DE102010029197A1 - Cooking device, particularly oven, comprises cooking chamber wall and cooking chamber which is limited with drawer levels, where detection unit is provided for detecting occupancy of drawer levels by component part - Google Patents

Abstract

The cooking device (1), particularly oven, comprises a cooking chamber wall (3) and a cooking chamber (4) which is limited with the drawer levels (5). A detection unit (7) is provided for detecting the occupancy of the drawer levels by a component part (2). A separating element (6) is connected with the cooking chamber wall, where the separating element is made of stainless steel.

Description

The invention relates to a cooking appliance, in particular an oven, comprising a cooking chamber wall which limits a cooking chamber with at least one insertion level, and comprising at least one detection means for detecting an occupancy of a rack level by at least one accessory, wherein the at least one detection means at least one accessory without contact Detects separator through and is arranged outside the cooking chamber.

DE 10 2008 022 227 B3 relates to a cooking appliance, comprising a cooking chamber with a plurality of electrically conductive slide-in supports, each defining, in particular vertically spaced, insertion levels in each of which an electrically conductive insert is introduced, wherein the cooking chamber by a cooking chamber door, which comprises at least one viewing window, closable, and at least one capacitive occupancy sensor per insertion level for detecting the occupancy of the respective insertion level is positioned on the viewing window, and a method for contactless detection of the occupancy of insertion levels of such a cooking appliance.

DE 199 54 470 B4 describes a device for operating a cooking oven with a furnace muffle, in which at least one predetermined position at least one extension device and / or insertion device for a food support and / or a food support is removably arranged, comprising (a) a detection device for monitoring the presence or absence at least one pull-out device and / or insertion device for a food support and / or a food support at its or at least one associated position in the oven muffle, (b) a control device connected to the detection device, which operates a pyrolysis cleaning function for pyrolytic cleaning of the oven muffle if the detection device has not detected the presence of at least one of the extension device and / or insertion device monitored by it for a food support and / or the product carrier at the one or more associated positions in the oven muffle t, (c) a signal generator which generates optical and / or acoustic signals to the operating person when detected by the detection device presence of at least one monitored extracting device and / or insertion device for a food support and / or a food support at an associated position in the oven muffle to point out that the affected extension device and / or insertion device for a food support and / or the food support is to be removed from the oven muffle and / or the pyrolysis cleaning function is not in operation.

EP 2 108 890 A2 is based on a cooking appliance device, which may have a warning unit that outputs at least one warning signal in an operating state in which an accessory carrier unit which is unsuitable for a pyrolysis operation is mounted, during a selection and / or during the pyrolysis operation. It is proposed that at least one holding means of the accessory carrier unit which is unsuitable for the pyrolysis operation and at least one holding means an accessory carrier unit suitable for the pyrolysis operation can be provided differently with different codes which can serve as an identification means for the warning unit. The codes can be formed by electronic and / or electromagnetic means and / or particularly advantageously by geometric dimensions of the holding means. The holding means can protrude in the assembled state through muffle side walls and are detected during operation of sensor means of the warning unit. The sensor means are arranged on a side facing away from the cooking chamber sides of the muffle side walls in a protected from inside the cooking chamber during operation temperatures, cold area and are formed by switches which are switched by means of the holding means.

US 7,183,521 B2 describes an oven with a cooking chamber and a removable support structure comprising a sensor in the oven. The sensor provides an indication of absence or presence of the structure, and a furnace controller allows furnace cleaning in response to the indication of the absence of the structure. The support sensor may be any suitable sensor, such as a mechanical switch, located at any suitable position to detect the presence or absence of the support structure. Other possible sensors may include, for example, optical switches, magnetic switches, proximity switches, and ultrasonic switches, as well as applications where the support structure itself closes a circuit. A possible embodiment is that a part of the support structure protrudes through an opening of the cooking chamber when the support structure is in the cooking chamber. The protruding part can then mechanically trigger a switch, which is preferably located outside the cooking chamber.

It is the object of the present invention to overcome the disadvantages of the prior art, at least in part, and in particular to provide a particularly reliable way of detecting a shelf level of an oven accessory.

This object is achieved according to the features of the independent claims. preferred Embodiments are particularly apparent from the dependent claims.

The object is achieved by a cooking appliance, in particular an oven, having a cooking chamber wall or muffle, which limits a cooking chamber with at least one insertion level, and having at least one detection means for detecting an occupancy of a rack level by at least one accessory. The at least one detection means is arranged outside the cooking chamber. Consequently, the at least one detection means can be arranged on a side of the cooking chamber wall facing away from the cooking chamber. As a result, the detection means is not or only slightly exposed to thermal stresses, whereby the detection means can be made less expensive and also error-less prone than in an arrangement within the cooking chamber. In addition, there is the advantage that the recognition means is not visible to a user. Also, an available space for the detection means is large, z. B. compared to an arrangement on a window of a cooking appliance door. Thus, in particular, a detection means with a high (non-flat) design can be used. In addition, an accessory can also be detected with an open cooking appliance door.

The shelf level can by a corresponding configuration of the cooking chamber wall and / or by an arranged on the cooking chamber accessory holder such. B. a slot grid can be provided.

The at least one detection means recognizes at least one accessory without contact, even through a separating element. This results in the advantage that the at least one detection means no longer has any wearing mechanical components. Another advantage is that no protruding plungers on the accessory are necessary. Also, the cooking space wall does not need to be broken to perform the accessory detection.

The separating element can be substantially permeable, in particular for an active medium of the at least one detection means, or can not significantly influence a measurement or scanning carried out by the proximity sensor or only to such an extent that the accessory recognition remains possible. An active medium can be understood in particular to be a non-organic medium, in particular waves (eg light waves, an electromagnetic field, ultrasonic waves), which generates the recognition means and for determining a presence and possibly even a type of the accessory.

The separating element is connected to the cooking chamber wall, so that the cooking chamber remains closed and thereby results in no implementation of the cooking chamber out, which simplifies thermal insulation. The separating element can be connected directly to the cooking chamber wall, z. Example by means of welding or gluing, or indirectly via an intermediate element such as a holder, a heat seal and / or a microwave seal, etc. The cooking chamber wall may in particular have a recess which is at least partially covered by the separating element. The separator may then also be considered or designated as a window.

By detecting the insertion of the accessory in a certain rack level, a suitable cooking program can be selected, or a user can be pointed to an inappropriate shelf level.

In particular, the at least one detection means may comprise any proximity sensor which can detect the presence of an accessory in a racking plane. The proximity sensor can in particular represent a part of a proximity switch. A proximity switch, which can also be called a proximity initiator or proximity switch, may in particular use at least one sensor which is sensitive to an approach, i. H. reacts without direct contact without contact ('proximity sensor'). In particular, without direct contact with the accessory to be detected at an output of the proximity sensor, a switch-like, binary signal, z. B. "accessory recognized / not recognized", are provided. The proximity switch can in particular have at least one sensor and an evaluation logic. The sensor and the evaluation logic can be accommodated in a common housing.

• a) einen induktiven Näherungsschalter, welcher z. B. bei (magnetischen und nichtmagnetischen) metallischen Zubehörteilen reagieren kann;
• b) einen kapazitiven Näherungsschalter, welcher auf elektrisch leitende als auch auf elektrisch nichtleitende Zubehörteile reagieren kann;
• c) einen magnetischen Näherungsschalter (z. B. Reedschalter oder Reedkontakt), welcher z. B. auf einen magnetischen Bereich des Zubehörteils reagieren kann;
• d) einen optischer Näherungsschalter, welcher z. B. auf eine Lichtreflexion von dem Zubehörteil reagieren kann. Das von dem optischen Näherungsschalter verwendete Licht kann sichtbares Licht, IR-Licht und/oder UV-Licht umfassen;
• e) eine Lichtschranke, welche insbesondere eine Unterbrechung eines Lichtstrahles (als dem Wirkmedium) durch ein Zubehörteil auswerten kann. Das von dem optischen Näherungsschalter verwendete Licht kann auch hier sichtbares Licht, IR-Licht und/oder UV-Licht umfassen;
• f) einen elektromagnetischen Näherungsschalter, bei dem eine Annäherung eines Zubehörteils eine Schwingfrequenz von Schwingkreisen ändert, und welcher sowohl auf elektrisch leitende als auch auf elektrisch nichtleitende Werkstoffe reagieren kann.

The at least one proximity switch may include, for example:

• a) an inductive proximity switch, which z. B. can react with (magnetic and non-magnetic) metallic accessories;
• b) a capacitive proximity switch which can respond to electrically conductive as well as electrically non-conductive accessories;
• c) a magnetic proximity switch (eg reed switch or reed contact), which z. B. can react to a magnetic region of the accessory;
• d) an optical proximity switch, which z. B. can react to a reflection of light from the accessory. The light used by the optical proximity switch may include visible light, IR light and / or UV light;
• e) a light barrier, which in particular an interruption of a light beam (as the Active medium) can be evaluated by an accessory. The light used by the optical proximity switch can here also comprise visible light, IR light and / or UV light;
• f) an electromagnetic proximity switch, in which an approach of an accessory changes an oscillation frequency of resonant circuits, and which can respond to both electrically conductive and electrically non-conductive materials.

However, the cooking appliance is not limited to these types of proximity sensors or switches.

It is an embodiment that the cooking chamber wall for the detection means is substantially functionally permeable (ie does not prevent a function of the detection means for detecting an accessory) and the separating element is an integral region of the cooking chamber wall. In other words, the separating element is not an element produced separately from the cooking chamber wall, but the cooking chamber wall as such can at least partially serve as the separating element. Such a configuration is particularly simple, error-prone and inexpensive feasible. This embodiment may be particularly advantageous if the cooking appliance is a steamer or a microwave oven.

In particular, the separating element can be designed as a dividing wall, in particular a substantially flat or plate-shaped dividing wall. This is particularly easy to produce and requires little material and space.

It is a further development that the material of the separating element is permanently heat-resistant with respect to a maximum temperature which can be reached in the cooking chamber, eg. B. at about 400 ° C for a pyrolysefähigen oven.

It is still an embodiment that the cooking chamber wall for a detection means is substantially functionally impermeable and the separating element is inserted into a recess of the cooking chamber wall, in particular substantially tightly inserted, or at least substantially covers the recess. Thus, properties of the cooking chamber wall as such can be selected independently of the properties of the separating element and the recognition means.

It is also an embodiment that the separating element has a low-magnetic or non-magnetic ('non-magnetic') material. A non-magnetic material may include in particular stainless steel, but also glass or ceramic. The non-magnetic material may be substantially continuous or permeable, in particular for an inductive proximity sensor. In particular, an electrically conductive, but non-magnetic separating element may indeed influence an answer of an accessory in an operation of the inductive proximity sensor, but not so far that the accessory detection is prevented. For example, thin stainless steel sheet does not significantly hinder the function of the inductive proximity sensor. Stainless steel has the advantage of good processability and heat resistance at a low cost.

It is still an embodiment that the separating element has an electrically non-conductive material. This results in an even smaller influence on the proximity sensor. Such a partition can be used particularly preferably in connection with an inductive and / or a capacitive proximity sensor. The separating element can, for. As glass, plastic or ceramic.

It is yet a further embodiment that the separating element has a light-transmitting material, for. As glass and / or ceramic, including glass ceramic. Such a separating element can be used, for example, together with at least one optical proximity sensor, in particular an optical proximity switch. Thereby, an optical coding and recognition of a kind of an inserted accessory can be made possible in a particularly simple manner. By 'light' visible light, infrared light and / or ultraviolet light can be understood. The detection means may alternatively or additionally comprise an inductive and / or a capacitive proximity sensor.

In particular, in the embodiment of the separating element made of or with a non-magnetic, but electrically conductive material, in particular metal, the separating element may be an integral region of the cooking chamber wall. For example, the cooking chamber wall can be made as such or made of stainless steel. In particular, the at least one inductive proximity sensor can then be easily attached to or in the vicinity of the cooking chamber wall or muffle, in particular at a height of an associated insertion level. An adaptation of the cooking chamber wall or muffle to the at least one detection means can be particularly low, z. B. include a thinning of serving as the partition wall portion, or it may even be dispensed with an adjustment. Such a cooking appliance may be, for example, a steamer or a microwave oven.

The partition, in particular partition, can be made in a development of or with a non-magnetic material, for. As stainless steel, ceramic or glass, while the Garraumwand is made as such from a magnetic or magnetizable material, for. B. from or with enameled steel. This development can be provided in particular for a cooking appliance in the form of a baking oven.

If the cooking appliance is a microwave oven, whose cooking space wall is typically made of an electrically conductive material, it may be a particular advantage that the separating element as a plate or as a grid, in particular expanded metal mesh, including pinhole, of an electrically conductive, preferably non-magnetic, material , in particular stainless steel, is configured.

In particular, when using a grid, it may be an embodiment that the at least one detection means comprises at least one optical proximity sensor and / or inductive proximity sensor. While the grid is substantially opaque to microwaves, it may be configured to be substantially transmissive to the inductive proximity sensor or proximity switch. The grid may also be translucent and thus serve as a separator for an optical sensor or proximity switch.

For a particularly compact design, the at least one detection means can be accommodated in a lamp housing and be covered against the cooking space by means of at least one light-permeable cover. The translucent cover prevents contamination of a lamp housed in the lamp housing and the proximity sensor and allows thermal separation or insulation of the cooking chamber. The translucent cover may further serve as the separator, e.g. B. in the case of an oven or a steamer. In the case of a microwave oven, the light-permeable cover may be provided in addition to the partition member, in particular in a garraumseitigen positioning relative to the separating element.

The lamp housing may be subdivided into several compartments, wherein at least one light source is accommodated in at least one compartment and at least one detection means is accommodated in at least one other compartment. The lamp housing can then extend in particular vertically or vertically on a lateral cooking chamber wall and / or the rear cooking chamber wall in such a way that at least one compartment in which at least one light source is accommodated is arranged outside a racking level (ie, between two racking levels or between one racking level and the upper or the lower cooking chamber wall), and at least one compartment, in which at least one detection means is accommodated, is arranged at a height of an insertion level.

It is yet another embodiment that each shingling level is assigned at least one detection means. As a result, an assignment of an inserted accessory to a certain insertion level can be made particularly simple and secure.

It is yet a further embodiment that the at least one detection means is arranged on a side facing away from the cooking chamber of a side Garraumwandbereichs. Thus, an accessory over a sufficient length even in a non-stop pushed state safely recognizable. This facilitates, for example, a recognition of a coding. Alternatively or additionally, the at least one detection means may be arranged on a side of a rear wall facing away from the cooking chamber, preferably at the level of a rack-in level.

It is also an embodiment that the recognition means is set up to recognize a coding of the at least one accessory. For coding, an accessory may be equipped with a pattern affecting the active medium, for. B. from non-magnetic and magnetic regions (eg, for a magnetic proximity sensor, light differently reflective or light differently deflecting areas (eg., For an optical proximity sensor) or eddy currents to different thickness permitting areas (eg. By an introduction For example, the accessory can have comb-like extensions or embossments on its edge, which can in particular produce a bit-like coding along the accessory, for example in the manner of a barcode. Baking tray, wire shelf, etc.) are encoded.

It is a special embodiment that the recognition means is set up to recognize a type of accessory. For this purpose, the cooking appliance, for example, have a logic unit which brings the recognized coding with the type of accessories in connection, for. By means of a look-up table linking a bit code to the type of accessory.

It is also an embodiment that the cooking appliance is set up to display setting tips or setting suggestions depending on a detected shelf level of the accessory. For example, the cooking appliance can operate a top heat radiator at a low level Suggest power level or even deactivation if the top shelf level of the accessory is occupied to prevent burning of food by the top heat radiator.

In a further variant, the cooking appliance, for example, then give an indication or a suggestion, if a food support is as the accessory on an upper shelf level and at the same time operating a hot air operation in an upper region of the cooking chamber ('upper hot air') is set in In this case, there is typically not enough space above the food support for effective hot air operation. The proposal could z. For example: "Please set medium or lower hot air". The setting tips or setting suggestions can be made more accurate if z. B. the type of food or the Gargutkategorie is known. The type of food or food category can be set by a user or by a cooking program.

It is an alternative or additional embodiment that the cooking appliance is set up to automatically select a heating mode and / or at least one operating parameter of an operating mode and / or a cooking program depending on a detected shelf level of the accessory. This embodiment may be particularly advantageous if the cooking appliance, the type of food or food category are known. Thus, the cooking appliance can automatically supply or even deactivate one of the radiators (eg top heat radiator or bottom heat radiator) with a lower power, if a shelf level is occupied by the accessory, which is closer to the radiator than intended or recommended. Similarly, the cooking appliance may automatically provide one of the radiators (eg bottom heating radiator or top heat radiator) with a higher power if a shelf level is occupied by the accessory which is farther from the radiator than provided or recommended in the cooking program. Also like the cooking program z. B. automatically change the hot air level, if an accessory is located on a not suitable for this hot air operation shelf level. The automatic selection may be combined with an output of a corresponding message (eg, "Switched to lower hot air") and / or a confirmation of selection by a user ("Switch to lower hot air (Yes / No)".

It is an alternative or additional embodiment that the cooking appliance is adapted to select at least one operating parameter depending on a recognized type of accessory. Thus, at least one operating parameter may be set differently depending on this, and thus a cooking cycle may be varied, whether the accessory z. A deep pan (which may contain more juice, for example) or a shallow pan. Also, the at least one operating parameter may be varied depending on a material of the accessory (glass, enamel, aluminum, etc.) recognized by the coding. The variation or adjustment of the operating parameters can, for. B. via appropriate characteristics. The at least one operating parameter may include, among other things, at least one control parameter. A variation or adjustment of the at least one control parameter can be achieved by adapting a corresponding control curve.

In the following figures, the invention will be described schematically with reference to an embodiment schematically. In this case, the same or equivalent elements may be provided with the same reference numerals for clarity.

1 shows an oblique view from the front of a cooking appliance with an accessory inserted therein;

2 shows as a sectional view in an oblique view a section of the

Cooking appliance and the accessory off 1 ;

3 shows a sectional view in front view of a section of another cooking appliance with an accessory; and

4 shows a section in front view of a section of yet another cooking appliance with an accessory.

1 shows an oblique view from the front of a cooking appliance 1 with an accessory inserted therein in the form of a removable food carrier 2 , The food support 2 is shown partially transparent for clarity. The cooking appliance 1 has a muffle or cooking space wall 3 on which a cooking space 4 laterally (left, right, up, down) and limited to the rear. A front loading opening can be closed by a cooking chamber door, not shown. The cooking appliance 1 has a shelf level 5 on, on which the food support 2 in the oven 4 with a distance to a lower cooking chamber wall 3a and the upper cooking chamber wall 3b can be inserted. The shelf level 5 For example, by not shown support rails in the side walls of the cooking chamber 3c (left cooking chamber wall) and 3d (right cooking chamber wall) or by insertion grid, etc. are provided.

In a recess 9 the left cooking chamber wall 3c is a separator 6 used, and at the height of the shelf level 5 and thus a lateral edge of the baking tray 2 , The separating element 6 For example, with the cooking chamber wall 3c welded, glued or otherwise firmly connected be, if necessary via an at least thermally insulating seal. The separating element 6 thus serves as one for the sensor 7 essentially permeable window in the left cooking chamber wall 3c , The separating element 6 For example, in addition or alternatively in the right cooking chamber wall 3d to be available. 2 shows the cooking appliance 1 and the food support 2 in a vertical section through the separating element 6 ,

On the cooking space 4 opposite side of the separating element 6 at the height of the shelf level 5 is a sensor 7 arranged, which represents a part of a proximity switch and can be connected to a suitable evaluation unit (not shown). By means of the sensor 7 can the food support 2 or another accessory through the separator 6 be detected contactless. The separating element 6 is for the sensor 7 essentially permeable; in other words, the separator affects 6 a function of the sensor 7 for detecting the food carrier 2 or another accessory not essential. The separating element 6 is also with respect to in the oven 4 achievable temperatures heat resistant.

The sensor 7 For example, it may represent or be part of an inductive proximity switch. The separating element 6 For example, be designed plate-shaped or window-shaped and z. B. stainless steel, glass, ceramic or other non-magnetic material. The remaining cooking space wall 3 into which the separating element 6 is used, for example, consist of enamelled steel, especially if the cooking appliance is an oven. The food support 2 can z. B. be a baking tray or a grid.

Alternatively, the sensor 7 For example, represent or be part of a capacitive proximity switch. The separating element 6 can then be configured, for example, plate-shaped or window-shaped and z. B. glass, ceramic or other non-conductive material. The sensor 7 responds to a presence of the food support 2 also by the separating element 6 therethrough.

In a further alternative, the sensor 7 be an optical sensor and represent, for example, a part of an optical proximity switch or be such. The separating element 6 For example, be designed plate-shaped or window-shaped and z. Example of glass, translucent ceramic or other translucent material.

The food support 2 also has an encoding 8th on, here in the form of several lateral recesses, on the basis of which the sensor 7 a kind of food carrier 2 can recognize. Alternatively or additionally, the coding may be a response to the sensor 7 strengthen.

3 shows a section in front view of a section of a cooking appliance 11 in the form of a microwave oven with an accessory inserted therein in the form of a removable food support 12 ,

The example here left cooking chamber wall 13c has a recess 19 on, in which outwardly protruding a lamp holder 20 is used. The lamp holder 20 is with the cooking space wall 13c Microwave-tight connected. In a cooking chamber 14 facing and open cavity 21 the lamp holder 20 There is a lamp (not shown) to illuminate the oven 14 and a, in particular inductive or optical, proximity switch or proximity sensor 17 , The proximity sensor 17 is again at least approximately at the level of the shelf level 15 , As the partition, one serves before the cavity 21 mounted expanded metal mesh 16 made of stainless steel, which is microwave tight and therefore the cavity 21 against in the oven 14 shields located microwaves. On the other hand, the expanded metal mesh 16 for the proximity sensor 17 not tight, so the proximity sensor 17 an approach or presence of the food support 12 or another accessory in the rack level 15 can detect. To protect against contamination (eg fat splashes, fumes or similar) is in front of the expanded metal mesh 16 another glass plate 22 mounted, which also for the proximity sensor 17 is permeable. The glass plate 22 also serves as a thermal insulation of the cavity 21 against the cooking space 14 , The lamp holder 20 can be ventilated.

4 shows a section in front view of a section of a cooking appliance 31 in the form of z. B. a microwave oven, oven or steamer with three superimposed shelf levels 35 a cooking chamber 34 , From the three shelf levels 35 The upper two are each with an accessory in the form of a food support 32 busy.

Both the left cooking chamber wall (not shown) and the right cooking chamber wall shown 33 . 33d each have a vertical over the insertion levels 35 extending recess 39 into which a lamp housing 40 is used. The cavity 41 the lamp holder is by partition walls 43 alternately into several vertically superimposed compartments 44a . 44b . 44c divided. In the departments 44a is at least one light source 45 housed in the departments 44b is at least one proximity sensor 37 for a respective rack level 35 accommodated. The lowest department 44c is free. The proximity sensors 37 can have their own evaluation logic or be coupled together with a common evaluation logic.

The sections 44a are vertically outside a shelf level 35 is arranged (ie, between two levels of insertion 35 or between a shelf level 35 and the upper cooking chamber wall 33b ). The sections 44b , are each at a height of an associated shelf level 35 arranged.

Of course, the present invention is not limited to the embodiments shown.

Thus, in general, several insertion levels and / or more than one proximity switch per insertion level can be present.

Also, other electrically operated cooking appliances can be used.

LIST OF REFERENCE NUMBERS

1

Cooking appliance

2

food support

3

cooking chamber

3a

lower cooking chamber wall

3b

upper cooking chamber wall

3c

left cooking chamber wall

3d

right cooking chamber wall

4

oven

5

Shelf position

6

separating element

7

sensor

8th

coding

9

recess

11

Cooking appliance

12

food support

13

cooking chamber

13c

left cooking chamber wall

14

oven

15

Shelf position

16

expanded metal

17

Proximity sensor

19

recess

20

lamp bracket

21

cavity

22

glass plate

31

Cooking appliance

32

food support

33

cooking chamber

33a

lower cooking chamber wall

33b

upper cooking chamber wall

33d

right cooking chamber wall

34

oven

35

Shelf position

37

Proximity sensor

39

recess

40

lamp housing

41

cavity

43

partition wall

44a

Department

44b

Department

44c

Department

45

light source

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008022227 B3 [0002]
• DE 19954470 B4 [0003]
• EP 2108890 A2 [0004]
• US 7183521 B2 [0005]

Claims (15)

Cooking appliance ( 1 ; 11 ; 31 ), in particular oven, comprising a cooking chamber wall ( 3 ; 13 ; 33 ), a cooking space ( 4 ; 14 ; 34 ) with at least one insertion level ( 5 ; 15 ; 35 ), and having at least one recognition means ( 7 ; 17 ; 37 ) for detecting an occupancy of a rack level ( 5 ; 15 ; 35 ) by at least one accessory ( 2 ; 12 ; 32 ), wherein the at least one recognition means ( 7 ; 17 ; 37 ) at least one accessory ( 2 ; 12 ; 32 ) contactlessly by a separating element ( 6 ; 16 ; 36 ) and outside the cooking chamber ( 4 ; 14 ; 34 ), characterized in that the separating element ( 6 ; 16 ; 36 ) with the cooking chamber wall ( 3 ; 13 ; 33 ) connected is. Cooking appliance according to claim 1, characterized in that the cooking chamber wall for the detection means ( 7 ; 17 ; 37 ) is substantially permeable and the separating element is an integral region of the cooking chamber wall. Cooking appliance ( 1 ; 11 ; 31 ) according to claim 1, characterized in that the cooking space wall ( 3 ; 13 ; 33 ) for the detection means ( 7 ; 17 ; 17 ) is substantially impermeable and the separating element ( 6 ; 16 ; 36 ) a recess ( 9 ; 19 ; 39 ) of the cooking space wall ( 3 ; 13 ; 33 ) at least substantially covers. Cooking appliance ( 1 ; 11 ; 31 ) according to one of claims 2 or 3, characterized in that the separating element ( 6 ; 16 ; 36 ) has a non-magnetic material, in particular stainless steel. Cooking appliance ( 1 ; 11 ; 31 ) according to claim 4, characterized in that the separating element ( 6 ; 16 ; 36 ) has an electrically non-conductive material. Cooking appliance ( 1 ; 11 ; 31 ) according to claim 5, characterized in that the separating element ( 6 ; 16 ; 36 ) has a translucent material Cooking appliance ( 1 ; 11 ; 31 ) according to one of claims 4 to 6, characterized in that the at least one detection means ( 7 ; 17 ; 37 ) has at least one inductive proximity sensor and / or at least one capacitive proximity sensor. Cooking appliance ( 1 ; 11 ; 31 ) according to claim 6, characterized in that the at least one recognition means ( 7 ; 17 ; 37 ) has at least one optical proximity sensor. Cooking appliance ( 11 ; 31 ) according to one of claims 7 or 8, characterized in that the cooking appliance ( 11 ; 31 ) is a microwave oven and the separating element as a plate or as a grid ( 16 ), in particular expanded metal, made of an electrically conductive material, in particular stainless steel, and the at least one detection means ( 17 ; 37 ) has at least one optical proximity sensor and / or inductive proximity sensor. Cooking appliance ( 11 ; 31 ) according to one of the preceding claims, characterized in that the at least one recognition means ( 17 ; 37 ) in a lamp housing ( 20 ; 40 ) is housed and against the cooking space ( 14 ; 34 ) by means of at least one translucent cover ( 22 ; 36 ) is covered. Cooking appliance ( 31 ) according to claim 10, characterized in that the lamp housing ( 40 ) into several departments ( 44a . 44b . 44c ), whereby in at least one department ( 44a ) at least one light source ( 45 ) and in at least one other department ( 44b ) at least one detection means ( 37 ) and where at least one department ( 44a ), in which at least one light source ( 45 ), outside a rack level ( 35 ) and at least one department ( 44b ), in which at least one detection means ( 37 ), at a height of a shelf level ( 35 ) is arranged. Cooking appliance ( 1 ; 11 ; 31 ) according to one of the preceding claims, characterized in that each insertion level at least one detection means ( 7 ; 17 ; 37 ) assigned. Cooking appliance ( 1 ; 11 ; 31 ) according to one of the preceding claims, characterized in that the at least one recognition means ( 7 ; 17 ; 37 ) at one of the cooking space ( 4 ; 14 ; 34 ) side facing away from a side Garraumwandbereichs ( 3c ; 13c ; 33d ) is arranged. Cooking appliance ( 1 ; 11 ; 31 ) according to one of the preceding claims, characterized in that the recognition means ( 7 ; 17 ; 37 ) for detecting a coding of the at least one accessory ( 2 ; 12 ; 32 ), and in particular to identify a type of accessory ( 2 ; 12 ; 32 ) is set up. Cooking appliance ( 1 ; 11 ; 31 ) according to claim 14, characterized in that the cooking appliance ( 1 ; 11 ; 31 ) is set up, depending on a detected shelf level ( 5 ; 15 ; 35 ) of the accessory ( 2 ; 12 ; 32 ) To display setting tips or setting suggestions; - depending on a detected rack level ( 5 ; 15 ; 35 ) of the accessory ( 2 ; 12 ; 32 ) automatically select a heating mode and / or at least one operating parameter of an operating mode and / or a cooking program; and / or - depending on a recognized type of accessory ( 2 ; 12 ; 32 ) select at least one operating parameter.

Images