CN114221574B - Single pendulum type friction nano generator for collecting wave energy - Google Patents
Single pendulum type friction nano generator for collecting wave energy Download PDFInfo
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- CN114221574B CN114221574B CN202210030108.XA CN202210030108A CN114221574B CN 114221574 B CN114221574 B CN 114221574B CN 202210030108 A CN202210030108 A CN 202210030108A CN 114221574 B CN114221574 B CN 114221574B
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- 238000010248 power generation Methods 0.000 claims abstract description 48
- 238000007667 floating Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000003306 harvesting Methods 0.000 claims 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 11
- 230000005284 excitation Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/20—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" wherein both members, i.e. wom and rem are movable relative to the sea bed or shore
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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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a single pendulum type friction nano generator for collecting wave energy, which comprises a shell floating on the water surface, and a swinging friction power generation assembly and a fixed friction power generation assembly which are arranged in the shell, wherein the swinging friction power generation assembly comprises a swinging rod and swinging friction units which are axially distributed and connected on the swinging rod, and the fixed friction power generation assembly comprises fixed friction units which form a power generation group with the swinging friction units; the friction surfaces of the swinging friction unit and the fixed friction unit are arc surfaces, and the circle centers of the arc surfaces in the same power generation group are coincident with each other and the swinging center of the swinging rod; according to the invention, the friction surfaces of the swinging friction unit and the fixed friction unit are arc surfaces, the circle centers of the arc surfaces are overlapped and overlapped with the swinging center of the swinging rod, so that the swinging friction unit and the fixed friction unit are always in a large-area contact state, the friction area can be increased, the generating capacity of single swinging is further improved, and the generating efficiency is improved.
Description
Technical Field
The invention relates to the technical field of energy collection, in particular to a single pendulum type friction nano generator for collecting wave energy.
Background
Wave energy is considered an important renewable and clean energy source, but is rarely developed due to the fact that it is currently mainly dependent on electromagnetic power generation, coupled with the limitations of various technologies, in particular its operation in irregular environments and at low frequencies (< 5 Hz). In general, the existing method only uses wave energy to push electromagnetic power generation to rotate to generate relative motion of a rotor and a stator so as to generate power, and the power generation efficiency is low.
At present, a friction nano generator (TENG) technology can be used for obtaining energy from low-frequency water waves, and in the prior art, a means for generating power by partially utilizing nano friction is also available, for example, chinese patent application publication No. CN111628673a discloses a multi-point nano friction generating unit and device. The mass bodies are respectively inserted into the box body spaces divided by the partition plates and can freely slide, and meanwhile, the nano friction film is arranged at the friction parts of the box body and the mass bodies. According to the scheme, the vertical motion of waves can be utilized, so that relative motion is generated between the box body and the mass body, the friction kinetic energy between nanometer materials is converted into electric energy, and the electric energy is stored by the electric energy storage device or directly transmitted to the electric appliance. However, this scheme structure is comparatively complicated, and the cost is higher, and the area of contact of friction face is limited, leads to generating efficiency lower.
Since the wave frequency in the ocean is very low, sometimes only 0.01HZ, and the wave energy has unstable properties, it is very difficult to collect this energy. The generator is operated in a very dependent manner on the frequency of the wave energy captured, so that in normal circumstances the average output power of the generator is low. In the prior art, there is also a technology of obtaining wave energy by using a swinging manner, for example, chinese patent application publication No. CN 111865133A discloses a swinging friction nano generator and an energy collector, which includes a closed shell and a swinging structure located inside the shell, the swinging structure includes a swinging rod and a free swinging friction layer, when the swinging structure swings inside the shell due to external excitation, the free swinging friction layer of the swinging structure swings along with the swinging structure, and generates electrical output on the electrode layer correspondingly through frictional electrification with the distributed friction layer. The swing process of this scheme mainly relies on single swing friction layer or the swing friction layer of relative setting, and friction area is less when adopting single swing friction layer, and generating efficiency is lower, and when adopting the swing friction layer of relative setting, though increased friction area, this structure is unfavorable for the swing action to form, and generating efficiency is also lower.
Therefore, how to improve the output performance of the existing friction nano generator when collecting ultra-low frequency wave energy is a problem to be solved.
Disclosure of Invention
The invention aims to provide a single pendulum type friction nano generator for collecting wave energy, which solves the problems in the prior art, a generating set is formed by a pendulum friction unit and a fixed friction unit and generates electricity through friction movement between the pendulum friction unit and the fixed friction unit, the friction surface is an arc surface, the circle centers of the arc surfaces in the same generating set are overlapped and overlapped with the swinging center of a swinging rod, the pendulum friction unit and the fixed friction unit can be always in a state of large-area contact, the friction area can be increased, the generated energy of single swinging is further increased, and the generating efficiency is improved.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a single pendulum type friction nano generator for collecting wave energy, which comprises a shell floating on the water surface, and a swinging friction power generation assembly and a fixed friction power generation assembly which are arranged in the shell, wherein the swinging friction power generation assembly comprises a swinging rod and swinging friction units which are axially distributed and connected on the swinging rod, and the fixed friction power generation assembly comprises fixed friction units which form a power generation group with the swinging friction units; the friction surfaces of the swinging friction unit and the fixed friction unit are arc surfaces, and the circle centers of the arc surfaces in the same power generation group are coincident with each other and the swinging center of the swinging rod.
Preferably, a plurality of groups of power generation groups are arranged, in the same power generation group, the outer convex arc surface of the swinging friction unit rubs with the inner concave arc surface of the fixed friction unit, and a first strip-shaped hole is formed in the middle of the fixed friction unit along the swinging direction of the swinging rod.
Preferably, the swinging friction unit comprises a swinging electrode layer and a swinging friction layer which are sequentially arranged from the swinging center to the position far away from the swinging center, and the fixed friction unit comprises a fixed friction layer and a fixed electrode layer which are sequentially arranged from the swinging center to the position far away from the swinging center.
Preferably, the generating set is provided with three sets, a gap exists between the swinging friction layer and the fixed friction layer, the gap is 0.2mm-1mm, and the thicknesses of the swinging electrode layer and the fixed electrode layer are 50nm-1mm.
Preferably, the free end of the swing rod extends out of the shell, and a pendulum is connected to the free end.
Preferably, the casing comprises a base and a cuboid housing arranged on the base, and two ends of the fixed friction unit are respectively connected to two opposite side walls of the cuboid housing in the length direction.
Preferably, a bearing is arranged at the swing center of the swing rod, supporting shafts are arranged on two opposite side walls of the cuboid shell in the width direction, and the bearing is rotatably arranged on the supporting shafts.
Preferably, the base is of a pentagonal plate structure, and a second strip-shaped hole is formed in the middle of the pentagonal plate structure along the swing direction of the swing rod.
Preferably, each side of the pentagonal panel structure is provided with a float.
Preferably, the swing rod and the base are both made of acrylic materials, the swing-following friction layer is made of polyamide materials, and the fixed friction layer is made of polytetrafluoroethylene materials.
Compared with the prior art, the invention has the following technical effects:
(1) According to the invention, the swinging friction unit and the fixed friction unit form a power generation group and generate power through friction movement between the swinging friction unit and the fixed friction unit, the friction surfaces are arc surfaces, and the circle centers of the arc surfaces in the same power generation group are overlapped and overlapped with the swinging center of the swinging rod, so that the swinging friction unit and the fixed friction unit are always in a large-area contact state, the friction area can be increased, the power generation amount of single swinging is further increased, and the power generation efficiency is improved;
(2) According to the invention, the external wave excitation is converted into the swing mechanical energy of the swing friction power generation assembly in the form of single pendulum, and the swing mechanical energy is converted into the electric energy by combining the sliding friction to output, so that the wave energy in the horizontal direction can be collected, the wave energy is not limited to a one-dimensional excitation form, and the high-frequency output can be realized under the low-frequency effect through the arrangement of the swing form, so that most of the external wave excitation is converted into the single pendulum motion mechanical energy, the energy conversion efficiency is greatly improved, and the energy collection efficiency is higher;
(3) According to the invention, the swing friction power generation assembly and the fixed friction power generation assembly are arranged in the shell through the arrangement of the shell, so that the device can adapt to various environments, has high stability and high reliability, can respond to external excitation of a designated angle in the horizontal direction, and has a wide application prospect;
(4) According to the invention, the gap is arranged between the swinging friction layer and the fixed friction layer, so that the friction resistance is reduced, the loss in the swinging process is reduced to the minimum, and meanwhile, the contact area between the swinging friction layer and the fixed friction layers in the swinging process is increased due to the plurality of friction layers, so that the energy collection efficiency under the low-frequency effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the invention with a rear side plate of a rectangular parallelepiped housing removed;
FIG. 2 is a schematic view of another angle structure of FIG. 1;
FIG. 3 is a schematic view of the structure of the present invention with the entire rectangular parallelepiped housing removed;
FIG. 4 is a schematic view of a fixed friction unit according to the present invention;
fig. 5 is a schematic view of the internal structures of the pendulum friction unit and the fixed friction unit of the present invention.
Wherein, 1, a cuboid shell; 2. a base; 21. a second bar-shaped hole; 3. a floating body; 4. swing rod; 41. a pendulum; 42. a bearing; 5. a swinging friction unit; 51. a swinging electrode layer; 52. a swinging friction layer; 6. a fixed friction unit; 61. fixing the electrode layer; 62. fixing the friction layer; 63. a first bar-shaped hole; 7. and a support shaft.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a single pendulum type friction nano generator for collecting wave energy, which solves the problems in the prior art, a generating set is formed by a pendulum following friction unit and a fixed friction unit and generates electricity through friction movement between the two friction units, the friction surfaces are arc surfaces, the circle centers of the arc surfaces in the same generating set are overlapped and overlapped with the swinging center of a swinging rod, the pendulum following friction unit and the fixed friction unit can be always in a state of large-area contact, the friction area can be increased, the generated energy of single swinging is further increased, and the electricity generating efficiency is improved.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1 to 5, the invention provides a single pendulum type friction nano generator for collecting wave energy, which comprises a shell floating on the water surface, and a swing friction power generation assembly and a fixed friction power generation assembly which are arranged in the shell, wherein the shell can protect the swing friction power generation assembly and the fixed friction power generation assembly from the damage of external environment, and can provide a certain buoyancy force at the same time, so that the whole device floats on the water surface, the shell can be made of a light material or is connected with a plurality of floating bodies 3 to provide buoyancy force, and the swing direction of the swing friction power generation assembly in the shell has a corresponding swing space. The swing friction power generation assembly and the fixed friction power generation assembly can be rubbed relatively, electric energy is obtained through the arranged nano friction material, and the electric energy is connected to the electric energy storage unit or supplied to electric equipment. Specifically, the swing friction power generation assembly comprises a swing rod 4 and swing following friction units 5 which are axially distributed and connected to the swing rod 4, the swing following friction units 5 can swing along with the swing of the swing rod 4, the swing following friction units 5 are equivalent to pendulum weights 41 of the swing rod 4, and the end parts of the swing rod 4 can be connected with independent pendulum weights 41. The fixed friction power generation assembly comprises a fixed friction unit 6 forming a power generation group with the swinging friction unit 5, and the fixed friction unit 6 can be fixedly arranged on the shell for fixing the relative position; in fact, when the housing moves under the impact of waves, the housing also moves relative to the swing rod 4 and the swing-following friction unit 5 connected with the swing rod, so that the friction efficiency is improved. The friction surfaces of the swinging friction unit 5 and the fixed friction unit 6 are arc surfaces, and when the swinging friction unit is specifically arranged, the outer convex arc surface of the swinging friction unit 5 and the inner concave arc surface of the fixed friction unit 6 can be rubbed, and at the moment, the swinging friction unit 5 can be considered to be positioned at the upper part (vertical swinging) of the fixed friction unit 6; the concave circular arc surface of the pendulum friction unit 5 may be rubbed against the convex circular arc surface of the fixed friction unit 6, and at this time, the pendulum friction unit 5 may be considered to be located at the lower part (vertically swinging) of the fixed friction unit 6. Whichever friction setting mode is adopted, the circle centers of the arc surfaces in the same generating set are overlapped and overlapped with the swing center of the swing rod 4; the swinging friction unit 5 and the fixed friction unit 6 are always in a large-area contact state, the friction area can be increased, the single swinging power generation capacity is further increased, and the power generation efficiency is improved. According to the invention, the external wave excitation is converted into the swing mechanical energy of the swing friction power generation assembly in the form of a single pendulum, and the swing mechanical energy is converted into the electric energy by combining the sliding friction to output, so that the wave energy in the horizontal direction can be collected, the wave energy is not limited to a one-dimensional excitation form, and the high-frequency output can be realized under the low-frequency effect through the arrangement of the swing form, so that most of the external wave excitation is converted into the single pendulum motion mechanical energy, the energy conversion efficiency is greatly improved, and the energy collection efficiency is higher.
A plurality of groups of generating sets can be arranged in the shell, further, in the same generating set, the outer convex arc surface of the follow-up pendulum friction unit 5 and the inner concave arc surface of the fixed friction unit 6 can be arranged to rub, that is, according to the arrangement mode that the swinging center of the swinging rod 4 is located at the upper part of the swinging rod 4, at the moment, the follow-up pendulum friction unit 5 is located at the upper part of the fixed friction unit 6, and even if the follow-up pendulum friction unit 5 is possibly stressed unstably or slides in a direction far away from the swinging center in the swinging process, the good friction effect with the fixed friction unit 6 can be maintained. As shown in fig. 4, a first bar-shaped hole 63 is formed in the middle of the fixed friction unit 6 along the swinging direction of the swinging rod 4, so that the swinging rod 4 cannot be interfered and limited by the fixed friction unit 6 in the swinging process, and can swing freely, and the swinging friction effect is ensured.
As shown in fig. 5, the wobble friction unit 5 includes a wobble electrode layer 51 and a wobble friction layer 52 which are sequentially disposed from the center of oscillation to the distance from the center of oscillation, and the fixed friction unit 6 includes a fixed friction layer 62 and a fixed electrode layer 61 which are sequentially disposed from the center of oscillation to the distance from the center of oscillation. Along with the swinging of the swinging rod 4, the swinging friction layer 52 swings along with the swinging, and through the friction electrification with the fixed friction layer 62, in the swinging process of the swinging friction layer 52, the electric output is correspondingly generated on the swinging electrode layer 51 and the fixed electrode layer 61.
As shown in fig. 1 to 3, the power generation set may be provided with three sets, that is, includes three swinging friction layers 52 and fixed friction layers 62, which increases the friction area between the swinging friction layers 52 and the plurality of fixed friction layers 62 during swinging, and helps to improve the energy collection efficiency under the low frequency action. A gap of 0.2mm-1mm exists between the wobble friction layer 52 and the fixed friction layer 62, and friction resistance is reduced and loss during wobble is minimized by providing the gap. The thickness of the follow-up swing electrode layer 51 and the fixed electrode layer 61 is 50nm-1mm, and the follow-up swing electrode layer is matched with the electric energy generated in the swing process, so that the output efficiency is ensured.
As shown in fig. 2 to 3, the free end of the oscillating bar 4 may be located inside the housing, so that the whole housing is a totally enclosed structure, which is beneficial for the overall tightness of the device. The free end of the swing rod 4 can also extend out of the shell, and the free end is connected with the pendulum 41, at this moment, the pendulum 41 is located outside the shell, in general, the swing rod 4 is in a vertical swing mode, namely, the pendulum 41 is located at the lower part of the swing rod 4, the swing center is located at the upper part of the swing rod 4, and because the pendulum 41 has a certain mass, the vertical stability of the whole device can be assisted, and the tilting of the device is prevented from influencing the swing power generation process.
As shown in fig. 1 to 2, the housing includes a base 2 and a rectangular parallelepiped housing 1 provided on the base 2, wherein the rectangular parallelepiped housing 1 may be an integral rectangular parallelepiped structure including a top surface, side surfaces and a bottom surface, or may be a non-bottom surface rectangular parallelepiped structure including only the top surface and the side surfaces, and the base 2 is used as the bottom surface thereof. The cuboid shell 1 has length direction that length is longer relatively and length direction that length is narrower relatively, and wherein, the both ends of fixed friction unit 6 are connected respectively on the opposite both sides wall in cuboid shell 1 length direction, and at this moment, under the same cuboid shell 1 condition, for installing in width direction, can increase the length of fixed friction unit 6, and then, can improve along with pendulum friction unit 5 and fixed friction unit 6's friction area, and then improve the generating efficiency of single swing process.
As shown in fig. 2 to 3, a bearing 42 may be disposed at the swing center of the swing rod 4, the bearing 42 may be connected to the end of the swing rod 4 by welding or the like, the swing rod 4 may swing around the bearing 42, two opposite side walls of the rectangular parallelepiped housing 1 in the width direction are provided with supporting shafts 7, the bearing 42 is rotatably disposed on the supporting shafts 7, at this time, the swing rod 4 may swing around the supporting shafts 7, that is, the swing rod 4 drives the swing-following friction unit 5 to swing along the length direction of the rectangular parallelepiped housing 1.
As shown in fig. 1 to 2, the base 2 may be a pentagonal plate structure, the middle part of the pentagonal plate structure is provided with a second bar-shaped hole 21 along the swinging direction of the swinging rod 4, and the free end of the swinging rod 4 extends to the position below the water surface through the second bar-shaped hole 21, so that the stability of the whole device is beneficial while swinging. The pentagonal plate-shaped base 2 can save more materials than a circular structure, and can be provided with one more floating body 3 than a quadrilateral, so that the buoyancy can be increased under the same condition.
As shown in fig. 1 to 3, the floating body 3 can be made of foam materials into a cylindrical shape, each side of the pentagonal plate-shaped structure is provided with the floating body 3, and the circle center of the cylindrical shape and the base 2 are positioned on the same horizontal plane, so that the floating body is more stable. The material of the base 2 is acrylic or a floating body material, wherein the floating body material is not limited to foam, and can be other light materials with certain strength.
The swing rod 4 can be made of acrylic materials. The wobble friction layer 52 may be made of a material such as polyamide which is liable to lose electrons, and the fixed friction layer 62 may be made of a material such as polytetrafluoroethylene which is liable to gain electrons.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (6)
1. A simple pendulum type friction nano generator for collecting wave energy is characterized in that: the swing friction power generation assembly comprises a swing rod and swing following friction units which are axially distributed and connected to the swing rod, and the fixed friction power generation assembly comprises fixed friction units which form a power generation group with the swing following friction units; the friction surfaces of the swinging friction unit and the fixed friction unit are arc surfaces, the swinging friction unit and the fixed friction unit form a power generation group, and the circle centers of the arc surfaces in the same power generation group are overlapped and overlapped with the swinging center of the swinging rod; the device comprises a fixed friction unit, a swinging rod, a plurality of groups of power generation groups, a first strip-shaped hole and a second strip-shaped hole, wherein the plurality of groups of power generation groups are arranged, in the same power generation group, the outer convex arc surface of the swinging friction unit rubs with the inner concave arc surface of the fixed friction unit, and the middle part of the fixed friction unit is provided with a first strip-shaped hole along the swinging direction of the swinging rod; the swinging friction unit comprises a swinging electrode layer and a swinging friction layer which are sequentially arranged from the swinging center to the position far away from the swinging center, and the fixed friction unit comprises a fixed friction layer and a fixed electrode layer which are sequentially arranged from the swinging center to the position far away from the swinging center; the power generation set is provided with three groups, a gap is formed between the swinging friction layer and the fixed friction layer, the gap is 0.2mm-1mm, and the thicknesses of the swinging electrode layer and the fixed electrode layer are 50nm-1mm; the free end of the swing rod extends out of the shell, and the free end is connected with a pendulum bob.
2. The wave energy harvesting single pendulum friction nano generator of claim 1, wherein: the shell comprises a base and a cuboid shell arranged on the base, and two ends of the fixed friction unit are respectively connected to two opposite side walls of the cuboid shell in the length direction.
3. The wave energy harvesting single pendulum friction nano generator of claim 2, wherein: the swing center of the swing rod is provided with a bearing, two opposite side walls of the cuboid shell in the width direction are provided with supporting shafts, and the bearing is rotatably arranged on the supporting shafts.
4. A single pendulum friction nano generator for collecting wave energy according to claim 3, wherein: the base is of a pentagonal plate structure, and a second strip-shaped hole is formed in the middle of the pentagonal plate structure along the swing direction of the swing rod.
5. The wave energy harvesting single pendulum friction nano generator of claim 4, wherein: each side of the pentagonal plate-shaped structure is provided with a floating body.
6. The wave energy harvesting single pendulum friction nano generator of claim 5, wherein: the swing rod and the base are both made of acrylic materials, the swing-following friction layer is made of polyamide materials, and the fixed friction layer is made of polytetrafluoroethylene materials.
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| CN202210030108.XA CN114221574B (en) | 2022-01-12 | 2022-01-12 | Single pendulum type friction nano generator for collecting wave energy |
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| CN202210030108.XA CN114221574B (en) | 2022-01-12 | 2022-01-12 | Single pendulum type friction nano generator for collecting wave energy |
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| CN114221574B true CN114221574B (en) | 2024-04-12 |
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| 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 |
| CN112217412A (en) * | 2019-07-09 | 2021-01-12 | 北京纳米能源与系统研究所 | Pendulum type friction nano generator and energy collector |
| CN214998014U (en) * | 2021-04-30 | 2021-12-03 | 齐鲁工业大学 | Round platform-shaped swinging wind power generation device based on nanometer friction power generation |
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