CN202524323U - Contactless actuated multidimensional vibration energy collector - Google Patents
Contactless actuated multidimensional vibration energy collector Download PDFInfo
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- CN202524323U CN202524323U CN2012201262012U CN201220126201U CN202524323U CN 202524323 U CN202524323 U CN 202524323U CN 2012201262012 U CN2012201262012 U CN 2012201262012U CN 201220126201 U CN201220126201 U CN 201220126201U CN 202524323 U CN202524323 U CN 202524323U
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- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 230000005284 excitation Effects 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241000245665 Taraxacum Species 0.000 description 1
- 235000005187 Taraxacum officinale ssp. officinale Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model relates to a contactless actuated multidimensional vibration energy collector and belongs to the field of new energy and power generation technology. The upper top surface and the lower bottom surface of a shell are respectively provided with a connection seat for fixing a piezoelectric vibrator. The piezoelectric vibrators are fixed onto the connection seats by screws. Each piezoelectric vibrator consists of a metal substrate and a piezoelectric wafer mutually bonded together. The end portion of the piezoelectric vibrator is provided with a magnet. The upper top surface of the shell is provided with a tension spring, while the lower bottom surface of the shell is provided with a compressed spring. The other end of the tension spring and the other end of the compressed spring are connected with a mass respectively. Magnets are inlaid at the periphery of each mass. The magnets on the end portions of the piezoelectric vibrators and the magnets inlaid on the masses are arranged in such a way that the like magnetic poles thereof are opposite to each other. The contactless actuated multidimensional vibration energy collector can collect low-frequency and large-amplitude vibration energy in any direction.
Description
Technical field
The utility model belongs to new forms of energy and technical field of power generation, is specifically related to the multi-dimensional vibration energy collecting device of noncontact excitation, is used for low frequency, large amplitude, the collection of multidirectional vibrational energy.
Background technology
For the self-powered demand that satisfies micropower electronic product and microminiature remote sensing and heeling-in monitoring system, avoid a large amount of waste battery contaminated environment, based on electromagnetism, static, thermoelectricity, electric capacity, and the research of the microminiature energy collecting device of principle such as piezoelectricity become forward position both domestic and external focus.All kinds of energy collecting devices all have advantage and the suitable application area of himself; That the advantage of piezoelectric type vibration energy collector is is simple in structure, be easy to make and implementation structure on microminiaturization and integrated etc.; So the scope of application is wider, progressively is used for fields such as transducer, health monitoring and wireless transmitting system at present.
Utilizing piezoelectric to reclaim aspect the vibrational energy generating; More patent application is all arranged both at home and abroad; Mostly early stage energy collecting device structure is the cantilever beam and the circular piezoelectric oscillator of monomer; Also occurred at present constituting energy collecting device by a plurality of piezoelectric vibrators, purpose is to increase the effective band width of piezoelectric energy collector or realize a plurality of direction of vibration vibrational energies collections.As, Chinese utility model patent 201010601354.3 proposes the dandelion formula energy collecting device that a kind of a plurality of cantilever beam piezoelectric vibrators constitutes, and can realize that the vibrational energy of an extensional vibration and a horizontal direction reclaims; Chinese patent 200810106046.6 proposes the broadband piezoelectric energy collector that a kind of different length cantilever beam piezoelectric vibrators constitutes, or the like.As everyone knows, only when the piezoelectric vibrator natural frequency equates with the ambient vibration frequency piezoelectric energy collector bigger generating capacity and higher energy efficiency are just arranged.But higher usually because of the resonance frequency of piezoelectric vibrator, reach hundreds of or a few KHz, and the ambient vibration frequency is merely tens hertz usually, therefore directly utilize the effect of piezoelectric vibrator collection environment vibrational energy not remarkable.For reducing the natural frequency of piezoelectric vibrator, the method that adopts at present is an installation quality piece on piezoelectric vibrator, and when the mass of being installed was big, non operating state lower piezoelectric oscillator already produced moderate finite deformation, also can be because of being out of shape excessive the damage in the course of work.It is thus clear that, existing piezoelectric vibration energy collector self frequency band is narrow, natural frequency is high and the vibrational energy direction of recession single still be the technical bottleneck of restriction practical application.
Summary of the invention
The utility model provides the multi-dimensional vibration energy collecting device of a kind of noncontact excitation, and existing TRT natural frequency is high to solve, the large-amplitude vibration damage, can't collect problem such as multi-direction vibrational energy.
The embodiment that the utility model adopts is: end face and bottom surface are respectively equipped with the Connection Block that is used for fixing piezoelectric vibrator on the housing, and this piezoelectric vibrator is screwed on described Connection Block; Said piezoelectric vibrator is by metal substrate and piezoelectric chip is bonding forms, and its end is equipped with magnet; The last end face of housing is equipped with extension spring, bottom surface is equipped with stage clip, and the other end of described extension spring and stage clip links with mass respectively, inlays magnet around the said mass; The magnet of said piezoelectric vibrator end is installed with the like pole that is embedded in the magnet on the mass relatively.
In a kind of execution mode of the utility model, the length that is fixed in the piezoelectric vibrator on the end face and bottom surface on the housing is unequal.
In a kind of execution mode of the utility model, be installed on that the piezoelectric vibrator quantity on the end face and bottom surface is respectively 1-20 on the housing.
In a kind of execution mode of the utility model, be installed on that the piezoelectric vibrator quantity on the end face and bottom surface is respectively 4 ~ 12 on the housing.
In a kind of execution mode of the utility model, be installed on that the piezoelectric vibrator quantity on the end face and bottom surface is respectively 6 on the housing.
In the utility model, housing, two groups of ends are equipped with the cantilever beam piezoelectric vibrators of magnet, a mass that is inlaid with magnet, two springs that mass is connected with housing and constitute TRT jointly.Under nature, mass is transfixion under the effect of spring force and peripheral rows of magnets repulsion, is in relative static conditions between mass and each piezoelectric vibrator.When housing is vibrated by extraneous arbitrary direction; The mass position changes; Magnet on the piezoelectric vibrator and distance and the magnetic field force between the magnet on the mass change, thereby cause the change of piezoelectric vibrator stress and shape, and convert mechanical energy to electric energy.
The characteristics and the advantage of the utility model are:
utilize the suspension type mass to install the mode excitation cantilever arm beam piezoelectric vibrator of magnet additional, can realize the vibrational energy collection of any direction; The action of gravity of
mass self is on spring; The size of its quality does not have direct influence to the vibration characteristics of piezoelectric vibrator; Be easy to adopt big quality and low rigid spring to reduce the natural frequency of energy collecting device, can realize that low-frequency vibration energy reclaims; Piezoelectric vibrator is vertically installed
, the horizontal direction vibration; The exciting force of vibration is provided by the magnetic force change of magnet on the mass, and piezoelectric vibrator is unlikely to be damaged because of pitch amplitude is excessive, the reliability height.
Description of drawings
Fig. 1 is the structural profile sketch map under the energy collecting device inactive state in preferred embodiment of the utility model;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is the structural profile sketch map under the energy collecting device up-down vibration state in preferred embodiment of the utility model;
Fig. 4 is the structural profile sketch map under the energy collecting device horizontal direction vibrational state in preferred embodiment of the utility model.
Embodiment
Like Fig. 1, shown in Figure 2; To be respectively 6 be example to be installed on the housing piezoelectric vibrator quantity on the end face and bottom surface; The last end face of housing 1 is provided with one group of Connection Block 1, bottom surface that is used for fixing piezoelectric vibrator 1 and is provided with one group of Connection Block 2 102 that is used for fixing piezoelectric vibrator 26, and piezoelectric vibrator 1 is screwed respectively on Connection Block 1 and Connection Block 2 102 with piezoelectric vibrator 26; Piezoelectric vibrator 1 is by metal substrate 1 and piezoelectric chip one 202 bonding forming, and the end is equipped with magnet 1; Piezoelectric vibrator 26 is by metal substrate 2 601 and piezoelectric chip 2 602 bonding forming, and the end is equipped with magnet 2 11; The last end face of housing 1 is equipped with extension spring 7, bottom surface is equipped with stage clip 4, and the other end of said extension spring 7 and stage clip 4 links with mass 3 respectively, inlays one group of magnet 35 around the said mass 3; The magnet 2 11 that is installed on the magnet 1 on the piezoelectric vibrator one and is installed on the piezoelectric vibrator two is installed with the like pole that is installed in the magnet 35 on the mass 3 relatively.
In above-mentioned example, be fixed in that the length of the piezoelectric vibrator on the end face and bottom surface on the housing is unequal also can accomplish the utility model.
Under nature, mass 3 and the magnet 35 that is installed on the said mass are in a certain equilbrium position, keep relative static conditions between said mass and each piezoelectric vibrator.When housing 1 is vibrated by extraneous arbitrary direction; The position of mass 3 and magnet 35 changes; Magnet 1 and the distance between the magnet 35 on magnet 2 11 and the mass 3 and the repulsive force between each magnet that then are installed on the piezoelectric vibrator change; Thereby make the change of piezoelectric vibrator stress and shape, and convert mechanical energy to electric energy.
As shown in Figure 3; The up-down vibration of housing 1 can be destroyed the relative balance state between piezoelectric vibrator 1, piezoelectric vibrator 26 and the mass 3: housing 1 and when being installed on piezoelectric vibrator 1 on the housing 1 with piezoelectric vibrator 26 vibration downwards; Mass 3 and the magnet 35 that is installed on the mass 3 lag behind because of receiving the inertia force action response; And stage clip 4 stretchings, extension spring 7 are compressed; And then be that distance between magnet 1 and the magnet 35 reduces, repulsive force increases, the repulsive force of increase forces piezoelectric vibrator 1 to the direction flexural deformation away from mass 3; Simultaneously, the distance between magnet 2 11 and the magnet 35 increases, repulsive force reduces, and piezoelectric vibrator 6 recovers distortion down in the effect of self elastic force, promptly is out of shape to the direction near mass.
As shown in Figure 4; Housing 1 vibration in the horizontal direction can destroy the relative balance state between piezoelectric vibrator 1, piezoelectric vibrator 26 and the mass 3: housing 1 and be installed on piezoelectric vibrator 1 on the housing 1 when vibrating with piezoelectric vibrator 26 to the right; Mass 3 and the magnet 35 that is installed on the mass 3 lag behind because of receiving the inertia force action response; And stage clip 4 and extension spring 7 are stretched; Magnet 1 and the distance between the magnet 55 on magnet 2 11 and the mass 3 among Fig. 4 on the piezoelectric vibrator of left side reduces, repulsive force increases, thereby piezoelectric vibrator 1 on the left of making and piezoelectric vibrator 26 are to the direction flexural deformation away from mass 3, i.e. flexural deformation left; Simultaneously; Distance between the magnet 55 on magnet 1 on Fig. 4 right-of-center in political views's side pressure electric tachometer indicator and magnet 2 11 and the mass 3 increases, repulsive force reduces; Then Fig. 4 right-of-center in political views's side pressure electric tachometer indicator 1 and piezoelectric vibrator 26 recover down to be out of shape i.e. flexural deformation left in the effect of self elastic force.
Be installed on the housing piezoelectric vibrator quantity on the end face and bottom surface among the utility model embodiment when being respectively in 1-20 except that 6, those of ordinary skills still can not spend creative work and promptly accomplish the utility model.
Claims (5)
1. the multi-dimensional vibration energy collecting device of noncontact excitation, it is characterized in that: end face and bottom surface are respectively equipped with the Connection Block that is used for fixing piezoelectric vibrator on the housing, and this piezoelectric vibrator is screwed on described Connection Block; Said piezoelectric vibrator is by metal substrate and piezoelectric chip is bonding forms, and its end is equipped with magnet; The last end face of housing is equipped with extension spring, bottom surface is equipped with stage clip, and the other end of described extension spring and stage clip links with mass respectively, inlays magnet around the said mass; The magnet of said piezoelectric vibrator end is installed with the like pole that is embedded in the magnet on the mass relatively.
2. the multi-dimensional vibration energy collecting device of noncontact according to claim 1 excitation is characterized in that, the length that is fixed in the piezoelectric vibrator on the end face and bottom surface on the housing is unequal.
3. the multi-dimensional vibration energy collecting device of noncontact according to claim 1 excitation is characterized in that, being installed on end face on the housing and piezoelectric vibrator quantity on the bottom surface, to be respectively 1-20 individual.
4. the multi-dimensional vibration energy collecting device of noncontact according to claim 3 excitation is characterized in that, is installed on that the piezoelectric vibrator quantity on the end face and bottom surface is respectively 4 ~ 12 on the housing.
5. the multi-dimensional vibration energy collecting device of noncontact according to claim 4 excitation is characterized in that, is installed on that the piezoelectric vibrator quantity on the end face and bottom surface is respectively 6 on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201262012U CN202524323U (en) | 2012-03-29 | 2012-03-29 | Contactless actuated multidimensional vibration energy collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012201262012U CN202524323U (en) | 2012-03-29 | 2012-03-29 | Contactless actuated multidimensional vibration energy collector |
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| CN202524323U true CN202524323U (en) | 2012-11-07 |
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| CN2012201262012U Expired - Fee Related CN202524323U (en) | 2012-03-29 | 2012-03-29 | Contactless actuated multidimensional vibration energy collector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624281A (en) * | 2012-03-29 | 2012-08-01 | 浙江师范大学 | Multidimensional vibration energy collector capable of realizing non-contact excitement |
| CN104868784A (en) * | 2015-04-28 | 2015-08-26 | 南京航空航天大学 | Piezoelectric oscillator structure for vibration energy recycling |
| CN114501964A (en) * | 2022-04-02 | 2022-05-13 | 浙大城市学院 | Dynamic wall surface heat exchange device based on piezoelectric excitation |
-
2012
- 2012-03-29 CN CN2012201262012U patent/CN202524323U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624281A (en) * | 2012-03-29 | 2012-08-01 | 浙江师范大学 | Multidimensional vibration energy collector capable of realizing non-contact excitement |
| CN102624281B (en) * | 2012-03-29 | 2015-04-01 | 浙江师范大学 | Multidimensional vibration energy collector capable of realizing non-contact excitement |
| CN104868784A (en) * | 2015-04-28 | 2015-08-26 | 南京航空航天大学 | Piezoelectric oscillator structure for vibration energy recycling |
| CN114501964A (en) * | 2022-04-02 | 2022-05-13 | 浙大城市学院 | Dynamic wall surface heat exchange device based on piezoelectric excitation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20130329 |