EP0924960A3 - Suspension for sound reproduction arrangements based on the bending wave principle - Google Patents

Suspension for sound reproduction arrangements based on the bending wave principle Download PDF

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Publication number
EP0924960A3
EP0924960A3 EP98123818A EP98123818A EP0924960A3 EP 0924960 A3 EP0924960 A3 EP 0924960A3 EP 98123818 A EP98123818 A EP 98123818A EP 98123818 A EP98123818 A EP 98123818A EP 0924960 A3 EP0924960 A3 EP 0924960A3
Authority
EP
European Patent Office
Prior art keywords
suspension
core layer
sound reproduction
bending wave
panel
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
EP98123818A
Other languages
German (de)
French (fr)
Other versions
EP0924960B1 (en
EP0924960A2 (en
Inventor
Wolfgang Bachmann
Gerhard Krump
Hans-Jürgen Regl
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 EP0924960A2 publication Critical patent/EP0924960A2/en
Publication of EP0924960A3 publication Critical patent/EP0924960A3/en
Application granted granted Critical
Publication of EP0924960B1 publication Critical patent/EP0924960B1/en
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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • 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
    • H04R2307/207—Shape aspects of the outer suspension of loudspeaker diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Building Environments (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Laminated Bodies (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Erfindungsgemäß wird eine Aufhängung für Schallwiedergabeanordnungen nach dem Biegewellenprinzip angegeben. Kennzeichnend für solche Anordnungen ist es, daß ein Paneel 10 vorhanden ist, welches mit einer Halterung 17 elastisch verbunden sein muß. Das Paneel 10 wird von einer Kernschicht 11, welche eine Lochstruktur aufweist, und zwei die Kernschicht 11 bedeckenden Deckschichten 12 gebildet. Da die üblichen Randeinfassungen der herkömmlichen Lautsprechertechnik bei der Größe und dem Gewicht der Paneele 10 sehr hart ausgelegt werden müssen, wird dadurch die Schallwiedergabequalittät solcher Anordnung reduziert. Deshalb war Aufgabe der Erfindung, eine Aufhängung anzugeben, welche die Nachteile im Stand der Technik vermeidet. Dazu wird angegeben, die Aufhängung aus der Kernschicht 11 und/oder wenigstens einer der Deckschichten 12 zu bilden. Wird die elastische Befestigung aus der Kernschicht 11 selbst gebildet, wird es ohne großen Aufwand möglich, das jeweilige Paneel 10 auch entfernt von Randbereichen elastisch zu befestigen. Hierzu wird die Elastizität Lochstruktur der Kernschicht 11 als Federelement ausgenutzt.

Figure 00000001
According to the invention a suspension for sound reproduction devices according to the bending wave principle is specified. Characteristic of such arrangements is that a panel 10 is provided, which must be elastically connected to a bracket 17. The panel 10 is formed by a core layer 11 having a hole structure and two cover layers 12 covering the core layer 11. Since the usual edge surrounds of conventional speaker technology in the size and weight of the panels 10 must be designed very hard, thereby the Schallwiedergabequalittät such arrangement is reduced. It was therefore an object of the invention to provide a suspension which avoids the disadvantages of the prior art. For this purpose, it is stated to form the suspension of the core layer 11 and / or at least one of the cover layers 12. If the elastic attachment is formed from the core layer 11 itself, it is possible without great effort to secure the respective panel 10 also removed from edge regions elastically. For this purpose, the elasticity hole structure of the core layer 11 is utilized as a spring element.
Figure 00000001
EP98123818A 1997-12-20 1998-12-15 Suspension for sound reproduction arrangements based on the bending wave principle Expired - Lifetime EP0924960B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757098A DE19757098C2 (en) 1997-12-20 1997-12-20 Suspension for sound reproduction arrangements based on the bending wave principle
DE19757098 1997-12-20

Publications (3)

Publication Number Publication Date
EP0924960A2 EP0924960A2 (en) 1999-06-23
EP0924960A3 true EP0924960A3 (en) 2005-04-13
EP0924960B1 EP0924960B1 (en) 2009-11-25

Family

ID=7852892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123818A Expired - Lifetime EP0924960B1 (en) 1997-12-20 1998-12-15 Suspension for sound reproduction arrangements based on the bending wave principle

Country Status (4)

Country Link
US (1) US6160898A (en)
EP (1) EP0924960B1 (en)
JP (1) JPH11252684A (en)
DE (2) DE19757098C2 (en)

Families Citing this family (39)

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GB9806994D0 (en) * 1998-04-02 1998-06-03 New Transducers Ltd Acoustic device
US6546106B2 (en) 1996-09-03 2003-04-08 New Transducers Limited Acoustic device
DE19757099A1 (en) * 1997-12-20 1999-06-24 Nokia Deutschland Gmbh Contacting for a sound reproduction arrangement based on the bending wave principle
DE19821855A1 (en) * 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Flat panel loudspeaker
DE19821862A1 (en) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Flat panel loudspeaker
DE19821860A1 (en) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Driver for flat panel loudspeaker
DE19825866A1 (en) 1998-06-10 1999-12-16 Nokia Deutschland Gmbh Record speakers
DE19843079A1 (en) * 1998-09-19 2000-03-23 Nokia Deutschland Gmbh Multi-resonance plate
US20040188175A1 (en) * 1998-11-30 2004-09-30 Sahyoun Joseph Yaacoub Audio speaker with wobble free voice coil movement
US7225895B2 (en) * 1998-11-30 2007-06-05 Joseph Yaacoub Sahyoun Audio speaker with wobble free voice coil movement
US6675931B2 (en) 1998-11-30 2004-01-13 Joseph Yaacoub Sahyoun Low profile audio speaker
US7185735B2 (en) * 1998-11-30 2007-03-06 Joseph Yaacoub Sahyoun Audio speaker with wobble free voice coil movement
US6044925A (en) * 1998-11-30 2000-04-04 Sahyoun; Joseph Yaacoub Passive speaker
DE19943084A1 (en) * 1999-09-09 2001-04-05 Harman Audio Electronic Sys Sound transducer
EP1100287A1 (en) * 1999-11-10 2001-05-16 M- Tech(HK) Co. Ltd Loudspeaker
GB9930275D0 (en) * 1999-12-21 2000-02-09 New Transducers Ltd Loudspeakers
DE10001410C2 (en) * 2000-01-14 2001-12-06 Harman Audio Electronic Sys Flat speaker arrangement
US6826285B2 (en) 2000-08-03 2004-11-30 New Transducers Limited Bending wave loudspeaker
GB0018996D0 (en) * 2000-08-03 2000-09-20 New Transducers Ltd Bending wave loudspeaker
US6751329B2 (en) * 2000-09-21 2004-06-15 New Transducers Limited Loudspeaker driver
US7109959B2 (en) 2002-02-06 2006-09-19 Andersen Corporation Multi-task window
US7180489B2 (en) * 2002-02-06 2007-02-20 Andersen Corporation Automated multi-task window assembly
KR100676719B1 (en) * 2002-10-25 2007-02-01 마쯔시다덴기산교 가부시키가이샤 Suspension and electro-acoustic transducer using the suspension
JP4031977B2 (en) * 2002-11-26 2008-01-09 有限会社ファル Planar speaker and speaker system using the same
DE202004009076U1 (en) * 2004-06-08 2004-09-02 ACHENBACH BUSCHHüTTEN GMBH Device for measuring the tension distribution in strip-shaped rolled metal
US8116512B2 (en) * 2006-09-14 2012-02-14 Bohlender Graebener Corporation Planar speaker driver
US8204269B2 (en) * 2008-08-08 2012-06-19 Sahyoun Joseph Y Low profile audio speaker with minimization of voice coil wobble, protection and cooling
US8540049B2 (en) 2010-12-23 2013-09-24 Bose Corporation Acoustic diaphragm suspending
EP2624595A4 (en) * 2011-05-19 2015-07-01 Tang Band Ind Co Ltd Vibrating plate device of electromagnetic vibrator and manufacture method thereof
CN202949560U (en) * 2012-11-16 2013-05-22 瑞声声学科技(常州)有限公司 Sounder
US9788122B2 (en) * 2012-12-26 2017-10-10 Xin Min HUANG Vibrating panel device for electromagnetic vibrator and manufacture method thereof
DE102014012327B3 (en) * 2014-08-20 2015-12-03 Helge Bots Soundboard for improving the sound characteristics of conventional loudspeakers
US9654879B2 (en) 2014-10-24 2017-05-16 Bose Corporation Suspension for acoustic device
US9466280B2 (en) 2014-10-24 2016-10-11 Bose Corporation Acoustic device suspension
AU2016322836B2 (en) 2015-09-14 2021-07-29 Wing Acoustics Limited Improvements in or relating to audio transducers
US9924273B2 (en) 2016-03-31 2018-03-20 Bose Corporation Acoustic device configuration and method
US11166100B2 (en) 2017-03-15 2021-11-02 Wing Acoustics Limited Bass optimization for audio systems and devices
TW201904310A (en) 2017-03-22 2019-01-16 紐西蘭商威恩音響有限公司 System, method and device for audio converter, thin electronic device and hinge system
CN111818427A (en) * 2019-04-10 2020-10-23 鸿富锦精密工业（深圳）有限公司 Vibration system, speaker and method for manufacturing vibration system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1003608A (en) * 1962-01-15 1965-09-08 Akg Akustische Kino Geraete Improvements in or relating to diaphragms for loudspeakers
DE2112516B1 (en) * 1971-03-16 1972-10-19 Kurtze Guenther Dipl Phys Prof Directional loudspeaker
JPS56112197A (en) * 1980-02-12 1981-09-04 Pioneer Electronic Corp Flat diaphragm for speaker
JPS5767398A (en) * 1980-10-15 1982-04-23 Sony Corp Dynamic speaker

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US2063945A (en) * 1933-08-02 1936-12-15 Pierce George Washington Diaphragm and method
US2744042A (en) * 1951-06-21 1956-05-01 Goodyear Tire & Rubber Laminated panels
DE1132593B (en) * 1965-04-05 1962-07-05 Bolt Beranek & Newman Acoustically effective plate, especially for coupling to an electroacoustic transducer
JPS5379525A (en) * 1976-12-23 1978-07-14 Sony Corp Compound diaphtagm for speakers
JPS5748153Y2 (en) * 1977-11-26 1982-10-22
JPS603277B2 (en) * 1978-06-15 1985-01-26 ソニー株式会社 speaker device
JPS5568795A (en) * 1978-11-20 1980-05-23 Sony Corp Speaker
US4322584A (en) * 1979-06-30 1982-03-30 Pioneer Electronic Corporation Voice coil bobbin for planar diaphragm
US4410768A (en) * 1980-07-23 1983-10-18 Nippon Gakki Seizo Kabushiki Kaisha Electro-acoustic transducer
US4471173A (en) * 1982-03-01 1984-09-11 Magnepan, Inc. Piston-diaphragm speaker
JPS619098A (en) * 1984-06-25 1986-01-16 Hitachi Ltd Speaker
US4969197A (en) * 1988-06-10 1990-11-06 Murata Manufacturing Piezoelectric speaker
DE4343324A1 (en) * 1993-12-18 1995-06-22 Nokia Deutschland Gmbh Suspension for cone speakers
EA002108B1 (en) * 1995-09-02 2001-12-24 Нью Трэнсдьюсерз Лимитед Loudspeaker comprising panel-form acoustic radiating elements
US6044925A (en) * 1998-11-30 2000-04-04 Sahyoun; Joseph Yaacoub Passive speaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1003608A (en) * 1962-01-15 1965-09-08 Akg Akustische Kino Geraete Improvements in or relating to diaphragms for loudspeakers
DE2112516B1 (en) * 1971-03-16 1972-10-19 Kurtze Guenther Dipl Phys Prof Directional loudspeaker
JPS56112197A (en) * 1980-02-12 1981-09-04 Pioneer Electronic Corp Flat diaphragm for speaker
JPS5767398A (en) * 1980-10-15 1982-04-23 Sony Corp Dynamic speaker

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0051, no. 86 (E - 084) 25 November 1981 (1981-11-25) *
PATENT ABSTRACTS OF JAPAN vol. 0061, no. 44 (E - 122) 3 August 1982 (1982-08-03) *

Also Published As

Publication number Publication date
EP0924960B1 (en) 2009-11-25
JPH11252684A (en) 1999-09-17
DE19757098A1 (en) 1999-06-24
US6160898A (en) 2000-12-12
EP0924960A2 (en) 1999-06-23
DE59814416D1 (en) 2010-01-07
DE19757098C2 (en) 2003-01-09

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