EP1406792B1 - Schallabschirmelement - Google Patents
Schallabschirmelement Download PDFInfo
- Publication number
- EP1406792B1 EP1406792B1 EP02764576A EP02764576A EP1406792B1 EP 1406792 B1 EP1406792 B1 EP 1406792B1 EP 02764576 A EP02764576 A EP 02764576A EP 02764576 A EP02764576 A EP 02764576A EP 1406792 B1 EP1406792 B1 EP 1406792B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- partitions
- chambers
- element according
- sound proofing
- 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.)
- Revoked
Links
Images
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
- E04B1/84—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
- E04B1/82—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
-
- 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
- E04B2001/8433—Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
-
- 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 invention relates to a sound shielding element at least one with many small openings Plate according to the preamble of claim 1.
- Such sound shielding elements for example for Protection against sound propagation from the noise area of a room in a neighboring room and / or to cover sound reflecting or sound generating components are already in use known (WO 00/68039 and WO 99/44816).
- the dimensioning is the middle one Diameter or as holes, slots or the like trained small breakthroughs as important as the proportion of the area which such openings in the total area of the sound shielding element.
- This so-called "Perforated area ratio” should be the same as the middle one Diameter or the width of the openings very small his. Perforated area ratios between 0.01% and 10% as well average diameter or width of the openings between 0.01 mm and 1 mm are preferred.
- the invention is based, sound shielding elements of the genus mentioned at the beginning with regard to their Sound absorption in the simplest possible way and with low To further improve manufacturing costs.
- the training according to the invention is also not known with for a long time Helmholtz resonators comparable, which in cross section essentially circular chambers in, for example, plastic have either a thin oscillatable Cover film or are covered with a front panel, which for each Helmholtz chamber has an opening.
- the chambers are preferred in cross section rectangular, so that the partitions in each run on a substantially straight plane, which makes the production of large-area sound screening elements facilitated.
- the partitions can also be honeycomb-like trained or formed by put together pipe pieces his.
- the chambers have a clear width between 10 mm and 300 mm.
- the partitions should be as thin as possible his; the wall thicknesses are between 0.5 mm and 5 mm, and 3 mm.
- Polypropylene is particularly recommended as the material for the partition walls with a cased underbody paneling .from Motor vehicles.
- metals are also e.g. Aluminum, advantageous for the partitions.
- a hole area ratio between 1% and 8% particularly preferred, and the average diameter or The width of the small openings should be between 0.05 mm and 1 mm.
- the system of chambers and partitions should be on connect the side facing away from the plate to a rear wall; this can also be designed as a plate. The back wall but can also be missing.
- the chambers are preferably filled with air. It is supposed that the air vibrations behind that with small openings, especially small circular holes "Perforated plate” through the partition walls arranged as “transverse walls” be influenced in such a way that a considerably larger proportion of "Sound energy” in the micro-perforated plate in front of it is steamed.
- FIG. 1 is behind the one with small holes Breakthroughs 2 provided plate 1 a system 3 of Arranged chambers 4, which by orthogonal to the plate 1st extending partitions 5 are formed.
- the chambers 4 are rectangular in cross section in this example, in particular square, with a width B and a depth T between the back of the plate 1 and the rear wall 6, which can also consist of a plate.
- This back wall can, however, also be omitted, which surprisingly affects the absorption behavior barely changed.
- the partitions 5 have a as small as possible wall thickness S, which is above all sufficient Stability of the self-supporting chamber system in particular A of "cassettes" has to ensure.
- the wall thickness d of the plate 1 is about 2 mm.
- the chamber system 3 has a depth T of 30 mm.
- the chamber or partition walls 5 with a wall thickness S of 2 mm are made of polypropylene.
- the Plate 1 is made of transparent injection molding; she has one Wall thickness d of 2 mm.
- the chambers 4 have the height H and the width B.
- the dimensions of the entire measured arrangement are 1,200 mm x 800 mm B (mm) H (mm) A 800 1200 B 400 400 C 200 200 D 100 100 e 50 50 F without chambers, only with spacer bolts
- FIG. 2 shows the equivalent absorption area (m 2 ) (measured in the alpha cabin) as a function of the measuring frequency for examples A to F in the table, ie for different widths and heights of the chambers 4.
- the curve F results.
- the equivalent absorption area is increased at 600 Hz to 600%, ie five times. Even at a frequency f of 8 kHz, the equivalent absorption area is still more than doubled.
- FIG. 3 shows the same cassette measures as in the previous one Example of the dependence of the absorption curve on "Degree of cassette" when a high-frequency tuning of the Microperforation is chosen.
- the sound shielding element according to the invention is not only in Rooms, but also to shield machines and noise-causing Aggregates can be used in motor vehicles. Also in aircraft and especially passenger ships in which the The cabin area should be particularly noise-protected preferred areas of application.
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
| B (mm) | H (mm) | |
| A | 800 | 1.200 |
| B | 400 | 400 |
| C | 200 | 200 |
| D | 100 | 100 |
| E | 50 | 50 |
| F | ohne Kammern, nur mit Abstandbolzen |
Claims (10)
- Schallabschirmelement mit mindestens einer viele kleine Durchbrechungen (2) aufweisenden Schallabsorberplatte (1) und mit einem System (3) von Kammern (4), bei dem die Platte (1) eine Dicke (d) zwischen 0,001 mm und 50 mm aufweist und als frontseitige Abdeckung des Systems (3) von Kammern (4) dient, und bei der der mittlere Durchmesser oder die Breite der Durchbrechung (2) zwischen 0,001 mm und 2 mm und das Lochflächenverhältnis zwischen 0,01 % und 8 % betragen, und bei dem die Trennwände (5) zwischen den Kammern (4) im wesentlichen unter rechtem Winkel zur Ebene der Platte (1) verlaufen,
dadurch gekennzeichnet, daß die Kammern (4) eine lichte Breite (B) zwischen 0,5 und 20 cm und die Trennwände (5) eine Wandstärke (S) zwischen 0,5 mm und 4 mm aufweisen. - Schallabschirmelement nach Anspruch 1,
dadurch gekennzeichnet, daß die Platte
mit den Trennwänden als einstückige Baneinheit ausgebildet und zwar aus einer Folie tiefgezogen und/oder im Blasverfahren oder durch Anspritzen der Trennwände (15) an eine nadelgewalzte Folie hergestellt ist. - Schallabschirmelement nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die Kammern (4) im Querschnitt rechteckförmig ausgebildet sind und sich die Trennwände (5) jeweils in einer im wesentlichen geraden Ebene erstrecken. - Schallabschirmelement nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Lochflächenverhältnis der Platte (1) zwischen 1 % und 8 % beträgt. - Schallabschirmelement nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der mittlere Durchmesser oder die Breite der Durchbrechungen (2) zwischen 0,05 mm und 0,7 mm beträgt. - Schallabschirmelement nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Platte (1) aus einem Aluminum-Polypropylen-Verbund besteht. - Schallabschirmelement nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Trennwände (5) aus Polypropylen bestehen. - Schallabschirmelement nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das System (3) von Kammern (4) und Trennwänden (5) an der der Platte (1) abgewandten Seite durch eine Rückwand (6) abgedeckt ist. - Schallabschirmelement nach Anspruch 8,
dadurch gekennzeichnet, daß die Rückwand (6) als Platte ausgebildet ist. - Schallabschirmelement nach einem der vorhergehenden Ansprüche 2 bis 9,
dadurch gekennzeichnet, daß die nadelgewalzte Folie aus einem Aluminium-Polypropylen-Verbund besteht.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10134783 | 2001-07-17 | ||
| DE10134783A DE10134783B4 (de) | 2001-07-17 | 2001-07-17 | Schallabschirmelement |
| PCT/EP2002/006106 WO2003008237A1 (de) | 2001-07-17 | 2002-06-04 | Schallabschirmelement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1406792A1 EP1406792A1 (de) | 2004-04-14 |
| EP1406792B1 true EP1406792B1 (de) | 2004-11-24 |
Family
ID=7692123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02764576A Revoked EP1406792B1 (de) | 2001-07-17 | 2002-06-04 | Schallabschirmelement |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1406792B1 (de) |
| AT (1) | ATE283181T1 (de) |
| DE (2) | DE10134783B4 (de) |
| ES (1) | ES2235081T3 (de) |
| WO (1) | WO2003008237A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4680963B2 (ja) * | 2007-07-09 | 2011-05-11 | 株式会社神戸製鋼所 | 枠体付き二重壁構造体 |
| DE102010029409B4 (de) | 2010-05-27 | 2019-12-12 | Röchling Automotive AG & Co. KG | Thermische Kfz-Funktionsraumverkleidung |
| TW201404985A (zh) * | 2012-05-07 | 2014-02-01 | 3M Innovative Properties Co | 聲波阻尼裝置及設備 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1352581A (fr) * | 1963-04-03 | 1964-02-14 | Dalle d'insonorisation en des matières synthétiques à l'état de mousse, et procédé de fabrication de cette dalle | |
| DE1264021B (de) * | 1962-12-01 | 1968-03-21 | Gruenzweig & Hartmann A G | Schalldaemmende Wandung |
| DE2408028B2 (de) * | 1974-02-20 | 1978-05-11 | Fa. Carl Freudenberg, 6940 Weinheim | Schallschluckplatte |
| GB2038410B (en) * | 1978-12-27 | 1982-11-17 | Rolls Royce | Acoustic lining utilising resonance |
| CH683855A5 (de) * | 1991-07-24 | 1994-05-31 | Zdzislaw Pregowski | Schallabsorptionsplatte. |
| CH692731A5 (de) * | 1998-01-09 | 2002-10-15 | Rieter Automotive Int Ag | Ultraleichter, schall- und schockabsorbierender Bausatz. |
| DE29803674U1 (de) * | 1998-03-03 | 1999-07-15 | M. Faist GmbH & Co. KG, 86381 Krumbach | Schichtstoff |
| EP1161360B1 (de) * | 1999-05-06 | 2002-07-24 | FAIST Automotive GmbH & Co. KG | Schallabschirmelement, verwendung desselben und verfahren zu dessen herstellung |
-
2001
- 2001-07-17 DE DE10134783A patent/DE10134783B4/de not_active Expired - Fee Related
-
2002
- 2002-06-04 EP EP02764576A patent/EP1406792B1/de not_active Revoked
- 2002-06-04 WO PCT/EP2002/006106 patent/WO2003008237A1/de not_active Ceased
- 2002-06-04 ES ES02764576T patent/ES2235081T3/es not_active Expired - Lifetime
- 2002-06-04 DE DE50201635T patent/DE50201635D1/de not_active Revoked
- 2002-06-04 AT AT02764576T patent/ATE283181T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003008237A1 (de) | 2003-01-30 |
| ES2235081T3 (es) | 2005-07-01 |
| DE10134783A1 (de) | 2003-02-13 |
| EP1406792A1 (de) | 2004-04-14 |
| ATE283181T1 (de) | 2004-12-15 |
| DE10134783B4 (de) | 2005-09-15 |
| DE50201635D1 (de) | 2004-12-30 |
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