CN101350395B - Piezoelectric ceramic sensor and manufacturing method thereof - Google Patents
Piezoelectric ceramic sensor and manufacturing method thereof Download PDFInfo
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- CN101350395B CN101350395B CN200810141819.4A CN200810141819A CN101350395B CN 101350395 B CN101350395 B CN 101350395B CN 200810141819 A CN200810141819 A CN 200810141819A CN 101350395 B CN101350395 B CN 101350395B
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Abstract
The invention provides a piezoelectric ceramic transducer and a method for preparing the transducer, wherein each layer of electrodes of the piezoelectric ceramic transducer comprises left electrodes and right electrodes, the left electrodes and the right electrodes on the two adjacent layers of electrodes are mutually interlaced and are electrically connected through through-holes which are arranged on ceramic plates between the left and the right electrodes. Compared with the prior art, the electrical connecting structure of the electrodes of the piezoelectric ceramic transducer has special design and good practicality.
Description
Technical field
The present invention relates to a kind of piezoceramic transducer and preparation method thereof, relate in particular to electrode structure of a kind of piezoceramic transducer and preparation method thereof.
Background technology
Potsherd has inverse piezoelectric effect, promptly under the effect of extra electric field, mechanical deformation takes place.Utilize this characteristic, potsherd can be used for making piezoelectric transducer, as piezo-electric loudspeaker, piezoelectric vibrator or the like.
The relevant better simply piezoceramic transducer of existing structure, as shown in Figure 4, comprise substrate 41, two potsherds (42a, 42b), be fitted in fully on the upper and lower surface of substrate being printed with elargol electrode 410, two potsherds that impose on two potsherd electric fields on the upper and lower surface of substrate 41.The end that each electrode extends to substrate links to each other with external circuit with realization.This kind electrode electric connection structure, to the piezoceramic transducer of the potsherd structure that only has one deck or two-layer small number, operation is simple, easily realize.If but for multi-layer ceramic chip (for example more than three or three), then need multi layer substrate, and impose on end that each electrode on each potsherd all extends to substrate and link to each other with external circuit realizing, operation bothering very much like this, and is difficult to realization.
Therefore, be necessary to study a kind of piezoceramic transducer with new construction.
Summary of the invention
The technical problem that the present invention need solve is to overcome above-mentioned deficiency, provides a kind of its electrode electric connection structure design unique and practical piezoceramic transducer.
According to the above-mentioned technical problem that needs solution, the invention provides a kind of piezoceramic transducer, the n+1 layer electrode that it comprises the interlaced n layer potsherd of folding mutually and applies electric field for each potsherd, described each layer potsherd with center line set up into the opposite two parts of polarised direction separately, described each layer electrode comprises left electrode and the right electrode that half-and-half separates with described center line, described each left electrode is provided with first connecting portion of electrode protrusion to the right, described each right electrode is provided with second connecting portion of electrode protrusion left, the position of first connecting portion and second connecting portion is interlaced on the adjacent two layers electrode, and, the position alignment of last layer first connecting portion and following one deck second connecting portion and the through hole electric connection that is provided with by the potsherd between them, the through hole that last layer second connecting portion is aimed at following one deck first connecting portion and also is provided with by the potsherd between them electrically connects.
The present invention also provides a kind of manufacture method of this piezoceramic transducer, and the step of this manufacture method comprises:
A, quantity is provided is n layer potsherd, each layer potsherd with center line set up into the opposite two parts of polarised direction separately, each potsherd comprises front surface and anti-surface;
B, on the potsherd front surface of the bottom, use elargol printing one deck left side as claimed in claim 1, right electrode, another potsherd again superposes on the front surface of this potsherd, then, repeat the operation of the above-mentioned potsherd that prints electrode and superpose, according to this sequential loop be operated to top layer potsherd and each potsherd is superimposed and its front surface on also be printed with electrode, when printing electrode, the position of first connecting portion and second connecting portion is interlaced on the adjacent two layers electrode, and, last layer first connecting portion is aimed at following one deck second connecting portion, and last layer second connecting portion is aimed at following one deck first connecting portion;
C, on the position corresponding, the anti-surface of bottom potsherd, offer two through hole respectively with connecting portion, two through hole run through respectively each potsherd and on connecting portion first, second connecting portion on top layer potsherd front surface;
D, on the anti-surface of bottom potsherd, use elargol to print left and right electrode, when printing electrode, the connecting portion in the above-mentioned through hole of elargol injection to the top layer potsherd front surface, so that each layer electrode is electrical connected according to claim 1.
The present invention also provides the another kind of manufacture method of this piezoceramic transducer, and the step of this manufacture method comprises:
A, quantity is provided is n layer potsherd, each layer potsherd with center line set up into the opposite two parts of polarised direction separately, each potsherd comprises front surface and anti-surface;
B, on each potsherd, offer respectively the two through hole of aiming at;
C, on the potsherd front surface of the bottom, use elargol printing one deck left side as claimed in claim 1, right electrode, another potsherd again superposes on the front surface of this potsherd, then, repeat the operation of the above-mentioned potsherd that prints electrode and superpose, according to this sequential loop be operated to top layer potsherd and each potsherd is superimposed and its front surface on also be printed with electrode, then, on the anti-surface of bottom potsherd, use an elargol printing left side again, right electrode, when printing electrode, on the adjacent two layers electrode in interlaced and corresponding with described the two through hole respectively and above-mentioned through hole of elargol injection in the position of first connecting portion and second connecting portion, so that each layer electrode is electrical connected according to claim 1.
Compared with prior art, the design of the electric connection structure of piezoceramic transducer electrode of the present invention is unique, and practical.
Description of drawings
Fig. 1 is the three-dimensional exploded view of embodiment of the present invention piezoceramic transducer;
Fig. 2 is the three-dimensional combination figure of embodiment of the present invention piezoceramic transducer;
Fig. 3 is the cutaway view of A-A direction among Fig. 2;
Fig. 4 is the three-dimensional exploded view of the existing piezoceramic transducer of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and embodiments.
As depicted in figs. 1 and 2, embodiment of the present invention piezoceramic transducer 100 comprises interlaced stacked 6 layers of rectangular ceramic sheet 1 and 7 layers of electrode 2.
Each potsherd 1 shape, measure-alike, comprise front surface 10 and relative with front surface anti-surperficial 11, each layer potsherd sets up into the opposite two parts of polarised direction separately with its center line, is provided with two through holes 12 on the centre symmetry line of each potsherd, and two through holes of each potsherd are aimed at respectively.
Each layer electrode 2 comprises left electrode 21 and right electrode 22, and left electrode 21 and right electrode 22 half-and-half separate with respect to potsherd 1 surface, and promptly the center line with respect to potsherd separates.On each left electrode 21, be provided with the first connecting portion 2a of electrode 22 protrusions to the right, each right electrode 22 is provided with the second connecting portion 2b of electrode 21 protrusions left, the position of first connecting portion and second connecting portion is interlaced on the adjacent two layers electrode, promptly, on the last layer electrode on the position of first connecting portion and second connecting portion and the following one deck electrode position of first connecting portion and second connecting portion interlaced, and, the position alignment of last layer first connecting portion and following one deck second connecting portion, last layer second connecting portion is aimed at following one deck first connecting portion, as shown in Figure 1, two of position alignment groups of connecting portions are corresponding with two groups of through holes respectively, aim at.
It is as follows in the electrical connection of the electrode on each potsherd to apply electric field: first connecting portion of last layer electrode and second connecting portion of following one deck electrode electrically connect by the through hole on the potsherd between them 12; Second connecting portion of last layer electrode and first connecting portion of following one deck electrode also electrically connect by the through hole on the potsherd between them 12.Also be provided with conducting end 3 on the electrode of top layer potsherd, conducting end 3 realizes linking to each other with external circuit.
The manufacture method of embodiment of the present invention piezoceramic transducer, the step of this manufacture method comprises:
A, provide 6 layers of above-mentioned potsherd 1, each potsherd to comprise front surface 10 and anti-surface 11;
B, choosing a potsherd arbitrarily is bottom potsherd, on the front surface of the potsherd of this bottom, use the above-mentioned left side of elargol printing one deck, right electrode, another potsherd again superposes on the front surface of this potsherd, then, repeat the operation of the above-mentioned potsherd that prints electrode and superpose, sequential loop is operated to top layer potsherd (being last one deck potsherd) and also is printed with electrode with each potsherd on superimposed and its front surface according to this, when printing electrode, the position of first connecting portion and second connecting portion is interlaced on the adjacent two layers electrode, and, last layer first connecting portion is aimed at following one deck second connecting portion, and last layer second connecting portion is aimed at following one deck first connecting portion;
C, on the corresponding position of anti-surperficial 11 two groups of connecting portions having aimed at the position of bottom potsherd, offer two through hole respectively, two through hole run through respectively each potsherd and on connecting portion first, second connecting portion on top layer potsherd front surface;
D, on the anti-surface of bottom potsherd, use elargol to print left and right electrode, when printing electrode, elargol can injection the connecting portion to the top layer potsherd front surface in the above-mentioned through hole so that it is as follows to impose on the electrical connection of each layer electrode of each potsherd electric field: first connecting portion of last layer electrode and second connecting portion of following one deck electrode pass through the electric connection of the through hole on the potsherd between them; Second connecting portion of last layer electrode and first connecting portion of following one deck electrode also electrically connect by the through hole on the potsherd between them, as shown in Figure 3.
The another kind of manufacture method of embodiment of the present invention piezoceramic transducer, the step of this manufacture method comprises:
A, quantity is provided is 6 layers above-mentioned potsherd 1;
B, on the center line on each potsherd, offer respectively the two through hole of aiming at;
C, choosing a potsherd arbitrarily is bottom potsherd, on the potsherd front surface of this bottom, use elargol printing one deck left side as claimed in claim 1, right electrode, another potsherd again superposes on the front surface of this potsherd, then, repeat the operation of the above-mentioned potsherd that prints electrode and superpose, according to this sequential loop be operated to top layer potsherd and each potsherd is superimposed and its front surface on also be printed with electrode, then, on the anti-surface of bottom potsherd, use an elargol printing left side again, right electrode, when printing electrode, the position of first connecting portion and second connecting portion is interlaced and respectively in the above-mentioned through hole of corresponding elargol injection with described two through hole on the adjacent two layers electrode, so that it is as follows to impose on the electrical connection of each layer electrode of each potsherd electric field: first connecting portion of last layer electrode and second connecting portion of following one deck electrode pass through the electric connection of the through hole on the potsherd between them; Second connecting portion of last layer electrode and first connecting portion of following one deck electrode also electrically connect by the through hole on the potsherd between them, as shown in Figure 3.
The electric connection structure design of piezoceramic transducer electrode of the present invention is unique, and practical.
Above-described only is embodiments of the present invention; should be understood that at this; the quantity of potsherd of the present invention is not limited to 6 layers, also can be 1 layer, 2 layers; 4 layers; 8 layers or the like, for the person of ordinary skill of the art, without departing from the inventive concept of the premise; can also make improvement, but these all belong to protection scope of the present invention.
Claims (5)
1. piezoceramic transducer, comprise interlaced folded mutually n layer potsherd and apply the n+1 layer electrode of electric field for each potsherd, it is characterized in that: described each layer potsherd with center line set up into the opposite two parts of polarised direction separately, described each layer electrode comprises left electrode and the right electrode that half-and-half separates with described center line, described each left electrode is provided with first connecting portion of electrode protrusion to the right, described each right electrode is provided with second connecting portion of electrode protrusion left, the position of first connecting portion and second connecting portion is interlaced on the adjacent two layers electrode, and, the position alignment of last layer first connecting portion and following one deck second connecting portion and the through hole electric connection that is provided with by the potsherd between them, the through hole that last layer second connecting portion is aimed at following one deck first connecting portion and also is provided with by the potsherd between them electrically connects.
2. piezoceramic transducer according to claim 1 is characterized in that: the connecting portion that links to each other is positioned at same straight line with the through hole that is connected them.
3. piezoceramic transducer according to claim 1 and 2 is characterized in that: described n 〉=1.
4. the manufacture method of a piezoceramic transducer, it is characterized in that: the step of described manufacture method comprises:
A, quantity is provided is n layer potsherd, each layer potsherd with center line set up into the opposite two parts of polarised direction separately, each potsherd comprises front surface and anti-surface;
B, on the potsherd front surface of the bottom, use elargol printing one deck left side as claimed in claim 1, right electrode, another potsherd again superposes on the front surface of this potsherd, then, repeat the operation of the above-mentioned potsherd that prints electrode and superpose, according to this sequential loop be operated to top layer potsherd and each potsherd is superimposed and its front surface on also be printed with electrode, when printing electrode, the position of first connecting portion and second connecting portion is interlaced on the adjacent two layers electrode, and, last layer first connecting portion is aimed at following one deck second connecting portion, and last layer second connecting portion is aimed at following one deck first connecting portion;
C, on the position corresponding, the anti-surface of bottom potsherd, offer two through hole respectively with connecting portion, two through hole run through respectively each potsherd and on connecting portion first, second connecting portion on top layer potsherd front surface;
D, on the anti-surface of bottom potsherd, use elargol to print left and right electrode, when printing electrode, the connecting portion in the above-mentioned through hole of elargol injection to the top layer potsherd front surface, so that each layer electrode is electrical connected according to claim 1.
5. the manufacture method of a piezoceramic transducer, it is characterized in that: the step of described manufacture method comprises:
A, quantity is provided is the potsherd of n layer, each layer potsherd with center line set up into the opposite two parts of polarised direction separately, each potsherd comprises front surface and anti-surface;
B, be provided with two through holes on the center line of each potsherd, two through holes of each potsherd are aimed at respectively;
C, on the potsherd front surface of the bottom, use elargol printing one deck left side as claimed in claim 1, right electrode, another potsherd again superposes on the front surface of this potsherd, then, repeat the operation of the above-mentioned potsherd that prints electrode and superpose, according to this sequential loop be operated to top layer potsherd and each potsherd is superimposed and its front surface on also be printed with electrode, then, on the anti-surface of bottom potsherd, use an elargol printing left side again, right electrode, when printing electrode, on the adjacent two layers electrode in interlaced and corresponding with described the two through hole respectively and above-mentioned through hole of elargol injection in the position of first connecting portion and second connecting portion, so that each layer electrode is electrical connected according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141819.4A CN101350395B (en) | 2008-09-05 | 2008-09-05 | Piezoelectric ceramic sensor and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141819.4A CN101350395B (en) | 2008-09-05 | 2008-09-05 | Piezoelectric ceramic sensor and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN101350395A CN101350395A (en) | 2009-01-21 |
| CN101350395B true CN101350395B (en) | 2010-06-02 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102611967B (en) * | 2011-12-09 | 2014-07-16 | 张家港市玉同电子科技有限公司 | Bicrystal piezoelectric ceramic wafer and bicrystal piezoelectric ceramic loudspeaker made by same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201042075Y (en) * | 2007-04-29 | 2008-03-26 | 瑞声声学科技(常州)有限公司 | piezoelectric speaker |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201042075Y (en) * | 2007-04-29 | 2008-03-26 | 瑞声声学科技(常州)有限公司 | piezoelectric speaker |
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| CN101350395A (en) | 2009-01-21 |
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Owner name: AAC OPTOELECTRONICS TECHNOLOGIES (CHANGZHOU) CO., Free format text: FORMER OWNER: AAC ACOUSTIC TECHNOLOGIES (CHANGZHOU) CO., LTD. Effective date: 20120320 Owner name: AAC PRECISION MANUFACTURING TECHNOLOGIES (CHANGZHO Effective date: 20120320 |
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Free format text: CORRECT: ADDRESS; FROM: 213167 CHANGZHOU, JIANGSU PROVINCE TO: 223600 CHANGZHOU, JIANGSU PROVINCE |
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Effective date of registration: 20120320 Address after: 223600 Changzhou, Jiangsu City, Wujin province summer town villa Co-patentee after: AAC MODULE TECHNOLOGIES (CHANGZHOU) Co.,Ltd. Patentee after: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Co-patentee after: AAC Acoustic Technologies (Changzhou) Co.,Ltd. Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167 Patentee before: AAC Acoustic Technologies (Changzhou) Co.,Ltd. |
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Addressee: Zhang Yong Document name: Notification of Passing Examination on Formalities |
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Effective date of registration: 20181212 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Co-patentee after: AAC MODULE TECHNOLOGIES (CHANGZHOU) Co.,Ltd. Patentee after: AAC TECHNOLOGIES Pte. Ltd. Co-patentee after: AAC Acoustic Technologies (Changzhou) Co.,Ltd. Address before: 223600 Nanxia Shu Town, Wujin District, Changzhou City, Jiangsu Province Co-patentee before: AAC MODULE TECHNOLOGIES (CHANGZHOU) Co.,Ltd. Patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Co-patentee before: AAC Acoustic Technologies (Changzhou) Co.,Ltd. |
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Granted publication date: 20100602 |
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