A wave self-regulating bistable electromagnetic-friction power generation device

By combining a self-regulating bistable mechanism with electromagnetic-nano triboelectric power generation, the problem of low energy capture efficiency of wave energy harvesting devices under low-frequency wave conditions is solved, achieving high-efficiency energy conversion and structural simplification, making it suitable for ship hull installation.

CN119696403BActive Publication Date: 2025-10-28HUNAN UNIV

Patent Information

Application Number
CN202411866052.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-10-28
Estimated Expiration
2044-12-18

AI Technical Summary

Technical Problem

Existing wave energy harvesting devices have low energy capture efficiency under low-frequency ocean wave conditions, low mechanical energy to electrical energy conversion efficiency, complex structure and high cost, making them difficult to use directly on ship hulls.

Method used

A wave-adjustable bistable electromagnetic-triboelectric power generation device was designed. It adopts an energy conversion method that combines a self-adjustable bistable mechanism with electromagnetic-nanotriboelectric power generation. The potential barrier is automatically adjusted by the cooperation of the piston assembly and the leaf spring to expand the motion amplitude of the mass block. Energy is transmitted by the nut and screw structure, which combines cutting magnetic field lines and nanotriboelectric power generation.

Benefits of technology

It improves energy capture and conversion efficiency, simplifies device structure, reduces costs, and makes it suitable for direct installation on the hull.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a wave-self-adjusting bistable electromagnetic-triboelectric power generation device, belonging to the field of renewable energy in marine engineering. It includes a main shell, an energy capture mechanism, and an energy conversion mechanism. The main shell comprises a cylindrical shell, a top plate, a partition plate, and a bottom plate. The partition plate divides the main shell into an upper and lower section. The energy capture mechanism is located in the lower section, and the energy conversion mechanism is located in the upper section. The energy capture mechanism and the energy conversion mechanism are rotatably connected. This invention introduces a self-adjusting bistable mechanism, which, through the cooperation of a piston assembly and a leaf spring, can automatically adjust the height of the potential barrier. Even with low wave excitation force, it can achieve well-hole oscillation, amplifying the motion amplitude of the mass block and thus improving energy capture efficiency. Its energy conversion mechanism is designed to combine electromagnetic power generation with nano-triboelectric power generation, improving its energy conversion efficiency, reliability, and stability. The device has a compact structure, is easy to install, and is suitable for direct use on the hull.
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Description

Technical Field

[0001] This invention belongs to the field of renewable energy in marine engineering, and specifically relates to a wave-self-adjusting bistable electromagnetic-triboelectric power generation device. Background Technology

[0002] Wave energy is a largely untapped renewable energy source with enormous potential, boasting advantages such as low environmental impact, large energy reserves, high density, and wide distribution. However, while many researchers have conducted extensive studies on wave energy harvesting technologies, these existing studies cannot be directly applied to shipboard wave energy harvesting due to the following issues:

[0003] 1. Existing energy harvesting devices perform better only at higher excitation amplitudes and frequencies, while ocean waves are mostly low-frequency, resulting in lower energy capture efficiency.

[0004] 2. Existing energy harvesting devices have low efficiency in converting mechanical energy into electrical energy, generally generate electricity in a single form, and have complex transmission structures.

[0005] 3. Existing energy harvesting devices generally have complex overall mechanical structures and high costs, and cannot be directly used in ship hulls.

[0006] Applying nonlinear mechanisms is one method to improve the energy capture efficiency of point-absorption wave energy converters. Among different nonlinear mechanisms, bistable mechanisms have been extensively studied in the field of vibration energy harvesting. A bistable system has two stable equilibrium points and one unstable equilibrium point, forming two potential wells separated by a potential barrier. Under different wave excitations, it will exhibit in-well oscillations and inter-well oscillations. Many researchers have demonstrated that bistable systems capable of overcoming the potential barrier to perform inter-well oscillations have better energy capture efficiency than linear systems. However, the potential barrier of existing bistable systems is fixed, making it difficult to cross the barrier and perform in-well motion when the excitation force is small, resulting in poor power capture efficiency. Summary of the Invention

[0007] To address the aforementioned technical shortcomings, the main objective of this invention is to provide a wave-self-adjusting bistable electromagnetic-triboelectric power generation device, thereby improving energy capture efficiency and mechanical energy conversion efficiency, simplifying the device, and reducing costs.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A wave-self-adjusting bistable electromagnetic-triboelectric power generation device, characterized in that: it includes a cylindrical outer shell 1, an energy capture mechanism 2, and an energy conversion mechanism 3. The outer shell 1 includes a cylindrical outer shell 11, a top plate 12, a partition plate 13, and a bottom plate 14. The partition plate 13 divides the outer shell 1 into an upper section and a lower section. The energy capture mechanism 2 is disposed in the lower section, and the energy conversion mechanism 3 is disposed in the upper section. The energy capture mechanism 2 and the energy conversion mechanism 3 are rotatably connected. The energy capture mechanism 2 includes a self-adjusting bistable mechanism 24.

[0010] Preferably, the energy capture mechanism 2 includes a mass block 21, two guide rods 22, four springs 23, two self-adjusting bistable mechanisms 24, a nut 25, and a screw 26; the screw 26 is vertically arranged in the center of the base plate 14, the lower end of the screw 26 is rotatably connected to the base plate 14 through a first thrust bearing, the upper end of the screw (26) passes through the partition plate (13) and the energy conversion mechanism (3) in sequence, and the top of the upper end of the screw (26) does not contact the top plate (12). Furthermore, the screw (26) is rotatably connected to the partition plate (13) via a second thrust bearing. The mass block 21 is a horizontally arranged circular block with a first through hole at its center, through which the screw 26 passes. The nut 25 is fixedly disposed at the center of the upper end face of the mass block 21, and the nut 25 is threadedly engaged with the screw 26. Two guide rods 22 are respectively disposed on both sides of the screw 26 and are parallel to the screw 26. The upper end of each guide rod 22 is fixed to the... On the partition 13, the lower end of each guide rod 22 passes through the mass block 21 and is fixed to the base plate 14. The guide rod 22 passes through the upper boss 211, the linear bearing 212, and the lower boss 213 on the mass block 21. The upper boss 211 is located on the upper end face of the mass block 21, and the lower boss 213 is located on the lower end face of the mass block 21. The linear bearing 212 is located between the upper boss 211 and the lower boss 213, and is situated inside the mass block 21. The boss 211, linear bearing 212, and lower boss 213 are coaxially arranged; thus, the two guide rods 22 are divided into four regions by the mass block 21, and four springs 23 are respectively sleeved on the four regions, wherein the upper ends of the upper two springs 23 are fixed to the partition plate 13, the lower ends of the upper two springs 23 are fixed to the upper end face of the mass block 21, the upper ends of the lower two springs 23 are fixed to the lower end face of the mass block 21, and the lower ends of the lower two springs 23 are fixed to the base plate 14.

[0011] Preferably, the two self-adjusting bistable mechanisms 24 are symmetrically arranged about the screw 26. Each self-adjusting bistable mechanism 24 includes a piston assembly 241, a fastening assembly 242, a leaf spring 243, a leaf spring connector 244, a cylinder 245, and a piston connector 246. The mass block 21 is connected to one end of the piston assembly 241 through the piston connector 246. The other end of the piston assembly 241 is connected to the middle of the leaf spring 243 through the fastening assembly 242. The two ends of the leaf spring 243 are respectively fixed to the partition plate 13 and the base plate 14 through the leaf spring connector 244. The leaf spring 243 is vertically disposed on the edge of the base plate 14. The leaf spring 243 arches towards the cylindrical outer shell 11. The two leaf springs 243 in the two self-adjusting bistable mechanisms 24 are generally in the shape of "()". The upper end of the leaf spring 243 is wound into a lug 2431, and the lower end of the leaf spring 243 is wound into a cylinder 2432. The leaf spring connector 244 includes a base 2441, two upright plates 2442 and a rotating shaft 2443. The two upright plates 2442 are symmetrically disposed on the base 2441, and the rotating shaft 2443 rotatably connects the two upright plates 2442. The leaf spring connector 244 on the partition 13 and the leaf spring connector 244 on the base plate 14 are arranged opposite to each other. The hook 2431 is hooked onto the pivot 2443 of the leaf spring connector 244 on the partition 13, so that the hook 2431 can not only rotate but also slide up and down. The cylinder 2432 is rotatably connected to the pivot 2443 of the leaf spring connector 244 on the base plate 14 and is adapted to its size, so that the cylinder 2432 can only rotate. The fastening assembly 242 includes a first fastening screw 2421, a fastener 2422, and a limiting plate 2. 423 and the first optical axis 2424, the fastener 2422 is a horizontally placed U-shape, including an arc bottom surface and rectangular bosses on both sides, the arc bottom surface is threaded to the middle part of the leaf spring 243 by the first fastening screw 2421, each of the rectangular bosses is provided with a second through hole and a rectangular through hole, the same first optical axis 2424 is fixedly installed in the two second through holes, the same limiting plate 2423 is installed in the two rectangular through holes, the limiting plate 2423 and the arc bottom surface together limit the leaf spring 243, the first optical axis 2424 is rotatably connected to the piston assembly 241;The piston assembly 241 comprises a piston rod connector 2411, a piston rod 2412, a piston cylinder head 2413, a piston cylinder 2414, a piston 2415, and a shaft connecting platform 2416. The piston rod connector 2411 is a horizontally placed cylinder. The arc surface of the cylinder is cut into a flat surface on the side near the piston rod 2412. The cylinder has a first rotating through hole on its central axis. One end of the piston rod 2412 is threaded to the center of the flat surface, and the other end of the piston rod 2412 is fixed to the piston 2415. The piston cylinder head 2413 is threaded to the piston cylinder 2414. The piston rod 2412... 2. A piston 2415 passes through and is slidably connected to the piston cylinder head 2413. The piston 2415 is located inside the piston cylinder 2414 and is slidably connected to the piston cylinder 2414. The shaft connecting platform 2416 is fixedly provided at the tail end of the piston cylinder 2414. A second rotating through hole is provided in the shaft connecting platform 2416. The first optical shaft 2424 is rotatably disposed in the second rotating through hole. The side of the piston cylinder 2414 is connected to the cylinder 245 through a rubber tube. The cylinder 245 is fixed on the base plate 14. The piston connector 246 includes two limiting blocks 2461 and four limiting T-shaped devices 246. 2. Eight second fastening screws 2463 and one second optical axis 2464. The second optical axis 2464 is rotatably disposed within the first rotating through hole, realizing the rotatable connection between the piston assembly 241 and the piston connector 246. Arc-shaped receiving grooves 214 are respectively provided on both sides of the mass block 21. The piston rod connector 2411 is accommodated within the arc-shaped receiving grooves 214. Two horizontal limiting grooves 215 are provided on the arc-shaped receiving grooves 214, symmetrically arranged about the arc-shaped receiving grooves 214. A fixing groove 216 is provided below the horizontal limiting grooves 215, restricting the second optical axis 2464 within... Within the fixing groove 216, each limiting block 2461 is horizontally inserted into each horizontal limiting groove 215, and the fixing groove 216 is closed to restrict the vertical displacement of the second optical axis 2464. Thus, the second optical axis 2464 is fixedly connected to the mass block 21. Four limiting T-shaped members 2462 are respectively inserted into the upper surface of the mass block 21 and pass through the limiting block 2461 until they are threaded into the bottom surface of the horizontal limiting groove 215, restricting the movement of the limiting block 2461. The eight second fastening screws 2463 engage in pairs to fasten the limiting T-shaped members 2462 to the upper surface of the mass block 21.

[0012] Preferably, the energy conversion mechanism 3 includes an electromagnetic module 31, a nano-friction module 32, and a bearing assembly 33; the nano-friction module 32 includes a nano-friction layer 321 and a second conductive slip ring 322; the bearing assembly 33 includes a first one-way bearing 331, a second one-way bearing 332, and a third thrust bearing 333, wherein the first one-way bearing 331, the third thrust bearing 333, and the second one-way bearing 332 are sequentially installed from bottom to top on the upper end of the screw 26, and all are interference-fitted with the screw 26; the electromagnetic module 31 includes a magnet flywheel 311, a coil flywheel 312, a first conductive slip ring 313, a magnet 314, and a coil 315, wherein the magnet flywheel 311... The wheel 311 is rotatably connected to the screw 26 via the second one-way bearing 332, and the coil flywheel 312 is rotatably connected to the screw 26 via the first one-way bearing 331. The first one-way bearing 331 and the second one-way bearing 332 are installed in opposite directions, so that the movement directions achieved by the first one-way bearing 331 and the second one-way bearing 332 are opposite, to ensure that the magnet flywheel 311 and the coil flywheel 312 rotate in one direction relative to each other. The magnet flywheel 311 includes a horizontal cover plate 3111 and a protrusion 3112 vertically connected to it. The nano-friction layer 321 is disposed below the horizontal cover plate 3111. The nano-friction layer 321 and the... The coil flywheels 312 are all located within the space enclosed by the horizontal cover plate 3111 and the convex edge 3112. The second one-way bearing 332 is located in the center of the horizontal cover plate 3111. N magnets 314, arranged in a ring and uniformly, are fixedly installed on the lower side of the inner wall of the convex edge 3112. N ≥ 4 and is an even number. The magnets 314 are arranged according to the rule that adjacent magnets have opposite polarities. The nano-friction layer 321 is provided in the space enclosed above the magnets 314 and below the horizontal cover plate 3111. The coil flywheels 312 are located below the nano-friction layer 321 and do not contact the magnets 314. The coil flywheels 312 are flat cylindrical blocks. The cylindrical side of the coil flywheel 312 is provided with N coils 315 evenly arranged. The number of coils 315 is the same as the number of magnets 314, and each coil 315 corresponds to one magnet 314. The N coils 315 are connected in series. The first conductive slip ring 313 is fixedly disposed at the center of the lower end face of the coil flywheel 312, and the screw 26 passes through the first conductive slip ring 313 and is spaced apart from it. The last two first wires 3151 led out from the coils 315 are connected to the first conductive slip ring 313. The first conductive slip ring 313 and the coil flywheel 312 rotate together to maintain the circuit connection.The nano-friction layer 321 and the second thrust bearing 333 are concentrically arranged but do not contact each other. The nano-friction layer 321 includes a first organic glass disk layer 3211, a first nano-surface copper film layer 3212, a dielectric film layer 3213, a second nano-surface copper film layer 3214, and a second organic glass disk layer 3215, all with the same diameter, stacked sequentially from top to bottom. The first organic glass disk layer 3211 and the first nano-surface copper film layer 3212 are fixedly connected, and the dielectric film layer 3213, the second nano-surface copper film layer 3214, and the second organic glass disk layer 3215 are also fixedly connected. The first nano-surface copper film layer 3212 and the dielectric film layer 3213 are rotatably connected relative to each other. The second organic glass disk layer 3215 is fixedly connected to the upper end face of the coil flywheel 312, and the first organic glass disk layer 3211 is fixedly connected to the lower end face of the horizontal cover plate 3111. The circuit is fixedly connected in a manner where the first nano-surface copper film layer 3212, the dielectric film layer 3213, and the second nano-surface copper film layer 3214 each have M radially arranged, uniformly spaced fan-shaped cutouts 3216 of the same shape, where M ≥ 4 and is a natural number. The fan-shaped cutouts 3216 on the dielectric film layer 3213 and the second nano-surface copper film layer 3214 overlap. The second conductive slip ring 322 is fixedly disposed at the center of the upper end face of the horizontal cover plate 3111. The upper end of the screw 26 passes through and is spaced from the second conductive slip ring 322. A second wire 32121 leading from the first nano-surface copper film layer 3212 and a third wire 32141 leading from the second nano-surface copper film layer 3214 pass through the wire holes of the horizontal cover plate 3111 and are connected to the second conductive slip ring 322. The second conductive slip ring 322 rotates together with the magnetic flywheel 311 to maintain the circuit connection.

[0013] Preferably, the dielectric film layer 3213 is made of polytetrafluoroethylene (PTFE).

[0014] Preferably, the thickness of the dielectric film layer 3213 is 130-150 micrometers.

[0015] Preferably, the first nano-surface copper film layer 3212 and the second nano-surface copper film layer 3214 are made of the same material, have the same thickness, and have a surface roughness at the nanometer level.

[0016] Preferably, the thickness of the first nano-surface copper film layer 3212 and the second nano-surface copper film layer 3214 is 90-120 micrometers.

[0017] Preferably, the first plexiglass disk layer 3211 and the second plexiglass disk layer 3215 are made of the same material and have the same thickness.

[0018] Preferably, M is 9.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. Introducing a self-adjusting bistable mechanism into the energy capture mechanism, through the cooperation of piston assembly and leaf spring, can automatically adjust the height of the potential barrier, and can achieve well-to-well oscillation even when the wave excitation force is small, thereby increasing the motion amplitude of the mass block and improving the energy capture efficiency.

[0021] 2. The energy conversion mechanism is designed to combine electromagnetic power generation with nano-triboelectric power generation. Energy is transmitted through a mass block and nut-screw structure. Combined with the rotational inertia of two flywheels, power generation is generated simultaneously by cutting magnetic field lines and nano-triboelectricity. Regardless of whether the mass block moves upward or downward, alternating current can be generated, thus improving its energy conversion efficiency, reliability and stability.

[0022] 3. The device of the present invention has a compact structure, which is housed in a cylindrical structure. It is easy to install and suitable for direct use on the hull. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a wave self-adjusting bistable electromagnetic-triboelectric power generation device according to the present invention.

[0024] Figure 2 for Figure 1 A schematic diagram of the overall structure after removing the cylindrical outer shell.

[0025] Figure 3 This is a schematic diagram of the leaf spring of the present invention.

[0026] Figure 4 This is a schematic diagram of the leaf spring connector of the present invention.

[0027] Figure 5 This is a diagram showing the working state of the fastening assembly of the present invention.

[0028] Figure 6 This is a schematic diagram of the piston assembly of the present invention.

[0029] Figure 7 This is a schematic diagram of the piston connector of the present invention.

[0030] Figure 8 This is a schematic diagram of the mass block structure of the present invention.

[0031] Figure 9 This is a schematic diagram of the energy conversion mechanism of the present invention.

[0032] Figure 10 This is a cross-sectional view of the internal structure of the energy conversion mechanism of the present invention.

[0033] Figure 11This is a bottom view of the internal structure of the nano-friction module of the present invention.

[0034] Figure 12 This is a top view of the internal structure of the nano-friction module of the present invention.

[0035] Figure 13 This is a state diagram when the mass block is in its upper limit position.

[0036] Figure 14 This is a state diagram when the mass block is in the first position corresponding to the first potential well.

[0037] Figure 15 This is a state diagram of the mass block when it is in static equilibrium.

[0038] Figure 16 This is a state diagram when the mass block is in the second position corresponding to the second potential well.

[0039] Figure 17 This is a state diagram when mass block 21 is in the lower limit position.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Outer shell; 2. Energy capture mechanism; 3. Energy conversion mechanism.

[0042] Cylindrical shell 11, top plate 12, partition 13, bottom plate 14, mass block 21, guide rod 22, spring 23, self-adjusting bistable mechanism 24, nut 25, screw 26, electromagnetic module 31, nano-friction module 32, bearing assembly 33.

[0043] Upper boss 211, linear bearing 212, lower boss 213, arc receiving groove 214, horizontal limiting groove 215, fixing groove 216, piston assembly 241, fastening assembly 242, leaf spring 243, leaf spring connector 244, cylinder 245, piston connector 246, piston rod connector 2411, piston rod 2412, piston cylinder head 2413, piston cylinder barrel 2414, piston 2415, shaft connecting platform 2416, first fastening screw 2421, fastener 2422, limiting plate 2423, first optical shaft 2424, hanging ear 2431, cylinder 2432, base 2441, upright plate 2442, rotating shaft 2443, limiting block 2461, limiting T-shaped device 2462, second fastening screw 2463, second optical shaft 2464.

[0044] Magnetic flywheel 311, coil flywheel 312, first conductive slip ring 313, magnet 314, coil 315, nano friction layer 321, second conductive slip ring 322, first one-way bearing 331, second one-way bearing 332, third thrust bearing 333.

[0045] Horizontal cover plate 3111, raised edge 3112, first plexiglass disk layer 3211, first nano-surface copper film layer 3212, dielectric film layer 3213, second nano-surface copper film layer 3214, second plexiglass disk layer 3215, fan-shaped hollow part 3216, first conductor 3151, second conductor 32121, third conductor 32141. Detailed Implementation

[0046] The following specific embodiments are a detailed and clear description of the technical solutions of this application in conjunction with the accompanying drawings provided in this specification. The accompanying drawings are only for the purpose of presenting the technical solutions of this application more clearly and do not represent the shape or size in actual production or use, nor should the reference numerals in the drawings be construed as limiting the scope of the claims. Furthermore, the terminology used in the description of this application should be interpreted broadly, and those skilled in the art can understand the specific meaning of the terms according to the actual circumstances. For example, the term "installation" may be defined as a detachable fixed installation or a non-detachable fixed installation; the terms "set" and "provided with" may be defined as a contact setting or a non-contact setting; the terms "connection" and "linked" may be defined as fixed mechanical connections such as welding, riveting, bolting, or interference fit, or movable mechanical connections such as hinges or bearing connections; all possible directional terms are based on the accompanying drawings or directions defined according to actual circumstances and common general knowledge.

[0047] Example 1: As Figures 1-17 This invention provides a wave self-adjusting bistable electromagnetic-triboelectric power generation device, comprising a cylindrical outer shell 1, an energy capture mechanism 2, and an energy conversion mechanism 3. The outer shell 1 includes a cylindrical outer shell 11, a top plate 12, a partition plate 13, and a bottom plate 14. The partition plate 13 divides the outer shell 1 into an upper section and a lower section. The energy capture mechanism 2 is disposed in the lower section, and the energy conversion mechanism 3 is disposed in the upper section. The energy capture mechanism 2 and the energy conversion mechanism 3 are rotatably connected. The energy capture mechanism 2 includes a self-adjusting bistable mechanism 24.

[0048] Based on the foregoing, the energy harvesting mechanism 2 includes a mass block 21, two guide rods 22, four springs 23, two self-adjusting bistable mechanisms 24, a nut 25, and a screw 26. The screw 26 is vertically positioned in the center of the base plate 14. The lower end of the screw 26 is rotatably connected to the base plate 14 via a first thrust bearing. The upper end of the screw 26 passes through the partition plate 13 and the energy conversion mechanism 3 in sequence. The top of the upper end of the screw 26 does not contact the top plate 12. The rod 26 is also rotatably connected to the partition plate 13 via a second thrust bearing. The mass block 21 is a horizontally arranged circular block with a first through hole at its center for the screw 26 to pass through. The nut 25 is fixedly disposed at the center of the upper end face of the mass block 21 and is threadedly engaged with the screw 26. Two guide rods 22 are respectively disposed on both sides of the screw 26 and are parallel to the screw 26. The upper end of each guide rod 22 is fixed to the partition plate 13. Each guide rod 22 has its lower end passing through the mass block 21 and fixed to the base plate 14. The guide rod 22 passes through an upper boss 211, a linear bearing 212, and a lower boss 213 on the mass block 21. The upper boss 211 is located on the upper end face of the mass block 21, and the lower boss 213 is located on the lower end face of the mass block 21. The linear bearing 212 is located between the upper boss 211 and the lower boss 213, and is situated inside the mass block 21. 11. The linear bearing 212 and the lower boss 213 are coaxially arranged; thus, the two guide rods 22 are divided into 4 regions by the mass block 21, and 4 springs 23 are respectively sleeved on the 4 regions, wherein the upper ends of the upper 2 springs 23 are fixed to the partition plate 13, the lower ends of the upper 2 springs 23 are fixed to the upper end face of the mass block 21, the upper ends of the lower 2 springs 23 are fixed to the lower end face of the mass block 21, and the lower ends of the lower 2 springs 23 are fixed to the base plate 14.

[0049] Based on the foregoing, the two self-adjusting bistable mechanisms 24 are symmetrically arranged about the screw 26. Each self-adjusting bistable mechanism 24 includes a piston assembly 241, a fastening assembly 242, a leaf spring 243, a leaf spring connector 244, a cylinder 245, and a piston connector 246. The mass block 21 is connected to one end of the piston assembly 241 through the piston connector 246. The other end of the piston assembly 241 is connected to the middle of the leaf spring 243 through the fastening assembly 242. The two ends of the leaf spring 243 are respectively fixed to the partition plate 13 and the base plate 14 through the leaf spring connector 244. The leaf spring 243 is vertically disposed on the edge of the base plate 14, and the leaf spring 243 arches towards the cylindrical outer shell 11. Two of the leaf springs 243 in the two self-adjusting bistable mechanisms 24 are in a “()” shape. The upper end of the leaf spring 243 is wound into a lug 2431, and the lower end of the leaf spring 243 is wound into a cylinder 2432. The leaf spring connector 244 includes a base 2441, two upright plates 2442, and a rotating shaft 2443. The two upright plates 2442 are symmetrically disposed on the base 2441, and the rotating shaft 2443 rotatably connects the two upright plates 2442. The leaf spring connector 244 on the partition 13 and the leaf spring connector 244 on the base plate 14 are arranged opposite to each other. The hook 2431 is hooked onto the pivot 2443 of the leaf spring connector 244 on the partition 13, so that the hook 2431 can not only rotate but also slide up and down. The cylinder 2432 is rotatably connected to the pivot 2443 of the leaf spring connector 244 on the base plate 14 and is adapted to its size, so that the cylinder 2432 can only rotate. The fastening assembly 242 includes a first fastening screw 2421, a fastener 2422, and a limiting plate 2. 423 and the first optical axis 2424, the fastener 2422 is a horizontally placed U-shape, including an arc bottom surface and rectangular bosses on both sides, the arc bottom surface is threaded to the middle part of the leaf spring 243 by the first fastening screw 2421, each of the rectangular bosses is provided with a second through hole and a rectangular through hole, the same first optical axis 2424 is fixedly installed in the two second through holes, the same limiting plate 2423 is installed in the two rectangular through holes, the limiting plate 2423 and the arc bottom surface together limit the leaf spring 243, the first optical axis 2424 is rotatably connected to the piston assembly 241;The piston assembly 241 comprises a piston rod connector 2411, a piston rod 2412, a piston cylinder head 2413, a piston cylinder 2414, a piston 2415, and a shaft connecting platform 2416. The piston rod connector 2411 is a horizontally placed cylinder. The arc surface of the cylinder is cut into a flat surface on the side near the piston rod 2412. The cylinder has a first rotating through hole on its central axis. One end of the piston rod 2412 is threaded to the center of the flat surface, and the other end of the piston rod 2412 is fixed to the piston 2415. The piston cylinder head 2413 is threaded to the piston cylinder 2414. The piston rod 2412 passes through the piston cylinder head 2413 and is slidably connected to the piston cylinder head 2413. The piston 2415 is located inside the piston cylinder 2414 and is slidably connected to the piston cylinder 2414. The shaft connecting platform 2416 is fixedly provided at the tail end of the piston cylinder 2414. A second rotating through hole is provided in the shaft connecting platform 2416. The first optical shaft 2424 is rotatably disposed in the second rotating through hole. The side of the piston cylinder 2414 is connected to the cylinder 245 through a rubber tube. The cylinder 245 is fixed on the base plate 14. The piston connector 246 includes two limiting blocks 2461. The system includes four limiting T-shaped devices 2462, eight second fastening screws 2463, and one second optical axis 2464. The second optical axis 2464 is rotatably disposed within the first rotating through hole, enabling the rotatable connection between the piston assembly 241 and the piston connector 246. The mass block 21 has arc-shaped receiving grooves 214 on both sides, and the piston rod connector 2411 is accommodated within these arc-shaped receiving grooves 214. Two horizontal limiting grooves 215 are provided on the arc-shaped receiving grooves 214, symmetrically arranged about the arc-shaped receiving grooves 214. A fixing groove 21 is provided below each horizontal limiting groove 215. 6. The second optical axis 2464 is confined within the fixed groove 216. Each limiting block 2461 is horizontally inserted into each horizontal limiting groove 215 and covers the fixed groove 216 to limit the vertical displacement of the second optical axis 2464. Thus, the second optical axis 2464 is fixedly connected to the mass block 21. Four limiting T-shaped members 2462 are respectively inserted into the upper end face of the mass block 21 and pass through the limiting block 2461 to limit the movement of the limiting block 2461. The eight second fastening screws 2463 cooperate in pairs to fasten the limiting T-shaped members 2462 to the upper end face of the mass block 21.

[0050] Based on the foregoing, the energy conversion mechanism 3 includes an electromagnetic module 31, a nano-friction module 32, and a bearing assembly 33; the nano-friction module 32 includes a nano-friction layer 321 and a second conductive slip ring 322; the bearing assembly 33 includes a first one-way bearing 331, a second one-way bearing 332, and a third thrust bearing 333, wherein the first one-way bearing 331, the third thrust bearing 333, and the second one-way bearing 332 are sequentially installed from bottom to top on the upper end of the screw 26, and all are interference-fitted with the screw 26; the electromagnetic module 31 includes a magnet flywheel 311, a coil flywheel 312, a first conductive slip ring 313, a magnet 314, and a coil 315. The magnetic flywheel 311 is rotatably connected to the screw 26 via the second one-way bearing 332, and the coil flywheel 312 is rotatably connected to the screw 26 via the first one-way bearing 331. The first one-way bearing 331 and the second one-way bearing 332 are installed in opposite directions, so that the movement directions achieved by the first one-way bearing 331 and the second one-way bearing 332 are opposite, ensuring that the magnetic flywheel 311 and the coil flywheel 312 rotate in one direction relative to each other. The magnetic flywheel 311 includes a horizontal cover plate 3111 and a protrusion 3112 vertically connected thereto. The nano-friction layer 321 is disposed below the horizontal cover plate 3111. The nano-friction layer 321 and The coil flywheels 312 are all located within the space enclosed by the horizontal cover plate 3111 and the convex edge 3112. The second one-way bearing 332 is located in the center of the horizontal cover plate 3111. N magnets 314, arranged in a ring and uniformly, are fixedly installed on the lower side of the inner wall of the convex edge 3112. N ≥ 4 and is an even number. The magnets 314 are arranged according to the rule that adjacent magnets have opposite polarities. The nano-friction layer 321 is provided in the space enclosed above the magnets 314 and below the horizontal cover plate 3111. The coil flywheels 312 are located below the nano-friction layer 321 and do not contact the magnets 314. The coil flywheels 312 are flat cylindrical blocks. N coils 315 are evenly arranged on the cylindrical side of the coil flywheel 312. The number of coils 315 is the same as the number of magnets 314, and each coil 315 corresponds to one magnet 314. The N coils 315 are connected in series. The first conductive slip ring 313 is fixedly disposed at the center of the lower end face of the coil flywheel 312, and the screw 26 passes through the first conductive slip ring 313 and is spaced apart from it. The last two first wires 3151 led out from the coils 315 are connected to the first conductive slip ring 313. The first conductive slip ring 313 and the coil flywheel 312 rotate together to maintain the circuit connection.The nano-friction layer 321 and the second thrust bearing 333 are concentrically arranged but do not contact each other. The nano-friction layer 321 includes a first organic glass disk layer 3211, a first nano-surface copper film layer 3212, a dielectric film layer 3213, a second nano-surface copper film layer 3214, and a second organic glass disk layer 3215, all with the same diameter, stacked sequentially from top to bottom. The first organic glass disk layer 3211 and the first nano-surface copper film layer 3212 are fixedly connected, and the dielectric film layer 3213, the second nano-surface copper film layer 3214, and the second organic glass disk layer 3215 are also fixedly connected. The first nano-surface copper film layer 3212 and the dielectric film layer 3213 are rotatably connected relative to each other. The second organic glass disk layer 3215 is fixedly connected to the upper end face of the coil flywheel 312, and the first organic glass disk layer 3211 is fixedly connected to the lower end face of the horizontal cover plate 3111. The circuit is fixedly connected in a manner where the first nano-surface copper film layer 3212, the dielectric film layer 3213, and the second nano-surface copper film layer 3214 each have M radially arranged, uniformly spaced fan-shaped cutouts 3216 of the same shape, where M ≥ 4 and is a natural number. The fan-shaped cutouts 3216 on the dielectric film layer 3213 and the second nano-surface copper film layer 3214 overlap. The second conductive slip ring 322 is fixedly disposed at the center of the upper end face of the horizontal cover plate 3111. The upper end of the screw 26 passes through and is spaced from the second conductive slip ring 322. A second wire 32121 leading from the first nano-surface copper film layer 3212 and a third wire 32141 leading from the second nano-surface copper film layer 3214 pass through the wire holes of the horizontal cover plate 3111 and are connected to the second conductive slip ring 322. The second conductive slip ring 322 rotates together with the magnetic flywheel 311 to maintain the circuit connection.

[0051] Based on the foregoing, the dielectric film layer 3213 is made of polytetrafluoroethylene (PTFE).

[0052] Based on the foregoing, the thickness of the dielectric film layer 3213 is 130-150 micrometers.

[0053] Based on the foregoing, the first nano-surface copper film layer 3212 and the second nano-surface copper film layer 3214 are made of the same material, have the same thickness, and have a surface roughness at the nanometer level.

[0054] Based on the foregoing, the thickness of the first nano-surface copper film layer 3212 and the second nano-surface copper film layer 3214 is 90-120 micrometers.

[0055] Based on the foregoing, the first plexiglass disk layer 3211 and the second plexiglass disk layer 3215 have the same material and thickness.

[0056] Based on the foregoing, M is specifically 9.

[0057] In use, the device is fixed to a sailing ship and moves with the ship. Due to inertia and system damping, the mass block 21 of the device moves up and down relative to the outer shell 1. Before the device operates, the piston assembly 241 is in a horizontal state. The piston cylinder 2414 is divided into two sides by the piston 2415. The side closer to the leaf spring 243 is air chamber one, and the side closer to the mass block 21 is air chamber two. The pressure of air chamber one and air chamber two of the piston assembly 241 is adjusted by the cylinder 245 so that the pressure of air chamber one is greater than that of air chamber two. When the mass block 21 moves up and down, the pressure of air chamber one is always greater than that of air chamber two when the piston 2415 moves towards the mass block 21. Therefore, the self-adjusting bistable mechanism 24 provides an upward vertical force when the mass block 21 moves upward from the static equilibrium position and a downward vertical force when the mass block 21 moves downward from the static equilibrium position, thereby increasing the amplitude of the motion of the mass block 21.

[0058] Specific analysis: The specific motion process of this device includes the following 5 special motion states. The self-adjusting bistable mechanism 24 has a potential barrier and potential wells distributed on both sides of the barrier. The potential barrier corresponds to the moment when the mass block 21 is in static equilibrium. Figure 15 This is a state diagram of mass block 21 in a static equilibrium position. The potential wells correspond to the moments when mass block 21 is located above or below the static equilibrium position. Figure 14 This is a state diagram of mass block 21 when it is in the first position corresponding to the first potential well. Figure 16 This is a state diagram of mass block 21 when it is in the second position corresponding to the second potential well. Figure 13 This is a state diagram of mass block 21 at its upper limit position, which is the highest position that mass block 21 can reach upwards. Figure 17 This is a state diagram of mass block 21 at its lower limit position, which is the lowest position that mass block 21 can reach downwards.

[0059] When the mass block 21 moves downward relative to the outer shell 1 along the guide rod 22, the piston connector 246, which is fixedly connected to the mass block 21, moves downward together with the mass block 21, and the piston assembly 241, which is connected to the piston connector 246, moves downward together. Since the fastening assembly 242 is fixed on the leaf spring 243, the fastening assembly 242 will not move downward together. Since the mass block 21 and the piston rod connector 2411 are rotatably connected by the second optical axis 2417, the entire piston assembly 241 will also rotate around the second optical axis 2464. That is, the piston assembly 241 has both downward displacement and rotation. When mass block 21 moves downward from its upper limit position towards its static equilibrium position, piston rod 2412 and piston 2415 slide towards the direction of the first optical axis 2424. At this time, the volume of air chamber one decreases and the pressure increases, while the volume of air chamber two increases and the pressure decreases. The vertically upward component of the force provided by the self-adjusting bistable mechanism 24 first increases and then decreases, reaching zero at the static equilibrium position. The fastening assembly 242 will drive the middle part of the leaf spring 243 to move horizontally away from mass block 21. At the same time, the upper end of the leaf spring 243 is connected to the leaf spring connector 244 fixed at the lower end of the partition 13 through the lug 2431. The lug 2431 will rotate around the leaf spring connector 244 and move downward. The lower end cylinder 2432 of the leaf spring 243 will only rotate around the leaf spring connector 244 fixed on the lower end cover 14. During this process, the potential barrier continuously decreases, reaching its lowest point at the static equilibrium position. Block 21 is more likely to cross the static equilibrium position; when the mass block 21 moves downward from the static equilibrium position to the lower limit position, the piston rod 2412 and piston 2415 slide away from the first optical axis 2424. At this time, the volume of air chamber one increases and the pressure decreases, the volume of air chamber two decreases and the pressure increases, and the vertical downward component force provided by the self-adjusting bistable mechanism 24 increases from 0 and then decreases. Since the direction of the component force is consistent with the direction of movement of the mass block 21, the amplitude of movement of the mass block 21 is increased. The fastening component 242 will drive the middle part of the leaf spring 243 to move horizontally towards the mass block 21. At the same time, the lug 2431 will rotate around the leaf spring connector 244 and move upward. The lower end cylinder 2432 of the leaf spring 243 will only rotate around the leaf spring connector 244 fixed on the lower end cover 14. During this process, the potential barrier continues to rise, and the potential barrier is the highest at the lower limit position. During reverse motion, as mass 21 moves upward from the lower limit position to the static equilibrium position, the potential barrier continuously decreases until it reaches its lowest point at the static equilibrium position. Conversely, as it moves upward from the static equilibrium position to the upper limit position, the potential barrier continuously increases until it reaches its highest point at the upper limit position. The self-adjusting bistable mechanism 24's self-adjusting function throughout the entire device is manifested in the continuous decrease and increase of the potential barrier. As mass 21 approaches the static equilibrium position from either the upper or lower limit position, the potential barrier continuously decreases until it reaches its lowest point at the static equilibrium position. Conversely, as mass 21 moves away from the static equilibrium position and approaches the upper or lower limit position, the potential barrier continuously increases until it reaches its highest point at either the upper or lower limit position.The variability of this potential barrier enables the self-adjusting bistable mechanism to oscillate between wells, thereby increasing the amplitude of the motion of mass block 21. If this self-adjusting bistable mechanism is not used, mass block 21 cannot overcome the potential barrier, and the amplitude of motion cannot be amplified, resulting in poor energy capture.

[0060] Since the first one-way bearing 331 and the second one-way bearing 332 are installed in opposite directions, they rotate in opposite directions. Therefore, it is assumed that the first one-way bearing 331 only starts working when the screw 26 tends to rotate clockwise relative to the coil flywheel 312, and the second one-way bearing 332 only starts working when the screw 26 tends to rotate counterclockwise relative to the magnet flywheel 311. When the mass block 21 is located above the static equilibrium position and close to the first position, and below the static equilibrium position and close to the second position, it is in an accelerating state; when located above the static equilibrium position and away from the first position, and below the static equilibrium position and away from the second position, it is in a decelerating state. The speed of the mass block 21 is maximum when it reaches the first and second positions. Figure 13 As shown, mass block 21 is at its upper limit position, which is the highest position that mass block 21 can reach upwards. When mass block 21 starts to move downwards from the upper limit position, mass block 21 drives screw 26 to rotate clockwise. Figures 13 to 14 The mass block's velocity starts from 0 and increases as it approaches the first position corresponding to the first potential well, reaching its maximum velocity at the first position. The screw 26 rotates clockwise with its angular velocity continuously increasing from 0. When the mass block 21 reaches the first position, the angular velocity of the screw 26 reaches its maximum value. During this period, when the screw 26 has a tendency to rotate clockwise relative to the coil flywheel 312, the first one-way bearing 331 begins to operate, and the screw 26 drives the coil flywheel 312 to rotate together via the first one-way bearing 331. Figures 14 to 15 When mass block 21 moves away from the first position and approaches the static equilibrium position, its velocity decreases as it approaches the static equilibrium position. Screw 26 rotates clockwise with its angular velocity continuously decreasing. During this period, because the angular velocity of screw 26 decreases faster than that of the coil flywheel 312, screw 26 rotates counterclockwise relative to the coil flywheel 312. The first one-way bearing 331 stops working and enters an intermittent period, at which time screw 26 idles. When mass block 21 moves away from the static equilibrium position and approaches the second position corresponding to the second potential well, such as... Figures 15 to 16 As mass block 21 approaches the second position with increasing velocity, screw 26 rotates clockwise with continuously increasing angular velocity. When mass block 21 reaches the second position, the angular velocity of screw 26 is at its maximum. During this period, when screw 26 tends to rotate clockwise relative to coil flywheel 312, the first one-way bearing 331 begins to operate, and screw 26 drives coil flywheel 312 to rotate together via the first one-way bearing 331. When mass block 21 moves away from the second position and reaches the lower limit position, as... Figure 17As shown, the lower limit position is the lowest position that mass block 21 can reach downwards, such as... Figures 16 to 17 As the velocity of mass block 21 gradually decreases to 0, screw 26 rotates clockwise and its angular velocity continuously decreases to 0. During this period, because the angular velocity of screw 26 decreases faster than that of coil flywheel 312, screw 26 rotates counterclockwise relative to coil flywheel 312. The first one-way bearing 331 ceases operation and is in an intermittent period, with screw 26 spinning freely. Throughout the entire descent of mass block 21 from the upper limit position, the first position, the static equilibrium position, the second position, to the lower limit position, screw 26 always rotates clockwise, while magnet flywheel 311 continues to rotate counterclockwise due to inertia. Therefore, screw 26 rotates clockwise relative to magnet flywheel 311, and the second one-way bearing 332 remains inactive. In particular, during the intermittent period when the first one-way bearing 331 is in an intermittent period, screw 26 spins freely.

[0061] The rotation of the coil flywheel 312 drives the second organic glass disk layer 3215, the second nano-surface copper mold layer 3214, the dielectric film layer 3213, and the first conductive slip ring 313, which are fixedly connected to it, to rotate synchronously. The rotation of the magnet flywheel 311 drives the first organic glass disk layer 3211, the first nano-surface copper mold layer 3212, and the second conductive slip ring 322, which are fixedly connected to it, to rotate synchronously. The relative rotation of the coil flywheel 312 and the magnet flywheel 311 drives the relative rotation of the first nano-surface copper mold layer 3212 and the dielectric film layer 3213. Due to the presence of the fan-shaped cutout 3216, the contact area between the first nano-surface copper mold layer 3212 and the dielectric film layer 3213 undergoes a cyclical change of decreasing-increasing-decreasing-increasing, thereby generating alternating current. By connecting the first conductive slip ring 313 and the second conductive slip ring 322 to the rectifier circuit, direct current can be used.

[0062] When the mass block 21 moves in the opposite direction, the screw 26 always rotates counterclockwise, while the coil flywheel 312 continues to rotate clockwise due to inertia. Therefore, when the screw 26 rotates counterclockwise relative to the coil flywheel 312, the first one-way bearing 331 is never working. In particular, when the second one-way bearing 332 is in an intermittent period, the screw 26 spins freely. Similarly, the relative rotation of the coil flywheel 312 and the magnet flywheel 311 causes the first nano-surface copper mold layer 3212 and the dielectric film layer 3213 to rotate relative to each other. Due to the presence of the fan-shaped cutout 3216, the contact area between the first nano-surface copper mold layer 3212 and the dielectric film layer 3213 undergoes a cyclical change of decreasing-increasing-decreasing-increasing, which can also generate alternating current.

[0063] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and features of this application. Solutions or features that are prior art or common knowledge to those skilled in the art will not be described in detail in the above embodiments.

Claims

1. A wave-self-adjusting bistable electromagnetic-triboelectric power generation device, characterized in that: The device includes a cylindrical outer shell (1), an energy-capturing mechanism (2), and an energy conversion mechanism (3). The outer shell (1) includes a cylindrical outer shell (11), a top plate (12), a partition (13), and a bottom plate (14). The partition (13) divides the outer shell (1) into an upper section and a lower section. The energy-capturing mechanism (2) is located in the lower section, and the energy conversion mechanism (3) is located in the upper section. The energy-capturing mechanism (2) and the energy conversion mechanism (3) are rotatably connected. The energy-capturing mechanism (2) includes a self-adjusting bistable mechanism (24). The grabbing mechanism (2) includes a mass block (21), two guide rods (22), four springs (23), two self-adjusting bistable mechanisms (24), a nut (25), and a screw (26). The screw (26) is vertically arranged in the center of the base plate (14). The lower end of the screw (26) is rotatably connected to the base plate (14) through a first thrust bearing. The upper end of the screw (26) passes through the partition plate (13) and the energy conversion mechanism (3) in sequence. The top of the upper end of the screw (26) does not contact the top plate (12), and the screw (26) is also connected to the base plate (14) through a second thrust bearing. The partition plate (13) is rotatably connected. The mass block (21) is a horizontally arranged circular block. The mass block (21) has a first through hole in its center, through which the screw (26) passes. The nut (25) is fixedly disposed at the center of the upper end face of the mass block (21), and the nut (25) is threadedly engaged with the screw (26). Two guide rods (22) are respectively disposed on both sides of the screw (26) and are parallel to the screw (26). The upper end of each guide rod (22) is fixed on the partition plate (13), and the lower end of each guide rod (22) passes through the mass block (21). The guide rod (22) is fixed on the base plate (14) and passes through the upper boss (211), linear bearing (212) and lower boss (213) on the mass block (21). The upper boss (211) is located on the upper end face of the mass block (21), the lower boss (213) is located on the lower end face of the mass block (21), and the linear bearing (212) is located between the upper boss (211) and the lower boss (213) and inside the mass block (21). The upper boss (211), linear bearing (212) and lower boss (213) are coaxially arranged.Thus, the two guide rods (22) are divided into four regions by the mass block (21), and four springs (23) are respectively sleeved on the four regions. The upper ends of the top two springs (23) are fixed to the partition plate (13), and the lower ends of the top two springs (23) are fixed to the upper end face of the mass block (21). The upper ends of the bottom two springs (23) are fixed to the lower end face of the mass block (21), and the lower ends of the bottom two springs (23) are fixed to the base plate (14).

2. The wave self-adjusting bistable electromagnetic-triboelectric power generation device according to claim 1, characterized in that, Two self-adjusting bistable mechanisms (24) are symmetrically arranged about the screw (26). Each self-adjusting bistable mechanism (24) includes a piston assembly (241), a fastening assembly (242), a leaf spring (243), a leaf spring connector (244), a cylinder (245), and a piston connector (246). The mass block (21) is connected to one end of the piston assembly (241) through the piston connector (246). The other end of the piston assembly (241) is connected to the middle of the leaf spring (243) through the fastening assembly (242). The two ends of the leaf spring (243) are respectively fixed to the partition plate (13) and the base plate (14) through the leaf spring connector (244). Above, the leaf spring (243) is vertically arranged on the edge of the base plate (14), and the leaf spring (243) arches towards the cylindrical shell (11). The two leaf springs (243) in the two self-adjusting bistable mechanisms (24) are generally in the shape of "()". The upper end of the leaf spring (243) is wound into a lug (2431), and the lower end of the leaf spring (243) is wound into a cylinder (2432). The leaf spring connector (244) includes a base (2441), two upright plates (2442) and a rotating shaft (2443). The two upright plates (2442) are symmetrically arranged on the base (2441), and the rotating shaft (2443) rotatably connects the two upright plates (2441, 2442, and 2443). 42), the leaf spring connector (244) provided on the partition (13) and the leaf spring connector (244) provided on the base plate (14) are arranged opposite to each other. The lug (2431) is hooked on the pivot (2443) of the leaf spring connector (244) on the partition (13), so that the lug (2431) can not only rotate but also slide up and down. The cylinder (2432) is rotatably connected to the pivot (2443) of the leaf spring connector (244) on the base plate (14) and is adapted to its size, so that the cylinder (2432) can only rotate. The fastening assembly (242) includes a first fastening screw (2421) and a fastener (2 422), a limiting plate (2423) and a first optical axis (2424), the fastener (2422) is a horizontally placed U-shape, including an arc bottom surface and rectangular bosses on both sides, the arc bottom surface is threaded with the middle part of the leaf spring (243) through the first fastening screw (2421), each of the rectangular bosses is provided with a second through hole and a rectangular through hole, the same first optical axis (2424) is fixedly installed in the two second through holes, the same limiting plate (2423) is installed in the two rectangular through holes, the limiting plate (2423) and the arc bottom surface together limit the leaf spring (243), the first optical axis (2424) is rotatably connected to the piston assembly (241);The piston assembly (241) consists of a piston rod connector (2411), a piston rod (2412), a piston cylinder head (2413), a piston cylinder (2414), a piston (2415), and a shaft connecting platform (2416). The piston rod connector (2411) is a horizontally placed cylinder. The arc surface of the cylinder is cut into a flat surface on the side near the piston rod (2412). The cylinder has a first rotating through hole on its central axis. One end of the piston rod (2412) is threaded to the center of the flat surface, and the other end of the piston rod (2412) is fixed to the piston (2415). The piston cylinder head (2413) is threaded to the piston cylinder (2414). The piston rod... (2412) Passes through the piston cylinder head (2413) and is slidably connected to the piston cylinder head (2413). The piston (2415) is located inside the piston cylinder (2414) and is slidably connected to the piston cylinder (2414). The shaft connecting platform (2416) is fixedly provided at the tail end of the piston cylinder (2414). A second rotating through hole is provided in the shaft connecting platform (2416). The first optical axis (2424) is rotatably provided in the second rotating through hole. The side of the piston cylinder (2414) is connected to the cylinder (245) through a rubber tube. The cylinder (245) is fixed on the base plate (14). The piston connector (246) includes 2 limiting blocks (2461) and 4 The system includes a limiting T-shaped device (2462), eight second fastening screws (2463), and a second optical axis (2464). The second optical axis (2464) is rotatably disposed within the first rotating through hole to achieve a rotatable connection between the piston assembly (241) and the piston connector (246). The mass block (21) has arc-shaped receiving grooves (214) on both sides. The piston rod connector (2411) is accommodated within the arc-shaped receiving grooves (214). Two horizontal limiting grooves (215) are provided on the arc-shaped receiving grooves (214), symmetrically arranged about the arc-shaped receiving grooves (214). A fixing groove (215) is provided below the horizontal limiting grooves (215). 6) The second optical axis (2464) is confined within the fixed groove (216). Each of the limiting blocks (2461) is horizontally inserted into each of the horizontal limiting grooves (215) and covers the fixed groove (216) to limit the vertical displacement of the second optical axis (2464). Thus, the second optical axis (2464) is fixedly connected to the mass block (21). Four limiting T-shaped devices (2462) are respectively inserted into the upper surface of the mass block (21) and pass through the limiting block (2461) to limit the movement of the limiting block (2461). The eight second fastening screws (2463) cooperate in pairs to fasten the limiting T-shaped devices (2462) to the upper surface of the mass block (21).

3. The wave self-adjusting bistable electromagnetic-triboelectric power generation device according to claim 2, characterized in that, The energy conversion mechanism (3) includes an electromagnetic module (31), a nano-friction module (32), and a bearing assembly (33); the nano-friction module (32) includes a nano-friction layer (321) and a second conductive slip ring (322); the bearing assembly (33) includes a first one-way bearing (331), a second one-way bearing (332), and a third thrust bearing (333), wherein the first one-way bearing (331), the third thrust bearing (333), and the second one-way bearing (332) are installed sequentially from bottom to top on the upper end of the screw (26), and all are interference-fitted with the screw (26);The electromagnetic module (31) includes a magnet flywheel (311), a coil flywheel (312), a first conductive slip ring (313), a magnet (314), and a coil (315). The magnet flywheel (311) is rotatably connected to the screw (26) via the second one-way bearing (332), and the coil flywheel (312) is rotatably connected to the screw (26) via the first one-way bearing (331). The first one-way bearing (331) and the second one-way bearing (332) are installed in opposite directions, so that the motion directions achieved by the first one-way bearing (331) and the second one-way bearing (332) are opposite. Conversely, to ensure that the magnetic flywheel (311) and the coil flywheel (312) rotate in one direction relative to each other, the magnetic flywheel (311) includes a horizontal cover plate (3111) and a protruding edge (3112) connected vertically thereto. The nano-friction layer (321) is disposed below the horizontal cover plate (3111). The nano-friction layer (321) and the coil flywheel (312) are both located within the space enclosed by the horizontal cover plate (3111) and the protruding edge (3112). The second one-way bearing (332) is disposed in the center of the horizontal cover plate (3111). A fixed bearing is provided on the lower side of the inner wall of the protruding edge (3112). N magnets (314) are arranged in a uniform ring, where N ≥ 4 and is an even number. The magnets (314) are arranged according to the opposite polarity of adjacent magnets. A nano-friction layer (321) is disposed within the space enclosed above the magnets (314) and below the horizontal cover plate (3111). A coil flywheel (312) is disposed below the nano-friction layer (321) and does not contact the magnets (314). The coil flywheel (312) is a flat cylindrical block. N coils (315) are uniformly arranged on the cylindrical side of the coil flywheel (312). The number of coils (315) is equal to the number of magnets (314) in the ring. The number of magnets (314) is the same, and each coil (315) corresponds to one magnet (314). The N coils (315) are connected in series. The first conductive slip ring (313) is fixedly disposed at the center of the lower end face of the coil flywheel (312), and the screw (26) passes through the first conductive slip ring (313) and is spaced apart from it. The last two first wires (3151) drawn out from the coil (315) are connected to the first conductive slip ring (313). The first conductive slip ring (313) and the coil flywheel (312) rotate together to maintain the circuit connection.The nano-friction layer (321) and the second thrust bearing (333) are concentrically arranged but do not contact each other. The nano-friction layer (321) includes a first organic glass disk layer (3211), a first nano-surface copper film layer (3212), a dielectric film layer (3213), a second nano-surface copper film layer (3214), and a second organic glass disk layer (3215), all with the same diameter, stacked sequentially from top to bottom. 12) The dielectric film layer (3213), the second nano-surface copper film layer (3214), and the second plexiglass disk layer (3215) are fixedly connected. The first nano-surface copper film layer (3212) and the dielectric film layer (3213) are rotatably connected relative to each other. The second plexiglass disk layer (3215) is fixedly connected to the upper end face of the coil flywheel (312). The first plexiglass disk layer (3211) is fixedly connected to the lower end face of the horizontal cover plate (3111). The first nano-surface copper film layer (3212), the dielectric film layer (3213), and the second nano-surface copper film layer (3214) each have M radially arranged uniformly arranged fan-shaped cutouts (3216) of the same shape, where M ≥ 4 and is a natural number. The fan-shaped cutouts (3216) on the dielectric film layer (3213) and the second nano-surface copper film layer (3214) overlap. The second conductive slip ring (322) is fixedly disposed at the center of the upper end face of the horizontal cover plate (3111). The upper end of the rod (26) passes through and is spaced apart from the second conductive slip ring (322). A second wire (32121) leading from the first nano-surface copper film layer (3212) and a third wire (32141) leading from the second nano-surface copper film layer (3214) pass through the wire holes of the horizontal cover plate (3111) and are connected to the second conductive slip ring (322). The second conductive slip ring (322) rotates together with the magnetic flywheel (311) to maintain the circuit connection.

4. The wave self-adjusting bistable electromagnetic-triboelectric power generation device according to claim 3, characterized in that, The dielectric film layer (3213) is made of polytetrafluoroethylene (PTFE).

5. A wave-self-adjusting bistable electromagnetic-triboelectric power generation device according to claim 3, characterized in that, The dielectric film layer (3213) has a thickness of 130-150 micrometers.

6. A wave-self-adjusting bistable electromagnetic-triboelectric power generation device according to claim 3, characterized in that, The first nano-surface copper film layer (3212) and the second nano-surface copper film layer (3214) are made of the same material, have the same thickness, and have a surface roughness at the nanometer level.

7. A wave-self-adjusting bistable electromagnetic-triboelectric power generation device according to claim 3, characterized in that, The thickness of the first nano-surface copper film layer (3212) and the second nano-surface copper film layer (3214) is 90-120 micrometers.

8. A wave-self-adjusting bistable electromagnetic-triboelectric power generation device according to claim 3, characterized in that, The first plexiglass disk layer (3211) and the second plexiglass disk layer (3215) have the same material and thickness.

9. A wave-self-adjusting bistable electromagnetic-triboelectric power generation device according to claim 3, characterized in that, The M is specifically 9.

Citation Information

Patent Citations

  • Tension-compression combined type self-adjusting bistable wave energy converter

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