DE102016121834A1 - Cooking appliance - Google Patents

Abstract

The present invention relates to a cooking appliance (1) with a heated cooking chamber (11) and with a cooking chamber door (21) for closing a feed opening (31) of the cooking chamber (11) and with a ventilation opening (2) for ventilating the cooking chamber (11). For automated closing and / or opening of the ventilation opening (2), a closure element (3) can be moved by an actuating device (4). In this case, the actuating device (4) comprises two actuator units (5, 6) coupled in series, each having an actuator element (25, 26) movable relative to an actuator element receptacle (15, 16).

Description

The present invention relates to a cooking appliance with at least one heatable cooking chamber and at least one cooking chamber door for closing a feed opening of the cooking chamber and with at least one ventilation opening for ventilating the cooking chamber.

For an economical and energy-efficient operation of a cooking appliance and to achieve optimum cooking results, it is advantageous to flush the oven with different amounts of air.

However, often used in the art ventilation doors often do not allow different Garraumdurchspülungen. In most cases, the ventilation opening can either be completely opened or only completely closed by the flap. Ventilation flaps with different adjustment options, however, are often structurally very complex and thus cost-intensive and usually prone to failure.

It is therefore an object of the present invention to provide a cooking appliance with an improved possibility for ventilation of the cooking chamber, which is also particularly inexpensive or economically feasible.

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

The cooking appliance according to the invention comprises at least one heatable cooking chamber and at least one cooking chamber door for closing a feed opening of the cooking chamber. The cooking appliance comprises at least one ventilation opening for ventilating the cooking chamber. For automated closing and / or opening of the ventilation opening, at least one closure element can be moved by at least one actuating device. In this case, the actuating device comprises at least two actuator units coupled in series, each with at least one actuator element which can be moved relative to an actuator element mount.

The cooking appliance according to the invention offers many advantages. A considerable advantage is that at least two actuator units coupled in series are used to open and / or close the ventilation opening. Due to the serial coupling, the actuator units can complement each other in their travels or operating positions. Thus, with only two actuator units different movements of the closure element or different degrees of opening of the vent opening possible.

In addition, the required actuator units are generally reliably functioning and economically usable components. The cooking appliance according to the invention thus offers a considerably improved ventilation of the cooking chamber.

Particularly preferably, at least one first actuator unit together with the actuator element and the actuator element receptacle can be moved by the actuator element of at least one second actuator unit. As a result, the closure element is preferably movable both by the method of the actuator element and by the movement of the actuator units together with the actuator element and the actuator element holder.

This offers a particularly advantageous implementation of the serial coupling. For example, the first actuator unit is displaceably mounted for this purpose so that it can be displaced as a whole by the actuator element of the other actuator unit.

Preferably, the actuator units each have only two actuation positions, so that the respective actuator element is movable only between a first actuation position and a second actuation position. In particular, each actuator unit is designed to be binary-controlled, so that it is only possible to change between two operating positions. In particular, no intermediate positions are provided between the two intended operating positions. This enables the use of very cost-effective and very reliable actuators. Due to the serial coupling, however, more than just two positions of the closure element can be approached with such actuator units.

It is possible that at least one actuator unit also has three or four or more actuation positions. For example, the actuator element can be moved by a pulse width modulated control in a desired operating position.

In all embodiments, it is particularly preferred that in each case one actuator unit comprises at least one heatable expansion element. Due to the expansion element, the actuator element is movable relative to the Aktorelementaufnahme due to a change in volume of a resource. For example, the expansion element is designed as a wax expansion element. The resource is, for example, wax or other suitable medium.

The method and z. B. a retraction or extension of the actuator element in particular by a volume expansion due to heating. The expansion element is specifically heated by at least one controllable heating element. The heating element is not provided in particular for heating the cooking chamber. The expansion element is in particular electrically heated. Such expansion elements are inexpensive and can be used over long periods of use.

For example, the actuator element assumes the one actuating position in a heated state of the expansion element. In an unheated or cooled state of the expansion element, the actuator element preferably assumes the other operating position. In particular, due to the volume expansion of the operating means, the actuator element can be moved relative to the actuator element receptacle in only one direction. Then, in particular, at least one restoring device is provided for moving the actuator element receptacle in an opposite direction. The restoring device comprises in particular at least one spring or the like.

In a particularly preferred embodiment, the closure element is movable into at least three different closure positions by the actuator units coupled in series. The closure positions are in particular a closed ventilation opening and at least one partially open ventilation opening and an open ventilation opening. The partially open closure position can for example release half the cross-section of the ventilation opening. In the partially open closure position, the ventilation opening but also only a gap or almost completely open. Such closure positions allow advantageous ventilation of the cooking chamber and can be inexpensively implemented with the serially coupled actuator units.

In particular, the actuator elements of the actuator units coupled in series can be moved along parallel axes of movement. Thus, the travel paths of the actuator elements of the coupled actuator units can complement each other particularly well.

The closure element is preferably pivotable about an axis of rotation by the actuating device. It is preferred that the closure element at least partially releases or closes the ventilation opening. This allows a particularly reliable closing and opening of the ventilation opening. In particular, the closure element is rotatably mounted on the axis of rotation.

The actuating device preferably comprises at least one transmission linkage and / or at least one transmission element, which is arranged between the actuator units and the closure element. In particular, a linear movement of the actuator units in a pivoting movement of the closure element can be implemented by the transmission linkage or the transmission element.

In particular, the axis of rotation is arranged in such a way to the closure element and to the ventilation opening, that during pivoting a plane of the closure element remains parallel to a plane of the ventilation opening. In particular, the axis of rotation is arranged transversely to a plane of the closure element and transversely to a plane of the ventilation opening. The plane of the closure element and the plane of the ventilation opening are arranged in particular in parallel. This allows a particularly space-saving opening or closing the vent. For example, the ventilation opening and the closure element can thereby be arranged on an upper side of a muffle, without adversely affecting the available cooking space.

Preferably, the closure element is positioned in a first closed position when the actuator elements of the actuator units are in a first operating position. In particular, the closure element is positioned in a second closed position when the actuator elements of the actuator units are in different actuating positions. The closure element is preferably positioned in a third closure position when the actuator elements of the actuator units are both in a second actuation position.

In a particularly advantageous development, the closure positions of the closure element can be adjusted by means of at least one control device taking into account an operating state of the cooking appliance. The control device is in particular operatively connected to the actuating device. This allows a targeted setting of the closure element, depending on how strong a vent or ventilation of the cooking chamber should be for a particular operating condition. The operating state can be predetermined, for example, by a selected operating mode. The operating state can also be predetermined by the course of a treatment program and / or automatic program.

The control device is preferably suitable and designed to couple the closure positions of the closure element with an automated opening and / or closing of the door and / or with at least one fan setting depending on the operating state. For example, a speed of a suction fan for the Cooking space set. This has the advantage that further ventilation situations can be set, for example, with only three or four different closure positions.

The actuator units coupled in series can comprise actuator elements that can be moved to different extents so that the closure element can be moved into at least four different closure positions. The use of different actuator units is structurally inexpensive and offers a particularly targeted adjustment of the cooking chamber ventilation. In particular, different closure positions result, depending on which actuator unit the actuator element is extended or retracted.

In another advantageous embodiment, the actuator units coupled in series include identically far movable actuator elements. In particular, the two series coupled actuator elements are identical in construction. By such a configuration z. B. a total of three closure positions feasible. In addition, a particularly economical production of the cooking appliance is possible by using the same design Aktoreinheiten.

It can be provided that the actuating device comprises at least one further actuator unit. The further actuator unit is in particular not coupled in series. This allows further ventilation settings to be easily implemented. The further actuator unit preferably also includes at least one expansion element. The further actuator unit preferably at least one further closure element is movable. It is also possible that the further actuator unit is used for moving the closure element, which is also movable by the serially coupled actuator units.

In an advantageous embodiment it can be provided that at least one further closure element for at least one further ventilation opening can be moved by the further actuator unit. Particularly preferably, the further ventilation opening is arranged in the one closure element. For example, a closure element is designed as a flap and the further ventilation opening is formed as a recess in the flap. This has the advantage that no additional recess must be made in a Garraummuffel for the further vent. It is possible that the further closure element can be displaced by at least one linear movement onto the further ventilation opening in order to open or close it. However, the further actuator unit can also serve for moving the closure element, which is movable by the serially coupled actuator units.

The cooking appliance comprises in particular at least one receiving device, on which the closure element is movably mounted. The closure element is designed in particular as a flap or comprises at least one such flap.

The ventilation opening is designed in particular for venting the cooking chamber. It is also possible that the ventilation opening is provided for ventilating the cooking chamber.

The actuating device is in particular at least partially automated. In particular, the actuating device can be controlled by at least one control device of the cooking appliance.

The cooking appliance can be equipped with a catalyst device for reducing odor-intensive substances of Wrasens. In this case, the catalyst device is preferably arranged in flow connection with the ventilation opening, so that the vapor can be supplied from the cooking chamber via the ventilation opening of the catalyst device. But it is also possible that the ventilation opening for ventilation of the cooking chamber is independent of flow from a flow connection for the catalyst device and the cooking chamber still has a further opening for the removal of fumes.

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

• 1 eine rein schematische Darstellung eines erfindungsgemäßen Gargerätes mit einem Verschlusselement in einer geöffneten Verschlussstellung in einer Draufsicht;
• 2 das Gargerät mit einem Verschlusselement in einer geschlossenen Verschlussstellung;
• 3 das Gargerät mit einem Verschlusselement in einer teilweise geöffneten Verschlussstellung;
• 4 das Gargerät mit einem Verschlusselement in einer anderen teilweise geöffneten Verschlussstellung;
• 5 eine rein schematische Darstellung einer Funktionsweise einer Betätigungseinrichtung des Gargeräts;
• 6 eine rein schematische Darstellung einer anderen Funktionsweise der Betätigungseinrichtung;
• 7 eine stark schematische Darstellung der Betätigungseinrichtung in einer perspektivischen Ansicht von schräg oben;
• 8 eine Ausgestaltung des Gargerätes mit zwei geöffneten Lüftungsöffnungen in einer Draufsicht;
• 9 das Gargerät der 8 mit einer geschlossenen und einer geöffneten Lüftungsöffnung; und
• 10 das Gargerät der 8 mit zwei geschlossenen Lüftungsöffnungen.

In the figures show:

• 1 a purely schematic representation of a cooking appliance according to the invention with a closure element in an open closed position in a plan view;
• 2 the cooking appliance with a closure element in a closed closed position;
• 3 the cooking appliance with a closure element in a partially open closure position;
• 4 the cooking appliance with a closure element in another partially open closure position;
• 5 a purely schematic representation of an operation of an actuator of the cooking appliance;
• 6 a purely schematic representation of another operation of the actuator;
• 7 a highly schematic representation of the actuator in a perspective view obliquely from above;
• 8th an embodiment of the cooking appliance with two open ventilation openings in a plan view;
• 9 the cooking appliance of 8th with a closed and an open ventilation opening; and
• 10 the cooking appliance of 8th with two closed vents.

The 1 shows an inventive cooking appliance 1 , which is designed here as an oven. The cooking appliance 1 is intended here as a built-in device. It is also possible that the cooking appliance 1 is designed as a stove or stand unit.

The cooking appliance 1 has a heated cooking space 11 who is here from a muffle 51 is surrounded. For loading and unloading the cooking chamber 11 indicates the cooking appliance 1 on a front side of the muffle 51 a loading opening 31 on. The loading opening 31 is through a cooking chamber door 21 closable.

For heating the cooking chamber 11 Various heating facilities are available. Among other things, it is possible to heat with a circulating air heating source, with top and / or bottom heat, with a hot air heating source and / or with a grill function. It is also possible that the cooking appliance 1 is designed as a combined device with a microwave function and / or a Dampfgarfunktion.

The cooking appliance 1 here comprises a control device 41 for controlling or regulating device functions and operating states. About the controller 41 In addition, different operating modes and preferably different program operating modes and automatic functions can be executed here.

To operate the cooking appliance 1 an operating device not shown here is provided. For example, the operating mode, the operating temperature and / or a program operating mode or automatic function can be selected or set via this.

The cooking space 11 is with a ventilation opening 2 equipped, over which the cooking space 11 can be specifically vented in certain operating conditions. The ventilation opening 2 is as a recess in the muffle 51 designed so that a flow connection between cooking chamber 11 and the environment of the cooking appliance 1 will be produced.

To an automated closing or opening of the ventilation opening 2 to enable, here is a closure element 3 provided, which by an actuating device 4 is movable. The closure element 3 is designed here as a flap.

Preferably, there is an active air duct, in which the air from the oven 11 using a suction fan through the ventilation opening 2 is sucked.

The actuating device 4 here comprises two actuator units 5 . 6 , which are coupled together in series. The actuator units 5 . 6 here each comprise a heatable expansion element 34 , Thus, by a targeted heating a volume expansion of a resource, such as wax, can be achieved. The volume expansion then becomes to move the closure element 3 used.

Between the actuator units 5 . 6 and the closure element 3 here is a linkage 54 intended. About the linkage 54 becomes the linear movement of the actuator units 5 . 6 in a pivoting movement of the closure element 3 implemented. This is the closure element 3 rotatably mounted on a rotation axis, which is substantially perpendicular to the top of the muffle 51 runs. Here is a plane of the closure element 3 parallel to a plane of the ventilation opening 2 or the top of the oven aligned. When pivoting the closure element to open or close the plane of the closure element remains 3 thus parallel to the plane of the ventilation opening 2 ,

The 2 shows the closure element 3 in a closed position 13 in which the ventilation opening 2 is completely closed.

In the 3 is a closed position 23 shown at which the ventilation opening 2 just opened by a crack.

The 4 shows a closed position 43 in which the ventilation opening is open about halfway.

The 5 shows a highly schematic example of an operation of the serially coupled actuator units 5 . 6 , The actuator units 5 . 6 each have an actuator element receptacle 15 . 16 and an actuator element arranged movably therein 25 . 26 on. The actuator elements 24 . 26 have the same lengths here.

The actuator units 5 . 6 can only operate in two positions 14 . 24 be moved. It is in the first operating position 14 the respective actuator element 25 . 26 in his Aktorelementaufnahme 15 . 16 retracted. In the other operating position 24 is the actuator element 15 . 16 from the Aktorelementaufnahme 25 . 26 extended. The actuator units 5 . 6 are as expansion elements 41 trained and the method of the actuator elements 24 . 26 done by a targeted electrical heating.

Through the serial coupling of the actuator units 5 . 6 Here are three different closure positions 13 . 23 . 33 realizable. The closure positions 13 . 23 . 33 are outlined here by dashed-dotted lines. The serial coupling is achieved here by the fact that the left actuator unit 5 together with its actuator element 25 and their actuator element receptacle 15 is slidably mounted. The extension of the actuator element 26 behind the arranged actuator unit 6 thus causes a displacement of the entire front actuator unit.

In the upper row of the 5 are both actuator units 5 . 6 in a first operating position 14 shown in which the respective actuator elements 25 . 26 retracted. This can be a first closed position 13 be set, for example, in the closure element 3 the ventilation opening 2 For example, completely closes or releases.

In the second row is an actuator unit 5 in the first operating position 14 and the other actuator unit 6 in a second operating position 24 , When extending the actuator element 26 from the rear actuator unit 6 became the serially coupled front actuator unit 5 pushed accordingly.

The third row also shows a second closure position 23 , which in turn here by each different operating positions 14 . 24 the two actuator units 5 . 6 was set. In contrast to the above embodiment, however, the actuator element became here 25 the front actuator unit 5 extended. Due to the same length trained actuator elements 24 . 26 this results in the same closure position 23 ,

In the bottom row is a third closure position 33 shown, which by the extension of both actuator elements 25 . 26 is adjustable. Through the serial coupling of both actuator units 5 . 6 the corresponding travel paths of the actuator elements add up 25 . 26 ,

By a corresponding coupling of the actuator units 5 . 6 with the closure element 3 For example, as before for the 1 - 4 Thus, three different closure positions can be described 13 . 23 . 33 be set.

In the 6 is an embodiment of the actuator 4 shown in which two unequal actuator units 5 . 6 be used. In this case, the actuator element 25 the front actuator unit 5 longer here than the actuator element 26 the rear actuator unit 6 educated. This results in a total of 4 different closure positions 13 . 23 . 33 . 43 ,

The fourth 43 and the second closed position 23 For example, for a partial opening of the ventilation opening 2 be used as related to the 3 and 4 has been described. For example, due to the longer actuator element 25 the front actuator unit 5 the ventilation opening 2 be closed further than when extending the shorter actuator element 26 ,

In another example of an operation of the actuator units 5 . 6 These can be controlled as follows: At rest, the closure element 3 placed so that the ventilation opening 2 1 / 3 is open. For this purpose, none of the actuator units 5 . 6 electrically controlled, ie, actuator unit 5 is retracted and actuator unit 6 is extended. This is preferably the normal state.

For a complete closing of the ventilation opening 2 becomes the actuator unit 6 so that their actuator element 26 retracts. The other actuator unit 5 is not activated and preferably retracts. Should the ventilation opening 2 to 2 / 3 be opened, the actuator unit 5 so that their actuator element 25 extending. In addition, the other actuator unit 6 so that their actuator element 26 retracts.

For a full opening of the ventilation opening 2 becomes the one actuator unit 5 controlled and their actuator element 25 goes out. The other actuator unit 6 on the other hand, it is not activated and thus remains extended. In other embodiments, other combinations of operating positions may be used 14 . 24 and lock positions 13 . 23 . 33 . 43 be provided.

The 7 shows the actuator 4 with the on top of the muffle 51 arranged actuator units 5 . 6 , which here by each an expansion element 34 to be provided. On the actuator element 25 the front actuator unit 5 here is a linkage 54 connected, via which the movement on the closure element 5 is transferable. The front actuator unit 5 is movable here on a receiving device 64 tethered. So can the front actuator unit 5 by the extension of the rear actuator element 26 to be moved as a whole.

The 8th shows an embodiment of the cooking appliance according to the invention 1 with another actuator unit 7 , The further actuator unit 7 is here as an expansion element 34 educated. The actuator 7 is not with the other two actuator units 5 . 6 coupled in series and serves to provide another vent 27 automated to close or open.

Here is the further ventilation opening 27 here as a recess in the closure element 3 educated. To close the further ventilation opening 27 is another closure element 17 provided, which by the further actuator unit 7 and a linkage attached to it 37 is movable.

The one closure element 3 is here in a closed position, where the vent 2 is completely open. Also the further ventilation opening 27 is not locked here.

In the 9 became the closure element 3 using the two actuator units 5 . 6 in a closed position 13 moves at which the closure element 3 completely over the ventilation opening 2 pushed. Due to the further ventilation opening 27 in the closure element 3 is the access to the oven 11 but not yet completely closed.

In the 10 is also the further ventilation opening 27 through the further closure element 17 locked. This was the further closure element 17 over the further ventilation opening 27 pushed.

The setting of the actuator units 5 . 6 and, if present, also the activation of the further actuator unit 7 done here by the controller 41 taking into account an operating state of the cooking appliance 1 , In addition, via the control device 41 also an automated opening and / or closing the cooking chamber door 21 respectively. The control device 41 is z. B. also capable of a fan setting for the air supply from or into the oven 11 make. For this purpose, at least one controllable fan device is provided. The fan settings are made for example by setting a speed of the blower device.

In one embodiment, the control device, the closure positions 13 . 23 . 33 . 43 with the automatic opening or closing of the door 21 and pair with the fan setting. The assignment of closure positions 13 . 23 . 33 . 43 with the blower setting or also with the opening operations of the door 21 is preferably stored in the control device.

Below some operating conditions are listed as examples in which different cooking space flushing can be achieved with a coupling of the closure position with a fan setting and with an automated door opening. The blower device is an exhaust fan for the cooking chamber 11 , About the speed of the exhaust fan different suction rates are set. The position of the cooking chamber door additionally influences the volume flow. For example, two series-coupled actuator units 5 . 6 and a closure element 3 used.

For a tanning ceremony, the ventilation opening 2 preferably closed. A fan for cooking chamber ventilation is set to run-on. A hot air blower is operated at a low speed. The door 21 is closed. A volume flow for ventilation of the cooking chamber 11 is for example less than 5 l / min.

For operation with hot air, the ventilation opening 2 opened a gap, as for example in the 3 you can see. The blower device for cooking chamber ventilation is in operation. The hot air blower is operated at an increased speed. The oven door 21 is closed. The volume flow for cooking chamber ventilation is for example 15 l / min.

In a hot air operation with Crispfunktion is the vent 2 preferably completely open. Compared to the hot air operation described above, the volume flow is also increased to 50 l / min to 80 l / min.

For operating conditions with one or more active radiant heat sources, for example, the same setting as in hot air operation, but with the hot air blower is inactive. Similarly, for operation with one or more radiant heat sources with Crispfunktion the same settings as in the hot air mode with Crispfunktion be set, but the hot air blower is inactive.

For a quick cooling, the ventilation opening 2 preferably completely open. The speed of the fan device for the cooking chamber ventilation is set to a higher value, for example to a speed as in a pyrolytic cleaning. The hot air blower is inactive here. The oven door 21 will be opened automatically. The volume flow to ventilation is for example 250 / min to 300 l / min.

For a wake as operating condition is preferably the vent 2 fully open. The speed of the fan for the cooking chamber ventilation is set to a lower, intended for a caster speed. The hot air blower is inactive and the cooking chamber door 21 is closed. The volume flow is for example 10 l / min.

In a resting state of the cooking appliance 1 Preferably, all the blower devices are switched off and the cooking chamber door 21 is closed. Here is the ventilation opening 2 However, a gap opened, as for example in the 3 is shown.

The cooking appliance presented here 1 has the particular advantage that with two simple expansion elements 34 a closure element 3 or a flap can be controlled so that up to four different openings of the cooking chamber 11 can be adjusted. The structure is simple, robust, cost-effective and leaves by combination with the fan speed and position of the cooking chamber door 21 different cooking chamber flushes too.

LIST OF REFERENCE NUMBERS

1

Cooking appliance

2

vent

3

closure element

4

actuator

5

actuator

6

actuator

7

actuator

11

oven

13

closed position

14

actuating position

15

Aktorelementaufnahme

16

Aktorelementaufnahme

17

closure element

21

oven door

23

closed position

24

actuating position

25

actuator

26

actuator

27

vent

31

loading port

33

closed position

34

expansion element

37

linkage

41

control device

43

closed position

44

actuator

51

muffle

54

linkage

64

recording device

Claims (14)

Cooking appliance (1) with at least one heatable cooking chamber (11) and with at least one cooking chamber door (21) for closing a feed opening (31) of the cooking chamber (11) and with at least one ventilation opening (2) for ventilating the cooking chamber (11), wherein automated closure and / or opening of the ventilation opening (2) at least one closure element (3) by at least one actuator (4) is movable, characterized in that the actuating device (4) at least two series-coupled actuator units (5, 6), each with at least a relative to an actuator element (15, 16) movable actuator element (25, 26). Cooking appliance (1) according to the preceding claim, characterized in that at least one first actuator unit (5) together with the actuator element (25) and actuator element receptacle (15) by the actuator element (26) at least one second actuator unit (6) is movable, so that the closure element ( 3) is movable both by the method of the actuator element (25, 26) and by the movement of the actuator unit (5) together with the actuator element (25) and actuator element receptacle (15). Cooking appliance (1) according to one of the preceding claims, characterized in that the actuator units (5, 6) each have only two actuating positions (14, 24), so that the respective actuator element (25, 26) only between in a first operating position (14). and a second operating position (24) is movable. Cooking appliance (1) according to one of the preceding claims, characterized in that in each case an actuator unit (5, 6) comprises at least one heatable expansion element (34), by which the actuator element (25, 26) due to a change in volume of a resource relative to the Aktorelementaufnahme ( 15, 16) is movable. Cooking appliance (1) according to one of the preceding claims, characterized in that the closure element (3) by the series-coupled actuator units (5, 6) in at least three different closure positions (13, 23, 33) is movable. Cooking appliance (1) according to one of the preceding claims, characterized in that the actuator elements (25, 26) of the actuator units (5, 6) coupled in series can be moved along parallel axes of movement. Cooking appliance (1) according to one of the preceding claims, characterized in that the closure element (3) is pivotable about an axis of rotation by the actuating device (4) and at least partially releases or closes the ventilation opening (2). Cooking appliance (1) according to the preceding claim, characterized in that the axis of rotation is arranged to the closure element (3) and the ventilation opening (2), that during pivoting a plane of the closure element (3) in parallel to a plane of the (2) ventilation opening remains. Cooking appliance (1) according to one of the preceding claims, characterized in that the closure element (3) in a first closed position (13) is positioned when the actuator elements (25, 26) of the actuator units (5, 6) in a first operating position (14 ) and that the closure element (3) is positioned in a second closure position (23) when the actuator elements (25, 26) of the actuator units (5, 6) are in different actuating positions (14, 24) and that the closure element (3) is positioned in a third closed position (33) when the actuator elements (25, 26) of the actuator units (5, 6) are both in a second actuating position (24). Cooking appliance (1) according to one of the preceding claims, characterized in that closure positions (13, 23, 33) of the closure element (3) are adjustable by at least one control device (41) taking into account an operating state of the cooking appliance (1). Cooking appliance (1) according to the preceding claim, characterized in that the control device (41) is suitable and designed, depending on the operating state, the closure positions (13, 23, 33) of the closure element (3) with an automated opening and / or closing the door (21) and / or to couple with at least one fan setting. Cooking appliance (1) according to one of the preceding claims, characterized in that the actuator units (5, 6) coupled in series include differently movable actuator elements (25, 26), so that the closure element (3) can be arranged in at least four different closure positions (13, 23 , 33, 43) is movable. Cooking appliance (1) according to one of the preceding claims, characterized in that the actuating device (4) comprises at least one further actuator unit (7), which is not coupled in series. Cooking appliance (1) according to the preceding claim, characterized in that by the further actuator unit (7) at least one further closure element (17) for at least one further ventilation opening (27) is movable and that the further ventilation opening (27) in the one closure element ( 3) is arranged.

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