EP2699849B1 - Dunstabzugs- und/oder filterhaube, insbesondere für ein küchennaushaltsgerät - Google Patents

Dunstabzugs- und/oder filterhaube, insbesondere für ein küchennaushaltsgerät Download PDF

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Publication number
EP2699849B1
EP2699849B1 EP12726184.0A EP12726184A EP2699849B1 EP 2699849 B1 EP2699849 B1 EP 2699849B1 EP 12726184 A EP12726184 A EP 12726184A EP 2699849 B1 EP2699849 B1 EP 2699849B1
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EP
European Patent Office
Prior art keywords
hood
partition element
inlet section
chimney
fumes
Prior art date
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Application number
EP12726184.0A
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English (en)
French (fr)
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EP2699849A1 (de
Inventor
Pier Sandro CACIOPPO
Serena Graziosi
Paolo Faraldi
Luciano Antonini
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.)
Whirlpool EMEA SpA
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Whirlpool EMEA SpA
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Publication of EP2699849A1 publication Critical patent/EP2699849A1/de
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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
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

Definitions

  • the present invention relates to a fumes suction and/ or filtering hood, in particular for a household kitchen unit, according to the preamble of claim 1.
  • the fumes suction and/ or filtering hood has now become a household appliance which is substantially indispensable in any household kitchen.
  • a hood may also play an important role in the exterior appearance of a household kitchen unit and must have certain characteristics, also specified by the law.
  • Modern hoods generally comprise an internally hollow chimney, a fumes inlet section in said chimney, and a motorized fan housed in said chimney, through which air is sucked into the chimney.
  • the inlet section is usually horizontal or slightly inclined above the cooking top, so as to be able to collect most odours and fumes produced by the latter.
  • Fumes suction and/or filtering hoods in particular for a household kitchen unit, may be:
  • suction-type hoods can be retrofitted to perform also the filtering function, in particular by positioning within their frame filters which trap the impurities (e.g. fumes, odours and fat molecules) contained in the aspirated air.
  • impurities e.g. fumes, odours and fat molecules
  • hoods known in the art suffer from many drawbacks, in that they produce noise which is rather disturbing and which is caused by both the noise of the motorized fan and the forced flow of the aspirated air through the suction duct; in general, the higher the suction speed, the louder the noise produced by the hood.
  • the latest-generation models are equipped with soundproofing protections and feature specially sized pipes and suction ducts.
  • hoods equipped with an external motorized fan which is installed in a loft or a suitable closet
  • Some models of hoods equipped with an external motorized fan are quieter; nevertheless, also such hood models have some drawbacks, in that it is necessary to provide a suitable housing for positioning the external motorized fan, thus occupying spaces which could be used otherwise.
  • manufacturing and installing such hood models are difficult and expensive tasks.
  • Document US 5,983,888 discloses a hood for exhausting cooking vapours and fumes, comprising a housing with an air inlet and an air outlet.
  • a modular device in the form of an intake muffler with a first air duct passage extending therethrough is mounted within the housing near the air inlet.
  • Document GB 984,817 describes a silencing device, formed as a Venturi contraction in sound absorbing material, that is located immediately downstream of an electric motor.
  • Document FR 2 911 520 A1 describes a kitchen hood including an apparatus for drawing fumes, mounted inside a duct having a base with an inlet opening and a central body containing a suction box and having a pair of side louvers. It also includes a dihedral deflection member mounted under the main body and having a downward oriented edge, which is adapted for splitting into two secondary flows the flow of fumes drawn from the bottom to the top.
  • reference numeral 1 designates as a whole a fumes suction and/ or filtering hood, in particular for a household kitchen unit, according to the present invention.
  • hood refers herein to an electric appliance which is traditionally installed in a household kitchen and which typically comprises the following functional assemblies:
  • Said hood 1 comprises:
  • said motorized fan 4 is positioned between said inlet section 3 and an outlet section 6, so as to aspirate the fumes from said inlet section 3 and let them out through said outlet section 6; in particular, said motorized fan 4 is positioned near said outlet section 6.
  • the hood 1 comprises a soundproofing structure 7 housed in said chimney 2, so as to define at least one duct, designated as a whole by reference numeral 8 in the annexed drawings, which allows the fumes to flow from said inlet section 3 to said suction volume 5.
  • said inlet section 3, suction volume 5 and soundproofing structure 7 are symmetrical with respect to a common plane of symmetry, indicated in Figs. 2a to 3b by a dashed-dotted line PS.
  • said substantial "X" shape of the duct 8 relates to a front view of the hood 1 according to the present invention.
  • the terms "front”, “rear” and “side” refer to an operating condition of the hood 1 according to the present invention, i.e. a condition wherein said hood 1 is positioned above a cooking top (not shown in the drawings) so as to collect most odours and fumes produced by the latter.
  • the particular shape of the hood 1 according to the present invention allows reducing as much as possible the noisiness of said hood 1, also regardless of the suction speed of the motorized fan 4.
  • the particular shape of the duct 8 provides a non-straight path between said at least one inlet section 3 and the suction volume 5; as a matter of fact, the shape of the duct 8 provides a winding and tortuous path, so that the sound waves produced by the motorized fan 4 must necessarily meet the soundproofing structure 7 of the hood 1 and come out of said hood 1 greatly attenuated.
  • the hood 1 ensures satisfactory comfort in the environment where it is placed, without requiring difficult and expensive realization and installation.
  • the duct 8 of the hood 1 comprises a first lower branch 3A and a second lower branch 3B in correspondence with said inlet section 3; in particular, said first lower branches 3A and second lower branches 3B are obtained by positioning a first partition element 7A in proximity of said inlet section 3; in fact, in the annexed drawings it can be seen that said first 3A and second 3B lower branches are positioned at the sides of said first partition element 7A.
  • said at least one duct 8 comprises a chamber 9 into which said first lower branch 3A and second lower branch 3B meet and from which said suction volume 5 extends.
  • said suction volume 5 extends from a second partition element 7B that faces said chamber 9; in particular, said second partition element 7B is positioned under the motorized fan 4.
  • said motorized fan 4 comprises a centrifugal motor having a mouth 4A for sucking in the air contained in the suction volume 5.
  • the chimney 2 of the hood 1 comprises a rear wall 2P and side walls 2L; also, Fig. 1 shows (by means of dashed lines) a front wall 2A of the hood 1, the front wall 2A not being shown in the annexed drawings for the purpose of illustrating the internal architecture of the hood 1.
  • said soundproofing structure 7 comprises a protrusion 10 projecting towards said chamber 9; preferably, said soundproofing structure 7 is associated with a pair of side walls 2L of the chimney 2, both comprising said protrusion 10.
  • the first partition element 7A and/or the second partition element 7B and/or the protrusion 10 have outer surfaces with sharp edges; it is however clear that the first partition element 7A and/or the second partition element 7B and/or the protrusion 10 may also have bevelled, rounded or radiused outer surfaces, as shown in the representation of Fig. 2b .
  • said first partition element 7A and/ or said second partition element 7B of the hood 1 are made of soundproofing material, in particular coated with a waterproofing material.
  • a waterproofing material prevents the soundproofing material from becoming impregnated with impurities (e.g. fumes, odours and fat molecules) contained in the aspirated air.
  • said soundproofing material may consist of a thermosetting resin foam, e.g. foam melamine.
  • the soundproofing structure 7 and the protrusion 10 may also be coated with said waterproofing material.
  • hood 1 may comprise filtering means (not shown in the annexed drawings), which filter the air in order to trap said impurities contained in the aspirated air.
  • such advantages consist in the fact that the particular shape of the hood 1 and, most importantly, the particular "X" shape of the duct 8 allow reducing as much as possible the noisiness of the hood 1 according to the present invention, also regardless of suction speed.
  • Said "X" shape of the duct 8 provides a non-straight path between said at least one inlet section 3 and the suction volume 5.
  • the path between the inlet section 3 and the suction volume 5 is created by said first lower branch 3A and second lower branch 3B, said chamber 9 and said suction volume 5.
  • hood 1 ensures satisfactory comfort in the environment where it is placed, without requiring difficult and expensive realization and installation.
  • suction hood described herein by way of example may be subject to many possible variations without departing from the novelty spirit of the inventive idea; it is also clear that in the practical implementation of the invention the illustrated details may have different shapes or be replaced with other technically equivalent elements.
  • FIGs. 3a and 3b show a front view of a variant of the hood 1 of Figs. 2a and 2b .
  • said hood 1 comprises a septum 11 adapted to divide said chamber 9 in a substantially vertical manner.
  • said septum 11 is associated with said first partition element 7A and second partition element 7B; the septum 11 may be separate from said first partition element 7A and second partition element 7B (as shown in Fig. 3a ), or it may be manufactured as one piece with said first 7A and second 7B partition elements (as shown in Fig. 3b ).
  • the septum 11 is substantially positioned in such a way as to match at least one stretch of said plane of symmetry PS.
  • first partition element 7A and/or the second partition element 7B and/or the protrusion 10 may have outer surfaces with sharp edges (as shown in the representation of Fig. 3a ), or said elements may have bevelled, rounded or radiused outer surfaces (as shown in the representation of Fig. 3b ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Prevention Of Fouling (AREA)

Claims (14)

  1. Dunstabsaugungs- und/oder Filterabzugshaube (1), insbesondere für eine Haushaltskücheneinheit, umfassend:
    - einen innen hohlen Kamin (2);
    - einen Dunsteinlassabschnitt (3) in dem Kamin (2);
    - einen motorisierten Ventilator (4), welches in dem Kamin (2) auf der dem Einlassabschnitt (3) gegenüberliegenden Seite untergebracht ist;
    - ein Absaugvolumen (5), welches innerhalb des Kamins (2) seitlich zu dem motorisierten Ventilator (4) angeordnet ist;
    - eine Schalldämmungsstruktur (7), welche in dem Kamin (2) so untergebracht ist, um zumindest eine Leitung (8) zu definieren, welche dem Dunst erlaubt, von dem Einlassabschnitt (3) zu dem Absaugvolumen (5) zu fließen,
    wobei der Einlassabschnitt (3), das Absaugvolumen (5) und die Schalldämmungsstruktur (7) relativ zu einer gemeinsamen Symmetrieebene (PS) symmetrisch sind,
    dadurch gekennzeichnet, dass:
    i) betrachtet man irgendeinen Punkt des Einlassabschnitts (3) und irgendeinen Punkt des Absaugvolumens (5), welche auf der gleichen Seite in Bezug auf die Symmetrieebene (PS) angeordnet sind, eine gerade Linie, die solche Punkte verbindet, die Schalldämmungsstruktur (7) schneidet und
    ii) die zumindest eine Leitung (8) so gestaltet ist, dass sie im Wesentlichen "X" förmig ist.
  2. Haube (1) nach Anspruch 1, dadurch gekennzeichnet, dass die zumindest eine Leitung (8) einen ersten unteren Abzweig (3A) und eine zweiten unteren Abzweig (3B) korrespondierend mit dem Einlassabschnitt (3) umfasst.
  3. Haube (1) nach Anspruch 2, dadurch gekennzeichnet, dass der erste untere Abzweig (3A) und der zweite untere Abzweig (3B) durch Positionieren eines ersten Trennwandelements (7A) in der Nähe des Einlassabschnitts (3) erhalten werden.
  4. Haube (1) nach einem oder mehreren der Ansprüche 2 und 3, dadurch gekennzeichnet, dass die zumindest eine Leitung (8) eine Kammer (9) umfasst, in welcher der erste untere Abzweig (3A) und der zweite untere Abzweig (3B) sich treffen und von der sich das Absaugvolumen (5) erstreckt.
  5. Haube (1) nach Anspruch 4, dadurch gekennzeichnet, dass das Absaugvolumen (5) sich von einem zweiten Trennwandelement (7B), welches der Kammer (9) gegenüber liegt, erstreckt.
  6. Haube (1) nach Anspruch 5, dadurch gekennzeichnet, dass das zweite Trennwandelement (7B) unter dem motorisierten Ventilator (4) positioniert ist.
  7. Haube (1) nach einem oder mehreren der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass der motorisierte Ventilator (4) einen Zentrifugalmotor mit einem Mund (4A) zum Einsaugen der Luft in dem Absaugvolumen (5) umfasst.
  8. Haube (1) nach einem oder mehreren der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass die Schalldämmungsstruktur (7) einen Vorsprung (10) umfasst, welcher zu der Kammer (9) hin vorspringt, wobei insbesondere die Schalldämmungsstruktur (7) mit einem Paar Seitenwänden (2L) des Kamins (2) assoziiert ist, wobei beide Seitenwänden (2L) den Vorsprung (10) umfassen.
  9. Haube (1) nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das erste Trennwandelement (7A) und/oder das zweite Trennwandelement (7B) und/oder der Vorsprung (10) äußere Oberflächen mit scharfen Ecken aufweisen.
  10. Haube (1) nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das erste Trennwandelement (7A) und/oder das zweite Trennwandelement (7B) und/oder der Vorsprung (10) abgeschrägte, gerundete oder abgerundete äußere Oberflächen aufweisen.
  11. Haube (1) nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das erste Trennwandelement (7A) und/oder das zweite Trennwandelement (7B) aus einem schalldämmenden Material, insbesondere beschichtet mit einem wasserdichtenden Material, hergestellt sind.
  12. Haube (1) nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es Luftfiltermittel enthält, die jegliche in der angesaugten Luft enthaltenen Unreinheiten einfangen.
  13. Haube (1) nach einem oder mehreren der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass es eine Scheidewand (11) umfasst, welches ausgelegt ist, die Kammer (9) in einer im Wesentlichen vertikalen Weise zu teilen.
  14. Haube (1) nach Anspruch 13, dadurch gekennzeichnet, dass die Scheidewand (11) mit dem ersten (7A) und dem zweiten (7B) Trennwandelement assoziiert ist.
EP12726184.0A 2011-04-20 2012-04-18 Dunstabzugs- und/oder filterhaube, insbesondere für ein küchennaushaltsgerät Active EP2699849B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000350A ITTO20110350A1 (it) 2011-04-20 2011-04-20 Cappa per l'aspirazione e/o la filtrazione di fumi, in particolare per una cucina domestica
PCT/IB2012/051937 WO2012143864A1 (en) 2011-04-20 2012-04-18 Fumes suction and/or filtering hood, in particular for a household kitchen unit

Publications (2)

Publication Number Publication Date
EP2699849A1 EP2699849A1 (de) 2014-02-26
EP2699849B1 true EP2699849B1 (de) 2017-05-17

Family

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Application Number Title Priority Date Filing Date
EP12726184.0A Active EP2699849B1 (de) 2011-04-20 2012-04-18 Dunstabzugs- und/oder filterhaube, insbesondere für ein küchennaushaltsgerät

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EP (1) EP2699849B1 (de)
IT (1) ITTO20110350A1 (de)
WO (1) WO2012143864A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013100130U1 (de) * 2013-01-11 2014-04-14 Carcoustics Techconsult Gmbh Akustisches Dämpfungselement für ein Haushaltsgerät, insbesondere für eine Dunstabzugshaube; Haushaltsgeräte mit akustischem Dämpfungselement
CN103322606A (zh) * 2013-04-18 2013-09-25 上海玖通风机有限公司 组合式油烟净化设备
DE102013012677A1 (de) 2013-07-31 2015-02-05 Mann + Hummel Gmbh Verfahren zum abtrennen von blutplasma/serum von vollblut
DE102013012678A1 (de) 2013-07-31 2015-02-05 Mann + Hummel Gmbh Flachfiltermedien zur abtrennung von plasma oder serum von vollblut
DE102015100564B4 (de) * 2015-01-15 2021-07-22 Miele & Cie. Kg Dunstabzugshaube
IT201900000052A1 (it) * 2019-01-03 2020-07-03 Elica Spa Cappa per l'aspirazione di fumi di cottura comprendente un elemento divisorio per il condotto di aspirazione
CN114646080A (zh) * 2020-12-18 2022-06-21 香港大学浙江科学技术研究院 抽油烟机

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Publication number Priority date Publication date Assignee Title
NL262265A (de) * 1960-03-11 1900-01-01
US3330379A (en) * 1964-11-12 1967-07-11 Loren Cook Company Device for attenuating sound waves and the combination thereof with a curb and ventilator
US3642093A (en) * 1970-02-12 1972-02-15 Barber Colman Co Sound attenuator with fluidic control
US5983888A (en) * 1999-04-07 1999-11-16 Whirlpool Corporation Low noise cooker hood
FR2911520B1 (fr) * 2007-01-19 2009-08-28 Roblin Sas Soc Par Actions Sim Hotte aspirante pour cuisine
IT1404076B1 (it) * 2011-02-08 2013-11-08 Falmec S P A Apparecchiatura di aspirazione.

Non-Patent Citations (1)

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Title
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Publication number Publication date
EP2699849A1 (de) 2014-02-26
ITTO20110350A1 (it) 2012-10-21
WO2012143864A1 (en) 2012-10-26

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