Cooktop system

Abstract

The invention relates to a cooktop system (1) comprising a support (4) for supporting items to be cooked (6), at least one heating unit (5) for heating the items to be cooked (6), arranged at the support (4), and an extractor device (3) for extracting cooking vapors downwards, a total width (B) of the cooktop system (1) being at most 600 mm.

Description

[0001] This patent application claims priority from German patent application DE 10 2019 202 088.7.

[0002] The invention relates to a cooktop system. Furthermore, the invention relates to a kitchen workstation with such a cooktop system.

[0003] WO 2012 / 146237 A1 discloses an extractor device for extracting cooking fumes downwards. The cooktop system has an inlet opening through which the cooking fumes are extracted. This inlet opening is arranged in a central area of ​​the cooktop system for efficient extraction of the cooking fumes. A disadvantage is that this arrangement of the inlet opening results in increased installation space requirements in the horizontal direction.

[0004] Hob systems are also known from DE 10 2016 211 207 A1, WO 2013 / 166445 A1, DE 10 2010 042 436 A1, US 2014 / 0034040 A1, and WO 2017 / 029128 A1. A device for extracting cooking vapors is known from DE 10 2007 002 241 A1.

[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 the cooktop system with a cooking support, at least one heating unit and an extractor device for extracting cooking fumes downwards must have a maximum total width of 600 mm in order to be particularly flexible in use and installation. Such a cooktop system enables particularly intensive use of the space available in a kitchen. Particularly in urban areas with increasingly smaller residential units, such a cooktop system can contribute to intensive and comfortable use of living space, in particular by reducing the work surface required. It is particularly advantageous that such a cooktop system can be installed in a kitchen base unit with a maximum storage space width of 600 mm, which significantly increases the design freedom when planning a kitchen.

[0007] According to one aspect of the invention, the cooktop system comprises at least two heating units, in particular at least three heating units, in particular at least four heating units. The at least one heating unit can be designed as a radiant heating unit and / or as an induction heating unit and / or as a mass heating unit and / or as a Tepan heating unit. In particular, the at least one heating unit can be designed for operation with electrical energy and / or with fuel gas.

[0008] According to the invention, a total width of the hob system with the cooking food support, with all of the heating units and with the extractor hood, with a fan and a negative pressure duct section, is a maximum of 600 mm, in particular a maximum of 580 mm, in particular a maximum of 560 mm, in particular a maximum of 500 mm, in particular a maximum of 450 mm, in particular a maximum of 400 mm, in particular a maximum of 350 mm, in particular a maximum of 300 mm. A total depth of the hob system with the cooking food support, all of the heating units and the extractor hood, in particular with the fan and / or the negative pressure duct section, is preferably a maximum of 600 mm, in particular a maximum of 550 mm, in particular a maximum of 515 mm, in particular a maximum of 500 mm, in particular a maximum of 450 mm. According to a particularly preferred embodiment, the total width is a maximum of 560 mm and the total depth is a maximum of 515 mm.The overall width of the hob system is the extent of the hob system parallel to a front edge of the hob system facing a user, in particular of the cooking support, in particular in a horizontal plane. The overall depth is the extent of the hob system perpendicular to a front edge of the hob system facing the user, in particular of the cooking support, in particular in a horizontal plane.

[0009] According to one aspect of the invention, a ratio between the total depth and the total width is at least 0.8, in particular at least 0.9, in particular at least 1, in particular at least 1.2, in particular at least 1.5, in particular at least 1.8.

[0010] According to the invention, the extractor device has an inlet opening through which the cooking fumes are extracted. The inlet opening is arranged at a distance from an edge region of the cooking support. According to an embodiment not claimed, the inlet opening can be directly adjacent to the edge region of the cooking support.

[0011] The inlet opening can be round in a plan view, in particular non-circular or circular and / or oval or in the shape of a polygon, in particular in the shape of a triangle or in the shape of a square or in the shape of a pentagon or in the shape of a hexagon.

[0012] According to one aspect of the invention, the cooktop system comprises power electronics for supplying the at least one heating unit with electrical power. The power electronics preferably comprise at least one, in particular at least two, in particular at least three power electronics boards. A separate, independent power electronics board can be provided for each of the heating units. Preferably, at least one power electronics board is designed to supply two of the heating units with electrical power. All of the power electronics boards can also be designed to supply two or more heating units. The heating units are preferably induction heating units. The power electronics can accordingly comprise induction generators.The arrangement of the power electronics on separate power electronics boards advantageously ensures that they can be arranged particularly compactly and, in particular, can be arranged particularly flexibly with respect to the other components of the hob system.

[0013] According to a further aspect of the invention, at least one of the power electronics boards is oriented vertically and / or at least one of the power electronics boards is oriented horizontally. At least one of the power electronics boards can also be oriented obliquely to a vertical direction and a horizontal plane. This advantageously allows the power electronics boards to be arranged particularly flexibly and thus in a space-saving manner.

[0014] Preferably, at least one cooling fan is provided to cool the power electronics. Preferably, at least one cooling fan is arranged on each of at least two of the power electronics boards. Cooling of the power electronics can thus be particularly effective and efficient.

[0015] According to one aspect of the invention, at least two power electronics boards are provided, which are connected to each other for signal transmission and / or power transmission. The connection can be made by means of a flexible cable connection and / or rigid conductor rails.

[0016] Preferably, a heat sink is provided on the power electronics, in particular on at least two, in particular on all, power electronics boards. This enables effective cooling of several of the power electronics boards using only a small number of cooling fans, in particular only one cooling fan.

[0017] The power electronics are preferably designed to supply the at least one heating unit and the extractor device, in particular the at least one fan, with electrical power. For example, a fan control of the extractor device can be integrated into the power electronics. In particular, the power electronics for supplying the extractor device with electrical power can be arranged on the same power electronics board as the power electronics for the at least one heating unit. Such a design is particularly space-saving and can be implemented economically. Preferably, at least one interface is provided on the at least one power electronics board for connecting external elements, such as a window tilt sensor and / or a user interface.

[0018] The at least one power electronics board is preferably arranged in a top view in an edge region of the cooktop system. The at least one power electronics board is preferably arranged at a maximum distance of 50 mm, in particular a maximum of 20 mm, from an outer edge of the cooktop system. A central area of ​​the cooktop system is thus available for the downward extraction of cooking vapors. For example, the at least one power electronics board can be arranged in a front edge region and / or in a rear edge region and / or in a lateral edge region of the cooktop system.

[0019] According to a further aspect of the invention, at least two power electronics housings are provided for accommodating at least one of the power electronics boards.

[0020] According to a further aspect of the invention, at least one partition is provided between two of the power electronics boards. The partition can be a component of the at least one power electronics housing. The partition can be designed to shield the respective power electronics board from magnetic fields and / or electromagnetic radiation and / or moisture.

[0021] According to a further aspect of the invention, the power electronics housing is formed in one piece, in particular integrally, in particular materially bonded, with a cooking vapor duct, in particular a vacuum duct section and / or a positive pressure duct section, of the extractor device. The power electronics housing can be connected to the cooking vapor duct in a heat-conducting manner, in particular gas-tight with respect to the cooking vapor duct, and / or in a flow-conducting manner. This advantageously ensures that the cooking vapor stream can be used to cool the power electronics. For example, a control device for controlling the electronics fans can be designed such that the electronics fans are controlled as a function of the cooking vapor extractor. The cooktop system can thus be operated particularly energy-efficiently.

[0022] According to a further aspect of the invention, a dimension, in particular in the main extension direction, and / or a diameter of a cooking area that can be heated by means of the at least one heating unit is in a range from 50 mm to 300 mm, in particular from 60 mm to 250 mm, in particular from 75 mm to 220 mm. The diameter of induction coils of the respective heating unit is preferably in a range from 50 mm to 300 mm, in particular from 60 mm to 250 mm, in particular from 75 mm to 220 mm. The main extension of at least one cooking area and / or the diameter of at least one induction coil is preferably in a range from 50 mm to 120 mm, in particular from 60 mm to 100 mm, in particular from 70 mm to 90 mm. Such an induction coil is preferably designed to transmit a maximum heating power of at least 300 W, in particular at least 400 W, in particular at least 500 W, in particular at least 600 W.Correspondingly small and powerful heating units enable a particularly compact design of the hob system, especially with a maximum total width of 600 mm.

[0023] The invention further relates to a combination appliance comprising a hob system according to the above description and an oven, in particular an oven. The combination appliance is preferably provided as an assembly unit. The extractor hood device can be in fluid communication with an oven interior and / or a housing space surrounding the oven interior. The extractor hood device is preferably in air-conducting communication with the oven interior to generate a circulating air flow and / or to extract cooking fumes, in particular moisture. The extractor hood device can be in air-conducting communication with the housing space to provide a cooling air flow. The combination appliance is particularly compact and economical to implement. In particular, the combination appliance can be easily and economically integrated into a kitchen base cabinet. The kitchen base cabinet can be designed with or without a rear wall.

[0024] A main dimension, in particular a diameter, of the inlet opening is preferably at least 100 mm, in particular at least 140 mm, in particular at least 160 mm, in particular at least 170 mm. A main dimension, in particular a diameter, of the inlet opening is preferably a maximum of 250 mm, in particular a maximum of 220 mm, in particular a maximum of 200 mm, in particular a maximum of 180 mm. This allows for particularly efficient extraction of cooking fumes while simultaneously maintaining a very compact design of the cooktop system.

[0025] According to a further aspect of the invention, the extractor extraction device comprises at least one grease filter and / or at least one odor filter. The at least one odor filter can be arranged in a positive pressure duct section, in particular downstream of the at least one fan. Preferably, the at least one odor filter can be reversibly removed from the extractor extraction device through the inlet opening of the latter. For this purpose, the extractor extraction device can have a filter change chamber which connects the positive pressure duct section with the negative pressure duct section. The filter change chamber is preferably reversibly closable. Circulation of cooking fumes through the filter change chamber during operation of the extractor extraction device can thus be reliably prevented.To close the filter change chamber, a suction chamber closure for reversibly closing the vacuum channel section and / or a pressure chamber closure for reversibly closing the positive pressure channel section are preferably provided. The suction chamber closure and the pressure chamber closure can be connected to one another as a single piece.

[0026] According to a further aspect of the invention, the maximum power output of the at least one heating unit, in particular of the at least one induction coil, is in a range of 300 to 4000 watts. Preferably, a ratio of the maximum powers of at least two of the heating units, in particular of the induction units, is at least 150%, in particular at least 200%, in particular at least 300%, in particular at least 500%, in particular at least 750%. A ratio of main dimensions, in particular diameters, of at least two of the cooking zones is preferably at least 150%, in particular at least 200%, in particular at least 300%.

[0027] The hob system can, in particular, have at least one cooking zone with a diameter of at most 100 mm, in particular at most 90 mm, in particular at most 80 mm, in particular at most 70 mm, in particular at most 60 mm. It can also have at least one cooking zone with a diameter of at least 160 mm, in particular at least 180 mm, in particular at least 200 mm, in particular at least 220 mm, in particular at least 240 mm. By providing a particularly large cooking zone and a particularly small cooking zone, on the one hand, the flexibility with regard to the use of the hob system is improved. On the other hand, this enables particularly good utilization of the available installation space.

[0028] The smallest of the cooking zones can, in particular, have a maximum power in the range of 300 W to 800 W, in particular in the range of 400 W to 600 W. The largest of the cooking zones can, in particular, have a maximum power in the range of 2000 W to 5000 W, in particular in the range of 2500 to 4000 W.

[0029] According to a further aspect of the invention, an areal density of the maximum power of the at least one induction coil is in a range from 0.05 W / mm 2< to 0.15 W / mm 2< , in particular from 0.06 W / mm 2< to 0.13 W / mm 2< , in particular from 0.07 W / mm 2< to 0.12 W / mm 2< . Preferably, the areal density of the maximum power of at least one of the induction coils is at least 0.1 W / mm 2< , in particular at least 0.12 W / mm 2< , in particular at least 0.14 W / mm 2< , in particular at least 0.15 W / mm 2< , in particular at least 0.2 W / mm 2< . Preferably, a ratio of the areal density of the maximum power of two induction coils of the hob system is at least 120%, in particular at least 130%, in particular at least 150%, in particular at least 200%.According to a further aspect of the invention, at least different induction coils are provided, wherein the induction coil which is larger in terms of its main dimension has an areal density of a maximum power which is at least 10%, in particular at least 20%, in particular at least 50%, lower than the areal density of the maximum power of the smaller induction coil.

[0030] According to a further aspect of the invention, a geometric centroid of the inflow opening is arranged in a plan view at a distance from a geometric centroid of the cooking surface. With regard to the depth and / or width of the cooktop system, the geometric centroid of the inflow opening can be arranged centrally in the cooking surface. Particularly preferably, the geometric centroid of the inflow opening is arranged off-center with regard to the width of the cooking surface and centrally in the cooking surface with regard to the depth of the cooking surface, or vice versa. This enables a particularly space-saving and at the same time pleasing arrangement of the inflow opening and the cooking surfaces.

[0031] The invention further relates to the fundamentally independent aspect, which can be combined with the above features of the hob system, according to which the hob system is designed to be installed in different orientations, in particular in a kitchen base cabinet and / or in a kitchen worktop. In particular, the hob system can be designed for installation optionally in a first orientation or a second orientation, wherein the hob system in the second orientation is rotated by 90° or 180° about a vertical axis relative to the first orientation. A user interface of the hob system is preferably arranged on the cooking product support, in particular attached thereto.The user interface can be rotationally symmetrical and / or can be arranged in different orientations on the cookware support and / or can be arranged reversibly pivotably on the cookware support and / or can include a screen designed for the reversibly pivotable display of control information. The cooktop system can thus be flexibly adapted to various installation situations.

[0032] According to a further aspect of the invention, the cooktop system comprises a mounting frame. The mounting frame is preferably designed for height-adjustable attachment of the cooktop system to a kitchen worktop and / or a kitchen base cabinet. This significantly simplifies the installation of the cooktop system.

[0033] According to a further aspect of the invention, the extractor device is arranged completely below the cooking food support.

[0034] According to the invention, the total vertical height of the cooktop system including the cooking support, all heating units, and the extractor hood, in particular including the fan and / or the vacuum duct section, is a maximum of 250 mm, in particular a maximum of 220 mm, particularly preferably a maximum of 200 mm, in particular a maximum of 180 mm, in particular 160 mm, in particular 150 mm, in particular 120 mm, in particular 100 mm. The total height can, in principle, also be greater.

[0035] According to the invention, the extractor device has at least one, in particular at least two, in particular at least three fans for extracting cooking fumes. The cooktop system, including the cooking support, all of the heating units, and the extractor device, in particular the fan and / or the vacuum duct section, is preferably designed as a combined device. This enables the cooktop system to be installed as a single piece, for example, on a worktop. This can significantly reduce the assembly effort.

[0036] According to a further aspect of the invention, the cooktop system comprises exactly three heating units. Because the cooktop system has only three heating units, the cooktop system can be designed with a particularly small overall width. At the same time, the cooktop system with the three heating units offers sufficiently high flexibility with regard to the simultaneous heating of different cooking items.

[0037] According to the invention, at least one inlet opening penetrates the cooking support. This advantageously allows the inlet opening to be positioned particularly close to the heating units. Cooking fumes can thus be extracted directly at the point of their origin. The extractor hood can thus be operated particularly energy-efficiently. The extractor hood can also have two, three, or four inlet openings.

[0038] According to a further aspect, the at least one inlet opening is followed by an inlet channel with a starting section directly adjacent to the inlet opening. The starting section can have a central longitudinal axis that is inclined to a hob normal. The hob normal is understood to be a direction perpendicular to a work surface of the hob, in particular of the cooking food support. An angle between the central longitudinal axis and the hob normal is preferably in a range from 10° to 180°, in particular from 30° to 60°, in particular from 40° to 50°, and in particular it is exactly 45°.

[0039] According to a further aspect of the invention, the extractor hood device has an inlet grille that can be arranged at the at least one inlet opening. The inlet grille can have at least one guide element, in particular oriented in the direction of the at least one heating element, for the directed extraction of cooking vapors. The guide element can be designed as a guide plate, in particular as a louvre plate. Preferably, the at least one guide element does not project upwards above the cooking product carrier. Alternatively, the guide element can project beyond the cooking product carrier. Preferably, the inlet grille at least partially surrounds the inlet opening above the cooking product carrier. The at least one guide element can shade a region of the inlet opening facing away from the at least one heating unit. For this purpose, the inlet grille preferably has a wall that shades the inlet opening at least partially in the horizontal direction and / or upwards.Preferably, the inlet grille can be arranged reversibly at the inlet opening.

[0040] According to a further aspect of the invention, the inlet grille does not completely cover the inlet opening. For example, the inlet opening can be oval in plan view and the inlet grille can be round in plan view. The inlet opening can completely enclose the inlet grille in plan view. The cooking vapors extracted through the inlet opening are then only partially directed through the inlet grille, not completely.

[0041] According to a further aspect of the invention, a geometric centroid of the at least one inlet opening is arranged at a distance from a geometric centroid of the cooking food support in a plan view. This advantageously allows the cooktop system to be designed to be particularly compact, particularly in the horizontal direction.

[0042] According to a further aspect of the invention, the at least one inlet opening is arranged in a plan view in the width direction and / or depth direction at a distance from the geometric center of gravity of the cooking support. Because the at least one inlet opening does not overlap the geometric center of gravity of the cooking support, a particularly compact design of the cooking surface system can be ensured.

[0043] According to a further aspect of the invention, the cooktop system comprises a plurality of heating units, wherein, in plan view, a minimum distance between the geometric center of gravity of the cooking support and a first of the heating units is at least twice as large as a minimum distance between the geometric center of gravity of the cooking support and a second of the heating units. This allows the cooktop system to be designed to be particularly compact in the horizontal direction. This applies particularly when using heating units of different sizes.

[0044] According to a further aspect of the invention, at least one of the heating units is non-circular in plan view, in particular quadrangular, in particular square or rectangular, or triangular or hexagonal, in particular in the shape of a regular hexagon. Preferably, the at least one heating unit and the inlet opening are each designed in the shape of a regular hexagon. This enables a particularly compact design. Furthermore, the available area beneath the cooking food support can be used particularly intensively. The smallest distance between all of the heating units is preferably a maximum of 40 mm, in particular a maximum of 20 mm, in particular a maximum of 10 mm.

[0045] According to a further aspect of the invention, the distances between the at least one inlet opening and the respective heating unit differ by a maximum of 50%, in particular a maximum of 30%, in particular a maximum of 10%. Preferably, all of the heating units are arranged at the same distance from the at least one inlet opening in a plan view. This reliably ensures equally efficient extraction of cooking vapors above each of the heating units.

[0046] According to a further aspect of the invention, the minimum distance between the at least one inlet opening and the at least one heating unit in a plan view is a maximum of 50 mm, in particular a maximum of 30 mm, in particular a maximum of 10 mm. The extraction of cooking vapors can thus be carried out in a particularly energy-efficient manner.

[0047] According to a further aspect of the invention, the at least one heating unit overlaps the geometric center of gravity of the food support in a plan view. This enables a particularly compact design of the cooktop system in the horizontal direction. According to a further aspect of the invention, the cooktop system has a user interface for controlling the at least one heating unit and / or the extractor hood. The user interface can be arranged in a plan view relative to at least one of the heating units such that it is opposite the inlet opening. This advantageously ensures a particularly compact arrangement of the at least one heating unit, the inlet opening and the user interface in the horizontal direction.

[0048] The invention is also based on the object of creating an improved kitchen workstation.

[0049] This object is achieved by a kitchen workstation having the features of claim 12. According to the invention, it was recognized that a kitchen workstation must have a kitchen base cabinet with a storage space having a maximum storage space width of 600 mm and a hob system according to the above description, wherein the at least one heating unit and the extractor hood are arranged entirely within the storage space in a plan view, in order to ensure particularly intensive use of space in a kitchen. The advantages of the kitchen workstation according to the invention correspond to the advantages of the hob system explained above. In particular, the kitchen workstation can be further developed with the features of the hob system.

[0050] The storage space can be delimited in the width direction by two vertical partition walls oriented parallel to each other. The partition walls are preferably spaced a maximum of 600 mm apart. The cooktop system is preferably arranged entirely between the two partition walls in a plan view. Preferably, at least one of the partition walls overlaps the extractor hood and / or the at least one heating unit in a side view. The partition walls can be designed to support a worktop. The cooktop system can be attached to the worktop.

[0051] According to a further aspect of the invention, the kitchen base unit has a rear wall. The rear wall can have a recess for the passage of a cooking vapor duct, in particular an overpressure duct section connected to the cooktop system.

[0052] According to a further aspect of the invention, the kitchen base cabinet has a fastening device for at least partially fastening the hob system or the overpressure channel section.

[0053] According to a further aspect of the invention, the kitchen base cabinet has a partition wall for limiting a storage space for the hob system downwards.

[0054] The kitchen base cabinet can be thermally and / or acoustically insulated. This advantageously ensures that the space below the cooktop system is reliably protected from heat buildup and / or reduces noise emissions, particularly during operation of the extractor hood.

[0055] According to an independent aspect of the invention, an extractor device for extracting cooking fumes downwards has at least one inlet opening for the inflow of cooking fumes and at least one fan for sucking in the cooking fumes at the at least one inlet opening, wherein the fan has a fan wheel rotatably mounted about a rotation axis and wherein the rotation axis is oriented at an angle to a horizontal plane and a vertical direction. Because the rotation axis is oriented at an angle to the horizontal plane and the vertical direction, the extractor device can be integrated into a cooktop system in a particularly space-saving manner and flow deflection between the inlet opening and the at least one fan can be reduced, whereby the extraction of cooking fumes can be carried out in a particularly energy-efficient manner. The fan is preferably designed as a radial fan. The fan can also be designed as an axial or cross-flow fan.

[0056] According to a particularly preferred embodiment of the extractor device, a negative pressure duct section of an exhaust air duct of the extractor device projects downwards beyond the at least one fan by a maximum of 50 mm, in particular a maximum of 25 mm, in particular a maximum of 10 mm. Even more preferably, the at least one fan projects downwards beyond the negative pressure duct section in the vertical direction. A particularly low installation height of the extractor device can thus be ensured.

[0057] According to a further aspect of the invention, an angle of inclination between the horizontal plane and the rotational axis of the at least one fan lies in a range of 10° to 85°, in particular in a range of 30° to 80°, in particular in a range of 60° to 75°. The angle of inclination can also be exactly 45°.

[0058] According to a further aspect of the invention, the intake direction of the cooking vapors in the at least one fan has an upward-pointing directional component. The angle between the horizontal plane and the intake direction is preferably at least 45°, in particular at least 60°, in particular at least 80°. Because the intake direction has the upward-pointing directional component, the fan can be reliably protected against the penetration of liquids.

[0059] According to the invention, the vacuum duct section fluidically connects the at least one inlet opening to the at least one fan. A duct center line of the vacuum duct section preferably has an absolute angular change of a maximum of 170°, in particular a maximum of 150°, in particular a maximum of 120°, in particular a maximum of 100°, along its extent. The absolute angular change is preferably at least 100°, in particular at least 120°. The absolute angular change is to be understood as the integral of an absolute value of a curvature of the duct center line along its extent. The extraction of cooking vapors can thus be carried out particularly energy-efficiently while avoiding turbulent flows, wherein the at least one fan can be reliably protected from penetrating liquids.

[0060] According to a further aspect of the invention, the channel center line is designed without any turning points. Thus, the cooking vapors can be guided in a particularly laminar manner in the vacuum channel section.

[0061] According to the invention, the at least one fan overlaps the at least one heating unit in a plan view and in a side view and / or in a front view. The heating unit preferably has power electronics for supplying a heating element with electrical power. The at least one fan, in particular a fan wheel of the at least one fan, preferably overlaps the power electronics and / or a control unit of the cooktop system and / or a user interface of the cooktop system in the plan view and in the side view and / or in the front view. This advantageously ensures that the cooktop system can be designed to be particularly compact, in particular in the vertical direction.

[0062] According to an independent aspect of the invention, the fan for sucking in cooking fumes has a fan housing with a vacuum connection opening and a fan wheel arranged in the fan housing and mounted so as to be rotatable about a rotation axis, wherein the rotation axis encloses a connection angle with a connection normal oriented perpendicular to the vacuum connection opening, which connection angle lies in a range of 10° to 85°, in particular in a range of 30° to 80°, in particular in a range of 60° to 75°. This advantageously ensures that the fan can be connected particularly easily to a starting section of a vacuum duct section. In particular, a connection region of the starting section can be oriented substantially vertically or horizontally. Intermediate elements for connecting the starting section to the vacuum connection opening can thus be avoided.The fan can therefore be used particularly cost-effectively for an extractor hood to extract cooking fumes downwards and / or for a hob system.

[0063] The extractor hood preferably has at least three, in particular at least four, in particular at least five, in particular at least six, in particular at least eight, fans. This allows the extractor hood to be particularly compact, i.e., with reduced installation space, and to operate with particularly low noise levels. The at least three fans can be designed as axial fans and / or radial fans and / or cross-flow fans. 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 dimensions of the extractor hood.

[0064] According to one aspect of the invention, the at least one fan has a fan wheel with a diameter of at most 250 mm, in particular at most 200 mm, particularly preferably 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. The extractor extraction device can thus be designed to be particularly compact. The installation space required by the extractor extraction device is minimal.

[0065] 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.

[0066] Preferably, the height of the extractor hood is at most 220 mm, in particular at most 200 mm, in particular at most 150 mm, in particular at most 120 mm, in particular at most 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.

[0067] According to a further aspect, the at least one fan is 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 one fan. Preferably, all of the fans are connected to one another in an air-conducting manner via the negative pressure duct section. The at least one fan 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 fans can be controlled independently of one another, in particular by means of a corresponding control device.This allows cooking fumes to be extracted independently of each other via the individual intake openings. To vary the extraction performance, either all or individual 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. The extraction performance remains controllable by activating a smaller number of fans than the total number of fans.

[0068] The extractor device can have a filter for filtering cooking fumes. Because several of the 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.

[0069] 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 hood can be designed to be particularly space-saving and have a particularly low overall height.

[0070] The filter can be glued to the cooking support and / or connected to the cooking 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 cooking support. The filter can be designed as a grease filter. Preferably, the area of ​​the filter covered by the cooking support in a plan view is at least 50% of the area of ​​the cooking support in a plan view. This ensures energy-efficient filtration of cooking vapors.

[0071] 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 food 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. The cover is preferably adapted to the cooking food support, in particular in terms of color and / or structure, in such a way that they are visually barely distinguishable from one another, or not at all.

[0072] 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.

[0073] According to one aspect of the invention, the extractor extraction device has at least one fan motor, which is each connected in a rotationally driving manner 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 connected in a rotationally transmitting manner 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 connected in a rotationally transmitting manner 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.

[0074] 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.

[0075] According to a further aspect of 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 axis of rotation of the at least one fan can be oriented vertically and / or horizontally. The axis of rotation of the at least one fan can also be arranged inclined to the vertical direction, wherein an angle to the vertical direction is greater than 5° and less than 85°. The axes 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°.

[0076] According to a further aspect of the invention, the extractor hood 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 hood from which the cooking fumes are extracted downwards by means of the extractor hood. 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.

[0077] 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.

[0078] 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.

[0079] The at least one guide element may include lighting. The at least one guide element may also include a user interface for controlling the at least one fan and / or the at least one cooking surface.

[0080] Preferably, the at least one guide element is displaceable relative to the at least one inlet opening. For this purpose, the extractor hood device may comprise 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.

[0081] According to a further aspect of the invention, an upper side of the at least one guide element can be arranged in the reset position below or flush with the adjacent inlet opening. An area above the inlet opening can thus be used for placing cooking items without being affected by the at least one guide element.

[0082] Preferably, the guide element comprises a closing element for closing, in particular airtight, the at least one inflow opening in the reset position.

[0083] 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. The extraction of cooking vapors can thus be more directed and thus particularly efficient.

[0084] 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 the cooking fumes can thus take place at a variety of different positions and in the immediate vicinity of the location where the cooking fumes arise. The extraction of the cooking fumes is therefore particularly efficient.

[0085] 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 connection, in particular via a separate vacuum duct section, to at least one fan for sucking in the cooking fumes. 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.

[0086] Another object of the invention is to improve a hob system.

[0087] This object is achieved by a cooktop system with an extractor hood according to the above description and a cooktop for heating food. The advantages of the cooktop system according to the invention correspond to the advantages of the extractor hood described above. The cooktop preferably comprises at least one food support and at least one heating unit arranged below the food 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 cooktop system can in particular have four cooktops each with a diameter or a length and width of 24 cm.

[0088] 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.

[0089] 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.

[0090] 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 hob system with a particularly low overall height in the front area, in particular in the area of ​​the hobs, which are also referred to as cooking areas. The hob system can have an overall height of at most 10 cm, in particular at most 5 cm, in particular at most 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 on the overall height of the hob system applies in particular to the entire area in which the hobs are arranged. The hob 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.

[0091] According to a further aspect of the invention, the cooktop system has an L-shaped cross-section. It can have a lower overall height, particularly in its front area, especially in the area where the cooktops are arranged, than in the area of ​​its rear edge. In this case, electronic components and / or the fan(s), in particular the fan wheel(s), can be arranged in the area of ​​the rear edge.

[0092] According to a further aspect of the invention, the cooktop system can have a cross-section that is L-shaped in the transverse direction. It can, in particular, have a greater overall height in one or both of its edge regions than in its central region. This also makes it possible to ensure that the cooktop system has a particularly low overall height in its central region. It is, in particular, possible to arrange electronic components and / or fans or their components and / or other components of the cooktop system in an edge region, in particular in a rear and / or a lateral edge region.

[0093] 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.

[0094] 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 product carrier. The gas-permeable and liquid-repellent layer can be arranged above or below the cooking product carrier. The gas-permeable and liquid-repellent layer can be attached to the cooking product carrier 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 product carrier and / or the at least one inlet opening.

[0095] The at least one inflow opening can each delimit an inflow channel penetrating the cooking product carrier upstream. The at least one inflow channel can be designed as a bore, in particular as a micro-bore and / or as a perforation. Preferably, at least one of the inflow openings is arranged in a plan view in a central region of the cooking product carrier, in particular in the region of the geometric center of gravity of the cooking product carrier. At least one of the inflow openings can be arranged in a plan view in an edge region of the cooking product carrier.

[0096] According to one aspect of the invention, the area ratio of a perforated surface of the cooking support relative to the total surface of the cooking support in a plan view is at least 30%, in particular at least 50%, in particular at least 75%, in particular 100%. According to one aspect of the invention, the at least one cooking support is reversibly removable, in particular without tools, from a cooking support receptacle of the hob system.

[0097] The cooking support can, in particular, be designed as a separate component that can be separated from the other components of the hob system. It can also be separated, in particular removable, from the other components of the hob system together with the induction generators.

[0098] 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.

[0099] 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. Preferably, the hotplate can be heated to a maximum temperature of 120°C, in particular a maximum of 100°C, in particular a maximum of 80°C. Preferably, the cooking support 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.

[0100] According to 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 at least one fan. The cooktop system designed as a compact appliance can be installed particularly quickly and cost-effectively, especially on a worktop.

[0101] According to a further aspect of the invention, the at least one fan is 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 is arranged completely behind the cooking food support in a plan view. In this case, an axis of rotation of the at least one fan can be oriented horizontally, in particular in the depth direction of the cooktop.

[0102] According to a further aspect of the invention, a front height of the hob system in a horizontal region 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 region is possible.

[0103] 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.

[0104] The hob system can have such a low installation height, especially across the entire cooking area.

[0105] The total height of the hob system shall not exceed 250 mm, in particular 200 mm, in particular 150 mm.

[0106] Another task is to improve a hob system with a hob cover.

[0107] This object is achieved by a cooktop system with a cooktop cover that can be moved relative to the cooktop, which, in the closed position, at least partially covers the at least one inlet opening and the at least one cooking zone in a plan view, and in the open position, exposes them. It has been recognized that such a cooktop system can be used particularly flexibly and intensively. A cooking zone is the area above the cooking support in which the at least one heating unit heats the cooking zone.

[0108] 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.

[0109] According to a further aspect, the hob cover, in the closed position, only covers 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 of the cooking support.

[0110] 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.

[0111] The hob cover can be made of metal, in particular cast iron, glass or glass ceramic, or of plastic.

[0112] 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.

[0113] Preferably, the hob cover completely covers the at least one inlet opening 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.

[0114] According to one aspect, 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, particularly when the fans are deactivated.

[0115] According to a further aspect, 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, in particular adjacent, partial area of ​​the at least one inlet opening, wherein in particular a further partial area of ​​the cooking support can be used to heat cooking food. The cooking vapors can be extracted particularly intensively via the thus reduced area of ​​the inlet opening.

[0116] The cooktop cover can have at least one closure lid attached to the at least one cover body. The closure lid 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 hood. The closure seal is preferably arranged on the at least one closure lid. The at least one inlet opening can thus be closed particularly reliably, in particular hermetically.

[0117] 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 with reference to the figures. They show: Fig. 1 a perspective view of a hob system not according to the invention with a hob and an extractor device, 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 not according to the invention 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 the invention 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 not according to the invention according to a further embodiment, wherein the hob system has 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 field system not according to the invention 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 field system along the section line XX in the Fig. 9 with two fans arranged downstream of the two inlet openings, Fig. 11 a plan view of a hob system according to the invention according to a further embodiment with a cooking food support, three heating units arranged thereon and an extractor device for extracting cooking fumes downwards, wherein a total width of the hob system is 560 mm and wherein all of the heating units are arranged at the same distance from the inlet opening in a plan view, Fig. 12 a side view of the hob system in Fig. 11 , Fig. 13 a plan view of a hob system according to the invention according to a further embodiment, wherein a central longitudinal axis of an inflow channel is inclined to a hob normal, Fig. 14 a plan view of a hob system according to the invention with four heating units and an extractor device, and Fig. 15 a sectional view of the hob system along the section line XV-XV in the Fig. 14 with two fans, each having a fan wheel mounted so as to be rotatable about a rotation axis, the rotation axis being inclined to a horizontal plane and to a vertical direction.

[0118] 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.

[0119] To control the extractor hood 3 and the heating units 5, the hob system 1 includes a user interface 9. The user interface 9 is designed as a touch-sensitive screen. Via a control unit (not shown), the user interface 9 is in signal communication with the extractor hood 3 and the heating units 5.

[0120] 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.

[0121] 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.

[0122] As in the Fig. 2 As shown, the hob system 1 has a housing 12. A cooking product support receptacle 13 is arranged on the housing 12. The cooking product support 4 rests on top of the cooking product support receptacle 13 and can be removed from the latter reversibly and without tools. The cooking product support receptacle 13 has a tilting edge (not shown). The tilting edge delimits a support surface of the cooking product support receptacle 13 from a recess. The recess is designed such that by applying downward pressure to the cooking product support 4 in a region above the recess, a region of the cooking product support 4 opposite the tilting edge can be lifted.

[0123] The food carrier 4 is dishwasher-safe. In particular, the food carrier 4 is resistant to high temperatures, in particular to temperatures of at least 350°C, and is suitable for pyrolysis cleaning.

[0124] 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.

[0125] 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.

[0126] 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 upper 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.

[0127] 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.

[0128] To ensure 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.

[0129] 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, in particular, be in the range of only 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.

[0130] The fans 19 each have a fan wheel 25. The diameter D of the fan wheels 25 is 80 mm.

[0131] The hob system 1 is designed as a compact device and can therefore be easily and quickly inserted into the worktop 8 as a preassembled system. The hob system 1 designed as a compact device 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 device, but the overpressure duct section 26 arranged downstream of the fans 19 are only partially part of it.

[0132] 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.

[0133] 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 exhaust section 22a heats only the cooking items 6 located there. Activating the fan 19 connected to the exhaust section 22a extracts cooking vapors through the inlet channels 10 associated with the exhaust section 22a.

[0134] Based on the Fig. 3 An exemplary embodiment of a cooktop system 1 not 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.

[0135] 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.

[0136] 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.

[0137] The operation of the hob system 1 according to the Fig. 3 The illustrated embodiment corresponds to the functionality of the hob system 1 according to the embodiment described above. Because the hob system 1 comprises several hobs 2 with only a single heating unit 5, the dimensions of the cooking food carriers 4 are correspondingly small. The cooking food carriers 4 can thus be particularly easily removed from the respective cooking food carrier receptacle 13 and cleaned, particularly in a dishwasher.

[0138] 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.

[0139] Based on the Fig. 4 bis Fig. 6 A further embodiment of the invention is described. In contrast to the embodiments described above, 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.

[0140] The cooktop system 1 comprises a cooktop cover 29 for reversibly covering the cooking support 4 and the inlet opening 18. The cooktop cover 29 comprises a cover body 30 that can be displaced 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 inlet opening 18 in a plan view. The cover body 30 comprises a sealing seal 31 for hermetically closing the inlet opening 18 in the closed position.

[0141] 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.

[0142] 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 hob cover 29 can be arranged flush with the surface of the worktop 8 in the closed position.

[0143] 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 running 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 wheels 25 is 120 mm. The fans 19 are designed as axial fans.

[0144] 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.

[0145] As in the Fig. 6 As shown, the total height H of the cooktop system is 150 mm. A hollow cylindrical filter 14 with a drip tray 17 for overflow liquids is arranged downstream of the inlet opening 18. The filter 14 is designed as a grease filter.

[0146] 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.

[0147] Based on the Fig. 7 and Fig. 8 A further exemplary embodiment 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 next to one another. 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.

[0148] 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. An overall height H of the cooktop system 1 is 180 mm or less.

[0149] The hob cover 29 has two cover bodies 30. The two cover bodies 30 can be arranged independently of one another between the open position and the closed position. 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.

[0150] 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.

[0151] As in the Fig. 8 As shown, the extractor device 3 comprises two filters 14a, 14b arranged in the negative pressure 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, in particular, as the odor filter. The second filter 14b can, in particular, have one or more activated carbon elements. These can be easily replaceable. They can, in particular, be removed through the inlet opening 18.

[0152] 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.

[0153] The hob cover 29 comprises a closing cover 32 connected to the cover body 30 for the airtight closure of the inlet opening 18. The cover body 30 is arranged at a distance from the closing cover 32.

[0154] 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 optionally not covered at all, partially covered, or completely covered. When the inlet opening 18 is partially covered, the extraction performance in the uncovered area of ​​the inlet opening 18 is increased while the fan 19 power 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.

[0155] Based on the Fig. 9 and Fig. 10 A further exemplary embodiment not according to the invention is described. In contrast to the preceding exemplary embodiments, the extraction device 3 comprises two inflow openings 18, which are formed by two inflow 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 inflow openings 18 and oriented parallel to a main extension of the inflow 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 inflow opening 18 on one side opposite the inflow 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.

[0156] 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.

[0157] As in the Fig. 10 As shown, the hob system 1 has a link guide 36 for moving the guide elements 34.

[0158] The functionality of the Fig. 9 and Fig. 10 The hob system 1 shown corresponds to the functionality of the hob system 1 according to the exemplary embodiments described above. The displacement of the respective guide element 34 along the guide rail 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 reset position, reliably preventing the escape of odors from the extractor device 3.

[0159] Based on the Fig. 11 and the Fig. 12 A further embodiment of the invention is described. In contrast to the previous embodiments, the hob system 1 comprises a cooking support 4, three heating units 5, and an extractor device 3 with precisely one fan 19. The fan 19 of the extractor device 3 is designed as a radial fan. The fan 19 is in fluid communication with the inlet opening 18 via the inlet channel 10.

[0160] The total width B of the cooktop system 1 is 560 mm. The total height H of the cooktop system 1, including the fan 19, is 180 mm. The depth T of the cooktop system 1 is 515 mm.

[0161] The extractor hood device 3 comprises the fan 19, wherein the hob system 1 is designed as a combination device for one-piece installation in the worktop 8.

[0162] The inlet opening 18 of the fan 19 penetrates the cooking support 4. The inlet opening 18 is circular in plan view. The extractor device 3 has an inlet grille 28, which can be reversibly arranged at the inlet opening 18. In plan view, the inlet grille 28 completely covers the inlet opening 18. The inlet grille 28 comprises concentrically arranged, lamellar guide elements 34 to support the laminar extraction of the cooking vapors through the inlet grille 28 and the inlet opening 18.

[0163] A geometric centroid 37 of the inflow opening 18 is arranged at a distance from a geometric centroid 38 of the cooking product carrier 4. A distance a E between the geometric centroid 37 of the inflow opening 18 and the geometric centroid 38 of the cooking product carrier 4 is 100 mm. In plan view, the geometric centroid 37 of the inflow opening 18 is arranged at a distance from the geometric centroid 38 of the cooking product carrier 4 along a width direction 39 and a depth direction 40.

[0164] A minimum distance a H1 between the geometric center of gravity 38 of the food support 4 and a first of the heating units 5 is 75 mm and a minimum distance a H2 between the geometric center of gravity 38 of the food support 4 and a second of the heating units 5 is 10 mm. A minimum distance a EH1 between the inlet opening 18 and the first heating unit 5 is equal to a minimum distance a EH2 between the inlet opening 18 and the second heating unit 5 and equal to a minimum distance a EH3 between the inlet opening 18 and the third heating unit 5. The minimum distance a EH1, a EH2, a EH3 between the inlet opening and the heating units 5 is 40 mm.

[0165] The cooktop system 1 has the user interface 9. The user interface 9 comprises a touch-sensitive surface 41 and a plurality of display elements 42. The user interface 9 is designed to control the heating units 5 and the extractor hood 3. In a plan view, the user interface 9 is arranged opposite the inlet opening 18 relative to one of the heating units 5. In particular, an outer edge of the user interface 9 is arranged along the width direction 39 and along the depth direction 40 at a distance from the geometric center of gravity 38 of the cooking product support 4. The user interface 9 is arranged in a lateral edge region of the cooking product support 4.

[0166] In the Fig. 12 The hob system 1 is shown in a side view. The fan 19 comprises a fan housing 43. The fan housing 43 is arranged above a lowest point of the inflow channel 10. The distance between the lowest point of the inflow channel 10 and the fan housing 43 is 50 mm. The fan housing 43 is arranged entirely below the heating elements 5. This ensures a particularly compact design of the hob system 1 in the horizontal direction.

[0167] The hob system 1 is at least partially accommodated in a kitchen base cabinet 42a. The hob system 1 penetrates the worktop 8, which rests on the kitchen base cabinet 42a. The cabinet width BK of the kitchen base cabinet 42a is 600 mm. The cabinet depth TK of the kitchen base cabinet 42a is also 600 mm. The kitchen base cabinet 42a has a storage space 42b for accommodating the hob system 1 as well as drawers or shelves. The storage space width BS of the kitchen base cabinet 42a is 580 mm.

[0168] The kitchen base cabinet 42a has insulation 43a. The insulation 43a is arranged on the kitchen base cabinet 42a such that it surrounds a bottom and a front of the cooktop system 1. The insulation 43a ensures reduced noise emissions and reduced heat input into a lower area of ​​the kitchen base cabinet 42a.

[0169] The functioning of the hob system 1 according to this embodiment corresponds to the functioning of the hob systems 1 described above.

[0170] In the Fig. 13 A further embodiment of a hob system 1 is shown. In contrast to the hob systems 1 described above, an initial section 44 of the inflow channel 10 has a central longitudinal axis 45, which is oriented obliquely to a hob normal 46. The angle between the central longitudinal axis 45 of the initial section 44 and the hob normal 46 is 45°.

[0171] The initial section 44 has a circular cross-section. The inlet opening 18 is elliptical in shape due to the oblique orientation of the central longitudinal axis 45 relative to the hob normal 46.

[0172] Because the total width B of the hob system 1 is a maximum of 600 mm, in particular 560 mm, it is now possible for the first time to arrange the hob system 1 with the extractor hood 3 in a kitchen base cabinet 42a with particularly compact dimensions. This advantageously allows such hob systems 1 to be used particularly flexibly and thus to be installed on a considerably larger scale. A design of the hob system 1 with a maximum height of 200 mm is particularly advantageous, as this largely preserves the storage space 42b for storing items, for example, kitchen utensils.

[0173] In the Fig. 14 and Fig. 15An exemplary embodiment of the cooktop system 1 according to the invention is shown. In contrast to the cooktop systems 1 described above, the extractor hood device 3 comprises two fans 19, each with fan wheels 25 mounted rotatably about a rotation axis 20, wherein the rotation axes 20 are each oriented at an inclination to a horizontal plane and a vertical direction. The cooktop system 1 comprises four heating units 5 that are rectangular in plan view. The heating units 5 and the extractor hood device 3 are signal-connected to a user interface 9.

[0174] The extractor device 3 has an inlet opening 18 arranged centrally on a cooking food support 4. A starting section 44 of a vacuum duct section 17 is connected to the inlet opening 18.

[0175] The fans 19 each have a fan housing 43. The fan housing 43 includes a vacuum connection opening 47. The initial section 44 penetrates the vacuum connection opening 47. A duct connection 48 connects the initial section 44 to the fan housing 43 in a fluid-tight manner.

[0176] A connection standard 49 is oriented perpendicular to the vacuum connection opening 47. The connection standard 49 forms a connection angle α of 80° with the rotation axis 20.

[0177] A power electronics unit 50 for supplying the heating units 5 is mounted below the respective heating unit 5. Due to the inclination of the rotation axis 20, the space required for the power electronics unit 15, in particular for particularly space-intensive individual components of the power electronics unit 15, is provided in an area between the respective heating unit 5 and the fan 19.

[0178] The two fans 19 overlap the heating units 5 in both a top view and a side view. This makes the cooktop system 1 particularly compact. The total height H is 180 mm.

[0179] An intake direction 51 of the fan 19 has a vertically upward directional component. The intake direction 51 is oriented parallel to the rotation axis 20. Because the intake direction 51 has an upward directional component, the fan 19 is reliably protected from the ingress of liquids.

Claims

1. Hob system (1) comprising 1.

1. a hob (2), having 1.1.

1. a food carrier (4) for carrying food to be cooked (6), 1.1.

2. at least one heating unit (5), which is arranged on the food carrier (4), for heating the food (6), and 1.

2. a fume extraction device (3) for extracting cooking fumes downwards, having 1.2.

1. at least one fan (19) for extracting the cooking fumes, 1.2.

2. at least one inflow opening (18) that penetrates the food carrier (4), and 1.2.

3. a vacuum duct section (17), which connects the at least one inflow opening (18) in a fluid-conducting manner to the at least one fan (19), 1.

3. wherein the at least one inflow opening (18) is arranged spaced apart from an edge area of the food carrier (4), 1.

4. wherein a total vertical height (H) of the hob system (1), with the food carrier (4), all of the heating units (5) and the fume extraction device (3), is a maximum of 250 mm, and 1.

5. wherein the hob system (1) is embodied as an assembly unit comprising the hob (2) and the fume extraction device (3), characterised in 1.6 that a total width (B) of the hob system (1) is a maximum of 600 mm and 1.

7. that the at least one fan (19) overlaps the at least one heating unit (5) and / or power electronics (50) of the heating unit (5) for supplying a heating element with electrical power in a plan view and in a side view and / or in a front view.

2. Hob system (1) according to Claim 1, characterised in that the total vertical height (H) of the hob system (1) is a maximum of 200 mm.

3. Hob system (1) according to one of the preceding claims, characterised in that a fan wheel (25) of the at least one fan (19) overlaps the power electronics (50) in the plan view and in the side view and / or in the front view.

4. Hob system (1) according to one of the preceding claims, characterised in that the maximum power output of the at least one heating unit (5) is in a range from 300 to 4000 watts.

5. Hob system (1) according to one of the preceding claims, characterised in that the fume extraction device (3) comprises an inflow grid (28) that can be arranged at the at least one inflow opening (18), wherein the inflow grid (28) comprises at least one guide element (34) for the directed extraction of the cooking fumes from an area above the at least one heating element.

6. Hob system (1) according to one of the preceding claims, characterised in that a geometric centroid (37) of the at least one inflow opening (18) is arranged spaced apart from a geometric centroid (38) of the food carrier (4) in a plan view.

7. Hob system (1) according to Claim 6, characterised in that the at least one inflow opening (18) is arranged spaced apart from a geometric centroid (38) of the food carrier (4) in the plan view in the width direction (39) and / or in the depth direction (40).

8. Hob system (1) according to one of the preceding claims, characterised by a plurality of the heating units (5), wherein in a plan view a smallest spacing (aH1) between a geometric centroid (38) of the food carrier (4) and a first of the heating units (5) is at least twice as large as a smallest spacing (aH2) between the geometric centroid (38) of the food carrier (4) and a second of the heating units (5).

9. Hob system (1) according to one of the preceding claims, characterised by a plurality of the heating units (5), wherein, in a plan view, all the smallest spacings (aEH1, aEH2, aEH3) between the at least one inflow opening (18) and the respective heating unit (5) differ by a maximum of 30%.

10. Hob system (1) according to one of the preceding claims, characterised in that a smallest spacing (aEH1, aEH2, aEH3) between the at least one inflow opening (18) and the at least one heating unit (5) is a maximum of 100 mm in a plan view.

11. Hob system (1) according to one of the preceding claims, characterised in that the at least one heating unit (5) overlaps a geometric centroid (38) of the food carrier (4) in a plan view.

12. Kitchen workstation comprising 12.

1. a kitchen base cabinet (42a) with a storage space (43a), which comprises a storage space width (BS) of a maximum of 600 mm, and 12.

2. a hob system (1) according to one of claims 1 to 11, wherein the heating units (5) and the fume extraction device (3) are arranged completely within the storage space (43a) in a plan view.

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