WO2004095881A3 - Transducteur acoustique en beryllium - Google Patents

Transducteur acoustique en beryllium Download PDF

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Publication number
WO2004095881A3
WO2004095881A3 PCT/FR2004/000704 FR2004000704W WO2004095881A3 WO 2004095881 A3 WO2004095881 A3 WO 2004095881A3 FR 2004000704 W FR2004000704 W FR 2004000704W WO 2004095881 A3 WO2004095881 A3 WO 2004095881A3
Authority
WO
WIPO (PCT)
Prior art keywords
loudspeaker
beryllium
tweeter
medium
midway
Prior art date
Application number
PCT/FR2004/000704
Other languages
English (en)
Other versions
WO2004095881A2 (fr
Inventor
Dominic Baker
Jacques Mahul
Original Assignee
Focal Jmlab S A
Dominic Baker
Jacques Mahul
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 S A, Dominic Baker, Jacques Mahul filed Critical Focal Jmlab S A
Priority to JP2006505744A priority Critical patent/JP2006523981A/ja
Priority to CA2522519A priority patent/CA2522519C/fr
Priority to EP04742314A priority patent/EP1618761A2/fr
Priority to US10/553,185 priority patent/US20060113144A1/en
Priority to AU2004231892A priority patent/AU2004231892A1/en
Publication of WO2004095881A2 publication Critical patent/WO2004095881A2/fr
Publication of WO2004095881A3 publication Critical patent/WO2004095881A3/fr
Priority to US12/365,537 priority patent/US7878297B2/en

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • 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
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/029—Manufacturing aspects of enclosures transducers
    • 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
    • H04R2307/027—Diaphragms comprising metallic materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49005—Acoustic transducer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/4908—Acoustic transducer

Landscapes

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

Abstract

Haut-parleur pour enceinte acoustique, notamment «tweeter», ou encore « medium », qui comporte une membrane sphérique à rayonnement direct, à face concave par rapport à la bobine et sur laquelle est fixée à un certain niveau, par exemple à mi-hauteur ou sensiblement à mi-hauteur, la bobine mobile afin d'assurer un couplage mécanique optimal capable de reproduire des fréquences inférieures à 1 KHz avec un rendement élevé. On emploie comme constituant de la membrane le béryllium pur ou un alliage Be/Al ou alliages analogues. Haut-parleurs de type « tweeter »ou « medium », spécialement pour enceintes acoustiques de très haute fidélité.
PCT/FR2004/000704 2003-04-16 2004-03-22 Transducteur acoustique en beryllium WO2004095881A2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2006505744A JP2006523981A (ja) 2003-04-16 2004-03-22 オーディオ用、とりわけスピーカシステムのための、凹形状の振動板をもつ、純ベリリウム製直接放射型音響変換器
CA2522519A CA2522519C (fr) 2003-04-16 2004-03-22 Transducteur acoustique en beryllium pur a radiation directe, a membrane de forme concave, pour applications audio notamment pour enceintes acoustiques
EP04742314A EP1618761A2 (fr) 2003-04-16 2004-03-22 Transducteur acoustique en beryllium
US10/553,185 US20060113144A1 (en) 2003-04-16 2004-03-22 Direct radiation pure beryllium acoustic transducer having a concave membrane , used for audio applications, especially for loudspeaker cabinets
AU2004231892A AU2004231892A1 (en) 2003-04-16 2004-03-22 Beryllium acoustic transducer
US12/365,537 US7878297B2 (en) 2003-04-16 2009-02-04 Acoustic transducer made of pure beryllium with directed radiation, with a concave-shaped diaphragm, for audio applications, in particular for acoustic enclosures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0304733A FR2854021B1 (fr) 2003-04-16 2003-04-16 Transducteur acoustiques en beryllium pur a radiation directe, a membrane de forme concave, pour applications audio notamment pour enceintes acoustiques
FR03/04733 2003-04-16

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US10/553,185 A-371-Of-International US20060113144A1 (en) 2003-04-16 2004-03-22 Direct radiation pure beryllium acoustic transducer having a concave membrane , used for audio applications, especially for loudspeaker cabinets
US12/365,537 Continuation US7878297B2 (en) 2003-04-16 2009-02-04 Acoustic transducer made of pure beryllium with directed radiation, with a concave-shaped diaphragm, for audio applications, in particular for acoustic enclosures

Publications (2)

Publication Number Publication Date
WO2004095881A2 WO2004095881A2 (fr) 2004-11-04
WO2004095881A3 true WO2004095881A3 (fr) 2004-12-29

Family

ID=33041897

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2004/000704 WO2004095881A2 (fr) 2003-04-16 2004-03-22 Transducteur acoustique en beryllium

Country Status (10)

Country Link
US (2) US20060113144A1 (fr)
EP (1) EP1618761A2 (fr)
JP (1) JP2006523981A (fr)
KR (1) KR20060008898A (fr)
CN (1) CN1774954A (fr)
AU (1) AU2004231892A1 (fr)
CA (1) CA2522519C (fr)
FR (1) FR2854021B1 (fr)
RU (1) RU2005135455A (fr)
WO (1) WO2004095881A2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2854021B1 (fr) * 2003-04-16 2006-03-31 Focal Jmlab Transducteur acoustiques en beryllium pur a radiation directe, a membrane de forme concave, pour applications audio notamment pour enceintes acoustiques
US8850893B2 (en) * 2007-12-05 2014-10-07 Valtion Teknillinen Tutkimuskeskus Device for measuring pressure, variation in acoustic pressure, a magnetic field, acceleration, vibration, or the composition of a gas
EP2139265A1 (fr) * 2008-06-23 2009-12-30 Focal-Jmlab (Sa) Moteur pour tweeter
EP2180721A1 (fr) * 2008-10-21 2010-04-28 Lautsprecher Teufel GmbH Haut-parleur à membrane plate
WO2015032085A1 (fr) * 2013-09-09 2015-03-12 东莞泉声电子有限公司 Diaphragme métallique acoustique
CN104333841A (zh) * 2014-10-27 2015-02-04 陈建兴 钛音膜热加工气压成型方法
CN204929239U (zh) * 2015-08-10 2015-12-30 常州美欧电子有限公司 扬声器
CN204929240U (zh) * 2015-08-10 2015-12-30 常州美欧电子有限公司 扬声器
CN106954155B (zh) * 2015-08-13 2019-08-16 深圳市韶音科技有限公司 骨传导扬声器
FR3045264B1 (fr) 2015-12-14 2019-01-25 Focal Jmlab Membrane acoustique pour haut-parleur et haut-parleur correspondant
US20200021918A1 (en) * 2016-12-02 2020-01-16 Tang Band Ind Co., Ltd. Tweeter, Vibration Structure and Inverted Concave Diaphragm Thereof, and Manufacturing Method and Sound Effect Reproduction Method Therefor
CN107854136A (zh) * 2017-11-24 2018-03-30 江门大诚医疗器械有限公司 一种应用于听诊器的金属振膜结构
CN110620974B (zh) * 2018-06-19 2022-01-18 宁波升亚电子有限公司 高音扬声器及其制造方法
GB201911086D0 (en) * 2019-08-02 2019-09-18 Element Six Tech Ltd Non-planar diomand body

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847981A (en) * 1987-04-30 1989-07-18 Yamaha Corporation Method for producing a diaphragm for acoustic appliances
GB2245591A (en) * 1990-06-05 1992-01-08 Sky Aluminium Diaphragm aluminum alloy plates and their preparation
JPH04287498A (ja) * 1991-03-15 1992-10-13 Yamaha Corp 音響機器用振動板

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DE2500397C2 (de) * 1975-01-07 1986-05-28 Schorlemer, Frhr. von, Reinfried, Dipl.-Phys., 3500 Kassel Membran für ein elektroakustisches Wandlersystem und damit ausgerüstetes elektroakustisches Wandlersystem
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US4129195A (en) * 1975-12-24 1978-12-12 Sanyo Electric Co., Ltd. Diaphragm for speaker
GB1563511A (en) * 1976-03-19 1980-03-26 Harwood H Diaphragms for electroacoustic transducers
JPS5379525A (en) * 1976-12-23 1978-07-14 Sony Corp Compound diaphtagm for speakers
US4112168A (en) * 1977-03-23 1978-09-05 Motorola, Inc. High stiffness speaker cone
US4404315A (en) * 1979-05-05 1983-09-13 Pioneer Electronic Corporation Molding compositions and diaphragms, arm pipes and head shells molded therefrom
US4709392A (en) * 1984-03-08 1987-11-24 Onkyo Kabushiki Kaisha Dome speaker with a diaphragm having at least one elongated cut-out portion
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US5135582A (en) * 1990-08-02 1992-08-04 Yamaha Corporation Method for forming a diaphragm and diaphragm
EP0942625A3 (fr) * 1993-06-28 2002-05-15 Matsushita Electric Industrial Co., Ltd. Procédé pour la fabrication de pièces moulées intégrales de membrane-suspension pour haut-parleurs
US6243472B1 (en) * 1997-09-17 2001-06-05 Frank Albert Bilan Fully integrated amplified loudspeaker
FR2802759B1 (fr) * 1999-12-16 2002-02-15 Pierre Fontaine Procede de fabrication d'un materiau absorbant d'ondes mecaniques de surface, materiau absorbant d'ondes mecaniques de surface et transducteur electroacoustique ainsi obtenu
JP2001189990A (ja) * 1999-12-28 2001-07-10 Jsp Corp スピーカー振動板用素材及びスピーカー振動板
US6394224B1 (en) * 2000-03-30 2002-05-28 Chun-I Liu Structure of speaker
JP2002369284A (ja) * 2001-06-04 2002-12-20 Foster Electric Co Ltd スピーカ用振動板及びその製造方法
JP3799001B2 (ja) * 2001-09-10 2006-07-19 富士彦 小林 圧電スピーカ
KR100390003B1 (en) * 2002-10-02 2003-07-04 Joo Bae Kim Bone-conduction speaker using vibration plate and mobile telephone using the same
DE20300880U1 (de) * 2003-01-21 2003-04-10 Meiloon Ind Co Lautsprecher
FR2854021B1 (fr) * 2003-04-16 2006-03-31 Focal Jmlab Transducteur acoustiques en beryllium pur a radiation directe, a membrane de forme concave, pour applications audio notamment pour enceintes acoustiques
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JP2005333277A (ja) * 2004-05-18 2005-12-02 Pioneer Electronic Corp スピーカ用センターキャップの製造方法
JP2005333322A (ja) * 2004-05-19 2005-12-02 Pioneer Electronic Corp ボビン一体型マグネシウム振動板、その製造方法及びその振動板を使用したスピーカー装置
US7274796B2 (en) * 2004-07-24 2007-09-25 Yen-Chen Chan Reinforced speaker damper
JP2006148401A (ja) * 2004-11-18 2006-06-08 Matsushita Electric Ind Co Ltd スピーカ及びその製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847981A (en) * 1987-04-30 1989-07-18 Yamaha Corporation Method for producing a diaphragm for acoustic appliances
GB2245591A (en) * 1990-06-05 1992-01-08 Sky Aluminium Diaphragm aluminum alloy plates and their preparation
JPH04287498A (ja) * 1991-03-15 1992-10-13 Yamaha Corp 音響機器用振動板

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0170, no. 97 (E - 1326) 25 February 1993 (1993-02-25) *

Also Published As

Publication number Publication date
US7878297B2 (en) 2011-02-01
WO2004095881A2 (fr) 2004-11-04
RU2005135455A (ru) 2007-06-10
CN1774954A (zh) 2006-05-17
CA2522519A1 (fr) 2004-11-04
KR20060008898A (ko) 2006-01-27
US20090200101A1 (en) 2009-08-13
EP1618761A2 (fr) 2006-01-25
US20060113144A1 (en) 2006-06-01
FR2854021B1 (fr) 2006-03-31
FR2854021A1 (fr) 2004-10-22
AU2004231892A1 (en) 2004-11-04
CA2522519C (fr) 2012-12-04
JP2006523981A (ja) 2006-10-19

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