EP0804048A3 - Lautsprecher - Google Patents

Lautsprecher Download PDF

Info

Publication number
EP0804048A3
EP0804048A3 EP97105524A EP97105524A EP0804048A3 EP 0804048 A3 EP0804048 A3 EP 0804048A3 EP 97105524 A EP97105524 A EP 97105524A EP 97105524 A EP97105524 A EP 97105524A EP 0804048 A3 EP0804048 A3 EP 0804048A3
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
permanent magnet
metal
paramagnetic
centre
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.)
Granted
Application number
EP97105524A
Other languages
English (en)
French (fr)
Other versions
EP0804048B1 (de
EP0804048A2 (de
Inventor
Stefan Geisenberger
Gerhard Krump
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 Audio Electronic 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 Audio Electronic Systems GmbH filed Critical Harman Audio Electronic Systems GmbH
Publication of EP0804048A2 publication Critical patent/EP0804048A2/de
Publication of EP0804048A3 publication Critical patent/EP0804048A3/de
Application granted granted Critical
Publication of EP0804048B1 publication Critical patent/EP0804048B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • 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
    • H04R2209/022—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)
  • Surgical Instruments (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Liquid Crystal (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

Erfindungsgemäß wird ein Lautsprecher (10) angegeben, welcher zumindest einen radialmagnetisierten Dauermagnet (12) aufweist, und dessen Aufnahme (11) aus einem para- oder diamagnetischen Werkstoff gebildet ist. Solche Lautsprecher (10) können sehr einfach und kompakt ausgebildet werden. Durch entsprechende Weiterbildungen des den Streufluß von radialmagnetisierten Dauermagneten (12) nutzenden Lautsprechern (10) ist es möglich, ohne großen Aufwand Auslenkungen von zwei Membranen (13, 13') mit identischen Widergabefrequenzen herzustellen.
EP97105524A 1996-04-26 1997-04-03 Lautsprecher Expired - Lifetime EP0804048B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19616794A DE19616794B4 (de) 1996-04-26 1996-04-26 Lautsprecher
DE19616794 1996-04-26

Publications (3)

Publication Number Publication Date
EP0804048A2 EP0804048A2 (de) 1997-10-29
EP0804048A3 true EP0804048A3 (de) 2004-07-14
EP0804048B1 EP0804048B1 (de) 2008-10-29

Family

ID=7792585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105524A Expired - Lifetime EP0804048B1 (de) 1996-04-26 1997-04-03 Lautsprecher

Country Status (4)

Country Link
US (1) US6359997B2 (de)
EP (1) EP0804048B1 (de)
AT (1) ATE413081T1 (de)
DE (2) DE19616794B4 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5802191A (en) * 1995-01-06 1998-09-01 Guenther; Godehard A. Loudspeakers, systems, and components thereof
GB2334849B (en) * 1998-02-27 2001-02-28 Simon James Norfolk The double diaphragm
US8588457B2 (en) 1999-08-13 2013-11-19 Dr. G Licensing, Llc Low cost motor design for rare-earth-magnet loudspeakers
JP2004502366A (ja) * 2000-06-27 2004-01-22 ゴードハード　エイ　グエンサー 薄型スピーカ及びシステム
GB2377849A (en) * 2001-07-21 2003-01-22 Kh Technology Corp Loudspeaker drive units with smooth transition to surround
JP3963173B2 (ja) * 2004-01-06 2007-08-22 ソニー株式会社 スピーカ
US7570774B2 (en) * 2004-05-25 2009-08-04 Estec Corporation Speaker having improved sound-radiating function to both directions
US20080247582A1 (en) * 2004-09-09 2008-10-09 Guenther Godehard A Loudspeaker and Systems
US7706563B2 (en) * 2005-12-19 2010-04-27 Harman International Industries, Incorporated Concentric radial ring motor
US20070297639A1 (en) * 2006-06-21 2007-12-27 Noll Michael A Multiple magnet loudspeaker
US8189840B2 (en) 2007-05-23 2012-05-29 Soundmatters International, Inc. Loudspeaker and electronic devices incorporating same
FR2956274B1 (fr) * 2010-02-10 2017-06-09 Renault Sas Structure de transducteur electrodynamique et son procede de fabrication
FR2960738B1 (fr) * 2010-05-28 2015-09-25 Focal Jmlab Haut-parleur acoustique
DE102010045290B4 (de) * 2010-09-14 2016-04-28 Günther Zimmer Vereinzler mit elektrodynamischem Stellglied
US8836276B2 (en) * 2011-03-07 2014-09-16 Eldon Technology Limited Charging batteries for electronic devices by talking
CN102821342A (zh) * 2011-06-10 2012-12-12 宁波升亚电子有限公司 一种扬声器
ITPD20110191A1 (it) 2011-06-13 2012-12-14 Maurizio Servadio Trasduttore elettromeccanico/elettroacustico sottile
FR3015671B1 (fr) * 2013-12-23 2020-03-20 Safran Helicopter Engines Ensemble pour turbomachine pour mesurer des vibrations subies par une pale en rotation
CN105025421A (zh) * 2014-04-17 2015-11-04 有限会社左尔佐 扬声器
US9854365B2 (en) * 2016-04-15 2017-12-26 Harman International Industries, Inc. Loudspeaker motor and suspension system
CN108513238A (zh) * 2018-05-22 2018-09-07 黄清山 一种鼓纸及具有该鼓纸的喇叭
CN108632728B (zh) * 2018-06-25 2020-08-11 歌尔股份有限公司 发声器件及便携终端

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679833A (en) * 1968-07-18 1972-07-25 Inoue K Loudspeaker system
DE2709972A1 (de) * 1977-03-08 1978-09-14 Wilhelm Dr Ing Lepper Neuer dynamischer lautsprecher
JPH01258589A (ja) * 1988-04-08 1989-10-16 Shicoh Eng Co Ltd 動電型電気音響交換器

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665352A (en) * 1970-05-12 1972-05-23 Deutsche Edelstahlwerke Ag Permanent magnet system for a loudspeaker
BE794025A (fr) * 1972-01-21 1973-05-02 Gen Electric Ensemble aimante
US4327257A (en) * 1979-09-10 1982-04-27 Schwartz Leslie H Alignment device for electro-acoustical transducers
FR2477821A1 (fr) * 1980-03-06 1981-09-11 3A Art Acoustique Appliquee Sa Haut-parleur electrodynamique
US4319096A (en) * 1980-03-13 1982-03-09 Winey James M Line radiator ribbon loudspeaker
NL8301653A (nl) * 1983-05-10 1984-12-03 Philips Nv Elektro-akoestische omzetter met een luchtdoorlatend membraan.
DK156454C (da) * 1985-01-03 1990-01-15 Johan Peter Lyngdorf Hoejttalerenhed med mere end en bas/mellemtone-hoejttaler
DE3611120A1 (de) * 1986-04-03 1987-10-08 Hans Buerk Lautsprechersystem fuer gleichmaessige rundumabstrahlung hoeherer schallfrequenzanteile
JPH0338999A (ja) * 1989-07-05 1991-02-20 Matsushita Electric Ind Co Ltd スピーカ
US5142260A (en) * 1991-03-08 1992-08-25 Harman International Industries, Incorporated Transducer motor assembly
WO1993003586A1 (en) 1991-08-05 1993-02-18 Aura Systems, Inc. Voice coil actuator
US5321762A (en) * 1991-08-05 1994-06-14 Aura Systems, Inc. Voice coil actuator
DE4215519C1 (en) * 1992-05-12 1993-09-23 Richt, Oskar Hubert, 82319 Starnberg, De Hi-fi loudspeaker with foil membrane - has coils attached to membrane corresponding to radial magnetic field lines of concentric magnetic rings of drive system
DE4234069A1 (de) 1992-10-09 1994-04-14 Nokia Deutschland Gmbh Konuslautsprecher in Leichtbauweise
KR950024611A (ko) * 1994-01-05 1995-08-21 구쯔자와 겐따로우 자기회로를 구비한 스피커
EP0680242B1 (de) * 1994-04-25 2006-06-14 Matsushita Electric Industrial Co., Ltd. Ausgedehnter Lautsprecher
JP3161677B2 (ja) * 1995-02-17 2001-04-25 アルパイン株式会社 スピーカ
KR19980032013A (ko) * 1995-12-15 1998-07-25 모리시타요오이찌 진동 발생장치
US5786741A (en) * 1995-12-21 1998-07-28 Aura Systems, Inc. Polygon magnet structure for voice coil actuator
US5809157A (en) * 1996-04-09 1998-09-15 Victor Lavrov Electromagnetic linear drive
US5805907A (en) 1996-10-04 1998-09-08 International Business Machines Corporation System and method for reducing power consumption in an electronic circuit
JPH11177198A (ja) * 1997-12-12 1999-07-02 Mitsumi Electric Co Ltd フレキシブル配線基板
JPH11268598A (ja) * 1998-03-20 1999-10-05 Inoac Corporation:Kk モールディングの取付構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679833A (en) * 1968-07-18 1972-07-25 Inoue K Loudspeaker system
DE2709972A1 (de) * 1977-03-08 1978-09-14 Wilhelm Dr Ing Lepper Neuer dynamischer lautsprecher
JPH01258589A (ja) * 1988-04-08 1989-10-16 Shicoh Eng Co Ltd 動電型電気音響交換器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 016 (E - 872) 12 January 1990 (1990-01-12) *

Also Published As

Publication number Publication date
DE19616794A1 (de) 1997-10-30
ATE413081T1 (de) 2008-11-15
EP0804048B1 (de) 2008-10-29
DE19616794B4 (de) 2005-09-29
DE59712977D1 (de) 2008-12-11
US20010043715A1 (en) 2001-11-22
US6359997B2 (en) 2002-03-19
EP0804048A2 (de) 1997-10-29

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