EP0942235A1 - Baking oven with suction casing - Google Patents

Baking oven with suction casing Download PDF

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Publication number
EP0942235A1
EP0942235A1 EP99104380A EP99104380A EP0942235A1 EP 0942235 A1 EP0942235 A1 EP 0942235A1 EP 99104380 A EP99104380 A EP 99104380A EP 99104380 A EP99104380 A EP 99104380A EP 0942235 A1 EP0942235 A1 EP 0942235A1
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EP
European Patent Office
Prior art keywords
suction
cooling air
oven
vapor
housing
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.)
Granted
Application number
EP99104380A
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German (de)
French (fr)
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EP0942235B2 (en
EP0942235B1 (en
Inventor
Christian Dipl.-Ing. Unterreiner (Fh)
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.)
Motoren Ventilatoren Landshut GmbH
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Motoren Ventilatoren Landshut GmbH
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Application filed by BSH Bosch und Siemens Hausgeraete GmbH, Motoren Ventilatoren Landshut GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0942235A1 publication Critical patent/EP0942235A1/en
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Publication of EP0942235B1 publication Critical patent/EP0942235B1/en
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    • 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
    • F24C15/20—Removing cooking fumes
    • F24C15/2007—Removing cooking fumes from oven cavities

Definitions

  • the present invention relates to an oven with an oven muffle, in the Wall a vapor opening is provided, on which a suction housing with two from each other separate suction chambers is set, in which a vapor fan and a Cooling air fan wheel of a common fan motor are arranged, the vapor suction chamber with the oven muffle for vacuuming and blowing out the steam is connected and the cooling air suction chamber with the housing space of the oven for sucking in and blowing out the housing space outside the oven muffle flowing cooling air is connected, and wherein both suction chambers discharge at least into a blow-out duct on the pressure side.
  • Such an oven is known from the German utility model G 87 06 668, with a circular vapor opening in the upper corner area of the furnace muffle is provided in the muffle wall, on which a pipe flange is placed.
  • a pipe flange is placed at this Pipe flange.
  • the fan drive drives one through the cover part in the suction housing protruding output shaft, the two Wears fan wheels.
  • the object of the present invention is an oven according to the preamble of claim 1 to simplify the design with simple means and thus to make it cheaper.
  • this is achieved in that in an oven according to the preamble of claim 1 of the fan motor between the two fan wheels in the suction housing is arranged.
  • this is the distance between the cooling air fan wheel from the hot vapors enlarged, which makes this fan wheel cheaper can be designed.
  • Second is the arrangement of the fan motor between the two fan wheels a better and easier mounting of the fan motor and thus a smoother running of the fan wheels possible.
  • the Arrangement of the fan motor in terms of flow behind the cooling air fan wheel for this an undisturbed intake of the cooling air with a large free intake cross-section realized. This can also reduce the noise when the cooling air is drawn in become.
  • the fan motor is on a partition of the two suction chambers. This is a structurally simple means compact design and stable mounting of the fan motor.
  • the fan motor is shielded from the vapor flow by the partition.
  • the suctioned cooling air is led through the suction housing so that it divides this wall flows around a large area and thereby cools.
  • the blow-out channel is funnel-shaped in the blow-out direction except for Width of the oven muffle extended.
  • a reduction in the temperature of the vapor-air mixture when leaving the oven can be achieved in particular be provided in the area of the exhaust openings of the suction chamber air guide are, which means that the vapors over substantially the entire width of the exhaust duct is blown out mixed with the cooling air.
  • An oven has an oven muffle 1 which is open at the front and which is articulated by an articulated Door is lockable.
  • the oven muffle 1 are known heating elements assigned to heat the cooking space. Furthermore, the oven muffle 1 is surrounded from a known housing of the oven (not shown). Above one Cover wall 3, an oven insulation 5 is arranged, which essentially on all sides Oven muffle 1 surrounds.
  • a metallic filter housing 9 is held in the top wall 3 of the oven muffle 1 .
  • the filter housing 9 has a cup-shaped housing base 11 and an associated one Housing cover 13 on.
  • In the filter housing 9 is a metal mesh serving as a filter 15 arranged.
  • the housing base 11 and the housing cover 13 have suitable Openings for pulling the vapors out of the oven muffle 1 through the filter 15 on.
  • Above the oven insulation 5 of the oven muffle 1 is a multi-part Fan unit 17 held.
  • the base plate 19 is on the oven insulation 5 or attached to the housing of the oven muffle 1.
  • Has in the area of the vapor opening 7 the base plate 19 a suitably pulled down base plate pot 20 with corresponding Suction openings.
  • the housing cover 13 is on the base plate pot 20 the filter housing 9 attached.
  • On which is funnel-shaped in the direction of flow expanding base plate 19 (FIG. 2) sits a correspondingly designed air duct hood 21 (Fig. 1).
  • In the air chamber formed between them is vertical standing a fan motor 23 known per se with a motor shaft 25.
  • the spiral housing 27 For Positioning of the fan motor 23 relative to the vapor opening 7 and a cooling air intake opening 28 of the air shaft hood 21, the spiral housing 27 has first centering pins 29 and second centering pins 31.
  • the first centering pins 29 of the volute 27 sit in corresponding openings in the base plate 19.
  • the second Centering pins 31 of the volute casing 27 are seated in corresponding openings in the air duct hood 21.
  • Through the spiral housing 27, which sits tightly on the base plate 19 is in the area of the vapor opening 7 a vapor suction chamber which is only open at the front 33 formed (Fig. 1, 2).
  • a cooling air suction chamber is located in the air shaft hood 21 above the fan motor 23 35 formed. Both suction chambers 33 and 35 open into a front open and expanding funnel-shaped blow-out channel 36, the top and bottom side through the Base plate 19 and the manhole cover 21 is limited. Above the fan motor 23, the air shaft hood 21 has the circular cooling air intake opening 28 which is limited by a chamber ring 37. The one facing the sucked cooling air The end face of the ring 37 is fluidly rounded in terms of flow. In the free opening cross section of this chamber ring 37 is connected to the motor shaft 25 an axial fan 39 for sucking in the heated cooling air between the The housing of the oven and the oven muffle 1 flows.
  • the axial fan wheel 39 Opposite the axial fan wheel 39 is a radial fan wheel 41 on the motor shaft 25 of the fan motor 23 attached.
  • the suitably dimensioned radial fan wheel pulls 41 out of the oven muffle 1 through the filter 15 warm vapors Air into the volute 27 (arrows in Fig. 1).
  • the vapor then becomes essentially horizontally from a vapor outlet opening 43 of the spiral housing 27 into the outlet duct 36 pressed.
  • the axial fan 39 draws heated cooling air into it Suction fan housing 19, 21 and presses it past the fan motor 23 into the exhaust duct 36 (arrows in Fig. 1).
  • the cooling air essentially flows around the volute casing on all sides 27 to cool it down.
  • a plurality of air guide fins 45 are arranged (only shown in FIG. 2), which are responsible for the mixing of the vapor with the cooling air. Furthermore, these ribs 45 are arranged in this way and designed to keep the mixture of vapors and cooling air throughout Distribute the width of the blow-out duct 36. This mixture then emerges from a front Duct opening 47 of the blow-out duct 36 in the region of an oven flange 49 over essentially its entire width above the muffle opening (FIG. 2) Free.

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

Abstract

A food oven has a jacket (1) incorporating an outlet for cooking vapors discharging to a suction housing with two discrete suction chambers. The housing incorporates a vapor blower fan and a cooling fan, both driven by a single electric motor (23) located between the two fans (39, 41) within the suction housing (19, 21). The cooling fan (39) is fabricated in plastic. The ventilator motor (23) is positioned in the flow of cool air. The ventilator motor (23) is located on a panel (27) separating the two suction chambers (33, 35). The vapor discharge passage (36) is funnel-shaped.

Description

Die vorliegende Erfindung betrifft einen Backofen mit einer Backofenmuffel, in deren Wand eine Wrasenöffnung vorgesehen ist, auf die ein Sauggehäuse mit zwei voneinander getrennten Saugkammern gesetzt ist, in denen ein Wrasenlüfterrad und ein Kühlluftlüfterrad eines gemeinsamen Lüftermotors angeordnet sind, wobei die Wrasensaugkammer mit der Backofenmuffel zum Absaugen und Ausblasen des Wrasens in Verbindung steht und die Kühlluftsaugkammer mit dem Gehäuseraum des Backofens zum Ansaugen und Ausblasen der den Gehäuseraum außerhalb der Backofenmuffel durchströmenden Kühlluft in Verbindung steht, und wobei beide Saugkammern druckseitig zumindest in einen Ausblaskanal münden.The present invention relates to an oven with an oven muffle, in the Wall a vapor opening is provided, on which a suction housing with two from each other separate suction chambers is set, in which a vapor fan and a Cooling air fan wheel of a common fan motor are arranged, the vapor suction chamber with the oven muffle for vacuuming and blowing out the steam is connected and the cooling air suction chamber with the housing space of the oven for sucking in and blowing out the housing space outside the oven muffle flowing cooling air is connected, and wherein both suction chambers discharge at least into a blow-out duct on the pressure side.

Ein derartiger Backofen ist bekannt aus dem deutschen Gebrauchsmuster G 87 06 668, wobei im oberen Eckenbereich der Ofenmuffel eine kreisförmige Wrasenöffnung in der Muffelwand vorgesehen ist, auf die ein Rohrflansch aufgesetzt ist. An diesem Rohrflansch wiederum ist eine Sauggehäuse befestigt, an dessen Deckelteil ein Träger für einen elektromotorischen Gebläseantrieb befestigt ist. Der Gebläseantrieb treibt eine durch das Deckelteil in das Sauggehäuse ragende Abtriebswelle an, die die zwei Lüfterräder trägt.Such an oven is known from the German utility model G 87 06 668, with a circular vapor opening in the upper corner area of the furnace muffle is provided in the muffle wall, on which a pipe flange is placed. At this Pipe flange in turn is attached to a suction housing, on the cover part of a carrier for an electric motor fan drive is attached. The fan drive drives one through the cover part in the suction housing protruding output shaft, the two Wears fan wheels.

Aufgabe der vorliegenden Erfindung ist es, einen Backofen gemäß dem Oberbegriff des Patentanspruches 1 mit einfachen Mitteln konstruktiv zu vereinfachen und damit kostengünstiger zu gestalten. The object of the present invention is an oven according to the preamble of claim 1 to simplify the design with simple means and thus to make it cheaper.

Erfindungsgemäß ist dies dadurch erreicht, daß bei einem Backofen nach dem Oberbegriff des Patentanspruches 1 der Lüftermotor zwischen den beiden Lüfterrädern in dem Sauggehäuse angeordnet ist. Dadurch ist zum einen der Abstand des Kühlluftlüfterrades von dem heißen Wrasen vergrößert, wodurch dieses Lüfterrad kostengünstiger gestaltet werden kann. Zum anderen ist durch die Anordnung des Lüftermotors zwischen den beiden Lüfterrädern eine bessere und einfachere Lagerung des Lüftermotors und damit ein ruhigerer Lauf der Lüfterräder möglich. Weiterhin ist durch die Anordnung des Lüftermotors strömungstechnisch hinter dem Kühlluftlüfterrad für dieses ein ungestörtes Ansaugen der Kühlluft mit einem großen freien Ansaugquerschnitt realisiert. Dadurch können zusätzlich die Geräusche beim Ansaugen der Kühlluft reduziert werden.According to the invention this is achieved in that in an oven according to the preamble of claim 1 of the fan motor between the two fan wheels in the suction housing is arranged. On the one hand, this is the distance between the cooling air fan wheel from the hot vapors enlarged, which makes this fan wheel cheaper can be designed. Second is the arrangement of the fan motor between the two fan wheels a better and easier mounting of the fan motor and thus a smoother running of the fan wheels possible. Furthermore, the Arrangement of the fan motor in terms of flow behind the cooling air fan wheel for this an undisturbed intake of the cooling air with a large free intake cross-section realized. This can also reduce the noise when the cooling air is drawn in become.

Erfindungsgemäß ist insbesondere aus Kostenersparnisgründen das vom durch das Sauggehäuse strömenden heißen Wrasen deutlich beabstandete Kühlluftlüfterrad aus Kunststoffmaterial hergestellt.According to the invention, in particular for reasons of cost savings, that of the Suction case flowing hot vapors from clearly spaced cooling air fan Made of plastic material.

Zur Herabsetzung der Betriebstemperatur des Lüftermotors ist dieser im Kühlluftstrom angeordnet.To reduce the operating temperature of the fan motor, it is in the cooling air flow arranged.

Gemäß einer bevorzugten Ausführungsform ist der Lüftermotor auf einer Trennwand der beiden Saugkammern gehaltert. Dadurch ist mit konstruktiv einfachen Mitteln eine kompakte Bauform und eine stabile Lagerung des Lüftermotors realisiert. Der Lüftermotor ist durch die Trennwand von dem Wrasenstrom abgeschirmt. Bevorzugterweise ist die angesaugte Kühlluft so durch das Sauggehäuse geführt, das es diese Trennwand großflächig umströmt und dadurch kühlt.According to a preferred embodiment, the fan motor is on a partition of the two suction chambers. This is a structurally simple means compact design and stable mounting of the fan motor. The fan motor is shielded from the vapor flow by the partition. Preferably the suctioned cooling air is led through the suction housing so that it divides this wall flows around a large area and thereby cools.

Um die ausgeblasene Kühlluft bzw. den ausgeblasenen Wrasen möglichst gut verteilen zu können, ist der Ausblaskanal in Ausblasrichtung trichterförmig bis etwa auf die Breite der Backofenmuffel erweitert. Eine Herabsetzung der Temperatur des Wrasen-Luftgemisches beim Austritt aus dem Backofen kann insbesondere dadurch erreicht werden, daß im Bereich der Ausblasöffnungen der Saugkammer Luftleitmittel vorgesehen sind, wodurch der Wrasen über im wesentlichen die gesamte Breite des Ausblaskanals mit der Kühlluft vermischt ausgeblasen wird.Distribute the blown cooling air or the blown vapors as well as possible To be able to, the blow-out channel is funnel-shaped in the blow-out direction except for Width of the oven muffle extended. A reduction in the temperature of the vapor-air mixture when leaving the oven can be achieved in particular be provided in the area of the exhaust openings of the suction chamber air guide are, which means that the vapors over substantially the entire width of the exhaust duct is blown out mixed with the cooling air.

Nachfolgend ist anhand schematischer Darstellungen ein Ausführungsbeispiel des erfindungsgemäßen Backofens beschrieben. Below is an embodiment of the invention based on schematic representations Oven described.

Es zeigen:

Fig. 1
in einer Seitenansicht teilweise in einer Schnittdarstellung den Deckwandbereich der Backofenmuffel des Backofens, und
Fig. 2
in einer Ansicht von oben in verkleinertern Maßstab eine stark vereinfachte Schnittdarstellung entlang der Linie II-II in Fig. 1.
Show it:
Fig. 1
in a side view, partly in a sectional view, the top wall area of the oven muffle of the oven, and
Fig. 2
in a view from above on a reduced scale a greatly simplified sectional view along the line II-II in Fig. 1st

Ein Backofen weist eine frontseitig offene Backofenmuffel 1 auf, die durch eine angelenkte Tür verschließbar ist. Der Backofenmuffel 1 sind an sich bekannte Heizelemente zum Beheizen des Garraums zugeordnet. Weiterhin ist die Backofenmuffel 1 umgeben von einem an sich bekannten Gehäuse des Backofens (nicht gezeigt). Oberhalb einer Deckwand 3 ist eine Backofenisolation 5 angeordnet, die im wesentlichen allseitig die Backofenmuffel 1 umgibt. In der Deckwand 3 der Backofenmuffel 1 ist eine Wrasenöffnung 7 ausgebildet, in der ein metallisches Filtergehäuse 9 gehaltert ist. Das Filtergehäuse 9 weist einen topfförmigen Gehäuseboden 11 und einen damit verbundenen Gehäusedeckel 13 auf. In dem Filtergehäuse 9 ist ein als Filter 15 dienendes Metallgestrick angeordnet. Der Gehäuseboden 11 und der Gehäusedeckel 13 weisen geeignete Öffnungen zum Ziehen des Wrasens aus der Backofenmuffel 1 durch das Filter 15 auf. Oberhalb der Backofenisolation 5 der Backofenmuffel 1 ist eine mehrteilige Lüftereinheit 17 gehaltert. Deren Grundblech 19 ist an der Backofenisolation 5 bzw. dem Gehäuse der Backofenmuffel 1 befestigt. Im Bereich der Wrasenöffnung 7 besitzt das Grundblech 19 einen geeignet nach unten gezogenen Grundblechtopf 20 mit entsprechenden Ansaugöffnungen. An dem Grundblechtopf 20 ist der Gehäusedeckel 13 des Filtergehäuses 9 befestigt. Auf dem sich in Strömungsrichtung nach vorne trichterförmig erweiternden Grundblech 19 (Fig. 2) sitzt eine entsprechend gestaltete Luftschachthaube 21 (Fig. 1). In der dazwischen ausgebildeten Luftkammer ist vertikal stehend ein an sich bekannter Lüftermotor 23 mit einer Motorwelle 25 gehaltert. Dazu ist der Lüftermotor 23 auf die Deckwand eines Spiralgehäuses 27 verschraubt. Zur Positionierung des Lüftermotors 23 relativ zu der Wrasenöffnung 7 und einer Kühlluftansaugöffnung 28 der Luftschachthaube 21 weist das Spiralgehäuse 27 erste Zentrierstifte 29 und zweite Zentrierstifte 31 auf. Die ersten Zentrierstifte 29 des Spiralgehäuses 27 sitzen in entsprechenden Öffnungen des Grundblechs 19. Die zweiten Zentrierstifte 31 des Spiralgehäuses 27 sitzen in entsprechenden Öffnungen der Luftschachthaube 21. Durch das dicht auf dem Grundblech 19 sitzende Spiralgehäuses 27 ist im Bereich der Wrasenöffnung 7 eine lediglich frontseitig offene Wrasensaugkammer 33 gebildet (Fig. 1, 2).An oven has an oven muffle 1 which is open at the front and which is articulated by an articulated Door is lockable. The oven muffle 1 are known heating elements assigned to heat the cooking space. Furthermore, the oven muffle 1 is surrounded from a known housing of the oven (not shown). Above one Cover wall 3, an oven insulation 5 is arranged, which essentially on all sides Oven muffle 1 surrounds. In the top wall 3 of the oven muffle 1 there is a vapor opening 7 formed in which a metallic filter housing 9 is held. The filter housing 9 has a cup-shaped housing base 11 and an associated one Housing cover 13 on. In the filter housing 9 is a metal mesh serving as a filter 15 arranged. The housing base 11 and the housing cover 13 have suitable Openings for pulling the vapors out of the oven muffle 1 through the filter 15 on. Above the oven insulation 5 of the oven muffle 1 is a multi-part Fan unit 17 held. The base plate 19 is on the oven insulation 5 or attached to the housing of the oven muffle 1. Has in the area of the vapor opening 7 the base plate 19 a suitably pulled down base plate pot 20 with corresponding Suction openings. The housing cover 13 is on the base plate pot 20 the filter housing 9 attached. On which is funnel-shaped in the direction of flow expanding base plate 19 (FIG. 2) sits a correspondingly designed air duct hood 21 (Fig. 1). In the air chamber formed between them is vertical standing a fan motor 23 known per se with a motor shaft 25. To the fan motor 23 is screwed onto the top wall of a volute casing 27. For Positioning of the fan motor 23 relative to the vapor opening 7 and a cooling air intake opening 28 of the air shaft hood 21, the spiral housing 27 has first centering pins 29 and second centering pins 31. The first centering pins 29 of the volute 27 sit in corresponding openings in the base plate 19. The second Centering pins 31 of the volute casing 27 are seated in corresponding openings in the air duct hood 21. Through the spiral housing 27, which sits tightly on the base plate 19 is in the area of the vapor opening 7 a vapor suction chamber which is only open at the front 33 formed (Fig. 1, 2).

Oberhalb des Lüftermotors 23 ist in der Luftschachthaube 21 eine Kühlluftsaugkammer 35 gebildet. Beide Saugkammern 33 und 35 münden in einen nach vorne offenen und sich trichterförmig erweiternden Ausblaskanal 36, der deck- und bodenseitig durch das Grundblech 19 und die Luftschachthaube 21 begrenzt ist. Oberhalb des Lüftermotors 23 weist die Luftschachthaube 21 die kreisförmige Kühlluftansaugöffnung 28 auf, die durch einen Kammerring 37 begrenzt ist. Die der angesaugten Kühlluft zugewandte Stirnseite des Ringes 37 ist dabei strömungstechnisch günstig abgerundet gestaltet. Im freien Öffnungsquerschnitt dieses Kammerrings 37 sitzt mit der Motorwelle 25 verbunden ein Axiallüfterrad 39 zum Ansaugen der erwärmten Kühlluft, die zwischen dem Gehäuse des Backofens und der Backofenmuffel 1 strömt. Dem Axiallüfterrad 39 gegenüberliegend ist an der Motorwelle 25 des Lüftermotors 23 ein Radiallüfterrad 41 befestigt. Beim Betrieb des Lüftermotors 23 zieht das geeignet dimensionierte Radiallüfterrad 41 aus der Backofenmuffel 1 durch den Filter 15 wrasenhaltige warme Luft in das Spiralgehäuse 27 (Pfeile in Fig. 1). Der Wrasen wird dann im wesentlichen horizontal aus einen Wrasenausblasöffnung 43 des Spiralgehäuses 27 in den Ausblaskanal 36 gedrückt. Zugleich saugt das Axiallüfterrad 39 erwärmte Kühlluft in das Sauglüftergehäuse 19, 21 und drückt es am Lüftermotor 23 vorbei in den Ausblaskanal 36 (Pfeile in Fig. 1). Dabei umströmt die Kühlluft im wesentlichen allseitig das Spiralgehäuse 27 zu dessen Abkühlung.A cooling air suction chamber is located in the air shaft hood 21 above the fan motor 23 35 formed. Both suction chambers 33 and 35 open into a front open and expanding funnel-shaped blow-out channel 36, the top and bottom side through the Base plate 19 and the manhole cover 21 is limited. Above the fan motor 23, the air shaft hood 21 has the circular cooling air intake opening 28 which is limited by a chamber ring 37. The one facing the sucked cooling air The end face of the ring 37 is fluidly rounded in terms of flow. In the free opening cross section of this chamber ring 37 is connected to the motor shaft 25 an axial fan 39 for sucking in the heated cooling air between the The housing of the oven and the oven muffle 1 flows. Opposite the axial fan wheel 39 is a radial fan wheel 41 on the motor shaft 25 of the fan motor 23 attached. When the fan motor 23 is operating, the suitably dimensioned radial fan wheel pulls 41 out of the oven muffle 1 through the filter 15 warm vapors Air into the volute 27 (arrows in Fig. 1). The vapor then becomes essentially horizontally from a vapor outlet opening 43 of the spiral housing 27 into the outlet duct 36 pressed. At the same time, the axial fan 39 draws heated cooling air into it Suction fan housing 19, 21 and presses it past the fan motor 23 into the exhaust duct 36 (arrows in Fig. 1). The cooling air essentially flows around the volute casing on all sides 27 to cool it down.

Im Bereich des Überganges von den Saugkammern 33, 35 zum Ausblaskanal 36 sind - mehrere Luftleitrippen 45 angeordnet (nur in Fig. 2 dargestellt), die das Vermischen des Wrasens mit der Kühlluft verbessern. Weiterhin sind diese Rippen 45 derart angeordnet und gestaltet, daß sie das Gemisch aus Wrasen und Kühlluft über die gesamte Breite des Ausblaskanals 36 verteilen. Dieses Gemisch tritt dann aus einer frontseitigen Kanalöffnung 47 des Ausblaskanals 36 im Bereich eines Backofenflansches 49 über im wesentlichen dessen gesamte Breite oberhalb der Muffelöffnung (Figur 2) ins Freie.In the area of the transition from the suction chambers 33, 35 to the blow-out duct 36, a plurality of air guide fins 45 are arranged (only shown in FIG. 2), which are responsible for the mixing of the vapor with the cooling air. Furthermore, these ribs 45 are arranged in this way and designed to keep the mixture of vapors and cooling air throughout Distribute the width of the blow-out duct 36. This mixture then emerges from a front Duct opening 47 of the blow-out duct 36 in the region of an oven flange 49 over essentially its entire width above the muffle opening (FIG. 2) Free.

Claims (6)

Backofen mit einer Backofenmuffel, in deren Wand eine Wrasenöffnung vorgesehen ist, auf die ein Sauggehäuse mit zwei voneinander getrennten Saugkammern gesetzt ist, in denen ein Wrasenlüfterrad und ein Kühlluftlüfterrad eines gemeinsamen Lüftermotors angeordnet sind, wobei die Wrasensaugkammer mit der Backofenmuffel zum Absaugen und Ausblasen des Wrasens in Verbindung steht und die Kühlluftsaugkammer mit dem Gehäuseraum des Backofens zum Ansaugen und Ausblasen der den Gehäuseraum durchströmenden Kühlluft in Verbindung steht, und wobei beide Saugkammern druckseitig zumindest in einen Ausblaskanal münden, dadurch gekennzeichnet, daß der Lüftermotor (23) zwischen den beiden Lüfterrädern (39, 41) in dem Sauggehäuse (19, 21) angeordnet ist.Oven with an oven muffle, in the wall of which a vapor opening is provided, onto which a suction housing with two separate suction chambers is placed, in which a vapor fan wheel and a cooling air fan wheel of a common fan motor are arranged, the vapor suction chamber with the oven muffle for extracting and blowing out the vapor is connected and the cooling air suction chamber is connected to the housing space of the oven for sucking in and blowing out the cooling air flowing through the housing space, and wherein both suction chambers discharge at least into one blow-out duct on the pressure side, characterized in that the fan motor (23) between the two fan wheels (39 , 41) is arranged in the suction housing (19, 21). Backofen nach Anspruch 1, dadurch gekennzeichnet, daß das Kühlluftlüfterrad (39) aus Kunststoffmaterial ist.Baking oven according to claim 1, characterized in that the cooling air fan wheel (39) is made of plastic material. Backofen nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Lüftermotor (23) im Kühlluftstrom angeordnet ist.Baking oven according to claim 1 or 2, characterized in that the fan motor (23) is arranged in the cooling air flow. Backofen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Lüftermotor (23) auf einer Trennwand (27) der beiden Saugkammern (33, 35) gehaltert ist.Baking oven according to one of the preceding claims, characterized in that the fan motor (23) is held on a partition (27) of the two suction chambers (33, 35). Backofen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Ausblaskanal (36) in Ausblasrichtung trichterförmig bis etwa auf die Breite der Backofenmuffel (1) erweitert ist.Oven according to one of the preceding claims, characterized in that the blow-out channel (36) is funnel-shaped in the blow-out direction up to approximately the width of the oven muffle (1). Backofen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß im Bereich der Ausblasöffnungen der Saugkammern Luftleitmittel (45) vorgesehen sind, wodurch der Wrasen über im wesentlichen die gesamte Breite des Ausblaskanals (36) verteilt ausgeblasen wird.Baking oven according to one of the preceding claims, characterized in that air guiding means (45) are provided in the area of the blow-out openings of the suction chambers, as a result of which the vapor is blown out over essentially the entire width of the blow-out channel (36).
EP99104380A 1998-03-09 1999-03-04 Baking oven with suction casing Expired - Lifetime EP0942235B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19810047 1998-03-09
DE19810047 1998-03-09

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EP0942235A1 true EP0942235A1 (en) 1999-09-15
EP0942235B1 EP0942235B1 (en) 2003-11-05
EP0942235B2 EP0942235B2 (en) 2007-12-26

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EP99104295A Expired - Lifetime EP0949457B1 (en) 1998-03-09 1999-03-03 Cooking appliance with an exhaust air duct
EP99104380A Expired - Lifetime EP0942235B2 (en) 1998-03-09 1999-03-04 Baking oven with suction casing

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EP99104295A Expired - Lifetime EP0949457B1 (en) 1998-03-09 1999-03-03 Cooking appliance with an exhaust air duct

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EP (2) EP0949457B1 (en)
DE (2) DE59902616D1 (en)
ES (2) ES2184362T3 (en)

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EP1004826A2 (en) * 1998-11-26 2000-05-31 AEG Hausgeräte GmbH Oven with cooling and removing fumes system
ITTO20130847A1 (en) * 2013-10-18 2015-04-19 Indesit Co Spa DOMESTIC COOKING APPLIANCE
ITTO20130849A1 (en) * 2013-10-18 2015-04-19 Indesit Co Spa DOMESTIC COOKING APPLIANCE
ITTO20130852A1 (en) * 2013-10-18 2015-04-19 Indesit Co Spa DOMESTIC COOKING APPLIANCE
EP3012537A1 (en) * 2014-10-23 2016-04-27 Electrolux Appliances Aktiebolag Kitchen oven comprising an airflow propelled fan wheel
US9534794B2 (en) 2009-03-16 2017-01-03 Whirlpool Corporation Convection cooking appliance with circular air flow system
EP1892479A3 (en) * 2006-08-21 2017-11-01 BSH Hausgeräte GmbH Cooking device

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ES2184362T3 (en) * 1998-03-09 2003-04-01 Bsh Bosch Siemens Hausgeraete COOKING DEVICE WITH A VENTILATION DUCT.
DE102010042206B4 (en) 2010-10-08 2022-06-30 BSH Hausgeräte GmbH Air guiding device for a cooking appliance and method for assembling an air guiding device
CN103363563B (en) * 2013-06-21 2016-05-25 宁波方太厨具有限公司 A kind of lampblack absorber and control method thereof

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1004826A3 (en) * 1998-11-26 2001-09-12 AEG Hausgeräte GmbH Oven with cooling and removing fumes system
EP1004826A2 (en) * 1998-11-26 2000-05-31 AEG Hausgeräte GmbH Oven with cooling and removing fumes system
EP1892479A3 (en) * 2006-08-21 2017-11-01 BSH Hausgeräte GmbH Cooking device
US9534794B2 (en) 2009-03-16 2017-01-03 Whirlpool Corporation Convection cooking appliance with circular air flow system
US10962235B2 (en) 2009-03-16 2021-03-30 Whirlpool Corporation Convection cooking appliance with circular air flow system
US10190783B2 (en) 2009-03-16 2019-01-29 Whirlpool Corporation Convection cooking appliance with circular air flow system
ITTO20130852A1 (en) * 2013-10-18 2015-04-19 Indesit Co Spa DOMESTIC COOKING APPLIANCE
WO2015056206A1 (en) * 2013-10-18 2015-04-23 Indesit Company S.P.A. Household cooking appliance
CN105814366A (en) * 2013-10-18 2016-07-27 盈得喜股份有限公司 Household cooking appliance
US20160273780A1 (en) * 2013-10-18 2016-09-22 Whirlpool Corporation Household cooking appliance
WO2015056208A1 (en) * 2013-10-18 2015-04-23 Indesit Company S.P.A. Household cooking appliance
WO2015056207A1 (en) * 2013-10-18 2015-04-23 Indesit Company S.P.A. Household cooking appliance
EP3058282B1 (en) 2013-10-18 2018-09-26 Whirlpool EMEA S.p.A Household cooking appliance
ITTO20130849A1 (en) * 2013-10-18 2015-04-19 Indesit Co Spa DOMESTIC COOKING APPLIANCE
US10260759B2 (en) 2013-10-18 2019-04-16 Whirlpool EMEA S.p.A Household cooking appliance
US10260758B2 (en) 2013-10-18 2019-04-16 Whirlpool Emea S.P.A. Household cooking appliance
ITTO20130847A1 (en) * 2013-10-18 2015-04-19 Indesit Co Spa DOMESTIC COOKING APPLIANCE
US11092344B2 (en) 2013-10-18 2021-08-17 Whirlpool Emea S.P.A. Household cooking appliance
EP3012537A1 (en) * 2014-10-23 2016-04-27 Electrolux Appliances Aktiebolag Kitchen oven comprising an airflow propelled fan wheel

Also Published As

Publication number Publication date
DE59907586D1 (en) 2003-12-11
EP0942235B2 (en) 2007-12-26
DE59902616D1 (en) 2002-10-17
ES2184362T3 (en) 2003-04-01
EP0942235B1 (en) 2003-11-05
EP0949457B1 (en) 2002-09-11
EP0949457A1 (en) 1999-10-13
ES2210875T3 (en) 2004-07-01

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