WO2007020165A1 - Cooking appliance - Google Patents

Abstract

The invention relates to a elevated-mounted cooking appliance with at least one muffle, which delimits a cooking compartment and whose muffle opening can be closed by a door with a cooktop on its top side. The cooking device has at least two operating modes, and at least one operating mode selection circuit is provided for switching between at least two operating modes.

Description

 Cooking appliance

The invention relates to a cooking appliance, in particular a high-installation cooking appliance, with at least one muffle defining a cooking space with a muffle opening, a door for closing the muffle opening and at least one control panel for setting at least two operating modes.

For example, DE 100 59 652 A1 discloses a high-installation cooking appliance in which the hob of the base door can be switched between a hob function and a bottom heating function.

The disadvantage is that as the number of operating modes or functions increases, operation by the user becomes more confusing. In addition, more and more function and display elements are housed in a control panel.

It is the object of the present invention to provide a way for easy operation of a cooking appliance, which is flexible and clear and also inexpensive to implement.

The present object is achieved by the high-mounting cooking appliance with the features of claim 1 and a method according to claim 12.

This cooking appliance, which is preferably a high-installation cooking appliance, but may also have a baking tray, has an operating mode selection circuit for switching between at least two operating modes. Thus, it is possible to switch between several operating modes or functionalities by means of a single switch, instead of having to actuate a separate switch for each operating mode. As a result, due to the smaller number of switches a good clarity and cost manufacturability at the same time ensured flexibility.

The activation of the operating mode can be done automatically with the switching between the modes, but this is disadvantageous in terms of device control. It is therefore advantageous if the activation of the operating mode selected by switching the operating mode selection circuit must be activated separately, for. B. by pressing a confirmation or OK button. It is for improved clarity, in particular by saving display units, z. As digital display fields, advantageous if when switching the mode and a display unit is switched accordingly, if necessary. This changeover using at least one multifunctional display field reduces the number of required display fields. This alone is not known and not suggested. In general, the display unit can also switch over when switching between the operating modes.

It is particularly advantageous if the operating modes include a closed-state oven functionality and an open-state cooktop functionality, in which, in particular, closed-state functionality and open-state functionality are advantageously automatically switchable. In this case, the required display position of the display field differs, in which a temperature is typically specified in the oven operation and a cooking stage in the hotplate operation.

In this case, the hob advantageously has at least one hotplate, and the hob functionality is in particular a hotplate functionality that includes a control of different cooking levels of the respective hob. The hotplate functionality may be used, for example, as a cooking, roasting, or as a holding function. However, it can also be controlled the entire hob, especially in the keep warm functionality.

The furnace functionality in turn may include a control of the temperature of the closed cooking chamber.

Then it is advantageous if the cooktop has a hotplate, and the cooktop functionality is a hotplate functionality that includes control of various cooking levels of this hotplate, and if the mode switch, a selector switch and a display are present, wherein in the oven functionality of the selector for Setting a temperature is set in the cooking chamber and the display shows the set temperature, and in the hob functionality, the selector switch for setting a cooking level of the cooking area is set and the display shows the set cooking level. If the cooktop has two hotplates, it is advantageous if the cooktop functionality is a cooktop functionality that includes control of various cooking levels of the cooktops, and a toggle switch between the oven functionality and the cooktop functionality, a mode selector switch to toggle between other functionalities associated display and another selector switch with associated display are present, wherein in the oven functionality of the selector switch is set for setting a temperature in the oven and the display shows the set temperature and by means of the mode switch the mode is adjustable, which is preferably displayed in the associated display and in the hotplate functionality, the selector switch is configured to set a cooking level of the first hotplate and the associated display is to display the K set at the first hotplate ochstufe is set, and further the mode switch for setting a cooking level of the second cooking station is set and the associated display is set to display the cooking stage set at the second hob.

The mode selection circuit is not limited to a specific embodiment. So a control can be used, as well as a control panel with multiple controls. It is advantageous for the sake of clarity if the mode selection circuit comprises three controls, namely a switch for cyclically going through the mode selection in one direction, another switch for cyclically going through the mode selection in the other direction and a confirmation switch, by means of which the selected mode is activated. Preferably, the mode -. B. symbolic - always readable in a separate display field. If it depends on a small number of switches, for example, a single rotary switch can be used as a mode selector circuit, which passes through the unidirectional modes by rotation in one direction, by pressing this rotary switch the mode selection is confirmed and thus activated.

Hereinafter, an embodiment of the invention with reference to the accompanying figures is described in detail. They show schematically:

1 is a perspective view of a mounted on a wall Hoch- built-in appliance with lowered bottom door. 2 is a perspective view of the high-Einhaugargeräts with closed bottom door.

3 is a perspective view of a housing of the Hoch-Einbaugargeräts without the bottom door. 4 shows a schematic side view in a sectional view along the line I-I from FIG. 1 of the wall mounted high-mounted cooking appliance with lowered bottom door;

5 shows a front view of another embodiment of a high-installation cooking appliance; Fig. 6 is a view of a control panel of a high-mounting appliance; Fig. 7 shows another view of the control panel of Fig. 6; Fig. 8 shows another view of the control panel of Fig. 6; Fig. 9 shows a view of another control panel of a Hoch-Einbaugargeräts.

1 shows a high-installation cooking appliance with a housing 1 is shown. The back of the housing 1 is mounted on a wall 2 in the manner of a hanging cabinet. In the housing 1, a cooking chamber 3 is defined, which can be controlled via a front side in the housing 1 introduced viewing window 4. In FIG. 4 it can be seen that the cooking space 3 is delimited by a muffle 5, which is provided with a heat-insulating sheath, not shown, and that the muffle 5 has a bottom-side muffle opening 6. The muffle opening 6 is closable with a bottom door 7. In Fig. 1, the bottom door 7 is shown lowered, being with its underside in contact with a worktop 8 a kitchen device. In order to close the cooking chamber 3, the bottom door 7 is in the position shown in FIG. 2, the so-called. "Zero position" to adjust. To adjust the bottom door 7, the Hoch-Einbaugargerät a drive device 9, 10 on. The drive device 9, 10 has a drive motor 9 shown in dashed lines in FIGS. 1, 2 and 4, which is arranged between the muffle 5 and an outer wall of the housing 1. The drive motor 9 is arranged in the region of the rear side of the housing 1 and is, as shown in FIGS. 1 or 4, in operative connection with a pair of lifting elements 10, which are connected to the bottom door 7. 4, each lifting element 10 is designed as an L-shaped carrier, whose vertical leg extends from the housing-side drive motor 9 To adjust the bottom door 7, the drive motor 9 can be actuated with the aid of a control panel 12 and a control circuit 13, which is arranged at the front of the base door 7 according to FIGS. 1 and 2. As shown in FIG. 4, the control Circuit 13 behind the control panel 12 within the bottom door 7. The control circuit 13, which is composed here of several spatially and functionally separated and communicating via a communication bus circuit boards, is a central control unit for the device operation and controls and / or controls z. As a heating, a method of the bottom door 3, a conversion of user input, a lighting, a pinch protection, a clocking of the radiator 16, 17, 18, 22 and much more.

FIG. 1 shows that an upper side of the bottom door 7 has a hob 15. Almost the entire surface of the hob 15 is occupied by radiators 16, 17, 18, which are indicated in phantom in Fig. 1. In Fig. 1, the radiator 16, 17 two spaced apart, different sized cooking surface heaters, while the radiator 18 is provided between the two cooking area heaters 16,17 surface heating element, which almost encloses the hotplate radiator 16, 17. The hotplate heaters 16, 17 define for the user associated cooking zones or hobs; the hotplate heaters 16, 17 together with the surface heating element 18 define a bottom heat zone. The zones may be indicated by a suitable decoration on the surface. The radiators 16, 17, 18 can each be actuated via the control circuit 13.

In the exemplary embodiment shown, the radiators 16, 17, 18 are configured as radiant heaters, which are covered by a glass ceramic plate 19. The glass ceramic plate 19 has approximately the dimensions of the top of the bottom door 7. The glass ceramic plate 19 is further equipped with mounting holes (not shown) through the base for holding support members 20 for Gargutträger 21 protrude, as shown in Fig. 4. Instead of a glass ceramic plate 19, other - preferably quick-responding - covers can be used, for. B. a thin sheet.

With the help of a control panel 12 provided in the control knob, the high-installation cooking appliance can be switched to a cooking or a bottom heat mode, which will be explained below.

In the hob mode, the cooking surface heaters 16, 17 can be controlled individually by means of controls 11, which are provided in the control panel 12, via the control circuit 13, while the surface heating element 18 except Operation remains. The hotplate mode is executable with the bottom door 7 lowered, as shown in FIG. But it can also be operated with closed cooking chamber 3 with raised floor door 7 in an energy saving function.

In the lower heat mode, not only the hotplate heaters 16, 17 but also the surface heating element 18 are activated by the control device 13.

In order to achieve the most uniform possible tanning image of the food during the bottom heat, it is crucial that the cooking surface 15 providing the bottom heat has a uniform distribution of the heat output over the surface of the hob 15, although the heating elements 16, 17, 18 have different nominal powers. Preferably, therefore, the radiators 16, 17, 18 are not switched by the control circuit 13 to a continuous operation, but the power supply to the radiators 16, 17, 18 is clocked. The different sized nominal heating powers of the radiator 16, 17, 18 are individually reduced so that the radiators 16, 17, 18 provide a uniform over the surface of the hob 15 distribution of the heat output.

Fig. 4 shows schematically the position of a fan 23, z. B. for generating circulating air in a hot air operation or for supplying fresh air. In addition, a mounted on an upper side of the muffle 5 Oberhitzeheizkörper 22 is provided, the single-circuit or mehrkreisig, z. B. with an inner and an outer circle, can be executed. Also can - not shown here for clarity - another radiator such as a ring heater between the rear wall of the housing 1 and the muffle be present. By the control circuit 13, the various operating modes, such as, for example, top heat, hot air or Schnellaufheizbetrieb, by an appropriate activation and adjustment of the heating power of the radiator 16, 17, 18, 22, possibly with activation of the fan 23, are set. The adjustment of the heating power can be done by appropriate timing. In addition, the hob 15 can also be designed differently, for. B. with or without roasting zone, as a pure - one or mehrkreisige - warming zone without cooktops and so on. The housing 1 has a seal 24 towards the bottom door 7.

The control panel 12 is arranged mainly at the front of the bottom door 7. There are alternatively other arrangements conceivable, for. Eg at the front te of the housing 1, divided into different subfields and / or partially on side surfaces of the cooking appliance. Further designs are possible. The controls 11 are not limited in their design and can, for. B. z. As control knob, toggle switch, pushbuttons and membrane keys include the display elements 14 include z. B. LED, LCD and / or touchscreen displays.

In Fig. 5 is schematically and not to scale a high-mounted cooking appliance shown from the front, in which the bottom door 7 is open on contact with the worktop 8. The closed state is shown in dashed lines.

In this embodiment, two traversing panels 25 are located on the front side of the fixed housing 1. Each traversing panel 25 comprises two pushbuttons, namely an upper CLOSE button 25a for a bottom door 7 traveling upwards in the closing direction and a lower OPEN button 25b for one Without automatic operation (see below) moves the bottom door 7 only by continuous simultaneous pressing the CLOSE buttons 25a both traversing panels 25 upwards, if possible; The bottom door 7 also moves downwards only if the UP buttons 25b of both travel panels 25 are pressed simultaneously, if possible (manual operation). Since in manual operation an increased operator attention of the user is given and also both hands are used here, an anti-trap is then optional. In an alternative embodiment, shifting panels 26 are mounted on opposite outer sides of the housing 1 with corresponding ZU buttons 26a and UP buttons 26b, as indicated by dots.

The dot-dashed control circuit 13, which is located inside the bottom door 7 behind the control panel 12, the drive motor 9 switches so that the bottom door 7 gently anfährt, d. H. not abruptly by simply hiring the drive motor 9, but by means of a defined ramp.

In this exemplary embodiment, the control circuit 13 comprises a memory unit 27 for storing at least one target or travel position PO, P1, P2, PZ of the bottom door 7, preferably with volatile memory modules, eg. B. DRAMs. If a target position PO, P1, P2, PZ is stored, the bottom door can move independently after pressing one of the keys 25a, 25b and 26a, 26b of the traversing panels 25 and 26 in the set direction until the next target position is reached or one of the keys 25a, 25b and 26a, 26b is pressed again (automatic mode). In this embodiment, the lowest target position PZ corresponds to the maximum opening, the (zero) position PO to the closed state, and P1 and P2 are freely adjustable intermediate positions. If the last target position for one direction has been reached, manual operation must also be continued if this is possible (ie the last end positions do not correspond to a maximum open or closed final state). Analog must then, if for one direction no target position is stored - which z. B. for an upward movement into the closed position would be the case if only PZ is stored, but not PO, P1, P2 - be driven in this direction in manual mode. If no target position is stored, eg. B. in a new installation or after a power disconnection, no automatic mode is possible. If the bottom door 7 is moved in automatic mode, an anti-pinch protection is preferably activated.

Automatic mode and manual operation are not mutually exclusive: by permanently actuating the positioning panel (s) 25, 26, the bottom door 7 also moves in manual mode if a target position could be approached in this direction. It can be z. B. a maximum actuation time of the traversing fields 25 and 26, respectively, of the associated keys 25a, 25b and 26a, 26b, are set to activate the automatic mode, z. B. 0.4 seconds.

A target position PO, P1, P2, PZ may be any position of the bottom door 7 between and including the zero position PO and the maximum open position PZ. However, the maximum stored opening position PZ need not be the position with abutment on the work surface 8. Storing the target position PO, P1, P2, PZ can be achieved with the bottom door 7 at the desired target position PO, P1, P2, PZ, by means of, for example, several seconds (eg two seconds), pressing a confirmation key 28 in FIG Control panel 12 are performed. Existing optical and / or acoustic signal transmitters which output corresponding signals after storing a target position are not shown for the sake of clarity. Approaching the desired target position PO, P1, P2, PZ to be set takes place, for example, by - in this embodiment - ambidextrous operation of the movement panels 25 or 26 and manual movement to this position. In the memory unit 27, only one or, as shown in this embodiment, a plurality of target positions PO, P1, P2, PZ can be einspeicherbar. In the case of a plurality of target positions PO, P1, P2, PZ, these can be approached successively by actuating the corresponding movement keys 25a, 25b or 26a, 26b. By multiple target positions PO, P1, P2, PZ, the high-installation cooking appliance can be easily adapted to the desired operating height of multiple users. The target position (s) are advantageously erasable and / or overwritten. In one embodiment, for example, only one target position can be stored in the opened state, while the zero position PO is automatically detected and can be automatically approached. Alternatively, the zero position PO must be stored in order to be automatically approachable.

It is particularly advantageous for ergonomic use if the or a target position P1, P2, PZ opens the bottom door 7 at least about 400 mm to about 540 mm (ie P1-P0, P2-P0, PZ-PO ≥ 40cm to 54 cm). In this opening dimension the food supports 21 are easy to insert into the support members 20. It is advantageous if the viewing window 4 is mounted approximately at eye level of the user or slightly below, z. B. by means of a template that indicates the dimensions of the cooking appliance.

Not shown is an existing power failure override for bridging of about 1 to 3 s power failure, preferably to 1, 5 s power failure.

The drive motor 9 from FIG. 1 has at least one sensor unit 31, 32 arranged on a motor shaft 30, possibly in front of or behind a transmission, in order to measure a travel path or a position and / or a speed of the bottom door 7. For example, the sensor unit may include one or more induction, reverberation, opto, SAW sensors, and so forth. Here, two Hall (part) elements 31 offset by 180 ° - so opposite - attached to the motor shaft 30 for easy Weg- and speed measurement here, and a Hallmeßaufnehmer 32 is fixedly mounted at this area of the motor shaft spaced. If a Hall element 31 then moves past the measuring transducer 32 when the motor shaft 30 rotates, a measuring or sensor signal is generated which is, to a good approximation, digital. With (not necessarily) two Hall elements 31, therefore, two signals are output during one revolution of the motor shaft 30. By time evaluation of these signals, z. B. their time difference, the speed vL of the bottom door 7 can be determined, for example via Vergleichstabel- len or a conversion in real time in the control circuit 13. By addition or subtraction of the measurement signals, a travel or a position of the bottom door 7 can be determined.

A speed control can realize the speed, for example via a PWM-controlled power semiconductor.

For zero point determination, the distance measurement is automatically readjusted by initialization in the zero position PO of the bottom door 7 at each start, so z. B. a faulty sensor signal output or -aufnähme not traditional.

The drive motor 9 is operated by actuation of both traversing panels 25 and 26, even when the main switch 29 is turned off.

Instead of two separate switches per traversing field 25, 26 and a single switch per traversing field is possible, for. B. a toggle switch with a neutral position, which switches only under pressure. Other shapes are possible. Also, the nature and arrangement of the controls 28,29 of the control panel 12 is not limited.

The arrangement and distribution of the control circuit 13 is flexible and not limited, so it can be several boards, z. B. include a display board, a control board and an elevator board, which are spatially separated.

A 4 mm opening dimension can be detected by limit switches 33, which deactivate anti-pinch protection when actuated.

The high-installation cooking appliance can also be designed without a storage unit 27, in which case no automatic operation is possible. This can be for increased operating safety, eg. B. as protection against pinching, be useful.

Fig. 6 shows the control panel 12 of Fig. 5 in more detail. The control panel 12 includes a left display panel 34, a center display panel 35, and a right display panel 36, which in this figure represent all possible displays, such as display panels. For example, in the left display field 34 mode symbols, in the middle display field 35 a time, cooking time or other parameters useful for the set operating mode and in the right display field 36 a three-digit alphanumeric display 37, a temperature unit display 38 (here adjustable to ⁰ C and ⁰ F) and a level indicator 39. Below this is a series of switches 40-51, namely

a main switch button 40 to the on and off switch of the device, possibly with time delay, a key button 41 for locking the device, an arrow-down button 42 for selecting individual modes in descending order, an arrow-up button 43 for selecting individual modes in ascending order, a furnace lamp or light switch 44 for actively switching a furnace lighting (not shown) by the user, a clock key 45 for selecting individual time functions, eg. Baking time, etc., an alarm key 46 for selecting an alarm function, an information key 47 for calling information, e.g. B. an actual temperature or a heating time, a minus button 48 for negative adjustment of temperature and time functions, a plus button 49 for positive adjustment of temperature and time functions, a Schnellaufheiztaste 50 for switching on and off a Schnellaufheizfunktion and OK Tastebzw. Confirmation key 51 as activation key, z. Eg for time functions and operating modes.

In this embodiment, the mode selection circuit thus uses two separate arrow keys 42,43 and possibly the confirmation key 51st By actuating the operating mode selection circuit, the cooking appliance can be switched over between different functionalities. The operating modes are cycled through. The mode selector circuit is not limited to the embodiment shown here.

The mode switching 42,43,51 will be described in more detail below with reference to the example of a switching between a furnace functionality and a Kochstellenfunktio- onality. FIG. 7 shows the display of the control panel of FIG. 6 in a furnace functionality triggered by the corresponding actuation of the arrow keys 42 and 43, respectively. In this case, the high-installation cooking appliance is in the closed position shown schematically in Fig. 2. In the closed position, the high-installation cooking appliance operates as an oven, with the right display field 36 in the alphanumeric subfield 37 indicating a temperature in the cooking space, which is given in degrees Celsius ( ⁰ C) in this example. The temperature display can also be switched to Fahrenheit, for example. The temperature in the oven is reduced by the minus button 48 and increased by the plus button 49. In the middle display panel 35 z. B. a cooking time or remaining cooking time can be displayed. The level indicator 39 is turned off. The left display 34 indicates the icon associated with the operating mode.

FIG. 8 shows the display panel 12 from FIG. 6 in a hob or hotplate functionality. This is in the open state of the cooking appliance, as shown in Fig. 1, active, wherein a hotplate or the / the associated heating element is driven. This functionality is switched by pressing the arrow keys 42 and 43, which here correspond to the mode selector. In this case, the switching can also include an automatic movement of the base door into the position associated with the selected operating mode. In the cooking area functionality, instead of the temperature unit display 38, the level display 39 is now shown in the right display field 36, while the alphanumeric display 37 now shows the cooking level instead of a temperature. The minus button 48 and the plus button 49 switch the cooking level, z. B. between 0 and 9, down or up.

In Figs. 7 and 8, the key assignment can thus be switched depending on the selected mode, z. B. from a selection of the temperature to a selection of cooking levels and back through the minus or plus buttons 48, 49, and only relevant displays are displayed. The corresponding setting of the control panel 12 may, for. B. by the control circuit 13 shown in Fig. 4, possibly also acting as a display board part thereof happen.

The switchover shown in FIGS. 7 and 8 has the advantage that no additional switch is required for switching between furnace functionality and hob functionality. Of course, the nature of the switches 40-51 is not limited and may include any suitable type of switch, e.g. Gag, rotary switch, toggle switch, pushbutton switch, foil switch, thermal sensor switch and so on. For example, the mode selector circuit may alternatively have a spinning rotary switch instead of the two arrow keys 42, 43. By using this rotary switch, the number of switches could even be further reduced.

Also, the invention is not limited to a particular mode of operation or functionality. For example, it is also possible to switch between a keep-warm function in the open and in the closed state. In addition, the list of keys 40-51 listed in the exemplary embodiments is not conclusive; Depending on functionality and scope of comfort, fewer or more buttons may be provided.

In Fig. 9, a display panel 44 is shown, which is suitable for a cooking appliance with two cooking zones. In contrast to the control panel 12 of Fig. 5 to 7, which is particularly suitable for a cooking appliance with a single cooking zone, now another cooking zone switch 53 is provided by the operation of the operating mode is switched to a cooking zone mode. After actuation of the cooking zone switch 53, z. For example, from a display analogous to the display of FIG. 6 for a furnace functionality, both the middle display panel 54 and the right display panel 36 show a cooking level display 39, 55 with display of the respective cooking levels in their alphanumeric fields 37, 56. During the cooking stage selection and display for, for. If the cooking zone of the other cooking zone is now set by the arrow-down button 42 (cooking level lower) and the arrow-up button 43 (cooking level higher), for example, right cooking zone analogous to Fig. 6 happens. After repeated actuation of the cooking zone switch 53, the control panel 52 can again in a z. B. in Figures 6 and 7 type of display to return, in the other modes can be selected.

Of course, the present invention is not limited to the described embodiment, but extends over the entire range of patent claims. For example, both motorized sliding doors are included as well as manually to be moved doors. LIST OF REFERENCES

1 housing

2 wall

3 cooking space

4 viewing window

5 muffles

6 muffle opening

7 bottom door

8 worktop

9 drive motor

10 lifting element

11 control element

12 control panel

13 control circuit

14 ad elements

15 hob

16 hotplate radiators

17 hotplate radiators

18 surface heating elements

19 glass ceramic plate

20 mounting part

21 food support

22 top heaters

23 fans

24 seal

25 traversing panel

25a travel switch upwards

25b Travel switch down

26 traversing panel

26a Travel switch upwards

26b Travel switch down

27 storage unit

30 motor shaft

31 Hall element

32 transducers

33 limit switch 34 left display field

35 middle display field

36 right display field

37 alphanumeric display

38 Temperature unit display

39 level display

40 main switch

41 key button

42 arrow down button

43 arrow I-up button

44 stove lamp button

45 clock button

46 alarm button

47 Information button

48 minus key

49 plus button

50 quick-heat button

51 OK or confirm button

52 control panel

53 cooking zone switch

54 middle display field

55 step display

56 alphanumeric display

PO zero position

P1 between position

P2 between position

PZ end position

Claims

claims 1. cooking appliance with at least one a cooking chamber (3) delimiting muffle (5), with a muffle opening (6), a door (7) for closing the muffle opening (6), a control panel (12) for setting at least two modes, characterized in that the control panel (12) comprises at least one mode selection circuit (42, 43, 51) for switching between at least two of the operating modes. 2. Cooking appliance according to claim 1, characterized in that after switching to a selected in selected mode and activation of the selected mode, at least one associated display unit (35,36,54) is switchable to a suitable for the selected mode representation. 3. Cooking appliance according to one of the preceding claims, which is in the form of a high-installation cooking appliance, characterized in that the muffle opening is a bottom-side muffle opening (6) and the door is a bottom door (7) with a cooking field (15) on its upper side , 4. Cooking appliance according to claim 3, characterized in that the modes include a furnace functionality in a closed state and a hob functionality in an open state. 5. Cooking appliance according to claim 4, characterized in that the hob (15) has at least one cooking point, and the hob functionality is a cooking functions that includes a control of different cooking levels of the respective hob. 6. Cooking appliance according to one of claims 4 or 5, characterized in that the furnace functionality comprises a control of the temperature of the closed cooking chamber (3). 7. Cooking appliance according to claim 6, characterized in that the hob (15) has a cooking position, and the hob functionality is a cooking functions, the control of various cooking levels of this cooking place um- and in that the operating mode selection circuit (42, 43, 53), a further selection circuit (48, 49) and a display (36) are present, wherein in the case of the oven functionality the further selection circuit (48, 49) for setting a temperature in closed cooking chamber (3) is set up and the display (36) indicates the set temperature, and in the cooking functions, the further selection circuit (48,49) is set for setting a cooking level of the cooking area and the display (36) displays a set cooking level , 8. Cooking appliance according to claim 6, characterized in that the hob has two cooking zones, and the hob functionality is a cooking functions that includes a control of different cooking levels of the cooking areas, and in that a switch (53) for switching between at least the furnace functionality and the cooker functionality, a mode switch (42, 43) for switching between further functionalities with associated display (54) and a selector circuit (48, 49) with associated display (36), wherein in the oven functionality the selector circuit (48, 49) is set up to set a temperature in the closed cooking chamber (3) and the associated display (36) indicates the set temperature, and by means of the operating mode circuit (42, 43) the operating mode is adjustable whose parameters are displayed in an associated display (54 ) are displayed, and in the Kochstellenfunktionalität the selector circuit (48,49) to E is set up in a cooking stage of the first cooking station and the associated display (36) is arranged to display the cooking element set at the first cooking position and further the mode circuit (42,43) is set for setting a cooking level of the second cooking area and the associated display (54) is arranged to indicate the cooking level set at the second cooking place. 9. Cooking appliance according to one of the preceding claims, characterized in that the operating mode selection circuit (42,43,53) cyclically switches through the operating modes. 10. Cooking appliance according to one of the preceding claims, characterized in that the operating mode selection circuit (42,43,53) comprises a rotary switch. 11. Cooking appliance according to one of the preceding claims, characterized in that the mode selector circuit (42,43,51) comprises two directional switches (42,43) for an upshift or downshift of the modes. 12. A method for operating a cooking appliance according to one of the preceding features, characterized in that a mode selected by means of a mode selector circuit (42,43,51) durchschaltend and activated by actuating a confirmation circuit. 13. The method according to claim 12, characterized in that after activation of the selected mode, an associated display unit (35,36,54) is switched to the appropriate for the selected mode representation.