EP2444737A1 - Device for blowing vapour out of a cooking device and cooking device with such a device - Google Patents

Abstract

The device has an exhaust duct (22) formed between an air duct cover (14) and an exhauster base plate (8). The duct includes a front-sided outlet (33) arranged above a door (4) of a cooking appliance (1). The door is inwardly ventilated between two partial elements (44, 45). A ramp (25) is formed at the outlet and produces an air flow to the outlet, where the air flow flows at an upper side (47) of the door. Air from interior (46) of the door is sucked by the air flow over an opening (48) in the upper side of the door. A flow nozzle is formed by the ramp and geometry of the outlet. A metallic lid part (29) is arranged at the front-sided outlet.

Description

The invention relates to a device for blowing out fumes and / or cooling air from a cooking appliance, with a fan base plate. The device comprises an exhaust duct, which is covered by an air duct cover, and at least partially formed between the duct cover and the fan base plate. Furthermore, the invention comprises a cooking appliance, in particular an oven, with such a device.

A cooking appliance with a corresponding Wrasenkanal is from the DE 102 22 878 A1 known.

Furthermore, it is provided in known exhaust ventilation devices in cooking appliances that these duct openings are made entirely of plastic and extend to the front end of the exhaust duct, so that they virtually form the front end of this exhaust duct at the exhaust port. Since in the operation of the cooking appliance, the media to be bled from the air and the vapors are relatively hot, the plastic manhole covers are deformed due to the effect of temperature. As a result, the cross section changes at the exhaust opening of the exhaust duct. This leads to undesirable air currents and noise. Due to these shape distortions, the direction of the blowout of the vapor is changed to the effect that a switch front and the appliance door of the cooking appliance is correspondingly heated and heated. This is undesirable and, if appropriate, may also lead to undesired fogging and to a functional impairment of said components due to the influence of temperature and / or the moisture present in the steam to be exhausted.

It is an object of the present invention to provide a device for blowing out vapors on a cooking appliance and such a cooking appliance, in which or in which the air outflow at the outlet of the exhaust air duct can be functionally used in the cooking appliance.

This object is achieved by a device having the features of claim 1, and a cooking appliance having the features of claim 12.

A device according to the invention for blowing out vapors from a cooking appliance comprises a fan bottom plate and an exhaust air duct, which is covered by an air shaft cover. The exhaust duct is at least partially formed between the duct cover and the fan bottom plate. The exhaust duct has a front outlet, which is arranged above a door of the cooking appliance, which is internally ventilated between at least two sub-elements of the door. At the front outlet, a ramp reducing the flow cross-section of the exhaust air duct is formed, through which an airflow flowing past an upper side of the door can be generated at the outlet, through which air can be sucked out of the interior of the door by means of the air flow via an opening in the upper side. Thus, a multifunctional suction device for a cooking appliance is provided, which on the one hand ensures the suction of vapor from the garraum and also automatically allows the venting of the door closing the cooking chamber. Fluidically, the arrangement of the outlet and the ramp is designed so that the outflowing air unfolds such a direction and effect that it is additionally coupled during discharge from the cooking fluidly with the ventilation device of the door and in a defined way with hot air from the door and dissipates.

In particular, a flow nozzle is formed by the shape of the ramp and / or the position of the ramp and / or the geometry of the outlet.

Preferably, the outlet is arranged so that the air flow overflows substantially horizontally across the opening in the top of the door. The fluidic coupling is then particularly effective.

In particular, the front edge of the outlet is located farther back or further in the cooking appliance than the opening in the door.

In particular, the door comprises as partial elements at least an outer pane and an inner pane, which are spaced from each other, so that therebetween Airspace forms. It can also be formed at least one further disc as a washer between the inner and the outer pane. Preferably, at the bottom of the door air can flow into the space or spaces between the panes of the door. Due to the air flow in the door, it is specifically cooled. The discharge of this air into the door is particularly metered and precisely achieved by the air flow from the exhaust duct, whereby the thermal management of the door can be improved.

At a front outlet of the exhaust duct a hood part of metal is arranged, which adjoins the extension of the air duct cover front side of the duct cover.

Thus, in particular, a hood part is formed as a component adjoining a front edge of the air duct cover towards the front, which forms the front end of the outlet, in particular of the exhaust air duct. The front end of the exhaust duct, from which then the vapors are blown out, is therefore no longer formed in particular by an air duct cover formed up to and from this front end. Rather, there is another separate component arranged in the form of the hood part, which is formed in view of its material configuration even at relatively high temperature influences from a dimensionally stable material. Unwanted shape distortions just at this front edge and the front outlet can be prevented, so that distorted Luftausströmungen can be avoided.

In particular, a hood part is provided which remains dimensionally stable even at high temperature influences, which can be up to 150 ° C., for example, such that undesirable air flow distortions do not occur.

In particular, an arrangement of the components is thus created in which the duct cover no longer forms the front end of the exhaust duct.

Rather, a particular embodiment is provided in which the air duct cover is arranged offset with its front end and its front edge to the rear and is extended towards the front quasi by the hood part.

According to a preferred embodiment, the ramp is formed as a separate part. As a result, it is possible to generate different suction effects for the door essentially solely by exchanging this part.

In particular, the device comprises the fan base plate, in which a recess for a vapor channel is formed. In addition, the device also includes, in particular, a vapor channel cover with which the depression is covered. The device has the exhaust duct, which is covered by the duct cover. The exhaust duct is thus at least partially formed between the duct cover and the vapor duct cover.

Preferably, the outlet is limited at the top and the vertical sides by the hood part. The hood part is thus virtually formed as a pot-like component or roof-like component, which has an inverted U-shape in cross section.

By this embodiment, the torsional rigidity of the leading edge is achieved in a particularly advantageous manner and it is achieved both on the horizontal upper edge and on the vertical side edges a desired dimensional stability. As a result, undesirable deformations can virtually be avoided over the entire cross section.

Preferably, the hood part is formed on a front upper edge at least partially with an edge reinforcement. By such an additional component, the above-mentioned advantages with regard to the gain of the front outlet in terms of dimensional stability is particularly well met.

Preferably, the edge reinforcement is a fold strip. In particular, it is provided in this context that the hood part is a one-piece component and the folded strip is virtually a bent front portion of the hood part.

In particular, the folded strip is bent outward with respect to the cross-sectional geometry of the hood part. This means that it is virtually bent to the outside of the top of the hood part. As a result, the portion of the hood part which determines the cross section of the exhaust air duct is not restricted with regard to its cross-sectional geometry. In addition, through the specific positioning and

Environment also undesirable air turbulence and air flow distortions are avoided.

It is particularly advantageous that the folded strip is bent so that it extends parallel to the upper side of the hood part, in particular at least partially rests on it. By this mechanical contact, the mechanical stability can be further improved and beyond a very flat-building hood part are formed.

It is preferably provided that the air shaft cover is made of plastic. As a result, the advantages gained can be achieved in terms of simple and cost-effective production as an injection molded part as well as in terms of the lowest possible weight.

Since the additional hood part of the critical with respect to the deformation front outlet of the exhaust duct is not formed by the duct cover and thus in the rear recessed area of the exhaust duct this problem is not given, the duct cover of the device according to the invention may continue to be provided of plastic and thus enable associated benefits.

Preferably, the duct cover is formed on a hood part facing the front edge with an insertion and with a stop edge. This is a particularly advantageous embodiment, since thus quasi in extension of the duct cover, the hood part can be arranged mechanically stable and positionally secure to the duct cover and connected to this or can be plugged together. In addition, thus no unwanted interruption of the exhaust duct is completed and thus there are no unwanted slots through which the exhaust air or the vapor can escape at undesirable locations of the exhaust duct. Through this quasi-ineinanderführung the air duct cover with the hood part a certain seal is achieved in this regard.

Last but not least, a quasi flush transfer of the air duct cover in this design with respect to shape and geometric design be reached the hood part, so that no edges or steps in the interior of the exhaust duct arise here in view of the desired flow conditions.

Preferably, the Einführflansch is designed for accurate insertion into the hood part and in the assembled state of the hood part with the duct cover a rear edge of the hood part abuts against the stop edge of the duct cover. Thus, the fully assembled state can be easily and reliably detected during assembly and the positionally secure arrangement of the components can be ensured. In particular, it is provided in this context that the inner sides of the hood part and the duct cover in this assembled state are flush over each other. In particular, this may also be provided for the outer sides, in particular on the upper side of the hood part and the duct cover.

It is preferably provided that a ramp that rises towards the outlet is formed on an upper side of the vapor channel cover facing the air shaft cover. It is a particularly advantageous embodiment, since a certain Venturi effect can be generated during the outflow and thus a nozzle functionality of the exhaust air duct is ensured at this front outlet. According to a further embodiment, provision can be made for a ramp which increases towards the outlet to be formed at a front end of the fan base plate. Again, the above-mentioned corresponding advantages can be achieved.

In both alternative embodiments, it is preferably provided that the ramp extends substantially over the entire width of the vapor channel cover. This allows a particularly uniform generation of the nozzle effect over the entire flow cross-section.

The ramp forms a quasi edge with a wedge shape in cross section.

According to an advantageous embodiment, it is provided that in the assembled state of the device and thus in particular the said components fan bottom plate, hood part and vapor duct cover the ramp is at least partially disposed in the vertical direction, directly below the hood part. This is the result addressed nozzle functionality formed in a particularly technically advantageous manner at the front outlet of the exhaust duct.

It can also be provided that the hood part is integrated in the fan base plate. In particular, the fan base plate is then integrally formed and in particular made of metal. As a result, a component-reduced design of the device can be achieved. Last but not least, the assembly effort can be reduced as a result. In particular, unwanted position tolerances between the hood part and the fan base plate can thereby be avoided, which in turn has a positive effect on the flow conditions.

In a further embodiment, however, it can also be provided that the hood part is designed as a completely separate component for the fan base plate, the vapor channel cover and the air shaft cover.

Preferably, the components can be at least partially connected by connectors in slots with each other.

In a further embodiment it can be provided that the hood part is integrally formed on the upper side of the vapor channel cover. Again, then a one-piece design is provided in particular of metal. The advantages mentioned, as they were already mentioned in the embodiment in which the hood part is integrated in the fan base plate, are analogous here.

In particular, the components of the fan base plate, vapor duct cover and air duct cover are three separate components.

In particular, the air duct cover is made of plastic, the advantages of appropriate mounting options, such as Anschraubdome, snap hooks, etc. can be maintained. In particular, the Wrasenkanalabdeckung is designed so that the necessary contour for generating the Venturi effect is ensured, especially when the hood part is integrated on the top of Wrasenkanalabdeckung. In this regard, then the nozzle function for the exhaust duct is met.

Another advantage is the fact that the components formed from sheet metal, in particular the hood part and the fan base plate and in particular the Wrasenkanalabdeckung are modifiable and assigned for different device classes or device types and can not be confused in the production.

Further features of the invention will become apparent from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or in the figures alone can be used not only in the respectively specified combination but also in other combinations or in isolation, without the scope of To leave invention.

Fig. 1

eine frontseitige Ansicht eines Ausführungsbeispiels eines erfindungsgemäβen Gargeräts;

Fig. 2

eine schematische Schnittdarstellung des Gargeräts gemäß Flg. 1;

Fig. 3

eine Explosionsdarstellung eines ersten Ausführungsbeispiels einer erfindungsgemäßen Vorrichtung zur Ausblasung von Wrasen aus dem Gargerät gemäß Fig. 1;

Fig. 4

eine vergrößerte Darstellung eines Teilausschnitts der Vorrichtung gemäß Fig. 3 in noch separiertem Zustand von Bauteilen;

Fig. 5

eine Teilausschnittdarstellung gemäß Fig. 4 im zusammengesetzten Zustand der Bauteile in Fig. 4;

Fig. 6

eine Explosionsdarstellung eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Vorrichtung; und

Fig. 7

eine Explosionsdarstellung eines nochmals weiteren Ausführungsbeispiels einer erfindungsgemäßen Vorrichtung.

Embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:

Fig. 1

a front view of an embodiment of a erfindungsgemäβen cooking appliance;

Fig. 2

a schematic sectional view of the cooking appliance according to Flg. 1;

Fig. 3

an exploded view of a first embodiment of an apparatus according to the invention for the discharge of vapor from the cooking appliance according to Fig. 1 ;

Fig. 4

an enlarged view of a partial section of the device according to Fig. 3 in still separated state of components;

Fig. 5

a partial view according to Fig. 4 in the assembled state of the components in Fig. 4 ;

Fig. 6

an exploded view of another embodiment of a device according to the invention; and

Fig. 7

an exploded view of yet another embodiment of a device according to the invention.

In the figures, identical or functionally identical elements are provided with the same reference numerals.

In Fig. 1 is in a front view designed as a baking oven 1 cooking appliance and thus shown as a domestic appliance for preparing food. The oven 1 comprises a cooking chamber 2 which is bounded by walls of a muffle 3. On the front side, the muffle 3 has a loading opening, which can be closed by a door 4. Above the door 4, an operating device 5 is formed, which may have operating elements and a display unit. Both the position of the operating device and the number, the position and the shape and the functionality of the controls and the display unit is merely exemplary.

In addition, the oven 1 comprises a merely symbolized by a block image device 6 for blowing fumes from the oven. 1

During operation of the oven 1 2 corresponding vapors form in the cooking chamber, which are then sucked out of the cooking chamber 3. For this purpose, a blower is provided with which this suction takes place from the cooking chamber 2. Only through components of the device 6 is then a blowing through a gap or more column 7, which are formed above the door 4 and below the control panel of the operating device 5, performed. Again, it can be provided that this front-side blowing of the vapors can also be done in addition to other places or instead at other locations of the oven 1.

In Fig. 2 is a simplified and schematic sectional view of the cooking appliance 1 according to Fig.1 shown along the section line II-II. The door 4 has an outer door panel 44 and a spaced apart inner door panel 45. In between, an air space or free space 46 is formed. The door 4 may also have at least one intermediate disc. The door 4 is ventilated and has for this purpose a ventilation device. This allows air to enter the door 4, in particular on a bottom according to the arrow shown. On an upper side 47 of the door 4, an opening 48 is formed, via which the air flow P2 in the door 4 can escape again. The openings at the top and bottom can be closed with flaps.

As shown in the further in the Fig. 3 to 7 Device 6 explained in more detail with an exhaust air duct 22 with which vapors extracted from the cooking chamber 2 are conveyed out of the cooking appliance 1. A front end of an outlet 33 of the exhaust duct is set back and thus positioned behind the opening 48 of the door 4. Furthermore, the outlet 33 opens just above the opening 48. An air flow P1 flowing out of the outlet 33 thus flows very directionally almost horizontally over the door 4. This is achieved by a ramp 25 at the outlet 33. By the air flow P1 is automatically and defined the air in the free space 46 is sucked out of the door 4. Thus, a nozzle effect is generated by the ramp 25 at the outlet 33, which allows the fluidic coupling for sucking the air flow P2 from the door 4 with the air flow P1.

In Fig. 3 an exploded view of components of the device 6 is shown. The device 6 comprises a fan base plate 8, which is integrally formed from sheet metal and shaped and embossed accordingly. The fan base plate 8 is arranged outside of the cooking chamber 2 and above a ceiling wall 9 of the muffle 3, wherein in particular still appropriate insulating and insulating material can be arranged therebetween. The fan base plate 8 has a recess 10 in which a hole 11 is present. About this hole 11 are sucked out of the cooking chamber 2 by means of a blower, not shown, which is positioned in the region 12. In this regard, a vapor channel 10a is formed.

The device 6 further comprises a vapor channel cover 13, which is also formed in the embodiment of metal and represents a metal plate.

In addition, the device 6 comprises an air duct cover 14, which is made as a one-piece component made of plastic. The air duct cover 14 has a front part 15, which is hood-shaped in cross section. On an inner side 16 corresponding webs 17, 18, 19 and 20 are formed. These are oriented in the direction of flow.

In the assembled state of in Fig. 3 shown components of the device 6, an exhaust duct 22 is formed between an upper side 21 of the vapor channel cover 13 and the portion 15 of the duct cover 14.

In a rear portion 23 of the duct cover 14, a housing part is formed, which covers the fan, not shown, in particular the fan wheel. By the Blower is, as already mentioned, an extraction of vapors from the cooking chamber 2 via the hole 11 and the vapor channel 10 a generated and it continues to take place then a blowing of these vapors via the exhaust duct 22 to the front.

In the exemplary embodiment shown, it is provided that a ramp 25 extends on the upper side 21 of the integrally formed vapor channel cover 13 in the front region 24 substantially over the entire width (x direction). The ramp 25 shows in terms of their shape in cross-section from its rear end 26 to its front end 27 increasing or thickening profile. The ramp 25 is formed over the entire width at the respective locations in the z-direction in each case with the same height.

In the embodiment shown it is provided that the fan base plate 8 has at its front end 28 a hood part 29, which is formed in one piece and is formed integrally with the fan base plate 8. It is thus integrated in the fan base plate. This hood part 29 is formed of metal and represents a sheet metal part. It is designed in cross-section (x-y plane) with an inverted U-profile. In the assembled state, the vapor channel cover 13 is arranged on the fan base plate 8, so that the ramp 25 is located under the hood part 29. As can be seen, the hood part 29 has a depth in the z-direction that is substantially smaller than the width in the x-direction. In addition, it is provided that the hood part 29 has an edge edge reinforcement 30 in the form of a folding strip 31 at a front-side upper edge 30. This is formed integrally with the hood part 29, and bent accordingly. It is bent in the direction of the upper side 32 and lies at least partially on this outer side upper side 32.

In this connection and with regard to the arrangement of the components in the assembled state, the exhaust air duct 22 is thus also formed between the upper side of the vapor channel cover 13 in the region of the ramp 25 and the hood part 29. In this area, therefore, the hood part 29 covers the exhaust duct 22 from above.

The device 6 thus virtually comprises a front outlet 33, which is formed quasi by the front side 30 of the hood part 29 and the front edge 24 of the vapor channel cover 13.

The already mentioned air duct cover 14 has an insertion flange 35 and a stop edge 36 on a front edge 34. This is formed and shaped so that in the assembled state of the components of this Einführflansch 35 engages a rear edge 37 of the hood part 29 and hineinerstreckt into the hood part 29 and this rear edge 37 rests against the stop edge 36. There is thus provided an embodiment in which the duct cover 14 no longer extends to the front outlet 33 of the exhaust duct 22, but ends set back. The hood part 29 thus forms in the z-direction the forwardly formed extension of the duct cover 14. The particular flush merging of the hood part 29 and the duct cover 14 in this regard also creates a mechanically stable connection and positioning and quasi a sealing arrangement.

With regard to the design of the hood part 29, a vertical side 38 and a further vertical side 39 are shown in addition to the upper side 32.

In Fig. 4 is an enlarged view of a portion of the device 6 according to Fig. 3 shown. In this context, the geometric shape of the ramp 25 can be seen. In addition, the folded configuration of the hood part 29 can be seen with the fold strip 31.

In Fig. 5 the assembled state of the fan bottom plate 8 with the vapor channel cover 13 is shown. It can be seen that the vapor channel cover 13 is virtually inserted into lateral insertion slots 40 of the fan base plate 8. It comes positionally lying so that the recess 10 are thus covered by the vapor channel cover 13. In addition, it can be seen that the ramp 25 is positioned under the hood part 29 and thereby virtually covered. The air duct cover 14 is shown in the illustration Fig. 4 not shown, but it would come to rest with its front edge 34, the Einführflansch 35 and the stop edge 36 at the rear edge 37 of the hood part 29.

With regard to the embodiment of the device 6 as shown Fig. 3 is there a first embodiment of the duct cover 14 is shown. In addition, it is Also shown a second embodiment of a duct cover 14 ', which could also be mounted compatible instead of the duct cover 14. Due to the different air duct covers 14 and 14 'different device classes or different types of ovens can be realized. This is to be seen in view of the particular fan to be used and, where appropriate, other requirements. With regard to the connection, a front partial area 15 'and a rear partial area 23' are also provided here. The connection with the hood part 29 is analogous to the embodiment according to the air duct cover 14, so that here also at the front edge 34, an insertion flange 35 and a stop web or a stop edge 36 are provided.

In Fig. 6 a further embodiment of a device 6 is shown in a further exploded view. Again, in turn, a fan base plate 8 as a sheet metal component, a vapor channel cover 13 is also formed as a sheet metal component and a duct cover 14 made of plastic. In contrast to the embodiment according to Fig. 3 to 5 is provided here that the hood part 29 is not integrated into the fan base plate 8, but is a separate component. It is also designed here as a sheet metal component and has the fold strip 31 on the front side upper edge 30.

As in the embodiment according to Fig. 3 to 5 Here too, the fan base plate 8, the vapor channel cover 13 and the air shaft cover 14 are separate components. Again, these can be interconnected and fixed in position by connectors and / or centering pins or the like. Accordingly, the hood part 29 with the fan base plate 8 by connectors or the like to position it.

Furthermore, it is provided here that the depression 10 extends almost to the front end 28 of the fan base plate 8. Furthermore, it is provided here that 25 slots 41, 42 and 43 are formed in the ramp, via which also an outlet of gaseous media is made possible.

Again, in turn, the ramp 25 is arranged with its front end 27 quasi at the front end of the vapor duct cover 13. Again, it extends again essentially across the entire width. With regard to the formation of the exhaust duct 22nd and the front outlet 33, this in turn according to the embodiment in FIG Fig. 3 designed. With the slots 41 and 43 an additional function is possible by means of the vapor management is additionally controlled.

In Fig. 7 an additional embodiment of the device 6 is shown in an exploded view. In this embodiment, it is provided that the ramp 25 is integrated into the fan base plate 8 and formed integrally therewith. It is also arranged here in a front-side front area. As can be seen, the recess 10 is designed so that it extends to the front edge 28 of the fan base plate 8. The ramp 25 is thus arranged in this recess 10 or quasi sunk arranged.

Furthermore, it is provided in this embodiment that the hood part 29 is integrated into the vapor channel cover 13, as shown in FIG Fig. 7 formed in the front area as a front-side conclusion. Here again, in the assembled state, it is again provided that the ramp 25 is arranged under the hood part 29, which, moreover, also in the embodiment according to FIG Fig. 6 the case is.

With regard to the connection of the hood part 29 with the duct cover 14 is based on the statements Fig. 3 and the embodiment too Fig. 6 directed.

In all embodiments, a nozzle is thus formed quasi by the shape and position of the hood part 29 and the ramp 25. The is arranged at the front outlet 33 and quasi integrated into the device 6.

In the assembled state, quasi the front-side upper edge 30, the hood part 29 and the front edge 28 form a front end region of the exhaust air duct 22 substantially at the same height in the z-direction with respect to the illustrated components of the device 6.

LIST OF REFERENCE NUMBERS

1

oven

2

oven

3

muffle

4

door

5

operating device

6

contraption

7

column

8th

Fan base plate

9

ceiling wall

10

deepening

10a

vapor duct

11

hole

12

Area

13

Wrasenkanalabdeckung

14, 14 '

Duct cover

15, 15 '

front part of the duct cover

16

Inside the duct cover

17, 18, 19,20

Stege

21

Top of the vapor duct cover

22

exhaust duct

23, 23 '

rear section of the duct cover

24

front area of the vapor duct cover

25

ramp

26, 27

end up

28

front end of the fan bottom plate

29

hood part

30

top edge

31

fold strip

32

Top of the hood part

33

front outlet

34

front edge

35

Einführflansch

36

stop edge

37

rear edge

38, 39

vertical sides

40

insertion slots

41, 42, 43

slots

44

Door outer pane

45

Door inner pane

46

free space

47

top

48

opening

P1, P2

airflows

Claims (13)

Device for blowing out vapors and / or cooling air from a cooking device (1), having a fan bottom plate (8) and an exhaust air duct (22), which is formed at least in regions between an air duct cover (14, 14 ') and the fan bottom plate (8), and which has a front outlet (33) which is arranged above a door (4) of the cooking appliance (1), which is internally ventilated between at least two partial elements (44, 45), characterized in that at the front outlet (33) a ramp (25) reducing the flow cross-section of the exhaust air duct (22) is formed, through which an air flow (P1) flowing past an upper side (47) of the door (4) can be generated at the outlet (33), through which defined via an opening ( 48) in the top (47) air from the interior (46) of the door (4) by means of the air flow (P1) is sucked. Apparatus according to claim 1, characterized in that a flow nozzle is formed by the ramp (25) and the geometry of the outlet (33). Apparatus according to claim 1 or 2, characterized in that the ramp (25) extends substantially over the entire width of the outlet (33). Device according to one of the preceding claims, characterized in that a hood part (29) made of metal is arranged on the front outlet (33) of the exhaust air duct (22), which on the front side is connected to the air duct cover (14) for extending the air duct cover (14, 14 ') , 14 ') connects. Apparatus according to claim 4, characterized in that the ramp (25) at least partially disposed under the hood part (29) and covered by the hood part (29). Device according to one of the preceding claims, characterized in that the outlet (33) is arranged so that the air flow (P1) flows over substantially horizontally through the opening (48). Device according to one of the preceding claims, characterized in that at a front end (28) of the fan base plate (8) to the outlet (33) towards increasing ramp (25) is formed. Apparatus according to claim 7, characterized in that the ramp (25) is formed as a separate part and in particular on the fan base plate (8) is attached. Device according to one of the preceding claims, characterized in that in the fan base plate (8) has a recess (10) for a vapor channel (10a) is formed, and a vapor channel cover (13) is formed, with which the recess (10) is covered, and the exhaust air duct (22) is formed at least in regions between the air shaft cover (14, 14 ') and the vapor channel cover (13) Apparatus according to claim 8 and 9, characterized in that the hood part (29) on the upper side (21) of the vapor channel cover (13) is integrally formed, in particular as a front-side completion of the vapor channel cover (13) is formed. Apparatus according to claim 9 or 10, characterized in that on one of the duct cover (14, 14 ') facing upper side (21) of the vapor duct cover (13) which is formed towards the outlet ramp (25) is formed. Device according to one of the preceding claims, characterized in that the duct slot (14, 14 ') is formed from plastic. Cooking appliance, in particular oven (1), with a device (6) according to one of the preceding claims.

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