JPS645199A - Piezoelectric sounding body - Google Patents

Piezoelectric sounding body

Info

Publication number
JPS645199A
JPS645199A JP16063187A JP16063187A JPS645199A JP S645199 A JPS645199 A JP S645199A JP 16063187 A JP16063187 A JP 16063187A JP 16063187 A JP16063187 A JP 16063187A JP S645199 A JPS645199 A JP S645199A
Authority
JP
Japan
Prior art keywords
rings
rubber
diaphragm
sounding body
peripheral part
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
JP16063187A
Other languages
Japanese (ja)
Inventor
Teruyuki Ikeda
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP16063187A priority Critical patent/JPS645199A/en
Publication of JPS645199A publication Critical patent/JPS645199A/en
Pending legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

PURPOSE:To obtain a piezoelectric sounding body which has small higher harmonic distortion by supporting the peripheral part of the sounding body by two rubber O rings from above and below. CONSTITUTION:A diaphragm is formed by sticking piezoelectric materials 12 which electrodes 11 formed on both surfaces on a circular metallic plate 13 and its peripheral part is supported by sandwiching the peripheral part between rubber O rings 14 whose diameter is equal to that of the support part and fixing the rubber O rings 14 to a fixing body 15. At the contact between the fixed rubber O rings 14 and diaphragm, the diaphragm is not fixed completely and supported nearly in a free state because the rubber O rings 14 provide easiness to move in a torsional direction. The diaphragm is therefore displaced efficiently under the same driving conditions and a sounding body having high sound pressure level is obtained. Consequently, unnecessary vibrations in modes other than a main mode hardly occur and a sound with small distortion can be generated.
JP16063187A 1987-06-26 1987-06-26 Piezoelectric sounding body Pending JPS645199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16063187A JPS645199A (en) 1987-06-26 1987-06-26 Piezoelectric sounding body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16063187A JPS645199A (en) 1987-06-26 1987-06-26 Piezoelectric sounding body

Publications (1)

Publication Number Publication Date
JPS645199A true JPS645199A (en) 1989-01-10

Family

ID=15719106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16063187A Pending JPS645199A (en) 1987-06-26 1987-06-26 Piezoelectric sounding body

Country Status (1)

Country Link
JP (1) JPS645199A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007141685A2 (en) * 2006-06-08 2007-12-13 Nxp B.V. Acoustic device and method of manufacturing same
EP2088801A1 (en) * 2006-11-09 2009-08-12 NEC Corporation Piezoelectric speaker and electronic apparatus with piezoelectric speaker
WO2011074579A1 (en) * 2009-12-15 2011-06-23 日本電気株式会社 Actuator, piezoelectric actuator, electronic device, and method for attenuating vibration and converting vibration direction
WO2016067667A1 (en) * 2014-10-30 2016-05-06 京セラ株式会社 Acoustic generation element, acoustic generation device, and electronic instrument

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007141685A2 (en) * 2006-06-08 2007-12-13 Nxp B.V. Acoustic device and method of manufacturing same
WO2007141685A3 (en) * 2006-06-08 2008-02-14 Nxp Bv Acoustic device and method of manufacturing same
US8233646B2 (en) 2006-06-08 2012-07-31 Knowles Electronics Asia Pte. Ltd. Acoustic device and method of manufacturing same
EP2088801A1 (en) * 2006-11-09 2009-08-12 NEC Corporation Piezoelectric speaker and electronic apparatus with piezoelectric speaker
EP2088801A4 (en) * 2006-11-09 2013-05-01 Nec Corp Piezoelectric speaker and electronic apparatus with piezoelectric speaker
WO2011074579A1 (en) * 2009-12-15 2011-06-23 日本電気株式会社 Actuator, piezoelectric actuator, electronic device, and method for attenuating vibration and converting vibration direction
CN102668598A (en) * 2009-12-15 2012-09-12 日本电气株式会社 Actuator, piezoelectric actuator, electronic device, and method for attenuating vibration and converting vibration direction
JPWO2011074579A1 (en) * 2009-12-15 2013-04-25 日本電気株式会社 Actuator, piezoelectric actuator, electronic device, vibration damping and vibration direction changing method
US9137608B2 (en) 2009-12-15 2015-09-15 Nec Corporation Actuator, piezoelectric actuator, electronic device, and method for attenuating vibration and converting vibration direction
WO2016067667A1 (en) * 2014-10-30 2016-05-06 京セラ株式会社 Acoustic generation element, acoustic generation device, and electronic instrument

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