EP2754967A1 - Hotte aspirante - Google Patents

Hotte aspirante Download PDF

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Publication number
EP2754967A1
EP2754967A1 EP13401137.8A EP13401137A EP2754967A1 EP 2754967 A1 EP2754967 A1 EP 2754967A1 EP 13401137 A EP13401137 A EP 13401137A EP 2754967 A1 EP2754967 A1 EP 2754967A1
Authority
EP
European Patent Office
Prior art keywords
sound
layer
extractor hood
layers
perforated plate
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
EP13401137.8A
Other languages
German (de)
English (en)
Other versions
EP2754967B1 (fr
Inventor
Heinrich Adamietz
Christian Lauderlein
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
Priority to EP17181708.3A priority Critical patent/EP3260782B1/fr
Publication of EP2754967A1 publication Critical patent/EP2754967A1/fr
Application granted granted Critical
Publication of EP2754967B1 publication Critical patent/EP2754967B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the invention relates to an extractor hood according to the preamble of claim 1, comprising a housing with a suction for vapors and a blower unit arranged in the housing whose suction side is fluidically connected to the suction area, wherein the blower unit is at least partially surrounded by a noise barrier, which Disrupting the propagation of the operating noise of the blower unit comprises at least one perforated plate layer and a layer comprising a porous material.
  • a noise reduced cooker hood known.
  • the hood has a housing, the inner surfaces are partially equipped with a sound-absorbing material.
  • Another type of noise reduction is from the utility model DE 299 16 895 known, in which case the inner surface of the fireplace housing of the hood is provided with surface-filling sound-absorbing material.
  • Another embodiment of the prior art discloses the DE 197 06 305 , wherein in the extractor hood described there are two suction fans, which are partially surrounded by a sound-deadening foam molding.
  • the WO 2008/090080 A1 referenced which also discloses noise reduced hood, wherein in the inflow duct of the fan unit sound-absorbing material is provided.
  • noise prevention devices it is considered disadvantageous that substantially only at a thickness of the noise prevention device, which corresponds to about 1 ⁇ 4 of the wavelength in particular the problematic frequencies of sound, a successful noise barrier is achieved. Especially at low frequencies, therefore, very thick noise barriers, in particular sound absorbers, are needed. For example, for the frequency 1000 Hz, this results in an optimum thickness of 80 mm. In most cases, the space, for example, with cooker hoods but only a thickness of the noise barrier device of 10 to 40 mm.
  • the invention thus raises the problem of developing an extractor hood and here in particular a sound obstruction device for an extractor hood, which in such a way overcomes the disadvantages described, wherein the noise prevention device is in particular to be able to provide a broadband noise barrier.
  • an extractor hood according to the invention is characterized in that in the acoustic barrier means a layer comprising a fibrous material is provided, which is arranged relative to the fan unit in front of the layer comprising the porous material, wherein the fibrous material allows the passage of sound and the passage of Fat and moisture at least hampered. It is advantageous that the sound can pass through the layer containing the fibrous material and thus better penetrate into the other layers of the noise prevention device, as is possible in the prior art, where as a protection against grease and moisture, a film-like layer for use comes.
  • the fibrous material may be, for example, a non-woven or the like.
  • the blower unit is associated with a frame frame unit, wherein the noise barrier device comprises at least one cassette-type sound-deadening unit and wherein the cassette-type sound obstruction unit can be removably inserted into the frame frame unit.
  • the noise barrier device comprises at least one cassette-type sound-deadening unit and wherein the cassette-type sound obstruction unit can be removably inserted into the frame frame unit.
  • the sound barrier device is sandwiched and comprises at least one further layer.
  • the noise prevention device hinders sound waves with low frequencies, in particular in the range> 1200 Hz and / or sound waves with high frequencies, in particular in the range ⁇ 1200 Hz and in particular the sound barrier device is designed for broadband noise impairment.
  • This advantageous effect can be achieved by the multi-layered, in particular sandwich-type structure the noise prevention device and in particular by the nature and the order of the individual layers, which are to be selected application-specific depending on the sound frequencies to be obstructed.
  • the sound barrier device comprises as a further layer a soundproof wall, in particular a wall formed from solid sheet metal.
  • the sound barrier device particularly preferably comprises, as a further layer, a stretched elastic membrane, in particular an elastic membrane formed from film, rubber or thin sheet metal, the membrane being attached to a frame or to a previous or subsequent layer of porous material or a layer comprising a perforated sheet, and in particular is glued on.
  • the acoustic barrier device comprises, as a further layer, an air layer, which is arranged in particular between the layer having an elastic membrane and the adjacent layer which has a perforated plate or a soundproof wall, the air layer in particular having a thickness of 1/6 of the total thickness of all layers the noise barrier has.
  • the sound obstructing device comprises at least one layer which at least partially attenuates and / or absorbs the sound and at least one layer which at least partially reflects the sound, wherein a layer comprising a porous material or an elastic membrane comprises a sound-absorbing or sound-absorbing layer Has effect and has a perforated plate or a reverberant wall layer having a sound-reflecting effect.
  • a layer at least partially absorbing or absorbing the sound is arranged between a layer which at least partially reflects the sound and another layer which at least partially reflects the sound.
  • the porous material is a foam, in particular Basotect foam or melamine foam, or rock wool.
  • the mentioned reverberant wall is preferably formed by a wall of the housing of the extractor hood.
  • this comprises at least two layers having a perforated plate, wherein the free surface of the perforation of the perforated plate is in particular at least 60% of the total area of the perforated plate and is greater than in the at least two layers relative to the blower closer the free area of the perforation of the perforated plate of the at least one further layer of these at least two layers, in which the free area of the perforations is in particular at least 40% of the total area of the perforated plate.
  • the noise prevention device preferably comprises at least two layers comprising a porous material, wherein the layer lying closer to the blower unit from this at least two layers has a material with a larger pore diameter or lower density than the porous material of the at least one further layer of these at least two layers.
  • a relatively large-pored porous material for absorbing low frequencies and a relatively small-pored material for absorbing high frequencies is advantageously suitable and provided.
  • the latter comprises at least two layers having an elastic membrane, wherein the elastic membrane is thinner than the elastic membrane of the at least one further layer of the at least two layers in the layer lying closer to these at least two layers relative to the blower unit.
  • the elastic membrane is thinner than the elastic membrane of the at least one further layer of the at least two layers in the layer lying closer to these at least two layers relative to the blower unit.
  • the invention also relates in the same way to the noise prevention device as such for a noise-reduced extractor hood according to the described features.
  • the noise prevention device is preferably constructed in a layer combination of layers with porous material usually rock wool, foam and layers with membrane or plate oscillator.
  • the membrane or the plate vibrator takes the sound of the vibration energy, especially in lower frequencies.
  • the following layer sequence is particularly preferably provided as the structure for a broadband noise barrier:
  • the first layer comprises a perforated plate whose free area is at least 60% of the total area of the perforated plate.
  • the perforation is largely uniformly distributed.
  • the single hole should in this case have an area of not more than 0.005% of the total area of the perforated plate.
  • the second layer has a fleece as a fibrous material, which although a noise-permeable However, it has moisture and grease repellency and therefore acts as a vapor and grease barrier.
  • the third layer used is a porous material mainly consisting of rock wool or foam, for example Basotect foam.
  • the fourth layer in turn comprises a perforated plate whose free area is at least 40% of the total area of the perforated plate.
  • the perforation is evenly distributed, the single hole should hereby have an area of at most about 0.0025% of the total area of the perforated plate.
  • the fifth layer is a thin elastic membrane (plate vibrator), which is stretched on the fourth layer.
  • the sixth layer is kept here as an air layer with a thickness of about 1/6 of the total thickness of the sound barrier device.
  • a seventh layer is provided which may be a soundproof wall such as a solid sheet as a finishing layer.
  • FIG. 1 shows in the perspective view of a sound obstruction device 1, which for a, for example, in FIG. 5 shown hood 15 is determined.
  • a blower unit 2 is arranged in which in the housing 16 of the hood 15, the suction side 3 is in fluid communication with the suction portion 17 of the hood 15.
  • the blower unit 2 is at least partially surrounded by the sound barrier device 1, which prevents the propagation of the operating noise of the blower unit 2, but at least significantly impedes it.
  • the sound obstruction device 1 comprises two sound obstruction units, as shown 4 and 5, which are sandwiched with sound-absorbing and sound-reflecting material layers in order to provide a broadband noise barrier.
  • the cassette-like trained sound obstruction units 4 and 5 are in this case substantially aligned in parallel in the housing 16 of the hood 15 and the blower unit 2, wherein the cassette-like sound obstruction units 4 and 5 can be inserted into and removed from a frame frame unit 20, as in of the FIG. 1 is shown.
  • a noise prevention unit 4, 5 is provided in the frame frame unit 20 on both sides of the blower unit 2.
  • the first layer comprises a perforated plate 6, wherein the free area is at least 60% of the total area of the perforated plate.
  • the perforation is largely uniformly distributed.
  • the second layer in this case has a nonwoven fabric 11 as a fibrous material, which indeed has a noise-permeable but moisture and grease-repellent property and thus acts in particular as a vapor and grease barrier.
  • a porous material 12 consisting of Basotect foam is used here.
  • the fourth layer in turn comprises a perforated plate 7, wherein the free area is at least 40% of the total area of the perforated plate and the perforation is evenly distributed.
  • a thin elastic membrane 13 which is thus clamped on the perforated plate 7 on the fourth layer.
  • the sixth layer is kept here as an air layer 14 with a thickness of approximately 1/6 of the total thickness of the sound obstruction unit 4 or 5.
  • a seventh layer is provided, which is a sound-resistant wall 8 made of a solid sheet as a finishing layer.
  • the reverberant end wall 8 may be the chimney wall of the housing 16 of the hood.
  • the free area of the perforations of the first perforated plate is at least 60% of the total area of the first perforated plate, wherein the free area of the perforations of the second perforated plate 7, not shown in detail, at least 40% of the total area of the second perforated plate 7.
  • the air layer occupies about 1/6 of the total thickness of the sound-deadening unit 4, 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Ventilation (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP13401137.8A 2013-01-11 2013-12-16 Hotte aspirante Active EP2754967B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17181708.3A EP3260782B1 (fr) 2013-01-11 2013-12-16 Hotte aspirante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013100271.4A DE102013100271A1 (de) 2013-01-11 2013-01-11 Dunstabzugshaube

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP17181708.3A Division-Into EP3260782B1 (fr) 2013-01-11 2013-12-16 Hotte aspirante
EP17181708.3A Division EP3260782B1 (fr) 2013-01-11 2013-12-16 Hotte aspirante

Publications (2)

Publication Number Publication Date
EP2754967A1 true EP2754967A1 (fr) 2014-07-16
EP2754967B1 EP2754967B1 (fr) 2020-03-11

Family

ID=49917543

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17181708.3A Active EP3260782B1 (fr) 2013-01-11 2013-12-16 Hotte aspirante
EP13401137.8A Active EP2754967B1 (fr) 2013-01-11 2013-12-16 Hotte aspirante

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP17181708.3A Active EP3260782B1 (fr) 2013-01-11 2013-12-16 Hotte aspirante

Country Status (3)

Country Link
EP (2) EP3260782B1 (fr)
DE (1) DE102013100271A1 (fr)
ES (1) ES2781870T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015213471A1 (de) * 2015-07-17 2017-01-19 Wilhelm Bruckbauer Lüfterbaustein
IT201600102040A1 (it) * 2016-10-11 2018-04-11 Elica Spa Cappa per l’aspirazione di fumi di cottura.
CN108240648A (zh) * 2017-10-31 2018-07-03 宁波方太厨具有限公司 一种吸油烟机的变频降噪出风罩
CN108731072A (zh) * 2018-07-14 2018-11-02 佛山市云米电器科技有限公司 一种带多层蜂巢式噪声过滤装置的油烟机
CN109373396A (zh) * 2018-11-27 2019-02-22 佛山市云米电器科技有限公司 一种具有噪声干涉装置的油烟机
CN112097299A (zh) * 2020-10-13 2020-12-18 杭州老板电器股份有限公司 防渗油降噪组件及吸油烟机
US12079062B2 (en) 2022-10-21 2024-09-03 Quanta Computer Inc. Method and system for providing power saving in computer systems

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015100564B4 (de) * 2015-01-15 2021-07-22 Miele & Cie. Kg Dunstabzugshaube
DE102015101039A1 (de) * 2015-01-26 2016-07-28 Miele & Cie. Kg Dunstabzugshaube
CN107166458A (zh) * 2017-04-24 2017-09-15 杭州老板电器股份有限公司 一种主动有源降噪的油烟机
CN108954436A (zh) * 2018-07-14 2018-12-07 佛山市云米电器科技有限公司 一种带多频率蜂巢式噪声过滤装置的油烟机
CN108954431A (zh) * 2018-07-14 2018-12-07 佛山市云米电器科技有限公司 一种带能降低特定单频率蜂巢式噪声过滤装置的油烟机
CN108954432A (zh) * 2018-07-14 2018-12-07 佛山市云米电器科技有限公司 一种具多频率噪声过滤装置的油烟机

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083704A1 (fr) * 1981-12-24 1983-07-20 FSL Fenster-System-Lüftung GmbH Ventilateur, notamment ventilateur incorporé
US4559255A (en) * 1983-12-26 1985-12-17 Hitachi, Ltd. Acoustical absorbing material
US4838524A (en) * 1987-09-08 1989-06-13 Cyclops Corporation Noise barrier
EP0567366A1 (fr) * 1992-04-22 1993-10-27 Sollac Tôle sandwich
DE4443176C1 (de) 1994-12-05 1996-05-02 Gaggenau Werke Geräuschreduzierte Dunstabzugshaube
DE19706305A1 (de) 1997-02-18 1998-08-20 Bosch Siemens Hausgeraete Dunstabzugshaube
DE29916895U1 (de) 1999-09-24 2000-01-13 Bürcher, Friedrich, 82054 Sauerlach Rahmen aus Profilstäben, und hiermit herstellbare Luftleitungselemente wie eine Dunstabzugshaube und ein Mauerkasten mit Schalldämmung
DE20217398U1 (de) * 2002-11-08 2004-03-18 Jacobs, Heinz-Josef Schalldämpfer mit Lüftungsvorrichtung
EP1628077A1 (fr) * 2003-04-07 2006-02-22 Cata Electrodomésticos S.L. Silencieux pour hottes aspirantes evacuant la fumee
WO2008090080A1 (fr) 2007-01-19 2008-07-31 Roblin Sas Hotte aspirante pour cuisine
WO2009125742A1 (fr) * 2008-04-10 2009-10-15 ブリヂストンケービージー株式会社 Structure composite absorbant les sons
DE202012103799U1 (de) * 2012-10-04 2012-12-10 Faist Chemtec Gmbh Schalldämpfende Sandwichplatte

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4104963C1 (fr) * 1991-02-18 1992-06-25 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De
DE4233312A1 (de) * 1992-10-03 1994-04-07 Ilyas Dipl Ing Oezpolat Dunstabzugsvorrichtung

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083704A1 (fr) * 1981-12-24 1983-07-20 FSL Fenster-System-Lüftung GmbH Ventilateur, notamment ventilateur incorporé
US4559255A (en) * 1983-12-26 1985-12-17 Hitachi, Ltd. Acoustical absorbing material
US4838524A (en) * 1987-09-08 1989-06-13 Cyclops Corporation Noise barrier
EP0567366A1 (fr) * 1992-04-22 1993-10-27 Sollac Tôle sandwich
DE4443176C1 (de) 1994-12-05 1996-05-02 Gaggenau Werke Geräuschreduzierte Dunstabzugshaube
DE19706305A1 (de) 1997-02-18 1998-08-20 Bosch Siemens Hausgeraete Dunstabzugshaube
DE29916895U1 (de) 1999-09-24 2000-01-13 Bürcher, Friedrich, 82054 Sauerlach Rahmen aus Profilstäben, und hiermit herstellbare Luftleitungselemente wie eine Dunstabzugshaube und ein Mauerkasten mit Schalldämmung
DE20217398U1 (de) * 2002-11-08 2004-03-18 Jacobs, Heinz-Josef Schalldämpfer mit Lüftungsvorrichtung
EP1628077A1 (fr) * 2003-04-07 2006-02-22 Cata Electrodomésticos S.L. Silencieux pour hottes aspirantes evacuant la fumee
WO2008090080A1 (fr) 2007-01-19 2008-07-31 Roblin Sas Hotte aspirante pour cuisine
WO2009125742A1 (fr) * 2008-04-10 2009-10-15 ブリヂストンケービージー株式会社 Structure composite absorbant les sons
DE202012103799U1 (de) * 2012-10-04 2012-12-10 Faist Chemtec Gmbh Schalldämpfende Sandwichplatte

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015213471A1 (de) * 2015-07-17 2017-01-19 Wilhelm Bruckbauer Lüfterbaustein
DE102015213471B4 (de) 2015-07-17 2021-11-11 Wilhelm Bruckbauer Lüfterbaustein
IT201600102040A1 (it) * 2016-10-11 2018-04-11 Elica Spa Cappa per l’aspirazione di fumi di cottura.
WO2018069813A1 (fr) * 2016-10-11 2018-04-19 Elica S.P.A. Hotte pour l'aspiration de vapeurs de cuisson
EA035806B1 (ru) * 2016-10-11 2020-08-13 Элика С.П.А. Вытяжка для отвода кухонных паров
CN108240648A (zh) * 2017-10-31 2018-07-03 宁波方太厨具有限公司 一种吸油烟机的变频降噪出风罩
CN108240648B (zh) * 2017-10-31 2023-11-17 宁波方太厨具有限公司 一种吸油烟机的变频降噪出风罩
CN108731072A (zh) * 2018-07-14 2018-11-02 佛山市云米电器科技有限公司 一种带多层蜂巢式噪声过滤装置的油烟机
CN109373396A (zh) * 2018-11-27 2019-02-22 佛山市云米电器科技有限公司 一种具有噪声干涉装置的油烟机
CN112097299A (zh) * 2020-10-13 2020-12-18 杭州老板电器股份有限公司 防渗油降噪组件及吸油烟机
US12079062B2 (en) 2022-10-21 2024-09-03 Quanta Computer Inc. Method and system for providing power saving in computer systems

Also Published As

Publication number Publication date
DE102013100271A1 (de) 2014-07-17
EP2754967B1 (fr) 2020-03-11
EP3260782A1 (fr) 2017-12-27
ES2781870T3 (es) 2020-09-08
EP3260782B1 (fr) 2019-02-27

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