CN104900797A - Piezoelectric vibrator - Google Patents
Piezoelectric vibrator Download PDFInfo
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- CN104900797A CN104900797A CN201510315555.XA CN201510315555A CN104900797A CN 104900797 A CN104900797 A CN 104900797A CN 201510315555 A CN201510315555 A CN 201510315555A CN 104900797 A CN104900797 A CN 104900797A
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- piezoelectric vibrator
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- 239000000463 material Substances 0.000 claims abstract description 40
- 229920001971 elastomer Polymers 0.000 claims abstract description 31
- 239000000806 elastomer Substances 0.000 claims abstract description 31
- 239000010410 layer Substances 0.000 claims description 45
- 239000004020 conductor Substances 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000002966 varnish Substances 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
A piezoelectric vibrator comprises a folded layered elastomer. The elastomer comprises at least three elastic beam units which are parallel with one another. Two adjacent elastic beam units are connected through a rigid connector. The elastic beam units at two ends of the elastomer are respectively connected with a rigid mass through a rigid connector. The surface of a random elastic beam unit or each of a plurality of elastic beam units is provided with a piezoelectric material layer. Furthermore electrode leads are arranged on the piezoelectric material layer for leading out electric current. When the piezoelectric vibrator is applied, the rigid mass at a random end is fixed with a vibration source. Vibration of the vibration source is transmitted to the elastic beam unit through the mass, thereby making the elastic beam units generate first-order bending deformation vibration, second-order bending deformation vibration and first-order torsional deformation vibration. A certain proportional relation exists among the vibration frequencies of the three vibration modes, thereby generating a plurality of resonance modes in a relatively wide frequency range next to a first-order resonance frequency and expanding the frequency response range of the piezoelectric vibrator.
Description
Technical field
The application relates to piezoelectricity applied technical field, more particularly, relates to a kind of piezoelectric vibrator.
Background technology
Piezoelectric vibrator major function is that the vibrational energy in the industrial production collected, living environment is converted to electric energy, then powers for other Micro Energy Lose electronic devices and components.
To gather the vibrational energy in environment, often need vibrational energy transducer, also namely piezoelectric vibrator resonance frequency close to or equal the vibration frequency of environment, thus improve energy conversion efficiency.Inventor, by studying existing piezoelectric vibrator, finds that existing piezoelectric vibrator only exists single order mode of oscillation, and also namely its operating frequency is near first order resonance frequency, and its response range is very narrow.If vibration source frequency changes, the resonance frequency of existing piezoelectric vibrator cannot adapt to this change, and the energy conversion efficiency of piezoelectric vibrator will be caused sharply to reduce, and effectively cannot complete the conversion of energy.
Summary of the invention
In view of this, this application provides a kind of piezoelectric vibrator, narrow for solving existing piezoelectric vibrator frequency response range, when vibration source frequency changes, the problem of power conversion effectively cannot be completed.
To achieve these goals, the existing scheme proposed is as follows:
A kind of piezoelectric vibrator, comprising:
Folded laminar elastomer, described folded laminar elastomer comprises at least three spring beam unit be parallel to each other, often connected by rigid connector between adjacent two described spring beam unit, the described spring beam unit at described folded laminar elastomer two ends is all connected with rigid block by rigid connector, the surface of any one or more described spring beam unit is provided with piezoelectric material layer, and piezoelectric material layer is provided with contact conductor.
Preferably, the rigid block that connects respectively of the described spring beam unit at described folded laminar elastomer two ends is arranged in parallel.
Preferably, described folded laminar elastomer is the folded laminar elastomer of metal material, and the surface-coated described folded laminar elastomer not being arranged piezoelectric material layer has insulating varnish.
Preferably, the piezoelectric material layer that described spring beam cell surface is arranged is several piezoelectric layer regions of insulation segmentation, and each piezoelectric layer region is provided with contact conductor.
Preferably, described piezoelectric material layer is equally distributed four piezoelectric layer regions.
Preferably, the number of described spring beam unit is 3.
Preferably, described piezoelectric material layer is pasted onto the surface of described spring beam unit by thin conductive adhesive layer.
Preferably, described piezoelectric material layer is piezoelectric ceramic or piezoelectric monocrystal, its polarised direction through-thickness.
Preferably, described spring beam unit, described rigid connector and described rigid block are formed in one structure.
Preferably, described rigid block and described spring beam unit are rectangular shape.
As can be seen from above-mentioned technical scheme, the piezoelectric vibrator that the embodiment of the present application provides comprises folded laminar elastomer, this elastomer comprises at least three spring beam unit be parallel to each other, often connected by rigid connector between adjacent two described spring beam unit, the described spring beam unit at elastomer two ends is all connected with rigid block by rigid connector.The surface of any one or more spring beam unit is provided with piezoelectric material layer, and on piezoelectric material layer, is provided with contact conductor, for extracted current.When applying the piezoelectric vibrator of the application, the rigid block of any one end is fixed on vibration source, the vibration of vibration source will be passed to spring beam unit by mass, thus cause spring beam unit to produce the vibration of single order Bending Deformation, the vibration of second order Bending Deformation and the vibration of single order torsional deformation, there is certain proportion relation in the vibration frequency of three mode of oscillations, thus multiple mechanical resonance mode can be produced in frequency range wider near first order resonance frequency, effectively expand the frequency response range of piezoelectric vibrator, improve energy conversion efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only the embodiment of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of Fig. 1 a kind of piezoelectric vibrator disclosed in the embodiment of the present application;
Fig. 2 is provided with the end view of the spring beam unit of piezoelectric material layer disclosed in the embodiment of the present application;
Fig. 3 is a kind of piezoelectric material layer Region Segmentation floor map disclosed in the embodiment of the present application;
Fig. 4 is piezoelectric vibrator single order mode schematic diagram disclosed in the embodiment of the present application;
Fig. 5 is piezoelectric vibrator second-order modal schematic diagram disclosed in the embodiment of the present application;
Fig. 6 is piezoelectric vibrator three rank mode schematic diagram disclosed in the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
Known see Fig. 1-Fig. 3, disclosed in the embodiment of the present application, piezoelectric vibrator comprises:
Folded laminar elastomer 1, described folded laminar elastomer 1 comprises at least three spring beam unit 11 be parallel to each other, often connected by rigid connector 12 between adjacent two described spring beam unit 11, the described spring beam unit 11 at described folded laminar elastomer 1 two ends is all connected with rigid block 2 by rigid connector 12, the surface of any one or more described spring beam unit 11 is provided with piezoelectric material layer 13, and piezoelectric material layer 13 is provided with contact conductor 14.
Wherein, spring beam unit 11, rigid connector 12 and rigid block 2 can by integrated machine-shapings.Certainly, alternate manner composition can also be waited by welding.
Can select in the present embodiment all to arrange piezoelectric material layer 13 to each spring beam unit 11, also can select to arrange piezoelectric material layer 13 to partial elastic beam element 11.For the spring beam unit 11 arranging piezoelectric material layer 13, it can arrange piezoelectric material layer 13 in two surperficial any one up and down of spring beam unit 11 or two surfaces.
Optionally, piezoelectric material layer 13 is pasted onto the surface of described spring beam unit 11 by thin conductive adhesive layer.Piezoelectric material layer 13 can be piezoelectric ceramic or piezoelectric monocrystal, its polarised direction through-thickness.
The piezoelectric vibrator that the embodiment of the present application provides comprises folded laminar elastomer, this elastomer comprises at least three spring beam unit be parallel to each other, often connected by rigid connector between adjacent two described spring beam unit, the described spring beam unit at elastomer two ends is all connected with rigid block by rigid connector.The surface of any one or more spring beam unit is provided with piezoelectric material layer, and on piezoelectric material layer, is provided with contact conductor, for extracted current.When applying the piezoelectric vibrator of the application, the rigid block of any one end is fixed on vibration source, the vibration of vibration source will be passed to spring beam unit by mass, thus cause spring beam unit to produce the vibration of single order Bending Deformation, the vibration of second order Bending Deformation and the vibration of single order torsional deformation, there is certain proportion relation in the vibration frequency of three mode of oscillations, thus multiple mechanical resonance mode can be produced in frequency range wider near first order resonance frequency, effectively expand the frequency response range of piezoelectric vibrator, improve energy conversion efficiency.
For the ease of understanding the course of work of the application piezoelectric vibrator, be only 3 with the number of spring beam unit 11 in the present embodiment, it is that example is described, see Fig. 4-6 that rigid block 2 and spring beam unit 11 are rectangle:
For the ease of statement, we are with piezoelectric vibrator length direction for x-axis, and piezoelectric vibrator thickness direction is y-axis, and piezoelectric vibrator short transverse is z-axis, and o point is the central point of the rigid block 2 of piezoelectric vibrator.
Figure 4 shows that the first step mode vibration shape of piezoelectric vibrator, when rigid block 2 is in xz plane, when the non-zero place of x coordinate is subject to the power in z-axis direction, piezoelectric vibrator is vacillated now to the left, now to the right in xz plane, with the spring beam unit 11 marked in Fig. 4, it can produce Bending Deformation vibration, and then drives the piezoelectric material layer deformation arranged on it, thus generation current.
Figure 5 shows that the second-order Mode Shape of piezoelectric vibrator, when rigid block 2 is in xz plane, x coordinate is that 0 place is when being subject to the power in z-axis direction, piezoelectric vibrator is up-down vibration in xz plane, with the spring beam unit 11 marked in Fig. 5, it can produce the vibration of second order Bending Deformation, and then drives the piezoelectric material layer deformation arranged on it, thus generation current.
Figure 6 shows that the 3rd rank Mode Shape of piezoelectric vibrator, when rigid block 2 is in yz plane, when the non-zero place of y coordinate is subject to the power in z-axis direction, piezoelectric vibrator is vacillated now to the left, now to the right in yz plane, with the spring beam unit 11 marked in Fig. 6, it can produce the vibration of single order torsional deformation, and then drives the piezoelectric material layer deformation arranged on it, thus generation current.
For three kinds of Mode Shape of above-mentioned example, the natural frequency ratio relation of each model is roughly 1:1.4:2.1.By adjusting the volume of piezoelectric vibrator, the natural frequency of single order Mode Shape is remained near environment vibration source low-limit frequency (being about 1Hz).
Optionally, in order to ensure the elasticity of folded laminar elastomer 1, metal material can be selected as folded laminar elastomer 1.
Further, when folded laminar elastomer 1 is metal material, for the sake of security, by folded laminar elastomer 1, the surface-coated insulating varnish of piezoelectric material layer 13 can be set.
Further again, when folded laminar elastomer 1 is metal material, if be all provided with piezoelectric material layer 13 for some its upper and lower surfaces of spring beam unit 11, then can be extreme as the common electrical of upper and lower two piezoelectric material layers 13 using spring beam unit 11.
Optionally, for upper and lower two rigid blocks 2, it can be set to the structure that is parallel to each other.Certainly, for rigid block 2 and spring beam unit 11, it also can be the structure that is parallel to each other.
Shown in Fig. 3, for piezoelectric material layer 13, it can by insulation segmentation, and be divided into multiple region, shown in Fig. 3 is 4 area formats.For each piezoelectric layer region, all need to arrange contact conductor.Specific practice by carrying out electric electrode corrosion to the electrode surface of piezoelectric material layer side, can be divided into the shape shown in Fig. 3, is fixed in the surface of spring beam unit after opposite side electrode surface uniform application conducting resinl.
By carrying out Region dividing to piezoelectric material layer, the electric charge that piezoelectric material layer can be avoided to produce is partially neutralized, and causes total electrical charge to reduce, affects output current.For kind of the Mode Shape of two shown in Fig. 5 and Fig. 6, under the operating state of Fig. 5, now spring beam unit is along x length direction there will be the contrary region of stress distribution, and then the electric charge produced is on the contrary positive and negative, if do not carry out Region dividing, then there will be Partial charge by situation about mutually neutralizing.Under the operating state of Fig. 6, now spring beam unit there will be the contrary region of stress distribution along x length direction, also there will be the mutual region of stress distribution along thickness y direction, if do not carry out Region dividing, then there will be Partial charge equally by situation about mutually neutralizing.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the application.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a piezoelectric vibrator, is characterized in that, comprising:
Folded laminar elastomer, described folded laminar elastomer comprises at least three spring beam unit be parallel to each other, often connected by rigid connector between adjacent two described spring beam unit, the described spring beam unit at described folded laminar elastomer two ends is all connected with rigid block by rigid connector, the surface of any one or more described spring beam unit is provided with piezoelectric material layer, and piezoelectric material layer is provided with contact conductor.
2. piezoelectric vibrator according to claim 1, is characterized in that, the rigid block that the described spring beam unit at described folded laminar elastomer two ends connects respectively is arranged in parallel.
3. piezoelectric vibrator according to claim 1, is characterized in that, described folded laminar elastomer is the folded laminar elastomer of metal material, and the surface-coated described folded laminar elastomer not being arranged piezoelectric material layer has insulating varnish.
4. piezoelectric vibrator according to claim 1, is characterized in that, the piezoelectric material layer that described spring beam cell surface is arranged is several piezoelectric layer regions of insulation segmentation, and each piezoelectric layer region is provided with contact conductor.
5. piezoelectric vibrator according to claim 4, is characterized in that, described piezoelectric material layer is equally distributed four piezoelectric layer regions.
6. piezoelectric vibrator according to claim 1, is characterized in that, the number of described spring beam unit is 3.
7. piezoelectric vibrator according to claim 1, is characterized in that, described piezoelectric material layer is pasted onto the surface of described spring beam unit by thin conductive adhesive layer.
8. piezoelectric vibrator according to claim 1, is characterized in that, described piezoelectric material layer is piezoelectric ceramic or piezoelectric monocrystal, its polarised direction through-thickness.
9. piezoelectric vibrator according to claim 1, is characterized in that, described spring beam unit, described rigid connector and described rigid block are formed in one structure.
10. piezoelectric vibrator according to claim 1, is characterized in that, described rigid block and described spring beam unit are rectangular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510315555.XA CN104900797B (en) | 2015-06-10 | 2015-06-10 | A kind of piezoelectric vibrator |
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| CN201510315555.XA CN104900797B (en) | 2015-06-10 | 2015-06-10 | A kind of piezoelectric vibrator |
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| CN104900797A true CN104900797A (en) | 2015-09-09 |
| CN104900797B CN104900797B (en) | 2017-10-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515442A (en) * | 2015-12-04 | 2016-04-20 | 国网江西省电力科学研究院 | Socket-type piezoelectric energy harvester |
| CN107508497A (en) * | 2017-08-28 | 2017-12-22 | 佛山市顺德区中山大学研究院 | A kind of vibration energy collector of folded form |
| CN107547005A (en) * | 2017-09-14 | 2018-01-05 | 苏州迈客荣自动化技术有限公司 | A kind of novel piezo-electric ceramic actuator |
| CN109217727A (en) * | 2018-08-31 | 2019-01-15 | 北京信息科技大学 | Fold-line-shaped structure piezoelectric cantilever type vibration energy recovery device |
| CN109980992A (en) * | 2017-12-28 | 2019-07-05 | 华北电力大学 | A kind of multi-resonant vibrational energy acquisition device |
| CN112019088A (en) * | 2020-09-10 | 2020-12-01 | 重庆大学 | Paper folding coupling broadband nonlinear piezoelectric vibration power generation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1197548A (en) * | 1995-08-25 | 1998-10-28 | 三井化学株式会社 | Piezoelectric oscillator component, structure for supporting piezoelectric oscillator and method of mounting piezoelectric oscillator |
| CN1576785A (en) * | 2003-07-25 | 2005-02-09 | 精工爱普生株式会社 | Piezoelectric vibrating element, supporting structure therefor, piezoelectric vibrator and piezoelectric vibrating gyroscope |
| CN102495914A (en) * | 2011-10-31 | 2012-06-13 | 中南大学 | Design method of two-degree-of-freedom piezoelectric vibrator for realizing broadband response |
| CN103944448A (en) * | 2014-04-10 | 2014-07-23 | 南京邮电大学 | Piezoelectric cantilever beam energy harvester |
| CN104270034A (en) * | 2014-10-20 | 2015-01-07 | 吉林大学 | Curved surface piezoelectric power generation cantilever beam |
-
2015
- 2015-06-10 CN CN201510315555.XA patent/CN104900797B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1197548A (en) * | 1995-08-25 | 1998-10-28 | 三井化学株式会社 | Piezoelectric oscillator component, structure for supporting piezoelectric oscillator and method of mounting piezoelectric oscillator |
| CN1576785A (en) * | 2003-07-25 | 2005-02-09 | 精工爱普生株式会社 | Piezoelectric vibrating element, supporting structure therefor, piezoelectric vibrator and piezoelectric vibrating gyroscope |
| CN102495914A (en) * | 2011-10-31 | 2012-06-13 | 中南大学 | Design method of two-degree-of-freedom piezoelectric vibrator for realizing broadband response |
| CN103944448A (en) * | 2014-04-10 | 2014-07-23 | 南京邮电大学 | Piezoelectric cantilever beam energy harvester |
| CN104270034A (en) * | 2014-10-20 | 2015-01-07 | 吉林大学 | Curved surface piezoelectric power generation cantilever beam |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515442A (en) * | 2015-12-04 | 2016-04-20 | 国网江西省电力科学研究院 | Socket-type piezoelectric energy harvester |
| CN105515442B (en) * | 2015-12-04 | 2017-12-12 | 国网江西省电力科学研究院 | A kind of mortar type piezoelectric harvester |
| CN107508497A (en) * | 2017-08-28 | 2017-12-22 | 佛山市顺德区中山大学研究院 | A kind of vibration energy collector of folded form |
| CN107547005A (en) * | 2017-09-14 | 2018-01-05 | 苏州迈客荣自动化技术有限公司 | A kind of novel piezo-electric ceramic actuator |
| CN109980992A (en) * | 2017-12-28 | 2019-07-05 | 华北电力大学 | A kind of multi-resonant vibrational energy acquisition device |
| CN109217727A (en) * | 2018-08-31 | 2019-01-15 | 北京信息科技大学 | Fold-line-shaped structure piezoelectric cantilever type vibration energy recovery device |
| CN112019088A (en) * | 2020-09-10 | 2020-12-01 | 重庆大学 | Paper folding coupling broadband nonlinear piezoelectric vibration power generation device |
| CN112019088B (en) * | 2020-09-10 | 2024-03-15 | 重庆大学 | Paper folding coupling broadband nonlinear piezoelectric vibration power generation device |
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| CN104900797B (en) | 2017-10-03 |
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