JPH0345671U - - Google Patents
Info
- Publication number
- JPH0345671U JPH0345671U JP1989106614U JP10661489U JPH0345671U JP H0345671 U JPH0345671 U JP H0345671U JP 1989106614 U JP1989106614 U JP 1989106614U JP 10661489 U JP10661489 U JP 10661489U JP H0345671 U JPH0345671 U JP H0345671U
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- laminated
- printed
- piezoelectric
- electrodes
- 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
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Description
第１図ａは本考案の積層型圧電アクチユエータ
の一実施例の構成を示す側面図、第１図ｂは同図
ａの１つのセラミツクス素子の一部切り欠き拡大
斜視図、第２図はフリツトの含有量の違いによる
セラミツクス素子と印刷電極との接触関係の違い
を示す説明図、第３図および第４図は従来の積層
型圧電アクチユエータを構成するセラミツクス素
子に発生するクラツクの様子を示す斜視図である
。
１……セラミツクス素子（圧電板）、２……印
刷電極、２ａ……中心部、２ｂ……周縁部、３…
…金属電極、４……外部電極、５……フリツト。
FIG. 1a is a side view showing the configuration of an embodiment of the laminated piezoelectric actuator of the present invention, FIG. 1b is an enlarged partially cutaway perspective view of one ceramic element shown in FIG. Figures 3 and 4 are perspective views showing the appearance of cracks that occur in ceramic elements that constitute a conventional laminated piezoelectric actuator. It is a diagram. DESCRIPTION OF SYMBOLS 1... Ceramic element (piezoelectric plate), 2... Printed electrode, 2a... Center part, 2b... Peripheral part, 3...
...Metal electrode, 4...External electrode, 5...Fritt.
Claims (1)
極を印刷した圧電板を、前記印刷電極間に外部引
き出し用金属電極を挟んで複数枚積層してなる圧
電アクチユエータにおいて、 前記印刷電極に含有させるフリツト量を、電極
中心部近傍ではゼロもしくは極力少なくし、電極
周縁部では中心部近傍より増やしたことを特徴と
する積層型圧電アクチユエータ。[Scope of Claim for Utility Model Registration] A piezoelectric actuator in which a plurality of piezoelectric plates are laminated with electrodes having an area smaller than the bottom surface of the piezoelectric plate printed on the laminated surface with a metal electrode for external extraction sandwiched between the printed electrodes. . A laminated piezoelectric actuator, characterized in that the amount of frit contained in the printed electrode is zero or as small as possible near the electrode center, and is increased at the electrode periphery than near the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989106614U JPH0345671U (en) | 1989-09-13 | 1989-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989106614U JPH0345671U (en) | 1989-09-13 | 1989-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0345671U true JPH0345671U (en) | 1991-04-26 |
Family
ID=31655340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989106614U Pending JPH0345671U (en) | 1989-09-13 | 1989-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0345671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006130487A (en) * | 2004-11-02 | 2006-05-25 | Tadashi Hasegawa | Efficient use of livestock waste and garbage |
-
1989
- 1989-09-13 JP JP1989106614U patent/JPH0345671U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006130487A (en) * | 2004-11-02 | 2006-05-25 | Tadashi Hasegawa | Efficient use of livestock waste and garbage |