JPS61104000U - - Google Patents
Info
- Publication number
- JPS61104000U JPS61104000U JP1984187737U JP18773784U JPS61104000U JP S61104000 U JPS61104000 U JP S61104000U JP 1984187737 U JP1984187737 U JP 1984187737U JP 18773784 U JP18773784 U JP 18773784U JP S61104000 U JPS61104000 U JP S61104000U
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- piezoelectric element
- gap
- center
- electrode portion
- 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.)
- Granted
Links
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第１図は本考案に係る圧電素子の平面図、第２
図は第１図Ａ１―Ａ１線上における断面図、第３
図は本考案に係る圧電素子の別の実施例における
平面図、第４図は従来の圧電素子の平面図、第５
図は第１図Ｂ１―Ｂ１線上における断面図である
。
１……振動板、２……圧電振動子、２１……電
極、２２……第１電極、２３……第２電極、２２
１……内側電極部、２２２……外側電極部、Ｇ１
……ギヤツプ、Ｇ１１……幅広ギヤツプ部分。
Figure 1 is a plan view of a piezoelectric element according to the present invention, Figure 2 is a plan view of a piezoelectric element according to the present invention;
The figures are a sectional view taken along the line A1 - A1 in Figure 1, and Figure 3.
The figures are a plan view of another embodiment of the piezoelectric element according to the present invention, FIG. 4 is a plan view of a conventional piezoelectric element, and FIG.
The figure is a sectional view taken along the line B 1 -B 1 in FIG. 1. DESCRIPTION OF SYMBOLS 1... Vibration plate, 2... Piezoelectric vibrator, 21... Electrode, 22... First electrode, 23... Second electrode, 22
1... Inner electrode part, 222... Outer electrode part, G 1
...Gap, G 11 ...Wide gap part.
Claims (1)
面側に、中心部に設けた円形状の内側電極部分及
びその外側に間隔をおいて円環状に形成された外
側電極部分を有する第１電極と、この第１電極の
前記内側電極部分と外側電極部分との間の間隔内
に環状のギヤツプを介して独立して形成された第
２電極とを有する圧電素子において、前記第１電
極の前記外側電極部分と前記第２電極との間のギ
ヤツプの一部に、他の部分より幅広のギヤツプ部
分を設けたことを特徴とする圧電素子。 A piezoelectric element having an electrode on one side in the thickness direction and a circular inner electrode portion provided at the center and an annular outer electrode portion spaced apart from the center on the other side of the piezoelectric element body. A piezoelectric element having one electrode and a second electrode formed independently through an annular gap within a space between the inner electrode portion and the outer electrode portion of the first electrode, wherein the first electrode A piezoelectric element characterized in that a gap portion between the outer electrode portion and the second electrode is provided with a gap portion wider than the other portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984187737U JPH0328635Y2 (en) | 1984-12-11 | 1984-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984187737U JPH0328635Y2 (en) | 1984-12-11 | 1984-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61104000U true JPS61104000U (en) | 1986-07-02 |
| JPH0328635Y2 JPH0328635Y2 (en) | 1991-06-19 |
Family
ID=30745198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984187737U Expired JPH0328635Y2 (en) | 1984-12-11 | 1984-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0328635Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007256331A (en) * | 2006-03-20 | 2007-10-04 | Anden | Piezoelectric buzzer |
-
1984
- 1984-12-11 JP JP1984187737U patent/JPH0328635Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007256331A (en) * | 2006-03-20 | 2007-10-04 | Anden | Piezoelectric buzzer |
| JP4704257B2 (en) * | 2006-03-20 | 2011-06-15 | アンデン株式会社 | Piezoelectric buzzer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0328635Y2 (en) | 1991-06-19 |