JPS61195698U - - Google Patents
Info
- Publication number
- JPS61195698U JPS61195698U JP7883885U JP7883885U JPS61195698U JP S61195698 U JPS61195698 U JP S61195698U JP 7883885 U JP7883885 U JP 7883885U JP 7883885 U JP7883885 U JP 7883885U JP S61195698 U JPS61195698 U JP S61195698U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- alarm device
- diaphragm
- piezoelectric element
- adjacent
- 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
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第１図は発音体の第１の実施例を示す平面図、
第２図は第１図の発音体を採用した圧電警音器を
示す断面図である。第３図と第４図は発音体の他
の実施例を示す平面図、第５図は発音体の他の実
施例を示す断面図である。
〔符号の説明〕、１……振動板、２１〜２４…
…圧電素子、３……ハウジング、４……カバー。
FIG. 1 is a plan view showing a first embodiment of the sounding body;
FIG. 2 is a sectional view showing a piezoelectric alarm device employing the sounding body of FIG. 1. 3 and 4 are plan views showing other embodiments of the sounding body, and FIG. 5 is a sectional view showing another embodiment of the sounding body. [Explanation of symbols], 1... diaphragm, 21 to 24...
...piezoelectric element, 3...housing, 4...cover.
Claims (1)
部を中心とし間隔を置いて配置して振動板に貼り
合わせた発音体を備え、隣接する各圧電素子に順
次位相の異なる交流電圧を印加するよう構成した
ことを特徴とする、圧電警音器。 ２ 隣接する各圧電素子に逆位相の交流電圧を印
加するよう構成したことを特徴とする、請求範囲
第１項記載の圧電警音器。[Claims for Utility Model Registration] 1. A sounding body in which piezoelectric elements divided into a plurality of pieces are arranged at intervals around the center of the diaphragm and bonded to the diaphragm, and each adjacent piezoelectric element A piezoelectric alarm device configured to sequentially apply alternating current voltages with different phases. 2. The piezoelectric alarm device according to claim 1, wherein the piezoelectric alarm device is configured to apply an AC voltage of opposite phase to each adjacent piezoelectric element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7883885U JPS61195698U (en) | 1985-05-27 | 1985-05-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7883885U JPS61195698U (en) | 1985-05-27 | 1985-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61195698U true JPS61195698U (en) | 1986-12-05 |
Family
ID=30623188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7883885U Pending JPS61195698U (en) | 1985-05-27 | 1985-05-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61195698U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007060768A1 (en) * | 2005-11-24 | 2007-05-31 | Murata Manufacturing Co., Ltd. | Electroacoustic transducer |
| JP2020506561A (en) * | 2017-12-13 | 2020-02-27 | 北京小米移動軟件有限公司Ｂｅｉｊｉｎｇ Ｘｉａｏｍｉ Ｍｏｂｉｌｅ Ｓｏｆｔｗａｒｅ Ｃｏ．，Ｌｔｄ． | Mobile terminal, control method thereof, program and recording medium |
-
1985
- 1985-05-27 JP JP7883885U patent/JPS61195698U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007060768A1 (en) * | 2005-11-24 | 2007-05-31 | Murata Manufacturing Co., Ltd. | Electroacoustic transducer |
| JP2020506561A (en) * | 2017-12-13 | 2020-02-27 | 北京小米移動軟件有限公司Ｂｅｉｊｉｎｇ Ｘｉａｏｍｉ Ｍｏｂｉｌｅ Ｓｏｆｔｗａｒｅ Ｃｏ．，Ｌｔｄ． | Mobile terminal, control method thereof, program and recording medium |