WO2003015462A3 - Loudspeaker with a three-dimensional diaphragm - Google Patents

Loudspeaker with a three-dimensional diaphragm Download PDF

Info

Publication number
WO2003015462A3
WO2003015462A3 PCT/IB2002/003203 IB0203203W WO03015462A3 WO 2003015462 A3 WO2003015462 A3 WO 2003015462A3 IB 0203203 W IB0203203 W IB 0203203W WO 03015462 A3 WO03015462 A3 WO 03015462A3
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
chassis
actuator
connecting means
loudspeaker
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.)
Ceased
Application number
PCT/IB2002/003203
Other languages
French (fr)
Other versions
WO2003015462A2 (en
Inventor
Hoogh Guido O M D
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to JP2003520236A priority Critical patent/JP2004538733A/en
Priority to EP02751566A priority patent/EP1419673A2/en
Publication of WO2003015462A2 publication Critical patent/WO2003015462A2/en
Publication of WO2003015462A3 publication Critical patent/WO2003015462A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

An electrodynamic loudspeaker comprising a chassis (2), a three-dimensional diaphragm (8) and an electromagnetic actuator (6). The diaphragm is connected to the chassis by a first flexible connecting means (18) provided near a front part (8a) of the diaphragm and by a second flexible connecting means (20) provided near a back part (8b) of the diaphragm. The actuator includes a stationary actuator element (6a) fixed to the chassis and a translatable actuator element (6b) fixed to the diaphragm. When energized, both actuator elements magnetically co-operate with one another over an air gap (16). In order to realize a flat but powerful speaker, the device as such and the air gap are outside the area (26) enclosed by the diaphragm but within the space (24) between both connecting means.
PCT/IB2002/003203 2001-08-10 2002-07-29 Loudspeaker with a three-dimensional diaphragm Ceased WO2003015462A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003520236A JP2004538733A (en) 2001-08-10 2002-07-29 Speaker with three-dimensional diaphragm
EP02751566A EP1419673A2 (en) 2001-08-10 2002-07-29 Loudspeaker with a three-dimensional diaphragm

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01203057 2001-08-10
EP01203057.3 2001-08-10

Publications (2)

Publication Number Publication Date
WO2003015462A2 WO2003015462A2 (en) 2003-02-20
WO2003015462A3 true WO2003015462A3 (en) 2003-09-25

Family

ID=8180784

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/003203 Ceased WO2003015462A2 (en) 2001-08-10 2002-07-29 Loudspeaker with a three-dimensional diaphragm

Country Status (5)

Country Link
US (1) US6819773B2 (en)
EP (1) EP1419673A2 (en)
JP (1) JP2004538733A (en)
CN (1) CN100423612C (en)
WO (1) WO2003015462A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7548632B2 (en) * 2004-03-31 2009-06-16 Panasonic Corporation Speaker, module using the same, electronic equipment and device, and speaker producing method
EP1737269B1 (en) 2005-06-21 2012-10-10 Harman International Industries Ltd. Shallow loudspeaker
US20090316949A1 (en) * 2005-09-15 2009-12-24 Pss Belgium N.V. Electrodynamic loudspeaker device
US8170268B2 (en) * 2007-11-30 2012-05-01 Bang & Olufsen Icepower A/S Gi Electro-dynamic transducer with a slim form factor
US8682022B2 (en) * 2008-10-24 2014-03-25 Jason Myles Cobb Loudspeaker
US8290199B2 (en) * 2009-05-21 2012-10-16 Bose Corporation Loudspeaker suspension
EP2373056B1 (en) * 2010-03-12 2013-05-15 Harman International Industries Ltd. Loudspeaker of an inverted motor design and corresponding assembly method
US8442259B2 (en) * 2010-06-04 2013-05-14 Beats Electronics, Llc System for vibration confinement
CN102271301B (en) * 2011-06-29 2014-02-12 陈奚平 a speaker
KR102140357B1 (en) 2013-05-30 2020-07-31 슈어 애쿼지션 홀딩스, 인코포레이티드 Stabilizer for microphone diaphragm
CN106303850A (en) * 2015-05-29 2017-01-04 宋行智 Reduce the speaker of vibration wave of vibration film
BR112019000157B1 (en) * 2016-07-05 2021-09-21 National University Corporation Kanazawa University ACTIVE NOISE VIBRATION CONTROL APPARATUS AND METHOD TO MANUFACTURE THE SAME
EP4342738A3 (en) * 2018-09-25 2024-05-29 AGC Glass Europe An interior component of a vehicle
US12069459B2 (en) * 2020-10-19 2024-08-20 Harman International Industries, Incorporated Loudspeaker assembly with a separate voice coil assembly
CN117041831A (en) * 2023-08-03 2023-11-10 东莞市龙韵强电声有限公司 An ultra-thin speaker unit with a centering support piece placed in the middle of the magnetic circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999066763A1 (en) * 1998-06-16 1999-12-23 Koninklijke Philips Electronics N.V. Device having two coaxially disposed bodies which are movable relative to one another along a translation axis

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239943A (en) * 1977-11-17 1980-12-16 Cerwin Vega, Inc. Adjustable dual spider for a loudspeaker
US5625701A (en) * 1993-08-05 1997-04-29 Bose Corporation Loudspeaker diaphragm attaching
JP3233004B2 (en) * 1996-02-29 2001-11-26 松下電器産業株式会社 Speaker unit
DE19618898A1 (en) 1996-05-10 1997-11-13 Nokia Deutschland Gmbh speaker
KR100445212B1 (en) * 1996-05-31 2004-12-03 코닌클리케 필립스 일렉트로닉스 엔.브이. Electromechanical loudspeakers and loudspeaker systems
US5734132A (en) * 1996-07-19 1998-03-31 Proni; Lucio Concentric tube suspension system for loudspeakers
US6526151B1 (en) * 2000-06-29 2003-02-25 Meiloon Industrial Co., Ltd. High stability loudspeaker

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999066763A1 (en) * 1998-06-16 1999-12-23 Koninklijke Philips Electronics N.V. Device having two coaxially disposed bodies which are movable relative to one another along a translation axis

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1419673A2 *

Also Published As

Publication number Publication date
US20030031337A1 (en) 2003-02-13
US6819773B2 (en) 2004-11-16
EP1419673A2 (en) 2004-05-19
CN1545821A (en) 2004-11-10
WO2003015462A2 (en) 2003-02-20
CN100423612C (en) 2008-10-01
JP2004538733A (en) 2004-12-24

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