DE29605338U1 - Vacuum insulation panel coated on both sides with aluminum-containing composite film - Google Patents
Vacuum insulation panel coated on both sides with aluminum-containing composite filmInfo
- Publication number
- DE29605338U1 DE29605338U1 DE29605338U DE29605338U DE29605338U1 DE 29605338 U1 DE29605338 U1 DE 29605338U1 DE 29605338 U DE29605338 U DE 29605338U DE 29605338 U DE29605338 U DE 29605338U DE 29605338 U1 DE29605338 U1 DE 29605338U1
- Authority
- DE
- Germany
- Prior art keywords
- vacuum insulation
- insulation panel
- aluminum
- composite film
- sides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 24
- 229910052782 aluminium Inorganic materials 0.000 title claims description 24
- 238000009413 insulation Methods 0.000 title claims description 23
- 239000002131 composite material Substances 0.000 title claims description 20
- 239000006260 foam Substances 0.000 claims description 14
- 239000004814 polyurethane Substances 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 description 4
- 229920001228 polyisocyanate Polymers 0.000 description 4
- 239000005056 polyisocyanate Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Building Environments (AREA)
- Laminated Bodies (AREA)
Description
Le A 31 669 / Pt/vos/S. *P. Le A 31 669 / Pt/vos/S. *P.
1 -1 -
Vakuumisolierpaneele werden üblicherweise zur thermischen Isolierung eingesetzt. Bekannte Vakuumisolierpaneele bestehen aus einer vorkomprimierten porösen Schüttung, einer porösen Preßplatte oder einem offenzelligen harten Schaumstoff als Substrat, das von einer gasdichten Folie umhüllt wird, wobei die Folie nach dem Evakuieren verschweißt oder verklebt wird.Vacuum insulation panels are usually used for thermal insulation. Known vacuum insulation panels consist of a pre-compressed porous fill, a porous pressed plate or an open-cell hard foam as a substrate, which is covered by a gas-tight film, whereby the film is welded or glued after evacuation.
Solche Vakuumisolierpaneele werden auch bereits bei der Herstellung von Kühlräumen, z.B. Kühlschränken eingesetzt, indem diese zwischen Außen- und Innengehäuse eingelegt werden und der verbleibende Zwischenraum zwischen Außen- und Innengehäuse ausgeschäumt wird.Such vacuum insulation panels are already being used in the manufacture of cold rooms, e.g. refrigerators, by inserting them between the outer and inner casing and filling the remaining space between the outer and inner casing with foam.
Als Füllmaterial dienen beispielsweise gefällte und getrocknete Kieselsäuren, Silicagele, Flugasche, offenzellige Schäume auf organischer Basis wie offenzellige Polyurethan-Hartschäume oder gebundenes Polyurethan-Hartschaummehl, wie sie z.B. in der DE 4 439 331 und DE 4 439 328 beschrieben werden.Examples of filler materials used include precipitated and dried silica, silica gels, fly ash, open-cell foams on an organic basis such as open-cell polyurethane rigid foams or bound polyurethane rigid foam powder, as described, for example, in DE 4 439 331 and DE 4 439 328.
Für die umhüllenden Folien wird in der Regel ein asymmetrischer Aufbau gewählt, wobei eine Seite aus diffusionsdichter Aluminiumverbundfolie besteht, die andere Seite ein Mehrschichtverbund aus Kunststoffolie ist.An asymmetrical structure is usually chosen for the enveloping films, with one side consisting of diffusion-tight aluminum composite film and the other side being a multi-layer composite made of plastic film.
Die aus diffusionstechnischer Sicht erwünschte Verwendung von aluminiumhaltigen Verbundfolien auf beiden Seiten unterblieb bisher, um den Wärmefluß über die Siegelnaht zu vermeiden.The use of aluminum-containing composite films on both sides, which is desirable from a diffusion point of view, has so far been omitted in order to avoid heat flow via the sealing seam.
Erfindungsgemäß werden nun Vakuumisolierpaneelen vorgeschlagen, bei denen die Umhüllung beidseitig aus einer gasdichten aluminiumhaltigen Verbundfolie besteht. Denn überraschenderweise wurde gefunden, daß der Beitrag der Wärmeleitung über den Rand bei einer beidseitigen Umhüllung mit aluminiumhaltiger Verbundfolie dann zu vernachlässigen ist, wenn Vakuumisolierpaneele in rechteckiger Plattengröße mit einer Kantenlänge von jeweils 40 cm Kantenlänge verwendet werden.According to the invention, vacuum insulation panels are now proposed in which the covering on both sides consists of a gas-tight aluminum-containing composite film. It was surprisingly found that the contribution of heat conduction over the edge in the case of a covering on both sides with aluminum-containing composite film can be neglected if vacuum insulation panels in rectangular plate size with an edge length of 40 cm each are used.
Le A 31 669 L e A 31 669
-2--2-
Gegenstand der vorliegenden Erfindung ist daher ein Vakuumisolierpaneel, bestehend aus beidseitig von einer aluminiumhaltigen Verbundfolie umhülltent Substrat in rechteckiger Größe mit mindestens jeweils 40 cm Kantenlänge.The subject of the present invention is therefore a vacuum insulation panel, consisting of a substrate covered on both sides by an aluminum-containing composite film in a rectangular size with at least 40 cm edge length.
Als Substrat ist eine gegebenenfalls vorverpreßte Schüttung aus gefällter Kieselsäure, Silicagel und/oder Polyurethanhartschaumpulver geeignet, wobei die Verpressung in Gegenwart von geeigneten Klebmitteln zur Gewährleistung einer Eigenstabilität erfolgt sein kann. Ferner geeignet sind offenporige Polyurethan-Hartschaumplatten als Substrat.A possibly pre-pressed bed of precipitated silica, silica gel and/or polyurethane rigid foam powder is suitable as a substrate, whereby the pressing can be carried out in the presence of suitable adhesives to ensure inherent stability. Open-pored polyurethane rigid foam boards are also suitable as a substrate.
Die erfmdungsgemäßen Vakummisolierpanellen werden hergestellt, indem das Substrat mit der gasdichten aluminiumhaltigen Verbandfolie beidseitig umhüllt wird und dann in an sich bekannter Weise nach dem Evakuierten die Folie verschweißt oder verklebt wird.The vacuum insulation panels according to the invention are produced by covering the substrate on both sides with the gas-tight aluminum-containing dressing film and then welding or gluing the film in a manner known per se after the evacuation.
Bevorzugt werden als Substrat Platten aus offenporigem Polyurethan oder Platten aus gebundenen Polyurethan-Hartschaummehl eingesetzt.The preferred substrate is panels made of open-pored polyurethane or panels made of bound polyurethane rigid foam powder.
Bevorzugt besitzen die erfindungsgemäßen Vakuumisolierpaneele eine Kantenlänge von 45 cm &khgr; 65 cm. Die Dicke der erfindungsgemäßen Platten liegt üblicherweise im Bereich von 0,5 bis 5 cm.The vacuum insulation panels according to the invention preferably have an edge length of 45 cm x 65 cm. The thickness of the panels according to the invention is usually in the range of 0.5 to 5 cm.
Messungen haben gezeigt, daß Mehrschichtverbundfolien, die eine Aluminiumschicht enthalten, überraschenderweise die Wärmeleitfähigkeit der damit umhüllten Vakuumisolierpaneele nicht beeinflußen. Es werden Aluminiumschichten der Dicke 7 bis 20 &mgr;&idiagr;&eegr;, bevorzugt 9 bis 15 &mgr;&idiagr;&eegr; verwendet.Measurements have shown that multilayer composite films containing an aluminum layer surprisingly do not affect the thermal conductivity of the vacuum insulation panels covered with them. Aluminum layers with a thickness of 7 to 20 μηι, preferably 9 to 15 μηι, are used.
Die Verbundfolien sind flexibel und bestehen aus mindestens drei Schichten. Beispiele für mögliche Zusammensetzungen sind:The composite films are flexible and consist of at least three layers. Examples of possible compositions are:
Polyethylen/Aluminium/Polyester
Polyethylen/Aluminium/Polyethylen/Polyester
Polypropyl en/Aluminium/Poly ester.Polyethylene/Aluminium/Polyester
Polyethylene/Aluminium/Polyethylene/Polyester
Polypropylene/Aluminium/Poly ester.
Derartige aluminiumhaltige Verbundfolien sind bereits bekannt und kommerziell erhältlich.Such aluminum-containing composite films are already known and commercially available.
Le A 31 669 ..^..^ .··, · Le A 31 669 ..^..^ .··, ·
-3--3-
Es besteht auch die Möglichkeit, die Umhüllung derart zu wählen, daß auf Vorder- und Rückseite der Paneels unterschiedlich aufgebaute Verbundfolien eingesetzt werden. So kann die Verbundfolie einer Seite beispielsweise eine 9 &mgr;&idiagr;&eegr; dicke, die andere eine 20 &mgr;&eegr;&igr; dicke Aluminiumschicht enthalten.It is also possible to choose the covering in such a way that differently constructed composite films are used on the front and back of the panels. For example, the composite film on one side can contain a 9 μηι thick aluminum layer and the other a 20 μηι thick aluminum layer.
Die erfindungsgemäßen Vakuumisolierpaneele werden zur Dämmung der Wandungen von Kühlräumen, Kühlschränken und Kühltruhen eingesetzt.The vacuum insulation panels according to the invention are used to insulate the walls of cold rooms, refrigerators and freezers.
Die Erfindung wird nachfolgend anhand der beigefügten Figuren erläutert.The invention is explained below with reference to the accompanying figures.
Fig. 1 zeigt den Querschnitt durch ein erfmdungsgemäßes Vakuumisolierpaneel, bestehend aus offenporigem Füllmaterial 1 (z.B. mit Polyisocyanat verpreßtes PoIyurethanhartschaummehl als Substrat, eine Aluminiumschicht enthaltende Verbundfolie 2 und der Siegelnaht 3.Fig. 1 shows the cross section through a vacuum insulation panel according to the invention, consisting of open-pored filling material 1 (e.g. polyurethane rigid foam powder pressed with polyisocyanate) as substrate, a composite film 2 containing an aluminum layer and the sealing seam 3.
Fig. 2 zeigt die Gesamtansicht eines erfmdungsgemäßen Vakuumisolieerpaneels.Fig. 2 shows the overall view of a vacuum insulation panel according to the invention.
Die nachfolgenden Beispiele sollen die Erfindung näher erläutern, ohne sie jedoch in ihrem Umfang zu begrenzen.The following examples are intended to explain the invention in more detail without, however, limiting its scope.
Le A 31 669 ·· ·· ·· ···· ·· .» Le A 31 669 ·· ·· ····· ·· .»
-4 -Beispiele -4 - Examples
Wärmeleitzahl eines rechteckigen Formkörpers aus mit Polyisocyanat verpreßtem Polyurethanhartschaummehl ohne Folienumhüllung:Thermal conductivity of a rectangular molded body made of polyurethane rigid foam powder pressed with polyisocyanate without film covering:
Größe: 40 &khgr; 40 &khgr; 2 cm3
Wärmeleitzahl bei 0,6 mbar: 8,3 mW/mKSize: 40 x 40 x 2 cm 3
Thermal conductivity at 0.6 mbar: 8.3 mW/mK
Vakuumisolierpaneel, bestehend aus rechteckigem Formkörper aus mit Polyisocyanat verpresstem Polyurethanhartschaummehl und allseitiger Umhüllung mit Aluminiumverbundfolie, welche eine 12 &mgr;&eegr;&igr; dicke Aluminiumschicht enthält; Innendruck: ca. 0,6 mbar.Vacuum insulation panel, consisting of a rectangular molded body made of polyurethane rigid foam powder pressed with polyisocyanate and covered on all sides with aluminum composite foil, which contains a 12 μηγ thick aluminum layer; Internal pressure: approx. 0.6 mbar.
Größe: 40 &khgr; 40 &khgr; 2 cm3
Wärmeleitzahl: 8,3 mW/mKSize: 40 x 40 x 2 cm 3
Thermal conductivity: 8.3 mW/mK
Beispiel 2 (Vergleich) Example 2 (comparison)
Vakuumisolierpaneel bestehend aus rechteckigem Formkörper aus mit Polyisocyanat verpresstem Polyurethanhartschaummehl und allseitiger Umhüllung mit Aluminiumverbundfolie, welche eine 12 &mgr;&idiagr;&eegr; dicke Aluminiumschicht enthält; Innendruck: ca. 0,6 mbar.Vacuum insulation panel consisting of a rectangular molded body made of polyurethane rigid foam powder pressed with polyisocyanate and covered on all sides with aluminum composite foil, which contains a 12 μm thick aluminum layer; Internal pressure: approx. 0.6 mbar.
Größe: 25 &khgr; 25 &khgr; 2 cm3
Wärmeleitzeit: 9,5 mW/mKSize: 25 x 25 x 2 cm 3
Thermal conductivity: 9.5 mW/mK
Die Beispiele zeigen, daß ab der erfmdungsgemäßen Größe des Vakuumpaneels die aluminiumhaltige Verbundfolie, die zur Umhüllung verwendet wird, die Wärmeleitfähigkeit des erhaltenen Vakuumisolierpaneels nicht beeinflußt.The examples show that starting from the size of the vacuum panel according to the invention, the aluminum-containing composite foil used for the enveloping does not influence the thermal conductivity of the resulting vacuum insulation panel.
Claims (5)
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29605338U DE29605338U1 (en) | 1996-03-22 | 1996-03-22 | Vacuum insulation panel coated on both sides with aluminum-containing composite film |
| HR29608385.2A HRP970104A2 (en) | 1996-03-22 | 1997-02-25 | Vacuum insulating panels wraped on both sides by a foil containing metal or by a metal covering layer |
| JP9533984A JP2000507340A (en) | 1996-03-22 | 1997-03-10 | Vacuum insulation panel covered on both sides with metal-containing composite film or metal outer layer |
| PCT/EP1997/001199 WO1997036129A1 (en) | 1996-03-22 | 1997-03-10 | Vacuum insulating panel coated on both sides with a metal-containing composite foil or a metal covering layer |
| CA002249537A CA2249537A1 (en) | 1996-03-22 | 1997-03-10 | Vacuum insulating panel coated on both sides with a metal-containing composite foil or a metal covering layer |
| AU20258/97A AU2025897A (en) | 1996-03-22 | 1997-03-10 | Vacuum insulating panel coated on both sides with a metal-containing composite foil or a metal covering layer |
| TR1998/01880T TR199801880T2 (en) | 1996-03-22 | 1997-03-10 | Vacuum insulation panel coated on both sides with a metal-containing composite foil or a metal coating layer. |
| KR1019980707476A KR20000004917A (en) | 1996-03-22 | 1997-03-10 | Vacuum insulating panel coated on both sides with a metal containing composite foil or a metal covering layer |
| DE19780241T DE19780241D2 (en) | 1996-03-22 | 1997-03-10 | Vacuum insulation panel coated on both sides with metal-containing composite film or metal cover layer |
| EP97908204A EP0888512A1 (en) | 1996-03-22 | 1997-03-10 | Vacuum insulating panel coated on both sides with a metal-containing composite foil or a metal covering layer |
| BR9708328A BR9708328A (en) | 1996-03-22 | 1997-03-10 | Vacuum insulation panel coated on both sides by a composite film containing metal or a metallic outer layer |
| ZA9702425A ZA972425B (en) | 1996-03-22 | 1997-03-20 | Vacuum insulation panel covered on both sides with metal-containing composite film or a metallic outer layer. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29605338U DE29605338U1 (en) | 1996-03-22 | 1996-03-22 | Vacuum insulation panel coated on both sides with aluminum-containing composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29605338U1 true DE29605338U1 (en) | 1997-07-17 |
Family
ID=8021515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29605338U Expired - Lifetime DE29605338U1 (en) | 1996-03-22 | 1996-03-22 | Vacuum insulation panel coated on both sides with aluminum-containing composite film |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE29605338U1 (en) |
| ZA (1) | ZA972425B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1566264A1 (en) * | 2004-02-18 | 2005-08-24 | SCHWENK Dämmtechnik GmbH & Co KG | Heat insulating panel |
-
1996
- 1996-03-22 DE DE29605338U patent/DE29605338U1/en not_active Expired - Lifetime
-
1997
- 1997-03-20 ZA ZA9702425A patent/ZA972425B/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1566264A1 (en) * | 2004-02-18 | 2005-08-24 | SCHWENK Dämmtechnik GmbH & Co KG | Heat insulating panel |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA972425B (en) | 1997-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19970828 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 19990427 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20020404 |
|
| R158 | Lapse of ip right after 8 years |
Effective date: 20041001 |