EP4328497A1 - Dispositif d'aspiration de fumées pouvant être intégré dans une plaque de cuisson et plaque de cuisson - Google Patents

Dispositif d'aspiration de fumées pouvant être intégré dans une plaque de cuisson et plaque de cuisson Download PDF

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Publication number
EP4328497A1
EP4328497A1 EP23190007.7A EP23190007A EP4328497A1 EP 4328497 A1 EP4328497 A1 EP 4328497A1 EP 23190007 A EP23190007 A EP 23190007A EP 4328497 A1 EP4328497 A1 EP 4328497A1
Authority
EP
European Patent Office
Prior art keywords
grease filter
extractor
filter
fan
hob
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.)
Pending
Application number
EP23190007.7A
Other languages
German (de)
English (en)
Inventor
Ole Behrens
Artur Geist
Robin Friedrich
Stefan Szlagowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP4328497A1 publication Critical patent/EP4328497A1/fr
Pending legal-status Critical Current

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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
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft
    • 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
    • F24C15/14—Spillage trays or grooves

Definitions

  • the invention relates to an extractor device that can be structurally integrated into a hob according to the preamble of claim 1 and a hob with an extractor hood that is structurally integrated into the hob.
  • the known extractor devices include an extractor device housing for arranging the extractor device below a hob plate of the hob, a grease filter arranged in the extractor device housing and connected in a flow-conducting manner to a suction opening of the hob plate, a collecting tray for liquid arranged in the extractor device housing below the grease filter and the suction opening, and a collection tray for liquid in the extractor device housing and a fan arranged in the direction of flow after the fat filter and the collecting pan for suction of vapors rising above the hob, the fat filter having a vapor inlet opening which is connected to the suction opening in a flow-conducting manner for the entry of the vapor into the grease filter and two each as a filter wall for removing vapor contained in the vapor Fat from the vapor has vapor outlets for exiting the vapor from the grease filter, and wherein one vapor
  • the invention therefore presents the problem of improving an extractor device for structural integration into a hob and a hob with a structurally integrated extractor device.
  • an extractor device with the features of patent claim 1, which is characterized in that at least one baffle wall is arranged on the collecting trough for separating liquid and fat entrained in the vapors, one of the at least one Baffle wall is arranged as a fan-side baffle in a flow path of the vapor between the grease filter on the one hand and the fan on the other hand, and wherein an upper side of the fan-side baffle wall facing the hob plate is the same distance from the hob plate as or a smaller distance from the hob plate than one facing the collecting pan Bottom of the grease filter.
  • the advantage that can be achieved with the invention is, in particular, that an extractor device for structural integration into a hob and a hob with a structurally integrated extractor device are improved. Due to the inventive design of the extractor device and the hob, the vapor downstream of the grease filter and the collecting pan is much better cleaned of grease and entrained moisture, for example water, so that less grease and moisture reach the fan. Accordingly, the fan in the extractor device according to the invention and in the cooktops according to the invention equipped with it is less contaminated. This also applies to particularly critical parts of the blower, for example non-removable housing components of the blower. It is therefore possible using the invention to achieve, for example, a better label value with regard to fat reduction.
  • the aforementioned advantages of the invention are particularly important in extractor devices according to the invention and cooktops according to the invention equipped therewith, in which high suction powers and thus high flow velocities of the vapor, for example in certain operating states of the extractor device according to the invention, are realized.
  • the invention thus allows, with essentially the same liquid and fat separation levels, a higher delivery volume per unit of time compared to the prior art, so that the suction result, i.e. the aforementioned suction performance of vapors rising above the hob, is improved.
  • the extractor device according to the invention can be freely selected within wide suitable limits in terms of type, functionality, material and dimensions.
  • the extractor device according to the invention can be used advantageously both for household hobs and for commercial hobs, i.e. hobs for professional use.
  • at least one of the at least one baffle wall is designed as a separate component.
  • the at least one baffle wall, preferably all baffle walls, each form an integral part of the collecting trough are/is trained.
  • this reduces the number of components of the extractor device according to the invention and thus the logistics and storage.
  • walls of the collecting trough that are raised all around to form baffles significantly increase the capacity of the collecting trough.
  • an advantageous development of the extractor device provides that the blower-side baffle protrudes so far from the collecting pan in the direction of the hob plate that the blower-side baffle extends over 1/4 to 1/3 of a height of the grease filter parallel to the grease filter.
  • the aforementioned deposition is further improved, i.e. the degree of deposition is additionally increased.
  • the disruption to the vapor flow caused by the blower-side baffle is kept within acceptable limits.
  • a further advantageous development of the extractor device according to the invention provides that the grease filter, the collecting trough and the blower-side baffle are designed and arranged in such a way that they are coordinated with one another in such a way that a speed of the underflow is so low in all operating states of the extractor device that a liquid located in the collecting trough of is not carried away by the undercurrent.
  • a significant reduction in the loading of the vapor with liquid is achieved, for example from the collecting trough of liquid entrained by the undercurrent, downstream of the grease filter and the collecting trough.
  • the grease filter is designed as a V-shaped grease filter, with the vapor inlet opening being arranged in a base of the grease filter and one of the vapor outlets being arranged in two opposite legs of the grease filter.
  • the grease filter is designed to be particularly simple and effective in terms of construction and production technology. Furthermore, this promotes a very compact design of the extractor device according to the invention.
  • the grease filter is also shaped in another suitable and sensible way.
  • the grease filter can also have a U-shape in cross section with a more or less pronounced transition between the two legs of the U.
  • a particularly advantageous development of the extractor device according to the invention provides that the grease filter is arranged in the extractor device housing in such a way that a flow around the grease filter in the direction of the fan is only possible in the form of the underflow between the grease filter and the collecting pan. To this A defined and therefore targeted fluidic design of the extractor device according to the invention is made possible.
  • a further advantageous development of the extractor device according to the invention provides that on the collecting pan, in addition to the blower-side baffle wall, a fan-remote baffle wall positioned on the side of the grease filter facing away from the fan is arranged, preferably that the blower-remote baffle wall is designed identically to the blower-side baffle wall.
  • this effectively prevents unwanted contamination of the extractor housing with liquid and grease, even on the side of the grease filter facing away from the fan.
  • the preferred embodiment of this development offers the further advantage that the construction and production of the extractor device according to the invention are simplified.
  • an odor filter is arranged in the extractor device housing and in the flow direction after the grease filter and the collecting pan, preferably that the odor filter is arranged in the flow path between the grease filter and the fan.
  • the odor filter is expediently installed in front of the blower in the direction of flow.
  • the extractor device provides that the grease filter and/or the odor filter are detachably arranged on the extractor device housing in such a way that the respective filter can be cleaned and/or replaced on site. This basically makes it possible to clean and/or replace the grease filter and/or the odor filter on site, i.e. at the installation location of the hob.
  • the collecting pan is designed to be removable from the extractor device. This means that liquids in the collecting tray, for example, can be easily removed.
  • an advantageous development of the hob according to the invention provides that the extractor device is arranged in the hob in such a way that the grease filter and/or the odor filter can be cleaned and/or replaced on site.
  • the hob 2 is designed as an induction hob and has an extractor device 4 structurally integrated into the hob 2.
  • the extractor device 4 comprises an extractor device housing 6 for arranging the extractor device 4 below a hob plate 8 of the hob 2, a grease filter 12 arranged in the extractor device housing 6 and connected in a flow-conducting manner to a suction opening 10 of the hob plate 8, one in the extractor device housing 6 below the grease filter 12 and the Suction opening 10 arranged collecting pan 14 for liquid 16 and a fan 18 arranged in the extractor device housing 6 and in the flow direction after the fat filter 12 and the collecting pan 14 for suction of vapors 20 rising above the hob 2, the fat filter 12 being connected to the suction opening 10 in a flow-conducting manner Vapor inlet opening 22 for the entry of the vapor 20 into the fat filter 12 and two vapor outlets 24, 26, each designed as a filter wall for removing fat (not shown) contained in the vapor 20 from the vapor 20, for the exit of the vapor 20 from the grease filter 12, and wherein the one vapor outlet 24 is arranged on a side of the grease filter 12 facing the fan 18 and the
  • At least one baffle 28, 30 is arranged on the collecting trough 14 for the separation of liquid 16 and fat entrained in the vapor 20, one of the at least one baffle 30 acting as a fan-side baffle in a flow path of the vapor 20 between the grease filter 12 on the one hand and the Fan 18 is arranged on the other hand, and wherein an upper side of the fan-side baffle wall 30 facing the hob plate 8 has the same distance from the hob plate as or a smaller distance from the hob plate 8 than an underside of the grease filter 12 facing the collecting pan 14.
  • the blower-side baffle 30 thus protrudes from the Collecting pan 14 so far in the direction of the hob plate 8 that the top of the fan-side baffle 30 is at a smaller distance from the hob plate 8 than a vertex of the aforementioned underflow. In this way it is ensured that the vapors 20 flowing from the grease filter 12 in the direction of the blower 18 come into contact with the aforementioned blower-side baffle wall 30 for the purpose of separating any liquid 16 and fat still contained therein.
  • the apex of the undercurrent here refers to the point in the room closest to the collecting basin through which the undercurrent flows.
  • the aforementioned good separation of fat and liquid 16 from the vapor 20 is the case because the largest proportion of liquid 16 and fat contained in the fat filter 12 is present in the area of the fat filter 12 near the collecting pan. This applies anyway to any liquid 16 that may be in the collecting pan 14.
  • the flow velocities of the vapors 20 in the present exemplary embodiment are at least partially and in certain operating states of the extractor device 4 so high that, for example, in the grease filter 12 and/or in the collecting pan 14 Liquid located is carried along by the vapor 20.
  • the grease filter, the collecting trough and the blower-side baffle are designed and arranged in such a way that they are coordinated with one another in such a way that a speed of the underflow is so low in all operating states of the extractor device that a liquid located in the collecting trough of is not carried away by the undercurrent.
  • the grease filter 12 is designed here as a V-shaped grease filter, with the vapor inlet opening 22 being arranged in a base of the grease filter 12 and one of the vapor outlets 24, 26 being arranged in two opposite legs of the grease filter 12. Furthermore, the grease filter 12 is arranged in the extractor device housing 6 in such a way that a flow around the grease filter 12 in the direction of the blower 18 is only possible in the form of the underflow between the grease filter 12 and the collecting pan 14.
  • the baffle 28 in addition to the blower-side baffle 30, the baffle 28 is positioned on the collecting pan 14 and is positioned on the side of the grease filter 12 facing away from the blower 18 and is thus designed as a blower-remote baffle, the blower-remote baffle 28 here being designed identically to the blower-side baffle 30 is.
  • the aforementioned baffles 28, 30 are each designed as an integral part of the collecting trough 14. In order to increase the capacity of the collecting trough 14, a remainder of a circumferential wall of the collecting trough 14 is increased to the height of the two baffle walls 28, 30.
  • an odor filter 32 is arranged in the extractor device housing 6 and in the flow direction after the grease filter 12 and the collecting pan 14, the odor filter 32 being arranged in the flow path between the grease filter 12 and the blower 18.
  • the extractor device 4 is arranged in the hob 2 and, on the other hand, the grease filter 12 and the odor filter 32 are detachably arranged on the extractor device housing 6 in such a way that the grease filter 12 and the odor filter 32 are on site, i.e at the installation location of the hob 2, can be cleaned and/or replaced.
  • the hob 2 with the extractor device 4 is installed in a piece of kitchen furniture (not shown), for example a worktop or the like, and is ready for use.
  • the hob plate 8 of the hob 2 has the suction opening 10 which is connected in a flow-conducting manner to the vapor inlet opening 22 of the grease filter 12 of the extractor device 4.
  • the hob plate 8 here comprises a total of four unspecified hotplates, which are arranged distributed as usual on the hob plate 8. Of the four hotplates mentioned above, the one is shown here in the picture plane Fig. 1 Two of the cooking zones are arranged to the left and right of the suction opening 10. Accordingly, regardless of the specific hob used during a cooking process, efficient extraction of vapors 20 rising above the hob 2 is possible.
  • the extractor device 4 is, as usual, designed in such a way that the vapor 20 flows through the extractor device 4 in a guided forced flow, with the entire vapor 20 being forcibly sucked first through the grease filter 12 and then through the odor filter 32 by means of the fan 18.
  • the vapors 20 cleaned in this way can then either be led back in circulating air into the kitchen room (not shown) in which the hob 2 is set up, or can be conveyed into a free environment by the fan 18 by means of a flow connection (not shown).
  • the vapor 20 sucked out above the hob 2 by means of the fan 18 passes through the suction opening 10 into the extractor housing 6 and first flows through the V-shaped grease filter 12.
  • the vapor stream is not only freed from fat (not shown) by means of the fat filter 12, but at the same time is also divided into two sub-streams of essentially the same size, with one of the two sub-streams in the image plane Fig. 1 on the left through the grease filter 12, namely through the vapor outlet 26, and the other of the two partial streams in the image plane Fig. 1 passes through the grease filter 10 on the right, namely through the vapor outlet 24.
  • this vapor 20 flows in the aforementioned undercurrent between the grease filter 12 and the collecting trough 14 in the direction of the odor filter 32 and the blower 18. Due to the high flow velocities that occur at least in part, it may be that any liquid 16 located in the collecting trough 14 from this vapor 20 is dragged along. The same also applies to liquid 16 or fat adhering to the grease filter 12.
  • the vapor stream divided in the aforementioned manner is sucked through the odor filter 32 by means of the blower 18, with the vapor 20 entering essentially evenly distributed over the entire inlet surface of the odor filter 32 due to the division of the vapor stream into the two partial streams.
  • the cleaned vapors 20 can then either be guided back into the kitchen room (not shown) in which the hob 2 is set up in a recirculation mode of the extractor device 4, or in an exhaust mode of the extractor device 4 by means of a flow connection (not shown) from the Blower 18 is conveyed into a free environment.
  • the extractor device 4 can be used advantageously both in recirculating air mode and in exhaust air mode.
  • the extractor device 4 is designed in such a way that the extractor device 4 can be used both in recirculation mode and in exhaust air mode. Accordingly, it is unnecessary to design the extractor device according to the invention in two variants, namely for recirculation mode and for exhaust air mode. The necessary adjustment is made directly on site to the extractor hood 4 when the hob 2 is installed.
  • the vapor 20 downstream of the grease filter 12 and the collecting pan 14 is cleaned significantly better of grease and entrained moisture, for example water, so that there is less grease and moisture on the odor filter 32 and the fan 18 arrive. Accordingly, the odor filter 32 and the fan 18 in the extractor device 4 and the hob 2 equipped with it become less dirty.
  • the blower 18 can be cleaned, the associated cleaning effort is also significantly reduced.
  • the aforementioned advantages of the invention are particularly important in the extractor device 4 and the hob 2 of the present exemplary embodiment equipped with it, since high suction powers and thus high flow velocities of the vapor 20, for example in certain operating states of the extractor device 4, are realized.
  • the invention thus allows, with essentially the same liquid and fat separation levels, a higher delivery volume per unit of time compared to the prior art, so that the suction result, i.e. the aforementioned suction performance of vapors 20 rising above the hob 2, is improved.
  • the odor filter 32 with its odor-eliminating substance, for example the aforementioned activated carbon located in the odor filter 32, is less contaminated, so that a longer service life of the odor filter 32 is possible.
  • the odor filter 32 has to be changed less often, which, among other things, also reduces the burden on the environment.
  • the invention is not limited to the present exemplary embodiment. See, for example, the relevant statements in the introduction to the description, according to which the extractor device according to the invention is advantageous for both household hobs and commercial hobs, i.e. hobs for professional use can be used.
  • the type and functionality of the hob can also be freely selected within wide suitable limits and is not limited to induction hobs, as in the present exemplary embodiment. The same applies to the number and design of the hotplates arranged on the hob plate of the hob.
  • the invention can also be used advantageously in so-called surface hobs.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP23190007.7A 2022-08-23 2023-08-07 Dispositif d'aspiration de fumées pouvant être intégré dans une plaque de cuisson et plaque de cuisson Pending EP4328497A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE20225664A BE1030804B1 (de) 2022-08-23 2022-08-23 In ein Kochfeld baulich integrierbare Dunstabzugsvorrichtung und Kochfeld

Publications (1)

Publication Number Publication Date
EP4328497A1 true EP4328497A1 (fr) 2024-02-28

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EP23190007.7A Pending EP4328497A1 (fr) 2022-08-23 2023-08-07 Dispositif d'aspiration de fumées pouvant être intégré dans une plaque de cuisson et plaque de cuisson

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EP (1) EP4328497A1 (fr)
BE (1) BE1030804B1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6455818B1 (en) * 2001-08-23 2002-09-24 Maytag Corporation Downdraft filter assembly for a cooking appliance
DE102011018962A1 (de) * 2011-04-28 2012-10-31 Wilhelm Bruckbauer Kochfeld mit zentraler Absaugung von Kochdünsten nach unten
DE102017121367A1 (de) * 2017-09-14 2019-03-14 Berbel Ablufttechnik Gmbh Dunstabzug zum Abzug von auf einem Kochfeld erzeugter Abluft in vertikal unterhalb einer Kochfeldebene weisender Richtung
EP3855077A2 (fr) * 2020-01-24 2021-07-28 Wilhelm Bruckbauer Hotte aspirante permettant d'aspirer les vapeurs de cuisson vers le bas
DE202021105496U1 (de) * 2021-09-17 2021-12-07 Silverline Endüstri ve Ticaret A.S. Kochfeldmodul
EP4043797A1 (fr) * 2021-02-10 2022-08-17 V-Zug AG Hotte aspirante dans plaque de cuisson

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6455818B1 (en) * 2001-08-23 2002-09-24 Maytag Corporation Downdraft filter assembly for a cooking appliance
DE102011018962A1 (de) * 2011-04-28 2012-10-31 Wilhelm Bruckbauer Kochfeld mit zentraler Absaugung von Kochdünsten nach unten
DE102017121367A1 (de) * 2017-09-14 2019-03-14 Berbel Ablufttechnik Gmbh Dunstabzug zum Abzug von auf einem Kochfeld erzeugter Abluft in vertikal unterhalb einer Kochfeldebene weisender Richtung
EP3855077A2 (fr) * 2020-01-24 2021-07-28 Wilhelm Bruckbauer Hotte aspirante permettant d'aspirer les vapeurs de cuisson vers le bas
EP4043797A1 (fr) * 2021-02-10 2022-08-17 V-Zug AG Hotte aspirante dans plaque de cuisson
DE202021105496U1 (de) * 2021-09-17 2021-12-07 Silverline Endüstri ve Ticaret A.S. Kochfeldmodul

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Publication number Publication date
BE1030804A1 (de) 2024-03-18
BE1030804B1 (de) 2024-03-25

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