WO2013124069A3 - A sound absorbent - Google Patents

A sound absorbent Download PDF

Info

Publication number
WO2013124069A3
WO2013124069A3 PCT/EP2013/000517 EP2013000517W WO2013124069A3 WO 2013124069 A3 WO2013124069 A3 WO 2013124069A3 EP 2013000517 W EP2013000517 W EP 2013000517W WO 2013124069 A3 WO2013124069 A3 WO 2013124069A3
Authority
WO
WIPO (PCT)
Prior art keywords
layer
cells
cover layer
slit
micro
Prior art date
Application number
PCT/EP2013/000517
Other languages
French (fr)
Other versions
WO2013124069A2 (en
Inventor
Ralf Corin
Original Assignee
Noisetech Hb
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 Noisetech Hb filed Critical Noisetech Hb
Priority to EP13711565.5A priority Critical patent/EP2817799A2/en
Priority to DE13711565.5T priority patent/DE13711565T1/en
Publication of WO2013124069A2 publication Critical patent/WO2013124069A2/en
Publication of WO2013124069A3 publication Critical patent/WO2013124069A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • 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
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
    • E04B1/8209—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 sound absorbing devices
    • 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
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/0442—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like having a honeycomb core
    • 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
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/045—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like being laminated
    • 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
    • E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
    • E04B9/36—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of parallel slats
    • E04B9/366—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of parallel slats the principal plane of the slats being vertical
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • E04C2/365—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels by honeycomb structures
    • 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
    • E04B2001/742—Use of special materials; Materials having special structures or shape
    • E04B2001/747—Corrugated materials
    • 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
    • E04B2001/742—Use of special materials; Materials having special structures or shape
    • E04B2001/748—Honeycomb materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Building Environments (AREA)

Abstract

The present invention relates to a sound absorbent comprising a first cover layer (4), a second cover layer (6) and an intermediate layer (8), said intermediate layer (8) comprising walls (13) delimiting a plurality of cells (12,12a,12b,12c,12d) open in a first end (14) and a second end (16), said cells being arranged adjacent one another, said first open end (14) of said plurality of cells being covered by said first cover layer (4), said second open end (16) of said plurality of cells being covered by said second cover layer (6). In accordance with the invention, said first layer (4) is provided with at least one micro-slit (10) by mechanical machining, the micro-slit (10) extending through said first layer (4), such that sound waves are allowed to penetrate said micro-slit (10) and to enter the first open end (14) of said cell.
PCT/EP2013/000517 2012-02-23 2013-02-22 A sound absorbent WO2013124069A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13711565.5A EP2817799A2 (en) 2012-02-23 2013-02-22 A sound absorbent
DE13711565.5T DE13711565T1 (en) 2012-02-23 2013-02-22 sound absorber

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE1200115-2 2012-02-23
SE1200115 2012-02-23
SE1200253-1 2012-04-26
SE1200253A SE536860C2 (en) 2012-02-23 2012-04-26 A sound absorber

Publications (2)

Publication Number Publication Date
WO2013124069A2 WO2013124069A2 (en) 2013-08-29
WO2013124069A3 true WO2013124069A3 (en) 2013-11-14

Family

ID=47988876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/000517 WO2013124069A2 (en) 2012-02-23 2013-02-22 A sound absorbent

Country Status (4)

Country Link
EP (1) EP2817799A2 (en)
DE (1) DE13711565T1 (en)
SE (1) SE536860C2 (en)
WO (1) WO2013124069A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO337032B1 (en) * 2014-04-29 2016-01-04 Deamp As Sound absorbing film
PL3242293T3 (en) 2016-05-04 2019-05-31 Sontech Int Ab A sound damping device for a duct or chamber
US11207863B2 (en) 2018-12-12 2021-12-28 Owens Corning Intellectual Capital, Llc Acoustic insulator
US11666199B2 (en) 2018-12-12 2023-06-06 Owens Corning Intellectual Capital, Llc Appliance with cellulose-based insulator
BE1027517B1 (en) * 2019-08-23 2021-03-23 Van Eycken Metal Construction Bvba SOUND SCREENS AND METHOD OF MAKING THESE

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3275101A (en) * 1963-12-16 1966-09-27 James G Milne Jr Acoustic structural unit
US3748213A (en) * 1970-03-13 1973-07-24 Rolls Royce Acoustic linings
US3821999A (en) * 1972-09-05 1974-07-02 Mc Donnell Douglas Corp Acoustic liner
DE2438987A1 (en) * 1974-08-14 1976-02-26 Helmut Dr Schmidt Multi layers sound absorbing plate with rigid covering - has foam plastics sound absorbing core and outer casing with holes in it
US3948346A (en) * 1974-04-02 1976-04-06 Mcdonnell Douglas Corporation Multi-layered acoustic liner
US4291080A (en) * 1980-03-31 1981-09-22 Vought Corporation Sound attenuating structural panel
EP0150500A2 (en) * 1984-01-17 1985-08-07 Karl Danzer KG Acoustical panel of agglomerated wood particles provided with tubular cavities
JPH09193266A (en) * 1996-01-17 1997-07-29 Showa Aircraft Ind Co Ltd Curved surface honeycomb panel and manufacture thereof
EP1161360B1 (en) * 1999-05-06 2002-07-24 FAIST Automotive GmbH & Co. KG Sound-shielding element, use thereof and method for producing the same
US20080044621A1 (en) * 2006-06-21 2008-02-21 Ben Strauss Honeycomb with a fraction of substantially porous cell walls
EP1950357A1 (en) * 2007-01-29 2008-07-30 Akustik & Raum AG Acoustic elements
EP2015291A1 (en) * 2007-07-13 2009-01-14 Akustik & Raum AG Acoustic elements
US20100078985A1 (en) * 2008-03-28 2010-04-01 Mahoney James F Engineered Molded Fiberboard Panels. Methods of Making the Panels, and Products Fabricated From the Panels

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US291080A (en) 1884-01-01 peentice
US4479992A (en) 1981-05-28 1984-10-30 Matec Holding Ag Sound absorbing structural element
US4850093A (en) 1987-02-09 1989-07-25 Grumman Aerospace Corporation Method of making an acoustic attenuating liner
SE506188C2 (en) 1996-01-25 1997-11-17 Dale Edward Knipstein Sound absorbing element and method for making this element and use of the element
SE524187C2 (en) * 2002-11-12 2004-07-06 Wellplast Technology Ab Corrugated product
DE102005019433B4 (en) 2005-04-25 2008-08-28 Richter Furniertechnik Gmbh & Co. Kg Lightweight construction board with bilateral planking
DE102007052596A1 (en) * 2007-11-03 2009-05-07 Lothar Betz Pulp composite element
GB2486120B (en) 2010-03-02 2012-10-31 Gkn Aerospace Services Ltd Seamless acoustic liner

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3275101A (en) * 1963-12-16 1966-09-27 James G Milne Jr Acoustic structural unit
US3748213A (en) * 1970-03-13 1973-07-24 Rolls Royce Acoustic linings
US3821999A (en) * 1972-09-05 1974-07-02 Mc Donnell Douglas Corp Acoustic liner
US3948346A (en) * 1974-04-02 1976-04-06 Mcdonnell Douglas Corporation Multi-layered acoustic liner
DE2438987A1 (en) * 1974-08-14 1976-02-26 Helmut Dr Schmidt Multi layers sound absorbing plate with rigid covering - has foam plastics sound absorbing core and outer casing with holes in it
US4291080A (en) * 1980-03-31 1981-09-22 Vought Corporation Sound attenuating structural panel
EP0150500A2 (en) * 1984-01-17 1985-08-07 Karl Danzer KG Acoustical panel of agglomerated wood particles provided with tubular cavities
JPH09193266A (en) * 1996-01-17 1997-07-29 Showa Aircraft Ind Co Ltd Curved surface honeycomb panel and manufacture thereof
EP1161360B1 (en) * 1999-05-06 2002-07-24 FAIST Automotive GmbH & Co. KG Sound-shielding element, use thereof and method for producing the same
US20080044621A1 (en) * 2006-06-21 2008-02-21 Ben Strauss Honeycomb with a fraction of substantially porous cell walls
EP1950357A1 (en) * 2007-01-29 2008-07-30 Akustik & Raum AG Acoustic elements
EP2015291A1 (en) * 2007-07-13 2009-01-14 Akustik & Raum AG Acoustic elements
US20100078985A1 (en) * 2008-03-28 2010-04-01 Mahoney James F Engineered Molded Fiberboard Panels. Methods of Making the Panels, and Products Fabricated From the Panels

Also Published As

Publication number Publication date
WO2013124069A2 (en) 2013-08-29
SE1200253A1 (en) 2013-08-24
SE536860C2 (en) 2014-10-07
DE13711565T1 (en) 2015-06-03
EP2817799A2 (en) 2014-12-31

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