EP3526521B1 - Haube zum absaugen von kochdämpfen - Google Patents

Haube zum absaugen von kochdämpfen Download PDF

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Publication number
EP3526521B1
EP3526521B1 EP17832803.5A EP17832803A EP3526521B1 EP 3526521 B1 EP3526521 B1 EP 3526521B1 EP 17832803 A EP17832803 A EP 17832803A EP 3526521 B1 EP3526521 B1 EP 3526521B1
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EP
European Patent Office
Prior art keywords
hood
panel
box
shaped body
duct
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.)
Active
Application number
EP17832803.5A
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German (de)
English (en)
Other versions
EP3526521A1 (fr
Inventor
Antonello Gargiulo
Rosangela CILIBERTI
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.)
Elica SpA
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Elica SpA
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Publication of EP3526521A1 publication Critical patent/EP3526521A1/fr
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Publication of EP3526521B1 publication Critical patent/EP3526521B1/fr
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area

Definitions

  • the present invention relates to a hood for the suction of cooking fumes.
  • the present invention relates to a vertical hood, that is to say, a hood wherein the suction opening is placed on a non-horizontal plane.
  • a vertical hood that is to say, a hood wherein the suction opening is placed on a non-horizontal plane.
  • Such hoods are usefully employed in kitchens of private homes, restaurants, dining halls or in any environment in which it is necessary to cook food and evacuate cooking fumes.
  • the vertical hoods are known in the prior art.
  • Such hoods comprise a box-shaped body in which a suction is housed.
  • the box-shaped body has one or more non-horizontal openings, that is to say, arranged substantially along a vertical direction.
  • the openings are arranged along an oblique direction, that is to say, they are inclined both with respect to a vertical direction and with respect to a horizontal direction.
  • a suction motor assembly is housed in the box-shaped body and, through a duct, is placed in fluid communication with the opening.
  • Such an assembly is also placed in fluid communication with a cooking fumes extraction pipe, in such a way to introduce the fumes in such an extraction pipe to extract them from the room.
  • noise is noted in the known hoods, mainly attributable to the transit of air through the grills and the filters placed to shield the fan of the suction motor assembly. Vibrating, such elements dissipate energy through acoustic waves that, entering in resonance with the ducts and metal parts of the hood are then transmitted to the exterior.
  • the technical task at the basis of the present invention is to propose a hood for the suction of cooking fumes that overcomes the above-mentioned drawbacks of the prior art.
  • the hood according to the invention resolves the technical problem in that the resonance cavities, suitably calibrated, allow for the creation of acoustic waves that, covering the noise produced by the grill panel, cancel it at least at the side walls, preventing it from propagating off the side walls towards the exterior. Since such a side wall produces the majority of acoustic emissions out of all the surfaces of the box-shaped body, it is possible to reduce the noise produced by the hood and transmitted to the exterior.
  • reference numeral 1 indicates a hood for the suction of cooking fumes according to the present invention.
  • the hood 1 comprises a box-shaped body 2. As shown for example in figure 2 , the box-shaped body 2 defines the lower section of the hood 1 and, in use, it is therefore facing the stove.
  • the box-shaped body 2 has at least one wall 2a, 2b, 2c, 2d, 2e in contact with the external environment.
  • the box-shaped body has a lower wall 2a, an upper wall 2b, a pair of side walls 2c, a front wall 2d and a back wall 2e.
  • the lower wall 2a directly faces the stove and, in use, it is arranged substantially horizontally, that is to say substantially perpendicular to one vertical direction "A".
  • the upper wall 2b is arranged substantially parallel to the lower wall 2a, therefore it also is substantially perpendicular to the vertical direction "A".
  • the back wall 2e is connected to the upper 2b and lower 2a walls, in particular it is arranged transversely and in particular perpendicularly to them.
  • the back wall 2e faces or is placed in contact with a wall.
  • the front wall 2d is connected to the upper 2a and lower walls.
  • the front wall 2d is also substantially inclined with respect to the vertical direction "A". It is noted that, in particular due to the inclination of the front wall 2d, the upper wall 2b generally has a larger surface with respect to the lower wall 2a.
  • the side walls 2c are arranged parallel to each other and are connected to the upper 2b, lower 2a, and back 2e walls. It is noted that, according to the preferred embodiment of the invention, the side walls 2c have a trapezoidal shape.
  • the box-shaped body 2 defines at least one duct 3 for the suction of cooking fumes.
  • a duct 3 has at least one opening 4 facing an external environment and, in particular, arranged on an inclined plane with respect to the vertical direction "A".
  • the opening 4 is arranged preferably along an oblique direction, therefore also inclined with respect to a horizontal direction.
  • the opening 4 is inclined at an angle of between 15° and 30°, preferably exactly at 21°, with respect to the vertical direction "A".
  • the box-shaped body 2 defines a pair of ducts 3, each having its own suction opening 4.
  • the already mentioned front wall 2d, partially covering the frontal zone of the box-shaped body 2, is placed between the openings 4. Even more particularly, the openings 4 are arranged symmetrically with respect to the front wall 2d.
  • the hood 1 also comprises an evacuation flue 6, placed centrally and above the box-shaped body 2.
  • the flue 6 is placed in fluid communication with the ducts 3.
  • the hood 1 also comprises suction means 5.
  • suction means 5 are placed in fluid communication with the ducts 3 and the flue 6.
  • the suction means 5 are configured to suction the cooking fumes from the ducts 3 and expel them through the flue 6.
  • the suction means 5 are per se known to the man skilled in the art, and will therefore not be described in detail.
  • the suction means 5 can comprise a suction motor assembly with a suction centrifuge.
  • suction means 5 are housed in a compartment 7 formed within the box-shaped body 2.
  • a compartment 7 is placed behind the front wall 2d, and is arranged between the above-mentioned ducts 3.
  • the hood 1 also comprises at least one grill panel 8 facing the suction means.
  • the grill panel 8 is in particular placed between the duct 3 and the suction means 5.
  • the panel 5 has the purpose of closing the compartment 7 of the suction means 5 leaving the cooking fumes to pass through and allowing a first filtration of the same cooking fumes. Such filtration occurs by favouring the condensation of the suspended fat and oil present in the fumes, in addition to the steam.
  • the grill panel 8 is arranged parallel to the side wall 2c.
  • the grill panel 8 is arranged parallel to the vertical direction "A".
  • the grill panel 8 is inclined with respect to said vertical direction "A”. Similar to the side walls 2c, the grill panel 8 has a trapezoidal shape.
  • the hood 1 comprises, in the preferred embodiment, at least two grill panels 8, each one placed to close a respective duct 3.
  • the structure of each grill panel 8 is per se known to the man skilled in the art, and will therefore not be described in detail.
  • Some filters are positioned inside the compartment 7, downstream of each grill panel 8.
  • the grill panels 8 are removable for cleaning, in addition to allow for the substitution of the filters and the cleaning of the compartment 7.
  • the hood 1 also comprises at least one perforated panel 9, inserted in the duct 3 and opposite of the grill panel 8.
  • the perforated panel 9 is also arranged between the side wall 2c and the grill panel 8.
  • the perforated panel 9 faces the side wall 2c, in such a way to define a plurality of acoustic resonance cavities 10 in cooperation with the side wall 2c itself.
  • the perforated panel 9 has a plurality of holes 11 distributed substantially uniformly across the perforated panel 9.
  • the perforated panel 9 is arranged parallel to the side wall 2c. In other words, the perforated panel 9 is arranged parallel to the vertical direction "A". In an alternative embodiment, not shown, the perforated panel 9 is inclined with respect to said vertical direction "A".
  • the hood 1 comprises two perforated panels 9, each one inserted within a respective duct 3 and facing a respective side wall 2c.
  • the operating mechanism of the cavities 10 defined by the perforated panel 9 is based on the Helmholtz resonance. Consequently, by suitably selecting the dimensions of the holes 11, their spacing on the perforated panel 9 and the distance of each perforated panel 9 from the respective side wall 2c, it is possible to define a resonance frequency of the cavities 10, making the perforated panel 9 capable of diminishing the acoustic vibrations produced by the movement of the cooking fumes in the ducts 3 and, in particular, by the passage of the grill panels 8.
  • the hood 1 comprises at least a sound-absorbing panel 12 arranged between the perforated panel 9 and the side wall 2c of the box-shaped body.
  • the sound-absorbing panel 12 uniformly covers all of the internal surface of the side wall 2c.
  • the sound-absorbing panel 12 contributes to the sound absorbing both directly, that is to say diminishing a large spectrum of frequencies, and by amplifying the spectrum of frequencies of the cavities 10.
  • the hood 1 also comprises at least one support frame 13. Such a frame 13 is inserted in the duct 3, and is removable from said duct 3.
  • the grill panel 8 is able to be fixed to the frame 13 to allow for extraction from the duct 3 together with the frame 13.
  • the perforated panel 9 can be fixed to the frame 13 in a position opposite with respect to the grill panel 8.
  • the frame 13 comprises an upper wall 13a, a back wall 13b and a lower wall 13c.
  • the upper wall 13a is facing the upper wall 2b of the box-shaped body 2.
  • the back wall 13b faces the back wall 2e of the box-shaped body 2.
  • the lower wall 13c faces the lower wall 2° of the box-shaped body 2.
  • the hood 1 comprises a pair of frames 13 each one inserted in a respective duct 3.
  • each frame 13 has a window 14 that defines a respective opening 4.
  • the window 14 is opposite to the back wall 13b.
  • the hood 1 comprises at least one removable drawer 15 to collect a condensate of cooking fumes.
  • Said drawer 15 is placed under the frame 3 and, optionally, under the compartment 7 of the suction means 5.
  • the drawer 15 is placed under one or both grill panels 8.
  • Each grill panel 8 is provided with channels (not shown) to direct the condensate and the collected fat inside the drawer 15.
  • the hood 1 comprises two drawers15, each one placed under a respective grill panel 8.
  • the hood 1 comprises a cover panel 16 for the opening 4.
  • Said cover panel 16 is in particular hinged to the upper edge 2f of the box-shaped body 2.
  • the cover panel 16 is convertible between a first configuration, in which it covers the opening 4 and a second configuration, in which it completely uncovers the opening 4.
  • the cover panel 16 is in the first configuration, therefore it is arranged parallel to the opening 4 and distanced from it, in order to allow for the entrance of air into the opening 4.
  • the cover panel 16 is rotated into the second configuration, that is to say in a position substantially horizontal and raised with respect to the box-shaped body 2, in order to allow for the removal of the frames 13 from said box-shaped body.
  • the hood 1 comprises a single cover panel 16 capable of covering both openings 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Claims (9)

  1. Hotte (1) pour l'aspiration des vapeurs de cuisson comprenant un corps en forme de boîte (2) présentant une paroi inférieure (2a), une paroi supérieure (2b), une paire de parois latérales (2c) et une paroi antérieure (2d) ; ladite paroi inférieure (2a) se trouvant directement en face d'une cuisinière et étant sensiblement perpendiculaire à une direction verticale (A) ; ladite paroi antérieure (2d) couvrant partiellement une zone antérieure du corps en forme de boîte (2) ; ledit corps en forme de boîte (2) définissant une paire de conduits (3) pour l'aspiration desdites vapeurs de cuisson, chaque conduit (3) ayant une ouverture respective (4) se trouvant face à un environnement extérieur et disposé sur un plan incliné à un angle compris entre 15° et 30° par rapport à ladite direction verticale (A), ledit corps en forme de boîte (2) ayant un compartiment (7) placé derrière la paroi antérieure (2d) et disposé entre les conduits (3) ; des moyens d'aspiration (5) insérés dans ledit compartiment (7) et placés en communication fluidique avec ledit conduit (3), caractérisée en ce que ladite paroi antérieure (2d) est placée entre lesdites ouvertures (4) ; et en ce qu'elle comprend deux panneaux grillagés (8), chacun disposé en correspondance de la fermeture d'un conduit respectif (3) et se trouvant en face desdits moyens d'aspiration (5) ; deux panneaux perforés (9) chacun en sens opposé par rapport à un panneau grillagé respectif (8) et se trouvant en face d'une paroi latérale respective (2c) pour définir une pluralité de cavités de résonance acoustique (10) en coopération avec ladite paroi latérale (2c).
  2. Hotte (1) selon la revendication 1, comprenant au moins un panneau d'absorption acoustique (12) disposé entre ledit panneau perforé (9) et ladite paroi latérale (2c).
  3. Hotte (1) selon l'une quelconque des revendications précédentes, comprenant un cadre de support (13) inséré dans ledit conduit (3), ledit cadre (13) étant capable d'être extrait dudit conduit (3), ledit panneau grillagé (8) étant capable d'être fixé audit cadre (13).
  4. Hotte (1) selon la revendication 3, dans laquelle ledit panneau perforé (9) peut être fixé audit cadre (13).
  5. Hotte (1) selon la revendication 3 ou 4, comprenant une paire de conduits (3), lesdits moyens d'aspiration (5) étant placés entre lesdits conduits (5) et étant placés en communication fluidique avec lesdits deux conduits (5) pour aspirer lesdites vapeurs de cuisson desdits conduits (5).
  6. Hotte (1) selon la revendication 5, comprenant un cadre (13) pour chaque conduit (3).
  7. Hotte (1) selon l'une quelconque des revendications 3 à 6, comprenant un panneau de couverture (16) pour ladite ouverture (4) articulée sur un bord supérieur (2f) dudit corps en forme de boîte (2) et étant capable de passer d'une première configuration dans laquelle il couvre ladite ouverture (4) à une deuxième configuration dans laquelle il découvre ladite ouverture (4) et est placé sensiblement de façon horizontale pour permettre l'extraction dudit cadre (13) dudit corps en forme de boîte (2).
  8. Hotte (1) selon l'une quelconque des revendications précédentes, comprenant un tiroir amovible (15) placé en-dessous dudit cadre (13) pour recueillir une condensation desdites vapeurs de cuisson.
  9. Hotte (1) selon l'une quelconque des revendications précédentes, dans laquelle ledit panneau grillagé (8) a une forme trapézoïdale.
EP17832803.5A 2016-10-11 2017-10-09 Haube zum absaugen von kochdämpfen Active EP3526521B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102016000102040A IT201600102040A1 (it) 2016-10-11 2016-10-11 Cappa per l’aspirazione di fumi di cottura.
PCT/IB2017/056220 WO2018069813A1 (fr) 2016-10-11 2017-10-09 Hotte pour l'aspiration de vapeurs de cuisson

Publications (2)

Publication Number Publication Date
EP3526521A1 EP3526521A1 (fr) 2019-08-21
EP3526521B1 true EP3526521B1 (fr) 2020-08-12

Family

ID=57910059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17832803.5A Active EP3526521B1 (fr) 2016-10-11 2017-10-09 Haube zum absaugen von kochdämpfen

Country Status (4)

Country Link
EP (1) EP3526521B1 (fr)
EA (1) EA035806B1 (fr)
IT (1) IT201600102040A1 (fr)
WO (1) WO2018069813A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109140547A (zh) * 2017-06-27 2019-01-04 博西华电器（江苏）有限公司 吸油烟机

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364664A (en) * 1964-07-20 1968-01-23 Cockle Ventilator Company Inc Grease extractor for ventilating systems
DE4443176C1 (de) * 1994-12-05 1996-05-02 Gaggenau Werke Geräuschreduzierte Dunstabzugshaube
CN2259575Y (zh) * 1996-04-23 1997-08-13 王利军 双叶轮纵置式深型吸排油烟机
KR20040025043A (ko) * 2002-09-18 2004-03-24 주식회사 엑타 건축용 배기 챔버 소음감소 구조
FR2911520B1 (fr) * 2007-01-19 2009-08-28 Roblin Sas Soc Par Actions Sim Hotte aspirante pour cuisine
CN201273623Y (zh) * 2008-08-06 2009-07-15 明宜工业股份有限公司 一种改进的斜背式排油烟机结构
CN202452550U (zh) * 2011-12-19 2012-09-26 海尔集团公司 油烟机
DE202013100130U1 (de) * 2013-01-11 2014-04-14 Carcoustics Techconsult Gmbh Akustisches Dämpfungselement für ein Haushaltsgerät, insbesondere für eine Dunstabzugshaube; Haushaltsgeräte mit akustischem Dämpfungselement
DE102013100271A1 (de) * 2013-01-11 2014-07-17 Miele & Cie. Kg Dunstabzugshaube
CN205048522U (zh) * 2015-10-20 2016-02-24 浙江科恩电器有限公司 吸油烟机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
IT201600102040A1 (it) 2018-04-11
WO2018069813A1 (fr) 2018-04-19
EP3526521A1 (fr) 2019-08-21
EA201990874A1 (ru) 2019-09-30
EA035806B1 (ru) 2020-08-13

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