WO2009054118A1 - 電磁変換器 - Google Patents

電磁変換器 Download PDF

Info

Publication number
WO2009054118A1
WO2009054118A1 PCT/JP2008/002968 JP2008002968W WO2009054118A1 WO 2009054118 A1 WO2009054118 A1 WO 2009054118A1 JP 2008002968 W JP2008002968 W JP 2008002968W WO 2009054118 A1 WO2009054118 A1 WO 2009054118A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnets
layers
magnetic poles
rodlike
poles face
Prior art date
Application number
PCT/JP2008/002968
Other languages
English (en)
French (fr)
Inventor
Shinichi Sakai
Seiki Suzuki
Kanji Shinkawa
Original Assignee
Mitsubishi Electric Engineering Company, 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
Application filed by Mitsubishi Electric Engineering Company, Limited filed Critical Mitsubishi Electric Engineering Company, Limited
Priority to US12/675,929 priority Critical patent/US8222984B2/en
Priority to KR1020107007989A priority patent/KR101123573B1/ko
Priority to CN200880113258.5A priority patent/CN101836464B/zh
Publication of WO2009054118A1 publication Critical patent/WO2009054118A1/ja

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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane

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)
  • Coils Or Transformers For Communication (AREA)

Abstract

　それぞれ、幅Ｗｍ、厚さＴｍおよび所定長の棒状永久磁石を、平面上に交互に異なる磁極を対向させて一定の極ピッチτｐ間隔で複数個配列した２つ層を、上下方向に互いに同一磁極を対向させ、かつ距離２×ｌｇを隔てて配置し、上記２つの層のそれぞれ隣り合う棒状永久磁石の間隙部分の中間に、導体パターンのコイルを形成した振動膜を配置し、Ｗｍ、Ｔｍ、τｐ、ｌｇを用いて棒状永久磁石の配置を最適化する。
PCT/JP2008/002968 2007-10-26 2008-10-20 電磁変換器 WO2009054118A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/675,929 US8222984B2 (en) 2007-10-26 2008-10-20 Electromagnetic transducer
KR1020107007989A KR101123573B1 (ko) 2007-10-26 2008-10-20 전자기 변환기
CN200880113258.5A CN101836464B (zh) 2007-10-26 2008-10-20 电磁换能器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-279114 2007-10-26
JP2007279114A JP5084445B2 (ja) 2007-10-26 2007-10-26 電磁変換器

Publications (1)

Publication Number Publication Date
WO2009054118A1 true WO2009054118A1 (ja) 2009-04-30

Family

ID=40579227

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/002968 WO2009054118A1 (ja) 2007-10-26 2008-10-20 電磁変換器

Country Status (6)

Country Link
US (1) US8222984B2 (ja)
JP (1) JP5084445B2 (ja)
KR (1) KR101123573B1 (ja)
CN (1) CN101836464B (ja)
TW (1) TWI386076B (ja)
WO (1) WO2009054118A1 (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5958466B2 (ja) * 2011-07-15 2016-08-02 日立金属株式会社 磁気ギア装置
CN104094368A (zh) * 2012-01-30 2014-10-08 三菱电机株式会社 磁路
US9635465B2 (en) * 2014-10-30 2017-04-25 Sennheiser Electronic Gmbh & Co. Kg Planardynamic transducer
KR101762028B1 (ko) * 2015-11-24 2017-07-26 삼성전기주식회사 코일부품 및 그 제조방법
DE102017122660A1 (de) * 2016-10-04 2018-04-05 Sennheiser Electronic Gmbh & Co. Kg Planardynamischer Wandler
CN107529118A (zh) * 2016-10-15 2017-12-29 张侠辅 琴弦振动式扬声器的改进
WO2018165280A1 (en) 2017-03-07 2018-09-13 Harman International Industries, Incorporated Loudspeaker
CN111819866B (zh) 2018-03-07 2023-02-03 哈曼国际工业有限公司 扬声器
CN109788411B (zh) * 2018-12-17 2020-09-01 海菲曼（天津）科技有限公司 一种电声换能器和动圈平板复合扬声器
CN113262972B (zh) * 2021-05-17 2022-03-11 湖南大学 一种电磁结构及电磁换能器
CN113873405A (zh) * 2021-09-02 2021-12-31 头领科技（昆山）有限公司 一种平板耳机
FR3132403B1 (fr) * 2022-02-02 2023-12-15 D&P Audio Haut-parleur plan isodynamique a bobinages croisés

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668098A (en) * 1979-11-07 1981-06-08 Foster Denki Kk Dynamic plane drive speaker
JPS60187199A (ja) * 1984-02-14 1985-09-24 ウイリアム・リ−・トルグソン ラウドスピ−カ装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3192372B2 (ja) 1996-06-10 2001-07-23 有限会社エイプロインターナショナル 薄型電磁変換器
KR100352859B1 (ko) * 1997-07-09 2002-09-16 에프피에스 인코포레이티드 평면형 음향변환장치
US5901235A (en) * 1997-09-24 1999-05-04 Eminent Technology, Inc. Enhanced efficiency planar transducers
TW526630B (en) * 1998-11-10 2003-04-01 Asml Netherlands Bv Actuator and transducer
JP2000152378A (ja) * 1998-11-10 2000-05-30 Sonic Window Kk 平面型音響変換装置
GB0009492D0 (en) * 2000-04-17 2000-06-07 Fast Technology Gmbh Magnetic transducer element and method of preparation
WO2001091514A1 (en) * 2000-05-22 2001-11-29 Matsushita Electric Industrial Co., Ltd. Electromagnetic transducer and portable communication device
KR20030079956A (ko) * 2001-01-22 2003-10-10 어메리컨 테크놀로지 코포레이션 개선된 단일단부 평면 자기 스피커
US6934402B2 (en) * 2001-01-26 2005-08-23 American Technology Corporation Planar-magnetic speakers with secondary magnetic structure
JP2003179994A (ja) 2001-10-04 2003-06-27 Fps:Kk 平面型音響変換装置用ダイヤフラム、及び平面型音響変換装置
US7190247B2 (en) * 2002-04-01 2007-03-13 Med-El Elektromedizinische Geraete Gmbh System and method for reducing effect of magnetic fields on a magnetic transducer
JP4128999B2 (ja) * 2002-04-25 2008-07-30 ピーエスエス・ベルギー・エヌブイ 駆動ユニット、ラウドスピーカ・アセンブリおよびスピーカユニット
KR100533714B1 (ko) * 2003-12-05 2005-12-05 신정열 폐루프 형상의 코일판을 구비하는 평판스피커
JP2006020135A (ja) * 2004-07-02 2006-01-19 Fujitsu Ten Ltd 振動板駆動ユニット及びこのユニットを用いた薄型スピーカ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668098A (en) * 1979-11-07 1981-06-08 Foster Denki Kk Dynamic plane drive speaker
JPS60187199A (ja) * 1984-02-14 1985-09-24 ウイリアム・リ−・トルグソン ラウドスピ−カ装置

Also Published As

Publication number Publication date
TW200934278A (en) 2009-08-01
KR101123573B1 (ko) 2012-03-12
CN101836464B (zh) 2013-03-27
KR20100055529A (ko) 2010-05-26
TWI386076B (zh) 2013-02-11
JP5084445B2 (ja) 2012-11-28
CN101836464A (zh) 2010-09-15
US8222984B2 (en) 2012-07-17
US20100214047A1 (en) 2010-08-26
JP2009111484A (ja) 2009-05-21

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