CN106787934B - Magnetic-type multistable dielectric elastomer energy converter - Google Patents
Magnetic-type multistable dielectric elastomer energy converter Download PDFInfo
- Publication number
- CN106787934B CN106787934B CN201611049968.9A CN201611049968A CN106787934B CN 106787934 B CN106787934 B CN 106787934B CN 201611049968 A CN201611049968 A CN 201611049968A CN 106787934 B CN106787934 B CN 106787934B
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- clamping plate
- dielectric elastomer
- counterdie
- elastomer film
- teleblem
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- 229920002595 Dielectric elastomer Polymers 0.000 title claims abstract description 80
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 230000005284 excitation Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 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
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
-
- 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
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/04—Constructional details
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- Transducers For Ultrasonic Waves (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
A kind of magnetic-type multistable dielectric elastomer energy converter, including：Upper dielectric elastomer film, lower dielectric elastomer film, mobile bar and moving magnet, wherein：Upper dielectric elastomer film both ends are connected with counterdie clamping plate and upper teleblem clamping plate respectively, the both ends of lower dielectric elastomer film are connected with lower counterdie clamping plate and lower teleblem clamping plate respectively, upper teleblem clamping plate is connected with lower teleblem clamping plate by moving magnet, and annular magnet array is equipped between upper counterdie clamping plate and lower counterdie clamping plate；It is fixed in the middle part of mobile bar at moving magnet center and is located at the inner ring center of annular magnet array simultaneously, the upper end passes through upper teleblem clamping plate, upper dielectric elastomer film and upper counterdie clamping plate, its lower end passes through lower teleblem clamping plate, lower dielectric elastomer film and lower counterdie clamping plate, the present invention keeps stable state and Non-energy-consumption, it is excessive between completion stable state under extraneous electric field excitation, while realize electric energy to mechanical conversion of energy, under the excitation of external mechanical vibrations, conversion of the mechanical energy to electric energy can be realized.
Description
Technical field
The present invention relates to a kind of technologies of field of transducer, are specifically that a kind of magnetic-type multistable dielectric elastomer changes
It can device.
Background technology
With the continuous consumption of traditional energy, the new energy-conversion technique of low energy consumption and high-energy density is subject to more and more
Concern.Piezoceramic material energy conversion efficiency under high frequency, small strain signal is higher, but to low frequencies such as tidal movements, compared with
Large deformation energy source form, coupling efficiency and generating capacity are relatively low, and material brittleness itself affects working life.
The content of the invention
The present invention is intrinsic in conjunction with dielectric elastomer mainly by buckled beam bistable structure itself for the prior art
What characteristic was realized, it can only realize two stable states and can be only done electric energy to the defects of mechanical conversion of energy, propose a kind of magnetic-type
Multistable dielectric elastomer energy converter can realize multiple stable states, and can change stable state by increasing and decreasing magnet array quantity
Quantity to meet different service conditions.
The present invention is achieved by the following technical solutions：
The present invention includes：Upper dielectric elastomer film, lower dielectric elastomer film, mobile bar and moving magnet, wherein：Upper dielectric
Elastomer film both ends are connected respectively with upper counterdie clamping plate and upper teleblem clamping plate, the both ends of lower dielectric elastomer film respectively with lower counterdie
Clamping plate is connected with lower teleblem clamping plate, and upper teleblem clamping plate is connected with lower teleblem clamping plate by moving magnet, upper counterdie clamping plate and bottom
Annular magnet array is equipped between film clamping plate；It is fixed in the middle part of mobile bar at moving magnet center and is located at annular magnet battle array simultaneously
The inner ring center of row, the upper end pass through upper teleblem clamping plate, upper dielectric elastomer film and upper counterdie clamping plate, and lower end passes through lower teleblem
Clamping plate, lower dielectric elastomer film and lower counterdie clamping plate.
The upper dielectric elastomer film and lower dielectric elastomer film are all cone.
The upper dielectric elastomer film and the dielectric constant of lower dielectric elastomer film are 5.
The annular magnet array includes the circular fixed magnet of four pieces of uniform ring cloth, and fixed magnet axial direction two sides is by magnetic
Iron splint is fixed, and radial direction is fixed by magnet installing plate.
Between the upper counterdie clamping plate and lower counterdie clamping plate be equipped with one group of annular magnet array, annular magnet array with it is upper
It is connected respectively by upper driving arm with lower driving arm between counterdie clamping plate and lower counterdie clamping plate.
Between the upper counterdie clamping plate and lower counterdie clamping plate be equipped with upper annular magnet array and lower annular magnet array, two
It is connected between group annular magnet array by connecting bracket, passes through upper driving branch between upper counterdie clamping plate and upper annular magnet array
Frame is connected, and lower counterdie clamping plate is connected with lower annular magnet array by lower driving arm.
Technique effect
Compared with prior art, the present invention using magnet repulsion and dielectric elastomer film tension balanced keep stable state and
Non-energy-consumption, it is excessive between completion stable state under extraneous electric field excitation, while electric energy is realized to mechanical conversion of energy, in extraneous machine
Under the excitation of tool vibration, conversion of the mechanical energy to electric energy can be realized, do not have bistable magnet repulsion using itself, with reference to
Dielectric elastomer inherent characteristic can realize multiple stable states, and can change the number of stable state by increasing and decreasing magnet array quantity
It measures to meet different service conditions.
Description of the drawings
Fig. 1 is bistable state energy converter stereoscopic schematic diagram；
Fig. 2 is in one sectional view of stable state for bistable state energy converter；
Fig. 3 is in two sectional view of stable state for bistable state energy converter；
Fig. 4 is annular magnet array top view；
Fig. 5 is three-stable state energy converter stereoscopic schematic diagram；
Fig. 6 is in one sectional view of stable state for three-stable state energy converter；
Fig. 7 is in two sectional view of stable state for three-stable state energy converter；
Fig. 8 is in three sectional view of stable state for three-stable state energy converter；
In figure：Counterdie clamping plate on 1,2 times counterdie clamping plates, dielectric elastomer film on 3,4 times dielectric elastomer films, on 5
Teleblem clamping plate, 6 times teleblem clamping plates, 7 moving magnets, 8 mobile bars, driving arm, 10 times driving arms, 11 connections on 9
Stent, 12 annular magnet arrays, 13 fixed magnets, 14 magnet clamping plates, 15 magnet installing plates.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
As shown in Figure 1, the present embodiment includes：Upper dielectric elastomer film 3, lower dielectric elastomer film 4, mobile bar 8 and movement
Magnet 7, wherein：Upper 3 both ends of dielectric elastomer film are connected respectively with upper counterdie clamping plate 1 and upper teleblem clamping plate 5, lower dielectric elastomer
The both ends of film 4 are connected respectively with lower counterdie clamping plate 2 and lower teleblem clamping plate 6, and upper teleblem clamping plate 5 and lower teleblem clamping plate 6 pass through movement
Magnet 7 is connected, and annular magnet array 12 is equipped between upper counterdie clamping plate 1 and lower counterdie clamping plate 2.Shifting is fixed at 8 middle part of mobile bar
It is located at 7 center of moving magnet and simultaneously the inner ring center of annular magnet array 12, the upper end passes through upper teleblem clamping plate 5, upper dielectric
Elastomer film 3 and upper counterdie clamping plate 1, lower end pass through lower teleblem clamping plate 6, lower dielectric elastomer film 4 and lower counterdie clamping plate 2.
As shown in figs. 2 to 4, the upper dielectric elastomer film 3 and lower dielectric elastomer film 4 are all taper, upper dielectric bullet
Counterdie clamping plate 1 is fixed in the bottom of property body film 3.Upper counterdie clamping plate 1 is fixed on the top of driving arm 9.Upper dielectric elastomeric
The tip of body film 3 is fixed with circular upper teleblem clamping plate 5.Lower counterdie clamping plate 2 is fixed in the bottom of lower dielectric elastomer film 4.Under
Counterdie clamping plate 2 is fixed on the lower part of lower driving arm 10.The tip of lower dielectric elastomer film 4 is fixed with circular lower teleblem clamping plate
6.Circular moving magnet 7 is connected between upper teleblem clamping plate 5 and lower teleblem clamping plate 6.The upper dielectric elastomer film and lower Jie
The dielectric constant of electric elastomer film is 5.
One group of annular magnet array 12 is equipped between the upper driving arm 9 and lower driving arm 10, forms bistable state
Energy converter, i.e., there are two stable states.Annular magnet array 12 includes four circular fixed magnets 13, and four fixed magnets 13 surround
The axis uniform ring cloth of moving magnet 7.Being fixed axially through magnet clamping plate 14 for four fixed magnets 13, it is radially fixed in magnet
In installing plate 15.
The mobile bar 8 is fixed at the center of whole device, and 8 middle part of mobile bar is fixedly linked with moving magnet 7.It moves
Moving magnet 7 drives mobile bar 8 to slide up and down.
Realize electric energy to mechanical energy transfer process be：It is in state as shown in Figure 2 when bistable state energy converter is initial
Stable state one, upper dielectric elastomer film 3 and lower dielectric elastomer film 4 do not receive external voltage, upper dielectric elastomer film 3 at this time
It balances each other with lower dielectric elastomer film 4 to the pulling force and fixed magnet 13 of moving magnet 7 to the repulsion of moving magnet 7.To upper Jie
Electric elastomer film 3 applies 7000V voltages, and upper dielectric elastomer film 3 generates eigenstrain, causes on dielectric elastomer film 3
Pulling force is reduced rapidly, and lower dielectric elastomer film 4 is not subject to environmental stimuli then to descend dielectric elastomer film still in Pre strained state
4 pull down rapidly moving magnet 7, and rest on state as shown in Figure 3 and stable state two.Since mobile bar 8 and moving magnet 7 are solid
Fixed connection, moving magnet 7 drive 8 synchronizing moving of mobile bar.After removing the voltage on dielectric elastomer film 3, energy converter will be tieed up
Hold the state in stable state two.Apply voltage on lower dielectric elastomer film 4, moving magnet 7, which moves up, is restored to stable state one
State.
Realize that the process that mechanical energy is converted to electric energy is：Original state, that is, stable state once, upper dielectric elastomer film 3 not by
To external voltage, lower dielectric elastomer film 4 is connected with low-tension supply, its surface is made to be distributed a certain amount of charge.Then, lower dielectric
Elastomer film 4 and low-tension supply disconnect, and external force promotes mobile bar 8 to move downward so that the bullet of lower 4 elasticity of dielectric elastomer film
Property recover, charges of different polarity separation, same sex charge is close, and Maxwell's electrostatic force does negative work, and voltage increases so that mechanical energy converts
For electric energy, the high voltage electric energy on lower dielectric elastomer film 4 passes through circuit export storage or uses.When be restored to stable state for the moment, on
Mechanical energy is converted into electric energy by dielectric elastomer film 3.Whole device can be used as valve or linear actuator.
Compared with prior art, the present apparatus does not have bistable magnet repulsion using itself, consolidates with reference to dielectric elastomer
There is characteristic, can realize two stable states, stable state holding is kept using the repulsion of magnet and the tension balanced of dielectric elastomer film
Stable state and Non-energy-consumption under extraneous electric field excitation, are completed excessive between stable state, while realize electric energy to machinery conversion of energy,
Under the excitation of external mechanical vibrations, conversion of the mechanical energy to electric energy can be realized.
Embodiment 2
As shown in figure 5, the present embodiment includes：Upper dielectric elastomer film 3, lower dielectric elastomer film 4, mobile bar 8 and movement
Magnet 7, wherein：Upper 3 both ends of dielectric elastomer film are connected respectively with upper counterdie clamping plate 1 and upper teleblem clamping plate 5, lower dielectric elastomer
The both ends of film 4 are connected respectively with lower counterdie clamping plate 2 and lower teleblem clamping plate 6, and upper teleblem clamping plate 5 and lower teleblem clamping plate 6 pass through movement
Magnet 7 is connected, and is set between upper counterdie clamping plate 1 and lower counterdie clamping plate 2 there are two annular magnet array 12, that is, descends annular magnet array
12 and upper annular magnet array 12.8 middle part of mobile bar is fixed at 7 center of moving magnet and is located at annular magnet array 12 simultaneously
Inner ring center, the upper end pass through upper teleblem clamping plate 5, upper dielectric elastomer film 3 and upper counterdie clamping plate 1, lower end pass through lower top
Film clamping plate 6, lower dielectric elastomer film 4 and lower counterdie clamping plate 2.
The present embodiment compared with Example 1 the difference is that：
As can be seen from figures 6 to 8, it is connected between two groups of annular magnet arrays 12 by connecting bracket 11, the ring on top
12 top of shape magnet array is connected with upper driving arm 9, and 12 lower part of annular magnet array of lower part is connected with lower driving arm 10,
It realizes three-stable state energy converter, forms three stable state, that is, stable states one, stable state two and stable state three.
As shown in fig. 6, energy converter at this time is in stable state one, upper dielectric elastomer film 3 and lower dielectric elastomer film 4 do not have
Have and be subject to extraneous voltage, moving magnet 7 is in equilibrium state.When applying a 500V voltages to upper dielectric elastomer film 3, upper Jie
Electric elastomer film 3 generates strain, and moving magnet 7 is moved down into stable state two-state as shown in Figure 7.When high voltage arrives
During 7000V, moving magnet 7 continues to move downward so that entire energy converter reaches the state of the stable state three in Fig. 8.Likewise,
Applying two different voltages on lower dielectric elastomer film 4 can cause energy converter to be restored to stable state two or stable state one.This implementation
Device in example can be used as trend energy collecting device.
Compared with Example 1, the present embodiment further has technical effect that：There are three stable position, prisoner can bandwidth phase
To bistable state bigger, prisoner can be more efficient.
Claims (3)
1. a kind of magnetic-type multistable dielectric elastomer energy converter, which is characterized in that including：Upper dielectric elastomer film, lower dielectric
Elastomer film, mobile bar and moving magnet, wherein：Upper dielectric elastomer film both ends are connected with counterdie clamping plate and upper teleblem folder respectively
Plate, the both ends of lower dielectric elastomer film are connected with lower counterdie clamping plate and lower teleblem clamping plate, upper teleblem clamping plate and lower teleblem clamping plate respectively
It is connected by moving magnet, annular magnet array is equipped between upper counterdie clamping plate and lower counterdie clamping plate；It is fixed in the middle part of mobile bar
It is located at moving magnet center and simultaneously the inner ring center of annular magnet array, the upper end passes through upper teleblem clamping plate, upper dielectric bullet
Property body film and upper counterdie clamping plate, lower end passes through lower teleblem clamping plate, lower dielectric elastomer film and lower counterdie clamping plate；
The upper dielectric elastomer film and lower dielectric elastomer film are all cone；The bottom of the upper dielectric elastomer film
Counterdie clamping plate is fixed on, upper counterdie Boards wall is fixed in the top of upper driving arm, the tip of upper dielectric elastomer film
Lower counterdie clamping plate is fixed in circular upper teleblem clamping plate, the bottom of lower dielectric elastomer film, and lower counterdie Boards wall is in lower driving
The lower part of stent, the tip of lower dielectric elastomer film are fixed with circular lower teleblem clamping plate；
The annular magnet array is any one following structure：
One group of annular magnet array, annular magnet array and upper counterdie are equipped between the upper counterdie clamping plate and lower counterdie clamping plate
It is connected respectively by upper driving arm with lower driving arm between clamping plate and lower counterdie clamping plate, either：
Upper annular magnet array and lower annular magnet array, two groups of rings are equipped between the upper counterdie clamping plate and lower counterdie clamping plate
It is connected between shape magnet array by connecting bracket, passes through upper driving arm phase between upper counterdie clamping plate and upper annular magnet array
Even, lower counterdie clamping plate is connected with lower annular magnet array by lower driving arm.
2. magnetic-type multistable dielectric elastomer energy converter according to claim 1, it is characterized in that, the upper dielectric bullet
Property body film and lower dielectric elastomer film dielectric constant be 5.
3. magnetic-type multistable dielectric elastomer energy converter according to claim 2, it is characterized in that, the annular magnet
Array includes the circular fixed magnet of four pieces of uniform ring cloth, and fixed magnet axial direction two sides is by magnet Boards wall, and radial direction is by magnetic
Iron installing plate is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049968.9A CN106787934B (en) | 2016-11-24 | 2016-11-24 | Magnetic-type multistable dielectric elastomer energy converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049968.9A CN106787934B (en) | 2016-11-24 | 2016-11-24 | Magnetic-type multistable dielectric elastomer energy converter |
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| Publication Number | Publication Date |
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| CN106787934A CN106787934A (en) | 2017-05-31 |
| CN106787934B true CN106787934B (en) | 2018-05-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107362963B (en) * | 2017-07-16 | 2019-07-05 | 上海交通大学 | Impact enhanced dielectric elastomer vibrator |
| CN112698202B (en) * | 2020-12-24 | 2022-04-22 | 西安交通大学 | Low-frequency vibration power generation test device and test method based on dielectric elastomer |
| CN113464359B (en) * | 2021-07-22 | 2022-12-06 | 北京朗诺科技有限公司 | Bladeless wind power generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2271668A (en) * | 1992-05-29 | 1994-04-20 | Westinghouse Electric Corp | Bistable magnetic actuator |
| US6828887B2 (en) * | 2002-05-10 | 2004-12-07 | Jpmorgan Chase Bank | Bistable microelectromechanical system based structures, systems and methods |
| US7521840B2 (en) * | 2005-03-21 | 2009-04-21 | Artificial Muscle, Inc. | High-performance electroactive polymer transducers |
| CN103563236A (en) * | 2011-03-09 | 2014-02-05 | 拜耳知识产权有限责任公司 | Electroactive polymer energy converter |
| US8853916B2 (en) * | 2011-09-30 | 2014-10-07 | GM Global Technology Operations LLC | Reconfigurable bi-stable device |
| WO2013082578A1 (en) * | 2011-12-03 | 2013-06-06 | Thomas Krupenkin | Method and apparatus for mechanical energy harvesting using combined magnetic and microfluidic energy generation |
| KR102009992B1 (en) * | 2012-11-30 | 2019-08-12 | 삼성전자주식회사 | Energy harvesting device |
| CN203775077U (en) * | 2013-10-10 | 2014-08-13 | 浙江大学 | Bistable actuator |
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