Built-in oven

Abstract

Built-in oven (1), with an inner housing (12) with at least one first separating element (23) for receiving at least one cooking chamber (31) and with at least one first heating device (22), which is arranged and designed in the vertical direction (Z) below the first separating element (23), to heat at least the cooking chamber (31) from below, and with at least one cooking chamber (31) which is received by the first separating element (23), wherein the first separating element (23) and the first heating device (22) have a gap (34) between them in the vertical direction (Z) and with at least one blower unit (26) which is designed to generate an airflow through the space (34), characterized by the fact that the built-in oven (1) for heating the cooking vessel (3) or the food being cooked from below in the vertical direction (Z) below the pull-out base (20) and moving together with the pull-out (2) has a first heating device (22) in the form of an induction device, wherein in the area of ​​the induction device (22) the pull-out base (20) is designed as a first separating element (23) in the form of a first glass ceramic, wherein the cooking vessel (3) can be placed on the first glass ceramic in the vertical direction (Z) from above, wherein the space (34) is formed in the vertical direction (Z) between the top of the induction coil (24) of the induction device (22) and the bottom of the first glass ceramic, wherein the cooking vessel (3) has no spacers and the cooling airflow flows below the glass ceramic, thereby allowing the induction components to be cooled directly, wherein the built-in oven (1) has a pull-out extension (2) which is designed to be moved in the longitudinal direction (X) in a pull-out direction (A) relative to the inner housing (12) of the built-in oven (1) towards a user and in the longitudinal direction (X) in an opposite insertion direction (B) relative to the inner housing (12) of the built-in oven (1) away from a user, wherein the inner housing (12) encloses an interior space (11) in which a cooking process can be carried out, wherein in the interior (11) a pull-out shelf (20) of the pull-out (2) is arranged, wherein the cooking chamber (31) and the first partition element (23) are movable together with the pull-out (2), wherein the pull-out base (20) of the pull-out (2) comprises the first heating device (22) and / or the blower unit (26).

Description

[0001] The invention relates to a built-in cooking appliance according to claim 1.

[0002] For the preparation of food, which can also be referred to as goods to be treated or food to be cooked, various kitchen appliances are known, which can also be referred to as built-in cooking appliances. These include hobs on which the food can be cooked in a cooking vessel such as a saucepan, with or without a lid, in a pan and the like, by boiling, frying and the like. For this purpose, the cooking vessel is placed on a cooking zone of the hob and the base of the cooking vessel is heated electrically, inductively and similarly by the cooking zone. The cooking vessel can also be referred to as a cooking vessel, a food carrier or a food holder. In this case, the cooking vessel provides a cooking space for the food, which in the case of pans and pots can be open or closed by means of a lid. A hob is described in the document DE 10 2017 123 771 A1.

[0003] Furthermore, built-in cooking appliances are known which have an immobile, i.e., fixed, cooking chamber formed with the built-in cooking appliance, in which the food to be cooked can be arranged in or on a cooking utensil and cooked with the cooking chamber of the built-in cooking appliance closed. Such a built-in cooking appliance can be, for example, an oven, a steamer, a microwave, a combination appliance comprising an oven with a steamer and / or with a microwave, and the like, as known from the documents JP 2015 025 646 A and US 2017 089 590 A1. Such built-in cooking appliances with a fixed cooking chamber usually have a vertical height of approximately 45 cm, at least in Germany, although ovens with a height of approximately 60 cm are also common.

[0004] Such built-in cooking appliances with a fixed cooking chamber have in common that they have an outer housing which essentially encloses the built-in cooking appliance on the outside and protects its individual components and elements, as well as making them easier to handle together. Within the built-in cooking appliance, an interior space is formed which represents the cooking chamber and is essentially enclosed by an inner housing, also referred to as a cooking chamber muffle or muffle. Between the inner housing and the outer housing, a housing space is formed as an intermediate space, in which functional elements of the built-in cooking appliance, such as a control system or control unit, an electrical power supply and other components which serve the intended use of the built-in cooking appliance can be arranged. In depth from the front, i.e. viewed from the user's perspective, this includes the outer housing, the inner housing and a sheet metal ora front panel together separates the housing space so that the housing space is not accessible to the user.

[0005] A cooking chamber for a cooking appliance is shown in the documents DE 102 41 486 A1 and DE 10 2004 013 045 A1

[0006] The interior of the built-in cooking appliance has a through-opening at the front as an access opening, through which the interior of the built-in cooking appliance is accessible to the user. This allows the user to insert and arrange cooking utensils into the interior of the built-in cooking appliance as its cooking chamber, as well as to remove cooking utensils from the interior of the built-in cooking appliance after the food has been cooked. The access opening can be opened by the user by means of a closure element, for example in the form of a side-hinged door, a downward-hinged flap, or the like, in order to access the interior of the built-in cooking appliance, as described above, or to close the interior of the built-in cooking appliance and carry out the cooking operation or process.Such a closure element can be closed or have a viewing window to allow the user to see into the closed interior of the built-in cooking appliance.

[0007] Such built-in cooking appliances with a fixed cooking chamber are usually designed as built-in appliances or as built-in kitchen appliances in order to be arranged with their outer casing in a space-saving manner and at a height that is easily accessible for the user in the vertical direction in kitchen furniture, such as in built-in cupboards in a kitchen, and to be arranged with their locking element, if necessary additionally with their panel, see above, towards the front of the user, flush with the surfaces of the other built-in cooking appliances, drawers, doors and the like of the kitchen furniture, which can improve the visual impression for the user.

[0008] In addition to the previously described built-in cooking appliances with a fixed cooking chamber, these can also be combined with other built-in kitchen appliances such as warming drawers, vacuum-sealing drawers, and the like, arranged vertically one above the other and / or horizontally next to each other, which can also perform functions in the kitchen. Warming drawers are used, for example, to keep cooked food warm without further cooking and to preheat dishes. Vacuum-sealing drawers allow food to be vacuum-sealed in airtight packaging.

[0009] Such drawers as kitchen appliances are described in the documents DE 10 2013 002 645 A1 and DE 10 2011 101 042 A1 and EP 1 818 620 A1 and are fundamentally similar to the previously described built-in cooking appliances with a fixed cooking chamber, whereby drawers are significantly flatter, i.e. smaller in the vertical direction, and thus have to be pulled forwards out of the kitchen unit by the user in order to allow access to their interior in the vertical direction from above. For this purpose, the movable part of the drawer, which can also be referred to as a pull-out, has a pull-out base which serves to hold, for example, the cooking utensils in the vertical direction from above and can be designed to be movable in depth relative to the inner housing of the drawer, for example via rails arranged laterally in the transverse direction.The pull-out shelf usually has a vertically aligned panel at the front, which closes the interior of the drawer or its access opening when closed.

[0010] Such drawers, also called built-in drawers, usually have a vertical height of approximately 14 cm, at least in Germany. Drawers are usually arranged vertically below a built-in cooking appliance with a fixed cooking space, such as an oven, a steamer, or the like, or in combination with another drawer, one above the other in the vertical direction, but can also be installed individually and independently in a piece of kitchen furniture. Since the installation spaces for built-in kitchen appliances in kitchen furniture, which can also be referred to as niches, usually have a vertical height of approximately 60 cm, at least in Germany, a drawer with a height of approximately 15 cm and a built-in cooking appliance with a fixed cooking space with a height of approximately 45 cm can be used in a modular combination as built-in appliances.

[0011] If a cooking chamber is operated at comparatively high temperatures using such a built-in cooking appliance, which can collectively be referred to as a built-in cooking appliance system, the surfaces of the built-in cooking appliance's interior housing and the cooking utensils in the cooking chamber can also become comparatively hot. This can particularly stress the components of an induction device used for inductive heating of the cooking utensils, thereby impairing their service life or even damaging them.

[0012] The invention addresses the problem of providing a built-in cooking appliance system that protects the components of the built-in cooking appliance, in particular the components of an induction device of the built-in cooking appliance, from thermal damage or impairment despite the comparatively high temperatures of the cooking process. This should be implemented in a way that is as simple, space-saving, cost-effective, durable, robust, and / or easy to clean as possible. At the very least, an alternative to known built-in cooking appliance systems of this type should be created.

[0013] According to the invention, this problem is solved by a built-in cooking appliance having the features of patent claim 1. Advantageous embodiments and further developments of the invention emerge from the following subclaims.

[0014] The invention thus relates to a built-in cooking appliance system. The built-in cooking appliance system comprises, on the one hand, a built-in cooking appliance with an inner housing having at least one first dividing element for accommodating at least one cooking chamber and having at least one first heating device, which is arranged vertically below the first dividing element and is designed to heat at least the cooking chamber from below. Heating by means of the first heating device takes place inductively, for example, using an electric heating element. This allows the food to be heated directly in the cooking chamber or a steam cooking process to be carried out within the cooking chamber.

[0015] The built-in cooking appliance system also comprises a cooking chamber, which is accommodated by the first separating element. A cooking chamber is understood to be a receiving space in which food can be accommodated for cooking. A cooking chamber can be formed, in particular, by a cooking utensil and can be open or closed, as described above. A cooking utensil can be removable from the built-in cooking appliance. Such a cooking chamber can also be formed by a fixed component of the built-in cooking appliance.

[0016] The terms built-in cooking appliance and built-in cooking appliance system are synonyms.

[0017] The built-in cooking appliance further comprises at least one fan unit configured to generate an air flow at least substantially through the intermediate space. For this purpose, the fan unit can convey the air within the inner housing or within the interior of the built-in cooking appliance and specifically introduce it into the intermediate space. However, the fan unit can also be connected to the surroundings of the inner housing, for example, to an intermediate space of the built-in cooking appliance, via a corresponding air supply and from there, introduce comparatively cool air specifically into the intermediate space.

[0018] The present invention is based on the finding that, particularly when a cooking process is carried out at comparatively high temperatures, the high temperatures of the cooking process can have a negative impact on the components of the first heating device. In particular, electronic components of the first heating device, especially in the case of an induction device, can be thermally damaged or at least have their service life reduced.

[0019] According to the invention, the intermediate space and the air flow generated therein create a way to thermally separate the cooking utensil from the first heating device and to sufficiently reduce the transfer of heat from the cooking utensil to the first heating device by convection in order to prevent excessive heating of the first heating device. This allows the components, and in particular the electronic components, of the first heating device to be operated at temperatures for which they are suitable. On the other hand, a comparatively high temperature in the cooking chamber can still be used to carry out the cooking process.

[0020] According to a further aspect of the invention, the intermediate space is formed at least partially, preferably completely, by at least one spacer, which is formed by the first separating element. In this way, the previously described options of one or more spacers on the part of the first separating element can be implemented. Such a spacer can form the intermediate space on the part of the first separating element alone, or this can be done in combination with an additional spacer of the cooking chamber or its cooking utensil and / or with a separate spacer. If the intermediate space is formed solely by at least one spacer of the first separating element, the present invention can be implemented without the cooking chamber or its cooking utensil having to be specifically designed for this purpose. This can involve the use of known cooking chambers orCooking utensils enable the present invention to be implemented.

[0021] According to a further aspect of the invention, the intermediate space is formed at least partially, preferably completely, by at least one separate spacer. Such a separate spacer can form the intermediate space alone, or this can occur in combination with an additional spacer of the first separating element and / or with an additional spacer of the cooking chamber or its cooking utensil. If the intermediate space is formed solely by at least one separate spacer, the present invention can be implemented without having to specifically design the cooking chamber or its cooking utensil, as well as the first separating element.

[0022] In any case, the height of the gap can be adjusted relatively flexibly by using at least one separate spacer and adapted to the respective cooking process or cooking chamber by providing a correspondingly large number of separate spacer variants. However, the disadvantage of this can be the need to store or stow the separate spacers when not in use, which can make it easier to lose the separate spacer.

[0023] The present invention relates to a built-in cooking appliance with an inner housing having at least one first separating element for accommodating at least one cooking chamber and having at least one first heating device which is arranged in the vertical direction below the first separating element and is designed to heat at least the cooking chamber from below, and having at least one cooking chamber which is accommodated by the first separating element, wherein the first separating element and the first heating device have a gap between them in the vertical direction, and having at least one fan unit which is designed to generate an air flow at least substantially through the gap.

[0024] In this way, the present invention can alternatively be implemented by providing the previously described intermediate space not in the vertical direction above the first separating element but below the first separating element. This can be achieved by arranging the first heating device at a corresponding distance in the vertical direction relative to the underside of the first separating element. This intermediate space can also be formed within the first heating device facing the separating element, for example by a spacer provided there, which serves to space, for example, copper windings from the separating element and thereby forms a vertical distance which, according to the invention, can be used as an intermediate space for the air flow. This can reduce the implementation effort accordingly and enable a compact implementation.

[0025] Furthermore, the fan unit must be arranged so that the cooling air flow can be generated in the intermediate space located there. This allows the present invention to be implemented purely in terms of device technology, without the cooking chamber or its cooking utensils having to participate. Accordingly, the present invention can be implemented with known cooking chambers or their cooking utensils without having to adapt them. In particular, an air flow generated by a fan unit, which is usually already present, as a cooling air blower in the rear installation space of the built-in cooking appliance can also be used as the air flow in the intermediate space. In order to generate cooling air for the electronic components in the rear installation space, air is sucked in there and the warm exhaust air is expelled to the front, which can be used according to the invention as the air flow in the intermediate space. Another advantage is that unwanted cooling of the cooking chamber orThe air flow of the cooking utensils can be avoided by arranging a cooking chamber directly on the first separating element.

[0026] According to one aspect of the invention, the cooking chamber has at least one spacer, which separates the cooking chamber from the first dividing element in the vertical direction. As a result, by means of at least one spacer, as described above, an additional distance or an additional gap in the vertical direction can be created between the first dividing element and the cooking chamber or its cooking utensil, which can reduce heat transfer from the cooking chamber to the first dividing element even without air flow by forming an air cushion. This can enable additional thermal protection of the first heating device, since an excessive increase in the temperature of the first dividing element can be additionally prevented.

[0027] According to a further aspect of the invention, the first heating device is an induction device, preferably with at least one induction coil. This allows inductive heating of the cooking chamber or its cooking utensil in the vertical direction from below. A corresponding induction coil can be designed to be as large as the base of the cooking utensil to be used. If necessary, several induction coils can also be used together to inductively heat the cooking utensil.

[0028] According to a further aspect of the invention, the first separating element, preferably a first glass ceramic, is designed to separate the induction device from the interior and to allow the radiation of the induction device to pass through substantially. As a result, the aspects of the corresponding second separating element of the radiation device, which will be described in more detail below, can be transferred to the induction device.

[0029] According to a further aspect of the invention, the built-in cooking appliance comprises at least one second heating device, which is arranged vertically above the cooking chamber and is designed to heat at least the cooking chamber from above. This allows the cooking chamber or the food accommodated therein to be heated vertically from two sides, so that the food in the cooking chamber can be heated more evenly, more intensely, and / or more quickly. This can accordingly increase the quality of the cooking process and / or shorten the duration of the cooking process.

[0030] According to a further aspect of the invention, the second heating device is a radiant device, preferably comprising at least one radiant heater with a heating band. A radiant device is understood to be a device that emits its power primarily through infrared radiators in the form of heat radiation.

[0031] Such a radiation device can also be referred to as radiant heating or heat wave heating.

[0032] This aspect of the present invention is based on the finding that thermal radiation essentially does not heat the ambient air through which it passes, but rather first heats the cooking utensil or food onto which the thermal radiation impinges. The cooking utensil or food can thus be heated directly and as completely as possible by the thermal radiation, as the thermal radiation reaches and heats the cooking utensil or food. In other words, heating by means of thermal radiation does not occur through contact between the cooking utensil or food and the heated ambient air, as with convection, but rather through the direct effect of electromagnetic waves or radiation in the infrared spectral range on the cooking utensil or food.

[0033] According to the invention, the heating of the cooking utensil or the food being cooked can be accelerated by applying heat from below, preferably by induction, to heat the cooking utensil or its base, as well as from above by means of heat radiation onto the cooking utensil or directly onto the food in the case of a cooking utensil that is open at the top. Furthermore, the degree of heating can be increased. This can accelerate the cooking process, enable cooking with greater heat exposure, and / or achieve a more even cooking result.

[0034] For this purpose, at least one radiant heater with a heating strip can be used as the radiation device. In this case, the heating element consists of a freely radiating, corrugated heating strip, which is arranged vertically upright and can thus emit heat radiation via the vertically downward-facing edge toward the interior of the built-in cooking appliance and thus toward the cooking utensils or food. The heating strip is thus narrow horizontally and can therefore be surrounded by comparatively thick thermal insulation, which can minimize heat loss. This can keep the heating strip's warm-up time comparatively short.

[0035] According to a further aspect of the invention, the radiation device has at least one second separating element, preferably as a second glass ceramic, which is designed to separate the radiation device from the interior and to at least substantially allow the radiation of the radiation device to pass through. This can create mechanical protection, in particular for the components of the radiation device that can generate heat radiation. The second separating element can thus close off the radiation device to the outside and be connected at the edges to the inner housing of the built-in cooking appliance, so that at least mechanical protection can be achieved to the extent that a user cannot reach the components of the radiation device behind the second separating element with their hand, with cutlery, with the cooking utensils or the like and thereby damage or destroy them.Preferably, a seal can be provided between the edge of the second separating element and the inner housing of the built-in cooking appliance, so that steam, liquids, grease, and the like can also be kept out of the interior of the radiant device. This allows, in particular, the components of the radiant device that can generate heat radiation to be protected from moisture, grease, and the like.

[0036] Using a second glass ceramic as a second separating element can be advantageous in that the glass ceramic can be highly heat-resistant. The glass ceramic can also be smooth and therefore easy to clean. Furthermore, the glass ceramic can be sufficiently transparent for thermal radiation, allowing the thermal radiation to penetrate the glass ceramic as well as possible and be used primarily or essentially for heating the cookware, as described above.

[0037] According to a further aspect of the invention, the built-in cooking appliance has a pull-out which is designed to be moved longitudinally in an extension direction relative to the inner housing of the built-in cooking appliance towards a user and longitudinally in an opposite insertion direction relative to the inner housing of the built-in cooking appliance away from a user, wherein the cooking chamber and the first separating element are movable with the pull-out, preferably on a pull-out base of the pull-out. In other words, the built-in cooking appliance can be designed in the form of a drawer, which can simplify accessibility to the cooking chamber for the user, since this can be partially or completely pulled out of the inner housing towards the user and can be reached or removed in the vertical direction from above.

[0038] According to a further aspect of the invention, the drawer, preferably a drawer base of the drawer, comprises the first heating device and / or the fan unit. According to a further aspect of the invention, the inner housing comprises the first heating device and / or the fan unit.

[0039] This allows either only the first heating device or only the fan unit or the first heating device and the fan unit to be moved together with the pull-out and thus also with the cooking chamber or its cooking utensils, so that the first heating device and / or the fan unit can exert their effect independently of the positioning of the pull-out.

[0040] If the first heating device is arranged so that it can move with the pull-out, the first heating device can be used and thus the cooking cookware can be heated regardless of the pull-out's position. Accordingly, the cooking process does not need to be interrupted if a user pulls the pull-out out of the interior housing of the built-in cooking appliance toward them, for example, to inspect the food in the cooking chamber. This can allow the cooking process to continue uninterrupted even in this situation. For this purpose, the first heating device can remain connected to fixed electronic components of the built-in cooking appliance, in particular via sufficiently long and flexible electrical connections.

[0041] If, on the other hand, the first heating device is arranged in a stationary manner and thus independently of the pull-out on the inner housing of the built-in cooking appliance, a correspondingly simplified electrical connection can be provided, which can save costs and installation space. In this case, however, pulling out the pull-out by the user leads to an interruption of the heating by the first heating device. In other words, the first heating device can be arranged in a stationary manner on the inner housing of the built-in cooking appliance and cannot be moved with the pull-out. As a result, the cooking utensils cannot be heated if the pull-out is pulled out sufficiently far from the inner housing of the built-in cooking appliance. However, this can shorten and simplify the fixed electrical connection between the first heating device and the corresponding electronic components of the built-in cooking appliance, which can reduce manufacturing and assembly effort and thus keep costs low.

[0042] If the fan unit is arranged so that it can move with the pull-out, the fan unit can be used and thus the air flow can be generated regardless of the pull-out's position. Accordingly, the cooling effect of the air flow does not have to be interrupted when the user pulls the pull-out out of the interior housing of the built-in cooking appliance towards themselves, for example, to inspect the food in the cooking chamber. This can also enable the uninterrupted continuation of the cooling and thermal insulation according to the invention in this situation. For this purpose, the fan unit can remain connected to fixed electronic components of the built-in cooking appliance, in particular via sufficiently long and flexible electrical connections.

[0043] If, on the other hand, the fan unit is stationary and thus arranged independently of the pull-out on the inner housing of the built-in cooking appliance, a correspondingly simplified electrical connection can be provided, which can save costs and installation space. In this case, however, pulling out the pull-out by the user interrupts the generation of the air flow by the fan unit. In other words, the fan unit can be stationary and arranged on the inner housing of the built-in cooking appliance and cannot move with the pull-out. This means that the air flow cannot be generated if the pull-out is pulled out sufficiently far from the inner housing of the built-in cooking appliance. However, this can shorten and simplify the fixed electrical connection between the fan unit and the corresponding electronic components of the built-in cooking appliance, which can reduce manufacturing and assembly effort and thus keep costs low.

[0044] According to a further aspect of the invention, the pull-out, preferably a cover of the pull-out, forms a closed interior of the built-in cooking appliance with the inner housing of the built-in cooking appliance when the pull-out is fully inserted in the insertion direction. This allows the cooking chamber to be visually concealed from the user when the built-in cooking appliance is in use for cooking. This can also keep odors and / or vapors in the closed interior of the built-in cooking appliance, which can prevent any corresponding nuisance from the user. When the built-in cooking appliance is not in use, this can reduce the space required and also avoid any visual disturbance for the user.

[0045] According to a further aspect of the invention, the cooking chamber is formed by a cooking utensil that is designed to be removable from the built-in cooking appliance. This can increase the flexibility of use for the user and, in particular, allows the user to serve the cooked food directly from the cooking utensil.

[0046] According to a further aspect of the invention, the first dividing element is designed to accommodate the cooking chamber by means of at least one positioning instruction and / or by means of at least one positioning device. In other words, the position at which the cooking chamber or its cooking utensil is to be positioned on the first dividing element for the cooking process can be communicated to the user by means of at least one positioning instruction, for example in the form of a visual marking. This can additionally or alternatively be done by means of a positioning device, for example in the form of a haptic marking of this position, which can be implemented, for example, by suitable elevations and / or depressions in the surface of the first dividing element. In any case, this can make it easier for the user to arrange the cooking chamber or its cooking utensil as optimally as possible for the cooking process. In particular, the best possible arrangement of the cooking chamber orof the cooking utensil opposite the first heating device.

[0047] According to a further aspect of the invention, the first dividing element and / or the cooking chamber is / are designed to face one another in order to increase the durability of the accommodation of the cooking chamber on the first dividing element. In other words, by appropriately designing the first dividing element and / or the cooking chamber relative to the other, maintaining the positioning of the cooking chamber on the first dividing element can be improved. In particular, the horizontal positioning of the cooking chamber on the first dividing element can thereby be maintained as well as possible. This can be implemented, for example, by arranging spacers on the underside of the cooking chamber which have an anti-slip coating facing the first dividing element, so that horizontal movement of the cooking chamber relative to the surface of the first dividing element can be significantly hindered due to the comparatively high friction coefficient of the coating.

[0048] According to a further aspect of the invention, the built-in cooking appliance is designed as a built-in cooking appliance. In this way, the features and advantages of the built-in cooking appliance according to the invention can be implemented and utilized in built-in cooking appliances.

[0049] According to a further aspect of the invention, the built-in cooking appliance has a width-spacing dimension with a width in the transverse direction. This allows for a comparatively compact arrangement of the built-in cooking appliance according to the invention in a kitchen unit.

[0050] A width grid dimension refers to the width (i.e., transverse) arrangement of fitted kitchen appliances in a grid pattern, allowing different fitted kitchen appliances from the same or different manufacturers to be seamlessly combined with one another. In other words, certain width dimensions of fitted kitchen appliances are established as standard dimensions, i.e., common and customary, or standardized, in order to maximize the space in kitchen units when combining different fitted kitchen appliances from the same or different manufacturers. These width dimensions of fitted kitchen appliances can be viewed as a grid.

[0051] For example, in the European Union, a standard width grid dimension of 54 cm is common for built-in kitchen appliances so that the built-in kitchen appliance can be arranged between two 20 mm wide side walls of the kitchen unit, also known as cleats, which itself has a width grid dimension of 60 cm. In Switzerland, the width grid dimension for built-in kitchen appliances is 55 cm. In the USA, a width grid dimension of 18 inches, 24 inches, or 36 inches is common for cabinets without built-in kitchen appliances. For built-in kitchen appliances, the grid dimensions including cleats of the surrounding kitchen units of 24 inches and 30 inches have become established, although 36-inch wide ovens are also known, although these are not usually designed as built-in kitchen appliances.

[0052] The built-in cooking appliance has a height within a standardized installation dimension. In particular, the height is intended to be within a range extending from 12 centimeters to 60 centimeters, preferably within a range of 14 centimeters to 35 centimeters.

[0053] According to a further aspect of the invention, the built-in cooking appliance has a vertical height grid dimension with a built-in drawer height that corresponds to a fraction of the width of a width grid dimension. This allows for a particularly compact design of the built-in cooking appliance according to the invention. In particular, this provides a simple way of combining the built-in cooking appliance according to the invention with other standardized built-in cooking appliances in a vertical stack.

[0054] Thus, comparable to the previously described width grid dimension, a height grid dimension means that for the vertical arrangement of fitted kitchen appliances, the fitted kitchen appliances are dimensioned in a grid pattern so that different fitted kitchen appliances from the same manufacturer or from different manufacturers can be seamlessly combined with one another. Standard height dimensions are established as dimensions or grids. Although these are usually manufacturer-dependent, they are in the range of 6 cm to 10 cm and correspond to a fraction, i.e., divided by a natural number, of the width grid dimension.

[0055] Accordingly, it is common practice for fitted kitchen appliances in the European Union for the corresponding installation spaces in the kitchen unit, also known as niches, to have a height grid dimension of 15 cm, 45 cm or 60 cm. Taking into account a floor with a thickness or height of 10 mm or 20 mm, depending on the weight of the fitted kitchen appliance, this results in a height grid dimension of 14 cm, 43 cm or 58 cm for the fitted kitchen appliance itself. In the USA, the niche height for fitted kitchen appliances is usually 24 inches or 30 inches as a grid height dimension, and 6 inches for drawers. Here, too, the height grid dimensions of the fitted kitchen appliances themselves are slightly lower than the height grid dimension of the niche, for example 5 3 / 8 inches for the drawers, so that the fitted kitchen appliances fit into the niches.

[0056] The height and width dimensions of a fitted kitchen appliance are always related to its housing, since a door, a flap, a panel and the like of the fitted kitchen appliance, which faces the user when installed, usually protrudes in width and / or height beyond the studs or the floor of the kitchen unit and thus visually conceals them from the user.

[0057] The present invention also relates to a built-in cooking appliance for a built-in cooking appliance system as described above. This allows a built-in cooking appliance to be provided to implement the previously described built-in cooking appliance system and utilize its features and advantages.

[0058] The present invention also relates to a cooking chamber for a built-in cooking appliance system as described above. This allows a cooking chamber to be provided to implement the previously described built-in cooking appliance system and utilize its features and advantages.

[0059] In other words, the present invention is based on the realization that the surface temperatures of a built-in cooking appliance's housing, especially a drawer, can become very hot due to the heating elements and the high power output. The induction components in the built-in cooking appliance base can be subjected to significant thermal stress if the cooking utensils are at particularly high temperatures.

[0060] According to the invention, the cookware has a spacer, and the cooling air flow flows underneath the glass ceramic. This is advantageous because the cookware is not accidentally cooled down, while the induction components can still be cooled. Furthermore, the cookware's spacers reduce the heating of the glass ceramic.

[0061] In a third preferred variant, the cookware has no spacers, and the cooling air flow flows underneath the glass ceramic. This variant is particularly suitable if the temperature of the cookware is measured and controlled by a temperature sensor through the glass ceramic. With a distance between the cookware and the cooking chamber floor, the temperature signal would be slower, and the control would be delayed and possibly fluctuating. A disadvantage may be that the glass ceramic can heat up more than with a distance. However, the induction components can still be cooled directly.

[0062] Overall, cooling is beneficial for enabling the cookware to operate at particularly high temperatures (over 260°C) without placing excessive thermal stress on the induction components. High temperatures are necessary to achieve particularly good cooking results, for example, with a freshly baked pizza.

[0063] Several embodiments of the invention are shown purely schematically in the drawings and are described in more detail below. Fig. 1 a side sectional view of a built-in cooking appliance system according to the invention according to a first embodiment with the built-in cooking appliance drawer partially extended; Fig. 2 a side sectional view of a built-in cooking appliance system according to the invention according to a second embodiment with the built-in cooking appliance partially extended; and Fig. 3 a side sectional view of a built-in cooking appliance system according to the invention according to a third embodiment with the built-in cooking appliance partially extended.

[0064] The above figures are viewed in Cartesian coordinates. There is a longitudinal direction X, which can also be referred to as depth or length. Perpendicular to the longitudinal direction X extends a transverse direction (not shown), which can also be referred to as width. Perpendicular to both the longitudinal direction X and the transverse direction extends a vertical direction Z, which can also be referred to as height in the vertical direction Z and corresponds to the direction of gravity. The longitudinal direction X and the transverse direction Y together form the horizontal X, Y, which can also be referred to as the horizontal plane X, Y.

[0065] Fig. 1 shows a side sectional view of a built-in cooking appliance system according to the prior art with partially extended drawer 2 of the built-in cooking appliance 1. The built-in cooking appliance 1 according to the invention is considered using the example of a built-in cooking appliance 1.

[0066] The built-in cooking appliance 1 has an outer housing 10, which can also be referred to as the outer housing and which essentially closes off or encloses the built-in cooking appliance 1 to the outside. An inner housing 12, which can also be referred to as the inner housing, is arranged within the outer housing 10. The inner housing 12 closes off the outer housing 10 towards the front in the longitudinal direction X, i.e. from the perspective of a user, upwards and downwards in the vertical direction Z, so that an intermediate space 13 is formed between the outer housing 10 and the inner housing 12, which intermediate space can also be referred to as the housing space. This intermediate space 13 represents the interior of the built-in cooking appliance 1. The inner housing 12 also essentially encloses an interior space 11, in which a cooking process can be carried out.The interior space 11 is accessible in the longitudinal direction X for a user from the front of the built-in cooking appliance 1 through a through opening 14 as an access opening.

[0067] Furthermore, a pull-out shelf 20 of the pull-out 2 is arranged in the interior 11 and is movable in the longitudinal direction X relative to the inside of the inner housing 12, for example by means of pull-out mechanisms (not shown), for example in the form of rail elements or the like. A panel 21 extending perpendicularly thereto in the vertical direction Z and in the transverse direction is fixedly arranged on the pull-out shelf 20, which extends horizontally X, Y, and completely covers the built-in cooking appliance 1 in the longitudinal direction X towards the front, towards the user. The panel 21 can have operating elements and / or display elements to provide the user with operating options and / or display information. The panel 21 can additionally or alternatively have a viewing window there, allowing the user to view through the viewing window into the interior 11 of the built-in cooking appliance 1.

[0068] In any case, the cover 21 of the drawer 2 can fully or partially expose the through-opening 14 of the inner housing 12 to the user. For this purpose, the drawer 2 can be moved in the longitudinal direction X in an extension direction A toward the user and, in particular, pulled by the user. In the opposite direction, the insertion direction B, the cover 21 of the drawer 2 can be pushed or pressed away by the user, thereby partially or completely closing the through-opening 14 of the inner housing 12. In this state, the interior space 11 of the inner housing 12 corresponds to a pull-out space of the drawer.

[0069] In the vertical direction Z from above, in a corresponding extended position of the drawer 2, at least one cooking utensil 3 can be removably arranged by the user on the drawer base 20 of the drawer 2. For this purpose, appropriate markings and / or recesses or other holders (not shown) can be provided there as positioning instructions and / or as positioning devices. The cooking utensil 3 can also be referred to as a cooking vessel, a food carrier, or a food receptacle. The cooking utensil 3 consists of a cooking utensil housing 30, which can also be referred to as the cooking utensil body, and a cooking utensil closure 32, which can also be referred to as the cooking utensil lid. The cooking utensil 3 has a cooking chamber 31 inside its cooking utensil housing 30, which can be closed by the user by placing the cooking utensil closure 32 and opened or made accessible by lifting the cooking utensil closure 32.

[0070] To heat the cooking utensil 3 or the food to be cooked in the vertical direction Z from above, the built-in cooking appliance 1 has a second heating device 15 in the form of a radiation device, arranged in the vertical direction Z directly below the inner housing 12 and fixed to the inner housing 12. The radiation device is enclosed by a second separating element 17 in the form of a second glass ceramic such that the second glass ceramic forms a gas-tight or vapor-tight seal with the inner housing 12, whereby all components, and in particular all electronic components, of the radiation device can be arranged within the second glass ceramic and thus protected from mechanical influences and moisture.Within the second glass ceramic, a radiant heater with heating band 16 is arranged and aligned horizontally X, Y, to emit heat radiation in the infrared spectral range, essentially downwards in the vertical direction Z, into the interior 11 of the built-in cooking appliance 1. This allows heat radiation to act on the cooking utensil 3 or the food being cooked from above in the vertical direction Z, heating the food comparatively directly, quickly, and / or with minimal loss.

[0071] To heat the cooking utensil 3 or the food to be cooked from below, the built-in cooking appliance 1 according to the invention has a first heating device 22 in the form of an induction device in the vertical direction Z below the pull-out shelf 20 and movable with the pull-out 2. In the area of ​​the induction device, the pull-out shelf 20 is designed as a first separating element 23 in the form of a first glass ceramic, onto which the cooking utensil 3 can be placed from above in the vertical direction Z. The induction device has an induction coil 24 in the horizontal X, Y, which can be operated by an induction generator 25 that is fixedly arranged in the intermediate space 13 and is connected to the induction coil 24 by means of cables with sufficient flexibility so that the induction coil 24 can be moved along with the pull-out 2 in the longitudinal direction X.

[0072] According to the invention, the cooking utensil 3, which can fill the interior 11 of the built-in cooking appliance 1 as completely as possible, at least in the horizontal X, Y directions, or the food in the cooking utensil 3, can be heated both inductively from below and by heat radiation from above. This can accelerate, intensify, and / or make the cooking process more uniform.

[0073] According to the invention, according to the first embodiment of the Fig. 1 Furthermore, a certain degree of thermal insulation in the vertical direction Z between the underside or bottom (not designated) of the cooking utensil housing 30 of the cooking utensil 3 and the top side (not designated) of the first glass ceramic of the pull-out shelf 20 can be achieved by providing a spacer 33 in the form of a base with an anti-slip coating on the underside at each of the four corners (not designated) of the cooking utensil 3. This creates an intermediate space 34 in this area, which, due to the air present there, can already provide greater thermal insulation between the cooking utensil 3 and the first glass ceramic than with direct contact between the surfaces.As a result, the comparatively high heating that can be caused by the radiation from the radiation device in the cooking chamber 31 of the cooking utensil 3 can be at least partially kept away from the first glass ceramic and thus also from the induction device of the pull-out shelf 20. This can already reduce or minimize the heating of the induction device by the radiation device.

[0074] To further improve the previously described thermal insulation, a fan unit 26 is provided on the pull-out shelf 20 at the rear end in the longitudinal direction X, as viewed from the user. This fan unit can generate a directed air flow C into the intermediate space 34. By means of the air flow C, the air in the intermediate space 34, which can heat up relatively strongly over time as stagnant air, can be removed from the intermediate space 34 and replaced with comparatively cool air. This allows the thermally insulating effect of the air in the intermediate space 34 to be maintained or increased.

[0075] Designing the built-in cooking appliance 1 as a drawer and arranging it in a piece of kitchen furniture can enable the properties and advantages described above to be implemented in a particularly compact and space-saving manner. This can be achieved in particular by means of a built-in cooking appliance 1 according to the invention which has a standardized height in the vertical direction Z of 14 cm and a standardized width in the transverse direction of 54 cm. Similar to a previously known warming drawer or the like, the built-in cooking appliance 1 according to the invention can thus be arranged in the vertical direction Z underneath, for example, an oven in order to be able to use the respective cooking options simultaneously and independently of one another. If the oven is designed with a comparatively small height in the vertical direction Z of 43 cm, the built-in cooking appliance 1 according to the invention and the known oven can be installed together in a standardized height Z of 14 cm and a standardized width in the transverse direction of 54 cm.A standardized furniture niche with a total height in the vertical direction Z of 58 cm and a width in the transverse direction of 54 cm, in particular with a depth in the longitudinal direction X of 60 cm, can be used. This can enable the provision or use of expanded cooking options for users in a comparatively small and standardized installation space, or familiar cooking options can be made available in a comparatively small space.

[0076] Fig. Figure 2 shows a side sectional view of a built-in cooking appliance system according to the invention, according to an embodiment with a partially extended drawer 2 of the built-in cooking appliance 1. In this case, the present invention is implemented by forming the gap 34 in the vertical direction Z between the top side (not labeled) of the induction coil 24 of the induction device and the bottom side (not labeled) of the first glass ceramic. This allows the invention to be implemented solely through the structural design of the drawer base 20, so that a modification of the cooking utensil 3 is not necessary.

[0077] However, as in the Fig. 2, the cooking utensil 3 as in the first embodiment of the Fig. 1. This allows, in addition to the intermediate space 34 within the pull-out shelf 20, through which the air stream C can flow, a further intermediate space (not designated) can be created above the first glass ceramic opposite the cooking utensil 3. Both intermediate spaces together can provide correspondingly effective thermal insulation by means of air.

[0078] Fig. Figure 3 shows a side sectional view of a built-in cooking appliance system according to the invention according to a third embodiment with partially extended drawer 2 of the built-in cooking appliance 1. In this case, the cooking utensil 3 is designed without spacers 33 and lies flat in the horizontal X, Y on the upper side of the first glass ceramic. Thermal insulation as described above is achieved in this case exclusively by the intermediate space 34 within the drawer base 20, as in the second embodiment of the Fig.2. This allows the present invention to be implemented without having to modify the cooking utensil 3. List of reference symbols (part of the description) A Extension direction B Insertion direction C Airflow h Height of the height grid dimension X Longitudinal direction Y transverse direction Z vertical direction X, Y Horizontal; horizontal plane 1 built-in cooking appliance 10 outer casings 11 Interior 12 inner casing; inner casing 13 space 14 passage opening 15 second heating device 16 radiant heaters with heating tape 17 second separating element 2 Extract 20 pull-out shelves 21 aperture 22 first heating device 23 first separating element 24 Induction coil 25 Induction generator 26 Blower unit 3 cooking utensils 30 cooking utensil housings 31 Cooking chamber 32 Cooking utensil closure 33 spacers 34 space

Claims

[1] Built-in cooking appliance (1), with an inner housing (12) with at least one first separating element (23) for receiving at least one cooking chamber (31) and with at least one first heating device (22) which is arranged in the vertical direction (Z) below the first separating element (23) and is designed to heat at least the cooking chamber (31) from below, and with at least one cooking chamber (31) which is received by the first separating element (23), wherein the first separating element (23) and the first heating device (22) have a gap (34) between them in the vertical direction (Z) and with at least one blower unit (26) which is designed to generate an air flow through the intermediate space (34), characterized by , that the built-in cooking appliance (1) has a first heating device (22) in the form of an induction device for heating the cooking utensils (3) or the food to be cooked from below in the vertical direction (Z) below the pull-out base (20) and movable with the pull-out (2), wherein in the region of the induction device (22) the pull-out base (20) is designed as a first separating element (23) in the form of a first glass ceramic, wherein the cooking utensil (3) can be placed on the first glass ceramic from above in the vertical direction (Z), wherein the gap (34) is formed in the vertical direction (Z) between the top of the induction coil (24) of the induction device (22) and the bottom of the first glass ceramic, wherein the cooking utensil (3) has no spacers and the cooling air flow flows below the glass ceramic, whereby the induction components can be cooled directly, wherein the built-in cooking appliance (1) has a pull-out (2) which is designed to be moved in the longitudinal direction (X) in a pull-out direction (A) relative to the inner housing (12) of the built-in cooking appliance (1) towards a user and in the longitudinal direction (X) in an opposite insertion direction (B) relative to the inner housing (12) of the built-in cooking appliance (1) away from a user, wherein the inner housing (12) encloses an interior space (11) in which a cooking process can be carried out, wherein a pull-out floor (20) of the pull-out (2) is arranged in the interior (11), wherein the cooking chamber (31) and the first separating element (23) are movable together with the pull-out (2), wherein the pull-out floor (20) of the pull-out (2) has the first heating device (22) and / or the blower unit (26). [2] Built-in cooking appliance (1) according to claim 1, characterized bythat the cooking chamber (31) has at least one spacer (33) which spaces the cooking chamber (31) in the vertical direction (Z) from the first separating element (23). [3] Built-in cooking appliance (1) according to one of the preceding claims, characterized by that the first heating device (22) is an induction device, preferably with at least one induction coil (24). [4] Built-in cooking appliance (1) according to one of the preceding claims, characterized by that the first separating element (23), preferably as a first glass ceramic, is designed to separate the induction device from the interior (11) and to allow the radiation of the induction device to pass through. [5] Built-in cooking appliance (1) according to one of the preceding claims, characterized by at least one second heating device (15) which is arranged in the vertical direction (Z) above the cooking chamber (31) and is designed to heat at least the cooking chamber (31) from above. [6] Built-in cooking appliance (1) according to the preceding claim, characterized by that the second heating device (15) is a radiation device, preferably with at least one radiant heater with heating band (16). [7] Built-in cooking appliance (1) according to the preceding claim, characterized by that the radiation device has at least one second separating element (17), preferably as a second glass ceramic, which is designed to separate the radiation device from the interior (11) and to allow the radiation of the radiation device to pass through. [8] Built-in cooking appliance (1) according to one of the preceding claims, characterized by , that the inner casing (12) the first heating device (22) and / or the blower unit (26) has. [9] Built-in cooking appliance (1) according to one of claims 8 to 10, characterized bythat the pull-out (2), preferably a panel (21) of the pull-out (2), forms a closed interior space (11) of the built-in cooking appliance (1) with the inner housing (12) of the built-in cooking appliance (1) when the pull-out (2) is fully inserted in the insertion direction (B). [10] Built-in cooking appliance (1) according to one of the preceding claims, characterized by that the cooking chamber (31) is formed by a cooking utensil (3) which is designed to be removable from the built-in cooking appliance (1). [11] Built-in cooking appliance (1) according to one of the preceding claims, characterized by that the first separating element (23) is designed to receive the cooking chamber (31) by means of at least one positioning indication and / or by means of at least one positioning device. [12] Built-in cooking appliance (1) according to one of the preceding claims, characterized bythat the first separating element (23) and / or the cooking chamber (31) is / are designed to face each other in order to increase the durability of the accommodation of the cooking chamber (31) on the first separating element (23). [13] Built-in cooking appliance (1) according to the preceding claim, characterized by that the built-in cooking appliance (1) has a width grid dimension with a width in the transverse direction. [14] Built-in cooking appliance (1) according to one of the two preceding claims, characterized by that the built-in cooking appliance (1) has a height grid dimension in the vertical direction (Z) with a height (h) of a built-in drawer which corresponds to a fraction of a width (b) of a width grid dimension.

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