CN215444292U - Flexible wind power generation device - Google Patents
Flexible wind power generation device Download PDFInfo
- Publication number
- CN215444292U CN215444292U CN202121909344.6U CN202121909344U CN215444292U CN 215444292 U CN215444292 U CN 215444292U CN 202121909344 U CN202121909344 U CN 202121909344U CN 215444292 U CN215444292 U CN 215444292U
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- China
- Prior art keywords
- silver electrode
- flexible
- power generation
- bto
- pvdf
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000010248 power generation Methods 0.000 title claims abstract description 38
- 239000002033 PVDF binder Substances 0.000 claims abstract description 44
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 44
- 239000002131 composite material Substances 0.000 claims abstract description 36
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004332 silver Substances 0.000 claims abstract description 35
- 229910052709 silver Inorganic materials 0.000 claims abstract description 35
- 239000010410 layer Substances 0.000 claims description 32
- -1 polytetrafluoroethylene Polymers 0.000 claims description 18
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 18
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 18
- 239000011241 protective layer Substances 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 8
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 239000004809 Teflon Substances 0.000 claims 1
- 229920006362 Teflon® Polymers 0.000 claims 1
- 239000010408 film Substances 0.000 description 44
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Wind Motors (AREA)
Abstract
The utility model discloses a flexible wind power generation device which comprises a flexible power generation film and a supporting rod, wherein one end of the flexible power generation film is fixed on the supporting rod, the supporting rod is used for supporting the flexible power generation film, the flexible power generation film comprises a PVDF/BTO composite piezoelectric film, a silver electrode layer and a lead, the front surface and the back surface of the PVDF/BTO composite piezoelectric film are respectively provided with the silver electrode layer, the surface of the silver electrode layer is provided with the lead, and the lead is used for conducting charges on the silver electrode layer to form a conducting circuit; the flexible wind power generation device has the advantages of wide region application range, simple structure, low cost, high wind power utilization efficiency and small occupied space.
Description
Technical Field
The utility model belongs to the technical field of wind power generation devices, and particularly relates to a flexible wind power generation device utilizing a PVDF/BTO composite piezoelectric film piezoelectric effect.
Background
The existing wind power generation device is generally a fan type power generation device formed by three twisted blades, when wind blows the blades, a rotor is driven to rotate, power is generated by utilizing the electromagnetic induction principle, the wind power utilization effect is not ideal, equipment is large, the structure is complex, the manufacturing cost is high, the installation and the movement are inconvenient, and the application region range is limited.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a flexible wind power generation device, wherein the PVDF/BTO piezoelectric film is excited by wind power to generate a piezoelectric effect generated by deformation, so that the upper surface and the lower surface of the film generate different charges to form voltage, the utilization efficiency of wind power can be improved, and the power generation device is simple and flexible, low in manufacturing cost, convenient to install and move and not limited by regions.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a flexible wind power generation device, includes flexible electricity generation film and branch, and flexible electricity generation film one end is fixed on the branch, the branch is used for supporting flexible electricity generation film, flexible electricity generation film includes PVDF BTO composite piezoelectric film, silver electrode layer and lead wire, PVDF BTO composite piezoelectric film's tow sides all are provided with the silver electrode layer on the surface, silver electrode layer surface is provided with the lead wire, the lead wire is used for conducting the electric charge formation on the silver electrode layer and switches on the circuit.
Furthermore, the thickness of the PVDF/BTO composite piezoelectric film is 30-70 μm.
Further, the thickness of the silver electrode layer is 10 to 30 μm.
Further, the silver electrode structure also comprises a polytetrafluoroethylene protective layer, wherein the polytetrafluoroethylene protective layer is arranged on the surface of the silver electrode layer.
Furthermore, the thickness of the polytetrafluoroethylene protective layer is 20-50 μm.
Furthermore, one end of the polytetrafluoroethylene protective layer is connected with the supporting rod.
Furthermore, the polytetrafluoroethylene protective layer is bonded on the surface of the silver electrode layer and used for protecting the PVDF/BTO composite piezoelectric film.
Further, the silver electrode layers are respectively plated on the front surface and the back surface of the PVDF/BTO composite piezoelectric film.
Further, the lead is welded on the surface of the silver electrode layer.
Furthermore, the welding adopts soldering.
Compared with the prior art, the utility model has at least the following beneficial effects:
the utility model provides a flexible wind power generation device, which is prepared by adopting a PVDF/BTO piezoelectric film, has the advantages of wide region application range, simple structure, low cost, high wind power utilization efficiency and small occupied space, is prepared by the PVDF/BTO piezoelectric film with micron-level thickness, controllable tiling area and overlapping use, and can fully utilize limited space and wind power.
Furthermore, the core component of the flexible wind power generation device adopts PVDF and BTO environment-friendly materials, so that the recovery or reprocessing of the device has no pollution to the environment.
Drawings
FIG. 1 is a front view of a PVDF/BTO composite piezoelectric film wind energy power generation device.
FIG. 2 is a cross-sectional view taken along line I-I of FIG. 1.
FIG. 3 is a circuit diagram of a PVDF/BTO composite piezoelectric thin film.
FIG. 4 is a schematic diagram of the piezoelectric effect of PVDF/BTO composite piezoelectric film.
Fig. 5 is a voltage output diagram of the power generation device in a blowing state.
In the drawings: 1. the piezoelectric ceramic comprises a polytetrafluoroethylene protective layer, 2. a PVDF/BTO composite piezoelectric film, 3. a silver electrode layer, 4. a lead and 5. a support rod.
Detailed Description
The utility model is further described with reference to the following figures and detailed description.
As shown in fig. 1 and 2, the present invention provides a flexible wind power generation apparatus, which includes a flexible power generation film and a support rod 5, wherein one end of the flexible power generation film is fixed on the support rod 5, and the support rod 5 is used for supporting the flexible power generation film; the flexible power generation film comprises a polytetrafluoroethylene protective layer 1, a PVDF/BTO composite piezoelectric film 2, a silver electrode layer 3 and a lead 4, wherein:
the PVDF/BTO composite piezoelectric film 2 is prepared by a tape casting method, and raw materials are PVDF N, N-dimethylformamide solution and BTO powder in a mass ratio of 9: 1;
preferably, in the casting process, the PVDF/BTO mixed solution is placed on a casting machine, the thickness of a single-layer casting layer is controlled to be 0.5-1mm, after casting, the membrane is placed in a constant-temperature drying oven (20 ℃) to be dried, after N, N-dimethylformamide is completely volatilized, a PVDF/BTO composite film is prepared, and the PVDF/BTO composite film is subjected to high-temperature stretching and electric field polarization, so that the PVDF/BTO composite piezoelectric film 2 with the thickness of 30-70 mu m is obtained.
The front surface and the back surface of the PVDF/BTO composite piezoelectric film 2 are respectively provided with a silver electrode layer 3 which is used for collecting charges generated on the surface of the PVDF/BTO composite piezoelectric film 2; the surface of the silver electrode layer 3 is provided with a lead 4, and the lead 4 is used for conducting charges on the silver electrode layer 3 to form a conducting circuit; the silver electrode layer 3 is provided with a polytetrafluoroethylene protective layer 1, and one end of the polytetrafluoroethylene protective layer 1 is connected with the supporting rod 5.
Preferably, the polytetrafluoroethylene protective layer 1 is adhered to the surface of the silver electrode layer 3 and used for protecting the PVDF/BTO composite piezoelectric film 2, and the PVDF/BTO composite piezoelectric film 2 is a core for converting wind energy into electric energy;
preferably, the silver electrode layers 3 are plated on the front surface and the back surface of the PVDF/BTO composite piezoelectric film 2;
preferably, the lead 4 is soldered to the surface of the silver electrode layer 3 and soldered thereto.
Preferably, the polytetrafluoroethylene protective layer 1 encapsulates the flexible power generation film, one end of the polytetrafluoroethylene protective layer 1 is connected with the support rod 5, and the support rod 5 plays a supporting role.
When the power generation device is excited by wind energy, the power generation device swings with wind, at the moment, the whole power generation device generates deformation, the PVDF/BTO composite piezoelectric film also generates deformation, different charges are formed on the upper surface and the lower surface of the piezoelectric film based on the piezoelectric effect principle of materials, the silver electrode layer 3 collects the charges on the surface of the PVDF/BTO composite piezoelectric film 2 and then leads out the charges through the lead 4, and a current is formed in an external circuit. The PVDF/BTO composite piezoelectric film wind power generation device is the working principle of the PVDF/BTO composite piezoelectric film wind power generation device.
Preferably, the thickness of the upper and lower polytetrafluoroethylene protective layers 1 is 20-50 μm;
preferably, the thickness of the PVDF/BTO composite piezoelectric film 2 is 30-70 μm;
preferably, the silver electrode layers 3 are plated on the upper surface and the lower surface of the PVDF/BTO composite piezoelectric film, and the thickness is 10-30 micrometers.
The polytetrafluoroethylene protective layer 1 plays a role in protection and is used for protecting the PVDF/BTO composite piezoelectric film 2 of the core device;
fig. 3 is a circuit diagram of a PVDF/BTO composite piezoelectric film, and after being excited by wind, the PVDF/BTO composite piezoelectric film 2 deforms, that is, as shown in fig. 4, heterogeneous charges are generated on the upper and lower surfaces of the PVDF/BTO composite piezoelectric film 2, and the charges are collected by silver electrode layers plated on the upper and lower surfaces of the PVDF/BTO composite piezoelectric film 2, and at this time, the charges are conducted to an external circuit through the flow of a lead 4, so as to form a current.
Testing the power generation performance:
as shown in fig. 5, the power generation device of the present invention is placed under a fan to blow air, and an oscilloscope is used to test the voltage output value of the power generation device of the present invention in the air blowing state, wherein the voltage output value is at most 3.8V, and tens of LED lamps can be completely lighted, and the power generation device of the present invention has great application potential for street lamp lighting or micro-system power supply.
Claims (10)
1. The utility model provides a flexible wind power generation device, its characterized in that, includes flexible electricity generation film and branch (5), and flexible electricity generation film one end is fixed on branch (5), branch (5) are used for supporting flexible electricity generation film, flexible electricity generation film includes compound piezoelectric film (2) of PVDF BTO, silver electrode layer (3) and lead wire (4), all be provided with silver electrode layer (3) on the tow sides surface of compound piezoelectric film (2) of PVDF BTO, silver electrode layer (3) surface is provided with lead wire (4), lead wire (4) are used for conducting the electric charge formation on silver electrode layer (3) and switch on the circuit.
2. The flexible wind energy generation device according to claim 1, characterized in that the thickness of the PVDF/BTO composite piezoelectric film (2) is 30-70 μm.
3. The flexible wind energy generation device according to claim 1, characterized in that the thickness of the silver electrode layer (3) is 10 μm to 30 μm.
4. The flexible wind power generation device according to claim 1, further comprising a polytetrafluoroethylene protective layer (1), wherein the polytetrafluoroethylene protective layer (1) is arranged on the surface of the silver electrode layer (3).
5. A flexible wind-power unit according to claim 4, characterized in that said polytetrafluoroethylene protective layer (1) has a thickness of 20-50 μm.
6. A flexible wind-power unit according to claim 4 characterized in that said Teflon-coated layer (1) is connected to a strut (5) at one end.
7. The flexible wind power generation device according to claim 4, characterized in that the polytetrafluoroethylene protective layer (1) is bonded on the surface of the silver electrode layer (3) for protecting the PVDF/BTO composite piezoelectric film (2).
8. The flexible wind power generation device according to claim 1, wherein the silver electrode layers (3) are respectively plated on the front surface and the back surface of the PVDF/BTO composite piezoelectric film (2).
9. The flexible wind energy generator according to claim 1, wherein said leads (4) are soldered to the surface of the silver electrode layer (3).
10. The flexible wind energy generation device of claim 9, wherein said welding is by soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121909344.6U CN215444292U (en) | 2021-08-13 | 2021-08-13 | Flexible wind power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121909344.6U CN215444292U (en) | 2021-08-13 | 2021-08-13 | Flexible wind power generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215444292U true CN215444292U (en) | 2022-01-07 |
Family
ID=79694239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121909344.6U Expired - Fee Related CN215444292U (en) | 2021-08-13 | 2021-08-13 | Flexible wind power generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215444292U (en) |
-
2021
- 2021-08-13 CN CN202121909344.6U patent/CN215444292U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |