EP2090831B1 - Porte de four - Google Patents

Porte de four Download PDF

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Publication number
EP2090831B1
EP2090831B1 EP08002598.4A EP08002598A EP2090831B1 EP 2090831 B1 EP2090831 B1 EP 2090831B1 EP 08002598 A EP08002598 A EP 08002598A EP 2090831 B1 EP2090831 B1 EP 2090831B1
Authority
EP
European Patent Office
Prior art keywords
door
ventilation
oven
unit
opening
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.)
Not-in-force
Application number
EP08002598.4A
Other languages
German (de)
English (en)
Other versions
EP2090831A1 (fr
Inventor
Bernd Heisswolf
Harald Pörner
Christoph Walther
Klaus Wälzlein
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP08002598.4A priority Critical patent/EP2090831B1/fr
Publication of EP2090831A1 publication Critical patent/EP2090831A1/fr
Application granted granted Critical
Publication of EP2090831B1 publication Critical patent/EP2090831B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/02Doors specially adapted for stoves or ranges
    • F24C15/04Doors specially adapted for stoves or ranges with transparent panels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/006Arrangements for circulation of cooling air

Definitions

  • the present invention relates to an oven door for closing a cooking cavity of an oven according to the pre-amble of claim 1.
  • the invention also relates to an oven.
  • DE 84 13 224 U1 describes an oven door, with a front cover which comprises spring elements directed towards the inner door part to connect the front part with the inner part.
  • the inner part is made from sheet metal in one piece. This piece contains the inner window and the door frame.
  • the frame part of the inner part comprises openings in order to connect the inner part with spring elements of the front part. The spring elements snap into these openings for connection, and can be released for disassembling the door parts.
  • the outer surface of the door is not cooled or isolated.
  • DE 101 63 150 shows an oven door where the plates are connected through corner elements and horizontal and vertical elements. All these elements constitute a door frame in an assembled condition of the door.
  • an oven door whose inner plate can be removed.
  • the door has an upper and lower horizontal element. Between the upper horizontal element and an upper end element a pivotal point for turning the inner plate is arranged.
  • the inner plate is connected with the lower horizontal element which snaps in a connection part of the feather element to fix the door plates. This enables the inner plate to be fold out, but the inner plate cannot be taken out. For this door no ventilation is provided.
  • DE 696 09 223 T2 shows an oven door with a detachable device.
  • Side bars build a frame on the inner plate.
  • connection elements are arranged, so that these two devices can be snapped together. Guiding elements on both devices provide the correct assembling.
  • This connection is detachable. There is no possibility of inserting an additional inside plate.
  • EP 0 209 115 A1 discloses a door comprising a peripheral frame to which an internal transparent pane is adhesively secured and carrying an outer transparent pane removably attached thereto.
  • the frame has its lower and upper boundary areas formed with passages for the circulation of air through the interspace between the two panes, the upper boundary area of the frame being provided with a profile member secured thereto and having a centre portion thereof formed as a handle.
  • the profile member is formed with an internal cavity communicating through respective slots with the passages formed in the upper boundary area of the door and with the interior in the oven chamber.
  • the cavity contains first deflector elements for directing an air flow provenient from the interior of the oven into the interspace between the two transparent panes and second deflector elements defining venturi-type passages for facilitating the escape of air from the interspace.
  • EP 1 030 116 A2 discloses a solid glass appliance door for an oven, the door having an outer pane, an inner pane and extruded profiles arranged in the side regions between the two.
  • the inner pane is secured to an upper traverse profile and a lower traverse profile and forms a unit with it. If a completely ventilated appliance door is desired, the outer pane only abuts the upper traverse profile in sub-regions. Passage openings are present adjacent contact surfaces, so that the air is guided through the complete interior of the door and can exit in the upper region.
  • a door for closing a cooking cavity of an oven, especially a household oven, with an outer unit and an inner unit.
  • One unit is guided by at least one detachable or releasable connection means comprising snapping means, in the other unit, and at least one unit is provided with at least one opening for ventilation, which is connected in a closed position of the door to an air suction area of the oven.
  • the detachable or releasable connection means facilitate production, maintenance as well as cleaning of the door.
  • the outer unit contains a front plate, two vertical elements arranged in parallel on the front plate and at least one inside plate arranged between the vertical elements. This enables a compact and stable structure of the front plate and the at least one inside plate which is, in addition, mountable in an easy way.
  • the inner unit contains an inner plate and a frame, which extends over the side areas and the upper transversal area of the inner plate.
  • the at least one opening for ventilation is arranged close to the upper transversal area of the inner plate. This makes it possible to ventilate the plates up to their upper end.
  • the at least one opening for ventilation is located in the same plane or at the same level as the inner plate, that means they are directed towards the oven when the door is locked.
  • the air suction area of the oven which is the area where the at least one ventilation opening normally leads to, can advantageously be arranged over the cooking cavity.
  • the at least one opening for ventilation extends in a horizontal direction over about the width of the inside plates. That provides a maximum cross sectional area of the air flow, and improves the cooling of the oven door.
  • two or more openings for ventilation can be arranged side by side so that the air flow can disperse over the whole cross sectional area advantageously.
  • the at least one opening for ventilation is arranged between the upper transversal area of the frame and the inner plate. It is possible that this is provided through a distance or gap between these two parts.
  • the at least one opening for ventilation is arranged in a separate ventilation bar, which is preferably placed between the transversal frame part and the inner plate.
  • the ventilation bar preferably extends also into the inside of the door, which stabilises the complete door construction. Furthermore, the air flow can advantageously lead from the door inside to the air suction area of the oven through the ventilation bar without any turbulences.
  • the at least one opening for ventilation is arranged in an extension of the frame which adjoins the inner plate at the level of the cooking cavity. In this area of the frame part, the openings for ventilation can be inserted.
  • the interior area of the door has preferably at least one opening or opens towards the bottom, so that ambient air can be sucked in from the surrounding environment outside the oven.
  • the ventilation of the door is provided by an air flow, which gets sucked in from the bottom, is lead through the inside of the door and directed through the at least one opening for ventilation to the air suction area of the oven.
  • the air flow cross section stays at least approximately the same inside the door.
  • the vertical connection elements are arranged in the side areas of the unit, so that the air flow has no barriers to bypass and can be easily guided without turbulences from the bottom of the door. to the upper openings for ventilation.
  • the inner unit is mounted on the outer unit.
  • the frame is guided by at least one connection means in the vertical elements of the outer unit.
  • the connection of the two units is realized with at least one bayonet connection.
  • one unit is put on the other at first and then the two units are slid against each other, so that shaped connection means of one unit can reach into corresponding recesses, the bayonet openings or recesses, of the other unit.
  • several connection means are arranged on each side of the units which can be connected at the same time so that the two units can be connected easily one the one hand but also establish a stable connection on the other hand.
  • the shaped connection means snap into a final position, which is the position when both units form the assembled door, in corresponding gaps to establish and fix the connection of the two units.
  • This connection can be unfixed by opening the snapping connection and sliding one unit out of the bayonet guides. So the door can be disjoined in its main parts, the two door units, for cleaning or maintenance.
  • the door frame is made at least essentially of metal.
  • the door frame is made at least essentially of steel. This has the advantage that the frame can be cleaned particularly easily and the connection of the two units is very durable. It is also possible to have only parts of the frame made of metal. However, this invention is not limited to the use of metal for the frame, instead of metal any other suitable material can be taken.
  • the plates are usually made of glass or other transparent material.
  • the outer unit comprises at least one snapping hook
  • the inner unit comprises at least one opening with a rectangular shape
  • the snapping device is releasably pushable into the opening to connect the outer unit and the inner unit.
  • the invention comprises an oven with a cooking cavity and a door for closing the cooking cavity according to the invention.
  • FIG 1 and FIG 4 show a completely assembled door 1 which consists of a first unit 2 used as an outer unit and a second unit 3 used as an inner unit.
  • the outer unit 2 comprises a front plate 21 of the door 1 which is visible from the outside. On the upper outer surface of the front plate 21, a handle 28 is arranged.
  • the inner unit 3 is arranged on the inner surface of the front plate 21.
  • the inner unit 3 comprises a frame 32, which extends over the outer side areas 32A and 32B, respectively, and the upper transversal area 32C of the inner unit 3.
  • the lower transversal area 32D of the outer unit 3 no frame is provided. Consequently, the bottom of the door 1, which is not shown in FIG 1 , stays open for ventilation purposes.
  • a ventilation bar 34 with openings 33A, 33B for ventilation is arranged underneath the upper transversal area 32C of the inner unit 3.
  • the ventilation bar 34 has a thin stabilisation bar 35 in the middle between the openings 33A and 33B for ventilation. So the ventilation is spread over two openings for ventilation 33A and 33B.
  • the inner plate 31 of the door 1 closes or seals the cooking cavity.
  • the openings for ventilation 33A and 33B adjoin directly to an air suction area of the oven, which is placed over the cooking cavity. The air suction area of the oven is not shown in FIG 1 .
  • FIG 2 shows the outer unit 2.
  • the two parallel vertical elements 22A and 22B are fixed, preferably glued or screwed, on the back-sided side areas of the front plate 21. Between the vertical elements 22A and 22B, an inside plate 23 is arranged which is hold parallel to the front plate 21 by the vertical elements 22A and 22B.
  • the vertical elements 22A and 22B On their outwardly directed sides, the vertical elements 22A and 22B have insertion areas 41A and 41B in the upper area, insertion areas 51A and 51B in the middle area and insertion areas 61A and 61B in the lower area.
  • the insertion areas 41B, 51B and 61B Adjacent to the front plate 21, the insertion areas 41B, 51B and 61B comprise elongated supports 42B, 52B and 62B, respectively. Underneath the insertion areas 41B, 51B and 61B, also adjacent to the front plate 21, elongated openings 43B, 53B and 63B are arranged. In the lower area of the openings 43B and 53B, recesses 44B and 54B, respectively, are arranged.
  • the insertion area 41B, the support 42B, the opening 43B and the recess 44B on the outward side of the vertical element 22B form a bayonet or snapping connection to fix the inner unit 3.
  • the insertion area 51B, the support 52B, the opening 53B and the recess 54B on the outward side of the vertical element 22B form another bayonet or snapping connection to fix the inner unit 3.
  • the insertion area 61B, the support 62B and the opening 63B on the outward side of the vertical element 22B form a third bayonet or snapping connection to fix the inner unit 3.
  • the insertion area 41A, the support 42A, the opening 43A and the recess 44A on the outward side of the vertical element 22A form a bayonet or snapping connection to fix the inner unit 3.
  • the insertion area 51A, the support 52A, the opening 53B and the recess 54A on the outward side of the vertical element 22A form another bayonet or snapping connection to fix the inner unit 3.
  • the insertion area 61A, the support 62A, the opening 63A and the recess 64A on the outward side of the vertical element 22A form a bayonet or snapping connection to fix the inner unit 3.
  • FIG 3 shows the inner unit 3.
  • the frame 32 extends over the side areas 32A and 32B of the inner plate 31 of the inner unit 3 and the upper transversal area 32C over the ventilation bar 34.
  • the inner plate 31 closes the cooking cavity, not shown here.
  • the ventilation bar 34 adjoins to an air suction area, not shown here, which is arranged over the front of the cooking cavity.
  • the connection means for connecting the inner unit 3 with the outer unit 2 which are not shown in FIG 3 are arranged on the interior side of the side areas 32A and 32B of the frame.
  • connection means of the frame 32 of the inner unit 3 are positioned over the inserting areas 41A, 51A, 61A, 41B, 51B and 61B of the outer unit 2 and then concurrently inserted into these areas, orthogonally to the plane of the inner plate 31 and following direction D1.
  • the units 2 and 3 are connected.
  • the connecting elements of the inner unit 3 snap into a final end position into the recesses 54A, 54B of the vertical elements 22A and 22B of the outer unit 2.
  • FIG 5 shows a cross sectional view from a side view of the oven door 1.
  • the ventilation bar 34 extends under the traversal area 32C of frame 32 into the interior 27 of the first unit 2 between front plate 21 and inside plate 23.
  • the interior 27 of the first unit 2 is open at the bottom 9.
  • ambient air flow A is sucked through the bottom 27 of the door 1 into the interior 27 of the first unit 2 to cool the front plate 21.
  • the air flow A is guided between or through the space between the front plate 21 and the inside plate 23.
  • the air flow A extends from the bottom to the ventilation bar at the top and finally in the air suction area of the oven.
  • the cross-section of the air flow A is not noteworthy affected, as the front plate 21 and the interior plate 23 stay in their positions relative to each other. This makes it possible to optimize and preserve the form of the cross section over a long time which is helpful for maintaining the air flow A in the desired way.
  • the plates 21, 23, 31 are usually made of glass or other transparent material.
  • Figures 6 to 8 show another embodiment of the invention where the inner unit 3' is fixed to the outer unit 2' by two snapping hooks 72B' and, not shown, 72A'.
  • the snapping hook 72B' is sprayed onto the base area of the vertical, not shown element 22B'. It comprises a support plate 71B' which works as a base plate and which comprises an edge 76B' at its outer end.
  • a carrying element 75B' is arranged on the support plate 71B' where the carrying element 75B', at its outer end, forms the snapping hook 72B'.
  • the snapping hook 72B' is bent downwards at a bending 74B'.
  • the inner unit 3' comprises at the bottom of its side area 32B' a notch 73B'.
  • the notch 73B' is formed as a rectangular opening.
  • FIG 10 shows the muffle 80, the door 1 in front of the muffle and the fan 81 which is arranged above the muffle.
  • an air suction channel 82 which constitutes the air suction area is arranged and above the air suction channel 82, an air blowing channel 83 is arranged.
  • the fan 81 when operated, sucks the air out of the door 1 along the air suction channel 82, where it also sucks hot air out of the muffle 80 through the opening 84 above the muffle 80. After passing the fan 81, the air is blown through the blowing channel 83 and is blown out of the oven over the door 1.
  • a top plate 182 is arranged.

Landscapes

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

Claims (12)

  1. Porte de four (1, 1') pour fermer une cavité de cuisson d'un four, en particulier d'un four domestique, comprenant une unité extérieure (2, 2') et une unité intérieure (3, 3'), contenant une plaque interne (31), au moins l'une des unités (2, 3 ; 2', 3') étant pourvue d'au moins une ouverture de ventilation (33A, 33B, 33A', 33B') et
    l'unité interne (3) contenant un cadre (32) s'étendant sur la zone transversale supérieure (33B') de la plaque interne (31),
    caractérisée en ce que
    le cadre (32) s'étend par-dessus les zones latérales (32B') de la plaque interne (31), l'unité externe (2') comprend au moins un crochet d'encliquetage (72B'), et l'unité interne (3') comprend, à la base de sa zone latérale (32B'), une encoche (73B') formée en tant qu'ouverture rectangulaire, de telle sorte que le crochet d'encliquetage (72B') puisse être poussé de manière amovible dans l'encoche (73B') pour connecter l'unité externe (2') et l'unité interne (3'), la connexion pouvant être à nouveau libérée en poussant le crochet d'encliquetage (72B'),
    la ventilation de la porte (1) étant assurée par un flux d'air (A) qui est aspiré depuis le fond, est guidé à travers l'intérieur de la porte (1) et est dirigé à travers l'au moins une ouverture de ventilation (33A, 33B) jusqu'à une zone d'aspiration d'air du four reliée à l'au moins une ouverture de ventilation (33A, 33B, 33A', 33B') dans une position fermée de la porte (1, 1') et l'au moins une ouverture de ventilation (33A, 33B) étant disposée à proximité de la zone transversale supérieure (33B') de la plaque interne (31) et étant située dans le même plan ou au même niveau que la plaque interne (31).
  2. Porte de four (1) selon la revendication 1, caractérisée en ce que l'unité externe (2) contient une plaque avant (21), deux éléments verticaux (22A, 22B) agencés sur la plaque avant (21) et au moins une plaque intérieure (23) disposée entre les éléments verticaux (22A, 22B), un flux d'air (A) étant en particulier guidé entre la plaque avant (21) et la plaque intérieure (22).
  3. Porte de four (1) selon la revendication 1 ou 2, caractérisée en ce que l'au moins une ouverture de ventilation (33A, 33B) présente approximativement la même largeur que la plaque intérieure (23).
  4. Porte de four (1) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'au moins une ouverture de ventilation (33A, 33B) est disposée entre la zone transversale supérieure du cadre (32) et la plaque interne (31).
  5. Porte de four (1) selon la revendication 4, caractérisée en ce que l'au moins une ouverture de ventilation (33A, 33B) est disposée dans une barre de ventilation séparée.
  6. Porte de four (1) selon la revendication 4 ou 5, caractérisée en ce que l'au moins une ouverture de ventilation (33A, 33B) est disposée dans un prolongement du cadre (32) qui est adjacent à la plaque interne (31) au niveau de la cavité de cuisson.
  7. Porte de four (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'intérieur de la porte (1) présente au moins une ouverture ou s'ouvre vers le bas, pour aspirer l'air ambiant.
  8. Porte de four (1) selon la revendication 2 ou selon l'une quelconque des revendications précédentes dans la mesure où elles dépendent de la revendication 2, caractérisée en ce que le flux d'air (A), conduit à travers l'intérieur de la porte (1), est conduit à travers l'espace entre la plaque avant (21) et la plaque intérieure (23).
  9. Porte de four (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'unité interne (3) est montée sur l'unité externe (2).
  10. Porte de four (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le cadre (32) est guidé par au moins un moyen de connexion dans les éléments verticaux (22A, 22B) de l'unité externe (2).
  11. Porte de four (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le cadre (32) est fabriqué au moins en partie de métal, en particulier d'acier.
  12. Four comprenant une cavité de cuisson et une porte de four, pour fermer la cavité de cuisson, selon l'une des revendications 1 à 11.
EP08002598.4A 2008-02-13 2008-02-13 Porte de four Not-in-force EP2090831B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08002598.4A EP2090831B1 (fr) 2008-02-13 2008-02-13 Porte de four

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08002598.4A EP2090831B1 (fr) 2008-02-13 2008-02-13 Porte de four

Publications (2)

Publication Number Publication Date
EP2090831A1 EP2090831A1 (fr) 2009-08-19
EP2090831B1 true EP2090831B1 (fr) 2016-07-13

Family

ID=39636936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08002598.4A Not-in-force EP2090831B1 (fr) 2008-02-13 2008-02-13 Porte de four

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EP (1) EP2090831B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108709350A (zh) * 2018-06-08 2018-10-26 宁波欧燕电器有限公司 集成灶或电烤箱箱体的冷却系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20130863A1 (it) * 2013-10-25 2015-04-26 Indesit Co Spa Forno pirolitico con raffreddamento perfezionato
EP3118525B1 (fr) 2015-07-17 2018-03-21 Electrolux Appliances Aktiebolag Porte de four pour une cavité de four d'un four de cuisson

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0209115A1 (fr) * 1985-07-15 1987-01-21 INDUSTRIE ZANUSSI S.p.A. Porte de four, en particulier pour un four du type ventilé
DE19523772A1 (de) * 1995-06-29 1997-01-02 Bosch Siemens Hausgeraete Hausgeräte-Tür, vorzugsweise Ofentür eines Backofens
EP1030116A2 (fr) * 1999-02-17 2000-08-23 Imperial-Werke GmbH & Co. Four de cuisson
US6561180B1 (en) * 2002-01-15 2003-05-13 Maytag Corporation Oven door assembly
EP1507034A2 (fr) * 2003-08-14 2005-02-16 Gemtron Corporation Portes d'appareils

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1399874A (en) * 1971-10-23 1975-07-02 Creda Electric Ltd Door for ovens and other heated chambers
US3889100A (en) * 1974-07-31 1975-06-10 Gen Electric Oven ventilating system
DE8413224U1 (de) 1984-04-30 1984-08-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Tuer fuer den back- und bratraum eines bratofens
US5387258A (en) * 1991-12-30 1995-02-07 Fulgor S.P.A. Self-cleaning oven
FR2732097B1 (fr) * 1995-03-24 1997-05-23 Seb Sa Porte de four simplifiee avec module amovible
DE59808333D1 (de) * 1997-09-04 2003-06-18 Aeg Hausgeraete Gmbh Verfahren zum Kühlen einer Garofentür und Garofen mit Kühleinrichtung
DE10163150C2 (de) 2000-12-22 2003-10-30 Miele & Cie Gerätetür, vorzugsweise für einen Backofen
DE10307086A1 (de) 2003-02-19 2004-09-09 Electrolux Home Products Corporation N.V. Garofen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0209115A1 (fr) * 1985-07-15 1987-01-21 INDUSTRIE ZANUSSI S.p.A. Porte de four, en particulier pour un four du type ventilé
DE19523772A1 (de) * 1995-06-29 1997-01-02 Bosch Siemens Hausgeraete Hausgeräte-Tür, vorzugsweise Ofentür eines Backofens
EP1030116A2 (fr) * 1999-02-17 2000-08-23 Imperial-Werke GmbH & Co. Four de cuisson
US6561180B1 (en) * 2002-01-15 2003-05-13 Maytag Corporation Oven door assembly
EP1507034A2 (fr) * 2003-08-14 2005-02-16 Gemtron Corporation Portes d'appareils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108709350A (zh) * 2018-06-08 2018-10-26 宁波欧燕电器有限公司 集成灶或电烤箱箱体的冷却系统

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