present invention as described above, the plate-like foam has a rectangular shape in plan view, and the plate-like foam is opposed to a side surface portion that opens the vacuum heat insulating material accommodation chamber. Since the convex portion that can enter the opening is provided on the side surface portion, when the vacuum thermal insulation panels are arranged side by side, the convex portion of one vacuum thermal insulation panel closes the opening of another vacuum thermal insulation panel. It is possible to improve heat insulation and prevent displacement of these vacuum heat insulation panels due to the fitting between the projections and the openings.
That is, according to the preferable aspect as described above, the obtained vacuum heat insulation panel can be made useful by a heat insulation method with simplified work.

Moreover, according to the preferable aspect of this invention as mentioned above, the said plate-shaped foam is equipped with two or more said vacuum heat insulating material accommodation chambers opened in the said side part, Therefore A single vacuum heat insulating material accommodation chamber is provided. The trouble of joining a plurality of vacuum insulation panels provided can be reduced.
In the preferred embodiment of the present invention as described above, the plate-like foam provided with the plurality of vacuum heat insulating material accommodation chambers can be cut and used as necessary, for example, a single vacuum heat insulating material accommodation. It can be processed into a plurality of plate-like foams having a chamber.
That is, according to the preferred embodiment of the present invention as described above, the application range of the obtained vacuum heat insulation panel can be expanded.

  Moreover, according to the heat insulation construction method of this invention, since the vacuum heat insulation panel obtained by the above manufacturing methods is used, the heat insulation excellent in the wall, floor, or ceiling of a building can be provided reliably.

(A) The schematic perspective view which shows a vacuum heat insulating material. (B) The schematic front view which shows a vacuum heat insulating material. (C) Schematic sectional view showing a sectional structure of the vacuum heat insulating material (sectional view taken along line X-X ′ in FIG. 5B). The schematic perspective view which showed a mode that a vacuum heat insulation panel was produced using a plate-shaped foam and a vacuum heat insulating material. The schematic front view which showed the vacuum heat insulation panel of 1st embodiment, and its construction method. (A) The schematic front view which shows the vacuum heat insulation panel of 2nd embodiment. (B) The schematic front view which shows the vacuum heat insulation panel of 3rd embodiment. The schematic front view which shows the vacuum heat insulation panel of 4th embodiment. The schematic perspective view for demonstrating the heat insulation construction method.

Embodiments of the present invention will be described below with reference to the drawings.
First, the vacuum heat insulating material used for the manufacturing method of the vacuum heat insulation panel of this embodiment is demonstrated.
FIG. 1A is a schematic perspective view showing a vacuum heat insulating material 10 used in the vacuum heat insulating panel of this embodiment, and FIG. 1B is a schematic front view of the vacuum heat insulating material 10.
And FIG.1 (c) is the schematic sectional drawing which showed the XX 'arrow cross section shown by the virtual line in FIG.1 (b).

As shown in this cross-sectional view, the vacuum heat insulating material (reference numeral 10) is composed of a core material (reference numeral 11) and an exterior material (reference numeral that is made of a gas-impermeable sheet for sealing the core material under reduced pressure. 12), and the overall shape is a rectangular plate shape.
The core material in the present embodiment is not particularly limited, but it is usually possible to employ a porous body having an air-layer ratio of about 90% processed into a sheet or plate, such as urethane foam, Conventionally known materials such as open cell bodies such as styrene foam and phenol foam, fiber bodies such as glass wool, rock wool, alumina fibers, silica alumina fibers and silica fibers, powders such as perlite, wet silica and dry silica are used. Can be used.

Further, the exterior material is not particularly limited, but a metal laminate film having a three-layer structure of surface protective layer / gas barrier layer / heat seal layer can be used, and a metal laminate film is used as the exterior material. When used, the heat seal layer is formed of a thermoplastic resin such as low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, polyacrylonitrile, or a mixed resin thereof. be able to.
In addition, as the metal laminate film, a film in which the gas barrier layer is formed by a metal foil such as an aluminum foil or a copper foil, or a vapor deposition film of metal atoms such as aluminum or copper can be employed.
Furthermore, as the metal laminate film, a film in which the surface protective layer is formed of a polyamide film, a polyethylene terephthalate film, a polypropylene film, or the like can be employed.

The vacuum heat insulation panel of the present embodiment has a plate-like vacuum heat insulating material, and a plate shape larger in area than the vacuum heat insulating material and thicker than the vacuum heat insulating material, and the vacuum heat insulating material inside. It is comprised using the plate-shaped foam which has the vacuum heat insulating material accommodation chamber which can accommodate a material.
The plate-like foam is not particularly limited, but is integrally formed of a polystyrene foam, a composite foam of polystyrene and polyolefin, an acrylic foam, a vinyl chloride foam, a rigid urethane foam, or the like. Alternatively, it is possible to adopt a structure in which a plurality of divided pieces formed of these foams are joined with an adhesive such as a hot melt adhesive, a reactive curable adhesive, or a pressure sensitive adhesive.
In addition, in the case where the plate-like foam is used as a joined piece, the joining method with a nail, a screw or the like in addition to the adhesive, tape fastening, phase loss, dovetail, seated dovetail, seated sickle joint, It is possible to adopt a joining method using a joint stop such as a stand-up joint or a follow-up large joint.

The plate-like foam is preferably relatively hard to break, and a resin foam such as a composite foam of polystyrene foam and polyolefin, an acrylic foam, or a vinyl chloride foam is preferred.
Of these, vinyl chloride foam is particularly preferred because of its high flame retardancy.

(First embodiment)
Below, 1st embodiment which concerns on the manufacturing method of a vacuum heat insulation panel is described.
In the present embodiment, as shown in FIG. 1, a bag body 12 made of a gas-impermeable aluminum laminate film is employed as the exterior material of the vacuum heat insulating material 10.
The core material 11 is a rectangular plate-shaped porous body having a substantially square outline shape in plan view.

The bag body 12 has an internal volume that can accommodate the core material 11, and more specifically, is wider than the length of one side of the core material 11 that is substantially square in plan view, and the length of the one side. A rectangular aluminum laminate film having a length more than twice the length is half-folded with the heat seal layer facing inward in the form of a crease at the center in the longitudinal direction, and one side and the other through the crease The two sides of the three sides excluding the crease are heat-sealed by heat-sealing to form a bag shape.
And the said vacuum heat insulating material 10 accommodates the said core material 11 in the inside of this bag body from the opening location where the heat sealing of the said bag body 12 is not carried out, and evacuates the inside, and this opening location is made into other 2 sides. The core material is sealed under reduced pressure in the bag body by heat-sealing in the same manner as described above.

Therefore, in the vacuum heat insulating material 10 of this embodiment, the palm seal 12a formed by heat-sealing the aluminum laminate film in a palm state is formed on three side surfaces of the four side surfaces, The joint seal 12 a is formed so as to protrude outward from the outer edge of the sealed portion of the core member 11.
That is, the vacuum heat insulating material of the present embodiment has a joint seal 12 a outside the sealed portion of the core material 11, so that the shape in plan view is a rectangle that is slightly larger than the core material 11. Yes.

In place of the rectangular aluminum laminate film as described above, for example, two aluminum laminate films having a square shape slightly larger than the core material 11 are stacked with the heat seal layer facing inward, A bag body obtained by opening and sealing the remaining three sides can also be used as an exterior material for a vacuum heat insulating material in the same manner as the bag body 12 shown in the figure.
In such a case, in the vacuum heat insulating material obtained by sealing the opening, a joint seal is formed over the entire circumference outside the sealed portion of the core material. Since it is formed of two aluminum laminate films, the protruding joint seal 12a can be folded along the core housing portion and used, and there is little possibility of causing a practical problem.

  For example, a method for manufacturing a vacuum heat insulation panel will be described with reference to FIG. 2. In the method for manufacturing a vacuum heat insulation panel according to the first embodiment, the plate-like vacuum heat insulating material 10 folds the joint seal 12a. And approximately the same size as the core material 11 is used.

Further, in the present embodiment, a rectangular plate-like foam 20 that is one size larger than the vacuum heat insulating material 10 and thicker than the vacuum heat insulating material 10 is used, and the vacuum heat insulating material 10 is located on the side. The plate-like foam 20 in which the vacuum heat insulating material accommodation chamber 21 is opened at the side surface so as to be accommodated in the vacuum heat insulating material accommodation chamber 21 from the side is used.
And the said vacuum heat insulating material 10 is accommodated in the said vacuum heat insulating material accommodation chamber 21 through the said opening 21a, and the vacuum heat insulation panel 1 is produced.

In the manufacturing method of this vacuum heat insulation panel 1, since a vacuum heat insulation panel is formed only by the operation which inserts the vacuum heat insulating material 10 in the said vacuum heat insulation material accommodation chamber 21, compared with the conventional manufacturing method, a vacuum heat insulation panel is simple. Can be produced.
In addition, even if the plate-like foam 20 is used as a joined body of a plurality of divided pieces, it is easy to form the plate-like foam, so one of the two strip-shaped face materials that are continuously supplied. Production of conventional vacuum insulation panels in which a foaming raw material is applied to the other and a vacuum insulation material is bonded and fixed to the other, and the vacuum insulation material covered with foam is sandwiched between the two face materials It is possible to reduce the necessity of using large-scale equipment and dedicated equipment as in the method.
Further, in the present embodiment, since a foam foamed in advance is used, it is possible to prevent the exterior material of the vacuum heat insulating material from being damaged due to heat generated during foaming as in the conventional method. It becomes possible to maintain the thermal insulation effect of a panel over a long period of time.

Furthermore, in this embodiment, since the composite of the plate-like foam and the vacuum heat insulating material can be easily performed, the vacuum heat insulating panel can be produced at the construction site.
And since heat insulation work can be performed by covering the vacuum heat insulating material with plate-like foam, it does not require careful work compared with the case of using only the vacuum heat insulating material and reduces the burden on the operator. It can be made.
Moreover, since the vacuum heat insulating material 10 can be accommodated in the plate-like foam 20 even at the construction site, a vacuum heat insulating panel can be produced while confirming whether the vacuum heat insulating material 10 is normal. In addition, it is possible to reliably form walls and floors with excellent heat insulation.

Moreover, in this embodiment, since the vacuum heat insulating material accommodation chamber 21 of the plate-like foam 20 is opened at the side surface portion of the plate-like foam 20, the vacuum heat insulating material accommodation chamber is opened at the front surface or the back surface. The opening area can be reduced compared to the case where the opening 21a is made, and the necessity of closing the opening 21a with a lid or the like can be reduced.
That is, in this embodiment, a vacuum heat insulation panel can be produced by a simple method.

Furthermore, in this embodiment, since the palm seal 12a is folded and the vacuum heat insulating material 10 is accommodated in the vacuum heat insulating material accommodating chamber 21, the vacuum heat insulating material accommodating chamber 21 and the opening 21a are provided for the palm seal 12a. Therefore, it is possible to improve the occupation ratio of the vacuum heat insulating material 10 with respect to the vacuum heat insulating material accommodation chamber 21.
That is, in this embodiment, the vacuum heat insulation panel 1 can be made more excellent in heat insulation.

  In addition, when folding the palm seal 12a and accommodating the vacuum heat insulating material 10 in the vacuum heat insulating material accommodation chamber 21, the base portion of the palm seal 12a may come into contact with a plate-like foam, other members, tools, or the like. Therefore, if necessary, the surface of the vacuum heat insulating material 10 may be covered with a sheet for protecting the joint seal 12a from physical damage, or the sheet may be attached to the folding position of the joint seal 12a. Good.

Next, a method of using the vacuum heat insulating panel 1 obtained by the manufacturing method of the first embodiment will be described with reference to FIG.
The plate-like foam 20 forming the vacuum heat insulation panel 1 of the first embodiment is rectangular in plan view, and the plate-like foam 20 has a side surface in which the vacuum heat insulating material accommodation chamber 21 is opened. Convex portions 22 (protruding ridges 22) that can enter the openings 21a are provided on the side portions facing the portions.
Therefore, as shown in FIG. 3, one vacuum heat insulation panel 1a is placed vertically with the opening 21a facing upward, and another vacuum heat insulation panel 1b with the opening 21a facing upward is installed on top of it. When the vacuum insulation panels 1a and 1b are arranged side by side, the protrusion 22 of the upper vacuum insulation panel 1b is inserted into the opening 21a of the lower vacuum insulation panel 1a so that the protrusion 22 The opening 21a can be closed.
That is, in this embodiment, the heat insulation can be improved and the displacement of the two vacuum heat insulation panels 1a and 1b due to the concave and convex fitting between the convex portion 22 and the opening 21a can be prevented.
That is, the vacuum heat insulation panel 1 of this embodiment can provide a heat insulation method with simplified work.

  In order to obtain the above effect more reliably, the protruding height of the convex portion 22 is usually set to about 5 to 20 mm (for example, about 10 mm).

(Second embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG.
The vacuum heat insulation panel 1 of the second embodiment is formed by using a plate-like foam body 20 having a rectangular shape in plan view and having substantially the same area as when two vacuum heat insulation panels of the first embodiment are arranged side by side. The
In addition, the rectangular plate-like foam 20 includes a plurality of the vacuum heat insulating material accommodation chambers 21 opened in the side portion on the long side, and in the present embodiment, the plate-like foam 20 has a first shape. Two vacuum heat insulating material storage chambers, a vacuum heat insulating material storage chamber 21 ′ and a second vacuum heat insulating material storage chamber 21 ″, are provided.
Therefore, in this second embodiment, the first vacuum heat insulating material 10 is accommodated in each of the first vacuum heat insulating material accommodating chamber 21 ′ and the second vacuum heat insulating material accommodating chamber 21 ″. The vacuum heat insulation panel which has the magnitude | size for two vacuum heat insulation panels of a form can be obtained.

  In addition, the vacuum heat insulation panel 1 produced in this 2nd embodiment has the said vacuum heat insulating material accommodation chamber 21 opened in the side part of the long side of this rectangular plate-shaped foam 20 as a 1st vacuum heat insulation material accommodation chamber. Except for having two of 21 'and 2nd vacuum heat insulating material accommodation chamber 21 ", it forms similarly to the vacuum heat insulation panel of 1st embodiment.

In the vacuum heat insulation panel 1 of the second embodiment, as shown in the drawing, the first vacuum heat insulation material accommodation chamber 21 ′ and the second vacuum heat insulation material accommodation chamber 21 ″ are opened in the same side surface portion. A partition portion 23 that partitions these vacuum heat insulating material accommodation chambers 21 ′ and 21 ″ is formed in the plate-like foam 20.
And this partition part 23 is formed with the resin foam like the other part of the said plate-shaped foam 20, and is formed so that the longitudinal direction center part of the plate-shaped foam 20 may be crossed.
Therefore, the vacuum heat insulation panel 1 of this 2nd embodiment cut | disconnects the plate-like foam 20 so that it may pass through the partition part 23, and the 1st vacuum heat insulation material accommodation chamber side, the 2nd vacuum heat insulation material accommodation chamber side, It can be divided into two.

  That is, the vacuum heat insulation panel 1 of the second embodiment can not only secure the laying area for two vacuum heat insulation panels of the first embodiment at a time but also the vacuum heat insulation panel of the first embodiment as needed. It can be used as a panel and can be used flexibly.

Regarding the point at which the vacuum heat insulation panel can be divided into a plurality of parts, the side surface portions where the first vacuum heat insulation material accommodation chamber 21 ′ and the second vacuum heat insulation material accommodation chamber 21 ″ are opened are different. For example, the first vacuum heat insulating material accommodating chamber 21 ′ is opened on one long side, and the second vacuum heat insulating material accommodating chamber 21 ″ is opened by the first vacuum heat insulating material accommodating chamber 21 ′. It is the same in that it can be divided even if it is opened on the long side different from the side where it is present or the second vacuum heat insulating material accommodation chamber 21 ″ is opened on the short side.
Furthermore, the partition 23 is cut even if the first vacuum heat insulating material accommodating chamber 21 ′ is opened on one short side and the second vacuum heat insulating material containing chamber 21 ″ is opened on the other short side. This is the same in that it can be divided into two vacuum insulation panels.
However, in such a case, when carrying the vacuum insulation panel, it was accommodated from the remaining opening in order to prevent the vacuum insulation material from dropping from the opening of any vacuum insulation material accommodation chamber. There is a possibility that the vacuum heat insulating material may be easily dropped.
Therefore, in order to make it easy to carry, it can be said that when a plurality of vacuum heat insulating material accommodation chambers are provided, it is preferable to open the same side portion.

(Third embodiment)
Next, a third embodiment will be described with reference to FIG.
This third embodiment is also common to the second embodiment in that a plurality of vacuum heat insulating materials 10 are accommodated in one plate-like foam 20.
On the other hand, in this third embodiment, the point of using a plate-like foam 20 that can accommodate a plurality of vacuum heat insulating materials 10 in one vacuum heat insulating material storage chamber 21 is different from the above-described embodiment. Specifically, a plate-like foam 20 that can accommodate three of the illustrated vacuum heat insulating materials 10 is used.
Also in the third embodiment, the plurality of vacuum heat insulating materials 10 are accommodated in the single plate-like foam 20 in the same manner as in the second embodiment, thereby having the size of the plurality of vacuum heat insulating panels of the first embodiment. A vacuum heat insulation panel can be obtained, and at the time of construction, a laying area for a plurality of vacuum heat insulation panels of the first embodiment can be secured at a time.
And the vacuum heat insulation panel 1 of this 3rd embodiment has a small opening area with respect to the number of the vacuum heat insulating materials 10 accommodated compared with the vacuum heat insulation panel of 2nd embodiment, and it can be said that it is advantageous from a heat insulation viewpoint. .

In the present embodiment, a structure in which three pieces of the vacuum heat insulating material 10 are continuously provided is prepared in advance, and this is accommodated in the plate-like foam 20 or the vacuum heat insulation exemplified so far. It is also possible to accommodate a long plate-like vacuum heat insulating material having an area three times that of the material 10 in the plate-like foam 20.
Although not described in detail here, for example, a vacuum heat insulating panel that can be divided as in the second embodiment by using a plate-like foam provided with a plurality of vacuum heat insulating material accommodation chambers that can accommodate a plurality of vacuum heat insulating materials. It is also possible to form.

(Fourth embodiment)
Next, a fourth embodiment will be described with reference to FIG.
In the fourth embodiment, a rectangular plate shape and a plate-like foam body 20 that opens a vacuum heat insulating material accommodation chamber on two sides adjacent to each other through one corner portion are used as described above. Is different.
Further, the plate-like foam 20 used in the fourth embodiment is formed with convex portions 22 that can enter the opening 21a on the remaining two sides other than the two sides that are open.
Accordingly, in this fourth embodiment, two openings 21a for accommodating the vacuum heat insulating material 10 in the plate-like foam 20 are provided, and the vacuum heat insulating material 10 is accommodated (vacuum heat insulating panel 1). Manufacturing process) can be facilitated.
Moreover, the vacuum heat insulation panel 1 obtained in the fourth embodiment has openings 21a on two sides adjacent to each other via one corner, and is adjacent to each other via a corner that is a diagonal of the corner. Since the projections 22 are provided on the sides, when the vacuum insulation panel 1 is arranged vertically and horizontally, the openings 21a and the projections 22 are used to fit the recesses and projections between the adjacent vacuum insulation panels in both the longitudinal and lateral directions. It is excellent in that it can be combined.

(Other cases)
In addition, various aspects other than the said illustration can be employ | adopted for this invention.
For example, the plate-like foam does not have to be a rectangular plate shape, and may be a triangle, a pentagon or more polygon, a circle, an L shape, or any combination thereof.

(Insulation method)
It can be said that the vacuum heat insulation panel obtained by the manufacturing method of such a vacuum heat insulation panel is useful for the heat insulation method as shown, for example in FIG.
FIG. 6 is a diagram showing a floor thermal insulation method, in which reference numeral 100 represents a large pull, reference numeral 110 represents a plywood stretched over the large pull 100, and reference numeral 120 represents the large pull 100. The joists fixed on the plywood 110 are shown so as to be orthogonal to the extending direction.
And the vacuum heat insulation panel 1 obtained by this embodiment can be used in the form dropped in between the joists.

For example, if the joists 120 are arranged at a pitch of 303 mm, the vacuum heat insulation panel 1 is suitable for laying the joists between the width 250 to 280 mm and an integral multiple of the length 303 mm.
Further, considering the case where a 45 mm square material or a 60 mm square material is used as the joist, it is preferable that the vacuum heat insulating panel 1 has a thickness of 45 mm or less (for example, 30 to 40 mm).
Also, considering the case where a 60 mm square is used as the joist, the inner method is 243 mm, so the width of the vacuum heat insulating material 10 accommodated in the vacuum heat insulating panel 1 is 240 mm or less (for example, 200 to 220 mm). As mentioned above, it is preferable that the plate-like foam be cut into the joists if necessary.

When such a heat insulation method is adopted, a plywood is further stretched on the joists and a floor finish material is stretched, but even if it is stepped on by an operator at that time The vacuum heat insulation panel 1 of this embodiment can suppress damage to the internal vacuum heat insulating material because the surface is protected by the foam.
That is, in this embodiment, the heat insulation excellent in the floor of a building can be provided reliably.

In addition, the vacuum heat insulation panel of this embodiment can be arrange | positioned not only between joists but between large draws, and can be utilized for floor insulation.
Moreover, the vacuum heat insulation panel of this embodiment can be arranged in multiple numbers not only under the floors, such as a joist and a large draw, but in a wall and a ceiling back, and can form the heat insulation structure of a building.
For example, if it is a framed building, it can be arranged between rafters, beams, pillars, studs, etc., and if it is a building with a wooden frame wall construction method such as two-by-four, multiple floors are arranged between the frame members. Further, a heat insulating structure can be formed on the ceiling, outer wall, inner wall and the like.

  Moreover, the vacuum heat insulation panel obtained by the manufacturing method of the present embodiment can be used by being embedded in the soil concrete of a building having underfloor heating in which a heater is embedded between concrete soils. Is available.

DESCRIPTION OF SYMBOLS 1 Vacuum heat insulation panel 10 Vacuum heat insulating material 11 Core material 12 Bag body 12a Joint seal 20 Plate-shaped foam 21 Vacuum heat insulating material accommodation chamber 21a Opening 22 Protruding part 23 Partition part 120 Radish

Claims (5)

A method for manufacturing a vacuum insulation panel for producing a vacuum insulation panel comprising a vacuum insulation material contained in a foam,
Using a plate-like vacuum heat insulating material and a plate-like foam having a plate shape larger in area than the vacuum heat insulating material and thicker than the vacuum heat insulating material, the vacuum heat insulating material is used as the plate-like foam inside. A plate-like foam having a vacuum heat insulating material storage chamber capable of storing a material and having the vacuum heat insulating material storage chamber open at a side surface so that the vacuum heat insulating material storage chamber can receive the vacuum heat insulating material from the side. A method for manufacturing a vacuum heat insulating panel, comprising: using a body to house the vacuum heat insulating material in the vacuum heat insulating material storage chamber through the opening.   Using the vacuum heat insulating material formed in the plate shape by sealing the core material under reduced pressure in an exterior material formed of a heat-fusible gas-impermeable sheet, the core material is used as the vacuum heat insulating material. A vacuum heat insulating material in which a palm seal formed by heat-sealing the edge portions of the sheet is formed outside the sealed portion, and the vacuum heat insulating material is folded by folding the palm seal and the vacuum heat insulating material is used. The manufacturing method of the vacuum heat insulation panel of Claim 1 made to accommodate in a material storage chamber.   The plate-like foam has a rectangular shape in plan view, and the plate-like foam has a convex portion having a size capable of entering the opening into a side surface opposite to a side surface opening the vacuum heat insulating material accommodation chamber. The manufacturing method of the vacuum heat insulation panel of Claim 1 or 2 provided.   The manufacturing method of the vacuum heat insulation panel of any one of Claim 1 thru | or 3 with which the said plate-shaped foam is provided with two or more said vacuum heat insulating material accommodation chambers opened in the said side part. A heat insulation method in which a plurality of heat insulation panels are arranged in a building wall, under the floor, or behind the ceiling,
The heat insulation construction method using the vacuum heat insulation panel obtained by the manufacturing method of the vacuum heat insulation panel of any one of Claims 1 thru | or 4 as the said heat insulation panel.

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