EP0955502B1 - Door for a baking oven - Google Patents

Door for a baking oven Download PDF

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Publication number
EP0955502B1
EP0955502B1 EP99109091A EP99109091A EP0955502B1 EP 0955502 B1 EP0955502 B1 EP 0955502B1 EP 99109091 A EP99109091 A EP 99109091A EP 99109091 A EP99109091 A EP 99109091A EP 0955502 B1 EP0955502 B1 EP 0955502B1
Authority
EP
European Patent Office
Prior art keywords
baking oven
cover frame
oven door
door according
viewing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99109091A
Other languages
German (de)
French (fr)
Other versions
EP0955502A1 (en
Inventor
Jochen Dipl.-Ing. Herbolsheimer
Udo Dipl.-Ing. Reiff
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0955502A1 publication Critical patent/EP0955502A1/en
Application granted granted Critical
Publication of EP0955502B1 publication Critical patent/EP0955502B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 door with a lid for closing one Oven muffle according to the preamble of claim 1.
  • DE-A-43 04 485 describes an oven door for closing an oven muffle known, which has a disc on the inside of the oven muffle and a door structure framing it and a pane on the outside and has an outer pane covering the door structure.
  • the outer pane is in their area opposite the metallic door construction with a Glossy polished aluminum layer to reflect the metallic door structure heat radiation acting on them.
  • the inner pane is on hers the inside of the oven muffle with an infrared ray reflecting Layer.
  • An oven door should not only close an oven muffle, but also prevent heat from the oven muffle from being lost to the outside goes through radiating heat.
  • a third requirement is that the oven door be on your The outside must not become so warm that a person can burn it can. It should be borne in mind that temperatures in the oven muffle can exceed 500 ° C can prevail, but the outside temperature of the oven or stove is preferably only about 20 ° C.
  • the object of the invention is to achieve good thermal insulation on the Oven door and on its outer surface with a lowering of the surface temperature to achieve a construction that has a lower door weight and one after focus shifted below. At the same time, material costs should be saved and the assembly effort can be reduced.
  • the oven muffle 2 is closed on its loading side with an oven door 4, which around an axis of rotation 6 at the front lower end of the oven muffle 2 can be swiveled downwards.
  • An oven door cover 8 has a cover frame 10 made of metal and therein a viewing opening 12 through a sight glass 14 is closed.
  • the sight glass 14 is on that facing away from the oven muffle 2 Arranged outside of the lid frame 10 and along the viewing opening edges 15 glued to the cover frame 10 by an adhesive ramp 16.
  • the Sight glass pane 14 is on its entire inner side facing the oven muffle 2 with a layer 18 reflecting heat, in particular infrared rays Mistake.
  • the sight glass 14 extends beyond the adhesive ramp 16 at a distance from the cover frame, down over the lower cover frame part 20, which the closes lower area of the oven muffle 2 to the heat radiation this shield the lower cover frame part 20.
  • the sight glass pane 14 has a downwardly projecting section 22, which on its the cover frame 10 facing inside also with a heat reflective, in particular Layer 18 reflecting infrared rays is provided.
  • This lower section 22 of the Sight glass pane 14 limits one between it and the lower one Cover frame part 20 formed intermediate space 24.
  • the upper end of the sight glass 14 extends only up to the adhesive ramp 16.
  • the sight glass 14 also has both Sides of the viewing opening 12 projecting beyond the adhesive ramp 16 26 and 28, which extend over at least part of the metallic side parts 30 and 32 of the lid frame 10, which the oven muffle 2 in both Limit front side areas.
  • These side sections 26 and 28 of the sight glass are also provided with a heat-insulating, provided and have in particular infrared radiation reflecting layer a distance from the side parts 30 and 32 shielded by them, so that an intermediate space 24 is also formed between them.
  • the heat shield member 40 made of metal is attached to the oven lid 8, preferably on one above the Baking muffle 2 location so that no direct thermal bridge can arise.
  • the metallic heat shield member 40 extends in the preferred embodiment also on both sides of the viewing opening 12 over a third to maximum the entire height, preferably approximately the upper half of this viewing opening 12, down over the side parts 30 and 32 of the lid frame 10, for shielding and reflection of these side parts 30 and 32 from the oven muffle 2 radiated heat.
  • the ones extending down Side portions 50 and 52 of the metallic heat shield member 40 extend preferably from the side edge of the viewing opening 12 over at least more than that half the width of the side parts 30 and 32 of the cover frame 10.
  • the oven door 4 is provided on its outside with a glass plate 58, which covers the oven door cover 8 and at least in the area of the viewing opening 12 is transparent.
  • the plate 58 like the sight glass 14, can be made of glass or ceramic or glass ceramic exist. Between them can be additional heat protection agents be provided.
  • the oven muffle 2 can be heated by electric heating elements or with gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Electric Stoves And Ranges (AREA)

Description

Die Erfindung betrifft eine Backofentür mit einem Deckel zum Verschließen einer Backofenmuffel gemäß dem Oberbegriff von Anspruch 1.The invention relates to an oven door with a lid for closing one Oven muffle according to the preamble of claim 1.

Aus der DE-A-43 04 485 ist eine Backofentür zum Verschließen einer Backofenmuffel bekannt, welche auf ihrer der Backofenmuffel zugewandten Innenseite eine Scheibe und eine sie umrahmende Türkonstruktion und auf ihrer Außenseite eine die Scheibe und die Türkonstruktion überdeckende Außenscheibe aufweist. Die Außenscheibe ist in ihrem der metallischen Türkonstruktion gegenüberliegenden Bereich mit einer glanzpolierten Aluminiumschicht zur Reflektierung der von der metallischen Türkonstruktion auf sie wirkenden Wärmestrahlung versehen. Die innere Scheibe ist auf ihrer der Backofenmuffel zugewandten Innenseite mit einer Infrarotstrahlen reflektierenden Schicht versehen. Eine Backofentür soll nicht nur eine Backofenmuffel verschließen, sondern auch verhindern, daß Wärme aus der Backofenmuffel nach außen verloren geht durch abstrahlende Wärme. Eine dritte Forderung ist, daß die Backofentür auf ihrer Außenseite nicht so warm werden darf, daß sich eine Person an ihr verbrennen kann. Dabei ist zu berücksichtigen, daß in der Backofenmuffel Temperaturen bis über 500°C herrschen können, die Außentemperatur des Backofens oder Herdes jedoch vorzugsweise nur ungefähr 20°C beträgt.DE-A-43 04 485 describes an oven door for closing an oven muffle known, which has a disc on the inside of the oven muffle and a door structure framing it and a pane on the outside and has an outer pane covering the door structure. The outer pane is in their area opposite the metallic door construction with a Glossy polished aluminum layer to reflect the metallic door structure heat radiation acting on them. The inner pane is on hers the inside of the oven muffle with an infrared ray reflecting Layer. An oven door should not only close an oven muffle, but also prevent heat from the oven muffle from being lost to the outside goes through radiating heat. A third requirement is that the oven door be on your The outside must not become so warm that a person can burn it can. It should be borne in mind that temperatures in the oven muffle can exceed 500 ° C can prevail, but the outside temperature of the oven or stove is preferably only about 20 ° C.

Durch die Erfindung soll die Aufgabe gelöst werden, eine gute Wärmeisolation an der Backofentür und auf ihrer Außenfläche eine Senkung der Oberflächentemperatur mit einer Konstruktion zu erreichen, welche ein geringeres Türgewicht und einen nach unten verlagerten Schwerpunkt hat. Gleichzeitig sollen Materialkosten eingespart und der Montageaufwand reduziert werden.The object of the invention is to achieve good thermal insulation on the Oven door and on its outer surface with a lowering of the surface temperature to achieve a construction that has a lower door weight and one after focus shifted below. At the same time, material costs should be saved and the assembly effort can be reduced.

Diese Aufgabe wird gemäß der Erfindung durch die kennzeichnenden Merkmale von Anspruch 1 gelöst.This object is achieved according to the invention by the characterizing features of Claim 1 solved.

Durch die Erfindung werden folgende Vorteile erzielt:
Eine gute Abschirmung an einem Backofentürdeckel gegen Wärmeabstrahlung, insbesondere gegen Infrarotstrahlung; eine Schwerpunktverlagerung nach unten und dadurch einen geringeren Verschleiß der Türscharniere und eine leichtere und sicherere Bedienbarkeit der Backofentür; eine Einsparung von Metallteilen zur Wärmeabschirmung und dadurch eine Materialeinsparung und ein geringeres Türgewicht; Geringerer Montageaufwand.The following advantages are achieved by the invention:
Good shielding on an oven door cover against heat radiation, especially against infrared radiation; a shift of the center of gravity downwards and therefore less wear of the door hinges and easier and safer usability of the oven door; a saving of metal parts for heat shielding and thereby a material saving and a lower door weight; Less installation work.

Die Erfindung wird im folgenden mit Bezug auf die Zeichnungen anhand einer bevorzugten Ausführungsform als Beispiel beschrieben. In den Zeichnungen zeigen

Fig. 1
einen vertikalen Schnitt durch eine Backofenmuffel eines Elektroherdes oder Gasherdes mit einem Backofentürdeckel nach der Erfindung, und
Fig. 2
eine Vorderansicht des Backofentürdeckels von Fig.1 in der Ebene II-II von Fig.1 gesehen.
The invention is described below with reference to the drawings using a preferred embodiment as an example. Show in the drawings
Fig. 1
a vertical section through an oven muffle of an electric stove or gas stove with an oven door cover according to the invention, and
Fig. 2
seen a front view of the oven door cover of Figure 1 in the plane II-II of Figure 1.

Die Backofenmuffel 2 ist auf ihrer Beschickungsseite mit einer Backofentür 4 abgeschlossen, welche um eine Drehachse 6 am vorderen unteren Ende der Backofenmuffel 2 nach unten aufschwenkbar ist. Ein Backofentürdeckel 8 hat einen Deckelrahmen 10 aus Metall und darin eine Schauöffnung 12, die durch eine Schauglasscheibe 14 verschlossen ist. Die Schauglasscheibe 14 ist auf der von der Backofenmuffel 2 abgewandten Außenseite des Deckelrahmens 10 angeordnet und entlang der Schauöffnungsränder 15 durch eine Kleberampe 16 am Deckelrahmen 10 angeklebt. Die Schauglasscheibe 14 ist auf ihrer gesamten, der Backofenmuffel 2 zugewandten Innenseite mit einer Wärme, insbesondere Infrarotstrahlen, reflektierenden Schicht 18 versehen. The oven muffle 2 is closed on its loading side with an oven door 4, which around an axis of rotation 6 at the front lower end of the oven muffle 2 can be swiveled downwards. An oven door cover 8 has a cover frame 10 made of metal and therein a viewing opening 12 through a sight glass 14 is closed. The sight glass 14 is on that facing away from the oven muffle 2 Arranged outside of the lid frame 10 and along the viewing opening edges 15 glued to the cover frame 10 by an adhesive ramp 16. The Sight glass pane 14 is on its entire inner side facing the oven muffle 2 with a layer 18 reflecting heat, in particular infrared rays Mistake.

Die Schauglasscheibe 14 erstreckt sich über die Kleberampe 16 hinaus, mit Abstand vom Deckelrahmen, nach unten über den unteren Deckelrahmenteil 20, welcher den unteren Bereich der Backofenmuffel 2 verschließt, um die Wärmeabstrahlung dieses unteren Deckelrahmenteils 20 abzuschirmen. Dadurch hat die Schauglasscheibe 14 einen nach unten überstehenden Abschnitt 22, welcher auf ihrer dem Deckelrahmen 10 zugewandten Innenseite ebenfalls mit einer wärmereflektierenden, insbesondere Infrarotstrahlen reflektierenden Schicht 18 versehen ist. Dieser untere Abschnitt 22 der Schauglasscheibe 14 begrenzt nach außen einen zwischen ihr und dem unteren Deckelrahmenteil 20 gebildeten Zwischenraum 24.The sight glass 14 extends beyond the adhesive ramp 16 at a distance from the cover frame, down over the lower cover frame part 20, which the closes lower area of the oven muffle 2 to the heat radiation this shield the lower cover frame part 20. As a result, the sight glass pane 14 has a downwardly projecting section 22, which on its the cover frame 10 facing inside also with a heat reflective, in particular Layer 18 reflecting infrared rays is provided. This lower section 22 of the Sight glass pane 14 limits one between it and the lower one Cover frame part 20 formed intermediate space 24.

Das obere Ende der Schauglasscheibe 14 erstreckt sich nur bis auf die Kleberampe 16.The upper end of the sight glass 14 extends only up to the adhesive ramp 16.

Bei der bevorzugten Ausführungsform hat die Schauglasscheibe 14 auch auf beiden Seiten der Schauöffnung 12 über die Kleberampe 16 hinausragende Seitenabschnitte 26 und 28, welche sich mindestens über einen Teil der metallischen Seitenteile 30 und 32 des Deckelrahmens 10 erstrecken, welche die Backofenmuffel 2 in ihren beiden Seitenbereichen vorne begrenzen.In the preferred embodiment, the sight glass 14 also has both Sides of the viewing opening 12 projecting beyond the adhesive ramp 16 26 and 28, which extend over at least part of the metallic side parts 30 and 32 of the lid frame 10, which the oven muffle 2 in both Limit front side areas.

Auch diese Seitenabschnitte 26 und 28 der Schauglasscheibe sind mit einer wärmeisolierenden, insbesondere Infrarotstrahlen reflektierenden Schicht versehen und haben einen Abstand zu den von ihnen abgeschirmten Seitenteilen 30 und 32, so daß auch zwischen ihnen ein Zwischenraum 24 gebildet ist.These side sections 26 and 28 of the sight glass are also provided with a heat-insulating, provided and have in particular infrared radiation reflecting layer a distance from the side parts 30 and 32 shielded by them, so that an intermediate space 24 is also formed between them.

Mit Abstand 34 von der Außenseite des oberen, oberhalb der Schauöffnung 12 gelegenen Deckelrahmenteils 36, welcher den oberen Bereich der Backofenmuffel 2 begrenzt, ist ein Wärmeabstrahlelement 40 aus Metall, vorzugsweise Aluminium, angeordnet. Es ist auf seiner dem oberen Deckelrahmenteil 36 zugewandten Innenseite 42 wärmereflektierend, vorzugsweise hochglanzpoliert. Das Wärmeabschirmelement 40 aus Metall ist am Backofendeckel 8 befestigt, vorzugsweise an einer oberhalb der Backmuffel 2 gelegenen Stelle, damit keine direkte Wärmebrücke entstehen kann.At a distance 34 from the outside of the upper one, above the viewing opening 12 Cover frame part 36, which delimits the upper region of the oven muffle 2, a heat radiation element 40 made of metal, preferably aluminum, is arranged. It is on its inner side 42 facing the upper cover frame part 36 heat reflective, preferably highly polished. The heat shield member 40 made of metal is attached to the oven lid 8, preferably on one above the Baking muffle 2 location so that no direct thermal bridge can arise.

Das metallische Wärmeabschirmelement 40 erstreckt sich bei der bevorzugten Ausführungsform auch auf beiden Seiten von der Schauöffnung 12 über ein Drittel bis maximal die ganze Höhe, vorzugsweise ungefähr die obere Hälfte dieser Schauöffnung 12, nach unten über die Seitenteile 30 und 32 des Deckelrahmens 10, zur Abschirmung und Reflektierung der von diesen Seitenteilen 30 und 32 aus der Backofenmuffel 2 abgestrahlten Wärme. Die sich nach unten erstreckenden Seitenabschnitte 50 und 52 des metallischen Wärmeabschirmelements 40 erstrecken sich vorzugsweise vom Seitenrand der Schauöffnung 12 über mindestens mehr als die halbe Breite der Seitenteile 30 und 32 des Deckelrahmens 10.The metallic heat shield member 40 extends in the preferred embodiment also on both sides of the viewing opening 12 over a third to maximum the entire height, preferably approximately the upper half of this viewing opening 12, down over the side parts 30 and 32 of the lid frame 10, for shielding and reflection of these side parts 30 and 32 from the oven muffle 2 radiated heat. The ones extending down Side portions 50 and 52 of the metallic heat shield member 40 extend preferably from the side edge of the viewing opening 12 over at least more than that half the width of the side parts 30 and 32 of the cover frame 10.

Am unteren Ende des Deckelrahmens 10 sind Öffnungen 54 und 56 für Scharniere gebildet, welche die Backofentür mit der Backofenmuffel 2 schwenkbar verbinden und die Drehachse 6 bilden.At the lower end of the lid frame 10 are openings 54 and 56 for hinges formed which pivotally connect the oven door with the oven muffle 2 and form the axis of rotation 6.

Die Backofentür 4 ist auf ihrer Außenseite mit einer Glasplatte 58 versehen, welche den Backofentürdeckel 8 überdeckt und mindestens im Bereich der Schauöffnung 12 durchsichtig ist. Die Platte 58 kann ebenso wie die Schauglasscheibe 14 aus Glas, Keramik oder Glaskeramik bestehen. Zwischen ihnen können weitere Wärmeschutzmittel vorgesehen sein.The oven door 4 is provided on its outside with a glass plate 58, which covers the oven door cover 8 and at least in the area of the viewing opening 12 is transparent. The plate 58, like the sight glass 14, can be made of glass or ceramic or glass ceramic exist. Between them can be additional heat protection agents be provided.

Die Backofenmuffel 2 kann durch elektrische Heizelemente oder mit Gas beheizt werden.The oven muffle 2 can be heated by electric heating elements or with gas.

Claims (6)

  1. Baking oven door with a cover (8) for closing a baking oven chamber (2), which comprises a cover frame (10) of metal and a viewing opening (12) therein, which is closed by a viewing glass pane (14), which is fastened to the metallic cover frame (10), characterised in that the viewing glass pane (14) is firmly adhered to the outer side of the metallic cover frame (10) by adhesive platforms (16), which hold it at a spacing from the cover frame (10), and extends beyond the adhesive platforms (16) downwardly over the lower frame part, at a spacing therefrom, which is associated with. the lower region of the baking oven chamber (2), in order to screen heat radiation from the lower cover frame part (20), and that a heat screening element (40) of metal is arranged, instead of the viewing glass pane (14), at a spacing (34) from the side, which is remote from the baking oven chamber (12), of the upper cover frame part (36) which is placed above the viewing opening (12) and which is associated with an upper region of the baking oven chamber (2).
  2. Baking oven door according to claim 1, characterised in that the viewing glass pane (14) also extends at both sides of the viewing opening (12) over the adhesive platforms (16) at least over a part of the metallic cover frame side parts (30, 32), which are associated with the baking oven chamber (2).
  3. Baking oven door according to claim 1 or 2, characterised in that the upper heat screening element (40) of metal is fastened to the cover frame (10).
  4. Baking oven door according to one of claims 1 to 3, characterised in that the upper heat screening element (40) consists of sheet aluminium.
  5. Baking oven door according to one of the preceding claims, characterised in that the upper heat screening element (40) has a strongly heat reflective surface on its inner side facing the metallic cover frame (10).
  6. Baking oven door according to one of the preceding claims, characterised in that the metallic heat screening element (40) has on both sides of the viewing opening (12) lateral portions (50, 52) which extend downwardly and at a spacing over side parts (30, 32) of the metallic cover frame (10).
EP99109091A 1998-05-07 1999-05-07 Door for a baking oven Expired - Lifetime EP0955502B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19820443 1998-05-07
DE19820443A DE19820443A1 (en) 1998-05-07 1998-05-07 Oven door

Publications (2)

Publication Number Publication Date
EP0955502A1 EP0955502A1 (en) 1999-11-10
EP0955502B1 true EP0955502B1 (en) 2001-11-14

Family

ID=7866985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109091A Expired - Lifetime EP0955502B1 (en) 1998-05-07 1999-05-07 Door for a baking oven

Country Status (3)

Country Link
EP (1) EP0955502B1 (en)
DE (2) DE19820443A1 (en)
ES (1) ES2169577T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006042175A1 (en) * 2006-09-08 2008-03-27 BSH Bosch und Siemens Hausgeräte GmbH Oven door e.g. for oven, has plate and arranged before closely adjacent front disc and open upward flow channel and limited heat part is provided in disk level well made from conductive material such as aluminum
GB2504920B (en) * 2012-05-18 2016-08-10 Nu-Flame Ltd A gas fire and a door therefor
ES2683959B1 (en) * 2017-03-28 2019-09-16 Bsh Electrodomesticos Espana Sa Component of household appliance, in particular door or control panel, and procedure for manufacturing it

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8905798U1 (en) * 1989-05-09 1989-06-29 Bosch-Siemens Hausgeräte GmbH, 8000 München Oven door for a household appliance, in particular oven inner door with a safety glass viewing window
DE4304485A1 (en) * 1993-02-15 1994-08-18 Bosch Siemens Hausgeraete Baking-oven door for closing a baking-oven muffle

Also Published As

Publication number Publication date
EP0955502A1 (en) 1999-11-10
DE59900414D1 (en) 2001-12-20
DE19820443A1 (en) 1999-11-11
ES2169577T3 (en) 2002-07-01

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