EP0896497B1 - Système de reproduction de son - Google Patents

Système de reproduction de son Download PDF

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Publication number
EP0896497B1
EP0896497B1 EP98113748A EP98113748A EP0896497B1 EP 0896497 B1 EP0896497 B1 EP 0896497B1 EP 98113748 A EP98113748 A EP 98113748A EP 98113748 A EP98113748 A EP 98113748A EP 0896497 B1 EP0896497 B1 EP 0896497B1
Authority
EP
European Patent Office
Prior art keywords
membrane
volume
sound
reproduction system
sound reproduction
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.)
Expired - Lifetime
Application number
EP98113748A
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German (de)
English (en)
Other versions
EP0896497A3 (fr
EP0896497A2 (fr
Inventor
Bernhard Puls
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.)
Harman Becker Automotive Systems GmbH
Original Assignee
Harman Becker Automotive Systems GmbH
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 Harman Becker Automotive Systems GmbH filed Critical Harman Becker Automotive Systems GmbH
Publication of EP0896497A2 publication Critical patent/EP0896497A2/fr
Publication of EP0896497A3 publication Critical patent/EP0896497A3/fr
Application granted granted Critical
Publication of EP0896497B1 publication Critical patent/EP0896497B1/fr
Anticipated expiration legal-status Critical
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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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Claims (6)

  1. Système de reproduction du son
    - avec une première membrane (15) pour la reproduction de sons de basse fréquence, laquelle comporte deux surfaces (28, 29),
    - avec une autre membrane (15') disposée à intervalle axial de la première membrane (15), pour la reproduction de sons de moyenne fréquence,
    - avec un dispositif d'actionnement (14) qui actionne la première membrane (15) et l'autre membrane (15') et qui est placé entre les deux membranes (15, 15'),
    - avec des moyens de fixation (13) pour le raccordement mutuel de la première membrane (15) et du dispositif d'actionnement (14),
    - avec deux volumes de décalage (37, 37') qui sont montés chacun devant une surface (28, 29),
    - avec un premier volume d'amortissement clos (30), qui est formé par des parois d'un boîtier (12) et de la première membrane (15),
    - avec un autre volume d'amortissement clos, qui est formé par les parois (40, 41) d'un autre boîtier et de l'autre membrane (15'),
    dans lequel
    - le volume de décalage (37') adjacent à la surface (29) de la première membrane (15) qui est éloignée du volume d'amortissement, est clos à l'exception d'au moins une ouverture (35),
    - la surface de la section de toutes les ouvertures (35) est sensiblement inférieure à la surface de la section (35) de la première membrane (15), et où
    - un canal ouvert de conduction sonore (34) est raccordé à chaque ouverture (35), dont la section correspond sensiblement à la surface de la section de l'ouverture (35) à laquelle il est raccordé, et qui traverse l'autre volume d'amortissement (30') ou est radialement adjacent à celui-ci, et où
    - le volume de décalage (37') est directement relié au volume enclos par les canaux de conduction sonore (34).
  2. Système de reproduction du son selon la revendication 1, caractérisé en ce que le volume de décalage (37, 37') est calculé au moyen de la formule suivante en cas de déformation unilatérale de la première membrane (15) : volume de décalage ≤ diamètre effectif de membrane 3 × 0 , 06
    Figure imgb0004
  3. Système de reproduction du son selon la revendication 1 ou la revendication 2, caractérisé en ce que la longueur des canaux de conduction sonore (34) est inférieure ou égale à λ/8 de la fréquence limite supérieure souhaitée.
  4. Système de reproduction du son selon la revendication 1, caractérisé en ce que le ou les canaux de conduction sonore (34) sont au moins partiellement formés par les parois (40, 41) de l'autre boîtier.
  5. Système de reproduction du son selon l'une des revendications 1 à 4, caractérisé en ce que le dispositif d'actionnement (14) dispose de surfaces de paroi qui sont communicantes avec un volume gazeux d'un compartiment d'écoute (38).
  6. Système de reproduction du son selon l'une des revendications 1 à 5, caractérisé
    en ce que le dispositif d'actionnement (14) dispose pour chacune des deux membranes (15, 15') d'un système d'aimant (21, 21') autonome et comportant un aimant permanent (23, 23') et une culasse (22), et
    en ce que les deux systèmes d'aimant (21, 21') sont reliés dos à dos l'un à l'autre.
EP98113748A 1997-08-07 1998-07-23 Système de reproduction de son Expired - Lifetime EP0896497B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19734120 1997-08-07
DE19734120A DE19734120A1 (de) 1997-08-07 1997-08-07 Tonwiedergabeanordnung

Publications (3)

Publication Number Publication Date
EP0896497A2 EP0896497A2 (fr) 1999-02-10
EP0896497A3 EP0896497A3 (fr) 2003-03-26
EP0896497B1 true EP0896497B1 (fr) 2009-10-21

Family

ID=7838207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113748A Expired - Lifetime EP0896497B1 (fr) 1997-08-07 1998-07-23 Système de reproduction de son

Country Status (3)

Country Link
US (1) US6212284B1 (fr)
EP (1) EP0896497B1 (fr)
DE (2) DE19734120A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001015493A1 (fr) * 1999-08-20 2001-03-01 Fan Zhang Transducteur a deux bobines et a deux entrefers magnetiques
US7136498B1 (en) 1999-12-16 2006-11-14 Koninklijke Philips Electronics N.V. Loudspeaker having a dual chamber acoustical enclosure with two external vents and one internal vent
US20050099255A1 (en) * 2000-08-18 2005-05-12 Fan Zhang Transducer with dual coil and dual magnetic gap
JP2003102093A (ja) * 2001-09-21 2003-04-04 Citizen Electronics Co Ltd 複合スピーカー
JP3946118B2 (ja) * 2002-10-07 2007-07-18 シチズン電子株式会社 発音体の構造
US7848533B2 (en) * 2006-11-13 2010-12-07 Jason Myles Cobb Loudspeaker
US8009858B2 (en) * 2007-11-28 2011-08-30 Jason Myles Cobb Loudspeaker
US9271098B2 (en) * 2013-10-07 2016-02-23 Incipio Technologies, Inc. Audio speaker with externally reinforced passive radiator attachment
ITUA20163268A1 (it) * 2015-05-22 2017-11-09 Ask Ind Spa Gruppo trasduttore elettro-acustico inerziale.
JP7333381B2 (ja) * 2018-07-17 2023-08-24 ブループリント アコースティックス ピーティーワイ リミテッド 同軸電気音響変換器用の音響フィルタ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783820A (en) * 1985-01-03 1988-11-08 Lyngdorf Johan P Loudspeaker unit
JPH06233367A (ja) * 1993-02-03 1994-08-19 Sony Corp バスレフ型スピーカーシステム

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912865A (en) * 1973-07-13 1975-10-14 American Trading & Prod Loudspeaker arrangement
DE3902434A1 (de) 1989-01-27 1990-08-02 Uhl Sportartikel Karl Stuetzbandagen fuer gliedmassen und/oder gelenke
DE3902343A1 (de) * 1989-01-27 1990-08-02 R & H Studiosound Beck Kg Lautsprecherbox
NL9000570A (nl) * 1990-03-13 1991-10-01 Philips Nv Audio- of videoapparaat met ingebouwde luidspreker.
JPH04336794A (ja) * 1991-05-14 1992-11-24 Mitsubishi Electric Corp 低音再生用スピーカーシステム
JPH05284586A (ja) * 1992-04-01 1993-10-29 Mitsubishi Electric Corp 低音再生用スピーカシステム
KR100187565B1 (ko) * 1992-07-23 1999-06-01 도자와 가쓰도시 스피이커장치와 이것의 음질개선방법
US5629502A (en) * 1994-03-02 1997-05-13 Sony Corporation Speaker apparatus
DE29716471U1 (de) * 1997-09-15 1998-07-30 Lien Kin Lung Versteckbare Klangvorrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783820A (en) * 1985-01-03 1988-11-08 Lyngdorf Johan P Loudspeaker unit
JPH06233367A (ja) * 1993-02-03 1994-08-19 Sony Corp バスレフ型スピーカーシステム

Also Published As

Publication number Publication date
US6212284B1 (en) 2001-04-03
DE19734120A1 (de) 1999-02-18
EP0896497A3 (fr) 2003-03-26
EP0896497A2 (fr) 1999-02-10
DE59814406D1 (de) 2009-12-03

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