Wave energy power generation device

Abstract

The invention discloses a wave energy power generation device which comprises a floating body, a power assembly, a potential energy power generator and a fluid power generator. The floating body is provided with an annular channel and a fluid channel, the fluid channel extends in the direction intersecting with the plane where the annular channel is located, and the two ends in the extending direction are open. The power assembly comprises a movable part, a rolling part and blades, the movable part is arranged in the annular channel and can move in the circumferential direction of the annular channel, the rolling part is rotationally arranged on the movable part and abuts against the inner wall of the annular channel in a rolling and pressing mode, and the blades are rotationally arranged in the fluid channel; a rotor of the potential energy generator is connected with the rolling part; the fluid generator is arranged on the floating body, and a rotor is connected with the paddle. According to the scheme, energy of waves in the horizontal direction and the vertical direction can be utilized at the same time, and the utilization efficiency of the wave energy is improved; paddle power generation and movable part power generation are sequentially adopted in the two directions, the diversified power generation mode is achieved, and the complex sea surface environment can be dealt with.

Description

Technical Field

[0001] The present invention relates to the technical field of wave energy power generation, and in particular to a wave energy power generation device. Background Art

[0002] Wave energy is a type of ocean energy that is vast, easily accessible, clean, and pollution-free. In recent years, wave energy has gradually become a focus of renewable energy development and utilization.

[0003] Publication number CN203251210U discloses a buoy-type wave energy power generation device. When the power generation device is in the sea water, it forms a tumbler power generation model, ensuring that the buoy power generation device will not roll 360 degrees while rising and falling with the waves on the sea surface, thereby avoiding damage to the core power generation device inside; and when the buoy rises and falls with the wave energy, the magnetic block suspended in the power generation device will be pulled up and down by the tension spring due to the action of force, and the tension spring will pull the magnetic block up and down, making a movement of cutting the magnetic lines of force and continuously generating an induced electromotive force.

[0004] However, in order to simultaneously utilize the vertical and horizontal energy of waves, the above-mentioned power generation devices are usually arranged in two groups crosswise. The wave energy utilization rate is improved by cooperating with the two crosswise sets of tension springs and magnetic blocks. The power generation form is relatively simple, which is not conducive to coping with complex sea surface environments. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and propose a wave energy power generation device to solve the technical problem that in the prior art, in order to simultaneously utilize the vertical and horizontal energy of waves, the above-mentioned power generation device is usually arranged in two groups crosswise, and the wave energy utilization rate is improved by cooperating with the two cross-arranged groups of tension springs and magnetic blocks. The power generation form is relatively single, which is not conducive to coping with complex sea surface environments.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a wave energy power generation device, comprising: A floating body having an annular channel and a fluid channel, wherein the fluid channel extends in a direction intersecting the plane where the annular channel is located, and has two ends open in the extending direction; A power assembly comprising a movable portion, a rolling portion, and a paddle, wherein the movable portion is disposed in the annular channel and is movable along the circumference of the annular channel, the rolling portion is rotatably disposed on the movable portion and rolls against the inner wall of the annular channel, and the paddle is rotatably disposed in the fluid channel; a potential energy generator, disposed on the movable portion, with a rotor connected to the rolling portion; and The fluid generator is arranged on the floating body, and the rotor of the fluid generator is connected to the blades.

[0007] In some embodiments, the wave energy power generation device further comprises a guide portion, which is mounted on the floating body and has a guide channel, the guide channel being connected to one end of the fluid channel, and the inner diameter of the guide channel is gradually expanded in a direction away from the fluid channel.

[0008] In some embodiments, two guide parts are provided, and the guide channels of the two guide parts are respectively connected to the two ends of the fluid channel.

[0009] In some embodiments, the wave energy power generation device further comprises a counterweight portion, which is installed on one of the two guide portions, and makes the center of gravity of the wave energy power generation device fall on the guide portion provided with the counterweight portion, and the center of gravity is spaced apart from the movable portion along the extension direction of the fluid channel.

[0010] In some embodiments, the blades are provided in plurality, the plurality of blades are spaced apart along the extension direction of the fluid channel, and the axes of the plurality of blades are arranged in sequence at an angle along the circumference of the fluid channel, the fluid generators are provided in plurality corresponding to the blades, and the plurality of blades correspond one-to-one to the plurality of fluid generators; and / or, There are two fluid generators, and the rotors of the two fluid generators are respectively connected to the two ends of the blade in the axial direction.

[0011] In some embodiments, the float has a cavity, and an inner wall of the cavity has an axial hole communicating with the fluid channel; The fluid generator is installed on the inner wall of the cavity, and its rotor extends into the fluid channel through the shaft hole and is connected to the blades.

[0012] In some embodiments, the plane where the annular channel is located coincides with a horizontal plane, and the extending direction of the fluid channel is the same as the axial direction of the annular channel.

[0013] In some embodiments, the annular channel surrounds the fluid channel, and / or the annular channel is located inside the float.

[0014] In some embodiments, the wave energy power generation device further comprises a conductive slide rail and an annular conductor. The conductive slide rail is mounted on the movable portion and connected to the transmission line of the potential energy generator. The annular conductor is looped in the annular channel and is slidably abutted by the conductive slide rail.

[0015] In some embodiments, the rolling portion includes a plurality of rollers, each of which is rotatably mounted on the movable portion and respectively rolls against a plurality of inner walls of the annular channel; The rotor of the potential energy generator is connected to the roller.

[0016] Compared to the prior art, the wave energy power generation device provided by the present invention, taking the example of aligning the plane of the annular channel with the horizontal plane, can convert the horizontal wave energy into kinetic energy of the movable portion moving within the annular channel when the floating body is driven by the horizontal wave energy, thereby driving the rolling portion to rotate about its own axis, and driving the rotor of the potential energy generator to rotate via the rolling portion, thereby utilizing the horizontal wave energy. At the same time, because the extension direction of the fluid channel intersects with the plane of the annular channel, when the floating body is driven by the vertical wave energy, the wave can pass through the fluid channel, thereby driving the blades to rotate, and the blades drive the fluid generator to rotate, thereby utilizing the vertical wave energy.

[0017] This solution can simultaneously utilize wave energy in both horizontal and vertical directions, improving its efficiency. Furthermore, by sequentially utilizing blade power generation and the movable portion for power generation in both directions, it achieves diversified power generation, facilitating the handling of complex sea surface environments. Furthermore, the movable portion acts as a buffer and absorbs energy during movement, enhancing the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a wave energy power generation device provided by an embodiment of the present invention; Figure 2 yes Figure 1 a cross-sectional view of a wave energy power generation device; Figure 3 yes Figure 2 A partial schematic diagram of a medium wave energy power generation device; Figure 4 yes Figure 2 Schematic diagram of two sets of blades and fluid generator; Figure 5 yes Figure 1 Schematic diagram of the two guide parts; Figure 6 yes Figure 2 Schematic diagram of the movable part, rolling part and ring conductor; Figure 7 yes Figure 6 Schematic diagram of the movable and rolling parts.

[0019] Description of reference numerals: 1. Floating body; 1a. Annular channel; 1b. Fluid channel; 1c. Cavity; 1d. Annular groove; 2. Movable part; 21. Conductive slide rail; 3. Rolling part; 31. Roller; 4. Blade; 5. Fluid generator; 6. Potential energy generator; 7. Guide part; 7a. Guide channel; 8. Annular conductor; 9. Center of gravity. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] In order to solve the technical problem that in the prior art, in order to simultaneously utilize the vertical and horizontal energy of waves, the above-mentioned power generation devices are usually cross-arranged into two groups, and the wave energy utilization rate is improved by cooperating with the two cross-arranged groups of tension springs and magnetic blocks, but the power generation form is relatively single, which is not conducive to coping with complex sea surface environments. The present invention provides a wave energy power generation device that can simultaneously utilize the wave energy in the horizontal and vertical directions, thereby improving the utilization efficiency of wave energy.

[0022] See also Figures 1 to 3 , Figures 1 to 3 This is a structural schematic diagram of a wave energy power generation device in one embodiment of the present invention, which includes a floating body 1, a power assembly, a potential energy generator 6 and a fluid generator 5; the floating body 1 has an annular channel 1a and a fluid channel 1b, the fluid channel 1b extends in a direction intersecting the plane where the annular channel 1a is located, and both ends in the extension direction are open; the power assembly includes a movable part 2, a rolling part 3 and a blade 4, the movable part 2 is arranged in the annular channel 1a and can move along the circumferential direction of the annular channel 1a, the rolling part 3 is rotatably arranged on the movable part 2, and rolls against the inner wall of the annular channel 1a, the blade 4 is rotatably arranged in the fluid channel 1b, and can be driven to rotate by the fluid flowing through the fluid channel 1b; the potential energy generator 6 is arranged on the movable part 2, and its rotor is connected to the rolling part 3; the fluid generator 5 is arranged on the floating body 1, and its rotor is connected to the blade 4.

[0023] In the wave energy power generation device provided by the present invention, taking the example of aligning the plane where the annular channel 1a is located with the horizontal plane, when the floating body 1 is driven by the horizontal energy of the waves, the horizontal energy of the waves can be converted into kinetic energy of the movable portion 2 moving within the annular channel 1a, thereby driving the rolling portion 3 to rotate about its own axis, and driving the rotor of the potential energy generator 6 to rotate via the rolling portion 3, thereby realizing the utilization of the horizontal energy of the waves. At the same time, because the extension direction of the fluid channel 1b intersects with the plane where the annular channel 1a is located, when the floating body 1 is driven by the vertical energy of the waves, the waves can pass through the fluid channel 1b, thereby driving the blades 4 to rotate, and the blades 4 drive the fluid generator to rotate, realizing the utilization of the vertical energy of the waves.

[0024] In this way, this solution can simultaneously utilize wave energy in both horizontal and vertical directions, improving wave energy utilization efficiency. Furthermore, by sequentially utilizing blades 4 and movable portion 2 for power generation in both directions, a diversified power generation method is achieved, facilitating the handling of complex sea surface environments. Furthermore, movable portion 2 acts as a buffer and absorbs energy during movement, enhancing the stability of the device.

[0025] It should be noted that the float 1 can be a capsule, box or shell having an annular channel 1a and a fluid channel 1b. Specifically, in this embodiment, the float 1 is configured as a shell having the annular channel 1a and the fluid channel 1b.

[0026] In addition, it should be understood that since the energy of the wave in the longitudinal direction is greater than the energy in the transverse direction, and the efficiency of the blade 4 in converting wave energy is higher than the efficiency of the movable part 2 in converting waves, in order to further improve the utilization rate of wave energy, in the scheme, the plane where the annular channel 1a is located is overlapped with the horizontal plane, and the extension direction of the fluid channel 1b is set in the vertical direction.

[0027] In one embodiment, see Figure 2 and Figure 4 The wave energy power generation device further includes a guide portion 7, which is mounted on the floating body 1 and has a guide channel 7a, which is connected to one end of the fluid channel 1b, and whose inner diameter is gradually expanded in a direction away from the fluid channel 1b.

[0028] In this embodiment, when waves enter the fluid channel 1b from the guide portion 7, the inner diameter of the guide channel 7a gradually decreases in the direction approaching the fluid channel 1b, which accelerates the flow rate of the waves toward the fluid channel 1b, thereby increasing the number of times the waves drive the blades 4 to rotate, further improving the efficiency of utilizing wave energy.

[0029] It should be noted that the air guide 7 can be configured as a air guide cover, air guide seat, or air guide box having an air guide channel 7a. Specifically, in this embodiment, the air guide 7 is configured as an air guide cover, which is connected to the floating body 1 via bolts and a flange, with a sealing ring disposed therebetween. The blades 4 are turbine blades.

[0030] In one embodiment, see Figure 2 and Figure 5 There are two guide parts 7, and the guide channels 7a of the two guide parts 7 are respectively connected to the two ends of the fluid channel 1b.

[0031] In this embodiment, as the device rises and falls in the seawater, when an incoming wave causes the device to approach a wave crest, the inertial device does not directly float upward with the seawater. This inertia difference causes air or seawater to enter the fluid channel 1b through the gradually narrowing lower guide channel 7a, causing the paddles 4 to rotate and generate electricity. Similarly, when the device is about to fall in the trough of the wave, the same inertia difference occurs, causing seawater to enter the fluid channel 1b through the gradually narrowing upper guide channel 7a, causing the paddles 4 to rotate and generate electricity. This allows the device to utilize wave energy even as it follows the waves, further improving energy conversion efficiency.

[0032] It should be noted that, in one embodiment, the upper guide portion 7 is set to be longer so as to utilize the gravitational potential energy of the waves during the falling process and the gradual contraction process of the guide channel 7a to make the seawater flow faster through the blades 4.

[0033] In one embodiment, the wave energy power generation device further includes a counterweight portion, which is installed on one of the two guide portions 7, and the center of gravity 9 of the wave energy power generation device falls on the guide portion 7 provided with the counterweight portion, and the center of gravity 9 is spaced apart from the movable portion 2 along the extension direction of the fluid channel 1b.

[0034] In this embodiment, the center of gravity 9 of the device is placed on one of the guide portions 7, which is located at the bottom of the device, ensuring the stability of the device in seawater. Furthermore, since the center of gravity 9 is vertically spaced from the movable portion 2, the turning force arm of the movable portion 2 is increased, thereby improving the rotation range of the movable portion 2.

[0035] It should be noted that the counterweight portion can be provided as a counterweight block, a counterweight bar or other forms on the guide portion 7. Specifically, in this solution, the counterweight portion is provided integrally with the lower guide portion 7, and the length of the lower guide portion 7 is increased so that the center of gravity 9 is located in the lower guide portion 7.

[0036] In one embodiment, a plurality of blades 4 are provided, and the plurality of blades 4 are arranged at intervals along the extension direction of the fluid channel 1b, and the axes of the plurality of blades 4 are arranged in sequence at angles along the circumference of the fluid channel 1b, and a plurality of fluid generators 5 are provided corresponding to the blades 4, and the plurality of blades 4 correspond one-to-one to the plurality of fluid generators 5.

[0037] In this embodiment, multiple blades 4 are arranged vertically so that the fluid flowing through fluid channel 1b simultaneously drives the blades 4 to rotate, further improving the device's efficiency in utilizing wave energy. Furthermore, the axial directions of the blades 4 are arranged at angles along the circumference of fluid channel 1b, ensuring uniform distribution of the blades 4 within fluid channel 1b and improving stability.

[0038] Specifically, the blades 4 can be provided in two, three, four, or other numbers. Specifically, in this embodiment, two blades 4 are provided, with the two blades 4 arranged at right angles to each other. Furthermore, each blade 4 is connected to a fluid generator 5 at both ends of the axial direction, further improving the stability of the device and the utilization of wave energy.

[0039] In one embodiment, the float 1 has a cavity 1c, the inner wall of the cavity 1c has an axial hole connected to the fluid channel 1b; the fluid generator 5 is installed on the inner wall of the cavity 1c, and its rotor extends into the fluid channel 1b through the axial hole and is connected to the blades 4.

[0040] In this embodiment, the fluid generator 5 is placed in the cavity 1c, isolating the generator from seawater and extending its service life. It should be noted that a sealing structure is provided on the side of the shaft hole near the cavity 1c. This sealing structure ensures the normal rotation of the generator rotor while preventing seawater from entering the cavity 1c through the shaft hole. The specific structure and principle of this structure are based on existing technology and will not be elaborated here.

[0041] In one embodiment, the plane where the annular channel 1a is located coincides with the horizontal plane, and the extending direction of the fluid channel 1b is the same as the axial direction of the annular channel 1a.

[0042] In this embodiment, the annular channel 1a is placed on a horizontal plane to convert the horizontal energy of the waves through the movable portion 2, and the fluid channel 1b is placed in a vertical direction to convert the vertical energy of the waves through the blades 4. Specifically, this is achieved by placing the center of gravity 9 on the extension line of the fluid channel 1b.

[0043] In one embodiment, the annular channel 1 a surrounds the fluid channel 1 b , and the annular channel 1 a is located inside the float 1 .

[0044] In this embodiment, the annular channel 1a surrounds the fluid channel 1b, making the device relatively compact and improving the stability of the device. In addition, the annular channel 1a is built into the float 1, which also prevents the potential energy motor from relying on external seawater, thereby extending its service life.

[0045] In one embodiment, see Figure 6 and Figure 7 The wave energy power generation device also includes a conductive slide rail 21 and a ring conductor 8. The conductive slide rail 21 is installed on the movable part 2 and is connected to the transmission line of the potential energy generator 6. The ring conductor 8 is arranged in the ring channel 1a and is used for the conductive slide rail 21 to slide against.

[0046] In this embodiment, the movable portion 2 can ensure that the conductive rail 21 is always connected to the annular conductor 8 during its circumferential movement along the annular channel 1a, thereby enabling the output of electrical energy from the potential energy generator 6 via the annular conductor 8. It should be understood that the above structure is similar to the transmission rack of a high-speed railway. Its specific structure and principles are prior art and will not be elaborated here.

[0047] It should be noted that in this embodiment, cavity 1c also surrounds fluid channel 1b, and annular channel 1a is located within cavity 1c. Furthermore, annular channel 1a is provided with an annular groove 1d that connects to cavity 1c. Annular conductor 8 is connected to multiple connecting conductors along its circumference, extending to conductive posts on the outer wall of fluid channel 1b.

[0048] Furthermore, it should be noted that the movable portion 2 can be configured as a slider, a movable seat, or a special-shaped structure. The rolling portion 3 can be configured as a roller 31, a drum, or a ball bearing. Specifically, in this embodiment, the movable portion 2 is configured as a movable seat in an arc shape, while the rolling portion 3 is configured as a roller 31.

[0049] In one embodiment, the rolling portion 3 includes multiple sets of rollers 31 , which are rotatably mounted on the movable portion 2 and respectively roll against multiple inner walls of the annular channel 1 a ; the rotor of the potential energy generator 6 is connected to the rollers 31 .

[0050] In this embodiment, each side of the movable portion 2 is separated from the inner wall of the annular channel 1a by rollers 31, enhancing the flexibility of the movable portion 2 within the annular channel 1a. It should be noted that in this embodiment, the annular channel 1a has a rectangular cross-section in the radial direction, and accordingly, four groups of rollers 31 are provided. Each group contains at least one roller 31, and multiple rollers 31 in the same group are spaced apart along the direction of movement of the movable portion 2.

[0051] In addition, it should be understood that the radius of the roller 31 near the center line of the device is smaller than the radius of the roller 31 far from the center line. Assume that the distance between the roller 31 near the center line and the center line is R1, and the radius is r1; the distance between the roller 31 far from the center line and the center line is R2, and the radius is r2. In order to ensure that the movable part 2 can move around the circular track, it is necessary to ensure that after the roller 31 moves around the track for one circle, the number of circles rotated by the inner and outer rollers 31 is equal. Therefore, it can be obtained that the radius of the roller 31 and the distance from the center line satisfy R1 / r1=R2 / r2.

[0052] Specifically, in this solution, the potential energy generator 6 and the roller 31 are transmitted through two gears, and the outer diameter of the gear on the rotor of the potential energy generator 6 is smaller than the outer diameter of the gear on the shaft of the roller 31 .

[0053] It should be understood that, in this solution, the electrical energy generated by the movable part 2 which is in constant motion is collected by arranging a wire assembly inside the device.

[0054] In one embodiment, the conductor assembly consists of two parts. One part contacts the hollow conductive post within the housing. This part, in its entirety, is a ring-shaped conductor 8 that maintains constant contact with the conductive portion of the movable portion 2. Ring-shaped conductor 8 forms a closed loop, so electricity from the movable portion 2 can be conducted through ring-shaped conductor 8 without forming a loop. Furthermore, a rigid rod can be provided corresponding to ring-shaped conductor 8, connected to the cylindrical wall and ring-shaped conductor 8, to secure the ring-shaped conductor 8 and provide greater stability for the entire device.

[0055] The other part is the conductive part in the movable part 2, which is connected to the potential energy generator 6 and the conductive slide rail 21 through some wires, so that the electricity generated by the potential energy generator 6 driven by the roller 31 on the movable part 2 can be conducted out, and the electricity is conducted to the cross bar at the top of the conductive slide rail 21 on the movable part 2. The cross bar is made of conductive material, so it conducts electricity to the wire in contact with the conductive column through contact with the annular wire 8, and finally outputs it through the conductive column for storage and utilization.

[0056] The wires can be secured together by bonding. A hole is formed in the sidewall of the annular groove 1d, through which a rigid rod for securing the annular wire 8 can be inserted to secure the annular wire 8. Furthermore, additional wires can be added to direct the electricity generated by the two components to a fixed location. If the device is sufficiently large, an internal power conversion device can be incorporated. Internal wires can be used to conduct discontinuous electricity to the power conversion device, converting it into stable electricity for further use.

[0057] In another embodiment, an energy storage device can be set up in the device, and energy is transmitted to the energy storage device through conversion. When the energy storage device is fully charged, the energy storage device is recovered and replaced with a new energy storage device. The device is then put back into the sea, and the new energy storage device continues to store electricity. The old fully charged energy storage device is taken out and used in some places on the coast that need electricity. A cycle is determined according to the size of the energy storage device, and the replacement is repeated continuously to continuously provide electricity to the shore.

[0058] In this embodiment, the floating body 1 is provided as a shell having a movable door that can be opened and closed. The movable door is opened and closed by bolts, and a sealing ring is provided between the movable door and the main body of the shell.

[0059] Furthermore, in one embodiment, both the guide portion 7 and the float 1 are constructed of corrosion-resistant, water-insulating materials, secured to the float 1 via rivets inserted through holes in the guide portion 7. Four potential energy generators 6 are housed within the movable portion 2. The movable portion 2 is constructed of a material with a certain mass, and the internal potential energy generators 6 serve as counterweights for the movable portion 2, improving its efficiency and reducing costs.

[0060] The fluid generator 5 can be adhered to the upper and lower walls of the inner wall of the shell with a relatively strong adhesive material, or the fluid generator 5 can be wrapped with a stainless steel sheet, and the horizontal displacement can be limited by adding a steel sheet, and then nailed to the inner wall of the shell with a pushpin through the hole of the stainless steel sheet.

[0061] In order to better understand the present invention, the following Figures 1 to 7 The technical solution of the present invention is described in detail: When the entire device is placed in the ocean, the energy generated by the waves in the vertical direction drives the blades 4 to rotate through the air flow or seawater flow, and then drives the fluid generator 5 to generate electricity. The electricity generated by the fluid generator 5 can be transmitted through wires and stored or used.

[0062] The horizontal energy of the waves will cause the entire device to tilt. Since the center of gravity 9 of the entire device can be changed by adjusting the lower structure to change the mass, the center of gravity 9 is controlled to be located at the guide part 7 below. Therefore, when the wave passes through the device, the device is subjected to a horizontal force. The horizontal force generates a large clockwise torque on the distance of the center of gravity 9 of the device, causing the entire device to rotate and tilt. In this process, the gravitational potential energy of the movable part 2 changes, causing it to rotate, which in turn causes the roller 31 to rotate, and in turn drives the two gears to rotate, thereby causing the rotor of the potential energy generator 6 in the movable part 2 to rotate and generate electricity.

[0063] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A wave energy power generation device, characterized in that: include: A floating body having an annular channel and a fluid channel, wherein the fluid channel extends in a direction intersecting the plane where the annular channel is located, and has two ends open in the extending direction; A power assembly comprising a movable portion, a rolling portion, and a paddle, wherein the movable portion is disposed in the annular channel and is movable along the circumference of the annular channel, the rolling portion is rotatably disposed on the movable portion and rolls against the inner wall of the annular channel, and the paddle is rotatably disposed in the fluid channel; a potential energy generator, disposed on the movable portion, with a rotor connected to the rolling portion; and The fluid generator is arranged on the floating body, and the rotor of the fluid generator is connected to the blades.

2. The wave energy power generation device according to claim 1, characterized in that: The wave energy power generation device further includes a guide portion, which is mounted on the floating body and has a guide channel. The guide channel is connected to one end of the fluid channel, and its inner diameter is gradually expanded in a direction away from the fluid channel.

3. The wave energy power generation device according to claim 2, characterized in that: There are two guide parts, and the guide channels of the two guide parts are respectively connected to the two ends of the fluid channel.

4. The wave energy power generation device according to claim 3, characterized in that: The wave energy power generation device further includes a counterweight portion, which is installed on one of the two guide portions, and enables the center of gravity of the wave energy power generation device to fall on the guide portion provided with the counterweight portion, and the center of gravity is spaced apart from the movable portion along the extension direction of the fluid channel.

5. The wave energy power generation device according to claim 1, characterized in that: There are a plurality of blades, and the plurality of blades are spaced apart along the extension direction of the fluid channel, and the axes of the plurality of blades are arranged in sequence at an angle along the circumference of the fluid channel, and the fluid generators are provided with a plurality of blades corresponding to the blades, and the plurality of blades correspond to the plurality of fluid generators one by one; and / or, There are two fluid generators, and the rotors of the two fluid generators are respectively connected to the two ends of the blade in the axial direction.

6. The wave energy power generation device according to claim 1, characterized in that: The float has a cavity, and the inner wall of the cavity has an axial hole communicating with the fluid channel; The fluid generator is installed on the inner wall of the cavity, and its rotor extends into the fluid channel through the shaft hole and is connected to the blades.

7. The wave energy power generation device according to claim 1, characterized in that: The plane where the annular channel is located coincides with the horizontal plane, and the extending direction of the fluid channel is the same as the axial direction of the annular channel.

8. The wave energy power generation device according to claim 1, characterized in that: The annular channel surrounds the fluid channel, and / or the annular channel is located inside the float.

9. The wave energy power generation device according to any one of claims 1 to 8, characterized in that: The wave energy power generation device further comprises a conductive slide rail and an annular conductor. The conductive slide rail is mounted on the movable portion and connected to the transmission line of the potential energy generator. The annular conductor is looped in the annular channel and is slidably abutted by the conductive slide rail.

10. The wave energy power generation device according to claim 1, characterized in that: The rolling portion includes a plurality of rollers, which are rotatably mounted on the movable portion and respectively roll against the plurality of inner walls of the annular channel; The rotor of the potential energy generator is connected to the roller.

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