CN108448934B - Third-order intelligent circular arc piezoelectric energy collector - Google Patents
Third-order intelligent circular arc piezoelectric energy collector Download PDFInfo
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- CN108448934B CN108448934B CN201810408542.0A CN201810408542A CN108448934B CN 108448934 B CN108448934 B CN 108448934B CN 201810408542 A CN201810408542 A CN 201810408542A CN 108448934 B CN108448934 B CN 108448934B
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- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010974 bronze Substances 0.000 claims description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 14
- 230000005540 biological transmission Effects 0.000 description 6
- 230000009466 transformation Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
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- 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
Abstract
The invention discloses a third-order intelligent circular arc piezoelectric energy collector, which comprises three cantilever beams, wherein the first cantilever beam, the second cantilever beam and the third cantilever beam are sleeved in sequence, the radius of the first cantilever beam is R1, the radius of the second cantilever beam is R2, the radius of the third cantilever beam is R3, the radius R1 of the first cantilever beam is smaller than the radius R2 of the second cantilever beam, and the radius R2 of the second cantilever beam is smaller than the radius R3 of the third cantilever beam; the left ends of the first cantilever beam, the second cantilever beam and the third cantilever beam are connected with the fixed mass block, and the right ends of the first cantilever beam, the second cantilever beam and the third cantilever beam are connected with the metal fixed end. The third-order intelligent circular arc type piezoelectric energy collector can be used for multidimensional adjustment of energy absorption under a specific structure, and can control frequency to one point to output high power while achieving vibration energy absorption in a large frequency range.
Description
Technical Field
The invention relates to a third-order intelligent circular arc piezoelectric energy collector, and belongs to the technical field of energy collection.
Background
The piezoelectric energy collector converts mechanical energy which cannot be directly utilized in the surrounding environment into electric energy which can be directly utilized by utilizing a piezoelectric effect mode. The piezoelectric energy collector commonly used at present is usually in a straight structure, and the piezoelectric energy collector can play a role in energy collection under the structure, but experiments show that the frequency range of the collectable energy is smaller, and the output potential is lower. In addition, the piezoelectric energy collector with the straight structure has a series of defects of low stability, low space utilization and the like. The double-degree-of-freedom circular arc piezoelectric energy collector is applied to the top surface or the side surface of the mass block through external vibration, the cantilever beam is deformed in a vibration mode, and the piezoelectric layer generates electric potential.
The high-performance circular arc piezoelectric energy collector outputs high potential under a certain radian, and has large first-order frequency and long multi-order bandwidth. The circular arc piezoelectric energy collector with double degrees of freedom has the advantages that the first-order frequency of high potential is small, the multi-order bandwidth is short, the singleness of the energy absorption direction is solved, the vibration energy in the top surface and the side surface directions of the mass block can be absorbed, the structure of the piezoelectric energy collector with double degrees of freedom is complex, the processing is difficult, MEMS integration is not easy, and the piezoelectric energy collector with double degrees of freedom cannot simultaneously have the advantages of high performance and double degrees of freedom.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a third-order intelligent circular arc piezoelectric energy collector.
The aim of the invention is achieved by the following technical scheme: the utility model provides a third order intelligence circular arc formula piezoelectric energy collector, includes three cantilever beams, and first cantilever beam, second cantilever beam and third cantilever beam overlap in proper order and establish, the radius of first cantilever beam is R1, and the radius of second cantilever beam is R2, and the radius of third cantilever beam is R3, and the radius R1 of first cantilever beam is less than the radius R2 of second cantilever beam, and the radius R2 of second cantilever beam is less than the radius R3 of third cantilever beam.
Preferably, the left ends of the first cantilever beam, the second cantilever beam and the third cantilever beam are all connected with the fixed mass block, and the right ends of the first cantilever beam, the second cantilever beam and the third cantilever beam are all connected with the metal fixed end.
Preferably, the first cantilever beam is a first arc-shaped sheet with an arc degree of 180 degrees, a first-stage piezoelectric layer is attached to the first arc-shaped sheet, the first-stage piezoelectric layer is an arc-shaped material layer, the left end of the first arc-shaped sheet is connected with a first fixed mass block, and a first adjustable mass block is movably arranged above the first arc-shaped sheet.
Preferably, the second cantilever beam is a second arc-shaped sheet with an radian of 180 degrees, a second-order piezoelectric layer is attached to the second arc-shaped sheet, the second-order piezoelectric layer is an arc-shaped material layer, the radian of the second-order piezoelectric layer is 160 degrees, the left end of the second arc-shaped sheet is connected with a second fixed mass block, and a second adjustable mass block is movably arranged above the second arc-shaped sheet.
Preferably, the third cantilever beam is a third arc-shaped sheet with an arc degree of 180 degrees, a third-order piezoelectric layer is attached to the third arc-shaped sheet, the third-order piezoelectric layer is an arc-shaped material layer, the left end of the third arc-shaped sheet is connected with a third fixed mass block, and a third adjustable mass block is movably arranged above the third arc-shaped sheet.
Preferably, the first circular arc-shaped sheet has an inner diameter of 20mm, an outer diameter of 30mm, a width of 10mm and an arc degree of 180 degrees; the inner diameter of the second circular arc-shaped sheet is 20mm, the outer diameter of the second circular arc-shaped sheet is 30mm, the width of the second circular arc-shaped sheet is 10mm, and the radian of the second circular arc-shaped sheet is 180 degrees; the third circular arc-shaped sheet has an inner diameter of 20mm, an outer diameter of 30mm, a width of 10mm and a circular arc degree of 180 degrees, the interval between the first circular arc-shaped sheet and the second circular arc-shaped sheet is 1mm, and the interval between the second circular arc-shaped sheet and the third circular arc-shaped sheet is 1mm.
Preferably, the cantilever beam is made of phosphor bronze material.
Preferably, the first fixed mass block, the second fixed mass block and the third mass block are all made of nickel materials, the first adjustable mass block, the second adjustable mass block and the third adjustable mass block are all made of nickel materials, and the length, the width and the height of the first fixed mass block and the first adjustable mass block are all 10mm; the length, width and height of the second fixed mass block and the second adjustable mass block are 10mm; the length, width and height of the third fixed mass block and the third adjustable mass block are 10mm.
Preferably, the first-order piezoelectric layer, the second-order piezoelectric layer and the third-order piezoelectric layer are all PZT-5H.
Preferably, the radian of the first-order piezoelectric layer is 160 degrees, the inner diameter of the first-order piezoelectric layer is 20mm, the outer diameter of the first-order piezoelectric layer is 30mm, and the thickness of the first-order piezoelectric layer is 0.3mm; the radian of the second-order piezoelectric layer is 160 degrees, the inner diameter of the second-order piezoelectric layer is 20mm, the outer diameter of the second-order piezoelectric layer is 30mm, and the thickness of the second-order piezoelectric layer is 0.3mm; the radian of the third-order piezoelectric layer is 160 degrees, the inner diameter of the third-order piezoelectric layer is 20mm, the outer diameter of the third-order piezoelectric layer is 30mm, and the thickness of the third-order piezoelectric layer is 0.3mm.
The technical scheme of the invention has the advantages that:
the third-order intelligent circular arc type piezoelectric energy collector can be used for multidimensional adjustment of energy absorption under a specific structure, and can control frequency to one point to output high power while achieving vibration energy absorption in a large frequency range.
According to the third-order intelligent circular arc type piezoelectric energy collector, the third-order piezoelectric layers are cascaded, so that the vibration energy with the frequency between 34Hz and 90Hz can be absorbed, and the frequency range of the energy which can be collected is obviously increased compared with that of a traditional piezoelectric energy collecting device.
The third-order intelligent circular arc type piezoelectric energy collector can respectively design the position of the adjustable mass block on the piezoelectric layer, control the frequency of the energy which can be collected by the piezoelectric layer to a point, and realize high-power energy transmission.
Because MEMS is based on photoetching and sputtering technology, compared with a more traditional double-degree-of-freedom arc piezoelectric energy collector structure, the three-order intelligent arc piezoelectric energy collector of the technical scheme is built from 6 layers originally and simplified into 2 layers, and the mass block and the connecting sheet are uniformly simplified into an arc shape, so that the process manufacturing process is greatly simplified.
Compared with a high-performance arc-shaped piezoelectric energy collector, the third-order intelligent arc-shaped piezoelectric energy collector provided by the technical scheme can be used for multi-dimensional adjustment of energy absorption under a specific structure. The vibration energy absorption in a large frequency range is realized, and meanwhile, the frequency can be controlled to be one point to output high power. In addition, the technical scheme has the advantages of easy integration, microminiaturization and the like.
Drawings
Fig. 1 is a schematic structural diagram of a third-order intelligent circular arc piezoelectric energy collector according to the present invention.
Fig. 2 is a schematic view illustrating the movement of the angle of the adjustable mass block of the third-order intelligent circular arc piezoelectric energy collector of the present invention.
Fig. 3 is an image of the energy output power versus the mass angle of a third-order intelligent circular arc piezoelectric energy harvester of the present invention.
Fig. 4 is an image of energy absorption frequency versus mass angle for a third-order intelligent circular arc piezoelectric energy harvester of the present invention.
Fig. 5 is a graph of first order energy output power versus frequency for a third order intelligent circular arc piezoelectric energy harvester of the present invention.
Fig. 6 is a graph of the second order energy output power versus frequency of a third order intelligent circular arc piezoelectric energy harvester of the present invention.
Fig. 7 is a graph of third order energy output power versus frequency for a third order intelligent circular arc piezoelectric energy harvester of the present invention.
Fig. 8 is an image of energy output power versus frequency for a third order intelligent circular arc piezoelectric energy harvester of the present invention.
Detailed Description
The objects, advantages and features of the present invention are illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of the technical scheme of the invention, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the scope of the invention.
The invention discloses a third-order intelligent circular arc piezoelectric energy collector, which comprises three cantilever beams, as shown in fig. 1 and 2, wherein a first cantilever beam 1, a second cantilever beam 2 and a third cantilever beam 3 are sleeved in sequence, the radius of the first cantilever beam is R1, the radius of the second cantilever beam is R2, the radius of the third cantilever beam is R3, the radius of the third cantilever beam 3, the radius of the second cantilever beam 2 and the radius of the first cantilever beam 1 are gradually decreased, and specifically, the radius R1 of the first cantilever beam is smaller than the radius R2 of the second cantilever beam, and the radius R2 of the second cantilever beam is smaller than the radius R3 of the third cantilever beam.
The left ends of the first cantilever beam 1, the second cantilever beam 2 and the third cantilever beam 3 are fixedly connected with the fixed mass block 4, the right ends of the first cantilever beam, the second cantilever beam and the third cantilever beam are connected with the metal fixed end 5, and the arc length L=10rad and the height HM=10mm of the fixed mass block 4.
Specifically, the first cantilever beam 1 is a first arc-shaped sheet with an arc degree of 180 degrees, a first-stage piezoelectric layer 10 is attached to the first arc-shaped sheet, the first-stage piezoelectric layer is an arc-shaped material layer, the left end of the first arc-shaped sheet is connected with a first fixed mass block, and a first adjustable mass block 11 is movably arranged above the first arc-shaped sheet.
The second cantilever beam 2 is a second arc-shaped sheet with the radian of 180 degrees, a second-order piezoelectric layer 20 is attached to the second arc-shaped sheet, the second-order piezoelectric layer is an arc-shaped material layer, the radian of the second-order piezoelectric layer is 160 degrees, the left end of the second arc-shaped sheet is connected with a second fixed mass block, and a second adjustable mass block 21 is movably arranged above the second arc-shaped sheet.
The third cantilever beam 3 is a third arc-shaped sheet with an arc degree of 180 degrees, a third-order piezoelectric layer 30 is attached to the third arc-shaped sheet, the third-order piezoelectric layer is an arc-shaped material layer, the left end of the third arc-shaped sheet is connected with a third fixed mass block, and a third adjustable mass block 31 is movably arranged above the third arc-shaped sheet. The first and second and third adjustable mass blocks are different in size, and the width and length of the third mass block are larger than those of the first and second adjustable mass blocks.
The cantilever beam is made of phosphor bronze material, and specifically, the cantilever beam structure is in a circular arc-shaped sheet with 180-degree radian and made of phosphor bronze material. The inner diameter of the first arc-shaped sheet is 20mm, the outer diameter of the first arc-shaped sheet is 30mm, the width of the first arc-shaped sheet is 10mm, and the radian of the first arc-shaped sheet is 180 degrees; the inner diameter of the second circular arc-shaped sheet is 20mm, the outer diameter of the second circular arc-shaped sheet is 30mm, the width of the second circular arc-shaped sheet is 10mm, and the radian of the second circular arc-shaped sheet is 180 degrees; the third circular arc-shaped sheet has an inner diameter of 20mm, an outer diameter of 30mm, a width of 10mm, a circular arc degree of 180 degrees, and a thickness hs=0.5 mm of the base layer, the interval between the first circular arc-shaped sheet and the second circular arc-shaped sheet is 1mm, and the interval between the second circular arc-shaped sheet and the third circular arc-shaped sheet is 1mm.
The first fixed mass block, the second fixed mass block and the third mass block are made of nickel materials, and the first adjustable mass block, the second adjustable mass block and the third adjustable mass block are made of nickel materials, as shown in fig. 2, which is an angular movement schematic diagram of the adjustable mass blocks, and the movement angle of each adjustable mass block is 0-160 degrees.
The length, width and height of the first fixed mass block and the first adjustable mass block are 10mm; the length, width and height of the second fixed mass block and the second adjustable mass block are 10mm; the length, width and height of the third fixed mass block and the third adjustable mass block are 10mm. The arc length of the first adjustable mass block and the second adjustable mass block is L=10rad, and the height HM=10mm.
The first-order piezoelectric layer 10, the second-order piezoelectric layer 20 and the third-order piezoelectric layer 30 are all PZT-5H, and specifically, the first-order piezoelectric layer, the second-order piezoelectric layer and the third-order piezoelectric layer are all arc-shaped sheets with radian of 160 degrees, which are formed by adopting PZT-5H as a material. The radian of the first-order piezoelectric layer is 160 degrees, the inner diameter of the first-order piezoelectric layer is 20mm, the outer diameter of the first-order piezoelectric layer is 30mm, and the thickness of the first-order piezoelectric layer is 0.3mm; the radian of the second-order piezoelectric layer is 160 degrees, the inner diameter of the second-order piezoelectric layer is 20mm, the outer diameter of the second-order piezoelectric layer is 30mm, and the thickness of the second-order piezoelectric layer is 0.3mm; the radian of the third-order piezoelectric layer is 160 degrees, the inner diameter of the third-order piezoelectric layer is 20mm, the outer diameter of the third-order piezoelectric layer is 30mm, and the thickness of the third-order piezoelectric layer is 0.3mm.
According to the third-order intelligent circular arc type piezoelectric energy collector, the third-order piezoelectric layers are cascaded together, so that the frequency range for collecting energy is effectively enlarged. To highlight the large frequency range of the collectable energy of the present invention, a pressure with a boundary load of 10pa was applied as a voltage excitation on top of the mass, and the energy absorption frequencies that could be covered by the piezoelectric layers 1, 2, and 3 are summarized as shown in table 1 below.
Table 1 energy absorption frequency units that piezoelectric layers can cover: hz (Hz)
According to the above table 1, the last third-order piezoelectric layer is cascaded to correspond to the energy absorption frequency of the invention, and the third-order intelligent circular arc piezoelectric energy collector in the technical scheme is cascaded to greatly expand the frequency range in which the energy collector can collect energy, and compared with the traditional first-order and second-order piezoelectric energy collection devices, the third-order intelligent circular arc piezoelectric energy collector can more widely absorb, convert and transmit energy.
As shown in fig. 3 and 4, the abscissa of fig. 3 is an angle, the ordinate is an output power, the abscissa of fig. 4 is an angle, and the ordinate is a frequency. Although three piezoelectric layers attached to the cantilever beam can all play a role in energy collection, the frequency of the energy that can be collected by the piezoelectric layers and the power of the energy transmitted are not the same for the same angle.
And applying pressure with boundary load of 10pa to the top of the mass block as voltage excitation, and changing the movement angle of the adjustable mass block to obtain the relation curves of the output energy power of first order, second order and third order and frequency, wherein the relation curves are respectively shown in fig. 5, 6 and 7. Fig. 5 is an abscissa showing frequency, an ordinate showing output power, fig. 6 is an abscissa showing frequency, an ordinate showing output power, fig. 7 is an abscissa showing frequency, an ordinate showing output power, fig. 8 is an abscissa showing frequency, an ordinate showing output power,
as can be seen from an analysis of fig. 5 and 6 and 7, for the first-order piezoelectric layer, there is a maximum power of 0.829W at a frequency of 50 Hz; for a second-order piezoelectric layer, the maximum power is 0.454Hz at the frequency of 44 Hz; for the third order piezoelectric layer, there is a maximum power of 0.371W at a frequency of 37 Hz.
As the order increases, the energy power that each piezoelectric layer can output alone decreases. In order to make up for the defect, the third-order intelligent circular arc piezoelectric energy collector in the technical scheme can adjust the angle of the gauge block by moving the position of the adjustable gauge block on the piezoelectric layer, as shown in fig. 2, so that the energy frequencies transmitted by the three piezoelectric layers are equal. At the moment, resonance occurs on the energy of the three piezoelectric layers, the total output energy power is the sum of the energy powers transmitted by the three piezoelectric layers, the energy transmission characteristic of controlling the frequency to a specific point to output high power is further achieved, meanwhile, the intelligent screening effect is achieved on the energy of the frequency, and the piezoelectric energy collecting device has obvious advantages compared with a traditional piezoelectric energy collecting device.
In order to better embody the high power transmission advantage of the third-order intelligent circular arc piezoelectric energy collector for specific frequency energy, the angle of the adjustable mass block is continuously adjusted, as shown in fig. 2, so that each piezoelectric layer is positioned at the same energy absorption frequency, and a relation graph of transmission energy transmission power and frequency is drawn, as shown in fig. 8. As can be seen from FIG. 8, there are high power outputs of 0.69W and 0.96W at frequencies of 44Hz and 50 Hz. The power value is obviously higher than the energy power independently output by the first-order voltage layer, the second-order voltage layer and the third-order voltage layer, so that the third-order intelligent circular arc piezoelectric energy collector has obvious high-power transmission advantage.
In summary, the third-order intelligent circular arc energy collector adopts a circular arc structural design with a certain radian, and three circular arc piezoelectric layers are cascaded. The invention can carry out multidimensional adjustment of energy absorption under a specific structure, can control the frequency to one point to output high power while realizing vibration energy absorption in a large frequency range, has a series of advantages of high output power, controllable frequency, controllable bandwidth and the like, and has higher research value.
The third-order intelligent circular arc piezoelectric energy collector has the advantages that the high-performance circular arc piezoelectric energy collector and the double-freedom-degree circular arc piezoelectric energy collector can absorb vibration energy in the directions of the top surface and the side surface, and in addition, the third-order intelligent circular arc piezoelectric energy collector also provides a structure which is easy to process, simplifies the structural complexity, is easy to integrate MEMS, also has the technical advantages of high performance and double freedom degrees, and is used as an integrated unit small module of a piezoelectric integrated chip.
The invention has various embodiments, and all technical schemes formed by equivalent transformation or equivalent transformation fall within the protection scope of the invention.
Claims (6)
1. A third-order intelligent circular arc piezoelectric energy collector is characterized in that: the cantilever beam comprises three cantilever beams, wherein a first cantilever beam, a second cantilever beam and a third cantilever beam are sleeved in sequence, the radius of the first cantilever beam is R1, the radius of the second cantilever beam is R2, the radius of the third cantilever beam is R3, the radius R1 of the first cantilever beam is smaller than the radius R2 of the second cantilever beam, and the radius R2 of the second cantilever beam is smaller than the radius R3 of the third cantilever beam; the left ends of the first cantilever beam, the second cantilever beam and the third cantilever beam are connected with the fixed mass block, and the right ends of the first cantilever beam, the second cantilever beam and the third cantilever beam are connected with the metal fixed end;
the first cantilever beam is a first arc-shaped sheet with the radian of 180 degrees, a first-stage piezoelectric layer is attached to the first arc-shaped sheet, the first-stage piezoelectric layer is an arc-shaped material layer, the left end of the first arc-shaped sheet is connected with a first fixed mass block, and a first adjustable mass block is movably arranged above the first arc-shaped sheet;
the second cantilever beam is a second arc-shaped sheet with the radian of 180 degrees, a second-order piezoelectric layer is attached to the second arc-shaped sheet, the second-order piezoelectric layer is an arc-shaped material layer, the radian of the second-order piezoelectric layer is 160 degrees, the left end of the second arc-shaped sheet is connected with a second fixed mass block, and a second adjustable mass block is movably arranged above the second arc-shaped sheet;
the third cantilever beam is a third arc-shaped sheet with the radian of 180 degrees, a third-order piezoelectric layer is attached to the third arc-shaped sheet, the third-order piezoelectric layer is an arc-shaped material layer, the left end of the third arc-shaped sheet is connected with a third fixed mass block, and a third adjustable mass block is movably arranged above the third arc-shaped sheet.
2. The third-order intelligent circular arc piezoelectric energy collector according to claim 1, wherein: the inner diameter of the first arc-shaped sheet is 20mm, the outer diameter of the first arc-shaped sheet is 30mm, the width of the first arc-shaped sheet is 10mm, and the radian of the first arc-shaped sheet is 180 degrees; the inner diameter of the second circular arc-shaped sheet is 20mm, the outer diameter of the second circular arc-shaped sheet is 30mm, the width of the second circular arc-shaped sheet is 10mm, and the radian of the second circular arc-shaped sheet is 180 degrees; the third circular arc-shaped sheet has an inner diameter of 20mm, an outer diameter of 30mm, a width of 10mm and a circular arc degree of 180 degrees, the interval between the first circular arc-shaped sheet and the second circular arc-shaped sheet is 1mm, and the interval between the second circular arc-shaped sheet and the third circular arc-shaped sheet is 1mm.
3. The third-order intelligent circular arc piezoelectric energy collector according to claim 1, wherein: the cantilever beam is made of phosphor bronze material.
4. The third-order intelligent circular arc piezoelectric energy collector according to claim 1, wherein: the first fixed mass block, the second fixed mass block and the third mass block are made of nickel materials, the first adjustable mass block, the second adjustable mass block and the third adjustable mass block are made of nickel materials, and the length, the width and the height of the first fixed mass block and the first adjustable mass block are 10mm; the length, width and height of the second fixed mass block and the second adjustable mass block are 10mm; the length, width and height of the third fixed mass block and the third adjustable mass block are 10mm.
5. The third-order intelligent circular arc piezoelectric energy collector according to claim 1, wherein: the first-order piezoelectric layer, the second-order piezoelectric layer and the third-order piezoelectric layer are all PZT-5H.
6. The third-order intelligent circular arc piezoelectric energy collector according to claim 5, wherein: the radian of the first-order piezoelectric layer is 160 degrees, the inner diameter of the first-order piezoelectric layer is 20mm, the outer diameter of the first-order piezoelectric layer is 30mm, and the thickness of the first-order piezoelectric layer is 0.3mm; the radian of the second-order piezoelectric layer is 160 degrees, the inner diameter of the second-order piezoelectric layer is 20mm, the outer diameter of the second-order piezoelectric layer is 30mm, and the thickness of the second-order piezoelectric layer is 0.3mm; the radian of the third-order piezoelectric layer is 160 degrees, the inner diameter of the third-order piezoelectric layer is 20mm, the outer diameter of the third-order piezoelectric layer is 30mm, and the thickness of the third-order piezoelectric layer is 0.3mm.
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| JP2015019434A (en) * | 2013-07-08 | 2015-01-29 | パナソニック株式会社 | Power generation device |
| CN107919816A (en) * | 2017-12-18 | 2018-04-17 | 南京邮电大学 | Double freedom circular arc type piezoelectric energy collector |
| CN208174574U (en) * | 2018-05-02 | 2018-11-30 | 南京邮电大学 | A kind of three rank intelligence circular arc type piezoelectric type energy collectors |
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| JP2015019434A (en) * | 2013-07-08 | 2015-01-29 | パナソニック株式会社 | Power generation device |
| CN107919816A (en) * | 2017-12-18 | 2018-04-17 | 南京邮电大学 | Double freedom circular arc type piezoelectric energy collector |
| CN208174574U (en) * | 2018-05-02 | 2018-11-30 | 南京邮电大学 | A kind of three rank intelligence circular arc type piezoelectric type energy collectors |
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