WO2008084546A1 - 電気音響変換器 - Google Patents

電気音響変換器 Download PDF

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Publication number
WO2008084546A1
WO2008084546A1 PCT/JP2007/050274 JP2007050274W WO2008084546A1 WO 2008084546 A1 WO2008084546 A1 WO 2008084546A1 JP 2007050274 W JP2007050274 W JP 2007050274W WO 2008084546 A1 WO2008084546 A1 WO 2008084546A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
magnet
magnetized
vibratory plate
plate
Prior art date
Application number
PCT/JP2007/050274
Other languages
English (en)
French (fr)
Inventor
Akito Hanada
Original Assignee
Akito Hanada
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 Akito Hanada filed Critical Akito Hanada
Priority to PCT/JP2007/050274 priority Critical patent/WO2008084546A1/ja
Priority to PCT/JP2008/050102 priority patent/WO2008084796A1/ja
Priority to JP2008553097A priority patent/JP4810576B2/ja
Priority to CN2008800014670A priority patent/CN101578889B/zh
Priority to US12/522,986 priority patent/US8064631B2/en
Publication of WO2008084546A1 publication Critical patent/WO2008084546A1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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
    • H04R9/06—Loudspeakers
    • 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
    • H04R9/08—Microphones

Landscapes

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

Abstract

　磁石として特別な形状や加工が不要で、磁化方向を細かく設定する必要がなく、半径方向磁化の磁石板のように製作工程が極めて簡素であるにも関わらず、半径方向磁化の磁石板よりも音響振動板の導電体に対して高い有効作用磁束密度の分布を設定した電気信号から音への変換、或いは、音から電気信号への変換を効率良く行える電気音響変換器の提供。 　磁石板の各部分領域の磁化方向において、音響振動板の振動面と平行な成分が音響振動板の中心に向かう半径方向となるように磁化された基本領域磁石に加え、基本領域磁石の中心側となる位置で音響振動板の中心軸と平行な成分が音響振動板の前方方向となるように磁化された中心領域磁石、又は基本領域磁石の外周側となる位置で音響振動板の中心軸と平行な成分が音響振動板の後方方向となるように磁化された外周領域磁石の少なくともいずれか一方を備えている。
PCT/JP2007/050274 2007-01-11 2007-01-11 電気音響変換器 WO2008084546A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/JP2007/050274 WO2008084546A1 (ja) 2007-01-11 2007-01-11 電気音響変換器
PCT/JP2008/050102 WO2008084796A1 (ja) 2007-01-11 2008-01-09 電気音響変換器
JP2008553097A JP4810576B2 (ja) 2007-01-11 2008-01-09 電気音響変換器
CN2008800014670A CN101578889B (zh) 2007-01-11 2008-01-09 电声变换器
US12/522,986 US8064631B2 (en) 2007-01-11 2008-01-09 Electroacoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/050274 WO2008084546A1 (ja) 2007-01-11 2007-01-11 電気音響変換器

Publications (1)

Publication Number Publication Date
WO2008084546A1 true WO2008084546A1 (ja) 2008-07-17

Family

ID=39608449

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP2007/050274 WO2008084546A1 (ja) 2007-01-11 2007-01-11 電気音響変換器
PCT/JP2008/050102 WO2008084796A1 (ja) 2007-01-11 2008-01-09 電気音響変換器

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050102 WO2008084796A1 (ja) 2007-01-11 2008-01-09 電気音響変換器

Country Status (3)

Country Link
US (1) US8064631B2 (ja)
CN (1) CN101578889B (ja)
WO (2) WO2008084546A1 (ja)

Families Citing this family (27)

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Publication number Priority date Publication date Assignee Title
US8693720B2 (en) 2006-08-31 2014-04-08 Red Tail Hawk Corporation Wireless earplug with improved sensitivity and form factor
US9525930B2 (en) 2006-08-31 2016-12-20 Red Tail Hawk Corporation Magnetic field antenna
US8688036B2 (en) 2006-08-31 2014-04-01 Red Tail Hawk Corporation Wireless communications headset system employing a loop transmitter that fits around the pinna
JP5083098B2 (ja) * 2008-07-30 2012-11-28 株式会社Ｊｖｃケンウッド スピーカ用フレーム及びスピーカユニット
JP2010087623A (ja) * 2008-09-29 2010-04-15 Sony Corp ドライブユニット製造方法及びドライブユニット
JP5085763B2 (ja) * 2011-04-27 2012-11-28 株式会社東芝 音信号処理装置、及び音信号処理方法
KR101208243B1 (ko) * 2011-04-28 2012-12-04 주식회사 비에스이 박형 스피커 및 이를 위한 자기회로
US8718317B2 (en) * 2011-05-19 2014-05-06 Zonghan Wu Moving-magnet electromagnetic device with planar coil
US8983112B2 (en) 2012-03-14 2015-03-17 Harman International Industries, Incorporated Planar speaker system
US8948441B2 (en) * 2012-03-14 2015-02-03 Harman International Industries, Inc. Planar speaker system
US9083388B2 (en) 2012-08-29 2015-07-14 Red Tail Hawk Corporation Transmitter with improved sensitivity and shielding
CN203378015U (zh) * 2012-12-13 2014-01-01 捷音特科技股份有限公司 双频同轴耳机
US9197965B2 (en) 2013-03-15 2015-11-24 James J. Croft, III Planar-magnetic transducer with improved electro-magnetic circuit
US9565498B2 (en) * 2013-12-06 2017-02-07 Jens Waale Audio driver and method for transforming an electrical signal into air movement
CN104469629A (zh) * 2014-10-22 2015-03-25 蔡旭钦 平面音圈扬声器及平面音圈扬声器模块
CN104811876A (zh) * 2015-04-29 2015-07-29 朝阳聚声泰（信丰）科技有限公司 一种高保真扬声器
US10560778B2 (en) * 2015-09-29 2020-02-11 Coleridge Design Associates Llc System and method for a loudspeaker with a diaphragm
JP6771299B2 (ja) * 2016-04-11 2020-10-21 株式会社デンソーテン スピーカユニット
CN105959884B (zh) * 2016-05-24 2019-01-11 深圳市优塔晟世科技有限公司 平面振膜复合伺服式扬声器系统及其控制方法
WO2018196147A1 (zh) * 2017-04-26 2018-11-01 华为技术有限公司 一种喇叭组件、电子设备以及在电子设备中安装喇叭组件的方法
CN107404692B (zh) * 2017-08-04 2023-08-01 奥音科技（镇江）有限公司 一种应用于电声换能器的前盖
CN108600920A (zh) * 2018-01-08 2018-09-28 深圳市韶音科技有限公司 一种骨传导扬声器
CN110278514B9 (zh) * 2018-03-15 2020-11-27 捷音特科技股份有限公司 平面音圈扬声器
CN112237011B (zh) * 2018-06-26 2021-12-10 花田昭人 音圈振动板
CN109246560B (zh) * 2018-08-13 2020-05-22 歌尔股份有限公司 发声装置
KR102668395B1 (ko) 2019-03-15 2024-05-23 삼성디스플레이 주식회사 표시 장치
CN117459868B (zh) * 2023-12-11 2024-02-23 瑞声光电科技(常州)有限公司 麦克风芯片、微机电麦克风及终端设备

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3612319B2 (ja) * 2001-03-09 2005-01-19 昭人 花田 電気音響変換器

Family Cites Families (3)

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US4315112A (en) * 1979-12-12 1982-02-09 Alan Hofer Speaker
JPS6093397U (ja) 1983-11-30 1985-06-26 ナイルス部品株式会社 電気音響変換器
US5425107A (en) * 1992-04-09 1995-06-13 Bertagni Electronic Sound Transducers, International Corporation Planar-type loudspeaker with dual density diaphragm

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3612319B2 (ja) * 2001-03-09 2005-01-19 昭人 花田 電気音響変換器

Also Published As

Publication number Publication date
US20100278371A1 (en) 2010-11-04
WO2008084796A1 (ja) 2008-07-17
CN101578889A (zh) 2009-11-11
US8064631B2 (en) 2011-11-22
CN101578889B (zh) 2012-10-17

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