Unilateral cylinder slip wave energy harvesting structure

Abstract

The present application relates to a kind of unilateral cylinder slip wave energy collection structure, specifically has: the top cover and bottom cover of the upper and lower ends of cylinder are fixedly installed, the central hole of top cover and bottom cover is fixedly installed rotating shaft, and linear bearing is installed on the shaft;Linear bearing is fixed with buoy block, and buoy block forms sealed cavity with sealing cover;The inner cylinder with vertical electrode structure is fixedly installed in the bottom of sealed cavity, and the outer cylinder with vertical friction power generation structure is fixedly installed in the top of spring, and the bottom of spring is fixedly installed in the bottom of sealed cavity.The advantages are: overall structure can be fixedly installed on the target such as buoy on sea, and the irregular movement of cylinder structure is not only converted into single degree of freedom movement along axial direction, but also has good self-protection ability, increases the service life of structure.

Description

Technical Field

[0001] This invention relates to a single-sided cylindrical sliding 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 single-sided cylindrical sliding wave energy harvesting structure includes: a top cover (1) and a bottom cover (6) fixedly installed at the upper and lower ends of the cylinder (2); a shaft (10) fixedly installed in the center hole of the top cover (1) and the bottom cover (6); a linear bearing (7) 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; an inner cylinder (402) with a vertical electrode structure is fixedly installed at the bottom of the sealed cavity; a third friction layer (401) is bonded to the outside of the inner cylinder (402); an outer cylinder (301) with a vertical triboelectric power generation structure is fixedly installed at the top of the spring (8); a first friction layer (302) and a second friction layer (303) are bonded to the inner wall of the outer cylinder (301); and the bottom 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 outer cylinder

[0015] 302 First Friction Layer

[0016] 303 Second Friction Layer

[0017] 401 Third Friction Layer

[0018] 402 Inner Tube

[0019] 5 buoyancy blocks

[0020] 6. Bottom Cover

[0021] 7 Linear bearings

[0022] 8 springs

[0023] 9. Sealing cap

[0024] 10 axes Detailed Implementation

[0025] Figure 1 The cross-section of the wave energy harvesting structure is shown. Specifically, the single-sided cylindrical sliding wave energy harvesting structure described in this embodiment 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 bottom cover 6; a linear bearing 7 installed on the shaft 10; the linear bearing 7 fixedly connected to a buoyancy block 5; the buoyancy block 5 and a sealing cover 9 forming a sealed cavity; an inner cylinder 402 with a vertical electrode structure fixedly installed at the bottom of the sealed cavity; a third friction layer 401 bonded to the outside of the inner cylinder 402; an outer cylinder 301 with a vertical triboelectric power generation structure fixedly installed on the top of a spring 8; a first friction layer 302 and a second friction layer 303 bonded to the inner wall of the outer cylinder 301; and the bottom of the spring 8 fixedly installed at the bottom of the sealed cavity.

[0026] Figure 2The 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.

[0027] 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.

[0028] Under the combined action of inertia and spring 8, the outer cylinder 301 achieves periodic up-and-down movement. The second friction layer 303 on the outer cylinder 301 and the third friction layer 401 on the inner cylinder 402 will periodically contact and separate, generating electricity through the coupling effect of triboelectric charging and electrostatic induction.

Claims

1. A single-sided cylindrical sliding 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 cylindrical (2); a shaft (10) fixedly installed in the center hole of the top cover (1) and the bottom cover (6); a linear bearing (7) 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; an inner cylinder (402) with a vertical electrode structure is fixedly installed at the bottom of the sealed cavity; a third friction layer (401) is bonded to the outside of the inner cylinder (402); an outer cylinder (301) with a vertical triboelectric power generation structure is fixedly installed at the top of a spring (8); a first friction layer (302) and a second friction layer (303) are bonded to the inner wall of the outer cylinder (301); and the bottom of the spring (8) is fixedly installed at the bottom of the sealed cavity, characterized in that, There is a gap between the outer cylinder (301) and the spring (8) and the inner side of the sealing cover (9); the first friction layer (302) and the third friction layer (401) are made of copper; the second friction layer (303) is made of polytetrafluoroethylene (PTFE).

Images