EXTRACTOR AND COMBINATION DEVICE

Description

[0001] The present invention relates to an extractor device in the form of a downdraft extractor and a combination device with an extractor device.

[0002] To clean the air, especially the fumes and vapors produced during cooking, it is known to use extractor hoods. These draw air through a filter and then clean it on the filter. Extractor hoods can be designed as extractor hoods, which draw air upwards. However, extractor hoods that draw air downwards are also known. These extractor hoods are also called downdraft extractors or table extractors. This type of extractor hood can be installed in or next to the cooktop. The intake opening, through which air enters the extractor hood, is preferably horizontal.

[0003] One problem with this type of extractor is that liquids can either drip off the filter element or otherwise enter the extractor. This leads to contamination of the extractor and, if excessive amounts of liquid are present, can also damage the extractor, for example, if the fan comes into contact with the liquid.

[0004] DE 10 2017 217 853 A1 describes an extractor device for extracting cooking fumes downwards according to the preamble of claim 1. The extractor device comprises a fan device for sucking in the cooking fumes, comprising a rotatably driven fan wheel, a fan motor for providing a drive torque, and a detachable fan clutch for transmitting the drive torque to the fan wheel. A collecting tray can be arranged in the fan housing, which is located between the fan wheel and the fan housing and is connected to the fan housing in a rotationally fixed manner.

[0005] KR 100372393 B1 describes an extractor hood that features a water tank for washing water. The water tank is located on the underside of the extractor hood.

[0006] EP 3 614 053 A1 describes an extractor device having an intake opening on its upper side through which air is sucked downwards into the extractor device. The extractor device has an outlet opening provided in the lower region of a housing of the extractor device and a collecting device that is detachably connected to the outlet opening and has a collecting container that is compressible at least in some areas. Furthermore, a combination appliance having at least one such extractor device and at least one hob (6) is described.

[0007] WO 2019 210 975 A1 describes another air purification device. US 4,736,729 A describes a downdraft extractor device to which a glass or container can be screwed. US 3,587,555 A describes an extractor device in which a collecting container can be provided at the bottom of an air chamber.

[0008] EP 3 133 349 A1 discloses a filter unit for an extractor device, comprising at least one filter body with at least one filter element and at least one collecting area for liquids. The filter body forms a hollow body at least in some areas. An air inlet opening is formed in the top side of the filter body for admitting air drawn in by the extractor device. An air outlet opening is formed in the bottom side of the filter body for discharging air from the filter unit to the extractor device. At least one collecting element for collecting liquids is provided in the interior of the filter body and is arranged offset upwards relative to the bottom side of the filter body. A combination device comprising such a filter unit is also described.

[0009] EP 3 290 813 A1 discloses an extractor device comprising a fan, an extractor housing, and a filter unit. The extractor device is characterized in that it comprises a collecting container for liquids with at least one overflow opening and an additional container for liquids, and a liquid line is located at least partially between the collecting container and the additional container. Furthermore, a combination device comprising such an extractor device is described.

[0010] The object of the present invention is therefore to provide a solution in which the operation and safety of the extractor extraction device can be ensured in a simple manner and with a simple structure of the extractor extraction device.

[0011] According to a first aspect, the invention relates to an extractor device in the form of a downdraft extractor, which comprises a fan with a fan housing having an air inlet opening directed upwards in the fan housing, a device housing, a filter unit arranged above the fan housing, and a collecting container for liquids.The extractor extraction device is characterized in that the collecting container is arranged in the device housing next to the fan housing in a vertical plan view of the fan housing, a side wall of the collecting container rests against a part of a wall of the device housing, a side wall of the collecting container extends along a part of the outside of the outer wall of the fan housing, rests against this part of the outside and has the same shape as this part of the outside, and the extractor extraction device has a drainage channel which is arranged on the filter unit, the free end of which lies above the collecting container and which serves to drain liquid from the filter unit.

[0012] Directional information such as above or below refers - unless otherwise stated - to an embodiment of the extractor hood and its components in which the extractor hood, when installed, is arranged at least partially below a hob and in which the intake opening is located in the hob.

[0013] An extractor hood is a device by means of which contaminated air, in particular fumes and vapors created during cooking, can be sucked in. To clean the air, a filter unit is provided in the extractor hood, which preferably has at least one filter element. The extractor hood also has a fan and a device housing. A component consisting of a fan motor and a fan wheel is referred to as a fan. The fan is preferably a radial fan. The fan housing is preferably a spiral housing. According to the invention, the fan is aligned such that an air inlet opening in the fan housing faces upwards. The fan housing has a curved outer wall.

[0014] According to the invention, a device housing is referred to as a component in which at least the fan of the extractor extraction device is accommodated. Preferably, all elements necessary for the operation of the extractor extraction device are provided in or on the device housing. The device housing preferably has a receiving space for the fan. In addition, the device housing preferably has an intake opening through which air can enter the extractor extraction device and in which the filter unit is preferably arranged. The air inlet opening can also be formed in a cover plate that covers the device housing at the top and represents, for example, a cover plate of a hob. Furthermore, at least one receiving space for electronic components that serve to operate the fan can be provided in the device housing. The device housing preferably has a rectangular cross-section.In particular, the device housing has a box shape that may be open at the top. The device housing therefore comprises a base and four walls, which preferably extend vertically upward from the base.

[0015] The extractor hood further comprises at least one collecting container for liquids. A collecting container is a container in which liquids that enter the extractor hood or are created therein, for example, that are condensed in the filter unit, can be caught and collected. The collecting container can therefore also be referred to as a collecting tank. The filter unit is arranged above the fan housing. The liquids are, in particular, condensate or grease. In addition, other liquids, for example, condensate that has formed on other parts of the filter unit or liquids that run into or drip into the filter unit, can be collected in the collecting container. The collecting container preferably has a base and at least one side wall. The cross-sectional shape of the collecting container is preferably non-circular.This means that the collecting container preferably has at least two side walls, one of which is a flat surface. In the simplest case, the collecting container has a rectangular cross-section.

[0016] The extractor device is characterized in that the collecting container is arranged in the device housing adjacent to the fan housing and one side of the collecting container extends along at least part of a wall of the device housing.

[0017] A collecting container is referred to as being arranged adjacent to the fan housing if it lies next to the fan housing in a vertical plan view of the latter. Particularly preferably, the collecting container is located next to the fan housing in such a way that the collecting container touches the fan housing in some areas. The collecting container is preferably arranged such that the upper end of the collecting container and in particular an inlet opening arranged in the upper side of the collecting container are at a lower height than the upper side of the fan housing. According to the invention, a side wall of the collecting container extends along a wall of the device housing. A side wall of the fan housing which extends parallel to the wall and rests against the side wall is referred to as extending along the wall of the device housing. The side wall preferably extends at a short distance from the wall.

[0018] The direction in which the side wall extends along the wall is preferably horizontal. The side wall can thus cover part of the length of a wall. It is also within the scope of the invention for the side wall to extend along the entire length of the wall of the device housing.

[0019] According to the invention, a side wall of the collecting container also extends along a part of the outside of the fan housing. The outside is referred to as the side of the outer wall of the fan housing which faces away from the interior of the fan housing in which the fan is accommodated. A side wall of the collecting container is referred to as extending along a part of the outside of the fan housing if it rests against a part of the outside of the fan housing and has the same shape as this part. Since the fan housing is preferably a spiral housing and thus has a curved outer wall, the side wall of the collecting container which extends along the part of the outside of the fan housing preferably has a corresponding curvature.

[0020] By arranging the collecting container in the device housing adjacent to the fan housing and by extending a side wall of the collecting container along at least part of the wall of the device housing, the path the fluid must travel from the fan housing to the collecting container can be minimized. Furthermore, by extending along the wall of the device housing, the space in the device housing surrounding the fan housing can be optimally utilized and the capacity of the collecting container can be maximized.Particularly in the case of a device housing with a rectangular cross-section, into which a spiral housing is inserted as a fan housing such that the air inlet opening of the fan housing points upwards and thus the spiral cross-section of the fan housing lies horizontally, at least one gap created in the corners of the device housing between the fan housing and the device housing can be used for the collecting container, and due to the design according to the invention, the collecting container can preferably completely fill the gap. In particular, by extending a side wall of the collecting container along part of the outer wall of the fan housing, the advantage can be achieved that the size of the collecting container can be maximized in the available installation space in the device housing and thus the storage capacity of the collecting container can be maximized.

[0021] The collection container can be permanently installed in the device housing. For example, the collection container can be attached to the bottom of the device housing. In this case, the collection container can consist only of side walls, with part of the bottom of the device housing forming the bottom of the collection container.

[0022] According to a preferred embodiment, at least part of the collection container is detachably held in the extractor device. By making at least part of the collection container detachable, access to the interior of the collection container can be ensured, allowing it to be at least emptied. The detachable part of the collection container can be connected to the extractor device via a plug-in, snap-in, or screw connection.

[0023] The removable part can be attached to the collection container itself or to another component of the extractor device.

[0024] According to one embodiment, the detachable part of the collection container is a closure at the bottom of the collection container. The closure closes an outlet opening in the bottom of the collection container. In this embodiment, the collection container itself can be permanently connected to the device housing or detachably attached to the extractor hood. The outlet opening can be a round hole punched or otherwise introduced into the bottom of the collection container. If the collection container is made of plastic, the outlet opening can be left open, for example, when spraying the collection container. Depending on the design of the closure, a thread or other connecting element can also be provided on the outlet opening. By removing the closure, the user can access and clean the interior of the collection container.

[0025] Although the invention is not limited to a specific type of attachment of the closure to the outlet opening, attachment via a bayonet connection between the base of the collecting container and the closure or, in the case of a stationary collecting container, between the base of the device housing and the closure is preferably used. For this purpose, locking elements are provided on the closure which engage with corresponding locking elements on the outlet opening when the closure is rotated through a predetermined angle of rotation. Alternatively, screw connections or pure plug-in or locking connections can also be used to attach the closure to the outlet opening. The advantage of a bayonet connection, however, is that the closure does not have to be rotated through a large angle of rotation, as is necessary with a screw connection.The required angle of rotation for the bayonet connection is determined by the number of locking elements.

[0026] According to a further embodiment, the closure is a cap in which an emptying opening is introduced, and the emptying opening is closed by a plug. A cap is understood to be a component that has a surface area large enough to cover the outlet opening of the collecting container or the base of the device housing and to be attached to this. In one embodiment, the cap is a plate. The emptying opening is smaller than the outlet opening. By incorporating an emptying opening in the closure, the user can empty the collecting container, which can be fixedly or detachably provided on the extractor device, via the smaller emptying opening before the closure is removed, for example in order to clean the collecting container from the inside. Emptying can be carried out by removing the plug from the emptying opening.The user can position another container under the collection container and thus collect and dispose of the liquid from the collection container in the other container.

[0027] According to one embodiment, the plug is made of a flexible material. This embodiment has the advantage that the plug can be easily inserted into the discharge opening by pushing it upwards and can be pulled downwards for removal. The plug preferably has a tab for gripping the plug, which can, for example, extend radially from the plug in one direction. Instead of a tab, another grip, such as a ring, can also be provided on the plug.

[0028] According to a further embodiment, a spring construction is provided on the closure, and the plug is pressed onto the closure via a spring of the spring construction. According to a preferred embodiment, the spring construction is provided on the top side of the closure, and the spring presses the plug onto the closure from above. The plug is preferably pressed onto the closure in the region of the emptying opening. In this embodiment, the plug can have a diameter that is larger than the diameter of the emptying opening. To open the emptying opening for the emptying process, the plug is pressed upwards from below through the emptying opening. A pointed object, such as a pin, can be used for this. The spring construction can, in particular, have a spring frame on which the spring acting on the plug is supported.In this embodiment, the plug with spring construction can also be called a valve.

[0029] According to a further embodiment, the closure has a drainage hose at the drainage opening on the underside, and the drainage hose is held on the underside of the closure. By providing a drainage hose at the drainage opening, the liquid can be reliably transported from the collection container to another vessel that the user can place or hold under the drainage opening. Preferably, a plug or valve is provided at the free end of the drainage hose. The drainage hose can, for example, be held in a winding device on the underside of the closure.

[0030] According to a further embodiment, the closure has a cylindrical wall on the top side, which extends upwards from the closure. The cylindrical wall can have an external thread over at least part of its height, whereby the closure can be fastened to the outlet opening. Alternatively, the closure with the cylindrical wall can also be fastened to the outlet opening by means of a plug-in or snap-in connection. According to one embodiment, the cylindrical wall has axially extending recesses. This allows a bayonet connection to be created if corresponding counter-elements are provided at the outlet opening. The cylindrical wall preferably has an annular groove extending over the circumference at the lower end.By providing a cylindrical wall on top of the cap, some of the liquid from the collection container can be retained in the cylindrical wall when the cap is removed, making emptying the collection container easier. After removing the cap, the user can access and clean the interior of the collection container.

[0031] According to a further embodiment, the entire collection container is detachably held in the extractor hood. Thus, in this embodiment, the entire collection container represents the part of the collection container that is detachable. Since the collection container can be detached from the extractor hood and thus removed, prior emptying via the floor is not absolutely necessary. Instead, the user can remove the filled collection container from the extractor hood, empty it, and if necessary, clean it in a dishwasher. The collection container is preferably attached to the extractor hood in such a way that the collection container can be removed downwards. Even in the embodiment in which the entire collection container is detachably attached, a closure according to one of the embodiments described above can be provided in the base of the collection container.This allows the collection container to be at least partially emptied via the cap and then removed and cleaned, for example, in a dishwasher.

[0032] According to one embodiment, the detachable collecting container has a connecting element that extends from the bottom of the collecting container across the entire height of the collecting container. This allows the collecting container to be easily attached to the extractor device from below. In particular, the collecting container can be attached to a component that is located above the collecting container when installed, without requiring access to the upper component.

[0033] According to one embodiment, the collecting container is a container that is open at the top. In this case, the collecting container consists only of a base and at least one side wall. Preferably, the collecting container has at least three side walls. The fact that the collecting container is open at the top ensures that liquids can be directed into the collecting container. Furthermore, the collecting container can be easily emptied after removal.

[0034] However, it is also within the scope of the invention for the collecting container to be closed at the top. In this case, however, at least one inlet opening is provided in the top of the collecting container.

[0035] According to one embodiment, the extractor extraction device has a receiving housing for the collecting container, which is open at the bottom. The receiving housing can, for example, consist of a cover plate, to the underside of which the collecting container can be attached. In a further embodiment, the receiving housing has at least one side surface. The side surfaces of the receiving housing can be used to guide the container laterally from below during insertion and removal. This can prevent pivoting and thus spillage of liquid. The receiving housing can be attached to the outer wall of the fan housing or molded onto it. In particular, the cover plate of the receiving housing can extend horizontally from the outer wall of the fan housing. If one or more side surfaces are provided on the receiving housing, the shape of the cross section of the receiving housing corresponds to the shape of the cross section of the collecting container.If a receiving housing is provided, this has an inlet opening in the cover plate.

[0036] According to the invention, the extractor device has a drainage channel which is arranged on the filter unit and whose free end lies above the collecting container. The drainage channel can be a tube or a channel open at the top. The drainage channel can be arranged on the filter unit, in particular in the lower region of the filter unit. The drainage channel is preferably a separate component from the filter unit. In particular, the filter unit can be removed at least partially from the extractor device without the exhaust air duct. According to one embodiment, the filter unit has a filter carrier in which the filter element(s) are held and which is detachably inserted into the filter unit. The filter unit can also have a filter housing which is fixedly arranged in the extractor device and into which the filter carrier can be inserted. In this case, the drainage channel can be fixedly connected to the filter housing.According to the invention, the drain channel serves to drain liquid from the filter unit. Therefore, the drain channel is preferably arranged at an overflow opening on the filter unit.

[0037] The end of the drain channel facing away from the filter unit is referred to as the free end of the drain channel. The free end of the drain channel is preferably located above the collecting container. In particular, the free end of the drain channel is located above an inlet opening of the collecting container. This ensures reliable flow of the liquid into the collecting container.

[0038] According to one embodiment, the collecting container has an inlet opening. The inlet opening is provided in the top of the collecting container or is provided in a cover plate of a housing for the collecting container. The inlet opening is preferably larger than the free end of the drain channel. This ensures that the liquid is guided from the drain channel into the collecting container.

[0039] According to a further aspect, the invention relates to a combination appliance comprising a hob and an extractor hood according to the invention.

[0040] Advantages and features described with regard to the extractor device according to the invention apply - where applicable - accordingly to the combination device according to the invention and vice versa.

[0041] The combination appliance comprises a cooktop and an extractor fan. These two components can share a common power connection and, for example, be controlled by a common control unit. According to the invention, the extractor fan is located at least partially beneath the cooktop. The extractor fan thus represents a cooktop extractor, downdraft extractor, tabletop extractor, or downdraft extractor.

[0042] Particularly preferably, the intake opening of the extractor device is provided in the hob. Particularly preferably, the intake opening is formed by a recess in the cover plate of the hob.

[0043] In the embodiment in which the extractor hood is located at least partially beneath the hob, the advantages of the present invention, particularly the limited installation space available due to the extractor hood, can be utilized particularly effectively. Furthermore, with such a combination appliance, the probability of liquids entering the extractor hood is particularly high. With the combination appliance according to the invention, the danger posed by such liquid ingress can be minimized and cleaning the extractor hood can be simplified.

[0044] The present invention will be explained again below with reference to the accompanying drawings. They show: Figure 1: a schematic sectional view of an embodiment of the extractor device; Figure 2: a schematic perspective view of an embodiment of the extractor device with a first embodiment of the collecting container; Figure 3: a schematic perspective view of one of the extractor devices according to Figure 2in a combination appliance; Figures 4 and 5: schematic plan views of an embodiment of the combination appliance; Figure 6: a schematic sectional view of a further embodiment of the extractor hood with a second embodiment of the collecting container; Figures 7 and 8: schematic perspective views of a first embodiment of a closure for the collecting container; Figures 9 and 10: schematic perspective views of a second embodiment of a closure for the collecting container; Figures 11 and 12: schematic perspective views of a third embodiment of a closure for the collecting container; and Figures 13 and 14: schematic perspective views of a fourth embodiment of a closure for the collecting container.

[0045] In Figure 3is a schematic perspective view of an embodiment of the extractor device 11 in a combination appliance 1. The combination appliance 1 consists of a hob 10 and an extractor device 11. In Figure 1 Only the cover plate 102 of the hob 10 is visible. A recess is provided in the cover plate 102, which forms the intake opening 103 of the extractor device 11.

[0046] The extractor device 11 has a fan with a fan housing 111, a device housing 15, and a filter unit 14. The filter unit 14 is arranged above the fan housing 111. In particular, the filter unit 14 is arranged above the air inlet opening, which is incorporated in the top of the fan housing 111. The filter unit 14 has filter elements (not shown), each held in a filter holder. The filter holders are incorporated in a filter housing. In particular, the filter holders stand on the bottom of the filter housing. In the lower region of the filter housing, on one side of the filter housing near the bottom, an overflow opening is provided. A drain channel 13 is arranged on the filter unit 14 in the region of the overflow opening. The drain channel 13 preferably rests against the filter unit 14, but is not connected to it or is only detachably connected to it.

[0047] As can be seen from Figure 1The fan housing 111 is a spiral housing and, in particular, has, in addition to the top side, an outer wall 1111 which has a curved shape.

[0048] The extractor hood 11 further comprises an appliance housing 15. In the illustrated embodiment, in addition to the extractor hood 11, the hob 10 and the cover plate 102 are also accommodated in the appliance housing 15. The cover plate 102 covers the upwardly open appliance housing 15. The appliance housing 15 has a rectangular shape. In particular, the appliance housing 15 has a base 150 and four walls 151 extending upwardly from the base 150.

[0049] As in the Figures 1 to 3As can be seen, a collecting container 12 is arranged in the device housing 15 adjacent to the fan housing 111. The collecting container 12 has a height that is less than the height of the fan housing 111 and is arranged on the floor 150 of the device housing 15. An insertion opening (not visible) for the collecting container 12 is provided in the floor 150.

[0050] In the first embodiment, the collecting container 12 has a side wall 121 that corresponds to the shape of the outer wall 1111 of the fan housing 111 in the curved region. Furthermore, the collecting container 12 has two side walls 121, each extending along a wall 151 of the device housing 15 and meeting at a corner of the device housing 15. Finally, the collecting container 12 has two side walls 121, each extending inward from the respective end of the side wall 121 extending along the wall 151, which is facing away from the corner, and meeting the ends of the curved side wall 121. In this embodiment, the collecting container 12 thus fills the entire corner region of the device housing 15 between the fan housing 111 and the device housing 15. In the first embodiment, the collecting container 12 is a container that is open at the top and is inserted from below into a receiving housing 112.In the embodiment shown, the receiving housing 112 is attached to the outer wall 1111 of the fan housing 111 and is formed by a cover plate 1120 and side surfaces extending downward from this. The cross-sectional shape of the receiving housing 112 corresponds to the cross-sectional shape of the collecting container 12. An inlet opening 124 is provided in the top side of the receiving housing 112, which can also be referred to as the inlet opening of the collecting container 12. The inlet opening 124 is arranged such that it is located below the free end of the drain channel 13. As can be seen from FIG. Figure 1 The inlet opening 124 has a large width. In particular, the width can be greater than the width of the free end of the drain channel 13.

[0051] Furthermore, the collecting container 12, as can be seen in particular from the Figures 2 and 3In the embodiment shown, the connecting element 123 extends from the bottom 120 of the collecting container 12 over its entire height. In this embodiment, the connecting element 123 provides a passage channel for a fastening element 1230. The fastening element 1230 can be, for example, a screw. Figure 2 The fastener 1230 is shown as a screw with a knurled wheel on the lower end.

[0052] Occurs in the Figures 1 to 6 If, in the embodiment shown, liquid enters the intake opening 103 of the extractor device 1, it enters the filter housing 142 of the filter unit 14 and is guided there to the drain channel 13. The liquid is guided into the collecting container 12 via the drain channel 13.

[0053] The collection container 12 is screwed from below to the extractor device 11, in particular to the cover plate 1120 of the housing 112. To remove the collection container 12, the fastening element 1230 is unscrewed, allowing the collection container 12 to slide downwards within the housing 112 and be removed from below. The collection container 12 can be cleaned, for example, in a dishwasher after emptying.

[0054] As can be seen from the Figures 4 and 5 When the filter unit 14 is inserted, the drainage channel 13 is neither visible nor accessible from above. However, if the filter unit 14 is removed, the drainage channel 13 can be cleaned from above, for example, using a brush.

[0055] In the Figure 6A further embodiment of the extractor device 11 is shown with a second embodiment of the collecting container 12. This embodiment of the collecting container 12 differs from the first embodiment only in that in the second embodiment the collecting container 12 is firmly connected to the extractor device 11. The further features of the embodiment of the extractor device according to Figures 1 to 5 can also be realized in the second embodiment.

[0056] In this embodiment, the collecting container 12 can be formed only by the side walls 121, which preferably extend perpendicularly from the bottom 150 of the device housing 15 and are attached thereto. The area of ​​the bottom of the device housing 15 that is bounded by the side walls 121 forms the bottom of the collecting container 12 and is therefore also referred to as the bottom 120. An outlet opening 1200 is provided in the bottom 120, which in the embodiment shown represents a circular recess. Locking elements are provided at the outlet opening 1200, via which a closure 122 can be attached to the outlet opening 1200.

[0057] In the Figures 7 to 14 four embodiments of the closure 122 are shown.

[0058] In the first to third embodiments, locking elements 1222 are provided on the top side of the closure 122, by means of which the closure 122 can be fastened to the outlet opening 1200, for example by means of a type of bayonet closure.

[0059] In the first embodiment, which is shown in Figures 7 and 8 As shown, the closure 122 represents a cap in which a discharge opening 1225 is provided. In the first embodiment, the discharge opening 1225 is closed by a plug 1220 made of a flexible material and from which a tab 1221 extends on the underside of the closure 122.

[0060] In the second embodiment, which is shown in the Figures 9 and 10As shown, a valve is provided on the closure 122. In particular, a spring structure is provided on the top of the closure 122, which consists of a spring frame 1224 and a spring element 1223 extending between the spring frame 1224 and the top of a plug 1220 resting on the discharge opening 1225. The spring element 1223 presses the plug 1220 onto the closure from above. Preferably, the plug is pressed onto the closure in the region of the discharge opening.

[0061] In the third embodiment, which is shown in the Figures 11 and 12 As shown, the closure 122 has a drain hose 1227 at the bottom of the drain opening 1225. In this embodiment, the drain hose 1227 is wound in a spiral holder on the bottom of the closure. A plug 1220 is provided at the free end of the drain hose 1227, which can be pulled out by the user.

[0062] In the fourth embodiment, which is shown in the Figures 13 and 14 As shown, the closure 122 has a cylindrical wall 1228 on its top side, which extends upward from the closure 122. In the embodiment shown, the cylindrical wall 1228 has axially extending recesses. This allows a bayonet connection to be established if appropriate counter-elements are provided at the outlet opening 1200.

[0063] The closure 122 according to one of the four embodiments shown or another embodiment of the closure 122 can also be used in the first embodiment of the collecting container according to Figures 1 to 5 be used. In this case, the outlet opening 1200 is provided in the bottom 120 of the removable collecting container 12.

[0064] The present invention has a number of advantages. In particular, the user can remove and / or clean the collection container from below the extractor hood. Due to the shape of the collection container, its capacity is maximized even with a smaller combination appliance, for example, one with a width of 60 cm. Because the collection container is arranged adjacent to the fan housing, contamination of electronic components, which are generally located at a level above the fan housing, by liquid is prevented. Furthermore, the collection container is easily accessible to the user due to its arrangement on the floor of the appliance housing. With a fixed collection container, the user can easily access the interior of the collection container by providing a detachable closure on the floor.The user can choose which type of closure to use. Closures can be offered as accessories, for example. From the closure, the liquid can be connected to the normal kitchen drain via a connecting hose, for example. For this purpose, a connecting hose can be used that has a connection similar to a dishwasher drain hose, for example. List of reference symbols

[0065] 1 Combination appliance 10 Hob 102 Cover plate 103 Intake opening 11 Extractor fan 111 Fan housing 1111 Outer wall 112 Housing 1120 Cover plate 12 Collecting container 120 Base 1200 Outlet opening 121 Side wall 122 Closure 1220 Plug 1221 Tab 1222 Latching element 1223 Spring element 1224 Spring frame 1225 Drain opening 1226 Inclined area 1227 Drain hose 1228 Cylinder wall 123 Connecting element 1230 Fastening element 124 Inlet opening 13 Drain channel 14 Filter unit 15 Appliance housing 150 Base 151 Wall

Claims

1. Vapour extraction device in the form of a downdraft fan, which has a fan with a fan housing (111), which has an air inlet aperture, which is directed upwardly in the fan housing, an appliance housing (15), a filter unit (14), which is arranged above the fan housing (111), and a collection tank (12) for liquids, characterised in that, when the fan housing (111) is viewed perpendicularly from above, the collection tank (12) is arranged next to said fan housing (111) in the appliance housing (15), a side wall (121) of the collection tank (12) abuts a part of a wall (151) of the appliance housing (15) and extends parallel to this part of the wall of the appliance housing, a side wall of the collection tank (12) extends along a part of the outer side of the outer wall (1111) of the fan housing (111), abuts this part of the outer side and has the same shape as this part of the outer side, and the vapour extraction device has a drainage duct (13), which is arranged on the filter unit (14), the free end of which lies above the collection tank (12) and serves for discharging liquid from the filter unit.

2. Vapour extraction device according to claim 1, characterised in that at least part of the collection tank (12) is held in the vapour extraction device (11) in a releasable manner.

3. Vapour extraction device according to one of claims 1 or 2, characterised in that the releasable part of the collection tank (12) is a closure (122) at the base (120) of the collection tank (12).

4. Vapour extraction device according to one of claims 2 or 3, characterised in that the closure (122) is connected to the base (120) of the collection tank (12) by way of a bayonet connection.

5. Vapour extraction device according to one of claims 3 or 4, characterised in that the closure (122) features a cap, in which an emptying aperture (1225) is provided, and the emptying aperture (1225) is closed by way of a stopper (1220).

6. Vapour extraction device according to claim 5, characterised in that the stopper (1220) is made of a flexible material and has a strap (1221) for gripping the stopper (1220).

7. Vapour extraction device according to claim 5, characterised in that a spring structure (1223, 1224) is provided on the closure (122) and the stopper (1220) is pressed onto the closure (122) by way of a spring element (1223) of the spring structure.

8. Vapour extraction device according to claim 5, characterised in that the closure (122) has a drainage hose (1227) on the underside of the emptying aperture (1225) and the drainage hose (1227) is held on the underside of the closure (122).

9. Vapour extraction device according to one of claims 3 to 8, characterised in that the closure (122) has a cylinder wall (1228) on the upper side, which cylinder wall (1228) extends upwardly.

10. Vapour extraction device according to one of claims 1 to 9, characterised in that the entirety of the collection tank (12) is held in the vapour extraction device (11) in a releasable manner.

11. Vapour extraction device according to claim 10, characterised in that the collection tank (12) has a connection element (123), which extends from the base (120) of the collection tank (12) over the full height of the collection tank (12).

12. Vapour extraction device according to one of claims 1 to 11, characterised in that the collection tank (12) is a tank which is open to the top.

13. Vapour extraction device according to one of claims 1 to 12, characterised in that the vapour extraction device (11) has a receiving housing (112) for the collection tank (12) which is open to the bottom.

14. Combination appliance comprising a hob (10) and a vapour extraction device (11), characterised in that the vapour extraction device (11) is a vapour extraction device (11) according to one of claims 1 to 13.