EP3926242A1 - Unité de filtre et hotte aspirante - Google Patents

Unité de filtre et hotte aspirante Download PDF

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Publication number
EP3926242A1
EP3926242A1 EP21176677.9A EP21176677A EP3926242A1 EP 3926242 A1 EP3926242 A1 EP 3926242A1 EP 21176677 A EP21176677 A EP 21176677A EP 3926242 A1 EP3926242 A1 EP 3926242A1
Authority
EP
European Patent Office
Prior art keywords
filter
cassette
filter unit
extractor device
filter element
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
EP21176677.9A
Other languages
German (de)
English (en)
Inventor
Benjamin DRIEDGER
Adnen KATEB
Eugen Maurer
Daniel Schopp
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3926242A1 publication Critical patent/EP3926242A1/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
    • F24C15/2035—Arrangement or mounting of filters
    • 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

Definitions

  • the present invention relates to a filter unit and an extractor device with a filter unit.
  • Extractor devices are used to remove vapors and odorous substances from the kitchen air.
  • An extractor hood for example, which is mounted above a hob can be used as an extractor device. The air is passed through filters and then blown out again outside the kitchen or returned to the kitchen after being cleaned in recirculation devices.
  • the so-called table-top ventilators or downdraft ventilators the cooking vapors are sucked off from the sides or from the back of the hob and guided downwards.
  • the flow channel is located behind the hob and integrated in the base unit of a kitchen unit. In order to achieve maximum utilization of the space in the base cabinet, which can be used, for example, for drawers and storage compartments or the like, the flow channel has a small depth.
  • the width of the table fan is usually defined by the width of the hob, which can be 80 cm or 90 cm, for example.
  • the object of the present invention is therefore to create a filter unit which allows good vapor separation and is nevertheless easy to handle and allows reliable operation of the extractor device in which the filter unit is used.
  • the object is achieved by a filter unit for an extractor device comprising at least one filter element and a filter cassette in which the at least one filter element is held.
  • the filter unit is characterized in that the filter cartridge has a trough on the bottom for collecting contaminants, a handle bracket on the top of the filter cartridge and a holding device between the bottom and the top to hold the at least one filter element in the filter cartridge in an inclined position.
  • a fume extractor device is a device by means of which air, in particular contaminated air in the form of fumes and vapors, can be extracted from a hob and / or a worktop.
  • the extractor device has a suction opening.
  • the extractor device also has a fan, by means of which air is sucked down through the suction opening.
  • the extractor device is preferably a table fan.
  • a structural unit is referred to as a filter unit, which can be introduced into and removed from the extractor device as a unit.
  • the filter unit comprises a filter element and a filter cassette.
  • a component that has at least one filter layer is referred to as a filter element.
  • the filter element is preferably a plate-shaped component.
  • the filter element preferably consists of at least two filter layers that are held in a frame.
  • the filter layers can for example consist of expanded metal, knitted metal or metal mesh or a combination of these materials.
  • the filter element is held in the filter cassette.
  • the filter element is preferably held detachably in the filter cassette, that is to say can be removed therefrom.
  • the filter cartridge has a bottom and a top. The floor is formed in some areas by a trough for collecting impurities.
  • the filter cassette has a handle on the top. Between the bottom and the top, the filter cartridge has a holding device for holding the at least one filter element in the filter cartridge.
  • Directional information for the filter unit relate - unless otherwise stated - to the filter unit in the state in which it has been placed in an extractor device.
  • the side of the filter unit that lies in or below the suction opening of the extractor device is referred to as the top side.
  • Sides of the filter unit which preferably consist of side walls, are the ends of the filter unit which, in the case of an elongated cross section of the filter unit, form the ends in the width direction.
  • the filter unit preferably has a greater width than depth.
  • the height of the filter unit is preferably greater than the depth.
  • the filter element is held in an inclined position in the filter cassette.
  • the inclined position which can also be referred to as the inclined position, is a position in which the filter element is at an angle greater than zero to the vertical in the state of the filter unit in which it is inserted in the extractor device, in particular the suction opening .
  • the holding device preferably extends over the entire height of the filter unit. However, a holding device can also be provided only in the lower region of the filter unit, preferably on the tub.
  • the holding device preferably comprises two holding elements which are provided on opposite lateral edges of the filter unit.
  • the trough which forms part of the bottom of the filter cassette, is used to collect contaminants, in particular liquids.
  • the trough preferably has an elongated shape and extends over the entire width of the filter cassette or at least between preferably provided side walls of the filter cassette.
  • the tub can also be referred to as a gutter. Contaminants that have deposited on the filter element and run down the filter element can be caught in the tub.
  • the tub is therefore arranged in such a way that a filter element accommodated in the filter cassette lies at least with its lower edge in or above the tub.
  • the filter unit has a holding device for holding the filter element in an inclined position, a trough is provided at the bottom of the filter unit and a handle bar is provided at the upper end of the filter cassette, a number of advantages can be achieved.
  • the filter capacity can be increased by the inclined position of the filter element and the efficiency of the separation can be increased due to the large filter surface and thus the large filter volume made possible by the inclined position, despite the small installation space available with table fans.
  • the combination of the inclined position of the filter element and the trough provided on the floor can create a reservoir for spilled liquids that could flow into the extractor device.
  • the handle bar provided on the top can facilitate the removal of the filter unit from an extractor device and also the spillage of the inside Tub accumulated contaminants, especially liquids, are prevented.
  • the holding device comprises a rail which extends from the top of the filter cassette to the bottom of the filter cassette on a side wall of the filter cassette.
  • the filter cassette preferably has two side walls and a rail is provided on each of the side walls. In an embodiment with side walls, the front edge of the side walls forms the front of the filter cassette.
  • the rail is provided at an incline on the side wall so that the filter element held by the rail is held in the filter cartridge in an inclined position. The entire height of the filter element is supported by the rail at the side edges.
  • the handle bar extends over the width of the filter cassette.
  • the width of the filter cassette is the dimension that corresponds to the larger of the dimensions of the filter cassette in the horizontal. Since the handlebar extends over the width and preferably over the entire width, the points of application of the handlebar are on the side walls of the filter cassette and thus allow a reliable prevention of pivoting of the filter cassette when removing the filter unit from the extractor device.
  • the filter cassette has a rear wall.
  • this preferably comprises no further components apart from the tub, the handle bar and the preferably provided side walls.
  • the filter cassette is open at the bottom in the area of the floor that is not formed by the trough, at the top and preferably also at the front. This reduces the weight of the filter cassette and thus of the filter unit.
  • the stability of the filter cassette is increased by the rear wall and thus the safe removal of the filter unit from the extractor device is guaranteed.
  • the filter unit which has an open front side, is preferably introduced into the flow channel of the fume extractor device, which adjoins the suction opening at the bottom, in such a way that the open front side rests against a wall of the flow channel. It It is also within the scope of the invention that the filter cartridge also has a front wall.
  • the handle bar is arranged on the top of the filter cassette and preferably extends in the width direction of the filter cassette.
  • the handle bar is preferably arranged on the front of the filter cassette.
  • the handle bar can also be arranged at a distance from the front side, for example on the side walls of the filter cassette. Since the handle bar is arranged on the front of the filter cassette, it does not block the air flow that enters the filter cassette over the top, or only slightly at the front edge. In particular in the case of a filter cassette that does not have a front wall, the handle bar also serves to increase the stability of the filter cassette.
  • the filter element has a cover on the top.
  • This cover preferably extends beyond the side of the filter element which faces the rear wall of the filter cassette. Providing a cover improves the visual appearance of the filter unit, since in the state in which the filter unit is inserted into the suction opening of the extractor device, the top of the filter element is usually visible to the user.
  • the cover in particular a cover with a protrusion, can also help hold the filter element in the filter cassette.
  • the protrusion of the holding device can rest on the top of the rear wall.
  • the cover can also serve as a handle by means of which the filter element can be removed from the filter cassette. This further simplifies the handling of the filter unit, since the filter element can be removed from the extractor device and cleaned without the filter cassette.
  • only part of the bottom of the filter cassette is formed by the trough and the other part of the bottom is open.
  • This embodiment is particularly preferred in an embodiment of the filter unit in which the filter cassette has a rear wall.
  • the air can exit the filter cassette via the open part of the floor and reach the fan of the extractor device, through which the air is sucked in.
  • the filter element is held in the filter cassette in such a way that it covers the open part of the base in a vertical plan view of the filter unit.
  • the filter element is held in such a way that its lower edge is aligned with the tub or received in it and the upper edge rests against the rear and in particular a rear wall.
  • the filter element has at least one filter layer made of knitted metal.
  • the filter element can have several filter layers.
  • the filter element has several inner layers made of knitted metal and two cover layers.
  • the cover layers can also consist of knitted metal or preferably represent expanded metal layers.
  • a seal is provided between the tub and the holding device.
  • the seal can be provided between the trough and rails which form the holding device on the side walls.
  • a sealing membrane can be provided as a seal.
  • the invention relates to a DAV which has at least one filter unit according to the invention.
  • a fume extractor device is a device by means of which air, in particular contaminated air in the form of fumes and vapors, can be extracted from a hob and / or a worktop.
  • the extractor device has a suction opening.
  • the extractor device also has a fan, by means of which air is sucked down through the suction opening.
  • the extractor device is preferably a table fan.
  • the filter unit is placed in the suction opening of the extractor device in such a way that the filter element in the filter unit protrudes downward from the suction opening.
  • FIG 4 a schematic plan view of an embodiment of an extractor device 2 according to the invention is shown.
  • the extractor device 2 is incorporated in a worktop 4 of kitchen furniture (not shown).
  • the suction opening 20 of the extractor device 2 is visible.
  • the extractor device 2 comprises a fan and a flow channel (both not shown) between the suction opening 20 and the fan.
  • the extractor device 2 is arranged in such a way that the suction opening 20 is located behind a hob 3.
  • the suction opening 20 extends in the width direction of the hob 3 and has an elongated shape.
  • a filter unit 1 is introduced into the suction opening 20 which, with reference to FIG Figures 1 to 3 is described in more detail.
  • the side of the filter unit 1 facing the hob 3 represents the front of the filter unit 1.
  • FIG. 1 an embodiment of the filter unit 1 according to the invention is shown schematically in a perspective view.
  • the filter unit 1 consists of a filter element 10 and a filter cassette 11. These are shown in FIG Figure 2 shown in exploded view.
  • the filter element 10 consists of a filter 100 which is held in a frame 102 and a cover 101.
  • the filter 100 represents a flat filter 100 which preferably consists of several filter layers.
  • the frame 102 surrounds the filter 100 at its edges.
  • a cover 101 is provided on the filter element 10 on the upper side of the filter 100 and frame 102. In the embodiment shown, the cover has the shape of a bar with a wedge-shaped cross-section and extends over the entire upper side of the filter 100 and frame 102.
  • the filter cassette 11 consists of a rear wall 113, two side walls 115, a trough 111 and a handle bar 112.
  • the distance between the side walls 115 corresponds to the width of the filter 100 with frame 102.
  • a handle bar 112 is provided, which extends in the width direction between the side walls 115 and represents a bar.
  • the trough 111 is provided in the front region of the side walls 115.
  • the trough 111 forms part of the bottom of the filter cassette 11.
  • a rear wall 113 is provided on the rear edge of the side walls 115.
  • the rear wall 113 preferably extends over the entire height of the filter cassette 11.
  • a rail 110 is arranged on each of the inner sides of the side walls 115 as a holding device for the filter element 10.
  • the rails 110 are inclined.
  • the rails 110 preferably run from the upper rear edge of the respective side wall 115 to the front lower edge of the respective side wall 115.
  • the filter element 10 can be introduced into the filter cassette 11 and removed from it, as indicated by the double arrow in FIG Figure 2 is indicated.
  • the filter element 10 is introduced into the filter cassette 11 in such a way that the lateral edges of the filter element 10 rest on the rails 110.
  • the lower edge of the filter element 10 lies in the trough 111.
  • the cover 101 of the filter element 10 which extends over the rear side of the filter element 10, the underside of the cover 101 lies in the Figure 1 shown state on the top of the rear wall 113 on.
  • the cover 101 has a length which is greater than the width of the filter 100 with frame 102. Therefore, in the embodiment shown, the cover rests on the side walls 115 at the lateral ends.
  • FIG 3 the area of the filter unit 1 between a side wall 115 and the trough 111 is shown.
  • a seal 114 in the form of a sealing membrane is arranged between the trough 111 and the rail 110 provided on the side wall 115.
  • the filter unit 1 is introduced into the suction opening 20 such that the handle 112 and thus the front of the filter unit 1 faces the hob 3.
  • the rear wall and cover 101 thus lies on the edge of the suction opening 20, which faces away from the hob 3.
  • the cover 101 can protrude beyond the plane of the worktop 4.
  • the top of the cover 101 lies in the plane of the worktop 4.
  • the filter cassette 11 lies in the flow channel (not shown) which adjoins the suction opening 20 at the bottom.
  • a good cooking experience is guaranteed in a narrow flow channel which is provided in an extractor device that represents a table fan.
  • a large filter surface is provided by the inclined position of the filter element in the flow channel. This will efficiently filter fat, especially with good separation and high capacity.
  • the collection of vapor that drips off again from the filter for example made of expanded metal, metal mesh or metal knitted fabric, is made possible. All parts of the filter unit that are used for Filtration of the vapors from the extracted air can be removed by the user from the extractor device and cleaned, for example in the dishwasher.
  • a filter unit which has a filter element and a filter cassette.
  • the filter of the filter element consists, for example, of expanded metal, knitted metal or metal mesh or a combination of these materials. Several layers, for example twelve inner layers of knitted metal and one expanded metal layer each as a top or back layer, are enclosed by a metal frame.
  • the filter can be held at the top by a plastic cover, which also serves as a filter handle.
  • the filter element is preferably enclosed in the filter cassette by side rails, which additionally fulfills the function of absorbing vapor in a tub at the lower edge.
  • the filter cassette has a handle to remove the filter unit from the device. In order to enable the air flow to be guided and to stabilize the filter cassette, it is preferably closed off by a rear wall.
  • the filter element can preferably be separated from the filter cassette on the filter cover in order to clean the two components individually or to clean them in the dishwasher as soon as the filter unit has been removed from the extractor device.
  • an additional sealing membrane can be installed for a perfect seal between the components, which are subject to tolerances due to manufacturing, the rail and the tub.
  • the present invention has a number of advantages.
  • a large filter surface or large filter volume is provided for efficient separation of fumes and increasing the filter capacity by tilting the filter.
  • the use of knitted metal means that filtration can take place with less pressure loss.
  • the tub is designed to collect contaminants from the vapor.
  • the filter cover can serve as a design element in the extractor hood.
  • a cost advantage is achieved through multiple use of components.
  • the handle bar is also used for customer-friendly removal of the filter unit. Due to the combination of the inclined position of the filter element and the provision of the tub, the filter unit also offers a reservoir for spilled liquids that flow into the extractor device.

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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)
EP21176677.9A 2020-06-15 2021-05-28 Unité de filtre et hotte aspirante Pending EP3926242A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020207373.2A DE102020207373A1 (de) 2020-06-15 2020-06-15 Filtereinheit und Dunstabzugsvorrichtung

Publications (1)

Publication Number Publication Date
EP3926242A1 true EP3926242A1 (fr) 2021-12-22

Family

ID=76181028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21176677.9A Pending EP3926242A1 (fr) 2020-06-15 2021-05-28 Unité de filtre et hotte aspirante

Country Status (2)

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EP (1) EP3926242A1 (fr)
DE (1) DE102020207373A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016104283U1 (de) * 2015-08-07 2016-08-09 Airforce S.P.A. Vorrichtung zum Filtern von Dünsten und Dämpfen vom Kochen
WO2017080781A1 (fr) * 2015-11-10 2017-05-18 BSH Hausgeräte GmbH Dispositif de filtration pour dispositif d'aspiration de fumées et dispositif d'aspiration de fumées
DE102016211207A1 (de) * 2016-06-22 2017-12-28 Wilhelm Bruckbauer Vorrichtung zum Abzug von Kochdünsten
WO2019197055A1 (fr) * 2018-04-10 2019-10-17 BSH Hausgeräte GmbH Dispositif de filtrage et dispositif d'évacuation de fumée comprenant un dispositif de filtrage
DE102018213743A1 (de) * 2018-08-15 2020-02-20 Wilhelm Bruckbauer Filtereinsatz für eine Dunstabzugsvorrichtung zum Abzug von Kochdünsten nach unten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016104283U1 (de) * 2015-08-07 2016-08-09 Airforce S.P.A. Vorrichtung zum Filtern von Dünsten und Dämpfen vom Kochen
WO2017080781A1 (fr) * 2015-11-10 2017-05-18 BSH Hausgeräte GmbH Dispositif de filtration pour dispositif d'aspiration de fumées et dispositif d'aspiration de fumées
DE102016211207A1 (de) * 2016-06-22 2017-12-28 Wilhelm Bruckbauer Vorrichtung zum Abzug von Kochdünsten
WO2019197055A1 (fr) * 2018-04-10 2019-10-17 BSH Hausgeräte GmbH Dispositif de filtrage et dispositif d'évacuation de fumée comprenant un dispositif de filtrage
DE102018213743A1 (de) * 2018-08-15 2020-02-20 Wilhelm Bruckbauer Filtereinsatz für eine Dunstabzugsvorrichtung zum Abzug von Kochdünsten nach unten

Also Published As

Publication number Publication date
DE102020207373A1 (de) 2021-12-16

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