EP0476364B1 - Four de cuisson - Google Patents
Four de cuisson Download PDFInfo
- Publication number
- EP0476364B1 EP0476364B1 EP91114306A EP91114306A EP0476364B1 EP 0476364 B1 EP0476364 B1 EP 0476364B1 EP 91114306 A EP91114306 A EP 91114306A EP 91114306 A EP91114306 A EP 91114306A EP 0476364 B1 EP0476364 B1 EP 0476364B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- baking oven
- oven door
- air
- flow guide
- cooling air
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 54
- 238000009413 insulation Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000002441 reversible effect Effects 0.000 claims 2
- 230000001174 ascending effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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
- F24C15/006—Arrangements for circulation of cooling air
-
- 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 in which a cooling air flow is generated in at least one cooling air fan in a cooling air duct of the housing containing an air inflow duct and an outflow duct, which passes through the space in the oven door between the outermost oven door pane and an inner oven door pane.
- an air forced cooling system is known to keep the outer surfaces of a stove when operating the oven below predetermined maximum temperatures.
- a cooling air blower is used to cool the cooling air through inlet openings below the oven door and through inlet openings at the bottom of the oven Oven door sucked in.
- the cooling air is distributed within the cooling air guide channels of the housing and prevents inadmissible heat transfer from the surfaces of the heat-insulated oven muffle to the outer surfaces or the bottom surface of the stove.
- the oven door and the door windows are also cooled by the air flow in the space between the outermost oven door window and an inner oven door window designed as a double window.
- DE-GM 87 05 364 shows a split glass front that surrounds the switch panel and the oven door, in which the oven door is thermally separated from the door body by a cooling air duct provided on the rear of the glass front.
- the cooling air flowing upward in the space between the door body and the oven door front panel emerges without a targeted air flow in the lower part of the bowl-shaped glass front in a gap opening between the upper and the lower part.
- both an ascending air duct with an overhead air duct that expediently extends over the entire width of the oven door and a downward air duct with a slot-shaped outlet of the exhaust air duct below the oven door are possible. If the air duct rises and the exhaust duct exits at the level of the switch panel, this may result in a warm air blowing flow which is unpleasant for the user.
- DE-AS 23 29 024 therefore specifies a distribution of the exhaust air duct from the outlet side of the cooker by a flow guide in the form of a V-shaped wedge, so that the cooling air sucked in from below exits into the bypass space above the oven door in two side outlet openings.
- This exhaust air duct and the enlargement of the blow-out area are intended on the one hand to lower the temperature of the exiting heated cooling air and on the other hand to avoid blowing directly on the operator standing in front of the stove.
- a V-shaped flow guide body which deflects the cooling-air flow fanned by a blower to blow-out openings lying laterally below the switch strip, is also known from DE-OS 23 10 290 and from DE-OS 23 52 961.
- a roof guiding flow guide body is used in an oven in DE-OS 26 56 565 to guide a part of the cooling air flow in the area of the rear air outlet recess to the mouth of a vapor extraction duct and thereby to achieve a vapor extraction mixed with the heated cooling air being discharged.
- the invention is based on the task of designing an oven of the type described in the introduction in such a way that, with expediently effective cooling air guidance, increased cooling occurs where maximum values are to be expected across the width of the oven door after the temperature distribution.
- This problem is solved in that the air duct is designed to adapt to the temperature distribution on the outermost oven door window over the door width with different air passage, the largest air flow occurring in the central area.
- Such a design allows the cooling air requirement to be adapted to the temperature distribution in such a way that an essentially uniform permissible temperature on the outside is not exceeded even in the region of the outermost oven door pane.
- the different air flow rates across the door width can be solved technically in different ways.
- An advantageous possibility is to enlarge the passage cross section of the air flow in the central region by the shaping of at least one oven door pane and thus to cause an increased air throughput.
- This different flow recess is expediently created by the shape of the outermost oven door pane.
- the outermost oven door pane can advantageously be curved at least in the area of its vertical edges, but also as a whole with a vertical axis of curvature.
- a corresponding shaping of the inner oven door window which changes the channel cross section can also take place.
- At least one flow guide element which reduces the flow cross section or the flow intensity in the edge region of the oven door on both sides compared to the central region of the oven door pane.
- Such a flow guiding element can advantageously be arranged in the space between the outermost oven door pane and an inner oven door pane.
- a row of suction openings distributed over the width of the oven door can be used, which have a larger cross section in the central region than in the region of the vertical outer edges.
- a flow guide is arranged in the cooling air duct for the outlet of the exhaust air duct in such a way that the heated cooling air is at least partially from the Intake area of the cooling air supply to the oven door is deflected.
- Such a flow guiding body can expediently be arranged symmetrically in the central region in front of the outlet of the exhaust air duct which extends across the door width below the oven door in such a way that the exhaust air is conducted from the central region into the edge regions below the door.
- the flow guide body is advantageously formed triangularly diverging in the flow direction.
- a further advantageous design can optionally be achieved in that the flow guide for asymmetrical flow control is arranged such that the heated cooling air exits on one side in the edge region of the oven door, which is on the side of the vertical axis of rotation of the oven door. This prevents the operator from standing in the heated exhaust air flow when gripping the handle bar to open the oven door.
- Such a flow guide body can expediently be designed to be switchable after the optionally fixed door stop. This makes it possible to determine that the outlet of the exhaust air flow is in each case on the opposite edge side facing away from the grip strip.
- An advantageous embodiment of the switchable flow guide body can provide that it is a pivotable air baffle.
- Both the symmetrical flow guide and the flow guide body intended for asymmetrical air guidance can optionally be provided with thermal insulation which supplements the reduced heat insulation in the area of the flow guide body.
- the flow guide body can either be made of a heat-insulating material, for example plastic, or, in the case of thin-walled metal formation, have a heat-insulating filling made of insulation material.
- an oven muffle 1 which is optionally additionally insulated on the outside with heat insulation material, is shown, which is closed on the front side with an oven door 3 pivotably pivoted in hinge bearings 2 about a vertical pivot axis.
- a cooling air blower 6 is provided in the cooling air duct of the housing containing a cooling air inflow duct 4 and an exhaust air duct 5 in order to facilitate flow.
- the oven door 3 provided with rising air flow from an intake slot 3a has an outermost oven door window 7 and an inner oven door window designed as a double window 8.9. Between the inside of the outermost oven door pane 7 and the outside of the inner oven door pane 8, a cooling duct 10 is formed in the oven door 3, which allows a different air throughput with a maximum value in the middle area over the door width.
- the outermost oven door pane 7a is bent inwards in the area of its outer vertical edges, as a result of which the passage cross section of the cooling channel 10 and thus the amount of air flowing to the sides is reduced and concentrated on the central area.
- FIG. 3 shows a shape of the outermost oven door pane 7b that is kinked in the region of the center line and resembles a roof ridge. In this case too, there is a maximum air throughput in the central region of the cooling duct 10.
- the sectional view in Fig. 5 shows a triangular flow guide body 11, which is arranged in the exhaust air duct 5 (see Fig. 1) symmetrically to the central area in front of the outlet of the exhaust air duct such that the heated cooling air from the area of the suction slot 3a on the underside of the oven door 3 is deflected towards the two edge areas of the door. This is to avoid that warm exhaust air is sucked out of the exhaust air duct 5 in a short-circuit manner in the intake slots 3 a of the oven door 3.
- the oven door 3 which is designed analogously to the exemplary embodiment in FIG. 4, can thus draw in cool room air via the suction slot 3a.
- the symmetrical flow guide body 11 is lined with an insulation filling 12 in its interior.
- FIG. 6 shows an air guide plate 13, which can be swiveled around a pivot pin 14 and can be switched over after the optionally selectable door stop of the oven door 3, which allows the heated cooling air to be discharged on one side in the edge region of the oven door 3, which on the side of the vertical axis of rotation of the oven door 3 lies and faces away from the side of the handle of the oven door 3.
- the embodiment shown shows the door hinge on the left and thus adapted an exit of the heated cooling air in the left edge area of the oven door.
- fresh air from the surrounding space also enters the cooling air inflow channel 4, as indicated by the arrow in FIG. 1.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Ovens (AREA)
Claims (14)
- Four, sur lequel un courant d'air de refroidissement est produit, par un ventilateur d'air de refroidissement au moins, dans un passage d'air de refroidissement de la carcasse, comportant un conduit d'arrivée et un conduit d'évacuation d'air, ce courant traversant, dans la porte du four, l'espace intermédiaire compris entre le vitrage externe de la porte du four et un vitrage interne, caractérisé en ce que le passage d'air, par adaptation à la distribution de température sur le vitrage externe de la porte du four (7, 7a, 7b, 7c), est réalisé sur la largeur de la porte avec un débit d'air différent, le débit d'air maximal se situant dans la zone centrale.
- Four suivant la revendication 1, caractérisé en ce que le débit d'air différent est produit par la conformation d'un vitrage au moins de la porte du four (7, 8).
- Four suivant la revendication 2, caractérisé en ce que le débit d'air différent est produit par la conformation du vitrage externe de la porte du four (7a, 7b, .7c).
- Four suivant la revendication 3, caractérisé en ce que le vitrage externe de la porte du four (7a, 7c) est incurvé dans la zone des bords verticaux, au moins.
- Four suivant la revendication 1, caractérisé en ce qu'un élément de guidage de l'écoulement est disposé pour produire le débit d'air différent.
- Four suivant la revendication 5, caractérisé en ce que l'élément de guidage de l'écoulement est disposé dans l'espace intermédiaire entre le vitrage externe (7) et un vitrage interne (8) de la porte du four.
- Four suivant la revendication 1, caractérisé en ce qu'un corps de guidage de l'écoulement (11, 13) est disposé dans le passage d'air de refroidissement en direction de la sortie du conduit d'évacuation (5), de telle sorte que l'air de refroidissement réchauffé est dévié, en partie du moins, de la zone d'aspiration (3a) de l'alimentation en air de refroidissement en direction de la porte du four (3).
- Four suivant la revendication 7, caractérisé en ce que le corps de guidage de l'écoulement (11) est disposé symétriquement dans la zone centrale, devant la sortie du conduit d'évacuation d'air (5) s'étendant sur la largeur de la porte, au-dessous de la porte du four (3), de telle sorte que l'air d'évacuation est dirigé de la zone centrale dans les zones marginales au-dessous de la porte.
- Four suivant la revendication 8, caractérisé en ce que le corps de guidage de l'écoulement (11) a une réalisation divergente dans le sens d'écoulement.
- Four suivant la revendication 9, caractérisé en ce que le corps de guidage de l'écoulement (11) est triangulaire.
- Four suivant la revendication 7, caractérisé en ce que le corps de guidage de l'écoulement (13) est disposé de telle sorte, pour le passage asymétrique de l'écoulement, que l'air réchauffé sort d'un côté dans la zone marginale de la porte du four (3), située sur le côté de l'axe de rotation vertical de la porte du four (3).
- Four suivant la revendication 11, caractérisé en ce que le corps de guidage de l'écoulement (13) peut être orienté en direction du butoir de porte fixé sélectivement.
- Four suivant la revendication 12, caractérisé en ce que le corps de guidage de l'écoulement orientable est une chicane pivotante (13).
- Four suivant la revendication 7, caractérisé en ce que le corps de guidage de l'écoulement (11, 13) est muni d'un calorifugeage (12).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4028674A DE4028674A1 (de) | 1990-09-10 | 1990-09-10 | Backofen |
DE4028674 | 1990-09-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0476364A1 EP0476364A1 (fr) | 1992-03-25 |
EP0476364B1 true EP0476364B1 (fr) | 1993-06-16 |
Family
ID=6413952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91114306A Expired - Lifetime EP0476364B1 (fr) | 1990-09-10 | 1991-08-26 | Four de cuisson |
Country Status (3)
Country | Link |
---|---|
US (1) | US5107821A (fr) |
EP (1) | EP0476364B1 (fr) |
DE (2) | DE4028674A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005044646A1 (de) * | 2005-09-19 | 2007-03-29 | BSH Bosch und Siemens Hausgeräte GmbH | Gargerät |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4209622A1 (de) * | 1992-03-25 | 1993-09-30 | Schott Glaswerke | Sichtfenster für ein Gerät mit erhöhter Innenraumtemperatur |
ATE143124T1 (de) * | 1992-03-25 | 1996-10-15 | Schott Glaswerke | Sichtfenster für ein gerät mit erhöhter innenraumtemperatur |
DE9416398U1 (de) * | 1994-10-12 | 1994-12-01 | Gebr. Seppelfricke GmbH, 45881 Gelsenkirchen | Backofen bzw. Backkasten mit einer Tür |
IT1296326B1 (it) * | 1997-09-23 | 1999-06-25 | Electrolux Zanussi Elettrodome | Perfezionamenti ai forni di cottura domestici da incasso |
DE19818682C1 (de) * | 1998-04-27 | 1999-12-23 | Schott Glas | Sichttür für ein Hausgerät |
US6172338B1 (en) | 1999-10-05 | 2001-01-09 | Maytag Corporation | Cooling system for a cooking appliance |
DE19950819A1 (de) * | 1999-10-21 | 2001-04-26 | Bsh Bosch Siemens Hausgeraete | Backofentür-Glasscheibe |
DE10259348A1 (de) * | 2002-12-18 | 2004-07-08 | BSH Bosch und Siemens Hausgeräte GmbH | Gehäuse für ein Gargerät |
DE10307086A1 (de) * | 2003-02-19 | 2004-09-09 | Electrolux Home Products Corporation N.V. | Garofen |
US20050139209A1 (en) * | 2003-12-26 | 2005-06-30 | David Deng | Insulated fireplace |
TR200603707T1 (tr) | 2004-01-28 | 2007-01-22 | Arçeli̇k A.Ş. | Bir pişirici cihaz |
KR100613510B1 (ko) * | 2004-04-12 | 2006-08-17 | 엘지전자 주식회사 | 조리기구의 냉각구조 |
US7874289B2 (en) * | 2005-03-29 | 2011-01-25 | Maytag Corporation | Door assembly for a cooking appliance |
KR20070059394A (ko) * | 2005-12-06 | 2007-06-12 | 엘지전자 주식회사 | 전기 오븐 |
DE102007005718A1 (de) * | 2007-02-05 | 2008-08-07 | BSH Bosch und Siemens Hausgeräte GmbH | Lüftungsblende und Ofen |
KR101281513B1 (ko) * | 2008-02-05 | 2013-07-03 | 삼성전자주식회사 | 오븐 |
EP2241820B1 (fr) * | 2009-04-10 | 2013-09-25 | Koninklijke Fabriek Inventum B.V. | Four doté d'un refroidissement externe et methode d'operation |
US8465277B2 (en) | 2009-06-29 | 2013-06-18 | David Deng | Heat engine with nozzle |
US9686825B2 (en) * | 2009-09-01 | 2017-06-20 | Manitowoc Foodservice Uk Limited | Method and apparatus for cooling a user interface and/or door of a cooking device |
US9829195B2 (en) | 2009-12-14 | 2017-11-28 | David Deng | Dual fuel heating source with nozzle |
DE102010000291A1 (de) | 2010-02-03 | 2011-08-04 | Rational AG, 86899 | Garraumtür und Gargerät |
FR2956949B1 (fr) | 2010-03-04 | 2013-04-19 | Pelle Equipements | Dispositif de cuisson de produits alimentaires a base de pate et filet de cuisson. |
CN202328495U (zh) | 2011-11-16 | 2012-07-11 | 普鲁卡姆电器(上海)有限公司 | 带有360度风门调节装置的多气源平衡式燃气取暖器 |
CN104717885B (zh) * | 2012-09-12 | 2017-03-08 | 瑞文特国际有限公司 | 热空气搁架式烤炉 |
CA2813871C (fr) | 2013-04-19 | 2016-05-31 | Canadian Heating Products Inc. | Systeme de refroidissement pour foyer au gaz |
US20150075513A1 (en) * | 2013-09-19 | 2015-03-19 | General Electric Company | Oven Range Appliance and a Cooling Assembly for the Same |
US10495318B2 (en) | 2017-05-26 | 2019-12-03 | Electrolux Home Products, Inc. | Balanced cooling duct for cooking oven |
US11045047B2 (en) | 2017-11-10 | 2021-06-29 | Ron's Enterprises, Inc. | Variable capacity oven |
US10619862B2 (en) * | 2018-06-28 | 2020-04-14 | Whirlpool Corporation | Frontal cooling towers for a ventilation system of a cooking appliance |
US11073288B2 (en) | 2019-06-26 | 2021-07-27 | Bsh Home Appliances Corporation | Thick oven door with cooling |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2394176A (en) * | 1944-06-14 | 1946-02-05 | Florence Stove Co | Oven door construction |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3659582A (en) * | 1970-06-10 | 1972-05-02 | Dearborn Glass Co | Oven cabinet construction |
DE2310290C3 (de) * | 1973-03-01 | 1978-07-13 | Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart | Einbaubackofen mit Mitteln zur pyrolyttschen Selbstreinigung |
DE2329024B2 (de) * | 1973-06-07 | 1978-09-21 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Herd, insbesondere Herd mit pyrolytischer Selbstreinigung des Bratraumes |
DE2352961B2 (de) * | 1973-10-23 | 1978-04-06 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Herd mit Bratraum und im Herdgehäuse angeordnetem Lüfter |
US3889100A (en) * | 1974-07-31 | 1975-06-10 | Gen Electric | Oven ventilating system |
US3889099A (en) * | 1974-07-31 | 1975-06-10 | Gen Electric | Door cooling system |
DE2656565B2 (de) * | 1976-12-14 | 1979-07-12 | Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart | Backofen mit einem Wrasenabzugskanal |
US4163444A (en) * | 1977-01-06 | 1979-08-07 | Les Industries Bfg Limitee | Door for pyrolytic range |
DE2830342C2 (de) * | 1978-07-11 | 1987-02-12 | Buderus Ag, 6330 Wetzlar | Einbau-Doppelbackofen |
DE8705364U1 (de) * | 1987-04-10 | 1988-08-04 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Hausgeräte-Glasfront, vorzugsweise Herdfront |
DE3712232A1 (de) * | 1987-04-10 | 1988-10-27 | Licentia Gmbh | Hausgeraete-glasfront, vorzugsweise herdfront |
IT213611Z2 (it) * | 1988-02-17 | 1990-01-22 | Eurodomestici Ind Riunite | Forno, in particolare a micro onde, con faccia frontale inclinata. |
-
1990
- 1990-09-10 DE DE4028674A patent/DE4028674A1/de not_active Withdrawn
-
1991
- 1991-08-26 EP EP91114306A patent/EP0476364B1/fr not_active Expired - Lifetime
- 1991-08-26 DE DE9191114306T patent/DE59100155D1/de not_active Expired - Fee Related
- 1991-08-30 US US07/752,721 patent/US5107821A/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2394176A (en) * | 1944-06-14 | 1946-02-05 | Florence Stove Co | Oven door construction |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005044646A1 (de) * | 2005-09-19 | 2007-03-29 | BSH Bosch und Siemens Hausgeräte GmbH | Gargerät |
DE102005044646B4 (de) * | 2005-09-19 | 2017-10-12 | BSH Hausgeräte GmbH | Gargerät |
Also Published As
Publication number | Publication date |
---|---|
EP0476364A1 (fr) | 1992-03-25 |
DE59100155D1 (de) | 1993-07-22 |
DE4028674A1 (de) | 1992-03-12 |
US5107821A (en) | 1992-04-28 |
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