COOKTOP SYSTEM WITH DOWNWINDOW VENTS FOR EXTRACTING COOKING VAPOR

Description

[0001] The invention relates to a cooktop system. Furthermore, the invention relates to a cooktop system with a cooktop cover.

[0002] WO 2012 / 146 237 A1 discloses a cooktop system comprising an extractor device for extracting cooking fumes downwards with two fans. To provide the necessary extraction power, the fans are relatively large, and their installation in the extractor device is correspondingly space-intensive. The space below the cooktop system is only available for storage to a limited extent.

[0003] Hob systems are also known from US 3,409,005 A, WO 2008 / 083660 A2, EP 2 607 795 A1, DE 10 2011 079 306 A1, CN 201 351 954 Y, DE 20 2016 104 283 U1, JP 2007 333 358 A, DE 20 2008 013 350 U1 and DE 20 2013 005 303 U1.

[0004] An inclined fan axis of a hob system is known from CN 107 940 533 A.

[0005] It is an object of the invention to improve a hob system.

[0006] This object is achieved by a cooktop system having the features of claim 1. According to the invention, it was recognized that a cooktop system with a cooktop and an extractor hood, which has a front installation height between a front edge and a geometric center of gravity of at most 100 mm, enables particularly intensive use of the installation space available in kitchens, in particular as storage space. The cooktop system is preferably designed for integration into a worktop. The worktop preferably rests on a piece of kitchen furniture, in particular a kitchen base cabinet. The front edge of the cooktop system is understood to be an edge facing the user of the cooktop system. Control elements for controlling the cooktop system are preferably arranged on the front edge.In particular, the control elements, particularly information presented on display elements, can be oriented toward the front edge. The front area of ​​the cooktop system is particularly easily accessible to the user. Because the front installation height of the cooktop system is a maximum of 100 mm, the available space, which is easily accessible to the user, can largely be retained as storage space. For example, shelves and / or drawers can be provided in a front area of ​​the kitchen unit in which the cooktop system is located, making the available storage space particularly easy to use.

[0007] The cooktop system has an overall height, an overall width, and an overall depth. The overall height corresponds to the vertical extent of the cooktop system. The overall depth corresponds to the extent of the cooktop system perpendicular to the overall height and perpendicular to the front edge. The overall width is the extent of the cooktop system perpendicular to the overall height and overall depth. In a plan view, the cooktop system can have flat areas that are designed with a particularly low overall height. These flat areas can represent at least 30%, in particular at least 50%, in particular at least 75%, in particular at least 90%, of the area occupied by the cooktop system in a plan view.The overall height of the cooktop system in these flat areas is preferably a maximum of 250 mm, in particular a maximum of 200 mm, in particular a maximum of 150 mm, in particular a maximum of 120 mm, in particular a maximum of 100 mm, in particular a maximum of 75 mm, in particular a maximum of 50 mm. The flat area preferably extends in plan view, starting from the front edge, over at least 20%, in particular at least 30%, in particular at least 50%, in particular at least 75% of the overall overall depth. Even more preferably, the flat area extends in plan view, starting from one or both side edges of the cooktop system, over at least 20%, in particular at least 30%, in particular at least 50%, in particular at least 75% of the overall overall width. The space underneath the cooktop system, which is easily accessible to the user, can thus be used as storage space.

[0008] According to the invention, the extractor extraction device has at least two, in particular at least three, fans for sucking in cooking fumes. The extractor extraction device can have exactly two or exactly three fans. Preferably, the extractor extraction device has at least four, in particular at least five, in particular at least six, in particular at least eight, in particular at least ten, fans. The at least one fan, in particular the at least three fans, can be designed as an axial fan and / or radial fan and / or cross-flow fan. A large number of fans allows the use of smaller and / or quieter fans while maintaining the extraction performance. Cross-flow fans have a smaller diameter than axial fans while achieving the same extraction performance and therefore enable particularly compact dimensioning of the extractor extraction device.

[0009] According to one aspect of the invention, the at least one fan, in particular the at least three fans, each have a fan wheel with a diameter of at most 150 mm, in particular at most 120 mm, in particular at most 100 mm, in particular at most 80 mm, in particular at most 50 mm. The extractor extraction device can thus be designed to be particularly compact. The installation space required by the extractor extraction device is minimal.

[0010] In principle, fans with larger impellers, especially with a diameter of 160 mm, 200 mm, or up to 250 mm, can also be used. It is particularly possible to use four fans with impellers each with a diameter of 160 mm. The impellers can each have a height of 80 mm or less, especially 50 mm or less.

[0011] The height of the extractor hood is preferably no more than 220 mm, in particular no more than 200 mm, in particular no more than 150 mm, in particular no more than 120 mm, in particular no more than 100 mm. This advantageously allows the extractor hood to be designed particularly compactly. A space beneath the extractor hood can be largely retained as storage space, for example, for cookware.

[0012] According to a further aspect of the invention, the at least two fans, in particular the at least three fans, are connected to one another in an air-conducting manner via a negative pressure duct section of the extractor extraction device. The negative pressure duct section of the extractor extraction device extends between the at least one inlet opening and the at least two, in particular the at least three, fans. Preferably, all of the fans are connected to one another in an air-conducting manner via the negative pressure duct section. The at least two, in particular the at least three, fans can be connected to the at least one inlet opening via a single negative pressure duct section. Alternatively, the extractor extraction device can have a plurality of inlet openings, wherein each of the inlet openings is in air-conducting connection with one of the fans via a separate negative pressure duct section.Preferably, all of the at least two, in particular at least three, fans can be controlled independently of one another, in particular by means of a corresponding control device. Cooking fumes can thus preferably be extracted independently of one another via the individual inlet openings. To vary the extraction performance, either all or some of the fans can be activated. The individual fans can thus always be operated at an optimal speed, determined in particular by the geometry of the fan impellers, at which they operate efficiently and quietly, whereby the extraction performance remains controllable by activating a fewer number of fans than the total number of fans.

[0013] The extractor device can have a filter for filtering cooking fumes. Because the at least two, in particular the at least three, fans are connected to one another via the negative pressure duct section, the number of filters can be fewer than the number of fans. The extractor device is thus particularly easy to maintain and can be designed compactly. The extractor device is preferably designed such that each of the fans extracts the cooking fumes through each of the filters, in particular through a single filter.

[0014] According to a further aspect of the invention, the filter is arranged vertically adjacent to the at least one inlet opening and / or to a cooking support, in particular a surface of the cooking support, and / or flush therewith. The filter can be completely overlapped by the cooking support in a plan view or arranged behind the cooking support. By arranging the filter in this way, the extractor device can be designed to be particularly space-saving and have a particularly low overall height.

[0015] The filter can be glued to the cookware support and / or connected to the cookware support via a filter holder, in particular in a form-fitting manner, in particular via a rail. The filter can preferably be removed reversibly, in particular without tools, from the extractor device, in particular from the cookware support. The filter can be designed as a grease filter. Preferably, the area of ​​the filter covered by the cookware support in a plan view is at least 50% of the area of ​​the cookware support in a plan view. This ensures energy-efficient filtration of cooking vapors.

[0016] The extractor hood may have at least one cover for covering the at least one inlet opening. The cover may be arranged parallel, in particular flush, to a surface of the cooking support. The cover may have a plurality of cover openings, in particular at least ten, in particular at least fifty, in particular at least one hundred, for extracting cooking fumes. The cover may be designed as a grid or as a metal mesh. The cover may comprise glass, in particular a glass ceramic, or a metal, in particular stainless steel. Preferably, the cover is adapted to the cooking support, in particular in terms of color and / or structure, in such a way that they are visually barely distinguishable or not at all distinguishable from one another.

[0017] The filter may comprise at least one cover and at least one filter element. The cover may be reversibly connected to the filter element. The filter may have a collecting tray for collecting overflow liquid. For example, the filter is triangular in cross-section.

[0018] According to one aspect of the invention, the extractor extraction device has at least one fan motor, which is each rotationally connected to at least two, in particular to at least three, of the fans. Preferably, all of the fans are rotationally driven by a single fan motor. For this purpose, the fan motor can be rotationally connected to the respective fan wheel of the at least two, in particular at least three, fans via one or more rotation transmission means, in particular one or more gears and / or a belt drive. The fan motor can be rotationally connected to the fan wheels of the fans or decoupled from them, in particular via a switchable coupling device. In general, the number of fan motors can be fewer than the number of fans, in particular fewer than the number of fan wheels. This aspect is also advantageous independently of the other details of the present invention.

[0019] According to a further aspect of the invention, the extractor device comprises at least one odor filter, in particular an activated carbon filter, arranged in the vacuum duct section. The filter is preferably designed as a combination filter, comprising both a grease filter and an odor filter. The odor filter arranged in the vacuum duct section is particularly easy to remove, particularly via the at least one inlet opening, and is reversibly removable. The extractor device is thus particularly easy to maintain.

[0020] According to the invention, at least two of the fans have axes of rotation oriented obliquely to one another. This means that at least two of the fans have axes of rotation that are not parallel to one another. The axes of rotation of the at least two, in particular of the at least three fans, can be oriented vertically and horizontally. The axis of rotation of one fan, in particular of the at least two, in particular of the at least three fans, can be arranged inclined to the vertical direction, wherein an angle to the vertical direction is greater than 5° and less than 85°. The axis of rotation of the at least two fans can be oriented radially to the upstream negative pressure duct section and / or to a vertical axis, in particular running through the geometric center of gravity of the inlet opening. The at least two fans can thus be arranged on the negative pressure duct section in a particularly space-saving manner.An angle between the axes of rotation of the at least two fans is preferably at least 30°, in particular at least 45°, in particular 90°.

[0021] According to a further aspect of the invention, the extractor device comprises a plurality of fans with a rotation axis oriented at an inclination relative to a horizontal plane and a vertical direction. The information regarding the inclination of the rotation axis relates in particular to all fans of the extractor device.

[0022] The angle of inclination between the horizontal plane and the axis of rotation of the at least one fan is in particular in a range of 10° to 85°, in particular in a range of 30° to 80°.

[0023] It has been shown that an oblique orientation of the rotation axis makes it possible to design the extractor unit with a particularly low overall height, especially in the front area of ​​the cooktop system. An oblique orientation of the rotation axis can, in particular, reduce flow deflection between the inlet opening and the at least one fan, allowing the extraction of cooking fumes to be carried out in a particularly energy-efficient manner.

[0024] According to a further aspect of the invention, the extractor extraction device comprises at least one guide element adjacent to the at least one inlet opening and displaceable along a vertical direction for shading an upper space located upstream of the at least one inlet opening on one side. The upper space is understood to be a space above the extractor extraction device from which the cooking fumes are extracted downwards by means of the extractor extraction device. The guide element is preferably plate-shaped. The at least one guide element surrounds the at least one inlet opening on one side, i.e. not completely. In a plan view, the at least one guide element surrounds the at least one inlet opening, in particular starting from a geometric center of gravity of the inlet opening, preferably over an angle of at least 30°, in particular at least 45°, in particular at least 90°, in particular at least 120°, in particular at least 180°.The extraction of cooking fumes can thus be directed and particularly energy-efficient.

[0025] The effectiveness of the guide element depends essentially on its height. Preferably, the at least one guide element extends vertically upwards from the at least one inlet opening over at least 50 mm, in particular at least 100 mm, in particular at least 150 mm, in particular at least 200 mm.

[0026] The at least one guide element can be flat, single-curved, or doubly curved, i.e., non-developable. The at least one guide element is preferably circular in cross-section.

[0027] The at least one guide element can have lighting. The at least one guide element can also have a user interface for controlling the at least one fan, in particular the at least three fans, and / or the at least one cooking hob.

[0028] Preferably, the at least one guide element is displaceable relative to the at least one inlet opening. For this purpose, the extractor device can have a guide device, in particular a slotted guide. Preferably, the at least one guide element can be arranged between a guide position, in which the upper space is shaded on one side, and a return position, in which the extraction of cooking vapors by the at least one guide element occurs unimpeded.

[0029] According to a further aspect of the invention, an upper side of the at least one guide element can be arranged below or flush with the adjacent inlet opening in the reset position. An area above the inlet opening can thus be used for placing cooking items without being affected by the at least one guide element.

[0030] Preferably, the guide element comprises a closing element for closing, in particular airtight, the at least one inlet opening in the reset position.

[0031] In the guiding position, the at least one guiding element preferably at least partially covers the at least one inlet opening in a plan view. This allows the extraction of cooking fumes to be more directed and thus particularly efficient.

[0032] According to a further aspect of the invention, the at least one inlet opening has an area of ​​at most 100 mm 2 , in particular at most 10 mm 2 , in particular at most 1 mm 2 , in particular at most 0.1 mm 2 . The number of inlet openings is preferably at least ten, in particular at least twenty-five, in particular at least fifty, in particular at least one hundred, in particular at least one thousand. The extraction of cooking fumes can thus take place at a variety of different positions and in the immediate vicinity of the place where the cooking fumes arise. The extraction of cooking fumes is thus particularly efficient.

[0033] According to a further aspect of the invention, the plurality of inlet openings each belong to one of at least two extraction sections, wherein the extraction of the cooking fumes can take place independently via each of the extraction sections. The inlet openings of each of the at least two extraction sections can each be connected to vacuum duct sections that are hermetically separated from one another. Preferably, each of the at least two extraction sections is in air-conducting communication with at least one fan for sucking in the cooking fumes, in particular via a separate vacuum duct section. Preferably, each of the at least two extraction sections comprises at least one, in particular at least two, in particular at least five, in particular at least ten, in particular at least fifty, inlet openings.

[0034] The hob preferably comprises at least one cooking support and at least one heating unit arranged beneath the cooking support. The at least one heating unit can be designed as a radiant heating unit and / or as an induction heating unit. The at least one heating unit, in particular the induction coils, can each have a diameter or a length and width of up to 23 cm, in particular up to 24 cm, in particular more than 24 cm. The hob system can in particular have four cooking zones, each with a diameter or a length and width of 24 cm.

[0035] The at least one inlet opening is preferably arranged in a plan view in the rear third, in particular in the rear quarter, of the hob system. The at least one inlet opening preferably extends over at least 50%, in particular at least 70%, in particular at least 85%, of the width of the hob system.

[0036] According to one aspect of the invention, the cooking support completely overlaps all of the fans in a plan view. The horizontal dimensions of the cooktop system are thus particularly small.

[0037] According to a further aspect of the invention, the fans are arranged in a plan view in an area behind the rear edge of the food support. This makes it possible to design the cooktop system with a particularly low overall height in the front area, in particular in the area of ​​the cooktops, which are also referred to as cooking areas. The cooktop system can have an overall height of no more than 10 cm, in particular no more than 5 cm, in particular no more than 4 cm in the front area, in particular over at least 50%, in particular at least 70%, in particular at least 80%, in particular at least 90% of its extension in the direction perpendicular to the front edge. This information regarding the overall height of the cooktop system applies in particular to the entire area in which the cooktops are arranged. The cooktop system therefore has such a low overall height in this area that the entire space in the base cabinet below can be used.In particular, there's no need to do without the top drawer. If necessary, it can be designed with a slightly reduced insertion depth.

[0038] According to one aspect of the invention, the filter is arranged in a plan view between at least two of the cooking surfaces or behind the at least one cooking surface.

[0039] According to one aspect of the invention, the at least one inlet opening is designed to be gas-permeable and liquid-repellent, in particular liquid-tight. For this purpose, a gas-permeable and liquid-repellent, in particular liquid-tight, layer can be arranged on the at least one inlet opening, in particular on the cooking support. The gas-permeable and liquid-repellent layer can be arranged above or below the cooking support. The gas-permeable and liquid-repellent layer can be attached to the cooking support and / or to the at least one filter, in particular in a material-to-material or replaceable manner. Preferably, the gas-permeable and liquid-repellent layer is designed to be cleanable, in particular dishwasher-safe. This ensures that cooking vapors are reliably sucked downwards, but liquids cannot penetrate into an area below the cooking support and / or the at least one inlet opening.

[0040] The at least one inlet opening can each define an upstream inlet channel penetrating the food carrier. The at least one inlet channel can be designed as a bore, in particular as a micro-bore and / or as a perforation. Preferably, at least one of the inlet openings is arranged in a central region of the food carrier in a plan view, in particular in the region of the geometric center of gravity of the food carrier. At least one of the inlet openings can be arranged in an edge region of the food carrier in a plan view.

[0041] According to one aspect of the invention, the area proportion of a perforated surface of the cooking product carrier compared to the total surface of the cooking product carrier in a plan view is at least 30%, in particular at least 50%, in particular at least 75%, in particular 100%.

[0042] According to one aspect of the invention, the at least one cooking food carrier can be reversibly removed from a cooking food carrier receptacle of the hob system, in particular without tools.

[0043] The cooking support can, in particular, be designed as a separate component that can be separated from the other components of the cooktop system. It can also be separated, in particular removable, from the other components of the cooktop system together with the induction generators.

[0044] The food carrier can be dishwasher-safe and / or designed for cleaning using a pyrolysis process. In particular, the food carrier can be designed to be scratch-resistant and / or corrosion-resistant and / or heat-resistant, in particular for temperatures of at least 200°C, in particular at least 300°C, in particular at least 400°C, in particular at least 500°C.

[0045] The at least one cooking support can also be designed as a capacitively and / or electrically heatable hotplate, in particular a tool-free, removable and / or portable one. For electrical heating, the hotplate can have layers of micanite. The hotplate can preferably be heated to a maximum temperature of 120°C, in particular a maximum of 100°C, in particular a maximum of 80°C. The cooking support preferably has a specific heat capacity of at least 500 J / kgK, in particular at least 700 J / kgK, in particular at least 850 J / kgK.

[0046] According to a further aspect of the invention, the cooktop system is designed as a compact appliance. The compact appliance is understood to be an assembly unit comprising the cooktop and the extractor hood, wherein the extractor hood includes the vacuum duct section and the at least one fan. The cooktop system designed as a compact appliance can be installed particularly quickly and inexpensively, especially on a worktop.

[0047] According to a further aspect of the invention, in particular the at least three fans are arranged horizontally in a plan view completely behind the geometric center of gravity of the cooktop system, in particular of the cooking food support. The overall height of the cooktop system can therefore be particularly low. When the cooktop system is attached to a kitchen base cabinet, the storage space available below the worktop remains largely unaffected by the cooktop system, in particular in a front area. Preferably, the at least one fan, in particular the at least three fans, are arranged completely in an area behind the cooking food support in a plan view. In this case, an axis of rotation of the at least one fan, in particular of the at least three fans, can be oriented horizontally, in particular in the depth direction of the cooktop.

[0048] According to the invention, a front height of the hob system in a horizontal area between the front edge and a geometric center of gravity of the hob system is at most 180 mm, in particular at most 150 mm, in particular at most 120 mm, in particular at most 100 mm, in particular at most 80 mm, in particular at most 50 mm. It has been shown that a hob system with an installation height of 40 mm in the front area is possible.

[0049] The hob system has such a low overall height in particular in an area which extends over at least 30 cm, in particular at least 40 cm, in particular at least 50 cm, starting from the front edge in a direction perpendicular to the latter.

[0050] The hob system can have such a low installation height, especially across the entire cooking area.

[0051] The total height of the hob system shall not exceed 250 mm, in particular 200 mm, in particular 150 mm.

[0052] The invention is further based on the object of improving a hob system with a hob cover.

[0053] This object is achieved by a hob system with a hob cover which can be arranged in an open position in which the at least one inlet opening and the at least one cooking zone are uncovered, and in a closed position in which the at least one inlet opening and the at least one cooking zone are at least partially concealed in a plan view. According to the invention, it was recognized that the hob system with the hob cover which can be displaced relative to the hob and which at least partially covers the at least one inlet opening and the at least one cooking zone in a plan view in the closed position and uncovers them in the open position, can be used particularly flexibly and intensively. The cooking zone is an area above the food support in which the at least one heating unit heats the food.

[0054] When the cooktop cover is in the open position, the entire cooktop can be used in the usual way to heat up food. When the cooktop cover is in the closed position, a first area above the cooktop can be used, for example, to heat food, while a second area above the cooktop can also be used to prepare the food. By at least partially covering at least one inlet opening, the extraction intensity is increased in the uncovered area of ​​the inlet opening, particularly while the fan power remains unchanged. This allows increased extraction performance to be provided in the area of ​​the cooktop used for cooking. In addition, the cooktop cover in the open position can reliably protect a wall behind it from grease splashes.This enables intensive use of the space available in a kitchen and energy-efficient extraction of cooking fumes.

[0055] According to a further aspect of the invention, the hob cover, in the closed position, covers only the at least one inlet opening, but not the cooking zones. In the closed position, the hob cover can, in particular, be flush with a rear edge of the cooking zones, in particular the cooking support.

[0056] An upper side of the hob cover can be designed as a mechanically insensitive, in particular scratch-resistant storage surface and / or cut-resistant cutting surface. When the hob cover is arranged in the closed position, the upper side of the hob cover can then be used, for example, to prepare food to be heated. The hob cover is preferably designed to be high-temperature resistant, in particular for temperatures of at least 150 °C, in particular at least 200 °C, in particular at least 250 °C. The hob cover can have a particularly low thermal conductivity of at most 3.0 W / mK, in particular at most 2.0 W / mK, in particular at most 1.0 W / mK. Heated food can therefore be placed on the hob cover without the risk of damaging it and without the risk of burning skin on the heated hob cover.

[0057] The hob cover can be made of metal, in particular cast iron, glass or glass ceramic, or of plastic.

[0058] The hob cover is preferably pivotably mounted on the hob system, in particular on the hob. The hob cover can be connected to a drive device for moving the hob cover between the closed position and the open position. The drive device can comprise a motor and / or a spring element. The hob cover can thus be moved particularly easily, in particular automatically, between the closed position and the open position. The hob cover can have a handle for manual movement between the open position and the closed position.

[0059] Preferably, the hob cover completely covers the at least one air inlet and / or the at least one cooking zone in the closed position. In the closed position, the hob cover can completely overlap the entire hob, in particular the entire cooking support, in a plan view. In the closed position, the hob cover can rest on the hob, in particular on the cooking support. In the closed position, a surface of the hob cover can be arranged flush with a worktop or protrude upwards above it.

[0060] According to one aspect of the invention, the cooktop cover hermetically seals the at least one inlet opening in the closed position. For this purpose, the cooktop cover can have a sealing seal. Preferably, the sealing seal completely surrounds the at least one inlet opening in the closed position. The escape of odors from the extractor device through the at least one inlet opening can thus be reliably prevented, especially when the fans are deactivated.

[0061] According to a further aspect of the invention, the cooktop cover comprises at least two independently movable cover bodies. Preferably, the at least one inlet opening and the cooking support can each be partially concealed by the at least two cover bodies. Unused areas of the cooking support can thus be concealed together with a, particularly adjacent, partial area of ​​the at least one inlet opening, wherein, in particular, another partial area of ​​the cooking support can be used to heat cooking items. Cooking vapors can be extracted particularly intensively via the thus reduced area of ​​the inlet opening.

[0062] The cooktop cover can have at least one closure cover attached to the at least one cover body. The closure cover can be designed such that, when the at least one cover body is in the closed position, it penetrates into a vacuum duct section of the extractor device. The closure seal is preferably arranged on the at least one closure cover. The at least one inlet opening can thus be closed particularly reliably, in particular airtight.

[0063] According to a further aspect of the invention, the cooktop cover can serve as a flow guide element for an air flow. It can, in particular, serve as a flow guide element for an air flow flowing out above the cooking support. The air flow can, in particular, be an air flow for generating purge air. The extraction of cooking vapors can be improved by means of the air flow, in particular the purge air.

[0064] It is also possible to integrate airflow ducts, particularly purge air ducts, into the cooktop cover. The airflow, particularly the purge air, can exit through defined air outlets, particularly near a free edge of the cooktop cover.

[0065] The airflow directed by and / or exiting through the cooktop cover can, in particular, have a downward component. This can improve the extraction of cooking fumes by the extractor.

[0066] According to a further aspect of the invention, the hob system can be designed for flush mounting, for surface mounting or for mounting with the aid of a mounting frame.

[0067] Further features, advantages, and details of the invention will become apparent from the following description of the cooking support, the hob, and the hob system, based on the figures. They show: Fig. 1 a perspective view of a hob system with a hob and an extractor hood, Fig. 2 a sectional view of the hob system along the section line II-II in the Fig. 1 , Fig. 3 a plan view of a hob system according to a further embodiment, according to which the hob system comprises six induction heating units, an extractor device with several cross-flow fans and a cooking item support with a plurality of inflow channels, which are distributed inhomogeneously over a surface of the cooking item support, Fig. 4 a perspective view of a hob system according to a further embodiment, comprising an extractor device with a single inflow opening formed by a cooking item support and a hob cover for reversibly and completely covering the cooking item support and the inflow opening, Fig. 5 a sectional view of the hob system along the section line VV in the Fig. 4 with four fans arranged at equal angles and equidistant around a vertical axis passing through a center of gravity of the inlet opening, Fig. 6 a sectional view of the hob system along the section line VI-VI in the Fig. 4 with a hollow cylindrical filter, Fig. 7 a perspective rear view of a hob system according to an example not according to the invention, wherein the hob system comprises a hob with four heating units arranged next to one another, a hob cover with two independently displaceable cover bodies and an extractor device with an inlet opening arranged at the rear of the hob, Fig. 8 a sectional view of the hob system along the section line VIII-VIII in the Fig. 7 , wherein an odor filter of the extraction device is arranged in a negative pressure duct section arranged upstream of the fan, Fig. 9 a perspective view of a cooking hob system according to a further embodiment with two displaceable cooking vapor guide elements for shading an upper space located upstream of an inlet opening on one side, Fig. 10 a sectional view of the cooking hob system along the section line XX in the Fig. 9 with two fans arranged downstream of the two inlet openings.

[0068] In the following, different details of a hob system 1 with a hob 2 and an extractor device 3 are described using the Fig. 1 and Fig. 2 described. The hob 2 comprises a food support 4 with four heating units 5 arranged thereon for heating food 6. The hob system 1 is arranged on a kitchen base cabinet 7. For this purpose, the hob system 1 is attached to a worktop 8 of the kitchen base cabinet 7. One surface of the food support 4 is arranged flush with a surface of the worktop 8.

[0069] To control the extractor device 3 and the heating units 5, the cooktop system 1 includes a user interface 9. The user interface 9 is designed as a touch-sensitive screen. The user interface 9 is in signal communication with the extractor device 3 and the heating units 5 via a control unit (not shown).

[0070] The cooking support 4 comprises a glass plate, in particular a glass ceramic plate. The glass plate is penetrated by a plurality of inflow channels 10 for extracting cooking vapors. The cross-sectional area of ​​each of the inflow channels 10 is less than 1 mm².

[0071] An area that can be heated by the respective heating unit 5 at the level of or above the food support 4 forms a cooking point 11. In the area of ​​the cooking points 11, the respective heating unit 5 can act on the food 6 and heat it. In the area of ​​the cooking points 11, the food support 4 has no inflow channels 10. With the exception of the area of ​​the cooking points 11, the inflow channels 10 are arranged equidistant from one another on the food support 4 in a plan view. The inflow channels 10 each extend straight and vertically through the food support 4. The inflow channels 10 have a circular cross-section.

[0072] As in the Fig. 2 As shown, the hob system 1 has a housing 12. A cooking product support holder 13 is arranged on the housing 12. The cooking product support 4 rests on the cooking product support holder 13 from above and can be removed from it upwards and reversibly without tools. The cooking product support holder 13 has a tilting edge (not shown). The tilting edge delimits a support surface of the cooking product support holder 13 from a recess. The recess is designed such that by loading the cooking product support 4 in a downward direction in an area above the recess, a region of the cooking product support 4 opposite the tilting edge can be lifted.

[0073] The food carrier 4 is dishwasher-safe. In particular, the food carrier 4 is resistant to high temperatures, especially temperatures of at least 350°C, and is suitable for pyrolysis cleaning.

[0074] The number of inflow channels 10 penetrating the cooking support 4 is greater than 50. A filter 14 is arranged below the cooking support 4, particularly in the areas penetrated by the inflow channels 10. In a plan view, the filter 14 completely overlaps the inflow channels 10. The filter 14 is designed as a combination filter for filtering grease and odors from cooking vapors. The cooking support 4 has a filter holder 15. The filter 14 is reversibly attached to the cooking support 4 by means of the filter holder 15.

[0075] The food carrier 4 is designed to be permeable to gases and impermeable to liquids. For this purpose, the food carrier 4 has a hydrophobic surface coating 16 in the area of ​​the inflow channels 10.

[0076] The filter 14 is arranged in a vacuum duct section 17 of the extractor device 3. The vacuum duct section 17 extends between inlet openings 18, which are formed by the inlet channels 10 on the top side of the cooking support 4, and fans 19 of the extractor device 3. The extractor device 3 comprises four fans 19. The fans 19 are designed as cross-flow fans. A rotation axis 20 of the respective fan 19 is oriented horizontally, in particular parallel to a front edge 20a of the cooktop system 1. The fans 19 are in fluid communication with the inlet openings 18 via the vacuum duct section 17 and in fluid communication with a cooking vapor outlet 21 via a positive pressure duct section 21.

[0077] The extractor device 3 is designed to extract cooking fumes via four independently operable extractor sections 22a, 22b, 22c, 22d. For this purpose, each extractor section 22a, 22b, 22c, 22d is connected to one of the fans 19 via a separate vacuum duct section 17. The surface of the cooking support 4 is divided into four extractor sections 22 of equal area.

[0078] To create an airtight connection between the vacuum duct section 17 located downstream of the respective extraction section 22 and the cooking food carrier 4, sealing elements (not shown) are arranged on the vacuum duct section 17. The sealing elements completely surround the respective extraction sections 22.

[0079] The cooking food support 4 has a depth T of 500 mm. In the front area, in particular over at least 70% of the depth T, starting from a front edge 20a of the cooking surface system 1, the cooking surface system 1 has a front overall height HV of 120 mm or less. The overall height HV of the cooking surface system 1 can in this area be in the range of just 3 cm to 5 cm. A storage space 23 of the kitchen base cabinet 7 remains largely unaffected and unobstructed by the cooking surface system 1. A top drawer 24 of the kitchen base cabinet 7 is neither shortened in the vertical direction nor in the depth direction. If necessary, it is possible to make the top drawer 24 of the kitchen base cabinet 7 somewhat shorter in the depth direction in order to have sufficient space in the rear area for the arrangement of the fans 19.

[0080] The fans 19 each have a fan wheel 25. The diameter D of the fan wheels 25 is 80 mm.

[0081] The hob system 1 is designed as a compact unit and can therefore be easily and quickly installed as a pre-assembled system into the worktop 8. The hob system 1, designed as a compact unit, comprises the housing 12, the hob 2, and the extractor hood 3. The vacuum duct section 17 and the fans 19 of the extractor hood 3 are completely part of the compact unit, but the overpressure duct section 26 arranged downstream of the fans 19 are only partially part of it.

[0082] The hob system 1, the extractor hood 3, the hob 2, and the cooking support 4 function as follows: The hob system 1 is commissioned via the user interface 9. User inputs for controlling the heating units 5 and the fans 19 are transmitted to the control unit via the user interface 9. The control unit provides electrical energy to operate the heating units 5 and the fans 19. Status and performance data of the heating units 5 and the fans 19 are transmitted to the user interface 9 via the control unit and visually displayed via the user interface 9.

[0083] The heating units 5 and the fans 19 can be independently powered by the control unit. Activating the heating unit 5 located in the area of ​​the extraction section 22a heats only the cooking items 6 located there. Activating the fan 19 connected to the extraction section 22a extracts cooking vapors through the inlet ducts 10 associated with the extraction section 22a.

[0084] Based on the Fig. 3 A further exemplary embodiment of the cooktop system 1 according to the invention is described below. In contrast to the previous exemplary embodiment, the inflow channels 10 are arranged distributed inhomogeneously over a surface of the cooking support 4. In addition, inflow channels 10 are also arranged in the area of ​​the cooking zones 11. The vacuum channel section 17 extends in particular between the heating unit 5 and the cooking support 4. For this purpose, the heating unit 5 is arranged at a distance from the cooking support 4. The number of inflow channels 10 per unit area is greater in an edge region of the respective cooking zone 11 than in a central region of the respective cooking zone 11 and greater than in an edge region of the cooking support 4. A cross-sectional area of ​​the inflow channels 10 varies according to the position of the respective inflow channel 10 relative to the cooking zone 11.The inflow channels 10 arranged in an edge region of the cooking area 11 have a larger cross-sectional area than those inflow channels 10 in the central region of the cooking area 11 and in the edge region of the cooking food support 4.

[0085] The inflow channels 10 are designed to be permeable to gases and liquids. A drip tray 27 for overflow liquids is arranged below the cooking tray 4. In a top view, the drip tray 27 overlaps a plurality of the inflow channels 10.

[0086] The hob system 1 comprises six hobs 2, each with a cooking food support 4. The cooking food supports 4 of the respective hobs 2 are designed separately from one another.

[0087] The operation of the hob system 1 according to the Fig. 3 The illustrated embodiment corresponds to the functionality of the cooktop system 1 according to the embodiment described above. Because the cooktop system 1 comprises several cooktops 2 with only a single heating unit 5, the dimensions of the cookware supports 4 are correspondingly small. The cookware supports 4 can thus be particularly easily removed from the respective cookware support receptacle 13 and cleaned, particularly in a dishwasher.

[0088] After removing the food carriers 4 from the respective food carrier receptacle 13, the drip trays 27 can be easily cleaned from above. The filter 14 arranged on the respective food carrier 4 can be cleaned or replaced particularly easily.

[0089] Based on the Fig. 4 bis Fig. 6 A further embodiment of the invention is described. In contrast to the previously described embodiments, the cooking food support 4 has a single inlet channel 10. An upper side of the inlet channel 10 forms the single inlet opening 18 of the extractor device 3. The inlet opening 18 is covered by an inlet grille 28.

[0090] The cooktop system 1 comprises a cooktop cover 29 for reversibly covering the cooking support 4 and the air inlet opening 18. The cooktop cover 29 comprises a cover body 30 that is movable relative to the cooking support 4. The cover body 30 can be arranged in a closed position and an open position. In the closed position, the cover body 30 completely conceals the cooking support 4 and the air inlet opening 18 in a plan view. The cover body 30 comprises a sealing seal 31 for hermetically sealing the air inlet opening 18 in the closed position.

[0091] The hob cover 29 is hingedly attached to the hob 2. In the open position, the hob cover 29 exposes the cooking support 4, in particular the cooking zones 11, for heating the cooking food, as well as the inlet opening 18 for extracting cooking vapors.

[0092] The surface of the cooking support 4 is arranged flush with the surface of the worktop 8. In the closed position, the cover body 30 rests on the edge of the worktop 8. According to an alternative embodiment not shown, the surface of the cooking support 4 can be arranged below the surface of the worktop 8, and a surface of the cooktop cover 29 can be arranged flush with the surface of the worktop 8 in the closed position.

[0093] The Fig. 5 shows a section of the cooktop system 1 from below. The extractor device 3 of the cooktop system 1 comprises four fans 19. The fans 19 have a horizontally oriented axis of rotation 20. In a plan view, the fans 19 are arranged equidistantly and equiangularly distributed around a vertical axis passing through a center of gravity of the inlet opening 18. The axes of rotation 20 of any two adjacent fans 19 are oriented at an angle of 90° to each other. The diameter D of the fan impellers 25 is 120 mm. The fans 19 are designed as axial fans.

[0094] The fans 19 are connected to the inlet opening 18 via a common negative pressure duct section 17. The extractor device 3 comprises a positive pressure duct section 26 that fluidically connects the fans 19.

[0095] As in the Fig. 6 The total height H of the cooktop system shown is 150 mm. Downstream of the inlet opening 18 is a hollow cylindrical filter 14 with a drip tray 17 for overflow liquids. The filter 14 is designed as a grease filter.

[0096] The operation of the hob system 1 according to the Fig. 4 bis Fig. 6 The illustrated embodiment corresponds to the functionality of the cooktop system 1 according to the previous embodiments. The inlet grille 28 is reversibly removable from the cookware support 4. The filter 14 can be removed from the inlet opening 18. The cooktop cover 29 can be pivoted between the closed position and the open position. The cookware support 4 is firmly connected to the worktop 8.

[0097] Based on the Fig. 7 and Fig. 8 A further example not according to the invention is described. In contrast to the preceding exemplary embodiments, the hob system 1 comprises a hob 2 with four heating units 5 arranged side by side. An inlet opening 18 of the extractor device 3 has a rectangular contour and is arranged behind the heating units 5 or the cooking areas 11. The inlet opening 18 is in air-conducting connection via a vacuum duct section 17 with four fans 19, each of which has a fan wheel 25. The axes of rotation 20 of the fan wheels 25 are parallel to one another and oriented horizontally.

[0098] A maximum front height HV in a horizontal area from a front edge 20a to a geometric center of gravity SP of the cooktop system 1 is 120 mm or less. The height HV of the cooktop system 1 in this area can, in particular, be in the range of only 3 cm to 5 cm. The cooktop system 1 has such a low height, in particular starting from its front edge 20a over a depth T of at least 30 cm, in particular at least 40 cm. A total height H of the cooktop system 1 is 180 mm or less.

[0099] The hob cover 29 has two cover bodies 30. The two cover bodies 30 can be arranged independently of each other between the open and closed positions. In the closed position, each of the cover bodies 30 completely covers two of the cooking zones 11 and half of the air inlet opening 18.

[0100] The two cover bodies 30 are each attached to the cooktop system 1 via a rotating mechanism 31a. The rotating mechanism 31a has a drive spring (not shown) and a damping element (also not shown). The rotating mechanism 31a ensures smooth and damped opening and closing of the respective cover body 30.

[0101] As in the Fig. 8 As shown, the extractor device 3 comprises two filters 14a, 14b arranged in the vacuum duct section 17. The first filter 14a, arranged downstream of the inlet opening 18 in the flow direction, is designed as a grease filter, and the second filter 14b is designed as an odor filter. An activated carbon filter serves as the odor filter. The second filter 14b can, in particular, comprise one or more activated carbon elements. These can be easily replaceable. They can, in particular, be removed through the inlet opening 18.

[0102] Alternatively or in addition to the second filter 14b in the negative pressure duct section 17, an odor filter, in particular in the form of an activated carbon filter, can be arranged downstream of at least one of the fans 19. It is particularly possible to arrange a corresponding odor filter downstream of each of the fans 19. These odor filters are preferably replaceable, in particular replaceable without tools. They can be removed from the positive pressure duct section 26, in particular, via the respective removal openings provided.

[0103] The hob cover 29 comprises a closing cover 32 connected to the cover body 30 for airtight closure of the inlet opening 18. The cover body 30 is arranged at a distance from the closing cover 32.

[0104] The functionality of the cooktop system 1 corresponds to the functionality of the cooktop system 1 according to the previously mentioned embodiments. Due to the relative displaceability of the cover bodies 30 to one another, the inlet opening 18 can be covered either completely, partially, or completely. When the inlet opening 18 is covered partially, the extraction performance in the uncovered area of ​​the inlet opening 18 is increased while the fan 19 performance remains the same. The uncovered cooking zones 11 can continue to be used to heat food 6. The cooking zones 11 covered by the cover body 30 are automatically deactivated. For this purpose, the control unit is in signal communication with contact switches 33 for detecting the cover body 30 in the closed position.

[0105] Based on the Fig. 9 and Fig. 10 A further exemplary embodiment of the invention is described. In contrast to the previous exemplary embodiments, the extractor device 3 comprises two inlet openings 18, which are formed by two inlet channels 10 penetrating the cooking product support 4. The extractor device 3 also comprises two guide elements 34, which are each arranged adjacent to the inlet openings 18 and oriented parallel to a main extension of the inlet openings 18. The guide elements 34 are each designed as a simply curved shell. The guide elements 34 are displaceable relative to the cooking product support 4 between a reset position and a guide position. In the guide position, the respective guide element 34 is arranged at least in sections above the cooking product support 4. In the guide position, the respective guide element 34 shades an upper space located upstream of the respective inlet opening 18 on one side opposite the inlet opening 18.In the reset position, an upper side of the respective guide element 34 is arranged flush with the respective adjacent inlet opening 18.

[0106] The guide elements 34 have a closing element 35. The closing element 35 is designed to cover the respective inlet opening 18 in the reset position.

[0107] As in the Fig. 10 As shown, the hob system 1 has a guide rail 36 for moving the guide elements 34.

[0108] The functionality of the Fig. 9 and Fig. 10The illustrated cooktop system 1 corresponds to the functionality of the cooktop system 1 according to the exemplary embodiments described above. The displacement of the respective guide element 34 along the guide guide 36 enables one-sided shading of the upper space for directed extraction of the cooking odors in the guide position and closure of the respective inlet opening 18 in the return position, reliably preventing the escape of odors from the extractor device 3.

Claims

1. Hob system (1), comprising 1.

1. a cooking surface (2) for heating food (6) and 1.

2. an extractor device (3) for extracting cooking fumes downwards, having 1.2.

1. at least one inlet opening (18) for cooking fumes to enter the extractor device (3), and 1.2.

2. at least two fans (19), having mutually oblique axes of rotation (20), for drawing in the cooking fumes through the at least one inlet opening (18), 1.

3. wherein a front construction height (Hv) of the hob system (1) in a horizontal region between a front edge (20a) and a geometric area centre of gravity (SP) of the hob system (1) is at most 100 mm, 1.

4. wherein a total construction height (H) of the hob system (1) is at most 250 mm.

2. Hob system (1) according to claim 1, characterised in that the at least one fan (19) has a fan wheel (25) of a diameter of at most 150 mm.

3. Hob system (1) according to either claim 1 or 2, characterised by a flat region in which a construction height of the hob system (1) is at most 75 mm, the flat region extending over at least 25% of a total construction depth (T) of the hob system (1) from the front edge (20a).

4. Hob system (1) according to any of the preceding claims, characterised by at least one odour filter arranged in a negative pressure duct portion (17).

5. Hob system (1) according to any of the preceding claims, characterised by at least one guide element (34), adjacent to the at least one inlet opening (18) and displaceable along a vertical direction, for one-sided shading of an upper space located upstream from the at least one inlet opening (18).

6. Hob system (1) according to claim 5, characterised in that an upper face of the at least one guide element (34) can be arranged in a reset position below or flush against the inlet opening (18) adjacent thereto.

7. Hob system (1) according to any of the preceding claims, characterised in that the at least one inlet opening (18) has a cross-sectional area of at most 100 mm2.

8. Hob system (1) according to any of the preceding claims, characterised in that it is designed as an installation unit.

9. Hob system (1) according to any of the preceding claims, characterised in that the at least one fan (19) is arranged horizontally completely behind a geometric area centre of gravity (SP) of the hob system (1) in a plan view.

10. Hob system (1) according to any of the preceding claims, characterised by at least three of the fans (19).

11. Hob system (1) according to any of the preceding claims, characterised by a hob cover (29) which can be displaced relative to the hob (2) and which 11.

1. can be arranged in an open position, in which the at least one inlet opening (18) and at least one hotplate (11) of the hob (2) are uncovered, and 11.

2. can be arranged in a closed position, in which the at least one inlet opening (18) and the at least one hotplate (11) are covered at least in part in a plan view, the hob (2) comprising 11.

3. a food carrier (4) for carrying the food (6) and 11.4 at least one hotplate (11).

12. Hob system (1) according to claim 11, characterised in that the at least one hob cover (29) hermetically seals the at least one inlet opening (18) in the closed position.

13. Hob system (1) according to either claim 11 or claim 12, characterised in that the hob cover (29) comprises at least two mutually independently displaceable cover bodies (30).