DE13711565T1 - sound absorber - Google Patents

sound absorber Download PDF

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Publication number
DE13711565T1
DE13711565T1 DE13711565.5T DE13711565T DE13711565T1 DE 13711565 T1 DE13711565 T1 DE 13711565T1 DE 13711565 T DE13711565 T DE 13711565T DE 13711565 T1 DE13711565 T1 DE 13711565T1
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DE
Germany
Prior art keywords
layer
sound absorber
absorber according
microns
cells
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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.)
Pending
Application number
DE13711565.5T
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German (de)
Inventor
Ralf Corin
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.)
NOISETECH HB
Original Assignee
NOISETECH HB
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Filing date
Publication date
Application filed by NOISETECH HB filed Critical NOISETECH HB
Publication of DE13711565T1 publication Critical patent/DE13711565T1/en
Pending 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
    • 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
    • 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

Abstract

Schallabsorber, umfassend eine erste Abdeckschicht (4), eine zweite Abdeckschicht (6) und eine Zwischenschicht (8), wobei die Zwischenschicht (8) Wände (13) umfasst, welche eine Mehrzahl von Zellen (12, 12a, 12b, 12c, 12d) begrenzen, welche in einem ersten Ende (14) und einem zweiten Ende (16) offen sind, wobei die Zellen nebeneinander angeordnet sind, wobei das erste offene Ende (14) der Mehrzahl von Zellen durch die erste Abdeckschicht (4) abgedeckt ist, wobei das zweite offene Ende (16) der Mehrzahl von Zellen durch die zweite Abdeckschicht (6) abgedeckt ist, dadurch gekennzeichnet, dass die erste Schicht (4) durch ein mechanisches Bearbeiten mit zumindest einem Mikroschlitz (10) ausgestattet ist, wobei der Mikroschlitz (10) durch die erste Schicht (4) verläuft, derart, dass es ermöglicht wird, dass Schallwellen den Mikroschlitz (10) durchdringen und in das erste offene Ende (14) der Zelle eintreten.A sound absorber comprising a first cover layer (4), a second cover layer (6) and an intermediate layer (8), the intermediate layer (8) comprising walls (13) having a plurality of cells (12, 12a, 12b, 12c, 12d ) which are open in a first end (14) and a second end (16), wherein the cells are arranged side by side, wherein the first open end (14) of the plurality of cells is covered by the first cover layer (4), wherein the second open end (16) of the plurality of cells is covered by the second cover layer (6), characterized in that the first layer (4) is provided with at least one microslit (10) by mechanical working, the microslot (10) 10) through the first layer (4), such as to allow sound waves to penetrate the microslit (10) and enter the first open end (14) of the cell.

Claims (15)

Schallabsorber, umfassend eine erste Abdeckschicht (4), eine zweite Abdeckschicht (6) und eine Zwischenschicht (8), wobei die Zwischenschicht (8) Wände (13) umfasst, welche eine Mehrzahl von Zellen (12, 12a, 12b, 12c, 12d) begrenzen, welche in einem ersten Ende (14) und einem zweiten Ende (16) offen sind, wobei die Zellen nebeneinander angeordnet sind, wobei das erste offene Ende (14) der Mehrzahl von Zellen durch die erste Abdeckschicht (4) abgedeckt ist, wobei das zweite offene Ende (16) der Mehrzahl von Zellen durch die zweite Abdeckschicht (6) abgedeckt ist, dadurch gekennzeichnet, dass die erste Schicht (4) durch ein mechanisches Bearbeiten mit zumindest einem Mikroschlitz (10) ausgestattet ist, wobei der Mikroschlitz (10) durch die erste Schicht (4) verläuft, derart, dass es ermöglicht wird, dass Schallwellen den Mikroschlitz (10) durchdringen und in das erste offene Ende (14) der Zelle eintreten.Sound absorber, comprising a first cover layer ( 4 ), a second cover layer ( 6 ) and an intermediate layer ( 8th ), the intermediate layer ( 8th ) Walls ( 13 ) comprising a plurality of cells ( 12 . 12a . 12b . 12c . 12d ), which in a first end ( 14 ) and a second end ( 16 ) are open, wherein the cells are arranged side by side, wherein the first open end ( 14 ) of the plurality of cells through the first cover layer ( 4 ), the second open end ( 16 ) of the plurality of cells through the second cover layer ( 6 ), characterized in that the first layer ( 4 ) by mechanical processing with at least one microslot ( 10 ), whereby the micro slot ( 10 ) through the first layer ( 4 ) such that it allows sound waves to pass through the microslot ( 10 ) and into the first open end ( 14 ) enter the cell. Schallabsorber nach Anspruch 1, wobei die zweite Schicht (6) mit zumindest einem Mikroschlitz (10) ausgestattet ist, derart, dass es ermöglicht wird, dass Schallwellen den Mikroschlitz durchdringen und in das zweite offene Ende (16) der Zelle eintreten.A sound absorber according to claim 1, wherein the second layer ( 6 ) with at least one microslot ( 10 ) such that sound waves are allowed to pass through the micro-slot and into the second open end (FIG. 16 ) enter the cell. Schallabsorber nach Anspruch 1 oder 2, wobei die Länge (L) des Mikroschlitzes in dem Bereich von 2 mm–2 km liegt, bevorzugt 10–1000 mm, weiter bevorzugt 100–1000 mm.A sound absorber according to claim 1 or 2, wherein the length (L) of the micro-slit is in the range of 2 mm-2 km, preferably 10-1000 mm, more preferably 100-1000 mm. Schallabsorber nach einem der Ansprüche 1 bis 3, wobei die Breite (a) des Schlitzes in dem Bereich von 1 Mikrometer bis 1 mm liegt, vorzugsweise 10 Mikrometer bis 0,9 mm, weiter bevorzugt 0,3–0,5 mm.A sound absorber according to any one of claims 1 to 3, wherein the width (a) of the slit is in the range of 1 micron to 1 mm, preferably 10 microns to 0.9 mm, more preferably 0.3-0.5 mm. Schallabsorber nach einem der vorhergehenden Ansprüche, wobei die Dicke der Wand (13) in dem Bereich von 10 Mikrometer bis 0,5 mm, bevorzugt 30 Mikrometer bis 0,3 mm, weiter bevorzugt 50 Mikrometer bis 0,2 mm liegt.Sound absorber according to one of the preceding claims, wherein the thickness of the wall ( 13 ) is in the range of 10 microns to 0.5 mm, preferably 30 microns to 0.3 mm, more preferably 50 microns to 0.2 mm. Schallabsorber nach einem der vorhergehenden Ansprüche, wobei zumindest jede Wandlage durch eine gewellte Lage oder eine Platte (20a, 20b, 20c, 20d) geformt ist, wobei jede zweite Wand eine im Wesentlichen ebene Lage oder Platte (26, 26a, 26b, 26c) ist, die zwischen jeder zweiten gewellten Lage oder Platte (20a, 20b, 20c, 20d) angeordnet ist.Sound absorber according to one of the preceding claims, wherein at least each wall layer by a corrugated layer or a plate ( 20a . 20b . 20c . 20d ), each second wall having a substantially planar position or plate (FIG. 26 . 26a . 26b . 26c ) is between each second corrugated layer or plate ( 20a . 20b . 20c . 20d ) is arranged. Schallabsorber nach einem der vorhergehenden Ansprüche, wobei die Dicke (t1) von zumindest einer der ersten Schicht (4) und der zweiten Schicht (6) in dem Bereich von 10 Mikrometern bis 5 mm, bevorzugt 20 Mikrometern bis 0,9 mm, weiter bevorzugt 50 Mikrometer bis 0,6 mm liegt.Sound absorber according to one of the preceding claims, wherein the thickness (t 1 ) of at least one of the first layer ( 4 ) and the second layer ( 6 ) is in the range of 10 microns to 5 mm, preferably 20 microns to 0.9 mm, more preferably 50 microns to 0.6 mm. Schallabsorber nach einem der vorhergehenden Ansprüche, wobei zumindest eine der Zwischenschicht (8), der ersten Schicht (4) und der zweiten Schicht (6) aus einem Cellulosematerial, einem Polymermaterial oder Metall ausgeführt liegt.Sound absorber according to one of the preceding claims, wherein at least one of the intermediate layer ( 8th ), the first layer ( 4 ) and the second layer ( 6 ) is made of a cellulosic material, a polymer material or metal. Schallabsorber nach einem der vorhergehenden Ansprüche, wobei die Dicke (tc) der Zwischenschicht in dem Bereich von 1–200 mm, bevorzugt 5–50 mm, weiter bevorzugt 10–30 mm liegt.Sound absorber according to one of the preceding claims, wherein the thickness (t c ) of the intermediate layer in the range of 1-200 mm, preferably 5-50 mm, more preferably 10-30 mm. Schallabsorber nach einem der vorhergehenden Ansprüche, wobei das Verhältnis von Zellen pro Quadratmeter eines Querschnitts der Zwischenschicht (8) innerhalb des Bereichs von 1 bis 100.000.000, bevorzugt 100 bis 1.000.000, weiter bevorzugt 500 bis 200.000 liegt.Sound absorber according to one of the preceding claims, wherein the ratio of cells per square meter of a cross section of the intermediate layer ( 8th ) within the range of 1 to 100,000,000, preferably 100 to 1,000,000, more preferably 500 to 200,000. Verfahren zum Herstellen eines Schallabsorbers nach einem der vorhergehenden Ansprüche, wobei der Mikroschlitz (10) durch ein mechanisches Bearbeiten durch ein mechanisches Werkzeug ausgeführt wird.Method for producing a sound absorber according to one of the preceding claims, wherein the micro-slot ( 10 ) is performed by a mechanical machining by a mechanical tool. Verfahren nach Anspruch 11, umfassend ein Auswählen einer Zwischenschicht eines vorbestimmten Materials, ein Auswählen einer ersten Schicht (4) einer vorbestimmten Schicht und ein Auswählen einer zweiten Schicht (6) eines vorbestimmten Materials.The method of claim 11, comprising selecting an intermediate layer of a predetermined material, selecting a first layer ( 4 ) of a predetermined layer and selecting a second layer ( 6 ) of a predetermined material. Verfahren nach Anspruch 12, wobei zumindest die erste Schicht (4) der ersten und zweiten Schichten z. B. durch ein Kleben mit der Zwischenschicht (8) verbunden wird, bevor die Mikroschlitze in der ersten Schicht (4) ausgeführt werden.Method according to claim 12, wherein at least the first layer ( 4 ) of the first and second layers z. B. by gluing with the intermediate layer ( 8th ) before the micro-slots in the first layer ( 4 ). Verfahren nach Anspruch 21 wobei das mechanische Bearbeiten eines der Folgenden umfasst: ein Stanzen, wobei das mechanische Werkzeug z. B. ein Stanzmesser ist; ein Schlitzen mittels einer Schlitzmaschine, wobei das mechanische Werkzeug ein Messer ist; und ein Schneiden, wobei das mechanische Werkzeug eine Schneidklinge mit einer Schneidkante ist.The method of claim 21 wherein the mechanical working comprises one of the following: punching, wherein the mechanical tool is e.g. B. is a punching knife; slitting by means of a slitting machine, the mechanical tool being a knife; and cutting, wherein the mechanical tool is a cutting blade having a cutting edge. Verfahren nach einem der Ansprüche 11 bis 14, umfassend ein Auswählen eines mechanischen Werkzeugs aus einem Satz von Werkzeuggrößen, um eine vorbestimmte Schlitzbreite zu erreichen, ein Verbinden des mechanischen Werkzeugs mit einem numerischen Computer-Steuergerät, und ein Programmieren der Schlitzlänge, der Schlitztiefe und des Abstands zwischen den Schlitzen, um eine gewünschte Schallabschwächung zu erreichen.A method according to any one of claims 11 to 14, comprising selecting a mechanical tool from a set of tool sizes to achieve a predetermined slot width, connecting the mechanical tool to a computer numerical control device, and programming the slot length, slot depth, and Distance between the slots to achieve a desired sound attenuation.
DE13711565.5T 2012-02-23 2013-02-22 sound absorber Pending DE13711565T1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
SE1200115 2012-02-23
SE1200115 2012-02-23
SE1200253A SE536860C2 (en) 2012-02-23 2012-04-26 A sound absorber
SE1200253 2012-04-26
EP13711565.5A EP2817799A2 (en) 2012-02-23 2013-02-22 A sound absorbent
PCT/EP2013/000517 WO2013124069A2 (en) 2012-02-23 2013-02-22 A sound absorbent

Publications (1)

Publication Number Publication Date
DE13711565T1 true DE13711565T1 (en) 2015-06-03

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DE13711565.5T Pending DE13711565T1 (en) 2012-02-23 2013-02-22 sound absorber

Country Status (4)

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

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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

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Also Published As

Publication number Publication date
WO2013124069A3 (en) 2013-11-14
SE536860C2 (en) 2014-10-07
SE1200253A1 (en) 2013-08-24
WO2013124069A2 (en) 2013-08-29
EP2817799A2 (en) 2014-12-31

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