EP0947776B1 - Four à dispositif de refroidissement - Google Patents

Four à dispositif de refroidissement Download PDF

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Publication number
EP0947776B1
EP0947776B1 EP99106660A EP99106660A EP0947776B1 EP 0947776 B1 EP0947776 B1 EP 0947776B1 EP 99106660 A EP99106660 A EP 99106660A EP 99106660 A EP99106660 A EP 99106660A EP 0947776 B1 EP0947776 B1 EP 0947776B1
Authority
EP
European Patent Office
Prior art keywords
door
air
handle
oven
muffle
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
EP99106660A
Other languages
German (de)
English (en)
Other versions
EP0947776A3 (fr
EP0947776A2 (fr
Inventor
Dietmar Hildner
Harald Pörner
Rolf Stahlmann
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.)
AEG Hausgeraete GmbH
Original Assignee
AEG 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 AEG Hausgeraete GmbH filed Critical AEG Hausgeraete GmbH
Publication of EP0947776A2 publication Critical patent/EP0947776A2/fr
Publication of EP0947776A3 publication Critical patent/EP0947776A3/fr
Application granted granted Critical
Publication of EP0947776B1 publication Critical patent/EP0947776B1/fr
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
    • F24C15/024—Handles
    • 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

Definitions

  • the invention relates to a oven for Cooling the outside environment of an oven muffle.
  • pyrolytic Self-cleaning pyrolysis of the oven muffle known which heats the interior of the muffle to temperatures of up to 500 ° C and the cooking residues in easily removable Ashes are converted. Because of the high temperatures special measures are required for pyrolytic self-cleaning be taken to the muffle door at the front and especially the door handle even during pyrolysis below a critical temperature for humans to keep.
  • an oven muffle door usually an inner pane facing the muffle and an outer pane applied by the muffle on.
  • an additional washer used for thermal insulation, and the Oven muffle outside environment is forced convection a cooling fan cooled.
  • an oven is known with one of the oven muffle and a door for closing the oven muffle, the front window and an inner window, which are connected to one another via a door housing, and a handle strip for opening and closing above the front window and the door housing (Handle) the door by hand.
  • the handle extends across the entire width of the door and has a horizontal flow diaphragm and an adjoining roof-shaped extension in the front area for manual intervention. This approach is the real handle.
  • a cooling fan is now arranged above the furnace muffle, which sucks in cooling air from a muffle environment and blows out to the front through a blow-out duct formed between the handle and the door housing and the upper edge of the front pane.
  • the handle itself is used to direct the air flow.
  • a user grips the handle with his hand to open the door his hand is always in the cooling air flow mixed with the vapor. This can be perceived as uncomfortable, especially because of the soiling of the hand by the vapor and also because of the relatively warm air flow itself.
  • the oven door for closing the oven muffle has a handle strip which closes the oven door upwards and extends over the entire door width and projects forward like a roof.
  • the handle bar is designed as an injection molded part and has a breakthrough in a central area, in front of which a bow-shaped or a shell-shaped handle for handling the door is formed.
  • the handle bar is in the form of a roof which is initially horizontally drawn towards the front and then closed at the front end and closed and each has an air flow opening.
  • outlet openings extending over the entire width of the stove housing are arranged behind the handle strip for blowing out cooling air and vapors heated above the furnace muffle.
  • a hump is provided as a flow deflector on the handle bar, and behind the handle in the rear area of the handle bar angled flow deflector ribs are provided.
  • the hump directs a substantial part of the cooling air and vapors emerging from the outlet openings arranged in the middle area in the hearth housing upwards and above the handle. This air flow above the handle also draws air from below through the opening in the handle bar to cool the handle.
  • the flow deflection ribs direct the rest of the cooling air and vapors emerging in the central area directly to the air flow openings in the lateral areas of the handle bar and prevent heated cooling air and vapors from escaping below the handle.
  • a fairly elaborate handle strip is required to split the average air flow into the three partial flows.
  • a domestic cooking oven is known from US Pat. No. 4,601,279 the cooling air below a door and / or between one Control panel and a channel opening above the door and is blown out through this channel.
  • the invention is based on the object, a oven door, that can be cooled efficiently, for cooling the outside environment of a muffle in a cooking oven and indicate its oven door.
  • the air outlet openings can be arranged.
  • the air outlet openings extend preferably over a large part of the width the front, in particular at least 70% and preferably at least 80% of the front width to achieve a high volume flow the cooling air if the altitude is not too great to enable a viewing window.
  • the door handle too can spread across such a width of the front in horizontal Extend direction.
  • the oven door has an at least partially optically transparent outer pane.
  • the at least one The air outlet opening is then preferably in a cutout the outer pane is formed, and the door handle is due to areas protruding upwards from the cutout the outer pane.
  • the door handle is in an advantageous embodiment formed as a bow handle and then preferably at least predominantly made of metal, especially stainless steel.
  • the door handle is either as a separate part on one, preferably one Plastic existing and / or horizontal, Handle rack attached or with the handle rack formed in one part.
  • the oven door is generally used to close the loading opening an oven muffle of a cooking oven is provided, food can be cooked in the muffle interior and preferably also pyrolytic self-cleaning (burning of residues on the inner wall of the muffle at temperatures of at least 500 ° C) can be carried out.
  • the oven also includes a cooling device, the cooling air sucked in from the outside to at least a part the muffle leads and through the air duct area of the Blows out the oven door back into the outside space.
  • FIG. 1 and 2 show an embodiment of a muffle door (Oven door) 9, which is used to lock one in the 2 and 3 not shown loading opening of a furnace muffle is determined.
  • the door 9 includes a practically over their entire front extending rectangular outer pane 3 and one on one in the upper area of door 9 arranged handle bar 6 attached door handle 5.
  • the door handle 5 is bow-shaped (bow handle) and is preferably made of a metal such as stainless steel.
  • the outer pane 3 has a central viewing window. 30 on and is around the viewing window 30, for example Printing opaque.
  • the outer pane 3 has one for example, a rectangular cutout in which a as a ventilation grille with several air outlet openings 63 and webs 61 formed therebetween 62 of a handle support bar 6 protrudes.
  • the air outlet area 62 of the handle support bar 6 has a receiving groove 67 in which the outer pane 3 on her upper edge is included.
  • an air baffle 64 is provided which is essentially one horizontally impinging flow of through an inlet opening 68 cooling air entered on the handle support strip 6 K 'deflects obliquely downwards in a deflection direction.
  • the door interior 91 of the door 9 from the cooling air K ' shielding air deflector 65 and the webs 61 are in this Direction of deflection directed so that the cooling air K ' the air outlet openings 63 at an angle emerges below the door handle 5 and thus does not hit the door handle 5.
  • This angle becomes dependent on the relative arrangement of the air outlet openings 63 selected for the door handle 5 and can the smaller against the horizontal (normal direction to Front), the further down the air outlet openings 63 are offset against the door handle 5.
  • the exit angle becomes horizontal between 0 ° (at least 2 cm lower than the door handle 5 arranged air outlet openings 63) and 80 °, preferably between 20 ° and 45 °.
  • the air inlet opening 68, the flow guide 64 and 65, the Grid slats 61 and the air outlet openings 63 and the channel formed between them form an air duct area 66.
  • the large air duct area 66 which covers at least the 0.7, preferably extends at least 0.8 times the front width of the door 9, become the front of door 9 in the upper area cooled over a large area and the outer pane 3 in between hotter viewing window area 30 and the door handle 5 lying Area cooled so that the temperatures at Door handle 5 are thereby lowered.
  • the door handle 5 has 52 at its angled ends and 53 each have a cylindrical extension through which the lateral regions 32 projecting upward from the cutout and 33 of the outer pane 3 passed through corresponding holes and is screwed to the rear of the handle support bar 6 are.
  • the handle support bar 6 also serves as a support or Carrier for the upper regions 32 and 33 of the outer pane 3 and is slightly longer than the width of the outer pane Third
  • the door 9 also has an inner pane 2 on the rear side facing the loading opening the door 9 and one in the door interior 91 between the Inner disc 2 and the outer disc 3 arranged washer 4 on.
  • the inner pane 2, washer 4 and Outer pane 3 are preferably parallel to each other and spaced from each other. This means that between the inner pane 2 and the washer 4 an inner Gap 24 and between the outer pane 3 and the An intermediate space 34 is formed between the intermediate disk 4.
  • the inner pane 2 can have better thermal insulation of the door 9 and / or the intermediate disc 4 with a heat radiation reflecting Layer, for example coated with a metal oxide be to the heat radiation in the muffle interior 19 to reflect back.
  • the inner pane 2, washer 4 and the outer pane 3 generally consist of one clear glass or a glass ceramic, the Inner pane 2 is generally smaller than the outer pane 3 is formed.
  • the cooling air flow K 'can additionally Draw air out of the door interior 91 through the action of an injector.
  • FIG 3 is a complete oven (stove), in particular a household oven, shown schematically with an oven muffle 10, a door 9 for closing a loading opening 16 of the furnace muffle 10 and a housing 83.
  • a cooling fan (cooling device) 23 arranged above the furnace muffle 10 .
  • the door 9 is constructed differently in FIG the door according to FIGS. 1 and 2.
  • the cooking oven according to FIG. 3 can but also equipped with a door according to FIGS 1 and 2 become.
  • the door 9 now points in accordance with 3 shows a door handle 5 ', which is preferably on a made of a plastic, in particular a polymer plastic, formed handle support bar 6 'attached or is molded.
  • a suction area 36 educated.
  • Cooling air K is sucked in from the outside space 50.
  • the suctioned cooling air K is through the between the housing 83 and the bottom 13 of the furnace muffle 10 formed Interspace 73 and then by the between the Muffle rear wall 14 and the rear wall of the housing 83 formed space 74 led upwards and through that Cooling fan 23 in a between air baffles 82 or the muffled ceiling 17 formed air duct 75 passed.
  • Cooling air K through a formed in the handle support bar 6 '
  • Air duct 69 which is down from an air deflector 68 and is limited by an air baffle 67 ,. directed to an air outlet opening (blow-out area) 63 and there as warmed cooling air K 'back into the outside space 50 blown out.
  • the air guide 67 and the air deflector 68 are preferred also integrally formed on the handle support bar 6 '. It are now the air outlet opening 63 and the air guide 67 arranged and designed so that the cooling air K 'below the door handle 5 'flows out, so practical does not flow onto the door handle 5 '. This will the door handle 5 'is not comparatively hot Cooling air K 'warms up and remains sufficiently cool.
  • the cooling air K is guided around the entire furnace muffle 10 and thus ensures large cooling of the oven.
  • a muffle wall 14 is generally not shown Muffle insulation laid, along which the cooling air K flows.
  • a not shown Connection should be provided via the vapors from the Muffle interior 15 discharged into the air duct 75 and together with the cooling air from the blow-out area 37 is blown out.
  • the vaping can also on another Point and not the cooling air K are supplied, for example in a built-in stove the associated built-in hob.
  • the air deflector 68 fluidically separates the air duct 69 and the air outlet opening 63 from the door interior 91.
  • This air baffle 90 can in particular be an air baffle be tight against the inner pane 2. Between the air baffle 90 and the washer 4 a connection area 38 is formed over which the inner Gap 24 and the outer gap 34 of the door 9 are in flow communication so that forced convection through the door interior 91 for cooling the door 9.
  • the door 9 can be hinged, in particular about a horizontal, pivotable axis Folding door or also an axial, in particular horizontal, sliding door (baking cart).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Claims (10)

  1. Porte de four de cuisson (9) pour fermer l'ouverture d'introduction (16) d'un moufle de four (10) d'un four de cuisson avec
    a) un côté frontal éloigné du moufle de four, un côté arrière orienté vers le moufle de four et un côté supérieur,
    b) une poignée de porte (5) au côté frontal, de préférence dans sa zone supérieure, caractérisée par
    c) une zone de guidage d'air de la porte du four de cuisson, qui présente au côté arrière et/ou au côté supérieur au moins une ouverture d'entrée d'air, au côté frontal, de préférence dans sa zone supérieure, débouche dans au moins une ouverture de sortie d'air dans un espace extérieur et est réalisée de telle sorte que de l'air introduit à au moins une ouverture d'entrée d'air de celle-ci est guidée en dessous de la poignée de porte (5), en passant devant la poignée de porte (5) dans l'espace extérieur, où
    d) il est prévu dans une baguette de support de poignée (6) un corps de guidage d'air (64) qui dévie un courant incident sensiblement horizontalement en biais vers le bas dans une direction de déviation, dans laquelle est également orienté un déflecteur d'air (65) protégeant l'espace intérieur de la porte (91) contre l'air de refroidissement (K'), et/ou
    e) chaque ouverture de sortie d'air est disposée selon un décalage vers le bas à la poignée de porte.
  2. Porte de four de cuisson selon la revendication 1, où au moins une ouverture de sortie d'air de la zone de guidage d'air est disposée au moins partiellement derrière la poignée de porte à la même hauteur, et où la zone de sortie d'air est réalisée de façon que l'air soit guidé au moins de cette ouverture de sortie d'air en biais vers le bas en passant devant la poignée de porte.
  3. Porte de four de cuisson selon l'une des revendications précédentes, où plusieurs ouvertures de sortie d'air (63) sont disposées dans une grille d'aération.
  4. Porte de four de cuisson selon l'une des revendications précédentes, avec une vitre extérieure au moins partiellement optiquement transparente (3) au côté frontal.
  5. Porte de four de cuisson selon la revendication 4, où la vitre extérieure présente une découpure (31) dans laquelle est disposée au moins une ouverture de sortie d'air précitée (62), et la poignée de porte (5) est guidée par des zones (32), (33) de la vitre extérieure (3) faisant saillie vers le haut, latéralement de la découpure (31).
  6. Porte de four de cuisson selon au moins l'une des revendications précédentes, où au moins une ouverture de sortie d'air précitée (62) et/ou la poignée de porte s'étend sur au moins 70%, de préférence au moins 80% de la largeur du côté frontal.
  7. Porte de four de cuisson selon au moins l'une des revendications précédentes, où la poignée de porte (5) est réalisée en forme d'étrier et est constituée au moins principalement de métal, notamment d'acier fin.
  8. Porte de four de cuisson selon l'une des revendications précédentes, où la poignée de porte (5) est fixée à une baguette du support de poignée (6) réalisée de préférence en un matériau synthétique, ou est reliée en une pièce à la baguette de support de poignée.
  9. Four de cuisson avec
    a) un moufle de four (10) pour chauffer des aliments à cuire pouvant être introduits à travers une ouverture d'introduction (16) dans un espace intérieur de moufle (15),
    b) une porte (9) selon l'une des revendications précédentes pour fermer l'ouverture d'introduction (16) du moufle de four (10) et
    c) une installation de refroidissement qui aspire l'air de refroidissement d'un espace extérieur, qui le guide autour d'au moins une partie du moufle de four et qui l'expulse à travers la zone de guidage d'air de la porte de four de cuisson de nouveau dans l'espace extérieur.
  10. Four de cuisson selon la revendication 10, avec une fonction d'auto-nettoyage par pyrolyse.
EP99106660A 1998-04-01 1999-04-01 Four à dispositif de refroidissement Expired - Lifetime EP0947776B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19814526 1998-04-01
DE19814526 1998-04-01

Publications (3)

Publication Number Publication Date
EP0947776A2 EP0947776A2 (fr) 1999-10-06
EP0947776A3 EP0947776A3 (fr) 2001-02-07
EP0947776B1 true EP0947776B1 (fr) 2004-06-23

Family

ID=7863192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99106660A Expired - Lifetime EP0947776B1 (fr) 1998-04-01 1999-04-01 Four à dispositif de refroidissement

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EP (1) EP0947776B1 (fr)
DE (1) DE59909779D1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10307086A1 (de) 2003-02-19 2004-09-09 Electrolux Home Products Corporation N.V. Garofen
DE102004052045A1 (de) * 2004-10-26 2006-04-27 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerätetürvorrichtung
FR2906874B1 (fr) * 2006-10-05 2009-01-23 Brandt Ind Sas Four de cuisson comprenant au moins un moyen de striction d'une section de passage d'un flux d'air.
FR2906872B1 (fr) * 2006-10-05 2015-05-08 Brandt Ind Four de cuisson comprenant un dispositif de deflexion d'air.
FR2906875B1 (fr) * 2006-10-05 2008-12-05 Brandt Ind Sas Four de cuisson comprenant un canal de refroidissement d'une poignee de porte.
FR2906873B1 (fr) * 2006-10-05 2009-11-20 Brandt Ind Four de cuisson ayant une hauteur de section de passage d'un flux d'air constante.
PL2108892T3 (pl) 2008-04-10 2015-12-31 Whirlpool Co Wbudowany piekarnik
DE102010001586A1 (de) * 2010-02-04 2011-08-04 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Hausgerätvorrichtung
DE102010038806A1 (de) * 2010-08-03 2012-02-09 BSH Bosch und Siemens Hausgeräte GmbH Backofen
DE102014216548A1 (de) * 2014-03-19 2015-09-24 BSH Hausgeräte GmbH Tür für ein Haushaltsgerät und eine als Hybrid-Bauteil ausgebildete Abdeckung für zumindest eine Türscheibe sowie Haushaltsgerät mit einer derartigen Tür
KR102219929B1 (ko) 2014-08-01 2021-02-25 삼성전자주식회사 오븐 및 이에 적용되는 도어 어셈블리
US9784457B2 (en) 2014-08-01 2017-10-10 Samsung Electronics Co., Ltd. Oven, door assembly applied to the same, and method for controlling the oven

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4601279A (en) * 1984-07-10 1986-07-22 Societe De Dietrich Pyrolytic self-cleaning domestic oven with improved means for protecting electronic panel and controls from heat damages
IT1187285B (it) * 1985-07-15 1987-12-23 Zanussi Elettrodomestici Porta per forno,in particolare di tipo ventilato
DE3804759A1 (de) * 1988-02-16 1989-08-24 Licentia Gmbh Back- und bratofentuer
DE4116999A1 (de) 1991-02-19 1992-08-20 Bosch Siemens Hausgeraete Backofentuer mit griffleiste
DE19524369A1 (de) * 1995-07-04 1997-01-09 Bosch Siemens Hausgeraete Backofen

Also Published As

Publication number Publication date
EP0947776A3 (fr) 2001-02-07
DE59909779D1 (de) 2004-07-29
EP0947776A2 (fr) 1999-10-06

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