CN108566118A - One kind being based on spiral helicine energy collecting device - Google Patents
One kind being based on spiral helicine energy collecting device Download PDFInfo
- Publication number
- CN108566118A CN108566118A CN201810214425.0A CN201810214425A CN108566118A CN 108566118 A CN108566118 A CN 108566118A CN 201810214425 A CN201810214425 A CN 201810214425A CN 108566118 A CN108566118 A CN 108566118A
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- China
- Prior art keywords
- piezoelectric patches
- flexible pcb
- collecting device
- energy collecting
- spiral helicine
- Prior art date
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- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims description 10
- 239000004642 Polyimide Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000003698 laser cutting Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920006267 polyester film Polymers 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract 1
- NMWSKOLWZZWHPL-UHFFFAOYSA-N 3-chlorobiphenyl Chemical compound ClC1=CC=CC(C=2C=CC=CC=2)=C1 NMWSKOLWZZWHPL-UHFFFAOYSA-N 0.000 description 7
- FPWNLURCHDRMHC-UHFFFAOYSA-N 4-chlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1 FPWNLURCHDRMHC-UHFFFAOYSA-N 0.000 description 7
- 101001082832 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) Pyruvate carboxylase 2 Proteins 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004804 winding 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
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses one kind being based on spiral helicine energy collecting device, including piezoelectric patches, first flexible PCB, second flexible PCB and mass block, first flexible PCB, piezoelectric patches is clipped in the middle by the second flexible PCB, coil region is provided on piezoelectric patches, it is provided with mass block on the end of piezoelectric patches, the energy collecting device made of such structure, flexibility is preferable, larger Bending Deformation can be generated, it is also more sensitive to extraneous vibration, the piezoelectric patches effective length for being provided with coil region is longer, it is easier to vibrate, and the intrinsic frequency of energy collecting device itself is reduced, the design of mass block also reduces the intrinsic frequency of energy collecting device simultaneously.
Description
Technical field
The present invention relates to MEMS to integrate manufacture field, especially a kind of to be based on spiral helicine energy collecting device.
Background technology
With the development of MEMS, wearable electronic and integrated circuit, integrated journey of the mankind to product
The requirement of degree is higher and higher, how to power for low power consuming devices and also becomes much-talked-about topic, common MEMS is all adopted
Powered with chemical cell, chemical cell there are many disadvantages, such as volume is big, short life, environmental pollution, replacing chemical cell needs
A large amount of human and material resources are wasted, therefore, it is necessary to seek a kind of sustainable power supply technique chemical cell is replaced to power.
Currently used is the mode for converting the vibrational energy in environment to electric energy, generally comprises electromagnetic type, electrostatic, pressure
Electric-type, piezoelectric type collector utilize piezoelectric effect, simple in structure, open power supply without electromagnetic interference, without additional plan, have
The compatibility of good MEMS is easy to be miniaturized, so can replace traditional change using piezoelectric type energy collector
It learns battery and solves the problems, such as low power dissipation electron equipment self-powered.
Traditional piezoelectric type energy collector toughness of material is poor, not high to the susceptibility of extraneous vibration, is not easy deformation, device
Effective length it is shorter, cause energy conversion efficiency low, working frequency is single, and frequency band is narrow, wastes the vibration outside working frequency
Energy.
Invention content
To solve the above problems, the purpose of the present invention is to provide one kind be based on spiral helicine energy collecting device, toughness compared with
It is good, can significantly deformation, while using the spiral helicine structure of piezoelectric material so that effective length increases, it is easier to vibrate.
Technical solution is used by the present invention solves the problems, such as it：
One kind is based on spiral helicine energy collecting device, including piezoelectric patches, the electric energy that piezoelectric patches generates is transmitted the
One flexible PCB and the second flexible PCB and mass block for generating vibration, are provided with helical region on the piezoelectric patches
Domain, the piezoelectric patches are set to the first flexible PCB, among the second flexible PCB, and the piezoelectric patches includes for fixing
Fixing end and vibration end, the vibration end reach the first flexible PCB, outside the second flexible PCB, the mass block
It is fixed in vibration end, the vibration outside the mass block reception simultaneously drives piezoelectric patches vibration to produce electricl energy.
Further, more than two coil regions are provided on the piezoelectric patches, the coil region arranged type setting exists
On piezoelectric patches, the coil region is to be respectively screw the helical form area formed to central point as starting point using four angles of square
Domain.Increase effective length, it is easier to vibrate, the corresponding frequency band of resonance can be widened.
Further, the piezoelectric patches is the piezoelectric patches with coil region being cut into using laser cutting machine.
Further, the piezoelectric patches is piezoelectric ceramics.
Further, first flexible PCB, the second flexible PCB are using polyimides or polyester film as base
Flexible PCB made of material.Flexible PCB can reinforce toughness, the external world generate vibration when, can significantly deformation, externally
The vibration on boundary is also more sensitive.
Further, the mass block includes two or more mass block, and the mass block is separately positioned on arranged type
In the vibration end of coil region side.Use double quality blocks design can with the intrinsic frequency of relatively low energy collecting device,
Mass block can make vibration become fiercer simultaneously.
Further, the mass block is made of metal or silicon.
Further, the lower surface of first flexible PCB and the upper surface of the second flexible PCB are coated with conduction
Glue, the piezoelectric patches are fixed on by conducting resinl among the first flexible PCB and the second flexible PCB.It will by conducting resinl
Piezoelectric patches is fixed among the first flexible PCB and the second flexible PCB so that piezoelectric patches can bear shaking for greater strength
It is dynamic.
The beneficial effects of the invention are as follows：One kind that the present invention uses is based on spiral helicine energy collecting device, on piezoelectric patches
It is designed with coil region, increases the effective length of energy collecting device, is more prone to vibrate, while being provided with two pieces of flexible circuits
Plate clamps piezoelectric patches, can improve the toughness of energy collecting device itself, can significantly deformation, to vibrate it is also more quick
Sense, and mass block is set in the vibration end of piezoelectric patches, the vibration outside mass block reception simultaneously drives piezoelectric patches to vibrate, to
Vibrational energy can be converted into electric energy by piezoelectric patches.
Description of the drawings
The invention will be further described with example below in conjunction with the accompanying drawings.
Fig. 1 is a kind of front view based on spiral helicine energy collecting device of the present invention；
Fig. 2 is the vertical view of piezoelectric patches of the present invention.
Specific implementation mode
- Fig. 2 referring to Fig.1, one kind of the invention are based on spiral helicine energy collecting device, are divided into three-decker, from top to bottom
Respectively the first flexible PCB 2, piezoelectric patches 1, the second flexible PCB 3, the first flexible PCB 2 and the second flexible PCB
3 are clipped in the middle piezoelectric patches 1, and one end of piezoelectric patches 1 is fixing end 11 and the first flexible PCB 2, the second flexible PCB 3
One end be used to be fixed, the other end of piezoelectric patches 1 reach the first flexible PCB 2, the second flexible PCB 3 it is outer
The part in portion, stretching is vibration end 12, and mass block 4 is provided in vibration end 12, when external environment has vibration, positioned at shaking
The mass block 4 of moved end 12 can also vibrate and piezoelectric patches 1 is driven to vibrate therewith, to which vibrational energy can be converted into electricity by piezoelectric patches 1
Energy.
The one piece of piezoelectric material of the piezoelectric patches 1 of the present invention not just only, the present invention exist by using laser cutting machine
It is cut into multiple coil regions on limited piezoelectric patches 1, the effective length of entire piezoelectric patches 1 can be made longer, so as to
The intrinsic frequency resonant frequency for reducing energy collecting device, under the effect of identical dynamic excitation, the longer piezoelectric patches of effective length 1 is more
Larger winding degree is easy tod produce, the conversion frequency of energy collecting device is also higher.
Specifically, the concrete structure of spiral helicine piezoelectric patches 1 of the invention is：6 helical regions are provided on piezoelectric patches 1
Domain is divided into two rows with 3 coil regions for a row, and each coil region is to divide using four angles of square or rectangle as starting point
For other spiral to center and helical regions made of connecting, pressure can be increased by piezoelectric patches 1 coil region being arranged
The effective length of electric piece 1, it is easier to vibrate, while the corresponding frequency band of resonance can be widened.
Certainly, piezoelectric patches 1 of the invention is not limited to 6 coil regions, and specific quantity and arrangement mode can be with
It is set according to actual conditions.
The piezoelectric patches 1 that the present invention uses can also equally be replaced for piezoelectric ceramics PZT-5A using other piezoelectric materials
For piezoelectric ceramics used in the present invention.
The hard circuit board that the piezoelectric type energy collector of transmission is typically all, this is resulted in during vibration,
The toughness of energy collecting device is poor, the amplitude very little of vibration, leads to the less efficient of conversion.
And the present invention is by the design of flexible circuit board, flexibility is preferable, and when the external world generates vibration, piezoelectric patches 1 shakes
Dynamic amplitude is larger, is also improved therewith to the susceptibility of vibration, so transfer efficiency is also higher.
And according to piezoelectric effect, when the frequency of extraneous vibration and the intrinsic frequency resonant frequency of energy collecting device device reach
When consistent, the voltage of energy collecting device output reaches maximum value, and the output voltage at other frequencies can strongly reduce, so,
In order to improve transfer efficiency, it is necessary to which the frequency height of extraneous vibration, or will to consistent with the intrinsic frequency of energy collecting device
The intrinsic frequency of energy collecting device reduces, in above two mode, since the frequency of extraneous vibration has uncontrollability, so can
Energy collecting device is improved in a manner of using the intrinsic frequency of energy collecting device is reduced.
Specifically, the present invention is provided with two mass blocks 4 in the vibration end 12 of piezoelectric patches 1, and two mass blocks 4 are located at
The end of two rows of coil regions, that is, in vibration end 12, two mass blocks 4 can drive two on piezoelectric patches 1 respectively
Coil region vibration is arranged, to which piezoelectric patches 1 can carry out the conversion of energy, and mass block 4 is arranged to the vibration end in piezoelectric patches 1
12 can greatly reduce the intrinsic frequency of energy collecting device, and extraneous vibration can be allow more easily to reach energy
The intrinsic frequency of collector, to improve the transfer efficiency of energy collecting device.
Certainly, the design of mass block 4 is not limited to two, the electricity needed for equipment that can specifically power as needed
Energy size is set, and is set according to the quantity of set coil region, and is shaken to preferably receive the external world
Dynamic, the present invention is using mass block 4 made of metal either silicon.
Specifically, the present invention uses the first flexible PCB 2, the second flexible PCB 3 are with polyimides or poly-
Ester film is flexible PCB made of base material, and flexible PCB flexibility made of such material is preferable, and in the external world, generation is shaken
When dynamic, can significantly deformation, it is also more sensitive to extraneous vibration.
Polyimides and polyester film are common flexible material, and flexibility is good, can significantly deformation, so by it
It applies on the flexible PCB of the present invention, the flexibility of the present invention can be increased substantially, it can significantly deformation.
Specifically, the lower surface of the first flexible PCB 2 and the upper surface of the second flexible PCB 3 are coated with conducting resinl,
Piezoelectric patches 1 is fixed on by conducting resinl among the first flexible PCB 2 and the second flexible PCB 3 so that piezoelectric patches 1 can be held
It is vibrated by greater strength.
The above, only presently preferred embodiments of the present invention, the invention is not limited in the above embodiments, as long as
It reaches the technique effect of the present invention with identical means, should all belong to the scope of protection of the present invention.
Claims (8)
1. one kind being based on spiral helicine energy collecting device, it is characterised in that：The electricity generated including piezoelectric patches (1), by piezoelectric patches (1)
The first flexible PCB (2) and the second flexible PCB (3) that can be transmitted and the mass block (4) for generating vibration,
Coil region is provided on the piezoelectric patches (1), the piezoelectric patches (1) is set to the first flexible PCB (2), the second flexible electrical
Road plate (3) is intermediate, and the piezoelectric patches (1) includes fixing end for fixing (11) and vibration end (12), the vibration end
(12) it is external that the first flexible PCB (2), the second flexible PCB (3) are reached, the mass block (4) is fixed at vibration
It holds on (12), the vibration outside mass block (4) reception simultaneously drives piezoelectric patches (1) vibration to produce electricl energy.
2. according to claim 1 a kind of based on spiral helicine energy collecting device, it is characterised in that：The piezoelectric patches (1)
On be provided with more than two coil regions, the coil region arranged type is arranged on piezoelectric patches (1), and the coil region is
Using four angles of square the helical regions formed to central point are respectively screw as starting point.
3. according to claim 1 a kind of based on spiral helicine energy collecting device, it is characterised in that：The piezoelectric patches (1)
For the piezoelectric patches (1) with coil region being cut into using laser cutting machine.
4. being based on spiral helicine energy collecting device according to any described one kind of claim 1-3, it is characterised in that：The piezoelectricity
Piece (1) is piezoelectric ceramics.
5. according to claim 1 a kind of based on spiral helicine energy collecting device, it is characterised in that：First flexible electrical
Road plate (2), the second flexible PCB (3) are using polyimides or polyester film as flexible PCB made of base material.
6. according to claim 2 a kind of based on spiral helicine energy collecting device, it is characterised in that：The mass block (4)
Including two or more mass blocks (4), the mass block (4) is separately positioned on the vibration end of the coil region side of arranged type
(12) on.
7. one kind according to claim 1 or 6 is based on spiral helicine energy collecting device, it is characterised in that：The mass block
(4) metal or silicon is used to be made.
8. according to claim 1 a kind of based on spiral helicine energy collecting device, it is characterised in that：First flexible electrical
The lower surface of road plate (2) and the upper surface of the second flexible PCB (3) are coated with conducting resinl, and the piezoelectric patches (1) passes through conduction
Glue is fixed on the first flexible PCB (2) and the second flexible PCB (3) is intermediate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810214425.0A CN108566118A (en) | 2018-03-15 | 2018-03-15 | One kind being based on spiral helicine energy collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810214425.0A CN108566118A (en) | 2018-03-15 | 2018-03-15 | One kind being based on spiral helicine energy collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108566118A true CN108566118A (en) | 2018-09-21 |
Family
ID=63531751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810214425.0A Pending CN108566118A (en) | 2018-03-15 | 2018-03-15 | One kind being based on spiral helicine energy collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108566118A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064745A (en) * | 2010-11-15 | 2011-05-18 | 中国人民解放军国防科学技术大学 | Bistable piezoelectric cantilever beam vibrator device |
| CN102710168A (en) * | 2012-05-21 | 2012-10-03 | 西安交通大学 | Low-frequency multidirectional vibration energy recovery device |
| CN103944448A (en) * | 2014-04-10 | 2014-07-23 | 南京邮电大学 | Piezoelectric cantilever beam energy harvester |
| CN107395063A (en) * | 2017-09-13 | 2017-11-24 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Energy collecting device |
-
2018
- 2018-03-15 CN CN201810214425.0A patent/CN108566118A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064745A (en) * | 2010-11-15 | 2011-05-18 | 中国人民解放军国防科学技术大学 | Bistable piezoelectric cantilever beam vibrator device |
| CN102710168A (en) * | 2012-05-21 | 2012-10-03 | 西安交通大学 | Low-frequency multidirectional vibration energy recovery device |
| CN103944448A (en) * | 2014-04-10 | 2014-07-23 | 南京邮电大学 | Piezoelectric cantilever beam energy harvester |
| CN107395063A (en) * | 2017-09-13 | 2017-11-24 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Energy collecting device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180921 |