JPS5586288A - Electroacoustic converter - Google Patents

Electroacoustic converter

Info

Publication number
JPS5586288A
JPS5586288A JP16249678A JP16249678A JPS5586288A JP S5586288 A JPS5586288 A JP S5586288A JP 16249678 A JP16249678 A JP 16249678A JP 16249678 A JP16249678 A JP 16249678A JP S5586288 A JPS5586288 A JP S5586288A
Authority
JP
Japan
Prior art keywords
fluid
spaces
voice coil
bobbin
input
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.)
Granted
Application number
JP16249678A
Other languages
Japanese (ja)
Other versions
JPS6113679B2 (en
Inventor
Yoshiaki Harada
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 JP16249678A priority Critical patent/JPS5586288A/en
Publication of JPS5586288A publication Critical patent/JPS5586288A/en
Publication of JPS6113679B2 publication Critical patent/JPS6113679B2/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/022—Cooling arrangements

Abstract

PURPOSE:To obtain a high-efficiency speaker with improved resistance to input, by continuously cooling heat produced by a voice coil by a filling fluid. CONSTITUTION:Two internal and external spaces 17a and 17b formed of yoke members 11, and 14-16 of a magnetic material, center pole 1, voice coil bobbin 5, and plate 3 are filled with cooling fluid 18. Here, movable bobbin 5 is sealed by magnetic liquid 13 obtained by dispersing iron into oil which never mixes with fluid 18 in spaces of members 14 and 16 and bobbin 5, and voice coil 4 is positioned in space 17b without meeting members 15 and 16. As a result, coil 4 is driven in fluid 18 in spaces 17a and 17b; and a large input of heat is cooled by fluid 18 and cooling effect is maintained by the convection of the fluid. Consequently, a high-e-ficiency speaker with high resistance to input can be obtained.
JP16249678A 1978-12-22 1978-12-22 Electroacoustic converter Granted JPS5586288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16249678A JPS5586288A (en) 1978-12-22 1978-12-22 Electroacoustic converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16249678A JPS5586288A (en) 1978-12-22 1978-12-22 Electroacoustic converter

Publications (2)

Publication Number Publication Date
JPS5586288A true JPS5586288A (en) 1980-06-28
JPS6113679B2 JPS6113679B2 (en) 1986-04-15

Family

ID=15755717

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16249678A Granted JPS5586288A (en) 1978-12-22 1978-12-22 Electroacoustic converter

Country Status (1)

Country Link
JP (1) JPS5586288A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2315074A1 (en) * 2006-01-24 2009-03-16 Acustica Beyma, S.A. Loudspeaker with active autorefrigeration. (Machine-translation by Google Translate, not legally binding)
WO2020161669A1 (en) 2019-02-06 2020-08-13 OLTRAMARE, Michel System for cooling the stationary winding of an induction motor
WO2021205295A1 (en) 2020-04-08 2021-10-14 OLTRAMARE, Michel Dual axial magnetic flux induction speaker

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2315074A1 (en) * 2006-01-24 2009-03-16 Acustica Beyma, S.A. Loudspeaker with active autorefrigeration. (Machine-translation by Google Translate, not legally binding)
WO2020161669A1 (en) 2019-02-06 2020-08-13 OLTRAMARE, Michel System for cooling the stationary winding of an induction motor
US11930340B2 (en) 2019-02-06 2024-03-12 Michel OLTRAMARE System for cooling the stationary winding of an induction motor
WO2021205295A1 (en) 2020-04-08 2021-10-14 OLTRAMARE, Michel Dual axial magnetic flux induction speaker

Also Published As

Publication number Publication date
JPS6113679B2 (en) 1986-04-15

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