Vortex-induced vibration power generation device utilizing ocean current energy

Abstract

The utility model discloses a vortex-induced vibration power generation device utilizing ocean current energy, which comprises two shells which are symmetrically arranged, a base is arranged outside the shells, a storage module and a first power generation assembly are arranged inside the shells, a rotating rod is arranged between the two shells, and the rotating rod is rotatably connected with the first power generation assembly. Two connecting rods perpendicular to the rotating rod are arranged on the rotating rod, the two connecting rods are slidably connected with the rotating rod, a telescopic rod is arranged between the two connecting rods, the two ends of the telescopic rod are slidably arranged on the connecting rods in the axial direction of the connecting rods, and a second power generation assembly is arranged between the telescopic rod and the connecting rods; a third power generation assembly is arranged in the telescopic rod, and the first power generation assembly, the second power generation assembly and the third power generation assembly are all electrically connected with the storage module. According to the device, a six-degree-of-freedom movement mode can be achieved, water flow cannot be blocked, multi-angle vortex excitation vibration power generation can be achieved by fully utilizing movement irregularity of the water flow, and the power generation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of vortex-induced vibration technology, specifically relating to a vortex-induced vibration power generation device that utilizes ocean current energy. Background Technology

[0002] Vortex-induced vibration is a phenomenon where a fluid flows around a bluff body, causing structural vibration due to the periodic shedding of vortices. For structures that need to maintain stability, vortex-induced vibration can disrupt the stability of the device and reduce its service life. Meanwhile, in regions with abundant energy resources such as wind and tidal currents, utilizing vortex-induced vibration for power generation is a current hot research area.

[0003] For example, in application number 2022112696600, the patent title is "A Vortex-Induced Vibration Power Generation Device." In this technical solution, the bluff bodies are all vertically arranged, and they can only accept the impact of water flow from the horizontal direction. At the same time, a base and a support plate are provided at the bottom of the bluff body. The base will isolate the impact of water flow from the vertical direction at the bottom, thus reducing the phenomenon of vortex-induced vibration of the bluff body. Meanwhile, although the support plate supporting the bluff body has a certain degree of elasticity, it is easy to exceed the elastic limit under the impact of water flow or strong wind, thereby producing plastic deformation, which will weaken the vibration capacity and also affect the supporting force of the support plate, ultimately failing to support the bluff body. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a vortex-induced vibration power generation device that utilizes ocean current energy, aiming to solve the problems in the prior art where the use of a support plate with specific elastic deformation leads to plastic deformation of the support plate; and the low power generation efficiency due to the lack of full utilization of vortex-induced vibration for power generation.

[0005] This utility model is achieved through the following technical solution:

[0006] A vortex-induced vibration power generation device utilizing ocean current energy includes two symmetrically arranged shells. A base is provided outside each shell, and a storage module and a first power generation component are disposed inside each shell. A rotating rod is disposed between the two shells and rotatably connected to the first power generation component. Two connecting rods perpendicular to the rotating rod are disposed on the rotating rod, and both connecting rods are slidably connected to the rotating rod. A telescopic rod is disposed between the two connecting rods, with both ends of the telescopic rod slidably disposed on the connecting rod along the axial direction of the connecting rod. A second power generation component is disposed between the telescopic rod and the connecting rod, and a third power generation component is disposed inside the telescopic rod. The first, second, and third power generation components are all electrically connected to the storage module.

[0007] To optimize the above technical solution, the specific measures also include:

[0008] Furthermore, each of the two housings has a snap-fit ​​groove on a side that is far apart from each other, and the base snaps into the snap-fit ​​groove of one of the housings.

[0009] Furthermore, the rotating rod is provided with two mutually symmetrical sliding grooves, the direction of the sliding grooves being consistent with the axial direction of the rotating rod. Each of the two sliding grooves is provided with a guide rod parallel to the rotating rod. The two connecting rods are respectively provided on the guide rods in the two sliding grooves, and the direction of the connecting rods is perpendicular to the direction of the guide rods.

[0010] Furthermore, the first power generation component includes a support disk, a drive gear, a driven gear, and a motor. The support disk is disposed inside the base. The drive gear and the driven gear mesh with each other. The rotating rod has protrusions at both ends. The drive gear is sleeved on the protrusions. The driven gear is disposed inside the support disk. The fixed end of the motor is disposed inside the base. The output end of the motor passes through the support disk and is connected to the driven gear.

[0011] Furthermore, the rotating rod has a protruding edge on the side wall near the support plate, and the support plate has an arc-shaped groove. The protruding edge is slidably disposed in the arc-shaped groove, and a rotating spring is disposed on both sides of the protruding edge in the arc-shaped groove. The protruding edge can slide in the arc-shaped groove under the drive of the rotating spring.

[0012] Furthermore, the second power generation component includes a horizontal coil assembly and a horizontal magnet. The telescopic rod has a through groove, and an annular groove is provided inside the through groove. The horizontal coil assembly is disposed in the annular groove. The connecting rod is provided with a plurality of mutually spaced limiting blocks. The horizontal magnet is located inside the connecting rod between two adjacent limiting blocks. The connecting rod passes through the through groove, and the through groove is slidably connected to the connecting rod.

[0013] Furthermore, a plurality of balls are arranged circumferentially on the side wall of the through groove near the connecting rod, and a plurality of slide rails are arranged circumferentially on the connecting rod, with the balls slidably disposed within the slide rails.

[0014] Furthermore, a compression spring is provided on the side of the limiting block on the outer side of both ends of the connecting rod near the telescopic rod, and the compression spring is connected to the adjacent telescopic rod.

[0015] Furthermore, the third power generation component includes a vertical magnet and a vertical coil assembly. The telescopic rod includes two sleeves, sleeve one and sleeve two, which are symmetrically spaced apart. Each sleeve one and sleeve two has a telescopic groove on its side closest to each other. The vertical coil assembly is disposed on the inner wall of the telescopic groove. The vertical magnet is disposed in the two telescopic grooves. A connecting spring is disposed between the vertical magnet and the telescopic groove. The vertical magnet can slide back and forth within sleeve one and sleeve two.

[0016] Furthermore, magnet one and magnet two are respectively provided on the side walls of sleeve one and sleeve two that are close to each other, and magnet one and magnet two repel each other.

[0017] The beneficial effects of this utility model are:

[0018] Compared to existing technologies, the vortex-induced vibration power generation device utilizing ocean current energy proposed in this application can perform rotational motion in the vertical plane, vertical up-and-down motion in the vertical plane, and horizontal motion in the horizontal plane, achieving a six-degree-of-freedom motion mode. This device does not obstruct the water flow and can fully utilize the irregularity of the water flow to achieve vortex-induced vibration power generation at multiple angles, thus improving power generation efficiency. Furthermore, the second and third power generation components of this device are equipped with various springs, which can increase the motion frequency of the corresponding components and extend the corresponding motion time, further improving power generation efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a vortex-induced vibration power generation device that utilizes ocean current energy according to this utility model.

[0020] Figure 2 This is a schematic diagram of the planar structure of a vortex-induced vibration power generation device that utilizes ocean current energy according to this utility model.

[0021] Figure 3 This is the present invention. Figure 2 A cross-sectional view of the middle section of the structure.

[0022] Figure 4 This is the present invention. Figure 3 A schematic diagram of the internal structure of the middle section.

[0023] Figure 5 This is the present invention. Figure 4 A schematic diagram of the internal structure of the middle shell.

[0024] Figure 6 This is the present invention. Figure 4 A partial structural diagram of the rotating rod.

[0025] The attached figures are labeled as follows:

[0026] Housing 10, rotating rod 20, protrusion 21, protruding edge 22, sliding groove 23, guide rod 24, first power generation component 30, support plate 31, arc groove 311, driving gear 32, driven gear 33, motor 34, rotating spring 35, second power generation component 40, horizontal coil group 41, horizontal magnet 42, limiting block 43, ball 44, compression spring 45, third power generation component 50, vertical magnet 51, vertical coil group 52, connecting spring 53, magnet one 54, magnet two 55, storage module 60, connecting rod 70, slide rail 71, telescopic rod 80, sleeve one 81, sleeve two 82, through groove 83, annular groove 84, telescopic groove 85, base 90. Detailed Implementation

[0027] To clarify the technical solution and working principle of this utility model, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] This utility model provides, for example Figure 1-6 The device shown is a vortex-induced vibration power generation device that utilizes ocean current energy. It includes two symmetrically arranged shells 10 for supporting the load; a rotating rod 20 and a first power generation component 30 for converting the rotational kinetic energy of the rotating rod 20 into electrical energy; a second power generation component 40 and a third power generation component 50 for converting the vibration generated by vortex-induced vibration into electrical energy; and a storage module 60 for storing electrical energy.

[0029] A base 90 is provided on the outside of the housing 10. Each of the two housings 10 has a snap-fit ​​groove on its opposite side. The base 90 snaps into the snap-fit ​​groove of one of the housings 10. This device can be placed in different flowing media, such as air or water, according to specific needs. The base 90 is used to connect with other equipment or can be placed independently. The base 90 can be switched between the two housings 10, or the base 90 can be connected to both housings. The specific setting method can be selected according to actual needs. At the same time, the weight of the base 90 can be set as needed to ensure the stability of the entire device.

[0030] A first power generation component 30 is provided inside the housing 10, and a rotating rod 20 is provided between the two housings 10. The rotating rod 20 is rotatably connected to the first power generation component 30. When the rotating rod 20 rotates, it can convert rotational kinetic energy into electrical energy.

[0031] The first power generation component 30 includes a support disk 31, a drive gear 32, a driven gear 33, and a motor 34. The support disk 31 is disposed inside the base 90. The drive gear 32 and the driven gear 33 mesh with each other. Protrusions 21 are provided at both ends of the rotating rod 20. The drive gear 32 is sleeved on the protrusions 21. The driven gear 33 is disposed inside the support disk 31. The fixed end of the motor 34 is disposed inside the base 90. The output end of the motor 34 passes through the support disk 31 and is connected to the driven gear 33.

[0032] Considering that the flow direction of the medium in the environment is irregular, a protruding edge 22 is provided on the side wall of the rotating rod 20 near the support plate 31, and an arc-shaped groove 311 is provided on the support plate 31. The protruding edge 22 is slidably disposed in the arc-shaped groove 311. Rotating springs 35 are provided on both sides of the protruding edge 22 in the arc-shaped groove 311. The protruding edge 22 can slide in the arc-shaped groove 311 under the drive of the rotating springs 35. The rotating springs 35 enable the protruding edge 22 to achieve reciprocating motion, thereby achieving continuous power generation. At the same time, the rotating springs 35 will accelerate the degree of reciprocating motion.

[0033] The power generation process of the first power generation component 30 is as follows: When the medium acts on the rotating rod 20, it drives the rotating rod 20 to rotate, which in turn drives the protruding edge 22 to rotate within the arc-shaped groove 311. During the reciprocating motion, the protruding edge 22 compresses the rotating springs 35 on both sides, increasing the amplitude and duration of the rotation of the rotating rod 20. The rotation of the rotating rod 20 sequentially drives the driving gear 32, the driven gear 33, and the motor 34 to rotate, thereby generating electricity. At the same time, when the medium flows through the rotating rod 20, vortex-induced vibration is generated, which also increases the degree of rotation of the rotating rod 20.

[0034] To maximize the utilization of vortex-induced vibration, two connecting rods 70 perpendicular to the rotating rod 20 are provided on the rotating rod 20. Both connecting rods 70 are slidably connected to the rotating rod 20. A telescopic rod 80 is provided between the two connecting rods 70. The two ends of the telescopic rod 80 are slidably provided on the connecting rod 70 along the axial direction of the connecting rod 70. A second power generation component 40 is provided between the telescopic rod 80 and the connecting rod 70. A third power generation component 50 is provided inside the telescopic rod 80. The first power generation component 30, the second power generation component 40 and the third power generation component 50 are all electrically connected to the storage module 60.

[0035] Meanwhile, two symmetrical sliding grooves 23 are provided on the rotating rod 20. The direction of the sliding grooves 23 is consistent with the axis of the rotating rod 20. Guide rods 24 parallel to the rotating rod 20 are provided in both sliding grooves 23. Two connecting rods 70 are respectively provided on the guide rods 24 in the two sliding grooves 23. The direction of the connecting rods 70 is perpendicular to the direction of the guide rods 24. The sliding grooves 23 can ensure that the two connecting rods 70 can move up and down.

[0036] The second power generation component 40 includes a horizontal coil assembly 41 and a horizontal magnet 42. A through groove 83 is formed on the telescopic rod 80, and an annular groove 84 is provided inside the through groove 83. The horizontal coil assembly 41 is disposed in the annular groove 84. Multiple spaced-apart limiting blocks 43 are provided on the connecting rod 70. The horizontal magnet 42 is located inside the connecting rod 70 between two adjacent limiting blocks 43. The connecting rod 70 passes through the through groove 83, and the through groove 83 is slidably connected to the connecting rod 70. To reduce the frictional resistance when the connecting rod 70 and the telescopic rod 80 move relative to each other, a number of ball bearings 44 are circumferentially arranged on the side wall of the through groove 83 near the connecting rod 70, and a number of slide rails 71 are circumferentially arranged on the connecting rod 70. The ball bearings 44 are slidably disposed in the slide rails 71. At the same time, a compression spring 45 is provided on the side of the limiting block 43 on the outer side of both ends of the connecting rod 70 near the telescopic rod 80. The compression spring 45 is connected to the adjacent telescopic rod 80.

[0037] The power generation process of the second power generation component 40 is as follows: On the one hand, when the rotating rod 20 rotates, centrifugal force is generated, and then the telescopic rod 80 slides away from the rotating rod 20 on the connecting rod 70, thereby causing the horizontal magnet 42 and the horizontal coil group 41 to cut magnetic field lines and generate electrical energy. Then, during the sliding process, the telescopic rod 80 will squeeze the compression spring 45, and the compression spring 45 will push the telescopic rod 80 to slide closer to the rotating rod 20, and so on. On the other hand, the driving force of the flowing medium will directly push the telescopic rod 80 to slide on the connecting rod 70. In addition, the eddy-induced vibration generated by the flowing medium passing through the telescopic rod 80 will also push the telescopic rod 80 to slide back and forth on the connecting rod 70, increasing the frequency of the horizontal magnet 42 and the horizontal coil group 41 cutting magnetic field lines.

[0038] The third power generation component 50 includes a vertical magnet 51 and a vertical coil assembly 52. ​​The telescopic rod 80 includes two symmetrically spaced sleeves, a first sleeve 81 and a second sleeve 82. Each sleeve 81 and the second sleeve 82 has a telescopic groove 85 on its adjacent side. The vertical coil assembly 52 is disposed on the inner wall of the telescopic groove 85. The vertical magnet 51 is disposed within the two telescopic grooves 85. A connecting spring 53 is provided between the vertical magnet 51 and the telescopic groove 85, allowing the vertical magnet 51 to slide back and forth within the sleeves 81 and 82. A magnet 54 and a magnet 55 are respectively disposed on the adjacent side walls of the sleeves 81 and 82, and these magnets repel each other. The repulsive force between the magnets drives the sleeves 81 and 82 away from each other.

[0039] The power generation process of the third power generation component 50 is as follows: Under the impact or vortex-induced vibration of the flowing medium, sleeve 1 81 and sleeve 2 82 will move in the same direction or in different directions. At this time, the connecting spring 53 inside sleeve 1 81 and / or sleeve 2 82 will be compressed. The connecting spring 53 will also drive the vertical magnet 51 to reciprocate between the two sleeves to cut magnetic field lines and generate electrical energy.

[0040] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within the protection scope of this application. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this application should be considered within the protection scope of this application.

Claims

1. A vortex-induced vibration power generation device using ocean current energy, characterized by: The device comprises two symmetrically arranged housings, each with a base on its exterior. A storage module and a first power generation component are housed inside each housing. A rotating rod is positioned between the two housings and rotatably connected to the first power generation component. Two connecting rods perpendicular to the rotating rod are mounted on the rotating rod, and both connecting rods are slidably connected to the rotating rod. A telescopic rod is positioned between the two connecting rods, with both ends slidably mounted on the connecting rod along its axial direction. A second power generation component is positioned between the telescopic rod and the connecting rod, and a third power generation component is housed inside the telescopic rod. All three power generation components are electrically connected to the storage module.

2. The vortex-induced vibration power generation device using sea current energy according to claim 1, characterized in that: Each of the two housings has a snap-fit ​​groove on one of their opposite sides, and the base snaps into the snap-fit ​​groove of one of the housings.

3. The vortex-induced vibration power generation device utilizing ocean current energy according to claim 2, characterized in that: The rotating rod is provided with two symmetrical sliding grooves, the direction of which is consistent with the axis of the rotating rod. Each of the two sliding grooves is provided with a guide rod parallel to the rotating rod. The two connecting rods are respectively provided on the guide rods in the two sliding grooves, and the direction of the connecting rods is perpendicular to the direction of the guide rods.

4. A vortex-induced vibration power generation device utilizing ocean current energy according to claim 3, characterized in that: The first power generation component includes a support plate, a drive gear, a driven gear, and a motor. The support plate is located inside the base. The drive gear and the driven gear mesh with each other. The rotating rod has protrusions at both ends. The drive gear is sleeved on the protrusions. The driven gear is located inside the support plate. The fixed end of the motor is located inside the base. The output end of the motor passes through the support plate and is connected to the driven gear.

5. A vortex-induced vibration power generation device utilizing ocean current energy according to claim 4, characterized in that: The rotating rod has a protruding edge on the side wall near the support plate, and the support plate has an arc-shaped groove. The protruding edge is slidably disposed in the arc-shaped groove, and a rotating spring is disposed on both sides of the protruding edge in the arc-shaped groove. The protruding edge can slide in the arc-shaped groove under the drive of the rotating spring.

6. A vortex-induced vibration power generation device utilizing ocean current energy according to claim 1, characterized in that: The second power generation component includes a horizontal coil assembly and a horizontal magnet. A through groove is provided on the telescopic rod, and an annular groove is provided inside the through groove. The horizontal coil assembly is located inside the annular groove. A plurality of mutually spaced limiting blocks are provided on the connecting rod. The horizontal magnet is located inside the connecting rod between two adjacent limiting blocks. The connecting rod passes through the through groove, and the through groove is slidably connected to the connecting rod.

7. A vortex-induced vibration power generation device utilizing ocean current energy according to claim 6, characterized in that: The through groove has a plurality of balls arranged circumferentially on the side wall near the connecting rod, and the connecting rod has a plurality of slide rails arranged circumferentially, with the balls slidably disposed within the slide rails.

8. A vortex-induced vibration power generation device utilizing ocean current energy according to claim 1, characterized in that: A compression spring is provided on the side of the limiting block on both outer sides of the connecting rod near the telescopic rod, and the compression spring is connected to the adjacent telescopic rod.

9. A vortex-induced vibration power generation device utilizing ocean current energy according to claim 1, characterized in that: The third power generation component includes a vertical magnet and a vertical coil assembly. The telescopic rod includes two sleeves, sleeve one and sleeve two, which are symmetrically spaced apart. Each sleeve one and sleeve two has a telescopic groove on its side that is close to each other. The vertical coil assembly is disposed on the inner wall of the telescopic groove. The vertical magnet is disposed in the two telescopic grooves. A connecting spring is disposed between the vertical magnet and the telescopic groove. The vertical magnet can slide back and forth in sleeve one and sleeve two.

10. A vortex-induced vibration power generation device utilizing ocean current energy according to claim 9, characterized in that: Magnet 1 and Magnet 2 are respectively provided on the side walls of sleeve 1 and sleeve 2 that are close to each other, and magnet 1 and magnet 2 repel each other.

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