JPS6381495U - - Google Patents

Info

Publication number
JPS6381495U
JPS6381495U JP17349786U JP17349786U JPS6381495U JP S6381495 U JPS6381495 U JP S6381495U JP 17349786 U JP17349786 U JP 17349786U JP 17349786 U JP17349786 U JP 17349786U JP S6381495 U JPS6381495 U JP S6381495U
Authority
JP
Japan
Prior art keywords
piezoelectric
diaphragm
container
utility
attached
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
JP17349786U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP17349786U priority Critical patent/JPS6381495U/ja
Publication of JPS6381495U publication Critical patent/JPS6381495U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の圧電スピーカーの一実施例を
示す断面図、第２図は第１図の圧電スピーカーに
使用される圧電振動子の拡大断面図、第３図は従
来の圧電スピーカーの断面図、第４図は本考案及
び従来の圧電スピーカーの音圧レベルを示す特性
図である。 １：容器、２：圧電振動子、３：振動板、７：
制動板。 Fig. 1 is a sectional view showing an embodiment of the piezoelectric speaker of the present invention, Fig. 2 is an enlarged sectional view of a piezoelectric vibrator used in the piezoelectric speaker of Fig. 1, and Fig. 3 is a sectional view of a conventional piezoelectric speaker. 4 are characteristic diagrams showing the sound pressure level of the piezoelectric speaker of the present invention and the conventional piezoelectric speaker. 1: Container, 2: Piezoelectric vibrator, 3: Vibration plate, 7:
brake plate.

Claims (1)

【実用新案登録請求の範囲】 (1) 内部に凹部を有する容器に、圧電振動子が
取着された振動板を、該圧電振動子が容器の凹部
内に収納されるように取付けて成る圧電スピーカ
ーにおいて、前記圧電振動子を制動板を介して振
動板に取着したことを特徴とする圧電スピーカー
。 (2) 前記制動板の面積が振動板の面積の１０乃
至７５％であることを特徴とする実用新案登録請
求の範囲第１項に記載の圧電スピーカー。 (3) 前記制動板の厚みが０．０５乃至０．５mm
であることを特徴とする実用新案登録請求の範囲
第１項に記載の圧電スピーカー。[Claims for Utility Model Registration] (1) A piezoelectric device comprising a container having a recess inside and a diaphragm to which a piezoelectric vibrator is attached so that the piezoelectric vibrator is housed in the recess of the container. A piezoelectric speaker, characterized in that the piezoelectric vibrator is attached to a diaphragm via a damping plate. (2) The piezoelectric speaker according to claim 1, wherein the area of the braking plate is 10 to 75% of the area of the diaphragm. (3) The thickness of the brake plate is 0.05 to 0.5 mm.
A piezoelectric speaker according to claim 1 of the utility model registration claim.
JP17349786U 1986-11-12 1986-11-12 Pending JPS6381495U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17349786U JPS6381495U (en) 1986-11-12 1986-11-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17349786U JPS6381495U (en) 1986-11-12 1986-11-12

Publications (1)

Publication Number Publication Date
JPS6381495U true JPS6381495U (en) 1988-05-28

Family

ID=31111009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17349786U Pending JPS6381495U (en) 1986-11-12 1986-11-12

Country Status (1)

Country Link
JP (1) JPS6381495U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005094121A1 (en) * 2004-03-25 2005-10-06 Nec Corporation Piezoelectric acoustic element, acoustic device and portable terminal device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005094121A1 (en) * 2004-03-25 2005-10-06 Nec Corporation Piezoelectric acoustic element, acoustic device and portable terminal device

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