CN210839393U - Bottle-shaped sound-electricity conversion power generation device - Google Patents
Bottle-shaped sound-electricity conversion power generation device Download PDFInfo
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- CN210839393U CN210839393U CN201922116806.8U CN201922116806U CN210839393U CN 210839393 U CN210839393 U CN 210839393U CN 201922116806 U CN201922116806 U CN 201922116806U CN 210839393 U CN210839393 U CN 210839393U
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Abstract
The utility model discloses a bottle form sound-electricity conversion power generation facility, include: the energy-saving device comprises a shell, a power supply and a control circuit, wherein the shell is a hollow cylinder with openings at two opposite ends, the two opposite ends are respectively a first opening end and a second opening end, and a rectification circuit and an energy storage circuit are arranged in a cavity of the shell; the PVDF film is arranged at the first opening end, the middle part of the PVDF film is sunken towards the position of the second opening end, and the PVDF film is electrically connected with the energy storage circuit after being led out by a lead for an electrode; the metal net is arranged at the second opening end, the middle part of the metal net is provided with a groove towards the position of the first opening end, and one, two or more piezoelectric components are arranged on the metal net; a piezoelectric assembly, comprising: the piezoelectric film comprises a metal foil and piezoelectric ceramic pieces arranged on two sides of the metal foil, wherein the metal foil in the piezoelectric assembly is electrically connected with the PVDF energy storage circuit through a rectifying circuit. The utility model discloses combine sound pressure, vibrations to have formed the electricity generation system that uses the sound pressure as the main, vibrations as assisting with organic.
Description
Technical Field
The utility model relates to a power generation facility, concretely relates to bottle form sound-electricity conversion power generation facility.
Background
In recent years, with the improvement of environmental awareness and the popularization of knowledge, air pollution, water pollution and solid waste pollution can be properly solved, and even waste is turned into wealth, but the field of noise utilization is not mature.
The current treatment of noise pollution in the world mainly converts noise into other energy by arranging isolation or protection on the transmission path of the noise pollution, but the noise energy cannot be effectively utilized. With the continuous development of science and technology, there are many research results on generating electricity by using sound wave vibration, such as traveling wave thermoacoustic generators, micro hall mutz piezoelectric type sound energy generators, flow nano sound energy generators, acoustic crystal resonant cavity sound energy generating systems, electromagnetic noise generating systems (composed of resonant engines and permanent magnet generators), and the like.
The permanent magnet power generation vibrator is often adopted in the field of industrial power generation as excitation of a motor, so that the permanent magnet power generation vibrator is matched with the vibration of noise waves, the sound-electricity conversion is easier, and the sound-electricity conversion efficiency is improved. Nevertheless, noise power generation still faces the problems that noise sound power changes with sound source, propagation path, main frequency of noise source, etc. The factors influencing the performance of the power generation system are mainly as follows: the sound-electricity conversion efficiency of the energy converter limits the improvement of the power generation efficiency of the sound energy power generation device; the integration level of the acoustic energy power generation device is low, which is not beneficial to improving the system efficiency; the existing processing technology also influences the power generation efficiency to a certain extent. Therefore, the improvement of the processing technology is the current development direction for optimizing single parameters of the system and the whole system, widening the bandwidth of the system, and driving the system with high power and low voltage, miniaturization and integration.
The piezoelectric power generation technology is a high and new technology, and has attracted attention in the world in recent ten years and is widely researched. The piezoelectric device generates electric charges under the alternating action of external force, and the electric charges are collected and stored in a capacitor or a batteryAnd power can be supplied to the subsequent electronic components and systems. The piezoelectric energy collecting device has the advantages of small volume, simple structure, no electromagnetic interference, easy processing and manufacture, and the power density of the piezoelectric energy collecting device can reach 200 mu W/cm3. From the research results of various research institutions and experts at present, piezoelectric materials can be used for sensors and actuators, and can also be used as devices for supplying electric energy. With the improvement of piezoelectric performance and high integration of piezoelectric materials and the use of low-power consumption electronic devices, piezoelectric power generation technology has become a hot point of research.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a bottle form sound-electricity conversion power generation facility.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a bottle-shaped acoustic-electric conversion power generation device, comprising:
the energy-saving device comprises a shell, a power supply and a control circuit, wherein the shell is a hollow cylinder with openings at two opposite ends, the two opposite ends are respectively a first opening end and a second opening end, and a rectification circuit and an energy storage circuit are arranged in a cavity of the shell;
the PVDF film is arranged at the first opening end, the middle part of the PVDF film is sunken towards the position of the second opening end, and the PVDF film is electrically connected with the energy storage circuit after being led out by a lead for an electrode;
the metal net is arranged at the second opening end, the middle part of the metal net is provided with a groove towards the position of the first opening end, and one, two or more piezoelectric components are arranged on the metal net;
a piezoelectric assembly, comprising: the piezoelectric film comprises a metal foil and piezoelectric ceramic pieces arranged on two sides of the metal foil, wherein the metal foil in the piezoelectric assembly is electrically connected with the PVDF energy storage circuit through a rectifying circuit.
The utility model discloses a what bottle form sound-electricity conversion power generation facility adopted is the double-deck design of equal indent from top to bottom, and the sound wave can be strengthened in the reflection of these two curved surfaces to this structure, can more efficient utilize the sound wave. The device converts high-frequency sound in life into electric energy, so to speak, the sound energy is inexhaustible and inexhaustible, and the device organically combines sound pressure and vibration to form a power generation system taking the sound pressure as a main part and the vibration as an auxiliary part.
On the basis of the technical scheme, the following improvements can be made:
preferably, the aperture of the cavity of the housing is gradually increased from the first opening end to the second opening end.
By adopting the preferable scheme, the horn-shaped cavity structure has better guidance.
Preferably, the wall thickness of the first open end of the housing is greater than the wall thickness of the second open end of the housing.
By adopting the preferable scheme, the mold opening is simpler.
Preferably, the wall thickness of the first open end of the housing is the same as the wall thickness of the second open end of the housing.
With the preferred scheme, the overall mechanical strength of the shell is better.
Preferably, the rectifier circuit includes: four rectifier diodes, a fast turn-off diode and a filter capacitor.
By adopting the preferable scheme, the structure is simple and the cost is low.
Preferably, the tank circuit includes: graphite alkene ultracapacitor system.
By adopting the preferable scheme, the graphene is used as an electrode material of the supercapacitor, has a stable internal structure, and is an optimal material for adhering to the double-layer energy storage principle of the supercapacitor.
Preferably, the metal foil and the ceramic piezoelectric sheet are bonded.
By adopting the preferable scheme, the connection effect is good.
Preferably, the housing is cylindrical.
By adopting the preferable scheme, the appearance is beautiful.
Preferably, the part of the shell, which is close to the first opening end, is a film pasting part, and the outer diameter of the film pasting part is gradually reduced from the second opening end to the position of the first opening end; and a PVDF film is also adhered to the outer surface of the film adhering part, and the PVDF film is electrically connected with the energy storage circuit after being led out by a lead for an electrode.
With the above preferred scheme, the conversion efficiency of the internal piezoelectric ceramic is also affected because the direction in which the sound source appears is random. But the PVDF film is also a functional material with high piezoelectricity, can be made very thin, and can be applied to the bottle-shaped shell and the first opening end to cope with the randomness of the external vibration direction, and the stress source of the PVDF film is greatly increased.
Preferably, the mesh size of the metal net gradually increases from the middle part to the periphery.
By adopting the preferable scheme, the vibration effect is better.
Drawings
Fig. 1 is a schematic structural diagram of a bottle-shaped acoustoelectric conversion power generation device according to an embodiment of the present invention.
Fig. 2 is a second schematic structural diagram of a bottle-shaped acoustoelectric conversion power generation device according to an embodiment of the present invention.
Fig. 3 is a third schematic structural diagram of a bottle-shaped acoustoelectric conversion power generation device according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a PVDF film and an electrode provided by an embodiment of the invention.
Fig. 5 is a schematic block diagram of a bottle-shaped sound-electricity conversion power generation device according to an embodiment of the present invention.
Fig. 6 is a circuit diagram of a rectifying circuit and a tank circuit provided by the embodiment of the present invention.
Wherein: 1-a shell; 11-a first open end; 12-a second open end; 13-a film pasting part; 2-PVDF film; 3-a metal mesh; 4-electrodes.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In order to achieve the object of the present invention, in some embodiments of a bottle-shaped sound-electricity conversion power generation device, as shown in fig. 1 to 3 and 5, the bottle-shaped sound-electricity conversion power generation device includes:
the energy-saving device comprises a shell 1, wherein the shell 1 is a hollow cylinder with openings at two opposite ends, the two opposite ends are respectively a first opening end 11 and a second opening end 12, and a rectification circuit and an energy storage circuit are arranged in a cavity of the shell 1;
the PVDF (polyvinylidene fluoride) film 2 is arranged at the first opening end 11, the middle part of the PVDF film 2 is sunken towards the position of the second opening end 12, and the PVDF film 2 is led out by a lead wire through the electrode 4 and then is electrically connected with the energy storage circuit;
the metal net 3 is arranged at the second opening end 12, the middle part of the metal net 3 is grooved towards the position of the first opening end 11, and one, two or more piezoelectric components are arranged on the metal net 3;
a piezoelectric assembly (not shown in the figures) comprising: the piezoelectric film comprises a metal foil and piezoelectric ceramic pieces arranged on two sides of the metal foil, wherein the metal foil in the piezoelectric assembly is electrically connected with the PVDF energy storage circuit through a rectifying circuit.
The metal mesh 3 may be a copper mesh.
The utility model discloses a what bottle form sound-electricity conversion power generation facility adopted is the double-deck design of equal indent from top to bottom, and the sound wave can be strengthened in the reflection of these two curved surfaces to this structure, can more efficient utilize the sound wave. The device converts high-frequency sound in life into electric energy, so to speak, the sound energy is inexhaustible and inexhaustible, and the device organically combines sound pressure and vibration to form a power generation system taking the sound pressure as a main part and the vibration as an auxiliary part.
Further optimize the utility model discloses an implement the effect, in some other embodiments, all the other characteristic techniques are the same, and the difference lies in, the bore size of casing 1 cavity is crescent along first open end 11 to second open end 12.
By adopting the preferable scheme, the horn-shaped cavity structure has better guidance.
Further, the wall thickness of the first open end 11 of the housing 1 is larger than the wall thickness of the second open end 12 of the housing 1.
By adopting the preferable scheme, the mold opening is simpler. Of course, in other embodiments, the wall thickness of the first open end 11 of the housing 1 is the same as the wall thickness of the second open end 12 of the housing 1, so that the overall mechanical strength of the housing 1 is better.
The utility model discloses what inner structure adopted is the double-deck design of the equal indent from top to bottom. The structure can enhance the reflection of the sound waves on the two curved surfaces so as to more efficiently utilize the sound waves. The first layer of the double-layer structure is made of PVDF piezoelectric film materials, the second layer of the double-layer structure is made of piezoelectric components, and the two layers can receive vibration of sound waves at the same time. The two layers are connected by a horn shape, the horn shape has better guidance quality, and the horn-shaped structure and the external structure form an inner cavity which can be used for placing circuits and converters.
The two ends of the piezoelectric ceramic plate electrodes are respectively connected by silver wires and realize the conversion of electric power through a rectifying circuit. The converted circuit and the PVDF film 2 are led out by a lead wire for an electrode and then connected in parallel, and then are connected with an energy storage circuit.
When piezoelectric assembly is a plurality of, the utility model discloses internal design is a plurality of piezoelectric assembly resonance electricity generation, and the piezoceramics piece bonding after two high-pressure polarizations is on the metal foil two sides, and two piezoceramics pieces consequently the same alternating current accessible metal foil conduction that appears on the surface and link to each other with parallel circuit, consequently have the same high low resonant frequency. When one piezoelectric ceramic piece is deformed to generate vibration, the metal net 3 vibrates along with the vibration, so that resonance is generated to drive other ceramic pieces to vibrate together, and power is generated.
The designed working principle of the device is as follows: when the sound reaches PVDF (the smaller concave surface), it is deformed under pressure, thereby generating electricity. The concave structure can increase the pressed area to the maximum extent and can also better receive sound waves. The upper concave type double-layer structure and the lower concave type double-layer structure can gather sound which is wasted through PVDF before and transmit the sound to the piezoelectric component in a dispersed mode. The sound waves vibrate and deform the piezoelectric ceramics, so that power is generated. The whole device fully utilizes the positive piezoelectric effect of the piezoelectric material.
In order to further optimize the implementation effect of the present invention, in other embodiments, the rest of the feature technologies are the same, except that the rectifier circuit includes: four rectifier diodes, a fast turn-off diode and a filter capacitor.
By adopting the preferable scheme, the structure is simple and the cost is low. Specifically, as shown in fig. 6, a simple full-wave rectifier circuit is designed by four rectifier diodes (D1, D2, D3, D4)1N5399 with small power consumption, and a fast turn-off diode (D5)1N4188 and a small-capacity (C1)10 μ f filter capacitor are added.
In order to further optimize the implementation effect of the present invention, in other embodiments, the rest of the feature technologies are the same, except that the energy storage circuit includes: graphene supercapacitors (C2).
By adopting the preferable scheme, the graphene super capacitor is selected to store electric energy, and the simple circuit is used for simulating the collection and storage of current. The graphene is used as an electrode material of the supercapacitor, has a relatively stable internal structure, and is an optimal material for adhering to a double-layer energy storage principle of the supercapacitor. However, in practical application, graphene agglomeration phenomenon can occur due to strong intermolecular van der waals force, so that with reference to a novel preparation method of the nitrogen-doped graphene electrode material, natural crystalline flake graphite is used as a raw material, melamine is used as a functionalizing agent and a nitrogen doping agent, and instantaneous high heat generated by microwaves is utilized to dope nitrogen atoms in the melamine into a graphite sheet lattice structure, so as to synthesize the nitrogen-doped graphene supercapacitor electrode material.
In order to further optimize the performance of the present invention, in other embodiments, the rest of the features are the same, except that the metal foil and the ceramic piezoelectric sheet are bonded.
By adopting the preferable scheme, the connection effect is good.
In order to further optimize the performance of the present invention, in other embodiments, the rest of the features are the same, except that the housing 1 is a cylinder.
By adopting the preferable scheme, the appearance is beautiful.
In order to further optimize the implementation effect of the present invention, in other embodiments, the rest of the feature technologies are the same, except that the portion of the casing 1 near the first open end 11 is the film portion 13, and the outer diameter of the film portion 13 gradually decreases from the second open end 12 to the first open end 11; the outer surface of the film sticking part 13 is also stuck with a PVDF film 2, and the PVDF film 2 is electrically connected with an energy storage circuit after being led out by a lead wire for an electrode.
With the above preferred scheme, the conversion efficiency of the internal piezoelectric ceramic is also affected because the direction in which the sound source appears is random. However, the PVDF film 2 is also a functional material with high piezoelectricity, and can be made very thin, and the randomness of the external vibration direction can be coped with by attaching the material to the bottle-shaped housing and the first opening end 11, and the stress source of the PVDF film is greatly increased. Fig. 4 is a simplified schematic of the PVDF film 2 and electrodes of the device. The selected piezoelectric film is extremely durable and can withstand millions of times of bending and vibration in the power generation process.
In order to further optimize the effect of the present invention, in other embodiments, the rest of the features are the same, except that the mesh size of the metal net 3 is gradually increased from the middle portion to the periphery.
By adopting the preferable scheme, the vibration effect is better.
The utility model has the advantages as follows:
(1) the appearance is novel, and the shell is bottle-shaped mechanism, pastes 13 pad pasting parts and pastes PVDF film 2, reduces the restriction of inner structure to PVDF power generation area. The power generation device is characterized in that the power generation device adopts an inward concave structure to facilitate the collection of sound waves, the two layers are connected in a horn shape, the horn shape has better guidance performance, and the horn structure and the external structure form an inner cavity so as to protect the internal circuit.
(2) In the aspect of materials, the piezoelectric film and the piezoelectric ceramic material are adopted, when sound waves collide with the piezoelectric material, resonance is generated to enable the piezoelectric material to be pressed, and power is generated through the positive piezoelectric effect of the piezoelectric material.
(3) The device converts high-frequency sound in life into electric energy in a power generation mode, so that the device is inexhaustible and inexhaustible, and the device organically combines sound pressure and vibration to form a power generation system mainly comprising sound pressure and secondarily comprising vibration.
(4) Regional wide, this utility model has broken the restriction in region, is not just restricted to enclosure spaces such as cabin. The project can also be applied to large public places (including movie theaters, stations and the like), roadside, near airports and the like.
With regard to the preferred embodiments of the present invention, it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept, and these are within the scope of the present invention.
Claims (10)
1. A bottle-shaped sound-electricity conversion power generation device is characterized by comprising:
the energy-saving device comprises a shell, a power supply and a control circuit, wherein the shell is a hollow cylinder with openings at two opposite ends, the two opposite ends are respectively a first opening end and a second opening end, and a rectification circuit and an energy storage circuit are arranged in a cavity of the shell;
the PVDF film is arranged at the first opening end, the middle part of the PVDF film is sunken towards the position of the second opening end, and the PVDF film is electrically connected with the energy storage circuit after being led out by a lead for an electrode;
the metal net is arranged at the second opening end, the middle part of the metal net is provided with a groove towards the position of the first opening end, and one, two or more piezoelectric components are arranged on the metal net;
a piezoelectric assembly, comprising: the piezoelectric film comprises a metal foil and piezoelectric ceramic pieces arranged on two sides of the metal foil, wherein the metal foil in the piezoelectric assembly is electrically connected with a PVDF energy storage circuit through a rectifying circuit.
2. The bottle-shaped acoustic-electric conversion power generation device according to claim 1, wherein the aperture of the housing cavity gradually increases from the first open end to the second open end.
3. The acoustic-electrical conversion power generation apparatus of claim 2, wherein the wall thickness of the first open end of the housing is greater than the wall thickness of the second open end of the housing.
4. The acoustic-electrical conversion power generation apparatus of claim 2, wherein the wall thickness of the first open end of the housing is substantially the same as the wall thickness of the second open end of the housing.
5. The bottle-shaped acoustic-electric conversion power generation device according to claim 1, wherein the rectification circuit comprises: four rectifier diodes, a fast turn-off diode and a filter capacitor.
6. The bottle-shaped acoustic-electric conversion power generation device according to claim 1, wherein the energy storage circuit comprises: graphite alkene ultracapacitor system.
7. The bottle-shaped acoustic-electric conversion power generation device according to claim 1, wherein the metal foil and the ceramic piezoelectric sheet are bonded.
8. The bottle-shaped acoustic-electric conversion power generation device according to claim 1, wherein the housing is cylindrical.
9. The bottle-shaped sound-electricity conversion power generation device according to any one of claims 1 to 8, wherein a portion of the housing near the first open end is a film-coated portion, and an outer diameter of the film-coated portion gradually decreases from the second open end to the first open end; and a PVDF film is also adhered to the outer surface of the film adhering part.
10. The bottle-shaped acoustic-electric conversion power generation device according to any one of claims 1 to 8, wherein the mesh size of the metal mesh gradually increases from the middle portion to the periphery.
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| CN110768579A (en) * | 2019-11-29 | 2020-02-07 | 南通理工学院 | Bottle-shaped sound-electricity conversion power generation device |
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| CN110768579A (en) * | 2019-11-29 | 2020-02-07 | 南通理工学院 | Bottle-shaped sound-electricity conversion power generation device |
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