EP0831278A1 - Four de cuisson avec un dispositif de nettoyage par pyrolyse - Google Patents

Four de cuisson avec un dispositif de nettoyage par pyrolyse Download PDF

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Publication number
EP0831278A1
EP0831278A1 EP97116007A EP97116007A EP0831278A1 EP 0831278 A1 EP0831278 A1 EP 0831278A1 EP 97116007 A EP97116007 A EP 97116007A EP 97116007 A EP97116007 A EP 97116007A EP 0831278 A1 EP0831278 A1 EP 0831278A1
Authority
EP
European Patent Office
Prior art keywords
pane
frame
door
baking
oven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97116007A
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Böhm
Thomas Dr. Krümpelmann
Ulrich Lehmann
Rudolf Nordemann
Ulrich Dr. Sillmen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP0831278A1 publication Critical patent/EP0831278A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
    • F24C14/02—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning pyrolytic type
    • 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

Definitions

  • the invention relates to an oven with a device for pyrolytic self-cleaning, with a baking muffle, which has a seal on the baking muffle frame, on which a Disc of an appliance door lies and closes the baking muffle, the appliance door consisting of several Panes and at least one frame that holds the panes together to form a unit, consists.
  • the door must be designed differently than in ovens that only work at normal temperatures up to approx. 250 ° C.
  • the device doors also consist of at least three panes held together by a metallic door floor and a frame to form a unit are. To reduce energy losses and lower temperatures This creates an air cushion between the panes that is as thick as possible on the outer pane locked in. So that the appliance door with a multi-pane structure as a whole is not too thick basic frame structures are used here. It is on the Another sheet metal frame is built up in the inner door panel of the straight door area.
  • DE 4407084 discloses a door for an oven with pyrolytic self-cleaning, in condensation on the glass panes of the oven door due to a built-in flow barrier on the perimeter of the viewing window should be avoided. But even with one The metal door frame is partially immersed in the baking muffle and door formation its sheet metal parts extend from the hot baking muffle to the cooler edge area.
  • a major disadvantage of such door structures for ovens with pyrolytic self-cleaning consists in that structurally complex sheet metal structures with mostly enamelled parts and the fasteners for the panes are in the hot area of the baking muffle. warmth This turns the hot area of the oven through the metal parts to the outside of the door conducted, which causes high pane temperatures and energy losses.
  • Their depth must be at least two centimeters shorter than for one Oven with normal temperature operation.
  • the invention thus presents the problem of an appliance door for an oven with a device to create pyrolytic self-cleaning, which lower temperatures at the Has outer pane, prevents thermal bridges in the edge areas and the usable Interior of the baking muffle not reduced.
  • the advantages achievable with the invention consist in particular in that the entire door is arranged in front of the baking muffle and no parts of the appliance door protrude into the baking muffle.
  • the inner pane of this door lies in the area of the baking muffle edge directly against a circumferential seal. This keeps the full size of the cooking space. Because glass is a poor heat conductor, thermal bridges from the baking muffle to the adjacent areas are prevented.
  • the frame, which holds the panes together in one unit, has no direct contact with the hot areas and, in an advantageous embodiment, consists of a poorly heat-conducting stainless steel. When the door is open, a smooth inner pane appears, which is particularly easy to clean.
  • the pane of the appliance door lying against the baking muffle consists of a material with a low coefficient of thermal expansion ( ⁇ 3 ⁇ 10 -6 ), for example of a glass ceramic.
  • This glass ceramic is advantageously chosen to be transparent in order to guarantee the user a familiar insight into the baking muffle during operation. Since it is recommended for thermal reasons not to print this pane as usual, an intermediate frame is placed directly behind this pane, which prevents an insight into the interior of the door.
  • An optically appealing frame preferably consists of a sheet metal part which can be coated with different materials and / or colors. This enables you to meet the customers' different personal wishes.
  • a stainless steel sheet is used as an intermediate sheet, it is advantageous here to coat this sheet as well, but a transparent coating is chosen here in order to maintain the typical appearance of stainless steel.
  • the transparent coating prevents the tarnishing colors of the stainless steel, which would occur at high temperatures in a pyrolytic self-cleaning operation.
  • a further advantageous embodiment has at least one-sided mirroring of the middle pane in order to be able to further reduce the temperatures on the outer pane by reflecting the heat back into the baking muffle.
  • a heat-resistant seal which is arranged in a further advantageous embodiment between the middle and the inner pane, presses the middle pane against the frame holding the panes together and thus prevents an undesired movement of this pane.
  • FIG. 1 shows an arrangement of an appliance door (1) for an oven with a device for pyrolytic self-cleaning.
  • This door (1) consists essentially of three panes (3, 4, 5) arranged one behind the other, which are held together by a metallic frame (6) to form a door unit. Since stainless steel conducts heat poorly, it is advisable to manufacture the frame (6) from stainless steel.
  • further panes can be arranged in order to be able to lower the temperature on the outer pane (5) even further, particularly when carrying out the high-temperature cleaning operation. With such a structure, however, the weight of the entire door (1) increases, which must be taken into account when selecting the hinges arranged in the lower area.
  • the inner pane (3) is preferably made from a material with a low coefficient of thermal expansion ( ⁇ 3 x 10 -6 ), for example from a glass ceramic. This has the advantage that such a disc (3) withstands the different heat distributions. In the middle in front of the hot baking muffle (2), the temperature load is many times higher than in the peripheral areas, where cold air currents often reach the window.
  • the glass ceramic pane (3) is not printed in order not to create additional stresses inside the pane (3) which could result in destruction.
  • a completely transparent glass ceramic disc has the advantage that you can look into the opening of the baking muffle (2) and observe the food being cooked during a cooking process, but it also shows all the parts arranged in the edge areas behind it, which in other doors through the Printing on the panes (3, 5) are covered.
  • an intermediate plate (7) is arranged behind the inner pane.
  • This sheet (7) can either consist of stainless steel or of simple coated sheet material. Due to the different choice of materials and / or coatings, different optical impressions can be offered. When using stainless steel, an elegant exterior is created, which adapts to the current trend in household appliance technology. When choosing stainless steel, however, this intermediate plate (7) should preferably also be coated in order to avoid the tarnishing colors of stainless steel that are otherwise common at high temperatures. Different methods are suitable for coating, for example a sol-gel or water glass coating. However, the applied layer should be transparent in order to maintain and underline the appearance of stainless steel. A scratch or impact resistance is not to be taken into account when coating the intermediate frame (7), since this intermediate frame (7) only serves as a privacy screen behind a completely transparent inner pane (3).
  • the inner pane (3) has larger dimensions than the baking muffle opening and the appliance door (1) is in its entirety in front of the baking muffle (2) and the her circumferentially arranged seal.
  • the inner disc (3) lies directly on this rotating Seal (9). This enables a completely closed baking muffle (2) to be reached the prescribed temperature values in the areas adjacent to the oven not exceeded even at a pyrolytic cleaning operation at temperatures of around 480 ° C will. Because the inner pane (3) is assigned to different temperature ranges is, the pane is thermally very stressed.
  • the intermediate frame (7) is followed by a central disc (4), which is separated from the frame (6.1) is held.
  • a seal that is preferred because of the high heat load If glass fiber should exist, the washer (4) can be fixed on one or both sides it does not vibrate even when the oven is operating. However, this definition can be based on a another type.
  • the outer pane (5) adjoining this middle pane (4) is also held by the metallic frame (6). In total with the others Washers (3, 4), the choice of materials for the washers (3, 4, 5) and the intermediate frame (7) an appliance door (1), which is good for an oven with a pyrolytic Self-cleaning operation is suitable.
EP97116007A 1996-09-19 1997-09-15 Four de cuisson avec un dispositif de nettoyage par pyrolyse Withdrawn EP0831278A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19638241 1996-09-19
DE1996138241 DE19638241A1 (de) 1996-09-19 1996-09-19 Backofen mit einer Einrichtung zur pyrolytischen Selbstreinigung

Publications (1)

Publication Number Publication Date
EP0831278A1 true EP0831278A1 (fr) 1998-03-25

Family

ID=7806133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97116007A Withdrawn EP0831278A1 (fr) 1996-09-19 1997-09-15 Four de cuisson avec un dispositif de nettoyage par pyrolyse

Country Status (2)

Country Link
EP (1) EP0831278A1 (fr)
DE (1) DE19638241A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999024759A2 (fr) * 1997-10-31 1999-05-20 Schott Glas Porte de regard pour appareil a temperature interieure elevee
EP0997689A2 (fr) 1998-10-29 2000-05-03 BSH Bosch und Siemens Hausgeräte GmbH Four de cuisson à panneau intérieur en verre
EP2868982A1 (fr) * 2013-10-31 2015-05-06 Electrolux Appliances Aktiebolag Paquet de vitre et cadre pour porte de four d'un four de cuisson
WO2015062920A1 (fr) * 2013-10-31 2015-05-07 Electrolux Appliances Aktiebolag Assemblage en verre et structure de porte de four d'un four de cuisson
WO2016034293A1 (fr) * 2014-09-05 2016-03-10 Electrolux Appliances Aktiebolag Boîtier en verre et structure de porte de four d'un four de cuisson

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10050609A1 (de) 2000-10-12 2002-04-18 Bsh Bosch Siemens Hausgeraete Gargerätetür
DE10065333A1 (de) * 2000-12-27 2002-07-04 Bsh Bosch Siemens Hausgeraete Gargerätetür
DE10314214B4 (de) 2003-03-28 2021-10-28 BSH Hausgeräte GmbH Ofentür zum Verschließen einer Ofenmuffel eines Backofens
DE102007062979B4 (de) 2007-12-21 2013-03-07 Schott Ag Verfahren zur Herstellung eines Glasgegenstands in Form einer Gargeräte-Innenscheibe, Glasscheibenpaket und Haushalts-Gargerätetür
DE102010029331B4 (de) 2010-05-26 2022-02-24 BSH Hausgeräte GmbH Gargerätetür

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962561A (en) * 1973-07-17 1976-06-08 Compagnie Europeenne Pour L'equipement Menager, Cepem Catalytically assisted pyrolytic self-cleaning oven
FR2653861A1 (fr) * 1989-11-02 1991-05-03 Bosch Siemens Hausgeraete Porte de four.
EP0490774A1 (fr) * 1990-12-14 1992-06-17 Compagnie Europeenne Pour L'equipement Menager "Cepem" Porte pour four de cuisson à usage domestique
US5588421A (en) * 1993-09-29 1996-12-31 Schott Glaswerke Heat-insulating viewing window or viewing door for an apparatus having an interior temperature deviating from the ambient temperature thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1189360A (en) * 1967-11-10 1970-04-22 Simplex Electric Co Ltd Improvements relating to Doors for Ovens
DE2305025A1 (de) * 1973-02-02 1974-08-08 Burger Eisenwerke Ag Verfahren zum selbsttaetigen reinigen der innenwaende eines brat- oder backofens
DE3912483A1 (de) * 1989-04-15 1990-10-18 Steinbach & Vollmann Tuerverschluss

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962561A (en) * 1973-07-17 1976-06-08 Compagnie Europeenne Pour L'equipement Menager, Cepem Catalytically assisted pyrolytic self-cleaning oven
FR2653861A1 (fr) * 1989-11-02 1991-05-03 Bosch Siemens Hausgeraete Porte de four.
EP0490774A1 (fr) * 1990-12-14 1992-06-17 Compagnie Europeenne Pour L'equipement Menager "Cepem" Porte pour four de cuisson à usage domestique
US5588421A (en) * 1993-09-29 1996-12-31 Schott Glaswerke Heat-insulating viewing window or viewing door for an apparatus having an interior temperature deviating from the ambient temperature thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999024759A2 (fr) * 1997-10-31 1999-05-20 Schott Glas Porte de regard pour appareil a temperature interieure elevee
WO1999024759A3 (fr) * 1997-10-31 1999-07-22 Schott Glas Porte de regard pour appareil a temperature interieure elevee
EP0997689A2 (fr) 1998-10-29 2000-05-03 BSH Bosch und Siemens Hausgeräte GmbH Four de cuisson à panneau intérieur en verre
DE19849989A1 (de) * 1998-10-29 2000-05-04 Bsh Bosch Siemens Hausgeraete Backofen mit Vollglasinnenscheibe
EP2868982A1 (fr) * 2013-10-31 2015-05-06 Electrolux Appliances Aktiebolag Paquet de vitre et cadre pour porte de four d'un four de cuisson
WO2015062920A1 (fr) * 2013-10-31 2015-05-07 Electrolux Appliances Aktiebolag Assemblage en verre et structure de porte de four d'un four de cuisson
WO2016034293A1 (fr) * 2014-09-05 2016-03-10 Electrolux Appliances Aktiebolag Boîtier en verre et structure de porte de four d'un four de cuisson
US10520201B2 (en) 2014-09-05 2019-12-31 Electrolux Appliances Aktiebolag Glass package and framework for an oven door of a cooking oven

Also Published As

Publication number Publication date
DE19638241A1 (de) 1998-03-26

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