Extractor hood, cooking system and method of operation

Abstract

Extractor hood (1) comprising at least one screen device (2) with at least one round intake section (3) and at least one control device (15), characterized in that the intake section (3) comprises at least two intake zones (4, 5, 6), wherein each intake zone (4, 5, 6) is assigned at least one separate fan device (7, 8, 9) and wherein the fan devices (7, 8, 9) can be controlled separately by means of the control device (15).

Description

[0001] The present invention relates to an extractor hood comprising at least one screen device with at least one circular intake section and at least one control device. Furthermore, the present invention relates to a cooking system comprising at least one such extractor hood, which is arranged at least partially above at least one cooking surface device. Furthermore, the present invention relates to a method for operating such a cooking system.

[0002] Extractor hoods are often installed above cooktops in kitchens to extract the fumes rising from cooking and remove grease, in particular. The cleaned air is then either exhausted from the kitchen or recirculated back into the kitchen.

[0003] Users often value not only the effective functionality of their extractor hood, but also its attractive design. In this regard, extractor hoods with a round or rounded vapor deflector or hood body are also desirable.

[0004] The disadvantage of round hoods, however, is that they often have to be very large to achieve sufficient extraction, as they extend over the entire area of ​​a square cooktop located below. This usually results in a reduction in headroom for a user.

[0005] Another disadvantage of conventional extractor hoods is that the intake power is not uniform across the filter surface. A fan for extracting vapors is usually located centrally above the grease filter, with the intake power at the filter surface decreasing progressively from the fan to the edge of the filter surface. Thus, especially with large hoods, a large portion of the vapor is drawn in through a central area of ​​the filter surface, which means the filter surface is not used optimally.

[0006] Furthermore, the extractor hood is not always used effectively, as often only one or a few cooking zones of a cooktop are used. This results in fumes being drawn in across the entire filter surface, even though this is unnecessary. To prevent this, certain intake areas are sometimes covered to prevent fumes from being drawn in. However, this is cumbersome and usually results in a lot of noise.

[0007] DE 10 2005 055 029 A1 describes an extractor hood with an inclination-adjustable hood body, which has a boom-like support device with a hood support, a suspension device extending from the boom arm and connected to the hood body, a stationary ring support attached to the boom arm and a hollow body pivotable in the ring support.

[0008] FR 2 424 079 A1 describes an extractor hood comprising a substantially horizontal intake duct, filtering means arranged on a lateral surface of the duct, means for generating a suction in this duct, means for controlling this suction, means for evacuating the filtered air, all flat parts of the duct being inclined relative to the horizontal.

[0009] DE 10 2005 013 806 A1 describes an extractor hood comprising a housing with a fan arranged therein, a suction surface arranged below the housing and a flow guide element, wherein the flow guide element is rotatably mounted in the suction surface about an axis of rotation which is oriented perpendicular to the plane of the suction surface.

[0010] DE 10 2014 115 286 A1 describes an extractor device comprising a housing with at least one intake opening and a suction device accommodated in the housing for generating an intake flow, as well as means for influencing the flow direction of the intake flow. The means for influencing the flow direction of the intake flow are formed by a plurality of guide grooves that extend along the outer surface sections of the housing adjacent to the intake opening in the direction of the intake opening.

[0011] EP 1 227 283 A1 describes an extraction device in which air is supplied as an air curtain flow through the air outlet, while the air surrounded by the air curtain flow is sucked in and extracted through intake openings. A space in the device is divided by a partition plate into two chambers, an upper and a lower one: a first supply air space on the upper side, into which air is introduced from the supply air duct, and a second supply air space that widens towards the air outlet. The first and second supply air spaces are connected by an annular flow compensation duct with a small duct diameter, which extends vertically in the outer circumference of the intake duct. This standardizes the volume flow distribution of the supply air flow from the air outlet and creates a stabilized air curtain flow.

[0012] It is therefore the object of the present invention to provide an extractor hood with a round vapor guide screen, in which a particularly homogeneous and / or effective suction of rising vapors can be achieved.

[0013] This object is achieved by an extractor hood having the features of claim 1, by a cooking system having the features of claim 8, and by a method for operating a cooking system having the features of claim 10. Preferred developments of the invention are the subject of the subclaims. Further advantages and features of the invention will become apparent from the exemplary embodiments.

[0014] The extractor hood according to the invention comprises at least one screen device with at least one substantially circular intake section and at least one control device. The intake section comprises at least two intake zones, each intake zone being assigned at least one separate fan device, and the fan devices being separately controllable by the control device.

[0015] The intake section preferably comprises at least three intake zones and particularly preferably exactly three intake zones, wherein here too each intake zone is assigned at least one separate fan device which can be controlled separately by means of the control device.

[0016] In general, an optimal compromise should preferably be found between the necessary number of fan devices for particularly good spatial extraction and as few fans as possible for low manufacturing costs or for less construction effort.

[0017] The shielding device comprises, in particular, at least one vapor shield or is designed as a vapor shield. Furthermore, the shielding device preferably provides at least part of the hood body of the extractor hood.

[0018] According to the invention, the suction section is the section of the extractor hood or the screen device through which rising vapors are sucked into the screen device or the extractor hood.

[0019] According to the invention, the intake section is designed to be substantially round, and it is preferred that the shielding device also has a substantially round design, which is preferably adapted to the shape and size of the intake section. Substantially round, both for the intake section and for the shielding device, means that the intake section and / or the shielding device is rounded, oval, circular, or substantially angular with rounded and preferably strongly rounded corners.

[0020] According to the invention, the individual fan devices can be controlled separately by the control device. This means, in particular, that the fan devices can preferably be operated individually or together. Furthermore, it is preferred that the fan speeds for the individual fan devices can be adjusted independently of one another.

[0021] The extractor hood according to the invention offers many advantages. A significant advantage is that the inventive design of the extractor hood with multiple intake zones and multiple fan units shifts the intake from a central area to an area closer to the edge of the hood. Thus, by providing multiple intake zones and multiple fan units, particularly advantageous and homogeneous extraction is achieved.

[0022] Segmenting the intake section into at least two and preferably three intake zones results in optimized utilization of the filter area. This results from the entire intake section being divided into several intake zones, each of which is assigned its own fan unit, which can then be optimally positioned and operated within the corresponding intake zone.

[0023] Conventional circular extractor hoods typically used a single fan, positioned approximately centrally above the intake section, which sucked the rising vapors into the extractor hood. This typically resulted in a large portion of the rising vapors being drawn into the extractor hood via a central area of ​​the intake section or filter surface, since the suction force directly below the fan is particularly strong. The filter surface at the edge of the extraction section was then subjected to significantly less vapor flow.

[0024] The extractor hood according to the invention features several smaller intake zones, each with its own fan unit. Depending on the design, this allows for optimal use of the entire filter area of ​​each intake zone.

[0025] Because the fan units of the individual intake zones can be controlled separately from the control unit, fume extraction is more effective and energy-saving. On the one hand, it is possible to activate only the corresponding fan unit above a cooking zone that is currently in use. This reduces the extractor hood's energy consumption, as the hood does not have to operate at an unnecessarily high power.

[0026] Furthermore, it is possible to draw the vapors into the extractor hood more effectively and in a more directed manner. This results from the vapor being drawn in different directions depending on how many fans are currently operating. Furthermore, by sequentially starting and / or operating the fans, a specific direction or preferred direction of the vapor can be specified, which can even cause the rising vapor to rotate.

[0027] When an airflow is set into a rotating motion, vapors moving radially to the axis of rotation are deflected by the Coriolis force acting on them. Furthermore, a negative pressure can develop in the center of the rotating air mass, which attracts the resulting vapors. Both effects advantageously enable improved performance of the extractor hood, particularly in that significantly fewer vapors flow horizontally outward from the cooktop and thus escape the capture of the extractor hood.

[0028] Overall, an extractor hood is provided which enables particularly homogeneous capture of rising vapors, as the intake section is divided into several intake zones, each of which is assigned its own separately controllable fan device.

[0029] In addition, the extractor hood according to the invention offers a user more headroom in front of a cooktop located below the extractor hood. This results from the fact that the improved extraction of vapors allows for a smaller size of the hood body or the screen assembly. For example, the round screen assembly does not have to be so large that even the corner sections of a substantially rectangular cooktop are covered by the screen assembly. Satisfactory extraction of vapors is achieved through targeted control of the fan devices, which allows the vapor flow to be directed or channeled.

[0030] Furthermore, the segmented intake area makes it possible to create mounting sections for specific technical components between the intake zones. For example, a lighting device can be mounted on such a mounting section. This allows for particularly advantageous illumination of the area beneath the hood. This can, for example, provide effective workplace lighting.

[0031] Preferably, the intended total intake power is distributed among the individual fan devices or intake zones. The total intake power is preferably distributed evenly among the fan devices. In other preferred embodiments, however, different fan powers can also be provided for individual fan devices. This can depend, for example, on the size of the cooking zones on a hob provided below the extractor hood. In general, it is preferred that the total intake power is, or can be, lower than in extractor hoods with only a single central fan.

[0032] Particularly preferably, the intake zones are designed essentially the same. In this case, “designed identically” is to be understood in particular to mean that the same technical devices or components are provided or arranged at the intake zones. For example, depending on the design, the same sensors, filters, filter holders, fan devices and other technical components can be designed the same at all intake zones. In addition, the intake zones are preferably designed to be essentially the same size and have essentially the same shape. In this case, for example, with a circular or approximately round design of the shielding device, it is provided that essentially similar intake zones are provided, so that the intake section is divided into essentially equal-sized sections in the shape of a “pie slice”.This has the advantage that a large number of identical parts can be used in the production of the extractor hood, which, among other things, simplifies assembly.

[0033] Preferably, the fan devices of the intake zones are distributed over a pitch circle diameter of the substantially circular intake section. Particularly with three intake zones, it is preferred that the fan devices are each offset approximately 120° from one another on the pitch circle diameter. Generally, the fan devices are arranged substantially uniformly on the pitch circle diameter. According to the present invention, a pitch circle diameter is understood to be an imaginary circle around the center of the shield device with a smaller diameter than the diameter of the shield device.

[0034] In expedient embodiments, at least one filter device is assigned to each intake zone. Providing separate filter devices for each intake zone makes it possible for the entire intake area or filter area to be provided by several smaller filter devices, allowing a user to more easily remove the individual filter devices from the extractor hood and, due to their smaller dimensions, to clean them more easily, for example, in a dishwasher.

[0035] Preferably, the intake section or the filter devices are then covered in a visually appealing manner by at least one decorative device. In expedient embodiments, such a decorative device is designed as a decorative panel. Preferably, each intake zone or each filter device is assigned its own decorative device. Thus, the segmented structure of the intake section is maintained despite one or more decorative devices.

[0036] Preferably, at least one intake zone and / or at least one fan device is provided at an incline on the intake section. In this case, it is particularly preferred that at least one intake zone and / or at least one fan device has an inclination, so that in particular the intake direction of the fan is not aligned exactly vertically. In this case, an inclination in the radial and / or translational direction is particularly preferred, wherein each fan device is preferably inclined in the same way with respect to the pitch circle diameter. In particular, in such a configuration, the intake directions of the individual fan devices are not aligned parallel to one another. In such configurations with inclined intake zones orAn inclined fan unit makes it particularly easy to set rising vapors into a rotating motion, allowing vapors rising from a hob to be collected particularly effectively and drawn into the extractor hood. In particular, such a rotating motion prevents rising vapors from rising past the screen unit and thus from being captured by it and drawn into the extractor hood.

[0037] Particularly preferably, at least one intake zone and / or at least one fan device is assigned at least one alignment device in order to change the alignment of the intake zone and / or the fan device and / or the fan device in the intake zone. This makes it possible to adjust the inclination of the intake zones or the fan devices depending on the installation situation and / or requirements, so that the vapor can be optimally captured. The intake zones and / or the fan devices can be aligned individually or jointly. In particular, a synchronous alignment of the intake zones or the fan devices can also be achieved, wherein here the alignment relative to the axes of rotation of the individual fan devices is preferably the same but different relative to one another.

[0038] According to one embodiment, the at least one alignment device comprises a motor drive and is operatively connected to the control device of the extractor hood. This allows the alignment of the intake zone and / or the fan device and / or the fan device in the intake zone to be influenced and / or changed during operation of the extractor hood depending on the local development of vapors.

[0039] Preferably, at least one communication module is provided in operative connection with the control device. Such a communication module provides, in particular, an interface via which the extractor hood or the control device of the extractor hood can be networked with other household appliances. Information can then be received from other household appliances, or information can be sent from the extractor hood to other appliances. In particular, a hob device arranged below the extractor hood can be networked with the extractor hood via the communication module.

[0040] The cooking system according to the invention comprises at least one cooking hob device with at least one cooking zone and at least one extractor hood arranged at least partially above the cooking hob device, as described above.

[0041] The cooking system according to the invention also offers the same advantages as previously described for the extractor hood according to the invention. The special design of the intake section with multiple intake zones and multiple fan units enables particularly homogeneous vapor intake across the entire area of ​​the cooktop. This is possible despite the round shape of the hood unit, as the fan units can be individually controlled, thus enabling, in particular, directed vapor intake.

[0042] The diameter of the screen device and / or the suction section is preferably smaller, the same size, or not significantly larger than at least one dimension of the hob device. This enables particularly good headroom for a user, since the extractor hood does not protrude, or does not protrude significantly, beyond the dimensions of the hob device despite the round design of the screen device and / or the suction section. It is particularly preferred that the diameter of the screen device and / or the suction section is smaller, the same size, or not significantly larger than the smallest dimension of the hob device. According to the invention, the dimension of the hob device is to be understood as the dimension of the hob device during normal use in a plane parallel to the horizontal or to the worktop in which the hob device is arranged.

[0043] The method according to the invention is suitable for operating a cooking system as described above. The individual fan devices of the individual intake zones are switched on or off as needed to establish a preferred direction for the vapors rising from the cooking surface.

[0044] The individual fan devices are controlled automatically so that optimal extraction of fumes is guaranteed, regardless of the user.

[0045] A preferred direction means in particular that the vapor is directed in a certain direction and is preferably set in rotation.

[0046] The method according to the invention also offers the advantages already described above.

[0047] Preferably, only one of the fan units is operated as needed. This can reduce the energy consumption of the extractor hood, depending on the design. For example, if only one cooking zone of the cooktop unit is in use, only the fan unit closest to that cooking zone is switched on.

[0048] In practical developments, several fan units are used simultaneously. Depending on the load on the cooktop unit or how many cooking zones are in use, different fan units can be activated or deactivated depending on the design of the extractor hood.

[0049] Preferably, the fan units are operated sequentially to create a rotating motion for the vapors rising from the cooktop. By starting the fans sequentially, the vapors can be directed in a preferred direction and / or rotated, enabling particularly effective vapor extraction.

[0050] Preferably, the fan units are operated sequentially, particularly to control the preferred direction of the vapors rising from the cooktop unit. The individual fan units can be configured and / or modified as needed to direct the vapors as effectively as possible toward the circular intake section or the circular screen unit. This allows for optimal vapor extraction despite the circular design of the screen unit or the circular intake section.

[0051] Particularly preferably, the hob device and the extractor hood each comprise a communication module by means of which the hob device and the extractor hood are networked. The control device can then take into account the information transmitted by the hob device when automatically controlling the fan devices. This makes it possible for the fan device to be controlled particularly effectively by networking the extractor hood with the hob device. For example, the hob device can transmit information about the utilization of the individual cooking zones. For example, it can preferably be transmitted for each cooking zone whether it is in operation and at what power. Using this information, the individual fan devices can then be optimally controlled individually.

[0052] Further advantages and features of the present invention will become apparent from the embodiments which are explained below with reference to the accompanying figures.

[0053] The figures show: Fig. 1 a purely schematic representation of a cooking system according to the invention in a front view; Fig. 2 a purely schematic representation of a screen device of an extractor hood according to the invention in a view from below onto the suction section; Fig. 3 a purely schematic representation of a cooking system according to the invention in a view from above; Fig. 4 a purely schematic representation of a cooking system according to the invention in a perspective view; Fig. 5 shows a further purely schematic representation of a cooking system according to the invention in a perspective view; Fig. 6 a next purely schematic representation of a cooking system according to the invention in a perspective view; and Fig. 7 a purely schematic representation of a cooking system according to the invention in three perspective views.

[0054] In Fig. Figure 1 shows an embodiment of a cooking system 100 according to the invention in a purely schematic frontal view. The cooking system 100 comprises a cooktop device 200 with several cooking zones 201 and an extractor hood 1 arranged above it.

[0055] The extractor hood 1 comprises a screen device 2 and a chimney device through which the vapors sucked in via the screen device 2 are discharged.

[0056] The screen device 2 is designed as a vapor screen 19, on or through which the vapors rising from the cooking surface device 200 are collected and sucked into the extractor hood 1 via a suction section 3.

[0057] In the cooking system 100 shown, both the extractor hood 1 and the hob device 200 each comprise a communication module 16, 204, via which the two household appliances are networked. The communication module 16 of the extractor hood 1 is operatively connected to a control device 15, which in turn is operatively connected to the Fig. 1 not shown in detail fan devices 7, 8, 9 of the extractor hood 1.

[0058] Such a configuration makes it possible for information about the operating state of the hob device 200 or about the use and power settings of the individual cooking zones 201 to be transmitted to the extractor hood 1. Thus, the control device 15 can take the provided information into account when controlling individual fan devices 7, 8, 9.

[0059] In Fig. Figure 2 is a purely schematic view of the shade device 2 of an extractor hood 1 according to the invention, viewed from below. It can be seen that the shade device is round in the illustrated embodiment, with a suction section 3, also round, formed on the underside of the shade device 2.

[0060] According to the invention, the intake section 3 of an extractor hood 1 according to the invention is segmented. For this purpose, the intake section is divided into at least two intake zones 4, 5, 6, with each intake zone 4, 5, 6 being assigned at least one separate fan device 7, 8, 9.

[0061] In the Fig. The embodiment shown in Figure 3 depicts a particularly preferred configuration in which three intake zones 4, 5, 6 are provided, each of which is assigned a separate fan device 7, 8, 9. In the illustrated embodiment, the individual fan devices 7, 8, 9 can be controlled individually, i.e., independently of one another, by the control device 15 of the extractor hood 1.

[0062] In the exemplary embodiment shown here, the three intake zones 4, 5, 6 are essentially identically constructed and designed. The intake zones 4, 5, 6 have essentially the same geometry and size. In the embodiment shown, the three intake zones 4, 5, 6 are arranged on the round intake section 3 or on the round shield device 2 in such a way that they approximately have the contour of a slice of cake. Furthermore, the technical components used in all three intake zones 4, 5, 6 are designed identically.

[0063] By segmenting the intake section 3, mounting sections 12 for various technical components can also be provided between the individual intake zones 4, 5, 6. In the illustrated embodiment, lighting devices 13 are provided on the mounting sections 12, providing workplace lighting. Since the lighting devices 13 can be directly assigned to the intake section 3 due to the segmented design of the intake section 3 and are thus arranged directly above the cooktop device 200, a particularly advantageous and direct illumination downwards onto the cooktop device 200 can be achieved.

[0064] Each of the individual intake zones 4, 5, 6 is assigned its own fan device 7, 8, 9, with the fan devices 7, 8, 9 being arranged on a pitch circle diameter of the round shield device 2 or the round intake section 3. According to the invention, a pitch circle diameter is understood to be an imaginary circle around the center point 20 of the shield device 2 or the intake section 3, which has a smaller diameter than the diameter of the shield device 2 or the intake section 3.

[0065] In the embodiment shown, the lighting devices 13 are also arranged on the individual mounting sections 12 on the pitch circle diameter.

[0066] In general, such a segmented intake section 3 with multiple intake zones 4, 5, 6 and multiple fan devices 7, 8, 9 offers significant advantages. One significant advantage is that, in contrast to the otherwise usual use of only one centrally arranged fan, a more homogeneous intake of rising vapors can be achieved.

[0067] With only one centrally positioned fan, the intake power decreases progressively from the fan to the edge of the extractor hood. As a result, the intake power is higher in a central area of ​​the extractor hood or vapor screen than at the edge, so that a large portion of the vapor is also sucked in through a central section of the filter surface. As a result, the edge area is only used to a limited extent as an active filter surface.

[0068] The special design of the screen device 2 of the extractor hood 1 according to the invention provides several decentralized suction zones 4, 5, 6, whereby a larger active filter area is effectively used despite the same overall size of the filter area.

[0069] Furthermore, the special design of the intake section 3 makes it possible for the extractor hood 1 or the screen device 2 to be designed without being unnecessarily large. Since vapors are effectively sucked in even at the edge of the screen device 2 or the intake section 3, it is even possible for the screen device 2 to not completely protrude above a cooktop device 200 arranged below the extractor hood 1.

[0070] Furthermore, the individual fan devices 7, 8, 9 can be controlled individually. This makes it possible, among other things, by sequentially starting and / or sequentially operating individual or all fan devices 7, 8, 9, to displace the rising vapors in a preferred direction and / or to cause the vapors to rotate. This enables particularly effective and homogeneous vapor intake. In particular, vapors are focused toward the intake section 3 or even toward the center of the intake section 3. This even captures the vapor portion that would otherwise flow past the extractor hood due to the round shape of the screen device 2 or the intake section 3.

[0071] Overall, a compromise must be found regarding the number of fan units 7, 8, and 9, depending on the extractor hood. The more intake zones and, accordingly, the more fan units 7, 8, and 9 are provided, the more evenly the vapors can be drawn in across the entire filter surface. However, care should also be taken to use as few fan units 7, 8, and 9 as possible to avoid unnecessarily increasing the energy consumption and manufacturing costs of the extractor hood.

[0072] In the illustrated embodiment, each intake zone 4, 5, 6 is assigned its own filter device 11 and a respective decorative device 17. The segmented intake section allows for the use of several smaller filter devices 11, allowing a user to remove them more easily and clean them more effectively, for example, in a dishwasher.

[0073] In Fig. 3 shows a cooktop device 200 with multiple cooking zones 201 in a purely schematic view from above. The dashed circle indicates the extractor hood 1 arranged above the cooktop device 200 or the screen device 2 of the extractor hood 1 purely schematically.

[0074] In this view, it can be seen that the diameter 14 of the screen device or the suction section 3 is smaller than the larger dimension 203 of the hob device 200. In the illustrated embodiment, the diameter 14 of the screen device 2 or the suction section 3 also corresponds to the smaller dimension 202 of the hob device 200.

[0075] In general, it is preferred that the diameter 14 of the screen device 2 or the suction section 3 be smaller, equal to, or at least not significantly larger than the dimensions 202, 203 of a cooktop device 200 arranged underneath. This ensures that a user is provided with the best possible headroom in front of a cooktop device 200 or an extractor hood 1.

[0076] In Fig. 3 further shows that due to the dimensions and round shape of the screen device 2, the entire hob device 200 is not covered by the screen device 2. Thus, it could happen under certain circumstances that rising vapors are not captured by the screen device 2 and sucked into the extractor hood 1. Vapors could then rise past the screen device 2 and upwards.

[0077] However, this is effectively prevented by the special design of the extractor hood 1 according to the invention. By dividing the intake section 3 into several intake zones 4, 5, 6, each with separate fans 7, 8, 9, the concentration of intake power otherwise present in extractor hoods is shifted from the center to an edge area, as previously described. This effectively extracts vapors even at the edges.

[0078] In addition, a special positioning of the fan units 7, 8, 9 and / or a special control of the individual fan units 7, 8, 9 results in particularly effective vapor extraction, so that effective vapor extraction can be achieved despite the relatively small dimensions of the round shield unit 2. The exact functioning of the control of the individual fan units and the precise arrangement of the fan units 7, 8, 9 relative to one another is explained in more detail in the following figures.

[0079] In Fig. Figure 4 is a purely schematic representation of another embodiment of a cooking system 100 according to the invention, comprising an extractor hood 1 according to the invention and a cooktop device 200. This view also shows, in the perspective representation of the extractor hood 1, that the intake section 3 is divided into three intake zones 4, 5, 6, each with separate fan devices 7, 8, 9.

[0080] The fan devices 7, 8, 9 are arranged on a pitch circle diameter, with the individual fan devices 7, 8, 9 each arranged offset by 120° from one another. In other advantageous embodiments, particularly when using more or fewer than three fan devices, the fan devices 7, 8, 9 can also be arranged differently relative to one another.

[0081] It can also be seen that the fan devices 7, 8, 9 are not aligned vertically downwards, but are arranged at an incline on the intake section 2 or in the individual intake zones 4, 5, 6.

[0082] Depending on the embodiment, either the intake zones 4, 5, 6 or the fan devices 7, 8, 9 can be provided at an incline on the shield device 2. Inclined here is understood in particular to mean that the fan devices 7, 8, 9 and / or the intake zones 4, 5, 6 are inclined in the radial and / or translational direction. In the exemplary embodiment shown here, each fan device 7, 8, 9 is inclined in the same way with respect to the pitch circle, whereby the alignment of the fan devices 7, 8, 9 is not intended to be parallel to one another.

[0083] In the embodiment shown, the inclination of the fan devices 7, 8, 9 is achieved by inclining the intake zones 4, 5, 6. In this case, a predetermined and unchangeable inclination of the intake zones 4, 5, 6 or the fan devices 7, 8, 9 is structurally predetermined.

[0084] In other embodiments, the intake zones 4, 5, 6 and / or the fan devices 7, 8, 9 can also be assigned an alignment device, via which the inclination of the intake zones 4, 5, 6 and / or the fan devices 7, 8, 9 can be adapted to the corresponding conditions depending on the installation situation during assembly or variably during operation.

[0085] In Fig. Figure 4 also shows, purely schematically, how the vapors from a cooking vessel 205 standing on a cooking zone 201 rise upwards toward the extractor hood 1 when the extractor hood is not in operation. It can be seen that part of the vapors strike the screen device 2 or the intake section 3, and that part passes the extractor hood 1 or the screen device 2.

[0086] In Fig. 5 is the Fig. 4 is shown again, with the fan device 7 of the intake section 4 being activated. Since, according to the invention, several decentralized fan devices 7, 8, 9 are provided on the intake section 3, vapors are also effectively sucked in from the edge areas of the screen device 2.

[0087] In this case, Fig. 5, only the fan device 7 is put into operation, whereby the suction power provided by the fan device 7 is sufficient to effectively suck in the vapors rising from the cooking area 201. Since the fan devices 7, 8, 9 can be controlled individually, only the fan device 7 above the active cooking zone 201 can be put into operation due to the current low utilization of the cooking area device 200. The suction of the individual fan devices 7, 8, 9 is particularly effective due to the decentralized suction and the inclination of the suction zones 4, 5, 6. This allows energy to be saved. Overall, the total suction power of the extractor hood 1 is distributed among the three fan devices 7, 8, 9.

[0088] In Fig. Figure 6 illustrates, purely schematically, that a particularly homogeneous intake of vapors can occur when all fan devices 7, 8, 9 are in operation. Depending on the amount of rising vapor, it may also be advantageous for the extractor hood 1 according to the invention to operate several or all of the fan devices 7, 8, 9.

[0089] Due to the inventive design of the extractor hood 1 and the fact that the individual fan devices 7, 8, 9 can be controlled separately by the control device 15, it is also possible that a preferred direction for the flow of the vapors to be extracted is specified by a special control of the fan devices 7, 8, 9.

[0090] In particular, it is also possible for the vapors to be set in a rotational movement. The different types of vapor extraction by means of the extractor hood 1 according to the invention are shown purely schematically and by way of example in Fig. 7 shown.

[0091] The upper view shows that the rising vapors from a cooking zone 201 are sucked in essentially vertically upwards when only one fan device 7 is used above the cooking zone 201.

[0092] In the middle illustration it is indicated purely schematically that by switching on a second fan device 8 the vapors can be diverted in a preferred direction.

[0093] In the illustration below in Fig.Figure 7 further shows that by sequentially starting or operating the three fan devices 7, 8, 9, the rising vapor can be set into a rotational motion, which allows for particularly effective vapor extraction. The rotational motion of the rising vapor effectively concentrates the vapor in the upwardly rising, rotating vapor stream, which particularly effectively prevents parts of the rising vapor from flowing past the screen device 2, which would prevent all of the vapor from being extracted by the extractor hood 1. List of reference symbols 1 extractor hood 2 umbrella device 3 Intake section 4 intake zone 5 Intake zone 6 intake zone 7 Fan setup 8 Fan device 9 Fan device 11 Filter device 12 Assembly section 13 Lighting equipment 14 diameters 15 Control device 16 Communication module 17 Decorative equipment 19 vapor shield 20 Center 100 cooking system 200 hob equipment 201 cooking zone 202 Expansion 203 Expansion 204 Communication module 205 Cooking vessel

Claims

[1] Extractor hood (1) comprising at least one screen device (2) with at least one round intake section (3) and at least one control device (15), characterized by that the intake section (3) comprises at least two intake zones (4, 5, 6), wherein each intake zone (4, 5, 6) is assigned at least one separate fan device (7, 8, 9) and wherein the fan devices (7, 8, 9) can be controlled separately by means of the control device (15). [2] Extractor hood (1) according to one of the preceding claims 1, characterized by that the intake zones (4, 5, 6) are designed the same. [3] Extractor hood (1) according to one of the preceding claims, characterized by that the fan devices (7, 8, 9) of the intake zones (4, 5, 6) are distributed over a pitch circle diameter of the round intake section (3) and in particular are provided offset by 120° to one another on the pitch circle diameter. [4] Extractor hood (1) according to one of the preceding claims, characterized by that each intake zone (4, 5, 6) is assigned at least one filter device (11). [5] Extractor hood (1) according to one of the preceding claims, characterized by that at least one intake zone (4, 5, 6) and / or at least one fan device (7, 8, 9) is provided inclined on the intake section (3). [6] Extractor hood (1) according to one of the preceding claims, characterized by that at least one alignment device is assigned to at least one intake zone (4, 5, 6) and / or at least one fan device (7, 8, 9) in order to change the alignment of the intake zone (4, 5, 6) and / or the fan device (7, 8, 9) and / or the fan device (7, 8, 9) in the intake zone (4, 5, 6). [7] Extractor hood (1) according to one of the preceding claims, characterized bythat at least one communication module (16, 204) is provided in operative connection to the control device (15). [8] Cooking system (100) comprising at least one cooking surface device (200) with at least one cooking zone (201) and at least one extractor hood (1) according to one of the preceding claims arranged at least partially above the cooking surface device (200). [9] Cooking system (100) according to the preceding claim, characterized by that the diameter (14) of the screen device (2) and / or the suction section (3) is not larger than at least one dimension (202, 203) of the hob device (200). [10] A method for operating a cooking system (100) according to any one of claims 8 or 9, characterized by that the individual fan devices (7, 8, 9) are switched on and / or off as required in order to specify a preferred direction for the vapors rising from the cooking surface device (200). [11] Method according to the preceding claim, characterized by that only one of the fan devices (7, 8, 9) is operated. [12] Method according to one of the two preceding claims, characterized by that several fan devices (7, 8, 9) are operated simultaneously. [13] Method according to one of the preceding claims 10 to 12, characterized by that the fan devices (7, 8, 9) are operated one after the other in order to set the vapors rising from the cooking surface device (200) into a rotating movement. [14] Method according to one of the preceding claims 10 to 13, characterized by that the fan devices (7, 8, 9) are operated sequentially in order to control the preferred direction of the vapors rising from the cooking surface device (200). [15] Method according to one of the preceding claims 10 to 14, characterized byin that the hob device (200) and the extractor hood (1) each comprise a communication module (16, 204) and are networked by means of this, wherein the control device (15) automatically controls the fan devices (7, 8, 9) and takes into account the information transmitted by the hob device (200) during the control.

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