CN102611352A - Piezoelectric type omni-directional vibrating energy recovery device - Google Patents
Piezoelectric type omni-directional vibrating energy recovery device Download PDFInfo
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- CN102611352A CN102611352A CN2012100893623A CN201210089362A CN102611352A CN 102611352 A CN102611352 A CN 102611352A CN 2012100893623 A CN2012100893623 A CN 2012100893623A CN 201210089362 A CN201210089362 A CN 201210089362A CN 102611352 A CN102611352 A CN 102611352A
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Abstract
The invention relates to a piezoelectric type omni-directional vibrating energy recovery device, belonging to the technical field of new energy and power generation. A frame is mounted on a base by bolts, wherein the frame is a polyhedron provided with piezoelectric vibrators at each side; a piezoelectric vibrator is mounted on the top of the frame; all the piezoelectric vibrators are formed by adhering of metal base plates and piezoelectric wafers and provided with circular holes at the centers; the circular holes are connected with clamping jaws at the ends of bayonet locks in a clamped manner; the piezoelectric vibrator mounted at the side of the frame is connected to the side of an inertia block by the bayonet lock and peripheral springs; the top surface of the inertia block is connected with the piezoelectric vibrator mounted on the top of the frame by the spring at the top and the bayonet lock; and the bottom surface of the inertia block is connected with the base by the spring at the bottom. The piezoelectric type omni-directional vibrating energy recovery device provided by the invention has the advantages that the piezoelectric vibrator is excited by a method of pulling the inertia block by the spring, so that the low-frequency vibrating energy in any directions is recovered; and the reliability and the energy efficiency are high.
Description
Technical field
The invention belongs to new forms of energy and technical field of power generation, be specifically related to a kind of piezoelectric generating device that is applicable to that low frequency, comprehensive vibrational energy reclaim.
Background technology
The microminiature TRT that utilizes piezoceramic material to reclaim the ambient vibration energy has become the research focus of domestic and international lasting for years.Piezoelectric type vibrational energy retracting device is is successfully develop and useedd; Not only can solve the powerup issue of portable micropower electronic product and long-range heeling-in sensing and monitoring system, also help to reduce a large amount of waste battery contaminated environment and produce the wasting of resources problem that battery caused.To the difference of ambient vibration characteristics and application purpose, the piezoelectric energy recovery device than polymorphic type has been proposed all both at home and abroad at present.But because piezoelectric ceramic is a fragile material; And the flexure type piezoelectric vibrator that it constituted has the higher characteristics of the single resonant frequency of deformation direction; Therefore existing piezoelectric energy recovery device also has bigger limitation at the aspects such as adaptive capacity, reliability and energy conversion efficiency of vibration environment, is difficult in reality, apply.
As everyone knows, for oscillatory type piezoelectric energy recovery device, only, the piezoelectric vibrator natural frequency can reach higher generating capacity and energy conversion efficiency when equating with the ambient vibration frequency.But higher because of the resonance frequency of piezoelectric vibrator self, be generally hundreds of even a few KHz, and the ambient vibration frequency is generally tens hertz even only have several hertz, it is not remarkable therefore directly to utilize piezoelectric vibrator to collect the effect of environment vibrational energy.For reducing the natural frequency of piezoelectric vibrator; The method that adopts at present is in the cantilever beam piezoelectric vibrators end or concentrated inertial mass is installed in circular piezoelectric oscillator center; Its drawback is to work as the inertial mass of being installed when big; Even piezoelectric vibrator has just produced moderate finite deformation when non operating state, in the work very easily because of being out of shape excessive the damage.On the other hand; Vibration source in the reality under the non-structure environment has multidirectional and its direction of vibration and amplitude size and also has a time variation; With all kinds of vehicles in advancing is example; Its vibration source comprises that the extensional vibration that the road injustice causes, porpoise, the traffic direction drift that velocity variations causes cause transverse vibration etc., and have vibration coupling and Overlay between above-mentioned each vibration source.Therefore, but the energy recycle device that adopts single or several different directions distortion piezoelectric vibrators to constitute all can not satisfy effective recovery of multi-direction vibrational energy.Therefore; Domestic scholars had once proposed the multi-direction vibrational energy retracting device of several kinds of structures; Its implementation is: polyhedral each the drift angle place in hollow is connected with flexure type PVDF piezoelectric vibrator; The other end of each piezoelectric vibrator all links to each other with a mass, hopes to realize thus multidirectional vibrational energy collection.But in the reality, be a space truss structure owing to what constitute between each piezoelectric vibrator and polyhedron framework and mass, thereby the global stiffness of piezoelectric vibrator and truss is all increased considerably, can't realize the collection of energy of low-frequency vibration; On the other hand, the flexure type piezoelectric vibrator only can produce dilatation and generating in its length, and can't produce deformation on the Width; Therefore, certainly will cause distortion to each other to interfere after a plurality of flexure type piezoelectric vibrators interconnect through a mass, be unfavorable for that more multi-direction vibrational energy reclaims, can not realize that more the vibrational energy of any direction reclaims.
Summary of the invention
The present invention provides a kind of piezoelectric type comprehensive vibrational energy retracting device, to solve the problem that existing piezoelectricity oscillating generating set is inappropriate for low frequency and the recovery of any direction vibrational energy.
The embodiment that the present invention adopts is: framework is installed on the base through screw, and said framework is that polyhedron and each side are equipped with piezoelectric vibrator, and the top of framework also is equipped with a piezoelectric vibrator; The said piezoelectric vibrator that is installed on frame facet and the piezoelectric vibrator that is installed on frame roof are by metal substrate and piezoelectric chip is bonding forms, and the center of piezoelectric vibrator is equipped with circular hole; The claw clamping of said circular hole and bayonet lock end; The said piezoelectric vibrator that is installed on frame facet is connected with the side of inertial mass through bayonet lock and peripheral spring; The end face of said inertial mass is connected with the piezoelectric vibrator that is installed on frame roof through top spring and bayonet lock; The underrun bottom spring of said inertial mass is connected with base.
In the present invention, base, periphery and top bayonet lock and one group of spring of framework, an inertial mass of piezoelectric vibrator being installed and connecting said piezoelectric vibrator and said inertial mass constitutes.Under nature, inertial mass is in poised state under the effect of bottom spring, and peripheral spring, top spring and piezoelectric vibrator promptly do not receive the external force effect, do not produce deformation all in the raw.When framework was vibrated by extraneous arbitrary direction, the position of inertial mass promptly changed, and the inertial force that is produced passes to piezoelectric vibrator through spring and bayonet lock, thereby made piezoelectric vibrator generation flexural deformation and convert mechanical energy to electric energy.
Characteristics of the present invention and advantage are; Utilize the method excitation piezoelectric vibrator of spring traction inertial mass; Can realize that any direction and low-frequency vibration energy reclaim; And the characteristics with high reliability, energy-efficient: the vibration of any direction all can cause the relative motion of inertial mass in
environment; The inertial force of mass passes to piezoelectric vibrator through spring, thereby makes piezoelectric vibrator generation flexural deformation and convert mechanical energy to electric energy; The action of gravity of
inertial mass self is on spring; The size of its quality does not have direct influence to the vibration characteristics of piezoelectric vibrator; Can adopt big inertial mass and low rigid spring to reduce the natural frequency of TRT, thereby realize that low-frequency vibration energy reclaims.
Description of drawings
Fig. 1 is the structural profile sketch map under the energy recycle device nature in preferred embodiment of the present invention;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is the structural profile sketch map of bayonet lock in preferred embodiment of the present invention;
Fig. 4 is the left view of Fig. 3.
Embodiment
Embodiment of the invention middle frame is example with the hexahedron, is that ordinary skill does not need creative work still can realize the present invention when removing other face bodies of 6 bodies in 3 ~ 20 bodies.
In the present invention, base 9, periphery are equipped with bayonet lock 3 and one group of spring that piezoelectric vibrator 2 and top be equipped with framework, an inertial mass 6 of piezoelectric vibrator 8 and connect said piezoelectric vibrator and said inertial mass and constitute.Under nature, inertial mass 6 is in poised state under the effect of bottom spring 5, and peripheral spring 4, top spring 7 and piezoelectric vibrator 1 and piezoelectric vibrator 28 promptly do not receive the external force effect, do not produce deformation all in the raw.When framework 1 was vibrated by extraneous arbitrary direction, the position of inertial mass 6 promptly changed, and the inertial force that is produced passes to piezoelectric vibrator through spring and bayonet lock, thereby made piezoelectric vibrator generation flexural deformation and convert mechanical energy to electric energy.
Claims (3)
1. comprehensive vibrational energy retracting device of piezoelectric type, it is characterized in that: framework is installed on the base through screw, and said framework is that polyhedron and each side are equipped with piezoelectric vibrator one, and the top of framework also is equipped with a piezoelectric vibrator two; The said piezoelectric vibrator that is installed on frame facet one forms with piezoelectric chip is bonding by metal substrate with the piezoelectric vibrator two that is installed on frame roof, and the center of piezoelectric vibrator one and piezoelectric vibrator two is equipped with circular hole; The claw clamping of said circular hole and bayonet lock end; The said piezoelectric vibrator one that is installed on frame facet is connected with the side of inertial mass through bayonet lock and peripheral spring; The end face of said inertial mass is connected with the piezoelectric vibrator that is installed on frame roof two through top spring and bayonet lock; The underrun bottom spring of said inertial mass is connected with base.
2. the comprehensive vibrational energy retracting device of piezoelectric type according to claim 1 is characterized in that, framework is a 3-20 face body, and piezoelectric vibrator is installed in each side.
3. the comprehensive vibrational energy retracting device of piezoelectric type according to claim 2 is characterized in that, framework is 6 bodies, and piezoelectric vibrator is installed in each side.
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| CN2012100893623A CN102611352A (en) | 2012-03-29 | 2012-03-29 | Piezoelectric type omni-directional vibrating energy recovery device |
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| CN2012100893623A CN102611352A (en) | 2012-03-29 | 2012-03-29 | Piezoelectric type omni-directional vibrating energy recovery device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426425A (en) * | 2013-09-06 | 2015-03-18 | 北京纳米能源与系统研究所 | Inertial power generation device with power generating unit and acceleration direction detection device |
| CN104879269A (en) * | 2015-04-27 | 2015-09-02 | 合肥工业大学 | Floating piezoelectric ocean wave power generation assembly |
| CN105203204A (en) * | 2015-11-10 | 2015-12-30 | 重庆地质仪器厂 | In-plane omnidirectional vibration monitoring device |
| CN107196555A (en) * | 2017-07-07 | 2017-09-22 | 安徽理工大学 | A kind of multi-direction vibration energy collector of piezoelectric type |
| CN107769614A (en) * | 2017-11-02 | 2018-03-06 | 安徽理工大学 | A kind of multi-direction vibrational energy harvester of piezoelectric type |
| CN108310649A (en) * | 2018-01-24 | 2018-07-24 | 张海军 | A kind of wireless pacemaker of self energizing with Charge Management technology |
| WO2018228087A1 (en) * | 2017-06-13 | 2018-12-20 | 中国石油大学(华东) | Detection device based on piezoelectric property of geological mineral |
| CN109367783A (en) * | 2018-09-30 | 2019-02-22 | 安徽煜丰农业机械制造有限公司 | A kind of box plant protection drone of emergency throwing |
| CN109383831A (en) * | 2018-09-30 | 2019-02-26 | 安徽煜丰农业机械制造有限公司 | A kind of plant protection drone for automatic positioning of falling |
| CN110091930A (en) * | 2019-04-26 | 2019-08-06 | 江苏理工学院 | A kind of lorry disturbing flow device with energy recovery function |
| CN110091778A (en) * | 2019-04-26 | 2019-08-06 | 江苏理工学院 | A kind of ventilation chair for automobile set with energy recovery function |
| CN110427678A (en) * | 2019-07-25 | 2019-11-08 | 山东科技大学 | A kind of more oscillator space type pick-ups prisoner can experimental provision and its application method |
| CN110518832A (en) * | 2019-08-27 | 2019-11-29 | 杭州电子科技大学 | A kind of multi-directional energy gathering apparatus and its preparation facilities and method |
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| CN201488805U (en) * | 2009-09-02 | 2010-05-26 | 成都科鑫电气有限公司 | Piezoelectric type omnibearing vibration sensor |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426425A (en) * | 2013-09-06 | 2015-03-18 | 北京纳米能源与系统研究所 | Inertial power generation device with power generating unit and acceleration direction detection device |
| CN104879269A (en) * | 2015-04-27 | 2015-09-02 | 合肥工业大学 | Floating piezoelectric ocean wave power generation assembly |
| CN105203204A (en) * | 2015-11-10 | 2015-12-30 | 重庆地质仪器厂 | In-plane omnidirectional vibration monitoring device |
| CN105203204B (en) * | 2015-11-10 | 2018-07-03 | 中地装（重庆）地质仪器有限公司 | Omnidirection vibration monitoring device in a kind of plane |
| US11467296B2 (en) | 2017-06-13 | 2022-10-11 | China University Of Petroleum (East China) | Detection device based on the piezoelectric property of geological mineral |
| WO2018228087A1 (en) * | 2017-06-13 | 2018-12-20 | 中国石油大学(华东) | Detection device based on piezoelectric property of geological mineral |
| CN107196555A (en) * | 2017-07-07 | 2017-09-22 | 安徽理工大学 | A kind of multi-direction vibration energy collector of piezoelectric type |
| CN107769614A (en) * | 2017-11-02 | 2018-03-06 | 安徽理工大学 | A kind of multi-direction vibrational energy harvester of piezoelectric type |
| CN108310649A (en) * | 2018-01-24 | 2018-07-24 | 张海军 | A kind of wireless pacemaker of self energizing with Charge Management technology |
| CN109367783A (en) * | 2018-09-30 | 2019-02-22 | 安徽煜丰农业机械制造有限公司 | A kind of box plant protection drone of emergency throwing |
| CN109367783B (en) * | 2018-09-30 | 2022-04-12 | 安徽科创生产力促进中心有限公司临泉分公司 | Emergent box plant protection unmanned aerial vehicle of throwing |
| CN109383831A (en) * | 2018-09-30 | 2019-02-26 | 安徽煜丰农业机械制造有限公司 | A kind of plant protection drone for automatic positioning of falling |
| CN110091930A (en) * | 2019-04-26 | 2019-08-06 | 江苏理工学院 | A kind of lorry disturbing flow device with energy recovery function |
| CN110091778A (en) * | 2019-04-26 | 2019-08-06 | 江苏理工学院 | A kind of ventilation chair for automobile set with energy recovery function |
| CN110091778B (en) * | 2019-04-26 | 2020-08-25 | 江苏理工学院 | Automobile ventilation seat cover with energy recovery function |
| CN110427678A (en) * | 2019-07-25 | 2019-11-08 | 山东科技大学 | A kind of more oscillator space type pick-ups prisoner can experimental provision and its application method |
| CN110518832A (en) * | 2019-08-27 | 2019-11-29 | 杭州电子科技大学 | A kind of multi-directional energy gathering apparatus and its preparation facilities and method |
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Application publication date: 20120725 |