JPS57119600A - Piezoelectric speaker - Google Patents

Piezoelectric speaker

Info

Publication number
JPS57119600A
JPS57119600A JP684881A JP684881A JPS57119600A JP S57119600 A JPS57119600 A JP S57119600A JP 684881 A JP684881 A JP 684881A JP 684881 A JP684881 A JP 684881A JP S57119600 A JPS57119600 A JP S57119600A
Authority
JP
Japan
Prior art keywords
sounding body
diaphragm
support
pressing means
piezoelectric
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
JP684881A
Other languages
Japanese (ja)
Inventor
Yoshihiko Nakagawa
Tsutomu Yoshii
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing 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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP684881A priority Critical patent/JPS57119600A/en
Publication of JPS57119600A publication Critical patent/JPS57119600A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

PURPOSE:To drive an oscillator, such as a wall, efficiently by applying pressure to the center part of a sounding body by supporting the circumferential part of the sounding body, obtained by bonding a piezoelectric ceramic plate to a diaphragm, by a support and by bringing the support into contact with the diaphragm fixedly. CONSTITUTION:A sound body 1 is composed of a piezoelectric diaphragm of unimorph structure having a piezoelectric cermamic plate bonded to a metallic diaphragm. The external circumferential part of the sounding body 1 is fixed to one side of an annular support 2, thus supporting the circumference. The side circumferential surfaces of the support 2 and the fitting side of the sounding body 1 are coverted with a cover 3, and a dish-shaped or beltlike fixing tool 4 is fitted outside of the cover 3 at an interval from the sounding body 1. At the center part of the fitting tool 4, a pressing means 5 by a screw, etc., is provided and the center part of the sounding body 1 is pressed through the adjustment of the pressing means. Then, characteristics of timbre, etc., of the sounding body 1 are varied through the adjustment of the pressing means 5 to drive the oscillating body, such as a wall, efficiently, so that a decorative speaker, etc., is obtained.
JP684881A 1981-01-19 1981-01-19 Piezoelectric speaker Pending JPS57119600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP684881A JPS57119600A (en) 1981-01-19 1981-01-19 Piezoelectric speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP684881A JPS57119600A (en) 1981-01-19 1981-01-19 Piezoelectric speaker

Publications (1)

Publication Number Publication Date
JPS57119600A true JPS57119600A (en) 1982-07-26

Family

ID=11649651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP684881A Pending JPS57119600A (en) 1981-01-19 1981-01-19 Piezoelectric speaker

Country Status (1)

Country Link
JP (1) JPS57119600A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023008423A1 (en) * 2021-07-30 2023-02-02 Ａｇｃ株式会社 Diaphragm, diaphragm with exciter, and vehicular diaphragm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023008423A1 (en) * 2021-07-30 2023-02-02 Ａｇｃ株式会社 Diaphragm, diaphragm with exciter, and vehicular diaphragm

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