FR3028704B1 - SPEAKER MEMBRANE, AND METHOD FOR MANUFACTURING SUCH MEMBRANE - Google Patents

SPEAKER MEMBRANE, AND METHOD FOR MANUFACTURING SUCH MEMBRANE Download PDF

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Publication number
FR3028704B1
FR3028704B1 FR1461088A FR1461088A FR3028704B1 FR 3028704 B1 FR3028704 B1 FR 3028704B1 FR 1461088 A FR1461088 A FR 1461088A FR 1461088 A FR1461088 A FR 1461088A FR 3028704 B1 FR3028704 B1 FR 3028704B1
Authority
FR
France
Prior art keywords
membrane
skin
resin
manufacturing
mold
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.)
Active
Application number
FR1461088A
Other languages
French (fr)
Other versions
FR3028704A1 (en
Inventor
Bruno De La Nouvelle
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.)
Focal JMLab SAS
Original Assignee
Focal JMLab SAS
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 Focal JMLab SAS filed Critical Focal JMLab SAS
Priority to FR1461088A priority Critical patent/FR3028704B1/en
Publication of FR3028704A1 publication Critical patent/FR3028704A1/en
Application granted granted Critical
Publication of FR3028704B1 publication Critical patent/FR3028704B1/en
Active legal-status Critical Current
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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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
    • 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • 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
    • H04R2307/021—Diaphragms comprising cellulose-like materials, e.g. wood, paper, linen
    • 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
    • H04R2307/025—Diaphragms comprising polymeric materials
    • 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
    • H04R2307/029—Diaphragms comprising fibres

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

Procédé de fabrication d'une membrane de haut-parleur dans laquelle : • on superpose un ensemble de couches, à savoir - une première peau (3) formée d'un tissu de fils de haute ténacité imprégné d'une résine non totalement polymérisée ; - une couche d'âme (2) formée d'une nappe unidirectionnelle de fibres naturelles ; - une seconde peau (4) formée d'un tissu de haute ténacité imprégné d'une résine non totalement polymérisée ; • on dispose ledit ensemble de couches (1) à l'intérieur d'un moule, et on l'expose à des conditions de température et de pression permettant la polymérisation de la résine imprégnant les première et deuxième peaux (3, 4), caractérisé en ce qu'avant la mise en moule, on dispose sur la seconde peau (4) un film polymérique (5) dont la température de fusion de tout ou partie de ses composants est inférieure à la température maximale à laquelle est porté le moule.A method of manufacturing a loudspeaker membrane in which: a set of layers is superimposed, namely - a first skin (3) formed of a fabric of high tenacity threads impregnated with a resin which has not been fully polymerized; - a core layer (2) formed from a unidirectional layer of natural fibers; - a second skin (4) formed of a high tenacity fabric impregnated with a resin which is not completely polymerized; • said set of layers (1) is placed inside a mold, and it is exposed to temperature and pressure conditions allowing the polymerization of the resin impregnating the first and second skins (3, 4), characterized in that before the molding, there is placed on the second skin (4) a polymeric film (5) whose melting point of all or part of its components is lower than the maximum temperature to which the mold is brought .

FR1461088A 2014-11-17 2014-11-17 SPEAKER MEMBRANE, AND METHOD FOR MANUFACTURING SUCH MEMBRANE Active FR3028704B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1461088A FR3028704B1 (en) 2014-11-17 2014-11-17 SPEAKER MEMBRANE, AND METHOD FOR MANUFACTURING SUCH MEMBRANE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1461088 2014-11-17
FR1461088A FR3028704B1 (en) 2014-11-17 2014-11-17 SPEAKER MEMBRANE, AND METHOD FOR MANUFACTURING SUCH MEMBRANE

Publications (2)

Publication Number Publication Date
FR3028704A1 FR3028704A1 (en) 2016-05-20
FR3028704B1 true FR3028704B1 (en) 2018-03-09

Family

ID=52392042

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1461088A Active FR3028704B1 (en) 2014-11-17 2014-11-17 SPEAKER MEMBRANE, AND METHOD FOR MANUFACTURING SUCH MEMBRANE

Country Status (1)

Country Link
FR (1) FR3028704B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2549955A (en) 2016-05-03 2017-11-08 4A Mfg Gmbh Membrane plate structure for generating sound waves

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4282872B2 (en) * 2000-04-18 2009-06-24 フォスター電機株式会社 Diaphragm for electroacoustic transducer
DE10135414C1 (en) * 2001-07-25 2003-03-13 Roehm Gmbh Production of non-flat membranes for electroacoustic transducers
DE102007030665A1 (en) * 2007-07-02 2009-01-15 Norman Gerkinsmeyer Diaphragm with multi-part construction
FR3000863B1 (en) * 2013-01-07 2015-01-02 Focal Jmlab SPEAKER MEMBRANE, AND METHOD FOR MANUFACTURING SUCH MEMBRANE

Also Published As

Publication number Publication date
FR3028704A1 (en) 2016-05-20

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