EP2472018A1 - Schalldämmungsanordnung - Google Patents

Schalldämmungsanordnung Download PDF

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Publication number
EP2472018A1
EP2472018A1 EP11195991A EP11195991A EP2472018A1 EP 2472018 A1 EP2472018 A1 EP 2472018A1 EP 11195991 A EP11195991 A EP 11195991A EP 11195991 A EP11195991 A EP 11195991A EP 2472018 A1 EP2472018 A1 EP 2472018A1
Authority
EP
European Patent Office
Prior art keywords
micro
perforations
supports
acoustic
acoustic assembly
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
EP11195991A
Other languages
English (en)
French (fr)
Other versions
EP2472018B1 (de
Inventor
Jean-Marc Scherrer
Christian Nocke
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.)
Normalu SAS
Original Assignee
Normalu SAS
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 Normalu SAS filed Critical Normalu SAS
Priority to PL11195991T priority Critical patent/PL2472018T3/pl
Publication of EP2472018A1 publication Critical patent/EP2472018A1/de
Application granted granted Critical
Publication of EP2472018B1 publication Critical patent/EP2472018B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/99—Room acoustics, i.e. forms of, or arrangements in, rooms for influencing or directing sound
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/8409—Sound-absorbing elements sheet-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/001—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by provisions for heat or sound insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/30—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall
    • E04B9/303—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall for flexible tensioned membranes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0867—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having acoustic absorption means on the visible surface
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/8281—Flat elements mounted parallel to a supporting surface with an acoustically active air gap between the elements and the mounting surface

Definitions

  • the present invention relates to an acoustically absorbent assembly intended to constitute a wall element disposed in an enclosure, such as for example an apartment, a concert hall, the passenger compartment of a vehicle, etc., and for controlling the state of sound absorption of it.
  • the absorption spectrum that is to say the curve representing the variation of the absorption of the global wall as a function of the sound frequency emitted, is related to the diameter of the micro-perforations, and that all the parameters being equal, the ⁇ global absorption was better in the high frequencies when the diameters of the micro-perforations were greater. Conversely, for micro-perforations of smaller diameter absorption was improved at low frequencies.
  • an acoustic absorbent assembly intended to constitute, within an enclosure, at least one wall element, this assembly comprising one or two supports provided with micro-perforations whose diameter is less than 2 mm, remarkable in that that or the supports extend substantially parallel to an adjacent wall, and the acoustic assembly comprises at least two sets of micro-perforations distributed on said support.
  • the acoustic assembly described above is less effective for the absorption of frequencies between 4000 and 8000 Hz.
  • the object of the present invention is to provide an acoustic assembly having an enlarged sound absorption band with respect to acoustic assemblies of the prior art, this acoustic assembly being intended to constitute, for example, a false wall of a room that is ie a partition or a ceiling, but also a lining of a vehicle etc.
  • the subject of the present invention is thus an acoustic absorbent assembly intended to constitute, within an enclosure, at least one wall element, this assembly comprising at least two supports provided with micro-perforations, remarkable in that said supports are superimposed.
  • said supports do not comprise several series of micro-perforations having different diameters.
  • the acoustic assembly may consist of two supports (rigid wall or stretched fabric) each provided with a series of orifices which are distributed in a regular manner on the surface said supports forming respective meshes either of square shape or of triangular shape.
  • This acoustic unit retains its acoustic absorption capacity even when it is placed behind a support that does not include micro-perforations or when it frames a support that does not include micro-perforations.
  • the present application also relates to an acoustic absorbent assembly intended to constitute, within an enclosure, at least one wall element, this assembly comprising a support comprising no micro-perforations, at least two supports provided with a microphone.
  • the visible element consists of the support not comprising micro-perforations. This is particularly advantageous because it is thus possible to exploit the aesthetic virtues (for example printing, lacquering) of the support element which does not include micro-perforations.
  • the present application also relates to an acoustic absorbent assembly intended to constitute, within an enclosure, at least one wall element, this assembly comprising a support comprising no micro-perforations, at least two supports provided with micro-perforations. perforations, characterized in that said supports are superimposed.
  • the acoustic assembly according to the invention consists of at least three parallel supports each comprising a series of micro-perforations, as defined above, remarkable in that said supports are superimposed.
  • the acoustic assembly according to the invention consists of three parallel supports each comprising a series of micro-perforations, remarkable in that said supports are superimposed.
  • the support comprising a series of micro-perforations closest to the adjacent wall is preferably 50 mm away from the support having a series of contiguous micro-perforations.
  • the support comprising a series of micro-perforations farthest from the adjacent wall is preferably 30 mm apart from the support comprising a series of contiguous micro-perforations.
  • said supports extend substantially parallel to each other.
  • said supports are in planes forming between them an angle of between 1 and 45 degrees.
  • the supports of the acoustic assembly according to the invention consist of stretched sheets, in particular made of polyvinyl chloride (PVC) films, the thickness of which will preferably be between 0.1 and 0.3 mm, but may also be be formed of rigid elements.
  • PVC polyvinyl chloride
  • the supports of the acoustic assembly according to the invention consist of textiles or other flexible or rigid materials.
  • the distance between the various supports each comprising a series of micro-perforations is preferably between 10 and 90 mm and even more preferably between 20 and 60 mm.
  • the distance between the acoustic assembly according to the invention and said adjacent wall is preferably between 100 and 400 mm and even more preferably between 250 and 350 mm.
  • the micro-perforations are circular in shape and preferentially distributed in a mesh of square, triangular or rectangular shape.
  • the micro-perforations have a diameter of less than 2 mm, even more preferentially less than 1 mm and quite preferentially less than or equal to 0.5 mm.
  • the supports comprising a series of micro-perforations have a micro-perforation density greater than 1000 micro-perforations / m 2 , plus preferably greater than 30 000 micro-perforations / m 2 , even more preferably greater than 300 000 micro-perforations / m 2 and quite preferably greater than 400 000 micro-perforations / m 2 .
  • Those skilled in the art are able to determine the optimal micro-perforation density as a function of. This may in particular be adapted according to the nature of the material constituting said support.
  • the supports used in the context of the present invention are advantageously provided with a peripheral edge forming a harpoon. Said harpoon allows the fixing of the supports according to the invention to longitudinal members.
  • said spar is a smooth.
  • all the supports included in the acoustic assembly according to the invention are fixed on the same rail.
  • FIG. 1 a canvas 3, implemented in particular to figures 2 , 4 , 6 and 8 , which is provided with micro-perforations d1 which are evenly distributed over its entire surface (300 000 micro-perforations / m2). These perforations, which are circular in shape, have a diameter of 0.2 mm.
  • the figures 2 and 4 show a first embodiment of the acoustic assembly 1 according to the invention.
  • This assembly comprises a support not comprising micro-perforations 2 (here a PVC stretched fabric) and two supports provided with micro-perforations 3 as described in FIG. figure 1 . All of these supports extend substantially parallel to an adjacent wall and the supports provided with micro-perforations are placed between the support comprising no micro-perforations and an adjacent wall.
  • the spaces delimited by the supports are open towards the outside.
  • the spaces delimited by the supports are closed.
  • the absorption maximum of this set is at a frequency of the order of 1000 Hz and that for an absorption of 0.5 it extends to a frequency of approximately 500. Hz up to about 2,500 Hz, or about a frequency range of the order of 2000 Hz.
  • the absorption maximum of this set 1 is at a frequency of the order of 800 Hz and that for an absorption of 0.5 it ranges from a frequency of approximately 150 Hz up to about 1800 Hz, or about a frequency range of the order of 1.650 Hz.
  • the figures 6 and 8 show another embodiment of the acoustic assembly 1 according to the invention.
  • This acoustic assembly consists of three parallel supports 3 each having a series of micro-perforations whose diameter is less than 2mm. In the case presented to figure 6 the spaces delimited by the supports 3 are open towards the outside. In the case presented to figure 8 the spaces delimited by the supports 3 are closed.
  • FIG. figure 7 a diagram showing the absorption spectrum obtained by the acoustic assembly 1 represented in FIG. figure 6 thus constituted according to the sound frequency applied. It can thus be seen in this figure that an absorption maximum of this set is at a frequency of 1000 Hz and 8000 Hz and that for an absorption of 0.5 it extends to a frequency of approximately 300. Hz up to about 8000 Hz, or about a frequency range of the order of 7300 Hz.
  • FIG. figure 9 a diagram showing the absorption spectrum obtained by the acoustic assembly 1 represented in FIG. figure 8 thus constituted according to the sound frequency applied. It can thus be seen from this figure that the absorption maximum of this set 1 is at a frequency of the order of 2000 Hz and that for an absorption of 0.5 it extends with a frequency of about 140 Hz up to about 5000 Hz, or about a frequency interval of the order of 4860 Hz.
  • the present invention therefore makes it possible to substantially extend the width of the sound spectrum for which the absorption obtained is effective.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Building Environments (AREA)
  • Percussion Or Vibration Massage (AREA)
EP11195991.2A 2010-12-30 2011-12-29 Schalldämmungsanordnung Active EP2472018B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11195991T PL2472018T3 (pl) 2010-12-30 2011-12-29 Akustyczny zespół pochłaniający

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1005190A FR2970009B1 (fr) 2010-12-30 2010-12-30 Ensemble acoustiquement absorbant

Publications (2)

Publication Number Publication Date
EP2472018A1 true EP2472018A1 (de) 2012-07-04
EP2472018B1 EP2472018B1 (de) 2020-03-25

Family

ID=44462003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11195991.2A Active EP2472018B1 (de) 2010-12-30 2011-12-29 Schalldämmungsanordnung

Country Status (4)

Country Link
EP (1) EP2472018B1 (de)
ES (1) ES2790950T3 (de)
FR (1) FR2970009B1 (de)
PL (1) PL2472018T3 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014102473A1 (fr) * 2012-12-31 2014-07-03 Jean-Marc Scherrer Ensemble etanche et acoustiquement absorbant pour fausse paroi
WO2015132521A1 (fr) * 2014-03-04 2015-09-11 Jean-Marc Scherrer Ensemble d'absorption acoustique a hautes et basses frequences
WO2016087587A1 (en) 2014-12-05 2016-06-09 Eleda S.R.L. Sound-absorbing element and system
US20170342711A1 (en) * 2014-11-26 2017-11-30 Normalu Stretched-web structure for producing a false ceiling or a dropped ceiling box
USD894429S1 (en) 2018-04-13 2020-08-25 Caimi Brevetti S.P.A. Sound absorbing panel
USD895158S1 (en) 2018-04-13 2020-09-01 Caimi Brevetti S.P.A. Sound absorbing panel
USD895159S1 (en) 2018-04-13 2020-09-01 Caimi Brevetti S.P.A. Sound absorbing panel
US20220148550A1 (en) * 2019-03-04 2022-05-12 Corning Incorporated Micro-perforated panel systems, applications, and methods of making micro-perforated panel systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013513A1 (de) * 1979-01-04 1980-07-23 Daempa A/S Schalldämmende Struktur
DE4408782A1 (de) * 1994-03-15 1995-09-21 Fraunhofer Ges Forschung Folien-Schallabsorber
DE10022902A1 (de) * 1999-08-11 2001-03-08 Hp Chem Pelzer Res & Dev Ltd Bauteil mit hoher absorptiver Wirkung über einem breiten Frequenzbereich
WO2008017737A1 (fr) * 2006-08-10 2008-02-14 Brevetix Ensemble acoustiquement absorbant
EP2078796A1 (de) * 2008-01-09 2009-07-15 Normalu Gewebelage für schallgedämmte Spannwände, die teilweise durchsichtig sind

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013513A1 (de) * 1979-01-04 1980-07-23 Daempa A/S Schalldämmende Struktur
DE4408782A1 (de) * 1994-03-15 1995-09-21 Fraunhofer Ges Forschung Folien-Schallabsorber
DE10022902A1 (de) * 1999-08-11 2001-03-08 Hp Chem Pelzer Res & Dev Ltd Bauteil mit hoher absorptiver Wirkung über einem breiten Frequenzbereich
WO2008017737A1 (fr) * 2006-08-10 2008-02-14 Brevetix Ensemble acoustiquement absorbant
EP2078796A1 (de) * 2008-01-09 2009-07-15 Normalu Gewebelage für schallgedämmte Spannwände, die teilweise durchsichtig sind

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10260231B2 (en) 2012-12-31 2019-04-16 Jean-Marc Scherrer Hermetic and acoustically absorbent assembly for a false partition
FR3000509A1 (fr) * 2012-12-31 2014-07-04 Jean-Marc Scherrer Ensemble etanche et acoustiquement absorbant pour fausse paroi
CN105051295A (zh) * 2012-12-31 2015-11-11 J-M·谢乐 用于假隔板的密封且吸声的组件
JP2016508195A (ja) * 2012-12-31 2016-03-17 シェレル ジャン−マルクＳＣＨＥＲＲＥＲ Ｊｅａｎ−Ｍａｒｃ 疑似隔板のための密閉した吸音アセンブリ
WO2014102473A1 (fr) * 2012-12-31 2014-07-03 Jean-Marc Scherrer Ensemble etanche et acoustiquement absorbant pour fausse paroi
AU2013369101B2 (en) * 2012-12-31 2018-05-10 Jean-Marc Scherrer Hermetic and acoustically absorbent assembly for false wall
WO2015132521A1 (fr) * 2014-03-04 2015-09-11 Jean-Marc Scherrer Ensemble d'absorption acoustique a hautes et basses frequences
FR3018384A1 (fr) * 2014-03-04 2015-09-11 Jean-Marc Scherrer Ensemble d'absorption acoustique a hautes et basses frequences
CN106103858B (zh) * 2014-03-04 2021-11-16 J-M·谢乐 高低频率吸声组件
CN106103858A (zh) * 2014-03-04 2016-11-09 J-M·谢乐 高低频率吸声组件
US10109269B2 (en) 2014-03-04 2018-10-23 Jean-Marc Scherrer High and low frequency sound absorption assembly
US20170342711A1 (en) * 2014-11-26 2017-11-30 Normalu Stretched-web structure for producing a false ceiling or a dropped ceiling box
US10774530B2 (en) * 2014-11-26 2020-09-15 Normalu Stretched-web structure for producing a false ceiling or a dropped ceiling box
US10508453B2 (en) 2014-12-05 2019-12-17 Eleda S.R.L. Sound-absorbing element and system
WO2016087587A1 (en) 2014-12-05 2016-06-09 Eleda S.R.L. Sound-absorbing element and system
USD894429S1 (en) 2018-04-13 2020-08-25 Caimi Brevetti S.P.A. Sound absorbing panel
USD895158S1 (en) 2018-04-13 2020-09-01 Caimi Brevetti S.P.A. Sound absorbing panel
USD895159S1 (en) 2018-04-13 2020-09-01 Caimi Brevetti S.P.A. Sound absorbing panel
US20220148550A1 (en) * 2019-03-04 2022-05-12 Corning Incorporated Micro-perforated panel systems, applications, and methods of making micro-perforated panel systems

Also Published As

Publication number Publication date
FR2970009A1 (fr) 2012-07-06
PL2472018T3 (pl) 2020-08-10
EP2472018B1 (de) 2020-03-25
ES2790950T3 (es) 2020-10-30
FR2970009B1 (fr) 2021-06-11

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