US20100281806A1 - Heat insulating panel and heat insulating structure - Google Patents
Heat insulating panel and heat insulating structure Download PDFInfo
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- US20100281806A1 US20100281806A1 US12/743,235 US74323508A US2010281806A1 US 20100281806 A1 US20100281806 A1 US 20100281806A1 US 74323508 A US74323508 A US 74323508A US 2010281806 A1 US2010281806 A1 US 2010281806A1
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- Prior art keywords
- heat
- heat insulation
- insulation
- vacuum heat
- panel
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- 238000009413 insulation Methods 0.000 claims abstract description 101
- 239000012774 insulation material Substances 0.000 claims abstract description 69
- 239000006260 foam Substances 0.000 claims abstract description 50
- 239000011347 resin Substances 0.000 claims abstract description 44
- 229920005989 resin Polymers 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000011229 interlayer Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000007373 indentation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
- E04B1/803—Heat insulating elements slab-shaped with vacuum spaces included in the slab
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/242—Slab shaped vacuum insulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/10—Insulation, e.g. vacuum or aerogel insulation
Definitions
- This invention relates to a heat insulation panel and a heat insulation structure, and specifically to a heat insulation panel, which is economical and is excellent in heat insulating properties, handling, installation and the like, and also to a heat insulation structure making use of a plurality of such heat insulation panels.
- Patent Document 1 JP-A-2004-278632
- the heat insulation panel disclosed in Patent Document 1 is composed of a resin foam 1 and a vacuum heat-insulation material 2 embedded therein.
- heat insulating properties are not considered to be sufficient in that the vacuum heat-insulation material 2 does not exist at a part indicated by arrows in FIG. 6 and thermal radiation cannot be satisfactorily shielded there, although a synergism of the effects of the vacuum heat-insulation materials 2 and the effects of the resin foams 1 can be expected.
- a panel may be assembled by jointing vacuum heat-insulation materials together. However, such a panel may itself be unable to retain sufficient rigidity unless adhesion is sufficient at the joints.
- aspects of the present invention are, therefore, to provide a heat insulation panel, which is economical and is excellent in heat insulating properties, handling, installation and the like, and also a heat insulation structure making use of a plurality of such heat insulation panels.
- the present invention provides a heat insulation panel with a plate-shaped vacuum heat-insulation material embedded in a board-shaped resin foam, wherein, when the heat insulation panel is brought into abutment with another heat insulation panel of same dimensions and structure at proximal edges thereof, the vacuum heat-insulation materials in the respective heat insulation panels are in a relationship that the vacuum heat-insulation materials overlap with each other at proximal end portions thereof as viewed in a thickness direction of the heat insulation panels.
- an overlap width of the vacuum heat-insulation materials themselves, which are in the mutually-overlapping relationship is from 5 to 80 mm as viewed in a width direction of the heat insulation panels; that the board-shaped resin foam is composed of two rectangular resin foams of same dimensions overlapping one over the other and changed in position relative to each other in a length direction and/or width direction thereof, and the two rectangular resin foams are provided with plate-shaped vacuum heat-insulation materials encapsulated therein, respectively; or that the board-shaped resin foam is composed of two rectangular resin foams of different lengths and/or widths overlapping one over the other with centerlines thereof coincided with each other, and larger one of the two rectangular resin foams is provided with the plate-shaped vacuum heat-insulation material encapsulated therein.
- the present invention also provides a heat insulation structure comprising a plurality of heat insulation panels according to the present invention, wherein the heat insulation panels are arranged in abutment with each other at proximal edges thereof such that plate-shaped vacuum heat-insulation materials thereof overlap with each other at proximal end portions thereof as viewed in a thickness direction of the heat insulation panels.
- a heat insulation panel which is economical and is excellent in heat insulating properties, handling, installation and the like, and also a heat insulation structure making use of a plurality of such heat insulation panels.
- a heat insulation panel 10 includes a board-shaped resin foam A, which is composed of two rectangular resin foams 1 , 1 of same dimensions overlapping one over the other and changed in position relative to each other in a width direction (or a length direction) thereof, and the two rectangular resin foams are provided with vacuum heat-insulation materials 2 , 2 encapsulated therein, respectively.
- the resin foams 1 , 1 and the vacuum heat-insulation materials 2 , 2 are in a relationship that, when two of such heat insulation panels (one of which is indicated by dotted lines) are brought into abutment with each other at proximal edges thereof, the lower vacuum heat-insulation material 2 in one of the heat insulation panels and an upper vacuum heat-insulation material 2 ′ in the adjacent heat-insulation panel (which is indicated by the dotted lines) overlap one over the other at proximal end portions ⁇ , ⁇ ′ thereof as viewed in a thickness direction of the heat insulation panels.
- the panel-shaped resin foam A is composed of the two rectangular resin foams 1 , 1 of the same dimensions overlapping one over the other and changed in position relative to each other in the width direction thereof.
- the two resin foams 1 , 1 may be changed in position relative to each other in the length direction thereof (not illustrated).
- a panel-shaped resin foam A may also be composed of two rectangular resin foams 1 , 1 of same dimensions overlapping one over the other and changed in position relative to each other in a width direction and length direction thereof.
- a heat insulation panel 10 includes a panel-shaped resin foam A, which is composed of two rectangular resin foams 1 , 1 of different widths overlapping one over the other with centerlines thereof coincided with each other, and larger one of the two rectangular resin foams 1 , 1 is provided with a vacuum heat-insulation material 2 encapsulated therein. Similar to the embodiment shown in FIG. 3
- the resin foams 1 , 1 and the vacuum heat-insulation material 2 are in a relationship that, when two of such heat insulation panels 1 , 1 (one of which is indicated by dotted lines) are brought into abutment with each other at proximal edges thereof, the vacuum heat-insulation materials 2 , 2 in the respective heat insulation panels overlap one over the other at proximal end portions ⁇ , ⁇ ′ thereof as viewed in a thickness direction of the heat insulation panels.
- the panel-shaped resin foam A is composed of the two rectangular resin foams 1 , 1 of different widths overlapping one over the other with the centerlines thereof coincided with each other.
- the resin foam 1 located on the lower side as viewed in the drawing may be smaller in both width and length than the resin foam located on the upper side.
- FIG. 4 a There are shown a side view of the heat insulation panel 10 according to this modification in FIG. 4 a , its top plan view in FIG. 4 b , its cross-sectional view taken along line A-A′ of FIG. 4 a in FIG. 4 c , and its cross-sectional view taken along line B-B′ of FIG. 4 b in FIG. 4 d .
- the remaining construction of the heat insulation panel according to this modification is the same as that of the embodiment illustrated in FIG. 3 .
- the vacuum heat-insulation materials in the adjacent heat insulation panels overlap one over the other at proximal end portions thereof as viewed in a thickness direction of the heat insulation panels. Therefore, the heat insulation panels can reflect thermal radiation from everywhere the interior or exterior of a room or the like, and are provided with pronouncedly-improved heat insulating properties.
- the above-described resin foams may each be a foam of any resin, with a polyurethane-based foam being preferred from the standpoint of moldability.
- a polyurethane foam can be obtained in a desired shape by mixing a polyol component, a polyisocyanate component and a foaming agent, pouring the mixture into a mold cavity of the desired shape, and then subjecting the mixture to expansion molding. From the standpoint of a balance between heat insulating properties and strength, the expansion ratio of the foam may preferably be from 5 to 50 times or so.
- Each vacuum heat-insulation material for use in the present invention is a heat insulation material that a core material formed of laminated glass fibers is encapsulated in a barrier envelope and the barrier envelope is depressurized.
- a vacuum heat-insulation material itself is known, and any known vacuum heat-insulation material can be used in the present invention.
- a preferred vacuum heat insulation material may include, as an envelope, at least one metallized layer as in an aluminum-metallized polyethylene film. The inclusion of such a metallized layer can provide improved heat insulating properties (heat shielding properties) especially in summer.
- the vacuum heat-insulation material may generally be from 3 to 20 mm or so in thickness and from 190 to 1,300 mm ⁇ 190 to 1,300 mm or so in size.
- a heat insulation panel member 20 of a construction depicted in FIG. 5 (which corresponds to an upper half above a thick dashed line in FIG. 1 ) is molded by pouring a polyurethane formulation into a mold cavity of a predetermined shape with a vacuum heat-insulation material 2 held at a predetermined position in the mold cavity, and then subjecting the polyurethane formulation to expansion molding.
- Two of such heat insulation panels molded as described above are then integrated together with their positions shifted relative to each other in a width direction (and/or a length direction) to obtain the heat insulation panel 10 shown in FIG. 1 .
- the heat insulation panel 10 illustrated in FIG. 3 can be obtained by molding an unillustrated resin foam (which corresponds to a lower half below a thick dashed line in FIG. 3 ), which is similar to the heat insulation panel member 20 depicted in FIG. 5 but does not include the encapsulated vacuum heat-insulation material 2 and is smaller in width (and/or length) than the heat insulation panel member 20 , and integrating the resin foam with the heat insulation panel member 20 with their centerlines coincided with each other.
- its length (L) may be from 200 to 2,000 mm or so, with from 900 to 1,800 mm being more preferred.
- a length (L) smaller than 200 mm results in inferior thermal performance, while a length (L) greater than 2,000 mm leads to deteriorations in shipping ease and installation.
- Lengths (L) outside the above-described range are therefore not preferred.
- its width (W) may be preferably from 200 mm or greater, more preferably from 400 to 1,500 mm or so.
- Its thickness (H) may be from 30 to 100 mm or so, and its indentation (a) may be from 10 to 110 mm or so, with from 40 to 90 mm being preferred.
- the width (b) of the upper or lower half in the whole heat insulation panel may be from 350 to 1,450 mm or so, and the thickness (c) of the upper or lower half may be from 15 to 50 mm or so.
- Each vacuum heat-insulation material 2 has a length similar to the above-described length (L) of the foam, and its thickness and size are similar to those described above.
- the distance (d) between an end edge of each vacuum heat-insulation material 2 and a proximal end edge of its corresponding resin foam 1 may be from 3 to 20 mm or so.
- the dimensions of the upper half above the thick dashed line in the figure may be similar to those of the above-described heat insulation panel member 20
- the thickness of the lower half below the thick dashed line may be similar to the above-described thickness (c)
- the indentation (a) may be similar to the above-described indentation (a).
- the overlap widths ⁇ ′, ⁇ of the upper and lower, vacuum heat-insulation materials 2 may each be 5 mm or greater, preferably from 30 to 80 mm.
- An overlap width smaller than 5 mm leads not only to difficulty in holding panels in abutment with each other but also to inferior thermal performance.
- An overlap width greater than 80 mm results in a reduction in the strength of the edge portion of each panel.
- the inter-layer spacing (e) between the vacuum heat-insulation materials may preferably be 6 mm or greater for excellent heat insulating properties, with from 20 to 50 mm being more preferred.
- Such heat insulation panels according to the present invention as described above are useful as heat insulation materials for various walls, ceilings, floors and roofs in a wide range of buildings and also as heat insulation materials for various cool boxes, insulated trucks or vans, refrigerators, vehicles and the like, and have excellent heat insulating properties and installation convenience.
- Heat insulation panels each of which had the construction of the embodiment shown in FIG. 1 and included two vacuum heat-insulation materials encapsulated in board-shaped resin foams, respectively, were formed as Examples 1-6 with the overlap width ⁇ of each vacuum heat-insulation material varied to 2.5 mm, 5 mm, 10 mm, 30 mm, 50 mm and 90 mm, respectively.
- thermal performance heat transmission coefficient
- Heat insulation panels each of which had the construction of the embodiment shown in FIG. 3 and included one vacuum heat-insulation material encapsulated in a board-shaped resin foam, were formed as Examples 7-12 with the overlap width ⁇ of the vacuum heat-insulation material varied to 2.5 mm, 5 mm, 10 mm, 30 mm, 50 mm and 90 mm, respectively.
- thermal performance heat transmission coefficient
- thermoelectric panel which is economical and is excellent in heat insulating properties, handling, installation and the like, and also a heat insulation structure making use of a plurality of such heat insulation panels.
- FIG. 1 is a perspective view illustrating a heat insulation panel according to the present invention.
- FIG. 2 is a view illustrating a modification of FIG. 1 .
- FIG. 3 is a perspective view illustrating another heat insulation panel according to the present invention.
- FIG. 4 is a view illustrating a modification of FIG. 3 .
- FIG. 5 is a view illustrating a conventional heat insulation panel.
- FIG. 6 is a view illustrating conventional heat insulation panels.
Abstract
A heat insulation panel includes a plate-shaped vacuum heat-insulation material embedded in a board-shaped resin foam. When the heat insulation panel is brought into abutment with another heat insulation panel of same dimensions and structure at proximal edges thereof, the vacuum heat-insulation materials in the respective heat insulation panels are in a relationship that the vacuum heat-insulation materials overlap with each other at their proximal end portions as viewed in a thickness direction of the heat insulation panels. The heat insulation panel is economical and is excellent in heat insulating properties, handling, installation and the like. A heat insulation structure making use of a plurality of such heat insulation panels is also provided.
Description
- This application is a U.S. national phase filing under 35 U.S.C. §371 of PCT Application No. PCT/JP2008/071498, filed Nov. 27, 2008, which claims priority to Japanese Patent Application No. 2007-306419 filed on Nov. 27, 2007, the entire disclosures of which being incorporated herein, and to which all priority rights are hereby claimed.
- This invention relates to a heat insulation panel and a heat insulation structure, and specifically to a heat insulation panel, which is economical and is excellent in heat insulating properties, handling, installation and the like, and also to a heat insulation structure making use of a plurality of such heat insulation panels.
- Diversified heat insulation materials have been used to date in various walls, ceilings, floors and roofs of a wide range of buildings to heighten air-conditioning effects. As these heat insulation materials, resin foams such as polyethylene foams and polyurethane foams are widely used from the standpoints of moldability and cost. A variety of heat insulation materials are also used in various cool boxes, insulated trucks or vans, refrigerators, vehicles and the like to improve thermal insulation effects or air-conditioning effects. As it is essential for these heat insulation materials to have a small thickness, so-called vacuum heat-insulation materials are used. To further improve heat insulating effects, composite heat insulation materials with vacuum heat-insulation materials encapsulated therein are also used (Patent Document 1).
- As illustrated in
FIG. 5 , the heat insulation panel disclosed inPatent Document 1 is composed of aresin foam 1 and a vacuum heat-insulation material 2 embedded therein. When many of such heat insulation panels are installed in abutment with each other for heat insulation purposes, heat insulating properties are not considered to be sufficient in that the vacuum heat-insulation material 2 does not exist at a part indicated by arrows inFIG. 6 and thermal radiation cannot be satisfactorily shielded there, although a synergism of the effects of the vacuum heat-insulation materials 2 and the effects of theresin foams 1 can be expected. - It may also be contemplated to lap-joint vacuum heat-insulation materials together. It is, however, not easy to manufacture lap-joint vacuum heat-insulation materials. A panel may be assembled by jointing vacuum heat-insulation materials together. However, such a panel may itself be unable to retain sufficient rigidity unless adhesion is sufficient at the joints.
- Aspects of the present invention are, therefore, to provide a heat insulation panel, which is economical and is excellent in heat insulating properties, handling, installation and the like, and also a heat insulation structure making use of a plurality of such heat insulation panels.
- The above-described aspects can be achieved by the present invention to be described hereinafter. Described specifically, the present invention provides a heat insulation panel with a plate-shaped vacuum heat-insulation material embedded in a board-shaped resin foam, wherein, when the heat insulation panel is brought into abutment with another heat insulation panel of same dimensions and structure at proximal edges thereof, the vacuum heat-insulation materials in the respective heat insulation panels are in a relationship that the vacuum heat-insulation materials overlap with each other at proximal end portions thereof as viewed in a thickness direction of the heat insulation panels.
- In the present invention, it is preferred that an overlap width of the vacuum heat-insulation materials themselves, which are in the mutually-overlapping relationship, is from 5 to 80 mm as viewed in a width direction of the heat insulation panels; that the board-shaped resin foam is composed of two rectangular resin foams of same dimensions overlapping one over the other and changed in position relative to each other in a length direction and/or width direction thereof, and the two rectangular resin foams are provided with plate-shaped vacuum heat-insulation materials encapsulated therein, respectively; or that the board-shaped resin foam is composed of two rectangular resin foams of different lengths and/or widths overlapping one over the other with centerlines thereof coincided with each other, and larger one of the two rectangular resin foams is provided with the plate-shaped vacuum heat-insulation material encapsulated therein.
- The present invention also provides a heat insulation structure comprising a plurality of heat insulation panels according to the present invention, wherein the heat insulation panels are arranged in abutment with each other at proximal edges thereof such that plate-shaped vacuum heat-insulation materials thereof overlap with each other at proximal end portions thereof as viewed in a thickness direction of the heat insulation panels.
- According to the present invention, it is possible to provide a heat insulation panel, which is economical and is excellent in heat insulating properties, handling, installation and the like, and also a heat insulation structure making use of a plurality of such heat insulation panels.
- Based on preferred embodiments shown in drawings, the present invention will next be described in further detail.
- As shown in
FIG. 1 , aheat insulation panel 10 according to one embodiment of the present invention includes a board-shaped resin foam A, which is composed of tworectangular resin foams insulation materials resin foams insulation materials insulation material 2 in one of the heat insulation panels and an upper vacuum heat-insulation material 2′ in the adjacent heat-insulation panel (which is indicated by the dotted lines) overlap one over the other at proximal end portions α,α′ thereof as viewed in a thickness direction of the heat insulation panels. - In the
heat insulation panel 10 shown inFIG. 1 , the panel-shaped resin foam A is composed of the tworectangular resin foams resin foams FIG. 2 , a panel-shaped resin foam A may also be composed of tworectangular resin foams FIG. 2 a, its top plan view inFIG. 2 b, its cross-sectional view taken along line A-A′ ofFIG. 2 a inFIG. 2 c, and its cross-sectional view taken along line B-B′ ofFIG. 2 b inFIG. 2 d. The remaining construction of the heat insulation panel according to this modification is the same as that of the embodiment shown inFIG. 1 . - As illustrated in
FIG. 3 , aheat insulation panel 10 according to another embodiment of the present invention includes a panel-shaped resin foam A, which is composed of tworectangular resin foams rectangular resin foams insulation material 2 encapsulated therein. Similar to the embodiment shown inFIG. 1 , theresin foams insulation material 2 are in a relationship that, when two of suchheat insulation panels 1,1 (one of which is indicated by dotted lines) are brought into abutment with each other at proximal edges thereof, the vacuum heat-insulation materials - In the
heat insulation panel 10 illustrated inFIG. 3 , the panel-shaped resin foam A is composed of the tworectangular resin foams FIG. 4 , however, theresin foam 1 located on the lower side as viewed in the drawing may be smaller in both width and length than the resin foam located on the upper side. There are shown a side view of theheat insulation panel 10 according to this modification inFIG. 4 a, its top plan view inFIG. 4 b, its cross-sectional view taken along line A-A′ ofFIG. 4 a inFIG. 4 c, and its cross-sectional view taken along line B-B′ ofFIG. 4 b inFIG. 4 d. The remaining construction of the heat insulation panel according to this modification is the same as that of the embodiment illustrated inFIG. 3 . - When a plurality of such
heat insulation panels 10 according to the present invention are installed in abutment with each other on a wall surface or the like for heat insulation purposes as shown inFIG. 1 orFIG. 3 , the vacuum heat-insulation materials in the adjacent heat insulation panels overlap one over the other at proximal end portions thereof as viewed in a thickness direction of the heat insulation panels. Therefore, the heat insulation panels can reflect thermal radiation from everywhere the interior or exterior of a room or the like, and are provided with pronouncedly-improved heat insulating properties. - The above-described resin foams may each be a foam of any resin, with a polyurethane-based foam being preferred from the standpoint of moldability. A polyurethane foam can be obtained in a desired shape by mixing a polyol component, a polyisocyanate component and a foaming agent, pouring the mixture into a mold cavity of the desired shape, and then subjecting the mixture to expansion molding. From the standpoint of a balance between heat insulating properties and strength, the expansion ratio of the foam may preferably be from 5 to 50 times or so.
- Each vacuum heat-insulation material for use in the present invention is a heat insulation material that a core material formed of laminated glass fibers is encapsulated in a barrier envelope and the barrier envelope is depressurized. Such a vacuum heat-insulation material itself is known, and any known vacuum heat-insulation material can be used in the present invention. A preferred vacuum heat insulation material may include, as an envelope, at least one metallized layer as in an aluminum-metallized polyethylene film. The inclusion of such a metallized layer can provide improved heat insulating properties (heat shielding properties) especially in summer. The vacuum heat-insulation material may generally be from 3 to 20 mm or so in thickness and from 190 to 1,300 mm×190 to 1,300 mm or so in size.
- No particular limitation is imposed on a process for the formation of the above-described heat insulation panels according to the present invention, each of which is composed of the resin foams and the vacuum heat-insulation material or materials. As a preferred example, however, the following process can be mentioned. In the case of the embodiment shown in
FIG. 1 , a heatinsulation panel member 20 of a construction depicted inFIG. 5 (which corresponds to an upper half above a thick dashed line inFIG. 1 ) is molded by pouring a polyurethane formulation into a mold cavity of a predetermined shape with a vacuum heat-insulation material 2 held at a predetermined position in the mold cavity, and then subjecting the polyurethane formulation to expansion molding. Two of such heat insulation panels molded as described above are then integrated together with their positions shifted relative to each other in a width direction (and/or a length direction) to obtain theheat insulation panel 10 shown inFIG. 1 . - On the other hand, the
heat insulation panel 10 illustrated inFIG. 3 can be obtained by molding an unillustrated resin foam (which corresponds to a lower half below a thick dashed line inFIG. 3 ), which is similar to the heatinsulation panel member 20 depicted inFIG. 5 but does not include the encapsulated vacuum heat-insulation material 2 and is smaller in width (and/or length) than the heatinsulation panel member 20, and integrating the resin foam with the heatinsulation panel member 20 with their centerlines coincided with each other. - A description will next be made about the sizes of the
heat insulation panels 10 according to the present invention. In theheat insulation panel 10 shown inFIG. 1 , its length (L) may be from 200 to 2,000 mm or so, with from 900 to 1,800 mm being more preferred. A length (L) smaller than 200 mm results in inferior thermal performance, while a length (L) greater than 2,000 mm leads to deteriorations in shipping ease and installation. Lengths (L) outside the above-described range are therefore not preferred. For the same reasons as mentioned above with respect to the length (L), its width (W) may be preferably from 200 mm or greater, more preferably from 400 to 1,500 mm or so. - Its thickness (H) may be from 30 to 100 mm or so, and its indentation (a) may be from 10 to 110 mm or so, with from 40 to 90 mm being preferred. The width (b) of the upper or lower half in the whole heat insulation panel may be from 350 to 1,450 mm or so, and the thickness (c) of the upper or lower half may be from 15 to 50 mm or so. Each vacuum heat-
insulation material 2 has a length similar to the above-described length (L) of the foam, and its thickness and size are similar to those described above. The distance (d) between an end edge of each vacuum heat-insulation material 2 and a proximal end edge of itscorresponding resin foam 1 may be from 3 to 20 mm or so. - In the heat insulation panel illustrated in
FIG. 3 , on the other hand, the dimensions of the upper half above the thick dashed line in the figure may be similar to those of the above-described heatinsulation panel member 20, the thickness of the lower half below the thick dashed line may be similar to the above-described thickness (c), and the indentation (a) may be similar to the above-described indentation (a). - The overlap widths α′,α of the upper and lower, vacuum heat-
insulation materials 2 may each be 5 mm or greater, preferably from 30 to 80 mm. An overlap width smaller than 5 mm leads not only to difficulty in holding panels in abutment with each other but also to inferior thermal performance. An overlap width greater than 80 mm, on the other hand, results in a reduction in the strength of the edge portion of each panel. The inter-layer spacing (e) between the vacuum heat-insulation materials may preferably be 6 mm or greater for excellent heat insulating properties, with from 20 to 50 mm being more preferred. - Such heat insulation panels according to the present invention as described above are useful as heat insulation materials for various walls, ceilings, floors and roofs in a wide range of buildings and also as heat insulation materials for various cool boxes, insulated trucks or vans, refrigerators, vehicles and the like, and have excellent heat insulating properties and installation convenience.
- Based on examples and comparative examples, the present invention will next be described specifically.
- Heat insulation panels, each of which had the construction of the embodiment shown in
FIG. 1 and included two vacuum heat-insulation materials encapsulated in board-shaped resin foams, respectively, were formed as Examples 1-6 with the overlap width α of each vacuum heat-insulation material varied to 2.5 mm, 5 mm, 10 mm, 30 mm, 50 mm and 90 mm, respectively. Detailed conditions and measurement results of thermal performance (heat transmission coefficient) are presented in Table 1-1. - Heat insulation panels, each of which had the construction of the embodiment shown in
FIG. 3 and included one vacuum heat-insulation material encapsulated in a board-shaped resin foam, were formed as Examples 7-12 with the overlap width α of the vacuum heat-insulation material varied to 2.5 mm, 5 mm, 10 mm, 30 mm, 50 mm and 90 mm, respectively. Detailed conditions and measurement results of thermal performance (heat transmission coefficient) are presented in Table 1-2. - As examples of abutment of heat insulation panels, which are similar to that shown in
FIG. 5 , without overlapping of vacuum heat-insulation materials, a board-shaped foam with two vacuum heat-insulation materials encapsulated therein was provided as Comparative Example 1, and a board-shaped foam with one vacuum heat-insulation material encapsulated therein was provided as Comparative Example 2. Detailed conditions and measurement results of thermal performance (heat transmission coefficient) are presented in Table 1-3. - In each of the above-described examples and comparative examples, two of the heat insulation panels were brought into abutment with each other, the temperature was controlled at a high temperature (20° C.) on one side and at a low temperature (0° C.) on the other side. The heat flow rate was evaluated by heat flowmeters on the low-temperature surfaces of an abutting portion (50×50 mm) and a central portion (50×50 mm) of one of the heat insulation panels to determine the heat transmission coefficients. The evaluation results are presented in Tables 1-1 to 1-3.
-
TABLE 1-1 Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 6 Panel width W (mm) 450 450 450 450 450 450 Panel thickness H (mm) 32 32 32 32 32 32 Thickness of urethane surface layer (skin 5 5 5 5 5 5 layer) (mm) Urethane thickness d at opposite edge 5 5 5 5 5 5 portions (mm) Number of vacuum heat- insulation materials 2 2 2 2 2 2 Thickness of vacuum heat-insulation 7 7 7 7 7 7 materials (mm) Inter-layer spacing e of vacuum 8 8 8 8 8 8 heat-insulation materials (mm) Overlap width a of panels (mm) 12.5 15 20 40 60 100 Overlap width α of vacuum heat-insulation 2.5 5 10 30 50 90 materials (mm) Heat transmission coefficient at panel edge 0.72 0.48 0.48 0.31 0.26 0.25 portion (W/m2K) Heat transmission coefficient at panel 0.13 0.13 0.13 0.13 0.13 0.13 central portion (W/m2K) -
TABLE 1-2 Ex. 7 Ex. 8 Ex. 9 Ex. 10 Ex. 11 Ex. 12 Panel width W (mm) 450 450 450 450 450 450 Panel thickness H (mm) 32 32 32 32 32 32 Thickness of urethane surface layer (skin 5 5 5 5 5 5 layer) (mm) Urethane thickness d at opposite edge 5 5 5 5 5 5 portions (mm) Number of vacuum heat- insulation materials 1 1 1 1 1 1 Thickness of vacuum heat-insulation 7 7 7 7 7 7 materials (mm) Inter-layer spacing e of vacuum 8* 8* 8* 8* 8* 8* heat-insulation materials (mm) Overlap width a of panels (mm) 12.5 15 20 40 60 100 Overlap width α of vacuum heat-insulation 2.5 5 10 30 50 90 materials (mm) Heat transmission coefficient at panel edge 0.72 0.48 0.48 0.31 0.26 0.25 portion (W/m2K) Heat transmission coefficient at panel 0.21 0.21 0.21 0.21 0.21 0.21 central portion (W/m2K) *Inter-layer spacing of vacuum heat-insulation materials encapsulated in two heat insulation panels, respectively. -
TABLE 1-3 Comp. Comp. Ex. 1 Ex. 2 Panel width W (mm) 450 450 Panel thickness H (mm) 32 32 Thickness of urethane surface layer (skin 5 5 layer) (mm) Urethane thickness d at opposite edge 5 5 portions (mm) Number of vacuum heat- insulation materials 2 1 Thickness of vacuum heat-insulation 7 7 materials (mm) Inter-layer spacing e of vacuum 8 0 heat-insulation materials (mm) Overlap width a of panels (mm) 0 0 Overlap width α of vacuum heat-insulation 0 0 materials (mm) Heat transmission coefficient at panel edge 4.17 4.17 portion (W/m2K) Heat transmission coefficient at panel 0.13 0.21 central portion (W/m2K) - According to the present invention as described above, it is possible to provide a heat insulation panel, which is economical and is excellent in heat insulating properties, handling, installation and the like, and also a heat insulation structure making use of a plurality of such heat insulation panels.
-
FIG. 1 is a perspective view illustrating a heat insulation panel according to the present invention. -
FIG. 2 is a view illustrating a modification ofFIG. 1 . -
FIG. 3 is a perspective view illustrating another heat insulation panel according to the present invention. -
FIG. 4 is a view illustrating a modification ofFIG. 3 . -
FIG. 5 is a view illustrating a conventional heat insulation panel. -
FIG. 6 is a view illustrating conventional heat insulation panels. -
- A(1,1′) Resin foam
- 2,2′ Vacuum heat-insulation material
- 10 Heat insulation panel
- 20 Heat insulation panel member
Claims (5)
1. A heat insulation panel with a plate-shaped vacuum heat-insulation material embedded in a board-shaped resin foam, wherein, when the heat insulation panel is brought into abutment with another heat insulation panel of same dimensions and structure at proximal edges thereof, the vacuum heat-insulation materials in the respective heat insulation panels are in a relationship that the vacuum heat-insulation materials overlap with each other at proximal end portions thereof as viewed in a thickness direction of the heat insulation panels.
2. The heat insulation panel according to claim 1 , wherein an overlap width of the vacuum heat-insulation materials themselves, which are in the mutually-overlapping relationship, is from 5 to 80 mm as viewed in a width direction of the heat insulation panels.
3. The heat insulation panel according to claim 1 , wherein the board-shaped resin foam is composed of two rectangular resin foams of same dimensions overlapping one over the other and changed in position relative to each other in a length direction and/or width direction thereof, and the two rectangular resin foams are provided with plate-shaped vacuum heat-insulation materials encapsulated therein, respectively.
4. The heat insulation panel according to claim 1 , wherein the board-shaped resin foam is composed of two rectangular resin foams of different lengths and/or widths overlapping one over the other with centerlines thereof coincided with each other, and larger one of the two rectangular resin foams is provided with the plate-shaped vacuum heat-insulation material encapsulated therein.
5. A heat insulation structure comprising a plurality of heat insulation panels as defined in claim 1 , wherein the heat insulation panels are arranged in abutment with each other at proximal edges thereof such that plate-shaped vacuum heat-insulation materials thereof overlap with each other at proximal end portions thereof as viewed in a thickness direction of the heat insulation panels.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007306419 | 2007-11-27 | ||
JP2007-306419 | 2007-11-27 | ||
PCT/JP2008/071498 WO2009069681A1 (en) | 2007-11-27 | 2008-11-27 | Heat insulating panel and heat insulating structure |
Publications (1)
Publication Number | Publication Date |
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US20100281806A1 true US20100281806A1 (en) | 2010-11-11 |
Family
ID=40678573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/743,235 Abandoned US20100281806A1 (en) | 2007-11-27 | 2008-11-27 | Heat insulating panel and heat insulating structure |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100281806A1 (en) |
JP (1) | JPWO2009069681A1 (en) |
KR (1) | KR20100090707A (en) |
CN (1) | CN101874137A (en) |
WO (1) | WO2009069681A1 (en) |
Cited By (3)
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GR1009458B (en) * | 2017-10-12 | 2019-02-08 | Ανωνυμη Εταιρεια Παραγωγης, Εμποριας Και Αντιπροσωπειας Τυπογραφικων Μελανων Και Χρωματων Ντρουκφαμπεν Ελλας | Integrated heating sestem for the protection and insulation of terraces |
GB2565815A (en) * | 2017-08-23 | 2019-02-27 | Expanding Solutions Ltd | Insulating panels for building constructions, and building constructions |
US10418875B2 (en) | 2014-08-01 | 2019-09-17 | Panasonic Intellectual Property Management Co., Ltd. | Thermal insulation structure for electronic device, motor provided with said thermal insulation structure, and method for forming thermal insulation member for electronic device |
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JP5452969B2 (en) * | 2009-04-13 | 2014-03-26 | 川崎重工業株式会社 | Thermal insulation structure of low temperature tank and thermal insulation construction method |
US8313818B2 (en) * | 2009-07-29 | 2012-11-20 | Dow Global Technologies Llc | Thermal insulating panel composite |
DE202010005403U1 (en) * | 2010-05-07 | 2010-08-26 | Friedrich, Jessica | Training and arrangement of insulating panels for facades, ceilings, walls or roofs |
KR101279000B1 (en) * | 2010-07-14 | 2013-07-02 | 이준석 | Using a vacuum insulation panel manufacturing method and a tent tent |
JP2012051609A (en) * | 2010-08-31 | 2012-03-15 | Furuno Electric Co Ltd | Insulation storage, voyage data recording unit, and voyage data recording device |
KR101404239B1 (en) * | 2010-11-12 | 2014-06-05 | (주)엘지하우시스 | Multi-layered thin vacuum insulation panel |
KR101324556B1 (en) * | 2011-07-08 | 2013-11-01 | 한국건설기술연구원 | Hybrid Panel |
KR101277060B1 (en) * | 2011-07-27 | 2013-06-20 | 한국건설기술연구원 | Han-ok And Manufacturing Method Of Han-ok |
FR3030353B1 (en) * | 2014-12-23 | 2021-02-12 | Saint Gobain Isover | VACUUM INSULATION PANEL WITH IMPROVED GASKET |
KR101514374B1 (en) * | 2015-02-13 | 2015-04-22 | 박태연 | Insulated wall construction method of Hanok |
CN107150468B (en) * | 2016-03-04 | 2019-11-26 | 江苏山由帝奥节能新材股份有限公司 | Incubator, metope or the floor plate of heat insulating thermal preserving board and the application insulation board |
KR101889433B1 (en) * | 2017-06-02 | 2018-08-17 | 주식회사 정양에스지 | Vacuum Insulation Block |
WO2021240763A1 (en) * | 2020-05-29 | 2021-12-02 | パナソニックIpマネジメント株式会社 | Thermal insulation panel |
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- 2008-11-27 KR KR1020107013814A patent/KR20100090707A/en not_active Application Discontinuation
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Also Published As
Publication number | Publication date |
---|---|
KR20100090707A (en) | 2010-08-16 |
CN101874137A (en) | 2010-10-27 |
WO2009069681A1 (en) | 2009-06-04 |
JPWO2009069681A1 (en) | 2011-04-14 |
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