EP2991449B1 - Cooking device - Google Patents

Description

The present invention relates to a cooking appliance with at least one housing device and at least one cooking chamber. The cooking space is associated with at least one steam generating device and at least one microwave device for heating food, the steam generating device being suitable and designed to supply the cooking space with steam, in particular by at least one steam inlet. The microwave device comprises at least one high-frequency generator which is suitable and designed to introduce high-frequency radiation at at least one entry point into the cooking chamber.

document EP-A-2 426 418 discloses a microwave oven with a steam generating device.

Cooking appliances with a steam generator, in particular steamer, offer a user the option of preparing food very gently by steam. In order to provide steam in the cooking chamber, several methods for steam generation have become known. In the internal generation of steam water is introduced into the cooking chamber and on a evaporation surface, usually on the cooking chamber floor, heated and evaporated. External steam generators, on the other hand, produce steam outside the cooking chamber and do not introduce water, but steam into the cooking chamber.

In both types of steam generation excess steam is removed from the oven and passed out of the cooking appliance. The steam should not be discharged directly from the cooking chamber into the environment in order to minimize the risk of injury to a user who could burn himself to the hot steam.

Also in the preparation of food by steam, it may be advantageous to additionally use at least temporarily microwave radiation for the cooking process. Thus, depending on the cooking process under certain circumstances an even better cooking result and / or a more comfortable cooking process can be achieved. In addition, both modes could continue to be used in a solo operation in addition to a combined operation, which makes the cooking appliance particularly flexible.

However, the source of microwave radiation, the so-called magnetron, must be well cooled during operation so that the magnetron does not overheat. For this purpose, a cooling air flow is usually used, which cools the magnetron sufficient.

This cooling air flow is then used to flush the cooking chamber with air to blow out when cooking microwave radiation resulting moisture from the oven. This would otherwise condense on the cooking chamber walls and the cooking chamber door. The guided through the oven cooling air flow then leaves the cooking appliance almost immediately.

In a combination of steam operation and microwave operation, however, there is the problem that the cooking chamber must not be flushed with air in the steam mode and that the steam must not be discharged directly from the oven into the environment. When flushing the cooking chamber with air, a sufficient amount of steam could not be made available in the cooking chamber. In addition, the hot steam would be blown almost directly from the oven into the environment.

It is therefore the object of the present invention to provide a cooking appliance with a steam generator device and a microwave device in which the microwave device is sufficiently cooled and the steam discharged from the cooking chamber leaves the cooking device sufficiently cooled.

This object is achieved by a cooking appliance with the features of claim 1. Preferred developments of the invention are the subject of the dependent claims. Further advantages and features of the invention will become apparent from the embodiments.

The cooking appliance according to the invention has at least one housing device and at least one cooking chamber, wherein the cooking chamber is assigned at least one steam generator device and at least one microwave device for heating food. In this case, the steam generating device is suitable and designed to supply the cooking chamber by at least one steam inlet with steam. The microwave device comprises at least one high-frequency generator and is suitable and designed to introduce high-frequency radiation at at least one entry point into the cooking chamber. The high-frequency generator is assigned for cooling at least one cooling air flow, which is performed at least in sections in at least one channel device. Furthermore, the cooking chamber comprises at least one steam outlet, which is guided into the cooling air flow of the high-frequency generator.

In this case, the steam outlet according to the invention is in particular directly or indirectly connected to the cooling air flow, whereby steam from the cooking chamber through the steam outlet into the cooling air flow is feasible. In this case, the steam outlet of the cooking chamber is in particular with the channel means of the cooling air flow in connection, whereby steam can be conducted from the cooking chamber into the channel device.

According to the invention, the high-frequency generator is designed in particular as a microwave generator, this being preferably made available by at least one magnetron. In this case, a specific wavelength or also a specific wavelength range with a suitable wavelength can be made available by the high-frequency generator.

The cooking appliance according to the invention offers many advantages. A significant advantage is that a Kombigargerät is provided with steam operation and microwave operation, in terms of individual modes and also in terms of a combined operation with steam and microwaves has no significant disadvantages to individual devices such as a conventional microwave and a conventional steamer.

In conventional microwave ovens, the cooling air flow of the high frequency generator is usually introduced into the cooking chamber in order to flush the cooking chamber with a sufficient volume of air per unit time. This should effectively dissipate the resulting during cooking with microwave radiation moisture from the oven to avoid condensation of moisture on the cooking chamber walls and in particular on the cooking chamber door.

However, a flushing of the cooking chamber with air is disadvantageous in a device with a steam generator device or during steam operation. If the cooking chamber also flows through air in a Kombigargerät, a sufficient volume of steam could not be made permanently available in the oven. Thus, a dew point near 100 ° C could not be achieved for a long time. As a result, the cooking operation with the steam generator device would only work limited. Therefore, in the cooking appliance according to the invention, the cooling air flow of the high-frequency generator is not passed into the cooking chamber, but is discharged at a different location from the housing device.

The problem of not drained moisture in a cooking process with microwave radiation is not given in the cooking appliance according to the invention, since a user is already used to it in a steamer that the cooking chamber still has a certain residual moisture after a Dampfgarvorgang. The cooking appliance according to the invention is in particular a steamer, which additionally has a microwave function. Thus, it is also not considered disadvantageous if the cooking chamber, for example, after a cooking process exclusively with high frequency radiation has a certain residual moisture.

If the cooking appliance is operated in steam mode, excess steam is removed from the cooking chamber through the steam outlet. This steam must not be removed directly from the cooking appliance as it could possibly injure a user in contact with the still hot steam. Therefore, according to the invention, the steam outlet of the cooking chamber is in connection with the cooling air flow of the high-frequency generator. In this, the still hot steam mixes with the air volume of the cooling air flow and is cooled to a non-critical temperature. The air mixture of steam and cooling air flow thus generated can then be blown out of the cooking appliance at a suitable location.

Preferably, the channel device comprises at least one inlet opening, which is in communication with the steam outlet of the cooking chamber. Thus, the steam outlet of the cooking chamber can preferably continue directly to the inlet opening of the cooling air flow or into the channel device of the cooling air flow.

In particular, if the steam outlet and the cooling air flow of the high-frequency generator are structurally not provided in the immediate vicinity, the steam outlet of the cooking chamber and the inlet opening of the channel device are particularly preferably connected at least in sections by at least one connecting device. So z. B. the distance between the steam outlet and the inlet opening of the channel device for the cooling air flow are connected by a suitable connecting element. Then, for example, excess steam from the steam outlet via a hose or a pipe up to the inlet opening of the channel device is performed.

In advantageous developments of the channel device is associated with at least one fan device for generating the cooling air flow, wherein the high-frequency generator is arranged downstream of the fan device in the flow direction of the cooling air flow. Such a configuration is advantageous because a significantly better and more uniform cooling of the high-frequency generator can be achieved by the arrangement of the high-frequency generator in the pressure range of the fan device.

In particularly preferred embodiments, the steam outlet of the cooking chamber is guided in the flow direction of the cooling air flow behind the high-frequency generator in the cooling air flow. In particular, the inlet opening is arranged in the channel device in the flow direction of the cooling air flow behind the high-frequency generator. This ensures that the high-frequency generator is not lapped by steam during the steam operation of the cooking appliance of moist air, which corrosion and / or other moisture-related damage to the high-frequency generator could be promoted. The steam is introduced from the cooking chamber in the flow direction behind the high-frequency generator in the channel device of the cooling air flow, so that then enriched with moisture air of the cooling air flow can be blown out of the housing device of the cooking appliance at a suitable location, preferably no technical components lapped by the air become.

Preferably, the high frequency generator is associated with at least one cooling device, which is arranged at least partially in the cooling air flow. By such a configuration, a particularly effective cooling of the high-frequency generator can be ensured. In addition, it is preferably possible that the high-frequency generator itself is not arranged in the cooling air flow, but that only the cooling device is cooled in the cooling air flow and sufficient heat is dissipated from the high-frequency generator via the cooling device.

Preferably, the free flow cross-section of the cooling air flow decreases at least in sections. Then, in particular, the free cross-section of the channel device, through which the cooling air flow is guided, decreases.

It is particularly preferred that the free flow cross section is reduced at least in the portion of the cooling air flow, in which the steam outlet of the cooking chamber is guided into the cooling air flow. In particular, the free flow area in the area is reduced by providing the inlet opening in the channel means. This results in a Venturi effect, which builds up a certain negative pressure in the direction of the steam outlet of the cooking chamber by changing the flow cross-section of the cooling air flow, whereby steam is drawn from the cooking chamber in the direction of the cooling air flow.

In expedient developments, the cooling air flow expands into at least one blow-off section. It is particularly preferred that the cooling air flow fanned out after broadening the flow cross-section, widened, flatter and wider and / or expands in another form such that the cooling air flow does not selectively leave the housing device of the cooking appliance at one point.

At least one guide device for the cooling air flow is preferably associated with the blow-off section. Thus, it is possible that the cooling air flow is preferably distributed evenly over the entire blow-out section, so that no punctiform flow peaks arise.

Particularly preferably, the blow-out section is provided at least in sections above the cooking chamber. Here, for example, offers a suitably ausgestalteter gap between the cooking chamber door and a control panel, through which the cooling air flow of the high-frequency generator can be blown.

In this case, the blow-off section particularly preferably extends over a substantial width of the housing device. In particular, it is preferred that the blow-out section is provided over the entire width of the cooking chamber and preferably over the entire width of the cooking chamber door or even over the entire width of the housing device. Such an embodiment of the blow-out section ensures that the flow velocity of the cooling air flow in the area of the blow-off section is kept as low as possible, so that a user is not disturbed by the outflowing cooling air flow, which is mixed with steam depending on the operating mode.

In preferred embodiments, the steam outlet is guided in at least one negative pressure region in the cooling air flow. Such a negative pressure range is defined in particular by a relatively higher flow velocity, as z. B. is provided by the reduction flow of the cross section in the region of the inlet opening in the channel device.

Then, particularly preferably, the negative pressure of the negative pressure region continues up to the steam outlet and preferably continues into the cooking chamber. This ensures that the negative pressure continues until the steam outlet, when no more steam is added into the cooking chamber. Then a dynamic equilibrium is created, until steam is again introduced into the cooking chamber and such an overpressure arises in the cooking chamber. The excess steam then passes through the steam outlet in the cooling air flow and is blown out of the housing device at the appropriate place.

Further advantages and features of the present invention will become apparent from the embodiments, which are explained below with reference to the accompanying figures.

Figur 1

eine rein schematische Darstellung eines erfindungsgemäßen Gargerätes in einer Ansicht von vorne;

Figur 2

eine rein schematische Darstellung des Gargerätes gemäß Figur 1 ohne Garraumtür und äußere Gehäuseblenden;

Figur 3

die Darstellung gemäß Figur 2 in einer rein schematischen Ansicht von der Seite;

Figur 4

eine leicht vereinfachte Darstellung der Ansicht gemäß Figur 2;

Figur 5

eine rein schematische Darstellung der Kanaleinrichtung in einer Ansicht von oben;

Figur 6

die Darstellung gemäß Figur 5 in einer rein schematischen Schnittansicht mit Einblick in die Kanaleinrichtung;

Figur 7

eine rein schematische Darstellung der Kanaleinrichtung in einer Seitenansicht; und

Figur 8

die Darstellung gemäß Figur 7 in einer rein schematischen Schnittansicht mit Einblick in die Kanaleinrichtung.

In the figures show:

FIG. 1

a purely schematic representation of a cooking appliance according to the invention in a view from the front;

FIG. 2

a purely schematic representation of the cooking appliance according to FIG. 1 without oven door and outer housing covers;

FIG. 3

the representation according to FIG. 2 in a purely schematic view from the side;

FIG. 4

a slightly simplified representation of the view according to FIG. 2 ;

FIG. 5

a purely schematic representation of the channel device in a view from above;

FIG. 6

the representation according to FIG. 5 in a purely schematic sectional view with an insight into the channel device;

FIG. 7

a purely schematic representation of the channel device in a side view; and

FIG. 8

the representation according to FIG. 7 in a purely schematic sectional view with an insight into the channel device.

In FIG. 1 an inventive cooking appliance is shown purely schematically in a front view. The cooking appliance 1 comprises a housing device 2, and a cooking chamber 3, wherein the feed opening 23 of the cooking chamber 3 is closed by a cooking chamber door 24. The cooking appliance 1 is designed as a Kombigargerät 100, wherein the cooking chamber 3 can be heated by means of a steam generating device 4 and / or by means of a microwave device 5.

The microwave device 5 comprises a high-frequency generator 7, which generates high-frequency radiation 25 and initiates at least one entry point 8 into the cooking chamber 3.

The high frequency generator 7 is cooled by a cooling air flow 9, not shown here, wherein this cooling air flow 9 is guided in a channel device 10. The cooling air flow 9 is then blown out of the housing device 2 via a blow-off section 18.

Above the cooking chamber 3, a control panel 26 is provided, which here has two controls 27 for controlling the cooking appliance 1. In this case, the blow-out section 18 is provided in a gap between the closed cooking chamber door 24 and the control panel 26, wherein the blow-off section 18 extends over a substantial width 20 of the housing device 2 in the embodiment shown here.

In this case, in the exemplary embodiment shown here, the blow-out section 18 is provided wider than the cooking chamber 3, with the fitting-out section 18 not extending over the entire width of the housing device 2. In other exemplary embodiments, the blow-out section 18 may, for example, also correspond to the width of the cooking chamber 3 or also extend over the complete wide housing device 2. The very broad configuration of the blow-out section 18 achieves, inter alia, that the flow velocity of the exiting cooling air flow can be designed as low as possible so that a user is not significantly disturbed or impaired by the outflowing cooling air flow.

In FIG. 2 is the cooking appliance 1 according to FIG. 1 shown in a purely schematic view, with some housing components and the cooking chamber door 24 have been omitted for better clarity, to make relevant components more visible.

The cooking appliance 1 is designed as a Kombigargerät 100 and includes a steam generator 4, which is suitable and designed to initiate steam 28 into the cooking chamber 3. Here, the steam generating device 4 is provided here as an external steam generating device 4, which produces steam outside the cooking chamber 3 from water 28 and introduces it into the cooking chamber 3. In other embodiments, an internal steam generator may be provided, in which case water is introduced into the cooking chamber and evaporated in the cooking chamber 3 at a suitable evaporation surface. In such an embodiment, then the cooking appliance 1 does not comprise at least one steam inlet 6, but a water inlet, not shown here.

The steam generator 4 is in communication with a water tank 29 and produces outside the cooking chamber 3 steam 28. This steam 28 is introduced via a plurality of steam inlets 6 in the cooking chamber 3. If a predetermined concentration of steam in the cooking chamber 3 is reached, no further steam 28 is introduced into the cooking chamber. Excess steam 28 is removed via a steam outlet 11 from the cooking chamber 3 again. In this case, the steam outlet 11 is in communication with a cooling air flow 9 of the high-frequency generator 7 of the microwave device 5.

The microwave device 5 comprises a high-frequency generator 7 which generates high-frequency radiation 25 and introduces it into the cooking chamber 3 at an entry point 8. Food in the oven 3 can then be prepared both by microwave radiation 25 or steam 28 or in a combined operation with microwave radiation 25 and steam 28.

In FIG. 3 is a purely schematic side view of a cooking chamber 3 of a cooking appliance 1 according to the invention shown purely schematically. In this case, the outer housing components have been omitted in the presentation in order to achieve a particularly clear representation.

Above the cooking chamber 3 can be seen the microwave device 5 with the high-frequency generator 7. The high-frequency generator 7 is associated with a cooling air flow 9, which is guided in a channel device 10.

Even with conventional microwave ovens, a cooling air flow is associated with the microwave generator to prevent overheating of the magnetron. However, in classical microwave ovens, this cooling air flow is introduced into the cooking chamber in order to achieve considerable flushing of the cooking chamber with air. This is desirable in conventional microwaves to dissipate moisture produced during cooking from the oven. This moisture would otherwise condense on the cooking chamber walls and in particular on the cooking chamber door, which could disturb a user.

In contrast, in the cooking appliance 1 according to the invention, the cooling air flow 9 of the high-frequency generator 7 is not introduced into the cooking chamber 3, but blown directly from the cooking appliance 1 via a blow-out section 18 above the cooking chamber.

As in FIG. 3 1, the channel device 10 has an inlet opening 12, wherein between the vapor outlet 11 and the inlet opening 12 in the embodiment shown here, a connecting device 13 is provided , This connecting device 13 is designed here as a tube 30, wherein in other embodiments, other connecting elements such. B. pipes can be used advantageously.

The excess steam 28 is introduced from the cooking chamber 3 into the cooling air flow 9 or into the channel device 10 of the cooling air flow 9. It is thus achieved that the hot steam 28 in the duct device 10 is mixed with the cooler cooling air flow 9 so that an airflow with an uncritical temperature leaves the cooking appliance 1 through the blow-off section 18. The mixing of the excess steam with cool air is necessary so that no hot steam is blown out of the cooking appliance 1 and thus could endanger a user.

In FIG. 4 is purely schematic in a front view of the microwave device 5 with the channel device 10 for the cooling air flow 9 shown. It can be seen that the duct device 10 is associated with a fan device 14, which generates the cooling air flow 9. The channel device 10 widens to a blow-out section 18, which extends over a substantial width 20 of the housing device 2 of the cooking appliance 1.

In FIG. 5 is a purely schematic plan view of the microwave device 5 and the channel device 10 is shown. In this case, the channel device 10 is associated with a fan device 14, which provides the cooling air flow 9 of the channel device 10. The fan device 14 is provided in the flow direction 15 of the cooling air flow 9 in front of the microwave device 5. Thus, the high frequency generator 7 of the microwave device 5 is in the pressure range of the fan device 14, whereby a particularly effective cooling of the high frequency generator 7 can be achieved.

In FIG. 6 is the view according to FIG. 5 shown in a purely schematic sectional view, which allows an insight into the channel device 10. In this case, one recognizes the impeller 31 of the fan device 14, which generates the cooling air flow 9 in the duct device 10. In this case, the channel device 10 in the intake region 32 to an opening, not shown here, through which the impeller 31 sucks air into the duct device 10. The cooling air flow 9 thus generated is then guided in the flow direction 15 through the duct device 10, wherein in the duct device 10 of the high-frequency generator 7 is arranged to be cooled by the cooling air flow 9.

For this purpose, the high frequency generator 7 in the embodiment shown here, a cooling device 22, which is designed here as a heat sink 33 with cooling fins 34. The heat sink 33 and in particular the cooling ribs 34 provide an increase in surface area, so that the heat generated by the high-frequency generator 7 can be transferred to the cooling air flow 9 more effectively.

In the direction of flow 15 of the cooling air flow 9 behind the high-frequency generator 7, the inlet opening 12 is provided on the underside of the channel device 10, which is connected to the steam outlet 11 of the cooking chamber 3.

In FIG. 6 It can also be clearly seen that the channel device 10 widened into the blow-out section 18, whereby guide devices 19 are provided which distribute the cooling air flow uniformly over the width 20 of the blow-out section 18.

The guide devices 19 are provided as baffles 35, which divide the air flow 9 and deflect in certain directions, so that over the entire Ausblasabschnitt 18, a substantially uniform air volume is preferably blown out in a substantially uniform speed.

The arrangement of the inlet opening 12 for steam 28 in the channel device in the direction of flow 15 behind the high-frequency generator 7 is particularly advantageous because so no humid air in contact reaches the high-frequency generator 7 or the cooling device 22, so that an undesirable corrosion can be effectively avoided here.

In FIG. 7 the duct device 10 is shown in a purely schematic side view. It can be seen that the flow cross-section 16 is reduced in the region 17 of the inlet opening 12 for the steam outlet 11. By this reduction of the cross section 16 in the region 17 of the inlet opening 12, the flow velocity is increased, whereby a certain Venturi effect on the inlet opening 12 acts.

As a result, steam 28 is sucked out of the steam outlet 11 through the connection device 13 and the inlet opening 12 into the channel device 10. Thus, the discharge of steam 28 from the cooking chamber 3 is supported.

The cross-section 16 of the channel device 10 flattened further in the direction of the Ausblasabschnitts and widens over the substantially entire width 20 of the cooking appliance 1. Thus, a very wide and flat Ausblasabschnitt 18 is provided by which particularly evenly and with a relatively small Flow rate of the cooling air flow 9 can be dissipated.

In FIG. 8 is the representation according to FIG. 7 shown in a purely schematic sectional view. Here, too, it can be seen that the flow cross section 16 in a section 17 is reduced. As a result, from this section 17 into the blow-off section, a negative-pressure region 20 is created which arises in this region due to the higher flow velocity of the cooling air flow 9.

This negative pressure area continues in the embodiment shown here through the inlet opening 12 via the connecting device 13 to the steam inlet 11 and into the cooking chamber 3. As a result, there is a dynamic pressure equilibrium as soon as no further steam 28 is supplied to the cooking chamber 3. If steam 28 is again introduced into the cooking chamber 3, an overpressure is produced at the steam outlet 11 and the excess steam 28 is pressed and drawn through the steam outlet 11 via the connecting device 13 through the inlet opening 12 into the channel device 10 and via the blow-off section 18 from the cooking appliance 1 blown out.

In the duct device 10, the steam 28 then sufficiently mixes with the cooling air flow 9, so that the cooling air flow blown out of the blow-off section 18 does not exceed a predetermined uncritical temperature.

LIST OF REFERENCE NUMBERS

1

Cooking appliance

2

housing means

3

oven

4

Steam generator device

5

microwave device

6

steam inlet

7

High-frequency generator

8th

entry point

9

Cooling air flow

10

passage means

11

steam outlet

12

inlet opening

13

connecting device

14

Fan means

15

current direction

16

Flow area

17

section

18

blowout

19

guide

20

width

21

Under pressure range

22

cooling device

23

loading port

24

oven door

25

RF radiation

26

control panel

27

operating element

28

steam

29

water tank

30

tube

31

Wheel

32

suction

33

heatsink

34

cooling fins

35

baffle

100

Kombigargerät

Claims (14)

1. Cooking appliance (1) comprising at least one housing means (2) and at least one cooking chamber (3), at least one steam generation device (4) and at least one microwave device (5) for heating food being associated with the cooking chamber (3), the steam generation device (4) being suitable and designed for supplying the cooking chamber (3) with steam, in particular by means of at least one steam inlet (6), and the microwave device (5) comprising at least one high-frequency generator (7) which is suitable and designed for introducing high-frequency radiation (25) into the cooking chamber (3) at at least one inlet point (8), at least one cooling airflow (9), which is guided at least in portions in at least one channel means (10), being associated with the high-frequency generator (7) for cooling, and characterised in that the cooking chamber (3) comprises at least one steam outlet (11) which is guided into the cooling airflow (9) of the high-frequency generator (7).
2. Cooking appliance (1) according to claim 1, characterised in that the channel means (10) comprises at least one inlet opening (12) which is connected to the steam outlet (11) of the cooking appliance (3).
3. Cooking appliance according to the preceding claim, characterised in that the steam outlet (11) of the cooking chamber (3) and the outlet opening (12) of the channel means (10) are connected at least in portions by at least one connection means (13).
4. Cooking appliance (1) according to any of the preceding claims, characterised in that at least one ventilation device (14) for generating the cooling airflow (9) is associated with the channel means (10), the high-frequency generator (7) being arranged downstream of the ventilation device (14) in the flow direction (15) of the cooling airflow (9).
5. Cooking appliance (1) according to any of the preceding claims, characterised in that the steam outlet (11) of the cooking chamber (3) is guided into the cooling airflow (9) in the flow direction (15) of the cooling airflow (9), downstream of the high-frequency generator (7).
6. Cooking appliance (1) according to any of the preceding claims, characterised in that at least one cooling device (22), which is arranged at least in portions in the cooling airflow (9), is associated with the high-frequency generator (7).
7. Cooking appliance (1) according to any of the preceding claims, characterised in that the open flow cross section (16) of the cooling airflow (9) reduces at least in portions.
8. Cooking appliance (1) according to the preceding claim, characterised in that the open flow cross section (16) reduces at least in the portion (17) of the cooling airflow (9) in which the steam outlet (11) of the cooking chamber (3) is guided into the cooling airflow (9).
9. Cooking appliance (1) according to any of the preceding claims, characterised in that the cooling airflow (9) extends into at least one blow-out portion (18).
10. Cooking appliance (1) according to the preceding claim, characterised in that at least one conducting means (19) for the cooling airflow (9) is provided at least for the blow-out portion (18).
11. Cooking appliance (1) according to either of the two preceding claims, characterised in that the blow-out portion (18) is provided at least in portions above the cooking chamber (3).
12. Cooking appliance (1) according to any of the three preceding claims, characterised in that the blow-out portion (17) extends over a substantial width (20) of the housing means (2).
13. Cooking appliance (1) according to any of the preceding claims, characterised in that the steam outlet (11) of the cooking chamber (3) is guided into the cooling airflow (9) in at least one low-pressure region (21).
14. Cooking appliance (1) according to the preceding claim, characterised in that the low pressure of the low-pressure region (20) continues as far as the steam outlet (11) and preferably as far as into the cooking chamber (3).

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