EP3632136A1 - Electrodynamic loudspeaker having a centred suspension joint - Google Patents

Electrodynamic loudspeaker having a centred suspension joint

Info

Publication number
EP3632136A1
EP3632136A1 EP18726191.2A EP18726191A EP3632136A1 EP 3632136 A1 EP3632136 A1 EP 3632136A1 EP 18726191 A EP18726191 A EP 18726191A EP 3632136 A1 EP3632136 A1 EP 3632136A1
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
assembly
seal
proximal
frame
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
Application number
EP18726191.2A
Other languages
German (de)
French (fr)
Other versions
EP3632136B1 (en
Inventor
Max RAINER
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.)
Devialet SA
Original Assignee
Devialet SA
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 Devialet SA filed Critical Devialet SA
Publication of EP3632136A1 publication Critical patent/EP3632136A1/en
Application granted granted Critical
Publication of EP3632136B1 publication Critical patent/EP3632136B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
    • H04R2231/003—Manufacturing aspects of the outer suspension of loudspeaker or microphone diaphragms or of their connecting aspects to said diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/204—Material aspects of the outer suspension of loudspeaker diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/207—Shape aspects of the outer suspension of loudspeaker diaphragms

Definitions

  • the present invention relates to an electrodynamic loudspeaker comprising a frame, an assembly movable relative to the frame in translation along an axis of the loudspeaker around an occupied equilibrium position when the loudspeaker is at rest, the assembly having at least one membrane configured to emit sound waves, and at least one suspension seal of the assembly, the seal forming a loop around the assembly, and comprising: a first end attached to the assembly, a second end fixed on the frame, and a main part connecting the first end and the second end and providing an axial flexibility of the seal.
  • the invention also relates to an acoustic enclosure incorporating such a loudspeaker, and a motor vehicle comprising at least one such acoustic enclosure.
  • the invention finally relates to a method of installing at least one suspension joint in such a loudspeaker.
  • the loudspeaker results from the assembly of a plurality of parts and its sound qualities can be influenced positively or negatively by the quality of the assembly.
  • An object of the invention is therefore to provide a loudspeaker of the type described above, whose sound quality is little or not influenced by assembly operations, including the suspension joint and facilitate assembly.
  • the subject of the invention is a loudspeaker of the type described above, in which the first end or the second end comprises a portion distal to the main part, and a proximal part, the distal part being more compressible radially than the proximal portion, and being compressed radially between the proximal portion and a stop of the assembly or frame.
  • the loudspeaker comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:
  • the distal portion has a distal compressibility coefficient
  • the proximal portion has a proximal compressibility coefficient
  • the distal compressibility coefficient is at least twice, preferably ten times, or even a hundred times, greater than the coefficient of proximal compressibility
  • the seal has a cradle cross section in the equilibrium position
  • the distal portion and the proximal portion are made of different materials
  • the distal portion comprises a lip, the lip projecting radially from the proximal portion inwards and flexing against said stop;
  • the distal portion has a thickness distal along the axis
  • the proximal portion has a proximal thickness along the axis
  • the proximal thickness is strictly greater than the distal thickness
  • the invention also relates to an acoustic enclosure comprising at least one loudspeaker as described above.
  • the invention finally relates to a method of installing at least one seal in an electrodynamic loudspeaker, the speaker comprising, at least once mounted, a frame, a movable assembly relative to the frame in translation according to an axis of the loudspeaker around an occupied equilibrium position when the loudspeaker is at rest, the assembly comprising at least one membrane configured to emit sound waves, the method comprising the following steps:
  • the seal comprising a first end located radially on the assembly side, a second end located radially on the side of the frame, and a main part connecting the first end; end and the second end and configured to provide axial flexibility of the seal, the first end and / or the second end comprising a portion proximal to the main portion, and a distal portion more radially compressible than the proximal portion;
  • the method comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:
  • the distal portion is mechanically secured to the proximal portion and remains in the loudspeaker after the fixing step;
  • the distal portion is mechanically distinct from the proximal portion, or linked to the proximal portion by a frangible connection, the method further comprising a withdrawal of the distal portion after the attachment of the first end and / or the second end, once the centering achieved, the distal portion removed is not intended to remain in the speaker.
  • FIG. 1 is a sectional view of an acoustic enclosure according to the invention
  • FIG. 2 is a detail of FIG. 1 centered on two suspension joints of a loudspeaker of the acoustic enclosure represented in FIG. 1;
  • FIG. 3 is a detail of FIG. 2 centered on one end of one of the suspension joints shown in FIGS. 1 and 2,
  • FIGS. 4 to 6 are respectively views, similar to FIG. 3, of suspension joints constituting variants of the gasket shown in FIGS. 1 to 3, and
  • FIG. 7 is a detailed view of a variant of one of the joints shown in FIG.
  • the acoustic enclosure 1 is for example adapted to be integrated into the passenger compartment (not shown) of a motor vehicle (not shown).
  • the loudspeaker 1 comprises a box 3, a loudspeaker 5 according to the invention, and advantageously other speakers 7, 9, 1 1.
  • the casing 3 has for example a generally spherical shape, with the exception, in the example shown, of a substantially planar face 13 surrounding the loudspeaker 11.
  • the speaker 7 is structurally analogous to the speaker 5 and will not be described in detail.
  • the speaker 7 is advantageously mounted head to tail with the speaker 5 along an axis D of the latter.
  • the speaker 7 is for example a subwoofer, that is to say, configured to transmit in a bandwidth extending for example from 15 Hz to about 500 Hz.
  • the loudspeaker 9 is for example a loudspeaker of medium and treble, that is to say configured for example to transmit in a bandwidth extending for example from 200 Hz to 25 kHz.
  • the loudspeaker 9 has a protective grid 15 advantageously located in the continuity of the box 3.
  • the speaker 9 is configured to transmit directly into an interior volume (not shown) of the passenger compartment of the motor vehicle.
  • the speaker 1 1 is for example also configured to emit in the medium and treble, but in one or conduits (not shown) defined by the passenger compartment of the motor vehicle.
  • the loudspeaker 5 comprises a frame 17, a magnetic circuit 19 defining at least one gap 21, a set 23 movable relative to the frame in translation along the axis D of the loudspeaker around an equilibrium position occupied when the loudspeaker is at rest, and two joints 25, 27 for suspending the assembly.
  • the frame 17 is quite small.
  • the frame 17 is mechanically secured to the casing 3.
  • the assembly 23 comprises a membrane 29 configured to emit sound waves, a coil holder 31 fixed on the membrane, a coil 33 fixed on the coil carrier and located in the gap 21, and a connecting member 35 also fixed on the membrane.
  • the membrane 29 is for example convex, the convexity being advantageously turned towards the outside of the loudspeaker 5.
  • the membrane 29 is for example spherical, with the exception of a peripheral edge 39.
  • the peripheral edge 39 is located vis-à-vis an edge 41 of the box 3 defining an opening across which the membrane 29 extends.
  • the reel holder 31 and the connecting member 35 have for example a substantially cylindrical shape of axis D.
  • the seals 25, 27 are structurally similar, so only the seam 25 will be described in detail below.
  • the seal 25 forms an elastic loop around the assembly 23.
  • the seal 25 comprises a first end 39A fixed to the assembly 23, a second end 41 A fixed to the frame 17, and a main portion 43 connecting the first end and the second end and providing an axial flexibility of the seal.
  • the seal 25 defines a gutter 45 advantageously located under the edges 39, 41 of the membrane 29 and the box 3.
  • the seal 25 has a cradle cross section in the equilibrium position.
  • the first end 39A and the second end 41A form respectively respectively substantially radially oriented flanges and facilitating the attachment of the gasket 25.
  • the second end 41 A is advantageously bonded to the frame 17, for example by a lower face 47 directed towards the inside of the loudspeaker 5.
  • first end 39A and the second end 41A are for example located axially substantially at the same level.
  • the first end 39A is for example glued to a ring 49 mechanically secured to the connecting member 35.
  • the first end 39A includes a distal portion 51 relative to the main portion 43, and a proximal portion 53 ( Figure 3).
  • the distal portion 51 is radially closer to the axis D than the proximal portion 53.
  • the first end 39A is for example glued on an inner face 54 of the ring 49.
  • the distal portion 51 is more radially compressible than the proximal portion 53, and is compressed radially between the distal portion and an abutment 55 of the ring 49.
  • radially compressed is meant here that the distal portion 51 receives a pressure in the radial direction from both the proximal portion 53 and the stopper 55.
  • the distal portion 51 has a distal compressibility coefficient.
  • the proximal portion 53 has a coefficient of proximal compressibility.
  • the distal compressibility coefficient is advantageously at least twice, preferably ten times or even a hundred times greater than the greater than the coefficient of proximal compressibility.
  • compression coefficient or “compressibility” is meant conventionally the magnitude - (1 / L). (DL / dF), where:
  • L represents the extension (in meters) in the radial direction of the part of the joint considered
  • F represents a force radially applied to the part considered per unit length of the joint considered (in N / m), and
  • dL / dF is the derivative of L with respect to F.
  • the distal portion 51 contracts more easily than the proximal portion 53 in the radial direction.
  • the distal portion 51 is formed by a lip 57 protruding radially inwardly from the proximal portion 53.
  • the lip 57 is bent against the face 55 and deflected for example towards the inside of the loudspeaker 5.
  • the main part 43 of the gasket 27 is not turned towards the inside of the loudspeaker
  • the first end 39A of the seal 25 is coated with glue.
  • the seal 25 is then arranged around the assembly 23 so as to form a loop around the axis D.
  • the bonded portion of the first end 39A is placed against the lower face 54 of the ring 49.
  • the lip 57 is placed in flexion against the radially outer face 55 of the ring 49.
  • the distal portion 51 of the first end 39A is compressed radially against the face 55, because the loop formed by the seal 25 is disposed around the assembly 23.
  • the greater compressibility of the distal portion 51 of the first end 39A of the seal 25 allows centering of the seal relative to the assembly 23 and prevents the first end 39A is stretched in the direction of its length about the axis D .
  • the greater compressibility of the distal portion 51 also makes it possible to compensate for the fact that the diameter of the first end about the axis D is a little too large or a little too small because of the manufacturing tolerances of the seal 25.
  • the proximal portion 53 is fixed on the assembly 23 by gluing.
  • the second end 41 A ( Figure 2) is also bonded to the frame 17.
  • the seal 25 is then in place and perfectly centered.
  • the seals 25, 27 are put in place more easily and their centering is easier, which reduces the risks of a bad placement of the seals or a tension of the first end 39A in the meaning of its length.
  • seal 125 constituting a first variant of the seal 25 shown in FIGS. 2 and 3 is described.
  • the variants advantageously also apply to the seal 27.
  • the seal 125 is similar to the seal 25. Similar elements will not be described again. Only the differences will be described in detail below.
  • the distal portion 51 has a distal thickness E1 along the axis D.
  • the proximal portion 53 has a proximal thickness E2.
  • the proximal thickness E2 is strictly greater than the distal thickness E1.
  • distal portion 51 has a compressibility in the radial direction greater than the compressibility of the proximal portion 53.
  • the proximal thickness E2 is 3 times, preferably 10 times, greater than the distal thickness E1.
  • the gasket 125 is installed in the same manner as the gasket 25.
  • seal 225 constituting a second variant of the seal 25 shown in Figures 2 and 3.
  • the seal 225 is similar to the seal 25. The similar elements will not be described again. Only the differences will be described in detail below.
  • the first end 39A includes a distal portion 251 separate from the proximal portion 53.
  • the seal 225 is in two pieces.
  • the distal portion 251 is adapted to be removed once the seal 225 has been in place and the centering relative to the assembly 23 has been performed.
  • the proximal portion 53 is coated with glue and placed against the ring 49. Once the centering is performed, the distal portion 251 is removed, which does not remain in the speaker 5.
  • seal 325 constituting an alternative of the seal 225 shown in Figure 5.
  • the seal 325 is similar to the seal 225.
  • the distal portion 51 of the first end 39A does not constitute an element distinct from the proximal portion 53, but is connected to the proximal portion 53 by a frangible link 354.
  • the distal portion 51 is separated from the proximal portion 53 and removed from the speaker 5.
  • the proximal portion of the first end 39A is for example made of a material different from that of the distal portion.
  • the proximal portion is made of SB (styrene-butadiene) of hardness 60 Shore A
  • the distal portion is made of alveolar EPDM (ethylene-propylene-diene monomer).
  • the second end 41 A also comprises a distal portion 51, and a proximal portion 53 less compressible radially than the distal portion.
  • this is obtained thanks to a lip 357 similar to the lip 57 shown in FIG.
  • the distal portion 51 of the second end 41 A is radially further from the axis D than the proximal portion 53.
  • the difference in compressibility is obtained in different ways as explained above for the first end 39A.
  • the greatest radial compressibility of the distal portion of the first end 39A and / or the second end 41A is ensured respectively by a lip, a lower axial thickness, and / or a material different, these different possibilities possibly being combined.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

The invention relates to an electrodynamic loudspeaker having: - a frame (17), - an assembly (23) that is movable in translation with respect to the frame along an axis (D) of the loudspeaker about an equilibrium position that is taken up when the loudspeaker is at rest, the assembly having at least one diaphragm (29) configured to emit sound waves, and - at least one suspension joint (25) for the assembly. The joint forms a loop around the assembly and comprises: - a first end (39A) secured to the assembly, - a second end (41A) secured to the frame, and - a main part (43) that connects the first end and the second end and ensures axial flexibility of the joint. The first end or the second end comprises a distal part with respect to the main part, and a proximal part, the distal part being more radially compressible than the proximal part, and being compressed radially between the proximal part and an end stop of the assembly or of the frame.

Description

Haut-parleur électrodynamique avec joint de suspension centré  Electrodynamic loudspeaker with centered suspension seal
La présente invention concerne un haut-parleur électrodynamique comportant un châssis, un ensemble mobile par rapport au châssis en translation selon un axe du haut- parleur autour d'une position d'équilibre occupée lorsque le haut-parleur est au repos, l'ensemble comportant au moins une membrane configurée pour émettre des ondes sonores, et au moins un joint de suspension de l'ensemble, le joint formant une boucle autour de l'ensemble, et comprenant : une première extrémité fixée sur l'ensemble, une deuxième extrémité fixée sur le châssis, et une partie principale reliant la première extrémité et la deuxième extrémité et assurant une souplesse axiale du joint.  The present invention relates to an electrodynamic loudspeaker comprising a frame, an assembly movable relative to the frame in translation along an axis of the loudspeaker around an occupied equilibrium position when the loudspeaker is at rest, the assembly having at least one membrane configured to emit sound waves, and at least one suspension seal of the assembly, the seal forming a loop around the assembly, and comprising: a first end attached to the assembly, a second end fixed on the frame, and a main part connecting the first end and the second end and providing an axial flexibility of the seal.
L'invention concerne également une enceinte acoustique intégrant un tel haut- parleur, et un véhicule automobile comprenant au moins une telle enceinte acoustique.  The invention also relates to an acoustic enclosure incorporating such a loudspeaker, and a motor vehicle comprising at least one such acoustic enclosure.
L'invention concerne enfin un procédé d'installation d'au moins un joint de suspension dans un tel haut-parleur.  The invention finally relates to a method of installing at least one suspension joint in such a loudspeaker.
Le haut-parleur résulte de l'assemblage d'une pluralité de pièces et ses qualités sonores peuvent être influencées positivement ou négativement par la qualité de l'assemblage.  The loudspeaker results from the assembly of a plurality of parts and its sound qualities can be influenced positively or negatively by the quality of the assembly.
Parmi ces pièces se trouve en général un joint souple permettant de suspendre l'ensemble mobile au voisinage de la périphérie de la membrane. Ce joint est disposé tout autour de l'ensemble mobile et sa mise en place s'avère parfois délicate.  Among these parts is generally a flexible seal for suspending the movable assembly in the vicinity of the periphery of the membrane. This seal is arranged all around the mobile assembly and its implementation is sometimes difficult.
Par exemple, s'il y a un défaut de coaxialité entre l'axe du joint et l'axe du haut- parleur, son comportement mécanique est éventuellement affecté.  For example, if there is a coaxiality defect between the axis of the joint and the axis of the speaker, its mechanical behavior is possibly affected.
De même, s'il y a un défaut de coaxialité entre l'axe d'un rebord du joint et l'axe du haut-parleur ou une mise en tension dans le sens de sa longueur autour de l'axe du haut- parleur d'un rebord du joint , son comportement mécanique est éventuellement affecté par la présence de contraintes dans le bord.  Likewise, if there is a coaxiality defect between the axis of a gasket flange and the speaker axis or a tensioning in the direction of its length around the axis of the loudspeaker of a seal flange, its mechanical behavior is possibly affected by the presence of stresses in the edge.
Un but de l'invention est donc de fournir un haut-parleur du type décrit ci-dessus, dont la qualité sonore est peu ou pas influencée par les opérations d'assemblage, notamment du joint de suspension et de faciliter l'assemblage.  An object of the invention is therefore to provide a loudspeaker of the type described above, whose sound quality is little or not influenced by assembly operations, including the suspension joint and facilitate assembly.
A cet effet, l'invention a pour objet un haut-parleur du type décrit ci-dessus, dans lequel la première extrémité ou la deuxième extrémité comprend une partie distale par rapport à la partie principale, et une partie proximale, la partie distale étant plus compressible radialement que la partie proximale, et étant comprimée radialement entre la partie proximale et une butée de l'ensemble ou du châssis. Selon des modes particuliers de réalisation, le haut-parleur comprend l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou selon toutes les combinaisons techniquement possibles : For this purpose, the subject of the invention is a loudspeaker of the type described above, in which the first end or the second end comprises a portion distal to the main part, and a proximal part, the distal part being more compressible radially than the proximal portion, and being compressed radially between the proximal portion and a stop of the assembly or frame. According to particular embodiments, the loudspeaker comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:
- selon n'importe quelle direction radiale, la partie distale présente un coefficient de compressibilité distal, la partie proximale présente un coefficient de compressibilité proximal, et le coefficient de compressibilité distal est au moins deux fois, de préférence dix fois, voire cent fois, supérieur au coefficient de compressibilité proximal ;  in any radial direction, the distal portion has a distal compressibility coefficient, the proximal portion has a proximal compressibility coefficient, and the distal compressibility coefficient is at least twice, preferably ten times, or even a hundred times, greater than the coefficient of proximal compressibility;
- le joint présente une section transversale en berceau dans la position d'équilibre ;  - The seal has a cradle cross section in the equilibrium position;
- la partie distale et la partie proximale sont réalisées dans des matériaux différents ;  the distal portion and the proximal portion are made of different materials;
- la partie distale comprend une lèvre, la lèvre faisant saillie radialement à partir de la partie proximale vers l'intérieur et fléchissant contre ladite butée ; et  the distal portion comprises a lip, the lip projecting radially from the proximal portion inwards and flexing against said stop; and
- la partie distale présente une épaisseur distale selon l'axe, la partie proximale présente une épaisseur proximale selon l'axe, et l'épaisseur proximale est strictement supérieure à l'épaisseur distale.  - The distal portion has a thickness distal along the axis, the proximal portion has a proximal thickness along the axis, and the proximal thickness is strictly greater than the distal thickness.
L'invention a aussi pour objet une enceinte acoustique comprenant au moins un haut-parleur tel que décrit ci-dessus.  The invention also relates to an acoustic enclosure comprising at least one loudspeaker as described above.
L'invention a enfin pour objet un procédé d'installation d'au moins un joint dans un haut-parleur électrodynamique, le haut-parleur comprenant, au moins une fois monté, un châssis, un ensemble mobile par rapport au châssis en translation selon un axe du haut- parleur autour d'une position d'équilibre occupée lorsque le haut-parleur est au repos, l'ensemble comportant au moins une membrane configurée pour émettre des ondes sonores, le procédé comprenant les étapes suivantes :  The invention finally relates to a method of installing at least one seal in an electrodynamic loudspeaker, the speaker comprising, at least once mounted, a frame, a movable assembly relative to the frame in translation according to an axis of the loudspeaker around an occupied equilibrium position when the loudspeaker is at rest, the assembly comprising at least one membrane configured to emit sound waves, the method comprising the following steps:
- fourniture d'un joint ;  - supply of a seal;
- mise en place du joint autour de l'ensemble mobile pour former une boucle serrée, le joint comprenant une première extrémité située radialement du côté de l'ensemble, une deuxième extrémité située radialement du côté du châssis, et une partie principale reliant la première extrémité et la deuxième extrémité et configurée pour assurer une souplesse axiale du joint, la première extrémité et/ou la deuxième extrémité comprenant une partie proximale par rapport à la partie principale, et une partie distale plus compressible radialement que la partie proximale ;  placing the seal around the moving assembly to form a tight loop, the seal comprising a first end located radially on the assembly side, a second end located radially on the side of the frame, and a main part connecting the first end; end and the second end and configured to provide axial flexibility of the seal, the first end and / or the second end comprising a portion proximal to the main portion, and a distal portion more radially compressible than the proximal portion;
- compression radiale de la partie distale entre la partie proximale et une butée de l'ensemble ou du châssis ;  - Radial compression of the distal portion between the proximal portion and a stop of the assembly or frame;
- centrage du joint par rapport à la bobine ou par rapport au châssis ; et - fixation de la première extrémité sur l'ensemble, et de la deuxième extrémité sur le châssis. - centering of the seal relative to the coil or relative to the frame; and - Fixing the first end on the assembly, and the second end on the frame.
Selon des modes particuliers de réalisation, le procédé comprend l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou selon toutes les combinaisons techniquement possibles :  According to particular embodiments, the method comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:
- la partie distale est solidaire mécaniquement de la partie proximale et reste dans le haut-parleur après l'étape de fixation ; et  the distal portion is mechanically secured to the proximal portion and remains in the loudspeaker after the fixing step; and
- la partie distale est distincte mécaniquement de la partie proximale, ou liée à la partie proximale par une liaison frangible, le procédé comprenant en outre un retrait de la partie distale postérieurement à la fixation de la première extrémité et/ou de la deuxième extrémité, une fois le centrage réalisé, la partie distale retirée n'étant pas destinée à rester dans le haut-parleur.  the distal portion is mechanically distinct from the proximal portion, or linked to the proximal portion by a frangible connection, the method further comprising a withdrawal of the distal portion after the attachment of the first end and / or the second end, once the centering achieved, the distal portion removed is not intended to remain in the speaker.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels :  The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the appended drawings, in which:
- la figure 1 est une vue en coupe d'une enceinte acoustique selon l'invention, FIG. 1 is a sectional view of an acoustic enclosure according to the invention,
- la figure 2 est un détail de la figure 1 centré sur deux joints de suspension d'un haut-parleur de l'enceinte acoustique représentée sur la figure 1 , FIG. 2 is a detail of FIG. 1 centered on two suspension joints of a loudspeaker of the acoustic enclosure represented in FIG. 1;
- la figure 3 est un détail de la figure 2 centré sur une extrémité d'un des joints de suspension représenté sur les figures 1 et 2,  FIG. 3 is a detail of FIG. 2 centered on one end of one of the suspension joints shown in FIGS. 1 and 2,
- les figures 4 à 6 sont respectivement des vues, analogues à la figure 3, de joints de suspension constituant des variantes du joint représenté sur les figures 1 à 3, et  FIGS. 4 to 6 are respectively views, similar to FIG. 3, of suspension joints constituting variants of the gasket shown in FIGS. 1 to 3, and
- la figure 7 est une vue de détail d'une variante d'un des joints représentés sur la figure 2.  FIG. 7 is a detailed view of a variant of one of the joints shown in FIG.
En référence à la figure 1 , on décrit une enceinte acoustique 1 selon l'invention. With reference to FIG. 1, an acoustic enclosure 1 according to the invention is described.
L'enceinte acoustique 1 est par exemple adaptée pour être intégrée à l'habitacle (non représenté) d'un véhicule automobile (non représenté). The acoustic enclosure 1 is for example adapted to be integrated into the passenger compartment (not shown) of a motor vehicle (not shown).
L'enceinte acoustique 1 comprend un caisson 3, un haut-parleur 5 selon l'invention, et avantageusement d'autres haut-parleurs 7, 9, 1 1 .  The loudspeaker 1 comprises a box 3, a loudspeaker 5 according to the invention, and advantageously other speakers 7, 9, 1 1.
Le caisson 3 a par exemple une forme générale sphérique, à l'exception, dans l'exemple représenté, d'une face 13 sensiblement plane entourant le haut-parleur 1 1 .  The casing 3 has for example a generally spherical shape, with the exception, in the example shown, of a substantially planar face 13 surrounding the loudspeaker 11.
Le haut-parleur 7 est structurellement analogue au haut-parleur 5 et ne sera pas décrit en détail. Le haut-parleur 7 est avantageusement monté tête-bêche avec le haut- parleur 5 selon un axe D de ce dernier. Le haut-parleur 7 est par exemple un haut-parleur de grave, c'est-à-dire configuré pour émettre dans une bande passante s'étendant par exemple de 15 Hz à environ 500 Hz. Le haut-parleur 9 est par exemple un haut-parleur de médium et d'aigu, c'est-à- dire configuré par exemple pour émettre dans une bande passante s'étendant par exemple de 200 Hz à 25 kHz. Le haut-parleur 9 possède une grille de protection 15 avantageusement située dans la continuité du caisson 3. Le haut-parleur 9 est configuré pour émettre directement dans un volume intérieur (non représenté) de l'habitacle du véhicule automobile. The speaker 7 is structurally analogous to the speaker 5 and will not be described in detail. The speaker 7 is advantageously mounted head to tail with the speaker 5 along an axis D of the latter. The speaker 7 is for example a subwoofer, that is to say, configured to transmit in a bandwidth extending for example from 15 Hz to about 500 Hz. The loudspeaker 9 is for example a loudspeaker of medium and treble, that is to say configured for example to transmit in a bandwidth extending for example from 200 Hz to 25 kHz. The loudspeaker 9 has a protective grid 15 advantageously located in the continuity of the box 3. The speaker 9 is configured to transmit directly into an interior volume (not shown) of the passenger compartment of the motor vehicle.
Le haut-parleur 1 1 est par exemple également configuré pour émettre dans le médium et l'aigu, mais dans un ou des conduits (non représentés) définis par l'habitacle du véhicule automobile.  The speaker 1 1 is for example also configured to emit in the medium and treble, but in one or conduits (not shown) defined by the passenger compartment of the motor vehicle.
Comme visible sur la figure 1 , le haut-parleur 5 comprend un châssis 17, un circuit magnétique 19 définissant au moins un entrefer 21 , un ensemble 23 mobile par rapport au châssis en translation selon l'axe D du haut-parleur autour d'une position d'équilibre occupée lorsque le haut-parleur est au repos, et deux joints 25, 27 de suspension de l'ensemble.  As can be seen in FIG. 1, the loudspeaker 5 comprises a frame 17, a magnetic circuit 19 defining at least one gap 21, a set 23 movable relative to the frame in translation along the axis D of the loudspeaker around an equilibrium position occupied when the loudspeaker is at rest, and two joints 25, 27 for suspending the assembly.
Dans l'exemple représenté, le châssis 17 est assez réduit. Le châssis 17 est solidaire mécaniquement du caisson 3.  In the example shown, the frame 17 is quite small. The frame 17 is mechanically secured to the casing 3.
L'ensemble 23 comprend une membrane 29 configurée pour émettre des ondes sonores, un porte-bobine 31 fixé sur la membrane, une bobine 33 fixée sur le porte- bobine et située dans l'entrefer 21 , et un organe de liaison 35 également fixé sur la membrane.  The assembly 23 comprises a membrane 29 configured to emit sound waves, a coil holder 31 fixed on the membrane, a coil 33 fixed on the coil carrier and located in the gap 21, and a connecting member 35 also fixed on the membrane.
La membrane 29 est par exemple convexe, la convexité étant avantageusement tournée vers l'extérieur du haut-parleur 5. La membrane 29 est par exemple sphérique, à l'exception d'un bord périphérique 39.  The membrane 29 is for example convex, the convexity being advantageously turned towards the outside of the loudspeaker 5. The membrane 29 is for example spherical, with the exception of a peripheral edge 39.
Le bord périphérique 39 est situé en vis-à-vis d'un bord 41 du caisson 3 définissant une ouverture en travers de laquelle la membrane 29 s'étend.  The peripheral edge 39 is located vis-à-vis an edge 41 of the box 3 defining an opening across which the membrane 29 extends.
Le porte-bobine 31 et l'organe de liaison 35 ont par exemple une forme sensiblement cylindrique d'axe D.  The reel holder 31 and the connecting member 35 have for example a substantially cylindrical shape of axis D.
Les joints 25, 27 sont structurellement analogues, aussi seul le joint 25 sera décrit en détail ci-après.  The seals 25, 27 are structurally similar, so only the seam 25 will be described in detail below.
Le joint 25 forme une boucle élastique autour de l'ensemble 23.  The seal 25 forms an elastic loop around the assembly 23.
En section perpendiculairement à la boucle, comme représenté sur la figure 2, le joint 25 comprend une première extrémité 39A fixée sur l'ensemble 23, une deuxième extrémité 41 A fixée sur le châssis 17, et une partie principale 43 reliant la première extrémité et la deuxième extrémité et assurant une souplesse axiale du joint. Le joint 25 définit une gouttière 45 avantageusement située sous les bords 39, 41 de la membrane 29 et du caisson 3. Dans l'exemple représenté, le joint 25 présente une section transversale en berceau dans la position d'équilibre. In section perpendicular to the loop, as shown in Figure 2, the seal 25 comprises a first end 39A fixed to the assembly 23, a second end 41 A fixed to the frame 17, and a main portion 43 connecting the first end and the second end and providing an axial flexibility of the seal. The seal 25 defines a gutter 45 advantageously located under the edges 39, 41 of the membrane 29 and the box 3. In the example shown, the seal 25 has a cradle cross section in the equilibrium position.
La première extrémité 39A et la deuxième extrémité 41 A forment par exemple respectivement des rebords orientés sensiblement radialement et facilitant la fixation du joint 25.  The first end 39A and the second end 41A form respectively respectively substantially radially oriented flanges and facilitating the attachment of the gasket 25.
La deuxième extrémité 41 A est avantageusement collée sur le châssis 17, par exemple par une face inférieure 47 dirigée du côté intérieur du haut-parleur 5.  The second end 41 A is advantageously bonded to the frame 17, for example by a lower face 47 directed towards the inside of the loudspeaker 5.
Dans la position de repos, la première extrémité 39A et la deuxième extrémité 41 A sont par exemple situées axialement sensiblement au même niveau.  In the rest position, the first end 39A and the second end 41A are for example located axially substantially at the same level.
La première extrémité 39A est par exemple collée sur une bague 49 solidaire mécaniquement de l'organe de liaison 35.  The first end 39A is for example glued to a ring 49 mechanically secured to the connecting member 35.
La première extrémité 39A comprend une partie distale 51 par rapport à la partie principale 43, et une partie proximale 53 (figure 3). La partie distale 51 est radialement plus proche de l'axe D que la partie proximale 53.  The first end 39A includes a distal portion 51 relative to the main portion 43, and a proximal portion 53 (Figure 3). The distal portion 51 is radially closer to the axis D than the proximal portion 53.
La première extrémité 39A est par exemple collée sur une face interne 54 de la bague 49.  The first end 39A is for example glued on an inner face 54 of the ring 49.
La partie distale 51 est plus compressible radialement que la partie proximale 53, et est comprimée radialement entre la partie distale et une butée 55 de la bague 49.  The distal portion 51 is more radially compressible than the proximal portion 53, and is compressed radially between the distal portion and an abutment 55 of the ring 49.
Par « comprimée radialement », on entend ici que la partie distale 51 reçoit une pression dans le sens radial provenant à la fois de la partie proximale 53, et de la butée 55.  By "radially compressed" is meant here that the distal portion 51 receives a pressure in the radial direction from both the proximal portion 53 and the stopper 55.
La partie distale 51 présente un coefficient de compressibilité distal. La partie proximale 53 présente un coefficient de compressibilité proximal. Le coefficient de compressibilité distal est avantageusement au moins deux fois, de préférence dix fois, voire cent fois, supérieur au supérieur au coefficient de compressibilité proximal.  The distal portion 51 has a distal compressibility coefficient. The proximal portion 53 has a coefficient of proximal compressibility. The distal compressibility coefficient is advantageously at least twice, preferably ten times or even a hundred times greater than the greater than the coefficient of proximal compressibility.
Par « coefficient de compressibilité », ou « compressibilité », on entend de manière classique la grandeur -(1/L).(dL/dF), où :  By "compressibility coefficient", or "compressibility", is meant conventionally the magnitude - (1 / L). (DL / dF), where:
L représente l'extension (en mètre) dans le sens radial de la partie du joint considérée, et  L represents the extension (in meters) in the radial direction of the part of the joint considered, and
F représente une force appliquée radialement sur la partie considérée par unité de longueur du joint considéré (en N/m), et  F represents a force radially applied to the part considered per unit length of the joint considered (in N / m), and
dL/dF est la dérivée de L par rapport à F.  dL / dF is the derivative of L with respect to F.
Le signe « - » permet d'avoir un résultat positif, car la dérivée dL/dF est négative. Cette grandeur représente la propension à se contracter sous l'effet de l'une force radiale. Ainsi, la partie distale 51 se contracte plus facilement que la partie proximale 53 dans le sens radial. Dans l'exemple représenté sur la figure 3, la partie distale 51 est formée par une lèvre 57 faisant saillie radialement vers l'intérieur à partir de la partie proximale 53. The sign "-" makes it possible to have a positive result, because the derivative dL / dF is negative. This magnitude represents the propensity to contract under the effect of a radial force. Thus, the distal portion 51 contracts more easily than the proximal portion 53 in the radial direction. In the example shown in FIG. 3, the distal portion 51 is formed by a lip 57 protruding radially inwardly from the proximal portion 53.
La lèvre 57 est fléchie contre la face 55 et déviée par exemple vers l'intérieur du haut-parleur 5.  The lip 57 is bent against the face 55 and deflected for example towards the inside of the loudspeaker 5.
La partie principale 43 du joint 27 n'est pas tournée vers l'intérieur du haut-parleur The main part 43 of the gasket 27 is not turned towards the inside of the loudspeaker
5, mais vers la membrane 29. 5, but to the membrane 29.
Un procédé d'installation des joints 25, 27 dans le haut-parleur 5 va maintenant être décrit.  A method of installing the seals 25, 27 in the loudspeaker 5 will now be described.
La première extrémité 39A du joint 25 est enduite de colle. Le joint 25 est alors disposé autour de l'ensemble 23 de façon à former une boucle autour de l'axe D. La partie encollée de la première extrémité 39A est placée contre la face inférieure 54 de la bague 49. La lèvre 57 est placée en flexion contre la face 55 radialement externe de la bague 49.  The first end 39A of the seal 25 is coated with glue. The seal 25 is then arranged around the assembly 23 so as to form a loop around the axis D. The bonded portion of the first end 39A is placed against the lower face 54 of the ring 49. The lip 57 is placed in flexion against the radially outer face 55 of the ring 49.
La partie distale 51 de la première extrémité 39A est comprimée radialement contre la face 55, du fait que la boucle formée par le joint 25 est disposée autour de l'ensemble 23.  The distal portion 51 of the first end 39A is compressed radially against the face 55, because the loop formed by the seal 25 is disposed around the assembly 23.
La plus grande compressibilité de la partie distale 51 de la première extrémité 39A du joint 25 permet un centrage du joint par rapport à l'ensemble 23 et évite que la première extrémité 39A soit étirée dans le sens de sa longueur autour de l'axe D.  The greater compressibility of the distal portion 51 of the first end 39A of the seal 25 allows centering of the seal relative to the assembly 23 and prevents the first end 39A is stretched in the direction of its length about the axis D .
La plus grande compressibilité de la partie distale 51 permet aussi de compenser le fait que le diamètre de la première extrémité autour de l'axe D soit un peu trop grand ou un peu trop faible du fait des tolérances de fabrication du joint 25.  The greater compressibility of the distal portion 51 also makes it possible to compensate for the fact that the diameter of the first end about the axis D is a little too large or a little too small because of the manufacturing tolerances of the seal 25.
La partie proximale 53 est fixée sur l'ensemble 23 par collage.  The proximal portion 53 is fixed on the assembly 23 by gluing.
La deuxième extrémité 41 A (figure 2) est également collée sur le châssis 17.  The second end 41 A (Figure 2) is also bonded to the frame 17.
Le joint 25 est alors en place et parfaitement centré.  The seal 25 is then in place and perfectly centered.
On procède de même avec le joint 27.  The same is done with the joint 27.
Grâce aux caractéristiques décrites ci-dessus, les joints 25, 27 sont mis en place plus facilement et leur centrage est plus aisé, ce qui réduit les risques d'un mauvais placement des joints ou d'une tension de la première extrémité 39A dans le sens de sa longueur.  Thanks to the characteristics described above, the seals 25, 27 are put in place more easily and their centering is easier, which reduces the risks of a bad placement of the seals or a tension of the first end 39A in the meaning of its length.
La qualité sonore et la facilité de montage du haut-parleur 5 s'en trouve améliorées.  The sound quality and ease of installation of the speaker 5 is improved.
En référence à la figure 4, on décrit un joint 125 constituant une première variante du joint 25 représenté sur les figures 2 et 3. Les variantes s'appliquent avantageusement également au joint 27. Le joint 125 est analogue au joint 25. Les éléments similaires ne seront pas décrits à nouveau. Seules les différences seront décrites en détail ci-après. With reference to FIG. 4, a seal 125 constituting a first variant of the seal 25 shown in FIGS. 2 and 3 is described. The variants advantageously also apply to the seal 27. The seal 125 is similar to the seal 25. Similar elements will not be described again. Only the differences will be described in detail below.
Dans le joint 125, la partie distale 51 présente une épaisseur distale E1 selon l'axe D. La partie proximale 53 présente une épaisseur proximale E2. L'épaisseur proximale E2 est strictement supérieure à l'épaisseur distale E1 .  In the seal 125, the distal portion 51 has a distal thickness E1 along the axis D. The proximal portion 53 has a proximal thickness E2. The proximal thickness E2 is strictly greater than the distal thickness E1.
Ceci assure que la partie distale 51 ait une compressibilité dans le sens radial supérieure à la compressibilité de la partie proximale 53.  This ensures that the distal portion 51 has a compressibility in the radial direction greater than the compressibility of the proximal portion 53.
De préférence l'épaisseur proximale E2 est 3 fois, de préférence 10 fois, supérieure à l'épaisseur distale E1 .  Preferably the proximal thickness E2 is 3 times, preferably 10 times, greater than the distal thickness E1.
Le joint 125 s'installe de la même manière que le joint 25.  The gasket 125 is installed in the same manner as the gasket 25.
En référence à la figure 5, on décrit un joint 225 constituant une deuxième variante du joint 25 représenté sur les figures 2 et 3. Le joint 225 est analogue au joint 25. Les éléments similaires ne seront pas décrits à nouveau. Seules les différences seront décrites en détail ci-après.  Referring to Figure 5, there is described a seal 225 constituting a second variant of the seal 25 shown in Figures 2 and 3. The seal 225 is similar to the seal 25. The similar elements will not be described again. Only the differences will be described in detail below.
Dans le joint 225, la première extrémité 39A comprend une partie distale 251 distincte de la partie proximale 53. Dit autrement, le joint 225 est en deux morceaux.  In the seal 225, the first end 39A includes a distal portion 251 separate from the proximal portion 53. In other words, the seal 225 is in two pieces.
La partie distale 251 est adaptée pour être enlevée une fois que le joint 225 a été mis en place et que le centrage par rapport à l'ensemble 23 a été effectué.  The distal portion 251 is adapted to be removed once the seal 225 has been in place and the centering relative to the assembly 23 has been performed.
Pour installer le joint 225, la partie proximale 53 est enduite de colle et placée contre la bague 49. Une fois le centrage effectué, on retire la partie distale 251 , qui ne reste pas dans le haut-parleur 5.  To install the seal 225, the proximal portion 53 is coated with glue and placed against the ring 49. Once the centering is performed, the distal portion 251 is removed, which does not remain in the speaker 5.
En référence à la figure 6, on décrit un joint 325 constituant une variante du joint 225 représentée sur la figure 5. Le joint 325 est analogue au joint 225. Dans le joint 325, la partie distale 51 de la première extrémité 39A ne constitue pas un élément distinct de la partie proximale 53, mais est liée à la partie proximale 53 par une liaison frangible 354.  Referring to Figure 6, there is described a seal 325 constituting an alternative of the seal 225 shown in Figure 5. The seal 325 is similar to the seal 225. In the seal 325, the distal portion 51 of the first end 39A does not constitute an element distinct from the proximal portion 53, but is connected to the proximal portion 53 by a frangible link 354.
Ainsi, une fois que le joint 325 est mis en place, la partie distale 51 est séparée de la partie proximale 53 et retirée du haut-parleur 5.  Thus, once the seal 325 is put in place, the distal portion 51 is separated from the proximal portion 53 and removed from the speaker 5.
Dans toutes les variantes décrites ci-dessus, la partie proximale de la première extrémité 39A est par exemple réalisée dans un matériau différent de celui de la partie distale. Par exemple la partie proximale est réalisée en SB (styrène-butadiène) de dureté 60 Shore A, tandis que la partie distale est réalisée en EPDM (éthylène-propylène-diène monomère) alvéolaire.  In all the variants described above, the proximal portion of the first end 39A is for example made of a material different from that of the distal portion. For example, the proximal portion is made of SB (styrene-butadiene) of hardness 60 Shore A, whereas the distal portion is made of alveolar EPDM (ethylene-propylene-diene monomer).
En référence à la figure 7, on décrit une variante du joint 25 dans laquelle la deuxième extrémité 41 A comprend aussi une partie distale 51 , et une partie proximale 53 moins compressible radialement que la partie distale. Dans l'exemple représenté, ceci est obtenu grâce à une lèvre 357 analogue à la lèvre 57 représentée sur la figure 3. La partie distale 51 de la deuxième extrémité 41 A est radialement plus éloignée de l'axe D que la partie proximale 53. Referring to Figure 7, there is described a variant of the seal 25 wherein the second end 41 A also comprises a distal portion 51, and a proximal portion 53 less compressible radially than the distal portion. In the example shown, this is obtained thanks to a lip 357 similar to the lip 57 shown in FIG. The distal portion 51 of the second end 41 A is radially further from the axis D than the proximal portion 53.
Selon d'autres variantes, la différence de compressibilité est obtenue de différentes manières comme expliqué ci-dessus pour la première extrémité 39A.  According to other variants, the difference in compressibility is obtained in different ways as explained above for the first end 39A.
Dans toutes les variantes énumérées ci-dessus, la plus grande compressibilité radiale de la partie distale de la première extrémité 39A et/ou de la deuxième extrémité 41 A est assurée respectivement par une lèvre, une épaisseur axiale plus faible, et/ou un matériau différent, ces différentes possibilités étant éventuellement combinées.  In all the variants listed above, the greatest radial compressibility of the distal portion of the first end 39A and / or the second end 41A is ensured respectively by a lip, a lower axial thickness, and / or a material different, these different possibilities possibly being combined.
Toutes ces variantes permettent une mise en place et un centrage plus faciles des joints, ce qui réduit les risques d'un mauvais placement des joints ou d'une tension de la première extrémité ou de la deuxième extrémité dans le sens de leur longueur.  All of these variants allow for easier placement and centering of the joints, which reduces the risk of misplacement of the joints or a tension of the first end or the second end in the direction of their length.

Claims

REVENDICATIONS
1 . - Haut-parleur (5) électrodynamique comportant : 1. - Electrodynamic loudspeaker (5) comprising:
- un châssis (17),  a chassis (17),
- un ensemble (23) mobile par rapport au châssis (17) en translation selon un axe (D) du haut-parleur (5) autour d'une position d'équilibre occupée lorsque le haut-parleur (5) est au repos, l'ensemble (23) comportant au moins une membrane (29) configurée pour émettre des ondes sonores, et  an assembly (23) movable relative to the frame (17) in translation along an axis (D) of the loudspeaker (5) around an occupied equilibrium position when the loudspeaker (5) is at rest, the assembly (23) comprising at least one membrane (29) configured to emit sound waves, and
- au moins un joint (25 ; 125) de suspension de l'ensemble,  at least one seal (25; 125) for suspending the assembly,
le joint (25 ; 125) formant une boucle autour de l'ensemble (23), et comprenant : the seal (25; 125) forming a loop around the assembly (23), and comprising:
- une première extrémité (39A) fixée sur l'ensemble (23),  a first end (39A) fixed on the assembly (23),
- une deuxième extrémité (41 A) fixée sur le châssis (17), et  a second end (41 A) fixed to the frame (17), and
- une partie principale (43) reliant la première extrémité (39A) et la deuxième extrémité (41 A) et assurant une souplesse axiale du joint (25 ; 125),  - a main part (43) connecting the first end (39A) and the second end (41 A) and providing an axial flexibility of the seal (25; 125),
caractérisé en ce que la première extrémité (39A) ou la deuxième extrémité (41 A) comprend une partie distale (51 ) par rapport à la partie principale (43), et une partie proximale (53), la partie distale (51 ) étant plus compressible radialement que la partie proximale (53), et étant comprimée radialement entre la partie proximale (53) et une butée (55) de l'ensemble (23) ou du châssis (17).  characterized in that the first end (39A) or the second end (41A) comprises a distal portion (51) with respect to the main portion (43), and a proximal portion (53), the distal portion (51) being more compressible radially than the proximal portion (53), and being compressed radially between the proximal portion (53) and a stop (55) of the assembly (23) or the frame (17).
2. - Haut-parleur (5) selon la revendication 1 , dans lequel, selon n'importe quelle direction radiale (R) : 2. - loudspeaker (5) according to claim 1, wherein, in any radial direction (R):
- la partie distale (51 ) présente un coefficient de compressibilité distal,  the distal portion (51) has a distal compressibility coefficient,
- la partie proximale (53) présente un coefficient de compressibilité proximal, et the proximal portion (53) has a coefficient of proximal compressibility, and
- le coefficient de compressibilité distal est au moins deux fois, de préférence dix fois, voire cent fois, supérieur au coefficient de compressibilité proximal. the coefficient of distal compressibility is at least twice, preferably ten times or even one hundred times, greater than the coefficient of proximal compressibility.
3. - Haut-parleur (5) selon la revendication 1 ou 2, dans lequel le joint (25 ; 125) présente une section transversale en berceau dans la position d'équilibre. 3. - Loudspeaker (5) according to claim 1 or 2, wherein the seal (25; 125) has a cradle cross section in the equilibrium position.
4. - Haut-parleur (5) selon l'une quelconque des revendications 1 à 3, dans lequel la partie distale (51 ) et la partie proximale (53) sont réalisées dans des matériaux différents. 4. - loudspeaker (5) according to any one of claims 1 to 3, wherein the distal portion (51) and the proximal portion (53) are made of different materials.
5. - Haut-parleur (5) selon l'une quelconque des revendications 1 à 4, dans lequel la partie distale (51 ) comprend une lèvre (57 ; 357), la lèvre (57 ; 357) faisant saillie radialement à partir de la partie proximale (53) vers l'intérieur du haut-parleur et fléchissant contre ladite butée (55). 5. - loudspeaker (5) according to any one of claims 1 to 4, wherein the distal portion (51) comprises a lip (57; 357), the lip (57; 357) protruding radially from the proximal portion (53) towards the inside of the speaker and flexing against said stop (55).
6. - Haut-parleur (5) selon l'une quelconque des revendications 1 à 4, dans lequel :6. - loudspeaker (5) according to any one of claims 1 to 4, wherein:
- la partie distale (51 ) présente une épaisseur distale (E1 ) selon l'axe (D), the distal portion (51) has a distal thickness (E1) along the axis (D),
- la partie proximale (53) présente une épaisseur proximale (E2) selon l'axe (D), et the proximal portion (53) has a proximal thickness (E2) along the axis (D), and
- l'épaisseur proximale (E2) est strictement supérieure à l'épaisseur distale (E1 ). the proximal thickness (E2) is strictly greater than the distal thickness (E1).
7. - Enceinte acoustique (1 ) comprenant au moins un haut-parleur (5) selon l'une quelconque des revendications 1 à 6. 7. - acoustic chamber (1) comprising at least one loudspeaker (5) according to any one of claims 1 to 6.
8. - Procédé d'installation d'au moins un joint (25 ; 125 ; 225 ; 325) dans un haut- parleur (5) électrodynamique, le haut-parleur (5) comprenant, au moins une fois monté, un châssis (17), un ensemble (23) mobile par rapport au châssis (17) en translation selon un axe (D) du haut-parleur (5) autour d'une position d'équilibre occupée lorsque le haut- parleur (5) est au repos, l'ensemble (23) comportant au moins une membrane (29) configurée pour émettre des ondes sonores, le procédé comprenant les étapes suivantes : 8. - Method for installing at least one gasket (25; 125; 225; 325) in an electrodynamic loudspeaker (5), the loudspeaker (5) comprising, at least once mounted, a frame ( 17), an assembly (23) movable relative to the frame (17) in translation along an axis (D) of the loudspeaker (5) around an occupied equilibrium position when the loudspeaker (5) is at rest, the assembly (23) comprising at least one membrane (29) configured to emit sound waves, the method comprising the following steps:
- fourniture d'un joint (25 ; 125),  - supply of a seal (25; 125),
- mise en place du joint (25 ; 125) autour de l'ensemble (23) mobile pour former une boucle serrée, le joint (25 ; 125) comprenant une première extrémité (39A) située radialement du côté de l'ensemble (23), une deuxième extrémité (41 A) située radialement du côté du châssis (17), et une partie principale (43) reliant la première extrémité (39A) et la deuxième extrémité (41 A) et configurée pour assurer une souplesse axiale du joint (25 ; 125), la première extrémité (39A) et/ou la deuxième extrémité (41 A) comprenant une partie proximale (53) par rapport à la partie principale (43), et une partie distale (51 ) plus compressible radialement que la partie proximale (53),  - placing the seal (25; 125) around the assembly (23) movable to form a tight loop, the seal (25; 125) having a first end (39A) located radially on the side of the assembly (23; ), a second end (41A) located radially on the side of the frame (17), and a main portion (43) connecting the first end (39A) and the second end (41A) and configured to provide an axial flexibility of the joint (25; 125), the first end (39A) and / or the second end (41A) comprising a proximal portion (53) with respect to the main portion (43), and a distal portion (51) more radially compressible than the proximal portion (53),
- compression radiale de la partie distale (51 ) entre la partie proximale (53) et une butée (55) de l'ensemble (23) ou du châssis (17),  - radial compression of the distal portion (51) between the proximal portion (53) and a stop (55) of the assembly (23) or the frame (17),
- centrage du joint (25 ; 125) par rapport à la bobine (31 ) ou par rapport au châssis - centering the seal (25; 125) with respect to the coil (31) or with respect to the frame
(17), et (17), and
- fixation de la première extrémité (39A) sur l'ensemble (23), et de la deuxième extrémité (41 A) sur le châssis (17). - Fixing the first end (39A) on the assembly (23), and the second end (41 A) on the frame (17).
9.- Procédé selon la revendication 8, dans lequel la partie distale (51 ) est solidaire mécaniquement de la partie proximale (53) et reste dans le haut-parleur (5) après l'étape de fixation. 10.- Procédé selon la revendication 8, dans lequel la partie distale (51 ; 251 ) est distincte mécaniquement de la partie proximale (53), ou liée à la partie proximale (53) par une liaison frangible, le procédé comprenant en outre un retrait de la partie distale (51 ; 251 ) postérieurement à la fixation de la première extrémité (39A) et/ou de la deuxième extrémité (41 A), une fois le centrage réalisé, la partie distale (51 ; 251 ) retirée n'étant pas destinée à rester dans le haut-parleur (5). 9. The method of claim 8, wherein the distal portion (51) is mechanically secured to the proximal portion (53) and remains in the speaker (5) after the fixing step. The method of claim 8, wherein the distal portion (51; 251) is mechanically distinct from the proximal portion (53), or bonded to the proximal portion (53) by a frangible link, the method further comprising a removal of the distal portion (51; 251) subsequent to the fixation of the first end (39A) and / or the second end (41A), once the centering is achieved, the distal portion (51; 251) removed; being not intended to remain in the speaker (5).
EP18726191.2A 2017-05-30 2018-05-30 Electrodynamic loudspeaker having a centred suspension joint Active EP3632136B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1754732A FR3067202B1 (en) 2017-05-30 2017-05-30 ELECTRODYNAMIC SPEAKER WITH CENTER SUSPENSION JOINT
PCT/EP2018/064273 WO2018220061A1 (en) 2017-05-30 2018-05-30 Electrodynamic loudspeaker having a centred suspension joint

Publications (2)

Publication Number Publication Date
EP3632136A1 true EP3632136A1 (en) 2020-04-08
EP3632136B1 EP3632136B1 (en) 2021-05-19

Family

ID=60080885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18726191.2A Active EP3632136B1 (en) 2017-05-30 2018-05-30 Electrodynamic loudspeaker having a centred suspension joint

Country Status (4)

Country Link
EP (1) EP3632136B1 (en)
CN (1) CN110741656B (en)
FR (1) FR3067202B1 (en)
WO (1) WO2018220061A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100303276A1 (en) * 2009-05-29 2010-12-02 Rockford Corporation Loudspeaker surround mount
JP5471435B2 (en) * 2009-12-28 2014-04-16 パナソニック株式会社 Speaker diaphragm, speaker using the same, and portable terminal device
WO2013098236A1 (en) * 2011-12-29 2013-07-04 Gettop Europe R&D ApS Suspension member with integrated sealing member
CN105721992B (en) * 2016-01-21 2019-05-14 深圳市万有云科技有限公司 A kind of adaptive Q value loudspeaker

Also Published As

Publication number Publication date
CN110741656A (en) 2020-01-31
EP3632136B1 (en) 2021-05-19
FR3067202A1 (en) 2018-12-07
CN110741656B (en) 2021-11-09
WO2018220061A1 (en) 2018-12-06
FR3067202B1 (en) 2020-03-13

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