EP0531698B1 - Ecran amortisseur de son - Google Patents

Ecran amortisseur de son Download PDF

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Publication number
EP0531698B1
EP0531698B1 EP19920113051 EP92113051A EP0531698B1 EP 0531698 B1 EP0531698 B1 EP 0531698B1 EP 19920113051 EP19920113051 EP 19920113051 EP 92113051 A EP92113051 A EP 92113051A EP 0531698 B1 EP0531698 B1 EP 0531698B1
Authority
EP
European Patent Office
Prior art keywords
frame
sound
another
limbs
perforated metal
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
EP19920113051
Other languages
German (de)
English (en)
Other versions
EP0531698A3 (en
EP0531698A2 (fr
Inventor
Stevan Tomic
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.)
Luwa Ltd
Original Assignee
Luwa Ltd
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 Luwa Ltd filed Critical Luwa Ltd
Publication of EP0531698A2 publication Critical patent/EP0531698A2/fr
Publication of EP0531698A3 publication Critical patent/EP0531698A3/de
Application granted granted Critical
Publication of EP0531698B1 publication Critical patent/EP0531698B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a silencer backdrop a frame and with this arranged between perforated sheets Soundproofing material.
  • Silencers are used, for example, to reduce noise built into a flow channel. They exist in known designs from a U-shaped profile manufactured sheet metal frame, in the sound absorption material such as. Mineral fiber boards inserted , whereupon perforated sheets are riveted to both sides of the frame or be spot welded (see, for example, document US-A-4 258 511). These types of fastenings are very labor intensive. At the Welding must be treated after all welding points to counter the risk of corrosion. This Protective measures contribute in particular to making the Manufacturing at. On the other hand, it is for example Exhaust silencers made of austenitic material because of the moisture sensitivity of the Mineral fiber filling not possible, the welds too pickle. Furthermore, it is like in certain applications used for example for the intake air of gas turbines Soundproofing devices not permitted, Rivets for the assembly of the silencing device to use. So there are very different ones Reasons to use the previously known manufacturing methods replace.
  • the present invention was therefore the object to create a silencer backdrop that is assemble quickly and with little effort leaves.
  • the task also existed in the soundproofing material without the use of Riveted or welded connections between perforated sheets to include all the risks mentioned above such as corrosion, etc., also excluding this inclusion of the damping material between Perforated sheets without much time and in the simplest Way should be feasible.
  • the silencer backdrop is a frame from frame parts that are U-shaped in cross section, can make individual cassettes from each between two Perforated sheets arranged soundproofing material between the legs of the frame parts are used, with a in one place cut thigh Frame part is used to insert the cassettes, the then held in the frame without additional fasteners are.
  • cassettes intended for insertion in the frame two perforated sheets and one arranged between them Soundproofing material and these are cassettes units manufactured without riveted or welded connections, their components due to the connections Folds can be assembled in a few simple steps.
  • cassettes after the Modular principle of different sized silencers to be able to produce, for each of its frames only different according to the desired size long frame parts assembled into a frame Need to become.
  • FIG. 1 has a frame 1 on the four cross-sectionally U-shaped frame parts 2, 3, 4 and 5, which results in a rectangular shape Frames are composed.
  • everyone in the Cross-section U-shaped frame parts has two legs on that in a front and in a rear Frame level. Between the front legs 2a, 3a, 4a and 5a and those in the rear plane Legs, of which only leg 5b in FIG. 1 visible, are stacked in the frame 1 Cassettes 6 held, said legs all frame parts lie against the cassettes all around, so this without the use of other fasteners are held.
  • a cutout 7 have at least as long as the height of a Cassette 6, and its upper limit in one Distance from the upper end of the frame part 5 accordingly the height of a cassette.
  • Fig. 1 on the can be seen on the right side, then all Cassettes 6 through this leg cutout 7 in the Thread frame 1 by first pulling the cassette a little slanted and then through the cutout 7 in the Frame level is pivoted. 1 is shown in FIG on the right side the penultimate cassette 6 upwards then pushed the last cassette in place of the Use section 7. With this procedure are then all cassettes 6 between the legs of the frame parts held. Only section 7 has to be at the end be closed, for which purpose a flat bar 8 serves, which is slightly bent at both ends, so that these ends engage behind the cut leg 5b.
  • each cassette 6 consists of two opposite Perforated sheets 10 and 11, each on two Edges are angled so that they are U-shaped Have cross-section.
  • the perforated plate 10 has the two U-legs 10a and 10b and the perforated plate 11, the two U-legs 11a and 11b.
  • the two perforated plates 10 and 11 are so parallel to each other that the respective U-legs are facing each other.
  • To each other facing thigh edges are longitudinal folds 12 and 13 educated.
  • a connecting plate 14 also has opposite edges longitudinal folds 15 and 16.
  • a cassette 6 is assembled in the manner that first the soundproofing material, for example be inserted in the form of mineral fiber plates 17 and then the connection of the perforated plates 10 and 11 by insertion several connecting plates 14 takes place, the Longitudinal folds 12 to 16 due to the compressed sound absorbing material are pressed together.
  • the connecting plate can take the form of a relatively short one Connection bracket 14 have the necessary to achieve the Stability is sufficient, as can be seen from FIG. 2 above, or the connecting plate is the same length as that angled perforated plates 10 and 11 and then between adjacent cassettes a partition 18, the usually at a distance of 0.5 m in relation to the height the silencer backdrop is provided. 4 is a continuous one above a short connecting plate 14 Partition plate 18 shown. The assembly the cassettes 6 happens without the use of rivets or Welded joints and can be quickly with perform in a few simple steps.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Claims (5)

  1. Ecran amortisseur de bruit, comprenant un cadre et un matériau d'amortissement du bruit disposé dans celui-ci entre deux tôles perforées, caractérisé en ce que le cadre (1) se compose de parties de cadre (2, 3, 4, 5) de profil en U, qui retiennent, entre les rebords en regard (2a, 2b, 3a, 3b, 4a, 4b, 5a, 5b) de chacune des parties du cadre, une pluralité de cassettes parallélépipédiques (6) les unes au-dessus des autres remplissant le cadre, qui contiennent à chaque fois du matériau d'amortissement du bruit (17) disposé entre deux tôles perforées (10, 11), et en ce qu'une partie du cadre (5), à une distance de l'extrémité de la partie du cadre correspondant au moins à la hauteur d'une cassette (6) présente, sur l'un de ses rebords (5b), une découpure (7) de longueur au moins égale à la hauteur d'une cassette, afin de pouvoir insérer toutes les cassettes dans le cadre (1) en les enfilant dans la découpure vers le haut et vers le bas par rapport à celle-ci, et en ce que la découpure (7) peut être bouchée après l'insertion de la dernière cassette, avec un verrou (8) en forme de barrette plate et pouvant être fixée sur la partie du cadre (5b).
  2. Ecran amortisseur de bruit selon la revendication 1, caractérisé en ce que le verrou (8) en forme de barrette plate est coudé aux deux extrémités pour venir en prise par l'arrière avec les bords (5b) de la découpure.
  3. Ecran amortisseur de bruit selon la revendication 1, comprenant une cassette, dans laquelle à chaque fois deux tôles perforées (10, 11) formées en forme de U par coudage de deux bords et en regard l'une vers l'autre avec les rebords des U (10a, 10b, 11a, 11b) tournés les uns vers les autres, présentent des plis longitudinaux (12, 13) au niveau de chacun des bords des rebords en regard (10a, 11a, 10b, 11b), et sont chacune reliées l'une à l'autre par une tôle de liaison (14,18) présentant également des plis longitudinaux (15, 16) aux deux bords, par engagement les uns dans les autres des plis longitudinaux (12, 15, 13, 16), afin de former, par connexion à engagement positif, un boítier stable pour le matériau d'amortissement du bruit (17) qui y est disposé.
  4. Ecran amortisseur de bruit selon la revendication 3, caractérisé en ce que la tôle de liaison (14, 18) forme un cloisonnement (18) de même longueur que la tôle perforée (10, 11) ) vis-à-vis d'une cassette adjacente, ou forme seulement un étrier de liaison (14) s'étendant seulement sur une zone partielle de la longueur de la tôle perforée.
  5. Ecran amortisseur de bruit selon la revendication 3, caractérisé en ce qu'une pluralité de cassettes (6), sont placées à chaque fois les unes sur les autres, avec les rebords des U (10a, 10b, 11a, 11b) des tôles perforées (10, 11) pouvant être placés les uns sur les autres.
EP19920113051 1991-09-12 1992-07-31 Ecran amortisseur de son Expired - Lifetime EP0531698B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH693/91 1991-09-12
CH269391 1991-09-12

Publications (3)

Publication Number Publication Date
EP0531698A2 EP0531698A2 (fr) 1993-03-17
EP0531698A3 EP0531698A3 (en) 1993-06-16
EP0531698B1 true EP0531698B1 (fr) 1998-09-02

Family

ID=4239457

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920113051 Expired - Lifetime EP0531698B1 (fr) 1991-09-12 1992-07-31 Ecran amortisseur de son

Country Status (2)

Country Link
EP (1) EP0531698B1 (fr)
DE (1) DE59209481D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009034463A1 (de) 2009-07-22 2011-02-03 Filtro Klimatechnik Gmbh Schalldämpfungskörper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194329A (en) * 1976-01-20 1980-03-25 Wendt Alan C Sound absorbing panels
US4258511A (en) * 1979-03-29 1981-03-31 Strain William E Industrial noise abatement enclosure
DE3024037A1 (de) * 1979-08-02 1981-02-19 Luwa Ag Gehaeuse fuer klima- und lueftungsgeraete
DE3605684C2 (de) * 1986-02-21 1996-11-21 Wrede & Niedecken Verwaltung Absorptionsschalldämpferkulisse

Also Published As

Publication number Publication date
EP0531698A3 (en) 1993-06-16
DE59209481D1 (de) 1998-10-08
EP0531698A2 (fr) 1993-03-17

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