CN106685263A - Bandwidth adjustable n*3 lattice type vibration energy collector based on modal separation technology - Google Patents
Bandwidth adjustable n*3 lattice type vibration energy collector based on modal separation technology Download PDFInfo
- Publication number
- CN106685263A CN106685263A CN201611026843.4A CN201611026843A CN106685263A CN 106685263 A CN106685263 A CN 106685263A CN 201611026843 A CN201611026843 A CN 201611026843A CN 106685263 A CN106685263 A CN 106685263A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric
- flexible
- piezoelectric cantilever
- substrate
- main beam
- 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.)
- Granted
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 10
- 238000005516 engineering process Methods 0.000 title abstract description 7
- 239000000758 substrate Substances 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 19
- 239000003292 glue Substances 0.000 claims description 18
- 239000011159 matrix material Substances 0.000 claims description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- 229910052709 silver Inorganic materials 0.000 claims description 8
- 239000004332 silver Substances 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 5
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 5
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000032258 transport 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
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention relates to a bandwidth adjustable n*3 lattice type vibration energy collector based on a modal separation technology, and belongs to environment energy collection devices in the technical field of micro energy. The bandwidth adjustable n*3 lattice type vibration energy collector comprises a flexible frame main beam structure, piezoelectric cantilever beams and mass blocks, the flexible frame main beam structure is rectangular, n-1 hollow rectangular holes of the same size and interval are formed successively in the rectangle along the axial direction, n rows of flexible main beams are formed, and n >=2; the piezoelectric cantilever beams of the same quantity are pasted and fixed to each flexible main beam; and the mass blocks are adhered to the hanging ends of all the piezoelectric cantilever beams respectively. According to the collector, the row number n of the piezoelectric cantilever beams is increased or decreased and the sizes of the piezoelectric cantilever beams and the mass blocks are changed, so that the effective bandwidth of a system is adjusted timely, the output continuity and stability of the energy collector are improved, and the environment adaptability of the vibration energy collector is enhanced.
Description
Technical field
The present invention relates to a kind of environmental energy sampler of micro- energy technology field, specifically a kind of to be based on modal separation
Adjustable n × 3 dot matrix the vibration energy collector of bandwidth of technology.
Background technology
It is extensive with aspects such as wireless mobile sensing technology external environment out of office, monitoring of working condition and carry-on medical electricals
Using with fast development, how the electronics being applied to for these in special dimension become and be pushed further into its application
Key issue.Break away from that chemical cell volume is big, short life, the constraint of the conventional energy supply method such as cable power bridge joint difficulty,
Energy in collection sensor perimeter environment has directly become the research of wireless mobile sensing technology application for system power supply
Focus.
Vibrational energy is widely present in communications and transportation（The means of transports such as automobile, aircraft and track）, mining equipment（Big moulded coal
Machine, Digit Control Machine Tool）, engineering construction（Bridge, building）And the applied environment such as organism activity.With the environment such as solar energy, wind energy
Form of energy is compared, and vibrational energy is excellent with significantly powering to the Portable movable wireless senser in above-mentioned applied environment
Gesture.However, conventional vibration energy collecting device frequency band is narrow, energy conversion efficiency is low, power output is little, can not still meet wireless at present
The power demands of mobile sensor device.The power output of energy collecting device how is improved, acquisition frequency band is widened and is allowed to and environment
It is vibrational energy collection field key issue urgently to be resolved hurrily that vibration frequency matches.
Notification number devises the energy of a kind of array piezoelectricity and Electromagnetic heating for the Chinese patent of the A of CN 103346696
Collector, by array architecture energy acquisition band width is widened, and improves energy conversion efficiency, but piezoelectricity and electromagnetic combination
Mode cause vibration pick-up structure complicated, be not easy to debug and process.Notification number is proposed for the Chinese patent of the A of CN 103023378
A kind of multi-direction vibration energy collector of broadband, is opened up by 6 T-type structure cantilever beams in the energy acquisition of multiple directions
Broadband, but this device volume is larger, complex structure, is difficult to realize.Notification number is the Chinese patent of the A of CN 102931340
A kind of wideband micro piezoelectric vibration energy collector is devised, using multigroup different cantilever array wider frequency is realized
Band output, but its micro fabrication is complicated, and cost of manufacture is higher.Xue et al. proposed multiple bimorph strings in 2008
Connection and energy acquisition structure in parallel, different first order resonance frequencies are obtained using the different-thickness of each bimorph,
So that all first order resonance frequencies are very close to increasing the frequency bandwidth of collector.This method has substantially widened work
Frequency band, but its operating frequency range（90-110 Hz）The frequency of vibration source still above in some environment（Bridge：7-10
Hz, building：15-20 Hz, rotating machinery：43-50 Hz, animal activity：1-45 Hz）.Based on this, a kind of low frequency, broadband,
Energy conversion efficiency, high power is stably exported, it is easy to which the vibration energy collector design of processing is particularly important.
The content of the invention
Narrow to solve existing energy collecting device working band, energy conversion efficiency is low, the problems such as power output is little, the present invention
A kind of adjustable n × 3 dot matrix vibration energy collector vibration pick-up structure of bandwidth based on modal Separation is proposed, the structure is not only
Can adjust and widen the frequency band range of collector, and using dot matrix structure design, can effectively improve energy conversion efficiency and
Power output.
The technical solution adopted in the present invention is：N × 3 dot matrix vibration that a kind of bandwidth based on modal Separation is adjustable
Energy collecting device, including flexible frame main beam structure, piezoelectric cantilever and mass；Flexible frame main beam structure is rectangle, is selected
A center line of rectangle is determined as axis, be sequentially provided with n-1 spacing equal in magnitude along the axis direction above rectangle identical
Hollow, rectangular hole, the entity part of all hollow, rectangular holes both sides in the axial direction forms altogether n rows flexible as flexible girder
Girder, wherein n >=2；Paste on each flexible girder and be fixed with the multiple piezoelectric cantilevers of quantity identical；All piezoelectric cantilevers
The direction of beam is identical and parallel with axis direction；One end of all piezoelectric cantilevers is pasted and fixed on the upper table of flexible girder
Face, the other end of the piezoelectric cantilever on most edge flexible girder is suspended in the outside of the most edge flexible girder,
The other end of remaining piezoelectric cantilever is suspended on neighbouring rectangular opening；Multiple piezoelectric cantilevers on same flexible girder
Beam is equidistantly arranged；A mass is stained with the suspension end of each piezoelectric cantilever.（Fig. 1）.
Described n × 3 dot matrix vibration energy collector vibration pick-up structure, including flexible frame main beam structure, piezoelectric cantilever
Beam and mass.The flexible frame main beam structure adopts the high resiliency molecular material of low Young's modulus, and the present invention preferably poly- two
Methylsiloxane（PDMS）.Described piezoelectric cantilever includes substrate and piezoelectric layer, and wherein piezoelectric layer is piezoceramics film, with
Bonded by conductive silver glue between substrate one end, mass sticks to the suspension end of substrate.Substrate is little and strong from elastic modelling quantity
Degree is big, can bear the material compared with large deformation, the present invention preferably copper sheet substrate.Piezoelectric layer is strong from piezoelectricity, and piezoelectric constant is high
Piezoelectric, the present invention preferably PZT.Mass is big from density, inexpensively, the metal material of easy processing, the present invention preferably iron block.
The present invention operation principle be：Flexible frame main beam structure two ends are fixed（Two ends in the axial direction are fixed）, when
When the present invention is positioned in actual environment vibration system, under extraneous excitation, the fixing end of flexible frame main beam structure is shaken
Move and drive whole flexible frame main beam structure to vibrate, so that the piezoelectric cantilever being pasted onto on flexible frame main beam structure surface
Beam vibrates together, and mechanical vibrational energy is converted into electric energy by piezoelectric cantilever by deforming upon in vibration.Flexible Main is arranged by n
The design of beam, adjusts and often arranges piezoelectric cantilever and mass size on flexible girder to change the effective mass of flexible girder, real
Mode of oscillation between existing difference flexible girder is separated, and then reaches the effect for widening low-frequency band.All piezoelectric cantilevers are adopted
Cascaded structure realizes connection.
Compared with prior art, the invention has the advantages that：
Using flexible frame structure as girder.The Young's modulus of flexible material is little, structural elasticity is high.Using flexible frame structure
Easily experience the vibration of external environment, and vibrational energy is passed into piezoelectric cantilever, so as to reduce often arranging piezoelectric cantilever
Mode of oscillation, can realize that broadband vibration energy is gathered in the low-frequency range of 50 below Hz.
Using n × 3 dot matrix Piezoelectric Cantilever Beams.By adjusting the piezoelectric cantilever and quality often arranged on flexible girder
Block size, changes the effective mass of different flexible girders, realizes that the mode of oscillation between different flexible girders is separated, and then reaches and open up
The effect of wide low-frequency band.
With the increase of row n in the dot matrix Piezoelectric Cantilever Beams of n × 3, the mode of oscillation of energy collecting device increases, can
The effective band for utilizing is widened.As row n increases, the quantity of piezoelectric cantilever increases in energy collecting device, output electricity
Pressure increase, while improve the power output of system.
By row n for increasing or reducing piezoelectric cantilever, while change piezoelectric cantilever and mass size size,
Can timely adjustment system effective frequency belt width, improve energy collecting device output stability, and then strengthen vibration
The adaptive capacity to environment of energy collecting device.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention（A- flexible frame main beam structures, b- piezoelectric cantilevers, c- mass
Block）.
Fig. 2 is the structural representation of piezoelectric cantilever（C- masses, d- substrates, e- piezoelectric layers）.
Fig. 3 by the invention of embodiment 12 × 3 dot matrix vibration pick-up structures output frequency resonse characteristic.
Fig. 4 by the invention of embodiment 23 × 3 dot matrix vibration pick-up structures output frequency resonse characteristic.
Fig. 5 by the invention of embodiment 35 × 3 dot matrix vibration pick-up structures output frequency resonse characteristic.
Specific embodiment
Further clear, complete explanation is made to the present invention below in conjunction with example is embodied as.
Embodiment 1
The present invention includes flexible frame main beam structure a, piezoelectric cantilever b and mass c, and flexible frame main beam structure a is rectangle
Frame like structure, center is provided with a hollow rectangular opening；One end of piezoelectric cantilever b is pasted and fixed on flexible frame main beam structure
The upper surface of a, the other end is hanging, and piezoelectric cantilever b hanging length is less than the width of rectangular opening, and mass c sticks to piezoelectricity
The suspension end of cantilever beam b；Six piezoelectric cantilever b（n=2）Equidistantly arrange in the same direction in rectangular opening both sides respectively.
Flexible frame main beam structure a selects PDMS material, and the lateral surface on the framework both sides parallel with piezoelectric cantilever b is consolidated
It is fixed.
Piezoelectric cantilever b includes that substrate d and piezoelectric layer e, piezoelectric layer e are pasted onto the rear end table of substrate d using conductive silver glue
Face, mass c AB glues are in the front end of substrate d.Wherein：Substrate d adopts copper sheet material, piezoelectric layer e to adopt PZT-5H materials
Material.As shown in figure 3, the width of the width of substrate d and piezoelectric layer e is equal, but length of the length of substrate d more than piezoelectric layer e,
In implementation process, after allowing piezoelectric layer e to align with substrate d one end, pasted with conductive silver glue and fixed.Shown in this embodiment six
Individual piezoelectric cantilever size is identical with mass size, in rectangular opening both sides towards right in two rows distribution, and along hollow, rectangular
Long side direction it is equidistantly arranged in parallel；Arrange with the left alignment of flexible frame main beam structure a 3 substrate d sides of the 1st row
Row, 3 substrate d sides of the 2nd row and the long side alignment in right side of hollow, rectangular on flexible frame main beam structure a, Ran Houyong
The substrate d of piezoelectric cantilever b is pasted and fixed on AB glue the upper surface of flexible frame main beam structure a, and the other end is hanging；Six pressures
The connected mode of electric cantilever beam b is to be connected in series.
Mass c adopts ferrous material.Mass c is fixed on the front end of substrate d with AB glues, with substrate d front end edges
Bound pair is neat, and does not contact with piezoelectric layer e；Mass c is identical with the width of piezoelectric cantilever b.The frequency response characteristic of its output
Curve is as shown in Figure 3.
Embodiment 2
The present invention includes flexible frame main beam structure a, piezoelectric cantilever b and mass c, and flexible frame main beam structure a is rectangle
Frame like structure, is provided with two hollow rectangular openings in rectangular configuration；One end of piezoelectric cantilever b is pasted and fixed on flexible frame master
The upper surface of girder construction a, the other end is hanging, and piezoelectric cantilever b hanging length is less than the width of rectangular opening, mass c adhesions
In the suspension end of piezoelectric cantilever b；Nine piezoelectric cantilever b（n=3）Respectively between two rectangular opening both sides are waited in the same direction
Away from arrangement.
Flexible frame main beam structure a selects PDMS material, and the lateral surface on the framework both sides parallel with piezoelectric cantilever b is consolidated
It is fixed.
Piezoelectric cantilever b includes that substrate d and piezoelectric layer e, piezoelectric layer e are pasted onto the rear end table of substrate d using conductive silver glue
Face, mass c with AB glues substrate d front-end surface.Wherein：Substrate d adopts copper sheet material, piezoelectric layer e to adopt PZT-
5H materials.The width of substrate d and equal with the width of the piezoelectric layer e that it is pasted, but length of the length of substrate d more than piezoelectric layer e
Degree, in implementation process, after allowing piezoelectric layer e to align with substrate d one end, is pasted with conductive silver glue and is fixed.In this embodiment
Nine piezoelectric cantilever sizes and mass size are incomplete same（1st row and the size and quality of the 3rd row piezoelectric cantilever b
Block size is identical, different from the size of the 2nd row）, respectively two hollow, rectangular hole both sides along same direction be in three rows
Distribution, and it is equidistantly arranged in parallel along the long side direction of hollow, rectangular；Tie with flexible frame girder 3 substrate d sides of the 1st row
Tie with flexible frame girder respectively the left alignment arrangement of structure a, the side of 3 substrate d of 3 substrate d and the 3rd row of the 2nd row
The long side alignment in right side of upper two hollow, rectangulars of structure a, is then pasted and fixed on the substrate d of piezoelectric cantilever b with AB glue
The upper surface of flexible frame main beam structure a, the other end is hanging；The connected mode of nine piezoelectric cantilever b is to be connected in series.
Mass c adopts ferrous material.Mass c is fixed on the front end of substrate d with AB glues, with substrate d front end edges
Bound pair is neat, and does not contact with piezoelectric layer e；The width of mass c and identical with the width of the piezoelectric cantilever b that it is pasted.Its is defeated
The frequency response characteristic for going out is as shown in Figure 4.
Embodiment 3
The present invention includes flexible frame main beam structure a, piezoelectric cantilever b and mass c, and flexible frame main beam structure a is rectangle
Frame like structure, is provided with four hollow rectangular openings in rectangular configuration；One end of piezoelectric cantilever b is pasted and fixed on flexible frame master
The upper surface of girder construction a, the other end is hanging, and piezoelectric cantilever b hanging length is less than the width of rectangular opening, mass c adhesions
In the suspension end of piezoelectric cantilever b；15 piezoelectric cantilever b（n=5）Respectively four rectangular opening both sides in the same direction etc.
Spacing is arranged.
Flexible frame main beam structure a selects PDMS material, and the lateral surface on the framework both sides parallel with piezoelectric cantilever b is consolidated
It is fixed.
Piezoelectric cantilever b includes that substrate d and piezoelectric layer e, piezoelectric layer e are pasted onto the rear end table of substrate d using conductive silver glue
Face, mass c with AB glues substrate d front-end surface.Wherein：Substrate d adopts copper sheet material, piezoelectric layer e to adopt PZT-
5H materials.The width of substrate d and equal with the width of the piezoelectric layer e that it is pasted, but length of the length of substrate d more than piezoelectric layer e
Degree, in implementation process, after allowing piezoelectric layer e to align with substrate d one end, is pasted with conductive silver glue and is fixed.In this embodiment
15 piezoelectric cantilever sizes and mass size are incomplete same（The size and mass of wherein different row's piezoelectric cantilevers
Size is incomplete same, and the size of 3 piezoelectric cantilevers of each row is identical with mass size）, respectively in four
Empty rectangular opening both sides are distributed towards right in five rows, and equidistantly arranged in parallel along the long side direction of hollow, rectangular；3 bases of the 1st row
Plate d sides arrange with the left alignment of flexible frame main beam structure a, and remaining is often arranged（The row of 2nd, 3,4 and 5）3 substrate d sides
Respectively with the long side alignment in right side of upper four hollow, rectangulars of flexible frame main beam structure a, then with AB glue by piezoelectric cantilever
The substrate d of beam b is pasted and fixed on the upper surface of flexible frame main beam structure a, and the other end is hanging；15 piezoelectric cantilever b's
Connected mode is to be connected in series.
Mass c adopts ferrous material.Mass c is fixed on the front end of substrate d with AB glues, with substrate d front end edges
Bound pair is neat, and does not contact with piezoelectric layer e；The width of mass c and identical with the width of the piezoelectric cantilever b that it is pasted.Its is defeated
The frequency response characteristic for going out is as shown in Figure 5.
Claims (4)
1. the adjustable n × 3 dot matrix vibration energy collector of a kind of bandwidth based on modal Separation, it is characterised in that include
Flexible frame main beam structure, piezoelectric cantilever and mass；Flexible frame main beam structure is rectangle, selectes a center of rectangle
Line is sequentially provided with n-1 spacing identical hollow, rectangular hole equal in magnitude above rectangle as axis along the axis direction, owns
The entity part of hollow, rectangular hole both sides in the axial direction forms altogether n row's flexible girders, wherein n >=2 as flexible girder；Often
Paste on individual flexible girder and be fixed with the multiple piezoelectric cantilevers of quantity identical；The direction of all piezoelectric cantilevers is identical and equal
It is parallel with axis direction；One end of all piezoelectric cantilevers is pasted and fixed on the upper surface of flexible girder, positioned at a most edge
The other end of the piezoelectric cantilever on flexible girder is suspended in the outside of the most edge flexible girder, remaining piezoelectric cantilever it is another
One end is suspended on neighbouring rectangular opening；Multiple piezoelectric cantilevers on same flexible girder are equidistantly arranged；Every
The suspension end of individual piezoelectric cantilever is stained with a mass.
2. the adjustable n × 3 dot matrix vibration energy collector of bandwidth of modal Separation is based on as claimed in claim 1, its
It is characterised by, the axis is the long center line of flexible frame main beam structure；The minor face and diameter parallel of rectangular opening；Each is flexible
Fixed piezoelectric cantilever is three on girder.
3. the adjustable n × 3 dot matrix vibration energy collector of bandwidth of modal Separation is based on as claimed in claim 1 or 2,
Characterized in that, piezoelectric cantilever includes substrate and piezoelectric layer, piezoelectric layer is pasted onto the rear end surface of substrate using conductive silver glue,
Mass with AB glues substrate front-end surface.
4. the adjustable n × 3 dot matrix vibration energy collector of bandwidth of modal Separation is based on as claimed in claim 3, its
It is characterised by, substrate adopts copper sheet material, piezoelectric layer to adopt PZT-5H materials；The width of substrate and the piezoelectric layer pasted with it
Width is equal, and the length of substrate is more than the length of piezoelectric layer；Flexible frame main beam structure adopts PDMS material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026843.4A CN106685263B (en) | 2016-11-22 | 2016-11-22 | The bandwidth dot matrix vibration energy collector of adjustable n × 3 based on modal Separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026843.4A CN106685263B (en) | 2016-11-22 | 2016-11-22 | The bandwidth dot matrix vibration energy collector of adjustable n × 3 based on modal Separation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106685263A true CN106685263A (en) | 2017-05-17 |
| CN106685263B CN106685263B (en) | 2019-07-26 |
Family
ID=58866541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611026843.4A Active CN106685263B (en) | 2016-11-22 | 2016-11-22 | The bandwidth dot matrix vibration energy collector of adjustable n × 3 based on modal Separation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106685263B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884818A (en) * | 2017-12-13 | 2018-04-06 | 中国地质大学（武汉） | A kind of piezoelectric seismometer |
| CN107894610A (en) * | 2017-12-13 | 2018-04-10 | 中国地质大学（武汉） | A kind of both arms piezoelectric seismometer |
| CN110403288A (en) * | 2019-07-10 | 2019-11-05 | 林爱迪 | A kind of air bag helmet and its helmet specially used accelerometer |
| CN112865600A (en) * | 2020-12-31 | 2021-05-28 | 山西财经大学 | Broadband three-dimensional piezoelectric vibration energy collecting array structure |
| CN112865599A (en) * | 2020-12-31 | 2021-05-28 | 山西财经大学 | Three-dimensional broadband vibration energy acquisition structure based on long thin sheet and rod-shaped combination |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203278696U (en) * | 2012-10-26 | 2013-11-06 | 北京理工大学 | Multiple cantilever wideband MEMS piezoelectric energy harvester |
| CN103633879A (en) * | 2013-12-13 | 2014-03-12 | 太原理工大学 | Vibration pick-up structure on basis of flexible main beam for vibration energy harvester |
| CN104796037A (en) * | 2015-04-22 | 2015-07-22 | 北京工业大学 | Wideband piezoelectric power generating device |
| US20160141980A1 (en) * | 2014-11-14 | 2016-05-19 | Microgen Systems, Inc. | Piezoelectric energy harvesting and signal processing system, and method of use |
-
2016
- 2016-11-22 CN CN201611026843.4A patent/CN106685263B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203278696U (en) * | 2012-10-26 | 2013-11-06 | 北京理工大学 | Multiple cantilever wideband MEMS piezoelectric energy harvester |
| CN103633879A (en) * | 2013-12-13 | 2014-03-12 | 太原理工大学 | Vibration pick-up structure on basis of flexible main beam for vibration energy harvester |
| US20160141980A1 (en) * | 2014-11-14 | 2016-05-19 | Microgen Systems, Inc. | Piezoelectric energy harvesting and signal processing system, and method of use |
| CN104796037A (en) * | 2015-04-22 | 2015-07-22 | 北京工业大学 | Wideband piezoelectric power generating device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884818A (en) * | 2017-12-13 | 2018-04-06 | 中国地质大学（武汉） | A kind of piezoelectric seismometer |
| CN107894610A (en) * | 2017-12-13 | 2018-04-10 | 中国地质大学（武汉） | A kind of both arms piezoelectric seismometer |
| CN110403288A (en) * | 2019-07-10 | 2019-11-05 | 林爱迪 | A kind of air bag helmet and its helmet specially used accelerometer |
| CN112865600A (en) * | 2020-12-31 | 2021-05-28 | 山西财经大学 | Broadband three-dimensional piezoelectric vibration energy collecting array structure |
| CN112865599A (en) * | 2020-12-31 | 2021-05-28 | 山西财经大学 | Three-dimensional broadband vibration energy acquisition structure based on long thin sheet and rod-shaped combination |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106685263B (en) | 2019-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106685263A (en) | Bandwidth adjustable n*3 lattice type vibration energy collector based on modal separation technology | |
| Liu et al. | A comprehensive review on piezoelectric energy harvesting technology: Materials, mechanisms, and applications | |
| CN103633879B (en) | Based on the vibration energy collector vibration pick-up structure of flexible girder | |
| CN101764532B (en) | Piezoelectric giant magnetostrictive combined wideband vibration energy collector | |
| CN101908837B (en) | MEMS broadband piezoelectric energy collector based on PDMS film structure | |
| CN101272109A (en) | Broad-band piezoelectricity oscillating generating set | |
| CN203896222U (en) | Self-excited vibration mechanism-based multi-directional broadband vibration energy collecting device | |
| CN105305881A (en) | Arc vibration energy collector based on piezoelectricity | |
| CN102170246B (en) | Vibrating type miniature wind driven generator with flexible beam structure | |
| CN109194193B (en) | Bridge type self-adaptive piezoelectric energy collector | |
| CN105405963A (en) | Gradient piezoelectric fiber composite material and preparation method thereof | |
| CN203278697U (en) | Wide-frequency-band multi-direction vibration energy harvester | |
| WO2019137037A1 (en) | Wideband energy harvesting device based on mechanical induction | |
| CN204906228U (en) | Wavy multi -direction broadband piezoelectricity vibration energy collection device | |
| CN102983781A (en) | Piezoelectric vibratory energy harvester | |
| CN105790634B (en) | A kind of wideband acoustic energy retracting device | |
| CN110572077B (en) | Energy buffer type collision piezoelectric energy collecting device | |
| CN105305882B (en) | A kind of multi-direction piezoelectric vibration energy collector | |
| CN103269179A (en) | Piezoelectric plate and vibration energy collector | |
| CN205545002U (en) | Multi -direction piezoelectric power generating device of collar structure | |
| CN110022087A (en) | The energy conversion unit and preparation method of beam type vibration energy collector | |
| CN106856381A (en) | A kind of double fork cantilever beam piezoelectric energy collecting devices of beaming type bistable state bending | |
| CN205693581U (en) | Piezoelectric energy collecting device | |
| CN206585483U (en) | A kind of miniature piezoelectric and electric capacity energy composite energy collector | |
| Si et al. | Study of the ambient vibration energy harvesting based on piezoelectric effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |