CN115566926B - Mixed friction nano generator - Google Patents
Mixed friction nano generator Download PDFInfo
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- CN115566926B CN115566926B CN202211560284.0A CN202211560284A CN115566926B CN 115566926 B CN115566926 B CN 115566926B CN 202211560284 A CN202211560284 A CN 202211560284A CN 115566926 B CN115566926 B CN 115566926B
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
- H02K44/08—Magnetohydrodynamic [MHD] generators
- H02K44/12—Constructional details of fluid channels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
- H02K44/28—Association of MHD generators with conventional generators
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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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Abstract
The application belongs to the technical field of the ocean, concretely relates to mixed friction nanometer generator includes: a friction nano-generator module and an electromagnetic generator module; the friction nanogenerator module includes: a substrate, an electrode layer, a friction layer, and a liquid; the liquid can flow in the friction layer, and the liquid flows in the friction layer to generate a potential difference between the electrode layers, so that electric charges are driven to flow between the electrode layers to generate current; the electromagnetic generator module is coupled with the friction nanogenerator module and is coaxially arranged with the friction nanogenerator module. The hybrid friction nano generator disclosed by the application can realize omnidirectional isotropic energy capture.
Description
Technical Field
The application belongs to the technical field of the ocean, in particular to a mixed friction nanometer generator.
Background
With the rapid growth of the world population and depletion of traditional energy resources, the global energy crisis is becoming more and more severe. The ocean, which accounts for 71% of the earth's surface area, has a tremendous amount of ocean energy, which has become one of the important sources for the development of clean and renewable energy sources, ocean wave energy being one of its main forms of energy. However, wave energy capture presents a number of challenges. Traditionally, wave energy capture technologies have relied primarily on electromagnetic generators (EMG), but due to their bulkiness, high construction costs and complex mechanical design, they are primarily applied to offshore installations and offshore power plants and are therefore not suitable for next generation underwater internet of things and future self-powered ocean sensors and electronics.
In recent years, triboelectric nanogenerators (TENG) are being developed to convert various forms of environmental mechanical energy into electrical energy due to their advantages of high power density and high energy conversion efficiency at low frequencies, and the capture of wave energy is one of their typical application scenarios. The existing device can capture wave energy and convert the wave energy into electric energy so as to realize the utilization of the wave energy.
Due to unpredictability of wave changes in a real marine environment, an ideal wave energy capture device has the characteristics of durability, sensitivity to low-frequency and low-amplitude wave reactions and the like, and can be applied to capturing wave energy in any direction (omni-directional property) without difference so as to be practically applied to a natural marine environment. One strategy is to capture wave energy in any direction by designing a spherical or arc-shaped structure TENG, adopt a small ball as a rolling medium, and utilize the high rolling freedom of the small ball to realize the response to waves in different directions, but because the ball rolls into point contact, the contact area is small, the output performance is greatly reduced, and the defects of poor output performance in some directions still exist, the omnidirectional isotropic energy capture is difficult to be really realized, and the energy capture efficiency is greatly reduced. Therefore, how to achieve omnidirectional and isotropic energy capture and improve the output performance is the key point to be solved today.
Disclosure of Invention
The application aims at overcoming the defects existing in the prior art, and adopts the following technical scheme:
the application provides a mixed friction nano-generator, includes: a friction nano-generator module and an electromagnetic generator module;
the friction nanogenerator module includes: a substrate, an electrode layer, a friction layer, and a liquid;
the electrode layer includes: the circular electrode is arranged on the bottom surface of the substrate, and the annular electrode is arranged on the outer ring of the substrate and is concentric with the circular electrode;
the friction layer is arranged on the electrode layer, and liquid is arranged in the friction layer;
the liquid can flow in the friction layer, and the liquid flows in the friction layer to generate a potential difference between the electrode layers, so that electric charges are driven to flow between the electrode layers to generate current;
the electromagnetic generator module is coupled with the friction nanogenerator module and is coaxially arranged with the friction nanogenerator module.
In some embodiments, the substrate is a symmetric concave disc-shaped structure, the inner bottom surface of the substrate is a circular plane, and the included angle formed between the side surface of the disc of the substrate and the circular plane ranges from 0 ° to 90 °.
In some embodiments, the substrate is a symmetric concave disc-like structure, the inner bottom surface of which is a circular plane, and the angle formed between the side surface of the disc of the substrate and the circular plane is 20 °.
In some embodiments, the liquid is: any one or more of seawater, sodium chloride aqueous solution, tap water, deionized water, river water and pure water.
In some embodiments, the electromagnetic generator module and the friction nanogenerator module are connected by a coaxial connector; the friction nano generator module is arranged at the upper part of the electromagnetic generator module; the weight of the electromagnetic generator module is greater than the weight of the friction nanogenerator module.
In some embodiments, the bottom of the coaxial connector is a circular truncated cone, and a cylinder is arranged in the middle of the circular truncated cone.
In some embodiments, the electromagnetic generator module and the friction nanogenerator module are integrally packaged in the shell.
In some embodiments, the electromagnetic generator module comprises: a coil, a magnetic ball, a hollow ring; the hollow circular ring is distributed with any number of coil pairs at equal intervals, and the coils are connected in sequence in an inner connection mode; the magnetic ball is arranged in the hollow circular ring and can freely roll in the hollow circular ring.
In some embodiments, four coils are equally spaced apart on the hollow ring.
In some embodiments, the coil is a copper coil.
The technical effects of this application: the mixed friction nano generator disclosed by the application can capture true omnidirectional isotropic wave energy through the coupling arrangement of the friction nano generator module and the electromagnetic generator module. And the friction nano generator module is provided with the liquid and the friction layer, so that the problems of abrasion and small contact area of the mainstream solid-solid interface friction nano generator module are solved, the service life of a device is prolonged, the power generation efficiency is higher, and the output is increased.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a hybrid triboelectric nanogenerator according to an embodiment of the application;
FIG. 2 is a schematic cross-sectional view of a layered structure of a triboelectric nanogenerator module according to one embodiment of the application;
FIG. 3 is a schematic diagram of the operating principle of a triboelectric nanogenerator module according to one embodiment of the application;
FIG. 4a is a graph of current in various directions for a triboelectric nanogenerator module tested according to one embodiment of the application;
FIG. 4b is a graph of current flow in various directions for an electromagnetic generator module tested in accordance with one embodiment of the present application;
FIG. 5 is a graph of output voltage versus voltage for a tribo nanogenerator module tested according to one embodiment of the application before and after three months;
FIG. 6 is a graph of charging different electrolytic capacitors for a hybrid tribo nanogenerator according to one embodiment of the application.
Description of reference numerals:
1. a housing; 2. a triboelectric nanogenerator module; 3. an electromagnetic generator module; 35. a coil;
36. a hollow circular ring; 37. a magnetic ball; 4. a connector; 21. a liquid; 22. a friction layer; 23. a ring electrode; 24. a circular electrode; 25. a substrate; 100. hybrid friction nanogenerator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the application and do not constitute a limitation on the application.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather mean "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
Referring to fig. 1 and 2, an embodiment of the present application provides a hybrid friction nanogenerator 100. The hybrid friction nanogenerator 100 includes: a friction nanogenerator module 2 and an electromagnetic generator module 3;
the triboelectric nanogenerator module 2 comprises: substrate 25, electrode layer, friction layer 22, and liquid 21;
the electrode layer includes: a ring electrode 23 and a circular electrode 24, wherein the circular electrode 24 is arranged on the bottom surface of a substrate 25, the ring electrode 23 is arranged on the outer ring of the substrate 25 and is concentric with the circular electrode 24;
the friction layer 22 is arranged on the electrode layer, and the liquid 21 is arranged in the friction layer 22;
the liquid 21 can flow in the friction layer 22, and the liquid flows in the friction layer 22 to generate a potential difference between the electrode layers, so that electric charges are driven to flow between the electrode layers to generate current;
the electromagnetic generator module 3 is coupled with the friction nanogenerator module 2 and is arranged coaxially with the friction nanogenerator module 2.
In some embodiments, the electrode material of the electrode layer in the present embodiment may be pure metal, metal alloy, conductive oxide, organic conductor, etc., or the electrode layer may be directly prepared on the surface of the friction layer 22.
In some embodiments, the material of the rubbing layer 22 in the examples of the present application may be one or more of polytetrafluoroethylene, polydimethylsiloxane, polyimide film, aniline formaldehyde resin film, polyoxymethylene film, ethylcellulose film, polyamide film, melamine formaldehyde film, polyethylene glycol succinate film, cellulose acetate film, polyethylene adipate film, polydiallyl phthalate film, regenerated fiber sponge film, polyurethane elastomer film, styrene propylene copolymer film, styrene butadiene copolymer film, rayon film, polymethyl methacrylate film, polyvinyl alcohol film, polyester film, polyisobutylene film, polyurethane flexible sponge film, polyethylene terephthalate film, polyvinyl butyral film, phenol resin film, chloroprene rubber film, butadiene propylene copolymer film, natural rubber film, polyacrylonitrile film, poly (vinylidene chloride-co-acrylonitrile) film, or polyethylene propylene carbonate film, polystyrene, polymethyl methacrylate, polycarbonate or liquid crystal high molecular polymer, polychloroprene, polyacrylonitrile, polybiphenol carbonate, polyvinyl chloride, polyvinylidene chloride, polyethylene, polypropylene, polyvinyl chloride, and the like. In the specific embodiment of the present application, the material of the friction layer 22 is: polylactic acid (PLA). And the material surface of the friction layer 22 can be etched, coated and the like, which is suitable for different use environments.
In some embodiments, the substrate 25 is a symmetric concave disc-shaped structure, the inner bottom surface of the substrate is a circular plane, and the included angle formed between the side surface of the disc of the substrate 25 and the circular plane ranges from 0 ° to 90 °.
In some embodiments, the substrate 25 is a symmetric concave disc-shaped structure, the inner bottom surface of which is a circular plane, and the included angle formed between the side surface of the disc of the substrate 25 and the circular plane is 20 °.
In some embodiments, the liquid 21 may be: any one or more of seawater, sodium chloride aqueous solution, tap water, deionized water, river water and pure water. The liquid includes, but is not limited to, the types of the above-mentioned liquids, and any liquid satisfying a low conductivity difference and a low viscosity is suitable as the liquid friction material.
In some embodiments, the electromagnetic generator module 3 and the triboelectric nanogenerator module 2 are connected by a coaxial connector 4;
the friction nano generator module 2 is arranged at the upper part of the electromagnetic generator module 3;
the weight of the electromagnetic generator module 3 is greater than the weight of the friction nanogenerator module 2.
In some embodiments, the bottom of the coaxial connector 4 is a circular truncated cone, and a cylinder is arranged in the middle of the circular truncated cone.
In some embodiments, the hybrid friction nanogenerator 100 further comprises a housing 1, wherein the shape of the housing 1 is adapted to the electromagnetic generator module 3 and the friction nanogenerator module 2, and the electromagnetic generator module 3 and the friction nanogenerator module 2 are integrally packaged in the housing 1.
In some embodiments, the electromagnetic generator module 3 comprises: coil 35, magnetic ball 37, hollow ring 36;
the hollow circular ring 36 is distributed with any number of coil pairs at equal intervals, and the coils 35 are connected in sequence in an inner connection mode;
in some embodiments, the hollow ring 36 has four coils 35 equally spaced apart.
The magnetic ball 37 is disposed in the hollow circular ring 36 and can freely roll in the hollow circular ring 36.
In some embodiments, the coil 35 is a copper coil 35.
In the embodiment of the present application, with the goal of realizing omnidirectional and isotropic wave energy capture, two main modules (a frictional nano generator module and an electromagnetic generator module) of a hybrid frictional nano generator (iTEHG) "are structurally designed: the friction nano generator module 2 is designed into a 360-degree highly symmetrical concave disc-shaped structure; the electrode layers are optimally designed, including electrode shapes, spatial arrangement and the like, so that the reduction of output performance in certain directions caused by design problems between the two electrodes is reduced.
In some embodiments, the electromagnetic generator module is designed as a 360 ° "ring" structure. In the embodiment of the application, aiming at reducing the friction loss of the hybrid friction nano generator, the friction nano generator module adopts a solid-liquid contact mode, namely the ocean energy is captured by the contact of liquid and a friction layer, and the solid-solid contact mode is not adopted. The friction nano generator module is coupled with the electromagnetic generator module with the aim of enhancing the output performance of the mixed friction nano generator; optimizing structural parameters of the hybrid friction nano generator, including the depression angle of the depression disc, the type and volume of liquid and the type of a thin film; and the spatial arrangement of the friction nano generator module and the electromagnetic generator module is reasonably planned.
The present application will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not limited to the embodiments, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present disclosure.
Example one
As shown in fig. 1, the hybrid friction nanogenerator 100 mainly comprises a cylindrical shell 1, a friction nanogenerator module 2 and an electromagnetic generator module 3, wherein the friction nanogenerator module 2 and the electromagnetic generator module 3 are connected together by using a coaxial connector 4, so that an i-shaped structure which operates synchronously, is stable and reliable is formed, and the h-shaped structure is integrally packaged in the waterproof cylindrical shell 1 with self-adaptive gravity center. The whole mixed friction nano generator 100 is of a highly symmetrical columnar structure, the friction nano generator module 2 is arranged above the electromagnetic generator module 3, the middle of the mixed friction nano generator module is connected with the coaxial connector 4 in a layered structure, the movement of the electromagnetic generator module and the movement of the electromagnetic generator module are highly synchronous, and meanwhile, the weight of the electromagnetic generator module 3 is much larger than that of the friction nano generator module 2, so that the whole geometric center of gravity of the mixed friction nano generator 100 is positioned at the bottom. The electromagnetic generator module 3 is designed into a highly symmetrical 'circular ring' shape and mainly comprises a copper coil 35, a magnetic ball 37 and a hollow circular ring 36. Four identical copper coils 35 are distributed on the hollow ring 36 at equal intervals, the different name ends of the coils are sequentially connected end to end in an inline mode, and a magnetic ball 37 capable of freely rolling is arranged inside the coils.
The bottom of the coaxial connector 4 is a circular truncated cone, the middle of the coaxial connector is a cylinder made of polylactic acid (PLA) and used for connecting the friction nano generator module 2 and the electromagnetic generator module 3 to form a whole body which moves completely and synchronously.
The base 25 of the friction nanogenerator module 2, the base 25 of the electromagnetic generator module 3, the housing 11, and the coaxial connector 44 may all be 3D printed PLA material.
As shown in fig. 2, the tribo nanogenerator module 2 is designed as a highly symmetric "concave disk shape" consisting essentially of a substrate 25, a ring electrode 23, a circular electrode 24, a tribolayer 22, and deionized water. The base 25 has a concave slope of 20 deg., and the inner bottom surface is a circular flat surface. A360-degree annular electrode 23 is tightly attached along the outer ring of the disc slope, a circular electrode 24 is tightly attached on the circular plane, and the two electrodes form a 360-degree concentric structure. A single piece of Fluorinated Ethylene Propylene (FEP) film is then placed over the electrode pair as a friction layer 22, and a suitable amount of deionized water is injected over the FEP film friction layer.
In the embodiment of the present application, the operation principle of the friction nanogenerator module 2 is shown in fig. 3. First, the liquid 21 and the friction layer FEP film are uncharged. When the two materials are in contact (state (i)), there is no current flow in the external circuit because there is no potential difference between the electrode pairs due to the triboelectric effect which generates an equal amount of electrostatic charge with opposite polarity. Under external excitation, the liquid 21 flows to the ring electrode 23, creating a potential difference between the two electrodes, causing electrons to flow along an external circuit from the circular electrode 24 to the ring electrode 23, thereby creating a reverse current. When the liquid 21 covers the ring electrode 23 (state (ii)), the electrostatic equilibrium state is established again. During the transition from state (ii) to (iii), the electrostatic equilibrium is broken. The potential difference drives electrons to flow from the ring electrode 23 to the circular electrode 24, thereby generating a current in an external circuit that flows from the circular electrode 24 to the ring electrode 23. During the transition from state (iii) to (iv), current flows from the ring electrode 23 to the circular electrode 24.
The output characteristic of the friction nanometer generator module 2 is that it can produce large voltage, small current, in order to improve the output current, couple an electromagnetic generator module 3;
under the excitation of waves, the heavy electromagnetic generator module at the bottom of the hybrid friction nano generator generates large shaking amplitude by the large inertia generated by shaking of the friction nano generator module which synchronously runs; and optimizing the structural parameters of the friction nano generator module, including the angle of the concave disc, the type of the negative friction material, the type of liquid and the volume. The influence of four different depression angles of 0 degrees, 10 degrees, 20 degrees and 30 degrees on the output performance is tested; comparing a polytetrafluoroethylene film, an FEP film and a nylon film, and testing the influence of seawater, a sodium chloride aqueous solution, tap water, deionized water, river water and pure water on the output performance; the influence of 10 mL, 20 mL, 30 mL and 40 mL of deionized water on the output performance is tested, the disc depression angle is finally determined to be 20 degrees, and the best output performance is obtained by adopting 20 mL of deionized water as the positive-polarity friction material. The volume of the liquid is determined by the size of the device, and is increased when the device is enlarged, and is decreased when the device is reduced.
In order to increase the contact area and improve the output performance, the friction nano generator module adopts a solid-liquid mode to replace the traditional ball-solid mode, so that the problem of small contact surface caused by ball-solid point contact is avoided, and the liquid flow has high freedom.
Fig. 4a and 4b show that the output performance difference of the friction nano generator module and the electromagnetic generator module in each direction is small, and the relative standard deviation of the average output current is calculated to be maintained within 10%, which shows that the mixed friction nano generator has good omnidirectional isotropy capability of capturing wave energy.
The friction nano generator module adopts a solid-liquid mode, friction between the friction nano generator module and the surface of a solid can be ignored in the liquid flowing process, meanwhile, contact between a magnetic ball in the electromagnetic generator module and the inner wall of the circular ring is point contact, friction loss is small, the electromagnetic generator module is based on the electromagnetic induction principle, is fundamentally different from the friction nano generator module which is greatly influenced by the friction loss and is based on electrostatic induction, the influence of the friction loss is small, and therefore the friction loss of the electromagnetic generator module can be ignored. Therefore, in general, the output performance of the hybrid friction nanogenerator is less affected by friction loss. As shown in FIG. 5, through tests, the attenuation of the output performance of the friction nano generator module is within 8% before and after three months, the performance is excellent, and a new idea is provided for the energy supply of future ocean sensors.
In order to verify the energy charging efficiency and the output capability of the hybrid friction nano generator in the actual marine environment, capacitor charging and mooring sea test experiments are carried out.
The electrical energy generated by the hybrid tribo nanogenerator can be stored in a capacitive element, such as that shown in figure 6, where a 1880 μ F capacitor can be charged to 4.25V, where the energy stored is 16.98 mJ. Moreover, the output capability of the hybrid friction nano generator in the actual marine environment is also verified: in the third gulf of third China, mooring sea test experiments were successfully carried out, and 320 high-brightness LEDs were lighted.
The mixed friction nano generator disclosed by the embodiment of the application can capture true omnidirectional isotropic wave energy through the coupling arrangement of the friction nano generator module and the electromagnetic generator module, and the output performance is excellent. And the friction nano generator module is provided with the liquid and the friction layer, so that the problems of abrasion and small contact area of the mainstream solid-solid interface friction nano generator module can be solved, the service life of a device is prolonged, the power generation efficiency is higher, and the output is increased. Compared with other solid-liquid interface friction nano generator modules, the liquid can flow along the inclined plane under the action of self gravity by increasing the concave angle of the disc, so that the controllability of the liquid is enhanced, the regularity of output waveforms is enhanced, and the output is further improved. The relative standard deviation of the output of the mixed friction nano generator in different directions is less than 10%, the performance is excellent, and a new idea is provided for the energy supply of future ocean sensors.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
In the description of the present application, it should be understood that the symbols of the parameters, variables, program names, etc. mentioned in the embodiments of the present application may be replaced with any other symbols that do not obscure the description.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
The above-mentioned specific embodiments of the present application do not limit the scope of the present application. Any other corresponding changes and modifications made according to the technical idea of the present application should be included in the protection scope of the claims of the present application.
Claims (9)
1. A hybrid triboelectric nanogenerator, comprising: a friction nano-generator module and an electromagnetic generator module;
the friction nanogenerator module includes: a substrate, an electrode layer, a friction layer, and a liquid;
the electrode layer includes: the circular electrode is arranged on the bottom surface of the substrate, and the annular electrode is arranged on the outer ring of the substrate and is concentric with the circular electrode;
the friction layer is arranged on the electrode layer, and liquid is arranged in the friction layer;
the liquid can flow in the friction layer, and the liquid flows in the friction layer to generate a potential difference between the electrode layers, so that electric charges are driven to flow between the electrode layers to generate current;
the electromagnetic generator module is coupled with the friction nano generator module and is coaxially arranged with the friction nano generator module;
the electromagnetic generator module comprises: a coil, a magnetic ball and a hollow ring; the hollow circular ring is distributed with any number of coil pairs at equal intervals, and the coils are connected in sequence in an inner connection mode; the magnetic ball is arranged in the hollow circular ring and can freely roll in the hollow circular ring.
2. The hybrid triboelectric nanogenerator according to claim 1, wherein the substrate is a symmetric concave disc-shaped structure, the inner bottom surface of the substrate is a circular plane, and the angle formed between the side surface of the disc of the substrate and the circular plane is in the range of 0 ° to 90 °.
3. The hybrid triboelectric nanogenerator according to claim 2, wherein the substrate is a symmetric concave disc-shaped structure, the inner bottom surface of the substrate is a circular plane, and the angle formed between the side surface of the disc of the substrate and the circular plane is 20 °.
4. A hybrid triboelectric nanogenerator according to claim 1, wherein the liquid is: any one or more of seawater, sodium chloride aqueous solution, tap water, deionized water, river water and pure water.
5. The hybrid triboelectric nanogenerator of claim 1, wherein the electromagnetic generator module and the triboelectric nanogenerator module are connected by a coaxial connector; the friction nano generator module is arranged at the upper part of the electromagnetic generator module; the weight of the electromagnetic generator module is greater than the weight of the friction nanogenerator module.
6. The hybrid friction nanogenerator of claim 5, wherein the bottom of the coaxial connector is a circular truncated cone, and a cylinder is arranged in the middle of the circular truncated cone.
7. The hybrid triboelectric nanogenerator of claim 1, further comprising a housing shaped to conform to the electromagnetic generator module and the triboelectric nanogenerator module and integrally enclosing the electromagnetic generator module and the triboelectric nanogenerator module within the housing.
8. The hybrid triboelectric nanogenerator according to claim 1, wherein the hollow ring has four coils equally spaced.
9. The hybrid triboelectric nanogenerator according to claim 1, wherein the coil is a copper coil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211560284.0A CN115566926B (en) | 2022-12-07 | 2022-12-07 | Mixed friction nano generator |
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