CN112821707A - Friction nanometer and electromagnetic power generation composite wave energy conversion device - Google Patents
Friction nanometer and electromagnetic power generation composite wave energy conversion device Download PDFInfo
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- CN112821707A CN112821707A CN202110002202.XA CN202110002202A CN112821707A CN 112821707 A CN112821707 A CN 112821707A CN 202110002202 A CN202110002202 A CN 202110002202A CN 112821707 A CN112821707 A CN 112821707A
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- power generation
- permanent magnet
- metal plate
- wave energy
- oscillating body
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention provides a friction nanometer and electromagnetic power generation composite wave energy conversion device which comprises a central pipe, a permanent magnet assembly, a coil group and an oscillating body. The permanent magnet assemblies are arranged at two ends of the central tube, the power generation magnetic induction coil assemblies are respectively arranged at annular grooves of two base plates of the central tube, a metal plate I and a metal plate II are arranged on the inner wall surface of the central tube, and an organic film is deposited on the outer side surface of the oscillating body and is suspended in the central tube due to magnetic repulsion force. The invention skillfully utilizes the friction motion between the metal plate and the organic material and the motion of cutting magnetic induction lines by the coil in the device to convert the low-frequency energy in the waves into electric energy. The invention can effectively work in the ocean all-weather climate environment, effectively utilizes the wave energy with complex frequency, and has simple structure, low maintenance cost and high reliability.
Description
Technical Field
The invention relates to a friction nanometer and electromagnetic power generation composite wave energy conversion device, and belongs to the technical field of ocean wave energy collection.
Background
Energy and environmental problems are the most concerned common focus of all countries in the world today and are the key to realizing sustainable development. The ocean, which covers 71% of the area of the earth's surface, has tremendous energy, however, the development of ocean energy and energy harvesting techniques has been far behind. Fossil energy is the most important energy consumed globally at present, but with continuous exploitation of human beings, exhaustion of the fossil energy is inevitable, and environmental problems caused by consumption of the fossil energy are more and more serious, so that the exhaustion of the fossil energy is an important problem for restricting and endangering development of the human beings. Therefore, the development of cleaner renewable energy sources is the central importance of future development, and has great strategic significance.
The node distribution area of the offshore wireless sensor network is wide in a large range, and how to effectively supply energy to the low-power-consumption small electronic devices for a long time is one of bottleneck problems of the offshore wireless sensor network. Therefore, the wave energy device collects abundant wave energy in the marine environment, converts the abundant wave energy into electric energy, supplies power for low-energy consumption sensor devices, and is a scheme with good prospect for guaranteeing the service life of the wireless sensor. However, the marine climate environment is variable, the wave excitation frequency is low, the output power of the existing small marine wave energy conversion device which only depends on the electromagnetic generator is low, the reliability is low, the environmental adaptability is poor, and particularly, the device cannot normally work under low-frequency waves and cannot meet the requirement of sustainable self-energy supply.
Disclosure of Invention
The invention aims to provide a wave energy conversion device combining friction nanometer and electromagnetic power generation aiming at the defects in the prior art, and aims to meet the requirement of high-efficiency work in the ocean all-weather climate environment, effectively improve the conversion efficiency of ocean low-frequency wave energy and solve the problems of low reliability and low output power of the existing ocean wave energy conversion device.
The purpose of the invention is realized as follows: the center tube is a hollow cylinder with a first substrate structure and a second substrate structure, annular grooves are formed in the first substrate and the second substrate, a first metal plate and a second metal plate are arranged on the inner wall surface of the center tube, the permanent magnet assemblies are arranged at two ends of the center tube, power generation magnetic induction coil assemblies are arranged at the annular grooves of the first substrate and the second substrate of the center tube, the oscillating body is arranged in the center tube, and the oscillating body is suspended inside the center tube due to bidirectional magnetic repulsion force.
The invention also includes such structural features:
1. and the first metal plate and the second metal plate are respectively provided with a hole for connecting with an external circuit, and the material of the first metal plate and the second metal plate is selected from gold, silver, copper or aluminum.
2. The oscillating body is a cylindrical magnet, the surface of the oscillating body is filled with a polydimethylsiloxane porous sponge layer for increasing the contact area, and a polytetrafluoroethylene film is deposited outside the oscillating body through chemical reaction.
3. The first permanent magnet, the second permanent magnet and the oscillating body respectively have magnetic repulsive force, and holes for avoiding the influence caused by air resistance are formed in the middle of the first permanent magnet and the second permanent magnet.
Compared with the prior art, the invention has the beneficial effects that: the invention combines electromagnetic power generation and friction nanometer power generation, more fully utilizes low-frequency energy brought by wave motion, improves conversion efficiency, and can adapt to multi-climate and low-frequency marine environment. The composite wave energy conversion device designed by the invention can realize self-energy supply, replaces or partially replaces the prior storage battery for power supply, and has higher practicability without replacement once being used. The composite wave energy conversion device designed by the invention can be combined with an ocean sensing device, and self-energy supply is realized through electric energy generated by the power generation device, so that an ocean buoy can complete tasks such as illumination, communication and the like. The permanent magnets are symmetrically arranged at a reasonable distance, so that the motion amplitude of the oscillating body is increased, and the electromechanical conversion efficiency of the electromagnet is obviously improved. The wave energy conversion device is easy to arrange in an array mode, so that a plurality of power generation devices work simultaneously, and the conversion efficiency of wave energy is greatly improved. The device has the advantages of modular structure, simple construction process and low construction and maintenance cost, improves the maintainability of the whole device, prolongs the service life and reduces the maintenance cost.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of a permanent magnet arrangement in the present invention;
FIG. 4 is a schematic view of the operation of the oscillating body in the present invention;
FIG. 5 is a schematic view of an induction coil installation of the present invention;
FIG. 6 is an external circuit schematic;
in the figure: the device comprises a first permanent magnet 1, a first base plate 2, a first coil group 3, a central tube 4, an oscillating body 5, a second base plate 6, a second coil group 7, a second permanent magnet 8, a first metal plate 9, a second metal plate 10, a first 11 annular groove, a second 12 annular groove, a third 13 annular groove, a magnetic rod 14, an organic film 15, a first 16 coil, a second 17 coil and a third 18 coil.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in the attached figure 1, the invention provides a wave energy conversion device combining friction nanometer and electromagnetic power generation, which comprises a first permanent magnet 1, a first coil group 3, a central pipe 4, an oscillating body 5, a second coil group 7 and a second permanent magnet 8. The central tube is a hollow cylinder with a first base plate 2 and a second base plate 6, the first base plate 2 and the second base plate 6 are both provided with annular grooves, the inner wall surface of the central tube 4 is provided with a first metal plate 9 and a second metal plate 10, the permanent magnet assemblies are arranged at two ends of the central tube 4, the first power generation magnetic induction coil group 3 and the second power generation magnetic induction coil group 7 are respectively arranged at the annular grooves of the first base plate 2 and the second base plate 6 of the central tube, and the oscillating body 5 is suspended inside the central tube due to bidirectional magnetic repulsion force.
The central tube 4 is a main carrier of the whole power generation device, and comprises a first substrate 2 and a second substrate 6 which are provided with annular grooves, wherein the substrates are used for fixing a plurality of turns of coils with the same size and material, so that the stability and the energy conversion rate of the system are increased. The inner wall surface of the central tube is provided with a first metal plate 9 and a second metal plate 10. The metal plates are each provided with a hole for connection to an external circuit.
As shown in fig. 4, the oscillating body 5 is a cylindrical magnet, the surface of the oscillating body is filled with a polydimethylsiloxane porous sponge layer which increases the contact area, a polytetrafluoroethylene film is deposited outside the oscillating body through a chemical reaction, and electric energy is generated in the friction process. The coil is continuously cut to generate a changing magnetic induction line to drive the electromagnetic power generation assembly to generate power, and the first metal plate 9 and the second metal plate 10 are made of gold, silver, copper or aluminum.
The first permanent magnet 1, the second permanent magnet 7 and the oscillating body 5 respectively have magnetic repulsive force, so that the motion amplitude of the oscillating body 5 is increased, and the stability of reciprocating motion is improved. And the middle parts of the first permanent magnet 1 and the second permanent magnet 7 are provided with holes for avoiding the influence caused by air resistance.
The first substrate 2 and the second substrate 6 are designed to stabilize the coils and to expand the widths of the coil group 3 and the coil group 7 so as to form a more appropriate magnetic field, and the cylindrical shape is selected for convenience of arraying.
In the invention, the wave energy conversion device combining the friction nanometer and the electromagnetic power generation can be applied to an ocean sensing device. In the process of fluctuating movement along with waves, the composite power generation device converts the wave energy into electric energy, and the electric energy is stored in the electric storage device, so that self-power supply is realized, and the service life is prolonged.
The invention provides a wave energy conversion device combining friction nanometer and electromagnetic power generation, which has the advantages of simple structure, high power generation efficiency, good stability and long service life, and can convert wave energy, especially low-frequency wave energy, into electric energy efficiently by the actions of cutting magnetic induction lines by coils and nanometer friction. The wave energy conversion device combining the friction nanometer and the electromagnetic power generation enables self-power supply of ocean equipment to be possible.
Fig. 6 shows an external circuit diagram. The figure comprises a friction nanometer power generation component, an electromagnetic power generation component, a diode, a rechargeable power supply and a load. The external circuit comprises a diode, a chargeable power supply and a load, the chargeable power supply is connected with the load in parallel, the anode of the chargeable power supply is connected with the cathode of the diode, the anode of the diode is respectively connected with the electromagnetic generator and the friction nano generator, and the cathode of the chargeable power supply is respectively connected with the electromagnetic generator and the friction nano generating component. The working principle of the invention is further described in detail with reference to the attached drawings:
the oscillating body 5 in the electromagnetic generating assembly of the present invention is continuously moved, resulting in a continuous change in the magnetic flux inside the tube. The changing magnetic field and the coil group I3 and the coil group II 7 of the electromagnetic generating assembly generate relative movement, and the magnetic induction lines are cut to generate current. When the oscillating body 5 moves upward, the current of the coil set one 3 flows clockwise, the current of the coil set two 7 flows counterclockwise, and vice versa. In the oscillation process of the friction nano power generation assembly, the PTFE membrane on the outer surface of the oscillation body generates friction electrification through friction between the PTFE membrane and the first metal plate and the second metal plate, induction current is generated through electrostatic induction, and wave energy, particularly low-frequency wave energy, is continuously and efficiently converted into electric energy.
The friction nanometer power generation assembly provided by the invention oscillates along with the fluctuation of waves, and in the oscillation process, the PTFE film on the outer surface of the oscillating body 5 is subjected to repeated sliding friction with the first metal plate 9 and the second metal plate 10 to generate friction electrification and further generate charge transfer, so that the electrostatic induction of a nanometer friction component is caused, and then induction current is generated. When the oscillating body 5 is positioned on top of the central tube 4, charge accumulates at the upper electrode. When the oscillating body 5 is pushed to the bottom by the magnetic force, electric charges flow to the lower electrode. The frictional nano-power generation module generates continuous alternating current during repeated oscillation of the oscillating body 5.
The invention provides a wave energy conversion device combining friction nanometer and electromagnetic power generation, which has the advantages of simple structure, high power generation efficiency, good stability and long service life. The wave energy conversion device combining the friction nanometer and the electromagnetic power generation enables self-power supply of ocean equipment to be possible.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
In summary, the invention discloses a wave energy conversion device combining friction nanometer and electromagnetic power generation, which comprises a central pipe, a permanent magnet assembly, a coil group and an oscillating body. The permanent magnet assemblies are arranged at two ends of the central tube, the power generation magnetic induction coil assemblies are respectively arranged at annular grooves of two base plates of the central tube, a metal plate I and a metal plate II are arranged on the inner wall surface of the central tube, and an organic film is deposited on the outer side surface of the oscillating body and is suspended in the central tube due to magnetic repulsion force. The invention skillfully utilizes the friction motion between the metal plate and the organic material and the motion of cutting magnetic induction lines by the coil in the device to convert the low-frequency energy in the waves into electric energy. The invention can effectively work in the ocean all-weather climate environment, effectively utilizes the wave energy with complex frequency, and has simple structure, low maintenance cost and high reliability.
Claims (5)
1. A friction nanometer and electromagnetic power generation composite wave energy conversion device is characterized in that: the center tube is a hollow cylinder with a first substrate structure and a second substrate structure, annular grooves are formed in the first substrate and the second substrate, a first metal plate and a second metal plate are arranged on the inner wall surface of the center tube, the permanent magnet assemblies are arranged at two ends of the center tube, power generation magnetic induction coil assemblies are arranged at the annular grooves of the first substrate and the second substrate of the center tube, the oscillating body is arranged in the center tube, and the oscillating body is suspended inside the center tube due to bidirectional magnetic repulsion force.
2. The friction nanometer and electromagnetic power generation composite wave energy conversion device according to claim 1, wherein: and the first metal plate and the second metal plate are respectively provided with a hole for connecting with an external circuit, and the material of the first metal plate and the second metal plate is selected from gold, silver, copper or aluminum.
3. The composite wave energy conversion device of friction nanometer and electromagnetic power generation according to claim 1 or 2, characterized in that: the oscillating body is a cylindrical magnet, the surface of the oscillating body is filled with a polydimethylsiloxane porous sponge layer for increasing the contact area, and a polytetrafluoroethylene film is deposited outside the oscillating body through chemical reaction.
4. The composite wave energy conversion device of friction nanometer and electromagnetic power generation according to claim 1 or 2, characterized in that: the first permanent magnet, the second permanent magnet and the oscillating body respectively have magnetic repulsive force, and holes for avoiding the influence caused by air resistance are formed in the middle of the first permanent magnet and the second permanent magnet.
5. The friction nanometer and electromagnetic power generation composite wave energy conversion device according to claim 3, wherein: the first permanent magnet, the second permanent magnet and the oscillating body respectively have magnetic repulsive force, and holes for avoiding the influence caused by air resistance are formed in the middle of the first permanent magnet and the second permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110002202.XA CN112821707A (en) | 2021-01-04 | 2021-01-04 | Friction nanometer and electromagnetic power generation composite wave energy conversion device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110002202.XA CN112821707A (en) | 2021-01-04 | 2021-01-04 | Friction nanometer and electromagnetic power generation composite wave energy conversion device |
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| CN112821707A true CN112821707A (en) | 2021-05-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113270933A (en) * | 2021-06-28 | 2021-08-17 | 上海大学 | Triboelectricity-electromagnetism composite energy collecting device based on paper folding structure |
| CN114345234A (en) * | 2022-01-10 | 2022-04-15 | 北京航空航天大学 | Droplet generator based on water hammer effect and working method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682794A (en) * | 2020-06-20 | 2020-09-18 | 上海交通大学 | Non-contact transmission friction-electromagnetic composite wave energy collector suitable for complex excitation |
| CN111865133A (en) * | 2019-04-25 | 2020-10-30 | 北京纳米能源与系统研究所 | Pendulum type friction nano generator and energy collector |
| CN211908680U (en) * | 2020-06-08 | 2020-11-10 | 温州大学 | Hybrid electromagnetic friction nano generator |
-
2021
- 2021-01-04 CN CN202110002202.XA patent/CN112821707A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111865133A (en) * | 2019-04-25 | 2020-10-30 | 北京纳米能源与系统研究所 | Pendulum type friction nano generator and energy collector |
| CN211908680U (en) * | 2020-06-08 | 2020-11-10 | 温州大学 | Hybrid electromagnetic friction nano generator |
| CN111682794A (en) * | 2020-06-20 | 2020-09-18 | 上海交通大学 | Non-contact transmission friction-electromagnetic composite wave energy collector suitable for complex excitation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113270933A (en) * | 2021-06-28 | 2021-08-17 | 上海大学 | Triboelectricity-electromagnetism composite energy collecting device based on paper folding structure |
| CN113270933B (en) * | 2021-06-28 | 2022-09-16 | 上海大学 | Triboelectricity-electromagnetism composite energy collecting device based on paper folding structure |
| CN114345234A (en) * | 2022-01-10 | 2022-04-15 | 北京航空航天大学 | Droplet generator based on water hammer effect and working method thereof |
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Application publication date: 20210518 |