EP1342857A2 - Beschichtungselement mit hohen Schallabsorptionseigenschaften - Google Patents

Beschichtungselement mit hohen Schallabsorptionseigenschaften Download PDF

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Publication number
EP1342857A2
EP1342857A2 EP03075569A EP03075569A EP1342857A2 EP 1342857 A2 EP1342857 A2 EP 1342857A2 EP 03075569 A EP03075569 A EP 03075569A EP 03075569 A EP03075569 A EP 03075569A EP 1342857 A2 EP1342857 A2 EP 1342857A2
Authority
EP
European Patent Office
Prior art keywords
panel
element according
sound
coating
absorbency
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.)
Withdrawn
Application number
EP03075569A
Other languages
English (en)
French (fr)
Other versions
EP1342857A3 (de
Inventor
Angelo Teobaldelli
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.)
Isopol Srl
Original Assignee
Isopol Srl
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 Isopol Srl filed Critical Isopol Srl
Publication of EP1342857A2 publication Critical patent/EP1342857A2/de
Publication of EP1342857A3 publication Critical patent/EP1342857A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0076—Cellular, e.g. as wall facing
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4209—Insulation arrangements, e.g. for sound damping or heat insulation
    • 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
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8442—Tray type elements
    • 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
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • 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
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/8485—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the opening being restricted, e.g. forming Helmoltz resonators
    • 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
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/8495—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the openings going through from one face to the other face of the element

Definitions

  • the present invention refers to elements having special sound-absorbing properties.
  • the invention concerns panels consisting of thermosetting and/or thermoplastic and/or expanded polymers which, given their nature and the specific constructive geometry adopted, allow high sound-absorbency values to be obtained in a wide spectrum of audible frequencies, being able to combine with it heat insulation, coating and/or decorative functions.
  • Such materials comprise open or closed cell polyurethane, capable of being combined with other materials, such as lead, stone/glass wool, or other materials with woven fibres, which exploit the same principle, or panels with variable surface geometry, in general realised with different parallelepipeds.
  • materials with woven fibres and polyurethane have particularly high sound-absorbency characteristics at medium and high frequencies and, moreover, to obtain good results in such a case, it is always necessary to use substantial thicknesses.
  • Coating panels with variable surface geometry currently in use exploit the concept of breaking the parallelity present inside a room, producing a fractioning effect of the sound waves.
  • This type of system whilst it may be advantageous from the point of view of lightness and simplicity of application of the entire structure, nevertheless has a low yield in the absorbency of sound waves according to the audible spectrum and, in particular, has serious drawbacks at low frequencies.
  • the purpose of the present invention is, therefore, that of avoiding the aforementioned drawbacks and, in particular, that of realising free and/or coating elements with high sound-absorbing properties, which ensure better sound absorbency at all audible frequencies, with respect to the prior art.
  • Another purpose of the present invention is that of realising elements with high sound-absorbing properties, which foresees a wide spectrum of selective and adjustable action at the various frequencies, maintaining high sound-absorbency values and, at the same time, limited thickness of the structure.
  • a further purpose is that of realising panels and/or coating elements with high sound-absorbing properties and, in particular, a panel, associated with a sound-absorbing system, which maintains the chemical characteristics of the original materials and has an extremely light, functional, versatile and particularly reliable structure, but/and has, thanks to is special construction, improved sound-absorbency values.
  • the last but not least purpose of the invention is that of realising elements with high sound-absorbing properties in an extremely simple way and with relatively low costs, thanks to the advantages obtained.
  • the panel according to the invention is realised with thermosetting and/or thermoplastic and/or expanded polymers not necessarily having a good sound-absorbency coefficient in the audible frequency spectrum.
  • the specific constructive geometry of such a panel allows with sound-absorbency values to be obtained, even at low frequencies, with a limited thickness of the entire structure, which thus has extremely low bulk and is light with respect to that which can be obtained according to conventional techniques, with the same performance obtained.
  • the innovations of such a panel and of the relative absorbency system allow, in particular, complete conservation of the chemical characteristics of the original materials and allow complete visibility of the sides of the panel itself, which can be treated aesthetically.
  • a panel comprising, by themselves or in combination, thermoplastic, thermosetting or expanded materials, which do not necessarily, by their intrinsic nature, lend themselves particularly to being used in sound absorbency, since they have a low absorbency coefficient in the audible frequency spectrum.
  • a layer of low-density expanded polystyrene, used as the material constituting the panel 10 is indicated with 11.
  • the panel 10 has at the rear, i.e. at the side surface 14, opposite the one which is visible from the outside, a series of special shaped recesses 12, which can be open on the surface and communicating, through suitable small holes 13, with the front face 15.
  • Such recesses 12 can be arranged in various ways and can vary both in shape and in number and/or position, to be able to ensure adequate absorbency of sound waves in the full range of audible frequencies. Moreover, the diameter and/or the number of the holes 13 can vary.
  • the recesses 12 can be closed on the rear surface 14 sealing the panel 10 to a flat wall or using rear panels, constructed with the same material as the panel 10, which carry out a rear covering function.
  • FIG. 3 Such a configuration is illustrated in detail in figure 3, where a rear covering panel, substantially having a lid function, is generically indicated with reference numeral 16.
  • the panel 16, made in one or more portions, can furthermore have a series of holes 17, which may or may not be made at the holes 13 of the structure 11, so as to increase the absorbency of sound frequencies on both rear and front surfaces of the panel 10.
  • the panels 10 having a structure like the one illustrated in figure 1 can also be placed on top of one another, symmetrically or asymmetrically, so as to create different absorbing recesses 12 for different frequencies (see, in particular, figure 4).
  • the absorbency ranges of the panels 10 it is also possible to insert inside the recesses 12 materials of varying nature, including, for example, expanded melammines.
  • the expanded melammine portion generically indicated with 18 in figures 5 and 5A, can totally or partially fill the recesses 12.
  • the aforementioned panel can be used in absorbency systems together with other materials, as in the illustrated example in figure 6, which represents a longitudinal section view of a standard buffering panel for soundproof cabin.
  • the panel object of the invention 10 is coupled at the rear with an outer shell 20 made from steel and foresees, at the front, a layer of glass wool 21, with which a final layer of perforated steel plate 22 is associated.
  • the coating panel 10 can finally realise an absorbing structure like the one illustrated in detail in figure 7.
  • two panels 10, with the same or similar geometry and structure are joined along their rear surfaces 14 and have the recesses 12 facing each other, so that the holes 13 are present on one or the other side of the structure and so that the resulting panel can absorb noise on both faces/sides and the front face of one of the two panels 10 constitutes the rear surface 19 of the entire structure.
  • the coating panel 10 can thus be used, for example, to increase the sound-absorbency at medium frequencies of the spectrum of typical sound-absorbing panels realised with a steel, glass wool, and perforated containment plate shell, normally used in barriers and/or in buffering of soundproof cabins for industrial machinery and/or for domestic appliances where, indeed, to obtain effective sound-absorbency at the lowest frequencies, a thicker and thus bulkier panel is needed.
  • the coating panel 10 is in this case positioned inside the shell of the soundproofing buffering panel (see figure 6) to ensure greater absorbency of sound waves in the whole spectrum of audible frequencies, at the same time maintaining the compactness and lightness of the conventional structure.
  • the coating panel 10 can also be used as an inner coating of washing machine or dishwasher casings, so as to increase the sound-absorbency and, in any case, to avoid mode biasing of the housing. Moreover, it can also be applied in inner coatings of automobiles (roof of the passenger compartment, sun visors) or in engine compartments or under the engine and on bonnets.
  • the panel 10 can be applied directly or indirectly on soundproof screens or road barriers and can be used as an inner coating for ducts or piping of air conditioning units, since it has negligible negative effects upon pressure drops.
  • the panel 10 can be used as an inner coating for the surfaces of rooms of residential buildings (bedroom, living room, office) and as soundproof coating for recording studios, listening rooms, auditoriums, cinemas, etc.
  • the fact that the panel 10 has a smooth front surface 15, besides good sound-absorbency, makes it useful in all applications in which good sound diffusion must be obtained in rooms.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP03075569A 2002-02-28 2003-02-26 Beschichtungselement mit hohen Schallabsorptionseigenschaften Withdrawn EP1342857A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20020409 2002-02-28
IT2002MI000409A ITMI20020409A1 (it) 2002-02-28 2002-02-28 Elemento di rivestimento ad elevate proprieta' fonoassorbente

Publications (2)

Publication Number Publication Date
EP1342857A2 true EP1342857A2 (de) 2003-09-10
EP1342857A3 EP1342857A3 (de) 2004-03-17

Family

ID=11449400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03075569A Withdrawn EP1342857A3 (de) 2002-02-28 2003-02-26 Beschichtungselement mit hohen Schallabsorptionseigenschaften

Country Status (2)

Country Link
EP (1) EP1342857A3 (de)
IT (1) ITMI20020409A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1930515A1 (de) * 2006-12-08 2008-06-11 Georg Ignatius Bauelement für Gebäude, Gebäudeausbauten und dergl., sowie entsprechende Herstellungsverfahren
WO2008071373A3 (de) * 2006-12-13 2008-09-18 Woschko Winlite Gmbh Verfahren zur herstellung eines vakuumpaneels, derartiges vakuumpaneel sowie deren verwendung in einem mauerstein
ITTV20100150A1 (it) * 2010-11-25 2012-05-26 Fracasso S P A Pannello acustico per barriere antirumore e barriera antirumore provvista di tale pannello
ITPI20110011A1 (it) * 2011-02-07 2012-08-08 Urbantech S R L Assorbitore acustico ad elevate prestazioni per rendere fonoassorbenti barriere antirumore costituite da un materiale prettamente fonoisolante.
ITNA20120012A1 (it) * 2012-03-23 2013-09-24 Fabio Auriemma Elemento fonoassorbente costituito da strati con scavi passanti e solchi dissipativi superficfiali.
RU2533697C2 (ru) * 2009-01-22 2014-11-20 Электролюкс Хоум Продактс, Инк. Акустическая панель
CN107316632A (zh) * 2017-06-14 2017-11-03 中国农业大学 一种吸声装置和吸声方法
CN110369006A (zh) * 2019-08-02 2019-10-25 遵义医学院附属医院 一种具有降噪功能的生物安全柜柜体
GB2554506B (en) * 2016-07-11 2020-02-05 Modular Innovations Pty Ltd Improved panel and post systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB890506A (en) * 1958-01-21 1962-02-28 Bruno Jablonsky Improvements in or relating to tiles, panels, slabs or sheets of expanded organic plastic materials
US3174580A (en) * 1961-04-28 1965-03-23 Kurt W Schulz Acoustical tile construction
GB983445A (en) * 1961-08-03 1965-02-17 Poron Insulation Ltd Sound-adsorbing plate and apparatus for producing it
US3770560A (en) * 1971-10-21 1973-11-06 American Cyanamid Co Composite laminate with a thin, perforated outer layer and cavitated bonded backing member
DE29617845U1 (de) * 1996-10-14 1998-02-12 M. Faist GmbH & Co. KG, 86381 Krumbach Einrichtung zum Absorbieren und/oder Dämpfen von Schallwellen
DE19812481C2 (de) * 1998-03-21 2002-08-22 Johann Rath Vorrichtung zur Dämpfung von Schallemissionen an Gleisanlagen

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1930515A1 (de) * 2006-12-08 2008-06-11 Georg Ignatius Bauelement für Gebäude, Gebäudeausbauten und dergl., sowie entsprechende Herstellungsverfahren
WO2008071373A3 (de) * 2006-12-13 2008-09-18 Woschko Winlite Gmbh Verfahren zur herstellung eines vakuumpaneels, derartiges vakuumpaneel sowie deren verwendung in einem mauerstein
RU2533697C2 (ru) * 2009-01-22 2014-11-20 Электролюкс Хоум Продактс, Инк. Акустическая панель
ITTV20100150A1 (it) * 2010-11-25 2012-05-26 Fracasso S P A Pannello acustico per barriere antirumore e barriera antirumore provvista di tale pannello
ITPI20110011A1 (it) * 2011-02-07 2012-08-08 Urbantech S R L Assorbitore acustico ad elevate prestazioni per rendere fonoassorbenti barriere antirumore costituite da un materiale prettamente fonoisolante.
ITNA20120012A1 (it) * 2012-03-23 2013-09-24 Fabio Auriemma Elemento fonoassorbente costituito da strati con scavi passanti e solchi dissipativi superficfiali.
GB2554506B (en) * 2016-07-11 2020-02-05 Modular Innovations Pty Ltd Improved panel and post systems
GB2580544A (en) * 2016-07-11 2020-07-22 Modular Innovations Pty Ltd Improved panel and post systems
GB2580544B (en) * 2016-07-11 2021-02-17 Modular Innovations Pty Ltd Improved panel and post systems
CN107316632A (zh) * 2017-06-14 2017-11-03 中国农业大学 一种吸声装置和吸声方法
CN110369006A (zh) * 2019-08-02 2019-10-25 遵义医学院附属医院 一种具有降噪功能的生物安全柜柜体
CN110369006B (zh) * 2019-08-02 2021-11-05 遵义医学院附属医院 一种具有降噪功能的生物安全柜柜体

Also Published As

Publication number Publication date
ITMI20020409A0 (it) 2002-02-28
ITMI20020409A1 (it) 2003-08-28
EP1342857A3 (de) 2004-03-17

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