CN106341055B - Vibration energy collector - Google Patents
Vibration energy collector Download PDFInfo
- Publication number
- CN106341055B CN106341055B CN201610821822.5A CN201610821822A CN106341055B CN 106341055 B CN106341055 B CN 106341055B CN 201610821822 A CN201610821822 A CN 201610821822A CN 106341055 B CN106341055 B CN 106341055B
- Authority
- CN
- China
- Prior art keywords
- girder
- auxiliary
- vibration energy
- auxiliary girder
- piezoelectric cantilever
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 14
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000010355 oscillation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
- H02N2/188—Vibration harvesters adapted for resonant operation
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a kind of vibration energy collectors, including piezoelectric cantilever and mass block, the piezoelectric cantilever includes the girder being laterally arranged, multiple the first longitudinally disposed auxiliary girders and multiple the second longitudinally disposed auxiliary girders, one end of the girder is fixing end, the other end of the girder is free end, the mass block is fixed on the free end of girder, multiple first auxiliary girder intervals are arranged and are fixed on the side of girder, and multiple second auxiliary girder intervals are arranged and are fixed on the other side of girder.Above-mentioned vibration energy collector, multiple first auxiliary girders and the second auxiliary girder are provided on the girder of piezoelectric cantilever, and each auxiliary girder has respective resonant frequency, increases the resonant frequency point of vibration energy collector.And each auxiliary girder, when vibrating, the voltage attenuation of resonant frequency point both sides is slow, to increase bandwidth.Auxiliary girder also correspondingly increases electricity production area simultaneously, improves output electric energy, solves the problems, such as that Frequency point energy density is low.
Description
Technical field
The present invention relates to technical field, more particularly to a kind of vibration energy collector.
Background technology
As energy problem is more and more severeer, the system that the environmental energy of seeking can to acquire surrounding is converted into electric energy becomes
One big hot spot of people's research.Mechanical oscillation in environment are ubiquitous, it is not influenced by geographical location and weather, and
In the place that many is difficult to enter with the presence of vibration source, therefore the acquisition of vibrational energy is more convenient, before having good development
Scape.Vibration energy collector is a kind of device converting the mechanical energy for vibrating generation to electric energy.Traditional vibrational energy acquisition
Device has the following problems：(1) resonant frequency point possessed is single, is unfavorable for collection of energy；(2) narrower bandwidth at resonant frequency,
More energy can not be collected into；(3) Frequency point energy density is relatively low.
Invention content
Based on this, the invention reside in overcoming the deficiencies of existing technologies, a kind of vibration energy collector is provided, energy is conducive to
Collection.
Its technical solution is as follows：
A kind of vibration energy collector, including piezoelectric cantilever and mass block, the piezoelectric cantilever include laterally being arranged
Girder, multiple the first longitudinally disposed auxiliary girders and multiple the second longitudinally disposed auxiliary girders, one end of the girder is fixing end,
The other end of the girder is free end, and the mass block is fixed on the free end of girder, multiple first auxiliary girder intervals
It is arranged and is fixed on the side of girder, multiple second auxiliary girder intervals are arranged and are fixed on the other side of girder.
The number of first auxiliary girder is equal with the number of the second auxiliary girder in one of the embodiments, and described
One auxiliary girder and the second auxiliary girder correspond, corresponding first auxiliary girder it is identical with the second auxiliary girder shape and with girder for symmetrical axial symmetry
Setting.
Corresponding first auxiliary girder is equal with the second auxiliary girder quality in one of the embodiments,.
The piezoelectric cantilever further includes longitudinally disposed mounting rail in one of the embodiments, and the mounting rail is set
It sets on the free end of girder, the mass block is fixed on mounting rail.
The mass block is two in one of the embodiments, and two mass blocks are separately fixed at the both ends of mounting rail.
The number of first auxiliary girder is 4-6 roots in one of the embodiments, and the number of second auxiliary girder is 4-6
Root.
The vibration energy collector further includes identical with the piezoelectric cantilever shape in one of the embodiments,
Metal substrate, the piezoelectric cantilever are fixed on metal substrate.
The piezoelectric cantilever is fixed on by conducting resinl on metal substrate in one of the embodiments,.
The metal substrate is made of brass in one of the embodiments,.
The piezoelectric cantilever is PZT piezoelectric ceramic pieces in one of the embodiments,.
The advantages of below to preceding solution or principle illustrate：
Above-mentioned vibration energy collector applies external force to piezoelectric cantilever, can cause the direct piezoelectric effect of piezoelectric cantilever
To generate electric current.Under the auxiliary of mass block, the time of vibration and Oscillation Amplitude of piezoelectric cantilever increase, resonant frequency drop
It is low, to generate more electric energy.Multiple first auxiliary girders and the second auxiliary girder, each auxiliary girder are provided on the girder of piezoelectric cantilever
All there is respective resonant frequency, increase the resonant frequency point of vibration energy collector.And each auxiliary girder is vibrating
When, the voltage attenuation of resonant frequency point both sides is slow, to increase bandwidth.Auxiliary girder also correspondingly increases electricity production area simultaneously,
Output electric energy is improved, solves the problems, such as that Frequency point energy density is low.When the vibration of each frequency source in environment loads simultaneously
When to above-mentioned vibration energy collector, vibration energy collector can collect the energy of different frequency, the energy of different frequency
It is overlapped mutually, is conducive to the collection of energy.
Description of the drawings
Fig. 1 is the structural schematic diagram of the vibration energy collector described in the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the vibration energy collector described in the embodiment of the present invention two.
Reference sign：
1, piezoelectric cantilever, 2, mass block, 10, girder, the 11, first auxiliary girder, the 12, second auxiliary girder, 13, mounting rail.
Specific implementation mode
The embodiment of the present invention is described in detail below：
Embodiment one
As shown in Figure 1, the vibration energy collector described in the present embodiment, including piezoelectric cantilever 1 and mass block 2, it is described
Piezoelectric cantilever 1 includes the girder 10 being laterally arranged, multiple the first longitudinally disposed auxiliary girders 11 and multiple longitudinally disposed second
One end of auxiliary girder 12, the girder 10 is fixing end, and the other end of the girder 10 is free end, and the mass block 2 is fixed on
On the free end of girder 10, the multiple interval of first auxiliary girder 11 settings and the side for being fixed on girder 10, multiple described second
The interval of auxiliary girder 12 is arranged and is fixed on the other side of girder 10.
Above-mentioned vibration energy collector applies external force to piezoelectric cantilever 1, the positive piezoelectricity of piezoelectric cantilever 1 can be caused to imitate
It should be to generate electric current.Under the auxiliary of mass block 2, the time of vibration and Oscillation Amplitude of piezoelectric cantilever 1 increase, resonant frequency
It reduces, to generate more electric energy.11 and second auxiliary girder of multiple first auxiliary girders is provided on the girder 10 of piezoelectric cantilever 1
12, each auxiliary girder has respective resonant frequency, increases the resonant frequency point of vibration energy collector.And each auxiliary girder
When vibrating, the voltage attenuation of resonant frequency point both sides is slow, to increase bandwidth.Auxiliary girder also correspondingly increases simultaneously
Area is produced electricity, output electric energy is improved, solves the problems, such as that Frequency point energy density is low.When the vibration of each frequency source in environment
When being loaded into above-mentioned vibration energy collector simultaneously, vibration energy collector can collect the energy of different frequency, different frequencies
The energy of rate is overlapped mutually, and is conducive to the collection of energy.
Wherein, the number of first auxiliary girder 11 is equal with the number of second auxiliary girder 12, is 4, and described first
Auxiliary girder 11 and the second auxiliary girder 12 correspond, and corresponding first auxiliary girder 11 is identical as 12 shape of the second auxiliary girder and is pair with girder 10
Claim axial symmetry setting.This structure is more stable in vibration, can generate more electric energy, while manufacture life of being also more convenient for
Production.Preferably, corresponding first auxiliary girder 11 is equal with 12 mass of the second auxiliary girder, can further increase stability when vibration.
Piezoelectric cantilever 1 described in the present embodiment further includes longitudinally disposed mounting rail 13, and the setting of the mounting rail 13 exists
On the free end of girder 10, the mass block 2 is fixed on mounting rail 13.Mounting rail 13 facilitates the installation of mass block 2, and
The width that girder 10 can have been correspondingly reduced, to reduce the resonant frequency of vibration energy collector.
In the present embodiment, the vibration energy collector further includes metal identical with 1 shape of the piezoelectric cantilever
Substrate, the piezoelectric cantilever 1 are fixed on metal substrate.Metal substrate can play the role of protecting piezoelectric cantilever 1, keep away
It is broken to exempt from piezoelectric cantilever 1.An electrode (not shown) is respectively equipped on piezoelectric cantilever 1 and metal substrate, for drawing electricity
Stream.
The piezoelectric cantilever 1 is fixed on by conducting resinl on metal substrate, be conductively connected being more easy to using conducting resinl
In operation, production efficiency can be improved.Metal substrate described in the present embodiment is made of brass, can increase piezoelectric cantilever 1
Flexibility.The piezoelectric cantilever 1 is PZT piezoelectric ceramic pieces, has higher piezoelectric modulus.
Embodiment two
The vibration energy collector described in vibration energy collector and embodiment described in embodiment two difference lies in：?
In embodiment two, the mass block 2 is two, and two mass blocks 2 are separately fixed at the both ends of mounting rail 13, to increase piezoelectricity
The Oscillation Amplitude of cantilever beam 1, with the more electric energy of output.
The number of first auxiliary girder 11 is equal with the number of second auxiliary girder 12, is 5.It should be noted that
The number of first auxiliary girder 11 is preferably 4-6 roots, and the number of second auxiliary girder 12 is preferably 4-6 roots, existing enough humorous
Vibration frequency point, manufacture production difficulty be not also high.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of vibration energy collector, which is characterized in that including piezoelectric cantilever and mass block, the piezoelectric cantilever includes
Girder, multiple the first longitudinally disposed auxiliary girders and multiple the second longitudinally disposed auxiliary girders being laterally arranged, multiple described first is secondary
Beam and the second auxiliary girder are used to increase resonant frequency point, and one end of the girder is fixing end, and the other end of the girder is certainly
By holding, the mass block is fixed on the free end of girder, and multiple first auxiliary girder intervals are arranged and are fixed on the one of girder
Side, multiple second auxiliary girder intervals are arranged and are fixed on the other side of girder, and the piezoelectric cantilever further includes longitudinally disposed
Mounting rail, the mounting rail is arranged on the free end of girder, and the mass block is fixed on mounting rail；The mass block is
Two, two mass blocks are separately fixed at the both ends of mounting rail.
2. vibration energy collector according to claim 1, which is characterized in that the number of first auxiliary girder and described the
The number of two auxiliary girders is equal, and first auxiliary girder and the second auxiliary girder correspond, corresponding first auxiliary girder and the second auxiliary girder shape
It is identical and arranged symmetrically by symmetry axis of girder.
3. vibration energy collector according to claim 2, which is characterized in that corresponding first auxiliary girder and the second auxiliary girder matter
It measures equal.
4. according to claim 1-3 any one of them vibration energy collectors, which is characterized in that the number of first auxiliary girder
Number for 4-6 roots, second auxiliary girder is 4-6 roots.
5. according to claim 1-3 any one of them vibration energy collectors, which is characterized in that further include outstanding with the piezoelectricity
The identical metal substrate of arm beam shape, the piezoelectric cantilever are fixed on metal substrate.
6. vibration energy collector according to claim 5, which is characterized in that the piezoelectric cantilever is solid by conducting resinl
It is scheduled on metal substrate.
7. vibration energy collector according to claim 5, which is characterized in that the metal substrate is made of brass.
8. according to claim 1-3 any one of them vibration energy collectors, which is characterized in that the piezoelectric cantilever is
PZT piezoelectric ceramic pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821822.5A CN106341055B (en) | 2016-09-13 | 2016-09-13 | Vibration energy collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821822.5A CN106341055B (en) | 2016-09-13 | 2016-09-13 | Vibration energy collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106341055A CN106341055A (en) | 2017-01-18 |
| CN106341055B true CN106341055B (en) | 2018-11-13 |
Family
ID=57838995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610821822.5A Active CN106341055B (en) | 2016-09-13 | 2016-09-13 | Vibration energy collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106341055B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181427A (en) * | 2017-06-29 | 2017-09-19 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Piezoelectric energy collector and generating equipment |
| CN107947636B (en) * | 2017-12-27 | 2024-01-19 | 南京邮电大学 | Six-dimensional piezoelectric energy collector and manufacturing method thereof |
| CN108418469B (en) * | 2018-03-12 | 2019-07-09 | 佛山市顺德区中山大学研究院 | A kind of piezoelectric type vibration energy collecting device |
| CN108847786B (en) * | 2018-07-17 | 2019-08-09 | 大连理工大学 | A kind of precompressed energy accumulator with Frequency Adjustable, amplitude and big bandwidth |
| CN108832843B (en) * | 2018-07-17 | 2019-10-29 | 大连理工大学 | A kind of piezoelectricity torsion energy accumulator based on D15 mode |
| CN108860215A (en) * | 2018-09-12 | 2018-11-23 | 湖南磁浮技术研究中心有限公司 | A kind of decaying of medium-and low-speed maglev track vibration and sensing device |
| CN111525835A (en) * | 2020-03-17 | 2020-08-11 | 西北工业大学 | Multi-stage branched dense-frequency piezoelectric beam energy capturing method |
| CN113067500B (en) * | 2021-04-01 | 2021-10-26 | 巢湖学院 | Piezoelectric ceramic energy collector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746604A (en) * | 2014-01-17 | 2014-04-23 | 哈尔滨工程大学 | Photonic crystal power generating device based on lateral vibration band gap |
| CN103818870A (en) * | 2014-02-20 | 2014-05-28 | 东南大学 | Cantilever fishbone beam vibrating electromagnetic self-powered microsensor of radio frequency transceiving component of internet of things |
| CN103888023A (en) * | 2014-04-16 | 2014-06-25 | 吉林大学 | Cantilever mechanism for piezoelectric power generation |
| CN204906229U (en) * | 2015-09-24 | 2015-12-23 | 金陵科技学院 | Arborescent multimode piezoelectricity power generation facility |
-
2016
- 2016-09-13 CN CN201610821822.5A patent/CN106341055B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746604A (en) * | 2014-01-17 | 2014-04-23 | 哈尔滨工程大学 | Photonic crystal power generating device based on lateral vibration band gap |
| CN103818870A (en) * | 2014-02-20 | 2014-05-28 | 东南大学 | Cantilever fishbone beam vibrating electromagnetic self-powered microsensor of radio frequency transceiving component of internet of things |
| CN103888023A (en) * | 2014-04-16 | 2014-06-25 | 吉林大学 | Cantilever mechanism for piezoelectric power generation |
| CN204906229U (en) * | 2015-09-24 | 2015-12-23 | 金陵科技学院 | Arborescent multimode piezoelectricity power generation facility |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106341055A (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106341055B (en) | Vibration energy collector | |
| CN102790548B (en) | Bistable composite cantilever beam piezoelectric power generating device | |
| CN107707155B (en) | A kind of ultra wide band high energy efficiency device for collecting piezoelectric vibration energy | |
| CN106374777B (en) | A kind of S types piezoelectric cantilever vibration energy harvester | |
| WO2016173151A1 (en) | Piezoelectric oscillator structure for vibration energy recovery | |
| CN105337531A (en) | Piezoelectric power generation device | |
| CN103023378A (en) | Wide-frequency-band multi-direction vibration energy harvester | |
| CN105226994A (en) | Multifrequency coupled vibrations energy capture device | |
| CN101272109A (en) | Broad-band piezoelectricity oscillating generating set | |
| CN203278697U (en) | Wide-frequency-band multi-direction vibration energy harvester | |
| CN103633879A (en) | Vibration pick-up structure on basis of flexible main beam for vibration energy harvester | |
| CN106169890A (en) | Vibration energy collector | |
| CN103475265A (en) | Bistable double-piezoelectric cantilever beam vibration energy collector | |
| CN109039156A (en) | A kind of piezoelectric harvester of twin beams Flexural-Torsional Coupling Vibration mode | |
| CN111049426B (en) | Piezoelectric multidirectional and broadband vibration energy collecting device | |
| CN107623463A (en) | Bistable state piezoelectric energy recovery device | |
| CN102148587A (en) | Combined type piezoelectric generating set | |
| CN106856381B (en) | A kind of double fork cantilever beam piezoelectric energy collecting devices of beaming type bistable state bending | |
| CN209472569U (en) | A kind of combined type piezoelectric harvester device of subsidiary quality frame | |
| Searle et al. | Design, fabrication, and test of a coupled parametric–transverse nonlinearly broadband energy harvester | |
| CN110429862B (en) | Adjustable broadband spoke formula piezoelectric energy collection device | |
| CN105515442B (en) | A kind of mortar type piezoelectric harvester | |
| CN208479493U (en) | A kind of wideband vibration damping energy-collecting device of more piezoelectric cantilevers | |
| CN109617452A (en) | A kind of combined type piezoelectric harvester device of subsidiary quality frame | |
| CN206292977U (en) | A kind of self-powered traffic light systems based on blast |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |