System consisting of an insulation device and a cooking appliance, and insulation device for a cooking appliance

EP4743711A2Pending Publication Date: 2026-05-20BSH HAUSGERATE GMBH
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
BSH HAUSGERATE GMBH
Filing Date
2024-07-11
Publication Date
2026-05-20

AI Technical Summary

Technical Problem

Cooking appliances, especially those with pyrolysis functions, face challenges in protecting measuring devices from high temperatures, as conventional thermal protection methods are inadequate for temperatures above 500 °C, leading to potential damage or failure.

Method used

A system comprising a cooking appliance with a dome-shaped receptacle for the sensor system and a reversibly insertable insulation device, featuring a conical geometry and sealing contact, which shields sensors from high temperatures and can be automatically detected for correct positioning, ensuring effective thermal protection during pyrolysis processes.

Benefits of technology

The solution provides robust thermal protection for sensors, preventing damage during high-temperature pyrolysis operations by effectively sealing the sensor system from extreme heat and ensuring accurate detection of the insulation device's correct positioning, thus ensuring reliable measurement data collection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a system consisting of a, more particularly pyrolytic, cooking appliance (2) having at least one sensor system (14), preferably in the form of at least one camera, in a substantially dome-shaped receptacle (10) in a cooking chamber wall (6) of a cooking chamber (4) of the cooking appliance (2), wherein the sensor system (14) is preferably formed in an opanion (12) of the receptacle (10), and an insulation device (20) having at least one insulation element (24), wherein the insulation device (20) can be reversibly introduced / inserted in the receptacle (10). The invention further relates to a corresponding insulation device (20).
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Description

[0001] System comprising an insulation device and a cooking appliance and insulation device for a cooking appliance

[0002] Description

[0003] Technical area

[0004] The present disclosure relates to a system comprising an insulation device and a cooking appliance, in particular one capable of pyrolysis, as well as an insulation device for a cooking appliance.

[0005] Cooking appliances in various forms, such as ovens, steam cookers, microwave cookers or combination appliances, are used daily in households.

[0006] For sensor-based optimization of cooking processes, it is often necessary to collect measurement data containing information about the type, position, and condition of a food item within the cooking chamber of the cooking appliance. This can, for example, be purely optical measurement data in the form of camera data, such as the degree of browning, or a temperature distribution on a surface of the food item, which can be captured, for example, by an infrared camera. Data on the relative humidity or the oxygen content in the cooking chamber can also be recorded.

[0007] In these cases, it is typically not possible to locate the measuring device outside the cooking chamber or, for example, to separate it from it by a pane of glass without distorting the measurement results. In particular, measuring humidity or oxygen content requires direct contact with the cooking chamber atmosphere. When using an infrared camera, commercially available glasses block the infrared radiation to be measured in the pm range. These glasses are therefore not transparent in the corresponding wavelength range. Special IR-transparent glasses are expensive and, moreover, not always thermally stable (fluorite glasses).

[0008] However, such measuring devices are subjected to high stress, especially at very high temperatures in the cooking chamber, and the risk of damage or premature failure of the measuring devices is significantly increased. This is especially true for cooking appliances equipped with a pyrolysis function. Typical pyrolysis temperatures are 500 °C and above.

[0009] State of the art

[0010] To solve this problem, EP 3 969 817 A1 discloses a cooking appliance with a protective screen that can be pushed in front of a protrusion in a cooking chamber wall of the cooking appliance. The cooking appliance's measuring sensors are pivotably mounted on the protrusion.

[0011] DE 102019 213 485 A1 discloses a cooking appliance with a sensor system in a microwave dome, wherein the dome can be closed off from the cooking chamber by a plate-shaped shield in order to reduce thermal stress on the sensor system during conventional cooking.

[0012] DE 102010 003 107 A1 discloses a cooking appliance with a sliding shutter that can be moved along a cooking chamber wall to protect a thermally sensitive component. This shutter can optionally be moved automatically via a control mechanism.

[0013] The disadvantage of such solutions is that the thermal protection is only limited and is only suitable for conventional heating methods in regular cooking operations up to, for example, 230 °C.

[0014] Brief description of the invention

[0015] The object of the present invention is to provide thermal protection for measuring devices in a cooking appliance (possibly with a microwave function) for high temperatures. The thermal protection is intended to protect the measuring devices from damage and failure during a pyrolysis function at typical pyrolysis temperatures of 500 °C and above.

[0016] This object is achieved by a system according to independent claim 1 and by an insulation device according to the independent claim. Advantageous further developments are described in the subclaims and below. Specifically, the object is achieved by a system comprising a cooking appliance, in particular a pyrolysis-capable cooking appliance, having at least one sensor system, preferably in the form of at least one camera, in a substantially dome-shaped recess or receptacle in a cooking chamber wall of a cooking chamber of the cooking appliance, wherein the sensor system is preferably formed in an opening of the recess or receptacle, and a (thermal) insulation device having at least one insulation element, wherein the insulation device can be reversibly introduced or inserted into the recess or receptacle.

[0017] In other words, the problem is solved by the system comprising the cooking appliance, for example in the form of an oven, a microwave, a steam cooker, or a combination appliance. The cooking appliance contains the cooking chamber, which is delimited by a cooking chamber wall and a door. The cooking chamber wall includes the cooking chamber ceiling on an upper side of the cooking chamber. The essentially dome-shaped receptacle is preferably formed in the cooking chamber ceiling. Dome-shaped is understood to mean a geometry that extends away from the cooking chamber, in particular dome-shaped, pyramid-shaped, or cylindrical. The sensor system is formed in the receptacle. The sensor system is preferably formed in the opalion of the receptacle. The opalion is understood to mean the highest point of the receptacle. In other words, the opalion is the point of the receptacle that is furthest away from the cooking chamber.In alternative embodiments, the sensor can also be arranged in positions other than the opening, or more than one sensor can be formed in the receptacle. The receptacle thus forms a free space accessible from the cooking chamber. The insulation device can be reversibly inserted into the receptacle and thus into the free space formed by the receptacle. In other words, a user can insert the insulation device into the receptacle and release / remove it from the receptacle.

[0018] The cooking appliance preferably has a pyrolysis function. Pyrolysis is the thermal decomposition of chemical compounds, particularly organic food residues. Temperatures of over 500°C can occur in the cooking chamber.

[0019] The insulation device is provided and designed to shield the cooking appliance's sensors in the receptacle from the high temperatures / hot gases occurring in the cooking chamber, particularly during pyrolysis. The insulation device with the at least one insulation element thus forms a protective device for the cooking appliance's sensors, which can be inserted into the receptacle by the user before starting a pyrolysis program. After completing the pyrolysis program, the user can remove the insulation device from the receptacle so that the sensors can monitor the cooking chamber during a cooking process.

[0020] In one aspect, the at least one insulation element of the insulation device can be introduced substantially completely into the preferably dome-shaped receptacle.

[0021] In other words, the at least one insulation element can be introduced completely, in particular without any protrusion, into the free space formed by the receptacle and accessible from the cooking chamber.

[0022] In a further aspect, the insulation device and in particular the at least one insulation element of the insulation device can have a geometry adapted to the receptacle, ie be adapted in shape and size to the receptacle.

[0023] In other words, the insulation device and in particular the at least one insulation element can have an outer geometry which is matched to an inner geometry of the receptacle or an inner geometry of the free space of the receptacle such that the insulation device fills the receptacle at least in sections and preferably (thermally) seals it.

[0024] By designing the insulation device in this way, the insulating effect of the insulation element and thus the protection of the sensors against the high temperature occurring in the cooking chamber can be further improved.

[0025] In a further aspect, the at least one insulation element of the insulation device can sealingly contact an inner surface of the dome-shaped receptacle, preferably circumferentially.

[0026] In other words, a preferably circumferentially sealing (surface) contact can be formed / exist between an outer peripheral surface / a lateral surface of the insulation element of the insulation device and the inner surface of the dome-shaped receptacle when the insulation device is inserted into the receptacle. In a further aspect, the receptacle can taper, starting from the cooking chamber in a direction away from the cooking chamber. Specifically, a cross-sectional area of ​​the receptacle can decrease in a direction away from the cooking chamber.

[0027] By designing the holder in this way, a self-centering effect of the insulation device can be achieved when inserted into the holder. Furthermore, the holder can function as a microwave trap if the cooking appliance is equipped with microwave functionality. By designing the holder as a microwave trap, the sensors can be protected from microwave radiation. In addition, the conical geometry of the holder allows for the largest possible detection range for the sensors.

[0028] In a further aspect, the cooking appliance can include at least one locking geometry and the insulation device can include at least one fixing element matched to the locking geometry, wherein the locking geometry is provided and designed to receive the at least one fixing element of the insulation device, in particular in a form-fitting manner.

[0029] In other words, the cooking appliance can include at least one locking geometry in or on the receptacle or in or on the cooking chamber ceiling, which is provided and designed to accommodate the fixing element of the insulation device in such a way that the insulation device is reversibly fixed in the receptacle. The fixing element and the locking geometry can be coordinated such that a minimum force applied by the user is required to release / remove the insulation device from the receptacle.

[0030] In a further aspect, the cooking appliance may include an insulation device detection device which is provided and designed to detect a presence of the insulation device and / or a correct positioning / a predetermined fit of the insulation device in the receptacle.

[0031] In other words, the cooking appliance of the system according to the invention can include the insulation device detection device. The insulation device detection device detects whether the insulation device is properly inserted into the receptacle. The insulation device detection device can check or query the proper positioning of the insulation device, for example, before starting the pyrolysis program and / or in predefined cycles during the pyrolysis program.

[0032] Such an isolation device detection device can ensure that the sensor is not damaged during the pyrolysis process.

[0033] In a further aspect, the insulation device detection device can be configured with an alarm output unit, for example, a loudspeaker, an LED, a screen, or the like, and can output an alarm if the insulation device detection device detects a missing and / or incorrect positioning of the insulation device in the receptacle during or at the start of the pyrolysis program. Alternatively or additionally, the insulation device detection device can interrupt the pyrolysis program in this case or prevent the pyrolysis program from starting.

[0034] In a further aspect, the insulation device detection device can include at least one camera, preferably an infrared camera. The camera of the insulation device detection device can preferably be the camera used as the sensor for monitoring the food during cooking.

[0035] Alternatively or additionally, the insulation device detection device may include a light barrier and / or a proximity sensor and / or an ultrasonic distance sensor and / or an electrical contact.

[0036] In a further aspect, the insulation device may be formed in one piece.

[0037] In other words, the fixing element and the at least one insulating element of the insulating device can be firmly connected to one another. Alternatively, the insulating element and the fixing element can be at least two separately formed elements, which together form the insulating device.

[0038] In a further aspect, the insulation element can be formed from a material that is thermally non-conductive or only very slightly conductive, such as micanite, ceramic, ceramic foam, glass, fiberglass fabric, or firebrick. Alternatively or additionally, the insulation element or insulation device can be formed as a metallic hollow body filled with an insulating material.

[0039] In a further aspect, the fixing element can be designed as a bayonet lock and / or at least one spring-loaded locking ball and / or at least one locking hook, wherein the fixing element and the locking geometry of the receptacle are coordinated with one another. Thus, depending on the fixing element, the locking geometry can be designed as a slot-shaped recess, a hole-shaped recess, a formed sheet metal element, and / or the like.

[0040] In a further aspect, the insulation device can include at least one handle, which is provided and configured to be gripped by the user to remove the insulation device from the receptacle or to insert the insulation device into the receptacle. The at least one handle can be a metal strip, a hook, or a recess in the insulation device. In particular, the handle can be recessed into the insulation device so that it can be easily grasped by the user, but the handle contour does not protrude beyond the contour of the insulation device.

[0041] In a further aspect, the insulation device may have at least one alignment geometry which penetrates the insulation device, preferably in a direction parallel to a central axis.

[0042] In other words, the insulation device can include an alignment geometry, in particular in the form of at least one bore, which completely penetrates the insulation device, i.e. the insulation element and / or the fixing element.

[0043] By means of such an alignment geometry, the insulation device detection device can determine, for example based on the incidence of light on the sensor, whether the insulation device is (correctly) inserted into the receptacle and / or whether the insulation device is inserted into the receptacle in the correct orientation.

[0044] In a further aspect, more than one alignment geometry can be arranged in the insulation device, wherein the more than one alignment geometry can be arranged asymmetrically to a central axis of the insulation device. Preferably, three alignment geometries are formed in the insulation device, two of which can be arranged side by side in a pair, and the third alignment geometry can be arranged at a distance from the pair.

[0045] In a further aspect, the fixing element of the insulation device can be firmly connected to the cooking appliance and the insulation element of the insulation device can be designed to be removable from the cooking appliance.

[0046] In a further aspect, an automatic folding and / or pivoting mechanism can be provided, which is provided and designed so that the insulation device is automatically inserted into the receptacle, for example when the pyrolysis program is started and / or when requested by the user.

[0047] Furthermore, the object is achieved by the isolation device for the system according to one of the preceding aspects.

[0048] Of course, every feature of the isolation device described above for the system is also applicable to the isolation device that may also be claimed individually.

[0049] In other words, the object is further achieved by the insulation device, which is provided and designed to be reversibly inserted into a receptacle formed in a cooking chamber wall of a preferably pyrolysis-capable cooking appliance and to insulate a sensor system of the cooking appliance from the cooking chamber, with at least one fixing element, which is provided and designed to reversibly position and fix the insulation device in the receptacle, and at least one insulation element, which is provided and designed to be received, preferably completely, in the receptacle and preferably has a conical geometry.

[0050] Short description of the characters

[0051] Fig. 1 is a schematic sectional view of a system according to the invention comprising a cooking appliance and an insulation device; Fig. 2 is a perspective view of a receptacle in a cooking chamber wall of the cooking appliance;

[0052] Fig. 3 is a perspective view of an insulating element of the insulating device;

[0053] Fig. 4 is a perspective view of a fixing element of the insulation device;

[0054] Fig. 5 is a perspective view of the isolation device inserted into the receptacle in an alternative embodiment;

[0055] Fig. 6 is a perspective view of the receptacle in the cooking chamber wall of the cooking appliance in a further alternative embodiment;

[0056] Fig. 7 is a sectional view of the receptacle in the cooking chamber wall of the cooking appliance in the further alternative embodiment;

[0057] Fig. 8 is a sectional view of the insulation device in the receptacle in the cooking chamber wall of the cooking appliance in a correctly inserted state;

[0058] Fig. 9 is a schematic representation of a camera image in the correctly inserted state;

[0059] Fig. 10 is a sectional view of the insulation device in the receptacle in the cooking chamber wall of the cooking appliance in an incorrectly inserted state;

[0060] Fig. 11 is a schematic representation of the camera image in the incorrectly inserted state;

[0061] Fig. 12 is a schematic representation of the camera image in the correctly inserted state in an alternative embodiment; and

[0062] Fig. 13 shows a schematic representation of another alternative embodiment of the receptacle.

[0063] Description of Embodiments Embodiments of the present invention will be described below based on the accompanying drawings.

[0064] Fig. 1 shows a system according to the invention with a cooking appliance, here in the form of a pyrolysis-capable baking oven 2 with a cooking chamber 4. The cooking chamber 4 is delimited by a cooking chamber wall 6 and a hinged door 8. A microwave dome in the form of a receptacle 10 is formed in an upper side / ceiling of the cooking chamber wall 6. The receptacle 10 is designed as a microwave blocking device / a microwave trap (cut-off waveguide) and tapers conically or pyramidally from the cooking chamber 4. Alternatively, cylindrical or stepped receptacles 10 are also conceivable. Furthermore, receptacles 10 are conceivable which are stepped in sections and / or cylindrical and / or conically or pyramidally shaped. The receptacle has a recess at an opening 12 / a tip of the receptacle 10, on which a measuring device / sensor system in the form of a camera 14 is formed directly or at a slightly recessed location.The camera 14 may preferably be an infrared camera.

[0065] The cooking chamber wall 6 is surrounded by an insulating layer 16, which is preferably glass wool or preferably contains glass wool. This insulating layer 16 insulates the cooking chamber from the outside and, for example, shields sensitive electronics in a housing 18 of the cooking appliance 2 from radiant heat from the cooking chamber 4. In one area of ​​the receptacle 10, no insulating layer 16 is formed in order to allow the camera 14 to view into the cooking chamber 4.

[0066] The system further includes an insulation device 20 according to the invention, which is provided and designed to be inserted into the receptacle 10, starting from the cooking chamber 4, and to shield the camera 14, particularly during pyrolysis, from the temperatures in the cooking chamber 4. During regular cooking, the insulation device 20 is not inserted. Before starting the pyrolysis cycle, the insulation device 20 can be inserted into the receptacle 10, particularly manually, by the user.

[0067] Fig. 2 shows the receptacle 10 in the cooking chamber wall 6 in a perspective, enlarged view. The receptacle 10 extends conically, in the embodiment shown here in a truncated pyramid shape, away from the cooking chamber wall 6. In the embodiment shown here, a bayonet lock 22 is formed in the cooking chamber wall 6, circumferentially surrounding the receptacle 10 or as part of the receptacle 10.

[0068] Fig. 3 shows an insulation element 24 of the insulation device 20. The insulation element 24 is intended and designed to be introduced / inserted into the receptacle 10. In the embodiment shown here, the insulation element 24 has a conical, in particular truncated pyramid-shaped geometry. The insulation element 24 is intended and designed to shield the cooking chamber 4 from the camera 14, in particular thermally. The insulation element 24 can be formed, for example, from micanite, ceramic, ceramic foam, glass, fiberglass fabric, firebrick, or as a metallic (hollow) body, wherein the metallic (hollow) body can be filled with an insulating material.

[0069] Alternatively, the metallic (hollow) body can be formed with an insulating vacuum. The insulating element 24 includes an alignment geometry in the form of through-holes 26, which extend parallel to a central fiber A of the insulating element 24, starting from a base surface 28 of the truncated pyramid-shaped insulating element 24 through the insulating element 24.

[0070] Fig. 4 shows a fixing element 30 of the insulation device 20 with a substantially plate-shaped geometry. The fixing element 30 includes a handle 32, which extends normally away from the plate-shaped geometry of the fixing element 30. The fixing element 30 is provided and configured to engage with the bayonet catch 22 and to positively lock into the bayonet catch 22. The fixing element 30 positively secures the insulation element 24 of the insulation device 20 against falling out of the receptacle 10. The fixing element 30 also includes through-holes 26, which, when inserted, are aligned with the through-holes 26 of the insulation element 24.

[0071] In the embodiment shown here, the insulation device 20 is formed in two parts, comprising the insulation element 24 and the fixing element 30. This means that an operator of the cooking appliance must first insert the insulation element 24 into the receptacle 10 and then fix the insulation element 24 in the receptacle with the fixing element 30 in such a way that the fixing element is locked into the bayonet lock by turning it.

[0072] Fig. 5 shows the fixing element 30 inserted and locked in the bayonet lock 22 of the receptacle 10 in a first alternative embodiment. The fixing element 30 closes the receptacle 10 in the cooking chamber wall 6, essentially flush with the cooking chamber wall 6. In the inserted state, the handle 32 projects normally into the cooking chamber 4. In the alternative embodiment shown in Fig. 5, the receptacle 10 has a frustoconical geometry. With such a round / frustoconical design of the receptacle 10 and the insulation device 20 formed from the insulation element 24 and fixing element 30, separate rotatability of the fixing element 30 and the insulation element 24 is not necessary, so that the insulation device 20 can be formed in one piece / single-piece. In other words, the insulation element 24 and the fixing element 30 are firmly connected to one another and / or are monolithic.

[0073] Fig. 6 shows the receptacle 10 in a further alternative embodiment. The receptacle 10 shown here essentially corresponds to the first embodiment. A repeated description of identical elements is therefore omitted below. In contrast to the first embodiment, the receptacle 10 does not include a bayonet lock 22. Instead, locking points 34 in the form of holes are formed in the receptacle 10, particularly in the conical section of the receptacle 10.

[0074] Fig. 7 shows the receptacle 10 in the further alternative embodiment in a sectional view, wherein the insulation device 20 is inserted into the receptacle 10. The insulation device 20 contains balls 36 as a fixing element 30, each of which is pre-tensioned by a spring 38. In other words, the ball 36, which is held under tension by the spring 38, emerges from the insulation device 20 through a circular opening 40. The radius of the circular opening 40 is smaller than the radius of the ball 36. The locking points 34 in the receptacle 10 enable the balls 36 to engage and thus ensure that the insulation device 20 is locked in the receptacle 10. A handle or recessed grip (not shown) is formed on the insulation device 20, via which handle the insulation device 20 can be removed from the receptacle 10 by overcoming the spring force of the spring 38.

[0075] As an alternative to the ball 36 and spring 38 (ball locks), further / alternative mechanisms can also be used to enable the insulation device 20 to snap into or lock into the receptacle 10. Examples include threads, snap hooks, locking lugs, elastic plug connections, and the like. Fig. 8 shows the insulation device 20 correctly inserted into the receptacle 10 in a schematic sectional view. The section is arranged such that a through hole 26 lies in the cutting plane.

[0076] When correctly inserted, the camera 14 is arranged above the through-hole 26 in the insulation device 20 such that the camera 14 can detect light emitted by a cooking chamber lighting 42. In other words, the camera 14 already present in the oven 2 as a sensor for monitoring the food being cooked is used to check and / or monitor the correct seating of the insulation device 20 in the receptacle 10. The at least one through-hole 26 is positioned and configured in the insulation device 20 such that, when the insulation device 20 is correctly positioned, a continuous light path is provided on the optical axis of the camera 14. To test the correct seating of the insulation device 20, the cooking chamber lighting 42 in the cooking chamber 4 is switched on.Through the direct light path to the cooking chamber illumination 42 or through the scattered light occurring in the cooking chamber 4, the camera 14 can now detect a light point (see Fig. 9). The image captured by the camera 14 can be (automatically) evaluated and indicates whether the insulation device 20 is correctly positioned in the receptacle 10.

[0077] Fig. 10 shows an incorrect / wrong fit of the insulation device 20 in the receptacle 10. Specifically, the bayonet lock 22 is only locally engaged. If the insulation device 20 is incorrectly fitted, the light incidence / light path to the camera 14 is interrupted. This can be determined from the camera image (see Fig. 10). If the insulation device 20 is incorrectly fitted, the thermal insulation of the insulation device 20 may be significantly reduced, which can lead to damage to the camera 14 during a pyrolysis process.

[0078] If the isolation device 20 is not inserted at all, this can also be detected by the camera 14. The light incidence / light path fills the entire camera image.

[0079] If the camera 14 or a downstream evaluation unit determines that the insulation device 20 is inserted incorrectly or not at all, an error message can be output to the user and the pyrolysis process can be stopped until the correct seating of the insulation device 20 is confirmed by the camera 14 or the downstream evaluation unit. As shown in Fig. 3 and Fig. 4, a plurality of asymmetrically arranged through-holes 26 can be formed in the insulation device 20. By means of a plurality of asymmetrically arranged through-holes 26 in the insulation device 20, the correct positioning of the insulation device 20 in the receptacle 10 can be detected even more precisely, and the asymmetrical distribution of the through-holes 26 can additionally verify a correct insertion direction or insertion orientation (see Fig. 12).This is particularly necessary if the receptacle 10 and the insulation device 20 do not have a conical, self-centering shape.

[0080] The camera 14 can be configured as an infrared camera or an additional infrared camera can be configured. If the insulation device 20 is correctly inserted, the temperature measured by the infrared camera will not change or will change only slightly during the first few minutes of the pyrolysis process due to the good insulation properties of the insulation device 20. However, if the measured temperature increases significantly, this indicates that the insulation device 20 is missing or poorly fitted.

[0081] When dimensioning the through holes 26, a tolerance chain for positioning and changes over the lifetime of the cooking appliance must be taken into account to prevent false detections. On the other hand, the smallest possible cross-section should be aimed for to avoid thermal bridges. For example, the diameter of the through holes 26 should preferably be less than 1 cm.

[0082] A check for the presence or correct seating of the insulation device 20 in the receptacle 10 can be repeated not only at the beginning of the pyrolysis process, but also during the pyrolysis process, preferably cyclically. This ensures that the insulation device 20 is consistently in the correct position and has not accidentally become loose and / or displaced.

[0083] Fig. 13 shows a further alternative embodiment of the fixing element 30. Here, the fixing element 30 is slidably mounted on the holder 10. In other words, the fixing element 30 forms a type of sliding door on the cooking chamber ceiling. The insulation element 24 is inserted into the holder 10, and the fixing element 30 is pushed / pulled into a closed position to hold the insulation element 24 in the holder 10. During regular cooking operation, the fixing element 30 can be positioned in a pocket 44 formed in / on the cooking chamber wall 6. The fixing element 30 can include a handle 32 that facilitates pushing / pulling the fixing element 30. Alternatively or additionally, the fixing element 30 can be designed with a drive that drives the fixing element 30 and / or opens and closes it automatically.In particular, but not exclusively, in combination with the automatic fixing element 30, additional detectors such as microswitches, light barriers, light reflection evaluations, capacitive or inductive proximity sensors and / or distance sensors are also conceivable for verifying the presence or correct positioning of the insulating element 24, as are electrical contacts between which the insulating element 24 closes a current flow. Likewise, through holes, such as holes 26 in the insulating element 24, can be provided in the fixing element to keep the optical passage axis clear.

[0084] In principle, it is also possible for the fixing element 30 to take over the function of the insulation element 24 due to its heat-insulating material and for the cooking chamber to be sufficiently closed by simply moving the fixing element 30.

[0085] List of reference symbols

[0086] 2 ovens

[0087] 4 Cooking chamber

[0088] 6 Cooking chamber wall

[0089] 8 Door

[0090] 10 recordings

[0091] 12 Opanion / Lace

[0092] 14 Camera

[0093] 16 Insulation layer

[0094] 18 housings

[0095] 20 Isolation device

[0096] 22 bayonet lock

[0097] 24 Insulation element

[0098] 26 through hole

[0099] 28 floor space

[0100] 30 Fixing element

[0101] 32 handle

[0102] 34 rest point

[0103] 36 balls

[0104] 38 spring

[0105] 40 Opening

[0106] 42 Cooking chamber lighting

[0107] 44 bag

[0108] A medium fiber

Claims

Claims 1. System comprising a cooking appliance (2), in particular one capable of pyrolysis, having at least one sensor system (14), preferably in the form of at least one camera, in a substantially dome-shaped receptacle (10) in a cooking chamber wall (6) of a cooking chamber (4) of the cooking appliance (2), wherein the sensor system (14) is preferably formed in an opening (12) of the receptacle (10), and an insulation device (20) having at least one insulation element (24), wherein the insulation device (20) can be reversibly introduced into the receptacle (10).

2. System according to claim 1, characterized in that the at least one insulation element (24) of the insulation device (20) can be introduced substantially completely into the dome-shaped receptacle (10).

3. System according to claim 2, characterized in that the at least one insulation element (24) of the insulation device (20) contacts an inner surface of the dome-shaped receptacle (10) in a preferably circumferentially sealing manner.

4. System according to one of claims 1 to 3, characterized in that the cooking appliance (2) includes at least one locking geometry (22) and the insulation device (20) includes at least one fixing element (30), wherein the locking geometry (22) is provided and designed to receive and / or fix the at least one fixing element (30) of the insulation device (20), in particular in a form-fitting manner.

5. System according to claim 4, characterized in that the preferably form-fitting fixing element (30) is designed as a bayonet closure and / or at least one spring-loaded locking ball and / or at least one locking hook.

6. System according to one of claims 1 to 5, characterized in that the cooking appliance (2) includes an insulation device detection device, preferably with an (infrared) camera, which is provided and designed to detect a presence of the insulation device (20) and / or a correct positioning of the insulation device (20) in the receptacle (10).

7. System according to claim 6, characterized in that the cooking appliance (2) has a control device which prevents a pyrolysis function of the cooking appliance (2) and / or issues an error message if the insulation device detection device detects no insulation device (20) or an incorrectly positioned insulation device (20) in the receptacle (10) before the start of the pyrolysis function or during the pyrolysis function.

8. System according to one of claims 1 to 7, characterized in that the insulation device (20) is formed in one piece.

9. System according to one of claims 1 to 6, characterized in that the insulation device (20) has at least one alignment geometry (26) which penetrates the insulation device (20).

10. Insulation device (20) for a system according to one of claims 1 to 9, characterized in that the insulation device includes at least one insulation element which includes a thermally insulating material or consists of a thermally insulating material, and the insulation device further includes at least one fixing element which is provided and designed to reversibly fix the insulation device in or on a receptacle.