ATE530030T1 - ELECTRODYNAMIC DRIVER - Google Patents

ELECTRODYNAMIC DRIVER

Info

Publication number
ATE530030T1
ATE530030T1 AT00118512T AT00118512T ATE530030T1 AT E530030 T1 ATE530030 T1 AT E530030T1 AT 00118512 T AT00118512 T AT 00118512T AT 00118512 T AT00118512 T AT 00118512T AT E530030 T1 ATE530030 T1 AT E530030T1
Authority
AT
Austria
Prior art keywords
diaphragm
cavity
magnet system
coil
driver
Prior art date
Application number
AT00118512T
Other languages
German (de)
Inventor
Wolfgang Bachmann
Gerhard Krump
Hans-Juergen Regl
Andreas Ziganki
Original Assignee
Harman Becker Automotive Sys
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 Sys filed Critical Harman Becker Automotive Sys
Application granted granted Critical
Publication of ATE530030T1 publication Critical patent/ATE530030T1/en

Links

Classifications

    • 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
    • H04R9/066—Loudspeakers using the principle of inertia
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electric Cable Installation (AREA)

Abstract

The driver has a moving coil (8) on a tubular coil holder (8a), with a magnet system (4,5,6) arranged concentric to the coil. An adaptor (9) is provided for attaching the coil holder to the diaphragm (12). An elastic element (2,7) is arranged between the diaphragm and the magnet system. A cavity (10,11,15,17) is formed between the diaphragm and the magnet system. An element (7) made of air permeable material is provided for equalising the pressure of the cavity. A pressure equalising channel (24,16) may be provided from the cavity to the outside air.
AT00118512T 1999-08-27 2000-08-25 ELECTRODYNAMIC DRIVER ATE530030T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19940930A DE19940930A1 (en) 1999-08-27 1999-08-27 Electrodynamic driver

Publications (1)

Publication Number Publication Date
ATE530030T1 true ATE530030T1 (en) 2011-11-15

Family

ID=7919954

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00118512T ATE530030T1 (en) 1999-08-27 2000-08-25 ELECTRODYNAMIC DRIVER

Country Status (3)

Country Link
EP (1) EP1079664B1 (en)
AT (1) ATE530030T1 (en)
DE (1) DE19940930A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50115744D1 (en) 2001-07-13 2011-01-27 Harman Becker Automotive Sys PANEL SPEAKER
US8724844B2 (en) * 2010-06-07 2014-05-13 Robert Katz Heat dissipating acoustic transducer with mounting means
US9820038B2 (en) * 2013-09-30 2017-11-14 Apple Inc. Waterproof speaker module
JP6146289B2 (en) 2013-12-11 2017-06-14 ヤマハ株式会社 Exciter mounting structure
US9226076B2 (en) 2014-04-30 2015-12-29 Apple Inc. Evacuation of liquid from acoustic space
US10209123B2 (en) 2016-08-24 2019-02-19 Apple Inc. Liquid detection for an acoustic module
CN109348375A (en) * 2018-11-29 2019-02-15 深圳倍声声学技术有限公司 A moving iron speaker and earphones

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354067A (en) * 1978-05-17 1982-10-12 Bodysonic Kabushiki Kaisha Audio-band electromechanical vibration converter
WO1981001492A1 (en) * 1979-11-09 1981-05-28 Matsushita Electric Industrial Co Ltd Speaker and speaker system
DE3923189A1 (en) * 1989-07-13 1991-01-24 Atl Elektro Akustik Vertriebs Bass loudspeaker leaving large area of diaphragm free to vibrate - separates flexible connected profile
EP0574387A1 (en) * 1990-10-09 1993-12-22 Stage Ac-Company B.V. Electrodynamic loudspeaker with cooling arrangement
DE4421418A1 (en) * 1994-06-01 1995-12-07 Nokia Deutschland Gmbh Centering membrane
US5497428A (en) * 1994-11-01 1996-03-05 Rojas; Omar E. Self-cooled magnetic structure for loudspeakers
US5909015A (en) * 1998-03-26 1999-06-01 Yamamoto; Shuji Self-cooled loudspeaker

Also Published As

Publication number Publication date
DE19940930A1 (en) 2001-03-29
EP1079664A2 (en) 2001-02-28
EP1079664B1 (en) 2011-10-19
EP1079664A3 (en) 2007-03-07

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