CN203787472U - Piezoelectric ceramic sheet counter-rotating pole structure - Google Patents
Piezoelectric ceramic sheet counter-rotating pole structure Download PDFInfo
- Publication number
- CN203787472U CN203787472U CN201420159204.5U CN201420159204U CN203787472U CN 203787472 U CN203787472 U CN 203787472U CN 201420159204 U CN201420159204 U CN 201420159204U CN 203787472 U CN203787472 U CN 203787472U
- Authority
- CN
- China
- Prior art keywords
- silver coating
- counter
- ceramic sheet
- rotating pole
- silvering layer
- 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.)
- Expired - Lifetime
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 239000003292 glue Substances 0.000 claims abstract description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 44
- 238000000576 coating method Methods 0.000 claims description 44
- 229910052709 silver Inorganic materials 0.000 claims description 44
- 239000004332 silver Substances 0.000 claims description 44
- 239000011248 coating agent Substances 0.000 claims description 43
- 239000000758 substrate Substances 0.000 claims description 11
- 230000032683 aging Effects 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 abstract 2
- 230000010287 polarization Effects 0.000 abstract 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model relates to a piezoelectric ceramic sheet counter-rotating pole structure. The piezoelectric ceramic sheet counter-rotating pole structure comprises a metal base sheet, a ceramic sheet, an anode silvering layer and a cathode silvering layer and further comprises a counter-rotating pole silvering layer, wherein the anode silvering layer and the counter-rotating pole silvering layer are adhesive to a front face of the ceramic sheet, an isolation belt is arranged between the anode silvering layer and the counter-rotating pole silvering layer for isolation, the cathode silvering layer is adhesive to a back face of the ceramic sheet, the cathode silvering layer is electrically connected with the counter-rotating pole silvering layer through a counter-rotating polarization through hole, and the cathode silvering layer is connected with the metal sheet through bonding glue. Through the technical scheme, the piezoelectric ceramic sheet counter-rotating pole structure can effectively settle an open circuit problem caused by aging of the bonding glue, so a product is enabled to work in a high-temperature high-moisture serious environment for a long time and has high reliability.
Description
Technical field
The utility model relates to piezoelectric ceramics field, is specifically related to a kind of piezoelectric ceramic piece reversion electrode structure.
Background technology
Existing piezoelectric ceramic piece generally adopts double-side conduction design on the market, and both positive and negative polarity is two face directions in pottery respectively, in use, are generally by one of them face binder metal face, then by metal covering as conductor, for being communicated with another polar surface.Problem that this design exists is that it is progressively aging that it coheres glue in the time that product works long hours in the adverse circumstances such as hot and humid, can cause pottery and cohering of metal to get loose, thereby cause open circuit, directly causes product function inefficacy.
Utility model content
The purpose of this utility model is to overcome the problem that prior art exists, and a kind of piezoelectric ceramic piece reversion electrode structure is provided.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
A kind of piezoelectric ceramic piece reversion electrode structure, comprise metal substrate, potsherd, anodal silver coating and negative pole silver coating, it also comprises reversion utmost point silver coating, anodal silver coating and reversion utmost point silver coating are adhered in described potsherd front, between described anodal silver coating and reversion utmost point silver coating, be provided with isolation strip isolation, described potsherd reverse side adheres to negative pole silver coating, described negative pole silver coating is by reverse-poled through hole electrical connection reversion utmost point silver coating, and described negative pole silver coating is connected with metal substrate by cohering glue.
Further, described reverse-poled through hole connection metal substrate.
The beneficial effects of the utility model are:
Adopt technical solutions of the utility model, effectively avoid cohering glue and use the aging open circuit problem causing, can make product long-term work wait under rugged environment hot and humid, reliability is high.
Brief description of the drawings
Fig. 1 is structure vertical view of the present utility model;
Fig. 2 is A-A place half-sectional view in Fig. 1.
Number in the figure explanation: 1, metal substrate, 2, potsherd, 3, anodal silver coating, 4, negative pole silver coating, 5, reversion utmost point silver coating, 6, isolation strip, 7, reverse-poled through hole, 8, cohere glue.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Shown in Fig. 1, a kind of piezoelectric ceramic piece reversion electrode structure, comprise metal substrate 1, potsherd 2, anodal silver coating 3 and negative pole silver coating 4, also comprise reversion utmost point silver coating 5, anodal silver coating 3 and reversion utmost point silver coating 5 are adhered in described potsherd 2 fronts, wherein reverse the area of utmost point silver coating 5 much smaller than the area of anodal silver coating 3, reverse utmost point silver coating 5 in the present embodiment for semicircular arc, between described anodal silver coating 3 and reversion utmost point silver coating 5, being provided with isolation strip 6 isolates, isolation strip 6 is arranged along the long arc of reversion utmost point silver coating 5, and the degree of depth of isolation strip 6 is that the electrical connection cutting off between anodal silver coating 3 and reversion utmost point silver coating 5 is advisable, described potsherd 2 reverse side adhere to negative pole silver coating 4, described negative pole silver coating 4 is by reverse-poled through hole 7 electrical connection reversion utmost point silver coatings 5, described negative pole silver coating 4 is connected with metal substrate 1 by cohering glue 8.
Further, described reverse-poled through hole 7 is electrically connected metal substrate 1.
When work, both positive and negative polarity is connected to anodal silver coating 3 and reversion utmost point silver coating 5, and after conducting, potsherd 2 produces vibration, amplify by metal substrate 1, thereby produce effectively output, and by ceramic polarity inversion design, effectively avoid cohering the aging open circuit problem causing of glue 8.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (2)
1. a piezoelectric ceramic piece reversion electrode structure, comprise metal substrate (1), potsherd (2), anodal silver coating (3) and negative pole silver coating (4), it is characterized in that, also comprise reversion utmost point silver coating (5), anodal silver coating (3) and reversion utmost point silver coating (5) are adhered in described potsherd (2) front, between described anodal silver coating (3) and reversion utmost point silver coating (5), be provided with isolation strip (6) isolation, described potsherd (2) reverse side adheres to negative pole silver coating (4), described negative pole silver coating (4) is by reverse-poled through hole (7) electrical connection reversion utmost point silver coating (5), described negative pole silver coating (4) is connected with metal substrate (1) by cohering glue (8).
2. piezoelectric ceramic piece reversion electrode structure according to claim 1, is characterized in that described reverse-poled through hole (7) electrical connection metal substrate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420159204.5U CN203787472U (en) | 2014-04-03 | 2014-04-03 | Piezoelectric ceramic sheet counter-rotating pole structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420159204.5U CN203787472U (en) | 2014-04-03 | 2014-04-03 | Piezoelectric ceramic sheet counter-rotating pole structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787472U true CN203787472U (en) | 2014-08-20 |
Family
ID=51323627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420159204.5U Expired - Lifetime CN203787472U (en) | 2014-04-03 | 2014-04-03 | Piezoelectric ceramic sheet counter-rotating pole structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787472U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633269A (en) * | 2016-02-26 | 2016-06-01 | 汉得利（常州）电子股份有限公司 | Piezoelectric patch structure |
| CN106895863A (en) * | 2017-01-13 | 2017-06-27 | 麦克思商务咨询(深圳)有限公司 | Ultrasonic sensor and the electronic installation using the ultrasonic sensor |
| CN109888087A (en) * | 2019-03-06 | 2019-06-14 | 中国船舶重工集团公司第七二六研究所 | Piezoelectric ceramic circular tube |
-
2014
- 2014-04-03 CN CN201420159204.5U patent/CN203787472U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633269A (en) * | 2016-02-26 | 2016-06-01 | 汉得利（常州）电子股份有限公司 | Piezoelectric patch structure |
| CN106895863A (en) * | 2017-01-13 | 2017-06-27 | 麦克思商务咨询(深圳)有限公司 | Ultrasonic sensor and the electronic installation using the ultrasonic sensor |
| CN109888087A (en) * | 2019-03-06 | 2019-06-14 | 中国船舶重工集团公司第七二六研究所 | Piezoelectric ceramic circular tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |