CN208174575U - A kind of double track circular arc type piezoelectric type energy collector - Google Patents
A kind of double track circular arc type piezoelectric type energy collector Download PDFInfo
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- CN208174575U CN208174575U CN201820640098.0U CN201820640098U CN208174575U CN 208174575 U CN208174575 U CN 208174575U CN 201820640098 U CN201820640098 U CN 201820640098U CN 208174575 U CN208174575 U CN 208174575U
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Abstract
The utility model discloses a kind of double track circular arc type piezoelectric type energy collector, the energy harvester includes a cantilever beam pair, cantilever beam is formed by connecting to by two symmetrical cantilever beams, each cantilever beam is formed by connecting by a circular arc type thin slice and a square sheets, it is attached with piezoelectric layer on circular arc type thin slice, is attached with mass block in square sheets；Cantilever beam is to symmetrical as center symmetry axis using the diagonal line of square sheets；The left end of circular arc type thin slice is connected with square sheets, and the right end of circular arc type thin slice is fixing end.The vibrational energy of top surface, side surface direction not only can be absorbed in the double track circular arc type piezoelectric energy collector of the technical program, but also has output voltage high, and space utilization rate is high, the good advantage of stability, and has the characteristics that being easily integrated, micromation.
Description
Technical field
The utility model relates to a kind of double track circular arc type piezoelectric type energy collectors, belong to energy collection technology field.
Background technique
Piezoelectric energy collector is converted to the mechanical energy that can not directly utilize in ambient enviroment in the way of piezoelectric effect
The electric energy that can directly utilize.Currently used piezoelectric type energy collector is usually straight type structure, although under this structure may be used
To play the role of collection of energy, however, experimentation have shown that collectable energy frequency range is smaller, output potential is lower.Except this it
Outside, a series of piezoelectric energy collector of straight type structure defects such as that there are also stability is low, space utilization rate is few.Traditional single circular arc
Piezoelectric type energy collector is applied to mass block top surface or side, overarm vibration deformation by extraneous vibration, and piezoelectric layer generates electricity
Gesture.
Although traditional high-performance circular arc type piezoelectric energy collector can convert electric energy for load under certain radian
Output, but under certain plus load, its output potential is significantly smaller, energy and space utilization rate are lower, and structure
Asymmetry easily causes stability problem.
Summary of the invention
The purpose of this utility model is exactly to propose a kind of double track circular arc to solve the above-mentioned problems in the prior art
Type piezoelectric type energy collector.
The purpose of this utility model will be realized through the following technical scheme：A kind of double track circular arc type piezoelectric type energy receipts
Storage, including a cantilever beam pair, the cantilever beam are formed by connecting to by two symmetrical cantilever beams, each cantilever beam
It is formed by connecting by a circular arc type thin slice and a square sheets, is attached with piezoelectric layer on the circular arc type thin slice, it is described
Mass block is attached in square sheets.
Preferably, the cantilever beam is to symmetrical as center symmetry axis using the diagonal line of square sheets.
Preferably, the left end of the circular arc type thin slice is connected with square sheets, and the right end of the circular arc type thin slice is solid
Fixed end.
Preferably, the square sheets are the arc profile bed of material.
Preferably, the cantilever beam is made of phosphor bronze material.
Preferably, the internal diameter of the circular arc type thin slice is 20mm, outer diameter 30mm, width 10mm, and circular arc degree is 90 degree.
Preferably, the piezoelectric layer is PZT-5H.
Preferably, the internal diameter of the piezoelectric layer is 20mm, outer diameter 30mm, and with a thickness of 0.3mm, circular arc degree is 90 degree.
Preferably, the mass block is made of nickel material.
Preferably, the length of the mass block is respectively 10mm, 10mm, 10mm.
The advantages of technical solutions of the utility model, is mainly reflected in：
In the case where adding excitation load constant outside, the piezoelectric layer area of the double track circular arc type piezoelectric energy collector is round
Twice of camber piezoelectric type energy collector, it means that double-rail piezoelectric energy collector can export the energy of more power
Amount, thus there is higher potential.
For an equal amount of mass block, which is corresponding with two panels piezoelectric layer, and justifies
Camber piezoelectric type energy collector is monorail structure, and only a piece of piezoelectric layer is corresponding with mass block, and this structure can be mentioned effectively
Space-efficient, and then improve integrated level of the device as the integrated unit little module of piezoelectricity integrated chip.
The double track circular arc type piezoelectric energy collector is by the full symmetric cantilever beam of two panels and the piezoelectricity in face attached thereto
Layer composition, thus there is symmetry, this makes double-rail piezoelectric energy collector have preferably symmetry and applicability.It compares
Compared with the circular arc type piezoelectric energy collector of monorail, the double track circular arc type piezoelectric energy collector of the technical program not only can be with
The vibrational energy of top surface, side surface direction is absorbed, and has output voltage high, space utilization rate is high, the good advantage of stability, and
Have the characteristics that being easily integrated, micromation.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of double track circular arc type piezoelectric energy collector of the utility model.
Fig. 2 is the output electricity of the utility model circular arc type piezoelectric energy collector and double track circular arc type piezoelectric energy collector
The relational graph of pressure and frequency.
Specific embodiment
The purpose of this utility model, advantage and feature will carry out figure by the non-limitative illustration of preferred embodiment below
Show and explains.These embodiments are only the prominent examples using technical solutions of the utility model, all to take equivalent replacement or wait
Effect transformation and formed technical solution, all fall within the requires of the utility model protection within the scope of.
The utility model discloses a kind of double track circular arc type piezoelectric type energy collector, as shown in Figure 1, a kind of double track circular arc
Type piezoelectric type energy collector, including a cantilever beam, to 1, the cantilever beam is symmetrically connected to by two symmetrical cantilever beams
It forms, each cantilever beam is symmetrically formed by connecting by a circular arc type thin slice 2 and a square sheets 3, specifically, often
A cantilever beam is formed by connecting by two identical circular arc type thin slices with certain radian with square sheets.It is described
Cantilever beam is using from a wealth of sources, ductility is preferable, the phosphor bronze material of easy deformation is made.
It is attached with piezoelectric layer 4 on the circular arc type thin slice, mass block 5 is attached in the square sheets.The piezoelectricity
Layer is PZT-5H.The internal diameter of the piezoelectric layer is 20mm, outer diameter 30mm, and with a thickness of 0.3mm, circular arc degree is 90 degree, 90 degree of arcs
The circular arc type piezoelectric layer of degree is attached on the circular arc type thin slice of 90 degree of radians.The mass block uses the higher nickel material system of density
At mass block is attached in square sheets, and the length of the mass block is respectively 10mm, 10mm, 10mm.Different radians
Double track circular arc type piezoelectric energy collector, corresponding cantilever beam circular arc type thin slice is different from the piezoelectric layer radian that it adheres to.
The left end of the circular arc type thin slice is connected with square sheets, the length and width of the square sheets be respectively LM=
10mm, WM=10mm, width W=10mm, the thickness HS=0.5mm of base, the right end of the circular arc type thin slice are fixing end 6.It is described
The internal diameter Ra of circular arc type thin slice is 20mm, and outer diameter Rb is 30mm, and width 10mm, circular arc degree is 90 degree.
Described two identical cantilever beams to symmetrical as center symmetry axis using the diagonal line of square sheets, this
So that double-rail piezoelectric energy collector has preferably stability.Two panels piezoelectric layer is connect with same mass block, this makes
In the case that extrinsic motivated load is constant, double track circular arc type piezoelectric energy collector can export the energy of higher power.Except this
Except, the space utilization rate of the piezoelectric energy collector of the utility model is effectively promoted in double-rail structure, and then improves
Integrated level of the technical program as the integrated unit little module of piezoelectricity integrated chip.
In order to preferably embody advantage of the structure compared to circular arc type piezoelectric energy collector, apply on mass block top
The 10pa edge load of direction straight down, makes the output voltage and energy of circular arc type Yu double track circular arc type piezoelectric energy collector
The relational graph between frequency is measured, as shown in Fig. 2, abscissa indicates that power, ordinate indicate voltage in Fig. 2.It can be sent out from figure
Existing, for circular arc type piezoelectric energy collector, one class resonant frequency 85Hz, the voltage exported at this time is 0.69V.For
Relational graph between the voltage and frequency of double track circular arc type piezoelectric energy collector, when fundamental frequency is 90Hz, collection of energy
Device has maximum output voltage 0.94V.As it can be seen that compared to arc-shaped piezoelectric energy collector, double track circular arc type energy harvester
With better output high potential advantage.
It can be found in conjunction with Fig. 1, for an equal amount of mass block, the double track circular arc type piezoelectric energy of the technical program is collected
Device is corresponding with two panels piezoelectric layer, and circular arc type piezoelectric type energy collector is monorail structure, only a piece of piezoelectric layer and mass block
It is corresponding.This structure effectively improves space utilization rate, and then improves collection of the utility model as piezoelectricity integrated chip
At the integrated level of unit little module.
The double track circular arc type piezoelectric energy collector of the technical program by the full symmetric cantilever beam of two panels and is attached to it
Piezoelectric layer composition above, thus there is symmetry.This makes double-rail piezoelectric energy collector also have preferably symmetry.
It is compared to the circular arc type piezoelectric energy collector of monorail, the double track circular arc type piezoelectric energy collector of the technical program is not only
It can be absorbed the vibrational energy of top surface, side surface direction, and have output voltage high, space utilization rate is high, good excellent of stability
Gesture, and have the characteristics that being easily integrated, micromation.
Compared to traditional circular arc type piezoelectric energy collector, which uses the two-orbit circle of certain radian
The structure of camber symmetrical expression designs.When incentive action is when mass block, the circular arc type piezoelectric energy collector of specific arc can be with
Generate higher potential.Space utilization rate of the double track circular arc type energy harvester in addition to that can also improve device simultaneously is promoted
Integrated level enhances stability, researching value with higher.
The double track circular arc type structure that the energy harvester of the utility model uses symmetrical structure in summary designs.When sharp
It encourages when acting on mass block, the circular arc type piezoelectric energy collector of specific arc generates higher potential.The double track circular arc type energy
Collector is measured other than exportable superelevation potential, the integrated level of space utilization rate and device can also be improved, and is brought preferably
Stability.
Still there are many embodiment, all technologies formed using equivalents or equivalent transformation for the utility model
Scheme is all fallen within the protection scope of the utility model.
Claims (10)
1. a kind of double track circular arc type piezoelectric type energy collector, it is characterised in that：Including a cantilever beam pair, the cantilever beam to by
Two symmetrical cantilever beams are symmetrically formed by connecting, and each cantilever beam is by a circular arc type thin slice and a square
Thin slice is formed by connecting, and piezoelectric layer is attached on the circular arc type thin slice, is attached with mass block in the square sheets.
2. a kind of double track circular arc type piezoelectric type energy collector according to claim 1, it is characterised in that：The cantilever beam
To symmetrical as center symmetry axis using the diagonal line of square sheets.
3. a kind of double track circular arc type piezoelectric type energy collector according to claim 1, it is characterised in that：The circular arc type
The left end of thin slice is connected with square sheets, and the right end of the circular arc type thin slice is fixing end.
4. a kind of double track circular arc type piezoelectric type energy collector according to claim 1, it is characterised in that：The square
Thin slice is the arc profile bed of material.
5. a kind of double track circular arc type piezoelectric type energy collector according to claim 1, it is characterised in that：The cantilever beam
It is made of phosphor bronze material.
6. a kind of double track circular arc type piezoelectric type energy collector according to claim 1, it is characterised in that：The circular arc type
The internal diameter of thin slice is 20mm, outer diameter 30mm, width 10mm, and circular arc degree is 90 degree.
7. a kind of double track circular arc type piezoelectric type energy collector according to claim 1, it is characterised in that：The piezoelectric layer
For PZT-5H.
8. a kind of double track circular arc type piezoelectric type energy collector according to claim 1, it is characterised in that：The piezoelectric layer
Internal diameter be 20mm, outer diameter 30mm, with a thickness of 0.3mm, circular arc degree is 90 degree.
9. a kind of double track circular arc type piezoelectric type energy collector according to claim 1, it is characterised in that：The mass block
It is made of nickel material.
10. a kind of double track circular arc type piezoelectric type energy collector according to claim 1, it is characterised in that：The quality
The length of block is respectively 10mm, 10mm, 10mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820640098.0U CN208174575U (en) | 2018-05-02 | 2018-05-02 | A kind of double track circular arc type piezoelectric type energy collector |
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| CN201820640098.0U CN208174575U (en) | 2018-05-02 | 2018-05-02 | A kind of double track circular arc type piezoelectric type energy collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448937A (en) * | 2018-05-02 | 2018-08-24 | 南京邮电大学 | A kind of double track circular arc type piezoelectric type energy collector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448937A (en) * | 2018-05-02 | 2018-08-24 | 南京邮电大学 | A kind of double track circular arc type piezoelectric type energy collector |
| CN108448937B (en) * | 2018-05-02 | 2024-03-15 | 南京邮电大学 | Double-track arc piezoelectric energy collector |
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