A self-powered transmission line vibration intelligent monitoring device

Abstract

The present invention provides a self-powered intelligent vibration monitoring device for power transmission lines, comprising an end cap, a cylinder, a wire clamp, a support beam, a piezoelectric energy capture module, a friction energy capture module, an energy capture conversion module, and a signal transmission module. The piezoelectric energy capture module comprises a cantilever beam and a piezoelectric plate, which are fixed around the cylinder, while the friction energy capture module is located at the end of the cantilever beam. The friction energy capture module comprises a response plate, a fixed plate, and a triboelectric power generation film, which are located at the end of the cantilever beam, with the response plate and the fixed plate being arranged in correspondence with each other about the fixed plate as the axis of symmetry. By combining piezoelectric and friction energy capture methods, the device fully utilizes the kinetic energy of the power transmission line and improves energy capture efficiency.

Description

Technical Field

[0001] The present invention relates to the field of energy capture, and in particular to a self-powered transmission line vibration intelligent monitoring device. Background Art

[0002] In recent years, with the rapid development and expansion of power grid construction, intelligent transmission line status monitoring has become increasingly important. Sensors, as primary and critical components in automatic control systems, can collect various information such as ambient temperature and humidity, gas concentration, vibration, acceleration, current and voltage, and transmit this information to other monitoring devices, providing a reliable method for detecting the operating status of transmission lines. Existing sensors generally require a continuous external power supply. Traditional chemical batteries are bulky, have limited service lives, are difficult to repair and replace after damage in the operating environment, and, once discarded, cause irreversible environmental pollution and harm human health. Therefore, finding a continuous power supply for sensors and ensuring their uninterrupted operation has become a challenge. Researchers have proposed using environmental energy as an alternative energy source for sensor nodes, achieving a sustainable power supply by harvesting energy from the surrounding environment. Vibration energy is ubiquitous and easily accessible in the environment. Converting this energy into electricity through a piezoelectric cantilever beam and a friction structure can provide a reliable power source for smart grid wireless sensor nodes. Based on this, we propose a self-powered intelligent transmission line vibration monitoring device. Its main principle is to harvest energy from the environment, convert this energy into electricity, and power the signal transmission module, thereby achieving intelligent monitoring of power grid transmission lines. The self-powered transmission line vibration intelligent monitoring device has broad application prospects in the field of transmission line monitoring Summary of the Invention

[0003] The purpose of the present invention is to address the deficiencies of the existing technology and thus provide a composite energy capture method to fully utilize the vibration energy in the environment to realize a continuous self-powered intelligent monitoring device for transmission lines.

[0004] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is: a self-powered transmission line vibration intelligent monitoring device, comprising an end cap, a cylinder, a wire clamp, a support beam, a piezoelectric energy capture module, a friction energy capture module, an energy capture conversion module and a signal transmission module;

[0005] The end cover is fixed to the cylinder by a bolt structure, the wire clamp and the support beam are fixed to the cylinder, the center of the support beam is a cylindrical structure, and four square columns are evenly distributed around the cylinder. The inner wall surface of the cylinder has a base for fixing the cantilever beam, and the connecting surfaces on both sides of the cylinder protrude mounting interfaces, and the connecting surface of the end cover protrudes mounting interfaces;

[0006] The piezoelectric energy capture module includes a friction energy capture module, a cantilever beam, and a piezoelectric sheet. The friction energy capture module is located at the end of the cantilever beam. The fixed end of the cantilever beam is fixed to the base of the cylinder using a bolt structure. The piezoelectric sheet is installed on one side or both sides of the cantilever beam. During the vibration of the cylinder, the base on the cylinder drives the cantilever beam to swing, and the piezoelectric sheet is connected to the energy capture conversion module.

[0007] The friction energy capture module includes a response plate, a fixed plate, and a friction power generation film. The response plate and the fixed plate are located at the ends of the cantilever beam. The response plate is arranged correspondingly with the fixed plate as the symmetry axis. The friction power generation films are fixed in pairs on the opposite surfaces of the response plate and the fixed plate respectively. The swing of the cantilever beam drives the response plate to perform a flapping action. The friction power generation film is connected to the energy capture conversion module via a wire.

[0008] The energy capture conversion module converts the alternating current generated by the piezoelectric energy capture module and the friction energy capture module into direct current through a rectifier circuit to supply power to the signal transmission module.

[0009] Based on the above, the end cover is connected to the two side surfaces of the cylinder through a bolt structure, and the support beam, piezoelectric energy capture module, friction energy capture module and energy capture conversion module are sealed in the cylinder.

[0010] Based on the above, the wire clamp and the support beam are fixed on the cylinder. The middle of the support beam is a circular ring structure, and four square columns are distributed around the circumference of the ring to strengthen the rigidity of the cylinder structure.

[0011] As mentioned above, there are 4 bases on the inner wall surface of the cylinder for fixing the cantilever beam. A groove matching the width of the cantilever beam is dug in the middle of the base for limiting the position. Screw holes are drilled on the upper and lower surfaces. The angle between the central axis of the base and the axis of the square column of the supporting beam is 45°, and 4 mounting interfaces are protruding from the connecting surfaces on both sides of the cylinder.

[0012] Based on the above, the cylinder vibrates when the transmission line swings with the wind, and the cantilever beam is driven to swing through the base inside the cylinder.

[0013] Based on the above, the response plate and the fixed plate of the friction energy capture module are located at the end of the cantilever beam. The vibration of the cantilever beam drives the response plate to perform a flapping action. The friction power generation film is connected to the energy capture conversion module through a wire, and the energy capture conversion module provides electrical energy for the signal transmission module.

[0014] Based on the above, the cantilever beam array in the piezoelectric energy capture module is distributed to capture vibration energy in all directions.

[0015] Based on the above, the cantilever beam is connected to the base in the cylinder through a bolt structure.

[0016] This invention offers outstanding substantive features and significant advancements over existing technologies. Specifically, it utilizes wind-induced vibration energy from transmission lines to create a hybrid power generation device that combines piezoelectric and triboelectric power generation. This device fully utilizes the transmission line's vibrational kinetic energy, harvesting it to continuously power the signal transmission module. Because transmission line vibration is ubiquitous, this invention has broad applicability and promises widespread application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the schematic diagrams of the structural principle of the self-powered transmission line vibration intelligent monitoring device in Example 1 of the present invention.

[0018] Figure 2 This is the second schematic diagram of the structural principle of the self-powered transmission line vibration intelligent monitoring device in Example 1 of the present invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of the self-powered transmission line vibration intelligent monitoring device in Example 1 of the present invention.

[0020] Figure 4 It is a schematic diagram of the piezoelectric energy capture module and the friction energy capture module in the present invention.

[0021] Figure 5 It is a structural schematic diagram of the end cover in the present invention.

[0022] Figure: 1. End cap; 2. Cylinder; 3. Wire clamp; 4. Support beam; 5. Cantilever beam; 6. Response plate; 7. Fixing plate; 8. Bolt structure; 9. Piezoelectric sheet; 10. Power generation film; 11. Mounting interface. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described in detail below through specific implementation methods.

[0024] A self-powered transmission line vibration intelligent monitoring device comprises an end cover, a cylinder, a wire clamp, a support beam, a piezoelectric energy capture module, a friction energy capture module, an energy capture conversion module and a signal transmission module.

[0025] The energy capture and conversion module is used to collect, convert and manage the collected energy, and the signal transmission module is used to transmit the monitored transmission line vibration signal to a ground receiver.

[0026] Example 1

[0027] like Figure 1-Figure 5As shown, the end cover 1 is fixed to the cylinder 2 by a bolt structure 8, the wire clamp 3 and the support beam 4 are fixed to the cylinder 2, the support beam 4 has a cylindrical structure in the middle, and four square columns are evenly distributed around the cylinder. The inner wall surface of the cylinder 2 has a base for fixing the cantilever beam 5, and the connecting surfaces on both sides of the cylinder 2 protrude the mounting interface 11, and the connecting surface of the end cover 1 protrudes the mounting interface 11;

[0028] The piezoelectric energy capture module includes a friction energy capture module, a cantilever beam 5, and a piezoelectric sheet 9. The friction energy capture module is located at the end of the cantilever beam. The fixed end of the cantilever beam is fixed to the base of the cylinder 2 using a bolt structure 8. The piezoelectric sheet 9 is installed on one side or both sides of the cantilever beam 5. The cylinder 2 is connected to the power transmission line through the wire clamp 3. When the power transmission line vibrates, the cylinder 2 is driven to vibrate. The base on the cylinder 2 drives the cantilever beam 5 to swing. The piezoelectric sheet 9 is connected to the energy capture conversion module.

[0029] The friction energy capture module includes a response plate 6, a fixed plate 7, and a friction power generation film 10. The response plate 6 and the fixed plate 7 are located at the ends of the cantilever beam 5. The response plate 6 is arranged correspondingly with the fixed plate 7 as the symmetry axis. The friction power generation films 10 are fixed in pairs on the opposite surfaces of the response plate 6 and the fixed plate 7. The swing of the cantilever beam 5 drives the response plate 6 to perform a flapping action. The friction power generation film 10 is connected to the energy capture conversion module through a wire.

[0030] The self-powered transmission line vibration intelligent monitoring device is installed on the transmission line through a wire clamp 3. When the transmission line is disturbed by natural wind and vibrates, the cylinder 2 of the self-powered transmission line vibration intelligent monitoring device on it is driven to vibrate. The cylinder 2 drives the cantilever beam 5 to vibrate through the base thereon. The vibration of the cantilever beam 5 causes the piezoelectric piece 9 on its surface to deform and generate voltage, which is connected to the energy capture conversion module through a wire; at the same time, the vibration of the cantilever beam 5 drives the response plate 6 at its end to flap on both sides of the fixed plate 7, and the power generation film 10 on its opposite surface generates voltage through friction, which is connected to the energy capture conversion module through a wire. The energy conversion module provides electrical energy to the signal transmission module.

[0031] Example 2

[0032] In this embodiment, the cantilever beam is fixed on the inner base groove of the cylinder at equal angles along the circumferential direction, and the end of the cantilever beam is a swing end. In a natural environment, no matter in which direction the wind acts on the self-powered transmission line vibration intelligent monitoring device, it can efficiently capture energy through its multi-angle adaptive design, thereby ensuring that under complex and changeable natural conditions, a continuous power support is provided for the operation of the intelligent monitoring system.

[0033] Example 3

[0034] In this embodiment, the self-powered transmission line vibration intelligent monitoring device can be installed on the inclined cable of the bridge. When the wind flows through the surface of the inclined cable and forms alternating vortices on both sides to cause the inclined cable to vibrate, the piezoelectric energy capture module and the friction energy capture module convert the vibration kinetic energy into electrical energy through the energy conversion module to power the signal transmission module. No external power supply is required, thereby realizing real-time monitoring of key parameters such as vibration, stress, and temperature of the bridge inclined cable, ensuring the safety of the bridge structure and extending the service life of the bridge.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solutions of the present invention. They should all be included in the scope of the technical solutions claimed for protection by the present invention.

Claims

1. A self-powered transmission line vibration intelligent monitoring device, characterized by: It includes an end cover, a cylinder, a wire clamp, a support beam, a piezoelectric energy capture module, a friction energy capture module, an energy capture conversion module and a signal transmission module; The end cover is fixed to the cylinder by a bolt structure, the wire clamp and the support beam are fixed to the cylinder, the center of the support beam is a cylindrical structure, and four square columns are evenly distributed around the cylinder. The inner wall surface of the cylinder has a base for fixing the cantilever beam, and the connecting surfaces on both sides of the cylinder protrude mounting interfaces, and the connecting surface of the end cover protrudes mounting interfaces; The piezoelectric energy capture module includes a cantilever beam and a piezoelectric sheet. The fixed end of the cantilever beam is fixed to the base of the cylinder using a bolt structure. The piezoelectric sheet is installed on one or both sides of the cantilever beam. During the vibration of the cylinder, the base on the cylinder drives the cantilever beam to swing, and the piezoelectric sheet is connected to the energy capture conversion module. The friction energy capture module includes a response plate, a fixed plate, and a friction power generation film. The response plate and the fixed plate are located at the ends of the cantilever beam. The response plate is arranged correspondingly with the fixed plate as the symmetry axis. The friction power generation films are fixed in pairs on the opposite surfaces of the response plate and the fixed plate respectively. The swing of the cantilever beam drives the response plate to perform a flapping action. The friction power generation film is connected to the energy capture conversion module via a wire. The energy capture conversion module converts the alternating current generated by the piezoelectric energy capture module and the friction energy capture module into direct current through a rectifier circuit to supply power to the signal transmission module.

2. The self-powered transmission line vibration intelligent monitoring device according to claim 1, characterized in that: The end cover is connected to the two side surfaces of the cylinder through a bolt structure, and the support beam, piezoelectric energy capture module, friction energy capture module and energy capture conversion module are sealed in the cylinder.

3. The self-powered transmission line vibration intelligent monitoring device according to claim 1, characterized in that: The wire clamp and the support beam are fixed on the cylinder. The middle of the support beam is a circular ring structure, and four square columns are distributed around the circumference of the ring to strengthen the rigidity of the cylinder structure.

4. The self-powered transmission line vibration intelligent monitoring device according to claim 1, characterized in that: There are four bases on the inner wall surface of the cylinder for fixing the cantilever beam. A groove matching the width of the cantilever beam is dug in the middle of the base for limiting the position. Screw holes are drilled on the upper and lower surfaces. The angle between the central axis of the base and the axis of the square column of the supporting beam is 45°. Four mounting interfaces are protruding from the connecting surfaces on both sides of the cylinder.

5. The self-powered transmission line vibration intelligent monitoring device according to claim 1, characterized in that: The cylinder vibrates when the transmission line swings with the wind, and drives the cantilever beam to swing through the base inside the cylinder.

6. The self-powered transmission line vibration intelligent monitoring device according to claim 1, characterized in that: The cantilever beam array in the piezoelectric energy capture module is distributed to capture vibration energy in all directions.

Images