CN208143112U - A kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector - Google Patents
A kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector Download PDFInfo
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- CN208143112U CN208143112U CN201820629144.7U CN201820629144U CN208143112U CN 208143112 U CN208143112 U CN 208143112U CN 201820629144 U CN201820629144 U CN 201820629144U CN 208143112 U CN208143112 U CN 208143112U
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- base plate
- elastic base
- beam elastic
- friction
- cantilever beam
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- 238000010276 construction Methods 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000741 silica gel Substances 0.000 claims abstract description 7
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 7
- 239000010409 thin film Substances 0.000 claims abstract description 7
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 6
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- 238000006243 chemical reaction Methods 0.000 description 5
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- 238000000926 separation method Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 3
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- 230000005489 elastic deformation Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The utility model discloses a kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collectors, including the construction pedestals fixed with external source, it is connect at the top of the construction pedestals with one end of supporting beam elastic base plate, top movable in one end of supporting beam elastic base plate is connected with one end of cantilever beam elastic base plate, friction buffer layer is successively arranged at the top of the other end of the supporting beam elastic base plate, electrode layer, the bottom of the other end of supporting beam elastic base plate is equipped with electromagnetic induction coil, the top of the other end of the cantilever beam elastic base plate is equipped with magnet, the bottom of the other end of cantilever beam elastic base plate is successively arranged friction buffer layer, electrode layer, silica gel thin film layer, the top of the cantilever beam elastic base plate is equipped with piezoelectric element.The utility model, which solves existing vibrational energy acquisition device, specific intrinsic frequency, when dynamic excitation deviates its intrinsic frequency, the low problem of capacity usage ratio.
Description
Technical field
The utility model belongs to energy conversion devices technical field, is related to a kind of cantilever beam for adapting to external vibration environment
Formula electromagnetism-friction-Piezoelectric anisotropy vibration energy collector.
Background technique
Ambient vibration can be widely present in various electric machinery control devices, transportation equipment as common form of energy
And in the activity of organism.The vibrational energy in environment is acquired, for solving various portable electronic devices, electronic monitor
The energy stabilizing supply problem of part, sensing network, has important research significance and use value；Meanwhile it is also traditional to solve
The problems such as storage battery power supply mode service life is limited, environmental pollution is serious provides the new approaches of research.Existing vibrational energy
Amount acquisition device has specific intrinsic frequency, and when dynamic excitation deviates its intrinsic frequency, capacity usage ratio is low.
Summary of the invention
The utility model solves the deficiencies in the prior art, provides a kind of adjustable system frequency, realizes energy
Measure the arm beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector of acquisition device and external source being effectively matched.
Used technical solution is the utility model to achieve the goals above：
A kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector, including what is fixed with external source
Construction pedestals, the construction pedestals top is connect with one end of supporting beam elastic base plate, in one end of supporting beam elastic base plate
Top movable is connected with one end of cantilever beam elastic base plate, is successively arranged and rubs at the top of the other end of the supporting beam elastic base plate
Buffer layer, electrode layer are wiped, the bottom of the other end of supporting beam elastic base plate is equipped with electromagnetic induction coil, the cantilever beam elasticity base
The top of the other end of plate is equipped with magnet, and the bottom of the other end of cantilever beam elastic base plate is successively arranged friction buffer layer, electrode
The top of layer, silica gel thin film layer, the cantilever beam elastic base plate is equipped with piezoelectric element.The construction pedestals of the utility model and outside
Driving source is fixed, and supporting beam elastic base plate and one end of cantilever beam elastic base plate are fixed with construction pedestals, by external source
When vibrational excitation, the different supporting beam elastic base plate of elastic strength is different with the elastic deformation of cantilever beam elastic base plate, as outstanding
Under the booster action of the cylinder-shaped magnet of arm beam elastic base plate mass block, the relative friction layer of triboelectricity unit is in elastic base plate
The other end forms effective contact-disengaging movement, generates electric current in external circuit by the coupling of frictional electricity and electrostatic induction；
Meanwhile having biggish moving displacement in the cylinder-shaped magnet of the cantilever beam elastic base plate other end, make through supporting beam elastic base plate
The magnetic flux of the electromagnetic induction coil of the other end changes, and generates em induced current；It is pasted onto cantilever beam elastic base plate table
The piezoelectric element in face bends deformation, generates piezoelectricity output.The utility model make triboelectricity unit, Electromagnetic generation unit and
Piezo-electric generating unit cooperates, intrinsic in the fixation position of construction pedestals adjusting power generator by adjusting elastic base plate one end
Frequency adapts to the frequency shift of external vibration environment, the vibrational energy in more efficient conversion environment.
Further, one end of the cantilever beam elastic base plate is consolidated equipped with equidistant with construction pedestals between piezoelectric element
Fixed through-hole；One end of the supporting beam elastic base plate to be equipped between the other end it is equidistant with it is logical on cantilever beam elastic base plate
Corresponding and fixed with the construction pedestals through-hole in hole.The utility model is corresponding in supporting beam elastic base plate, cantilever beam elastic base plate
Equidistant multiple through-holes are respectively stayed in position, select suitable vias to fix with construction pedestals according to external drive source frequency, keep system
The stability of vibration, lead to the hole site is adjustable, to adapt to the variation of extraneous vibration driving source.
Further, substrate gasket is equipped between the supporting beam elastic base plate and the bearing of cantilever beam elastic base plate,
And by through-hole, fixed using bolt and construction pedestals.
Preferably, the elasticity modulus of the supporting beam elastic base plate is greater than the elasticity modulus with cantilever beam elastic base plate.Branch
Beam elastic base plate, cantilever beam elastic base plate are supportted as dual extension-compression modulus material, supporting beam elastic base plate has biggish springform
Amount, under external force, the flexible deformation of generation is smaller, and cantilever beam elastic base plate has lesser elasticity modulus, in outer masterpiece
Under, the flexible deformation of generation is larger.The supporting beam elastic base plate cannot be magnetized, and will not be attracted by magnet.Cantilever beam bullet
Property substrate can be magnetized, can be attracted by magnet, to form stronger connection with cylinder-shaped magnet.Make in external source
Under, the free end of the cantilever beam elastic base plate on top generates large curved deformation, free with the supporting beam elastic base plate of lower part
End forms contact-separation process.
Preferably, the piezoelectric element is piezoelectric sheet.
Preferably, the magnet is cylinder-shaped magnet.The utility model cylinder-shaped magnet is the matter of cantilever beam elastic base plate
Gauge block has effectively facilitated the motion amplitude and dynamics of cantilever beam elastic base plate, enhances triboelectricity effect.
Preferably, the silica gel thin film layer is prepared by differing biggish polymer material with electrode material friction electrode sequence,
By with contact-separation process simultaneously as the relative friction layer of electrode layer, realize triboelectricity function.
The intrinsic frequency of the adjustable device of the utility model integrates triboelectricity unit, Electromagnetic generation unit and piezoelectricity
Generator unit is integrated, and relative to traditional energy resource collecting device, has higher energy resource collecting efficiency and better environment suitable
Ying Xing can solve the vibrational energy acquisition problems of the environment such as factory's lathe, facilities for transport and communication；By adjust elastic base plate with
The fixation position of construction pedestals, elastic base plate generate covibration, triboelectricity unit and Electromagnetic generation list under dynamic excitation
Member, piezo-electric generating unit cooperate, and obtain higher energy conversion efficiency；The vibrational energy of adjustable system frequency
Acquisition device, realization electricity energy harvester and external source are effectively matched, and can be further increased power generator and be adapted to ring
The ability in border.Cantilever beam-mass block structure can effectively acquire the mode of vibrational energy as one kind, have in field of piezoelectric generation
Cantilever beam-mass block structure is applied to triboelectricity and Electromagnetic generation field, can be improved compound by extensive research and application
The energy conversion efficiency of power generator, has broad application prospects.
Detailed description of the invention
The utility model is further described referring now to the drawings, wherein：
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of the utility model；
Fig. 3 is the bottom view of the utility model；
Fig. 4 is the structure chart of elastic base plate.
Description of symbols：1, supporting beam elastic base plate, 2, cantilever beam elastic base plate, 3, electromagnetic induction coil, 4, friction
Buffer layer, 5, electrode layer, 6, silica gel thin film layer, 7, magnet, 8, piezoelectric sheet, 9, bolt, 10, substrate gasket, 11, structure base
Seat, 12, through-hole.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
As shown in Figures 1 to 4, a kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector, including with it is outer
The fixed construction pedestals 11 of portion's driving source, 11 top of construction pedestals connect with one end of supporting beam elastic base plate 1, are supporting
The top movable of 1 one end of beam elastic base plate is connected with one end of cantilever beam elastic base plate 2, the supporting beam elastic base plate 1 it is another
Friction buffer layer 4, electrode layer 5 are successively arranged at the top of one end, the bottom of the other end of supporting beam elastic base plate 1 is equipped with electromagnetism sense
Coil 3 is answered, the top of the other end of the cantilever beam elastic base plate 2 is equipped with magnet 7, the other end of cantilever beam elastic base plate 2
Bottom is successively arranged friction buffer layer 4, electrode layer 5, silica gel thin film layer 6, and the top of the cantilever beam elastic base plate 2 is equipped with piezoelectricity
Component.The construction pedestals 11 and external source of the utility model are fixed, supporting beam elastic base plate 1 and cantilever beam elastic base plate 2
One end and construction pedestals 11 it is fixed, when by external source vibrational excitation, the different supporting beam elastic base plate 1 of elastic strength
It is different with 2 elastic deformation of cantilever beam elastic base plate, in the auxiliary of the cylinder-shaped magnet 7 as 2 mass block of cantilever beam elastic base plate
Under effect, the relative friction layer of triboelectricity unit forms effective contact-disengaging movement in the elastic base plate other end, passes through friction
The coupling of raw electricity and electrostatic induction generates electric current in external circuit；Meanwhile in the cylinder of 2 other end of cantilever beam elastic base plate
Magnet 7 has biggish moving displacement, makes to occur by the magnetic flux of the electromagnetic induction coil 3 of 1 other end of supporting beam elastic base plate
Variation generates em induced current；The piezoelectric element for being pasted onto 2 surface of cantilever beam elastic base plate bends deformation, generates pressure
Electricity output.The utility model makes triboelectricity unit, Electromagnetic generation unit and piezo-electric generating unit cooperate, by adjusting bullet
Property substrate one end construction pedestals 11 fixation position adjust power generator intrinsic frequency, adapt to external vibration environment frequency change
Become, the vibrational energy in more efficient conversion environment.
Further, one end of the cantilever beam elastic base plate 2 is to being equipped with equidistant and construction pedestals between piezoelectric element
11 fixed through-holes 12；One end of the supporting beam elastic base plate 1 is equidistant with cantilever beam elasticity base to being equipped between the other end
Corresponding and fixed with the construction pedestals through-hole 12 of through-hole 12 on plate 2.The utility model is in supporting beam elastic base plate 1, cantilever
2 corresponding position of beam elastic base plate respectively stays equidistant multiple through-holes 12, selects suitable vias 12 and knot according to external drive source frequency
Structure pedestal 11 is fixed, keeps the stability of system vibration, and 12 position of through-hole is adjustable, to adapt to the variation of extraneous vibration driving source.
Further, substrate gasket is equipped between the supporting beam elastic base plate 1 and the bearing of cantilever beam elastic base plate 2
10, and it is fixed by bolt 9 and construction pedestals 11.
Preferably, the elasticity modulus of the supporting beam elastic base plate 1 is greater than the elasticity modulus with cantilever beam elastic base plate 2.
Supporting beam elastic base plate 1, cantilever beam elastic base plate 2 are dual extension-compression modulus material, and supporting beam elastic base plate 1 has biggish bullet
Property modulus, under external force, the flexible deformation of generation is smaller, cantilever beam elastic base plate 2 have lesser elasticity modulus, outside
Under power effect, the flexible deformation of generation is larger.The supporting beam elastic base plate 1 cannot be magnetized, and will not be attracted by magnet, cantilever
Beam elastic base plate 2 can be magnetized, and can be attracted by magnet 7, to form stronger connection with cylinder-shaped magnet.Swash in outside
It encourages under the effect of source, the free end of the cantilever beam elastic base plate 2 on top generates large curved deformation, the supporting beam elasticity base with lower part
1 free end of plate forms contact-separation process.
Preferably, the piezoelectric element is piezoelectric sheet 8.
Preferably, the magnet 7 is cylinder-shaped magnet 7.The utility model cylinder-shaped magnet 7 is cantilever beam elastic base plate 2
Mass block, effectively facilitated the motion amplitude and dynamics of cantilever beam elastic base plate 2, enhanced triboelectricity effect.
Preferably, the silica gel thin film layer 6 is prepared by differing biggish polymer material with electrode material friction electrode sequence,
By with contact-separation process simultaneously as the relative friction layer of electrode layer, realize triboelectricity function.
Listed above is only specific embodiment of the utility model, does not constitute and appoints to the protection scope of the utility model
What is limited, and device architecture is not by elastic base plate size, material and shape, cushioning layer material type, thickness, triboelectricity unit material
Expect type, piezo-electric generating unit material type, coil turn, size, number, the limitation such as magnet size, shape, certain this field
Technical staff the utility model can be modified and be deformed, it should be noted that：If these modification and variation belong to
Within the scope of the claims of the present invention and its equivalent technology, it is considered as the protection scope of the utility model.
Claims (6)
1. a kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector, which is characterized in that including swashing with outside
The fixed construction pedestals in source are encouraged, are connect at the top of the construction pedestals with one end of supporting beam elastic base plate, in supporting beam elasticity base
The top movable of one end of plate is connected with one end of cantilever beam elastic base plate, the top of the other end of the supporting beam elastic base plate
It is successively arranged friction buffer layer, electrode layer, the bottom of the other end of supporting beam elastic base plate is equipped with electromagnetic induction coil, described outstanding
The top of the other end of arm beam elastic base plate is equipped with magnet, and it is slow that the bottom of the other end of cantilever beam elastic base plate is successively arranged friction
Layer, electrode layer, silica gel thin film layer are rushed, the top of the cantilever beam elastic base plate is equipped with piezoelectric element.
2. beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector according to claim 1, feature exist
In one end of, the cantilever beam elastic base plate to being equipped with the equidistant through-hole fixed with construction pedestals between piezoelectric element；It is described
One end of supporting beam elastic base plate to be equipped between the other end it is equidistant corresponding with the through-hole on cantilever beam elastic base plate and with
The fixed through-hole of construction pedestals.
3. beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector according to claim 1, feature exist
In being equipped with substrate gasket between the supporting beam elastic base plate and the bearing of cantilever beam elastic base plate, and by through-hole, utilize
Bolt is fixed with construction pedestals.
4. beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector according to claim 1, feature exist
In the elasticity modulus of the supporting beam elastic base plate is greater than the elasticity modulus with cantilever beam elastic base plate.
5. beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector according to claim 1, feature exist
In the piezoelectric element is piezoelectric sheet.
6. beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector according to claim 1, feature exist
In the magnet is cylinder-shaped magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820629144.7U CN208143112U (en) | 2018-04-28 | 2018-04-28 | A kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820629144.7U CN208143112U (en) | 2018-04-28 | 2018-04-28 | A kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector |
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| Publication Number | Publication Date |
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| CN208143112U true CN208143112U (en) | 2018-11-23 |
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| CN201820629144.7U Expired - Fee Related CN208143112U (en) | 2018-04-28 | 2018-04-28 | A kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551273A (en) * | 2018-04-28 | 2018-09-18 | 忻州师范学院 | A kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector |
| CN109889082A (en) * | 2019-04-19 | 2019-06-14 | 清华大学 | Vibration based on friction generator-magnetic field energy mixed collection device |
| CN112117928A (en) * | 2020-08-06 | 2020-12-22 | 西安交通大学 | Friction-piezoelectric-electromagnetic combined magnetic energy collecting device |
| CN114735179A (en) * | 2022-04-24 | 2022-07-12 | 南京航空航天大学 | Imitative cuttlefish wave fin based on piezoelectric fiber composite drive |
| US11412810B2 (en) * | 2020-12-07 | 2022-08-16 | Shanghai University | Shoe energy collecting device |
-
2018
- 2018-04-28 CN CN201820629144.7U patent/CN208143112U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551273A (en) * | 2018-04-28 | 2018-09-18 | 忻州师范学院 | A kind of beam type electromagnetism-friction-Piezoelectric anisotropy vibration energy collector |
| CN109889082A (en) * | 2019-04-19 | 2019-06-14 | 清华大学 | Vibration based on friction generator-magnetic field energy mixed collection device |
| CN112117928A (en) * | 2020-08-06 | 2020-12-22 | 西安交通大学 | Friction-piezoelectric-electromagnetic combined magnetic energy collecting device |
| US11412810B2 (en) * | 2020-12-07 | 2022-08-16 | Shanghai University | Shoe energy collecting device |
| CN114735179A (en) * | 2022-04-24 | 2022-07-12 | 南京航空航天大学 | Imitative cuttlefish wave fin based on piezoelectric fiber composite drive |
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