WO2000067523A2 - Moving coil driver - Google Patents

Moving coil driver Download PDF

Info

Publication number
WO2000067523A2
WO2000067523A2 PCT/GB2000/001484 GB0001484W WO0067523A2 WO 2000067523 A2 WO2000067523 A2 WO 2000067523A2 GB 0001484 W GB0001484 W GB 0001484W WO 0067523 A2 WO0067523 A2 WO 0067523A2
Authority
WO
WIPO (PCT)
Prior art keywords
coils
coil
pair
driver according
spacing
Prior art date
Application number
PCT/GB2000/001484
Other languages
English (en)
French (fr)
Other versions
WO2000067523A3 (en
Inventor
Graham Bank
Martin Roberts
Original Assignee
New Transducers Limited
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
Priority claimed from GBGB9910217.0A external-priority patent/GB9910217D0/en
Priority claimed from GBGB9916837.9A external-priority patent/GB9916837D0/en
Application filed by New Transducers Limited filed Critical New Transducers Limited
Priority to JP2000614774A priority Critical patent/JP2002543726A/ja
Priority to AU44190/00A priority patent/AU4419000A/en
Priority to EP00925465A priority patent/EP1174002A2/en
Publication of WO2000067523A2 publication Critical patent/WO2000067523A2/en
Publication of WO2000067523A3 publication Critical patent/WO2000067523A3/en

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
    • H04R9/02—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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • 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
    • H04R2209/041—Voice coil arrangements comprising more than one voice coil unit on the same bobbin
PCT/GB2000/001484 1999-04-29 2000-04-28 Moving coil driver WO2000067523A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000614774A JP2002543726A (ja) 1999-04-29 2000-04-28 可動コイル駆動装置
AU44190/00A AU4419000A (en) 1999-04-29 2000-04-28 Moving coil driver
EP00925465A EP1174002A2 (en) 1999-04-29 2000-04-28 Moving coil driver

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9910217.0A GB9910217D0 (en) 1999-04-29 1999-04-29 Moving coil driver
GB9916837.9 1999-07-20
GB9910217.0 1999-07-20
GBGB9916837.9A GB9916837D0 (en) 1999-07-20 1999-07-20 Moving coil driver

Publications (2)

Publication Number Publication Date
WO2000067523A2 true WO2000067523A2 (en) 2000-11-09
WO2000067523A3 WO2000067523A3 (en) 2001-02-08

Family

ID=26315502

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/001484 WO2000067523A2 (en) 1999-04-29 2000-04-28 Moving coil driver

Country Status (6)

Country Link
EP (1) EP1174002A2 (zh)
JP (1) JP2002543726A (zh)
CN (1) CN1347628A (zh)
AU (1) AU4419000A (zh)
TW (1) TW478287B (zh)
WO (1) WO2000067523A2 (zh)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1227701A1 (en) * 2000-08-24 2002-07-31 Matsushita Electric Industrial Co., Ltd. Speaker and magnetic circuit used for the speaker
US8284982B2 (en) 2006-03-06 2012-10-09 Induction Speaker Technology, Llc Positionally sequenced loudspeaker system
US20150271605A1 (en) * 2011-07-21 2015-09-24 Fan Zhang Multi-driver transducer having symmetrical magnetic circuit and symmetrical coil circuit
NL2017514B1 (en) * 2016-09-22 2018-03-29 Univ Delft Tech Loudspeaker unit with multiple drive units
US9936299B2 (en) 2012-07-06 2018-04-03 Harman Becker Gepkocsirendszer Gyarto Korlatolt Felelossegu Tarsasag Acoustic transducer assembly
WO2019197001A1 (en) * 2018-04-11 2019-10-17 Dali A/S Double voice coil loudspeaker transducer unit
EP2400784A4 (en) * 2008-02-21 2020-11-18 Shenzhen New Electric Science and Technology Co., Ltd INTERNAL MAGNETIC TRANSDUCER INCLUDING MULTIPLE MAGNETIC GAPS AND MULTIPLE COILS AND PROCESS FOR THE PREPARATION OF THE LATTER
US11341948B2 (en) 2019-07-17 2022-05-24 Sound Solutions International Co., Ltd. Electromagnetic actuator with improved spring arrangement
US11678123B2 (en) 2020-05-20 2023-06-13 Sound Solutions International Co., Ltd. Electromagnetic actuator for a speaker or a sound transducer with a high-strength metal connection between the voice coil and the magnet system
US11838736B2 (en) 2020-05-20 2023-12-05 Sound Solutions International Co., Ltd. Electromagnetic actuator for a speaker or a sound transducer with a multimetal layer connection between the voice coil and the magnet system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA201170576A1 (ru) 2007-10-13 2011-12-30 Шэньчжэнь Нью Электрик Сайенс Энд Текнолоджи Ко., Лтд. Мультимедийная звуковая система со звукочастотным цифровым интерфейсом
JP2015522230A (ja) * 2012-07-20 2015-08-03 ファン チャン 対称的に配置する磁気回路並びにコイル回路を備えるマルチ駆動器変換器
CN104301847B (zh) * 2014-11-03 2017-11-28 常州阿木奇声学科技有限公司 一种减小低频失真的动铁单元磁力驱动机构
US11466698B2 (en) * 2018-07-30 2022-10-11 Danfoss A/S Electromechanical actuators for refrigerant flow control

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783824A (en) * 1984-10-23 1988-11-08 Trio Kabushiki Kaisha Speaker unit having two voice coils wound around a common coil bobbin
EP0492142A2 (de) * 1990-12-24 1992-07-01 Nokia (Deutschland) GmbH Antriebssystem für langhubige Tieftonlautsprecher
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
DE19729082A1 (de) * 1997-07-08 1999-01-14 Nokia Deutschland Gmbh Abgeschirmtes Magnetsystem

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59192000A (ja) * 1983-04-15 1984-10-31 Hitachi Ltd スピ−カ装置
JP3161677B2 (ja) * 1995-02-17 2001-04-25 アルパイン株式会社 スピーカ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783824A (en) * 1984-10-23 1988-11-08 Trio Kabushiki Kaisha Speaker unit having two voice coils wound around a common coil bobbin
EP0492142A2 (de) * 1990-12-24 1992-07-01 Nokia (Deutschland) GmbH Antriebssystem für langhubige Tieftonlautsprecher
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
DE19729082A1 (de) * 1997-07-08 1999-01-14 Nokia Deutschland Gmbh Abgeschirmtes Magnetsystem

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 053 (E-301), 7 March 1985 (1985-03-07) & JP 59 192000 A (HITACHI SEISAKUSHO KK), 31 October 1984 (1984-10-31) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 12, 26 December 1996 (1996-12-26) & JP 08 223688 A (ALPINE ELECTRON INC), 30 August 1996 (1996-08-30) -& US 5 909 499 A (TANABE KEI) 1 June 1999 (1999-06-01) *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1227701A4 (en) * 2000-08-24 2005-12-07 Matsushita Electric Ind Co Ltd SPEAKER AND MAGNETIC CIRCUIT FOR USE FOR THE SPEAKER
EP1227701A1 (en) * 2000-08-24 2002-07-31 Matsushita Electric Industrial Co., Ltd. Speaker and magnetic circuit used for the speaker
US8284982B2 (en) 2006-03-06 2012-10-09 Induction Speaker Technology, Llc Positionally sequenced loudspeaker system
EP2400784A4 (en) * 2008-02-21 2020-11-18 Shenzhen New Electric Science and Technology Co., Ltd INTERNAL MAGNETIC TRANSDUCER INCLUDING MULTIPLE MAGNETIC GAPS AND MULTIPLE COILS AND PROCESS FOR THE PREPARATION OF THE LATTER
US20150271605A1 (en) * 2011-07-21 2015-09-24 Fan Zhang Multi-driver transducer having symmetrical magnetic circuit and symmetrical coil circuit
US9774957B2 (en) * 2011-07-21 2017-09-26 Fan Zhang Multi-driver transducer having symmetrical magnetic circuit and symmetrical coil circuit
US9936299B2 (en) 2012-07-06 2018-04-03 Harman Becker Gepkocsirendszer Gyarto Korlatolt Felelossegu Tarsasag Acoustic transducer assembly
US10893367B2 (en) 2016-09-22 2021-01-12 Mayht Holding B.V. Loudspeaker unit with multiple drive units
NL2017514B1 (en) * 2016-09-22 2018-03-29 Univ Delft Tech Loudspeaker unit with multiple drive units
WO2018056814A1 (en) * 2016-09-22 2018-03-29 Technische Universiteit Delft Loudspeaker unit with multiple drive units
WO2019197001A1 (en) * 2018-04-11 2019-10-17 Dali A/S Double voice coil loudspeaker transducer unit
CN112585996A (zh) * 2018-04-11 2021-03-30 达利有限责任公司 双音圈扬声器变换器单元
US11290823B2 (en) 2018-04-11 2022-03-29 Dali A/S Double voice coil loudspeaker transducer unit
US11341948B2 (en) 2019-07-17 2022-05-24 Sound Solutions International Co., Ltd. Electromagnetic actuator with improved spring arrangement
US11948549B2 (en) 2019-07-17 2024-04-02 Sound Solutions International Co., Ltd. Electromagnetic actuator for a display with improved spring arrangement and output device with said actuator
US11678123B2 (en) 2020-05-20 2023-06-13 Sound Solutions International Co., Ltd. Electromagnetic actuator for a speaker or a sound transducer with a high-strength metal connection between the voice coil and the magnet system
US11838736B2 (en) 2020-05-20 2023-12-05 Sound Solutions International Co., Ltd. Electromagnetic actuator for a speaker or a sound transducer with a multimetal layer connection between the voice coil and the magnet system

Also Published As

Publication number Publication date
EP1174002A2 (en) 2002-01-23
CN1347628A (zh) 2002-05-01
AU4419000A (en) 2000-11-17
WO2000067523A3 (en) 2001-02-08
JP2002543726A (ja) 2002-12-17
TW478287B (en) 2002-03-01

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