EP0646753A2 - Thermal insulated door window unit for an appliance with an inner temperature differing from the ambient one - Google Patents
Thermal insulated door window unit for an appliance with an inner temperature differing from the ambient one Download PDFInfo
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- EP0646753A2 EP0646753A2 EP94106719A EP94106719A EP0646753A2 EP 0646753 A2 EP0646753 A2 EP 0646753A2 EP 94106719 A EP94106719 A EP 94106719A EP 94106719 A EP94106719 A EP 94106719A EP 0646753 A2 EP0646753 A2 EP 0646753A2
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- Prior art keywords
- temperature
- viewing window
- pane
- window according
- insulating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/02—Doors specially adapted for stoves or ranges
- F24C15/04—Doors specially adapted for stoves or ranges with transparent panels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/34—Elements and arrangements for heat storage or insulation
Definitions
- the invention relates to a temperature-insulating viewing window or door for a device with an interior temperature that deviates from its ambient temperature, in particular for ovens or ovens or drying cupboards with an arrangement of glass, glass-ceramic or another transparent, temperature-resistant pane held by a common frame Material.
- Viewing windows of this type are generally known. They are usually arranged in the front doors of ovens or the like. The following description is for household ovens. However, the invention can also be used for any other device which has a viewing window or door which separates an interior space deviating from its ambient temperature and through which an insight into this space is possible, e.g. also for freezers and refrigerators, or drying cabinets.
- the inner window and any additional windows and the front window are attached to the door panel. Since the door panel is in direct contact with the baking chamber and is made of a good heat-conducting material (metal), the viewing panels are heated, among other things, by heat conduction.
- a transparent heat protection element for frying ovens, heating chambers and the like is known, with at least two glass panes arranged in parallel and an all-round edge connector which connects the glass panes to one another and at a predetermined distance holds, the edge connector has a spacer profile that is only placed between the edges of the pane, and each glass pane is glued to one another and to this spacer profile by means of a sealing compound that remains elastic even under the influence of heat.
- DE-GM 77 06 648 is based on the task of specifying a heat protection element in which the thermal insulation is improved and the inside fogging and soiling is prevented.
- DE 36 02 455 A1 discloses an oven for baking, roasting, grilling and the like.
- a cooking space with at least one heating element provided in particular on its top and a door closing the cooking space from two spaced-apart parallel door shells, of which in particular each has a glass pane the two door shells, for example, via profile rails arranged between them with two spaced-apart parallel legs U or Z profile strips or the like.
- the outer legs are glued to the outer door shell.
- DE 36 02 455 A1 is based on the object of designing an oven in such a way that the outer door shell does not have any areas that collect the dirt and excessive heating of the outer door shell is avoided.
- thermochromic panes on the inside, the radiation permeability of which is reduced when the temperature rises. However, this affects the view through the window.
- panes of a multi-pane arrangement with a coating which either reflects infrared radiation or reduces the emission of infrared radiation.
- a coating which has both of these properties is, for example, one made of fluorine-doped tin dioxide. If it is attached to the inside of a pane facing the temperature-increased room, it reflects some of the infrared radiation back into the interior, if it is attached to the outside of a pane, it reduces the infrared radiation to the outside towards the next outer pane.
- the panes can also be coated on both sides.
- DE 42 06 820 A1 shows an oven door for an oven with a see-through window, the at least one glass pane of which has a coating reflecting heat rays, the reflective coating being applied to the surface of the glass panes facing away from the interior of the oven.
- the object of this invention is also to bring about a lowering of the temperature on the front of the oven.
- each panel was previously attached individually by the stove manufacturer when the viewing panels were installed. This is associated with a high expenditure of material and time.
- the object of the invention is therefore to propose measures with which a further increase in the temperature difference between the interior temperature during operation of the respective device, for example in household ovens or refrigerators and freezers, and its ambient temperature is possible. These measures are also intended to reduce energy consumption.
- a further disk is arranged between the window exposed to the ambient temperature and the interior temperature of the device.
- All disks can be arranged parallel to one another or at least two disks form an acute angle between 0.5 ° and 10 ° with one another.
- the disks enclosing the angle of inclination are preferably arranged in such a way that the inclination of the disks relative to one another extends in a vertical direction. Depending on the application, the disks can converge upwards as well as diverge upwards.
- the temperature-reducing effect of the inclination is presumably due to certain radiation patterns, and possibly also through improved convection
- the panes of the viewing window can have different material compositions.
- the disc exposed to the interior temperature of the device consists, for. B. typically made of THERMAX 5000 R , a tempered, heat-reflective coated soda-lime float glass, the intermediate pane and the pane exposed to ambient temperature made of DURAX R , a tempered soda-lime float glass.
- the intermediate further disc is connected at the edge to the disc, which is exposed to the ambient temperature.
- the distance between the intermediate, further pane, from the pane which is exposed to the ambient temperature is determined by means of spacers, in particular between 5 mm and 20 mm.
- the spacers are made of materials that have a thermal insulation effect, in particular ceramic, glass, plastic or silicone.
- the spacers are compressible and designed as a silicone tube.
- This compressible, compressible silicone hose easily enables the necessary pressure equalization when the oven is heated.
- the compressible volume of the silicone tube is adapted to the different temperature differences and air volumes that occur between the panes.
- a temperature-resistant adhesive in particular a silicone adhesive, is used according to the invention.
- silicone adhesive also simplifies the recycling of the used and discarded window composite, since only the two materials glass and silicone are obtained.
- a gas-tight gluing of the spacers to the intermediate pane and the pane exposed to the ambient temperature creates a closed space and thus an insulating viewing window.
- the gas-tight space between the panes can be filled with a poorly heat-conducting gas, e.g. Argon, krypton or carbon dioxide.
- a poorly heat-conducting gas e.g. Argon, krypton or carbon dioxide.
- the gas-tightly sealed space must have options for pressure compensation in the event of temperature changes. This is possible using simple, known measures.
- panes can also be advantageous to provide at least one of the panes on one or both sides with a heat-reflecting layer, in particular with tin dioxide.
- the intermediate pane of the temperature-insulating viewing window is the same size or larger than the pane exposed to the interior temperature of the device and smaller than the pane exposed to the ambient temperature.
- At least one further pane is arranged by means of adhesive between the further pane located therebetween and the pane exposed to the interior temperature of the device.
- the viewing window is available pre-assembled as a ready-to-install unit for mounting in a device with an interior temperature that differs from the ambient temperature.
- the oven door is made up of three viewing panels (inner, middle panel and front panel). The distance between the inner pane and the outer pane is 22 mm.
- the pane size of the inner and middle pane is approximately 400 x 300 mm2.
- the inner pane is made of THERMAX 5000 R , a toughened, heat-reflecting coated soda-lime float glass. The heat-reflecting layer of this pane is arranged facing away from the baking chamber.
- the middle pane and the front pane are made of DURAX R , a toughened soda-lime float glass.
- the middle and inner disc are arranged according to Fig.1.
- the middle pane is attached to the front pane with a tubular circumferential spacer using a temperature-resistant silicone adhesive.
- the front window surface temperature of 65 ° C results when the middle viewing window is attached to the door panel.
- the assembly described in Fig. 1 results in a windscreen surface temperature of 60 ° C.
- a commercial household oven is used for this example, which is additionally equipped with the option of pyrolytic self-cleaning.
- the oven door has four windows (inner window, two middle windows and a front window).
- the inner and middle pane have the size of approx. 300 x 400 mm.
- the inner pane and the middle pane closest to the baking chamber are provided with a heat-reflecting layer on the side facing the other pane.
- the second middle pane from the baking chamber and the front pane are made of DURAX.
- the front window is a curved window.
- the disks are mounted as shown in Fig.2.
- the two middle panes are attached to the curved front pane with a tubular circumferential spacer using temperature-resistant silicone adhesive.
- the entire disc package has a thickness of approx. 50 mm.
- the windscreen surface temperature of 63 ° C results with conventional mounting of the inner and middle panes on the door panel.
- the windscreen surface temperature is 45 ° C.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Stoves And Ranges (AREA)
- Joining Of Glass To Other Materials (AREA)
- Drying Of Solid Materials (AREA)
- Electric Ovens (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft ein temperaturdämmendes Sichtfenster oder -türe für ein Gerät mit von seiner Umgebungstemperatur abweichender Innenraumtemperatur, insbesondere für Gar- oder Backöfen oder Trockenschränke mit einer von einem gemeinsamen Rahmen gehaltenen Anordnung von im Abstand positionierten Scheiben aus Glas, Glaskeramik oder einem anderen durchsichtigen, temperaturbeständigen Material.The invention relates to a temperature-insulating viewing window or door for a device with an interior temperature that deviates from its ambient temperature, in particular for ovens or ovens or drying cupboards with an arrangement of glass, glass-ceramic or another transparent, temperature-resistant pane held by a common frame Material.
Sichtfenster dieser Art sind allgemein bekannt. Sie sind in der Regel in den frontseitigen Türen von Backöfen oder dergl. angeordnet. Die folgende Beschreibung erfolgt für Haushaltsbacköfen. Die Erfindung ist aber auch für jedes andere Gerät verwendbar, das ein Sichtfenster oder -türe aufweist, welches einen von seiner Umgebungstemperatur abweichenden Innenraum trennt und durch das ein Einblick in diesen Raum möglich ist, also z.B. auch für Gefrier- und Kühlgeräte, oder Trockenschränke.Viewing windows of this type are generally known. They are usually arranged in the front doors of ovens or the like. The following description is for household ovens. However, the invention can also be used for any other device which has a viewing window or door which separates an interior space deviating from its ambient temperature and through which an insight into this space is possible, e.g. also for freezers and refrigerators, or drying cabinets.
Bei Ofensichtscheiben sind die innere Sichtscheibe und eventuell zusätzliche Sichtscheiben sowie die Frontscheibe am Türblech befestigt.
Da das Türblech in direktem Kontakt zu dem Backraum steht und aus einem gut wärmeleitenden Material (Metall) gefertigt ist, werden die Sichtscheiben u.a. über Wärmeleitung erwärmt.In the case of oven windows, the inner window and any additional windows and the front window are attached to the door panel.
Since the door panel is in direct contact with the baking chamber and is made of a good heat-conducting material (metal), the viewing panels are heated, among other things, by heat conduction.
Im Falle von Sichtfenstern ist es aber im Gegensatz zu den übrigen einen z.B. temperaturerhöhten Innenraum umgebenen Wänden nicht möglich, eine effektive Wärmedämmung, beispielsweise auf der Basis von Mineralwolle und dergl. anzubringen. Deswegen sind es gerade solche Sichtfenster, bei denen das Problem besteht, daß sie sich an ihrer Außensseite zu stark aufheizen.In the case of viewing windows, in contrast to the other one, it is e.g. temperature-increased interior surrounding walls not possible to apply effective thermal insulation, for example based on mineral wool and the like. That is why it is precisely such viewing windows that have the problem that they heat up too much on their outside.
Um die Außentemperatur eines Sichtfensters zu vermindern, werden allgemein schon Mehrscheibenanordnungen verwendet, deren Außenscheibe mit ihrer Innenseite nicht mehr direkt an den temperaturerhöhten Raum grenzt, so daß bereits eine Aufheizung der Außenscheibe durch direkten Wärmeübergang vermieden wird. Dennoch erfolgt auch bei mehreren beabstandeten Scheiben mit Luftzwischenraum eine Aufheizung der Außenscheibe durch Strahlung aus dem temperaturerhöhten Innenraum, wobei diese Strahlung zum Teil die inneren Scheiben passiert und direkt von der Außenscheibe, teilweise aber auch von den inneren Scheiben absorbiert wird, die dann ihrerseits wieder eine Wärmestrahlung zur nächst äußeren Scheibe aussenden oder die nächst äußeren Scheibe über den luftgefüllten Zwischenraum durch Wärmeleitung und Konvektion aufheizen.
Es sind auch schon Ausführungen von Sichtfenstern bekannt, bei denen eine Außenscheibe derart im Abstand vor den übrigen Scheiben gehalten ist, daß der Rahmen der Anordnung zwischen der Außenscheibe und der nächst inneren Scheibe zumindest oben und unten offen ist, so daß zwischen dieser vorgesetzten Außenscheibe und der nächst inneren Scheibe eine Luftkonvektion im Umgebungsraum außerhalb des Gerätes stattfinden kann, wobei zum einen ständig die sich erwärmende Luft zwischen den beiden äußeren Scheiben durch Umwälzung der Umgebungsluft ausgetauscht und zum anderen durch diesen Luftstrom auch die vorgesetzte Außenscheibe ständig gekühlt wird.In order to reduce the outside temperature of a viewing window, multi-pane arrangements are generally already used, the inside pane of which no longer directly borders the temperature-increased space with its inside, so that heating of the outside pane is avoided by direct heat transfer. Nevertheless, even with several spaced-apart panes with an air gap, the outer pane is heated by radiation from the temperature-increased interior, this radiation partly passing through the inner panes and being absorbed directly by the outer pane, but also partially by the inner panes, which in turn are then again Send out heat radiation to the next outer pane or heat the next outer pane via the air-filled space by means of heat conduction and convection.
There are also designs of viewing windows in which an outer pane is held at a distance from the other panes such that the frame of the arrangement between the outer pane and the next inner pane is at least open at the top and bottom, so that between this outer pane and air convection can take place in the surrounding space outside the device in the next inner pane, whereby on the one hand the warming air between the two outer panes is constantly exchanged by recirculation of the ambient air and on the other hand the front outer pane is constantly cooled by this air flow.
Aus dem DE-GM 77 06 648 ist ein durchsichtiges Wärmeschutzelement für Bratöfen, Wärmekammern und dergleichen bekannt, mit mindestens zwei parallel angeordneten Glasscheiben und einem ringsum laufenden Randverbinder, der die Glasscheiben miteinander verbindet und in einem vorgegebenen Abstand hält, wobei der Randverbinder ein Abstandsprofil aufweist, das lediglich zwischen die Scheibenränder gelegt ist, und jede Glasscheibe mittels einer auch unter Hitzeeinfluß elastisch bleibenden Dichtmasse miteinander und mit diesem Abstandsprofil verklebt ist.From DE-GM 77 06 648 a transparent heat protection element for frying ovens, heating chambers and the like is known, with at least two glass panes arranged in parallel and an all-round edge connector which connects the glass panes to one another and at a predetermined distance holds, the edge connector has a spacer profile that is only placed between the edges of the pane, and each glass pane is glued to one another and to this spacer profile by means of a sealing compound that remains elastic even under the influence of heat.
Dem DE-GM 77 06 648 liegt dabei die Aufgabe zugrunde, ein Wärmeschutzelement anzugeben, bei dem die Wärmedämmung verbessert und das innenseitige Beschlagen und Verschmutzen verhindert wird.DE-GM 77 06 648 is based on the task of specifying a heat protection element in which the thermal insulation is improved and the inside fogging and soiling is prevented.
Die DE 36 02 455 A1 legt einen Backofen zum Backen, Braten, Grillen und dergl. offen, mit einem Garraum mit zumindest einem insbesondere an dessen Oberseite vorgesehenen Heizorgan und einer den Garraum abschließenden Tür aus zwei mit Abstand voneinander angeordneten parallelen Türschalen, von denen insbesondere jede eine Glasscheibe aufweist wobei die beiden Türschalen über zwischen ihnen angeordnete Profilschienen mit zwei mit Abstand zueinander verlaufenden parallelen Schenkeln z.B. U- oder Z-Profilleisten oder dergl. verbunden sind, deren äußere Schenkel mit der äußeren Türschale verklebt sind.DE 36 02 455 A1 discloses an oven for baking, roasting, grilling and the like. With a cooking space with at least one heating element provided in particular on its top and a door closing the cooking space from two spaced-apart parallel door shells, of which in particular each has a glass pane, the two door shells, for example, via profile rails arranged between them with two spaced-apart parallel legs U or Z profile strips or the like. Are connected, the outer legs are glued to the outer door shell.
Der DE 36 02 455 A1 liegt die Aufgabe zugrunde einem Backofen so auszubilden, daß die äußere Türschale keine den Schmutz ansammelnden Bereiche aufweist und eine übermäßige Aufheizung der äußeren Türschale vermieden wird.DE 36 02 455 A1 is based on the object of designing an oven in such a way that the outer door shell does not have any areas that collect the dirt and excessive heating of the outer door shell is avoided.
Es besteht auch die Möglichkeit, innen thermochrome Scheiben zu verwenden, deren Strahlungsdurchlässigkeit bei Temperaturerhöhung reduziert wird. Dies beeinträchtigt jedoch die Sicht durch das Fenster.It is also possible to use thermochromic panes on the inside, the radiation permeability of which is reduced when the temperature rises. However, this affects the view through the window.
Es ist ferner bekannt, eine oder mehrere der Scheiben einer Mehrscheibenanordnung mit einer Beschichtung zu versehen, die entweder Infrarotstrahlung reflektiert oder die Emission von Infrarotstrahlung vermindert. Eine diese beide Eigenschaften aufweisende Beschichtung ist beispielsweise eine solche aus fluordotiertem Zinndioxid. Wird sie an der dem temperaturerhöhten Raum zugewandten Innenseite einer Scheibe angebracht, reflektiert sie einen Teil der Infrarotstrahlung in den Innenraum zurück, wird sie an der Außenseite einer Scheibe angebracht, vermindert sie die Infrarotstrahlung nach außen zur nächst äußeren Scheibe hin. Die Scheiben können auch zweiseitig beschichtet sein.It is also known to provide one or more of the panes of a multi-pane arrangement with a coating which either reflects infrared radiation or reduces the emission of infrared radiation. A coating which has both of these properties is, for example, one made of fluorine-doped tin dioxide. If it is attached to the inside of a pane facing the temperature-increased room, it reflects some of the infrared radiation back into the interior, if it is attached to the outside of a pane, it reduces the infrared radiation to the outside towards the next outer pane. The panes can also be coated on both sides.
So ist aus der DE 42 06 820 A1 eine Backofentüre für einen Backofen mit Durchsichtsfenster zu entnehmen, dessen wenigstens eine Glasscheibe einen Wärmestrahlen reflektierenden Belag aufweist, wobei der reflektierende Belag an der dem Backofeninnenraum abgewandten Oberfläche der Glasscheiben aufgebracht ist.DE 42 06 820 A1 shows an oven door for an oven with a see-through window, the at least one glass pane of which has a coating reflecting heat rays, the reflective coating being applied to the surface of the glass panes facing away from the interior of the oven.
Aufgabe auch dieser Erfindung ist es unter anderem, eine Absenkung der Temperatur an der Backofenfrontseite zu bewirken.The object of this invention is also to bring about a lowering of the temperature on the front of the oven.
Trotz der vorstehend erläuterten Vorkehrungen ist es nicht selten, daß bei Haushaltsbacköfen, die insbesondere bei Selbstreinigung durch Pyrolyse durchaus mit Temperaturen von 480°C bis 500°C und darüber betrieben werden, die Außenscheiben eines Sichtfensters auf eine Temperatur bis 150°C und höher ansteigen kann. Es besteht die Bestrebung, zwecks Berührungssicherheit der Sichtfenster durch die Bedienungspersonen die zulässige Außentemperatur von solchen Sichtfenstern in den einschlägigen Normen auf 78°C zu begrenzen (z. B. UL 858, underwriter laboratory household domestic appliances).Despite the precautions explained above, it is not uncommon for household ovens, which are operated at temperatures of 480 ° C to 500 ° C and above, in particular with self-cleaning by pyrolysis, to increase the outer panes of a viewing window to a temperature of up to 150 ° C and higher can. There is an endeavor to limit the permissible outside temperature of such viewing windows in the relevant standards to 78 ° C (e.g. UL 858, underwriter laboratory household domestic appliances) in order to ensure that the viewing windows are safe to touch.
Außerdem wird bisher bei der Montage der Sichtscheiben durch den Herd-Hersteller jede Scheibe einzeln befestigt. Dies ist mit hohem Material- und Zeitaufwand verbunden.In addition, each panel was previously attached individually by the stove manufacturer when the viewing panels were installed. This is associated with a high expenditure of material and time.
Aufgabe der Erfindung ist es daher, Maßnahmen vorzuschlagen, mit denen eine weitere Steigerung der Temperaturdifferenz zwischen der Innenraumtemperatur beim Betrieb des jeweiligen Gerätes, beispielweise bei Haushaltsbacköfen oder Kühl- und Gefriergeräten und seiner Umgebungstemperatur möglich ist. Ferner soll der Energieverbrauch durch diese Maßnahmen verringert werden.The object of the invention is therefore to propose measures with which a further increase in the temperature difference between the interior temperature during operation of the respective device, for example in household ovens or refrigerators and freezers, and its ambient temperature is possible. These measures are also intended to reduce energy consumption.
Das heißt, insbesondere werden bei Backöfen die Außentemperaturen der Sichtfenster auf Werte reduziert, die keinerlei Gefährdung für die Personen, die das Gerät bedienen, aber z. B. auch für Kinder und Haustiere bedeuten, wobei der Energieverbrauch ca. 5 bis 20 % unter dem üblicher Geräte liegen soll.This means, in particular, that the outside temperatures of the viewing windows in ovens are reduced to values that pose no risk to the people operating the device, but e.g. B. also mean for children and pets, the energy consumption should be about 5 to 20% below the usual devices.
Des weiteren ist es Aufgabe der vorliegenden Erfindung, einbaufertige Sichtfenster-Einheiten vorzuhalten, die den Montageaufwand beim BackofenHersteller erheblich verringern.Furthermore, it is an object of the present invention to provide ready-to-install viewing window units which considerably reduce the assembly effort for the oven manufacturer.
Diese Aufgaben werden gemäß der Erfindung dadurch gelöst, daß zwischen der der Umgebungstemperatur und der, der Innenraumtemperatur des Gerätes ausgesetzten Scheibe eine weitere Scheibe angeordnet ist.These objects are achieved according to the invention in that a further disk is arranged between the window exposed to the ambient temperature and the interior temperature of the device.
Dabei können alle Scheiben parallel zueinander angeordnet sein oder mindestens zwei Scheiben einen spitzen Winkel zwischen 0.5° und 10° miteinander bilden.All disks can be arranged parallel to one another or at least two disks form an acute angle between 0.5 ° and 10 ° with one another.
Bevorzugt sind die den Neigungswinkel miteinander einschließenden Scheiben derart angeordnet, daß die Neigung der Scheiben gegeneinander in senkrechter Richtung verläuft. Die Scheiben können je nach Anwendungsfall nach oben konvergieren wie auch nach oben divergieren.The disks enclosing the angle of inclination are preferably arranged in such a way that the inclination of the disks relative to one another extends in a vertical direction. Depending on the application, the disks can converge upwards as well as diverge upwards.
Die temperaturreduzierende Wirkung der Schrägstellung erfolgt je nach Ausführungsform des Sichtfensters vermutlich durch bestimmten Strahlungsverlauf, wie möglicherweise auch durch verbesserte KonvektionDepending on the design of the viewing window, the temperature-reducing effect of the inclination is presumably due to certain radiation patterns, and possibly also through improved convection
Im Gegensatz zu parallelen Scheiben, zwischen denen eine Hin- und Herstrahlung von Wärme im allgemeinen senkrecht zur Scheibenoberfläche verläuft, scheint sich zwischen zwei schräggestellten Scheiben eine Hin- und Herstrahlung einzustellen, die dem Reflexionsgesetz folgend zum divergenten Bereich zwischen den Scheiben fortschreitet, bis sie vom Rahmen der Scheibenanordnung an der divergenten Seite der Scheiben aufgenommen wird. Die Wärmeableitung im Sichtfensterrahmen ist beherrschbar. Bei der Erfindung kommt es einzig und allein darauf an, daß die äußere Scheibe einer Mehrscheibenanordnung an ihrer äußeren Oberflächentemperatur reduziert wird.In contrast to parallel panes, between which a back-and-forth radiation of heat is generally perpendicular to the surface of the panel, back-and-forth radiation appears to occur between two inclined panes, which, following the law of reflection, progresses to the divergent area between the panes until it moves away Framework of the Disc arrangement is added to the divergent side of the discs. The heat dissipation in the window frame is manageable. The only thing that matters in the invention is that the outer pane of a multi-pane arrangement is reduced at its outer surface temperature.
Die Scheiben des Sichtfensters können dabei unterschiedliche Materialzusammensetzungen aufweisen.The panes of the viewing window can have different material compositions.
Die der Innenraumtemperatur des Gerätes ausgesetzte Scheibe besteht z. B. typischerweise aus THERMAX 5000R, einem vorgespannten, wärmereflektierend beschichteten Kalk-Natron-Float-Glas, die zwischenliegende weitere Scheibe und die der Umgebungstemperatur ausgesetzte Scheibe aus DURAXR, einem vorgespannten Kalk-Natron-Float-Glas.The disc exposed to the interior temperature of the device consists, for. B. typically made of THERMAX 5000 R , a tempered, heat-reflective coated soda-lime float glass, the intermediate pane and the pane exposed to ambient temperature made of DURAX R , a tempered soda-lime float glass.
Nach der Erfindung ist die zwischenliegende weitere Scheibe randlich mit der Scheibe verbunden, die der Umgebungstemperatur ausgesetzt ist.According to the invention, the intermediate further disc is connected at the edge to the disc, which is exposed to the ambient temperature.
Dabei wird der Abstand der zwischenliegenden, weiteren Scheibe, von der Scheibe, die der Umgebungstemperatur ausgesetzt ist, mittels Abstandshaltern, insbesondere zwischen 5 mm und 20 mm festgelegt.The distance between the intermediate, further pane, from the pane which is exposed to the ambient temperature, is determined by means of spacers, in particular between 5 mm and 20 mm.
Die Abstandshalter bestehen aus Materialien, die wärmedämmend wirken, insbesondere aus Keramik, Glas, Kunststoff oder Silikon.The spacers are made of materials that have a thermal insulation effect, in particular ceramic, glass, plastic or silicone.
Dies hat den Vorteil, daß die Wege der Wärmeleitung vom Türblech zu den zwischenliegenden Scheiben verlängert werden und damit deren Temperatur sinkt.This has the advantage that the paths of heat conduction from the door panel to the intervening panes are lengthened and their temperature drops.
In besonders bevorzugter Ausführungsform sind die Abstandshalter kompressibel und als Silikonschlauch ausgebildet.In a particularly preferred embodiment, the spacers are compressible and designed as a silicone tube.
Die Verwendung dieses zusammendrückbaren, kompressiblen Silikonschlauches ermöglicht problemlos den notwendigen Druckausgleich, wenn der Backofen aufgeheizt wird. Das komprimierbare Volumen des Silikonschlauches wird dabei den jeweilig auftretenden unterschiedlichen Temperaturdifferenzen und Luftvolumina zwischen den Scheiben angepaßt.The use of this compressible, compressible silicone hose easily enables the necessary pressure equalization when the oven is heated. The compressible volume of the silicone tube is adapted to the different temperature differences and air volumes that occur between the panes.
Um die zwischenliegende Scheibe, die Abstandshalter und die der Umgebungstemperatur ausgesetzte Scheibe zu verbinden wird nach der Erfindung ein temperaturbeständiger Kleber, insbesondere ein Silikonkleber verwendet.In order to connect the intermediate pane, the spacers and the pane exposed to the ambient temperature, a temperature-resistant adhesive, in particular a silicone adhesive, is used according to the invention.
Die Verwendung des Silikonklebers vereinfacht auch das Recycling des gebrauchten und zu entsorgenden Sichtfenster-Verbundes, da nur die beiden Werkstoffe Glas und Silikon anfallen.The use of the silicone adhesive also simplifies the recycling of the used and discarded window composite, since only the two materials glass and silicone are obtained.
Im bevorzugter Ausführungsform entsteht durch eine gasdichte Verklebung der Abstandshalter mit der zwischenliegenden Scheibe und der der Umgebungstemperatur ausgestzten Scheibe ein geschlossener Raum und somit ein isolierendes Sichtfenster.In a preferred embodiment, a gas-tight gluing of the spacers to the intermediate pane and the pane exposed to the ambient temperature creates a closed space and thus an insulating viewing window.
Der gasdicht abgeschlossene Raum zwischen den Scheiben kann mit einem schlecht wärmeleitenden Gas, z.B. Argon, Krypton oder Kohlendioxid gefüllt sein.The gas-tight space between the panes can be filled with a poorly heat-conducting gas, e.g. Argon, krypton or carbon dioxide.
Wenn die Abschichtung nicht, wie oben beschrieben über einen zusammendrückbaren Silikonschlauch erfolgt, muß der gasdicht abgeschlossene Raum über Möglichkeiten des Druckausgleiches bei Temperaturveränderungen verfügen.
Dies ist über einfache, bekannte Maßnahmen möglich.If the stratification does not take place via a compressible silicone hose, as described above, the gas-tightly sealed space must have options for pressure compensation in the event of temperature changes.
This is possible using simple, known measures.
Vorteilhaft kann es auch sein, mindestens eine der Scheiben ein- oder beidseitig mit einer wärmereflektierenden Schicht, insbesondere mit Zinndioxid zu versehen.It can also be advantageous to provide at least one of the panes on one or both sides with a heat-reflecting layer, in particular with tin dioxide.
Nach der vorliegenden Erfindung ist die zwischenliegende Scheibe des temperaturdämmenden Sichtfensters gleich groß oder größer, als die der Innenraumtemperatur des Gerätes ausgesetzte Scheibe, und kleiner als die der Umgebungstemperatur ausgesetzte Scheibe.According to the present invention, the intermediate pane of the temperature-insulating viewing window is the same size or larger than the pane exposed to the interior temperature of the device and smaller than the pane exposed to the ambient temperature.
Dies ist vorteilhaft, weil so mit relativ einfacher Konstruktion und wenig Materialverbrauch eine maximale Temperaturdämmung erreicht werden kann.This is advantageous because maximum temperature insulation can be achieved with a relatively simple construction and little material consumption.
In weiteren Ausführungsformen ist zwischen der zwischenliegenden weiteren Scheibe und der der Innenraumtemperatur des Gerätes ausgesetzten Scheibe mindestens eine weitere Scheibe mittels Verklebung angeordnet.In further embodiments, at least one further pane is arranged by means of adhesive between the further pane located therebetween and the pane exposed to the interior temperature of the device.
Diese Maßnahme ergibt einen besonders ausgeprägten temperaturdämmenden Effekt.This measure results in a particularly pronounced temperature-insulating effect.
Nach der Erfindung steht das Sichtfenster vormontiert als einbaufertige Einheit zur Montage in ein Gerät mit von der Umgebungstemperatur abweichender Innenraumtemperatur zur Verfügung.
Im folgenden wird die Erfindung unter Hinweis auf die beigefügten Zeichnungen anhand von bevorzugten Ausführungsbeispielen weiter erläutert.According to the invention, the viewing window is available pre-assembled as a ready-to-install unit for mounting in a device with an interior temperature that differs from the ambient temperature.
In the following the invention is further explained with reference to the accompanying drawings using preferred exemplary embodiments.
Es stellen dar:
- Fig.1.
- einen schematischen Schnitt durch ein temperaturdämmendes Sichtfenster (1) mit einer Frontscheibe (2), einer der Innenraumtemperatur ausgesetzten Scheibe (3) in einer Fronttürkonstruktion aus Blech (4).
Diese Abbildung zeigt eine nach der Erfindung mit Abstandhaltern (5) an der Frontscheibe (2) angebrachte zwischenliegende Scheibe (6). - Fig.2.
- eine ähnliche Konstruktion wie in Fig.1, nur sind hier zwei zwischenliegende Scheiben (6,6') gezeigt, die mittels Abstandhaltern (5,5') untereinander und mit der Frontscheibe (2) verbunden sind.
- Fig.3a/b
- ein Detail der Fig. 1
und 2, nämlich einen gasdicht mit Silikonkleber (7) und einem zusammendrückbaren Silikonschlauch (8) als Abstandhalter (5) gebildeten Scheibenzwischenraum (9), der von einer der Umgangstemperatur ausgesetzten Scheibe (2) und einer zwischenliegenden Scheibe (6) gebildet wird. - Fig.3a
- die Anordnung, wenn die Innenraumtemperatur und die Umgebungstemperatur etwa gleich sind.
- Fig.3b
- im Fall des Druckausgleiches, wie sich der kompressible Silikonschlauch (8) bei Expansion des erwärmten Gases im Scheibenzwischenraum (9) zusammendrückt.
- Fig.4
- eine frontale Aufsicht auf einen Teil des Sichtfensters (1) nach der Erfindung mit der der Umgebungstemperatur zugewandten Scheibe und der Position des zusammendrückbaren Silikonschlauches (8) mit seinem geschlossene (10) und offenen Ende (11), um den Druckausgleich zu ermöglichen.
- Fig. 1.
- a schematic section through a temperature-insulating window (1) with a front window (2), a window exposed to the interior temperature (3) in a front door construction made of sheet metal (4).
This figure shows an intermediate pane (6) attached to the front pane (2) according to the invention with spacers (5). - Fig. 2.
- a similar construction as in Fig.1, only two intermediate panes (6,6 ') are shown here, which are connected to each other and to the front pane (2) by means of spacers (5,5').
- Fig.3a / b
- a detail of FIGS. 1 and 2, namely a gas-tight with silicone adhesive (7) and a compressible silicone tube (8) as a spacer (5) formed between the panes (9), the one exposed to the working temperature disc (2) and an intermediate disc ( 6) is formed.
- Fig.3a
- the arrangement when the interior temperature and the ambient temperature are approximately the same.
- Fig.3b
- in the case of pressure equalization, how the compressible silicone tube (8) compresses in the space between the panes (9) when the heated gas expands.
- Fig. 4
- a front view of a part of the viewing window (1) according to the invention with the window facing the ambient temperature and the position of the compressible silicone tube (8) with its closed (10) and open end (11) to enable pressure equalization.
Im folgenden werden noch zwei Ausführungsbeispiele mit tatsächlich erreichten Meßdaten wiedergegeben:In the following, two exemplary embodiments are shown with the measurement data actually achieved:
Es wird ein handelsüblicher Haushaltsbackofen verwendet. Die Backofentür ist aus drei Sichtscheiben (innere, mittlere Scheibe und Frontscheibe) aufgebaut. Der Abstand zwischen innerer Scheibe und äußerer Scheibe beträgt 22 mm.A standard household oven is used. The oven door is made up of three viewing panels (inner, middle panel and front panel). The distance between the inner pane and the outer pane is 22 mm.
Die Scheibengröße der inneren und mittleren Scheibe beträgt ca. 400 x 300 mm². Die innere Scheibe besteht aus THERMAX 5000R, einem vorgespannten, wärmereflektierend beschichteten Kalk-Natron-Float-Glas. Die wärmereflektierende Schicht dieser Scheibe ist backraumabgewandt angeordnet. Die mittlere Scheibe und die Frontscheibe sind aus DURAXR, einem vorgespannten Kalk-Natron-Float-Glas. Die mittlere und innere Scheibe sind gemäß Abb.1 angeordnet. Hierbei ist die mittlere Scheibe mit einem schlauchförmig, umlaufenden Abstandshalter mit Hilfe eines temperaturbeständigen Silikonklebstoffes an der Frontscheibe befestigt.The pane size of the inner and middle pane is approximately 400 x 300 mm². The inner pane is made of THERMAX 5000 R , a toughened, heat-reflecting coated soda-lime float glass. The heat-reflecting layer of this pane is arranged facing away from the baking chamber. The middle pane and the front pane are made of DURAX R , a toughened soda-lime float glass. The middle and inner disc are arranged according to Fig.1. The middle pane is attached to the front pane with a tubular circumferential spacer using a temperature-resistant silicone adhesive.
Bei einer Backraumtemperatur von 200°C, die mit dem am Backofen vorgesehenen Regler eingestellt wird, ergibt sich bei Befestigung der mittleren Sichtscheibe am Türblech eine Frontscheiben-Oberflächentemperatur von 65°C. Bei der in Abb. 1 beschriebenen Montage ergibt sich eine Frontscheiben-Oberflächentemperatur von 60°C.At a baking chamber temperature of 200 ° C, which is set with the controller provided on the oven, the front window surface temperature of 65 ° C results when the middle viewing window is attached to the door panel. The assembly described in Fig. 1 results in a windscreen surface temperature of 60 ° C.
Für dieses Beispiel wird ein handelsüblicher Haushaltsbackofen verwendet, der zusätzlich mit der Möglichkeit pyrolytischer Selbstreinigung ausgestattet ist. Die Backofentür hat vier Scheiben (innere Scheibe, zwei mittlere Scheiben und eine Frontscheibe). Die innere und mittlere Scheibe haben die Größe von ca. 300 x 400 mm. Die innere und die vom Backraum aus nächste mittlere Scheibe sind auf der jeweils der anderen Scheibe zugewandten Seite mit einer wärmereflektierenden Schicht versehen. Die vom Backraum aus zweite mittlere Scheibe und die Frontscheibe sind aus DURAX. Die Frontscheibe ist eine gebogene Scheibe. Die Scheiben sind gemäß Abb.2 montiert. Die beiden mittleren Scheiben sind mit einem schlauchförmigen, umlaufenden Abstandshalter mit Hilfe von temperaturbeständigem Silikonklebstoff an der gebogenen Frontscheibe befestigt. Das gesamte Scheibenpacket hat eine Dicke von ca. 50 mm.A commercial household oven is used for this example, which is additionally equipped with the option of pyrolytic self-cleaning. The oven door has four windows (inner window, two middle windows and a front window). The inner and middle pane have the size of approx. 300 x 400 mm. The inner pane and the middle pane closest to the baking chamber are provided with a heat-reflecting layer on the side facing the other pane. The second middle pane from the baking chamber and the front pane are made of DURAX. The front window is a curved window. The disks are mounted as shown in Fig.2. The two middle panes are attached to the curved front pane with a tubular circumferential spacer using temperature-resistant silicone adhesive. The entire disc package has a thickness of approx. 50 mm.
Bei einer Backraumtemperatur von 200°C, die mit dem am Backofen vorgesehenen Regler eingestellt wird, ergibt sich bei herkömmlicher Montage der inneren und mittleren Scheibe am Türblech eine Frontscheiben-Oberflächentemperatur von 63°C. Bei Montage der mittleren Scheiben gemäß Abb. 2 beträgt die Frontscheiben-Oberflächentemperatur 45°C.At a baking chamber temperature of 200 ° C, which is set with the controller provided on the oven, the windscreen surface temperature of 63 ° C results with conventional mounting of the inner and middle panes on the door panel. When installing the middle panes as shown in Fig. 2, the windscreen surface temperature is 45 ° C.
Bei pyrolytischer Selbstreinigung (Backofentemperatur 480 - 500°C) wird sonst eine Frontscheiben-Oberflächentemperatur von 150°C erreicht, bei gemäß dieser Erfindung in Abb. 2 beschriebener Montage nur 110°C.With pyrolytic self-cleaning (oven temperature 480 - 500 ° C), a windshield surface temperature of 150 ° C is otherwise achieved, with installation according to this invention in Fig. 2 only 110 ° C.
Claims (18)
dadurch gekennzeichnet,
daß zwischen der, der Umgebungstemperatur und der, der Innenraumtemperatur des Gerätes ausgesetzten Scheibe mindestens eine weitere Scheibe angeordnet ist.Temperature-insulating viewing window or door for a device with an interior temperature that deviates from its ambient temperature, in particular for cooking or baking ovens or drying cabinets, with an arrangement of glass, glass ceramic or another transparent temperature-resistant material positioned at a distance from a common frame,
characterized,
that at least one further disc is arranged between the, the ambient temperature and the, the interior temperature of the device exposed.
dadurch gekennzeichnet,
daß alle Scheiben parallel zueinander angeordnet sind.Temperature-insulating viewing window according to claim 1,
characterized,
that all disks are arranged parallel to each other.
dadurch gekennzeichnet,
daß mindestens zwei Scheiben einen spitzen Winkel, insbesondere zwischen 0.5° und 10° miteinander bilden.Temperature-insulating viewing window according to claim 1,
characterized,
that at least two disks form an acute angle, in particular between 0.5 ° and 10 °.
dadurch gekennzeichnet,
daß die Scheiben unterschiedliche Materialzusammensetzungen aufweisen.Temperature-insulating viewing window according to claims 1 to 3,
characterized,
that the disks have different material compositions.
dadurch gekennzeichnet,
daß die zwischenliegende, weitere Scheibe randlich mit der Scheibe verbunden ist, die der Umgebungstemperatur ausgesetzt ist.Temperature-insulating viewing window according to claims 1 to 4,
characterized,
that the intermediate, further disc is connected at the edge to the disc which is exposed to the ambient temperature.
dadurch gekennzeichnet,
daß der Abstand der zwischenliegenden, weiteren Scheibe von der Scheibe, die der Umgebungstemperatur ausgesetzt ist, mittels Abstandshaltern, insbesondere zwischen 5 mm und 20 mm festgelegt ist.Temperature-insulating viewing window according to claims 1 to 5,
characterized,
that the distance between the intermediate, further pane from the pane, which is exposed to the ambient temperature, is determined by means of spacers, in particular between 5 mm and 20 mm.
dadurch gekennzeichnet,
daß die Abstandshalter aus Materialien, die wärmedämmend wirken, insbesondere aus Keramik, Glas, Kunststoff oder Silikon bestehen.Temperature-insulating viewing window according to claim 6,
characterized,
that the spacers consist of materials that have a heat-insulating effect, in particular ceramic, glass, plastic or silicone.
dadurch gekennzeichnet,
daß die Abstandshalter kompressibel, insbesondere als kompressibler Schlauch ausgebildet sind.Temperature-insulating viewing window according to claims 6 and 7,
characterized,
that the spacers are compressible, in particular as a compressible hose.
dadurch gekennzeichnet,
daß das Volumen des kompressiblen Schlauches den Druckausgleich bei Temperaturänderungen ermöglicht.Temperature-insulating viewing window according to claim 8,
characterized,
that the volume of the compressible hose enables pressure equalization in the event of temperature changes.
dadurch gekennzeichnet,
daß die zwischenliegende Scheibe, die Abstandshalter und die der Umgebungstemperatur ausgesetzte Scheibe mittels eines temperaturbeständigen Klebers, insbesondere mittels eines Silikonklebers verbunden sind.Temperature-insulating viewing window according to claims 1 to 9,
characterized,
that the intermediate disc, the spacers and the disc exposed to the ambient temperature are connected by means of a temperature-resistant adhesive, in particular by means of a silicone adhesive.
dadurch gekennzeichnet,
daß zwischen der zwischenliegenden, weiteren Scheibe und der der Umgebungstemperatur ausgesetzten Scheibe durch eine gasdichte Klebeverbindung der Abstandshalter ein geschlossener Raum vorliegt.Temperature-insulating viewing window according to claims 1 to 10,
characterized,
that there is a closed space between the intermediate, further pane and the pane exposed to the ambient temperature through a gas-tight adhesive connection of the spacers.
dadurch gekennzeichnet,
daß der gasdicht abgeschlossene Raum mit einem Gas, insbesondere Argon, Krypton oder Kohlendioxid, gefüllt ist.Temperature-insulating viewing window according to claim 11,
characterized,
that the gas-tight space is filled with a gas, in particular argon, krypton or carbon dioxide.
dadurch gekennzeichnet,
daß der gasdicht abgeschlossene Raum über Möglichkeiten des Druckausgleiches bei Temperaturänderungen verfügt.Temperature-insulating viewing window according to claims 11 and 12,
characterized,
that the gas-tight room has options for pressure compensation in the event of temperature changes.
dadurch gekennzeichnet,
daß mindestens eine der Scheiben ein- oder beidseitig wärmereflektierend, insbesondere mit fluordotiertem Zinndioxid beschichtet ist.Temperature-insulating viewing window according to claims 1 to 12,
characterized,
that at least one of the disks is heat-reflecting on one or both sides, in particular coated with fluorine-doped tin dioxide.
dadurch gekennzeichnet,
daß die zwischenliegende Scheibe gleich groß oder größer ist, als die der Innenraumtemperatur des Gerätes ausgesetzte Scheibe.Temperature-insulating viewing window according to claims 1 to 14,
characterized,
that the intermediate pane is the same size or larger than the pane exposed to the interior temperature of the device.
dadurch gekennzeichnet,
daß die zwischenliegende Scheibe kleiner ist als die der Umgebungstemperatur ausgesetzte Scheibe.Temperature-insulating viewing window according to claims 1 to 15,
characterized,
that the intermediate disc is smaller than the disc exposed to the ambient temperature.
dadurch gekennzeichnet,
daß zwischen der zwischenliegenden, weiteren Scheibe und der der Innenraumtemperatur des Gerätes ausgesetzten Scheibe mindestens eine weitere Scheibe mittels Verklebung angeordnet ist.Temperature-insulating viewing window according to claims 1 to 16,
characterized,
that at least one further pane is arranged by means of gluing between the intermediate, further pane and the pane exposed to the interior temperature of the device.
dadurch gekennzeichnet,
daß es als einbaufertige Einheit zum Einbau in ein Gerät mit von der Umgebungstemperatur abweichender Innenraumtemperatur zur Verfügung steht.Temperature-insulating viewing window according to claims 1 to 17,
characterized,
that it is available as a ready-to-install unit for installation in a device with an interior temperature that deviates from the ambient temperature.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4333033A DE4333033C1 (en) | 1993-09-29 | 1993-09-29 | Temperature-insulating viewing window or door for a device with an internal temperature that deviates from its ambient temperature |
| DE4333033 | 1993-09-29 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0646753A2 true EP0646753A2 (en) | 1995-04-05 |
| EP0646753A3 EP0646753A3 (en) | 1995-12-20 |
| EP0646753B1 EP0646753B1 (en) | 1998-08-26 |
Family
ID=6498866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94106719A Expired - Lifetime EP0646753B1 (en) | 1993-09-29 | 1994-04-29 | Thermal insulated door window unit for an appliance with an inner temperature differing from the ambient one |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5588421A (en) |
| EP (1) | EP0646753B1 (en) |
| DE (2) | DE4333033C1 (en) |
| ES (1) | ES2120536T3 (en) |
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| DE7706648U1 (en) * | 1977-03-04 | 1977-06-16 | Tds Technische Dichtungssysteme Gmbh, 6000 Frankfurt | CLEAR THERMAL PROTECTION ELEMENT FOR OVENS, HEATING CHAMBERS AND THE LIKE |
| DE2726027A1 (en) * | 1977-06-08 | 1978-12-21 | Linde Ag | Double glazing using gas filling to provide insulation - where gas can expand or contract in elastic tube to prevent leakage |
| FR2543608B1 (en) * | 1983-03-28 | 1987-08-07 | Mondon Charles | "MENUISE" ENERGY GLAZING |
| FR2552153B1 (en) * | 1983-09-15 | 1987-07-10 | Ouest Vitrages Isolants | ELEMENT FOR DOOR OR WINDOW OR FRONT PANEL, INCLUDING TWO PLANE PANELS SEPARATED BY GAS WITH COMPENSATED VOLUME VARIATION |
| DE3602455A1 (en) * | 1986-01-28 | 1987-07-30 | Gaggenau Werke | Baking oven |
| US4835926A (en) * | 1988-08-18 | 1989-06-06 | King Richard T | Spacer element for multiglazed windows and windows using the element |
| BE1003582A5 (en) * | 1989-02-02 | 1992-04-28 | Glaverbel | Glass multiple vehicle and manufacturing method thereof. |
| DE4206820A1 (en) * | 1991-08-28 | 1993-03-04 | Bosch Siemens Hausgeraete | OVEN DOOR |
-
1993
- 1993-09-29 DE DE4333033A patent/DE4333033C1/en not_active Expired - Fee Related
-
1994
- 1994-04-29 EP EP94106719A patent/EP0646753B1/en not_active Expired - Lifetime
- 1994-04-29 ES ES94106719T patent/ES2120536T3/en not_active Expired - Lifetime
- 1994-04-29 DE DE59406766T patent/DE59406766D1/en not_active Expired - Fee Related
- 1994-09-29 US US08/315,116 patent/US5588421A/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2310084A1 (en) * | 1972-03-02 | 1973-09-06 | Glaverbel | THERMAL INSULATION SHIELD |
| DE2545531A1 (en) * | 1975-10-10 | 1977-04-14 | Bosch Siemens Hausgeraete | Inspection door for self:cleaning ovens - with the spacing between glass sheets of inner laminate less than that between an outer sheet and laminate |
| DE4209622A1 (en) * | 1992-03-25 | 1993-09-30 | Schott Glaswerke | View window for domestic cooker - comprises several plates with at least one sloping in relation to the others |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1860270A2 (en) | 2006-05-24 | 2007-11-28 | Peter Lisec | Insulating glass unit with an elastoplastic spacer band and application method for the latter |
| EP1860270A3 (en) * | 2006-05-24 | 2010-03-24 | Peter Lisec | Insulating glass unit with an elastoplastic spacer band and application method for the latter |
| EP1939532A2 (en) * | 2006-12-19 | 2008-07-02 | BSH Bosch und Siemens Hausgeräte GmbH | Door for a domestic appliance for preparing food, in particular oven door |
| EP1939532A3 (en) * | 2006-12-19 | 2011-01-12 | BSH Bosch und Siemens Hausgeräte GmbH | Door for a domestic appliance for preparing food, in particular oven door |
| EP2362150B1 (en) * | 2010-02-26 | 2017-05-10 | Electrolux Home Products Corporation N.V. | An oven door for a domestic cooking oven |
| WO2013139638A1 (en) * | 2012-03-21 | 2013-09-26 | BSH Bosch und Siemens Hausgeräte GmbH | Door having an unventilated cavity for a domestic thermal treatment device |
| WO2013164464A3 (en) * | 2012-05-03 | 2014-05-01 | Electrolux Home Products Corporation N. V. | An arrangement of glass panels for a heat insulated oven door for a cooking oven |
| US10274203B2 (en) | 2012-05-03 | 2019-04-30 | Electrolux Home Products Corporation N.V. | Arrangement of glass panels for a heat insulated oven door for a cooking oven |
| EP2824392A1 (en) * | 2013-07-09 | 2015-01-14 | BSH Bosch und Siemens Hausgeräte GmbH | Domestic appliance |
| WO2016079060A1 (en) * | 2014-11-18 | 2016-05-26 | BSH Hausgeräte GmbH | Cooking appliance comprising a door which has a mutli-part inner side |
| WO2018108483A1 (en) * | 2016-12-12 | 2018-06-21 | BSH Hausgeräte GmbH | Household cooking appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| US5588421A (en) | 1996-12-31 |
| EP0646753B1 (en) | 1998-08-26 |
| DE4333033C1 (en) | 1995-05-24 |
| ES2120536T3 (en) | 1998-11-01 |
| DE59406766D1 (en) | 1998-10-01 |
| EP0646753A3 (en) | 1995-12-20 |
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