CN102736756A - Piezoelectric transducer and assembling method of same - Google Patents
Piezoelectric transducer and assembling method of same Download PDFInfo
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- CN102736756A CN102736756A CN2011100805100A CN201110080510A CN102736756A CN 102736756 A CN102736756 A CN 102736756A CN 2011100805100 A CN2011100805100 A CN 2011100805100A CN 201110080510 A CN201110080510 A CN 201110080510A CN 102736756 A CN102736756 A CN 102736756A
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Abstract
The invention discloses a piezoelectric transducer and an assembling method of the same, and belongs to the field of sensor technology. Two electrodes of the piezoelectric transducer are positioned on the same side of a piezoelectric ceramic body, and are tightly jointed with the piezoelectric ceramic body. When the piezoelectric transducer is arranged on a touch control panel, a viscous material needs to be coated or pasted on the touch control panel or a side of the piezoelectric ceramic body which is not equipped with the electrodes. A constant pressure is applied for certain time between the touch control panel and the piezoelectric ceramic body, until the touch control panel and the piezoelectric transducer are pasted tightly. The piezoelectric transducer of the invention can directly arrange the piezoelectric ceramics body on a surface of the touch control panel in a paste way, and can enhance signal intensity collected by the piezoelectric transducer, and can enhance signal sensitivity. With a simple structure, the piezoelectric transducer is convenient to install and debug, and has a practical application value.
Description
Technical field
The present invention relates to the piezoelectric sensor technology, particularly a kind of piezoelectric transducer and installation method thereof.
Background technology
Along with the development of sensing technology, and the continuous appearance of new material, produce vibration signal during with the object surface in contact and be used as basis on location, obtained application in a big way.For example: one Chinese patent application 200480013578 just discloses a kind of touch-control input device; Position of touch is confirmed in the vibration that this device is propagated in contact panel through sensing; This vibration expression is the touch-control that is applied on the contact panel; Vibration-sensitive device is used for these vibrations of sensing such as piezoelectric sensor, through selecting size, shape, placement location and the orientation of the sensor on the contact panel, can respond the signal by touch-control or the vibration flexural wave that produces.In the ordinary course of things, piezoelectric sensor is installed in the surface of contact panel, and is as shown in Figure 1, and piezoelectric sensor sticks on the lower surface of contact panel.
As shown in Figure 2, piezoelectric sensor mainly is made up of piezoelectric ceramic body 20, and piezoelectric ceramic body 20 can be converted into corresponding electric signal with the vibration on contact panel surface; Piezoelectric sensor also comprises two electrodes, i.e. first electrode 21 and second electrode 22.In the prior art, two electrodes of piezoelectric sensor stick on the both sides up and down of piezoelectric ceramic body 20 respectively.Be pasted on the lower surface of contact panel through first electrode 21 that will be positioned at piezoelectric ceramic body 20 upsides, can make piezoelectric sensor be fixed on contact panel 1.But; In this installation method; Piezoelectric ceramic body 20 is separated with first electrode 21 with the surface of contact panel 1, and between first electrode 21 and contact panel 1 surface, is stained with colloid, between first electrode 21 and piezoelectric ceramic body 20, also is stained with colloid; Can make signal in the process of transmitting, produce certain loss, and then influence the sensitivity of signal.This shows that the structure of piezoelectric sensor and mounting means have very large influence for the measurement of signal, await further to improve.
Summary of the invention
The purpose of this invention is to provide
OnePlant piezoelectric transducer and installation method thereof,, increase the signal intensity that collects to improve the sensitivity and the precision of signal measurement.
The technical scheme that the present invention adopts is following:
The invention provides a kind of piezoelectric transducer, comprise piezoelectric ceramic body and two electrodes, wherein, two electrodes of piezoelectric sensor all are positioned at the same side of piezoelectric ceramic body, and fit tightly with piezoelectric ceramic body.
Said piezoelectric sensor is circular, and piezoelectric ceramic body can be processed by extraordinary piezoelectric ceramics, and preferably, extraordinary piezoceramic material adopts lead zirconat-titanato material.
Based on above-mentioned piezoelectric sensor, the present invention also provides a kind of installation method of piezoelectric sensor, and this method comprises:
Define paste position in advance on the contact panel surface, cohesive material is applied or be pasted on a not side of installing electrodes of contact panel or piezoelectric ceramic body;
Between contact panel and piezoelectric ceramic body, apply the constant pressure of certain hour, until contact panel and piezoelectric sensor are closely pasted.
Above-mentioned constant compression force can adopt the method for constant weight or pressure to realize, the acquisition mode of this constant force can obtain through pneumatic or the mode of surging, and also can obtain through modes such as mounting spring on lever.
Piezoelectric sensor provided by the present invention; Two electrodes all are arranged on the same side of piezoelectric ceramic body, can directly piezoelectric ceramic body be installed in the contact panel surface through the mode of pasting, not only can increase the signal intensity that piezoelectric sensor collects; Improve the sensitivity of signal; And simple in structure, be convenient to the installation and the debugging of piezoelectric sensor, have actual application value.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further.
Figure l is that the position of piezoelectric sensor and contact panel concerns synoptic diagram in the prior art;
Fig. 2 is the cross-sectional view of piezoelectric sensor in the prior art;
Fig. 3 is the cross-sectional view of piezoelectric transducer according to the invention;
Fig. 4 is the installation method process flow diagram of piezoelectric transducer of the present invention on touch screen.
Description of reference numerals:
The 1-contact panel; The 20-piezoelectric ceramic body; 21-first electrode; 22-second electrode.
Embodiment
The piezoelectricity contactor control device that arrives involved in the present invention comprises contact panel, piezoelectric sensor and control circuit at least.Piezoelectric sensor is installed in the lower surface of contact panel through the mode of pasting, and when object contact contact panel, the surface of contact panel can produce vibration; Piezoelectric sensor is exported corresponding electric signal after receiving the vibration on contact panel surface; Control circuit is handled the electric signal of piezoelectric sensor output, obtains the position of touch of object on contact panel.
Piezoelectric sensor mainly comprises piezoelectric ceramic body 20, also comprises two electrodes, i.e. first electrode 21 and second electrode 22.In embodiments of the present invention; Two electrodes of piezoelectric sensor are arranged on the same side of piezoelectric ceramic body 20 through the mode of pasting, and as shown in Figure 3, first electrode 21 and second electrode 22 all stick on the same side of piezoelectric ceramic body 20; Like this; When piezoelectric sensor is installed to contact panel 1 surface, just can makes the upside of the piezoelectric ceramic body 20 of piezoelectric sensor closely be contacted with contact panel 1, thereby strengthen the signal intensity of gathering; And the downside of piezoelectric ceramic body 20 is pasted with the upside of first electrode 21 and second electrode 22 respectively, makes the downside of first electrode 21 and second electrode 22 be positioned at open relatively space, thereby is convenient to the installation and the debugging of sensor, also can guarantee better precision.
Here, the piezoelectric ceramic body that is adopted can be circle, also can adopt strip, square and different shape.
The mode that above-mentioned piezoelectric sensor is installed to contact panel surface has multiple, and preferred mounting means is through gummed or bonding way, and these two kinds of bonding method technologies are ripe, are easy to produce.And, paste piezoelectric sensor and contact panel through cohesive material, can make the interval between contact panel and the piezoelectric sensor less, thereby guarantee the precision of signal measurement.
Discover that the spacing distance between contact panel and the piezoelectric sensor is significant for the influence of signal effect, the bigger then influence to signal is big more at interval, and therefore, the unanimity of cohesive material thickness also is the basis that guarantees measuring accuracy.The present invention gets a desired effect and performance in order to guarantee, and when bonding piezoelectric sensor, has adopted weighing apparatus to connect the consistance that adhering method guarantees colloid thickness.
The installation method of piezoelectric sensor according to the invention on contact panel is illustrated in figure 4 as:
Step 01: define paste position in advance on the contact panel surface;
Step 02: cohesive material is applied or be pasted on a not side of installing electrodes of contact panel or piezoelectric ceramic body;
Step 03: between contact panel and piezoelectric ceramic body, apply the constant pressure of certain hour, until contact panel and piezoelectric sensor are closely pasted.
Said piezoelectric sensor can be uniformly distributed in the outside surface or the inside surface of contact panel.
Above-mentioned constant compression force can adopt the method for constant weight or pressure to realize; The acquisition mode of this constant force can obtain through pneumatic or the mode of surging, and also can obtain through modes such as mounting spring on lever, under this mode; When lever contact piezoelectric sensor; Spring on the lever is under pressure deformation can take place, and can obtain constant compression force through making spring that fixedly deformation take place, and concrete situation can be selected and adjust according to actual needs.
Adopt piezoelectric sensor of the present invention compared with prior art, have strong, the highly sensitive advantage of the signal of reception; Can simplified control circuit to the complexity of signal Processing; Have actual application value, and be convenient to debugging, expanded the field of the invention and purposes greatly.
Though minority preferred embodiment of the present invention only has been described, its meaning and unrestricted scope of the present invention, applicability and configuration here.On the contrary, the detailed description to embodiment can make those skilled in the art be able to implement.Will be understood that not departing under the definite spirit and scope of the invention situation of appended claims, can make suitable change and modification some details.
Claims (8)
1. a piezoelectric transducer comprises piezoelectric ceramic body and two electrodes, and it is characterized in that: said two electrodes are positioned at the same side of piezoelectric ceramic body, and fit tightly with piezoelectric ceramic body.
2. piezoelectric transducer according to claim 1 is characterized in that: said piezoelectric sensor is for circular.
3. piezoelectric transducer according to claim 1 is characterized in that: said piezoelectric ceramic body is extraordinary piezoelectric ceramics.
4. piezoelectric transducer according to claim 3 is characterized in that: said extraordinary piezoelectric ceramics adopts lead zirconat-titanato material.
5. the installation method of a piezoelectric sensor is characterized in that, two electrodes of said piezoelectric sensor are positioned at the same side of piezoelectric ceramic body, and fits tightly with piezoelectric ceramic body; This method comprises: the contact panel surface at piezoelectric sensor to be installed defines paste position in advance, and cohesive material is applied or be pasted on a not side of installing electrodes of contact panel or piezoelectric ceramic body;
Between contact panel and piezoelectric ceramic body, apply the constant pressure of certain hour, until contact panel and piezoelectric sensor are closely pasted.
6. method according to claim 5 is characterized in that, said piezoelectric sensor evenly is mounted on the outside surface or the inside surface of contact panel.
7. method according to claim 5 is characterized in that said constant pressure obtains through pneumatic or the mode of surging.
8. method according to claim 5 is characterized in that, said constant pressure obtains through mounting spring mode on lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100805100A CN102736756A (en) | 2011-03-31 | 2011-03-31 | Piezoelectric transducer and assembling method of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100805100A CN102736756A (en) | 2011-03-31 | 2011-03-31 | Piezoelectric transducer and assembling method of same |
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| CN102736756A true CN102736756A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100805100A Pending CN102736756A (en) | 2011-03-31 | 2011-03-31 | Piezoelectric transducer and assembling method of same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826190A (en) * | 2014-02-13 | 2014-05-28 | 海鹰企业集团有限责任公司 | Small-sized array element and low-sidelobe high-frequency acoustic array composed of array elements |
| CN106250028A (en) * | 2016-07-27 | 2016-12-21 | 上海与德通讯技术有限公司 | Operational approach and terminal unit |
| CN108697241A (en) * | 2015-12-30 | 2018-10-23 | 德沃特奥金有限公司 | Sleep with sensor or dependence furniture |
| CN109656398A (en) * | 2017-10-11 | 2019-04-19 | 联阳半导体股份有限公司 | The operating method of touch device and touch device |
| CN112867913A (en) * | 2018-10-10 | 2021-05-28 | 约阿内研究有限责任公司 | Piezoelectric sensor |
| WO2021203929A1 (en) * | 2020-04-09 | 2021-10-14 | 江西欧迈斯微电子有限公司 | Vibration module and electronic apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1350367A (en) * | 2000-07-25 | 2002-05-22 | Tdk株式会社 | Piezoelectric resonator, piezoelectric resonator device and method for manufacturing the same |
| CN1481284A (en) * | 2000-12-19 | 2004-03-10 | ̩ | Method for making multielement acoustic probe using metallised and ablated polymer as ground plane |
| US20060255695A1 (en) * | 2003-10-01 | 2006-11-16 | Axel Endriss | Piezo actuator |
| CN101919079A (en) * | 2007-07-03 | 2010-12-15 | 皇家飞利浦电子股份有限公司 | Thin film detector for presence detection |
-
2011
- 2011-03-31 CN CN2011100805100A patent/CN102736756A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1350367A (en) * | 2000-07-25 | 2002-05-22 | Tdk株式会社 | Piezoelectric resonator, piezoelectric resonator device and method for manufacturing the same |
| CN1481284A (en) * | 2000-12-19 | 2004-03-10 | ̩ | Method for making multielement acoustic probe using metallised and ablated polymer as ground plane |
| US20060255695A1 (en) * | 2003-10-01 | 2006-11-16 | Axel Endriss | Piezo actuator |
| CN101919079A (en) * | 2007-07-03 | 2010-12-15 | 皇家飞利浦电子股份有限公司 | Thin film detector for presence detection |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826190A (en) * | 2014-02-13 | 2014-05-28 | 海鹰企业集团有限责任公司 | Small-sized array element and low-sidelobe high-frequency acoustic array composed of array elements |
| CN108697241A (en) * | 2015-12-30 | 2018-10-23 | 德沃特奥金有限公司 | Sleep with sensor or dependence furniture |
| CN106250028A (en) * | 2016-07-27 | 2016-12-21 | 上海与德通讯技术有限公司 | Operational approach and terminal unit |
| CN109656398A (en) * | 2017-10-11 | 2019-04-19 | 联阳半导体股份有限公司 | The operating method of touch device and touch device |
| CN109656398B (en) * | 2017-10-11 | 2022-03-29 | 联阳半导体股份有限公司 | Touch device and operation method thereof |
| CN112867913A (en) * | 2018-10-10 | 2021-05-28 | 约阿内研究有限责任公司 | Piezoelectric sensor |
| WO2021203929A1 (en) * | 2020-04-09 | 2021-10-14 | 江西欧迈斯微电子有限公司 | Vibration module and electronic apparatus |
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Application publication date: 20121017 |