EP1570139B1 - Panneau acoustique a double paroi. - Google Patents

Panneau acoustique a double paroi. Download PDF

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Publication number
EP1570139B1
EP1570139B1 EP03789519A EP03789519A EP1570139B1 EP 1570139 B1 EP1570139 B1 EP 1570139B1 EP 03789519 A EP03789519 A EP 03789519A EP 03789519 A EP03789519 A EP 03789519A EP 1570139 B1 EP1570139 B1 EP 1570139B1
Authority
EP
European Patent Office
Prior art keywords
acoustic panel
panel according
plate
acoustic
sound absorber
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.)
Expired - Lifetime
Application number
EP03789519A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1570139A1 (fr
Inventor
Michel Pompei
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.)
Hutchinson SA
Original Assignee
Hutchinson SA
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 Hutchinson SA filed Critical Hutchinson SA
Publication of EP1570139A1 publication Critical patent/EP1570139A1/fr
Application granted granted Critical
Publication of EP1570139B1 publication Critical patent/EP1570139B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04B1/62—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
    • E04B1/86—Sound-absorbing elements slab-shaped
    • 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
    • E04B1/88—Insulating elements for both heat and sound
    • E04B1/90—Insulating elements for both heat and sound slab-shaped
    • 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
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • 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
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling

Definitions

  • the present invention relates to an acoustic panel with two walls between which is disposed an acoustic absorbent.
  • the efficiency of the absorbent can be improved by creating an air gap between the acoustic absorber and the wall that receives the acoustic excitation.
  • the present invention relates to an acoustic panel of the aforementioned type whose structure can advantageously create this air gap.
  • CH-A-679167 discloses an acoustic panel which has the features of the preamble of claim 1.
  • the invention is defined by the acoustic panel of claim 1.
  • the invention thus relates to an acoustic panel comprising a first and a second wall between which is disposed an acoustic absorbent characterized in that, the first wall has, on an inner face facing the acoustic absorber, a plate made of a viscoelastic material, as well as a backing plate, spacing elements (for example parallel grooves, honeycombs, embossing, and / or pins) being distributed in at least one dimension and creating an air gap between the absorbent and the counter plate.
  • spacing elements for example parallel grooves, honeycombs, embossing, and / or pins
  • the spacer elements may form a two-dimensional network, for example a grid or a honeycomb or an embossing or even pins distributed along these two dimensions.
  • the grid, the honeycomb or the embossing may constitute a net or a bag inside which the acoustic absorbent is placed.
  • the net or the bag may be of a thermally conductive material so that it constitutes a heat sink between said walls.
  • a self-adhesive film carrying said network may be adhered to the acoustic absorbent, in particular on a packaging of the acoustic absorbent, or on the backing plate.
  • the backing plate is stiffened by an embossing, ribs parallel or not, a honeycomb, pins or bosses.
  • the acoustic panel has a first plate 1 which receives the acoustic excitation (arrow F) when the panel is put in place, a second wall 2 and an acoustic absorbent 3, for example glass wool which can be contained in a thin envelope 4 in "Mylar” (Trademark of du Pont).
  • the plate 1 has on its inner face a plate 17 of viscoelastic material (for example the "Deltane” material from the PAULSTRA Company).
  • a plate 17 of viscoelastic material for example the "Deltane” material from the PAULSTRA Company.
  • the air knife is made using a mechanical spacer constituted by a grid or an embossing 5, which can be secured to a rigid counterplate 10, or by an embossed counterplate.
  • the shape of the mesh may be arbitrary, but its size must be such that under the action of the pressures experienced by the absorbent, it must not exceed the area defined by the mesh so that it can not come in contact with the counterplate 10 and that the air gap keeps the desired thickness.
  • the nature of the material constituting the roasting is chosen according to the environmental constraints of the intended application. This material can be malleable to allow the mesh to marry complicated shapes, provided that during the deformation and under the mounting or use pressures the absorbent 3 can not come into contact with the counterplate 10.
  • the grid 5 defined can be glued to the inner face of the plate against-10 taking the precaution that the glue does not fill the mesh of the mesh to avoid contact with the sound absorbent.
  • Absorbent 3 is low density glass wool contained in a thin "Mylar" (trademark) envelope.
  • the spacer may be a wire mesh of 0.5 mm diameter stainless steel and whose mesh is a square of 10 mm side.
  • the reduction in transparency is of the order of 3 to 4 dB.
  • a mesh too small leads to a large bonding surface between the counterplate 10 and the absorbent 3, which reduces the performance.
  • the netting 8 can be substituted for the netting 8 (FIG. 4) evenly distributed on the inner surface 11 of the counter plate 10. This can be done using a self-adhesive film 9 which carries these pins 8 and which is glued on the surface 11. Alternatively, this film 9 can be just as well glued on the absorbent 3 or its packaging 4 as it exists for some glass wool.
  • the mesh 5 may constitute a net in which the absorbent 3 is placed.
  • the plate 1 has on its inner face a plate of viscoelastic material 17 (for example the "Deltane” material from the company PAULSTRA) and a counter plate 10 which is embossed in order to to stiffen it and which serves to damp the vibrations of the plate 1 subjected to excitation.
  • a plate of viscoelastic material 17 for example the "Deltane” material from the company PAULSTRA
  • a counter plate 10 which is embossed in order to to stiffen it and which serves to damp the vibrations of the plate 1 subjected to excitation.
  • This configuration makes it possible to lighten the counterplate 10 (and possibly the plate 17) by decreasing its thickness while maintaining its stiffness by means of the inertia of the walls 18 perpendicular to its surface. These serve as spacer to avoid the contact of the absorbent with the counterplate ( Figures 5 to 7).
  • the counter-plate 10 may be constituted by a glued plate 20 carrying ridges 18 in one or two dimensions.
  • the spacers 18 are ribs of the counterplate 10 formed in one dimension and spaced from each other, generally with a constant pitch.
  • the ribs 18 (distributed in one or two dimensions) of the counter-plate 10 are sufficiently wide for the plate 17 made of viscoelastic material to occupy the hollow portion 19 (see in particular the box of FIG. ).
  • a 1.2 mm thick aluminum wall 1 is damped on the one hand by a sheet 17 made of 1 mm thick viscoelastic material and on the other by an aluminum flat backplate of 0 mm. , 5 mm thick.
  • An aluminum wall 1 of 1.2 mm thick is damped on the one hand by a sheet 17 of viscoelastic material 0.5 mm thick and on the other hand by a counterplate 10 made of aluminum.
  • 0.3 mm thick embossed with a square mesh of 10 mm side and a rib height of 2 mm (see Figure 6).

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vibration Prevention Devices (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP03789519A 2002-12-02 2003-11-27 Panneau acoustique a double paroi. Expired - Lifetime EP1570139B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0215119A FR2847919B1 (fr) 2002-12-02 2002-12-02 Panneau acoustique a double paroi
FR0215119 2002-12-02
PCT/FR2003/003513 WO2004053246A1 (fr) 2002-12-02 2003-11-27 Panneau acoustique a double paroi.

Publications (2)

Publication Number Publication Date
EP1570139A1 EP1570139A1 (fr) 2005-09-07
EP1570139B1 true EP1570139B1 (fr) 2006-12-13

Family

ID=32309891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03789519A Expired - Lifetime EP1570139B1 (fr) 2002-12-02 2003-11-27 Panneau acoustique a double paroi.

Country Status (7)

Country Link
US (1) US20060124388A1 (es)
EP (1) EP1570139B1 (es)
AT (1) ATE348226T1 (es)
DE (1) DE60310451T2 (es)
ES (1) ES2279214T3 (es)
FR (1) FR2847919B1 (es)
WO (1) WO2004053246A1 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7503428B1 (en) * 2002-06-12 2009-03-17 L.J. Avalon, L.L.C. Acoustic panel
US8495851B2 (en) * 2004-09-10 2013-07-30 Serious Energy, Inc. Acoustical sound proofing material and methods for manufacturing same
FR2889616B1 (fr) * 2005-08-02 2008-05-30 Hutchinson Sa Panneau acoustique du type a lame d'air
AT503236B1 (de) * 2005-10-28 2009-01-15 Berger Johann Bauplatte od. dgl., deren herstellung und verwendung
US8191678B2 (en) * 2006-01-19 2012-06-05 Se Electronics International, Inc. Apparatus for absorbing acoustical energy and use thereof
US7604095B2 (en) * 2006-06-01 2009-10-20 General Electric Company Thermal-acoustic enclosure
US8424251B2 (en) * 2007-04-12 2013-04-23 Serious Energy, Inc. Sound Proofing material with improved damping and structural integrity
US8397864B2 (en) * 2007-04-24 2013-03-19 Serious Energy, Inc. Acoustical sound proofing material with improved fire resistance and methods for manufacturing same
US8181738B2 (en) * 2007-04-24 2012-05-22 Serious Energy, Inc. Acoustical sound proofing material with improved damping at select frequencies and methods for manufacturing same
US8028802B2 (en) * 2008-06-30 2011-10-04 General Electric Company Method and system for damped acoustic panels
TWI651455B (zh) * 2009-01-14 2019-02-21 Kuraray Co., Ltd 隔音板、隔音構造及隔音方法
US8074766B1 (en) 2009-09-08 2011-12-13 Creative Composites, Ltd Multi-layer sound attenuating acoustic panel
JP5459838B2 (ja) * 2009-09-18 2014-04-02 ニチアス株式会社 防音カバー及びその製造方法
US9163398B2 (en) * 2013-05-17 2015-10-20 Purdue Research Foundation Sound barrier systems
US10580396B1 (en) 2017-04-07 2020-03-03 The United States Of America As Represented By The Secretary Of The Navy Acoustically stiff wall
US10300964B2 (en) * 2017-06-19 2019-05-28 Ford Motor Company Vehicle tailgate
DE102017124754A1 (de) * 2017-10-23 2019-04-25 Carcoustics Techconsult Gmbh Isolierelement zur akustischen Abschirmung eines Bauteils mit verbessertem Wärmetransport und Anordnung aus mehreren derartigen Isolierelementen
US11753818B1 (en) * 2019-08-07 2023-09-12 Kelly B. McKenna Acoustic material frame and method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1099185A (en) * 1964-06-01 1968-01-17 Baldwin Ehret Hill Inc Acoustical panels
US4038790A (en) * 1976-09-16 1977-08-02 Paisley John C Partition structure
US4425980A (en) * 1981-12-14 1984-01-17 The Boeing Company Beam dampers for damping the vibrations of the skin of reinforced structures
US4988406A (en) * 1986-11-17 1991-01-29 Soltech, Inc. Insulation device and method of making same
DE3643480A1 (de) * 1986-12-19 1988-07-07 Pape Hans Schallabsorbierende wand- oder deckenverkleidung
CH679167A5 (en) * 1989-06-05 1991-12-31 Matec Holding Sound absorbent constructional component - has grid between vibratory and absorbent mouldings, dividing former into several zones
DE4226342C1 (en) * 1992-08-08 1993-06-24 Guenther 8931 Mickhausen De Wolff Prodn. of insulating material - using sheep wool treated with boron salt soln.
DE4317239A1 (de) * 1993-05-24 1994-12-01 Suleiman Rateb Absorber-, Filter- und Wärmeisoliermatten aus Biofasern und Biomasse
DE19502378A1 (de) * 1994-08-10 1996-02-15 Gefinex Jackon Gmbh Akustikplatte
US20020134615A1 (en) * 2001-02-21 2002-09-26 Herreman Kevin Michael Noise reduction system for kitchen
US7063184B1 (en) * 2002-06-12 2006-06-20 Lahnie Johnson Sound reducing panel

Also Published As

Publication number Publication date
ATE348226T1 (de) 2007-01-15
DE60310451T2 (de) 2007-10-11
EP1570139A1 (fr) 2005-09-07
US20060124388A1 (en) 2006-06-15
FR2847919B1 (fr) 2005-11-11
WO2004053246A1 (fr) 2004-06-24
ES2279214T3 (es) 2007-08-16
FR2847919A1 (fr) 2004-06-04
DE60310451D1 (de) 2007-01-25

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