EP1148760B1 - Transducteur électro-acoustique - Google Patents

Transducteur électro-acoustique Download PDF

Info

Publication number
EP1148760B1
EP1148760B1 EP01890098A EP01890098A EP1148760B1 EP 1148760 B1 EP1148760 B1 EP 1148760B1 EP 01890098 A EP01890098 A EP 01890098A EP 01890098 A EP01890098 A EP 01890098A EP 1148760 B1 EP1148760 B1 EP 1148760B1
Authority
EP
European Patent Office
Prior art keywords
electroacoustic transducer
membrane
volume
transducer
mounting system
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
EP01890098A
Other languages
German (de)
English (en)
Other versions
EP1148760A3 (fr
EP1148760A2 (fr
Inventor
Hannes Lehndorfer
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.)
AKG Acoustics GmbH
Original Assignee
AKG Acoustics 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 AKG Acoustics GmbH filed Critical AKG Acoustics GmbH
Priority to AT01890098T priority Critical patent/ATE436157T1/de
Publication of EP1148760A2 publication Critical patent/EP1148760A2/fr
Publication of EP1148760A3 publication Critical patent/EP1148760A3/fr
Application granted granted Critical
Publication of EP1148760B1 publication Critical patent/EP1148760B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
    • 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
    • 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
    • H04R2307/201—Damping aspects of the outer suspension of loudspeaker diaphragms by addition of additional damping means

Definitions

  • the invention relates to a mounting system for an electroacoustic transducer comprising an electroacoustic transducer and a device equipped with this converter with a mounting location for the electroacoustic transducer, wherein the electroacoustic transducer acts either as a sounder or as a sound receiver and a membrane and a between the membrane and her having initially lying bottom-side component enclosed membrane volume.
  • the invention particularly relates to the mounting of an electroacoustic transducer in a device, for example a mobile telephone, headphones, console of a computer screen, etc.
  • An essential part of any electroacoustic transducer is the so-called main friction, an air path that connects the volume under the diaphragm, that is, the volume enclosed between the diaphragm and the first floor-mounted component, to the volume of space behind the transducer.
  • main friction an air path that connects the volume under the diaphragm, that is, the volume enclosed between the diaphragm and the first floor-mounted component, to the volume of space behind the transducer.
  • the WO 99/26450 A or the EP 1 061 767 A1 discloses a finished loudspeaker which is inserted in a loudspeaker box.
  • the loudspeaker itself is a fully functional component that requires no modification or manipulation.
  • the loudspeaker box serves only for the mounting and mechanical mounting of the loudspeaker.
  • the loudspeaker box is not able to change the acoustic characteristics of the loudspeaker and has no influence on the determining acoustic properties of the loudspeaker, such as directional characteristics, sound, frequency spectrum, etc ..
  • WO90 / 11667 discloses a mounting device for a loudspeaker.
  • the loudspeaker is fully functional and does not rely on its mounting in a holder or housing.
  • the state of the Technology describes fully functional transducers that are completely independent in their functionality from a housing or holder.
  • the invention aims to find a solution that makes it possible to adapt the main friction of an electro-acoustic transducer only with the installation in a device to the respective needs, so that all the electroacoustic transducers of a series are identical until installation, whereby the production, storage and the repair is greatly simplified.
  • these goals are achieved by providing at least one connection between the membrane volume and the surrounding volume behind the electroacoustic transducer in the form of a recess in the bottom and / or wall region of the electroacoustic transducer and that the mounting location of the device comprises at least one projection, wherein the Projection in the assembly of the electro-acoustic transducer, the recess decreases or closes and thereby defines the passage between the membrane volume and the environment volume and so desired forms the main friction.
  • This solution according to the invention actually makes it possible to install one and the same electroacoustic transducer in different devices, since the projections arranged on the device reduce or even complete the air passages provided in the electroacoustic transducer between the membrane volume and the back volume so that the respectively desired main friction is produced.
  • FIGURE shows an inventively constructed transducer with a detailed view of the associated, in this variant two-part, device area.
  • an electroacoustic transducer denoted in its entirety by 1 is mounted on the parts 2 'and 2 "of a device not shown in detail
  • the transducer 1 consists essentially of a housing 3 and, in the illustrated electroacoustic transducer Magnetic system 4.
  • a circular gap is formed between the yoke edges of the magnet system 4, in which a coil can oscillate in the axial direction, which is fastened to a membrane 6, which is currently glued to the membrane volume 5.
  • the characteristic of the electroacoustic transducer now depends essentially on how this membrane volume 5 communicates with the back volume 7.
  • the connection between the membrane volume 5 and the back volume 7 consists of a substantially annular gap 8 and a central opening 8 ".”
  • the central part 2 " a specially made part, which is attached to the converter at or just before the installation of the converter 1 into the device, for example, is glued, it can of course also the corresponding mounting location in the device formed be that the part 2 "with the part 2 'by webs or the like. In conjunction and so a part of a wall or an intermediate wall of the device, in which the transducer 1 is to be installed, represents.
  • the projections 9 also immediately fulfill the task to position the transducer 1 and its proper contact by fixing the position of the (not shown) contacts of the electroacoustic transducer. 1 to facilitate and improve.

Landscapes

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

Claims (6)

  1. Système de montage pour un transducteur électro-acoustique (1), comprenant un transducteur électro-acoustique (1) et un appareil pouvant être équipé de ce transducteur et ayant un endroit de montage pour le transducteur électro-acoustique (1), le transducteur électro-acoustique faisant office soit d'émetteur de son soit de capteur de son et comportant une membrane (6) et un volume de membrane (5) emprisonné entre la membrane (6) et le composant qui lui est le plus proche du côté du fond, caractérisé en ce que, dans la partie de fond et/ou de paroi du transducteur électro-acoustique (1), on prévoit au moins une liaison entre le volume de membrane (5) et le volume environnant à l'arrière du transducteur électro-acoustique (1) sous forme d'une échancrure (8', 8"), et que l'endroit de montage de l'appareil comprend au moins une saillie (9', 9"), la saillie (9', 9") diminuant ou fermant l'échancrure (8', 8") lors du montage du transducteur électro-acoustique (1) et définissant de ce fait le passage entre le volume de membrane (5) et le volume environnant et formant ainsi le frottement principal désiré.
  2. Système de montage selon la revendication 1, caractérisé en ce que l'échancrure est une fente (8') essentiellement annulaire.
  3. Système de montage selon la revendication 1 ou 2, caractérisé en ce que l'échancrure est une ouverture (8") essentiellement centrale.
  4. Système de montage selon l'une des revendications 1 à 3, caractérisé en ce que la/les saillie(s) (9', 9") fait/font partie(s) intégrale(s) du boîtier de l'appareil.
  5. Système de montage selon l'une des revendications 1 à 3, caractérisé en ce que la/les saillie(s) (9', 9") est/sont portée(s) par des pièces du côté de l'appareil et configurées en composants distincts.
  6. Système de montage selon la revendication 5, caractérisé en ce qu'une pièce (2') du côté de l'appareil est liée à une autre pièce (2") du côté de l'appareil par des entretoises ou similaires et forme ainsi une partie de la paroi ou d'une cloison de l'appareil.
EP01890098A 2000-04-17 2001-03-28 Transducteur électro-acoustique Expired - Lifetime EP1148760B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT01890098T ATE436157T1 (de) 2000-04-17 2001-03-28 Elektroakustischer wandler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0067500A AT408706B (de) 2000-04-17 2000-04-17 Elektroakustischer wandler
AT6752000 2000-04-17

Publications (3)

Publication Number Publication Date
EP1148760A2 EP1148760A2 (fr) 2001-10-24
EP1148760A3 EP1148760A3 (fr) 2007-04-18
EP1148760B1 true EP1148760B1 (fr) 2009-07-08

Family

ID=3678763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01890098A Expired - Lifetime EP1148760B1 (fr) 2000-04-17 2001-03-28 Transducteur électro-acoustique

Country Status (6)

Country Link
US (1) US6639991B2 (fr)
EP (1) EP1148760B1 (fr)
JP (1) JP2001313994A (fr)
CN (1) CN1227948C (fr)
AT (2) AT408706B (fr)
DE (1) DE50114968D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0219498D0 (en) * 2002-08-21 2002-10-02 Newman Paul B D Aseptic production of foodstuffs
EP1694094A1 (fr) 2005-02-18 2006-08-23 AKG Acoustics GmbH Membrane pour convertisseur dynamique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8906749D0 (en) * 1989-03-23 1989-05-10 Eurotec International Electron Speaker mounting arrangement
JP3021058B2 (ja) * 1991-01-14 2000-03-15 パイオニア株式会社 ドームスピーカ
WO1996014722A1 (fr) * 1994-11-04 1996-05-17 Philips Electronics N.V. Dispositif a enceinte et haut-parleur, et haut-parleur destine a cet appareil
US5699438A (en) * 1995-08-24 1997-12-16 Prince Corporation Speaker mounting system
AU1173799A (en) * 1997-11-19 1999-06-07 Sakuji Fukuda Speaker system

Also Published As

Publication number Publication date
US6639991B2 (en) 2003-10-28
ATA6752000A (de) 2001-06-15
EP1148760A3 (fr) 2007-04-18
AT408706B (de) 2002-02-25
EP1148760A2 (fr) 2001-10-24
JP2001313994A (ja) 2001-11-09
ATE436157T1 (de) 2009-07-15
US20020027998A1 (en) 2002-03-07
CN1227948C (zh) 2005-11-16
DE50114968D1 (de) 2009-08-20
CN1318963A (zh) 2001-10-24

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