CN206490602U - A kind of S types device for collecting piezoelectric vibration energy - Google Patents
A kind of S types device for collecting piezoelectric vibration energy Download PDFInfo
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- CN206490602U CN206490602U CN201720146155.5U CN201720146155U CN206490602U CN 206490602 U CN206490602 U CN 206490602U CN 201720146155 U CN201720146155 U CN 201720146155U CN 206490602 U CN206490602 U CN 206490602U
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- cantilever beam
- mass
- substrate
- vibration energy
- piezoelectric vibration
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Abstract
The utility model is related to a kind of S types device for collecting piezoelectric vibration energy, belongs to energy conversion and collection technique field.A kind of S types device for collecting piezoelectric vibration energy, including：Cantilever beam, its horizontal positioned and in tabular, the cantilever beam continuous turning, the substrate arranged including multilayer parallel is sequentially connected S-type, the head end of the laminar substrate of cantilever beam first is fixing end, it is pasted with first laminar substrate at fixing end 10mm on piezoelectric patches, the cantilever beam outermost laminar substrate and is fixed with mass.S types piezoelectric cantilever described in the utility model easier can realize the resonance of cantilever beam structure and environment, effectively collect vibrational energy, also there is higher voltage output ability.
Description
Technical field
The utility model is related to a kind of S types device for collecting piezoelectric vibration energy, belongs to energy conversion and collection technique field.
Background technology
In the condition monitoring and fault diagnosis of power plant and transformer station, emerge miscellaneous with small volume, function
The microsensor of integrated high the features such as.These microsensors are under the severe working environment of power plant and transformer station, generally
Independent current source is needed to provide power supply task for it, or self-energy collects the function of integrated supply.If without suitable electricity
Source is supplied, and microsensor is difficult to play a role.Current micro power source research, mainly based on conventional energy resource, using adding
Work technology, is produced with self energizing component.
Traditional minicell species is a lot, such as fuel cell, has the advantages that pollution-free and efficiency high, but actual
Using less, there are many technology drawbacks again, so being also in development now.It is chemical-electrical closest to practical micro- energy
Pond.Minicell is applied in some specific occasions, such as wireless sensor node is placed in the field environment, will run into battery
Can not power for a long time, fuel shortage, need feed etc. practical problem, these just embody minicell power supply plan can not
Lean on, impermanent shortcoming.Therefore the application of power plant and transformer station's detection device radio micro sensor, its powerup issue turns into nothing
The bottleneck of line sensor network application for a long time.Rationally collected using the energy and then conversion of nature and obtain grinding for many scholars
Study carefully and support.So-called collection of energy, is exactly the energy the energy in nature or the generation of concrete application environment, carries out energy
Amount conversion.What is converted is typically in the form of generation electric energy, then electric energy is stored and utilized, and this is accomplished by capacitor or other
Energy storage device.Energy in nature environment can be just converted to electric energy by micro generation conversion collection device, and it passes through the external world
Vibrational energy carries out piezoelectric energy conversion, obtains electric energy, then is stored, and applies the wireless senser in power plant and transformer station
On.This causes micro wireless sensor to be operated in various vibration environments.Existing vibration generating device includes electrostatic shake
Energy collection module and electromagnetic vibration energy acquisition module, electrostatic vibration energy harvesting module need additional power source, and
And the output impedance that voltage is high, electric current is low and too high of output；And electromagnetic vibration energy acquisition module leakage field is big, power output
It is too low.
Utility model content
In view of the above-mentioned problems, being to make to obtain higher generating capacity or energy conversion and collection effect in the confined space
Rate, the purpose of this utility model is to provide a kind of S types device for collecting piezoelectric vibration energy, and it is used as a kind of new miniature power supply
Device, with advantages such as low, simple in construction, the mechanical-electric coupling efficiency height of cost, can carry out self-powered for power station equipment radio node.
The purpose of this utility model is achieved through the following technical solutions：
A kind of S types device for collecting piezoelectric vibration energy, including：
Cantilever beam, its horizontal positioned and in tabular, the cantilever beam continuous turning includes the substrate of multilayer parallel arrangement
Be sequentially connected it is S-type, the head end of the laminar substrate of cantilever beam first be on fixing end, the first laminar substrate at fixing end 10mm
It is pasted with piezoelectric patches, the cantilever beam outermost laminar substrate and is fixed with mass.
Further, the piezoelectric patches and mass are located at the same face of the cantilever beam, and the mass is close to cantilever
The end of beam, and the piezoelectric patches and mass be not overlapping each other.
Further, the substrate that the multilayer is sequentially connected is integrally formed, and chamfering, and every layer are made in the edge per laminar substrate
Gap between substrate is identical.
Further, circular hole is drilled with the fixing end of the laminar substrate of cantilever beam first, is easy to the fixation of the cantilever beam.
Further,
The length of the cantilever beam is 70mm；
The length per laminar substrate is 70mm, and width is 10mm, and thickness is 1.5mm, and the gap between every laminar substrate
For 2mm；
The length of the piezoelectric patches is 40mm, and width is 10mm, and thickness is 0.7mm；
The length of the mass is 40mm, and width is 10mm, and thickness is 4mm.
Further, the substrate is that insulating cement is provided with the outside of metal substrate, and the metal substrate.
Further, the piezoelectric patches is piezoelectric monocrystal, piezoelectric ceramics, lead zirconate titanate, barium titanate or gathers inclined tetrafluoro second
Alkene.
Further, the mass is tungsten, copper, aluminium, stainless steel or polytetrafluoroethylene (PTFE).
Further, the mass includes movable mass and fixed mass block, wherein, the fixed mass block is fixed
On cantilever beam outermost laminar substrate, movable mass is fixed in fixed mass block；Wherein, movable mass is that outer surface is provided with
It is described provided with the tapped through hole matched with the movable mass thread surface inside the column of screw thread, fixed mass block
Movable mass is fixed by the tapped through hole, and by turning movable mass, adjusts its center of gravity relative on substrate
Position.By way of fixed mass block and movable mass are combined, can in larger frequency range, accurate regulation should
The intrinsic frequency of device, overcome traditional device can not accurate adjustment resonant frequency the problem of, can be in different vibration environments
Under maximization energy harvesting capabilities.
The beneficial effects of the utility model are：
Actual vibration environment is low-frequency vibration environment mostly, and the intrinsic frequency of energy gathering apparatus should be with vibration frequency
Rate matches, and when two frequencies reach identical, can produce covibration, energy conversion efficiency highest.S described in the utility model
Type piezoelectric cantilever, by the increase of cantilever beam width, its intrinsic frequency can be reduced effectively so that model can compared with
In low vibration environment (general low-frequency vibration environmental frequencies are within 50Hz), it is easier to realize being total to for cantilever beam structure and environment
Shake, effectively collect vibrational energy, also there is higher voltage output ability.
The output voltage values of S types device for collecting piezoelectric vibration energy described in the utility model can reach 15V or so, compare
In other Conventional piezoelectric energy gathering apparatus, its magnitude of voltage is very high, generating capacity is very strong.
Brief description of the drawings
Fig. 1 is the top view of S types device for collecting piezoelectric vibration energy described in the utility model；
Fig. 2 is the front view of S types device for collecting piezoelectric vibration energy described in the utility model；
Fig. 3 is the right view of S types device for collecting piezoelectric vibration energy described in the utility model；
Fig. 4 is the unit output voltage of S types device for collecting piezoelectric vibration energy described in the utility model at different frequencies
Curve map；
Wherein, 1- substrates, 2- masses, 3- piezoelectric patches, 4- fixing ends.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
A kind of S types device for collecting piezoelectric vibration energy, as shown in figure 1, including：
Cantilever beam, its horizontal positioned and in tabular, the cantilever beam continuous turning includes the substrate of multilayer parallel arrangement
1 is sequentially connected S-type, and the substrate 1 that the multilayer is sequentially connected is integrally formed, and chamfering, and every layer are made in the edge per laminar substrate 1
Gap between substrate 1 is identical.The head end of first laminar substrate of cantilever beam 1 is drilled with circular hole for fixing end 4, in order to described outstanding
The fixation of arm beam.The upper surface of first laminar substrate 1 is pasted with piezoelectric patches 3, the cantilever beam outermost layer base at fixing end 410mm
The upper surface of plate 1 is fixed with mass 2.The piezoelectric patches 3 and mass 2 are located at the same face of the cantilever beam, the mass 2
Close to the end of cantilever beam, and the piezoelectric patches 3 and mass 2 be not overlapping each other.
The length of the cantilever beam is 70mm, and overall width is 70mm.The length per laminar substrate 1 is 70mm, and width is
10mm, thickness is 1.5mm, and the gap between every laminar substrate 1 is 2mm；The length of the piezoelectric patches 3 is 40mm, and width is
10mm, thickness is 0.7mm；The length of the mass 2 is 40mm, and width is 10mm, and thickness is 4mm.
The substrate 1 is metal substrate 1, and the outside of the metal substrate 1 is provided with insulating cement.The piezoelectric patches 3 is piezoelectricity
Monocrystalline, piezoelectric ceramics, lead zirconate titanate, barium titanate gather inclined tetrafluoroethene.The mass 2 be tungsten, copper, aluminium, stainless steel or
Polytetrafluoroethylene (PTFE).
The mass 2 includes movable mass and fixed mass block, wherein, the fixed mass block is fixed on cantilever beam
On outermost laminar substrate 1, movable mass is fixed in fixed mass block；Wherein, to be that outer surface is set threaded for movable mass
Column, provided with the tapped through hole matched with the movable mass thread surface inside fixed mass block, it is described can kinoplaszm
Gauge block is fixed by the tapped through hole, and by turning movable mass, adjusts the relative position of its center of gravity on substrate 1.
Responded, can be measured using intrinsic frequency as core, certain using the output of vibration assaying meter input measurement and oscillograph
The unit output voltage capability of S types device for collecting piezoelectric vibration energy in frequency range, this can objective evaluation S type piezoelectric vibration energy
Measure the unit generating capacity between the frequency range and different frequency of collection device.As shown in figure 4, referring to S type piezoelectric vibration energies
Response curve of the collection device under different vibration environment frequencies.Experiment measures the intrinsic of S type device for collecting piezoelectric vibration energy
Frequency is 46Hz, then the unit output voltage of each frequency can be measured between 20~80Hz of frequency range.Can from figure
To find out, larger unit voltage output can be reached near intrinsic frequency, maximum can reach 394.87mV/mm.In frequency
Rate is under 20~40Hz and 50~60Hz vibration environments, vibration environment frequency is no and S types device for collecting piezoelectric vibration energy is solid
There is frequency matching, reach covibration, all vibrations are smaller, and unit output voltage capability is smaller.But intrinsic frequency effectively drops
It is low, it is more suitable for low-frequency vibration environment.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (9)
1. a kind of S types device for collecting piezoelectric vibration energy, it is characterised in that including：
The substrate of cantilever beam, its horizontal positioned and in tabular, the cantilever beam continuous turning, including multilayer parallel arrangement is successively
Connection is S-type, and the head end of the laminar substrate of cantilever beam first is to be pasted on fixing end, the first laminar substrate at fixing end 10mm
Have and be fixed with mass on piezoelectric patches, the cantilever beam outermost laminar substrate.
2. S types device for collecting piezoelectric vibration energy according to claim 1, it is characterised in that the piezoelectric patches and quality
Block is located at the same face of the cantilever beam, and the mass is close to the end of cantilever beam, and the piezoelectric patches and mass are mutual
Between it is not overlapping.
3. S types device for collecting piezoelectric vibration energy according to claim 1, it is characterised in that do at the edge per laminar substrate
Into chamfering, and the gap between every laminar substrate is identical.
4. S types device for collecting piezoelectric vibration energy according to claim 1, it is characterised in that the cantilever beam first layer
Circular hole is drilled with the fixing end of substrate, is easy to the fixation of the cantilever beam.
5. S types device for collecting piezoelectric vibration energy according to claim 1, it is characterised in that
The length of the cantilever beam is 70mm；
The length per laminar substrate is 70mm, and width is 10mm, and thickness is 1.5mm, and the gap between every laminar substrate is
2mm；
The length of the piezoelectric patches is 40mm, and width is 10mm, and thickness is 0.7mm；
The length of the mass is 40mm, and width is 10mm, and thickness is 4mm.
6. S types device for collecting piezoelectric vibration energy according to claim 1, it is characterised in that the substrate is Metal Substrate
Insulating cement is provided with the outside of plate, and the metal substrate.
7. S types device for collecting piezoelectric vibration energy according to claim 1, it is characterised in that the piezoelectric patches is piezoelectricity
Monocrystalline, piezoelectric ceramics, lead zirconate titanate, barium titanate gather inclined tetrafluoroethene.
8. S types device for collecting piezoelectric vibration energy according to claim 1, it is characterised in that the mass be tungsten,
Copper, aluminium, stainless steel or polytetrafluoroethylene (PTFE).
9. S types device for collecting piezoelectric vibration energy according to claim 1, it is characterised in that the mass includes can
Kinoplaszm gauge block and fixed mass block, wherein, the fixed mass block is fixed on cantilever beam outermost laminar substrate, and movable mass is solid
It is scheduled in fixed mass block；Wherein, movable mass is that outer surface sets threaded column, be provided with inside fixed mass block with
The tapped through hole that the movable mass thread surface matches, the movable mass is fixed by the tapped through hole, and
By turning movable mass, relative position of its center of gravity on substrate is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720146155.5U CN206490602U (en) | 2017-02-18 | 2017-02-18 | A kind of S types device for collecting piezoelectric vibration energy |
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|---|---|---|---|
| CN201720146155.5U CN206490602U (en) | 2017-02-18 | 2017-02-18 | A kind of S types device for collecting piezoelectric vibration energy |
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| CN206490602U true CN206490602U (en) | 2017-09-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787943A (en) * | 2017-02-18 | 2017-05-31 | 中国大唐集团科技工程有限公司 | A kind of S types device for collecting piezoelectric vibration energy |
| CN108418469A (en) * | 2018-03-12 | 2018-08-17 | 佛山市顺德区中山大学研究院 | A kind of piezoelectric type vibration energy collecting device |
-
2017
- 2017-02-18 CN CN201720146155.5U patent/CN206490602U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787943A (en) * | 2017-02-18 | 2017-05-31 | 中国大唐集团科技工程有限公司 | A kind of S types device for collecting piezoelectric vibration energy |
| CN106787943B (en) * | 2017-02-18 | 2018-10-23 | 中国大唐集团科技工程有限公司 | A kind of S types device for collecting piezoelectric vibration energy |
| CN108418469A (en) * | 2018-03-12 | 2018-08-17 | 佛山市顺德区中山大学研究院 | A kind of piezoelectric type vibration energy collecting device |
| CN108418469B (en) * | 2018-03-12 | 2019-07-09 | 佛山市顺德区中山大学研究院 | A kind of piezoelectric type vibration energy collecting device |
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Granted publication date: 20170912 Termination date: 20220218 |