EP1174002A2 - Moving coil driver - Google Patents

Moving coil driver

Info

Publication number
EP1174002A2
EP1174002A2 EP00925465A EP00925465A EP1174002A2 EP 1174002 A2 EP1174002 A2 EP 1174002A2 EP 00925465 A EP00925465 A EP 00925465A EP 00925465 A EP00925465 A EP 00925465A EP 1174002 A2 EP1174002 A2 EP 1174002A2
Authority
EP
European Patent Office
Prior art keywords
coils
coil
pair
driver according
spacing
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
EP00925465A
Other languages
German (de)
English (en)
French (fr)
Inventor
Graham Bank
Martin Roberts
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.)
NVF Tech Ltd
Original Assignee
New Transducers Ltd
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 Ltd filed Critical New Transducers Ltd
Publication of EP1174002A2 publication Critical patent/EP1174002A2/en
Ceased 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
    • H04R9/02—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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP00925465A 1999-04-29 2000-04-28 Moving coil driver Ceased EP1174002A2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9910217.0A GB9910217D0 (en) 1999-04-29 1999-04-29 Moving coil driver
GB9910217 1999-04-29
GB9916837 1999-07-20
GBGB9916837.9A GB9916837D0 (en) 1999-07-20 1999-07-20 Moving coil driver
PCT/GB2000/001484 WO2000067523A2 (en) 1999-04-29 2000-04-28 Moving coil driver

Publications (1)

Publication Number Publication Date
EP1174002A2 true EP1174002A2 (en) 2002-01-23

Family

ID=26315502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00925465A Ceased EP1174002A2 (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)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6671385B2 (en) * 2000-08-24 2003-12-30 Matsushita Electric Industrial Co., Ltd. Speaker and magnetic circuit used for the speaker
WO2007103937A2 (en) 2006-03-06 2007-09-13 General Innovations, Inc. Positionally sequenced loudspeaker system
EA201170576A1 (ru) 2007-10-13 2011-12-30 Шэньчжэнь Нью Электрик Сайенс Энд Текнолоджи Ко., Лтд. Мультимедийная звуковая система со звукочастотным цифровым интерфейсом
US9277325B2 (en) 2008-02-21 2016-03-01 Fan Zhang Inner magnetic transducer with multiple magnetic gaps and multiple coils and preparation method thereof
CN102892063B (zh) * 2011-07-21 2018-05-01 张凡 具有对称磁路及对称线圈电路的多驱动器换能器
JP6224324B2 (ja) * 2012-07-06 2017-11-01 ハーマン ベッカー ゲープコチレンジャー ジーアルト コールライトルト フェレルーシェグ タイヤーシャーシャイグ 音響変換器アセンブリ
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
NL2017514B1 (en) * 2016-09-22 2018-03-29 Univ Delft Tech Loudspeaker unit with multiple drive units
US11290823B2 (en) 2018-04-11 2022-03-29 Dali A/S Double voice coil loudspeaker transducer unit
US11466698B2 (en) * 2018-07-30 2022-10-11 Danfoss A/S Electromechanical actuators for refrigerant flow control
US11341948B2 (en) 2019-07-17 2022-05-24 Sound Solutions International Co., Ltd. Electromagnetic actuator with improved spring arrangement
CN113727257B (zh) 2020-05-20 2024-01-30 奥音科技（镇江）有限公司 电动激励器、扬声器、电动换能器和输出设备
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

Family Cites Families (6)

* 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
JPS6175696U (zh) * 1984-10-23 1986-05-21
DE4041858A1 (de) * 1990-12-24 1992-07-02 Nokia Unterhaltungselektronik Antriebssystem fuer langhubige tieftonlautsprecher
JP3161677B2 (ja) * 1995-02-17 2001-04-25 アルパイン株式会社 スピーカ
UA51671C2 (uk) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Акустичний пристрій
DE19729082A1 (de) * 1997-07-08 1999-01-14 Nokia Deutschland Gmbh Abgeschirmtes Magnetsystem

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0067523A3 *

Also Published As

Publication number Publication date
CN1347628A (zh) 2002-05-01
AU4419000A (en) 2000-11-17
WO2000067523A3 (en) 2001-02-08
WO2000067523A2 (en) 2000-11-09
JP2002543726A (ja) 2002-12-17
TW478287B (en) 2002-03-01

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