EP4001775A1 - Corps filtrant pour hotte aspirante et hotte aspirante comprenant un corps filtrant - Google Patents

Corps filtrant pour hotte aspirante et hotte aspirante comprenant un corps filtrant Download PDF

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Publication number
EP4001775A1
EP4001775A1 EP21206889.4A EP21206889A EP4001775A1 EP 4001775 A1 EP4001775 A1 EP 4001775A1 EP 21206889 A EP21206889 A EP 21206889A EP 4001775 A1 EP4001775 A1 EP 4001775A1
Authority
EP
European Patent Office
Prior art keywords
filtering
unit
opening
aspiration
collection
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.)
Granted
Application number
EP21206889.4A
Other languages
German (de)
English (en)
Other versions
EP4001775B1 (fr
Inventor
Andrea Rapisarda
Walter DI CARMINE
Alberto Gasparini
Daniele Bellucci
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.)
Faber SpA
Original Assignee
Faber SpA
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Publication date
Application filed by Faber SpA filed Critical Faber SpA
Publication of EP4001775A1 publication Critical patent/EP4001775A1/fr
Application granted granted Critical
Publication of EP4001775B1 publication Critical patent/EP4001775B1/fr
Active 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 subject of the present invention is a filtering body for a downdraught extractor hood, according to the preamble of the main claim.
  • a downdraught extractor hood is an extractor hood which is associated directly with a kitchen hob; this hood comprises an aspiration opening provided on this hob (centrally and between heating elements of said hob, or laterally thereto), through which the fumes which are generated on the hob itself during the preparation of food (containing water vapour and possibly grease) are aspirated by an aspiration unit placed below the hob and then emitted into the environment or ejected to the exterior thereof. Before being emitted from the hood, these fumes are filtered by at least one filtering unit which is placed between said opening on the hob and the aspiration unit. Channels optionally connect the components of the hood in an appropriate manner.
  • US2019/0203949 describes an insert for a hood of the downdraught type which comprises a filtering unit and a collection element to receive liquids, this unit and this element being able to be connected to one another.
  • the collection element has at least one surface for guiding the fumes aspirated, which surface can deflect the flow of these fumes. This surface has a curved or oblique form.
  • the objective of the present invention is to provide a filtering body for a downdraught extractor hood which permits the collection of any liquid entering the hood, said filtering body being improved in comparison with the known solutions.
  • the objective of the present invention is to provide a compact filtering body which is simple to produce and position in the hood.
  • Another objective is to provide a filtering body of the aforementioned type which does not affect the normal operation of the hood, i.e. which does not reduce the efficiency thereof.
  • Another objective is to provide a filtering body of the aforementioned type which is efficient in retaining the grease which is present in the fumes aspirated from the hob.
  • a further objective is to provide a downdraught hood which is provided with this filtering body.
  • a filtering body 1 can be used in a downdraught extractor hood 2 which can be associated with a hob 3 with heating elements 4, for example induction heating elements.
  • the hood 2 comprises an aspiration opening 5 provided with a grid 6 which is created in the hob 3, and is connected, as in figure 1 , directly (or by means of a duct) to the filtering body 1, which in turn is interposed between the opening 5 and an aspiration unit 10 of a type which in itself is known. From this aspiration unit there extends a duct for output of the air aspirated and filtered (which duct is not shown), which air is ejected into the environment where the hob 3 is located, or to the exterior thereof, in known manners.
  • the filtering body 1 which is placed below it has a solid prismatic geometric substantially parallelepiped form (see Fig. 2 ). If the opening has another form, for example circular, the filtering body could also have another form (cylindrical, cubic, or other).
  • the filtering body 1 comprises a perimeter frame 15 with openings 17 and 18 at an upper side or face and a lower side or face of the frame 15.
  • the frame preferably also has openings 16 on two opposite lateral flanks (long flanks of the frame 15).
  • the upper opening 17 faces towards the aspiration opening 5, whereas the lower opening 18 faces towards the underlying aspiration unit (to which the filtering body can be connected directly or indirectly by means of an appropriate duct, not shown).
  • the frame 15 is inserted inside a wide recovery tray 12, which is placed around this frame, and can recuperate liquids, oil or grease which may come from the hob 3, through the aspiration opening 5.
  • first filtering element 20 defined by a reticulated, optionally multi-layer body made of aluminium or a similar metal (such as also stainless steel).
  • This first filtering element 20 is also present at the lower opening 18 of the frame 15 of the filtering body 1 with a lower portion 20B thereof.
  • the first filtering element has, at least at its (lower) portion 20B, a second filtering element which preferably surmounts at least partly the (lateral) portions 20A of the first filtering element.
  • the filtering element 22 is a metal filter, preferably a filter for grease, comprising a body 23 made of metal plate, with a form which is substantially triangular (or that of an inverted "V"), or is at least curved in a part thereof 23A which is superimposed on the lower portion 20B of the first filtering element 20, i.e. its part 23A which is placed at the lower opening 18 of the frame 15 of the filtering body 1.
  • Said first and second filtering elements 20 and 22 define a filtering unit 30 of the filtering body 1.
  • This filtering unit 30 thus has a form which is triangular (or that of an inverted "V"), or alternatively has an arched transverse cross-section with a central portion or vertex 35 which goes (relatively) close to the aspiration opening 5, and lateral parts 36 which go away from both the sides of the portion 35, going towards the lower opening 18 of the frame 15.
  • These lateral parts 36 are thus connected without interruption to flanks 37 which rise along the lateral openings 16 of said frame.
  • the portion 35, the parts 36 and the flanks 37 are in contact with (or "cover") the first filtering element.
  • the second filtering element 22 has a plurality of covered openings 31 spaced from a corresponding superimposed portion 32 which is integral with the filtering element 22, said openings 31 and portions 32 providing the filtering element 22 with the form of a blind where the openings can be assimilated to the slats of the blind.
  • the openings 31 and the corresponding portions 32 (obtained by mechanical deformation of the body 23 of the element 22) can or need not be provided at the vertex 35 of the filtering unit 30, where the second filtering element 22 is made of solid plate.
  • the first openings are provided, starting from this vertex 35, on the initial parts of the lateral parts 36 of the filtering unit; figure 6 shows the solution with the openings 31, which are also provided at the vertex 35.
  • openings 31 can also be created with different forms and/or embodiments from those described in relation with the figures, which represent only a non-limiting example of the invention.
  • these openings 31 can also have forms different from the one shown in figure 4 for example.
  • each opening 31 instead of lying with its axis parallel to the long sides of the frame 15, each opening 31 lies along axes orthogonal to these long sides, as in figure 6 ; each opening can also have a circular or polygonal form, such as the one shown in figure 7 , where it has the form of rhombus.
  • the thickness of the filtering element 22, the material from which it is obtained, the geometry and dimensions of each opening 31 can be different.
  • the thickness S can be between 0.2 and 1 mm, and advantageously between 0.3 and 0.7 mm.
  • the width D of the openings 31 can be between 3 and 10 mm, preferably between 4 and 5 mm, and advantageously between 4 and 4.5 mm.
  • the other dimension D1 of the rhombus of the openings 31 can be between 1 and 6 mm, and preferably between 2 and 4 mm.
  • the materials used can be stainless steel, and metal alloys, preferably aluminium alloys.
  • the filtering unit 30 thus comprises perforated lower lateral ends 38 where the lateral parts 36 converge (or at least where they end), and from which the flanks 37 rise.
  • This unit is supported inside hollows 40 provided in the perimeter frame 15, at the lateral openings 16, and by brackets 41 which have a form complementary to that of the filtering unit 30, and are provided on flat end faces 42 and 43 of the frame 15, in the interior thereof.
  • a body or unit 50 is provided below the filtering unit 30 (i.e. between this unit, the recovery tray 12 and the aspiration unit 10) for collection of liquids, oil and/or grease which may pass through the aspiration opening 5.
  • This collection unit 50 which is associated with the filtering body 30 in a manner adjacent thereto, also receives the condensate of the fumes which are aspirated by the hood 2 through said opening 5.
  • the collection unit 50 has a substantially annular form, in the sense that it has a central opening 51 which can permit aspiration of the air, through the filtering unit 30, from the opening 5, by the aspiration unit 10.
  • the collection unit has a structure or body 52 which is rendered integral with the frame 15 in a known manner, i.e. by means of ultrasound welding or gluing or the like, in order to have a definitive connection with the frame 15, or by means of snap-coupling between parts of the frame and the structure 52, or by means of other, separable coupling units, if the frame 15 is connected in a manner which can be spaced from this structure.
  • the structure 52 has a channel 55 for collection of the liquid which is placed at the lateral ends 38 of the filtering unit, such as to be able to receive therefrom the condensate liquid, or liquid which may have entered the aspiration opening 5.
  • This structure 52 has raised lateral edges 52K at the ends of which there are provided lowered parts 88 which can allow the excess liquid which is present in the collection unit 50 to pass into the recuperation pan 12 which surrounds this unit 50. From there the liquid is discharged in any known manner (direct connection to a kitchen drain, drainage valve or the like).
  • the structure 52 itself has a form which converges towards at least one tank 58 for collection of the liquids, oil and/or grease, such as, for example, appropriate inclination from a first end 52A to a second end 52B of the structure 52 itself, which thus conveys the liquid into the tank 58 placed at the second end 52B; alternatively, as shown in figure 2 , two tanks 58 can be present symmetrically at both ends 52A and 52B of the unit 50, the structure of which clearly has parts which converge towards these ends.
  • the vapour and any liquid, oil or grease which penetrates from the upper opening 17 of the frame 15 inside the filtering body 1 meets the second filtering element 22, and runs on it, or rather on the portions 32 which are placed above the openings 31 of this filtering element, and falls along the lateral parts 36 of the filtering unit towards the lateral ends 38.
  • These ends are appropriately perforated, such that the liquid oil and/or grease collected can pass through the first filtering element 20 and then fall (arrows P in Fig. 3 ) into the collection channel 55, so as to reach the tank 58.
  • the liquid can pass to the recovery tray 12 and then be discharged therefrom.
  • the fumes can flow on the portions 32, and be returned into the openings 31 by the action of the aspiration unit 10, and thus be filtered before exiting from the filtering body 1, through the opening 41 of the unit 50 for collection of the liquid.
  • the filtering body 1 according to the invention is simple to create and move. It provides significant protection with respect to the liquids which may penetrate into the opening 5 from the hob 3, and it is simple to create and replace.

Landscapes

  • 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)
  • Fats And Perfumes (AREA)
  • Superstructure Of Vehicle (AREA)
  • Food-Manufacturing Devices (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
EP21206889.4A 2020-11-17 2021-11-08 Corps filtrant pour hotte aspirante et hotte aspirante comprenant un corps filtrant Active EP4001775B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102020000027516A IT202000027516A1 (it) 2020-11-17 2020-11-17 Gruppo filtro perfezionato per cappa aspirante

Publications (2)

Publication Number Publication Date
EP4001775A1 true EP4001775A1 (fr) 2022-05-25
EP4001775B1 EP4001775B1 (fr) 2023-05-24

Family

ID=74557039

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21206889.4A Active EP4001775B1 (fr) 2020-11-17 2021-11-08 Corps filtrant pour hotte aspirante et hotte aspirante comprenant un corps filtrant

Country Status (5)

Country Link
EP (1) EP4001775B1 (fr)
ES (1) ES2948018T3 (fr)
IT (1) IT202000027516A1 (fr)
PL (1) PL4001775T3 (fr)
PT (1) PT4001775T (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022206087A1 (de) 2022-06-17 2023-12-28 BORA - Vertriebs GmbH & Co KG Dunstabzugsvorrichtung zum Abzug von Kochdünsten nach unten und Kochfeldsystem

Citations (8)

* 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
CN205002197U (zh) * 2015-09-09 2016-01-27 欧派家居集团股份有限公司 吸油烟机及其油网
EP3287701A1 (fr) * 2016-08-26 2018-02-28 BSH Hausgeräte GmbH Unité de filtre pour un dispositif d'aspiration de fumées et appareil combiné pourvu du dispositif d'aspiration de fumées et une unité de filtre
EP3374054A1 (fr) * 2015-11-10 2018-09-19 BSH Hausgeräte GmbH Dispositif de filtration pour dispositif d'aspiration de fumées et dispositif d'aspiration de fumées
EP3473937A1 (fr) * 2017-10-19 2019-04-24 Wesco Ag Dispositif de filtration des fumées
US20190203949A1 (en) 2016-06-22 2019-07-04 Wilhelm Bruckbauer Insert for a downdraft extractor
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040139858A1 (en) * 2001-03-01 2004-07-22 Phillips Plastics Corporation Filtration media of porous inorganic particles
PE20181257A1 (es) * 2015-10-09 2018-08-03 Oy Halton Group Ltd Metodos y sistema de dispositivos de filtro

Patent Citations (8)

* 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
CN205002197U (zh) * 2015-09-09 2016-01-27 欧派家居集团股份有限公司 吸油烟机及其油网
EP3374054A1 (fr) * 2015-11-10 2018-09-19 BSH Hausgeräte GmbH Dispositif de filtration pour dispositif d'aspiration de fumées et dispositif d'aspiration de fumées
US20190203949A1 (en) 2016-06-22 2019-07-04 Wilhelm Bruckbauer Insert for a downdraft extractor
EP3287701A1 (fr) * 2016-08-26 2018-02-28 BSH Hausgeräte GmbH Unité de filtre pour un dispositif d'aspiration de fumées et appareil combiné pourvu du dispositif d'aspiration de fumées et une unité de filtre
EP3473937A1 (fr) * 2017-10-19 2019-04-24 Wesco Ag Dispositif de filtration des fumées
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022206087A1 (de) 2022-06-17 2023-12-28 BORA - Vertriebs GmbH & Co KG Dunstabzugsvorrichtung zum Abzug von Kochdünsten nach unten und Kochfeldsystem

Also Published As

Publication number Publication date
PT4001775T (pt) 2023-06-14
ES2948018T3 (es) 2023-08-25
IT202000027516A1 (it) 2022-05-17
EP4001775B1 (fr) 2023-05-24
PL4001775T3 (pl) 2023-10-02

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