CN110198145A - Multistable vibrational energy captures structure - Google Patents
Multistable vibrational energy captures structure Download PDFInfo
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- CN110198145A CN110198145A CN201910564294.3A CN201910564294A CN110198145A CN 110198145 A CN110198145 A CN 110198145A CN 201910564294 A CN201910564294 A CN 201910564294A CN 110198145 A CN110198145 A CN 110198145A
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- magnet
- sliding slot
- cantilever beam
- multistable
- permanent magnet
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- 230000000694 effects Effects 0.000 claims abstract description 14
- 239000011148 porous material Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000737 periodic effect Effects 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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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention discloses a kind of multistable vibrational energies to capture structure, including support, holder top and bottom are separately installed with clamping plate and sliding slot；Wherein, clamping plate includes left clamp and right clamping plate, and cantilever beam is fixed by bolts between left clamp and right clamping plate, and cantilever beam end is connected with end permanent magnet；Sliding slot side is equipped with elongated pore, is equipped with magnet vessel in sliding slot, bottom permanent magnet is installed in magnet vessel.The present invention realizes multistable effect by introducing non-linear magnetic force, effectively increases the working band of energy capture efficiency and energy capture device.Non-linear magnetic force is introduced by installing several bottom permanent magnets in sliding slot, generates multistable effect using non-linear magnetic force, under extraneous incentive action, cantilever beam vibrates, and in cantilever beam vibration processes, is based on direct piezoelectric effect, converts vibrational energy into electric energy.The present invention is easily achieved and adjusts multistable configuration, can effectively improve energy capture efficiency and widen the working band of energy capture device.
Description
Technical field
The invention belongs to the technical fields of energy capture, and in particular to a kind of multistable vibrational energy capture structure.
Background technique
With the development of modern electronic technology, the microsensor and MEMS of low energy consumption are widely used in wirelessly passing
Feel the various aspects of the social life such as network, environmental monitoring, Internet of Things and monitoring structural health conditions.Currently, such miniature electronic is set
Standby mainly to use traditional chemical battery-powered, still, traditional chemical battery is short there are the service life, has pollution and periodic replacement to environment
Disadvantage at high cost.
Green low-carbon environment-friendly becomes the inexorable trend of future social development, and renewable energy has obtained country and society
Pay much attention to.Energy capture technology is to turn energy various forms of in environment, such as luminous energy, wind energy, thermal energy and vibrational energy
It turns to electric energy and is stored.A kind of energy that vibrational energy is widely present as nature is based on direct piezoelectric effect or electromagnetism
Induction law is translated into electric energy and is stored and used, and is a kind of effective way of energy capture.
The efficiency for how improving energy capture becomes one of Recent study hot spot.Traditional linear energy catcher work
Make band limiting, only can just there is higher energy capture efficiency near its resonant frequency.However, vibration source is often in environment
Wide band random vibration, frequency matching are difficult to realize.In order to improve energy capture device in wide band extraneous vibration source forcing
Under energy capture efficiency, based on magnetic force nonlinear energy capture structure obtained numerous energy capture technical field researchers'
Concern.
It is characterized in improving the frequency of energy capture device at present by introducing the enabled amount catcher formation multistable of non-linear magnetic force
Common method with characteristic.However, the multistable effect of existing multistable energy capture structure is not easy to realize and is difficult to adjust,
There is problem in practical applications.
Summary of the invention
Technical problems to be solved:
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of multistable vibrational energy capture structure, pass through
Non-linear magnetic force forms multistable feature, improves energy capture efficiency.It is of the invention compared to energy capture device common at present
Energy capture is more efficient, and working band is wider, and the realization and adjusting of multistable configuration are more convenient.
The technical scheme is that a kind of multistable vibrational energy captures structure, it is characterised in that: including support, folder
Plate, cantilever beam, sliding slot, end permanent magnet, N number of bottom permanent magnet and N number of magnet vessel, N >=3；
For fixing and supporting whole device, the sliding slot level is fixed on the support support；The sliding slot
For hollow and upper end opening rectangular parallelepiped structure, two relatively short sides of open end are cancave cambered surface；The bottom permanent magnet is
Block structure is installed in the magnet vessel, and is fixed on open end along the sliding slot cancave cambered surface by magnet vessel；
The cantilever beam is fixed on the center on the support and being located at right above the sliding slot by the clamping plate vertically
Place, top are connect with Boards wall, and end is fixed with end permanent magnet；Bottom in the end permanent magnet and the sliding slot
Permanent magnet is oppositely arranged, i.e., opposite face is that identical polar can generate repulsion, guarantees the end of its end when the cantilever beam vibration
Portion's permanent magnet remains unchanged at a distance from sliding slot cancave cambered surface, further identical at a distance from each bottom permanent magnet；The cantilever beam
Surface has piezoelectric material, converts vibrational energy into electric energy by direct piezoelectric effect when vibration.
A further technical solution of the present invention is: the support is L-shaped structure, the sliding slot is fixed on L shape base-plate
Upper surface, the clamping plate is fixed by bolts on L shape support medial surface；The clamping plate includes left clamp and right clamping plate,
For L shaped plate, the cantilever beam is fixed by bolts between the left clamp and right clamping plate, by adjusting cantilever mounted beam with
The vertical position of the bolt of clamping plate further adjusts the vertical position of cantilever beam；By adjusting the fixation clamping plate and L shape support
The horizontal position of the bolt of medial surface further adjusts the horizontal position of cantilever beam.
A further technical solution of the present invention is: the magnet vessel is hollow and upper end opening box body structure, it is described
Bottom permanent magnet is fixed on its open end；Coaxially be provided with through-hole in the opposite box wall in the magnet vessel lower end two, for across
Studs；With respect to tapped through hole is coaxially provided in box wall, each one angle of installation adjusts magnet vessel lower end another two
The studs is sandwiched between two angle adjusting screws by screw, for tightening the fixed studs, into one
Angle of the magnet vessel described in step section relative to the sliding slot；
It is provided with elongated pore below two cancave cambered surfaces of the sliding slot, the elongated pore is arranged in parallel with the cancave cambered surface,
And radian is identical；The studs is stretched out to the elongated pore for partially passing through two sides of the magnet vessel, and is twisted by nut
It fastens.
A further technical solution of the present invention is: the bottom permanent magnet and the magnet vessel are interference fit.
A further technical solution of the present invention is: the support is made of aluminum alloy materials, the cantilever beam is by stainless steel
Material is made, and the end permanent magnet is ndfeb magnet.
Beneficial effect
The beneficial effects of the present invention are: the present invention realizes multistable effect by introducing non-linear magnetic force, effectively improves
The working band of energy capture efficiency and energy capture device.It is non-linear by installing several bottom permanent magnets introducings in sliding slot
Magnetic force generates multistable effect using non-linear magnetic force, and under extraneous incentive action, cantilever beam vibrates, cantilever beam vibration
In the process, it is based on direct piezoelectric effect, converts vibrational energy into electric energy.
The sliding slot that concaved circular cambered surface is had by designing, make in cantilever beam vibration processes the concaved circular cambered surface of its end and sliding slot away from
From remaining unchanged, guarantee that the magnetic force between bottom permanent magnet and end permanent magnet will not be because of bottom in cantilever beam vibration processes forever
The increase of distance between magnet and end permanent magnet and reduce so that multistable effect of the present invention is more easily implemented, improve energy
Capture efficiency is measured, this is that energy capture structure in the prior art is difficult to.Meanwhile the position by adjusting bottom permanent magnet
It sets and angle, adjustable multistable effect is to adapt to different working environments.
Detailed description of the invention
Fig. 1 is that multistable vibrational energy of the present invention captures structure three-dimensional structural schematic diagram.
Fig. 2 is magnet vessel of the present invention and studs and angle adjusting screw connection type three dimensional structure diagram.
Fig. 3 is magnet vessel of the present invention and studs and angle adjusting screw connection type sectional view.
Description of symbols: 1. supports, 2. sliding slots, 3. left clamps, 4. right clamping plates, 5. cantilever beams, 6. end permanent magnets, 7.
Magnet vessel, 8. bottom permanent magnets, 9. angle adjusting screws, 10. studs.
Specific embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to be used to explain the present invention, and cannot understand
For limitation of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of multistable vibrational energies to capture structure, including support 1,1 top of support
Clamping plate and sliding slot 2 are separately installed with bottom；Wherein, clamping plate includes left clamp 3 and right clamping plate 4, left clamp 3 and right clamping plate 4 it
Between be bolted a cantilever beam 5,5 end of cantilever beam is connected with end permanent magnet 6；2 side of sliding slot is equipped with elongated pore, sliding slot
3 magnet vessels 7 are installed in 2, bottom permanent magnet 8, studs 10 and direction adjusting screw 9 are installed in magnet vessel 7.
Support 1 is made of aluminum alloy materials, and cantilever beam 5 is made of stainless steel material, and end permanent magnet 6 is ndfeb magnet, and clamping plate is logical
Cross bolt installation on the support.Cantilever beam 5 is equipped with hole location at two, is connect by bolt penetration hole with clamping plate, 5 surface of cantilever beam is attached
There is piezoelectric material, and its end in vibration of cantilever beam 5 is constant at a distance from sliding slot 2, end permanent magnet 6 and bottom permanent magnet 8
Opposite face is identical polar, generates repulsion.
When work, support 1 is mounted on the vibration sources such as building structure or mechanical structure, support 1 is in extraneous vibration source
Excitation is lower to drive cantilever beam 5 to vibrate, and the effect due to bottom permanent magnet 8 to 6 repulsion of end permanent magnet of 5 end of cantilever beam is hanged
Arm beam 5 jumps between a variety of stable states, and the piezoelectric material of surface attachment can generate strain, converts vibrational energy into electric energy simultaneously
It is stored.By adjusting the position of position adjustable bottom permanent magnet 8 of the studs 10 in sliding slot 2, pass through adjusting
The angle of the adjustable bottom permanent magnet 8 of angle adjusting screw 9 rotation.
As shown in Fig. 2, bottom permanent magnet 8 is mounted in magnet vessel 7 by interference fit, 7 front and back through-hole of magnet vessel
Studs 10 is installed, and is between the two clearance fit, is i.e. magnet vessel 7 can be rotated around studs 10, and magnet holds
Device 7 or so is respectively equipped with direction adjusting screw 9.
As shown in figure 3, magnet vessel 7 can be rotated around studs 10, at this time when direction adjusting screw 9 does not tighten
Adjustable bottom permanent magnet 8 rotates angle；After determining that bottom permanent magnet 8 rotates angle, direction adjusting screw 9 is tightened, then magnetic
It will not relatively rotate between iron container 7 and studs 10.
The present invention proposes a kind of multistable vibrational energy capture structure, and energy capture is high-efficient, and working band is wide, structure
Simply, and it is easily achieved and is adjusted multistable effect, can replace traditional chemical battery and power to the microelectronic device of low-power consumption.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (5)
1. a kind of multistable vibrational energy captures structure, it is characterised in that: forever including support, clamping plate, cantilever beam, sliding slot, end
Magnet, N number of bottom permanent magnet and N number of magnet vessel, N >=3；
For fixing and supporting whole device, the sliding slot level is fixed on the support support；During the sliding slot is
Empty and upper end opening rectangular parallelepiped structure, two relatively short sides of open end are cancave cambered surface；The bottom permanent magnet is bulk
Structure is installed in the magnet vessel, and is fixed on open end along the sliding slot cancave cambered surface by magnet vessel；
The cantilever beam is fixed on the support and at the center being located at right above the sliding slot vertically by the clamping plate,
Its top is connect with Boards wall, and end is fixed with end permanent magnet；Bottom in the end permanent magnet and the sliding slot is forever
Magnet is oppositely arranged, i.e., opposite face is that identical polar can generate repulsion, guarantees the end of its end when the cantilever beam vibration
Permanent magnet remains unchanged at a distance from sliding slot cancave cambered surface, further identical at a distance from each bottom permanent magnet；The cantilever beam table
Face has piezoelectric material, converts vibrational energy into electric energy by direct piezoelectric effect when vibration.
2. multistable vibrational energy captures structure according to claim 1, it is characterised in that: the support is L-shaped structure, institute
The upper surface that sliding slot is fixed on L shape base-plate is stated, the clamping plate is fixed by bolts on L shape support medial surface；The folder
Plate includes left clamp and right clamping plate, is L shaped plate, by the cantilever beam be fixed by bolts in the left clamp and right clamping plate it
Between, by adjusting the vertical position of cantilever mounted beam and the bolt of clamping plate, further adjust the vertical position of cantilever beam；Pass through tune
Solidating is determined the horizontal position of the bolt of the clamping plate and L shape support medial surface, further to adjust the horizontal position of cantilever beam.
3. according to claim 1 multistable vibrational energy capture structure, it is characterised in that: the magnet vessel be it is hollow and
The box body structure of upper end opening, the bottom permanent magnet are fixed on its open end；The opposite box wall in the magnet vessel lower end two
On be coaxially provided with through-hole, for across studs；Magnet vessel lower end another two is with respect to being coaxially provided with screw thread in box wall
Through-hole is respectively installed an angle adjusting screw, the studs is sandwiched between two angle adjusting screws, for twisting
The studs is fastened, angle of the magnet vessel relative to the sliding slot is further adjusted；
It is provided with elongated pore below two cancave cambered surfaces of the sliding slot, the elongated pore is arranged in parallel with the cancave cambered surface, and arc
It spends identical；The studs is stretched out to the elongated pore for partially passing through two sides of the magnet vessel, and is tightened admittedly by nut
It is fixed.
4. according to claim 1 multistable vibrational energy capture structure, it is characterised in that: the bottom permanent magnet with it is described
Magnet vessel is interference fit.
5. multistable vibrational energy captures structure according to claim 1, it is characterised in that: the support is by aluminum alloy materials
It is made, the cantilever beam is made of stainless steel material, and the end permanent magnet is ndfeb magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910564294.3A CN110198145B (en) | 2019-06-27 | 2019-06-27 | Multistable vibration energy trapping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910564294.3A CN110198145B (en) | 2019-06-27 | 2019-06-27 | Multistable vibration energy trapping structure |
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| Publication Number | Publication Date |
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| CN110198145A true CN110198145A (en) | 2019-09-03 |
| CN110198145B CN110198145B (en) | 2020-05-01 |
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| CN201910564294.3A Active CN110198145B (en) | 2019-06-27 | 2019-06-27 | Multistable vibration energy trapping structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342699A (en) * | 2020-04-01 | 2020-06-26 | 太原理工大学 | Dynamic magnetic coupling-based galloping energy collection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849752A (en) * | 2017-04-13 | 2017-06-13 | 上海交通大学 | Flow vibration electricity energy harvester based on Biomimetic Fish |
| CN106877739A (en) * | 2017-01-18 | 2017-06-20 | 上海交通大学 | The multidirectional pull-type bistable state vibrational energy catcher of magnetic |
| CN207033642U (en) * | 2017-06-19 | 2018-02-23 | 苏州大学 | A kind of wave-energy power generation equipment |
| CN108400724A (en) * | 2018-06-04 | 2018-08-14 | 浙江工商大学 | A kind of piezoelectric vibration energy harvester |
| CN108847788A (en) * | 2018-08-01 | 2018-11-20 | 南京邮电大学 | One kind being based on multistable piezoelectric harvester |
| CN109831118A (en) * | 2019-01-25 | 2019-05-31 | 天津大学 | A kind of non-linear piezoelectric vibration energy collector of beam type |
-
2019
- 2019-06-27 CN CN201910564294.3A patent/CN110198145B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877739A (en) * | 2017-01-18 | 2017-06-20 | 上海交通大学 | The multidirectional pull-type bistable state vibrational energy catcher of magnetic |
| CN106849752A (en) * | 2017-04-13 | 2017-06-13 | 上海交通大学 | Flow vibration electricity energy harvester based on Biomimetic Fish |
| CN207033642U (en) * | 2017-06-19 | 2018-02-23 | 苏州大学 | A kind of wave-energy power generation equipment |
| CN108400724A (en) * | 2018-06-04 | 2018-08-14 | 浙江工商大学 | A kind of piezoelectric vibration energy harvester |
| CN108847788A (en) * | 2018-08-01 | 2018-11-20 | 南京邮电大学 | One kind being based on multistable piezoelectric harvester |
| CN109831118A (en) * | 2019-01-25 | 2019-05-31 | 天津大学 | A kind of non-linear piezoelectric vibration energy collector of beam type |
Non-Patent Citations (1)
| Title |
|---|
| 张宇: "磁力双稳态压电悬臂梁俘能器的非线性振动特性研究", 《计算力学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342699A (en) * | 2020-04-01 | 2020-06-26 | 太原理工大学 | Dynamic magnetic coupling-based galloping energy collection device |
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