JPS6217439B2 - - Google Patents

Info

Publication number
JPS6217439B2
JPS6217439B2 JP20545481A JP20545481A JPS6217439B2 JP S6217439 B2 JPS6217439 B2 JP S6217439B2 JP 20545481 A JP20545481 A JP 20545481A JP 20545481 A JP20545481 A JP 20545481A JP S6217439 B2 JPS6217439 B2 JP S6217439B2
Authority
JP
Japan
Prior art keywords
magnetic
voice coil
magnetic fluid
diaphragm
speaker
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.)
Expired
Application number
JP20545481A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58106996A (ja
Inventor
Shinichi Ooki
Kyoshi Yamagishi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56205454A priority Critical patent/JPS58106996A/ja
Publication of JPS58106996A publication Critical patent/JPS58106996A/ja
Publication of JPS6217439B2 publication Critical patent/JPS6217439B2/ja
Granted 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
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H04R9/027—Air gaps using a magnetic fluid

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
JP56205454A 1981-12-18 1981-12-18 スピ−カ Granted JPS58106996A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56205454A JPS58106996A (ja) 1981-12-18 1981-12-18 スピ−カ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56205454A JPS58106996A (ja) 1981-12-18 1981-12-18 スピ−カ

Publications (2)

Publication Number Publication Date
JPS58106996A JPS58106996A (ja) 1983-06-25
JPS6217439B2 true JPS6217439B2 (enExample) 1987-04-17

Family

ID=16507142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56205454A Granted JPS58106996A (ja) 1981-12-18 1981-12-18 スピ−カ

Country Status (1)

Country Link
JP (1) JPS58106996A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04201745A (ja) * 1990-11-30 1992-07-22 Oki Electric Ind Co Ltd 自動車用パワーシート

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61245796A (ja) * 1985-04-24 1986-11-01 Pioneer Electronic Corp スピ−カ用センタ−キヤツプ
WO2006013966A1 (ja) * 2004-08-06 2006-02-09 Ferrotec Corporation 磁性流体が充填されたスピーカ
JP2019033482A (ja) * 2017-08-08 2019-02-28 パナソニックＩｐマネジメント株式会社 スピーカおよび音響装置
WO2019031353A1 (ja) * 2017-08-08 2019-02-14 パナソニックＩｐマネジメント株式会社 スピーカおよび音響装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04201745A (ja) * 1990-11-30 1992-07-22 Oki Electric Ind Co Ltd 自動車用パワーシート

Also Published As

Publication number Publication date
JPS58106996A (ja) 1983-06-25

Similar Documents

Publication Publication Date Title
US5461677A (en) Loudspeaker
JPS6217439B2 (enExample)
US4303806A (en) Dynamic electroacoustic transducer having a moving coil in an air gap filled with a magnetic liquid
CA1058315A (en) Loudspeaker voice coil arrangement
US4088847A (en) Speaker voice coil construction
US2153357A (en) Acoustic damping material
US4115667A (en) Loudspeaker voice coil bearing
WO1996013960A1 (en) Electrodynamic loudspeaker with fluid-supported moving system
US4188711A (en) Method of making broad band dynamic loudspeaker
JP2000059888A (ja) スピーカ
US20110044490A1 (en) Edge for Speaker
JPH08205285A (ja) スピーカ
JP2003274485A (ja) スピーカー製造方法及びスピーカー
US2926741A (en) Speaker
JPS5831157B2 (ja) スピ−カ
US2037165A (en) Vibration translating device
JPS6336792Y2 (enExample)
US3747204A (en) Method for making an acoustic transducer
JPS5838711Y2 (ja) スピ−カ
JPH02174500A (ja) スピーカ用ボイスコイルボビン
US2107920A (en) Apparatus for reproducing sound
JPS5937637B2 (ja) 動電型スピ−カ
CN218634274U (zh) 一种具有降低失真功能的音圈
JP5586629B2 (ja) 可動部装置と、そのような可動部装置を備えた電気機械変換器
JP3874928B2 (ja) ダイナミックマイクロホン