FR2892886B1 - Transducteur electrodynamique, applications aux haut-parleurs et geophones - Google Patents

Transducteur electrodynamique, applications aux haut-parleurs et geophones

Info

Publication number
FR2892886B1
FR2892886B1 FR0553331A FR0553331A FR2892886B1 FR 2892886 B1 FR2892886 B1 FR 2892886B1 FR 0553331 A FR0553331 A FR 0553331A FR 0553331 A FR0553331 A FR 0553331A FR 2892886 B1 FR2892886 B1 FR 2892886B1
Authority
FR
France
Prior art keywords
geophones
speakers
applications
electrodynamic transducer
electrodynamic
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
FR0553331A
Other languages
English (en)
Other versions
FR2892886A1 (fr
Inventor
Guy Lemarquand
Bernard Richoux
Valerie Lemarquand
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.)
Shenzhen Grandsun Electronics Co Ltd
Original Assignee
Universite du Maine
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 Universite du Maine filed Critical Universite du Maine
Priority to FR0553331A priority Critical patent/FR2892886B1/fr
Priority to EP06841994.4A priority patent/EP1946607B1/fr
Priority to PCT/FR2006/051133 priority patent/WO2007051949A2/fr
Priority to US12/092,593 priority patent/US8111870B2/en
Publication of FR2892886A1 publication Critical patent/FR2892886A1/fr
Application granted granted Critical
Publication of FR2892886B1 publication Critical patent/FR2892886B1/fr
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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/021—Reduction of eddy currents in the magnetic circuit of electrodynamic loudspeaker transducer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR0553331A 2005-11-03 2005-11-03 Transducteur electrodynamique, applications aux haut-parleurs et geophones Active FR2892886B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR0553331A FR2892886B1 (fr) 2005-11-03 2005-11-03 Transducteur electrodynamique, applications aux haut-parleurs et geophones
EP06841994.4A EP1946607B1 (fr) 2005-11-03 2006-11-02 Transducteur electrodynamique, applications aux haut-parleurs et geophones
PCT/FR2006/051133 WO2007051949A2 (fr) 2005-11-03 2006-11-02 Transducteur electrodynamique, applications aux haut-parleurs et geophones
US12/092,593 US8111870B2 (en) 2005-11-03 2006-11-02 Electrodynamic transducer and use thereof in loudspeakers and geophones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0553331A FR2892886B1 (fr) 2005-11-03 2005-11-03 Transducteur electrodynamique, applications aux haut-parleurs et geophones

Publications (2)

Publication Number Publication Date
FR2892886A1 FR2892886A1 (fr) 2007-05-04
FR2892886B1 true FR2892886B1 (fr) 2008-01-25

Family

ID=36809121

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0553331A Active FR2892886B1 (fr) 2005-11-03 2005-11-03 Transducteur electrodynamique, applications aux haut-parleurs et geophones

Country Status (4)

Country Link
US (1) US8111870B2 (fr)
EP (1) EP1946607B1 (fr)
FR (1) FR2892886B1 (fr)
WO (1) WO2007051949A2 (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2919978B1 (fr) 2007-08-09 2011-04-29 Gilles Milot Transducteur electrodynamique, notamment du type haut-parleur, a suspension ferrofluide et dispositifs associes
FR2921224B1 (fr) * 2007-09-18 2009-12-04 Orkidia Audio Structure magnetique pour moteur sans fer de haut-parleur electrodynamique, moteurs et haut-parleurs
EP2114086B1 (fr) 2008-04-30 2012-12-26 Renault S.A.S. Ensemble de moteur de transducteur à bobine sans fuites et sans fer
US8098546B2 (en) * 2009-07-08 2012-01-17 Geospace Technologies, Lp Geophone having improved sensitivity
US8208347B2 (en) * 2009-07-08 2012-06-26 Geospace Technologies, Lp Geophone having improved damping control
US8050144B2 (en) * 2009-07-08 2011-11-01 Geospace Technologies Lp Vertical geophone having improved distortion characteristics
FR2954574B1 (fr) * 2009-12-18 2014-08-08 Hutchinson Procede de fabrication d'un aimant moule.
FR2956273B1 (fr) 2010-02-10 2012-03-09 Renault Sa Moteur magnetique de transducteur electrodynamique
FR2971385B1 (fr) * 2011-02-08 2014-02-14 Renault Sa Dispositif de moteur magnetique de transducteur electrodynamique
US8548191B2 (en) 2011-04-12 2013-10-01 Harman International Industries, Incorporated Loudspeaker magnet having a channel
US9185491B2 (en) * 2011-04-12 2015-11-10 Harman International Industries, Incorporated Reinforced diaphragm for a low profile loudspeaker transducer with two sets of inner and outer magnets
US9137607B2 (en) * 2011-04-12 2015-09-15 Harman International Industries, Incorporated Low profile loudspeaker suspension system
US8879774B2 (en) * 2011-04-12 2014-11-04 Harman International Industries, Incorporated Loudspeaker magnet assembly with two inner magnets comprising a central bore
GB2489995A (en) 2011-04-15 2012-10-17 Pss Belgium Nv Magnetic circuit for a loudspeaker driver
HU229608B1 (en) * 2011-10-04 2014-03-28 Zoltan Bay Loudspeaker
US11528562B2 (en) 2011-12-23 2022-12-13 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11601761B2 (en) 2011-12-23 2023-03-07 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
JP6224324B2 (ja) * 2012-07-06 2017-11-01 ハーマン ベッカー ゲープコチレンジャー ジーアルト コールライトルト フェレルーシェグ タイヤーシャーシャイグ 音響変換器アセンブリ
JP6523182B2 (ja) 2013-03-06 2019-05-29 ハーマン ベッカー ゲープコチレンジャー ジーアルト コールライトルト フェレルーシェグ タイヤーシャーシャイグ 音響変換器アセンブリ
US9612350B2 (en) 2013-04-08 2017-04-04 Schlumberger Technology Corporation Controlled damping geophone
US11570556B2 (en) 2014-01-06 2023-01-31 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11582564B2 (en) 2014-01-06 2023-02-14 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US9130445B1 (en) * 2014-08-04 2015-09-08 David Micah Katz Electromechanical transducer with non-circular voice coil
AU2015387501B2 (en) * 2015-03-25 2018-08-23 Halliburton Energy Services, Inc. Geophone with magnetic self-damping system
CN204741558U (zh) * 2015-06-23 2015-11-04 瑞声光电科技(常州)有限公司 扬声器
CN204733374U (zh) * 2015-06-23 2015-10-28 瑞声光电科技(常州)有限公司 扬声器
CN106375915B (zh) * 2016-10-31 2024-04-16 深圳市冠旭电子股份有限公司 一种扬声器及耳机
CN110383858B (zh) 2017-03-07 2022-07-05 哈曼国际工业有限公司 扬声器
US11450302B2 (en) * 2018-03-07 2022-09-20 Harman International Industries, Incorporated Loudspeaker with magnets in ferrofluid
JP2022531254A (ja) 2019-04-30 2022-07-06 シェンツェン・ショックス・カンパニー・リミテッド 音響出力装置
FR3129023B1 (fr) * 2021-11-05 2024-04-26 Devialet Enceinte acoustique, notamment pour casque audio, comprenant des haut-parleurs coaxiaux à moteur magnétique sans pièce polaire

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142260A (en) * 1991-03-08 1992-08-25 Harman International Industries, Incorporated Transducer motor assembly
DE4317775C2 (de) * 1993-02-03 1995-02-02 Foster Electric Co Ltd Lautsprecher
FR2766028A1 (fr) * 1997-07-08 1999-01-15 Ensmse Dispositif a fort couple d'accouplements magnetiques synchrones a entrefer cylindrique
DE19980741T1 (de) * 1998-04-03 2000-07-20 Sony Corp Lautsprechervorrichtung
CA2441420C (fr) * 2001-01-04 2009-03-31 Vifa-Speak A/S Haut-parleur a double dome
KR20020073876A (ko) * 2001-03-16 2002-09-28 삼성전기주식회사 진동스피커의 이중 마그네트 구조
US6714655B2 (en) * 2001-05-11 2004-03-30 Matsushita Electric Industrial Co., Ltd. Speaker
EP1420610A4 (fr) * 2001-07-23 2006-06-28 Toshio Chikama Protection magnetique de bobine de lecture de haut-parleur
JP4167859B2 (ja) 2002-07-05 2008-10-22 Ｔｄｋ株式会社 光記録媒体用中間体および光記録媒体の製造方法
US20040105568A1 (en) * 2002-12-03 2004-06-03 Po-Hsiung Lee Speaker with enhanced magnetic flux
JP3963173B2 (ja) * 2004-01-06 2007-08-22 ソニー株式会社 スピーカ
US7706563B2 (en) * 2005-12-19 2010-04-27 Harman International Industries, Incorporated Concentric radial ring motor
EP1843628A1 (fr) * 2006-04-07 2007-10-10 Sonion Horsens A/S Haut-parleur miniature et circuit magnetique avec passage de veine d'air integree
KR100845956B1 (ko) * 2007-01-16 2008-07-11 재단법인서울대학교산학협력재단 마이크로스피커 및 마이크로 스피커 설계 방법

Also Published As

Publication number Publication date
EP1946607B1 (fr) 2017-09-20
US20090028375A1 (en) 2009-01-29
WO2007051949A3 (fr) 2007-07-12
EP1946607A2 (fr) 2008-07-23
WO2007051949A2 (fr) 2007-05-10
US8111870B2 (en) 2012-02-07
FR2892886A1 (fr) 2007-05-04

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Legal Events

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TQ Partial transmission of property
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Effective date: 20120720

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Owner name: ACOUSTICAL BEAUTY, FR

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TP Transmission of property

Owner name: SHENZHEN GRANDSUN ELECTRONIC CO., LTD., CN

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