EP1098549A2 - Transducteur électroacoustique - Google Patents

Transducteur électroacoustique Download PDF

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Publication number
EP1098549A2
EP1098549A2 EP00890328A EP00890328A EP1098549A2 EP 1098549 A2 EP1098549 A2 EP 1098549A2 EP 00890328 A EP00890328 A EP 00890328A EP 00890328 A EP00890328 A EP 00890328A EP 1098549 A2 EP1098549 A2 EP 1098549A2
Authority
EP
European Patent Office
Prior art keywords
holding part
electroacoustic transducer
coil
membrane
retaining ring
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.)
Withdrawn
Application number
EP00890328A
Other languages
German (de)
English (en)
Other versions
EP1098549A3 (fr
Inventor
Hugo Dipl.-Ing. Dr. Lenhard-Backhaus
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
Publication of EP1098549A2 publication Critical patent/EP1098549A2/fr
Publication of EP1098549A3 publication Critical patent/EP1098549A3/fr
Withdrawn legal-status Critical Current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; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the invention relates to an electroacoustic transducer and the construction and assembly an electro-acoustic transducer based on the electrodynamic principle.
  • Such converters are used today in a whole range of fields, for example in mobile phones, in dictation machines, in walkie-talkies, in aviators and Motorcycle helmets and the like increasingly used miniaturized and only show diameter of a few millimeters.
  • the membranes used have followed this development and exist today in such areas of application mainly from plastic films with a few Micrometers thickness, which is made from the flat raw material in the heated state via stamping or dies, sometimes also in closed forms.
  • the finished membrane generally has a central, spherical section and a toroidal ring section radially outside the central dome-shaped Section.
  • the transition area there is one of two essentially cylindrical, arranged concentrically to each other and in one another at their lower end transition areas existing section, the lower connecting area is circular and represents an end face with respect to the membrane axis on which the end face of a coil is glued or otherwise connected.
  • the coil dips into the ring-shaped slot of a magnet system, so that when moving currents are induced in the coil wire between the coil and the magnet system (microphone operation) and vice versa, when AC currents flow in the coil, the coil closes Vibrations is excited, whereupon the membrane vibrates and the transducer as Speaker works.
  • the coil wires are usually on two diametrically opposite one another Out of the spool and either individually, but in most cases together, rotated by 90 ° from the execution point out of the coil, from the membrane area in the out essentially in the radial direction and to a suitable contact point.
  • This arrangement is chosen to pass through the approximately 90 ° overlapping loop arrangement the lead wires of the coil lead out to ensure that the rigidity of the Coil wire does not change and affect the vibration modes of the membrane.
  • the invention aims to simplify this assembly and therefore also machines to be used with a high clock rate.
  • this is done in that the supply wires of the coil are already in the In the course of the manufacture of the coil are connected to at least one holding part and that the membrane is connected to a ring part in the course of its manufacture, the recesses or openings for the or the holding parts of the coil supply wires having.
  • two holding parts one per supply wire, are used, which are optionally made of electrically conductive material, preferably Metal or a metallic alloy, such as steel, copper, brass or aluminum exist and which are then arranged in the retaining ring so that when they are electrically consist of conductive material, spaced from each other and compared to the magnet system are isolated.
  • electrically conductive material preferably Metal or a metallic alloy, such as steel, copper, brass or aluminum exist and which are then arranged in the retaining ring so that when they are electrically consist of conductive material, spaced from each other and compared to the magnet system are isolated.
  • the membrane is in the course or immediately after its formation connected to a part, namely the retaining ring, which is subsequently manipulated with the membrane and in particular the connection to the coil easier.
  • the coil in turn points in the area of their free supply wires either for each supply wire for itself or for both supply wires together, a holding part.
  • the holding part allows the supply wires to be positioned precisely for the further assembly of the electroacoustic transducer with respect to the ring part of the Membrane. For this purpose it is simultaneous with the bonding of the coil with the one mentioned at the beginning End face of the membrane of the holding part in the recess or Brought opening of the ring part and there by friction, by gluing, or secured in another way, so that a mechanically stable and easy to use Unity arises.
  • the holding parts can also make contact with the supply wires, so that a suitable contact point on the side of the holding parts facing away from the membrane for the supply wires or the supply wires can be in the holding parts just held or led by it and it can subsequently be outside the Core area of the electroacoustic transducer is a contacting of the wires.
  • the ring part also has all shoulders, steps, shoulders, Noses, etc. that are necessary to cover the transducer, if necessary its bottom plate and the like record or attach to it, so that the entire electroacoustic Transducer is mounted around this ring part and possibly also when assembling the finished transducer the ring part still determines its position. Thereby is the exact adjustment of the individual parts to each other and the entire converter in Device in which it is installed is considerably easier and at the same time improved.
  • FIG. 1 shows an electroacoustic transducer 1 according to the invention along its axis 2 (Fig. 3) shown exploded like an explosion sketch. From top to top below you can see the following parts: a cover 3, a membrane 4, a coil 5, a ring part 6, a holding part 7, a magnet system 8, a two-part base plate 9, two contact plates 10 and two contact springs 11.
  • the holding part 7 is in one Recess 12 of the ring member 6 is used and is there by friction, by gluing or held by clamping by the magnet system 8.
  • the supply wires of the coil 5 are so thin that they are not shown in Fig. 1 or Fig. 3 are, they open into the upper side of the holding part 7 facing the coil 5 this.
  • the holding part 7 on the feed side of the Supply wires opposite side two contacts 13 (Fig. 5), which are sufficient are dimensioned to enable problem-free contacting.
  • the contacts 13 of the holding part 7 are bent over (Fig. 7) that each one, the bottom area of the transducer 1 according to the invention partially Touch overlapping contact plate 10, 10 'and thus contact.
  • the two Contact plates 10, 10 ' are in the embodiment shown by the insulating Separating distance 14 separated from each other.
  • the contacts 13 so that they go directly to Contacting the converter can be used, for example, by being bent over be that they are resilient on corresponding contact surfaces of the apparatus, in the the converter is installed.
  • Another possibility is, for example in that the contacts can be inserted into suitable, resilient receptacles of such an apparatus to design.
  • the two contact plates are contacted 10, 10 'by springs 11, which are already in the device, not shown, in which the inventive electroacoustic transducer is installed, attached and contacted. It can thus the entire converter is inserted into a recess provided for this purpose and thereby already be contacted. In order to get the right contact, you can corresponding positioning lugs or grooves may be provided on the ring part 6.
  • the cover 3 is also on the ring part 6 elastic friction fit, it can of course also with the ring part be glued.
  • the invention is of course not based on the illustrated embodiment limited, but can be modified in various ways.
  • the ring part 6 not also take on the other tasks presented and explained here and it the holding part 7 or the holding parts 7 'need not have the shape shown.
  • each of the two supply wires which is not necessarily electrically conductive, but contains a conductor and otherwise consists of electrically insulating material.
  • a correspondingly conical design of the (respective) holding part can also be sufficient by frictional engagement firm fixation can be achieved, under certain circumstances the connection by gluing is reinforced.
  • the two holding parts if for one electrical insulation between the supply wires is provided in contact with each other stand or be connected.
  • the holding part can have a wide variety of shapes and mechanical properties: So it is possible that it consists of a kind of adhesive tape on which the supply wires are glued on.
  • the adhesive tape can be closed in a ring be and run around the entire inner circumference of the retaining ring 6.
  • the recess 12 of the retaining ring 6 in this case is simply one of the thickness of the adhesive strip corresponding enlargement of the inner radius over the corresponding peripheral section. If both supply wires are attached to a common holding part, must care must be taken that they remain electrically insulated from one another. To do this is either to manufacture the holding part from electrically insulating material or at least one of the Wires are to be connected to the holding part in an insulating manner. It is from the invention seen here indifferent whether one then considers the holding part as isolating or the insulating connection as a second holding part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
EP00890328A 1999-11-05 2000-11-03 Transducteur électroacoustique Withdrawn EP1098549A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT187199 1999-11-05
AT187199 1999-11-05
AT942000A AT411558B (de) 1999-11-05 2000-01-21 Elektroakustischer wandler
AT942000 2000-01-21

Publications (2)

Publication Number Publication Date
EP1098549A2 true EP1098549A2 (fr) 2001-05-09
EP1098549A3 EP1098549A3 (fr) 2005-12-07

Family

ID=25597043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00890328A Withdrawn EP1098549A3 (fr) 1999-11-05 2000-11-03 Transducteur électroacoustique

Country Status (3)

Country Link
EP (1) EP1098549A3 (fr)
JP (1) JP2001169388A (fr)
AT (1) AT411558B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3352476A4 (fr) * 2015-09-15 2019-01-23 Goertek Inc. Récepteur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020057897A (ko) * 2002-05-28 2002-07-12 전창만 다기능 전자음향변환기의 구조
KR20020057899A (ko) * 2002-05-28 2002-07-12 전창만 다기능 전자음향변환기의 구조
KR20110004764U (ko) * 2009-11-06 2011-05-13 주식회사 비에스이 마이크로 스피커
JP4989737B2 (ja) * 2010-01-29 2012-08-01 株式会社エヌ・ティ・ティ・ドコモ 判定プログラム、判定装置及び判定方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5911237B2 (ja) * 1979-08-16 1984-03-14 株式会社精工舎 圧電スピ−カ
JPS60185495A (ja) * 1984-03-05 1985-09-20 Matsushita Electric Ind Co Ltd 端子板装置
GB2160741B (en) * 1984-04-24 1988-04-27 Wharfedale Loudspeaker Moving-coil loudspeaker drive unit
DD258738A3 (de) * 1986-03-24 1988-08-03 Hermsdorf Keramik Veb Elektroakustischer wandler
JPH05244687A (ja) * 1992-02-28 1993-09-21 Sony Corp スピーカ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3352476A4 (fr) * 2015-09-15 2019-01-23 Goertek Inc. Récepteur

Also Published As

Publication number Publication date
JP2001169388A (ja) 2001-06-22
EP1098549A3 (fr) 2005-12-07
ATA942000A (de) 2003-07-15
AT411558B (de) 2004-02-25

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