FUME EXTRACTION DEVICE, SYSTEM FOR INSTALLATION, AND ASSEMBLY KIT FOR A FUME EXTRACTION

Abstract

A fume extraction device for installation in an item of kitchen furniture includes an air duct, a top side provided with an air inlet opening, an appliance housing arranged below the air inlet opening and having a side wall provided with an air outlet opening which is connected to the air duct, a fan arranged in the appliance housing, and a noise filter element received in the appliance housing and including a filter material which is chemically inert.

Claims

1-10. (canceled)

11. A fume extraction device for installation in an item of kitchen furniture, said fume extraction device comprising: a top side provided with an air inlet opening; an appliance housing arranged below the air inlet opening and having a side wall provided with an air outlet opening for connection to an air duct; a fan arranged in the appliance housing; and a noise filter element received in the appliance housing and including a filter material which is chemically inert.

12. The fume extraction device of claim 11, wherein the filter material of the noise filter element is made of plastic.

13. The fume extraction device of claim 12, wherein the plastic is polyethylene terephthalate PET.

14. The fume extraction device of claim 11, wherein the filter material is present as a granulate and/or as a nonwoven fabric.

15. The fume extraction device of claim 11, wherein the noise filter element includes a pleated mat, which is made at least partially of filter material.

16. The fume extraction device of claim 11, wherein the noise filter element is disposed in a flow direction downstream of the air inlet opening of the fume extraction device and upstream of the fan.

17. The fume extraction device of claim 11, further comprising at least two of said noise filter element resting against one another on their end faces, each of the noise filter elements having a length which is less than a length of the air inlet opening, wherein the at least two noise filter elements form a noise filter element unit of a length which is larger than the length of the air inlet opening.

18. The fume extraction device of claim 11, wherein the air duct includes a straight duct element, which is introduced partially into the air outlet opening of the appliance housing.

19. A system for installation of a fume extraction device in an item of kitchen furniture, said system comprising: a fume extraction device comprising a top side provided with an air inlet opening, an appliance housing arranged below the air inlet opening and having a side wall provided with an air outlet opening, and a fan arranged in the appliance housing; an air duct detachably connected to the fume extraction device at an interface of the fume extraction device and formed at the air outlet opening; a filter receptacle arranged in a flow direction downstream of the air inlet opening and upstream of the fan; and a noise filter element detachably received in the filter receptacle.

20. The system of claim 19, wherein the air duct includes a duct element for insertion into the interface of the fume extraction device.

21. The system of claim 19, wherein the air duct includes a straight duct element, which is introduced partially into the air outlet opening of the appliance housing.

22. An assembly kit for installation of a fume extraction device in an item of kitchen furniture, said assembly kit comprising: an air duct including a duct element for detachable connection at an interface of the fume extraction device to an air outlet opening in a top side of the fume extraction device; and a noise filter element configured for arrangement in a flow direction downstream of the air inlet opening and upstream of a fan of the fume extraction device.

23. The assembly kit of claim 22, wherein the air duct includes a straight duct element, which is introduced partially into the air outlet opening.

Description

[0035] The invention is described again below with reference to the accompanying drawings, in which:

[0036] FIG. 1: shows a schematic block diagram of an embodiment of the inventive fume extraction device in the assembled state for the exhaust air mode;

[0037] FIG. 2: shows a schematic perspective view of the embodiment according to FIG. 1 during assembly;

[0038] FIG. 3: shows a further schematic perspective view of the embodiment according to FIG. 1 during assembly;

[0039] FIG. 4: shows a schematic perspective of an embodiment of a noise filter element;

[0040] FIG. 5: shows a schematic front view of the embodiment of the noise filter element according to FIG. 4;

[0041] FIG. 6: shows an embodiment of an inventive assembly kit;

[0042] FIG. 7: shows a schematic detailed view of an edge of the duct element of the assembly kit according to FIG. 7;

[0043] FIG. 8: shows a schematic, perspective rear view of an embodiment of the inventive fume extraction device during the installation;

[0044] FIG. 9: shows a schematic, perspective rear view of an embodiment of a fume extraction device for the air recirculation mode during the installation; and

[0045] FIG. 10: shows a schematic, perspective sectional view of a fume extraction device for the air recirculation mode.

[0046] FIG. 1 shows a schematic block diagram of an embodiment of the fume extraction device 11. In this embodiment the fume extraction device 1 is integrated into a hob 10. The hob 10 and the fume extraction device 11 together are also referred to below as combination unit 1. The combination unit 1 is integrated into a piece of kitchen furniture 4, which is also referred to as kitchen cabinet 4. The kitchen cabinet 4 has a worktop 40 on the topside, which upwardly delimits the interior of the kitchen cabinet 4. The interior of the kitchen cabinet 4 is delimited on the sides by side walls, of which only one is visible in FIG. 1. In the embodiment shown, the interior of the kitchen cabinet 4 is open to the rear.

[0047] The combination device 1 consists of a hob 10 and a fume extraction device 11 integrated therein. The hob 10 has a cover plate 101. A hob housing with heating modules (not shown) arranged therein can be arranged below the cover plate 101. In the cover plate 101, a cut-out 102 is provided in the central region of the cover plate 101, which has a rectangular shape.

[0048] The fume extraction device 11 comprises a fume extraction housing 110 and an air duct 2. The fume extraction housing 110 of the fume extraction device 11 is arranged below the hob 10. The fan housing 112 for a fan (not shown) is formed in the fume extraction housing 110. The fan is preferably a radial fan. The fan housing 112 is designed so that the fan axis of the fan is vertical. This is shown in FIG. 1 by the dashed line. An air inlet opening (not shown) is introduced in the top side of the fume extraction housing 110 and in particular the fan housing 112, which faces the lower side of the hob 10 and rests against it in regions. Air can enter the fan housing 112 from the top by way of the air inlet opening.

[0049] For improved visibility of the components of the fume extraction device 1 in FIG. 1, the cut-out 102 is shown in the width direction of the cover plate 101 of the hob 10. The cut-out 102 preferably, however, extends in the depth direction of the cover plate 101 (see FIGS. 2 and 3).

[0050] In the embodiment shown the air inlet opening 113 of the fume extraction device 11 is formed by the cut-out 102 of the cover plate 101 of the hob 10. A grease filter unit 116 is introduced into the air inlet opening 113 or the cut-out 102. Grease filter elements (not shown) are provided on the sides of the grease filter unit 116. Noise filter elements 3 are arranged outwardly offset in respect of the grease filter unit 116, which, in the embodiment shown, lie parallel to the grease filters and are held in each case in a filter receptacle 115. In the embodiment shown, the filter receptacle 115 is formed by a frame, which is open toward the filter receptacle 115, through which air can pass. In the embodiment shown, the filter receptacle 115 and the noise filter element 3 provided therein can be passed through in the horizontal direction.

[0051] The appliance housing 110 has an air outlet opening 114, which, in the embodiment shown, is formed by an air outlet of the fan housing 112, and which is disposed in the rear side of the fume extraction device 11.

[0052] The air duct 2 is connected to the air outlet opening 114. In the embodiment shown in FIG. 1, the air duct 2 consists of a duct element 20 which represents a straight duct element 20. The free end of the air duct 2 is introduced into an opening in the room wall R.

[0053] FIGS. 2 and 3 show the fume extraction device 11 according to FIG. 1 in a perspective view. Contrary to FIG. 1, the alignment of the cut-out 102 is shown here in the depth direction of the cover plate 101 of the hob 10. This is the preferred alignment of the cut-out 102. The further elements, grease filter unit (not shown in FIG. 2), filter receptacle 115 and noise filter elements 3, therefore also extend in the depth direction.

[0054] FIGS. 2 and 3 show steps of the assembly of the fume extraction device 11. In particular, the introduction of the noise filter elements 3, 3′ is shown in FIGS. 2 and 3. With the embodiment shown, two noise filter elements 3, 3′ are provided for each filter receptacle 115. The noise filter elements 3 and 3′ here have an identical design.

[0055] For instance, the noise filter element 3, 3′ can have the design shown in FIGS. 4 and 5. Here each noise filter element 3 has a cuboid shape. The noise filter element 3 has in particular a frame 31, in which a pleated mat 31 made from filter material, in particular PTE is held. The noise filter element 3 has a length which is greater than the width of the noise filter element 3. The dimension in the direction in which the noise filter element 3 can be passed through is referred to as the depth of the noise filter element 3. In FIG. 5, the depth of the noise filter element is therefore the dimension which is directed into the image plane.

[0056] The noise filter element 3 has a strap 32, in each case, on the side walls which are also referred to as end walls. The straps 32 project beyond the frame 31.

[0057] As FIG. 2 shows, in a first step two noise filter elements 3, which in the assembled state represent the front noise filter elements 3, are introduced through the cut-out 102 in the cover plate 101 into the interior of the fume extraction device 11. The noise filter elements 3 are aligned here so that their lengths are in the longitudinal direction of the cut-out 102. Once below the cut-out 102, the left noise filter element 3 is moved to the left and the right noise filter element 3 is moved to the right. In this way the noise filter elements 3 are introduced into the filter receptacles 115. The noise filter elements 3 are then moved forward into the filter receptacles 115. These movements are indicated in FIG. 2 by block arrows. With the front noise filter elements 3, in the position positioned in the front region of the filter receptacles 115, two further noise filter elements 3′ are then introduced into the fume extraction device 11 through the cut-out 102. Since these noise filter elements 3′ are moved through the cut-out 102 into the interior of the fume extraction device 11, these are moved outwards, as indicated schematically in FIG. 3 by the block arrows.

[0058] In the assembled state, two noise filter elements 3, 3′ are therefore disposed in each of the filter receptacles 115. Here the noise filter elements 3, 3′ rest against one another with an endface. The straps 32 (not visible in FIGS. 2 and 3) project here in the direction of the center of the cut-out 102 beyond the noise filter elements 3, 3′. In this way, the straps 32 can also be accessed by the user after introducing the noise filter elements 3, 3′ into the filter receptacle 155 by engaging in the cut-out 102 and the noise filter elements 3, 3′ can be removed from the filter receptacle 115.

[0059] FIG. 6 shows an embodiment of an assembly kit 5, which can be provided for a fume extraction device 11. The assembly kit 5 here comprises four noise filter elements 3, 3′ and an air duct 2 in the form of a straight duct element 20. A sealing strip 25, which runs around the outer periphery of the duct element 20 and is adhered hereto, is shown at one end of the duct element 20. This is shown schematically in FIG. 6. After attachment, the sealing strip 25 is preferably disposed at a distance, for instance 5 mm, from the end of the duct element 20. This is shown in FIG. 7.

[0060] FIG. 8 shows the rear view of the fume extraction device 1 according to FIGS. 1 to 3. The air outlet opening 114 can be seen in the rear side of the fume extraction device 11. The duct element 20 with the sealing strip 25 is inserted into this air outlet opening 114. This is shown in FIG. 8 by the block arrow.

[0061] As described above, with the present invention a fume extraction device 11, which is equipped for the air recirculation mode, can be easily equipped for the exhaust air mode.

[0062] FIGS. 9 and 10 show a fume extraction device 11 which is equipped for the air recirculation mode. The fume extraction device 11 for the air recirculation mode differs from the inventive or inventively achievable fume extraction device 11 for the exhaust air mode in that the air duct 2 has a different shape and that odor filter elements (not visible) are introduced into the filter supports instead of the noise filter elements.

[0063] The air duct 2 for the air recirculation mode can be seen in FIGS. 9 and 10. This consists of a flat duct element 20, which is introduced into the air outlet opening 114 of the fume extraction device 11. Moreover, the air duct 2 has a first curved duct element 21, which can also be referred to as entrance curve of the air duct 2. The air flow can be deflected from the horizontal into the vertical by way of this curved duct element 21. A further duct element 22, which represents a straight duct element, connects with the entrance curve. Therefore air extends from the entrance curve into the vertical part of the air duct 2. A further curved duct element 23, which can also be referred to as exit curve, connects to the vertical part. Air therefore extends from the vertical part into the exit curve, in which the air flow is deflected forward from the vertical into the horizontal. The air extends from the entrance curve into a diffusor 24. Therefore in the air recirculation mode of the fume extraction device 11, the air can therefore be output in the plinth air gap between a base 41 of the kitchen cabinet 41 and the kitchen floor by way of the diffusor 24. The plinth air gap is produced by the feet 42 of the kitchen cabinet 4.

[0064] Such a fume extraction device for the air recirculation mode can be easily converted into a fume extraction device for the exhaust air mode by using the inventive assembly kit, without structural measures having to be performed on the fume extraction device itself, in particular the appliance housing.

LIST OF REFERENCE CHARACTERS

[0065] 1 combination unit [0066] 10 hob [0067] 101 cover plate [0068] 102 cut-out [0069] 11 fume extraction device [0070] 110 appliance housing [0071] 112 fan housing [0072] 113 air inlet opening [0073] 114 air outlet opening [0074] 115 filter receptacle [0075] 116 grease filter unit [0076] 2 air duct [0077] 20 straight duct element [0078] 21 curved duct element [0079] 22 straight duct element [0080] 23 curved duct element [0081] 24 diffusor [0082] 25 sealing strip [0083] 3, 3′ noise filter element [0084] 30 frame [0085] 31 mat [0086] 32 strap [0087] 4 kitchen furniture [0088] 40 worktop [0089] 41 base [0090] 42 foot [0091] 5 assembly kit [0092] R room wall