EP3653940B1 - Extractor hood - Google Patents
Extractor hood Download PDFInfo
- Publication number
- EP3653940B1 EP3653940B1 EP19208672.6A EP19208672A EP3653940B1 EP 3653940 B1 EP3653940 B1 EP 3653940B1 EP 19208672 A EP19208672 A EP 19208672A EP 3653940 B1 EP3653940 B1 EP 3653940B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- fan unit
- extractor hood
- unit
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004519 grease Substances 0.000 claims description 18
- 230000003134 recirculating effect Effects 0.000 claims 1
- 235000019645 odor Nutrition 0.000 description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2035—Arrangement or mounting of filters
Definitions
- Extractor hoods are used to remove impurities from fumes and vapors that arise during cooking.
- the extractor hood usually has a fan, by means of which air is sucked into the extractor hood and is cleaned by means of a grease filter. The air cleaned in the extractor hood is then led out of the room through a wall opening via an outlet.
- Such extractor hoods are also known as exhaust hoods.
- extractor hoods are known, which are so-called recirculation hoods.
- An odor filter is provided in addition to a grease filter. The air, which has been freed from impurities, is passed through the odor filter before or after passing through the fan, where it is freed of odors. The air cleaned in this way is returned through an air outlet from the extractor hood into the room in which the extractor hood is operated, in particular the kitchen.
- an extractor hood is known, with a housing having a supply air and an exhaust air opening, in which a filter and a fan are arranged for generating an air flow which at least partially forms a circulating air circuit.
- a second filter is arranged, which is connected downstream of a second fan in the direction of flow.
- an extractor hood with a vortex generator which draws the air into the extraction hood by generating an at least substantially circular, cyclonic, vortex-shaped or spiral movement.
- a filter is placed on top of the vortex generator.
- Another fan is arranged above the vortex generator. If the extractor hood is designed as a recirculation hood, an activated carbon filter is also provided.
- an extractor hood whose underside of the hood has the shape of a roof with two undersides of roof halves in a central area extend from a lower roof ridge section obliquely downward outward in the hood transverse direction away from one another.
- a fan can be housed in each of the two halves of the roof or just in one exhaust pipe.
- an extraction device for sucking off steam and / or gas from a work area with an inlet open to the work area, with a discharge channel that connects the inlet to at least one outlet, and with a fan arranged in the discharge channel.
- a particle filter which is arranged at a distance from the odor filter, can be provided in the discharge channel.
- the DE202013009247U1 an extractor hood described, which consists of a box body that is suspended from the ceiling and is flowed through in the vertical direction.
- a suction unit is arranged in the box body and has several axial fans adjacent to one another.
- the extractor hood also has expanded metal as a grease filter and a layer of activated carbon filter as an odor filter.
- This extractor hood has the disadvantage that, since axial fans are very unstable in pressure, only very open filter media and only a few layers of the filter material can be used. A lower number of layers in the expanded metal filters and thinner, large-meshed activated carbon filters lead to poor filter performance of the extractor hood.
- an extractor hood which is a recirculation hood, the extractor hood at least two having at times spaced apart blower units, in each of which at least one blower is provided and which are arranged one above the other, wherein the upper blower unit has at least one odor filter and wherein the lower blower unit has at least one grease filter.
- the extractor hood is characterized in that the two fan units are movably connected to one another via connecting elements belonging to the extractor hood and can be moved relative to one another.
- An extractor hood is referred to as a recirculation hood, which can be operated at least temporarily in recirculation mode.
- the operation of the extractor hood is referred to as recirculation mode, in which contaminated air, in particular fumes and vapors, is sucked out of a room, in particular a kitchen, and is released back into this room after cleaning in the extractor hood.
- the air in the recirculation hood is freed from impurities such as grease and liquids as well as from odors.
- the extractor hood according to the invention has at least two fan units which are at least temporarily spaced apart from one another.
- a structural unit is referred to here as a blower unit which is separate from the further blower unit.
- a fan is provided in each fan unit.
- the fan units represent, in particular, functional units.
- the fan units preferably have a housing in which the fan is arranged.
- the housing can be a cuboid housing with an air inlet and an air outlet.
- the housing can represent a frame that is open at the top and bottom.
- the fan units are at least temporarily spaced apart from one another.
- the fan units are movably connected to one another, so that the distance between the fan units can be changed.
- the distance between the fan units is preferably open to the sides.
- the fan units are arranged one above the other.
- the fan units lie one above the other in the vertical direction.
- the upper fan unit has at least one odor filter.
- the odor filter can be in the upper blower unit in the direction of flow before or after Fan of the upper fan unit can be arranged.
- the odor filter can be an activated carbon filter, for example.
- the lower fan unit has at least one grease filter. The grease filter is preferably arranged upstream of the fan of the lower fan unit in the direction of flow.
- the fan units and in particular the fans can be designed according to the requirements that exist in different areas. In this way, the development of noise can be minimized and, nevertheless, sufficient filter efficiency can be achieved. Since the fan units are also spaced apart from one another, the visual appearance of the extractor hood can be improved. In particular, the user can look through the distance between the upper and lower fan units and the extractor hood appears much slimmer. In addition, due to the gap that is open on the sides, further air can also be sucked in from the room into the upper fan unit.
- the two fan units are movably connected to one another via connecting elements.
- the fan units are movably connected to one another in such a way that the fan units can be moved towards and away from one another.
- the connecting elements can be telescopic rods, for example.
- the connecting elements can also be steel cables, the length of which between the fan units and thus the distance between the fan units can be adjusted. The adjustment of the distance, that is to say lowering the lower fan unit and pulling up the lower fan unit, can be done manually.
- the fan units can be moved relative to one another.
- the method is preferably carried out by means of a motor.
- the method can be carried out by means of an electric motor or hydraulics. This allows the fan units to be moved automatically. For example, when the extractor hood is put into operation, that is to say when the extractor hood is switched on, the lower fan unit can be moved downwards.
- the fan units are movably connected to one another, on the one hand the distance between the fan units can be adjusted. On the other hand, this also allows the distance between a hob, which is arranged under the extractor hood, and the lower fan unit to be set in a targeted manner.
- the vapor capture rate can be increased by reducing the distance between the hob and the lower fan unit. Since at least one grease filter is provided in the lower fan unit, the filter efficiency in terms of filtering out impurities such as grease and liquids can be increased even with a lower delivery volume of the fan of the lower fan unit.
- the fan of the upper fan unit is preferably a radial fan.
- the fan, which is also referred to below as a fan, of the upper fan unit is therefore a radial fan.
- a radial fan compared to an axial fan, a higher pressure build-up can be achieved in the upper housing unit even with a smaller size of the fan, thus ensuring reliable suction of air.
- filter elements can also be used in the upper blower unit, which either have a higher number of layers, or whose material has a lower air permeability. This can further increase the filter efficiency.
- the at least one fan of the lower fan unit which can also be referred to as a fan, is an axial fan.
- the use of one or more axial fans in the lower fan unit is possible with the present invention, since the lower fan unit is at a small distance from the place where the fumes and vapors are generated, in particular the hob. Thus, a good filter efficiency can be achieved.
- the required overall height of the lower fan unit can be minimized.
- the operating noise is reduced without any loss of filter efficiency.
- Several axial fans are preferably provided in the lower fan unit.
- the axes of rotation of the axial fans are preferably adjacent to one another in the horizontal and the axes of rotation of the axial fans are in the vertical.
- the axes of rotation of the axial fans each have an inclined position from the vertical. In this way, the direction of discharge from the lower fan unit to the upper fan unit can be optimized.
- the lower fan unit comprises at least one air guiding element for directing the air flow onto the upper fan unit.
- the air guiding element thus guides the air flow out of the lower fan unit in the direction which is directed towards the upper fan unit.
- the air flow that is generated by the fan of the lower fan unit is directed in such a way that it is directed towards an air inlet of the upper fan unit when it exits the lower fan unit. This further reduces the requirements placed on the fan of the upper fan unit and yet ensures reliable cleaning of the air in the upper fan unit.
- the at least one fan of the upper fan unit and the at least one fan of the lower fan unit can be controlled together.
- the power electronics for the two fan units can be accommodated in one of the fan units.
- each of the fan units it is also possible for each of the fan units to have its own power electronics, which are then preferably connected to a common control unit. What is understood here as being controllable together is that when one of the fans is activated, the other fan is also activated. The fan units then work synchronously.
- the at least one fan of the upper fan unit and the at least one fan of the lower fan unit can be controlled separately.
- the power electronics for the two fan units can be accommodated in one of the fan units and connected to the other fan unit.
- each of the fan units has its own power electronics.
- the two fan units can be activated separately from one another and / or operated at different operating levels. In this way, different filter performances with regard to odor or particles / fat can be achieved. If, for example, after the end of a cooking process, the air should continue to be freed of odors for a certain time, the upper fan unit can be operated while the lower fan unit is switched off. Separate operation of the two fan units is possible with the extractor hood according to the invention, since the fan units are spaced apart and air can thus be sucked into the upper fan unit without the air having to flow through the lower fan unit.
- the upper blower unit has an air inlet in the underside and an air outlet on at least some of the sides of the upper blower unit.
- the air inlet can be formed through the entire underside of the upper fan unit.
- an air inlet opening which is smaller than the size of the underside can be made in the underside of a housing of the upper blower unit.
- the air outlet can extend over the entire circumference of the upper fan unit.
- an air outlet opening can be made on one or more sides of a housing.
- the outlet can also be provided on the top of the upper fan unit.
- the upper fan unit is arranged at a distance from a ceiling of the room in which the extractor hood is operated.
- the upper fan unit has a fastening device on the top for fastening to a room ceiling.
- the fastening device is preferably a fastening device for fastening the upper fan unit directly to the ceiling of the room, that is to say that the upper fan unit rests directly on the ceiling after fastening.
- the fastening device can for example be a rail.
- the height of the lower fan unit is less than the height of the upper fan unit.
- the lower height is possible because, for example, one or more axial fans can be used as fans in the lower fan unit. Due to the lower height, the lower blower unit also has a lower weight, as a result of which the demands on the connecting elements are reduced.
- a method of the lower fan unit compared to the upper fan unit is also simplified. In particular, a smaller motor, that is to say a motor with a lower power, can be used.
- the lower fan unit has an air inlet on the underside and an air outlet on the upper side.
- the air inlet and the air outlet can each represent the entire bottom and top of the lower fan unit.
- the housing of the lower fan unit can represent a frame.
- FIG. 1 a schematic representation of an embodiment of the extractor hood 1 according to the invention is shown.
- the extractor hood 1 consists of a lower fan unit 10 and an upper fan unit 11.
- the upper one Fan unit 11 is attached to a room ceiling D. In the embodiment shown, the top of the upper blower unit 11 rests against the ceiling D of the room. Below the upper fan unit 11, the lower fan unit 10 is arranged at a distance.
- the lower fan unit 10 is fastened to the upper fan unit 11 via connecting elements 12.
- the connecting elements 12 represent ropes, for example.
- the lower fan unit 10 has a lower height than the upper fan unit 11.
- the width of the lower and upper fan units 10, 11 is the same in the embodiment shown.
- the depth (not visible) of the lower and upper fan units 10, 11 is also the same. However, it is also within the scope of the invention that the width and depth of the lower fan unit 10 deviate from the width and depth of the upper fan unit 11 and, in particular, are greater.
- the lower fan unit 10 has a housing 100, which represents a frame.
- Filter elements 102 are provided in the housing 100.
- the filter elements 102 represent grease filter elements 102.
- the filter elements 102 are arranged on the underside of the lower blower unit 10 in the housing 100.
- the filter elements 102 can, for example, be a filter cassette in which expanded metal layers are received.
- the grease filter 102 is an electrostatic filter.
- a fan 101 is arranged in the housing 100 of the lower fan unit 10.
- the fan 101 of the lower fan unit 10 is formed here by a plurality of axial fans which are arranged adjacent to one another.
- the fan 101 is located downstream of the grease filter 102 in the direction of flow.
- the fan 101 in the lower fan unit 10 is located above the grease filter 102.
- the top of the housing 100 can be open and thus the entire top can form an air outlet.
- an air outlet opening or a plurality of air outlet openings is made in the top of the lower blower unit 10.
- Air guiding element (not shown) is provided through which the air flow is directed in the direction of the upper fan unit 11.
- the upper blower unit 11 comprises a housing 110 which has a box shape.
- An air inlet (not shown) is introduced into the underside of the housing 110.
- the air inlet may cover the entire underside of the fan or may represent one or more openings in the bottom of the housing 110.
- Air outlets are provided in the sides of the housing 110 of the upper blower unit 11. These can extend over the entire circumference of the housing 110.
- a fan 111 is accommodated in the upper fan unit 11.
- the fan 111 is a radial fan in order to achieve a higher pressure build-up.
- the fan 111 sucks in the directed airflow of the lower fan unit 10 and the air enters the upper fan unit 11 via the air inlet. The air is then released radially outward via the fan 111.
- Odor filters 112 are arranged in the upper blower unit 11. In the embodiment shown, these odor filters 112 are arranged on the lateral edges of the housing 110.
- the odor filters 112 preferably cover the air outlet or outlets that are provided in the housing 110.
- the odor filter 112 can consist of activated carbon. Alternatively, other combinations with UV light or plasma generators can also be used as odor filters 112.
- odor filters 112 can be provided in the upper blower unit 11. After passing through the fan 111, the air can be supplied to the odor filter 112 and cleaned there before the cleaned air is released to the environment in the room in which the extractor hood 1 is operated via the air outlet (s).
- Further device components such as the power electronics are preferably located in the upper fan unit 11 and are additionally connected to the lower fan unit 10.
- the lower fan unit 10 can also have lighting and operating elements (not shown), for example.
- the two fan units 10, 11 can work synchronously if both filter functions are required with the same intensity. Depending on the required filter performance for Odor or particles / fat can also be used at different operating stages of the fan units 10, 11.
- Another possibility for operating the extractor hood 1 is, for example, that only the upper fan unit 11 or only the lower fan unit 10 is activated. If, for example, the cooking process has ended, the lower fan unit 10 is no longer required and can reduce or stop operation. Open dishes and cookware, however, continue to generate odors, so that the upper blower unit 11 is still required to remove odors from the room air.
- the lower fan unit 10 and the upper fan unit 11 can be controlled by manual input by the user or automatically by appropriate sensors.
- the upper blower unit 11 can be equipped with a sensor, in particular a VOC sensor, and the lower blower unit 10 can be equipped with a particle sensor.
- an extractor hood which can also be referred to as an extractor hood, is created especially for recirculation mode. Due to the arrangement and operating parameters, several functional improvements compared to previous device concepts can be achieved:
- the present invention allows in particular a narrow and small design of the part of the extractor hood hanging in the room, in particular the lower fan unit. This means that there is no disruptive spatial barrier for modern eat-in kitchens.
- the overall height can be reduced in particular by separating the filter functions into two functional units.
- the weight of the lower fan unit can be reduced compared to known range hoods. This great weight reduction is particularly advantageous for embodiments in which the lower fan unit can be moved in height. Thanks to the compact and lightweight design of the lower fan unit, a much smaller and cheaper lift function can also be implemented. A movable lower fan unit can be implemented cost-effectively because, for example, a smaller motor can be used.
- the present invention offers an optimal combination of fan and grease filter as well as fan and odor filter, whereby a better filter performance compared to previous combination devices can be achieved.
- the odor filter is spatially distanced from the user, a further reduction in operating noise can be achieved.
Description
Dunstabzugshauben werden verwendet, um Dünste und Wrasen, die beim Kochen entstehen, von Verunreinigungen zu befreien.Extractor hoods are used to remove impurities from fumes and vapors that arise during cooking.
Hierzu weist die Dunstabzugshaube in der Regel ein Gebläse auf, mittels dessen Luft in die Dunstabzugshaube eingesaugt wird und über Fettfilter gereinigt wird. Über einen Auslass wird die in der Dunstabzugshaube gereinigte Luft dann über einen Mauerdurchbruch aus dem Raum herausgeführt. Solche Dunstabzugshauben werden auch als Ablufthauben bezeichnet.For this purpose, the extractor hood usually has a fan, by means of which air is sucked into the extractor hood and is cleaned by means of a grease filter. The air cleaned in the extractor hood is then led out of the room through a wall opening via an outlet. Such extractor hoods are also known as exhaust hoods.
Zudem sind Dunstabzugshauben bekannt, die sogenannte Umlufthauben darstellen. Hierbei ist zusätzlich zu einem Fettfilter ein Geruchsfilter vorgesehen. Die von Verunreinigungen befreite Luft wird vor oder nach dem Passieren des Gebläses durch den Geruchsfilter geführt und dort von Gerüchen befreit. Die so gereinigte Luft wird durch einen Luftauslass aus der Dunstabzugshaube in den Raum zurückgeführt, in dem die Dunstabzugshaube betrieben wird, insbesondere die Küche.In addition, extractor hoods are known, which are so-called recirculation hoods. An odor filter is provided in addition to a grease filter. The air, which has been freed from impurities, is passed through the odor filter before or after passing through the fan, where it is freed of odors. The air cleaned in this way is returned through an air outlet from the extractor hood into the room in which the extractor hood is operated, in particular the kitchen.
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Insbesondere bei Dunstabzugshauben, die an der Raumdecke befestigt sind, ist der Abstand zwischen dem Kochfeld, auf dem die Dünste und Wrasen entstehen, und der Dunstabzugshaube groß. Daher ist es erforderlich das Gebläse groß auszulegen, um ein zuverlässiges Absaugen der Dünste und Wrasen zu gewährleisten.Particularly in the case of extractor hoods that are attached to the ceiling, the distance between the hob, on which the vapors and vapors are generated, and the extractor hood is large. It is therefore necessary to make the fan large in order to ensure reliable extraction of the vapors and vapors.
Zudem ist in der
Diese Dunstabzugshaube weist den Nachteil auf, dass, da axiale Lüfter sehr druckinstabil sind, nur sehr offene Filtermedien und nur wenige Lagenzahlen des Filtermaterials verwendet werden können. Geringere Lagenanzahl bei den Streckmetallfiltern und dünnere großmaschiger Aktivkohlefilter führen zu einer schlechten Filterleistung der Dunstabzugshaube.This extractor hood has the disadvantage that, since axial fans are very unstable in pressure, only very open filter media and only a few layers of the filter material can be used. A lower number of layers in the expanded metal filters and thinner, large-meshed activated carbon filters lead to poor filter performance of the extractor hood.
Es ist somit Aufgabe der vorliegenden Erfindung eine Dunstabzugshaube zu schaffen, die bei geringem Betriebsgeräusch eine gute Filterleistung liefert.It is therefore the object of the present invention to create an extractor hood which delivers good filter performance with low operating noise.
Die Aufgabe wird erfindungsgemäß gelöst durch eine Dunstabzugshaube, die eine Umlufthaube darstellt, wobei die Dunstabzugshaube mindestens zwei zumindest zeitweise voneinander beabstandete Gebläseeinheiten aufweist, in denen jeweils mindestens ein Gebläse vorgesehen ist und die übereinander angeordnet sind, wobei die obere Gebläseeinheit mindestens einen Geruchsfilter aufweist und wobei die untere Gebläseeinheit zumindest einen Fettfilter aufweist. Die Dunstabzugshaube ist dadurch gekennzeichnet, dass die beiden Gebläseeinheiten über zur Dunstabzugshaube gehörende Verbindungselemente beweglich miteinander verbunden sind und zueinander verfahrbar sind.
Als Umlufthaube wird eine Dunstabzugshaube bezeichnet, die zumindest zeitweise im Umluftbetrieb betrieben werden kann. Als Umluftbetrieb wird der Betrieb der Dunstabzugshaube bezeichnet, in dem verunreinigte Luft, insbesondere Dünste und Wrasen aus einem Raum, insbesondere einer Küche abgesaugt wird, und nach der Reinigung in der Dunstabzugshaube wieder in diesen Raum abgegeben wird. Die Luft wird in der Umlufthaube dabei sowohl von Verunreinigungen, wie Fett und Flüssigkeiten als auch von Gerüchen befreit.The object is achieved according to the invention by an extractor hood which is a recirculation hood, the extractor hood at least two having at times spaced apart blower units, in each of which at least one blower is provided and which are arranged one above the other, wherein the upper blower unit has at least one odor filter and wherein the lower blower unit has at least one grease filter. The extractor hood is characterized in that the two fan units are movably connected to one another via connecting elements belonging to the extractor hood and can be moved relative to one another.
An extractor hood is referred to as a recirculation hood, which can be operated at least temporarily in recirculation mode. The operation of the extractor hood is referred to as recirculation mode, in which contaminated air, in particular fumes and vapors, is sucked out of a room, in particular a kitchen, and is released back into this room after cleaning in the extractor hood. The air in the recirculation hood is freed from impurities such as grease and liquids as well as from odors.
Die erfindungsgemäße Dunstabzugshaube weist mindestens zwei zumindest zeitweise voneinander beabstandete Gebläseeinheiten auf. Als Gebläseeinheit wird hierbei eine Baueinheit bezeichnet, die zu der weiteren Gebläseeinheit separat ist. In jeder Gebläseeinheit ist ein Gebläse vorgesehen. Die Gebläseeinheiten stellen insbesondere Funktionseinheiten dar. Die Gebläseeinheiten weisen vorzugsweise ein Gehäuse auf, in dem das Gebläse angeordnet ist. Das Gehäuse kann ein quaderförmiges Gehäuse mit Lufteinlass und Luftauslass sein. Gemäß einer Ausführungsform kann das Gehäuse einen Rahmen darstellen, der nach oben und unten offen ist. Die Gebläseeinheiten liegen zumindest zeitweise voneinander beanstandet. Erfindungsgemäß sind die Gebläseeinheiten miteinander beweglich verbunden, so dass der Abstand zwischen den Gebläseeinheiten geändert werden kann. Der zwischen den Gebläseeinheiten bestehende Abstand ist vorzugsweise zu den Seiten offen. Insbesondere wird dieser Abstand nicht durch Seitenwände abgedeckt.
Die Gebläseeinheiten sind erfindungsgemäß übereinander angeordnet. Insbesondere liegen die Gebläseeinheiten in vertikaler Richtung übereinander.
Die obere Gebläseeinheit weist erfindungsgemäß mindestens einen Geruchsfilter auf. Der Geruchsfilter kann in der oberen Gebläseeinheit in Strömungsrichtung vor oder nach dem Gebläse der oberen Gebläseeinheit angeordnet sein. Der Geruchsfilter kann beispielsweise ein Aktivkohlefilter sein. Die untere Gebläseeinheit weist mindesten einen Fettfilter auf. Der Fettfilter ist hierbei vorzugsweise in Strömungsrichtung vor dem Gebläse der unteren Gebläseeinheit angeordnet.The extractor hood according to the invention has at least two fan units which are at least temporarily spaced apart from one another. A structural unit is referred to here as a blower unit which is separate from the further blower unit. A fan is provided in each fan unit. The fan units represent, in particular, functional units. The fan units preferably have a housing in which the fan is arranged. The housing can be a cuboid housing with an air inlet and an air outlet. According to one embodiment, the housing can represent a frame that is open at the top and bottom. The fan units are at least temporarily spaced apart from one another. According to the invention, the fan units are movably connected to one another, so that the distance between the fan units can be changed. The distance between the fan units is preferably open to the sides. In particular, this distance is not covered by side walls.
According to the invention, the fan units are arranged one above the other. In particular, the fan units lie one above the other in the vertical direction.
According to the invention, the upper fan unit has at least one odor filter. The odor filter can be in the upper blower unit in the direction of flow before or after Fan of the upper fan unit can be arranged. The odor filter can be an activated carbon filter, for example. The lower fan unit has at least one grease filter. The grease filter is preferably arranged upstream of the fan of the lower fan unit in the direction of flow.
Indem erfindungsgemäß zwei Gebläseeinheiten vorgesehen sind, können die Gebläseeinheiten und insbesondere die Gebläse entsprechend den Anforderungen, die in unterschiedlichen Bereichen bestehen, ausgelegt werden. Somit kann die Geräuschentwicklung minimiert werden und dennoch eine ausreichende Filtereffizienz erzielt werden. Indem die Gebläseeinheiten zudem zueinander beabstandet sind, kann das optische Erscheinungsbild der Dunstabzugshaube verbessert werden. Insbesondere kann der Benutzer durch den Abstand zwischen oberer und unterer Gebläseeinheit hindurchblicken und die Dunstabzugshaube erscheint damit wesentlich schlanker. Zudem kann durch den Abstand, der zu den Seiten offen ist, auch weitere Luft aus dem Raum in die obere Gebläseeinheit eingesaugt werden.Since two fan units are provided according to the invention, the fan units and in particular the fans can be designed according to the requirements that exist in different areas. In this way, the development of noise can be minimized and, nevertheless, sufficient filter efficiency can be achieved. Since the fan units are also spaced apart from one another, the visual appearance of the extractor hood can be improved. In particular, the user can look through the distance between the upper and lower fan units and the extractor hood appears much slimmer. In addition, due to the gap that is open on the sides, further air can also be sucked in from the room into the upper fan unit.
Erfindungsgemäß sind die beiden Gebläseeinheiten über Verbindungselemente beweglich miteinander verbunden. Die Gebläseeinheiten sind insbesondere so beweglich miteinander verbunden, dass die Gebläseeinheiten aufeinander zu und voneinander weg bewegt werden können. Die Verbindungselemente können hierzu beispielsweise teleskopierbare Stangen sein. Alternativ können die Verbindungselemente aber auch Stahlseile sein, deren Längenabschnitt zwischen den Gebläseeinheiten und damit der Abstand zwischen den Gebläseeinheiten eingestellt werden können. Die Einstellung des Abstandes, das heißt das Herunterlassen der unteren Gebläseeinheit und das Hochziehen der unteren Gebläseeinheit kann manuell erfolgen.According to the invention, the two fan units are movably connected to one another via connecting elements. In particular, the fan units are movably connected to one another in such a way that the fan units can be moved towards and away from one another. For this purpose, the connecting elements can be telescopic rods, for example. Alternatively, the connecting elements can also be steel cables, the length of which between the fan units and thus the distance between the fan units can be adjusted. The adjustment of the distance, that is to say lowering the lower fan unit and pulling up the lower fan unit, can be done manually.
Erfindungsgemäß sind die Gebläseeinheiten zueinander verfahrbar. Das Verfahren erfolgt vorzugsweise mittels Motors. Insbesondere kann das Verfahren mittels eines Elektromotors oder einer Hydraulik erfolgen. Hierdurch kann das Verfahren der Gebläseeinheiten automatisch durchgeführt werden. Beispielsweise kann bei Inbetriebnahme der Dunstabzugshaube, das heißt beim Anschalten der Dunstabzugshaube, die untere Gebläseeinheit nach unten verfahren werden.According to the invention, the fan units can be moved relative to one another. The method is preferably carried out by means of a motor. In particular, the method can be carried out by means of an electric motor or hydraulics. This allows the fan units to be moved automatically. For example, when the extractor hood is put into operation, that is to say when the extractor hood is switched on, the lower fan unit can be moved downwards.
Indem die Gebläseeinheiten beweglich miteinander verbunden sind, kann zum einen der Abstand zwischen den Gebläseeinheiten eingestellt werden. Zum anderen kann hierdurch aber auch der Abstand zwischen einem Kochfeld, das unter der Dunstabzugshaube angeordnet ist und der unteren Gebläseeinheit gezielt eingestellt werden. Durch eine Verringerung des Abstandes zwischen Kochfeld und unterer Gebläseeinheit kann die Wrasenfangrate erhöht werden. Da in der unteren Gebläseeinheit mindestens ein Fettfilter vorgesehen ist, kann damit die Filtereffizienz bezüglich der Ausfilterung von Verunreinigungen, wie Fett und Flüssigkeiten auch bei einem geringeren Fördervolumen des Gebläses der unteren Gebläseeinheit gesteigert werden.Since the fan units are movably connected to one another, on the one hand the distance between the fan units can be adjusted. On the other hand, this also allows the distance between a hob, which is arranged under the extractor hood, and the lower fan unit to be set in a targeted manner. The vapor capture rate can be increased by reducing the distance between the hob and the lower fan unit. Since at least one grease filter is provided in the lower fan unit, the filter efficiency in terms of filtering out impurities such as grease and liquids can be increased even with a lower delivery volume of the fan of the lower fan unit.
Vorzugsweise sind in der oberen Gebläseeinheit und der unteren Gebläseeinheit unterschiedliche Lüfterarten aufgenommen.Different types of fans are preferably accommodated in the upper fan unit and the lower fan unit.
Die für eine Umlufthaube benötigten Geruchsfilter erzeugen in der Regel einen großen Druckverlust. Damit dieser durch das Gebläse der oberen Gebläseeinheit ausgeglichen werden kann, ist das Gebläse der oberen Gebläseeinheit vorzugsweise ein Radiallüfter. Gemäß einer Ausführungsform ist das Gebläse, das im Folgenden auch als Lüfter bezeichnet wird, der oberen Gebläseeinheit daher ein Radiallüfter. Durch einen Radiallüfter kann im Vergleich zu einem Axiallüfter bereits bei kleinerer Größe des Lüfters ein höherer Druckaufbau in der oberen Gehäuseeinheit erreicht werden und damit ein zuverlässiges Einsaugen von Luft gewährleistet werden. Zudem können durch den höheren Druck, der durch den Radiallüfter erzeugt wird, auch Filterelemente in der oberen Gebläseeinheit verwendet werden, die entweder eine höhere Lagenanzahl aufweisen, oder deren Material eine geringere Luftdurchlässigkeit aufweist. Hierdurch kann die Filtereffizienz weiter gesteigert werden.The odor filters required for a recirculation hood usually generate a large pressure loss. So that this can be compensated for by the fan of the upper fan unit, the fan of the upper fan unit is preferably a radial fan. According to one embodiment, the fan, which is also referred to below as a fan, of the upper fan unit is therefore a radial fan. By means of a radial fan, compared to an axial fan, a higher pressure build-up can be achieved in the upper housing unit even with a smaller size of the fan, thus ensuring reliable suction of air. In addition, due to the higher pressure generated by the radial fan, filter elements can also be used in the upper blower unit, which either have a higher number of layers, or whose material has a lower air permeability. This can further increase the filter efficiency.
Gemäß einer alternativen oder zusätzlichen Ausführungsform ist das mindestens eine Gebläse der unteren Gebläseeinheit, das ebenfalls als Lüfter bezeichnet werden kann, ein Axiallüfter. Die Verwendung eines oder mehrerer Axiallüfter in der unteren Gebläseeinheit ist bei der vorliegenden Erfindung möglich, da die untere Gebläseeinheit einen geringen Abstand zu dem Entstehungsort der Dünste und Wrasen, insbesondere dem Kochfeld aufweist. Somit kann eine gute Filtereffizienz erreicht werden. Zudem kann durch die Verwendung eines Axiallüfters oder mehrerer Axiallüfter die erforderliche Bauhöhe der unteren Gebläseeinheit minimiert werden. Zudem wird durch die Verwendung eines Axiallüfters oder mehrerer Axiallüfter ohne Verlust der Filtereffizienz eine Reduzierung des Betriebsgeräusches erzielt. In der unteren Gebläseeinheit sind vorzugsweise mehrere Axiallüfter vorgesehen sein. Diese liegen vorzugsweise zueinander benachbart in der Horizontalen und die Rotationsachsen der Axiallüfter liegen in der Vertikalen. Es liegt allerdings auch im Rahmen der Erfindung, dass die Rotationsachsen der Axiallüfter jeweils eine aus der Vertikalen geneigte Schrägstellung aufweisen. Hierdurch kann die Ausblasrichtung von der unteren Gebläseeinheit zur oberen Gebläseeinheit optimiert werden.According to an alternative or additional embodiment, the at least one fan of the lower fan unit, which can also be referred to as a fan, is an axial fan. The use of one or more axial fans in the lower fan unit is possible with the present invention, since the lower fan unit is at a small distance from the place where the fumes and vapors are generated, in particular the hob. Thus, a good filter efficiency can be achieved. In addition, by using an axial fan or several axial fans, the required overall height of the lower fan unit can be minimized. In addition, by using one or more axial fans, the operating noise is reduced without any loss of filter efficiency. Several axial fans are preferably provided in the lower fan unit. These are preferably adjacent to one another in the horizontal and the axes of rotation of the axial fans are in the vertical. However, it is also within the scope of the invention that the axes of rotation of the axial fans each have an inclined position from the vertical. In this way, the direction of discharge from the lower fan unit to the upper fan unit can be optimized.
Gemäß einer bevorzugten Ausführungsform umfasst die untere Gebläseeinheit mindestens ein Luftleitelement zum Lenken des Luftstroms auf die obere Gebläseeinheit aufweist. Das Luftleitelement führt den Luftstrom somit aus der unteren Gebläseeinheit in Richtung, die auf die obere Gebläseeinheit gerichtet ist. Insbesondere wird der Luftstrom, der durch das Gebläse der unteren Gebläseeinheit erzeugt wird so gelenkt, dass dieser beim Austreten aus der unteren Gebläseeinheit in Richtung auf einen Lufteinlass der oberen Gebläseeinheit gerichtet ist. Hierdurch wird die Anforderung an das Gebläse der oberen Gebläseeinheit weiter reduziert und dennoch ein zuverlässiges Reinigen der Luft in der oberen Gebläseeinheit gewährleistet.According to a preferred embodiment, the lower fan unit comprises at least one air guiding element for directing the air flow onto the upper fan unit. The air guiding element thus guides the air flow out of the lower fan unit in the direction which is directed towards the upper fan unit. In particular, the air flow that is generated by the fan of the lower fan unit is directed in such a way that it is directed towards an air inlet of the upper fan unit when it exits the lower fan unit. This further reduces the requirements placed on the fan of the upper fan unit and yet ensures reliable cleaning of the air in the upper fan unit.
Gemäß einer Ausführungsform sind das mindestens eine Gebläse der oberen Gebläseeinheit und das mindestens eine Gebläse der unteren Gebläseeinheit gemeinsam ansteuerbar. Bei dieser Ausführungsform kann die Leistungselektronik für die beiden Gebläseeinheiten in einer der Gebläseeinheiten aufgenommen sein. Alternativ ist es aber bei dieser Ausführungsform auch möglich, dass jede der Gebläseeinheiten eine eigene Leistungselektronik aufweist, die dann vorzugsweise mit einer gemeinsamen Steuereinheit verbunden ist. Als gemeinsam ansteuerbar wird hierbei verstanden, dass beim Aktivieren eines der Gebläse auch das andere Gebläse aktiviert wird. Die Gebläseeinheiten arbeiten hierbei dann synchron.According to one embodiment, the at least one fan of the upper fan unit and the at least one fan of the lower fan unit can be controlled together. In this embodiment, the power electronics for the two fan units can be accommodated in one of the fan units. Alternatively it is In this embodiment it is also possible for each of the fan units to have its own power electronics, which are then preferably connected to a common control unit. What is understood here as being controllable together is that when one of the fans is activated, the other fan is also activated. The fan units then work synchronously.
Gemäß einer bevorzugten Ausführungsform ist das mindestens eine Gebläse der oberen Gebläseeinheit und das mindestens eine Gebläse der unteren Gebläseeinheit separat ansteuerbar. Bei dieser Ausführungsform kann die Leistungselektronik für die beiden Gebläseeinheiten in einer der Gebläseeinheiten aufgenommen sein und mit der anderen Gebläseeinheit verbunden sein. Alternativ weist bei dieser Ausführungsform jede der Gebläseeinheiten eine eigene Leistungselektronik auf. Insbesondere können die beiden Gebläseeinheiten separat zueinander aktiviert werden und/oder auf unterschiedlichen Betriebsstufen betrieben werden. Hierdurch können unterschiedliche Filterleistungen hinsichtlich Geruch oder Partikeln/Fett erfüllt werden. Soll beispielsweise nach dem Ende eines Kochvorgangs die Luft für eine gewisse Zeit weiterhin von Gerüchen befreit werden, kann die obere Gebläseeinheit betrieben werden, während die untere Gebläseeinheit ausgeschaltet ist. Das separate Betreiben der beiden Gebläseeinheiten ist bei der erfindungsgemäßen Dunstabzugshaube möglich, da die Gebläseeinheiten zueinander beanstandet angeordnet sind und somit Luft in die obere Gebläseeinheit eingesaugt werden kann, ohne, dass die Luft durch die untere Gebläseeinheit strömen muss.According to a preferred embodiment, the at least one fan of the upper fan unit and the at least one fan of the lower fan unit can be controlled separately. In this embodiment, the power electronics for the two fan units can be accommodated in one of the fan units and connected to the other fan unit. Alternatively, in this embodiment, each of the fan units has its own power electronics. In particular, the two fan units can be activated separately from one another and / or operated at different operating levels. In this way, different filter performances with regard to odor or particles / fat can be achieved. If, for example, after the end of a cooking process, the air should continue to be freed of odors for a certain time, the upper fan unit can be operated while the lower fan unit is switched off. Separate operation of the two fan units is possible with the extractor hood according to the invention, since the fan units are spaced apart and air can thus be sucked into the upper fan unit without the air having to flow through the lower fan unit.
Gemäß einer bevorzugten Ausführungsform weist die obere Gebläseeinheit in der Unterseite einen Lufteinlass auf und an zumindest einem Teil der Seiten der oberen Gebläseeinheit einen Luftauslass auf. Der Lufteinlass kann durch die gesamte Unterseite der oberen Gebläseeinheit gebildet werden. Alternativ kann in der Unterseite eines Gehäuses der oberen Gebläseeinheit eine Lufteinlassöffnung eingebracht sein, die eine geringere Größe als die Größe der Unterseite aufweist. Der Luftauslass kann sich über den gesamten Umfang der oberen Gebläseeinheit erstrecken. Alternativ kann an einer oder mehreren Seiten eines Gehäuses jeweils eine Luftauslassöffnung eingebracht sein. Alternativ kann der Auslass auch an der Oberseite der oberen Gebläseeinheit vorgesehen sein. Bei dieser Ausführungsform ist die obere Gebläseeinheit von einer Raumdecke des Raumes, in dem die Dunstabzugshaube betrieben wird, beabstandet angeordnet. Gemäß einer Ausführungsform weist die obere Gebläseeinheit an der Oberseite eine Befestigungsvorrichtung zur Befestigung an einer Raumdecke auf. Die Befestigungsvorrichtung ist vorzugsweise eine Befestigungsvorrichtung zur Befestigung der oberen Gebläseeinheit unmittelbar an der Raumdecke, das heißt, dass die obere Gebläseeinheit nach der Befestigung unmittelbar an der Raumdecke anliegt. Die Befestigungsvorrichtung kann beispielsweise eine Schiene sein.According to a preferred embodiment, the upper blower unit has an air inlet in the underside and an air outlet on at least some of the sides of the upper blower unit. The air inlet can be formed through the entire underside of the upper fan unit. Alternatively, an air inlet opening which is smaller than the size of the underside can be made in the underside of a housing of the upper blower unit. The air outlet can extend over the entire circumference of the upper fan unit. Alternatively, an air outlet opening can be made on one or more sides of a housing. Alternatively, the outlet can also be provided on the top of the upper fan unit. In this embodiment, the upper fan unit is arranged at a distance from a ceiling of the room in which the extractor hood is operated. According to one embodiment, the upper fan unit has a fastening device on the top for fastening to a room ceiling. The fastening device is preferably a fastening device for fastening the upper fan unit directly to the ceiling of the room, that is to say that the upper fan unit rests directly on the ceiling after fastening. The fastening device can for example be a rail.
Gemäß einer Ausführungsform ist die Höhe der unteren Gebläseeinheit geringer als die Höhe der oberen Gebläseeinheit. Die geringere Höhe ist möglich, da beispielsweise ein oder mehrere Axialgebläse in der unteren Gebläseeinheit als Gebläse verwendet werden können. Durch die geringere Höhe weist die untere Gebläseeinheit auch ein geringeres Gewicht auf, wodurch die Anforderungen an die Verbindungselemente verringert werden. Zudem ist auch ein Verfahren der unteren Gebläseeinheit gegenüber der oberen Gebläseeinheit vereinfacht. Insbesondere kann ein kleinerer Motor, das heißt ein Motor mit geringerer Leistung, verwendet werden.According to one embodiment, the height of the lower fan unit is less than the height of the upper fan unit. The lower height is possible because, for example, one or more axial fans can be used as fans in the lower fan unit. Due to the lower height, the lower blower unit also has a lower weight, as a result of which the demands on the connecting elements are reduced. In addition, a method of the lower fan unit compared to the upper fan unit is also simplified. In particular, a smaller motor, that is to say a motor with a lower power, can be used.
Gemäß einer Ausführungsform weist die untere Gebläseeinheit an der Unterseite einen Lufteinlass und an der Oberseite einen Luftauslass auf. Der Lufteinlass und der Luftauslass können jeweils die gesamte Unterseite und Oberseite der unteren Gebläseeinheit darstellen. In diesem Fall kann das Gehäuse der unteren Gebläseeinheit einen Rahmen darstellen.According to one embodiment, the lower fan unit has an air inlet on the underside and an air outlet on the upper side. The air inlet and the air outlet can each represent the entire bottom and top of the lower fan unit. In this case, the housing of the lower fan unit can represent a frame.
Die vorliegende Erfindung wird im Folgenden erneut unter Bezugnahme auf die beiliegenden Zeichnungen erneut erläutert. Es zeigen:
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Figur 1 : eine schematische Darstellung einer Ausführungsform der erfindungsgemäßen Dunstabzugshaube; und -
Figur 2 : eine schematische Darstellung der Luftströmung bei der Ausführungsform der Dunstabzugshaube nachFigur 1 .
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Figure 1 : a schematic representation of an embodiment of the extractor hood according to the invention; and -
Figure 2 : a schematic representation of the air flow in the embodiment of the extractor hood according toFigure 1 .
In
In der
Die Luft, die durch die Axialgebläse angesaugt wird, strömt durch den Fettfilter 102 und wird nach dem Passieren des Axialgebläses über die Oberseite der unteren Gebläseeinheit 10 ausgegeben. Hierzu kann die Oberseite des Gehäuses 100 offen sein und damit die gesamte Oberseite einen Luftauslass bilden. Alternativ ist in der Oberseite der unteren Gebläseeinheit 10 eine Luftauslassöffnung oder mehrere Luftauslassöffnungen eingebracht. Vorzugsweise ist oberhalb der Axialgebläse ein Luftleitelement (nicht gezeigt) vorgesehen, durch das der Luftstrom in Richtung auf die obere Gebläseeinheit 11 gelenkt wird.The air that is sucked in by the axial fan flows through the
Die obere Gebläseeinheit 11 umfasst in der dargestellten Ausführungsform ein Gehäuse 110, das eine Kastenform aufweist. In der Unterseite des Gehäuses 110 ist ein Lufteinlass (nicht gezeigt) eingebracht. Der Lufteinlass kann die gesamte Unterseite des Gebläses abdecken oder eine oder mehrere Öffnungen in dem Boden des Gehäuses 110 darstellen. In den Seiten des Gehäuses 110 der oberen Gebläseeinheit 11 sind Luftauslässe vorgesehen. Diese können sich über den gesamten Umfang des Gehäuses 110 erstrecken.In the embodiment shown, the
In der oberen Gebläseeinheit 11 ist ein Gebläse 111 aufgenommen. Das Gebläse 111 stellt ein Radialgebläse dar, um einen höheren Druckaufbau zu erreichen. Das Gebläse 111 saugt den gerichteten Luftstrom der unteren Gebläseeinheit 10 an und die Luft tritt über den Lufteinlass in die obere Gebläseeinheit 11 ein. Anschließend wird die Luft über das Gebläse 111 radial nach außen abgeben. In der oberen Gebläseeinheit 11 sind Geruchsfilter 112 angeordnet. Diese Geruchsfilter 112 sind in der gezeigten Ausführungsform an den seitlichen Rändern des Gehäuses 110 angeordnet. Die Geruchsfilter 112 decken dabei vorzugsweise den oder die Luftauslässe ab, die in dem Gehäuse 110 vorgesehen sind. Der Geruchsfilter 112 kann aus Aktivkohle bestehen. Alternativ können auch andere Kombinationen mit UV-Licht oder Plasmaerzeuger als Geruchsfilter 112 verwendet werden. Zudem können in der oberen Gebläseeinheit 11 mehrere Geruchsfilter 112 vorgesehen sein. Die Luft kann nach dem Passieren des Gebläses 111 dem Geruchsfilter 112 zugeführt werden und daran gereinigt werden bevor die gereinigte Luft über den oder die Luftauslässe an die Umgebung in dem Raum, in dem die Dunstabzugshaube 1 betrieben wird, abgegeben wird.A
Weitere Gerätekomponenten (nicht gezeigt) wie beispielsweise die Leistungselektronik befinden sich bevorzugt in der oberen Gebläseeinheit 11 und sind zusätzlich mit der unteren Gebläseeinheit 10 verbunden. Die untere Gebläseeinheit 10 kann zudem beispielsweise auch Beleuchtungs- und Bedienelemente (nicht gezeigt) besitzen.Further device components (not shown) such as the power electronics are preferably located in the
Die beiden Gebläseeinheiten 10, 11 können synchron arbeiten, wenn beide Filterfunktionen in gleicher Intensität benötigt werden. Je nach benötigter Filterleistung für Geruch oder Partikel/Fett können auch unterschiedliche Betriebsstufen der Gebläseeinheiten 10, 11 verwendet werden.The two
Eine weitere Möglichkeit des Betriebs der Dunstabzugshaube 1 ist beispielsweise, dass nur die obere Gebläseeinheit 11 oder nur die untere Gebläseeinheit 10 aktiviert wir. Ist beispielsweise der Kochvorgang beendet, so wird die untere Gebläseeinheit 10 nicht weiter benötigt und kann den Betrieb reduzieren oder beenden. Offene Speisen und Kochgeschirr erzeugen jedoch weiterhin Gerüche, so dass die obere Gebläseeinheit 11 weiter benötigt wird um die Raumluft von Gerüchen zu befreien.Another possibility for operating the extractor hood 1 is, for example, that only the
Die Steuerung der untere Gebläseeinheit 10 und oberen Gebläseeinheit 11 kann durch manuelle Eingabe des Benutzers erfolgen oder durch entsprechende Sensoren automatisch erfolgen. So kann beispielsweise die obere Gebläseeinheit 11 mit einem Sensor, insbesondere einem VOC Sensor, und die untere Gebläseeinheit 10 mit einem Partikelsensor ausgestattet sein.The
Mit der vorliegenden Erfindung wird somit ein Aufbau einer Dunstabzugshaube, die auch als Dunstabzug bezeichnet werden kann, speziell für den Umluftbetrieb geschaffen. Durch die Anordnung und Betriebsparameter können mehrere Funktionsverbesserungen gegenüber bisherigen Gerätekonzepten erreicht werden:
Die vorliegende Erfindung erlaubt insbesondere eine schmale und kleine Bauform des im Raum hängenden Teils der Dunstabzugshaube, insbesondere der unteren Gebläseeinheit. Damit besteht keine störende räumliche Barriere für moderne Wohnküchen Die Verringerung der Bauhöhe ist insbesondere durch die Trennung der Filterfunktionen in zwei Funktionseinheiten realisierbar.With the present invention, a structure of an extractor hood, which can also be referred to as an extractor hood, is created especially for recirculation mode. Due to the arrangement and operating parameters, several functional improvements compared to previous device concepts can be achieved:
The present invention allows in particular a narrow and small design of the part of the extractor hood hanging in the room, in particular the lower fan unit. This means that there is no disruptive spatial barrier for modern eat-in kitchens. The overall height can be reduced in particular by separating the filter functions into two functional units.
Zudem kann das Gewicht der unteren Gebläseeinheit im Vergleich zu bekannten Dunstabzugshauben verringert werden. Diese starke Gewichtsreduktion ist besonders vorteilhaft für Ausführungsformen, bei denen die untere Gebläseeinheit höhenverfahrbar ist. Durch die kompakte und leichte Bauweise der unteren Gebläseeinheit ist eine zudem eine wesentlich kleinere und günstigere Lift-Funktion realisierbar. Eine verfahrbare untere Gebläseeinheit ist kostengünstig realisierbar, da beispielsweise ein kleinerer Motor verwendet werden kann.In addition, the weight of the lower fan unit can be reduced compared to known range hoods. This great weight reduction is particularly advantageous for embodiments in which the lower fan unit can be moved in height. Thanks to the compact and lightweight design of the lower fan unit, a much smaller and cheaper lift function can also be implemented. A movable lower fan unit can be implemented cost-effectively because, for example, a smaller motor can be used.
Weiterhin bietet die vorliegende Erfindung eine optimale Kombination von Gebläse und Fettfilter sowie Gebläse und Geruchsfilter, wodurch eine bessere Filterleistung gegenüber bisherigen Kombinationsgeräten erreicht werden kann.Furthermore, the present invention offers an optimal combination of fan and grease filter as well as fan and odor filter, whereby a better filter performance compared to previous combination devices can be achieved.
Infolge der idealen Gebläse/Filterkombination können diese optimal ausgelegt werden und eine signifikante Geräuschreduzierung während des Betriebs gegenüber aktuellen Umluftgeräten kann erreicht werden. Bei Verwendung eines oder mehrerer Axiallüfter in der unteren Gebläseeinheit wird eine Reduzierung des Betriebsgeräusches erreicht ohne Verlust der Filtereffizienz. Wird in der unteren Gebläseeinheit eine großflächige Kombination aus einem oder mehreren axialen Lüftern als Gebläse und einem elektrostatischen Filter als Filterelement gewählt, kann bei Steigerung der Filtereffizienz und bei gleichem Fördervolumen eine Reduzierung des Betriebsgeräusches erreicht werden.As a result of the ideal fan / filter combination, these can be optimally designed and a significant reduction in noise during operation compared to current air circulation devices can be achieved. If one or more axial fans are used in the lower fan unit, the operating noise is reduced without a loss of filter efficiency. If a large-area combination of one or more axial fans as the fan and an electrostatic filter as the filter element is selected in the lower fan unit, the operating noise can be reduced while increasing the filter efficiency and maintaining the same delivery volume.
Da der Geruchsfilter räumlich vom Benutzer distanziert wird, kann eine weitere Minderung des Betriebsgeräusches erreicht werden.Since the odor filter is spatially distanced from the user, a further reduction in operating noise can be achieved.
Schließlich kann durch die unabhängige und flexible Anpassung der Geruchs- und Fettfilterleistungen, entsprechend der Wrasenmenge und Zusammensetzung, die bei der Dunstabzugshaube beispielsweise durch separates Ansteuern der Gebläseeinheiten möglich ist, eine weitere Reduktion des Stromverbrauches und Geräuschreduzierung erzielt werden.Finally, through the independent and flexible adjustment of the odor and grease filter performance, depending on the amount of vapor and composition, which is possible with the extractor hood, for example by separately controlling the fan units, a further reduction in power consumption and noise can be achieved.
- 11
- DunstabzugshaubeExtractor hood
- 1010
- untere Gebläseeinheitlower fan unit
- 100100
- Gehäusecasing
- 101101
- Gebläsefan
- 102102
- FettfilterGrease filter
- 1111
- obere Gebläseeinheitupper fan unit
- 110110
- Gehäusecasing
- 111111
- Gebläsefan
- 112112
- GeruchsfilterOdor filter
- 1212th
- VerbindungselementConnecting element
- DD.
- Raumdeckeceiling
Claims (11)
- Extractor hood, which represents a recirculating hood, wherein the extractor hood (1) has connection elements (12) and at least two fan units (10, 11) which are spaced apart from one another at least for a period of time, in which at least one fan (101, 111) is provided in each case and which are arranged one above the other, wherein the upper fan unit (11) has at least one odour filter (112) and wherein the lower fan unit (10) has at least one grease filter (101), characterised in that the two fan units (10, 11) are interconnected such that they are able to move by way of connection elements (12), so that the spacing between the fan units (10, 11) can be changed.
- Extractor hood according to claim 1, characterised in that the two fan units (10, 11) can be moved relative to one another.
- Extractor hood according to one of claims 1 or 2, characterised in that the at least one fan (111) in the upper fan unit (11) is a radial fan.
- Extractor hood according to one of claims 1 to 3, characterised in that the at least one fan (101) in the lower fan unit (10) is an axial fan.
- Extractor hood according to one of claims 1 to 4, characterised in that the lower fan unit (10) has at least one air conducting element for deflecting the air flow towards the upper fan unit (11).
- Extractor hood according to one of claims 1 to 5, characterised in that the at least one fan (111) of the upper fan unit (11) and the at least one fan (101) of the lower fan unit (10) can be actuated jointly.
- Extractor hood according to one of claims 1 to 6, characterised in that the at least one fan (111) of the upper fan unit (11) and the at least one fan (101) of the lower fan unit (10) can be actuated separately.
- Extractor hood according to one of claims 1 to 7, characterised in that the upper fan unit (11) has an air inlet in the lower side and has an air outlet on at least some of the sides of the upper fan unit (11).
- Extractor hood according to one of claims 1 to 8, characterised in that the upper fan unit (11), on the upper side, has a fastening apparatus for fastening to a ceiling (D) of a room.
- Extractor hood according to one of claims 1 to 9, characterised in that the height of the lower fan unit (10) is lower than the height of the upper fan unit (11).
- Extractor hood according to one of claims 1 to 10, characterised in that the lower fan unit (10) has an air inlet on the lower side and an air outlet on the upper side.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018219738.5A DE102018219738A1 (en) | 2018-11-19 | 2018-11-19 | Extractor hood |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3653940A1 EP3653940A1 (en) | 2020-05-20 |
EP3653940B1 true EP3653940B1 (en) | 2021-09-08 |
Family
ID=68581302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19208672.6A Active EP3653940B1 (en) | 2018-11-19 | 2019-11-12 | Extractor hood |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3653940B1 (en) |
DE (1) | DE102018219738A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4325123A1 (en) * | 2022-08-19 | 2024-02-21 | Electrolux Appliances Aktiebolag | Extraction device for extraction of air and household appliance |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3718686A1 (en) * | 1987-06-04 | 1988-12-22 | Philips Patentverwaltung | COOKER HOOD, ESPECIALLY FOR KITCHEN |
DE10008014A1 (en) * | 2000-02-22 | 2001-08-23 | Bsh Bosch Siemens Hausgeraete | Vapor extractor hood, e.g. for kitchen, with central region of underside in inverted vee shape |
DE102008033792B4 (en) * | 2008-07-18 | 2021-04-29 | BSH Hausgeräte GmbH | Air circulation module and extractor device |
PL2196737T3 (en) * | 2008-12-10 | 2013-12-31 | Electrolux Home Products Corp Nv | Suction Hood |
DE102009054787B4 (en) * | 2009-12-16 | 2022-02-10 | BSH Hausgeräte GmbH | Separation unit for separating particles for a fume hood and fume hood |
DE102010014059A1 (en) * | 2010-04-07 | 2011-10-13 | Mahle International Gmbh | Discharge device and odor filter |
DE102011017685A1 (en) * | 2011-04-28 | 2012-10-31 | BSH Bosch und Siemens Hausgeräte GmbH | ventilation |
FR2997166B3 (en) | 2012-10-19 | 2015-05-15 | Airforce S P A | SIMPLIFIED FILTER HOOD |
EP2893967A1 (en) * | 2014-01-10 | 2015-07-15 | Berbel Ablufttechnik Gmbh | Device and method for elimination of odours |
-
2018
- 2018-11-19 DE DE102018219738.5A patent/DE102018219738A1/en not_active Withdrawn
-
2019
- 2019-11-12 EP EP19208672.6A patent/EP3653940B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102018219738A1 (en) | 2020-05-20 |
EP3653940A1 (en) | 2020-05-20 |
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