EP0531698B1 - Sound-damping screen - Google Patents
Sound-damping screen Download PDFInfo
- 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
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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)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Exhaust Silencers (AREA)
Description
Die Erfindung betrifft eine Schalldämpferkulisse mit einem Rahmen und mit in diesem zwischen Lochblechen angeordnetem Schalldämpfungsmaterial.The invention relates to a silencer backdrop a frame and with this arranged between perforated sheets Soundproofing material.
Schalldämpferkulissen werden beispielsweise zur Lärmreduzierung in einen Strömungskanal eingebaut. Sie bestehen bei bekannten Bauarten aus einem aus U-förmigen Profilen hergestellten Blechrahmen, in den Schallabsorbtionsmaterial wie z.B. Mineralfaserplatten hineingesetzt werden, woraufhin beidseitig am Rahmen Lochbleche festgenietet oder durch Punktschweissung befestigt werden (siehe, zum Beispiel, Dokument US-A-4 258 511). Diese Befestigungsarten sind sehr arbeitsintensiv. Beim Schweissen müssen alle Schweissstellen nachbehandelt werden, um der Korrosionsgefahr zu begegnen. Diese Schutzmassnahmen tragen besonders zur Verteuerung der Herstellung bei. Andererseits ist es beispielsweise bei aus austenitischem Material bestehenden Schalldämpferkulissen wegen der Feuchtigkeitsempfindlichkeit der Mineralfaserfüllung nicht möglich, die Schweissstellen zu beizen. Ferner ist es bei bestimmten Anwendungen wie beispielsweise für die Ansaugluft von Gasturbinen eingesetzten Schalldämpfungseinrichtungen nicht zulässig, Nieten für den Zusammenbau der Schalldämpfungseinrichtung zu verwenden. Es bestehen demnach sehr verschiedene Gründe, die bisher bekannten Herstellungsmethoden zu ersetzen.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.
Der vorliegenden Erfindung lag daher die Aufgabe zugrunde, eine Schalldämpferkulisse zu schaffen, die sich mit wenig Arbeitsaufwand und entsprechend schnell zusammenbauen lässt. Dabei bestand die Aufgabe ferner darin, das Schalldämpfungsmaterial ohne die Anwendung von Niet- oder Schweissverbindungen zwischen Lochblechen einzuschliessen, um dadurch alle eingangs erwähnten Risiken wie Korrosion, etc. auszuschliessen, wobei auch dieses Einschliessen des Dämpfungsmaterials zwischen Lochbleche ohne grossen Zeitaufwand und auf einfachste Weise durchführbar sein soll.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.
Die Aufgaben werden mit den Merkmalen nach den Ansprüchen
1 und 5 gelöst. Da die Schalldämpferkulisse einen Rahmen
aus im Querschnitt U-förmigen Rahmenteilen besitzt,
können einzelne Kassetten aus jeweils zwischen zwei
Lochblechen angeordnetem Schalldämpfungsmaterial zwischen
die Schenkel der Rahmenteile eingesetzt werden, wobei ein
an einer Stelle ausgeschnittener Schenkel eines
Rahmenteils zum Hineinsetzen der Kassetten dient, die
dann ohne zusätzliche Befestigungsmittel im Rahmen gehalten
sind.The tasks are with the features according to the
Die zum Einsetzen in den Rahmen bestimmten Kassetten umfassen jeweils zwei Lochbleche und zwischen diesen angeordnetes Schalldämpfungsmaterial und diese Kassetten sind ohne Niet- oder Schweissverbindungen hergestellte Einheiten, deren Bestandteile aufgrund der Verbindungen durch Falze mit wenigen Handgriffen zusammenfügbar sind. Schliesslich ist es von Vorteil, mit Kassetten nach dem Baukastenprinzip unterschiedlich grosse Schalldämpferkulissen herstellen zu können, wobei für dessen Rahmen jeweils nur der gewünschten Grösse entsprechend unterschiedlich lange Rahmenteile zu einem Rahmen zusammengesetzt werden müssen. Include the 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. Finally, it is advantageous to use 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.
Weitere Einzelheiten und Vorteile ergeben sich aus der nachfolgenden Beschreibung und den Zeichnungen, in denen der Erfindungsgegenstand rein beispeilsweise dargestellt ist.Further details and advantages result from the following description and the drawings in which the subject of the invention is shown purely as an example is.
Es zeigen:
- Fig. 1
- eine schaubildliche Darstellung von zwei zusammengekuppelten Schalldämpferkulissen;
- Fig. 2
- einen schaubildlich und abgebrochen dargestellten Abschnitt der Schalldämpferkulisse;
- Fig. 3
- eine Seitenansicht der Schalldämpferkulisse schematisch;
- Fig. 4
- einen Querschnitt durch die Schalldämpferkulisse gemäss Linie 3-3 in Fig. 3 im grösseren Massstab.
- Fig. 1
- a diagrammatic representation of two coupled silencer backdrops;
- Fig. 2
- a graphically and broken section of the silencer backdrop;
- Fig. 3
- a side view of the silencer backdrop schematically;
- Fig. 4
- a cross section through the silencer backdrop according to line 3-3 in Fig. 3 on a larger scale.
Die Schalldämpferkulisse gemäss Fig. 1 weist einen Rahmen
1 auf, der aus vier im Querschnitt U-förmigen Rahmenteilen
2, 3, 4 und 5 besteht, die zu einem rechteckförmigen
Rahmen zusammengesetzt sind. Jeder der im
Querschnitt U-förmigen Rahmenteile weist zwei Schenkel
auf, die in einer vorderen und in einer hinteren
Rahmenebene liegen. Zwischen den vorderen Schenkeln 2a,
3a, 4a und 5a und den in der hinteren Ebene liegenden
Schenkeln, von denen in Fig. 1 nur der Schenkel 5b
sichtbar ist, sind in dem Rahmen 1 übereinandergesetzte
Kassetten 6 festgehalten, wobei die genannten Schenkel
aller Rahmenteile ringsum gegen die Kassetten anliegen,
so dass diese ohne die Verwendung von anderen Befestigungsmitteln
gehalten sind. 1 has a
Um die Kassetten 6 in den Rahmen 1 hineinsetzen zu
können, muss an einem Rahmenteil, beispielsweise gemäss
Fig. 1 am Rahmenteil 5 ein Schenkel 5b einen Ausschnitt 7
aufweisen, der mindestens so lang ist, wie die Höhe einer
Kassette 6, und dessen obere Begrenzung sich in einem
Abstand vom oberen Ende des Rahmenteils 5 entsprechend
der Höhe einer Kassette befindet. Wie aus Fig. 1 auf der
rechten Seite zu erkennen ist, lassen sich dann alle
Kassetten 6 durch diesen Schenkelausschnitt 7 in den
Rahmen 1 einfädeln, indem die Kassette zunächst etwas
schräg gestellt und dann durch den Ausschnitt 7 in die
Rahmenebene geschwenkt wird. Dabei wird gemäss Fig. 1 auf
der rechten Seite die vorletzte Kassette 6 nach oben
geschoben, um dann die letzte Kassette an der Stelle des
Ausschnitts 7 einzusetzen. Bei diesem Vorgehen sind dann
alle Kassetten 6 zwischen Schenkeln der Rahmenteile
gehalten. Nur der Ausschnitt 7 muss am Ende noch
verschlossen werden, wozu ein flachstabförmiger Riegel 8
dient, der an beiden Enden etwas abgekröpft ist, so dass
diese Enden den ausgeschnittenen Schenkel 5b hintergreifen.To insert the
Wie aus dem Querschnitt gemäss Fig. 4 am deutlichsten
hervorgeht, besteht jede Kassette 6 aus zwei gegenüberstehenden
Lochblechen 10 und 11, die jeweils an zwei
Rändern abgewinkelt sind, so dass sie einen U-förmigen
Querschnitt besitzen. Das Lochblech 10 weist die beiden
U-Schenkel 10a und 10b und das Lochblech 11 die beiden U-Schenkel
11a und 11b auf. Die beiden Lochbleche 10 und 11
stehen so parallel einander gegenüber, dass die jeweiligen
U-Schenkel einander zugewandt sind. An den einander
zugewandten Schenkelrändern sind Längsfalze 12 und 13
ausgebildet. Ein Verbindungsblech 14 besitzt ebenfalls an
gegenüberliegenden Rändern Längsfalze 15 und 16. Durch
Ineinandergreifen der Längsfalze 12 und 15 auf der einen
Seite und der Längsfalze 13 und 16 auf der anderen Seite
sind mit Hilfe der auf die Lochblechschenkel aufgeschobenen
Verbindungsbleche 14 die beiden Lochbleche 10
und 11 formschlüssig miteinander verbunden.As most clearly from the cross section according to FIG. 4
shows, each
Der Zusammenbau einer Kassette 6 erfolgt in der Weise,
dass zunächst das Schalldämpfungsmaterial beispielsweise
in Form von Mineralfaserplatten 17 eingelegt werden und
dann die Verbindung der Lochbleche 10 und 11 durch Einschieben
mehrerer Verbindungsbleche 14 erfolgt, wobei die
Längsfalze 12 bis 16 durch das zusammengedrückte Schalldämpfungsmaterial
ineinandergepresst sind.A
Das Verbindungsblech kann die Form eines relativ kurzen
Verbindungsbügels 14 haben, der zur Erzielung der notwendigen
Stabilität ausreicht, wie aus Fig. 2 oben hervorgeht,
oder das Verbindungsblech ist gleich lang wie die
abgewinkelten Lochbleche 10 bzw. 11 und stellt dann zwischen
benachbarten Kassetten eine Abschottung 18 dar, die
in der Regel im Abstand von 0,5 m in bezug auf die Höhe
der Schalldämpferkulisse vorgesehen wird. In Fig. 4 ist
oberhalb eines kurzen Verbindungsblechs 14 ein durchgehendes
Abschottungsblech 18 dargestellt. Der Zusammenbau
der Kassetten 6 geschieht ohne Anwendung von Niet-oder
Schweissverbindungen und lässt sich schnell mit
wenigen Handgriffen durchführen.The connecting plate can take the form of a relatively short one
Claims (5)
- Sound-damping baffle, having a frame and having sound-damping material arranged in the said frame between perforated metal plates; characterized in that the frame (1) consists of U-profile frame parts (2, 3, 4, 5) which hold a plurality of cuboid cartridges (6) between the mutually offset limbs (2a, 2b, 3a, 3b, 4a, 4b, 5a, 5b) of each of the frame parts, which cartridges fill the frame, placed one on top of another, and contain in each case sound-damping material (17) between two perforated metal plates (10, 11); and in that one frame part (5) has on one of its limbs (5b) at a distance from the end of the frame part, the said distance corresponding at least to the height of one cartridge (6), a cutout (7) which is at least equal in length to the height of one cartridge in order to be able to insert all the cartridges into the frame (1) by introducing them at the cutout downwards and upwards relative to the latter; and in that the cutout (7) can be closed, when the last cartridge has been inserted, by a flat bar-shaped latch (8) which can be retained on the frame part (5b).
- Sound-damping baffle according to Claim 1, characterized in that the flat bar-shaped latch (8) is bent at both ends to engage behind the edges (5b) of the cutout.
- Sound-damping baffle according to Claim 1, having a cartridge, in each case two perforated metal plates (10, 11), formed by bending two edges in a U-shape and disposed opposite one another with the U-limbs (10a, 10b, 11a, 11b) facing one another, having longitudinal folds (12, 13) at the edges of the limbs (10a, 11a, 10b, 11b) located opposite one another in each case, and being connected to one another by means of in each case a metal connecting plate (14, 18), which likewise has longitudinal folds (15, 16) on two edges, by the longitudinal folds (12, 15, 13, 16) engaging in one another in order to form a sturdy housing, by means of a positive-locking connection, for the sound-damping material (17) arranged therein.
- Sound-damping baffle according to Claim 3, characterized in that the metal connecting plate (14, 18) forms a screen (18) of equal length with the perforated metal plate (10, 11) against an adjacent cartridge or forms a connecting strap (14) which extends only over part of the length of the perforated metal plate.
- Sound-damping baffle according to Claim 3, characterized in that a plurality of cartridges (6) placed one on top of another can be placed one on top of another in each case with the U-limbs (10a, 10b, 11a, llb) of the perforated metal plates (10, 11).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH269391 | 1991-09-12 | ||
CH693/91 | 1991-09-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0531698A2 EP0531698A2 (en) | 1993-03-17 |
EP0531698A3 EP0531698A3 (en) | 1993-06-16 |
EP0531698B1 true EP0531698B1 (en) | 1998-09-02 |
Family
ID=4239457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920113051 Expired - Lifetime EP0531698B1 (en) | 1991-09-12 | 1992-07-31 | Sound-damping screen |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0531698B1 (en) |
DE (1) | DE59209481D1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009034463A1 (en) | 2009-07-22 | 2011-02-03 | Filtro Klimatechnik Gmbh | Airborne sound absorbing device, particularly for use in air conditioning units, comprises sound absorbing bodies arranged in air flow channel or housing, where cover is designed at end of front side of sound absorbing body |
Family Cites Families (4)
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 (en) * | 1979-08-02 | 1981-02-19 | Luwa Ag | HOUSING FOR AIR CONDITIONING AND VENTILATION UNITS |
DE3605684C2 (en) * | 1986-02-21 | 1996-11-21 | Wrede & Niedecken Verwaltung | Absorption silencer backdrop |
-
1992
- 1992-07-31 EP EP19920113051 patent/EP0531698B1/en not_active Expired - Lifetime
- 1992-07-31 DE DE59209481T patent/DE59209481D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0531698A2 (en) | 1993-03-17 |
DE59209481D1 (en) | 1998-10-08 |
EP0531698A3 (en) | 1993-06-16 |
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