Evacuated sheet material for thermal insulation
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-003/02
E04B-001/80
F16L-059/065
B32B-003/12
B32B-003/26
B32B-005/02
B32B-005/16
B32B-005/18
B32B-005/24
B32B-005/30
B32B-007/12
B32B-015/085
B32B-015/20
B32B-027/12
B32B-029/02
B32B-003/04
출원번호
US-0695098
(2011-05-02)
등록번호
US-9321237
(2016-04-26)
우선권정보
DE-10 2010 019 074 (2010-04-30)
국제출원번호
PCT/EP2011/002169
(2011-05-02)
§371/§102 date
20130220
(20130220)
국제공개번호
WO2011/134677
(2011-11-03)
발명자
/ 주소
Hiemeyer, Jochen
Caps, Roland
Roth, Stefan
출원인 / 주소
va-Q-tec AG
대리인 / 주소
Pandiscio & Pandiscio
인용정보
피인용 횟수 :
0인용 특허 :
1
초록▼
A sheet material for thermal insulation, comprising a flat core of an open-pored material having two parallel extending surfaces, and a circumferential region inter-connecting the surfaces; a first barrier film in contact with a first surface of the core and comprising a sealing layer, and a fully c
A sheet material for thermal insulation, comprising a flat core of an open-pored material having two parallel extending surfaces, and a circumferential region inter-connecting the surfaces; a first barrier film in contact with a first surface of the core and comprising a sealing layer, and a fully circumferential protrusion of the first barrier film; a flat filter material in contact with a second surface of the open-pored core and disposed oppositely first barrier film and providing a fully circumferential protrusion a second barrier film in contact with the outer face of the flat filter material and comprising at least one sealing layer facing the flat filter material, and a fully circumferential protrusion of said second barrier film; a sealing seam extending circumferentially along the protrusion of the two films and fixing the two films to each other; wherein the filter material is welded circumferentially into the sealing seam, and wherein the volume between the two barrier films and the sealing seam is sealed and evacuated; and method for producing the insulation sheet.
대표청구항▼
1. An evacuated sheet material for thermal insulation, the sheet material comprising a) at least one flat core of an open-pored material having a first main surface and a second main surface which extend approximately parallel to each other, and a fully circumferential perimeter region connecting th
1. An evacuated sheet material for thermal insulation, the sheet material comprising a) at least one flat core of an open-pored material having a first main surface and a second main surface which extend approximately parallel to each other, and a fully circumferential perimeter region connecting the first and second main surfaces to each other,b) a first barrier film in flat, areal contact with the first main surface of said core and comprising at least one sealing layer facing said core, as well as a fully circumferential protrusion of said first barrier film with respect to said first main surface of said core,c) a flat filter material that is in flat, areal contact with the second main surface of said core facing away from said first barrier film and presents a fully circumferential protrusion with respect to a second main surface of said core,d) a second barrier film in flat, areal contact with an outer face of said flat filter material and comprising a sealing layer facing said flat filter material, as well as a fully circumferential protrusion of said second barrier film with respect to the second main surface of said core,e) a sealing seam that extends fully circumferentially along the protrusions of said first and second barrier films and fixes said first and second barrier films to each other,f) wherein said filter material is welded fully circumferentially into said sealing seam between said first and second barrier films in such way, that the region of said sealing seam has a three-layer structure having three directly adjacent layers, namely i) the first barrier film as a first envelope film, ii) the flat filter material, and iii) the second barrier film as a second envelope film, wherein the filter material, as a middle component of this three-layer structure, passes all the way through the sealing seam, from an evacuated interior of the evacuated sheet material to the surrounding external space, which is under atmospheric pressure, and, in the region of the sealing seam, completely separates the first and second barrier films from each other, in such way that, precisely in the sealing seam, the first and second barrier films are not in any direct contact with each other, but are always separated from each other,g) and wherein a volume between said first and second films and said fully circumferential sealing seam, consisting of said core and an inner portion of said filter material, is sealed vacuum-tightly and evacuated. 2. The evacuated sheet material as in claim 1, wherein one of said barrier films is provided with a greater area than the other of said barrier films. 3. The evacuated sheet material as in claim 1, wherein said second barrier film, which is in flat, areal contact with said filter material, is larger than said first barrier film, which is in contact with said core. 4. The evacuated sheet material as in claim 1, wherein a cross section through said core wrapped in said barrier films is generally hat-shaped. 5. The evacuated sheet material as in claim 1, wherein all portions of said fully circumferential sealing seam lie in a common plane, the common plane being generally flush with an opposite main surface of said core from said filter material. 6. The evacuated sheet material as in claim 1, wherein said first or second barrier film whose main portion is flush with a common plane of all portions of said fully circumferential sealing seam comprises a multi-layer aluminum composite film. 7. The evacuated sheet material as in claim 1, wherein said first or second barrier film whose main portion is not flush with a common plane of all portions of the fully circumferential sealing seam comprises a metallized or transparent barrier film. 8. The evacuated sheet material as in claim 1, wherein a barrier film that is in contact with said filter material is flexible and adapts to the shape of said core. 9. The evacuated sheet material as in claim 1, wherein said fully circumferential sealing seam is adapted to be produced in a single operation. 10. The evacuated sheet material as in claim 9, wherein said fully circumferential sealing seam has no discernible beginning or end. 11. The evacuated sheet material as in claim 9, wherein said fully circumferential sealing seam has no intersections. 12. The evacuated sheet material as in claim 1, wherein the filter material comprises the same material as a sealing layer of a barrier film. 13. The evacuated sheet material in accordance with claim 1, wherein one or more through hole(s) or cut-outs and/or scores are disposed in at least one of said first and second barrier films, or at least one or more through hole(s) or cut-outs and/or scores are disposed in each of said barrier films that are generally aligned with or overlie one another. 14. The evacuated sheet material in accordance with claim 13, wherein extending along one or more of the through holes, or cut-outs, and/or scores, are one or more sealing seams, each of which connects said first and second barrier films to each other. 15. The evacuated sheet material in accordance with claim 13, wherein a plurality of through holes, or cut-outs, and/or scores that are disposed in a regular grid, particularly in a checkerboard-like grid, analogously to squares of a same color on a checkerboard, are generally of the same area. 16. The evacuated sheet material in accordance with claim 1, wherein a plurality of cores completely separated from one another, by sealing seams, are disposed in a common plane between said first and second barrier films. 17. The evacuated sheet material in accordance with claim 16, wherein a plurality of said cores disposed in a checkerboard-like grid, analogously to squares of a same color on a checkerboard, and wherein the plurality of cores are provided with generally a same base area. 18. The evacuated sheet material in accordance with claim 1, wherein a) a grid-like core structure is provided with a plurality of cores, or elevated portions thereof, disposed in a checkerboard-like grid, analogously to squares of a same color on a checkerboard, and are separated from one another by a plurality of through holes, or cut-outs, and/or scores, or core depressions,b) wherein the cores, or elevated portions thereof, and through holes or cut-outs, and/or scores or core depressions, are configured such that a sheet material of this kind is adapted to engage in through holes, or cut-outs, and/or scores or depressions, of a sheet material of like design turned upside down such that its top side faces downward,c) wherein there are substantially no gaps in the arrangement, as a whole. 19. The evacuated sheet material as in claim 1, comprising a plurality of cores and a plurality of through holes, wherein a base area of one of the plurality of cores corresponds to a base area of one of the plurality of through holes. 20. The evacuated sheet material as in claim 18, wherein one or more cores are comprised of loose powder or pressed powder. 21. The evacuated sheet material as in claim 1, wherein embossed structures are disposed on one or both surfaces of said two main surfaces. 22. The evacuated sheet material as in claim 21 and further comprising one or more embossed stepped discontinuity (-ies), wherein different regions adjacent thereto at different sides of one of the stepped discontinuity (-ies) are of different thickness. 23. The evacuated sheet material as in claim 22, and further comprising one or more linear or ribbon-shaped embossings, wherein these embossings allow the evacuated sheet material to be flexed at least 5° at said embossings. 24. The evacuated sheet material as in claim 23, wherein said one or more linear or ribbon-shaped embossing(s) along the two barrier films are sealed to each other without inclusion of powder particles. 25. The evacuated sheet material as in claim 24, wherein said embossings extend across the sheet material from one edgewise welding seam portion to another and thereby seal individual regions of the sheet material off from one another tightly. 26. The evacuated sheet material as in claim 21, wherein said first and second main surfaces are not rectangular. 27. The evacuated sheet material as in claim 1, and further comprising a selected one of (1) at least one test body disposed between the barrier films in a depression of the core whose thermal conductivity depends on the gas pressure, and (2) a sensor for measuring the pressure in the evacuated sheet material from the outside. 28. The evacuated sheet material as in claim 1, wherein a bulge in said sheet material comprises only said first and second barrier films and said filter material, and a gas pressure in said core, if any, can be determined at that location on the basis of heat transfer through said filter material, measured from outside of said sheet.
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이 특허에 인용된 특허 (1)
Bridges John A. (Nashville TN) Neal Philip H. (Donelson TN) Besser John E. (Franklin TN), Vacuum insulated panel and method of making a vacuum insulated panel.
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