FR2705011A1 - Loudspeaker enclosure - Google Patents
Loudspeaker enclosure Download PDFInfo
- Publication number
- FR2705011A1 FR2705011A1 FR9305481A FR9305481A FR2705011A1 FR 2705011 A1 FR2705011 A1 FR 2705011A1 FR 9305481 A FR9305481 A FR 9305481A FR 9305481 A FR9305481 A FR 9305481A FR 2705011 A1 FR2705011 A1 FR 2705011A1
- Authority
- FR
- France
- Prior art keywords
- strips
- box
- acoustic
- wall
- acoustic enclosure
- 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.)
- Granted
Links
- 239000000470 constituent Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 229920002522 Wood fibre Polymers 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000002025 wood fiber Substances 0.000 claims 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 238000007373 indentation Methods 0.000 abstract 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
- H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
Description
ENCEINTE ACOUSTIQUE
La présente Invention a pour but d'obtenir un caisson acoustique dont la face interne des parois constitutives présente une configuration assurant un très faible coeffiçient de réflexion acoustique.ACOUSTIC SPEAKER
The aim of the present invention is to obtain an acoustic box whose internal face of the constituent walls has a configuration ensuring a very low coefficient of acoustic reflection.
La présente Invention a pour but également d'obtenir un caisson acoustique dont la face interne des parois constitutives ,assure un amortissement efficace des ondes stationnaires présentes à l'intérieur du dit caisson à toutes les fréquences susceptibles d'ètres reproduites par le transducteur acoustique assoçié au dit caisson.The present invention also aims to obtain an acoustic box whose internal face of the constituent walls, ensures effective damping of standing waves present inside said box at all frequencies likely to be reproduced by the associated acoustic transducer said box.
Ces résultats sont obtenus par le frottement des molécules d'air contenues à l'intérieur du caisson ,sur la surface en relief issue du procédé d'empilage des lamelles constitutives.These results are obtained by the friction of the air molecules contained inside the box, on the raised surface resulting from the stacking process of the constituent lamellae.
Cette enceinte acoustique du type comprenant un boitier équipé d'au moins un transducteur acoustique ,est caractérisée en ce qu'au moins l'un des côtés du dit boitier est formé d'une série de lamelles paralèlles ,contigues uniquement à leurs extrémités ,de façon à en permettre le collage entres elles
Cette série de lamelles constitutives est recouverte d'une plaque externe de faible épaisseur ,de façon à obtenir des alvéoles sur la face interne de la paroi ainsi constituée
La série de lamelles paralèlles perpendiculaires au plan de la paroi ,assure la rigidité mécanique de ladite paroi ainsi constituée.This acoustic enclosure of the type comprising a box equipped with at least one acoustic transducer, is characterized in that at least one of the sides of said box is formed of a series of parallel lamellae, contiguous only at their ends, of so that they can be bonded together
This series of constituent lamellae is covered with a thin external plate, so as to obtain cells on the internal face of the wall thus formed.
The series of parallel blades perpendicular to the plane of the wall, ensures the mechanical rigidity of said wall thus formed.
La largeur des lamelles devràt ètre d'une valeur suffisante pour assurer la rigidité nécessaire au bon comportement mécanique de l'enceinte ainsi réalisée. The width of the slats should be of sufficient value to ensure the rigidity necessary for the good mechanical behavior of the enclosure thus produced.
Selon d'autres caractéristiques avantageuses mais non
limitatives:
Lesdites lamelles ,ladite plaque externe de faible
épaisseur,sont formées d'un matériau à base de fibres de
bois ou d'un matériau adapté
Lesdites lamelles et ladite plaque externe sont fixées les
unes aux autres au moyen d'un liant,par exemple de la
colle à bois vinylique ou néoprène ou de tout autre nature.According to other advantageous characteristics but not
limiting:
Said lamellae, said low external plate
thickness, are made of a material based on fibers of
wood or suitable material
Said lamellae and said outer plate are fixed
to each other by means of a binder, for example
vinyl or neoprene wood glue or any other kind.
Les dimensions et le nombre de lamelles constitutives ne
sont pas limitatives.The dimensions and the number of constituent slats do not
are not limiting.
Les dimensions des lamelles et les dimensions de la plaque
externe déterminent les dimesions du boitier désiré.The dimensions of the slats and the dimensions of the plate
external determine the dimensions of the desired housing.
Les dimensions et le nombre de lamelles constitutives assurent
le résultat acoustique recherché.The dimensions and the number of constituent slats ensure
the desired acoustic result.
Cette enceinte est réalisée sans ajouts d'éléments extérieurs
autres que ceux qui forment-sesiparoiss SafabricatSion
industrielle est simple et façile.This enclosure is made without adding external elements
other than those who form sesiparoiss SafabricatSion
industrial is simple and easy.
La figure 1 est une vue en perspective d'un mode de réalisation de l'enceinte
La figure 2 montre l'application de la plaque de faible épaisseur ( 4 ) recouvrant les parois ajourées issues de l'assemblage des lamelles constitutives 2-2' 3-3'
La figure 3 montre une vue éclatée de la disposition des lamelles constitutives ,dans l'ordre et la disposition d'assemblage par collage de leurs extrémités contigues.Figure 1 is a perspective view of an embodiment of the enclosure
Figure 2 shows the application of the thin plate (4) covering the perforated walls from the assembly of the constituent slats 2-2 '3-3'
FIG. 3 shows an exploded view of the arrangement of the constituent lamellae, in the order and arrangement of assembly by gluing their contiguous ends.
La figure 1 montre également un ajour 6 ,destiné à recevoir un transducteur adapté Enceinte acoustique comprend un boitier ( 1 ) équipé d'au moins un transducteur acoustique ( 6 ) et esP caractérisée en ce qu'au moins l'une des parois dudit boitier ( 1 ) est formé d'une série de lamelles paralèlles ( 2-2' 3-3' ) plates et allongées agencées de telle façon que la paroi ait une façe interne présentant ,selon la direction transversale aux lamelles,des saillies qui alternent avec des renfoncements. FIG. 1 also shows an aperture 6, intended to receive a suitable transducer Acoustic enclosure comprises a box (1) equipped with at least one acoustic transducer (6) and esP characterized in that at least one of the walls of said box (1) is formed by a series of parallel and flat lamellae (2-2 '3-3') arranged in such a way that the wall has an internal shape having, in the direction transverse to the lamellae, projections which alternate with recesses.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9305481A FR2705011B1 (en) | 1993-05-04 | 1993-05-04 | ACOUSTIC SPEAKER. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9305481A FR2705011B1 (en) | 1993-05-04 | 1993-05-04 | ACOUSTIC SPEAKER. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2705011A1 true FR2705011A1 (en) | 1994-11-10 |
| FR2705011B1 FR2705011B1 (en) | 1995-09-15 |
Family
ID=9446879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9305481A Expired - Fee Related FR2705011B1 (en) | 1993-05-04 | 1993-05-04 | ACOUSTIC SPEAKER. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2705011B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2768009A1 (en) * | 1997-05-27 | 1999-03-05 | Bernard Kopferschmitt | Acoustic see through wall block |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB434563A (en) * | 1934-08-13 | 1935-09-04 | Philip Keston Turner | Improvements in and relating to baffles and containers for loud speakers |
| US4509615A (en) * | 1980-02-04 | 1985-04-09 | Hruby John O | Multi-chamber enclosure for loudspeakers |
| FR2652978A1 (en) * | 1989-10-10 | 1991-04-12 | Kopferschmitt Lucien | Acoustic enclosure |
-
1993
- 1993-05-04 FR FR9305481A patent/FR2705011B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB434563A (en) * | 1934-08-13 | 1935-09-04 | Philip Keston Turner | Improvements in and relating to baffles and containers for loud speakers |
| US4509615A (en) * | 1980-02-04 | 1985-04-09 | Hruby John O | Multi-chamber enclosure for loudspeakers |
| FR2652978A1 (en) * | 1989-10-10 | 1991-04-12 | Kopferschmitt Lucien | Acoustic enclosure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2768009A1 (en) * | 1997-05-27 | 1999-03-05 | Bernard Kopferschmitt | Acoustic see through wall block |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2705011B1 (en) | 1995-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |