JPS60121399U - piezoelectric speaker - Google Patents
piezoelectric speakerInfo
- Publication number
- JPS60121399U JPS60121399U JP839184U JP839184U JPS60121399U JP S60121399 U JPS60121399 U JP S60121399U JP 839184 U JP839184 U JP 839184U JP 839184 U JP839184 U JP 839184U JP S60121399 U JPS60121399 U JP S60121399U
- Authority
- JP
- Japan
- Prior art keywords
- vibrating body
- piezoelectric speaker
- piezoelectric
- piezoelectric films
- signal voltage
- 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
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来より圧電型スピーカに用いられている振動
体の一例を示す外観斜視図、第２図は上記振動体の構成
および各電極と印加される信号電圧との関係奔示す模式
図、第３図Ａおよび第３図Ｂは上記振動体の各電極に印
加される信号電圧の極性が互いに異なる場合の動作を示
す模式図、第４図は上記振動体の空気体積排除動作を示
しており、第４図Ａは信号電圧を各電極に印加しない場
合、第４図Ｂおよび第４図Ｃは互いに異なる極性 、
の信号電圧を各電極に印加した場合をそれぞれ示す模式
図である。第５図は本考案に係る圧電型スピーカの一実
施例における振動体を示す外観斜視図、第６図は本考案
に係る圧電スピーカの別の実施例における振動体を示す
外観斜視図である。
１．２・・・・・・圧電フィルム、３ａ、３ｂ・・・折
曲 １１、部、４ ａ、 ４ ｂｙ ５ ａｔ ５ ｂ
”・電極、７・・・壁面、１０・・・振動体、−２１・
・・制動剤。FIG. 1 is an external perspective view showing an example of a vibrating body conventionally used in a piezoelectric speaker, and FIG. 2 is a schematic diagram showing the structure of the vibrating body and the relationship between each electrode and the applied signal voltage. 3A and 3B are schematic diagrams showing the operation when the polarities of the signal voltages applied to each electrode of the vibrating body are different from each other, and FIG. 4 is a schematic diagram showing the air volume displacement operation of the vibrating body. In Fig. 4A, the signal voltage is not applied to each electrode, and in Fig. 4B and Fig. 4C, the polarity is different from each other.
FIG. 3 is a schematic diagram showing a case where a signal voltage of 1 is applied to each electrode. FIG. 5 is an external perspective view showing the vibrating body in one embodiment of the piezoelectric speaker according to the present invention, and FIG. 6 is an external perspective view showing the vibrating body in another embodiment of the piezoelectric speaker according to the present invention. 1.2...Piezoelectric film, 3a, 3b...Bending 11, part, 4 a, 4 by 5 at 5 b
”・Electrode, 7…Wall surface, 10…Vibrating body, -21・
...braking agent.
Claims (1)
し、突出方向が順法逆方向となるように連続的に折り返
し、少なくとも各折曲部の両面に信号電圧が印加される
電極を崎ヒで成る振動体を備え、この振動体の上記各圧
電フィルム間あるいは隣接する壁部の少なくとも片面の
所定部分に制動剤を塗布したことを特徴とする圧電型ス
ピーカ。Two piezoelectric films that have been polarized are pasted together and successively folded back so that their protruding directions are opposite to each other, and electrodes to which a signal voltage is applied are placed on at least both sides of each folded portion. What is claimed is: 1. A piezoelectric speaker comprising: a vibrating body; a damping agent is applied to a predetermined portion of at least one side of the piezoelectric films or adjacent walls of the vibrating body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP839184U JPS60121399U (en) | 1984-01-25 | 1984-01-25 | piezoelectric speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP839184U JPS60121399U (en) | 1984-01-25 | 1984-01-25 | piezoelectric speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60121399U true JPS60121399U (en) | 1985-08-16 |
Family
ID=30487627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP839184U Pending JPS60121399U (en) | 1984-01-25 | 1984-01-25 | piezoelectric speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60121399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383898U (en) * | 1986-11-20 | 1988-06-01 |
-
1984
- 1984-01-25 JP JP839184U patent/JPS60121399U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383898U (en) * | 1986-11-20 | 1988-06-01 |
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