JPS5772497A - Piezoelectric speaker - Google Patents

Piezoelectric speaker

Info

Publication number
JPS5772497A
JPS5772497A JP14909480A JP14909480A JPS5772497A JP S5772497 A JPS5772497 A JP S5772497A JP 14909480 A JP14909480 A JP 14909480A JP 14909480 A JP14909480 A JP 14909480A JP S5772497 A JPS5772497 A JP S5772497A
Authority
JP
Japan
Prior art keywords
diaphragm
transducer
peripheral part
hole
vibrates
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
JP14909480A
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 JP14909480A priority Critical patent/JPS5772497A/en
Publication of JPS5772497A publication Critical patent/JPS5772497A/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; ELECTRIC HEARING AIDS; 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 improve the high sound band to obtain a wide band characteristic, by sticking a transducer along the peripheral part of a hole of a diaphragm provided with the hole. CONSTITUTION:A transducer 13 is fixed to a diaphragm 10 at peripheral part thereof, and the center of the transducer 13 is free. When a signal is applied across lead wires 14a and 14b, the transducer 13 vibrates in a form near the bending vibration mode of the fixed peripheral part. The vibration of the transducer 13 is transferred from the peripheral part of the hole of the diaphragm 10 to the whole of the diaphragm 10 the diaphragm 10 bends and vibrates, and acoustic waves are generated from the diaphragm 10. Consequently, the high sound band of the frequency characteristic is improve, and the frequency characteristic is extended.
JP14909480A 1980-10-23 1980-10-23 Piezoelectric speaker Pending JPS5772497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14909480A JPS5772497A (en) 1980-10-23 1980-10-23 Piezoelectric speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14909480A JPS5772497A (en) 1980-10-23 1980-10-23 Piezoelectric speaker

Publications (1)

Publication Number Publication Date
JPS5772497A true JPS5772497A (en) 1982-05-06

Family

ID=15467558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14909480A Pending JPS5772497A (en) 1980-10-23 1980-10-23 Piezoelectric speaker

Country Status (1)

Country Link
JP (1) JPS5772497A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983498A (en) * 1982-11-04 1984-05-14 Hitachi Maxell Ltd Electroacoustic transducer
WO2007083497A1 (en) * 2005-12-27 2007-07-26 Nec Corporation Piezoelectric actuator and electronic device
JP2010148102A (en) * 2008-12-19 2010-07-01 Samsung Electronics Co Ltd Piezoelectric acoustic transducer and method of fabricating the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233275B1 (en) * 1970-11-19 1977-08-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233275B1 (en) * 1970-11-19 1977-08-26

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983498A (en) * 1982-11-04 1984-05-14 Hitachi Maxell Ltd Electroacoustic transducer
WO2007083497A1 (en) * 2005-12-27 2007-07-26 Nec Corporation Piezoelectric actuator and electronic device
JP5012512B2 (en) * 2005-12-27 2012-08-29 日本電気株式会社 Piezoelectric actuator and electronic device
US8319396B2 (en) 2005-12-27 2012-11-27 Nec Corporation Piezo-electric actuator and electronic device
JP2010148102A (en) * 2008-12-19 2010-07-01 Samsung Electronics Co Ltd Piezoelectric acoustic transducer and method of fabricating the same

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