EP2154326B1 - Insulated glazing - Google Patents

Insulated glazing Download PDF

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Publication number
EP2154326B1
EP2154326B1 EP20090166458 EP09166458A EP2154326B1 EP 2154326 B1 EP2154326 B1 EP 2154326B1 EP 20090166458 EP20090166458 EP 20090166458 EP 09166458 A EP09166458 A EP 09166458A EP 2154326 B1 EP2154326 B1 EP 2154326B1
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EP
European Patent Office
Prior art keywords
layer
glass
sun protection
glass pane
comparatively low
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EP20090166458
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German (de)
French (fr)
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EP2154326A1 (en
Inventor
Helmut Forstner
Philippe Armand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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Publication of EP2154326A1 publication Critical patent/EP2154326A1/en
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/264—Combinations of lamellar blinds with roller shutters, screen windows, windows, or double panes; Lamellar blinds with special devices

Definitions

  • the invention relates to an insulating glass with at least two glass panes separated by a gap, of which a glass pane on the glass pane side facing the gap has a layer, in particular coating or vapor deposition, with a comparatively low emissivity in the infrared range, and with a space provided in the space of one open in a closed position movable sunshade, in particular a blind, wherein the sunscreen additionally has a, acting on the incident infrared radiation layer.
  • layers with a comparatively low emissivity in the infrared range are known, which according to Kirchoff's law corresponds to a low absorption in this spectral range.
  • Such "low-e" layers which can be applied as a coating or vapor deposition on glass panes or also form part of the glass pane, have a high degree of reflectivity for long-wave electromagnetic radiation (infrared light) but low reflectance for short-wave electromagnetic radiation (visible light) on.
  • such layers are also transparent to short-wave electromagnetic radiation.
  • Known layers may be metals, such as gold, silver or copper, or semiconductors.
  • the disadvantage is that functionally only a "low-e" layer can be provided in a gap of two adjacent glass panes or makes sense, because otherwise, for example in two layers, between these two layers or the glass panes to a case reflected infrared radiation results.
  • To increase the thermal insulation of the insulating glass must therefore be avoided to provide a further glass sheet to form an additional space for a further "low-e” layer, which leads disadvantageously on the one hand to increased material costs and on the other hand to increased weight.
  • an additional glass pane forcibly requires a lower passage of visible light, which can disadvantageously lead to darkening.
  • an insulating glass with a sunscreen in the space of two adjacent glass sheets is known ( DE 27 49 418 A1 ).
  • Glass panels as well as sunscreen can be provided with coatings that affect the impinging infrared Radiation act.
  • a coating of the lamellae of the sunshade designed as a shutter for increasing the reflection of infrared light is known in order to adapt the radiation reflection with respect to the sunscreen.
  • a coating of the lamellas on the outside which has a high transmittance for visible and near infrared light.
  • the DE 27 49 418 A1 by suitable choice of the blind material to reduce the heat loss.
  • the DE 27 49 418 A1 a comparatively high light transmittance can be achieved - a known from three glazing with two each associated with a space "low-e" layers known thermal insulation discloses the DE 27 49 418 A1 Not.
  • the invention is therefore based on the object, starting from the above-described prior art, to provide a structurally simple insulating glass, in spite of high thermal insulation nevertheless a high light transmission can be guaranteed.
  • the insulating glass should offer the function of a sunscreen.
  • the invention achieves the stated object in that the layer of sunscreen provided on the sunshade side facing away from the glass pane side with the layer has a comparatively low emissivity in the infrared range.
  • the layer of sunscreen provided on the sunshade side facing away from the glass pane side has a comparatively low emissivity in the infrared range, then it becomes possible to additionally provide a "low-e" layer in the interspace of two glass panes, without any disadvantages to have to take. Namely, it can be avoided inter alia, with the separation of the gap by the sunscreen unwanted trap for infrared radiation, so that the heating of the gap and thus increased heat radiation can be avoided. Furthermore, in contrast to the prior art to increase the thermal insulation no further glass pane must be provided, which not only leads to lower material costs and weight, but also in terms of light transmission is advantageous because an open sunscreen can not constitute a hindrance.
  • the thermal insulation can be further improved because so the sunscreen within a gap almost two independent Thermal insulation areas can create. It is not decisive which material is used for the sunscreen, only the "low-e" layer, which can be applied to the sunscreen or even be part of the sunscreen, in connection with the respectively delimited areas of the gap for this improvement in the heat insulation.
  • the sunshade designed as a shutter is provided with a reflective layer with a comparatively low visible light emissivity on the sun protection side facing the glass pane side.
  • the blind only has to be turned over in order to use the light-reflecting layer.
  • insulating glass shown has two glass panes 1 and 2, which have a gap 4 between them by means of a spacer 3 between them.
  • a noble gas filling for example, argon or krypton, be provided, which is not shown in detail, wherein a seal 5 is provided for sealing the gap 4.
  • the inside of the glass pane 2 of the insulating glass has on the space 4 facing glass side a layer 6 with a comparatively low emissivity in the infrared range.
  • a layer 6 is also a "low-e” coating, which provides for the increased thermal insulation of the insulating glass. It is also conceivable to provide this "low-e" coating on the glass pane 1 which is situated opposite the room side, so that the glass pane 2 can be kept free of condensation water.
  • a sun shade 7 designed as a shutter 7 is provided, which is movable between the glass sheets 1 and 2 from an open to a closed position.
  • the open position of the blind 7 is the Fig. 1 and the closed position of the blind 7 is the Fig. 2 refer to.
  • the means for moving the blind 7 are not shown in the figures for reasons of clarity.
  • the blind 7 has a layer 8 with a comparatively low emissivity in the infrared range. According to the invention, this layer 8 is provided on the side facing away from the glass pane side with the layer 6 sun protection side, so as to enable two "low-e" layers 6 and 8 in a space 4 can.
  • the invention is characterized in terms of thermal insulation by, when the shutter 7 in the closed position Fig. 2 located.
  • the blind 7 then divides the gap 4 substantially into two separate areas 9 and 10 such that each area 9 and 10 is assigned a layer 8 or 6 with a comparatively low emissivity in the infrared range.
  • This separation can essentially create two separate temperature ranges or two separate convections in the space between the two glass panes 1 and 2, which can prevent the heat flow or heat loss of the insulating glass.
  • the blind 7 can act in the manner of a third pane of glass, because the areas 9 and 10 - similar to an insulating glass with three panes of glass approximately two "intermediate areas", each with a "low-e” coating 8 and 6 lead.
  • the layer 8 may also prevent the heat radiation, which has not yet been reflected by the layer 6, to escape through the disc 1, which further improves the thermal insulation of the insulating glass.
  • the shutter 7 is provided to the glass sheet side with the layer 6 facing sun protection side with a reflection layer 11 with a comparatively low visible light emissivity, which Fig. 3 can be better taken.
  • the blind 7 shown here is in a turned position, so that with the reflection of the reflection layer 11, a particularly effective sunscreen can be created.

Description

Die Erfindung betrifft ein Isolierglas mit wenigstens zwei durch einen Zwischenraum getrennte Glasscheiben, von denen eine Glasscheibe auf der dem Zwischenraum zugewandten Glasscheibenseite eine Schicht, insbesondere Beschichtung oder Bedampfung, mit einer vergleichsweise niedrigen Emissivität im Infrarotbereich aufweist, und mit einem im Zwischenraum vorgesehenen, von einer offenen in eine geschlossene Lage bewegbaren Sonnenschutz, insbesondere eine Jalousie, wobei der Sonnenschutz zusätzlich eine, auf die auftreffende infrarote Strahlung wirkende Schicht aufweist.The invention relates to an insulating glass with at least two glass panes separated by a gap, of which a glass pane on the glass pane side facing the gap has a layer, in particular coating or vapor deposition, with a comparatively low emissivity in the infrared range, and with a space provided in the space of one open in a closed position movable sunshade, in particular a blind, wherein the sunscreen additionally has a, acting on the incident infrared radiation layer.

Um die Wärmedämmung bei Isolierglas mit zwei Glasscheiben zu verbessern, sind Schichten mit einer vergleichsweise niedrigen Emissivität im Infrarotbereich bekannt, was nach dem Kirchhoffschen Gesetz einer niedrigen Absorption in diesem Spektralbereich entspricht. Derart genannte "low-e" Schichten, die als Beschichtung oder Bedampfung auf Glasscheiben aufgebracht oder auch einen Teil der Glasscheibe bilden können, weisen für langwellige elektromagnetische Strahlungen (infrarotes Licht) einen hohen - für kurzwellige elektromagnetische Strahlungen (sichtbares Licht) jedoch einen geringen Reflexionsgrad auf. Insbesondere sind derartige Schichten auch für kurzwellige elektromagnetische Strahlungen transparent. Bekannte Schichten können Metalle, wie Gold, Silber oder Kupfer, oder auch Halbleiter darstellen. Nachteilig ist, dass funktionsbedingt lediglich eine "low-e" Schicht in einem Zwischenraum von zwei angrenzenden Glasscheiben vorgesehen werden kann bzw. sinnvoll ist, weil sich ansonsten, zum Beispiel bei zwei Schichten, zwischen diesen beiden Schichten bzw. den Glasscheiben eine Falle an zu reflektierter infraroter Strahlung ergibt. Zur Erhöhung der Wärmedämmung des Isolierglases muss daher auf ein Vorsehen einer weiteren Glasscheibe zur Bildung eines zusätzlichen Zwischenraums für eine weitere "low-e" Schicht ausgewichen werden, was nachteilig einerseits zu erhöhtem Materialaufwand und andererseits zu erhöhtem Gewicht führt. Des Weiteren bedingt eine zusätzliche Glasscheibe zwangsweise einen geringeren Durchlass an sichtbarem Licht, was nachteilig zur Abdunklung führen kann.In order to improve the thermal insulation of insulating glass with two glass panes, layers with a comparatively low emissivity in the infrared range are known, which according to Kirchoff's law corresponds to a low absorption in this spectral range. Such "low-e" layers, which can be applied as a coating or vapor deposition on glass panes or also form part of the glass pane, have a high degree of reflectivity for long-wave electromagnetic radiation (infrared light) but low reflectance for short-wave electromagnetic radiation (visible light) on. In particular, such layers are also transparent to short-wave electromagnetic radiation. Known layers may be metals, such as gold, silver or copper, or semiconductors. The disadvantage is that functionally only a "low-e" layer can be provided in a gap of two adjacent glass panes or makes sense, because otherwise, for example in two layers, between these two layers or the glass panes to a case reflected infrared radiation results. To increase the thermal insulation of the insulating glass must therefore be avoided to provide a further glass sheet to form an additional space for a further "low-e" layer, which leads disadvantageously on the one hand to increased material costs and on the other hand to increased weight. Furthermore, an additional glass pane forcibly requires a lower passage of visible light, which can disadvantageously lead to darkening.

Außerdem ist ein Isolierglas mit einem Sonnenschutz im Zwischenraum von zwei angrenzenden Glasscheiben bekannt ( DE 27 49 418 A1 ). Glasscheiben sowie Sonnenschutz können mit Beschichtungen versehen sein, die auf die auftreffende infrarote Strahlung wirken. So ist beispielsweise eine Beschichtung der Lammellen des als Jalousie ausgeführten Sonnenschutzes zur Erhöhung der Reflexion für infrarotes Licht bekannt, um damit hinsichtlich des Sonnenschutzes die Strahlungsreflexion anzupassen. Alternativ dazu ist eine Beschichtung der Lammellen auf der Außenseite bekannt, welche eine hohe Durchlässigkeit für sichtbares und nahes infrarotes Licht aufweist. Des Weiteren offenbart die DE 27 49 418 A1 durch geeignete Wahl des Jalousiematerials den Wärmeverlust zu reduzieren. Zwar kann mit einer zweifach Verglasung der DE 27 49 418 A1 eine vergleichsweise hohe Lichtdurchlässigkeit erreicht werden - eine aus dreifach Verglasungen mit zwei je einem Zwischenraum zugeordneten "low-e" Schichten bekannte Wärmedämmung offenbart die DE 27 49 418 A1 nicht.In addition, an insulating glass with a sunscreen in the space of two adjacent glass sheets is known ( DE 27 49 418 A1 ). Glass panels as well as sunscreen can be provided with coatings that affect the impinging infrared Radiation act. Thus, for example, a coating of the lamellae of the sunshade designed as a shutter for increasing the reflection of infrared light is known in order to adapt the radiation reflection with respect to the sunscreen. Alternatively, a coating of the lamellas on the outside is known, which has a high transmittance for visible and near infrared light. Furthermore, the DE 27 49 418 A1 by suitable choice of the blind material to reduce the heat loss. Although with a double glazing the DE 27 49 418 A1 a comparatively high light transmittance can be achieved - a known from three glazing with two each associated with a space "low-e" layers known thermal insulation discloses the DE 27 49 418 A1 Not.

Die Erfindung hat sich daher die Aufgabe gestellt, ausgehend vom eingangs geschilderten Stand der Technik ein konstruktiv einfaches Isolierglas zu schaffen, bei dem trotz hoher Wärmedämmung dennoch eine hohe Lichtdurchlässigkeit gewährleistet werden kann. Außerdem soll das Isolierglas die Funktion eines Sonnenschutzes bieten.The invention is therefore based on the object, starting from the above-described prior art, to provide a structurally simple insulating glass, in spite of high thermal insulation nevertheless a high light transmission can be guaranteed. In addition, the insulating glass should offer the function of a sunscreen.

Die Erfindung löst die gestellte Aufgabe dadurch, dass die auf der zur Glasscheibenseite mit der Schicht abgewandten Sonnenschutzseite vorgesehene Schicht des Sonnenschutzes eine vergleichsweise niedrige Emissivität im Infrarotbereich aufweist.The invention achieves the stated object in that the layer of sunscreen provided on the sunshade side facing away from the glass pane side with the layer has a comparatively low emissivity in the infrared range.

Weist die auf der zur Glasscheibenseite mit der Schicht abgewandten Sonnenschutzseite vorgesehene Schicht des Sonnenschutzes eine vergleichsweise niedrige Emissivität im Infrarotbereich auf, dann wird es erfindungsgemäß möglich, noch zusätzlich eine "low-e" Schicht im Zwischenraum von zwei Glasscheiben vorzusehen, ohne damit Nachteile in Kauf nehmen zu müssen. Es kann nämlich unter anderem mit der Trennung des Zwischenraums durch den Sonnenschutz eine unerwünschte Falle für infrarote Strahlung vermieden werden, so dass auch die Erwärmung des Zwischenraums und damit eine erhöhte Wärmeabstrahlung vermieden werden kann. Des Weiteren muss im Gegensatz zum Stand der Technik zur Erhöhung der Wärmedämmung keine weitere Glasscheibe vorgesehen werden, was nicht nur zu geringeren Materialkosten und Gewicht führt, sondern auch hinsichtlich der Lichtdurchlässigkeit von Vorteil ist, weil ein geöffneter Sonnenschutz keine Behinderung darstellen kann. Es können daher erfindungsgemäß gegenläufige Konstruktionsbedingungen, nämlich eine hohe Wärmedämmung und eine hohe Durchlässigkeit an sichtbarem Licht, ohne Nachteile kombiniert werden, was die Erfindung gegenüber dem Stand der Technik besonders auszeichnet. So kann je nach der Stellung des Sonnenschutzes einerseits in seiner geschlossenen Lage eine erhöhte Wärmedämmung und andererseits in seiner offenen Lage eine erhöhte Durchlässigkeit an Licht und Wärme ermöglicht werden. Damit ist es beispielsweise auch möglich, einen erhöhten raumseitigen Wärmeeintrag zu erlauben, um so die Energieeffizienz des Isolierglases noch weiter zu steigern. Ist im Gegensatz dazu eine erhöhte Wärmedämmung gefordert, dann kann dies mit geschlossenem Sonnenschutz geschaffen werden. Außerdem kann der Sonnenschutz materialunabhängig gewählt werden, weil im Wesentlichen die "low-e" Schicht des Sonnenschutzes für die erhöhte Wärmedämmung sorgt. Hinzu kommt, dass die erfindungsgemäße Maßnahme konstruktiv einfach und auch vergleichsweise kostengünstig gegenüber anderen Lösungen sein kann.If the layer of sunscreen provided on the sunshade side facing away from the glass pane side has a comparatively low emissivity in the infrared range, then it becomes possible to additionally provide a "low-e" layer in the interspace of two glass panes, without any disadvantages to have to take. Namely, it can be avoided inter alia, with the separation of the gap by the sunscreen unwanted trap for infrared radiation, so that the heating of the gap and thus increased heat radiation can be avoided. Furthermore, in contrast to the prior art to increase the thermal insulation no further glass pane must be provided, which not only leads to lower material costs and weight, but also in terms of light transmission is advantageous because an open sunscreen can not constitute a hindrance. It can therefore according to the invention opposite design conditions, namely a high thermal insulation and a high transparency to visible light, be combined without disadvantages, which is the invention particularly distinguished from the prior art. Thus, depending on the position of the sunshade on the one hand in its closed position increased thermal insulation and on the other hand in its open position increased permeability Light and heat are allowed. Thus, it is also possible, for example, to allow an increased room-side heat input, so as to increase the energy efficiency of the insulating glass even further. If, in contrast, increased thermal insulation is required, then this can be achieved with closed sunshades. In addition, the sunscreen can be selected independently of the material, because essentially the "low-e" layer of the sunscreen provides for increased thermal insulation. In addition, the measure according to the invention can be structurally simple and also comparatively inexpensive compared to other solutions.

Teilt der Sonnenschutz in seiner geschlossenen Lage den Zwischenraum im wesentlichen derart in zwei Bereiche, dass jedem Bereich eine Schicht mit einer vergleichsweise niedrigen Emissivität im Infrarotbereich zugeordnet ist, so kann die Wärmedämmung noch weiter verbessert werden, weil so der Sonnenschutz innerhalb eines Zwischenraums nahezu zwei unabhängige Wärmedämmbereiche schaffen kann. Dabei ist nicht entscheidend, welches Material für den Sonnenschutz verwendet wird, einzig die "low-e" Schicht, die auf den Sonnenschutz aufgebracht oder auch ein Teil des Sonnenschutzes sein kann, kann in Zusammenhang mit den jeweilig so abgegrenzten Bereichen des Zwischenraums für diese Verbesserung in der Wärmedämmung sorgen.Shares the sunscreen in its closed position, the gap substantially in such two areas that each area is assigned a layer with a comparatively low emissivity in the infrared range, the thermal insulation can be further improved because so the sunscreen within a gap almost two independent Thermal insulation areas can create. It is not decisive which material is used for the sunscreen, only the "low-e" layer, which can be applied to the sunscreen or even be part of the sunscreen, in connection with the respectively delimited areas of the gap for this improvement in the heat insulation.

Vorteilhafte Eigenschaften zur Wärmedämmung entstehen, wenn die Schicht auf der raumseitigen Glasscheibe vorgesehen ist.Advantageous properties for thermal insulation arise when the layer is provided on the room-side glass pane.

Um den als Jalousie ausgeführten Sonnenschutz hinsichtlich des Reflexionsgrads zu verbessern, ist der als Jalousie ausgeführte Sonnenschutz auf der zur Glasscheibenseite mit der Schicht zugewandten Sonnenschutzseite mit einer Reflexionsschicht mit eine vergleichsweise niedrigen Emissivität für sichtbares Licht versehen. Die Jalousie muss lediglich gewendet werden, um so die lichtreflektierende Schicht zum Einsatz zu bringen.In order to improve the sun protection with respect to the degree of reflection, the sunshade designed as a shutter is provided with a reflective layer with a comparatively low visible light emissivity on the sun protection side facing the glass pane side. The blind only has to be turned over in order to use the light-reflecting layer.

In den Figuren ist der Erfindungsgegenstand anhand eines Ausführungsbeispiels beispielsweise dargestellt. Es zeigen

Fig. 1
eine abgerissene und teilweise aufgerissene Ansicht auf ein Isolierglas mit einer Jalousie in offener Lage,
Fig. 2
ein Isolierglas nach Fig. 1 mit der Jalousie in geschlossener Lage und
Fig. 3
ein Isolierglas nach Fig. 1 mit der Jalousie in gewendeter Lage.
In the figures, the subject invention is illustrated by way of example with reference to an embodiment. Show it
Fig. 1
a torn and partially torn view of an insulating glass with a blind in an open position,
Fig. 2
an insulating glass after Fig. 1 with the blind in closed position and
Fig. 3
an insulating glass after Fig. 1 with the blind in a turned position.

Das nach Fig. 1 beispielsweise dargestellte Isolierglas weist zwei Glasscheiben 1 und 2 auf, die mit Hilfe eines Abstandshalters 3 zwischen sich einen Zwischenraum 4 aufweisen.That after Fig. 1 For example, insulating glass shown has two glass panes 1 and 2, which have a gap 4 between them by means of a spacer 3 between them.

Im Zwischenraum 4 kann beispielsweise eine Edelgasbefüllung, beispielsweise Argon oder Krypton, vorgesehen sein, was nicht näher dargestellt ist, wobei zur Abdichtung des Zwischenraums 4 eine Dichtung 5 vorgesehen ist. Die von der Raumseite innenliegende Glasscheibe 2 des Isolierglases weist auf der dem Zwischenraum 4 zugewandten Glasscheibenseite eine Schicht 6 mit einer vergleichsweise niedrigen Emissivität im Infrarotbereich auf. Eine derartige Schicht stellt auch eine "low-e" Beschichtung dar, die für die erhöhte Wärmedämmung des Isolierglases sorgt. Vorstellbar ist auch diese "low-e" Beschichtung auf der gegenüber der Raumseite außenliegenden Glasscheibe 1 vorzusehen, damit die Glasscheibe 2 frei von Kondenswasser gehalten werden kann. Des Weiteren ist im Zwischenraum 4 ein als Jalousie 7 ausgeführter Sonnenschutz vorgesehen, der zwischen den Glasscheiben 1 und 2 von einer offenen in eine geschlossene Lage bewegbar ist. Die offene Lage der Jalousie 7 ist der Fig. 1 und die geschlossene Lage der Jalousie 7 ist der Fig. 2 zu entnehmen. Die Mittel zur Bewegung der Jalousie 7 sind aus Übersichtlichkeitsgründen in den Figuren nicht dargestellt. Um die Wärmedämmung des Isolierglases zu erhöhen, weist die Jalousie 7 eine Schicht 8 mit einer vergleichsweise niedrigen Emissivität im Infrarotbereich auf. Erfindungsgemäß ist diese Schicht 8 auf der zur Glasscheibenseite mit der Schicht 6 abgewandten Sonnenschutzseite vorgesehen, um damit zwei "low-e" Schichten 6 und 8 in einem Zwischenraum 4 ermöglichen zu können.In the space 4, for example, a noble gas filling, for example, argon or krypton, be provided, which is not shown in detail, wherein a seal 5 is provided for sealing the gap 4. The inside of the glass pane 2 of the insulating glass has on the space 4 facing glass side a layer 6 with a comparatively low emissivity in the infrared range. Such a layer is also a "low-e" coating, which provides for the increased thermal insulation of the insulating glass. It is also conceivable to provide this "low-e" coating on the glass pane 1 which is situated opposite the room side, so that the glass pane 2 can be kept free of condensation water. Furthermore, in the space 4, a sun shade 7 designed as a shutter 7 is provided, which is movable between the glass sheets 1 and 2 from an open to a closed position. The open position of the blind 7 is the Fig. 1 and the closed position of the blind 7 is the Fig. 2 refer to. The means for moving the blind 7 are not shown in the figures for reasons of clarity. In order to increase the thermal insulation of the insulating glass, the blind 7 has a layer 8 with a comparatively low emissivity in the infrared range. According to the invention, this layer 8 is provided on the side facing away from the glass pane side with the layer 6 sun protection side, so as to enable two "low-e" layers 6 and 8 in a space 4 can.

Besonders zeichnet sich die Erfindung hinsichtlich der Wärmedämmung dadurch aus, wenn sich die Jalousie 7 in der geschlossenen Lage nach Fig. 2 befindet. Die Jalousie 7 teilt dann den Zwischenraum 4 im Wesentlichen derart in zwei getrennte Bereiche 9 und 10, dass jedem Bereich 9 und 10 eine Schicht 8 bzw. 6 mit einer vergleichsweise niedrigen Emissivität im Infrarotbereich zugeordnet ist. Diese Trennung kann im Wesentlichen zwei voneinander getrennte Temperaturbereiche bzw. auch zwei von einander getrennte Konvektionen im Zwischenraum der beiden Glasscheiben 1 und 2 schaffen, was den Wärmefluss bzw. Wärmeverlust des Isolierglases verhindern kann. Somit kann die Jalousie 7 in der Art einer dritten Glasscheibe wirken, weil die Bereiche 9 und 10 -ähnlich zu einem Isolierglas mit drei Glasscheiben- annähernd zwei "Zwischenbereiche" mit je einer "low-e" Beschichtung 8 bzw. 6 führen. Dadurch kann auf eine weitere Glasscheibe verzichtet werden, was erfindungsgemäß vorteilhafte konstruktive Voraussetzungen schafft. Außerdem kann die Schicht 8 zusätzlich auch die Wärmestrahlung, die noch nicht von der Schicht 6 reflektiert worden ist, abhalten, über die Scheibe 1 zu entweichen, was die Wärmedämmung des Isolierglases weiter verbessert.In particular, the invention is characterized in terms of thermal insulation by, when the shutter 7 in the closed position Fig. 2 located. The blind 7 then divides the gap 4 substantially into two separate areas 9 and 10 such that each area 9 and 10 is assigned a layer 8 or 6 with a comparatively low emissivity in the infrared range. This separation can essentially create two separate temperature ranges or two separate convections in the space between the two glass panes 1 and 2, which can prevent the heat flow or heat loss of the insulating glass. Thus, the blind 7 can act in the manner of a third pane of glass, because the areas 9 and 10 - similar to an insulating glass with three panes of glass approximately two "intermediate areas", each with a "low-e" coating 8 and 6 lead. As a result, it is possible to dispense with a further pane of glass, which according to the invention provides advantageous structural conditions. In addition, the layer 8 may also prevent the heat radiation, which has not yet been reflected by the layer 6, to escape through the disc 1, which further improves the thermal insulation of the insulating glass.

Die Jalousie 7 ist der zur Glasscheibenseite mit der Schicht 6 zugewandten Sonnenschutzseite mit einer Reflexionsschicht 11 mit eine vergleichsweise niedrigen Emissivität für sichtbares Licht versehen, was der Fig. 3 besser entnommen werden kann. Die hier dargestellte Jalousie 7 befindet sich in einer gewendeten Lage, so dass mit der Reflexion der Reflexionsschicht 11 ein besonders wirksamer Sonnenschutz geschaffen werden kann.The shutter 7 is provided to the glass sheet side with the layer 6 facing sun protection side with a reflection layer 11 with a comparatively low visible light emissivity, which Fig. 3 can be better taken. The blind 7 shown here is in a turned position, so that with the reflection of the reflection layer 11, a particularly effective sunscreen can be created.

Claims (4)

  1. Insulating glazing with at least two glass panes (1, 2) separated by an intermediate space (4), of which one glass pane (2) has, on the glass pane side facing the intermediate space (4), a layer (6), in particular a coating or a deposition, with a comparatively low emissivity in the infrared range, and with sun protection movable from an open into a closed position provided in the intermediate space (4), in particular a Venetian blind (7), wherein the sun protection has, in addition, a layer acting on the incident infrared radiation, characterized in that the layer (8) of the sun protection provided on the sun protection side facing away from the glass pane side with the layer (6) has a comparatively low emissivity in the infrared range.
  2. Insulating glazing according to claim 1, characterized in that the sun protection in its closed position divides the intermediate space (4) substantially into two regions (9 and 10) such that a layer (8 or 6) with a comparatively low emissivity in the infrared range is associated with each region (9 or 10), respectively, in order to thus improve the thermal insulation of the insulating glazing.
  3. Insulating glazing according to claim 1 or 2, characterized in that the layer (6) is provided on the room-side glass pane (2).
  4. Insulating glazing according to one of claims 1 through 3, characterized in that the sun protection implemented as a Venetian blind (7) is provided, on the sun protection side facing the glass pane side with the layer (6), with a reflective layer (11) with a comparatively low emissivity for visible light.
EP20090166458 2008-08-13 2009-07-27 Insulated glazing Active EP2154326B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT12672008A AT507154B1 (en) 2008-08-13 2008-08-13 INSULATING GLASS

Publications (2)

Publication Number Publication Date
EP2154326A1 EP2154326A1 (en) 2010-02-17
EP2154326B1 true EP2154326B1 (en) 2014-04-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090166458 Active EP2154326B1 (en) 2008-08-13 2009-07-27 Insulated glazing

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EP (1) EP2154326B1 (en)
AT (1) AT507154B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8256490B2 (en) 2005-03-16 2012-09-04 Hunter Douglas, Inc. Single track stacking panel covering for an architectural opening
BR112012031123B1 (en) 2010-06-08 2020-02-04 Hunter Douglas unitary set of architectural fenestration.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749418A1 (en) 1977-11-04 1979-05-10 Hermkes Hubert Insulated multiple glazing with variable optical effect - has venetian and/or spring roller blinds in spaces between panes
DE69818928T2 (en) * 1997-08-28 2004-08-12 Hunter Douglas Industries B.V. Combined multiple glazing and light control device
US20010039771A1 (en) * 1999-12-13 2001-11-15 Thinking Lightly, Inc. Light dispersive insulated glazing unit

Also Published As

Publication number Publication date
EP2154326A1 (en) 2010-02-17
AT507154B1 (en) 2010-10-15
AT507154A1 (en) 2010-02-15

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