CN110518833A - A kind of multi-direction piezoelectric energy collector of square prism shape - Google Patents
A kind of multi-direction piezoelectric energy collector of square prism shape Download PDFInfo
- Publication number
- CN110518833A CN110518833A CN201910832145.0A CN201910832145A CN110518833A CN 110518833 A CN110518833 A CN 110518833A CN 201910832145 A CN201910832145 A CN 201910832145A CN 110518833 A CN110518833 A CN 110518833A
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- piezoelectric layer
- piezoelectric
- cantilever beam
- prism shape
- energy collector
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- 230000010287 polarization Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 230000005284 excitation Effects 0.000 claims description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003860 storage Methods 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
Abstract
The invention discloses a kind of multi-direction piezoelectric energy collectors of square prism shape, including cantilever beam, fixing end, mass block, described cantilever beam one end is connect with the mass block, the other end is set as fixing end, the side of the cantilever beam and is successively arranged the first piezoelectric layer, the second piezoelectric layer, third piezoelectric layer, the 4th piezoelectric layer close to one end of fixing end；First piezoelectric layer and third piezoelectric layer normal orientation are identical as Y direction, and second piezoelectric layer and the 4th piezoelectric layer normal orientation are identical as Z-direction；The present invention improves the energy conversion efficiency of piezoelectric energy collector.Structure is simple, and manufacturing cost is low, is easy to realize the micromation of product and integrated by MEMS technology, can improve the output electric current of energy harvester between piezoelectric layer by way of parallel connection two-by-two.
Description
Technical field
The present invention relates to a kind of multi-direction piezoelectric energy collectors of square prism shape, belong to piezoelectric energy collection technique neck
Domain.
Background technique
Vibrational energy widely exists in nature, if it is possible to extract from environment, conversion stores this energy just
The permanent power supply of miniature low-power consumption class equipment can be achieved.In order to fully utilize the vibrational energy in environment, people are just mentioned
Piezoelectric energy collection technique is gone out.
When piezoelectric material is deformed by external force, it may occur that polarization phenomena can go out on two apparent surface
Existing positive and negative two kinds of opposite charges.Piezoelectric energy collection technique will be existed in external environment using the piezoelectric effect of piezoelectric material
Vibration mechanical energy be converted to electric energy and carry out storage utilization.Piezoelectric type energy collector has the characteristics that structure is simple, is easy to collect
Cheng Hua, micromation.
But the structure of current piezoelectric type energy collector is mostly there is being only capable of effectively converting single vibration oriented energy,
The disadvantage low for other oriented energy transfer efficiencies, (Chinese patent is public for such as a kind of piezoelectric energy collector and preparation method thereof
The number of opening CN105932906A).The direction of vibration of vibrational energy present in the external world is not all fixed and invariable, and only converts single side
To vibrational energy larger impact will cause for the energy conversion efficiency of energy harvester.
Existing multi-direction piezoelectric energy collector structure is the array group that multiple cantilever beams are passed through different location mostly
The collection that multiple directions vibrational energy is realized with being superimposed is closed, such as sextuple piezoelectric type energy collector (China Patent Publication No.
CN207603482U), the multi-modal array cantilever beam piezoelectric energy collecting device (China Patent Publication No. in a kind of space
CN106856380A) etc..But this method undoubtedly increases the space complexity of device architecture, it is difficult to carry out energy harvester
Micromation with it is integrated.
Summary of the invention
The purpose of the present invention is to provide a kind of multi-direction piezoelectric energy collectors of square prism shape, to solve the prior art
In multi-direction piezoelectric energy collector structure space complexity it is high, it is difficult to carry out the micromation of energy harvester with it is integrated
Defect.
A kind of multi-direction piezoelectric energy collector of square prism shape, including cantilever beam, fixing end, mass block, the cantilever
Beam one end is connect with the mass block, and the other end is set as fixing end, the side of the cantilever beam and close to one end of fixing end according to
It is secondary to be equipped with the first piezoelectric layer, the second piezoelectric layer, third piezoelectric layer, the 4th piezoelectric layer；First piezoelectric layer and third piezoelectric layer
Normal orientation is identical as Y direction, and second piezoelectric layer and the 4th piezoelectric layer normal orientation are identical as Z-direction.
Preferably, when vibrational excitation of the cantilever beam by Y direction, the first piezoelectric layer and third piezoelectric layer surface are produced
Raw polarization charge；When vibrational excitation by Z-direction, the second piezoelectric layer and the 4th piezoelectric layer surface generate polarization charge.
Preferably, the cantilever beam is positive quadrangular shape, and deck-siding is equal with deck-molding, uses material for phosphor bronze.
Preferably, first piezoelectric layer is consistent with third piezoelectric layer polarization direction, the second piezoelectric layer and the 4th piezoelectric layer
Polarization direction is consistent.
Preferably, first piezoelectric layer, the second piezoelectric layer, third piezoelectric layer, the 4th piezoelectric layer length it is identical, with a thickness of
0.3mm, use material for PZT-5H.
Preferably, the length of first piezoelectric layer, the second piezoelectric layer, third piezoelectric layer, the 4th piezoelectric layer is not less than outstanding
The one third of arm beam length.
Preferably, the mass block is cubic, uses material for metallic nickel.
Preferably, the side length of the mass block is greater than the section side length of cantilever beam.
Compared with prior art, advantageous effects of the invention:
The quadrangular shape structure 1. the cantilever beam of the energy harvester is positive can absorb the direction of motion under same resonance frequency and mutually hang down
Straight vibrational energy improves the energy conversion efficiency of piezoelectric energy collector.
2. the structure of the energy harvester is simple, and manufacturing cost is low, easily compared with existing multi-direction piezoelectric energy collector
In by MEMS technology realize product micromation with it is integrated.
3. compared with existing multi-direction piezoelectric energy collector, settable four piezoelectricity on the energy harvester single cantilever beam
Layer, the output electric current of energy harvester can be improved between piezoelectric layer by way of parallel connection two-by-two.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the sectional view of cantilever beam of the invention；
Fig. 3 is structure of the invention side view.
In figure: 1- cantilever beam, 2- fixing end, 3- mass block, the first piezoelectric layer of 4-, the second piezoelectric layer of 5-, 6- third piezoelectricity
Layer, the 4th piezoelectric layer of 7-.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
As shown in Fig. 1-Fig. 3, a kind of multi-direction piezoelectric type energy collector of square prism shape is disclosed, by following portion
It is grouped as: cantilever beam 1, fixing end 2, mass block 3, the first piezoelectric layer 4, the second piezoelectric layer 5, third piezoelectric layer 6, the 4th piezoelectric layer
7 compositions.Cantilever beam 1 be a square prism shape metal block, four sides successively adhesion the first piezoelectric layer 4, the second piezoelectric layer 5,
Third piezoelectric layer 6, the 4th piezoelectric layer 7.Wherein the first piezoelectric layer 4 is opposite with third piezoelectric layer 6, and its normal orientation and Y-axis phase
Together；Second piezoelectric layer 5 and the 4th piezoelectric layer 7 are opposite, and its normal orientation is identical as Z axis.1 one end of cantilever beam is mass block 3, separately
One end is fixing end 2, and piezoelectric layer accompanying by cantilever beam sides abuts fixing end 2.
Wherein the first piezoelectric layer 4, the second piezoelectric layer 5, third piezoelectric layer 6, region shape is accompanying by the 4th piezoelectric layer 7
Rectangle, and its width and cantilever beam 1 are of same size, length are not less than the one third of 1 length of cantilever beam, the first piezoelectric layer 4,
Second piezoelectric layer 5, third piezoelectric layer 6, the 4th piezoelectric layer 7 are sequentially arranged at the surface of cantilever beam 1 counterclockwise, and close to fixing end
2 one end, with a thickness of 0.3mm.Cantilever beam 1 uses material for the good phosphor bronze of ductility.Material used by mass block 3 is
Metallic nickel increases the displacement of cantilever beam 1 for reducing resonance frequency.First piezoelectric layer 4, the second piezoelectric layer 5, third piezoelectric layer
6, the 4th piezoelectric layer 7 uses material for PZT-5H, wherein the first piezoelectric layer 4 is identical as the polarization direction of third piezoelectric layer 6, second
Piezoelectric layer 5 is identical as the polarization direction of the 4th piezoelectric layer 7.
Working principle: 1 structure of cantilever beam selects square prism shape structure, keeps the height and the width of cantilever beam 1 equal, simultaneously
Four sides of cantilever beam 1 are all pasted with piezoelectric layer.When cantilever beam 1 is by vibrational excitation from Y direction, the first piezoelectricity
Layer 4 just generates direct piezoelectric effect with third piezoelectric layer 6, generates polarization charge on piezoelectric layer or so surface；Come when cantilever beam 1 receives
From when the vibrational excitation of Z-direction, the second piezoelectric layer 5 and the 4th piezoelectric layer 7 just generate direct piezoelectric effect, over the piezoelectric layer following table
Face generates polarization charge.The energy harvester can absorb the vibrational energy from Y-axis and Z-direction under same resonance frequency, and
Two directions piezoelectric patches work when it is mutually indepedent, therefore can be by normal orientation Y-axis piezoelectric layer and normal orientation be Z axis pressure
Electric layer carries out in parallel, the output electric current of raising piezoelectric type energy collector.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of multi-direction piezoelectric energy collector of square prism shape, which is characterized in that including cantilever beam (1), fixing end (2),
Mass block (3), described cantilever beam (1) one end are connect with the mass block (3), and the other end is set as fixing end (2), the cantilever beam
(1) one end of side and close fixing end (2) is successively arranged the first piezoelectric layer (4), the second piezoelectric layer (5), third piezoelectric layer
(6), the 4th piezoelectric layer (7)；First piezoelectric layer (4) and third piezoelectric layer (6) normal orientation are identical as Y direction, described
Second piezoelectric layer (5) and the 4th piezoelectric layer (7) normal orientation are identical as Z-direction.
2. the multi-direction piezoelectric energy collector of square prism shape according to claim 1, which is characterized in that the cantilever beam
(1) when vibrational excitation by Y direction, the first piezoelectric layer (4) and third piezoelectric layer (6) surface generate polarization charge；By Z
When the vibrational excitation of axis direction, the second piezoelectric layer (5) and the 4th piezoelectric layer (7) surface generate polarization charge.
3. the multi-direction piezoelectric energy collector of square prism shape according to claim 1, which is characterized in that the cantilever beam
(1) be positive quadrangular shape, and deck-siding is equal with deck-molding, uses material for phosphor bronze.
4. the multi-direction piezoelectric energy collector of square prism shape according to claim 1, which is characterized in that first pressure
Electric layer (4) is consistent with third piezoelectric layer (6) polarization direction, and the second piezoelectric layer (5) is consistent with the 4th piezoelectric layer (7) polarization direction.
5. the multi-direction piezoelectric energy collector of square prism shape according to claim 1, which is characterized in that first pressure
Electric layer (4), the second piezoelectric layer (5), third piezoelectric layer (6), the 4th piezoelectric layer (7) length is identical, with a thickness of 0.3mm, using material
Material is PZT-5H.
6. the multi-direction piezoelectric energy collector of square prism shape according to claim 1, which is characterized in that first pressure
Electric layer (4), the second piezoelectric layer (5), third piezoelectric layer (6), the 4th piezoelectric layer (7) length not less than cantilever beam (1) length
One third.
7. the multi-direction piezoelectric energy collector of square prism shape according to claim 1, which is characterized in that the mass block
(3) it is cubic, uses material for metallic nickel.
8. the multi-direction piezoelectric energy collector of square prism shape according to claim 1, which is characterized in that the mass block
(3) side length is greater than the section side length of cantilever beam (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832145.0A CN110518833B (en) | 2019-09-04 | 2019-09-04 | Regular quadrangular multi-direction piezoelectric energy collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832145.0A CN110518833B (en) | 2019-09-04 | 2019-09-04 | Regular quadrangular multi-direction piezoelectric energy collector |
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| Publication Number | Publication Date |
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| CN110518833A true CN110518833A (en) | 2019-11-29 |
| CN110518833B CN110518833B (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910832145.0A Active CN110518833B (en) | 2019-09-04 | 2019-09-04 | Regular quadrangular multi-direction piezoelectric energy collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116780938A (en) * | 2022-01-27 | 2023-09-19 | 西安科技大学 | Piezoelectric equal-strength cantilever beam energy harvester |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739109A (en) * | 2012-07-09 | 2012-10-17 | 南京航空航天大学 | Single-pendulum piezoelectric generator |
| CN102868315A (en) * | 2012-10-12 | 2013-01-09 | 哈尔滨工业大学 | Paster-type bending vibration composite dual-feet ultrasound motor oscillator |
| US20130334932A1 (en) * | 2012-06-14 | 2013-12-19 | Canon Kabushiki Kaisha | Vibrating body, method of manufacturing the same and vibration type drive device |
| CN203645575U (en) * | 2013-10-11 | 2014-06-11 | 浙江工商大学 | Cantilever beam piezoelectric motor having energy acquisition function |
| CN104184367A (en) * | 2014-08-01 | 2014-12-03 | 南京航空航天大学 | Cylindrical multidirectional stacked type piezoelectric energy acquisition apparatus |
-
2019
- 2019-09-04 CN CN201910832145.0A patent/CN110518833B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130334932A1 (en) * | 2012-06-14 | 2013-12-19 | Canon Kabushiki Kaisha | Vibrating body, method of manufacturing the same and vibration type drive device |
| CN102739109A (en) * | 2012-07-09 | 2012-10-17 | 南京航空航天大学 | Single-pendulum piezoelectric generator |
| CN102868315A (en) * | 2012-10-12 | 2013-01-09 | 哈尔滨工业大学 | Paster-type bending vibration composite dual-feet ultrasound motor oscillator |
| CN203645575U (en) * | 2013-10-11 | 2014-06-11 | 浙江工商大学 | Cantilever beam piezoelectric motor having energy acquisition function |
| CN104184367A (en) * | 2014-08-01 | 2014-12-03 | 南京航空航天大学 | Cylindrical multidirectional stacked type piezoelectric energy acquisition apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116780938A (en) * | 2022-01-27 | 2023-09-19 | 西安科技大学 | Piezoelectric equal-strength cantilever beam energy harvester |
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| CN110518833B (en) | 2021-09-28 |
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Application publication date: 20191129 Assignee: Nanjing Ningqixing Information Technology Co.,Ltd. Assignor: NANJING University OF POSTS AND TELECOMMUNICATIONS Contract record no.: X2023980046580 Denomination of invention: A Quadrangular Multi directional Piezoelectric Energy Collector Granted publication date: 20210928 License type: Common License Record date: 20231113 Application publication date: 20191129 Assignee: Nanjing Kecheng Zhijia Smart Technology Co.,Ltd. Assignor: NANJING University OF POSTS AND TELECOMMUNICATIONS Contract record no.: X2023980046578 Denomination of invention: A Quadrangular Multi directional Piezoelectric Energy Collector Granted publication date: 20210928 License type: Common License Record date: 20231113 Application publication date: 20191129 Assignee: Nanjing Bodexin Information Technology Co.,Ltd. Assignor: NANJING University OF POSTS AND TELECOMMUNICATIONS Contract record no.: X2023980046576 Denomination of invention: A Quadrangular Multi directional Piezoelectric Energy Collector Granted publication date: 20210928 License type: Common License Record date: 20231113 |
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Application publication date: 20191129 Assignee: NANJING YUANGAN MICROELECTRONIC CO.,LTD. Assignor: NANJING University OF POSTS AND TELECOMMUNICATIONS Contract record no.: X2023980048637 Denomination of invention: A Quadrangular Multi directional Piezoelectric Energy Collector Granted publication date: 20210928 License type: Common License Record date: 20231201 |