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
Application number
JP5665489U
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 JP5665489U priority Critical patent/JPH02147997U/ja
Publication of JPH02147997U publication Critical patent/JPH02147997U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Transducers For Audible Bands (AREA)

Description

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

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 外周縁に沿つて固定支持された圧電振動板と、
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.
JP5665489U 1989-05-16 1989-05-16 Pending JPH02147997U (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05162673A (en) * 1991-12-12 1993-06-29 Bridgestone Cycle Co Buzzer for bicycle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05162673A (en) * 1991-12-12 1993-06-29 Bridgestone Cycle Co Buzzer for bicycle

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