JPS55147900A - Ultra-thin speaker - Google Patents

Ultra-thin speaker

Info

Publication number
JPS55147900A
JPS55147900A JP5609679A JP5609679A JPS55147900A JP S55147900 A JPS55147900 A JP S55147900A JP 5609679 A JP5609679 A JP 5609679A JP 5609679 A JP5609679 A JP 5609679A JP S55147900 A JPS55147900 A JP S55147900A
Authority
JP
Japan
Prior art keywords
ceramic
vibration
diaphragm
ultra
face
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.)
Pending
Application number
JP5609679A
Other languages
Japanese (ja)
Inventor
Hideo Kurose
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.)
KUWATA MOMOYO
Original Assignee
KUWATA MOMOYO
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 KUWATA MOMOYO filed Critical KUWATA MOMOYO
Priority to JP5609679A priority Critical patent/JPS55147900A/en
Publication of JPS55147900A publication Critical patent/JPS55147900A/en
Pending 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
    • H04R17/00—Piezo-electric transducers; Electrostrictive transducers

Abstract

PURPOSE:To make a speaker thin and improve the characteristic, by supporting a thin plate-shaped diaphragm consisting of ultra-hard ceramic and a ceramic bimorph vibration element under vibration coupling state. CONSTITUTION:A part of the vibration face of ceramic piezo-electric bimorph element 15 is connected to the approximate center of diaphragm 13 through coupling material 14, and the other face is supported by fixing material 16 extended from frame body 11 so that vibration of element 15 cannot be interfered. As the result, since ceramic diaphragm 13 has a very high stiffness and a very high internal acoustic speed, this speaker becomes high-efficiency considerably in spite of the plane from in comparison with the conventional cone paper and so on, and piston movement in the audio band can be expected because the front is hardly bent.
JP5609679A 1979-05-08 1979-05-08 Ultra-thin speaker Pending JPS55147900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5609679A JPS55147900A (en) 1979-05-08 1979-05-08 Ultra-thin speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5609679A JPS55147900A (en) 1979-05-08 1979-05-08 Ultra-thin speaker

Publications (1)

Publication Number Publication Date
JPS55147900A true JPS55147900A (en) 1980-11-18

Family

ID=13017569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5609679A Pending JPS55147900A (en) 1979-05-08 1979-05-08 Ultra-thin speaker

Country Status (1)

Country Link
JP (1) JPS55147900A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044000A (en) * 1983-08-20 1985-03-08 Matsushita Electric Ind Co Ltd Loudspeaker device
JPH01303900A (en) * 1988-05-31 1989-12-07 Murata Mfg Co Ltd Piezoelectric speaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044000A (en) * 1983-08-20 1985-03-08 Matsushita Electric Ind Co Ltd Loudspeaker device
JPH053800B2 (en) * 1983-08-20 1993-01-18 Matsushita Electric Ind Co Ltd
JPH01303900A (en) * 1988-05-31 1989-12-07 Murata Mfg Co Ltd Piezoelectric speaker

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