JPS59878Y2 - piezoelectric buzzer - Google Patents
piezoelectric buzzerInfo
- Publication number
- JPS59878Y2 JPS59878Y2 JP9638578U JP9638578U JPS59878Y2 JP S59878 Y2 JPS59878 Y2 JP S59878Y2 JP 9638578 U JP9638578 U JP 9638578U JP 9638578 U JP9638578 U JP 9638578U JP S59878 Y2 JPS59878 Y2 JP S59878Y2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- piezoelectric buzzer
- vibrating body
- present
- buzzer
- 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.)
- Expired
Links
Description
【考案の詳細な説明】
本考案は圧電磁器等の圧電体を利用した発音体、いわゆ
る圧電ブザーに関する。[Detailed Description of the Invention] The present invention relates to a sounding body using a piezoelectric material such as a piezoelectric ceramic, a so-called piezoelectric buzzer.
従来圧電ブザーは第１図に示される如く圧電体１の両面
にそれぞれ面電極２を形成し、両面電極間に駆動回路か
らの駆動信号を印加して発音させていた。In the conventional piezoelectric buzzer, as shown in FIG. 1, plane electrodes 2 are formed on both sides of a piezoelectric body 1, and a drive signal from a drive circuit is applied between the electrodes on both sides to generate sound.
しかしながら、この様な構成の場合、例えば振動体の背
面を密閉構造とする際等にはリード線の引き出しが難し
い等の問題が発生した。However, in the case of such a configuration, problems such as difficulty in drawing out the lead wires have occurred when, for example, the back surface of the vibrating body is made into a sealed structure.
本考案は、これらの問題を解決した圧電ブザーを得よう
とするものである。The present invention aims to provide a piezoelectric buzzer that solves these problems.
以下図面に従って本考案を説明する。The present invention will be explained below according to the drawings.
第２図は本考案実施例の圧電ブザーの振動体部分を示す
斜視図である。FIG. 2 is a perspective view showing the vibrating body portion of the piezoelectric buzzer according to the embodiment of the present invention.
同図において、振動体３１は共振周波数に対応する厚さ
と直径を具備する円板状圧電体２１の一面に、環状のく
しの歯電極２２と２３とがインターディジタルに形成さ
れていることにより、ブザーとしてより良好な動作が得
られる。In the figure, a vibrating body 31 has annular comb tooth electrodes 22 and 23 interdigitally formed on one surface of a disc-shaped piezoelectric body 21 having a thickness and a diameter corresponding to a resonance frequency. Better operation as a buzzer can be obtained.
振動体３１の好適な具体例としては、厚さＱ、３ｍｍ、
直径２６ｍｍの圧電磁器円板が挙げられる。A preferred specific example of the vibrating body 31 has a thickness Q of 3 mm;
A piezoelectric ceramic disc with a diameter of 26 mm is mentioned.
この様にして形成した振動体３１は第３図に示される如
く容器３２中に支持され、駆動回路よりの駆動信号によ
って駆動される。The vibrating body 31 formed in this manner is supported in a container 32 as shown in FIG. 3, and is driven by a drive signal from a drive circuit.
本実施例の場合周波数３．３ ＫＨｚにて良好に発音し
た。In this example, good sound was produced at a frequency of 3.3 KHz.
第４図は本考案の他の実施例の圧電ブザーの振動体部分
を示す斜視図である。FIG. 4 is a perspective view showing a vibrating body portion of a piezoelectric buzzer according to another embodiment of the present invention.
本実施例においては圧電磁器４１の他面に金属振動板４
４が接着剤で取付けられている。In this embodiment, a metal diaphragm 4 is provided on the other surface of the piezoelectric ceramic 41.
4 is attached with adhesive.
この場合接着面に電極が形成されていないので通常の接
着剤で極めて強固に接着できる。In this case, since no electrodes are formed on the adhesive surface, the adhesive can be bonded extremely firmly with a normal adhesive.
以上述べた如く本考案は、共振周波数に対応する厚さと
直径を具備する円板状の圧電体からなる振動子の一面に
環状のくしの点電極をインターディジタルに設けたこと
を特徴とする圧電ブザーであって、リード端子の取出し
が極めて容易な上、支持体への取付けあるいは金属板へ
の取付けも容易である等極めて有用な考案である。As described above, the present invention is a piezoelectric device characterized in that annular comb point electrodes are interdigitally provided on one surface of a vibrator made of a disc-shaped piezoelectric material having a thickness and a diameter corresponding to the resonance frequency. This buzzer is an extremely useful device, as it is extremely easy to take out the lead terminal, and it is also easy to attach it to a support or a metal plate.
第１図は従来例の圧電ブザーの振動体を示す斜視図であ
る。
第２図は本考案実施例の圧電ブザーの振動体を示す斜視
図である。
第３図は本考案実施例の圧電ブザーの断面図である。
第４図は本考案の圧電ブザーの他の実施例の振動体を示
す斜視図である。FIG. 1 is a perspective view showing a vibrating body of a conventional piezoelectric buzzer. FIG. 2 is a perspective view showing the vibrating body of the piezoelectric buzzer according to the embodiment of the present invention. FIG. 3 is a sectional view of a piezoelectric buzzer according to an embodiment of the present invention. FIG. 4 is a perspective view showing a vibrating body of another embodiment of the piezoelectric buzzer of the present invention.
Claims (1)
電体からなる振動子の一面に環状のくしの歯電極をイン
ターディジタルに設けたことを特徴とする圧電ブザーA piezoelectric buzzer characterized in that annular comb-tooth electrodes are interdigitally provided on one surface of a vibrator made of a disc-shaped piezoelectric material having a thickness and diameter corresponding to a resonant frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9638578U JPS59878Y2 (en) | 1978-07-13 | 1978-07-13 | piezoelectric buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9638578U JPS59878Y2 (en) | 1978-07-13 | 1978-07-13 | piezoelectric buzzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5516521U JPS5516521U (en) | 1980-02-01 |
| JPS59878Y2 true JPS59878Y2 (en) | 1984-01-11 |
Family
ID=29030220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9638578U Expired JPS59878Y2 (en) | 1978-07-13 | 1978-07-13 | piezoelectric buzzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59878Y2 (en) |
-
1978
- 1978-07-13 JP JP9638578U patent/JPS59878Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5516521U (en) | 1980-02-01 |
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