CN205622542U - Nonlinearity wide band piezoelectricity vibration energy harvester - Google Patents
Nonlinearity wide band piezoelectricity vibration energy harvester Download PDFInfo
- Publication number
- CN205622542U CN205622542U CN201620204934.1U CN201620204934U CN205622542U CN 205622542 U CN205622542 U CN 205622542U CN 201620204934 U CN201620204934 U CN 201620204934U CN 205622542 U CN205622542 U CN 205622542U
- Authority
- CN
- China
- Prior art keywords
- vibration energy
- energy collector
- safety glass
- piezoelectric vibration
- energy harvester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a nonlinearity wide band piezoelectricity vibration energy harvester, is the bistable state piezoelectricity vibration energy harvester and one that receive non -linear magnetic field repulsion force by an end by the spring the elasticity that the quality constitutes is enlargied mechanism group and is become. The faint vibration displacement range among the great environment can effectively be put to nonlinearity magnetic field repulsion force and elasticity mechanism of amplification, makes bistable state piezoelectricity vibration energy harvester vibrate the amplitude than easily getting into high energy track vibration under the lower circumstances in the environment excitation, improves piezoelectricity vibration energy harvester's collection efficiency, overcomes bistable state piezoelectricity vibration energy harvester in environment excitation vibration amplitude than the defect that can only be mentally deficient track vibration under the lower circumstances, in addition, elasticity mechanism of amplification and bistable state piezoelectricity vibration energy harvester constitute one two degree of freedom nonlinear vibration system, through the governing system parameter, can effectively widen bistable state piezoelectricity vibration energy harvester's working frequency band, realize broadband vibration energy's collection and conversion.
Description
Technical field
The utility model patent belongs to new forms of energy and technical field of power generation, it is specifically related to a kind of magnetic field of merging to strengthen with elastic amplifying technique in the non-linear broadband piezoelectric vibration energy collector of one, there is the function of the conversion efficiency improving piezoelectric energy collector and working band, the available self-powered to radio sensing network node.
Background technology
Currently, wireless sensor network node self-powered problem causes the extensive concern of domestic and international experts and scholars, and piezoelectric vibration energy collector is one of effective way solving this problem.The patent application relating to piezoelectric vibration energy collector both at home and abroad is also a lot, but the piezoelectric vibrator of these collectors is mostly linear, and working band is narrow, and energy conversion efficiency is on the low side.To this end, the bistable state piezoelectric vibration energy collector using Non-Linear Ocsillation technological maheup is one of main method improving linear piezoelectric vibration energy collector output performance.As Chinese utility model patent 200910195782.8 proposes the Miniature wide frequency piezoelectric vibration energy collector based on bistable state raising structure, can realize the high-power output in wideband oscillating region.Bistable state piezoelectric vibration energy collector has three significant working regions, the amplitude periodic vibration of the respectively small magnitude periodic vibration of low energy track, chaotic vibration and High-Energy Orbit.When the excitation amplitude of collector is less, external drive energy cannot make collector overcome the inhibition of potential energy well, and makees the small magnitude periodic vibration of low energy track in certain equipoise, now, bistable state piezoelectric vibration energy collector becomes linear energy collector, and output performance is relatively low；When the excitation amplitude of collector is bigger, external drive energy makes collector escape the inhibition of potential energy well, and in the amplitude periodic vibration of the intercropping High-Energy Orbit of two equipoises, the output performance of energy collecting device significantly improves.But the level of vibration in environment is often relatively low, being not enough to the amplitude periodic vibration encouraging bistable state piezoelectric vibration energy collector to enter High-Energy Orbit, this makes the application of bistable state piezoelectric vibration energy collector be severely limited.
Utility model content
In order to solve above-mentioned technical problem present in prior art, the utility model provides a kind of non-linear broadband piezoelectric vibration energy collector, strengthened and elastic method technology by merging magnetic field, bistable state piezoelectric vibration energy collector is made can easily to enter the amplitude periodic vibration of High-Energy Orbit in the case that environmental excitation level is relatively low, the problem low to solve existing bistable state piezoelectric vibration energy collector output performance when extraneous vibration is fainter.
The utility model patent adopted implementation scheme is that
A kind of non-linear broadband piezoelectric vibration energy collector, being made up of by the piezoelectric bimorph cantilever beam of non-linear magnetic field repulsive force, spiral microadjuster, the U-shaped frame of safety glass, spring, base and clamp nut end, described piezoelectric bimorph cantilever beam, spiral microadjuster and the U-shaped frame of safety glass constitute bistable state piezoelectric vibration energy collector；The U-shaped frame of described safety glass, spring and base constitute elastic enlarger, and described bistable state piezoelectric vibration energy collector connects into non-linear broadband piezoelectric vibration energy collector with elastic enlarger by clamp nut.
Further, described piezoelectric bimorph cantilever beam be by physical dimension is identical with material properties but two panels piezoelectric ceramics that polarised direction is contrary by high strength bond glue after hot setting, upper and lower two surfaces of metal substrate being bonded in piezoelectric bimorph cantilever beam are constituted；Described two panels piezoelectric ceramics is being electrically coupled in series, and the composition loop that is connected with external load resistors.
Further, described spiral microadjuster is made up of permanent magnet, adjusting nut and adjusting screw rod, and permanent magnet seccotine is bonded in the free end of adjusting screw rod.
Further, the U-shaped frame of described safety glass is installed support, right side trip bolt, right side installation support and base plate by left side trip bolt, left side and is formed；Described left side is installed to support and is formed by stacking by 10 safety glass briquettings, and is fixed on base plate by left side trip bolt；Described right side is installed to support and is formed by stacking by 10 safety glass briquettings, and is fixed on base plate by right side trip bolt；The center of described base plate has installing hole, is linked together U-shaped for safety glass frame and spring by clamp nut.
Further, the left side that described piezoelectric bimorph cantilever beam is fixed on the U-shaped frame of safety glass by left side trip bolt is installed in support；The right side that described spiral microadjuster is fixed on the U-shaped frame of safety glass by right side trip bolt is installed in support.
In the utility model embodiment, in order to improve the output performance of non-linear broadband piezoelectric vibration energy collector, devising a spiral microadjuster, turn spiral microadjuster can change the horizontal range between permanent magnet 1 and permanent magnet 2d, and then change the non-linear magnetic field repulsive force that bistable state piezoelectric vibration energy collector cantilever beam end is subject to, make system show linearly or nonlinearly oscillating characteristic.
In the utility model embodiment, the elastic spring rate of enlarger and the quality of the U-shaped frame of safety glass all can change, mass ratio and the ratio of rigidity of non-linear piezoelectric vibration energy collector can be changed by the quality changing spring rate and the U-shaped frame of safety glass, elastic enlarger is made to amplify the weak vibration in environment, enable non-linear piezoelectric vibration energy collector easily to enter the amplitude periodic vibration of High-Energy Orbit, thus improve energy acquisition and the conversion efficiency of non-linear piezoelectric vibration energy collector.
In the utility model embodiment, mass ratio and the ratio of rigidity of non-linear piezoelectric vibration energy collector can be changed by the quality changing spring rate and U-shaped quality frame, the resonant operational frequency band of non-linear broadband piezoelectric vibration energy collector can be widened.
Brief description
Fig. 1 is non-linear broadband piezoelectric vibration energy collector structural representation of the present utility model.
Fig. 2 is bistable state piezoelectric vibration energy collector structural representation.
Fig. 3 is elastic enlarger structural representation.
Fig. 4 is the comparative result figure of non-linear broadband piezoelectric vibration energy collector output performance and bistable state piezoelectric vibration energy collector output performance.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, non-linear broadband piezoelectric vibration energy collector of the present utility model is made up of by piezoelectric bimorph cantilever beam the 1st, the U-shaped frame of spiral microadjuster the 2nd, safety glass the 3rd, spring the 4th, base 5 and the clamp nut 6 of non-linear magnetic field repulsive force an end, piezoelectric bimorph cantilever beam the 1st, spiral microadjuster 2 and the U-shaped frame of safety glass 3 constitute bistable state piezoelectric vibration energy collector, as shown in Figure 2；The U-shaped frame of safety glass the 3rd, spring 4 and base 5 constitute elastic enlarger, as shown in Figure 3；Bistable state piezoelectric vibration energy collector connects into non-linear broadband piezoelectric vibration energy collector with elastic enlarger by clamp nut 6；
Described piezoelectric bimorph cantilever beam 1 be by physical dimension is identical with material properties but two panels piezoelectric ceramics that polarised direction is contrary the 101st, 102 by high strength bond glue after hot setting, upper and lower two surfaces of metal substrate 103 being bonded in piezoelectric bimorph cantilever beam are constituted；The 101st, described two panels piezoelectric ceramics 102 is being electrically coupled in series, and the composition loop that is connected with external load resistors 104, it is achieved the function powering external loading；The end lumped mass block of described piezoelectric bimorph cantilever beam 1 is made up of permanent magnet 105；
Described spiral microadjuster 2 is made up of permanent magnet the 201st, adjusting nut 202 and adjusting screw rod 203, and permanent magnet 201 seccotine is bonded in the free end of adjusting screw rod 203, and with permanent magnet 105 horizontal interval distance isd, permanent magnet 105 is identical to pole magnetic with permanent magnet 201, is N pole；Turn adjusting nut 202 can make adjusting screw rod 203 move forward and backward in the horizontal direction, thus changes the horizontal interval distance of permanent magnet 105 and permanent magnet 201d ,And then change the non-linear repulsion magnetic field force that piezoelectric bimorph cantilever beam 1 end is subject to；
The U-shaped frame of described safety glass 3 is installed support the 302nd, right side trip bolt the 303rd, right side installation support 304 by left side trip bolt the 301st, left side and base plate 305 forms；Described left side is installed support 302 and is formed by stacking by 10 safety glass briquettings, and is fixed on base plate 305 by left side trip bolt 301；Described right side is installed support 304 and is formed by stacking by 10 safety glass briquettings, and is fixed on base plate 305 by right side trip bolt 303；The center of described base plate 305 has installing hole, is linked together U-shaped for safety glass frame 3 and spring 4 by clamp nut 6；
Described piezoelectric bimorph cantilever beam 1 is fixed 301 installations on the left of the U-shaped frame of safety glass 3 by screw and is supported on 302；Described spiral microadjuster 2 is fixed on the installation on the right side of the U-shaped frame of safety glass 3 by screw 303 and supports on 304.
Embodiment:
Fig. 4 is under same base excitation acceleration effect, non-linear broadband piezoelectric vibration energy collector and bistable state piezoelectric vibration energy collector output performance frequency sweep result, it is found that the maximum vibration displacement of non-linear broadband piezoelectric vibration energy collector reaches 18mm, working band reaches 5Hz；And the maximum vibration displacement of bistable state piezoelectric vibration energy collector is only 6mm, working band is 1Hz；The former maximum vibration displacement and working band wide be 3 times and 5 times of the latter respectively.
The comparative result of above-described embodiment may certify that the utility model patent non-linear broadband piezoelectric vibration energy collector be to problems such as improving the output performance with your vibration energy collector for the bistable state, working band be feasible effectively.In addition, change the spring rate of elastic enlarger and the quality of the U-shaped frame of safety glass, the output performance of the utility model patent non-linear broadband piezoelectric vibration energy collector can also improve further.
Claims (5)
1. a non-linear broadband piezoelectric vibration energy collector, it is made up of by the piezoelectric bimorph cantilever beam (1) of non-linear magnetic field repulsive force, spiral microadjuster (2), the U-shaped frame of safety glass (3), spring (4), base (5) and clamp nut (6) end, it is characterised in that: described piezoelectric bimorph cantilever beam (1), spiral microadjuster (2) and the U-shaped frame of safety glass (3) constitute bistable state piezoelectric vibration energy collector；The U-shaped frame of described safety glass (3), spring (4) and base (5) constitute elastic enlarger, and described bistable state piezoelectric vibration energy collector connects into non-linear broadband piezoelectric vibration energy collector with elastic enlarger by clamp nut (6).
2. non-linear broadband piezoelectric vibration energy collector as claimed in claim 1, it is characterized in that: described piezoelectric bimorph cantilever beam (1) be by physical dimension is identical with material properties but two panels piezoelectric ceramics (the 101st, 102) that polarised direction is contrary by high strength bond glue after hot setting, upper and lower two surfaces of metal substrate (103) being bonded in piezoelectric bimorph cantilever beam are constituted；Described two panels piezoelectric ceramics (the 101st, 102) is being electrically coupled in series, and the composition loop that is connected with external load resistors (104).
3. non-linear broadband piezoelectric vibration energy collector as claimed in claim 1, it is characterized in that: described spiral microadjuster (2) is made up of permanent magnet (201), adjusting nut (202) and adjusting screw rod (203), and permanent magnet (201) is bonded in the free end of adjusting screw rod (203) with seccotine.
4. non-linear broadband piezoelectric vibration energy collector as claimed in claim 1, it is characterised in that: the U-shaped frame of described safety glass (3) is installed by left side trip bolt (301), left side and is supported (302), right side trip bolt (303), support (304) is installed on right side and base plate (305) forms；Described left side is installed support (302) and is formed by stacking by 10 safety glass briquettings, and is fixed on base plate (305) by left side trip bolt (301)；Described right side is installed support (304) and is formed by stacking by 10 safety glass briquettings, and is fixed on base plate (305) by right side trip bolt (303)；The center of described base plate (305) has installing hole, is linked together U-shaped for safety glass frame (3) and spring (4) by clamp nut (6).
5. non-linear broadband piezoelectric vibration energy collector as claimed in claim 4, it is characterised in that: the left side that described piezoelectric bimorph cantilever beam (1) is fixed on the U-shaped frame of safety glass (3) by left side trip bolt (301) is installed in support (302)；The right side that described spiral microadjuster (2) is fixed on the U-shaped frame of safety glass (3) by right side trip bolt (303) is installed in support (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620204934.1U CN205622542U (en) | 2016-03-17 | 2016-03-17 | Nonlinearity wide band piezoelectricity vibration energy harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620204934.1U CN205622542U (en) | 2016-03-17 | 2016-03-17 | Nonlinearity wide band piezoelectricity vibration energy harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205622542U true CN205622542U (en) | 2016-10-05 |
Family
ID=57032053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620204934.1U Expired - Fee Related CN205622542U (en) | 2016-03-17 | 2016-03-17 | Nonlinearity wide band piezoelectricity vibration energy harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205622542U (en) |
Cited By (8)
| 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 |
| CN107493038A (en) * | 2017-09-25 | 2017-12-19 | 吉林大学 | A kind of rotary multi-direction variable bistable state vibrational energy harvester of potential barrier |
| CN108736763A (en) * | 2018-06-14 | 2018-11-02 | 电子科技大学 | A kind of two-way series broadband piezoelectric harvester of parallel circuit |
| CN109104123A (en) * | 2018-10-21 | 2018-12-28 | 吉林大学 | A kind of wide frequency domain self-tuning bistable state vibration energy collector and acquisition method |
| CN109617451A (en) * | 2018-12-27 | 2019-04-12 | 沈阳航空航天大学 | A kind of two-freedom multistable MSMA vibration energy collector |
| CN110429862A (en) * | 2019-08-09 | 2019-11-08 | 哈尔滨工业大学 | A kind of adjustable broadband spoke type piezoelectric energy collecting device |
| CN113141127A (en) * | 2021-04-28 | 2021-07-20 | 河北工业大学 | Intelligent piezoelectric vibration energy collector |
| CN113358071A (en) * | 2021-06-08 | 2021-09-07 | 西南交通大学 | Self-powered bridge structure displacement monitoring device and method |
-
2016
- 2016-03-17 CN CN201620204934.1U patent/CN205622542U/en not_active Expired - Fee Related
Cited By (9)
| 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 |
| CN107493038A (en) * | 2017-09-25 | 2017-12-19 | 吉林大学 | A kind of rotary multi-direction variable bistable state vibrational energy harvester of potential barrier |
| CN107493038B (en) * | 2017-09-25 | 2023-05-05 | 吉林大学 | Rotary multi-direction potential barrier variable bistable vibration energy acquisition device |
| CN108736763A (en) * | 2018-06-14 | 2018-11-02 | 电子科技大学 | A kind of two-way series broadband piezoelectric harvester of parallel circuit |
| CN109104123A (en) * | 2018-10-21 | 2018-12-28 | 吉林大学 | A kind of wide frequency domain self-tuning bistable state vibration energy collector and acquisition method |
| CN109617451A (en) * | 2018-12-27 | 2019-04-12 | 沈阳航空航天大学 | A kind of two-freedom multistable MSMA vibration energy collector |
| CN110429862A (en) * | 2019-08-09 | 2019-11-08 | 哈尔滨工业大学 | A kind of adjustable broadband spoke type piezoelectric energy collecting device |
| CN113141127A (en) * | 2021-04-28 | 2021-07-20 | 河北工业大学 | Intelligent piezoelectric vibration energy collector |
| CN113358071A (en) * | 2021-06-08 | 2021-09-07 | 西南交通大学 | Self-powered bridge structure displacement monitoring device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205622542U (en) | Nonlinearity wide band piezoelectricity vibration energy harvester | |
| CN203219211U (en) | Efficient wideband vibrating energy collector with elastic amplifying mechanism | |
| CN105610347A (en) | Non-linear wideband piezoelectric vibration energy collector | |
| CN103036478A (en) | Efficient wideband vibrating energy collector with elastic amplifying mechanism | |
| CN102064745B (en) | Bistable piezoelectric cantilever beam vibrator device | |
| CN103633879B (en) | Based on the vibration energy collector vibration pick-up structure of flexible girder | |
| CN110445417B (en) | Low-frequency broadband vibration energy harvesting device | |
| CN110912457B (en) | Composite three-stable-state piezoelectric vibration energy collector | |
| CN112713807B (en) | Bistable vortex-induced vibration energy capture device based on internal resonance | |
| CN101764532A (en) | Piezoelectric giant magnetostrictive combined wideband vibration energy collector | |
| CN108400724B (en) | Piezoelectric vibration energy acquisition device | |
| CN106374777A (en) | S-shaped piezoelectric cantilever beam vibration energy collector | |
| CN110061607A (en) | A kind of the micro-vibration energy collecting device and power-supply management system of underground railway track traffic | |
| CN109474203B (en) | Magnetostrictive film type vibration collecting and generating device capable of converting multi-impact low frequency into high frequency | |
| CN109039156A (en) | A kind of piezoelectric harvester of twin beams Flexural-Torsional Coupling Vibration mode | |
| CN207625468U (en) | A kind of vibrational energy collector of multistage coupled structure | |
| CN108832842A (en) | It is a kind of for collect horizontal direction superlow frequency vibrating can raising frequency formula piezoelectric generating unit | |
| CN104578910A (en) | Internal-resonance broadband vibration energy harvester of L-shaped beam structure | |
| CN110581673B (en) | Shock pad of composite generator | |
| CN204361938U (en) | A kind of L-type girder construction internal resonance wideband vibration energy collector | |
| CN114865943A (en) | Wind-induced vibration piezoelectric-triboelectric coupling energy collecting device | |
| CN107994807B (en) | Low-vibration threshold monitoring secondary energy collector based on ferromagnetic cantilever beam | |
| CN113852294A (en) | Vibration-damping energy-harvesting dual-function metamaterial beam | |
| CN216851789U (en) | Magnetic coupling double-freedom-degree bistable piezoelectric vibration energy capturing device | |
| CN109728746B (en) | Bistable nonlinear energy collecting device using lever |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20170317 |