EP2476960B1 - Switching device for an extractor hood for switching between circulation and extraction - Google Patents
Switching device for an extractor hood for switching between circulation and extraction Download PDFInfo
- Publication number
- EP2476960B1 EP2476960B1 EP20110000199 EP11000199A EP2476960B1 EP 2476960 B1 EP2476960 B1 EP 2476960B1 EP 20110000199 EP20110000199 EP 20110000199 EP 11000199 A EP11000199 A EP 11000199A EP 2476960 B1 EP2476960 B1 EP 2476960B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- outlet opening
- switching device
- circulation
- extraction
- opening
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0236—Ducting arrangements with ducts including air distributors, e.g. air collecting boxes with at least three openings
-
- 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
Definitions
- the invention relates to a switching device for an extractor hood for switching between recirculation and exhaust air operation, with a housing having an opening for vapor from the hood, an outlet opening for circulating air, an outlet opening for exhaust air and a guide grid within the housing, wherein the guide grid between a first position in which the guide grid closes the outlet opening for exhaust air, and a second position in which the guide grid closes the outlet opening for circulating air, is movable, wherein the outlet opening for circulating air and the outlet opening for exhaust air on the housing opposite and perpendicular to the opening for Vents are arranged by the hood, wherein the guide grid directs the vapors from the hood in the first position to the outlet opening for circulating air and passes in the second position to the outlet opening for exhaust air, wherein the guide grid is constructed of at least one flow baffle and in cross-section has a contour that circumscribes a quarter circle.
- a switching device is from the DE 79 12 952 U1 known.
- Such a switching device is for example from the EP 1 055 883 B1 known.
- the switching from exhaust air operation to recirculation mode and vice versa is done automatically, depending on the outside temperature, so that energy-saving operation of the hood is guaranteed even in the cold season.
- the air flow is directed past an odor filter or the odor filter is removed from the air.
- a closure mechanism is provided, which pivots the filter out of the flow path, at the same time the outlet opening is closed for circulating air.
- the outlet opening for circulating air is arranged perpendicular to the outlet opening for exhaust air. Since air must additionally flow through the filter during recirculation mode, this results in a way for the circulating air with high flow resistance, so that a fan in the hood must be designed accordingly strong, so that a satisfactory operation is guaranteed.
- a switching device of the type mentioned above in that the guide grid is rotatable about an axis which is arranged perpendicular to the flow direction of exhaust air and recirculation and perpendicular to the flow direction of the incoming vapor from the hood.
- the fact that the vapor is passed directly to the exhaust port for exhaust air or recirculated air eliminates the need to remove any filter materials from the flow path.
- the guide grille as the only moving component ensures an optimization of the flow path and avoids having to control several flaps for closing the outlet openings.
- the guide grid is constructed of at least two spaced Strömungsleitblechen so that turbulence in the air flow are restricted and the pressure loss is minimized. It is preferred that the flow baffles are arranged concentrically.
- the interior of the housing of the switching device is provided with a respective sealing strip adjacent to the outlet opening for exhaust air and the outlet opening for circulating air, against which the guide grid when reaching the first or the second position.
- a filter module is provided, which is to be connected to the outlet opening for circulating air.
- the filter module may then be stationary and sized appropriately to provide good cleaning of the vapor.
- the filter module has a drawer that holds the filter material so that it is easy to change.
- the filter module can be followed by a moisture buffer, which temporarily stores the moisture from the vapor and releases it back to the environment in a time-delayed manner in order, for example, to prevent fogging of window panes.
- the switching device 10 in this case has a two-part housing 18a, 18b, which has an opening 12 for vapor from an extractor hood (not shown in the figure), an outlet opening 16 for the exhaust hood Extract air and an outlet opening 14 for circulating air has.
- the outlet opening 16 for exhaust air and the outlet opening 14 for circulating air are arranged opposite one another on the housing.
- the opening 12 for vapor from the extractor hood is perpendicular to the two outlet openings 14, 16 on the housing 18a, 18b.
- the switching between exhaust air operation and recirculation mode is done with the help of a Leitgitters, as in the Figures 2 and 3 explained in more detail becomes.
- a switch 20 is provided on the housing 18b, which is preferably designed as a rotary switch and can switch between two end positions. Also intermediate positions between the end positions are possible.
- the switch 20 can also be operated indirectly via a Bowden cable 22, so that an operating unit 24 is user-friendly, for example, to attach to the kitchen wall.
- the opening 12 is designed for vapors from the hood as a circular channel
- the outlet openings 14, 16 for circulating air or exhaust air are preferably formed as flat channels.
- a filter module 30 Downstream of the filter module 30 may be provided a moisture buffer, which is not shown in the drawing.
- an exhaust duct 40 is attached, which directs the air into the open air.
- FIG. 2 shows a sectional view through a switching device according to an embodiment of the present invention.
- a guide grid 50 is arranged, which consists of three concentric Strömungsleitblechen 52, 54, 56, which are rotatable about an axis 58 together.
- the Strömungsleitbleche 52, 54, 56 each circumscribe a quarter circle.
- a position is shown in the vapor from the hood through the opening 12 enters the housing and should be directed to the outlet opening 14 for circulating air.
- the flow baffle 52 with the largest radius of curvature assumes a shut-off function, so that no false air can escape from the planned flow path and reaches the opening 16 for exhaust air.
- an edge 52a lies on the edge of the opening 12
- the second, opposite edge 52b is located on a sealing strip 60 and closes here the flow path.
- the Strömungsleitbleche 54, 56 are spaced from the flow baffle 52 and have a correspondingly smaller radius of curvature. They serve, in cooperation with the flow baffle 52, to keep the flow as low as possible and to lead to the outlet opening 14 for circulating air.
- FIG. 3 shows a sectional view similar to the FIG. 2 , but now the vapor is to be directed from the hood of the opening 12 to the opening 16 for exhaust air.
- the guide grid 50 from the in FIG. 2 shown rotated about the axis 58 by 90 °, so that now the edge 52b of Strömungsleitbleches 52 abuts the edge of the opening 12, the edge 52a on a sealing strip 62.
- the path to the opening 14 is closed for circulating air.
- the exhaust air from the hood exits through the opening 16 for exhaust air.
- FIG. 4 shows an exploded view of the switching device.
- the housing consists of two mirror-symmetrically constructed housing parts 18a and 18b, wherein in the flow path between the outlet opening 14 for circulating air and the outlet opening 16 for exhaust air, the guide grid 50 is arranged.
- Two pegs - only one of them, 66, is shown - are mounted on the axis of the guide grid 50.
- the pin 66 is guided through the opening 68 in the housing part 18b, wherein this pin 66 to be engaged in the outside on the housing part 18b Switch 20 is designed.
- the switch 20 is continuously switchable between two end positions corresponding to two angular positions of the guide grid 50, as in connection with the Figures 2 and 3 has been explained.
- FIG. 5 shows the structure of a filter module 30, as in a switching device according to FIG. 1 can be used.
- the filter module 30 consists of a housing 32, the top and side surfaces are provided with slots 34 through which air can flow.
- the bottom 36 is closed.
- a first open end 38 serves for connection to the outlet opening 14 for circulating air ( FIG. 1 )
- the drawer 80 consists of a substantially open frame and has a handle 84 for facilitating displacement.
- filter material 82 consisting of a mat with a U-shaped cross section can now be inserted.
- the filter material 82 can thus be replaced without dismantling the filter module 30 from the switching device.
- the filter material 82 is z. B. a charcoal-containing mat.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Ventilation (AREA)
Abstract
Description
Die Erfindung betrifft eine Umschaltvorrichtung für eine Dunstabzugshaube zum Umschalten zwischen Umluft- und Abluftbetrieb, mit einem Gehäuse, das eine Öffnung für Wrasen von der Dunstabzugshaube, eine Auslassöffnung für Umluft, eine Auslassöffnung für Abluft und ein Leitgitter innerhalb des Gehäuses aufweist, wobei das Leitgitter zwischen einer ersten Position, in der das Leitgitter die Auslassöffnung für Abluft verschließt, und einer zweiten Position, in der das Leitgitter die Auslassöffnung für Umluft verschließt, bewegbar ist, wobei die Auslassöffnung für Umluft und die Auslassöffnung für Abluft am Gehäuse gegenüberstehend und senkrecht zur Öffnung für Wrasen von der Dunstabzugshaube angeordnet sind, wobei das Leitgitter den Wrasen von der Dunstabzugshaube in der ersten Position zur Auslassöffnung für Umluft leitet und in der zweiten Position zur Auslassöffnung für Abluft leitet, wobei das Leitgitter aus mindestens einem Strömungsleitblech aufgebaut ist und im Querschnitt eine Kontur aufweist, die einen Viertelkreis umschreibt. Eine derartige Umschaltvorrichtung ist aus der
Eine derartige Umschaltvorrichtung ist beispielsweise aus der
Ausgehend von diesem Stand der Technik ist es die Aufgabe der vorliegenden Erfindung, eine Umschaltvorrichtung für eine Dunstabzugshaube zum Umschalten zwischen Umluft- und Abluftbetrieb derart zu gestalten, dass sowohl im Umluft- als auch im Abluftbetrieb die Luft widerstandsarm strömen kann.Based on this prior art, it is the object of the present invention to design a switching device for a cooker hood for switching between recirculation and exhaust air operation such that both in the recirculation and exhaust air operation, the air can flow with little resistance.
Diese Aufgabe wird von einer Umschaltvorrichtung der eingangs genannten Art dadurch gelöst, dass das Leitgitter um eine Achse drehbar, die senkrecht zur Strömungsrichtung von Abluft und Umluft und senkrecht zur Strömungsrichtung des eintretenden Wrasen von der Dunstabzugshaube angeordnet ist.This object is achieved by a switching device of the type mentioned above in that the guide grid is rotatable about an axis which is arranged perpendicular to the flow direction of exhaust air and recirculation and perpendicular to the flow direction of the incoming vapor from the hood.
Dadurch, dass der Wrasen unmittelbar zur Auslassöffnung für Abluft bzw. Umluft geleitet wird, entfällt die Notwendigkeit, etwaige Filtermaterialien aus dem Strömungsweg entfernen zu müssen. Das Leitgitter als einzige bewegliche Komponente sorgt für eine Optimierung des Strömungsweges und vermeidet dabei, dass mehrere Klappen zum Verschließen der Auslassöffnungen gesteuert werden müssen.The fact that the vapor is passed directly to the exhaust port for exhaust air or recirculated air eliminates the need to remove any filter materials from the flow path. The guide grille as the only moving component ensures an optimization of the flow path and avoids having to control several flaps for closing the outlet openings.
Vorzugsweise ist das Leitgitter aus mindestens zwei beabstandeten Strömungsleitblechen aufgebaut, so dass Turbulenzen im Luftstrom eingeschränkt werden und der Druckverlust so minimiert wird. Dabei ist bevorzugt, dass die Strömungsleitbleche konzentrisch angeordnet sind.Preferably, the guide grid is constructed of at least two spaced Strömungsleitblechen so that turbulence in the air flow are restricted and the pressure loss is minimized. It is preferred that the flow baffles are arranged concentrically.
Nach einer weiter vorteilhaften Ausgestaltung ist das Innere des Gehäuses der Umschaltvorrichtung mit je einer Dichtleiste benachbart der Auslassöffnung für Abluft und der Auslassöffnung für Umluft versehen, an der das Leitgitter beim Erreichen der ersten bzw. der zweiten Position anliegt.According to a further advantageous embodiment, the interior of the housing of the switching device is provided with a respective sealing strip adjacent to the outlet opening for exhaust air and the outlet opening for circulating air, against which the guide grid when reaching the first or the second position.
Nach einer bevorzugten Ausführungsform ist ein Filtermodul vorgesehen, das an die Auslassöffnung für Umluft anzuschließen ist. Das Filtermodul kann dann stationär sein und geeignet dimensioniert werden, damit für eine gute Reinigung des Wrasen gesorgt wird. Vorzugsweise weist das Filtermodul einen Einschub auf, der das Filtermaterial hält, so dass es bequem zu wechseln ist.According to a preferred embodiment, a filter module is provided, which is to be connected to the outlet opening for circulating air. The filter module may then be stationary and sized appropriately to provide good cleaning of the vapor. Preferably, the filter module has a drawer that holds the filter material so that it is easy to change.
Schließlich kann dem Filtermodul ein Feuchtepuffer nachgeschaltet sein, der die Feuchtigkeit aus dem Wrasen zwischenspeichert und zeitverzögert wieder an die Umgebung abgibt, um zum Beispiel das Beschlagen von Fensterscheiben zu verhindern.Finally, the filter module can be followed by a moisture buffer, which temporarily stores the moisture from the vapor and releases it back to the environment in a time-delayed manner in order, for example, to prevent fogging of window panes.
Im Folgenden soll die Erfindung anhand der beigefügten Zeichnung näher erläutert werden. Dabei zeigt:
- Figur 1
- eine perspektivische Ansicht einer Umschaltvorrichtung für eine Dunstabzugshaube gemäß einer Ausführungsform der Erfindung;
- Figur 2
- eine Schnittansicht durch eine Umschaltvorrichtung gemäß einer Ausführungsform der vorliegenden Erfindung, wobei das Leitgitter in einer ersten Position ist;
- Figur 3
- eine Schnittansicht einer Umschaltvorrichtung gemäß der vorliegenden Erfindung ähnlich der der
Figur 2 , wobei das Leitgitter jedoch in der zweiten Position ist; - Figur 4
- eine Explosionsansicht einer Umschaltvorrichtung gemäß einer Ausführungsform der vorliegenden Erfindung, aus der der prinzipielle Aufbau hervorgeht; und
- Figur 5
- eine schematische Darstellung, aus der der Aufbau eines Filtermoduls für eine Umschaltvorrichtung gemäß der vorliegenden Erfindung hervorgeht.
- FIG. 1
- a perspective view of a switching device for an extractor hood according to an embodiment of the invention;
- FIG. 2
- a sectional view through a switching device according to an embodiment of the present invention, wherein the guide grid is in a first position;
- FIG. 3
- a sectional view of a switching device according to the present invention similar to that of
FIG. 2 However, the guide grid is in the second position; - FIG. 4
- an exploded view of a switching device according to an embodiment of the present invention, from which the basic structure is apparent; and
- FIG. 5
- a schematic representation showing the structure of a filter module for a switching device according to the present invention.
Die in der vorstehenden Beschreibung, in der Zeichnung sowie in den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in beliebiger Kombination für die Verwirklichung der Erfindung wesentlich sein.The features of the invention disclosed in the foregoing description, in the drawing and in the claims may be essential for the realization of the invention both individually and in any desired combination.
Claims (7)
- Switching device for an extractor hood for switching between circulation and extraction, comprising a housing (18a, 18b) which has an opening (12) for steam from the extractor hood, an outlet opening (14) for circulation, an outlet opening (16) for extraction and a guide baffle (50) within the housing (18a, 18b), the guide baffle (50) being movable between a first position in which the guide baffle (50) closes the outlet opening (16) for extraction and a second position in which the guide baffle closes the outlet opening (14) for circulation, the outlet opening (14) for circulation and the outlet opening (16) for extraction being disposed opposite one another on the housing (18a, 18b) and perpendicular to the opening (12) for steam from the extractor hood, the guide baffle (50) guiding the steam from the extractor hood in the first position to the outlet opening (14) for circulation and in the second position to the outlet opening (16) for extraction, the guide baffle (50) being made from at least one flow guide plate (52, 54, 56) and having a contour in cross-section which circumscribes a quarter circle, characterized in that the guide baffle (50) is rotatable about an axis (58) which is disposed perpendicular to the direction of flow of extraction and circulation and perpendicular to the direction of flow of the steam arriving from the extractor hood.
- Switching device according to Claim 1, characterized in that the guide baffle (50) is made from at least two spaced-apart flow guide plates (52, 54, 56).
- Switching device according to Claim 2, characterized in that the flow guide plates (52, 54, 56) are disposed concentrically.
- Switching device according to Claim 1, characterized in that in the housing (18a, 18b), in each case a sealing strip (60, 62) is disposed adjacent to the outlet opening (14) for circulation and to the outlet opening (16) for extraction, the guide baffle respectively (50) engaging against a said sealing strip when the first or the second position is reached.
- Switching device according to Claim 1, characterized by a filter module (30) that is to be connected at the outlet opening (14) for circulation.
- Switching device according to Claim 5, characterized in that the filter module (30) has a plug-in unit (80) which holds the filter material (82).
- Switching device according to Claim 5 or 6, characterized in that a damp buffer is connected downstream of the filter module (30).
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK11000199T DK2476960T3 (en) | 2011-01-12 | 2011-01-12 | Switching device for an odor-extraction hood and which can be switched between the circulation operation and the exhaust operation |
ES11000199T ES2441950T3 (en) | 2011-01-12 | 2011-01-12 | Switching device for a fume hood, intended to switch between circulation air operation and output air operation |
EP20110000199 EP2476960B1 (en) | 2011-01-12 | 2011-01-12 | Switching device for an extractor hood for switching between circulation and extraction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20110000199 EP2476960B1 (en) | 2011-01-12 | 2011-01-12 | Switching device for an extractor hood for switching between circulation and extraction |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2476960A1 EP2476960A1 (en) | 2012-07-18 |
EP2476960B1 true EP2476960B1 (en) | 2013-12-25 |
Family
ID=44147898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20110000199 Active EP2476960B1 (en) | 2011-01-12 | 2011-01-12 | Switching device for an extractor hood for switching between circulation and extraction |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2476960B1 (en) |
DK (1) | DK2476960T3 (en) |
ES (1) | ES2441950T3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014106607A1 (en) * | 2014-05-12 | 2015-11-12 | Miele & Cie. Kg | Extractor hood device and method |
DE202017006940U1 (en) | 2017-03-07 | 2018-11-28 | Naber Holding Gmbh & Co. Kg | Flat channel for the ventilation of buildings and a corresponding mounting arrangement |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2010363C2 (en) * | 2013-02-26 | 2014-08-27 | Brink Climate Systems B V | VENTILATION COMPOSITION, VALVE THEREFORE AND BUILDING WITH SUCH A VENTILATION COMPOSITION. |
US10215442B2 (en) * | 2014-07-30 | 2019-02-26 | The Boeing Company | Ventilation system and method including a diverter duct for fluidly decoupling fans |
DE202017100820U1 (en) * | 2017-02-15 | 2017-08-25 | Ilgaz Özpolat | deflection |
CN108386983B (en) * | 2018-02-06 | 2020-05-19 | 西安建筑科技大学 | Low-resistance shunt three-way component for ventilation air conditioner air pipe |
CN110118114B (en) * | 2019-02-28 | 2023-10-13 | 浙江亚特电器股份有限公司 | Muffler exhaust structure of four-stroke petrol engine chain saw |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7912952U1 (en) * | 1979-05-04 | 1979-11-22 | Georg Roehl Lichttechnische Spezialfabrik Apparate- Und Geraetebau Gmbh & Co Kg, 8400 Regensburg | CONNECTING PIPE TO A COOKER HOOD |
DE3040051A1 (en) * | 1980-10-23 | 1982-06-03 | Georg Röhl, Lichttechnische Spezialfabrik, Apparate- und Gerätebau GmbH & Co KG, 8400 Regensburg | Vapour exhaust hood control system - involves control of exhaust and fresh air ratio by regulating blower volume and/or speed |
GB2147990B (en) * | 1983-10-14 | 1988-04-27 | Thorn Emi Domestic Appliances | Fan unit |
DE3625975C2 (en) * | 1986-07-31 | 1997-07-10 | Lubbe Karlheinz Dipl Ing | Switching device for the optional recirculation or exhaust air operation of an extractor hood |
DE19923993A1 (en) | 1999-05-26 | 2000-11-30 | Bsh Bosch Siemens Hausgeraete | Extractor hood |
-
2011
- 2011-01-12 ES ES11000199T patent/ES2441950T3/en active Active
- 2011-01-12 DK DK11000199T patent/DK2476960T3/en active
- 2011-01-12 EP EP20110000199 patent/EP2476960B1/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014106607A1 (en) * | 2014-05-12 | 2015-11-12 | Miele & Cie. Kg | Extractor hood device and method |
DE202017006940U1 (en) | 2017-03-07 | 2018-11-28 | Naber Holding Gmbh & Co. Kg | Flat channel for the ventilation of buildings and a corresponding mounting arrangement |
Also Published As
Publication number | Publication date |
---|---|
DK2476960T3 (en) | 2014-03-10 |
ES2441950T3 (en) | 2014-02-07 |
EP2476960A1 (en) | 2012-07-18 |
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