Friction nanometer generator for capturing omnibearing swing energy of power transmission tower

Abstract

The invention belongs to the field of friction nano-generators, and particularly relates to a friction nano-generator used for capturing omnibearing swing energy of a power transmission tower. According to the technical scheme, the friction nanometer generator for capturing the omnibearing swing energy of the power transmission tower comprises a regular octagonal barrel shell set, a swing force transmission device, copper electrode plates, eight sets of sliding block assemblies and an FEP film, and the swing force transmission device is installed in the regular octagonal barrel shell set; the eight sets of sliding block assemblies are arranged in the regular octagonal barrel shell set in eight directions. A copper electrode plate is arranged in the regular octagonal barrel shell group, and an FEP film is arranged on the sliding block assembly; the swing force transmission device drives the sliding block assembly and the regular octagonal barrel shell set to generate displacement for power generation. The friction nanometer generator for capturing the omnibearing swing energy of the power transmission tower can generate power by using the swing energy of the power transmission tower so as to solve the power supply problem of a sensor for the power transmission tower.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of friction nanogenerators, and particularly relates to a friction nanogenerator for capturing all-around swing energy of a power transmission tower. BACKGROUND

[0002] A power transmission tower is infrastructure for safe operation of a power transmission line, and the design and construction quality of the power transmission tower is directly related to the stability and reliability of a power system. In order to resist the influence of natural environment such as wind, ice and snow and guarantee the stability of power transmission, prevent external interference and damage, a sensor needs to be installed on the power transmission tower to monitor the operation state of the power transmission line in real time. However, most of the power transmission towers are in a relatively harsh environment, and problems such as power supply, maintenance, data transmission and analysis processing of the sensor occur frequently. SUMMARY

[0003] The application provides a friction nanogenerator for capturing all-around swing energy of a power transmission tower, which can generate electricity by using swing energy of the power transmission tower to solve the power supply problem of the sensor of the power transmission tower.

[0004] The technical scheme of the application is as follows:

[0005] The friction nanogenerator for capturing all-around swing energy of a power transmission tower comprises a regular octagonal cylinder shell group, a swing transmission device, a copper electrode plate, eight groups of sliding block assemblies and a FEP film, the swing transmission device is installed in the regular octagonal cylinder shell group, and the eight groups of sliding block assemblies are arranged in eight directions in the regular octagonal cylinder shell group; the copper electrode plate is arranged in the regular octagonal cylinder shell group, and the FEP film is arranged on the sliding block assembly; the swing transmission device drives the sliding block assembly and the regular octagonal cylinder shell group to generate displacement for power generation.

[0006] Further, the friction nanogenerator for capturing all-around swing energy of a power transmission tower comprises four regular octagonal cylinders and an end cover which are successively sleeved together from small to large, the end cover is in a regular octagonal structure, the end cover and the upper ends of the four regular octagonal cylinders are fixedly connected together, and eight directions below the end cover are respectively provided with three parallel convex plates; a channel is formed between two adjacent regular octagonal cylinders, and the convex plates are inserted into the channel to position the regular octagonal cylinders.

[0007] Further, the friction nanogenerator for capturing the full range of swing energy of the power transmission tower, the swing transmission device comprises a pressure disc, a pressure button, a spring, a swing rod, a ball cage universal joint and a counterweight, the pressure disc is a regular octagonal structure, the pressure disc is placed on the end cover, eight through holes are uniformly arranged on the end cover, eight pressure buttons are respectively arranged in the eight through holes, the lower end of the pressure button is fixedly connected with the sliding block assembly, the upper end of the pressure button is attached to the pressure disc, and the spring is sleeved on the pressure button and located between the pressure disc and the end cover; the upper end of the swing rod is fixedly connected with the pressure disc, the ball cage universal joint is sleeved on the swing rod, and the counterweight is arranged at the lower end of the swing rod; the shell of the ball cage universal joint is fixedly connected with the inner wall of the innermost regular octagonal cylinder.

[0008] Further, the friction nanogenerator for capturing the full range of swing energy of the power transmission tower, each group of sliding block assemblies comprises three sliding blocks, the upper ends of the three sliding blocks are connected, and the three sliding blocks are equidistantly arranged side by side; the sliding blocks are located in the passages between the regular octagonal cylinders.

[0009] Further, the friction nanogenerator for capturing the full range of swing energy of the power transmission tower, FEP films are arranged on the two sides of the sliding blocks.

[0010] Further, the friction nanogenerator for capturing the full range of swing energy of the power transmission tower, the inner wall of the outermost regular octagonal cylinder is provided with a copper electrode plate, the inner and outer walls of the two regular octagonal cylinders in the middle are provided with copper electrode plates, and the outer wall of the innermost regular octagonal cylinder is provided with a copper electrode plate.

[0011] The working principle of the friction nanogenerator for capturing the full range of swing energy of the power transmission tower is as follows: the regular octagonal cylinder shell group of the friction nanogenerator is fixedly installed at the top of the power transmission tower, and swings along with the power transmission tower, so as to capture the swing energy of the power transmission tower caused by the influence of wind;

[0012] In unilateral swing, the pressure disc is initially in a balanced state, and the pressure disc in this state can tilt in any direction in the shaking of the external environment; when the power transmission tower starts to tilt to the left, the regular octagonal cylinder shell group starts to tilt to the left, the swing rod rotates around the ball cage universal joint under the action of the counterweight, drives the pressure disc to press the corresponding button to push the corresponding sliding block assembly to start to move downward, and the originally aligned FEP film and copper electrode plate start to deviate; when the pressure disc reaches the maximum swing angle position of the direction, the FEP film and the copper electrode plate are again in the aligned state, and the tilt swing of the power transmission tower reaches the current limit position; then, the power transmission tower starts to swing to the right, the sliding block assembly pressed starts to move upward, and finally returns to the balanced position.

[0013] The single swing cycle of the friction nanogenerator is from tilting to one side from the balance position to a position, then swinging from the position to the balance position again, swinging to the same angle position in the opposite direction, and finally returning to the balance position. Therefore, in the actual single swing cycle of the friction nanogenerator, two groups of sliding block assemblies participate in power generation at the same time. When swinging to the left side, the right sliding block assembly moves downward, the right power generation unit generates power, and during the process of swinging back to the balance position from the left side, the right sliding block assembly slides upward, and continues to generate power in the opposite direction, which is half of the power generation cycle. When swinging to the right side after returning to the balance position, the left sliding block assembly moves downward, the left power generation unit generates power, and during the process of swinging back to the balance position from the left side, the left sliding block assembly slides upward, and continues to generate power in the opposite direction, which is the other half of the power generation cycle. The two power generation cycles are closely connected, and when the right sliding block assembly returns to the initial position, the friction nanogenerator swings to the right side, presses the left sliding block assembly to start power generation, and finally generates continuous electric signals.

[0014] The beneficial effects of the present application are:

[0015] 1. According to the characteristics of the transmission tower vibration state, such as low frequency, large amplitude, and random vibration direction caused by wind direction, the friction nanogenerator of the present application realizes omnidirectional capture of the wind-induced vibration energy of the transmission tower based on the principle of single pendulum, by introducing a spherical cage type universal joint structure and using the lever principle to conduct pressure.

[0016] 2. The friction nanogenerator of the present application establishes multiple layers of power generation units inside, collects the swing energy of the external environment in the form of electrode plate series, and effectively improves the output performance and space utilization of the friction nanogenerator for transmission tower vibration state monitoring. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of a friction nanogenerator for capturing omnidirectional swing energy of a transmission tower;

[0018] Figure 2 It is a front view cross-sectional view of a friction nanogenerator for capturing omnidirectional swing energy of a transmission tower;

[0019] Figure 3 It is a front view cross-sectional view of a friction nanogenerator for capturing omnidirectional swing energy of a transmission tower (not including sliding block assembly);

[0020] Figure 4 It is a schematic diagram of a sliding block assembly;

[0021] Figure 5 It is a bottom view of an end cover;

[0022] Figure 6 It is a schematic diagram of an octagonal cylindrical shell group. Detailed Implementation

[0023] like Figures 1-6 As shown, a triboelectric nanogenerator for capturing the omnidirectional oscillation energy of a transmission tower includes an octagonal cylindrical shell assembly 1, an oscillation force transmission device, a copper electrode plate 9, eight sets of sliding block assemblies 8, and an FEP film 10. The oscillation force transmission device is installed in the octagonal cylindrical shell assembly 1, and the eight sets of sliding block assemblies 8 are arranged in eight directions within the octagonal cylindrical shell assembly 1. The oscillation force transmission device drives the sliding block assemblies 8 to generate displacement between them and the octagonal cylindrical shell assembly 1 to generate electricity.

[0024] The regular octagonal cylindrical shell assembly 8 includes four regular octagonal cylinders and an end cap 6, which are sequentially fitted together from smallest to largest. The end cap 6 is a regular octagonal structure and is fixedly connected to the upper ends of the four regular octagonal cylinders. Three protruding plates 12 are arranged side by side in eight directions below the end cap 6. A channel is formed between two adjacent regular octagonal cylinders, and the protruding plates 12 are inserted into the channel to position the regular octagonal cylinders.

[0025] The swing force transmission device includes a pressure plate 4, a button 5, a spring 11, a swing rod 2, a ball cage universal joint 7, and a counterweight 3. The pressure plate 4 has a regular octagonal structure and is placed on the end cover 6. The end cover 6 has eight through holes 13 evenly distributed on it, and the eight buttons 5 are respectively placed into the eight through holes 13. The lower end of the button 5 is fixedly connected to the sliding block assembly 8, and the upper end of the button 5 is in contact with the pressure plate 4. The spring 11 is fitted on the button 5 and is located between the pressure plate 4 and the end cover 6. The upper end of the swing rod 2 is fixedly connected to the pressure plate 4, the ball cage universal joint 7 is fitted on the swing rod 2, and the counterweight 3 is located at the lower end of the swing rod 2. The outer shell of the ball cage universal joint 7 is fixedly connected to the inner wall of the innermost regular octagonal cylinder.

[0026] Each set of sliding block assembly 8 includes three sliders, the upper ends of the three sliders are connected and the three sliders are arranged side by side at equal intervals; the sliders are located in the channel between the regular octagonal cylinders; FEP films 10 are provided on both sides of the sliders.

[0027] The inner wall of the outermost regular octagonal cylinder is provided with a copper electrode plate 9, the inner and outer walls of the two middle regular octagonal cylinders are both provided with copper electrode plates 9, and the outer wall of the innermost regular octagonal cylinder is provided with a copper electrode plate 9.

[0028] The working process of the triboelectric nanogenerator used to capture the energy of the omnidirectional oscillation of the transmission tower is as follows:

[0029] In the initial state, the pressure plate 4 is in a balanced state, which can tilt in any direction in the shaking of the external environment; the FEP film 10 is a plurality of parallel arranged arch-shaped strip structures, and the copper electrode plate 9 is a plurality of parallel arranged copper electrode strips; when the arch-shaped strip of the FEP film 10 and the copper electrode strip of the copper electrode plate 9 realize area alignment, based on the triboelectric effect, the electrons on the surface of the copper electrode plate 9 are transferred to the surface of the FEP film 10; the surfaces of the copper electrode plate 9 and the FEP film 10 respectively accumulate equal and opposite charges.

[0030] With the swing lever 2 driving the pressure plate 4 to start tilting to one side, the pressure plate 4 pushes the slide block assembly 8 to start moving downward, the FEP film 10 slides downward relative to the copper electrode plate 9, the alignment area of the two materials decreases, based on the principle of electrostatic induction, the electrons on the surface of the copper electrode plate 9 are repelled by the negative charges carried by the FEP film 10, driving the formation of current in the external circuit.

[0031] When the pressure plate 4 reaches the maximum swing angle position in this direction, the arch-shaped strip of the FEP film 10 and the copper electrode strip of the copper electrode plate 9 again realize area alignment, based on the principle of electrostatic induction, the electrons on the surface of the copper electrode plate 9 are transferred under the action of the electric field force; at this time, the surfaces of the FEP film 10 and the copper electrode plate 9 again respectively accumulate equal and opposite charges.

[0032] Then the pressure plate 4 starts to swing to the other side, the slide block 8 pressed by the pressure plate 4 also starts to move upward, and finally returns to the balanced position, during which the alignment area of the two materials decreases again, driving the formation of current in the external circuit, thereby completing the entire power generation cycle.

[0033] The above friction nanogenerator for capturing the energy of the full-range swing of the power transmission tower can convert mechanical energy into electrical energy, and realize the driving of the low-energy-consumption temperature and humidity sensor through the stored electrical energy. Experimental results show that the friction nanogenerator takes 6 min to charge a 22 μF commercial capacitor, and the peak power is 18 μW, proving that the friction nanogenerator has the ability to charge the capacitor for energy supply.

[0034] The friction nanogenerator can effectively monitor the swing angle of the external environment, and a swing angle monitoring system is designed by using the feature that the swing amplitude leads to the change of signal form; based on the LabVIEW graphical programming language, the waveform is read, and the voltage value output by the friction nanogenerator is visually represented, the swing angle is monitored by the arrangement of signals and the form of signal waveform, and when the swing angle increases by 3°, there will be one more period of signal; when the swing angle is within 12°, the warning light is green, and when the swing angle exceeds 12°, the warning light displays red and issues an alarm.

Claims

1. A triboelectric nanogenerator for capturing the energy of the omnidirectional oscillation of a transmission tower, characterized in that, It includes an octagonal cylindrical shell assembly, a swinging force transmission device, a copper electrode plate, eight sets of sliding block assemblies, and an FEP film. The swinging force transmission device is installed in the octagonal cylindrical shell assembly, and the eight sets of sliding block assemblies are arranged in eight directions within the octagonal cylindrical shell assembly. The octagonal cylindrical shell assembly is equipped with a copper electrode plate, and the sliding block assemblies are equipped with an FEP film. The swinging force transmission device drives the sliding block assemblies and the octagonal cylindrical shell assembly to generate electricity by creating displacement between them.

2. The triboelectric nanogenerator for capturing the omnidirectional oscillation energy of a transmission tower according to claim 1, characterized in that, The regular octagonal cylindrical shell assembly includes four regular octagonal cylinders and end caps that are nested together in ascending order of size. The end caps are regular octagonal in shape and are fixedly connected to the upper ends of the four regular octagonal cylinders. Three protruding plates are arranged side by side in eight directions below the end caps. A channel is formed between two adjacent regular octagonal cylinders, and the protruding plates are inserted into the channel to position the regular octagonal cylinders.

3. The triboelectric nanogenerator for capturing the omnidirectional oscillation energy of a transmission tower according to claim 2, characterized in that, The oscillating force transmission device includes a pressure plate, a pressure button, a spring, a swing arm, a ball cage universal joint, and a counterweight. The pressure plate has a regular octagonal structure and is placed on the end cover. The end cover has eight through holes evenly distributed on it, and eight pressure buttons are respectively inserted into the eight through holes. The lower end of each pressure button is fixedly connected to a sliding block assembly, and the upper end of each pressure button is in contact with the pressure plate. The spring is fitted onto the pressure button and is located between the pressure plate and the end cover. The upper end of the swing arm is fixedly connected to the pressure plate, and the ball cage universal joint is fitted onto the swing arm. The counterweight is located at the lower end of the swing arm. The outer shell of the ball cage universal joint is fixedly connected to the inner wall of the innermost regular octagonal cylinder.

4. The triboelectric nanogenerator for capturing the omnidirectional oscillation energy of a transmission tower according to claim 2, characterized in that, Each set of sliding block assemblies includes three sliders, the upper ends of which are connected and the three sliders are arranged side by side at equal intervals; the sliders are located in the channel between the regular octagonal cylinders.

5. The triboelectric nanogenerator for capturing the omnidirectional oscillation energy of a transmission tower according to claim 4, characterized in that, The slider has FEP films on both sides.

6. The triboelectric nanogenerator for capturing the omnidirectional oscillation energy of a transmission tower according to claim 2, characterized in that, The inner wall of the outermost regular octagonal cylinder is equipped with a copper electrode plate, the inner and outer walls of the two middle regular octagonal cylinders are equipped with copper electrode plates, and the outer wall of the innermost regular octagonal cylinder is equipped with a copper electrode plate.

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