JPH01112067U - - Google Patents
Info
- Publication number
- JPH01112067U JPH01112067U JP1988005946U JP594688U JPH01112067U JP H01112067 U JPH01112067 U JP H01112067U JP 1988005946 U JP1988005946 U JP 1988005946U JP 594688 U JP594688 U JP 594688U JP H01112067 U JPH01112067 U JP H01112067U
- Authority
- JP
- Japan
- Prior art keywords
- external electrode
- ceramic part
- internal electrode
- internal
- ceramic
- 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
- 239000000919 ceramic Substances 0.000 claims description 11
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Description
第１図は本考案の一実施例による積層型圧電ア
クチユエータの断面図である。第２図は従来の積
層型圧電アクチユエータの断面図である。
１０…第１のセラミツク部、１１…第１の面、
１２…第２の面、１３…第３の面、１４…第４の
面、２１…第１の内部電極、２２…第２の内部電
極、３１…第１の外部電極、３２…第２の外部電
極、４０…ガラス絶縁部、４２…リード線、４３
…半田、５０…第２のセラミツク部、５１…主面
、５２…側面。
FIG. 1 is a sectional view of a laminated piezoelectric actuator according to an embodiment of the present invention. FIG. 2 is a sectional view of a conventional laminated piezoelectric actuator. 10...First ceramic part, 11...First surface,
12... second surface, 13... third surface, 14... fourth surface, 21... first internal electrode, 22... second internal electrode, 31... first external electrode, 32... second External electrode, 40...Glass insulation part, 42...Lead wire, 43
...Solder, 50...Second ceramic part, 51...Main surface, 52...Side surface.
Claims (1)
、各々が前記第１の面に実質的に直交すると共に
、互に対向する第３及び第４の面とを有する、圧
電的に活性な第１のセラミツク部と、前記第１の
セラミツク部中に、前記第１の面に実質的に平行
に設けられた薄板状の第１の内部電極と、前記第
１のセラミツク部中に、前記第１の内部電極に平
行に設けられた薄板状の第２の内部電極と、前記
第１のセラミツク部の前記第３の面上に設けられ
、前記第１及び第２の内部電極のうちの前記第１
の内部電極のみに電気的に接続する第１の外部電
極と、前記第１のセラミツク部の前記第４の面上
に設けられ、前記第１及び第２の内部電極のうち
の前記第２の内部電極のみに電気的に接続する第
２の外部電極とを有する積層型圧電アクチユエー
タにおいて、前記第１のセラミツク部の前記第１
の面に主面が接合された、圧電的に不活性な第２
のセラミツク部を有し、該第２のセラミツク部は
、前記第１のセラミツク部の前記第３の面と一平
面をなす側面を有しており、前記第１の外部電極
は前記第２のセラミツク部の前記側面上にまで延
長されて設けられており、該側面に対応する前記
第１の外部電極上に、リード線が接続され、前記
第２の外部電極は前記第１のセラミツク部の前記
第２の面上にまで延長されて設けられていること
を特徴とする積層型圧電アクチユエータ。 a first surface, a second surface opposite the first surface, and third and fourth surfaces each substantially perpendicular to the first surface and opposite each other; a piezoelectrically active first ceramic portion; a thin plate-shaped first internal electrode provided in the first ceramic portion substantially parallel to the first surface; a thin plate-shaped second internal electrode provided in parallel to the first internal electrode; and a thin plate-shaped second internal electrode provided on the third surface of the first ceramic part, the first of the internal electrodes;
a first external electrode electrically connected only to the internal electrode; and a first external electrode provided on the fourth surface of the first ceramic part and connected to the second of the first and second internal electrodes. In the multilayer piezoelectric actuator having a second external electrode electrically connected only to the internal electrode, the first
a piezoelectrically inactive second surface whose principal surface is bonded to the surface of the
the second ceramic part has a side surface that is flush with the third surface of the first ceramic part, and the first external electrode has a side surface that is flush with the third surface of the first ceramic part; A lead wire is connected to the first external electrode corresponding to the side surface of the ceramic part, and the second external electrode is connected to the first external electrode of the first ceramic part. A laminated piezoelectric actuator, characterized in that the layered piezoelectric actuator is extended onto the second surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988005946U JPH01112067U (en) | 1988-01-22 | 1988-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988005946U JPH01112067U (en) | 1988-01-22 | 1988-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01112067U true JPH01112067U (en) | 1989-07-27 |
Family
ID=31209765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988005946U Pending JPH01112067U (en) | 1988-01-22 | 1988-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01112067U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219972A (en) * | 1983-05-30 | 1984-12-11 | Nec Corp | Electrostriction effect element |
| JPS6122374B2 (en) * | 1984-12-28 | 1986-05-31 | Pioneer Electronic Corp |
-
1988
- 1988-01-22 JP JP1988005946U patent/JPH01112067U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219972A (en) * | 1983-05-30 | 1984-12-11 | Nec Corp | Electrostriction effect element |
| JPS6122374B2 (en) * | 1984-12-28 | 1986-05-31 | Pioneer Electronic Corp |
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