A vertical contact separation wave energy harvesting structure

Abstract

This invention relates to a vertical contact separation wave energy harvesting structure, specifically comprising: a top cover and a bottom cover fixedly installed at the upper and lower ends of a cylinder; a rotating shaft fixedly installed in the central hole of the top and bottom covers; a linear bearing mounted on the shaft; the linear bearing fixedly connected to a buoyancy block; the buoyancy block and the sealing cover forming a sealed cavity; a third friction layer and a fourth friction layer fixedly bonded to the bottom of the sealed cavity; a mass ring, an upper plate, a first friction layer, and a second friction layer fixedly bonded to the upper end of a spring; and the lower end of the spring fixedly installed at the bottom of the sealed cavity. The advantages are: the overall structure can be fixedly installed on buoys and other marine targets; the cylindrical structure not only transforms the irregular motion of ocean waves into a single-degree-of-freedom motion along the axial direction, but also has excellent self-protection capabilities, increasing the structure's service life.

Description

Technical Field

[0001] This invention relates to a vertical contact separation wave energy harvesting structure, belonging to the field of wave energy harvesting technology. Background Technology

[0002] Despite decades of development, traditional electromagnetic ocean energy generation equipment still faces limitations in wave energy harvesting. The irregular motion and low frequency of waves severely hinder the widespread adoption of such equipment. Furthermore, the generally high equipment and installation / maintenance costs directly restrict the application of wave energy generation equipment based on electromagnetic principles.

[0003] Nano-triboelectric generators have attracted widespread attention across various industries due to their numerous application advantages. A novel energy harvesting technology based on triboelectricity and electrostatic induction, nano-triboelectric generators are characterized by their ability to effectively utilize low-frequency mechanical energy for power generation. This provides a new approach to ocean energy harvesting and is an indispensable part of the future recyclable energy field.

[0004] Nano-triboelectric generators are characterized by their simple structure and low cost, which makes them highly scalable. They also have low overall structural mass and are easy to install and maintain. They have already been applied in some self-powered fields and will provide more solutions in the future in fields such as marine engineering, machinery manufacturing, rail transportation, and aerospace. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a vertical contact separation wave energy harvesting structure that is inexpensive, simple in structure, stable and reliable, has a long working life and can be easily installed.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A vertical contact separation wave energy harvesting structure includes: a top cover (1) and a bottom cover (6) fixedly installed at the upper and lower ends of a cylinder (2); a shaft (10) fixedly installed in the center hole of the top cover (1) and the bottom cover (6); round holes for seawater and air to freely enter and exit are provided around the top cover (1) and the bottom cover (6); a linear bearing (7) is installed on the shaft (10); the linear bearing (7) is fixedly connected to the buoyancy block (5); the buoyancy block (5) and the sealing cover (9) form a sealed cavity; the third friction layer (401) and the fourth friction layer (402) are fixedly bonded to the bottom of the sealed cavity; the mass ring (301), the upper plate (302), the first friction layer (303) and the second friction layer (304) are fixedly bonded to the upper end of the spring (8); and the lower end of the spring (8) is fixedly installed at the bottom of the sealed cavity.

[0008] The advantages of this invention are: the overall structure can be fixedly installed on buoys and other marine targets; the cylindrical structure not only transforms the irregular motion of ocean waves into a single degree of freedom motion along the axial direction, but also has excellent self-protection capabilities, increasing the working life of the structure. Attached Figure Description

[0009] Figure 1 The cross-section of the wave energy harvesting structure is shown;

[0010] Figure 2 Showing a front view of the top cover.

[0011] Figure reference numerals:

[0012] 1. Top cover

[0013] 2. Cylinder

[0014] 301 Quality Ring

[0015] 302 board

[0016] 303 First Friction Layer

[0017] 304 second friction layer

[0018] 401 Third Friction Layer

[0019] 402 Fourth Friction Layer

[0020] 5 buoyancy blocks

[0021] 6. Bottom Cover

[0022] 7 Linear bearings

[0023] 8 springs

[0024] 9. Sealing cap

[0025] 10 axes Detailed Implementation

[0026] Figure 1 The cross-section of the wave energy harvesting structure is shown. The vertical contact separation wave energy harvesting structure described in this embodiment specifically includes: a top cover 1 and a bottom cover 6 are fixedly installed at the upper and lower ends of the cylinder 2; a shaft 10 is fixedly installed in the center hole of the top cover 1 and the bottom cover 6; the top cover 1 and the bottom cover 6 are provided with circular holes around their perimeter for seawater and air to freely enter and exit; a linear bearing 7 is installed on the shaft 10; the linear bearing 7 is fixedly connected to the buoyancy block 5; the buoyancy block 5 and the sealing cover 9 form a sealed cavity; the third friction layer 401 and the fourth friction layer 402 are fixedly bonded to the bottom of the sealed cavity; the mass ring 301, the upper plate 302, the first friction layer 303 and the second friction layer 304 are fixedly bonded to the upper end of the spring 8; and the lower end of the spring 8 is fixedly installed at the bottom of the sealed cavity.

[0027] Figure 2 The diagram shows a front view of the structure of the top cover 1, which is exactly the same as the bottom cover 6. Except for the circular hole in the center for mounting the shaft 10, there are circular holes on all four sides to allow seawater and air to enter and exit freely.

[0028] When the wave energy harvesting structure is in operation, it will be fixed on a floating platform or other water surface platform, with part of the structure submerged in seawater. The buoyancy block 5 can keep the internal structure on the water surface under the action of seawater. The rise and fall of the waves will cause the entire internal structure to rise and fall along the axis. This structure can lift the power generation structure away from the water surface.

[0029] The structure in which the mass ring 301, the upper plate 302, the first friction layer 303 and the second friction layer 304 are fixedly bonded together achieves periodic contact separation with the third friction layer 401 under the combined action of inertia and spring 8, and generates electricity through the coupling effect of triboelectric charging and electrostatic induction.

Claims

1. A vertical contact separation wave energy harvesting structure, specifically comprising: a top cover (1) and a bottom cover (6) fixedly installed at the upper and lower ends of a cylinder (2); a shaft (10) fixedly installed in the center hole of the top cover (1) and the bottom cover (6); a circular hole for seawater and air to freely enter and exit is provided around the top cover (1) and the bottom cover (6); a linear bearing (7) is installed on the shaft (10); the linear bearing (7) is fixedly connected to a buoyancy block (5); the buoyancy block (5) and the sealing cover (9) form a sealed cavity; a third friction layer (401) and a fourth friction layer (402) are fixedly bonded to the bottom of the sealed cavity; a mass ring (301), an upper plate (302), a first friction layer (303), and a second friction layer (304) are fixedly bonded to the upper end of a spring (8); and the lower end of the spring (8) is fixedly installed at the bottom of the sealed cavity, characterized in that, The mass ring (301), upper plate (302), first friction layer (303), and second friction layer (304) are fixedly bonded from top to bottom in sequence; there is a gap between the structure of the mass ring (301), upper plate (302), first friction layer (303), second friction layer (304), and spring (8) and the inner side of the sealing cover (9); the first friction layer (303) and fourth friction layer (402) are made of copper; the second friction layer (304) and third friction layer (401) are two dielectrics with different electron gain and loss capabilities, the second friction layer (304) is made of polytetrafluoroethylene, and the third friction layer (401) is made of polyterephthalic acid plastic.

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