CN110071659A - A kind of T-type piezoelectric generating device and three-stable state implementation method - Google Patents
A kind of T-type piezoelectric generating device and three-stable state implementation method Download PDFInfo
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- CN110071659A CN110071659A CN201910419651.7A CN201910419651A CN110071659A CN 110071659 A CN110071659 A CN 110071659A CN 201910419651 A CN201910419651 A CN 201910419651A CN 110071659 A CN110071659 A CN 110071659A
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- piezoelectric
- piezoelectric vibrator
- stable state
- permanent magnet
- vertical
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 238000010248 power generation Methods 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005312 nonlinear dynamic Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000126 substance Substances 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
Abstract
The invention discloses a kind of T-type piezoelectric generating device and three-stable state implementation methods, are related to utilization of new energy resources and piezoelectric energy-capturing field, have many advantages, such as that structure is simple, easy to accomplish, can satisfy the demand that low power consumption electronic product persistently energizes.The device includes underbeam, upper beam, piezoelectric ceramics piece, vertical cantilever beam, horizontal boom beam and permanent magnet.The piezoelectric ceramics piece is symmetrically pasted onto each cantilever beam supporting layer two sides, the piezoelectric ceramics piece, cantilever beam and permanent magnet constitute three cantilever beam piezoelectric vibrators altogether, a respectively vertical beam piezoelectric vibrator and a pair of of horizontal beam piezoelectric vibrator, the vertical beam piezoelectric vibrator is fixedly connected on underbeam, the pair of horizontal beam piezoelectric vibrator is respectively embedded into upper beam and fixes, form double straight beam piezoelectric vibrators, the permanent magnet of double two free ends of straight beam piezoelectric vibrator is acted on due to magnetic repulsion, vertical beam piezoelectric vibrator is set to generate non-linear aperiodic vibration, form three-stable state prisoner's energy system, prisoner's energy frequency band can effectively be widened, improve power generation performance.
Description
Technical field
The invention belongs to non-linear vibration energies to capture field, and in particular to a kind of T-type piezoelectric generating device and three-stable state
Implementation method.
Background technique
It explores novel energy accumulator and has become the hot spot studied in recent years, it is intended to overcome the drawback that chemical cell is intrinsic,
Realize the lasting energy supply of green.It is our primary selection using periphery green environment power harvesting based on this.Such as: solar energy,
Wind energy, vibrational energy etc..It is well known that we are in the world of a vibration.Vibrational energy easily obtains, is easy to clean, not by ring
The limitation in border is a kind of important new green energy.Electric energy is converted by vibrational energy, is that the more satisfactory prisoner of one kind can be square
Method can be designed that the higher energy accumulator of energy conversion efficiency in conjunction with some intellectual materials (PZT, MFC etc.).
Secondly, single-degree-of-freedom linear piezoelectric prisoner's energy ineffective systems, generated energy is few, Bu Nengshi in current research
Now extensive lasting energy supply.Show in the identical situation of prisoner's energy frequency bandwidth according to theoretical research, the output of non-linear energy accumulator
Power is 16.5 times of linear energy accumulator.In research non-linear dynamic class hour, this classical system of bistable system is answered extensively
It uses in each research engineering, such as bistable circuit, bistable switch, flip and flop generator etc..However, scientists for
Increasingly complex three-stable state piezoelectric energy-capturing system understanding is less, and three-stable state vibrational energy capture system can effectively solve to work as front
Property the problems such as beam type vibrational energy capture system resonance bands are narrow, generated energy is very few, if we can further develop
Energy technology is captureed with three-stable state is grasped, primary important progress can be will be for field for prisoner.
Summary of the invention
The purpose of the present invention is to provide a kind of T-type piezoelectric generating device and three-stable state implementation methods, can be in faint excitation
Under the conditions of generate substantially Non-Linear Vibration, make its piezoelectric structure large deformation, and then convert electric energy for mechanical vibrational energy.
A kind of T-type piezoelectric generating device and three-stable state implementation method, which is characterized in that including underbeam (1), upper beam (2), pottery
Porcelain piezoelectric patches (3), vertical cantilever beam (4), horizontal boom beam (5) and permanent magnet (6).The piezoelectric ceramics piece (3) is symmetrically pasted
In each cantilever beam supporting layer two sides, the piezoelectric ceramics piece (3), horizontal (vertical) cantilever beam and permanent magnet (6) constitute three altogether
Cantilever beam piezoelectric vibrators, respectively a vertical beam piezoelectric vibrator (7) and a pair of of horizontal beam piezoelectric vibrator (8), the vertical beam piezoelectricity
Oscillator (7) is fixedly connected on underbeam (1), and the pair of horizontal beam piezoelectric vibrator (8) both ends are respectively embedded into upper beam (2) and fix, shape
Straight beam piezoelectric vibrator in pairs, the permanent magnet of double two free ends of straight beam piezoelectric vibrator make vertical beam piezoelectricity due to magnetic repulsion effect
Oscillator (7) generates non-linear aperiodic vibration, and forming three-stable state prisoner can system；
Advantages of the present invention: three-stable state vibrational energy capture system of the invention can solve current linear beam type vibrational energy
The problems such as capture system resonance bands are narrow, generated energy is very few is measured, more beam T-type structures realize that more beams generate electricity simultaneously, increase total
Generated energy, structure is simple, easy to accomplish, provides certain reference value for the research in piezoelectric energy-capturing field.
Detailed description of the invention
Fig. 1 is tomograph of the invention；
The stable state of left, center, right three when Fig. 2 is system work；
Fig. 3 is double straight beam piezoelectric vibrators with permanent magnet；
Fig. 4 is the vertical piezoelectric vibrator with permanent magnet.
Specific embodiment
Pass through specific embodiment to further illustrate the technical scheme of the present invention with reference to the accompanying drawing.
Specific embodiment: a kind of T-type piezoelectric generating device and three-stable state implementation method, which is characterized in that including underbeam
(1), upper beam (2), piezoelectric ceramics piece (3), vertical cantilever beam (4), horizontal boom beam (5) and permanent magnet (6).The piezoelectric ceramics
Piece (3) is symmetrically pasted onto each cantilever beam supporting layer two sides, the piezoelectric ceramics piece (3), horizontal (vertical) cantilever beam and permanent magnet
(6) three cantilever beam piezoelectric vibrators, respectively a vertical beam piezoelectric vibrator (7) and a pair of of horizontal beam piezoelectric vibrator (8) are constituted altogether,
The vertical beam piezoelectric vibrator (7) is fixedly connected on underbeam (1), and the pair of horizontal beam piezoelectric vibrator (8) both ends are respectively embedded into
Beam (2) is fixed, forms double straight beam piezoelectric vibrators, the permanent magnet of double two free ends of straight beam piezoelectric vibrator is due to magnetic repulsion work
With making vertical beam piezoelectric vibrator (7) to generate non-linear aperiodic vibration, forming three-stable state prisoner can system；
Working principle: referring to Fig. 2, under dynamic excitation, vertical beam piezoelectric vibrator (7) generates bending deformation, according to direct piezoelectric effect
Principle, two surfaces of electrode understand stored charges and export electric energy, and double straight beam piezoelectric vibrators are by from vertical cantilever beam (4) upper end
The magnetic repulsion of permanent magnet (6) acts on, and carries out piezo-electric generating with same form, three-stable state characteristic is presented in mechanism at this time, so that this is
System can preferably match with ambient environment vibrations frequency, improve energy capture rate.
The configuration of the present invention is simple, it is easy to accomplish, it is total can effectively to solve current linear beam type vibrational energy capture system
Shake the problems such as frequency band is narrow, generated energy is very few, plays certain impetus to the development of new energy power generation technology.
Claims (5)
1. a kind of T-type piezoelectric generating device and three-stable state implementation method, which is characterized in that including underbeam (1), upper beam (2), ceramics
Piezoelectric patches (3), vertical cantilever beam (4), horizontal boom beam (5) and permanent magnet (6)；The piezoelectric ceramics piece (3) is symmetrically pasted onto
Each cantilever beam supporting layer two sides, the piezoelectric ceramics piece (3), horizontal (vertical) cantilever beam and permanent magnet (6) constitute three altogether and hang
Arm beam piezoelectric vibrator, respectively a vertical beam piezoelectric vibrator (7) and a pair of of horizontal beam piezoelectric vibrator (8), the vertical beam piezoelectricity vibration
Sub (7) are fixedly connected on underbeam (1), and the pair of horizontal beam piezoelectric vibrator (8) both ends are respectively embedded into upper beam (2) and fix, and are formed
Double straight beam piezoelectric vibrators, the permanent magnet of double two free ends of straight beam piezoelectric vibrator make vertical beam piezoelectricity shake due to magnetic repulsion effect
Sub (7) generate non-linear aperiodic vibration, and forming three-stable state prisoner can system.
2. a kind of T-type piezoelectric generating device according to claim 1 and three-stable state implementation method, which is characterized in that double straight
Beam piezoelectric vibrator and vertical beam piezoelectric vibrator (7) T-shaped placement.
3. a kind of T-type piezoelectric generating device according to claim 1 and three-stable state implementation method, which is characterized in that vertical beam
Piezoelectric vibrator (7) is inverted pendulum structure.
4. a kind of T-type piezoelectric generating device according to claim 1 and three-stable state implementation method, which is characterized in that system
When power generation, the permanent magnet (6) of a pair of of horizontal beam piezoelectric vibrator (8) free end and the permanent magnet (6) of vertical beam piezoelectric vibrator (7) upper end
Form the stable state of left, center, right three.
5. a kind of T-type piezoelectric generating device according to claim 1 and three-stable state implementation method, which is characterized in that in cross
To when excitation, vertical beam piezoelectric vibrator (7) realizes side-to-side vibrations, and the permanent magnet of tail end can motivate a pair of of horizontal beam piezoelectric vibrator
(8) Non-Linear Vibration is generated simultaneously, realizes that three beams generate electricity simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419651.7A CN110071659A (en) | 2019-05-20 | 2019-05-20 | A kind of T-type piezoelectric generating device and three-stable state implementation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419651.7A CN110071659A (en) | 2019-05-20 | 2019-05-20 | A kind of T-type piezoelectric generating device and three-stable state implementation method |
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| CN110071659A true CN110071659A (en) | 2019-07-30 |
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| CN201910419651.7A Pending CN110071659A (en) | 2019-05-20 | 2019-05-20 | A kind of T-type piezoelectric generating device and three-stable state implementation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829895A (en) * | 2019-12-12 | 2020-02-21 | 西南交通大学 | Buckling self-adjusting piezoelectric energy recovery device |
| CN113098323A (en) * | 2021-05-24 | 2021-07-09 | 北京理工大学 | Direct-current power quantization and performance optimization method of three-stable-state energy harvester in random environment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010151738A3 (en) * | 2009-06-26 | 2011-04-21 | Virginia Tech Intellectual Properties, Inc. | Piezomagnetoelastic structure for broadband vibration energy harvesting |
| CN102790547A (en) * | 2012-07-18 | 2012-11-21 | 天津大学 | Bistable and double cantilever beam piezoelectric power generating device |
| CN104079206A (en) * | 2014-06-20 | 2014-10-01 | 西安交通大学 | Cantilever type non-linear three-stable-state device and application thereof |
| CN108847788A (en) * | 2018-08-01 | 2018-11-20 | 南京邮电大学 | One kind being based on multistable piezoelectric harvester |
-
2019
- 2019-05-20 CN CN201910419651.7A patent/CN110071659A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010151738A3 (en) * | 2009-06-26 | 2011-04-21 | Virginia Tech Intellectual Properties, Inc. | Piezomagnetoelastic structure for broadband vibration energy harvesting |
| CN102790547A (en) * | 2012-07-18 | 2012-11-21 | 天津大学 | Bistable and double cantilever beam piezoelectric power generating device |
| CN104079206A (en) * | 2014-06-20 | 2014-10-01 | 西安交通大学 | Cantilever type non-linear three-stable-state device and application thereof |
| CN108847788A (en) * | 2018-08-01 | 2018-11-20 | 南京邮电大学 | One kind being based on multistable piezoelectric harvester |
Non-Patent Citations (1)
| Title |
|---|
| YONGGANG LENG等: ""Magnetic force analysis and performance of a tri-stable piezoelectric energy harvester under random excitation"", 《JOURNAL OF SOUND AND VIBRATION》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829895A (en) * | 2019-12-12 | 2020-02-21 | 西南交通大学 | Buckling self-adjusting piezoelectric energy recovery device |
| CN113098323A (en) * | 2021-05-24 | 2021-07-09 | 北京理工大学 | Direct-current power quantization and performance optimization method of three-stable-state energy harvester in random environment |
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Application publication date: 20190730 |