JPH0350357U - - Google Patents
Info
- Publication number
- JPH0350357U JPH0350357U JP1989110838U JP11083889U JPH0350357U JP H0350357 U JPH0350357 U JP H0350357U JP 1989110838 U JP1989110838 U JP 1989110838U JP 11083889 U JP11083889 U JP 11083889U JP H0350357 U JPH0350357 U JP H0350357U
- Authority
- JP
- Japan
- Prior art keywords
- laminate
- piezoelectric
- outer periphery
- metal electrode
- electrode plates
- 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
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims 2
- 238000009413 insulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000012212 insulator Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Laminated Bodies (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第１図はコーテイング材の弾性率と圧電積層体
の耐久性との関係を示す図、第２〜４図は圧電積
層体の構成を示す図、第５〜６図は電極破損モー
ドを示す図、第７〜９図は電極への応力集中と電
極破損モードの関係を説明する図で、第９図は本
考案の実施例の場合を説明する図である。
１……シム、２……インシユレータ、３……内
部電極、３ｂ……突起部、４……圧電ペレツト、
５……外部電極、６……絶縁コーテイング材。
Figure 1 is a diagram showing the relationship between the elastic modulus of the coating material and the durability of the piezoelectric laminate, Figures 2-4 are diagrams showing the structure of the piezoelectric laminate, and Figures 5-6 are diagrams showing the electrode failure mode. , FIGS. 7 to 9 are diagrams for explaining the relationship between stress concentration on an electrode and electrode failure mode, and FIG. 9 is a diagram for explaining the case of an embodiment of the present invention. 1...Shim, 2...Insulator, 3...Internal electrode, 3b...Protrusion, 4...Piezoelectric pellet,
5... External electrode, 6... Insulating coating material.
Claims (1)
積層体の外周部にて金属電極板の延長突起部を外
部電極で接続し、かつ積層体の外周部を絶縁コー
テイングした圧電積層体において、該絶縁コーテ
イング材の弾性率が０．３〜１０Kgｆ／mm2であ
ることを特徴とする圧電積層体。 In a piezoelectric laminate in which piezoelectric plates and metal electrode plates are alternately laminated, the extended protrusions of the metal electrode plates are connected by external electrodes at the outer periphery of the resulting laminate, and the outer periphery of the laminate is coated with insulation, A piezoelectric laminate characterized in that the insulating coating material has an elastic modulus of 0.3 to 10 Kgf/mm 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989110838U JP2500116Y2 (en) | 1989-09-25 | 1989-09-25 | Piezoelectric laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989110838U JP2500116Y2 (en) | 1989-09-25 | 1989-09-25 | Piezoelectric laminate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0350357U true JPH0350357U (en) | 1991-05-16 |
| JP2500116Y2 JP2500116Y2 (en) | 1996-06-05 |
Family
ID=31659345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989110838U Expired - Lifetime JP2500116Y2 (en) | 1989-09-25 | 1989-09-25 | Piezoelectric laminate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2500116Y2 (en) |
-
1989
- 1989-09-25 JP JP1989110838U patent/JP2500116Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2500116Y2 (en) | 1996-06-05 |
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