EP2905542A1 - Cooling of door components - Google Patents
Cooling of door components Download PDFInfo
- Publication number
- EP2905542A1 EP2905542A1 EP15152241.4A EP15152241A EP2905542A1 EP 2905542 A1 EP2905542 A1 EP 2905542A1 EP 15152241 A EP15152241 A EP 15152241A EP 2905542 A1 EP2905542 A1 EP 2905542A1
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- EP
- European Patent Office
- Prior art keywords
- channel
- cooking appliance
- appliance according
- door
- temperature
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- 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.)
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Classifications
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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
- F24C15/006—Arrangements for circulation of cooling air
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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
- F24C15/20—Removing cooking fumes
- F24C15/2007—Removing cooking fumes from oven cavities
Definitions
- the invention relates to a cooking appliance according to the preamble of claim 1.
- the DE198912878U1 shows a cooking appliance with a fan and a first, disposed within a device housing channel, wherein a guided through the first channel air flow blows out warm air and vapor.
- the object of the invention is to improve known cooking appliances.
- One possible improvement is to ensure sufficient cooling of temperature-critical door components.
- An inventive cooking appliance has a fan and a first, disposed within a device housing channel, wherein a guided through the first channel air flow expels warm air and / or vapor.
- the cooking appliance has a second channel arranged inside the appliance housing, which is provided for cooling at least one temperature-critical door component.
- a fan should in particular be understood to mean a driven turbomachine which conveys a gaseous medium by means of a rotating impeller.
- a channel is to be understood, in particular, as a ventilation duct, which is suitable for conducting an air flow essentially lossless and as frictionless as possible through the cooking appliance.
- Such a channel consists at least in sections of mostly rectangular or round cross-sections which extend tubular, funnel or trumpet-shaped.
- Such a first channel diverts an air flow from the inside of the cooking appliance to the environment.
- the extracted air stream includes warm air, which is removed for cooling components from these areas, and / or vapor, which is sucked out of the cooking chamber and consists of a mixture of warm air and water vapor and fat particles.
- a second channel should in particular be understood to mean a ventilation duct formed independently of the first duct, which air flow from the inside of the cooking device directed specifically to temperature-critical components of the cooking appliance door. Due to the passing air flow, the surface temperature of the temperature-critical door components is lowered and a heat dissipation caused by the air flow, which leads to a decrease in the component temperature.
- second channel is arranged so that it is fed by the air flow of the first blower.
- the air flow of the first blower is used to cool the temperature-critical door components.
- the second channel can be arranged substantially parallel to the first channel, as a so-called bypass.
- a particularly good cooling of the temperature-critical door components arises when the second channel between fan and Wraseneinlass is connected to the first channel. Thus, no contaminated with Wrasen air flow is directed into the second channel and on the door components to be cooled.
- the second channel which is arranged within a device housing, is connected to a further blower located in the cooking device and is fed by this further blower.
- a further fan is to be understood as meaning, in particular, a further fan present in the cooking appliance, which serves for ventilating or cooling components.
- blowers which transport clean air and no vapors, such as e.g. the blower for cooling the microwave components.
- a further variant provides that the second channel, which is arranged within a device housing, is connected to a further, specially installed blower for supplying the second channel, and is fed by this fan.
- a particularly good cooling of temperature-critical door components is erztilt when the second channel is equipped with an extra blower, which must be matched to any other functions, and thus purely adapted to the required air flow and the cross section of the second channel and controlled separately and regulated can be.
- the motor of the blower according to one of the variants described above is a variable speed motor.
- Particularly suitable variable speed is a variable speed motor.
- the second channel opens into an exhaust opening on a housing flange.
- an exhaust opening is to be understood as the area at which the air flow leaves the channel and escapes into the ambient atmosphere.
- a housing flange is to be understood in particular as the portion of the cooking appliance which surrounds the cooking chamber opening. This extends parallel to the cooking appliance front and closes the side of the section between cooking and housing side wall, below between cooking and floor panel and above between cooking and control panel, so that a substantially frame-shaped housing flange is formed.
- the housing flange also serves as a stop and contact surface for the cooking chamber door to achieve a seal of the cooking chamber to the environment.
- the housing flange has at least one exhaust opening for blowing out the volume flow.
- the exhaust opening may be an element formed from the housing flange, for example a deep-drawn element, or a separate element mounted in the housing flange, for example a plastic component.
- the blow-out opening can be designed as an opening that points essentially over the width of the housing flange.
- Vertical cross struts can increase the stability of the housing flange.
- the exhaust openings may consist of a plurality, preferably three, juxtaposed openings, which are preferably formed substantially oval.
- the exhaust openings may consist of a plurality of juxtaposed openings, which are preferably round.
- the at least one exhaust opening of the second channel is directed downwards in the direction of discharge.
- the airflow flowing through the second passage through the exhaust port is directed downward.
- This direction of the cooling air flow is particularly advantageous since an air flow which does not occur perpendicularly to a surface produces a better removal of the heat. moreover A downwardly directed airflow flows away from possible air intake areas of the housing cooling.
- the at least one exhaust opening is directed to a temperature-critical door component.
- a temperature-critical component is to be understood in particular as meaning components which do not withstand the temperatures customary in the cooking appliance. These amount to up to approx. 280 degrees Celsius in the cooking chamber during a cooking process or up to approx. 500 degrees Celsius in the case of a pyrolytic self-cleaning process.
- the door components are about 300 degrees Celsius.
- plastic components do not withstand this thermal load and bend, or melt, burn or become brittle. Examples of such components are frame parts of the door, covers, design elements, elements of lights, covers of microwave traps or sealing elements.
- a particularly good cooling of these temperature-critical components arises when the exhaust openings and thus the air streams are directed to these components.
- the exhaust openings are arranged on the housing flange corresponding, in particular opposite and thus arranged at the same height to the door components to be cooled.
- the temperature-critical door component is formed from a plastic, in particular an LCP plastic.
- a plastic made of liquid crystalline polymers, also called liquid crystalline polymers (LCP)
- LCP liquid crystalline polymers
- both the first channel and the second channel open in the housing flange, which are preferably arranged überchrome.
- This arrangement produces a particularly simple device structure, which also forms an appealing visual appearance. It is optional whether the first channel is arranged above the second channel or vice versa.
- a further opening for a third channel is arranged in / on the housing flange. These are preferably used to supply the blower with fresh air from the environment of the cooking appliance.
- the volume flow of the second channel generates an air flow between the housing flange and the door bottom, wherein the latter cools the temperature-critical door components.
- the area of the door should be understood, which is the device flange opposite. This is the frame-like outer region of the inner pane in the case of a conventional door.
- a particularly good cooling of the temperature-critical components of the door arises when in the gap, which remains in a closed cooking chamber door between the door bottom and the housing flange, through the preferably downward air flow of the second channel, the air flow can be continued and thus transported away the excess heat becomes.
- the air is blown in the upper part of the door through the exhaust openings in this gap and directed down through the gap in the side areas of the door to the lower end of the door, where the air flow escapes into the environment.
- a seal is arranged in the gap between the housing flange and door bottom, which is cooled by the air flow described above in the gap between the housing flange and the door bottom.
- the energy efficiency of the cooking appliance can be increased because less energy is released to the environment.
- a particularly good seal is created when the seal is made of a silicone-containing material. Due to the air flow and the associated removal of heat such a silicone gasket can also be used in a high temperature environment.
- FIG. 1 is shown in a perspective view of a cooking appliance 1 for preparing food, which is an oven in the embodiment.
- the cooking appliance 1 comprises a cooking chamber 2, which is bounded by the side walls 3 of the oven.
- the cooking chamber 2 has a charging opening, which can be closed by a door 4.
- Gargutto On the side walls 3 is ever a Gargutlinifact 5, which is suitable, Gargutlini 6, such.
- the open door 4 gives the view of the housing flange 7 free, which is arranged like a frame around the loading opening of the cooking chamber 2 and serves as a bearing surface for the closed door 4.
- FIG. 2 shows in a side view of a cooking appliance 1 - along the section AA FIG. 4 -
- a second channel 9 for cooling temperature-critical door components 11 and / or the housing flange 7 is arranged. This is arranged corresponding to the door components 11 to be cooled, so that they are blown by a guided through the second channel 9 air flow.
- a third channel 10 can be seen, which the cooking appliance 1 with Supplied fresh air. This fresh air is sucked through the door 4 in the embodiment.
- FIG. 3 shows a plan view of a cooking appliance 1 without the upper housing cover, so that the housing ventilation can be seen.
- the fan 12 draws air from the interior of the cooking appliance 1 and / or draws fresh air through the third channel 10 from the environment of the cooking appliance 1 and generates with this sucked air an air flow in the first channel 8.
- This air stream sweeps over a vents flap thirteenth , which is a connection to the cooking chamber 2, and takes excess fumes, consisting of a mixture of warm air and water vapor and fat particles, with.
- About a blowout of the housing flange 7 escapes this air flow into the environment.
- the fan 12 feeds a second channel 9 with fresh air.
- the air flow through the channel 9 opens into a blow-out opening 14, which is arranged in the housing flange 7. From there, the air stream flows to temperature-critical door components 11, which can give off their surface temperature by the air flow and its turbulence and are thereby cooled.
- FIG. 4 shows a front view of a cooking appliance 1 with open door 4, which releases the view of the cooking chamber 2, which is surrounded by the housing flange 7.
- the blown air stream cools the temperature critical door components 11, the third channel 10, the sucked air flow serves as fresh air for the fan 12, and the first channel 8, the blown air stream, the waste heat and releases the vapor to the environment.
- the closed gap hiding the remaining gap hull housing flange 7 and door bottom 16 in the manner that less heat is released to the environment, which contributes to the energy efficiency of the cooking device 1 with the door closed.
- Such a seal 15 is usually made of a silicone, which is not suitable for higher temperatures, in particular in pyrolytic self-cleaning processes due to the known material properties.
- the exhaust ports 14 are turned obliquely down, so that the channel 9 flowing air flow between Housing flange 7 and door bottom 16 is directed downward in the direction of seal 15 and this also cools.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Ovens (AREA)
Abstract
Die Erfindung betrifft ein Gargerät mit einem Gebläse und einem ersten, innerhalb eines Gerätegehäuses angeordneten Kanal, wobei ein durch den ersten Kanal geführter Luftstrom warme Luft ausbläst, und ein zweiter, innerhalb des Gerätegehäuses angeordneter Kanal, zum Kühlen von zumindest einer temperaturkritischen Türkomponente, angeordnet ist.The invention relates to a cooking appliance with a fan and a first, disposed within a device housing channel, wherein a guided through the first channel air flow expels warm air, and a second, disposed within the device housing channel, for cooling of at least one temperature-critical door component, is arranged ,
Description
Die Erfindung betrifft ein Gargerät nach dem Oberbegriff des Anspruchs 1.The invention relates to a cooking appliance according to the preamble of
Die
Aufgabe der Erfindung ist es, bekannte Gargeräte zu verbessern. Eine mögliche Verbesserung ist es, die ausreichende Kühlung von temperaturkritischen Türkomponenten zu gewährleisten.The object of the invention is to improve known cooking appliances. One possible improvement is to ensure sufficient cooling of temperature-critical door components.
Die Aufgabe wird erfindungsgemäß durch die Merkmale des Patenanspruchs 1 gelöst, während vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung den Unteransprüchen entnommen werden können.The object is achieved by the features of
Ein erfindungsgemäßes Gargerät weist ein Gebläse und einen ersten, innerhalb eines Gerätegehäuses angeordneten Kanal auf, wobei ein durch den ersten Kanal geführter Luftstrom warme Luft und/oder Wrasen ausbläst. Erfindungsgemäß weist das Gargerät einen zweiten, innerhalb des Gerätegehäuses angeordneten Kanal auf, der zum Kühlen von zumindest einer temperaturkritischen Türkomponente vorgesehen ist. Unter einem Gebläse soll insbesondere eine angetriebene Strömungsmaschine verstanden werden, die mittels eines rotierenden Laufrads ein gasförmiges Medium fördert. Unter einem Kanal soll insbesondere ein Lüftungskanal verstanden werden, der geeignet ist, einen Luftstrom im Wesentlichen verlustfrei und möglichst reibungsfrei durch das Gargerät zu leiten. Solch ein Kanal besteht zumindest Abschnittsweise aus zumeist rechteckigen oder runden Querschnitten, welche sich rohr-, trichter- oder trompetenförmig erstrecken. Solch ein erster Kanal leitet einen Luftstrom aus dem inneren des Gargeräts an die Umgebung ab. Der abgesaugte Luftstrom beinhaltet warme Luft, welche zur Kühlung von Komponenten aus diesen Bereichen abgeführt wird, und/oder Wrasen, welcher aus dem Garraum abgesaugt wird und aus einem Gemisch aus warmer Luft sowie Wasserdampf- und Fettpartikeln besteht. Unter einem zweiten Kanal soll insbesondere ein unabhängig vom ersten Kanal ausgebildeter Lüftungskanal verstanden werden, welcher einen Luftstrom aus dem inneren des Gargeräts gezielt auf temperaturkritische Bauteile der Gargerätetür leitet. Durch den vorbeistreichenden Luftstrom wird die Oberflächentemperatur der temperaturkritischen Türkomponenten gesenkt und ein Wärmeabtransport durch den Luftstrom erzeugt, was zum Absinken der Bauteiltemperatur führt.An inventive cooking appliance has a fan and a first, disposed within a device housing channel, wherein a guided through the first channel air flow expels warm air and / or vapor. According to the invention, the cooking appliance has a second channel arranged inside the appliance housing, which is provided for cooling at least one temperature-critical door component. A fan should in particular be understood to mean a driven turbomachine which conveys a gaseous medium by means of a rotating impeller. A channel is to be understood, in particular, as a ventilation duct, which is suitable for conducting an air flow essentially lossless and as frictionless as possible through the cooking appliance. Such a channel consists at least in sections of mostly rectangular or round cross-sections which extend tubular, funnel or trumpet-shaped. Such a first channel diverts an air flow from the inside of the cooking appliance to the environment. The extracted air stream includes warm air, which is removed for cooling components from these areas, and / or vapor, which is sucked out of the cooking chamber and consists of a mixture of warm air and water vapor and fat particles. A second channel should in particular be understood to mean a ventilation duct formed independently of the first duct, which air flow from the inside of the cooking device directed specifically to temperature-critical components of the cooking appliance door. Due to the passing air flow, the surface temperature of the temperature-critical door components is lowered and a heat dissipation caused by the air flow, which leads to a decrease in the component temperature.
Vorzugsweise ist der innerhalb eines Gerätegehäuses befindliche zweite Kanal so angeordnet, dass er vom Luftstrom des ersten Gebläses gespeist ist. Somit wird der Luftstrom des ersten Gebläses genutzt, um die temperaturkritischen Türkomponenten zu kühlen. Dabei kann der zweite Kanal im Wesentlichen parallel zum ersten Kanal, als sogenannter Bypass angeordnet sein. Eine besonders gute Kühlung der temperaturkritischen Türkomponenten entsteht, wenn der zweite Kanal zwischen Gebläse und Wraseneinlass an den ersten Kanal angeschlossen ist. So wird kein mit Wrasen belasteter Luftstrom in den zweiten Kanal und auf die zu kühlenden Türkomponenten geleitet.Preferably, located within a device housing second channel is arranged so that it is fed by the air flow of the first blower. Thus, the air flow of the first blower is used to cool the temperature-critical door components. In this case, the second channel can be arranged substantially parallel to the first channel, as a so-called bypass. A particularly good cooling of the temperature-critical door components arises when the second channel between fan and Wraseneinlass is connected to the first channel. Thus, no contaminated with Wrasen air flow is directed into the second channel and on the door components to be cooled.
Gemäß einer Variante ist der innerhalb eines Gerätegehäuses angeordnete zweite Kanal an einem weiteren, im Gargerät befindlichen Gebläse angeschlossen und wird von diesem weiteren Gebläse gespeist. Unter einem weiteren Gebläse soll insbesondere ein im Gargerät vorhandenes weiteres Gebläse verstanden werden, welches zur Lüftung oder Kühlung von Bauteilen dient. Dazu eignen sich insbesondere Gebläse, welche reine Luft und keinen Wrasen transportieren, wie z.B. das Gebläse zur Kühlung der Mikrowellenkomponenten.According to a variant, the second channel, which is arranged within a device housing, is connected to a further blower located in the cooking device and is fed by this further blower. A further fan is to be understood as meaning, in particular, a further fan present in the cooking appliance, which serves for ventilating or cooling components. Particularly suitable for this purpose are blowers which transport clean air and no vapors, such as e.g. the blower for cooling the microwave components.
Eine weiteren Variante sieht vor, dass der innerhalb eines Gerätegehäuses angeordnete zweite Kanal an einem weiteren speziell zur Versorgung des zweiten Kanals eingebauten weiteren Gebläse angeschlossen und wird von diesem Gebläse gespeist ist. Eine besonders gute Kühlung von temperaturkritischen Türkomponenten wird erzeilt, wenn der zweite Kanal mit einem extra Gebläse ausgestattet ist, welches auf keine Weiteren Funktionen abgestimmt sein muß, und somit rein auf die benötigte Luftströmung und den Querschnitt des zweiten Kanals angepasst ist und separat angesteuert und geregelt werden kann.A further variant provides that the second channel, which is arranged within a device housing, is connected to a further, specially installed blower for supplying the second channel, and is fed by this fan. A particularly good cooling of temperature-critical door components is erztilt when the second channel is equipped with an extra blower, which must be matched to any other functions, and thus purely adapted to the required air flow and the cross section of the second channel and controlled separately and regulated can be.
Vorzugsweise ist der Motor des Gebläses nach einem der voran beschriebenen Varianten ein drehzahlvariabler Motor. Als besonders geeignet haben sich drehzahlvariablePreferably, the motor of the blower according to one of the variants described above is a variable speed motor. Particularly suitable variable speed
Motoren, insbesondere bürstenlose Motoren (abgekürzt BLDC- oder BL-Motor bzw. electronically commutated Motor, kurz EC-Motor) erwiesen, da sie den erzeugten Volumenstrom im Bedarfsfall einer erhöhten Kühlleistung, z.B. bei einem pyrolytischen Selbstreinigungsprozess, erhöhen können, indem sie die Drehzahl erhöhen. Alternativ sind jegliche Art von Motoren, wie auch Spaltmotoren möglich.Engines, in particular brushless motors (abbreviated BLDC or BL motor or electronically commutated motor, short EC motor) proven, since they the volume flow generated in case of need an increased cooling capacity, e.g. in a pyrolytic self-cleaning process, by increasing the speed. Alternatively, any kind of motors, as well as split motors are possible.
Vorzugsweise mündet der zweite Kanal in eine Ausblasöffnung an einem Gehäuseflansch. Dabei ist unter einer Ausblasöffnung der Bereich zu verstehen, an dem die Luftströmung den Kanal verlässt und in die Umgebungsatmosphäre entweicht. Unter einem Gehäuseflansch ist insbesondere der Abschnitt des Gargeräts zu verstehen, der die Garraumöffnung umgibt. Dieser erstreckt sich parallel zur Gargerätefront und schließt seitlich den Abschnitt zwischen Garraum und Gehäuseseitenwand, unterhalb zwischen Garraum und Bodenblech und oberhalb zwischen Garraum und Bedienblende, so dass ein im Wesentlichen rahmenförmiger Gehäuseflansch entsteht. Der Gehäuseflansch dient zudem als Anschlag- und Kontaktfläche für die Garraumtüre, um eine Abdichtung des Garraums zur Umgebung zu erzielen.Preferably, the second channel opens into an exhaust opening on a housing flange. In this case, an exhaust opening is to be understood as the area at which the air flow leaves the channel and escapes into the ambient atmosphere. A housing flange is to be understood in particular as the portion of the cooking appliance which surrounds the cooking chamber opening. This extends parallel to the cooking appliance front and closes the side of the section between cooking and housing side wall, below between cooking and floor panel and above between cooking and control panel, so that a substantially frame-shaped housing flange is formed. The housing flange also serves as a stop and contact surface for the cooking chamber door to achieve a seal of the cooking chamber to the environment.
Vorzugsweise weist der Gehäuseflansch zumindest eine Ausblasöffnung zum Ausblasen des Volumenstroms auf. Dabei kann die Ausblasöffnung ein aus dem Gehäuseflansch gebildetes Element, beispielsweise ein tiefgezogenes Element, oder ein separates, im Gehäuseflansch gelagertes Element, beispielsweise ein Kunststoffbauteil, sein. Die Ausblasöffnung kann als eine im Wesentlichen über die Breite des Gehäuseflanschs weisende Öffnung ausgeführt sein. Dabei können senkrechte Querstreben die Stabilität des Gehäuseflanschs verstärken. Alternativ können die Ausblasöffnungen aus mehreren, vorzugsweise drei, nebeneinander angeordneten Öffnungen bestehen, welche vorzugsweise im Wesentlichen oval ausgebildet sind. Alternativ können die Ausblasöffnungen aus einer Vielzahl nebeneinander angeordneter Öffnungen bestehen, welche vorzugsweise rund ausgebildet sind.Preferably, the housing flange has at least one exhaust opening for blowing out the volume flow. In this case, the exhaust opening may be an element formed from the housing flange, for example a deep-drawn element, or a separate element mounted in the housing flange, for example a plastic component. The blow-out opening can be designed as an opening that points essentially over the width of the housing flange. Vertical cross struts can increase the stability of the housing flange. Alternatively, the exhaust openings may consist of a plurality, preferably three, juxtaposed openings, which are preferably formed substantially oval. Alternatively, the exhaust openings may consist of a plurality of juxtaposed openings, which are preferably round.
Vorzugsweise ist die zumindest eine Ausblasöffnung des zweiten Kanals in Ausblasrichtung nach unten gerichtet. Durch diese Ausgestaltung wird der durch den zweiten Kanal durch die Ausblasöffnung strömende Luftstrom nach unten gerichtet. Diese Richtung des Kühlluftstroms ist besonders vorteilhaft, da ein nicht senkrecht auf eine Fläche auftretender Luftstrom einen besseren Abtransport der Wärme erzeugt. Zudem strömt ein nach unten gerichteter Luftstrom weg von möglichen Luftansaugbereichen der Gehäusekühlung.Preferably, the at least one exhaust opening of the second channel is directed downwards in the direction of discharge. With this configuration, the airflow flowing through the second passage through the exhaust port is directed downward. This direction of the cooling air flow is particularly advantageous since an air flow which does not occur perpendicularly to a surface produces a better removal of the heat. moreover A downwardly directed airflow flows away from possible air intake areas of the housing cooling.
Vorzugsweise ist die zumindest eine Ausblasöffnung auf eine temperaturkritische Türkomponente gerichtet. Unter einer temperaturkritischen Komponente sollen insbesondere Bauteile verstanden werden, welche den im Gargerät üblichen Temperaturen nicht standhalten. Diese betragen im Garraum bei einem Garprozess bis zu ca. 280 Grad Celsius oder bei einem pyrolytischen Selbstreinigungsprozess bis zu ca. 500 Grad Celsius. An den Türkomponenten kommen dabei rund 300 Grad Celsius an. Insbesondere Bauteile aus Kunststoff halten dieser thermischen Belastung nicht stand und verbiegen sich, bzw. schmelzen, verbrennen oder werden spröde. Beispiele für solche Komponenten sind Rahmenteile der Türe, Abdeckungen, Designelemente, Elemente von Leuchten, Abdeckungen von Mikrowellenfallen oder Dichtungselementen. Eine besonders gute Kühlung dieser temperaturkritischen Komponenten entsteht, wenn die Ausblasöffnungen und somit die Luftströme direkt auf diese Bauteile gerichtet sind. Dazu werden die Ausblasöffnungen am Gehäuseflansch korrespondierend, insbesondere gegenüberliegend und somit auf gleicher Höhe zu den zu kühlenden Türkomponenten angeordnet.Preferably, the at least one exhaust opening is directed to a temperature-critical door component. A temperature-critical component is to be understood in particular as meaning components which do not withstand the temperatures customary in the cooking appliance. These amount to up to approx. 280 degrees Celsius in the cooking chamber during a cooking process or up to approx. 500 degrees Celsius in the case of a pyrolytic self-cleaning process. The door components are about 300 degrees Celsius. In particular, plastic components do not withstand this thermal load and bend, or melt, burn or become brittle. Examples of such components are frame parts of the door, covers, design elements, elements of lights, covers of microwave traps or sealing elements. A particularly good cooling of these temperature-critical components arises when the exhaust openings and thus the air streams are directed to these components. For this purpose, the exhaust openings are arranged on the housing flange corresponding, in particular opposite and thus arranged at the same height to the door components to be cooled.
Vorzugsweise ist die temperaturkritische Türkomponente aus einem Kunststoff, insbesondere einem LCP-Kunststoff gebildet. Solch ein Kunststoff aus flüssigkristallinen Polymeren, auch liquid crystalline polymers (LCP) genannt, weist besonders temperaturstabile Eigenschaften auf und kann in temperaturkritischen Bereichen von bis zu rund 300 Grad Celsius verbaut werden.Preferably, the temperature-critical door component is formed from a plastic, in particular an LCP plastic. Such a plastic made of liquid crystalline polymers, also called liquid crystalline polymers (LCP), has particularly temperature-stable properties and can be installed in temperature-critical areas of up to about 300 degrees Celsius.
Vorzugsweise mündet sowohl der erste Kanal als auch der zweite Kanal im Gehäuseflansch, wobei diese vorzugsweise Übereinader angeordnet sind. Diese Anordnung erzeugt einen besonders einfachen Geräteaufbau, der eine zudem Ansprechende optische Erscheinung bildet. Dabei ist es freigestellt, ob der erste Kanal über dem zweiten Kanal oder umgekehrt angeordnet ist. Gemäß einer Variante ist im/am Gehäuseflansch eine weitere Öffnung für einen dritten Kanal angeordnet. Diese dienen vorzugsweise zur Versorgung des Gebläses mit Frischluft aus der Umgebung des Gargeräts.Preferably, both the first channel and the second channel open in the housing flange, which are preferably arranged übereinander. This arrangement produces a particularly simple device structure, which also forms an appealing visual appearance. It is optional whether the first channel is arranged above the second channel or vice versa. According to a variant, a further opening for a third channel is arranged in / on the housing flange. These are preferably used to supply the blower with fresh air from the environment of the cooking appliance.
Vorzugsweise erzeugt der Volumenstrom des zweiten Kanals eine Luftströmung zwischen Gehäuseflansch und Türboden, wobei dieser die temperaturkritischen Türkomponenten kühlt. Unter einem Türboden soll der Bereich der Türe verstanden werden, welcher dem Geräteflansch gegenüber steht. Dies ist bei einer herkömmlichen Türe der rahmenartige Außenbereich der Innenscheibe. Eine besonders gute Kühlung der temperaurkritischen Komponenten der Türe entsteht, wenn in dem Spalt, der bei einer geschlossenen Garraumtüre zwischen dem Türboden und dem Gehäuseflansch verbleibt, durch die vorzugsweise nach unten gerichtete Luftströmung des zweiten Kanals die Luftströmung fortgesetzt werden kann und somit die überflüssige Wärme abtransportiert wird. Dabei wird die Luft im oberen Bereich der Türe durch die Ausblasöffnungen in diesen Spalt eingeblasen und durch den Spalt in den Seitenbereichen der Türe abwärts bis zum unteren Ende der Türe geleitet, wo der Luftstrom in die Umgebung entweicht.Preferably, the volume flow of the second channel generates an air flow between the housing flange and the door bottom, wherein the latter cools the temperature-critical door components. Under a door bottom, the area of the door should be understood, which is the device flange opposite. This is the frame-like outer region of the inner pane in the case of a conventional door. A particularly good cooling of the temperature-critical components of the door arises when in the gap, which remains in a closed cooking chamber door between the door bottom and the housing flange, through the preferably downward air flow of the second channel, the air flow can be continued and thus transported away the excess heat becomes. The air is blown in the upper part of the door through the exhaust openings in this gap and directed down through the gap in the side areas of the door to the lower end of the door, where the air flow escapes into the environment.
Vorzugsweise ist im Spalt zwischen Gehäuseflansch und Türboden eine Dichtung angeordnet, welche vom oben beschriebenen Luftstrom im Spalt zwischen Gehäuseflansch und Türboden gekühlt wird. Mittels solch einer Dichtung kann die Energieeffizienz des Gargeräts gesteigert werden, da weniger Energie an die Umgebung abgegeben wird. Eine besonders gute Abdichtung entsteht, wenn die Dichtung aus einem silikonhaltigen Material besteht. Durch den Luftstrom und dem damit verbundenen Wärmeabtransport kann solch eine Silikondichtung auch in einem Umfeld hoher Temperaturen eingesetzt werden.Preferably, a seal is arranged in the gap between the housing flange and door bottom, which is cooled by the air flow described above in the gap between the housing flange and the door bottom. By means of such a seal, the energy efficiency of the cooking appliance can be increased because less energy is released to the environment. A particularly good seal is created when the seal is made of a silicone-containing material. Due to the air flow and the associated removal of heat such a silicone gasket can also be used in a high temperature environment.
Weitere Merkmale der Erfindung ergeben sich aus den Ansprüchen, den Figuren und der Figurenbeschreibung. Die vorstehend in der Beschreibung genannten Merkmale und Merkmalskombinationen sowie die nachfolgend in der Figurenbeschreibung genannten und/oder in den Figuren alleine gezeigten Merkmale und Merkmalskombinationen sind nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinaten oder in Alleinstellung verwendbar, ohne den Rahmen der Erfindung zu verlassen. Es sind somit auch Ausführungen von der Erfindung als umfasst und offenbart anzusehen, die in den Figuren nicht explizit gezeigt und erläutert sind. Jedoch durch separierte Merkmalskombinationen aus den erläuterten Ausführungen hervorgehen und erzeugbar sind.Further features of the invention will become apparent from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or in the figures alone can be used not only in the respectively indicated combination but also in other combinations or in isolation, without the scope of To leave invention. There are thus also embodiments of the invention as encompassed and disclosed, which are not explicitly shown and explained in the figures. However, they emerge and can be generated by separated combinations of features from the explained embodiments.
Weitere Vorteile und Einzelheiten der Erfindung werden anhand der, in den schematischen Figuren dargestellten Ausführungsbeispiele näher erläutert. Dabei zeigt:
- Fig. 1
- eine perspektivische Darstellung eines erfindungsgemäßen Gargeräts;
- Fig. 2
- eine Seitenansicht eines Gargeräts entlang des Schnitts A-A;
- Fig. 3
- eine Draufsicht auf ein Gargerät im Bereich der Gehäuselüftung; und
- Fig. 4
- eine Vorderansicht eines Gargeräts bei geöffneter Türe.
- Fig. 1
- a perspective view of a cooking appliance according to the invention;
- Fig. 2
- a side view of a cooking appliance along the section AA;
- Fig. 3
- a plan view of a cooking appliance in the field of housing ventilation; and
- Fig. 4
- a front view of a cooking appliance with the door open.
In den Figuren werden gleiche oder funktionsgleiche Elemente mit den gleichen Bezugszeichen versehen.In the figures, identical or functionally identical elements are provided with the same reference numerals.
In
Für den Fachmann ist erkennbar, dass die Erfindung nicht auf das dargestellte Ausführungsbeispiel beschränkt ist, sondern dass eine Vielzahl von Varianten und Abwandlungen ebenfalls davon umfasst sind.It will be apparent to those skilled in the art that the invention is not limited to the illustrated embodiment, but that a variety of variations and modifications are also included.
- 11
- GargerätCooking appliance
- 22
- Garraumoven
- 33
- SeitenwandSide wall
- 44
- Türedoor
- 55
- GargutträgeraufnahmeGargutträgeraufnahme
- 66
- Gargutträgerfood support
- 77
- Gehäuseflanschhousing flange
- 88th
- erster Kanalfirst channel
- 99
- zweiter Kanalsecond channel
- 1010
- dritter Kanalthird channel
- 1111
- Türkomponentedoor component
- 1212
- Gebläsefan
- 1313
- WrasenklappeFlap valve
- 1414
- Ausblasöffnungexhaust vent
- 1515
- Dichtungpoetry
- 1616
- Türbodendoor Flooring
Claims (14)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014202443.9A DE102014202443A1 (en) | 2014-02-11 | 2014-02-11 | Cooling door components |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2905542A1 true EP2905542A1 (en) | 2015-08-12 |
Family
ID=52394163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15152241.4A Withdrawn EP2905542A1 (en) | 2014-02-11 | 2015-01-23 | Cooling of door components |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2905542A1 (en) |
DE (1) | DE102014202443A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023222387A1 (en) * | 2022-05-16 | 2023-11-23 | Miele & Cie. Kg | Cooking device |
BE1030531B1 (en) * | 2022-05-17 | 2023-12-18 | Miele & Cie | Cooking device, built-in cooking system, household system |
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DE8912878U1 (en) | 1989-10-31 | 1990-01-04 | Bosch-Siemens Hausgeräte GmbH, 8000 München | oven |
GB2262601A (en) * | 1991-12-19 | 1993-06-23 | Stoves Ltd | Cookers |
EP0834701A1 (en) * | 1996-10-05 | 1998-04-08 | Gaggenau Hausgeräte GmbH | Baking oven with internally ventilated door seal |
DE29922260U1 (en) * | 1999-12-18 | 2000-03-09 | Rehau Ag & Co | Sealing system for sealing a baking cell, especially for the door of a pyrolytic cleaning oven |
US20060196495A1 (en) * | 2005-03-02 | 2006-09-07 | Samsung Electronics Co., Ltd. | Oven |
DE102006001248A1 (en) * | 2006-01-10 | 2007-07-12 | BSH Bosch und Siemens Hausgeräte GmbH | User control module for a domestic appliance is integrated in the access door of the appliance, especially an oven,in a cavity created in the door frame |
EP2333425A1 (en) * | 2009-12-09 | 2011-06-15 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance for preparing food with a fan and a lamp for lighting the cooking chamber |
DE102010062579A1 (en) * | 2010-12-08 | 2012-06-14 | BSH Bosch und Siemens Hausgeräte GmbH | Baking oven door for closing loading opening of cooking chamber of baking oven, comprises front side outer disk and cooking chamber facing inner disk, where ventilation device is integrated in baking oven door for cooling component |
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FR2271515A1 (en) * | 1973-10-23 | 1975-12-12 | Cepem | Self-cleaning baking-oven cooled by air-convection - has outlets to control device, and surrounding space |
DE19504673C2 (en) * | 1995-02-13 | 1998-04-30 | Bosch Siemens Hausgeraete | Built-in oven cooling |
DE102006005293A1 (en) * | 2006-02-06 | 2007-08-09 | BSH Bosch und Siemens Hausgeräte GmbH | oven |
-
2014
- 2014-02-11 DE DE102014202443.9A patent/DE102014202443A1/en not_active Ceased
-
2015
- 2015-01-23 EP EP15152241.4A patent/EP2905542A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8912878U1 (en) | 1989-10-31 | 1990-01-04 | Bosch-Siemens Hausgeräte GmbH, 8000 München | oven |
GB2262601A (en) * | 1991-12-19 | 1993-06-23 | Stoves Ltd | Cookers |
EP0834701A1 (en) * | 1996-10-05 | 1998-04-08 | Gaggenau Hausgeräte GmbH | Baking oven with internally ventilated door seal |
DE29922260U1 (en) * | 1999-12-18 | 2000-03-09 | Rehau Ag & Co | Sealing system for sealing a baking cell, especially for the door of a pyrolytic cleaning oven |
US20060196495A1 (en) * | 2005-03-02 | 2006-09-07 | Samsung Electronics Co., Ltd. | Oven |
DE102006001248A1 (en) * | 2006-01-10 | 2007-07-12 | BSH Bosch und Siemens Hausgeräte GmbH | User control module for a domestic appliance is integrated in the access door of the appliance, especially an oven,in a cavity created in the door frame |
EP2333425A1 (en) * | 2009-12-09 | 2011-06-15 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance for preparing food with a fan and a lamp for lighting the cooking chamber |
DE102010062579A1 (en) * | 2010-12-08 | 2012-06-14 | BSH Bosch und Siemens Hausgeräte GmbH | Baking oven door for closing loading opening of cooking chamber of baking oven, comprises front side outer disk and cooking chamber facing inner disk, where ventilation device is integrated in baking oven door for cooling component |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023222387A1 (en) * | 2022-05-16 | 2023-11-23 | Miele & Cie. Kg | Cooking device |
BE1030531B1 (en) * | 2022-05-17 | 2023-12-18 | Miele & Cie | Cooking device, built-in cooking system, household system |
Also Published As
Publication number | Publication date |
---|---|
DE102014202443A1 (en) | 2015-08-13 |
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