A screw driven sea wave generator

Abstract

The application is suitable for the technical field of ocean energy collection, and provides a spiral rod driven sea wave generator. The sea wave generator is internally provided with a spiral power mechanism and a TENG+EMG dual-mode power generation mechanism. The spiral rod drives two groups of face ratchets+driven rings in sequence through reciprocating movement on the axis, so that two dielectric discs rotate in sequence, the reciprocating wave energy of the sea wave is converted into driving force of the corresponding power generation structure in stages, and efficient rectification output of low-frequency mechanical energy is realized.

Description

Technical Field

[0001] This application belongs to the field of marine energy harvesting technology, and in particular relates to a screw-driven wave generator. Background Technology

[0002] Currently, most triboelectric nanogenerators (TENGs) still face numerous technical and environmental challenges in practical applications, especially in energy harvesting from low-frequency (ultra-low-frequency) and low-steep waves. The usable wave frequencies in the ocean are around 0.1–0.33 Hz, and the wave steepness is around 0.01–0.1 Hz. Within this frequency and wave steepness range, few TENGs can maintain good performance output.

[0003] Meanwhile, due to the highly random, low-frequency, and low-steepness characteristics of ocean wave motion (frequency typically less than 0.33 Hz, and steepness meaning the angle at which the TENG tilts due to the wave is less than 15°), existing triboelectric generators suitable for harvesting low-frequency wave energy employ two main methods. One method temporarily stores intermittent wave energy using precision components such as springs and gears, then releases it all at once. This method requires high precision in component manufacturing, has a complex structure, is difficult to produce, and is highly dependent on wave steepness. The other method reduces friction through non-contact or soft-contact operation to generate output for tens of seconds under a single external excitation. This method suffers from charge dissipation over time and low power output due to a small contact area.

[0004] On the other hand, most existing triboelectric nanogenerators for wave energy harvesting employ a contact-separation operating mode, which tends to generate high-amplitude but extremely short-duration pulsed electrical outputs under wave excitation. This instantaneous high-pulse output typically exhibits problems such as discrete output waveforms, low energy utilization, and poor compatibility with subsequent energy management and storage circuits. This not only increases the design complexity of rectification, voltage regulation, and energy storage units but also makes it difficult to achieve stable and continuous energy output under low-frequency, irregular wave conditions. Existing technologies have shortcomings. Summary of the Invention

[0005] The purpose of this application is to provide a screw-driven wave generator that overcomes one of the problems of existing wave energy triboelectric power generation devices, such as low energy capture efficiency, unstable output, and poor durability under ultra-low frequency and low wave steep sea conditions.

[0006] On one hand, this application provides a propeller-driven wave generator, including a housing, and a power mechanism and a power generation mechanism disposed within the housing; the housing is a cylindrical body; The power generation mechanism includes three electrode disks and two dielectric disks coaxially arranged with the central axis of the housing; the dielectric disks are arranged between the electrode disks; the outer periphery of the electrode disks is fixedly connected to the inner wall of the housing, and the outer periphery of the dielectric disks is slidably connected to the inner wall of the housing. The electrode disk located at the edge has eight equally divided fan-shaped copper foils laid along the circumference on the side pointing towards the electrode disk located at the center as copper electrodes; a raised partition strip made of polyester foam is provided between the two fan-shaped copper electrodes; the partition strip is arranged along the radial direction. On one side of the dielectric disk pointing towards the electrode disk located at the edge, there are eight equally divided fan-shaped areas along the circumference. Nylon film and polytetrafluoroethylene film are laid alternately on the fan-shaped areas, forming a ternary flexible dielectric layer with three-dimensional volume effect together with the partition strip made of polyester foam. One of the two dielectric disks, pointing towards the surface of the electrode disk located in the middle, has six magnets evenly arranged along the circumference. The electrode disk located in the middle has six copper coils evenly arranged along the circumference on the side near the magnet, which together with the magnet on the dielectric disk form an electromagnetic generator. The power mechanism includes a helical rod arranged on the axis of the outer shell and push disks fixedly arranged at both ends of the helical rod; the helical rod passes through a circular through hole at the center of the electrode disk and the dielectric disk; the push disks are coaxially arranged with the outer shell, and the push disks at both ends of the helical rod respectively form a sealed space with the inner wall of one end of the corresponding outer shell; a gravity ball is arranged in the sealed space; The power mechanism further includes a face ratchet and a driven ring mounted on the helical rod; the face ratchet has a plurality of ratchet teeth protruding from its side near the driven ring and evenly arranged around its circumference; the driven ring has a set of tooth grooves or teeth matching the shape and number of the ratchet teeth on its side near the face ratchet; the side of the driven ring away from the face ratchet is fixedly connected to the surface of the dielectric disk pointing towards the center of the electrode disk; When the shell tilts due to ocean waves, the gravity ball pushes the screw rod to move along the axis of the shell under the action of gravity. A set of ratchet wheels and driven rings with the closing direction consistent with the direction of movement of the screw rod drive the corresponding dielectric disk to rotate, converting the axial movement of the screw rod into rotational movement around the axis, thereby realizing the power generation of the triboelectric generator and the electromagnetic generator.

[0007] The wave generator of this application uses gravity balls at two ends to collect the kinetic energy released by the irregular movement of waves, and drives the screw rod with push disks at both ends to generate axial reciprocating motion. Combined with the clutch component consisting of a ratchet and a driven ring, the reciprocating axial displacement of the screw rod is converted into continuous unidirectional rotation of the two dielectric disks, realizing continuous low-frequency mechanical energy and high-frequency acquisition. Meanwhile, the triboelectric nanogenerator (TENG) in the power generation mechanism introduces a ternary flexible dielectric layer composed of polyester foam (PET foam), nylon (PA), and polytetrafluoroethylene (PTFE) with a three-dimensional volume effect into the friction layer, forming a composite interface that combines surface friction and internal volumetric energy storage, thereby improving charge density and output stability. The electromagnetic generator (EMG) part has copper coils on both sides of the central electrode disk, which respectively sense the magnetic field lines cut by the magnets on the alternating rotating dielectric disks on both sides, realizing continuous power generation. By optimizing the electrode distribution and rotating module parameters, and combining the characteristics of EMG generating high current and TENG generating high voltage, the power generation mechanism enables the device to achieve high voltage and high current output even in environments with fluctuations below 0.1 Hz, thereby achieving efficient collection of low-frequency ocean wave energy and providing continuous and stable energy support for marine self-powered monitoring equipment. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the internal structure of the generator in this application; Figure 2 These are schematic diagrams of two packaging structures for the generator in this application; Figure 3 This is a voltage histogram of the generator of this application at different frequencies and tilt angles; Figure 4 This is a bar chart of the current of the generator in this application at different frequencies and tilt angles; Figure 5 These are the voltage charging curves of the generator in this application under different capacitors; Figure 6 This is a detailed illustration of the generator successfully lighting up the light bulb. Figure 7 This is a schematic diagram of the preferred structure of the ratchet and driven ring in the generator of this application. Detailed Implementation

[0009] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figure 1-5 The present application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

[0010] The specific implementation of this application will be described in detail below with reference to specific embodiments: Example 1: Figure 1-2 The structural composition of the screw-driven wave generator provided in Embodiment 1 of this application is shown. For ease of explanation, only the parts related to the embodiment of this application are shown, and are described in detail below: On the one hand, as attached Figure 1-2 As shown, this application provides a screw-driven wave generator, including a housing, and a power mechanism and a power generation mechanism disposed within the housing; the housing is a cylindrical body; The power generation mechanism includes three electrode disks and two dielectric disks arranged coaxially with the central axis of the housing; the dielectric disks are arranged between the electrode disks; the outer periphery of the electrode disks is fixedly connected to the inner wall of the housing, and the outer periphery of the dielectric disks is slidably connected to the inner wall of the housing. The electrode disk located at the edge has eight equally divided sector-shaped copper foils laid along the circumference on the side pointing towards the electrode disk located at the center, serving as copper electrodes; a raised partition strip made of polyester foam is provided between the two copper electrodes; the partition strip is arranged along the radial direction.

[0011] In a preferred embodiment, the copper electrode can be replaced with an electrode composed of one of the following: aluminum, silver, nickel, ITO film, graphene film, and carbon nanotube composite film.

[0012] The dielectric disk points to one side of the electrode disk located at the edge, and eight equally divided fan-shaped areas are arranged along the circumference. Nylon film and polytetrafluoroethylene film are laid alternately on the fan-shaped areas, forming a ternary flexible dielectric layer with three-dimensional volume effect together with the partition strip made of polyester foam. In this structure, the ternary flexible dielectric layer undergoes micro-elastic deformation upon each contact, promoting surface charge accumulation and reducing wear. The porous structure of the spacers made of polyester foam stores some charge, acting as both a "charge transport medium" and a "charge pump," thereby increasing the overall output voltage and current. This triboelectric power generation structure, through the use of a ternary dielectric layer structure composed of polyester foam, nylon, and PTFE within the friction unit formed by the dielectric disk and the edge electrode disk, achieves a synergistic effect of flexible contact and volumetric charge storage, significantly improving the charge density and output power at the friction interface while also solving the problem of charge dissipation.

[0013] One of the two dielectric disks points to the side of the electrode disk located in the middle, and six magnets are evenly arranged along the circumference. The electrode disk in the middle has six copper coils evenly arranged along the circumference on the side near the magnet, which together with the magnet on the dielectric disk form an electromagnetic generator. The power mechanism includes a helical rod mounted on the axis of the outer casing and push disks fixedly mounted at both ends of the helical rod; the helical rod passes through a circular through hole at the center of the electrode disk and the dielectric disk; the push disks are coaxially mounted with the casing, and the push disks at both ends of the helical rod respectively form a sealed space with the inner wall of one end of the corresponding outer casing; a gravity ball is provided in the sealed space; The power mechanism also includes a face ratchet and a driven ring mounted on the screw rod; the face ratchet has a plurality of ratchet teeth protruding from its side near the driven ring and evenly arranged around its circumference; the driven ring has a tooth groove or tooth matching the shape and number of the ratchet teeth on its side near the face ratchet; the side of the driven ring away from the face ratchet is fixedly connected to the surface of the dielectric disk pointing towards the electrode disk located in the middle.

[0014] As attached Figure 7 As shown, the two sides of the ratchet are set as inclined planes with different slopes. The inclined plane with a relatively larger slope is set in the direction of rotation in which the auger extends into the central through-hole of the ratchet, causing the ratchet to rotate. The central through-hole of the ratchet is set to a shape that matches the radial cross-section of the auger, or a shape that allows the auger to rotate through it, such as the shape of two nested and intersecting circles of the same size.

[0015] Preferably, the width of the side with a smaller slope is smaller than that of the side with a larger slope, so that the ratchet forms a P-shape.

[0016] In practical implementation, by optimizing the slope of the ratchet teeth, it is ensured that, under certain slope conditions, the power generated by the weighted ball through the helical rod can be continuously transmitted to the driven ring. The slope of the triangular protrusion on the driven ring is set to 30°. When the slope of the ratchet face is between 60° and 90°, the gravitational potential energy of the weighted ball can effectively drive the rotation of the driven ring; however, when the slope is between 10° and 30°, the energy transmission becomes unstable due to insufficient sliding friction, resulting in a "slippage" effect. By adjusting the slope, we can achieve efficient driving of the driven ring by the ratchet face, minimize friction loss, and ensure the continuous operation of the dielectric disk of the device as much as possible.

[0017] The mass of the gravity ball is 120 to 220 grams; the length of the helical rod is 100 to 160 millimeters; preferably, the mass of the gravity ball is 220 grams and the length of the helical rod is 120 millimeters.

[0018] In practical implementation, when the gravity ball tilts due to the waves, the helical rod is pushed to move along the axis of the shell under the action of gravity. A set of ratchet wheels and driven rings with the closing direction in the same direction as the direction of the helical rod's movement drive the corresponding dielectric disk to rotate, converting the axial movement of the helical rod into rotational movement around the axis, thereby realizing the power generation of the triboelectric generator and the electromagnetic generator.

[0019] To enable the helical-driven cylindrical triboelectric nanogenerator (HRC-TENG) to achieve continuous and efficient power output through low-frequency wave energy capture and flow velocity sensing, particularly to rotate continuously for 12 seconds under a single external mechanical excitation, this application precisely designed various key parameters of the device. The design includes core components such as a weighted ball, a helical rod, and a ratchet clutch, and has been optimized according to the requirements of energy conversion and mechanical motion. The specific design and calculations are as follows: Mass of the heavy sphere (m): To ensure the system can rotate continuously for 12 seconds, the mass of the heavy sphere needs to provide sufficient gravitational potential energy to drive the screw rod to continuously rotate the dielectric disk. According to the principle of conservation of energy, the potential energy released by the heavy sphere is calculated as follows: ,in The height from which the heavy ball falls. The acceleration due to gravity. Calculations show that the mass of the heavy ball is set to 120–220 g to ensure it can provide approximately 0.85–1.1 J of energy under low-frequency wave excitation, thus guaranteeing the dielectric disk's mechanical structure can maintain continuous rotation for 12 seconds. The falling height of the heavy ball... The structure is preferably made of a 220g ball, determined by the wave amplitude and the shape and mass of the device's enclosure.

[0020] Screw length (h): The screw length is designed to be 100–160 mm, achieving efficient energy transfer through its cooperation with the ratchet structure. The screw length is one of the key factors determining the mechanical energy conversion efficiency. Combining the screw design with the frictional characteristics of the ratchet clutch, under a given mechanical load, this device can effectively convert the potential energy from the heavy ball into rotational kinetic energy. A screw length of 120 mm is preferred for this structure. This design ensures that the screw continuously provides sufficient power for 12 seconds, enabling the dielectric disk to complete a predetermined rotation cycle.

[0021] The aforementioned wave generator is equipped with a spiral power mechanism and a dual-mode power generation mechanism of TENG+EMG inside the generator. The reciprocating motion of the spiral rod on the axis sequentially drives two sets of face ratchet + driven ring, causing the two dielectric disks to rotate sequentially. This converts the reciprocating wave energy of the waves into the driving force of the corresponding power generation structure in stages, achieving efficient rectification and output of low-frequency mechanical energy.

[0022] In practical implementation, under the excitation of an external wave, one of the dielectric disks of the aforementioned wave generator can rotate continuously for 12 seconds. A wave frequency of 0.1Hz corresponds to a wave excitation approximately once every 10 seconds, and the generator structure of this application can generate continuous power output for 12 seconds under a single excitation, perfectly matching the typical low-frequency wave frequency of 0.1Hz. This maintains good power output even in low-frequency wave environments.

[0023] As attached Figure 2 As shown, the propeller-driven wave generator of this application can also be installed in a spherical float, which can also achieve the harvesting of wave energy.

[0024] Furthermore, the gap between the electrode disk and the dielectric disk is 6 mm.

[0025] Specifically, existing triboelectric nanogenerators used for low-frequency applications can operate continuously for tens of seconds under a single wave excitation. A common strategy is to increase the gap between the dielectric layer and the electrode layer. While this increases the continuous output time, a larger gap results in a small contact area, leading to charge dissipation and low power output during long-term cyclic operation. This application introduces spacers made of polyester foam within a 6mm gap. The soft contact between the spacers and the dielectric disk does not increase friction, ensuring continuous output. Furthermore, the polyester foam acts as both a "charge transport medium" and a "charge pump," solving the problems of charge dissipation and poor power output caused by excessively large gaps.

[0026] Furthermore, the copper foil is 0.1 mm thick, ensuring stable power output. The nylon film is 0.03 mm thick; the polytetrafluoroethylene film is 0.03 mm thick; the electrode disk and dielectric disk are made of acrylic, which is 3 mm thick.

[0027] In practical applications, the thinner the dielectric layer, i.e., the nylon film and polytetrafluoroethylene film, the greater the electrical output. However, an excessively thin dielectric layer is prone to electrostatic breakdown and charge leakage under high electric fields, and also leads to poor material durability. Therefore, this application preferably uses a dielectric layer thickness of 0.03 mm.

[0028] The dielectric material of the positive friction layer is a 0.03 mm thick nylon (PA) film, which has a weak electron affinity and a high surface charge density; the negative friction material is a 0.03 mm thick polytetrafluoroethylene (PTFE) film, which has a strong electron affinity. Both PA and PTFE have self-lubricating properties, while the electronegativity of polyester (PET) foam is between that of PA and PTFE.

[0029] Existing triboelectric nanogenerators typically use only two dielectric materials. The structure of this application uses three different dielectric materials to form a ternary flexible dielectric layer. This ternary dielectric triboelectric nanogenerator can accelerate the frequency of positive and negative alternating current changes, increase the power output density, and thus improve the output power, effectively enhancing the output performance of the triboelectric nanogenerator.

[0030] When the generator system is stationary, the PET foam maintains flexible contact with the PA sector dielectric. As the wave-driven gravity ball pushes the auger, the dielectric disk on one side begins to rotate, and the PET foam first enters frictional contact with the PA surface. Due to the higher electronegativity of PET compared to PA, charge separation occurs during frictional contact, resulting in negative triboelectric charge on the PET surface and positive charge on the PA surface, while simultaneously inducing corresponding induced charges on the copper electrode. The porous structure of the PET foam provides a three-dimensional volumetric charge storage effect, allowing charge to accumulate not only on the surface but also in the bulk phase. As the frictional process continues, more positive charge accumulates within the PA layer. Subsequently, the PET foam comes into contact with the PTFE sector dielectric; due to the stronger electronegativity of PTFE, PET transfers additional electrons to PTFE, generating new triboelectric charge on the PTFE layer surface. During charge dissipation, the PET foam simultaneously acts as a dynamic charge pump, compensating for unavoidable charge loss and thus maintaining the continuity of the triboelectric polarization process. The potential difference between the paired electrodes drives the reciprocating flow of electrons, generating alternating current output. As the system gradually approaches charge saturation, the continuous rotational friction causes the device to reach its maximum output performance.

[0031] Furthermore, the central through hole of the electrode disk is connected to the screw rod via a linear bearing.

[0032] Furthermore, the dielectric disk is connected to the inner wall of the housing via a bearing.

[0033] Furthermore, the shell is made of acrylic; the surface of the shell is coated with an anti-corrosion coating, and the sealing part uses silicone rubber O-rings to prevent seawater from seeping in.

[0034] Furthermore, it also includes: an energy management unit mounted on the housing; the input terminals of the energy management unit are electrically connected to copper electrodes or copper coils on the electrode disk; the energy management unit includes: a supercapacitor array, a lithium battery charging module, a DC-DC voltage regulator chip, an energy time-sharing scheduling circuit, and a low-power power management chip system; it rectifies, stores, and regulates the input electrical energy to achieve stable power output.

[0035] Specifically, the energy management unit calibrates the output voltage, current, and power density of the device based on the relationship between the output signal of the triboelectric layer (triboelectric nanogenerator plus electromagnetic generator) and the rotation frequency, thereby obtaining multiple power generation performance parameters. All performance parameters are used to control energy rectification, energy storage, and load output to achieve stable collection and conversion of wave energy.

[0036] Furthermore, the screw can be a double-pitch structure, a ball screw, or a linear guide.

[0037] In practice, the applicant measured the output characteristics of a cylindrical triboelectric nanogenerator (HRC-TENG) driven by a screw at different rotational speeds. For example... Figure 3 The figure shows the output voltage curves at different frequencies and tilt angles. Figure 4 The corresponding output current curves were obtained through experiments at frequencies of 0.1–0.9 Hz and tilt angles of 5–15°. The results show that the voltage does not change significantly with frequency and tilt angle, while the current increases with both frequency and tilt angle. Furthermore, see attached... Figure 5 As shown, charging experiments were conducted on capacitors of different capacities. The 1410μF capacitor can be charged to 10V within 20 seconds, indicating that the device has high charging efficiency. Further experiments show that the generator can simultaneously light up the following (attached) lights under a fluctuation frequency of 0.1Hz. Figure 6 The 756 high-brightness LEDs shown demonstrate its excellent energy conversion performance and output stability.

[0038] Figure 3 and Figure 4 This demonstrates that the structure exhibits excellent power output under low-frequency and low-wave-steep conditions. Figure 5 It involves charging a capacitor, which can be charged to a certain voltage in a short time to demonstrate its power generation capacity. Figure 6 This demonstrates the concrete representation of the generator's power generation capability in this application.

[0039] Example 2: In a preferred embodiment, the ratchet teeth have an asymmetrical tooth profile in the direction perpendicular to the surface of the ratchet wheel. One side of the ratchet tooth intersects the surface of the ratchet wheel perpendicularly to form a vertical plane, while the other side of the ratchet tooth intersects the surface of the ratchet wheel at an angle to form a bevel. The central through-hole of the ratchet wheel is configured with a shape consistent with the radial cross-section of the auger, or a shape that allows the auger to rotate through it, such as two nested circles of the same size intersecting. The vertical surface of the ratchet teeth is positioned in the rotational direction in which the auger extends into the central through-hole of the ratchet wheel, causing the ratchet wheel to rotate.

[0040] In summary, the screw-driven wave generator proposed in this application has a screw power mechanism and a dual-mode power generation mechanism consisting of five coaxial disks arranged in parallel, namely TENG+EMG, installed inside the generator. The reciprocating motion of the screw on the axis sequentially drives two sets of surface ratchet + driven ring, causing the two dielectric disks to rotate sequentially. This converts the reciprocating oscillation of the waves into the driving force of the corresponding power generation structure in stages, achieving efficient rectification and output of low-frequency mechanical energy.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A propeller-driven wave generator, comprising a housing, and a power mechanism and a power generation mechanism disposed within the housing; characterized in that, The shell is a cylindrical body; The power generation mechanism includes three electrode disks and two dielectric disks coaxially arranged with the central axis of the housing; the dielectric disks are arranged between the electrode disks; the outer periphery of the electrode disks is fixedly connected to the inner wall of the housing, and the outer periphery of the dielectric disks is slidably connected to the inner wall of the housing. The electrode disk located at the edge has eight equally divided fan-shaped copper foils laid along the circumference on the side pointing towards the electrode disk located at the center as copper electrodes; a raised partition strip made of polyester foam is provided between the two fan-shaped copper electrodes; the partition strip is arranged along the radial direction. On one side of the dielectric disk pointing towards the electrode disk located at the edge, there are eight equally divided fan-shaped areas along the circumference. Nylon film and polytetrafluoroethylene film are laid alternately on the fan-shaped areas, forming a ternary flexible dielectric layer with three-dimensional volume effect together with the partition strip made of polyester foam. One of the two dielectric disks, pointing towards the surface of the electrode disk located in the middle, has six magnets evenly arranged along the circumference. The electrode disk located in the middle has six copper coils evenly arranged along the circumference on the side near the magnet, which together with the magnet on the dielectric disk form an electromagnetic generator. The power mechanism includes a helical rod arranged on the axis of the outer shell and push disks fixedly arranged at both ends of the helical rod; the helical rod passes through a circular through hole at the center of the electrode disk and the dielectric disk; the push disks are coaxially arranged with the outer shell, and the push disks at both ends of the helical rod respectively form a sealed space with the inner wall of one end of the corresponding outer shell; a gravity ball is arranged in the sealed space; The power mechanism further includes a face ratchet and a driven ring mounted on the helical rod; the face ratchet has a plurality of ratchet teeth protruding from its side near the driven ring and evenly arranged around its circumference; the driven ring has a set of tooth grooves or teeth matching the shape and number of the ratchet teeth on its side near the face ratchet; the side of the driven ring away from the face ratchet is fixedly connected to the surface of the dielectric disk pointing towards the center of the electrode disk; When the shell tilts due to ocean waves, the gravity ball pushes the screw rod to move along the axis of the shell under the action of gravity. A set of ratchet wheels and driven rings with the closing direction consistent with the direction of movement of the screw rod drive the corresponding dielectric disk to rotate, converting the axial movement of the screw rod into rotational movement around the axis, thereby realizing the power generation of the triboelectric generator and the electromagnetic generator.

2. The wave generator as described in claim 1, characterized in that, The gap between the electrode disk and the dielectric disk is 6 mm.

3. The wave generator as described in claim 2, characterized in that, The copper foil has a thickness of 0.1 mm; the nylon film has a thickness of 0.03 mm; the polytetrafluoroethylene film has a thickness of 0.03 mm; the electrode disk and the dielectric disk are made of acrylic; the acrylic has a thickness of 3 mm.

4. The wave generator as described in claim 1, characterized in that, The mass of the gravity ball is 120 to 220 grams; the length of the spiral rod is 100 to 160 millimeters.

5. The wave generator as described in claim 1, characterized in that, The central through hole of the electrode disk is connected to the helical rod via a linear bearing.

6. The wave generator as described in claim 1, characterized in that, The dielectric disk is connected to the inner wall of the housing via a bearing.

7. The wave generator as described in claim 1, characterized in that, The shell is made of acrylic; the surface of the shell is coated with an anti-corrosion coating, and the sealing part uses a silicone rubber O-ring to prevent seawater from seeping in.

8. The wave generator as described in claim 1, characterized in that, Also includes: An energy management unit is mounted on the housing; The input terminal of the energy management unit is electrically connected to the copper electrode or copper coil on the electrode disk, respectively. The energy management unit includes: a supercapacitor array, a lithium battery charging module, a DC-DC voltage regulator chip, an energy time-sharing scheduling circuit, and a low-power power management chip system; It rectifies, stores, and regulates the input electrical energy to achieve a stable power output.

9. The wave generator as described in claim 1, characterized in that, The screw rod can be a double-pitch structure, a spherical lead screw, or a linear guide.

10. The wave generator as described in claim 4, characterized in that, The mass of the gravity ball is 220 grams; the length of the spiral rod is 120 millimeters.

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