Cooking appliance, especially commercial cooking appliance

Abstract

Cooking appliance (1), in particular a commercial cooking appliance, with a housing (2), with a cooking chamber (3), which is arranged in the housing (2), and which has a cooking chamber opening (4) surrounded by a circumferential door seal (5) arranged on the inside of the door and / or in a housing area adjacent to the cooking chamber opening (4), and which can be opened and closed by means of a cooking chamber door (6), wherein the cooking chamber door (6) has an inner pane (7) adjacent to the cooking chamber (3), which rests against the door seal (5) when the cooking chamber door (6) is closed, and an outer pane (8) spaced apart from the inner pane (7), which together with the inner pane (7) defines a cooking chamber door interior (9), and with an optoelectronic sensor (10), characterized in that the optoelectronic sensor (10) is located in a receiving area (11) of the cooking chamber door interior (9) when the cooking chamber door (6) is closed. protrudes, which is arranged outside the door seal (5),- wherein a deflecting device (33;37) is arranged adjacent to the optical sensor (10) in the receiving area (11), wherein the deflecting device (33) is designed as a deflecting plate which is spring-loaded and / or wherein the deflecting device (33) is provided with a cleaning part (36).

Description

[0001] The invention relates to a cooking appliance, in particular in the form of a commercial cooking appliance, according to the preamble of claim 1.

[0002] Such a cooking appliance is known in the form of an oven from EP 2 520 169 A1. In this cooking appliance, a camera is arranged in the oven door to take pictures of the food being cooked in the oven and to make these pictures available to an operator.

[0003] The technical problem with this cooking appliance is that, due to its positioning in the cooking chamber door between an inner pane and an outer pane, the camera can be overheated by the heat radiation from the cooking chamber.

[0004] Therefore, the known cooking appliance is preferably equipped with a plurality of cooling devices, which may include cooling elements, thermal insulation material and cooling channels as well as a partition.

[0005] The disadvantage of this arrangement is therefore that, in order to prevent overheating of the camera located in the oven door, a large number of additional technical precautions must be taken to avoid the overheating described above.

[0006] Another disadvantage to highlight is that attaching cooling elements to one or more door panels can make it more difficult to monitor the temperature of food inside the cooking chamber and in front of the cooking appliance.

[0007] From DE 20 2011 002 570 U1, a device for the heat treatment of food is known, which has at least one sensor for detecting the type of product and the presence of products on a product carrier. This sensor is arranged outside the cooking chamber, in front of the cooking chamber door and above it. Alternatively, it is possible to assign a sensor to each shelf level, which is then connected to the control unit via a corresponding data line.

[0008] From DE 10 2013 114 230 A1 a cooking appliance is also known, on the top of which a flow channel is provided in which an optic, such as a camera, can be arranged.

[0009] The object of the present invention is to create a cooking device of the type specified in the preamble of claim 1 which makes it possible to observe food being cooked inside the cooking chamber and food being cooked outside of the cooking chamber before being placed inside it, and to make this possible in a technical manner.

[0010] This problem is solved by the features of claim 1.

[0011] By arranging the optoelectronic sensor of the cooking appliance according to the invention in a receiving area of ​​the cooking chamber door, located outside the door seal, when the cooking chamber door is closed, the advantage arises that the existing door seal can be used as thermal shielding for the optoelectronic sensor, and that a portion of the interior of the cooking chamber door, which is also already present, can be used as a receiving space for the sensor. Therefore, the cooking appliance according to the invention does not require any additional cooling devices to prevent overheating of the optoelectronic sensor. Furthermore, it is advantageous that an airflow occurs between the inner and outer panes, which can serve as a cooling flow for the optoelectronic sensor without the need for additional cooling devices.In this respect, the disclosure content of DE 10 2004 020 181 is fully incorporated into the disclosure content of the present application by reference.

[0012] This offers the advantage that the cooking device according to the invention makes it possible to create a so-called stacking kit, in which cooking devices can be arranged on top of each other.

[0013] Furthermore, it offers the advantage of an aesthetic design, as no additional parts need to be attached.

[0014] Furthermore, the optoelectronic sensor can detect both the cooking chamber and the area in front of it, allowing monitoring of the food inside the cooking appliance and the food yet to be added. This offers the additional advantages of increased process reliability and improved quality through the provision of core temperature data.

[0015] Furthermore, automated documentation of the processes in the oven and easier compliance with hygiene regulations, such as the "hygiene traffic light", HACCP, can be achieved.

[0016] Furthermore, it is possible to achieve simplified product traceability through image documentation and a reduction in training times for new operating personnel.

[0017] Another advantage is that the cooking device according to the invention makes it possible to document and monitor the goods being cooked, the cooking process and the cooking results.

[0018] Another advantage to highlight is that the cooking appliance according to the invention does not require a cable in the cooking chamber door, which would have to be guided through hinges, which could result in damage to cables and also has the advantage that the design according to the invention is significantly cheaper than designs in which cables have to be laid in the door.

[0019] Furthermore, this offers the advantage of easier maintenance in the event of a service call.

[0020] Finally, with the cooking appliance according to the invention, it is possible to document the condition of the cooking chamber with regard to soiling and hygiene, as well as to monitor the cooking process in the cooking appliance in real time.

[0021] Ultimately, this makes it possible to minimize operator errors.

[0022] In a further particularly preferred embodiment of the cooking appliance according to the invention, it is possible to generate a directed airflow at the end of the cooking program. The directed airflow, which emerges from a gap in the slightly opened cooking chamber door, is generated by a rotary movement of the cooking chamber fan. It is preferred that the airflow is controlled situationally according to the prevailing conditions. Influencing factors can include the appliance type and size, the cooking chamber climate, such as temperature and steam saturation, the load quantity and insertion positions of the trays, as well as the size of the door gap.

[0023] The following factors can be used to control the generation of a directed airflow: - Direction and speed of rotation of the fan, as well as its arrangement in the cooking chamber (to the side or adjacent to the rear wall); - Acceleration and / or deceleration curves; - Lead times before the end of the cooking program as well as drainage geometries and positioning of, for example, deflector plates or deflector sheets; - Optionally, moving parts can also be provided, or door locking systems with closed ventilation positions of the cooking chamber door can be provided.

[0024] The measures described above make it possible to direct the generated airflow so that, for example, a camera attached to or inside the cooking appliance is not soiled, or the airflow is optionally directed into an extractor hood mounted on the appliance. In a further particularly preferred embodiment, it is also possible for the hot steam escaping at the end of the cooking program to not flow towards the operating personnel, but rather be diverted into a safe area above the cooking appliance.

[0025] The appliance control system can preferably be designed such that when the oven door is opened, for example to a ventilation position, the fan is not switched off immediately, but continues to operate for a certain overrun time in order to generate the directed flow of the fumes to be extracted, preferably in conjunction with flow guide devices. Such a fan overrun time can be implemented in the appliance software.

[0026] These measures make it possible to prevent undefined air or steam currents at the end of a cooking program, which can be caused in part by external air currents prevailing at the installation location (hood technology, open windows of the installation room, etc.).

[0027] The dependent claims contain advantageous further developments of the invention.

[0028] Further details, advantages and features of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawing. The drawing shows: Fig. 1 a schematically simplified perspective view of a first embodiment of the cooking appliance according to the invention with a closed cooking chamber door, Fig. 2 one of the Fig. 1 corresponding illustration with the oven door open, Fig. 3 a schematically simplified, partially cutaway representation of a part of a second embodiment of the cooking device according to the invention, Fig. 4 one of the Fig. 3 corresponding representation of a third embodiment of the cooking device according to the invention, Fig. 5 one the Fig. 3 and Fig. 4 corresponding illustrations of a fourth embodiment of the cooking device according to the invention, Fig. 6 one the Fig. 3 to Fig. 5 corresponding representation of a fifth embodiment of the cooking device according to the invention, Fig. 7 one of the Fig. 1 corresponding representation of a sixth embodiment of the cooking device according to the invention, Fig. 8 one the Fig. 3, Fig. 4, Fig. 5 and Fig. 6 corresponding representation of a seventh embodiment of the cooking device according to the invention, Fig. 9 one of the Fig. 1 corresponding representation of an eighth embodiment of the cooking device according to the invention, Fig. 10 a schematically simplified principle representation of a top view of a ninth embodiment of the cooking device according to the invention, Fig. 11 one of the Fig. 1 corresponding representation of a tenth embodiment of the cooking device according to the invention, Fig. 12 one of the Fig. 3 corresponding representation of a part of a further embodiment of the cooking device according to the invention, Fig. 13 one of the Fig. 12. Corresponding illustration of the cooking appliance with the cooking chamber door slightly open, and Fig. 14 to Fig. 16 schematically simplified principle representations of further particularly preferred embodiments of deflection or redirection devices of the cooking device according to the invention for protecting a camera, an optic or a sensor of the cooking device according to the invention.

[0029] Before discussing the principles of the present invention in detail, it should be emphasized that, within the scope of this application, the term "cooking appliance" encompasses both commercial and household cooking appliances, and, more generally, food treatment appliances capable of performing both cold and hot treatment of food, including, for example, hot air steamers, combi steamers, beverage dispensers, beverage mixers, microwave ovens, and other food treatment appliances.

[0030] In Fig. 1 is a highly simplified schematic representation of a cooking appliance according to the invention. 1 depicted as a housing 2 features. Inside the case 2 is a cooking chamber 3 arranged, which in Fig. 2 is visible and one cooking chamber opening 4 exhibits, which also stem from the representation of the Fig. 2 with the oven door open 6is visible. The cooking chamber opening 4 can be done via the oven door 6 opened and closed, for example to place on a cooking tray T arranged cooking food GP into the cooking chamber 3 to introduce or, after the cooking process, to remove from the cooking chamber 3 to be able to remove it.

[0031] The Fig. 1 and Fig. Figure 2 further illustrates the arrangement of a door seal. 5 , which surrounds the four sides of the cooking chamber opening 4 a continuous door seal, which can be seen in particular from the depiction of the Fig. 2 with the oven door open 6 reveals. In the example shown, the door seal 5 on one of the cooking chamber openings 4 adjacent housing area. Alternatively, the door seal can be used. 5 It can also be attached to the inside of the door.

[0032] Out of Fig. 2 further makes it clear that the oven door6 one of the cooking chamber 3 adjacent inner pane 7 features that are present when the oven door is closed 6 on the door seal 5 is located. Furthermore, the oven door 6 one towards the inner pane 7 spaced outer pane 8 on, which with the inner disc 7 a cooking chamber door interior 9 limited.

[0033] The first embodiment of the cooking device according to the invention 1 according to the Fig. 1 and Fig. 2 further features a schematically simplified optoelectronic sensor 10 on, which is when the oven door is closed 6 according to Fig. 1 in a recording area 11 the interior of the kitchen 9 is located outside the door seal 5 is arranged. The door seal 5 This is due to the closed oven door. 6 in Fig. 5 is illustrated with dashed lines, while in Fig. 2 due to the open state of the oven door 6 in its entirety as the described circumferential door seal 5 is visible, with both the Fig. 1 as well as the Fig. 2 illustrate that, due to the representation chosen in these figures, in this case the sensor 10 above the door seal 5 is arranged so that the door seal 5 , which is a component that was already planned, as thermal shielding for the area in the recording area 11 arranged sensor 10 can function.

[0034] The recording area 11 can also be equipped with a viewing window 12 be provided with that in Fig. 2 is visible, as this figure, as mentioned, represents the open state of the oven door. 6 clarifies. The viewing window 12Its inner surface may be anti-reflective to prevent reflections. The outer surface of the viewing window 12 The color can be matched to the surrounding sheet metal of the oven door frame. In the embodiment according to... Fig. 1 and Fig. 2 is the optoelectronic sensor 10 on a housing protrusion 13 arranged on a housing end face 14 is attached and protrudes from it, i.e. into an area in front of the entire front of the cooking appliance 1 protrudes. This arrangement allows the sensor to 10 with the oven door open 6 a detection area E1 cover, which is indicated by the dotted line, in which it is not yet in the cooking chamber 3 food brought in for cooking, such as that in Fig. 1. Food or product shown GP , can be detected. This occurs after the insertion of a cooking tray. Twith the food arranged on it, the oven door 6 When closed, the sensor appears 10 with its housing protrusion 13 into the recording area 11 the interior of the oven door 9 one and is in this state in which the cooking chamber 3 is heated, in front of the heat radiation from the cooking chamber 3 protected. When the oven door is opened, hot air can pass through the optoelectronic sensor. 10 flowing, which is uncritical in the case of the cooking device according to the invention, since this heat exposure is only short-term and the hot air passes by the sensor, thus affecting the optoelectronic sensor. 10 is not noticeably affected.

[0035] Fig. Figure 3 illustrates a second embodiment of the cooking device according to the invention. 1 in a highly simplified schematic partial representation of the cooking appliance 1From this partially cutaway illustration, the design of the oven door will first be shown. 6 more clearly, due to the spacing of the inner pane 7 and the outer pane 8 the interior of the oven door 9 features the oven door 6 For example, it can be swivelled on the housing 2 via a door hinge 30 be articulated.

[0036] Fig. Figure 3 illustrates the closed state of the oven door. 6 , in which the inner disc 7 on the surrounding door seal 5 in an outer edge area of ​​the inner pane 7 rests on this.

[0037] This illustrates Fig. 3 again, that the recording area 11 the interior of the kitchen 9 outside the door seal 5 is positioned so that the door seal also applies in this embodiment. 5 can serve as heat shielding.

[0038] At the in Fig. The second embodiment shown in 3 is an optoelectronic sensor. 10 provided for, which includes a sensor housing 10A and a sensor eye 10B features the sensor housing. 10A is inside the case 2 and outside the cooking chamber 3 arranged, i.e., in a cool area. The sensor eye 10B , which can be, for example, an optical element in the form of an optical lens, is within the recording area. 11 arranged and is also secured by the door seal 5 Thermally shielded. The sensor eye 10B is with the sensor housing 10A in the embodiment according to Fig. 3 via a fiber optic cable 10C connected, so that the sensor housing 10A with the image capture components arranged in this, it is even better protected against thermal stress, since only the sensor eye 10B in the recording area 11is arranged. The optoelectronic sensor 10 It can also be designed as an endoscopy system. The endoscopes used can be rigid endoscopes, flexible endoscopes, or video endoscopes. The basic components of such endoscopes are light sources, light guides, and image guides. The light source has a light guide output connected to a light guide leading to a light guide input on the endoscope shaft. The endoscope also has an eyepiece and a focusing ring. Optical fibers for light transmission, as well as one or more objective lenses and one or more transmission lenses, can be arranged in the shaft of the endoscope. For further details, the content of the Wikipedia page "https: / / de.wikipedia.org / wiki / endoskop" is hereby incorporated in its entirety into the disclosure content of this application by reference.

[0039] Fig. 3 illustrated by the dashed lines E1 and E2the possibility to monitor the cooking chamber 3 as well as the exterior of the cooking appliance 1 , as previously demonstrated by the Fig. 1 and Fig. 2 has been explained.

[0040] The in Fig. 4 third embodiment of the cooking device according to the invention. 1 largely corresponds to that of the Fig. 3 except that in this embodiment two optoelectronic sensors 10 , 10' are provided. The two sensor housings 10A and 10A' are in turn inside the housing 2 , i.e., a cool area of ​​the cooking appliance 1 , arranged and via assigned fiber optic cables 10C , 10C' with sensor eyes 10B and 10B' connected, with the two light guide cables 10C and 10C' in an air gap 15 ends, which are between the casing 2 and the oven door 6is planned. Fig. Figure 4 illustrates that coupling optics 10D and 10D' also in the air gap at the ends of the fiber optic cables 10C and 10C' are positioned opposite each other. The two sensor eyes 10B and 10B' are the endpoints of assigned light guides, with the sensor eye 10B on the inner surface of the outer pane 8 rests on the sensor eye while the sensor eye 10B' on the inner surface of the inner disc 7 rests so that it covers the detection area E1 in the cooking chamber 3 results, while the sensor eye 10B the detection area E2 in the outdoor area of ​​the cooking appliance 1 This results in the following: In this embodiment, the sensor eyes 10B and 10B' preferably be designed as an optical element, such as a lens, in particular a wide-angle lens. Although in the particularly preferred embodiment of the Fig. 4 two optoelectronic sensors 10 , 10' Although both optoelectronic sensors are provided, it is also possible to provide only one of these two sensors in the manner described above. The design of the optics of the cooking device according to the invention is a matter for those skilled in the art in the field of optical systems, particularly endoscopy systems.

[0041] Since in this embodiment the two housings 10A and 10A' already in a cool area of ​​the case 2 To protect against thermal overheating, it is sufficient that in the embodiment according to Fig. 4 the door seal 5 only the uppermost ones in the recording area 11 arranged parts of the two light guides 10B and 10B' protects.

[0042] Fig. Figure 5 shows a fourth embodiment of the cooking device according to the invention. 1 , which are largely the same as those of Fig. 3 corresponds to the optoelectronic sensor. 10 However, in this embodiment, it is entirely contained within the recording space. 11 arranged and interacts with the inner disc 7 together, those with optical eyes 16 , 17 and 18 This results in three detection areas. E1 and E1' in the cooking chamber 3 and E2 outside the cooking appliance 1 These optical eyes 16 , 17 and 18 For example, ground surfaces of the inner pane can 7 his, as can be seen from the graphic representation of the Fig. 5 results.

[0043] Fig. Figure 6 shows a fifth embodiment of the cooking device according to the invention. 1 , which are largely the same as those according to Fig. 3 corresponds. Here too, an optoelectronic sensor is used. 10 provided, whose sensor housing 10A inside the case 2is arranged and connected to the sensor eye via a suitable light guiding device 10B is in an interaction that is in the absorption area 11 is arranged. The special feature of this embodiment is a split prism. 19 , which is inside the oven door 9 is arranged. This prism 9 It has two light emission surfaces or coupling points. 19A and 19B on, which in the case of the decoupling point 19A on the cooking chamber 3 is directed, while the decoupling point 19B on the exterior of the cooking appliance 1 is directed, which in turn determines the detection areas E1 or E2 results.

[0044] The sixth embodiment of the cooking device according to the invention 1 according to Fig. Figure 7 is merely intended to illustrate that it is possible to use an optoelectric sensor. 10 not only above the door seal 5, but also to be arranged to the side of it, as in the example case due to the in Fig. 7 selected representation to the left of the left longitudinal area of ​​the door seal 5 .

[0045] The seventh embodiment of the cooking device according to the invention 1 according to Fig. 8 essentially corresponds to that of the Fig. 3, whereby to achieve two detection ranges E1 and E3 in the cooking chamber 3 a deflecting mirror 20 is provided for, which is located inside the oven door 9 is arranged. This deflecting mirror 20 makes it possible through the detection area E3 also a cooked product GP2 to detect that is located below the cooked product GP1, which is within the detection range E1 is detected. Such a deflecting mirror 20 can be planar or spherical.

[0046] The in Fig. 8 planned optoelectronic sensors 10 It can in turn be structured as shown in the Fig. 3 described, or it could also be a camera located in the recording area 11 is ordered, which is an order according to Fig. 5 corresponds to.

[0047] The eighth embodiment of the cooking device according to the invention 1 according to Fig. 9 essentially corresponds to that of the Fig. 1, where, accordingly, an optoelectronic sensor 10 , for example in the form of a camera, in the housing projection 13 is arranged. This housing protrusion 13 protrudes when the oven door is closed 6 in the receiving area, which is open at the top in this embodiment 11 the interior of the oven door 9 , as can be seen from the presentation of the Fig. 9 opens up.

[0048] The ninth embodiment of the cooking device according to the invention 1according to Fig. 10 serves essentially to illustrate that the optoelectronic sensor 10 , which in turn is in the recording area 11 , through the door seal 5 thermally protected, arranged, via a suitable data line 22 with a device control or device regulation 21 It can be in signal or data connection. This control / regulation 21 can be connected to a user interface via another data line 24 are in active connection, which is located on a device front. 26 of the case 2 This connection of the sensor may be appropriate. 10 Using a control system that in turn communicates with a user interface is of course also technically possible in all other previously described embodiments, which is demonstrated in the previously described embodiments in the Fig. 1, Fig. 2, Fig. 7 and Fig. 9 each through the presentation of the user interface 24 symbolized. As I said, this embodiment of the Fig. 10, however, also in the embodiments of Fig. 3 to Fig. 6 and Fig. 9 possible.

[0049] Fig. Figure 11 shows a final embodiment of the cooking device according to the invention. 1 in a similarly simplified schematic representation. This representation is only intended to illustrate that it is possible to cook in the oven. 3 one or more deflecting mirrors 27 , 28 , 29 to provide for corresponding beam paths, which is symbolized by the dashed lines. Otherwise, the embodiment according to Fig. 11 to one of the embodiments described above in accordance with the Fig. 1 to Fig. 10 trade.

[0050] In Fig. 12 is another particularly preferred embodiment of the cooking device according to the invention. 1 shown in a partial section. In this embodiment, the optical sensor 10 in a case 31 arranged that in the recording room 11 is fixed. How Fig. As illustrated in point 12, this case can 31 with a viewing window 32 be equipped with the optical sensor 10 is arranged opposite each other.

[0051] Furthermore, a deflector plate is required. 33 below the casing 31 in the recording room 11 arranged. This deflector plate (deflector plate) can preferably be transparent, i.e., made of glass, for example. The deflector plate 33 This is used at the end of a cooking process when the oven door is opened. 6 contamination of the optical sensor 10 , in this example, a contamination of the viewing window 32, if such a thing is planned, to prevent it by creating a directed flow S (see also) Fig. 16, which determine the course of the flow S to install a deflector device 37 (illustrates) the one from the cooking chamber 3 to produce escaping plumes that are in Fig. 13 is visible. Fig. 13 shows the oven door 6 in a slightly open state, for example a ventilation position, in which the inner pane 7 from the door seal 5 lifts off, so that it is possible that the current S , which consist of air and the cooked product GP emitted vapors D is formed, specifically at the viewing window 32 , or if there is no viewing window and no housing 31 is intended to be specifically targeted at the optical sensor 10 is diverted so that the optical sensor can be avoided. 10 through the current S or swathes SIt becomes soiled, for example by grease deposits. Furthermore, it illustrates Fig. 13 an additional drain element 41 , which is on the casing 31 adjacent to the viewing window 32 is arranged and, in the example case, at a right angle to the respective housing wall of the housing. 31 protrudes. This makes it possible for fat deposits to form. F in an area outside the viewing window 32 to retain, so that the viewing window 32 is not contaminated by such deposits.

[0052] Fig. Figure 14 shows, in a highly simplified schematic representation, another particularly preferred embodiment of the deflector plate. 33 , which in this case is achieved by a compression spring 35 is pre-tensioned, which, like the deflector plate 33 , in a guided tour 34is guided, for example by a guide sleeve. This makes it possible for the oven door to open slightly. 6 , as this in Fig. As shown in 14, the spring 35 the deflector plate 33 towards an inner housing wall 39 presses so that the deflector plate 33 to the case wall 39 can create. Fig. Figure 14 further illustrates, in a schematically simplified manner, an attack. 42 , which is at the free end of the deflector plate 33 is arranged and in the leadership 34 This attack is planned. 42 works with a stop or a counter-stop 43 at the leadership 34 together and prevents the deflector plate 33 from the leadership 34 can slip out.

[0053] Fig. Figure 15 shows an embodiment of the deflector plate. 33 , which in their free end region40 with a cleaning part 36 , for example in the form of a cleaning pad. Since the cleaning part 36 adjacent to the free end area 40 the deflector plate 33 The cleaning part is arranged 36 with the oven door closed 6 as far as inside the case 2 arranged so that the viewing window 32 , or, if no viewing window is provided, the optical sensor 10 not through the cleaning part 36 is covered. When the cooking chamber is opened 6 , as this in Fig. However, as shown in 15, the cleaning part moves 36 at the viewing window 32 or, if there is no viewing window 32 is intended to be done at the sensor 10 over, that either the viewing window 32 or the sensor 10 through the cleaning part 36 can be cleaned.

[0054] Fig. Figure 16 illustrates an embodiment of a deflector device. 37 in the form of a U-profile, which forms an interior area 38 features in which the optical sensor 10 is at least partially arranged. Of course, the deflector device exists. 37 also either made of transparent material or it has a viewing window, such as the viewing window 32 , provided.

[0055] In addition to the foregoing written description of the invention, explicit reference is hereby made to the graphic representation of the invention in the following for its supplementary disclosure. Fig. 1 to Fig. 16 Reference is made to this. Furthermore, to supplement the disclosure of the present application, the disclosures of EP 2 638 325 B1 and DE 10 2008 031 378 are incorporated in full into the disclosure content of the present application. Reference symbol list 1 Cooking appliance, in particular commercial cooking appliance 2 cases 3 Cooking chamber 4 Oven opening 5 Door seal 6 Oven door 7 inner disc 8 Outer pane 9 Oven door interior 10, 10' optical sensor, especially camera 10A, 10A' Sensor housing 10B, 10B' Sensor eye (optics, optical lens, camera lens) / Endoscopy systems / Optical systems 10C, 10C' Fiber optic cable / Optical fiber cable / Image transmission element 10D, 10D' coupling optics 10E Prism / Deflection Mirror 11 Recording area / Positioning area 12 viewing windows 13 Housing protrusion 14 Housing end face 15 air gap 16, 17, 18 optical eyes (coupling points) 19 prisms 19A, 19B Coupling points 20 deflecting mirrors 21 Device control / device regulation 22 data lines 23 Oven door handle 24 User Interface 25 data lines 26 Device front 27, 28, 29 Deflection mirror 30 door hinges 31 cases 32 viewing windows 33 Deflector plate, deflector sheet, especially transparent 34 Guide, guide sleeve 35 spring 36 cleaning parts, cleaning pads 37 Deflector device in the form of a U-profile 38 Interior 39 inner case wall 40 free end area of ​​33 41 additional drain element 42 Stop on deflector plate 33 43 Stop plate on guide 34 S Swath / Flow T1-T3 Cooking tray GP, GP2, GP2, GP3 food to be cooked, product to be cooked E1, E2, E3 detection areas QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 2520169 A1

[0002] DE 202011002570 U1

[0007] DE 102013114230 A1

[0008] DE 102004020181

[0011] EP 2638325 B1

[0055] DE 102008031378

[0055]

Claims

[1] Cooking appliance (1), in particular commercial cooking appliance - with a housing (2), - with a cooking chamber (3), • which is arranged in the housing (2), and • which has a cooking chamber opening (4) which is surrounded by a circumferential door seal (5) arranged on the inside of the door and / or in a housing area adjacent to the cooking chamber opening (4) and which can be opened and closed by means of a cooking chamber door (6), • wherein the oven door (6) has an inner pane (7) adjacent to the oven chamber (3), which rests against the door seal (5) when the oven door (6) is closed, and an outer pane (8) spaced apart from the inner pane (7), which together with the inner pane (7) defines an oven door interior (9), and - with an optoelectronic sensor (10), characterized by , that - the optoelectronic sensor (10) protrudes into a receiving area (11) of the interior of the oven door (9) when the oven door (6) is closed, and is located outside the door seal (5). [2] Cooking appliance according to claim 1, characterized by , that the recording area (11) is provided with a viewing window (12). [3] Cooking appliance according to claim 1 or 2, characterized by , that at least one, preferably two, optoelectronic sensors (10) is / are arranged on a housing projection (13) of the housing (2) which projects from a device end face (14). [4] Cooking appliance according to claim 3, characterized by , that the housing projection (13) dips into the receiving area (11) when the oven door (6) is closed. [5] Cooking appliance according to any one of claims 1 to 3, characterized by, that the optoelectronic sensor (10) has a sensor housing (10A) and a sensor eye (10B), wherein the sensor eye (10B) is connected to the sensor housing (10A) via a fiber optic cable (10C) and wherein the sensor eye (10B) is located in the receiving area (11) and the sensor housing (10A) is located in the housing (2). [6] Cooking appliance according to claim 5, characterized by , that two sensor housings (10A, 10A') are provided in the housing (2) and two sensor eyes (10B, 10B') are provided in the recording area (11), wherein the sensor housings (10A, 10A') are each coupled with a fiber optic cable (10C, 10C') which extends to an air gap (15) between the housing (2) and the recording area (11). [7] Cooking appliance according to any one of claims 1 to 5, characterized by , that the inner disc (7) is provided with optical eyes (16, 17, 18). [8] Cooking appliance according to any one of claims 1 to 5, characterized by , that a prism (19) is arranged in the interior of the oven door. [9] Cooking appliance according to any one of claims 1 to 5, characterized by , that a deflecting mirror (20) is arranged in the interior of the oven door. [10] Cooking appliance according to any one of claims 1 to 9, characterized by , that the optoelectronic sensor (10) is operatively connected via a data line (22) to a device control / regulation (21) which is arranged in the housing (2). [11] Cooking appliance according to claim 10, characterized by , that the device control / regulation (21) is operatively connected via a further data line (25) to a user interface (24) arranged on a device front (26). [12] Cooking appliance according to any one of claims 1 to 11, characterized by , that deflection mirrors (27, 28, 29) are arranged in the oven door (6) and / or in the oven (3). [13] Cooking appliance according to any one of claims 1 to 12, characterized by, that the optoelectronic sensor (10, 10') is designed as a camera with a camera housing (10A, 10A') and a camera lens as a sensor eye (10B, 10B'). [14] Cooking appliance according to any one of claims 1 to 13, characterized by , that the optical sensor (10) is arranged in a housing (31) which can be fixed in the recording space (11). [15] Cooking appliance according to claim 14, characterized by that the housing (31) is provided with a viewing window (32). [16] Cooking appliance according to any one of claims 1 to 5, characterized by a deflection device (33; 37) which is arranged adjacent to the optical sensor in the recording area (11). [17] Cooking appliance according to claim 16, characterized by , that the deflecting device (33) is designed as a deflecting plate which is spring-loaded. [18] Cooking appliance according to claim 16 or 17, characterized by that the deflector device (33) is provided with a cleaning part (36). [19] Cooking appliance according to any one of claims 16 to 18, characterized by , that the deflector device (37) is designed as a U-profile.

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