JPS5573199A - Electroacoustic transducer - Google Patents

Electroacoustic transducer

Info

Publication number
JPS5573199A
JPS5573199A JP14683478A JP14683478A JPS5573199A JP S5573199 A JPS5573199 A JP S5573199A JP 14683478 A JP14683478 A JP 14683478A JP 14683478 A JP14683478 A JP 14683478A JP S5573199 A JPS5573199 A JP S5573199A
Authority
JP
Japan
Prior art keywords
case
frame
film
hermetically
substance
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
JP14683478A
Other languages
Japanese (ja)
Inventor
Akio Kawasaki
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP14683478A priority Critical patent/JPS5573199A/en
Publication of JPS5573199A publication Critical patent/JPS5573199A/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—Piezoelectric transducers; Electrostrictive transducers

Abstract

PURPOSE:To secure an easy manufacture of the electroacoustic transducer with a simple constitution by sticking the high molecular piezoelectric film to the opening of the case substance and then sealing up inside the case substance along with the air pressure set a little higher than the atmospheric pressure within the case substance. CONSTITUTION:One end 1A of case substance 1 is opened, and at the same time the other end 1B is sealed up hermetically. And through-hole 2A nearly identical to opening 1A of case 1 is drilled to frame 2. Then high molecular piezoelectric film 3 is stuck hermetically to frame 2, and frame 2 is adhered hermetically to end 1A of case 1. At the same time, the air pressure is set a little higher than the atmospheric pressure within the airtight container formed with case 1, frame 2 and film 3 each. Film 3 is protruded hemispherically since part 3C corresponding to hole 2A features the internal air pressure. In other words, film 3 is bent under the state of application of the tension, and thus the sound pressure applied is converted into the electric signal to be fetched to terminals 3A and 3B.
JP14683478A 1978-11-28 1978-11-28 Electroacoustic transducer Pending JPS5573199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14683478A JPS5573199A (en) 1978-11-28 1978-11-28 Electroacoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14683478A JPS5573199A (en) 1978-11-28 1978-11-28 Electroacoustic transducer

Publications (1)

Publication Number Publication Date
JPS5573199A true JPS5573199A (en) 1980-06-02

Family

ID=15416567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14683478A Pending JPS5573199A (en) 1978-11-28 1978-11-28 Electroacoustic transducer

Country Status (1)

Country Link
JP (1) JPS5573199A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898993A (en) * 1981-12-09 1983-06-13 Yokogawa Hokushin Electric Corp Highmolecular piezoelectric converter
JP2007028205A (en) * 2005-07-15 2007-02-01 Sony Corp Electroacoustic transducer and method of forming diaphragm thereof
US7835539B2 (en) 2005-07-20 2010-11-16 Sony Corporation Electroacoustic transducer using diaphragm and method for producing diaphragm

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898993A (en) * 1981-12-09 1983-06-13 Yokogawa Hokushin Electric Corp Highmolecular piezoelectric converter
JP2007028205A (en) * 2005-07-15 2007-02-01 Sony Corp Electroacoustic transducer and method of forming diaphragm thereof
US7822216B2 (en) 2005-07-15 2010-10-26 Sony Corporation Electroacoustic transducer using diaphragm and method for producing diaphragm
US7835539B2 (en) 2005-07-20 2010-11-16 Sony Corporation Electroacoustic transducer using diaphragm and method for producing diaphragm

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