Fume-extraction device for installation below a hob or a kitchen worktop and also a fume-extraction system made up of the fume-extraction device and the hob or kitchen worktop

Abstract

A fume-extraction device (2, 3) for extracting vapour (A) by means of a fume-extraction unit (2) for installation below a hob (1) or below a kitchen worktop (1), wherein the fume-extraction unit (2) has: • an intake opening (21), which is designed to connect the fume-extraction unit (2) in a vapour-conducting manner along a vertical axis (Z) to a region above the hob (1) or the kitchen worktop (1); • at least one fan (25), which is designed to take in the vapor (A) from above the hob (1), or from above the kitchen worktop (1), through the intake opening (21); • and an intake chamber (22), which is designed to connect the intake opening (21) in a vapour-conducting manner to the fan (25), and comprising at least a first filter unit (3) having a filter-element mount (30) and a filter element (31), wherein the filter-element mount (30) is designed in some sections in the form of a collecting tray (30a-30d), wherein the intake opening (21) has an extent (C) which is oriented perpendicularly in relation to the vertical axis (Z), characterized in that the first filter unit (3) is designed so that, • in a first orientation, it can be inserted, through the intake opening (21), into the intake chamber (22) in an insertion direction (B) or can be removed, through the intake opening (21), from the intake chamber (22) in a removal direction, which is counter to the insertion direction (B) and, • in a second orientation, it can be arranged in the intake chamber (22), wherein the collecting tray (30a-30d) is designed to hold vapour components and / or liquids received in both orientations.

Description

[0001] Description

[0002] Extractor hood for installation below a hob or kitchen worktop, as well as an extractor hood system consisting of an extractor hood and a hob or kitchen worktop.

[0003] The invention relates to a ventilation device for extracting cooking fumes, comprising a ventilation unit for installation below a cooktop or below a kitchen worktop and with at least one first filter unit. The ventilation device according to the invention, together with a cooktop or a kitchen worktop, can also be referred to as a ventilation system. In any case, the ventilation device includes a first filter unit according to the invention.

[0004] Cooking typically produces fumes, which can contain not only water vapor but also fat. This is similar to frying, which can also generate fumes, particularly those containing fat and odors. These fumes can also be referred to as steam, kitchen exhaust, or cooking vapors.

[0005] In modern kitchens, it is therefore common practice to actively remove cooking fumes to keep the kitchen as free as possible from steam, grease, and odors. This can be achieved using extractor hoods, which are usually positioned above the cooktop to capture the naturally rising fumes. The fumes are actively drawn in by at least one fan to capture them as completely as possible. The extractor hood can then filter the fumes, which are subsequently released back into the kitchen as purified air. Alternatively, the fumes can also be vented directly from the kitchen to the outside.

[0006] It is also common practice nowadays to draw cooking fumes downwards into the cooktop using so-called integrated extractor hoods, which can be positioned within the cooktop itself, thus keeping them away from the surface. An integrated extractor hood, also called a range hood unit, can be positioned, for example, to the side between the cooking zones, in the center between the zones, or on one or both sides. In any case, it is standard practice to design the integrated extractor hood as a single assembly or mounting unit with the cooktop, which can be manufactured, delivered, and installed in a kitchen countertop as one unit. This can increase the degree of integration of the extractor hood function into the cooktop, thereby reducing manufacturing and installation costs as well as the required installation space.Alternatively, such extractor hoods can also be installed as separate kitchen appliances in a kitchen worktop next to a hob or similar appliance. This can increase design flexibility by allowing for the combination of various hobs and extractor hoods, as well as the flexible positioning of the extractor hood relative to the hob. However, this can increase the effort and cost of manufacturing both appliances, i.e., the hob and the extractor hood, as well as the required installation space in the kitchen unit.

[0007] These types of extractor hoods, whether separate or integrated, can also be called table extractors, downdraft extractors, or simply downdrafts. In any case, these extractor hoods generate an airflow to remove cooking fumes, which are then filtered and returned to the kitchen as purified air. They are essentially a type of range hood that is positioned primarily or entirely below the surface of the cooktop and / or the countertop. Compared to the previously described range hoods, these extractor hoods have the advantage that no unit needs to be installed above the cooktop, which can be visually distracting. They also save space in this area.

[0008] Cooker hoods, regardless of their specific design, typically always include a grease filter, which can be a disposable non-woven mat or a washable metal filter. In any case, the filter is always replaceable, as it becomes clogged with grease absorbed from or filtered out of the cooking fumes during use. A cooker hood also usually has a fan or blower to draw air containing the cooking fumes from the cooker and force it through the grease filter, thus removing as much grease as possible. To absorb or neutralize odors from the airflow, a replaceable carbon filter may be located between the grease filter and the fan.

[0009] DE 10 2020 125 817 A1 describes a cooker hood unit for installation below a cooktop, comprising at least one fan located in a ventilation chamber for extracting cooking fumes, and an intake chamber with an inlet opening for drawing in fumes from above the cooktop and a through-opening for conveying the fumes in the intake chamber to the fan chamber. A mounting section for magnetically attaching a filter unit is provided in the intake chamber in front of the through-opening. The intake chamber contains a grease filter, which is pointed with a downward-pointing tip. Grease particles or droplets can be deposited on the grease filter and, if necessary, drip from the tip of the grease filter into a tray that is fixed to the grease filter directly below its tip.

[0010] WO 2020 / 212260 A1 describes a filter device for a range hood with a suction opening through which air is drawn downwards. The filter device comprises a grease filter and a collection container for collecting liquids, with an opening to accommodate at least part of the grease filter's edge. The width of the interior of the collection container is greater than the thickness of the grease filter in the area where it is located within the container. The grease filter consists of at least two filter elements that are pivotally connected to the collection container.

[0011] The pivotability of the filter elements of WO 2020 / 212260 A1 relative to its collection container can increase the effective filter area in the state of use compared to the grease filter of DE 102020 125 817 A1 and thus improve the possibility of grease filtration.

[0012] EP 3 828469 A1 describes a cooktop for mounting on or in a worktop with one or more cooking zones, one or more devices for extracting cooking fumes downwards, a central recess and a grease filter insert that can be inserted into the recess, wherein the recess is connected to one or more devices for extracting cooking fumes, wherein the recess is arranged in a top view in an area around the geometric centroid of the cooktop, and wherein the grease filter insert has a collection tray in its base area for liquid that has entered through the central recess of the cooktop.

[0013] A key advantage of conventional grease filter inserts with an integrated collection tray is that the user can clean the tray separately from the unit. This is because the tray is more easily accessible when the grease filter insert is removed from the extractor hood or similar appliance. Furthermore, the user can empty any collected fumes or liquid from the tray.

[0014] A disadvantage of known grease filter inserts with integrated collection trays is their complex design, which can lead to comparatively high manufacturing costs. Furthermore, despite being removable from the intake chamber, such a grease filter insert can be relatively difficult or cumbersome to clean due to its complex design, and in particular, can only be cleaned by hand. The size and shape of a known grease filter insert can make cleaning in, for example, a dishwasher difficult or impossible. The invention therefore addresses the problem of improving the possibilities for the removable arrangement of filter elements or filter units in extractor hoods or their extraction units, which are designed for installation below a cooktop or kitchen worktop. This is particularly intended for filter units that have a collection tray or drip tray.In particular, the cleaning options for the filter element and / or the collection tray of the filter unit should be improved. Additionally or alternatively, the visibility of the extractor hood or extractor unit, specifically its inlet or suction opening for capturing fumes, should be minimized while simultaneously achieving the highest possible filtration efficiency. Additionally or alternatively, the filter element or filter unit should be removable without releasing any fume particles captured by the filter unit, and especially without allowing them to escape below the cooktop or kitchen worktop. In any case, this should be as simple, space-saving, cost-effective, and / or intuitive to use as possible. At the very least, an alternative to existing solutions should be provided.

[0015] According to the invention, this problem is solved by a fume extraction device, a fume extraction system, a fume extraction unit, and a first filter unit with the features of the independent claims. Advantageous embodiments and further developments of the invention are described in the dependent claims below.

[0016] The invention thus relates to a ventilation system for extracting cooking fumes, comprising a ventilation unit for installation below a cooktop or below a kitchen worktop. Such a ventilation system can also be referred to as a table ventilator, downdraft extractor, or downdraft extractor. Such a ventilation system, or its ventilation unit, can be installed individually or together with a cooktop as a single unit.

[0017] The extractor hood unit has an intake opening designed to connect the extractor hood unit along a vertical axis to an area above the hob or kitchen worktop in a vapor-conducting manner, at least one fan, preferably a radial fan designed to draw the vapor from above the hob or above the kitchen worktop through the intake opening, and an intake chamber designed to connect the intake opening to the fan in a vapor-conducting manner.

[0018] In this way, steam generated during a cooking process can be extracted below the cooktop or kitchen worktop by means of the extractor unit according to the invention, in order to keep the area above the extractor unit, cooktop, or kitchen worktop free of steam. This can also apply to other gaseous media that can be conveyed by the fan. Preferably using a radial fan, also called a radial ventilator, as the fan allows for the utilization of its corresponding properties and advantages, such as a compact design, high pressure build-up, and high efficiency, to name just a few.

[0019] The extractor fan also has at least one first filter unit, which is designed to be arranged in the intake chamber and through which the extracted fumes flow, and to filter the fumes, wherein the first filter unit has a filter element receptacle and a filter element, preferably a grease filter, wherein the filter element receptacle is designed section by section as a collection tray, and wherein the intake opening has an extension which is oriented perpendicular to the vertical axis.

[0020] The first filter unit, or rather its filter element, filters and cleans the cooking fumes and the drawn-in airflow to remove components such as grease and the like, as well as odors. A partially cleaned and filtered airflow can then be recirculated from the extractor hood at another point, specifically back into the kitchen, to retain the thermal energy of the airflow within the building. Alternatively, the filtered and cleaned airflow can also be released outside the building.

[0021] The extractor fan according to the invention is characterized in that the first filter unit, preferably its filter element holder, is designed

[0022] • inserted into the intake chamber in a first orientation through the intake opening in an insertion direction or removed from the intake chamber in a removal direction opposite to the insertion direction and

[0023] • to be arranged in a second orientation in the intake chamber, wherein the collection tray is designed to hold vapor components and / or liquids collected in both orientations.

[0024] The two orientations in which the first filter unit can be used are understood to mean that a person as a user of the inventive device

[0025] The extractor fan allows the first filter unit to rotate relative to the cooktop or the kitchen worktop, such that the first filter unit is in one orientation before rotation and in the other after rotation. The relationship, and thus the rotation, between the first filter unit and the cooktop or kitchen worktop is preferably considered in Cartesian spatial coordinates. The rotation preferably occurs about a horizontal axis, such as the longitudinal or transverse axis.

[0026] The present invention is based on the understanding that previously known filter units or their filter elements are inserted into known extractor hoods in a straight line, particularly along the vertical axis, from above the cooktop or kitchen worktop. This means that filtration using the known filter units or their filter elements can only occur precisely in the orientation of the filter units or their filter elements in which they are inserted into and removed from the extractor hood. This particularly limits the filtering effect and the effective filtration area of ​​the known filter units or their filter elements, since the filter units or filter elements must be able to be accommodated in their constant vertical orientation within the extractor hood.

[0027] According to the invention, the extractor hood unit and the corresponding first filter unit are designed such that the first filter unit is aligned in its first orientation when inserted into and removed from the intake opening of the extractor hood. Accordingly, the first filter unit can be relatively narrow, compact, or thin in its first orientation, particularly in the horizontal plane, in order to keep the intake opening as small as possible and thus visually unobtrusive, and to occupy as little surface area of ​​the cooktop or kitchen worktop as possible.

[0028] In its second orientation, however, the first filter unit can offer the largest possible effective surface area to filter or purify the fumes or similar substances flowing through it as effectively as possible. Because the user can rotate the first filter unit between the two orientations, it can be positioned accordingly within the intake chamber of the extractor hood. This is particularly relevant if the airflow within the intake chamber can be deflected at a near or near right angle, and the first filter unit can be positioned in the area of ​​this deflection.

[0029] Simultaneously, according to the invention, the collection tray of the first filter unit is designed such that vapor components and / or liquids that the collection tray has absorbed or collected during its use can be retained even during the rotation of the first filter unit between its two orientations, i.e., they cannot escape from the collection tray of the first filter unit when the first filter unit is rotated. This ensures that when the first filter unit is removed, the vapor components and / or liquids collected therein remain in its collection tray and can be removed from the intake chamber with the first filter unit in order to be disposed of or cleaned outside the extractor hood according to the invention.

[0030] This can be achieved, firstly, by selecting a suitable contour for the first filter unit as a whole. This contour should be chosen so that the extent of the first filter unit relative to the intake opening is correspondingly small in the first orientation, or smaller in the second orientation, in order to keep the intake opening as small as possible. Secondly, the extent of the first filter unit relative to the intake chamber should be correspondingly large in the second orientation to achieve the greatest possible filtration and cleaning effect. Simultaneously, a suitable geometry of the collection tray or the first filter unit can ensure that, despite the movement of the first filter unit during rotation, the vapor particles and / or liquids are reliably contained within the collection tray, i.e., they cannot escape from the tray or overflow its edges or outer contours.

[0031] This design allows for improved placement of the first filter unit and its collection tray within the extractor hood, positioned below a cooktop or kitchen worktop. This minimizes the visibility of the extractor hood and its intake opening while simultaneously maximizing filtration efficiency. Furthermore, the first filter element can be removed without releasing any collected fumes or other contaminants, and especially without allowing them to escape below the cooktop or worktop.

[0032] According to one aspect of the invention, the first orientation and the second orientation of the first filter unit are rotated relative to each other by at least 30°, preferably by 45°, from the horizontal.

[0033] This allows for a significant change in the cross-section of the first filter unit between the two orientations. In particular, this allows the first filter unit to be kept relatively small in the first orientation, facilitating insertion into and removal from the intake chamber. Simultaneously, the effective filter area of ​​the first filter unit, or its filter element, can be made relatively large to improve filtration efficiency. An angle of at least 30° from the horizontal may be sufficient for this purpose. With an angle of approximately 45°, especially when the vapors are deflected at a right angle in the intake chamber, both properties can be implemented particularly effectively.

[0034] According to another aspect of the invention, the intake chamber is designed to deflect the vapors at an angle, preferably perpendicularly, towards the vertical axis towards the fan.

[0035] This can enable a particularly compact design for the intake chamber and / or the extractor hood or extractor unit as a whole. In particular, the extension of the intake chamber and / or the extractor hood as a whole along the vertical axis can be kept particularly small in this way, which can promote an overall compact design. This can be achieved to a certain extent simply by deflecting the fumes in the intake chamber away from the vertical axis and thus at an angle to the vertical axis towards the fan. This can be achieved in particular by deflecting the fumes at a right angle into the horizontal plane, whereby, with appropriate orientation of the cooktop or kitchen worktop, the fumes are guided parallel to the cooktop or worktop.to the kitchen worktop on the way to the fan, which can enable or promote a particularly compact design of the extractor unit, especially along the vertical axis.

[0036] According to another aspect of the invention, the extraction direction or the insertion direction runs along the vertical axis.

[0037] This can make it easier for a person using the extractor hood or extractor unit and / or the first filter unit to insert and / or remove the first filter unit through the intake opening. It can also simplify the design of the extractor hood or extractor unit and / or the first filter unit, making it more compact. In any case, the intake opening of the extractor hood or extractor unit can preferably be oriented horizontally in the cooktop or kitchen worktop, so that the air passes through the cooktop or worktop perpendicular to the horizontal.

[0038] According to a further aspect of the invention, the extent of the intake opening corresponds to a first extent of the first filter unit, preferably its filter element receptacle, in its first orientation perpendicular to the vertical axis. In other words, the first filter unit, considered in its first orientation, is designed or dimensioned in its cross-section approximately as corresponding to the intake opening, wherein the first filter unit is designed or dimensioned sufficiently smaller to be moved through the intake opening, i.e., to fit through it. At the same time, the cross-section of the intake opening is preferably utilized as completely as possible by the first filter unit in its first orientation in order to make the first filter unit or its filter element as large or wide as possible and thus as effective as possible.or to keep the intake opening as small as possible, which can improve or reduce the visual appearance for the user as an observer.

[0039] Preferably, the cross-section of the intake chamber, preferably inclined at 45° to the vertical axis, is more than twice the size of the intake opening.

[0040] This allows the intake opening to be kept as small as possible and thus as visually unobtrusive as possible. At the same time, the surface area of ​​the first filter unit or its filter element can be made as large as possible, and therefore as effective as possible. The cross-section of the intake chamber can be oriented horizontally or at an angle to the horizontal, which can increase design flexibility. An angled arrangement of the intake chamber's cross-section relative to the horizontal, and thus also to the vertical axis, can facilitate a compact and, in particular, a flat design of the extractor hood or extractor unit along the vertical axis.

[0041] According to a further aspect of the invention, the first filter unit in its first orientation has a second extension along the vertical axis, wherein the second extension of the first filter unit is larger than, preferably at least twice as large as, the extension of the intake opening perpendicular to the vertical axis.

[0042] Thus, the first filter unit is designed and dimensioned to extend over a larger area than its cross-section, which must be moved through the intake opening to allow the first filter unit to be inserted into and / or removed from the intake chamber. The extension of the first filter unit along the insertion and removal direction, as its second extension, is correspondingly larger in its first orientation than the cross-section of the first filter unit that must be moved through the intake opening. This also improves the filtering efficiency of the first filter unit by making the first filter unit, or its filter element, correspondingly large, long, or...It can be highly developed to offer as much effective filter area as possible while simultaneously being compact in cross-section so that it can be moved through the smallest possible intake opening of the exhaust system. Alternatively, the second dimension of the first filter unit is larger than, preferably at least twice as large as, the first dimension of the first filter unit.

[0043] This can also increase or enlarge the size of the effective filter area, as previously described.

[0044] According to a further aspect of the invention, the filter element of the first filter unit has a filter body which is designed to filter the vapors, wherein the filter body of the filter element is designed and arranged in the filter element receptacle of the first filter unit in such a way as to be flowed through by the aspirated vapors, preferably along the first extension of the first filter unit.

[0045] This can represent a concrete implementation of filtering the steam using the first filter unit. It can also enable the design or construction of the filter element in such a way that the actual filter body, which filters the steam, can be designed separately and held in place, either independently or by means of a filter frame, as will be described in more detail below, within the filter element receptacle of the first filter unit, so that it can be handled by the user together with the first filter unit. This can prevent the user from having to handle the filter body alone, which can lead to damage to the filter body from contact with the user's hand and / or to soiling of the user's hand if the filter body has already collected contaminants from the steam.

[0046] According to a further aspect of the invention, the filter element of the first filter unit has a filter body which is designed to filter the vapors, wherein the filter body of the filter element is enclosed at least partially, preferably completely, by a filter frame of the first filter unit, wherein the filter element is arranged in the filter element receptacle of the first filter unit by means of its filter frame, preferably removable.

[0047] This can also improve the handling of the actual filter body, i.e., prevent damage to the filter body by the user and / or contamination of the user's hand. The filter frame can make the filter body manageable independently of the filter element holder of the first filter unit. The filter frame and filter body can be manufactured separately and then permanently mounted in the filter element holder of the first filter unit for handling by the user, which can facilitate easier handling and / or a more secure, less likely loss of the filter body or filter element.Alternatively, the filter element can also be removed from the filter element holder of the first filter unit in order to be handled separately from the filter element holder of the first filter unit by the user and in particular moved through the intake opening and cleaned, especially washed in a dishwasher, which can increase the flexibility of use and / or cleaning.

[0048] According to a further aspect of the invention, the filter element holder and the filter element of the first filter unit are designed such that the filter element and the filter element holder are separably connected to each other, preferably by a positive locking mechanism and / or magnetically, and preferably the filter element can be removed from the filter element holder.

[0049] This can generally allow for separate handling of the filter element holder and the filter element itself, as previously described.

[0050] Providing a preferably positive-locking and / or magnetic connection between the filter element and the filter element holder can be a particularly simple, cost-effective, reliably durable, yet easily separable and / or intuitively usable implementation option for the user. In particular, the filter element can be inserted or placed into the filter element holder, so that the user only needs to grasp the filter element holder of the first filter unit to handle the first filter unit as a whole, or the filter element together with its filter element holder, and especially to move it through the intake opening. This can also allow the user to remove the filter element from the filter element holder, which is particularly possible if the first filter unit and thus its filter element holder is located in the intake chamber, in order to move and insert the filter element on its own.to remove, which can expand the possible uses. In particular, the filter element holder can then remain in the intake chamber if the collection tray does not need to be emptied, which the user can visually recognize through the intake opening, especially along the vertical axis, after the filter element has been previously removed separately from the filter element holder.

[0051] According to a further aspect of the invention, the filter element holder and the filter element of the first filter unit are designed to be handled jointly or independently by a user, in particular to be inserted into and removed from the intake chamber.

[0052] This can represent a concrete implementation, the properties and advantages of which have already been described.

[0053] Preferably, the filter element holder is made of aluminum or stainless steel. Using aluminum can keep the weight of the filter element holder, and therefore of the first filter unit as a whole, low. Using stainless steel may be perceived by the user as higher quality and / or allow for a rust-free filter element holder.

[0054] According to a further aspect of the invention, the filter element holder and the filter element of the first filter unit are designed in the assembled state such that the filter element is arranged above the collection tray of the filter element holder in both orientations.

[0055] This can be achieved by coordinating the design of the filter element and the collection tray of the filter element housing, particularly taking into account the intake opening and / or the intake chamber, and the resulting possibilities for changing the orientation of the first filter unit. In any case, this prevents collected liquid and the like from escaping from the collection tray into the intake chamber and / or onto the top of the cooktop or kitchen worktop, which could otherwise lead to soiling there.

[0056] According to a further aspect of the invention, the intake chamber has a support surface, preferably horizontally oriented, and / or the intake chamber has a rear wall which preferably adjoins the support surface of the intake chamber along the vertical axis, and / or the intake chamber has a side wall extending along the vertical axis.

[0057] In this way, the relevant aspects of the invention can be implemented and used individually or in combination with each other, as already described above or below.

[0058] According to a further aspect of the invention, the intake chamber has a support surface, preferably horizontally oriented, wherein the first filter unit, preferably its filter element receptacle, has a bottom, wherein the bottom of the first filter unit, preferably its filter element receptacle, is designed to rest on the support surface of the intake chamber along the vertical axis in the second orientation of the first filter unit, preferably its filter element receptacle.

[0059] This allows for a defined and fixed arrangement of the first filter unit within the intake chamber. In particular, this allows for a defined alignment of the first filter unit relative to the intake opening on one side and / or the fan on the other. This applies accordingly to the filter element holder and / or the filter element itself. Providing a horizontal orientation for the support surface of the intake chamber, and thus also for the base of the first filter unit resting there, can enable the most compact or, along the vertical axis, flat design of the exhaust system.

[0060] According to a further aspect of the invention, the first filter unit, preferably its filter element receptacle, has a base, wherein the base of the first filter unit, preferably its filter element receptacle, is further configured to rest in the second orientation of the first filter unit, preferably its filter element receptacle, along the vertical axis on a horizontally extending substrate, preferably on the hob or on the kitchen worktop.

[0061] This allows the first filter unit to be placed or set down in the same, namely the second, orientation both within and outside the intake chamber and the intake opening on a horizontal surface, such as the cooktop or kitchen worktop, without any liquid or similar substances escaping from the collection tray. Only during movement between the intake chamber and outside or above the intake opening might it be necessary to move the first filter unit back into its first orientation, as previously described. Thus, after removing the first filter unit from the intake chamber or through the intake opening, and placing it with its base on a horizontal surface, such as the cooktop or kitchen worktop, the user can rotate it into its second orientation with any liquid or similar substances collected in the tray.This allows the user to remove the collected liquid or similar substance from the first filter unit without having to clean it immediately. Instead, they can set it aside beforehand or in between cleanings without any liquid or similar substance leaking out. This can simplify or make cleaning the first filter unit more flexible for the user.

[0062] According to a further aspect of the invention, the first filter unit, preferably its filter element receptacle, is designed such that the center of mass and / or a vertical projection of the center of mass of the first filter unit lies within the extent of the base of the first filter unit, preferably its filter element receptacle, if the first filter unit is in its second orientation.

[0063] This prevents the first filter unit from tipping over in its second orientation, which could otherwise cause liquid or similar substances collected in its drip tray to leak out and lead to contamination. This tip-over protection is therefore a design feature, especially if the drip tray contains liquid or similar substances.

[0064] According to a further aspect of the invention, the support surface of the intake chamber, preferably a geometric center of gravity of the support surface of the intake chamber, is arranged perpendicular to the vertical axis relative to the intake opening, preferably relative to a geometric center of gravity of the intake opening, preferably perpendicular to the vertical axis.

[0065] This allows for an offset of the intake chamber's support surface relative to the intake opening, so that the first filter unit or its collection tray, if it is arranged on the intake chamber's support surface (preferably by means of its base), can also be positioned accordingly offset from the intake opening. This offset allows the fumes to reach the filter element as directly as possible through the intake opening, and in particular directly along the vertical axis, which can improve the filtering effect of the fumes. This offset can also allow the intake chamber to be offset relative to the extractor fan, especially horizontally, which can increase the installation space for the fan and thus create room for other components of the extractor fan.Furthermore, this can simplify the process of rotating the first filter unit within the intake chamber between the two orientations, as the offset can facilitate this rotational movement or enable it in a compact design of the extractor hood unit.

[0066] According to another aspect of the invention, the contact surface of the intake chamber and the intake opening overlap section by section perpendicular to the vertical axis and / or in a vertical projection, or they do not overlap.

[0067] An overlap can make it easier for the user to access the intake chamber through the intake opening. It can also minimize the previously described offset.

[0068] Preventing the mounting surface of the intake chamber and the intake opening from overlapping can increase the design possibilities and, particularly in the area of ​​the fan, as previously described, create space or installation space for the fan itself and / or for other components of the extractor hood.

[0069] According to a further aspect of the invention, the support surface of the intake chamber is designed to run parallel to a planar extension of the hob or kitchen worktop and / or in the horizontal direction when the extractor hood unit is installed.

[0070] This can facilitate a stable position of the first filter unit, and especially its base, on the support surface of the intake chamber, as already mentioned. It can also enable a comparatively compact design of the extractor hood, particularly a design that is as flat as possible along the vertical axis.

[0071] According to a further aspect of the invention, the intake chamber has a rear wall which preferably adjoins the support surface of the intake chamber along the vertical axis, wherein the rear wall of the intake chamber runs obliquely, preferably at an angle of 45°, to the horizontal and / or to a support surface of the intake chamber as well as obliquely, preferably at an angle of 45°, to the vertical axis, wherein the first filter unit, preferably its filter element receptacle, has a rear wall which is designed, in the second orientation of the first filter unit, preferably its filter element receptacle, to abut the rear wall of the intake chamber obliquely to the horizontal and / or to the support surface of the intake chamber and obliquely to the vertical axis.

[0072] In this way, a fixed arrangement of the first filter unit in the intake chamber can also be made possible with regard to a rear wall of the intake chamber and a rear wall of the filter element receptacle of the first filter unit adjacent to it, as has already been described previously with regard to the base of the first filter unit on the support surface of the intake chamber.

[0073] According to a further aspect of the invention, the rear wall of the intake chamber, preferably a geometric center of gravity of the rear wall of the intake chamber, is arranged perpendicular to the vertical axis opposite the intake opening, preferably opposite a geometric center of gravity of the intake opening, preferably perpendicular to the vertical axis, preferably and opposite to the support surface of the intake chamber.

[0074] This can also promote a compact design of the extractor hood, as previously described in relation to the base of the first filter unit in relation to the surface of the intake chamber.

[0075] According to a further aspect of the invention, the intake chamber has a side wall extending along the vertical axis, wherein the first filter unit, preferably its filter element receptacle, has a side wall which is designed to extend along the vertical axis and parallel to the side wall of the intake chamber in the second orientation of the first filter unit, preferably its filter element receptacle, and preferably to be positioned in the intake chamber.

[0076] This can also promote a compact design of the extractor hood, as previously described, among other things, with regard to the base of the first filter unit in relation to the support surface of the intake chamber.

[0077] According to a further aspect of the invention, the side wall of the first filter unit, preferably its filter element receptacle, closes off along the vertical axis with an edge which forms a first upper boundary of the collection tray of the first filter unit along the vertical axis if the first filter unit is in its second orientation.

[0078] This can represent a concrete way of implementing the solution to collect and retain liquids and the like in the collection tray of the first filter unit or its filter element holder.

[0079] According to a further aspect of the invention, the rear wall of the first filter unit, preferably its filter element receptacle, forms a second upper boundary of the collection tray of the first filter unit along the vertical axis if the first filter unit is in its second orientation.

[0080] In this way, the back wall of the first filter unit or its filter element holder can be designed to be sufficiently high or long, when viewed in the first orientation of the first filter unit, so that when rotated or tilted into the second orientation along the vertical axis it remains sufficiently tall to securely hold liquid and the like collected or absorbed by the collection tray in both orientations of the first filter unit.

[0081] According to a further aspect of the invention, the edge of the side wall of the first filter unit, preferably its filter element receptacle, is designed to be lower along the vertical axis than the rear wall of the first filter unit, preferably its filter element receptacle, if the first filter unit is in its second orientation.

[0082] This may be sufficient to retain liquids and the like in both orientations of the first filter unit, as described previously, since this is achieved in both orientations by means of the rear wall of the first filter unit or its filter element holder. Therefore, the sides, especially the side opposite the rear wall, of the first filter unit or its filter element holder can be deeper or shallower. This deeper design can create space in the area of ​​this side wall, allowing the vapor to reach the filter element more easily and over a larger area, which can promote or improve the filtering effect of the filter element in the first filter unit. The deeper design of this area of ​​the first filter unit or its filter element holder can also make it easier for the user to position the filter element there.to be taken from there if the first filter unit is located outside the intake chamber, and especially if the first filter unit is located inside the intake chamber.

[0083] According to a further aspect of the invention, the intake chamber has a vent opening which is designed to connect the intake chamber to the fan in a way that allows steam to escape, with the vent opening preferably being located on the rear wall of the intake chamber along the vertical axis.

[0084] This can represent one possible concrete implementation to guide the vapors from the intake chamber to the fan, or to allow the fan to draw the vapors from the intake chamber and thus also through the intake opening.

[0085] According to a further aspect of the invention, the first filter unit, preferably its filter element receptacle, has a vent opening which is designed to connect the filter element to the fan in a vapor-carrying manner.

[0086] This can allow the vapor to flow through the first filter unit or through its filter element holder, in order to allow the vapor to flow through the intake opening, through the filter element and the exhaust opening of the first filter unit towards the fan, so that the filter element can filter the vapor, as previously described.

[0087] According to a further aspect of the invention, the exhaust opening of the first filter unit, preferably its filter element receptacle, is designed to run along the vertical axis in the second orientation of the first filter unit, preferably its filter element receptacle, or to be spaced perpendicular to the vertical axis from the exhaust opening of the intake chamber.

[0088] The course along the vertical axis can allow a correspondingly aligned flow of the vapors through the filter element and the exhaust opening of the first filter unit, especially parallel to the extension of the hob or the kitchen worktop, which can promote a compact design of the extractor unit.

[0089] The spacing perpendicular to the vertical axis to the exhaust opening of the intake chamber can allow an offset of the exhaust opening of the intake chamber relative to the exhaust opening of the first filter unit or its filter element holder, so that a transition can be created there, which can increase the design possibilities for guiding the vapors and / or for arranging a second filter unit.

[0090] According to a further aspect of the invention, the filter element receptacle of the first filter unit has a corner surface which is designed, in the second orientation of the first filter unit, preferably its filter element receptacle, to run obliquely to the horizontal and / or to a support surface of the intake chamber and obliquely to the vertical axis, wherein the filter element of the first filter unit, preferably a filter frame of the filter element of the first filter unit, rests on the corner surface of the filter element receptacle of the first filter unit.

[0091] The corner surface can serve as a defined receptacle for the filter element of the first filter unit or its filter frame, allowing it to be positioned and securely mounted there. This enables a defined arrangement of the filter element, which is held by the filter element receptacle. This can improve the positioning of the filter element within the steam flow, ensuring that the steam passes through the filter element as completely or exclusively as possible.

[0092] Additionally or alternatively, this can simplify the arrangement of the filter element in the intake chamber for the user.

[0093] According to another aspect of the invention, the corner surface connects a side wall and a bottom of the filter element receptacle of the first filter unit at an angle, preferably at 45°.

[0094] This can allow for a polygonal design of the filter element holder of the first filter unit, which can favor a more compact design of the filter element holder of the first filter unit.

[0095] According to a further aspect of the invention, the intake chamber has a corner surface which connects a side wall and a support surface of the intake chamber at an angle, preferably at 45°, wherein the corner surface of the intake chamber is designed to accommodate the filter element receptacle of the first filter unit, preferably in a planar fashion, if the first filter unit is in its second orientation.

[0096] This can favor a fixed or form-fitting arrangement of the filter element mounting of the first filter unit in the intake chamber, as previously described based on comparable features of the first filter unit.

[0097] According to a further aspect of the invention, the filter element receptacle of the first filter unit has a filter unit receptacle, preferably a filter frame receptacle, which is designed, in the second orientation of the first filter unit, preferably its filter element receptacle, to run obliquely to the horizontal and / or to a support surface of the intake chamber and obliquely to the vertical axis, wherein the filter element of the first filter unit, preferably a filter frame of the filter element of the first filter unit, rests on the filter unit receptacle, preferably on the filter frame receptacle, of the filter element receptacle of the first filter unit.

[0098] This can favor a compact design or construction, as previously described based on comparable features of the first filter unit.

[0099] According to a further aspect of the invention, the intake chamber has a filter unit receptacle, preferably recessed, which is designed to receive the first filter unit, preferably the filter element of the first filter unit, particularly preferably a filter frame of the filter element of the first filter unit, inclined to the horizontal and / or to a support surface of the intake chamber and inclined to the vertical axis, if the first filter unit is in its second orientation.

[0100] This can favor a compact design or construction, as previously described based on comparable features of the first filter unit.

[0101] According to another aspect of the invention, the filter unit intake of the intake chamber connects to a vent opening of the intake chamber along the vertical axis.

[0102] This can allow the vapors to pass through or flow at this point. It can also simplify the design and / or save installation space, especially if no other components are present between these elements, by creating a short or seamless transition between the filter unit housing and the exhaust opening of the intake chamber.

[0103] According to another aspect of the invention, the filter unit intake of the intake chamber is arranged between a vent opening of the intake chamber and the intake opening.

[0104] This can also simplify the design and keep it compact, especially if there are no other components between these elements.

[0105] According to a further aspect of the invention, the corner surface of the intake chamber and the filter unit receptacle of the intake chamber are located opposite each other, preferably at an angle to the horizontal and / or to the support surface of the intake chamber and at an angle to the vertical axis, in order to jointly accommodate the corner surface of the filter element receptacle of the first filter unit and the filter element of the first filter unit, preferably a filter frame of the filter element of the first filter unit.

[0106] This can enable a fixed or form-fitting hold of the first filter element in the intake chamber, preferably in a horizontal position, in a constructively simple and compact manner.

[0107] According to a further aspect of the invention, the extractor fan further comprises at least a second filter element, preferably an odor filter, particularly preferably a carbon filter, which is designed to be preferably removable, arranged between the intake chamber and the fan, preferably in a fan passage, and through which the extracted fumes flow and to filter the fumes.

[0108] This can expand or improve the possibilities for filtering or cleaning the steam. In particular, grease filtration can be carried out sequentially using the first filter unit and odor filtration using the second filter unit.

[0109] The invention also relates to a ventilation system with a ventilation device as described above and with a cooktop or with a kitchen worktop.

[0110] In this way, a ventilation device according to the invention can be combined with a cooktop or a kitchen worktop for use there, extracting and filtering the fumes and the like that can arise above the cooktop or above the kitchen worktop during cooking processes, and placing them below the cooktop or below the kitchen worktop. The properties and advantages of the ventilation device according to the invention can be utilized as described above.

[0111] According to one aspect of the invention, the extractor hood unit is installed in a user-oriented manner below the hob, with the hob and the extractor hood unit forming a single assembly unit.

[0112] An assembly unit is understood to be a device consisting of two initially separately manufactured subassemblies, smaller units, or smaller devices, which are then joined or connected to each other for handling, storage, transport, sale, and installation as a single unit. Thus, in this case, the cooktop and the extractor hood unit can initially be manufactured separately and assembled as self-contained units, potentially for use individually or in combination with other devices or units, before being joined or connected to form the assembly unit and used together. This can simplify both manufacturing and use / installation.

[0113] The invention further relates to a fume extraction unit for use in a fume extraction device as described above and in a fume extraction system as described above.

[0114] In this way, an extractor hood unit according to the invention can be created as described above in order to implement an extractor hood device or an extractor hood system according to the invention as described above and to be able to utilize its properties and advantages.

[0115] The invention further relates to a first filter unit, preferably a grease filter unit, for use in a range hood as described above and in a range hood system as described above.

[0116] In this way, a first filter unit according to the invention can be created as described above in order to implement an exhaust ventilation device or an exhaust ventilation system according to the invention as described above and to be able to utilize its properties and advantages.

[0117] An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows

[0118] Figure 1 shows a sectional view of a first filter unit according to the invention in the separated state of a filter element and a filter element holder;

[0119] Figure 2 shows Figure 1 in its composite state;

[0120] Figure 3 shows a sectional view of a cooker hood unit according to the invention below a hob;

[0121] Figure 4 shows a detailed view of an intake chamber of the extractor hood unit of the invention shown in Figure 3;

[0122] Figure 5 shows a sectional view of a cooker hood system according to the invention, with the cooker hood unit according to the invention, with the first filter unit according to the invention of Figures 1 and 2 placed on the hob, and a second filter unit, as well as with the hob of Figure 3;

[0123] Figure 6 shows the representation of Figure 5 when the first filter unit is inserted;

[0124] Figure 7 shows the representation of Figure 6 at the advanced stage of the first insertion.

[0125] Filter unit; and

[0126] Figure 8 shows the representation of Figures 5 to 7 with the first filter unit fully installed. The figures above are viewed in Cartesian coordinates. A longitudinal axis (not shown) extends, which can also be called depth or length. Perpendicular to the longitudinal axis extends a transverse axis Y, which can also be called width Y. Perpendicular to both the longitudinal axis and the transverse axis Y extends a vertical axis Z, which can also be called height Z and corresponds to the direction of gravity. The longitudinal axis and the transverse axis Y together form the horizontal, which can also be called the horizontal plane.

[0127] Figure 1 shows a sectional view of a first filter unit 3 according to the invention in the separated state of a filter element 31 and a filter element holder 30. Figure 2 shows the representation of Figure 1 in the assembled state.

[0128] An extractor hood system 1-4 according to the invention, or its extractor hood device 2-4 according to the invention, which are described in more detail below with reference to Figures 3 to 8, comprises, inter alia, the first filter unit 3 according to Figures 1 and 2. As already mentioned above, the first filter unit 3 comprises a filter element 31 and a filter element receptacle 30 for receiving the filter element 31. Since the

[0129] Since filter element 31 is designed as a grease filter 31, i.e. for filtering grease, the first filter unit 3 can also be referred to as grease filter unit 3.

[0130] The filter element 31 in question has a rectangular filter frame 31a made of stainless steel, aluminum, or plastic, which encloses a filter body 31b in the form of an expanded metal filter 31b. The filter element 31 is essentially two-dimensional, so that the filter body 31b extends over a flat surface in order to allow the flow of fumes A at approximately right angles during use, thereby filtering or cleaning the fumes A, also called fume stream A, from grease.

[0131] The filter frame 31a and the filter body 31b of the filter element 31 are connected and can only be separated by destructive means. The filter element 31 is dishwasher-safe, meaning it can be cleaned in a dishwasher, which simplifies cleaning the filter element 31 when it becomes soiled, i.e., with accumulated grease, for a single user. The filter element 31 of the first filter unit 3 can be handled by the user alone.

[0132] The aforementioned filter element holder 30 is designed to accommodate and hold the previously described filter element 31 during use. The filter element holder 30 can therefore also be referred to as the filter element holder 30. The filter element 31 and the filter element holder 30 together form the first filter unit 3. The filter element holder 30 is box-shaped with a trapezoidal rear surface (not shown), as will be described in more detail below. Perpendicular to the plane of the illustrations in Figures 1 and 2, the filter element holder 30 terminates with a closed end face (not shown), between which the filter element 31 is arranged along the longitudinal axis (not shown).

[0133] As shown in Figures 1 and 2, the filter element holder 30 has a base 30c to allow it to be placed on a surface, such as a surface (not labeled) of a cooktop 2 (see Figure 3), in the orientation shown in Figures 1 and 2, which represents a second orientation of the first filter unit 3. The center of mass of the first filter unit 3 as a whole, i.e., including the filter element, lies within the dimensions of the base 30c of the filter element holder 30, so that the first filter unit 3 cannot tip over in the representation shown in Figures 1 and 2. Accordingly, the base 30c can also be referred to as the standing surface 30c of the filter element holder 30.

[0134] In the illustrations of Figures 1 and 2, the filter element holder 30 extends to the left such that it is bent upwards at a 45° angle, thereby forming a comparatively short section in the form of a corner surface 30b. A lower edge (not labeled) of the rectangular filter frame 31a of the filter element 31 can abut or rest on this corner surface from an oblique angle above or from an oblique angle in order to be positioned within the filter element holder 30. The extent of the corner surface 30b corresponds to the corresponding extent of the rectangular filter frame 31a of the filter element 31, in order to keep the filter element holder 30 compact.

[0135] From the corner surface 30b, the filter element holder 30 extends upwards at a 45° angle as a side wall 30a, which, with respect to the flow direction of the vapor A through the filter element 31, can also be referred to as the front wall 30a. In the illustrations of Figures 1 and 2, the side wall 30a extends directly or in a straight line upwards along the vertical axis Z and terminates there, after a relatively short extension, with an edge 30aa in the form of a liquid edge 30aa, the function of which will be explained in more detail below.

[0136] In the illustrations of Figures 1 and 2, viewed from the right, a rear wall 30d, also bent upwards at 45°, adjoins the base 30c of the filter element holder 30. This rear wall runs perpendicular to the corner surface 30b of the filter element holder 30 and extends significantly further than the corner surface 30b. When the filter element 31 is inserted, the filter element 31 runs parallel to the rear wall 30d of the filter element holder 30. At the end of the rear wall 30d of the filter element holder 30, a vent opening 30e, bent upwards at another 45°, is formed as a grille 30e and can also be referred to as the fume passage 30e of the filter element holder 30. The vent opening 30e of the filter element holder 30 extends parallel to the side wall 30a of the filter element holder 30 and, in the illustrations of Figures 1 and 2, directly upwards in a straight line.The exhaust opening 30e of the filter element receptacle 30 terminates at its upper end with a filter unit receptacle 30f in the form of an edge, against which the filter element 31 can rest with a section (not labeled) of its filter frame 31a from an oblique angle above, if the filter element 31 with the opposite section (not labeled) of its filter frame 31a rests vertically on the corner surface 30b of the filter element receptacle 30 from the inside, as previously described, see for example Figure 2. The rear wall 30d and the exhaust opening 30e thus form, so to speak, the aforementioned rear side of the filter element receptacle 30.

[0137] The dimension from the outside (unlabeled) of the corner surface 30b of the filter element receptacle 30 to the outside (unlabeled) of the opposite filter frame 31a of the filter element 31 held in the filter element receptacle 30 can be considered the second extent E or the length E of the first filter unit 3. The dimension perpendicular to this, from the base 30c to the edge 30aa of the side wall 30a of the filter element receptacle 30, can be referred to as the first extent or the depth of the first filter unit 3 or its filter element receptacle 30.

[0138] Simultaneously, the filter element 31 is designed to be approximately as long along its longitudinal axis (not shown) as the distance between the end faces (not shown) in order to be fitted as flush as possible between the two end faces. This ensures that the rectangular filter frame 31a of the filter element 31 abuts the corner face 30b of the filter element receptacle 30 at the bottom, the end faces of the filter element receptacle 30 on both sides, and the edge of the filter unit receptacle 30f of the filter element receptacle 30 at the top, so that the vapor A must flow through the filter body 31b of the filter element 31 as completely as possible and can thus be filtered or cleaned of grease as completely as possible.

[0139] The previously described design of the filter element holder 30 allows the filter element 31 to be arranged loosely but securely within the filter element holder 30, so that the vapor A can flow through the filter element 31 and thus purify it. Furthermore, the filter element 31 and the filter element holder 30 can be handled together by one person, as will be described in more detail below. At the same time, the filter element 31 can be easily and quickly removed from the filter element holder 30 by the user for cleaning.Secondly, the two end faces together with the combination of side wall 30a, corner surface 30b, base 30c and rear wall 30d of the filter element holder 30 form a collection tray 30a-30d of the filter element holder 30, which, as shown in Figures 1 and 2, can not only collect and retain liquids and grease dripping from the filter element 31 as a second orientation, but, due to the extension of the side wall 30a of the filter element holder 30, is also able to retain these liquids and the like in the collection tray 30a-30d of the filter element holder 30 if the first filter unit 3 is tilted or stood upright by 45° to the left, as seen in Figures 1 and 2, which corresponds to a first orientation of the first filter unit 3.

[0140] Figure 3 shows a sectional view of a cooker hood unit 2 according to the invention below a hob 1. Figure 4 shows a detailed view of an intake chamber 21 of the cooker hood unit 2 according to the invention of Figure 3.

[0141] The extractor unit 2 according to the invention serves to extract the aforementioned fumes A, which can be generated during a cooking process, from above the cooktop 1 of Figure 3 or alternatively from above a kitchen worktop (not shown) along the vertical axis Z to below the cooktop 1 or the kitchen worktop, or to draw them in from there, in order to keep the area above the cooktop 1 or the kitchen worktop free of fumes A. Within the extractor unit 2, the extracted fumes A can then be cleaned of absorbed grease by means of the first filter unit 3, which is a grease filter 3 as described above. A second filter unit 4, an odor filter 4 in the form of a carbon filter 4, can additionally filter odors from the fumes A. The extractor unit 2 can therefore also be referred to as a table fan 2, a downdraft extractor 2, or a downdraft extractor 2.

[0142] The extractor unit 2, together with the two filter units 3 and 4, can be referred to as the extractor system 2-4 or the extractor device 2-4. Together with the cooktop 1 or the kitchen worktop, the extractor system 2-4 can also be referred to as the extractor system 1-4. The extractor unit 2 and the cooktop 1 can also be pre-assembled together and then referred to as the assembly unit 1-2.

[0143] The cooktop 1 is considered using the example of an induction cooktop 1. The cooktop 1 has a cooktop surface 10 in the form of a glass-ceramic plate 10 with an opening 11 in the form of a recess 11 approximately in the center horizontally. Around the opening 11 horizontally, or, in the illustration of Figure 1, laterally along the transverse axis Y to the left and right of it, a cooking zone 12 is provided on each side. Each of these zones can be inductively operated along the vertical axis Z from below the cooktop surface 10 by means of an induction coil 13 to inductively heat a cookware (not shown) placed on the cooking zone 12. The induction coils 13 are each held securely in place from below on the cooktop surface 10 by means of brackets 13a.

[0144] The extractor hood 2 has a frame 20, which can also be referred to as a housing 20 and serves to attach the extractor hood 2 to the cooktop 1, see Figure 3. Corresponding to the opening 11 of the cooktop 1 in terms of size, contour and positioning, the extractor hood 2 or its frame 20 has an intake opening 21, which can also be referred to as an inlet opening 21 and serves to allow the fumes A to flow into the extractor hood 2. The intake opening 21 has an extent C or a width C along the transverse axis Y.

[0145] The intake opening 21 is followed downwards along the vertical axis Z by an intake chamber 22, which will be examined in more detail below with reference to Figure 4 and can also be referred to as the intake duct 22. Adjoining the intake chamber 22 at a right angle to the transverse axis Y is a fan passage 23, in which the aforementioned second filter element 4 can be arranged (see Figures 5 to 8). The fan passage 23 leads into an intake chamber 24, below which a fan 25 in the form of a radial fan 25 is arranged. The fan 25 can also be referred to as a blower 25.

[0146] The previously mentioned intake chamber 22 has an inner contour that corresponds to the outer contour of the first filter unit 3 or its filter element receptacle 30. Thus, the intake chamber 22 has a horizontal support surface 22c on which the base 30c of the filter element receptacle 30 can be placed or positioned. In the illustration of Figure 4, looking to the left, the horizontal support surface 22c of the intake chamber 22 is adjoined by a corner surface 22b that is bent upwards by 45°, and subsequently by a side wall 22a that is also bent upwards by 45° and thus extends directly vertically upwards. The corner surface 30b and the side wall 30a of the filter element receptacle 30 can abut this.

[0147] Opposite the horizontal support surface 22c of the intake chamber 22, a rear wall 22d, also inclined upwards by 45°, adjoins the intake chamber 22d. The extent and orientation of this rear wall 30d correspond to the filter element receptacle 30. A guide wall 22g of the intake chamber 22 extends parallel to the rear wall 22d of the intake chamber 22. A cross-section F of the intake chamber 22 extends perpendicular to the rear wall 22d and the guide wall 22g.

[0148] Following the rear wall 22d is a 45° angled exhaust opening 22e of the intake chamber 22, which is also designed as a grille 22e and can itself be referred to as a vapor passage 22e. The filter element holder 30, with its rear wall 30d and its exhaust opening 30e, can abut the rear wall 22b and the exhaust opening 22e of the intake chamber 22. Here, the two exhaust openings 22e, 30e of the intake chamber 22 and the filter element holder 30 overlap, so that the vapor A can flow through the filter element 31 of the first filter unit 3 and then into the fan passage 23. A filter unit receptacle 22f of the intake chamber 22, formed as a recess above the exhaust opening 22e of the intake chamber 22 in the form of a filter frame receptacle 22f, serves in turn to receive the filter frame 31a of the filter element 31 of the first filter unit 3.

[0149] Figure 5 shows a sectional view of a range hood system 1-4 according to the invention, comprising the range hood device 2-4 according to the invention, the range hood unit 2 according to the invention, the first filter unit 3 according to the invention from Figures 1 and 2 placed on the hob 1, a second filter unit 4, and the hob 1 of Figure 3. Figure 6 shows the representation of Figure 5 during the insertion of the first filter unit 3. Figure 7 shows the representation of Figure 6 during the advanced insertion of the first filter unit 3. Figure 8 shows the representation of Figures 5 to 7 with the first filter unit 3 fully inserted.

[0150] If the extractor hood 2 according to the invention is installed and put into operation together with the cooktop 1 in a kitchen unit (not shown), the user can insert the second filter unit 4 into the fan passage 23, which can be done through the intake opening 21 and then through the intake chamber 22 "around the corner". Corresponding stops or the like (not shown) can be provided in the fan passage 23 precisely where the second filter unit 4 is to be positioned, in order to facilitate positioning for the user without having to see the fan passage 23. A slight constriction can also be provided in the fan passage 23 to hold the second filter unit 4 securely in position within the fan passage 23 with a certain amount of pressure.

[0151] The user can then position the first filter unit 3 for use. To do this, the user can place the clean first filter unit 3, with its base 30c in the second orientation of the first filter unit 3 (see Figures 1 and 2), on the top of the cooktop plate 10 of the cooktop 1 (see Figure 5). If the filter element 31 was previously removed from the filter element holder 30 of the first filter unit 3 and, for example, cleaned in a dishwasher, the user can also place the filter element holder 30 of the first filter unit 3 alone on the top of the cooktop plate 10 of the cooktop 1, as shown in Figure 5, and then insert the filter element 31 of the first filter element 3 with its base 30c.

[0152] First, place the filter frame 31a from the inside onto the corner surface 30b of the filter element receptacle 30 and then place it on the filter unit receptacle 30f with the underside (not marked) of the opposite section of the filter frame 31a.

[0153] The clean first filter unit 3 can now be grasped and held by the user with one hand between the fingers and thumb (not shown) at the top, from the front at the filter element 31 and from the rear at the exhaust opening 30e, in order to hold the filter element 31 in the filter element holder 30 and to be able to move or handle the first filter unit 3. The gripping of the first filter unit 3 thus takes place within the extent of the first extension D, i.e., in particular, the rear wall 30d of the filter element holder 30 remains unobstructed.

[0154] The user then lifts the first filter unit 3 from the top of the cooktop plate 10 of the cooktop 1 and rotates it 45° into its first orientation, so that the first filter unit 3 is aligned with its second dimension E along the vertical axis Z. This aligns the narrower first dimension D along the transverse axis Y, in which the intake opening 21 extends with its dimension C. In its first orientation, the first filter unit 3 fits through the intake opening 21, allowing the user to insert it from above along the vertical axis Z in an insertion direction B into the intake opening 21, as shown in Figures 6 and 7. By gripping the first filter unit 3 only in its upper area, the user can still grasp and hold it even when it is substantially inserted into the intake opening 21, as shown in Figure 7.

[0155] Once the first filter unit 3, as shown in Figure 7, is substantially or almost completely inserted into the intake opening 21, it reaches the intake chamber 22 of the extractor unit 2, which is wider along the transverse axis Y than the intake opening 21. The user can then rotate the first filter unit 3 back into its second orientation and then place it securely in the intake chamber 22 along the vertical axis Z. The user can release the first filter unit 3 at the last moment of the insertion movement. Due to the corresponding contours of the intake chamber 22 of the extractor unit 2 and the filter element receptacle 30 of the first filter unit 3, a defined positioning and orientation of the first filter unit 3 in the intake chamber 22 is achieved even without grasping and holding it until the insertion movement is complete, as shown in Figure 8.

[0156] Alternatively, the frame 20 of the extractor unit 2 can also have a recess (not shown) or similar feature along the transverse axis Y, centrally located along its longitudinal axis, which is large enough to accommodate the user's fingers or thumb, allowing the user to grasp and hold the first filter unit 3 until the insertion movement is complete. Removing the first filter unit 3 from the intake chamber 22 is carried out in reverse order. If present, the aforementioned recess can enable the user to grasp and hold the first filter unit 3 in order to reach and remove it. After removing the first filter unit 3 from the intake opening 21, the user can initially place it back on top of the cooktop plate 10 of the hob 1 and then grasp it with both hands for easier and safer transport to a sink or dishwasher.There, the filter element 31 can be removed from the filter element holder 30 and, in particular, the contents of the collection tray 30a-30d can be tipped into a drain.

[0157] If no such recess is present, or if the user wishes to remove only the filter element 31, the user can still reach the filter element 31 at its upper filter frame 31a with their fingers and tilt it towards the intake opening 21. The filter element 31 can then be grasped at its upper filter frame 31a with fingers and thumb and pulled upwards along the vertical axis Z out of the intake opening 21 of the extractor unit 2. If necessary, the filter element receptacle 30 at the upper edge (not labeled) of the filter unit receptacle 30f can also be reached with the fingers, tilted towards the intake opening 21, and then pulled out of the intake opening 21 on its own.

[0158] In any case, the intake opening 21 of the extractor unit 2 can otherwise, and especially when the extractor unit 2 is in use, be covered with a grid (not shown) or the like to prevent objects and food from falling through the intake opening 21. This can also improve the visual appearance for the user.

[0159] Reference numeral list (part of the description)

[0160] A vapor; vapor stream

[0161] B. Direction of insertion of the first filter unit 3

[0162] C. Extent or width of the intake opening 21

[0163] D first extent or depth of the first filter unit 3 or its

[0164] Filter element holder 30

[0165] E second extension or length of the first filter unit 3

[0166] F Cross-section of the intake chamber 22

[0167] Y transverse axis; width

[0168] Z vertical axis; height

[0169] 1-4 Extractor hood system

[0170] 1-2 assembly unit

[0171] 2-4 Extractor hood; extractor hood device

[0172] 1 cooking zone; induction cooking zone

[0173] 10. Cooktop; glass ceramic cooktop

[0174] 11 Opening; recess

[0175] 12 cooking stations

[0176] 13 induction coils

[0177] 13a Mounting brackets for the induction coils 13

[0178] 2. Extractor unit; table fan; downdraft extractor; downdraft

[0179] 20 frames; housings

[0180] 21 Intake opening; Inlet opening

[0181] 22 Intake chamber; intake duct

[0182] 22a Side wall of the intake chamber 22

[0183] 22b Corner surface of the intake chamber 22

[0184] 22c Intake chamber contact surface 22

[0185] 22d Rear wall of the intake chamber 22

[0186] 22e Extraction opening, vapor passage or grille of the intake chamber 22

[0187] 22f Filter unit mount or filter frame mount of the intake chamber 22

[0188] 22g Guide wall of the intake chamber 22 Fan passage Intake chamber Fan; Radial fan, blower First filter unit; Grease filter unit Filter element holder; Filter element holder a Side wall or front wall of the filter element holder 30 aa Edge or liquid edge of the side wall 30a of the filter element holder 30b Corner surface of the filter element holder 30 c Bottom or base of the filter element holder 30 d Rear wall of the filter element holder 30 e Exhaust opening, vapor passage or grille of the filter element holder 30f Filter unit holder or filter frame holder of the filter element holder

[0189] 30 a-30d Collection tray of the filter element holder 30 Filter element; grease filter a Filter frame of the filter element 31 b Filter body or expanded metal filter of the filter element 31 Second filter element; odor filter; carbon filter

Claims

32 Patent claims 1. Extraction device (2, 3) for extracting vapors (A) with an extraction unit (2) for installation below a cooktop (1) or below a kitchen worktop, wherein the extraction unit (2) comprises: • an intake opening (21) which is designed to connect the extractor unit (2) along a vertical axis (Z) to an area above the hob (1) or the kitchen worktop, • at least one fan (25), preferably a radial fan (25), which is designed to draw in the vapors (A) from above the hob (1) or above the kitchen worktop through the intake opening (21), and • an intake chamber (22) which is configured to connect the intake opening (21) to the fan (25) in a vapor-carrying manner, and which is arranged in the intake chamber (22) with at least one first filter unit (3) which is configured to be flowed through by the aspirated vapor (A) and to filter the vapor (A), wherein the first filter unit (3) has a filter element receptacle (30) and a filter element (31), preferably a grease filter (31), wherein the filter element receptacle (30) is configured section by section as a collection tray (30a-30d), wherein the intake opening (21) has an extension (C) which is oriented perpendicular to the vertical axis (Z), characterized in that the first filter unit (3), preferably its filter element receptacle (30), is configured • inserted into the intake chamber (22) in a first orientation through the intake opening (21) in an insertion direction (B) or removed from the intake chamber (22) in a removal direction opposite to the insertion direction (B) and • to be arranged in a second orientation in the intake chamber (22), wherein the collection tray (30a-30d) is designed to retain vapor components and / or liquids captured in both orientations. 33 2. Extraction device (2, 3) according to claim 1, wherein the first orientation and the second orientation of the first filter unit (3) are rotated relative to each other by at least 30°, preferably by 45°, from the horizontal.

3. Extraction device (2, 3) according to claim 1 or 2, wherein the intake chamber (22) is designed to deflect the vapor (A) at an angle, preferably perpendicularly, to the vertical axis (Z) towards the fan (25).

4. Extraction device (2, 3) according to one of the preceding claims, wherein the extraction direction or insertion direction (B) runs along the vertical axis (Z).

5. Extraction device (2, 3) according to one of the preceding claims, wherein the extent (C) of the intake opening (21) corresponds to a first extent (D) of the first filter unit (3), preferably its filter element receptacle (30), in its first orientation perpendicular to the vertical axis (Z), wherein preferably a cross-section (F) of the intake chamber (22), preferably inclined at 45° to the vertical axis (Z), is more than twice as large as the extent (C) of the intake opening (21).

6. Extraction device (2, 3) according to one of the preceding claims, wherein the first filter unit (3) in its first orientation has a second extension (E) along the vertical axis (Z), wherein the second extension (E) of the first filter unit (3) is larger than, preferably at least twice as large as, the extension (C) of the intake opening (21) perpendicular to the vertical axis (Z) and / or wherein the second extension (E) of the first filter unit (3) is larger than, preferably at least twice as large as, the first extension (D) of the first filter unit (3).

7. Extraction device (2, 3) according to one of the preceding claims, wherein the filter element (31) of the first filter unit (3) has a filter body (31b) which is designed to filter the vapor (A), wherein the filter body (31b) of the filter element (31) is designed and arranged in the filter element receptacle (30) of the first filter unit (3) in such a way as to be flowed through by the aspirated vapor (A), preferably along the first extension (D) of the first filter unit (3).

8. Extraction device (2, 3) according to one of the preceding claims, wherein the filter element (31) of the first filter unit (3) has a filter body (31b) which is designed to filter the vapor (A), wherein the filter body (31b) of the filter element (31) is enclosed at least partially, preferably completely, by a filter frame (31a) of the first filter unit (3), wherein the filter element (31) is arranged in the filter element receptacle (30) of the first filter unit (3) by means of its filter frame (31a), preferably removable.

9. Extraction device (2, 3) according to one of the preceding claims, wherein the filter element receptacle (30) and the filter element (31) of the first filter unit (3) are designed such that the filter element (31) and the filter element receptacle (30) are separably connected to each other, preferably by positive locking and / or magnetic means, and preferably the filter element (31) can be removed from the filter element receptacle (30).

10. Extraction device (2, 3) according to one of the preceding claims, wherein the filter element holder (30) and the filter element (31) of the first filter unit (3) are designed to be handled jointly or independently by a user, in particular to be inserted into and removed from the intake chamber (22).

11. Extraction device (2, 3) according to one of the preceding claims, wherein the filter element receptacle (30) and the filter element (31) of the first filter unit (3) are designed in the assembled state such that the filter element (31) is arranged above the collection tray (30a-30d) of the filter element receptacle (30) in both orientations.

12. Extraction device (2, 3) according to one of the preceding claims, wherein the intake chamber (22) has a support surface (22c), preferably horizontally oriented, and / or wherein the intake chamber (22) has a rear wall (22d) which preferably adjoins the support surface (22c) of the intake chamber (22) along the vertical axis (Z), and / or wherein the intake chamber (22) has a side wall (22a) extending along the vertical axis (Z).

13. Extraction device (2, 3) according to one of the preceding claims, wherein the intake chamber (22) has a support surface (22c), preferably horizontally oriented, wherein the first filter unit (3), preferably its filter element receptacle (30), has a base (30c), wherein the base (30c) of the first filter unit (3), preferably its filter element receptacle (30), is designed to rest on the support surface (22c) of the intake chamber (22) in the second orientation of the first filter unit (3), preferably its filter element receptacle (30), along the vertical axis (Z).

14. Extraction device (2, 3) according to one of the preceding claims, wherein the first filter unit (3), preferably its filter element receptacle (30), has a base (30c), wherein the base (30c) of the first filter unit (3), preferably its filter element receptacle (30), is further configured to rest in the second orientation of the first filter unit (3), preferably its filter element receptacle (30), along the vertical axis (Z) on a surface extending in the horizontal (X, Y), preferably on the hob (1) or on the kitchen worktop. 36 15. Extraction device (2, 3) according to claim 13 or 14, wherein the first filter unit (3), preferably its filter element receptacle (30), is designed such that the center of mass and / or a vertical projection of the center of mass of the first filter unit (3) lies within the extent of the base (30c) of the first filter unit (3), preferably its filter element receptacle (30), if the first filter unit (3) is in its second orientation.

16. Extraction device (2, 3) according to one of claims 13 to 15, wherein the support surface (22c) of the intake chamber (22), preferably a geometric center of gravity of the support surface (22c) of the intake chamber (22), is arranged perpendicular to the vertical axis (Z) relative to the intake opening (21), preferably relative to a geometric center of gravity of the intake opening (21), preferably perpendicular to the vertical axis (Z).

17. Extraction device (2, 3) according to one of claims 13 to 16, wherein the support surface (22c) of the intake chamber (22) and the intake opening (21) overlap or do not overlap sectionally perpendicular to the vertical axis (Z) and / or in a vertical projection.

18. Extraction device (2, 3) according to one of claims 13 to 17, wherein the support surface (22c) of the intake chamber (22) is designed to run parallel to a planar extension of the cooktop (1) or the kitchen worktop and / or in the horizontal direction when the extraction unit (2) is installed.

19. Extraction device (2, 3) according to one of the preceding claims, wherein the intake chamber (22) has a rear wall (22d) which preferably adjoins the support surface (22c) of the intake chamber (22) along the vertical axis (Z), wherein the rear wall (22d) of the intake chamber (22) extends obliquely, preferably at an angle of 45°, to the horizontal and / or to a support surface (22c) of the intake chamber (22) and obliquely, preferably at an angle of 45°, to the vertical axis (Z), wherein the first filter unit (3), preferably its filter element receptacle (30), has a rear wall (30d) which is configured in the second orientation of the first 37 The filter unit (3), preferably its filter element receptacle (30), is positioned at an angle to the horizontal and / or to the support surface (22c) of the intake chamber (22) and at an angle to the vertical axis (Z) on the rear wall (22d) of the intake chamber (22).

20. Extraction device (2, 3) according to claim 19, wherein the rear wall (22d) of the intake chamber (22), preferably a geometric center of gravity of the rear wall (22d) of the intake chamber (22), is arranged perpendicular to the vertical axis (Z) relative to the intake opening (21), preferably relative to a geometric center of gravity of the intake opening (21), preferably perpendicular to the vertical axis (Z), preferably and opposite to the support surface (22c) of the intake chamber (22).

21. Extraction device (2, 3) according to one of the preceding claims, wherein the intake chamber (22) has a side wall (22a) extending along the vertical axis (Z), wherein the first filter unit (3), preferably its filter element receptacle (30), has a side wall (30a) which is designed to extend along the vertical axis (Z) and parallel to the side wall (22a) of the intake chamber (22) in the second orientation of the first filter unit (3), preferably its filter element receptacle (30), preferably in the intake chamber (22) and to rest there.

22. Extraction device (2, 3) according to claim 21, wherein the side wall (30a) of the first filter unit (3), preferably its filter element receptacle (30), terminates along the vertical axis (Z) upwards with an edge (30aa) which forms a first upper boundary of the collection tray (30a 30d) of the first filter unit (3) along the vertical axis (Z) if the first filter unit (3) is in its second orientation.

23. Extraction device (2, 3) according to one of claims 19 or 20 and according to claim 22, wherein the rear wall (30d) of the first filter unit (3), preferably its filter element receptacle (30), forms a second upper boundary of the collection tray (30a-30d) of the first filter unit (3) along the vertical axis (Z) if the first filter unit (3) is in its second orientation.

24. Extraction device (2, 3) according to claims 22 and 23, 38 wherein the edge (30aa) of the side wall (30a) of the first filter unit (3), preferably its filter element receptacle (30), is formed lower along the vertical axis (Z) than the rear wall (30d) of the first filter unit (3), preferably its filter element receptacle (30), if the first filter unit (3) is in its second orientation.

25. Extraction device (2, 3) according to one of claims 19, 20 and 22 to 24, wherein the intake chamber (22) has an exhaust opening (22e) which is designed to connect the intake chamber (22) to the fan (25) in a vapor-carrying manner, wherein the exhaust opening (22e) preferably adjoins the rear wall (22d) of the intake chamber (22) along the vertical axis (Z).

26. Extraction device (2, 3) according to one of the preceding claims, wherein the first filter unit (3), preferably its filter element receptacle (30), has an extraction opening (30e) which is designed to connect the filter element (31) to the fan (25) in a vapor-carrying manner.

27. Extraction device (2, 3) according to claim 26, wherein the extraction opening (30e) of the first filter unit (3), preferably its filter element receptacle (30), is configured in the second orientation of the first filter unit (3), preferably its filter element receptacle (30), to extend along the vertical axis (Z) or to be spaced perpendicular to the vertical axis (Z) from the extraction opening (22e) of the intake chamber (22).

28. Extraction device (2, 3) according to one of the preceding claims, wherein the filter element receptacle (30) of the first filter unit (3) has a corner surface (30b) which is designed to extend in the second orientation of the first filter unit (3), preferably its filter element receptacle (30), obliquely to the horizontal and / or to a support surface (22c) of the intake chamber (22) and obliquely to the vertical axis (Z), wherein the filter element (31) of the first filter unit (3), preferably a filter frame (31a) of the filter element (31) of the first filter unit (3), rests on the corner surface (30b) of the filter element receptacle (30) of the first filter unit (3).

29. Extraction device (2, 3) according to claim 28, 39 wherein the corner surface (30b) connects a side wall (30a) and a bottom (30c) of the filter element receptacle (30) of the first filter unit (3) at an angle, preferably by 45°.

30. Extraction device (2, 3) according to claim 28 or 29, wherein the intake chamber (22) has a corner surface (22b) which connects a side wall (22a) and a support surface (22c) of the intake chamber (22) at an angle, preferably by 45°, wherein the corner surface (22b) of the intake chamber (22) is designed to receive the filter element receptacle (30) of the first filter unit (3), preferably in a planar fashion, if the first filter unit (3) is in its second orientation.

31. Extraction device (2, 3) according to one of the preceding claims, wherein the filter element receptacle (30) of the first filter unit (3) has a filter unit receptacle (30f), preferably a filter frame receptacle (30f), which is designed to extend in the second orientation of the first filter unit (3), preferably its filter element receptacle (30), obliquely to the horizontal and / or to a support surface (22c) of the intake chamber (22) and obliquely to the vertical axis (Z), wherein the filter element (31) of the first filter unit (3), preferably a filter frame (31a) of the filter element (31) of the first filter unit (3), rests on the filter unit receptacle (30f), preferably on the filter frame receptacle (30f), of the filter element receptacle (30) of the first filter unit (3).

32. Extraction device (2, 3) according to one of the preceding claims, wherein the intake chamber (22) has a, preferably recessed, filter unit receptacle (22f) which is designed to receive the first filter unit (3), preferably the filter element (31) of the first filter unit (3), particularly preferably a filter frame (31a) of the filter element (31) of the first filter unit (3), inclined to the horizontal and / or to a support surface (22c) of the intake chamber (22) and inclined to the vertical axis (Z), if the first filter unit (3) is in its second orientation.

33. Extraction device (2, 3) according to claim 32, wherein the filter unit receptacle (22f) of the intake chamber (22) is connected to an exhaust opening (22e) of the intake chamber (22) along the vertical axis (Z). 40 34. Extraction device (2, 3) according to claim 32 or 33, wherein the filter unit receptacle (22f) of the intake chamber (22) is arranged between an exhaust opening (22e) of the intake chamber (22) and the intake opening (21).

35. Extraction device (2, 3) according to claim 30 and according to one of claims 32 to 34, wherein the corner surface (22b) of the intake chamber (22) and the filter unit receptacle (22f) of the intake chamber (22) are opposite each other, preferably inclined to the horizontal and / or to the support surface (22c) of the intake chamber (22) and inclined to the vertical axis (Z), in order to jointly accommodate the corner surface (30b) of the filter element receptacle (30) of the first filter unit (3) and the filter element (31) of the first filter unit (3), preferably a filter frame (31a) of the filter element (31) of the first filter unit (3).

36. Extraction device (2-4) according to one of the preceding claims, further comprising at least one second filter element (4), preferably an odor filter (4), particularly preferably a carbon filter (4), which is designed to be preferably removable, arranged between the intake chamber (22) and the fan (25), preferably in a fan passage (23), and through which the drawn-in vapor (A) flows and to filter the vapor (A).

37. Extraction system (1-4) comprising an extraction device (2-4) according to one of the preceding claims and comprising a cooktop (1) or a kitchen worktop.

38. Extraction system (1-4) according to claim 37, wherein the extraction unit (2) is installed in the user orientation below the cooktop (1), wherein the cooktop (1) and the extraction unit (2) form an assembly unit (1-2).

39. Extraction unit (2) for use in an extraction device (2-4) according to one of claims 1 to 36 and in an extraction system (1-4) according to one of claims 37 and 38. 41 40. First filter unit (3), preferably grease filter unit (3), for use in a cooker hood (2, 3) according to one of claims 1 to 36 and in a cooker hood system (1-4) according to one of claims 37 and 38.

Images