JPH02147997U - - Google Patents
Info
- Publication number
- JPH02147997U JPH02147997U JP5665489U JP5665489U JPH02147997U JP H02147997 U JPH02147997 U JP H02147997U JP 5665489 U JP5665489 U JP 5665489U JP 5665489 U JP5665489 U JP 5665489U JP H02147997 U JPH02147997 U JP H02147997U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- piezoelectric buzzer
- oscillation circuit
- drives
- outer periphery
- 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
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第1図および第2図は本考案の実施例にかかり
、第1図は圧電ブザーの組み立て状態を示す断面
図、第2図は非安定マルチバイブレータ発振回路
の概略構成を示す等価回路図である。また、第3
図および第4図は従来例にかかり、第3図は圧電
振動板の概略構成を示す斜視図、第4図は自励発
振回路の概略構成を示す等価回路図である。
図における符号1は圧電ブザー、5は圧電振動
板、6は非安定マルチバイブレータ発振回路であ
る。なお、図中の同一符号は、互いに同一もしく
は相当する部品、部分を示している。
Figures 1 and 2 show an embodiment of the present invention, with Figure 1 being a sectional view showing the assembled state of a piezoelectric buzzer, and Figure 2 being an equivalent circuit diagram showing a schematic configuration of an unstable multivibrator oscillation circuit. . Also, the third
4 and 4 relate to a conventional example, FIG. 3 is a perspective view showing a schematic structure of a piezoelectric diaphragm, and FIG. 4 is an equivalent circuit diagram showing a schematic structure of a self-excited oscillation circuit. In the figure, numeral 1 is a piezoelectric buzzer, 5 is a piezoelectric diaphragm, and 6 is an unstable multivibrator oscillation circuit. Note that the same reference numerals in the figures indicate the same or corresponding parts and portions.
Claims (1)
これを駆動する非安定マルチバイブレータ発振回
路とを備えたことを特徴とする圧電ブザー。 a piezoelectric diaphragm fixedly supported along the outer periphery;
A piezoelectric buzzer characterized by comprising an astable multivibrator oscillation circuit that drives the piezoelectric buzzer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5665489U JPH02147997U (en) | 1989-05-16 | 1989-05-16 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5665489U JPH02147997U (en) | 1989-05-16 | 1989-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02147997U true JPH02147997U (en) | 1990-12-17 |
Family
ID=31580668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5665489U Pending JPH02147997U (en) | 1989-05-16 | 1989-05-16 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02147997U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05162673A (en) * | 1991-12-12 | 1993-06-29 | Bridgestone Cycle Co | Buzzer for bicycle |
-
1989
- 1989-05-16 JP JP5665489U patent/JPH02147997U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05162673A (en) * | 1991-12-12 | 1993-06-29 | Bridgestone Cycle Co | Buzzer for bicycle |