CN110391769A - One kind being rounded section piezoelectricity low amplitude vibration energy accumulator - Google Patents
One kind being rounded section piezoelectricity low amplitude vibration energy accumulator Download PDFInfo
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- CN110391769A CN110391769A CN201910734075.5A CN201910734075A CN110391769A CN 110391769 A CN110391769 A CN 110391769A CN 201910734075 A CN201910734075 A CN 201910734075A CN 110391769 A CN110391769 A CN 110391769A
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- energy accumulator
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- 239000000463 material Substances 0.000 claims abstract description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910001369 Brass Inorganic materials 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000010951 brass Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 241000245665 Taraxacum Species 0.000 description 1
- 235000005187 Taraxacum officinale ssp. officinale Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
One kind being rounded section piezoelectricity low amplitude vibration energy accumulator, including support device, clamping device, piezoelectric beam, it is characterised in that: the clamping device is movably connected on the top and bottom of piezoelectric beam, and is bolted by connection in the upside of support device.The support device includes pedestal and carrying bolt, and the clamping device includes that upper link block, lower connecting block, connection bolt, upper clamp plate and lower clamp plate, the piezoelectric beam include variable cross-section circular beam, piezoelectric patches and mass block.Piezoelectric beam of the present invention is variable cross-section circular beam, so that each section stress of beam is roughly equal, to improve the utilization rate of piezoelectric material；By the array of piezoelectric beam, it can be achieved that output energy complement under different frequency, and then realize high-power output；The configuration of the present invention is simple is readily produced, is low in cost, being easily installed.
Description
Technical field
Present invention relates particularly to one kind to be rounded section piezoelectricity low amplitude vibration energy accumulator, belongs to piezoelectric vibration prisoner energy and new energy
Development technique field.
Background technique
The continuous development of micro energy lose electronic equipment in recent years promotes the development of associated confession power technology.Traditional
Power supply mode is to be energized using chemical cell, but that there are volumes is big, service life is limited, special occasions is not easy for chemical cell
The disadvantages of replacement, so that the application of chemical cell is restricted.In the natural environment, collecting the energy in environment is micro energy lose electricity
The Research Thinking of sub- equipment power supply, is proposed by domestic and foreign scholars, vibrational energy storage is abundant and energy density is higher and by
Extensive concern.According to the difference of switching mechanism, vibrational energy acquisition geometry is divided into piezoelectric type, electrostatic, electromagnetic type, because of structure
Simply, energy density is high, generates the advantages that heat is small, and the research of piezoelectric type vibration energy harvester becomes research hotspot.
The disadvantages of there are the high and low efficiency of frequency acquisition and low-power due to classical rectangular cantilever girder construction, both at home and abroad
Scholar proposes a variety of piezoelectric harvester structures to realize low frequency, high efficiency and the high power acquisition of energy accumulator, such as: equal strength
Girder construction, symplasm gauge block piezoelectric-array structure, dandelion shape etc., but the piezoelectric vibratory energy harvester of above structure cannot solve well
The certainly high and low efficiency of frequency acquisition and the problems such as low-power.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide one kind to be rounded section piezoelectricity low amplitude vibration energy accumulator, have low
Frequently, the advantages of high efficiency and high power acquire solves the high and low efficiency of frequency acquisition existing for existing vibration energy accumulator and low
The disadvantages of power.
To achieve the above object, the present invention takes following technical scheme: one kind being rounded section piezoelectricity low amplitude vibration energy accumulator,
Including support device, clamping device, piezoelectric beam, it is characterised in that: the clamping device be movably connected on piezoelectric beam top and
Bottom, and be bolted by connection in the upside of support device.
Preferably, the support device includes pedestal and carrying bolt, and the carrying bolt is connected with pedestal, the bottom
Seat uses acrylic board material.
Preferably, the clamping device includes upper link block, lower connecting block, connects bolt, upper clamp plate and lower clamp plate, described
Bolt is provided with two groups, and the end of the bolt sequentially passes through link block, lower connecting block, upper clamp plate and lower clamp plate, the spiral shell
The surface of bolt has been connected through a screw thread nut, and the side of nut is connected with the side of upper clamp plate and lower clamp plate respectively.
Preferably, the piezoelectric beam includes variable cross-section circular beam, piezoelectric patches and mass block, and the piezoelectric patches passes through conducting resinl
Water is bonded in the intermediate upside of variable cross-section circular beam, and the mass block is bonded in one end of variable cross-section circular beam by conductive glue
Upside.
Preferably, the upper link block, lower connecting block, upper clamp plate and lower clamp plate are all made of acrylic material, and size can
It is chosen according to practical application request, the connection bolts and nuts are all made of standard component.
Preferably, the structure size of variable cross-section circular beam both ends cross-section part is 25 × 20 × 0.2mm, the change
The structure size of variable cross-section part is R17.5 × 0.2mm and uses H60 brass sheet material, the piezoelectricity among section circle beam
The structure size of piece is R12.5 × 0.2mm, and uses PZT-5H piezoelectric ceramic piece, and two pole-faces of the piezoelectric patches are welded with
Conducting wire, the mass block uses H60 brass sheet material, and size can be chosen according to practical application request.
The invention adopts the above technical scheme, which has the following advantages:
1, piezoelectric beam of the present invention is variable cross-section circular beam, so that each section stress of beam is roughly equal, to improve piezoresistive material
The utilization rate of material.
2, the present invention and then realizes height by the array of piezoelectric beam, it can be achieved that output energy complement under different frequency
Power output.
3, the configuration of the present invention is simple is readily produced, is low in cost, being easily installed.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic diagram of support device of the present invention；
Fig. 3 is the schematic diagram of clamping device of the present invention；
Fig. 4 is the structural schematic diagram of piezoelectric beam of the present invention.
In figure: 1 support device, 2 clamping devices, 3 piezoelectric beams, 4 pedestals, 5 carrying bolts, supporting block on 6,7 lower supporting blocks,
8 connection bolts, grip block, 10 lower grip blocks, 11 variable cross-section circular beams, 12 piezoelectric patches, 13 mass blocks on 9.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figs 1-4, a specific embodiment of the invention includes: that one kind is rounded section piezoelectricity low amplitude vibration energy accumulator,
Including support device 1, clamping device 2, piezoelectric beam 3, it is characterised in that: clamping device 2 be movably connected on piezoelectric beam 3 top and
Bottom, and the upside for being connected to support device 1 by connecting bolt 5.
Support device 1 includes pedestal 4 and carrying bolt 5, and carrying bolt 5 is connected with pedestal 4, and pedestal 4 uses acrylic
Plate material.
Clamping device 2 includes that upper link block 6, lower connecting block 7, connection bolt 8, upper clamp plate 9 and lower clamp plate 10, bolt 8 are set
Two groups are equipped with, the end of bolt 8 sequentially passes through link block 6, lower connecting block 7, upper clamp plate 9 and lower clamp plate 10, the surface of bolt 8
It is connected through a screw thread nut, and the side of nut is connected with the side of upper clamp plate 9 and lower clamp plate 10 respectively.
Piezoelectric beam 3 includes variable cross-section circular beam 11, piezoelectric patches 12 and mass block 13, and piezoelectric patches 12 is bonded by conductive glue
In the intermediate upside of variable cross-section circular beam 11, mass block 13 is bonded on one end of variable cross-section circular beam 11 by conductive glue
Side.
Upper link block 6, lower connecting block 7, upper clamp plate 9 and lower clamp plate 10 are all made of acrylic material, and size can be according to reality
Border application demand is chosen, and connection bolt 8 and nut are all made of standard component.
The structure size of 3 both ends cross-section part of variable cross-section circular beam is 25 × 20 × 0.2mm, in variable cross-section circular beam 3
Between variable cross-section part structure size is R17.5 × 0.2mm and uses H60 brass sheet material, the structure size of piezoelectric patches 12 is
R12.5 × 0.2mm, and PZT-5H piezoelectric ceramic piece is used, two pole-faces of piezoelectric patches 12 are welded with conducting wire, and mass block 13 uses
H60 brass sheet material, and size can be chosen according to practical application request.
When use: the clamping device 2 that upper link block 6, lower connecting block 7, connection bolt 8, upper clamp plate 9 and lower clamp plate 10 form
With biggish rigidity, and the upside for being connected to support device 1 by connecting bolt 5, support device 1 are fixed on by mounting hole
On vibration source, vibration source band movable support device 1 is vibrated, and then clamping device 2 is driven to vibrate, final that piezoelectric beam 3 is driven to vibrate, and is compeled
12 stress deformation of piezoelectric patches is produced electricl energy, mechanical energy is made to be converted into electric energy, to realize that the piezoelectric vibration energy of energy accumulator is received
Collect function.
In present case, 3 array quantity of piezoelectric beam is 4 groups, array quantity can appropriate adjustment according to actual needs, wherein becoming
Influence of the section circle beam 11 due to making precision, structure size is not exactly the same, so that the resonance frequency of different piezoelectric beams
Rate is inconsistent, experiment proves that: 11 array structure of variable cross-section circular beam of the coupling of beam more than 4 groups can be realized not in vibration processes
Output energy complement under same frequency has the change of some or multiple more beam couplings to cut under a certain range of different frequency
Face circular beam 11 generates resonance, and then realizes high-power output.
By experimental result it is known that when four piezoelectric beams 3 are connected in parallel, in resonant frequency 10Hz, output power is most
Big reachable 0.213mW, by connecting energy collection circuit LTC3588, demonstrating piezoelectric energy collector can be realized wireless biography
The self-powered of sense realizes the acquisition of low frequency piezoelectric energy.
The above, preferable specific embodiment only of the invention, but the scope of protection of the present invention is not limited thereto, and it is all
Within the principle of spirit of the invention, any modification, equivalent substitution, improvement and etc. done are regarded as invading of the invention
Protection scope, therefore the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. one kind is rounded section piezoelectricity low amplitude vibration energy accumulator, including support device (1), clamping device (2), piezoelectric beam (3),
Be characterized in that: the clamping device (2) is movably connected on the top and bottom of piezoelectric beam (3), and passes through connection bolt (5) connection
In the upside of support device (1).
2. one kind according to claim 1 is rounded section piezoelectricity low amplitude vibration energy accumulator, it is characterised in that: the support dress
Setting (1) includes pedestal (4) and carrying bolt (5), and the carrying bolt (5) is connected with pedestal (4), and the pedestal (4) uses
Acrylic board material.
3. one kind according to claim 1 is rounded section piezoelectricity low amplitude vibration energy accumulator, it is characterised in that: the clamping dress
Setting (2) includes upper link block (6), lower connecting block (7), connection bolt (8), upper clamp plate (9) and lower clamp plate (10), the bolt
(8) be provided with two groups, the end of the bolt (8) sequentially pass through link block (6), lower connecting block (7), upper clamp plate (9) and under
Clamping plate (10), the surface of the bolt (8) have been connected through a screw thread nut, and the side of nut respectively with upper clamp plate (9) and under
The side of clamping plate (10) is connected.
4. one kind according to claim 1 is rounded section piezoelectricity low amplitude vibration energy accumulator, it is characterised in that: the piezoelectric beam
It (3) include variable cross-section circular beam (11), piezoelectric patches (12) and mass block (13), the piezoelectric patches (12) is bonded by conductive glue
In the intermediate upside of variable cross-section circular beam (11), the mass block (13) is bonded in variable cross-section circular beam (11) by conductive glue
One end on the upside of.
5. according to claim 3 be rounded section piezoelectricity low amplitude vibration energy accumulator, it is characterised in that: the upper link block
(6), lower connecting block (7), upper clamp plate (9) and lower clamp plate (10) are all made of acrylic material, and size can be according to practical application need
It asks and is chosen, the connection bolt (8) and nut are all made of standard component.
6. one kind according to claim 4 is rounded section piezoelectricity low amplitude vibration energy accumulator, it is characterised in that: the variable cross-section
The structure size of circular beam (3) both ends cross-section part is 25 × 20 × 0.2mm, becomes among the variable cross-section circular beam (3) and cuts
The structure size of face part is R17.5 × 0.2mm and uses H60 brass sheet material, and the structure size of the piezoelectric patches (12) is
R12.5 × 0.2mm, and PZT-5H piezoelectric ceramic piece is used, two pole-faces of the piezoelectric patches (12) are welded with conducting wire, the matter
Gauge block (13) uses H60 brass sheet material, and size can be chosen according to practical application request.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734075.5A CN110391769A (en) | 2019-08-09 | 2019-08-09 | One kind being rounded section piezoelectricity low amplitude vibration energy accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734075.5A CN110391769A (en) | 2019-08-09 | 2019-08-09 | One kind being rounded section piezoelectricity low amplitude vibration energy accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110391769A true CN110391769A (en) | 2019-10-29 |
Family
ID=68288662
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910734075.5A Pending CN110391769A (en) | 2019-08-09 | 2019-08-09 | One kind being rounded section piezoelectricity low amplitude vibration energy accumulator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197101A (en) * | 2013-04-18 | 2013-07-10 | 厦门乃尔电子有限公司 | Non-uniform section cantilever beam piezoelectricity accelerating speed sensor |
| CN103825494A (en) * | 2014-02-20 | 2014-05-28 | 东南大学 | Fixed supporting beam vibration electromagnetic self-powered microsensor in radio frequency receiving and transmitting assembly of Internet of Things |
| CN105958865A (en) * | 2016-06-21 | 2016-09-21 | 南京邮电大学 | Isosceles trapezoid cantilever beam-based piezoelectric-electromagnetic energy capture device |
| CN207304406U (en) * | 2017-08-03 | 2018-05-01 | 安徽理工大学 | Equal strength beam type piezoelectric vibration energy collector |
| CN109067240A (en) * | 2018-07-17 | 2018-12-21 | 同济大学 | A kind of beam type piezoelectric energy collector with cavity |
| CN208820703U (en) * | 2018-10-21 | 2019-05-03 | 吉林大学 | A kind of wide frequency domain self-tuning bistable state vibration energy collector |
-
2019
- 2019-08-09 CN CN201910734075.5A patent/CN110391769A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197101A (en) * | 2013-04-18 | 2013-07-10 | 厦门乃尔电子有限公司 | Non-uniform section cantilever beam piezoelectricity accelerating speed sensor |
| CN103825494A (en) * | 2014-02-20 | 2014-05-28 | 东南大学 | Fixed supporting beam vibration electromagnetic self-powered microsensor in radio frequency receiving and transmitting assembly of Internet of Things |
| CN105958865A (en) * | 2016-06-21 | 2016-09-21 | 南京邮电大学 | Isosceles trapezoid cantilever beam-based piezoelectric-electromagnetic energy capture device |
| CN207304406U (en) * | 2017-08-03 | 2018-05-01 | 安徽理工大学 | Equal strength beam type piezoelectric vibration energy collector |
| CN109067240A (en) * | 2018-07-17 | 2018-12-21 | 同济大学 | A kind of beam type piezoelectric energy collector with cavity |
| CN208820703U (en) * | 2018-10-21 | 2019-05-03 | 吉林大学 | A kind of wide frequency domain self-tuning bistable state vibration energy collector |
Non-Patent Citations (1)
| Title |
|---|
| TIANBING MA 等: "Investigation on the design and application of 3-dimensional wide-band piezoelectric energy harvester for low amplitude vibration sources", 《网址：154.59.124.171》 * |
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Application publication date: 20191029 |
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