Bilateral cylinder sliding wave energy collection structure

Abstract

The present application relates to a kind of bilateral cylinder slip wave energy collection structures, specifically have: the upper and lower ends of cylinder are fixedly installed top cover and bottom cover, 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 top and bottom of sealed cavity are fixedly installed with the upper inner cylinder and lower inner cylinder of electrode structure, and the outer cylinder with friction power generation structure is installed between spring one and spring two.Advantages are: overall structure can be fixedly installed on the sea target such as buoy, and the cylinder structure not only converts the irregular movement of sea wave into single degree of freedom movement along the axial direction, but also has good self-protection ability, increases the service life of structure.

Description

Technical Field

[0001] This invention relates to a double-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 double-sided cylindrical sliding wave energy harvesting structure includes: a top cover (1) and a bottom cover (7) fixedly installed at the upper and lower ends of the cylinder (2); a shaft (12) fixedly installed in the center hole of the top cover (1) and the bottom cover (7); circular holes for seawater and air to freely enter and exit are provided around the top cover (1) and the bottom cover (7); a linear bearing (8) is installed on the shaft (12); the linear bearing (8) is fixedly connected to the buoyancy block (6); the buoyancy block (6) and the sealing cover (10) form a sealed cavity; an upper inner cylinder (301) and a lower inner cylinder (502) with electrode structures are fixedly installed at the top and bottom of the sealed cavity; the upper inner cylinder (301) is... The outer wall of the inner cylinder (502) is bonded with a third upper friction layer (302), and the outer wall of the inner cylinder (502) is bonded with a third lower friction layer (501). The outer cylinder (401) with the triboelectric power generation structure is installed between spring one (11) and spring two (9). The upper inner wall of the outer cylinder (401) is bonded with a first upper friction layer (402) and a second upper friction layer (403), and the lower inner wall of the outer cylinder (401) is bonded with a first lower friction layer (404) and a second lower friction layer (405). The top of spring one (11) is fixedly installed at the top of the sealing cavity, and the bottom of spring two (9) is fixedly installed at the bottom of the sealing cavity.

[0008] The advantages of this invention are: the overall structure can be fixedly installed on marine targets such as buoys; 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 a good self-protection capability, 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 Inner Tube

[0015] 302 Third upper friction layer

[0016] 401 outer cylinder

[0017] 402 First Upper Friction Layer

[0018] 403 Second upper friction layer

[0019] 404 First Lower Friction Layer

[0020] 405 Second Lower Friction Layer

[0021] 501 Third Lower Friction Layer

[0022] 502 Lower Inner Cylinder

[0023] 6 buoyancy blocks

[0024] 7. Bottom Cover

[0025] 8 Linear bearings

[0026] 9. Spring Two

[0027] 10 Sealing cap

[0028] 11 Spring 1

[0029] 12-axis Detailed Implementation

[0030] Figure 1 The diagram shows a cross-section of a wave energy harvesting structure. This embodiment of a double-sided cylindrical sliding wave energy harvesting structure specifically includes: a top cover 1 and a bottom cover 7 fixedly installed at the upper and lower ends of a cylindrical 2; a shaft 12 fixedly installed in the center hole of the top cover 1 and bottom cover 7; circular holes for free entry and exit of seawater and air provided around the top cover 1 and bottom cover 7; a linear bearing 8 installed on the shaft 12; the linear bearing 8 fixedly connected to a buoyancy block 6; the buoyancy block 6 and the sealing cover 10 forming a sealed cavity; an upper inner cylinder 301 and a lower inner cylinder 5 with electrode structures fixedly installed at the top and bottom of the sealed cavity. 02. The outer wall of the upper inner cylinder 301 is bonded with the third upper friction layer 302, and the outer wall of the lower inner cylinder 502 is bonded with the third lower friction layer 501. The outer cylinder 401 with the triboelectric power generation structure is installed between spring 11 and spring 9. The upper inner wall of the outer cylinder 401 is bonded with the first upper friction layer 402 and the second upper friction layer 403, respectively. The lower inner wall of the outer cylinder 401 is bonded with the first lower friction layer 404 and the second lower friction layer 405, respectively. The top of spring 11 is fixedly installed at the top of the sealing cavity, and the bottom of spring 9 is fixedly installed at the bottom of the sealing cavity.

[0031] Figure 2 The diagram shows a front view of the top cover 1, which is identical to the bottom cover 7. Except for the central hole for mounting the shaft 12, the top cover 1 has holes around its perimeter to allow seawater and air to freely enter and exit.

[0032] 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 6 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.

[0033] Under the influence of inertia, the outer cylinder 401 moves up and down periodically between spring 11 and spring 9. The friction layer on the outer cylinder 401 will periodically contact and separate from the friction layers installed on the upper inner cylinder 301 and the lower inner cylinder 502, and generate electricity through the coupling effect of friction electrification and electrostatic induction.

Claims

1. A double-sided cylindrical sliding wave energy harvesting structure, specifically comprising: a top cover (1) and a bottom cover (7) fixedly installed at the upper and lower ends of a cylindrical tube (2); a shaft (12) fixedly installed in the center hole of the top cover (1) and the bottom cover (7); circular holes for seawater and air to freely enter and exit are provided around the top cover (1) and the bottom cover (7); a linear bearing (8) is installed on the shaft (12); the linear bearing (8) is fixedly connected to a buoyancy block (6); the buoyancy block (6) and the sealing cover (10) form a sealed cavity; an upper inner cylinder (301) and a lower inner cylinder (502) with an electrode structure are fixedly installed at the top and bottom of the sealed cavity; the outer wall of the upper inner cylinder (301) is... A third upper friction layer (302) is bonded to the side, and a third lower friction layer (501) is bonded to the outer side of the inner cylinder (502); an outer cylinder (401) with a triboelectric power generation structure is installed between spring one (11) and spring two (9), and a first upper friction layer (402) and a second upper friction layer (403) are bonded to the upper inner side wall of the outer cylinder (401), and a first lower friction layer (404) and a second lower friction layer (405) are bonded to the lower inner side wall of the outer cylinder (401), with the top of spring one (11) fixedly installed at the top of the sealing cavity and the bottom of spring two (9) fixedly installed at the bottom of the sealing cavity. The outer cylinder (401) is characterized by the following features: There are gaps between the upper inner cylinder (301), the lower inner cylinder (502), spring one (11) and spring two (9) and the inner side of the sealing cover (10); the first upper friction layer (402), the first lower friction layer (404), the third upper friction layer (302) and the third lower friction layer (501) are made of copper; the second upper friction layer (403) and the second lower friction layer (405) are made of polytetrafluoroethylene (PTFE).

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