Lightning arrester shedding on-line monitoring device

Abstract

A button end of a microswitch is in contact with the bottom of the lightning arrester and is in a compressed state, and once the lightning arrester falls off and is damaged due to lightning stroke and the like, the state of the microswitch can be changed immediately, and the microswitch is converted into a switch-on state from a switch-off state. After the control unit receives the switch-on signal, fault information can be quickly sent out, and the fault position can be accurately positioned. The automatic monitoring mode thoroughly changes the traditional mode that fault points are searched through manual inspection, and manpower and time cost are greatly saved. Maintenance personnel do not need to check lightning arresters one by one in a large area, but can directly and quickly reach fault points to replace the lightning arresters according to information provided by the device, so that the operation and maintenance efficiency and reliability of a power system are remarkably improved, and stable operation of the power system is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power monitoring equipment, in particular to a lightning arrester falling online monitoring device. BACKGROUND

[0002] In the power system, especially in the field of 10kV power transmission and distribution lines, lightning arresters, as key over-voltage protection equipment, undertake the important task of limiting the damage of lightning over-voltage and operating over-voltage to electrical equipment. However, the existing 10kV power transmission and distribution lines generally use lightning arresters of traditional structure, which has exposed significant technical shortcomings in practical application.

[0003] When the lightning arrester is damaged or falls off due to lightning strike or other abnormal working conditions, the operating state information of the equipment cannot be directly obtained by the operation and maintenance personnel due to the lack of effective real-time monitoring means. At present, the industry mainly adopts manual regional inspection method to troubleshoot, that is, the appearance state of the lightning arrester is observed by naked eyes through periodic or irregular on-site inspection to determine whether there is a fault.

[0004] This method has obvious limitations: on the one hand, it is difficult to accurately locate the fault point, especially in the scene where the line coverage is wide and the geographical environment is complex, the manual troubleshooting efficiency is extremely low; on the other hand, the time interval from fault occurrence to discovery is long, which cannot realize timely replacement of damaged equipment, and may cause continuous accumulation of power grid operation risk. In addition, high-frequency manual inspection not only occupies a large amount of human resources, but also increases the operation and maintenance cost, which is difficult to meet the real-time and intelligent requirements of modern power grid on equipment state monitoring. Therefore, a new device capable of realizing lightning arrester falling online monitoring is urgently needed to solve the problems of response lag, low efficiency and high cost in the traditional operation and maintenance mode. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a lightning arrester falling online monitoring device to solve one or more problems in the prior art.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: a lightning arrester falling online monitoring device, comprising: an outer shell body, provided with a mounting hole and an avoidance hole at the top end, and having an opening at the bottom; an inner shell body, arranged in the inner chamber of the outer shell body, and having a hollow boss formed at the top end extending upward, and having an opening at the bottom; a micro switch, embedded in the hollow boss, with the button end exposed at the opening end of the hollow boss; a control unit, arranged in the inner shell body and electrically connected with the micro switch; wherein the hollow boss extends out of the outer shell body through the avoidance hole, and the button end is configured to be pressed against the bottom of the lightning arrester; and the outer shell body is fixed on the lightning arrester through the mounting hole.

[0007] In an embodiment of the present application, the control unit comprises a control mainboard and a power supply electrically connected; the microswitch signal is connected to the control mainboard; the control mainboard is integrated with a wireless communication module for communication with an external signal collector.

[0008] In an embodiment of the present application, the inner side of the top plate of the inner shell is provided with a blind hole, and the control mainboard is fixedly installed in the blind hole.

[0009] In an embodiment of the present application, a cover plate is further included for detachably sealing the opening of the outer shell and the bottom of the inner shell.

[0010] In an embodiment of the present application, the inner wall of the outer shell is provided with a guide column, and the outer wall of the inner shell is provided with a guide groove matched with the guide column.

[0011] In an embodiment of the present application, a first screw hole is formed at the bottom of the guide column, and a second screw hole is formed at the inner wall of the inner shell, and the cover plate is locked to the first screw hole and the second screw hole by a fixing screw.

[0012] In an embodiment of the present application, the top end of the outer shell is provided with a protective flange surrounding the mounting hole and the avoiding hole.

[0013] In an embodiment of the present application, the inner shell is made of insulating plastic.

[0014] As described above, the lightning arrester falling online monitoring device of the present application has the following beneficial effects: by embedding the microswitch in the hollow boss passing through the avoiding hole of the outer shell, the button end of the microswitch is directly pressed against the bottom of the lightning arrester. When the lightning arrester falls off due to lightning damage or loose installation, the button end loses the pressure, the state of the microswitch changes and triggers the control unit. The device can monitor whether the lightning arrester is in a normal working state (i.e. whether the bottom of the lightning arrester falls off) in real time and reliably. Once the lightning arrester falling fault is monitored, the control unit can immediately send an alarm signal containing the fault location information. This enables the line maintenance personnel to accurately locate the fault point and reach the site in time to replace the faulty lightning arrester. It completely changes the traditional way of relying on manual inspection to check the fault point, significantly shortens the fault discovery and repair time, effectively reduces the manual inspection cost, and greatly improves the efficiency and power supply reliability of power grid operation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 Structure diagram of the lightning arrester falling online monitoring device provided by the present application is shown in the figure.

[0017] Figure 2 Partial structure sectional view of the lightning arrester falling online monitoring device provided by the present application is shown in the figure.

[0018] Figure 3 Partial structure explosion view of the lightning arrester falling online monitoring device provided by the present application is shown in the figure.

[0019] Figure 4 Structure diagram of the outer shell of the lightning arrester falling online monitoring device provided by the present application is shown in the figure.

[0020] Figure 5 Structure diagram of the outer shell of the lightning arrester falling online monitoring device provided by the present application is shown in the figure.

[0021] Figure 6 Structure diagram of the inner shell of the lightning arrester falling online monitoring device provided by the present application is shown in the figure.

[0022] Element number explanation

[0023] 1. outer shell; 2. mounting hole; 3. avoiding hole; 4. inner shell; 5. hollow boss; 6. micro switch; 7. control mainboard; 8. power supply; 9. blind hole; 10. cover plate; 11. guide column; 12. guide groove; 13. first screw hole; 14. second screw hole; 15. protection flange. DETAILED DESCRIPTION

[0024] The present application provides a lightning arrester falling online monitoring device, in order to make the purpose, technical scheme and effect of the present application more clear and definite, the following will be further detailed with reference to the drawings and examples. In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms “up, down, left and right” is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and cannot be understood as a limitation on the present application; in addition, the terms “mounting”, “connecting” and the like should be understood broadly, and for those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0025] Please refer to Figures 1 to 6The application provides a lightning arrester falling online monitoring device, which comprises an outer shell body 1, a mounting hole 2 and an avoiding hole 3 are arranged at the top end of the outer shell body 1, and the bottom of the outer shell body 1 is provided with an opening; an inner shell body 4 is arranged in the inner chamber of the outer shell body 1, the top end of the inner shell body 4 extends upwards to form a hollow boss 5, and the bottom of the inner shell body 4 is provided with an opening; a micro switch 6 is embedded in the hollow boss 5, and the button end of the micro switch 6 is exposed to the opening end of the hollow boss 5; a control unit is arranged in the inner shell body 4 and is electrically connected with the micro switch 6; wherein the hollow boss 5 extends out of the outer shell body 1 through the avoiding hole 3, the button end is arranged to be pressed against the bottom of the lightning arrester, and the outer shell body 1 is fixed on the lightning arrester through the mounting hole 2. The lightning arrester falling online monitoring device realizes the real-time online monitoring function of the lightning arrester falling state through the structural combination of the outer shell body 1, the inner shell body 4, the micro switch 6 and the control unit and the like. The button end of the micro switch 6 is arranged at the bottom of the lightning arrester, and the normal working state is maintained by continuously bearing the pressure of the lightning arrester. In the normal working state, the control unit is in a power-off state, that is, in a dormant non-working state. When the lightning arrester or the lightning arrester falling device falls, the pressure on the button end of the micro switch 6 immediately changes, and this change signal is detected and quickly transmitted to the control unit for processing, then the fault signal is sent to the external signal receiver, and then transmitted to the gateway, and the gateway transmits the fault signal to the cloud platform or the upper computer. The specific location of the fault can be directly known through the cloud platform or the upper computer. This design enables the system to discover the lightning arrester falling fault at the first time, completely avoids the disadvantages that a large amount of time and manpower are consumed to find the fault point in the traditional manual inspection mode, and significantly improves the efficiency and reliability of the power system operation and maintenance work. At the same time, the stable operation of the power system is effectively ensured, the risk of power accidents caused by the lightning arrester fault not being discovered in time is reduced to the minimum, and strong technical support is provided for the power grid safety.

[0026] The control unit comprises a control mainboard 7 and a power supply 8 which are electrically connected; the micro switch 6 is signal-connected to the control mainboard 7; the control mainboard 7 is integrated with a wireless communication module for communication with the external signal collector. A blind hole 9 is arranged in the inner side of the top plate of the inner shell body 4, and the control mainboard 7 is fixedly installed in the blind hole 9. Optionally, the power supply 8 selects a lithium battery to provide stable power support and adapt to the scene requirement without external power supply.

[0027] Please refer to Figure 2 and Figure 3Further comprising a cover plate 10 for detachably sealing the opening between the outer shell 1 and the bottom of the inner shell 4. The inner wall of the outer shell 1 is provided with a guide column 11, and the outer wall of the inner shell 4 is provided with a guide groove 12 matched with the guide column 11. This makes the inner shell 4 stably and accurately assembled and positioned inside the outer shell 1. This guide structure not only improves the assembly accuracy and efficiency of the device, avoids the problems such as skewing or jamming of the inner shell 4 during installation, but also enhances the overall structural stability of the device, ensuring that the micro switch 6 and the control unit and other components can work normally during operation and are not affected by the stress caused by inaccurate positioning of the inner shell 4.

[0028] Referring to Figure 4 , the top end of the outer shell 1 is provided with a protective flange 15 surrounding the mounting hole 2 and the avoidance hole 3. The protective flange 15 not only surrounds the mounting hole 2 and the avoidance hole 3, but also has a height and thickness that can form an effective physical barrier. In actual application, the protective flange 15 can significantly reduce the risk of scratching the edge of the hole caused by tool misoperation during installation, and can also avoid the problem of deformation or edge damage of the hole caused by accidental collision or long-term friction during use. Through this protective design, not only the service life of the outer shell 1 is prolonged, but also the stability and safety of the entire device under various complex working conditions are ensured, especially in harsh environments such as vibration and impact, the device can still maintain good structural integrity. In addition, the circular arc transition design of the protective flange 15 further optimizes the stress distribution and avoids the occurrence of stress concentration.

[0029] Referring to Figure 5 and Figure 6 , the bottom of the guide column 11 is provided with a first screw hole 13, and the inner wall of the inner shell 4 is provided with a second screw hole 14, and the cover plate 10 is locked in the first screw hole 13 and the second screw hole 14 by a fixing screw. By opening the first screw hole 13 at the bottom of the guide column 11, setting the second screw hole 14 on the inner wall of the inner shell 4, and locking the cover plate 10 in the first screw hole 13 and the second screw hole 14 by a fixing screw, the cover plate 10 is firmly connected with the outer shell 1 and the inner shell 4. This not only further enhances the structural stability of the device, prevents the cover plate 10 from loosening or falling off during use, but also makes the fixation of the cover plate 10 more reliable, better protects the internal components of the device, and also facilitates the disassembly and replacement of the cover plate 10, facilitating the maintenance and repair of the device.

[0030] In this embodiment, the inner shell 4 is made of insulating plastic material, which not only has good electrical insulation performance, but also can effectively prevent current leakage and electromagnetic interference. At the same time, this insulating plastic also has the characteristics of lightweight and easy to process, which not only ensures the safety performance of the product, but also facilitates production and assembly.

[0031] In summary, the lightning arrester falling online monitoring device of the present application realizes intelligent perception of the running state of the lightning arrester through structural design. The core is to use the physical contact relationship between the micro switch 6 and the bottom of the lightning arrester to build a state detection mechanism. When the lightning arrester falls due to lightning or other external forces, the button end of the micro switch 6 originally pressed on the bottom of the lightning arrester loses the pressure effect, triggers the switch state change, and the control unit captures this change and generates a fault signal in time. The lightning arrester falling online monitoring device can monitor the online running state of the lightning arrester in real time. Once lightning falls and damages, it can actively send out fault information and accurately locate the fault position, so that line maintenance personnel can quickly lock the fault point for replacement, completely changing the traditional inefficient mode of relying on manual patrol to find fault points, significantly improving the fault response speed and maintenance efficiency, greatly reducing the time cost and human resource investment of manual patrol, and providing effective technical support for the reliable operation of the power system. Therefore, the present application effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0032] It can be understood that, for those skilled in the art, equivalent replacements or changes can be made according to the technical solutions and inventive concepts of the present application, and all such changes or replacements shall belong to the protection scope of the present application.

Claims

1. A device for monitoring the shedding of a surge arrester, characterized in that The utility model relates to a lightning arrester signal acquisition device, including: The outer shell (1) top is equipped with the installation hole (2) and the position avoidance hole (3), and the bottom has the opening; The inner shell (4) is arranged in the inner chamber of the outer shell (1), and the top extends upward and forms a hollow boss (5), and the bottom has the opening; The microswitch (6) is embedded in the hollow boss (5), and the button end is exposed to the opening end of the hollow boss (5); Control unit; Be arranged in the inner shell (4) with microswitch (6) electric connection; Wherein, the hollow boss (5) passes through the position avoidance hole (3) and extends out of the outer shell (1), and the button end is configured to be pressed on the bottom of the lightning arrester;The outer shell (1) is fixed on the lightning arrester through the installation hole (2).

2. The line monitoring device for arrester detachment according to claim 1, characterized in that, The control unit includes the control mainboard (7) and power (8) electrically connected;The microswitch (6) signal is connected to the control mainboard (7);The control mainboard (7) is integrated with a wireless communication module for communication with an external signal collector.

3. The line monitoring device of claim 2, wherein the line monitoring device is configured to monitor the line for a lightning event. The inner side of the top plate of the inner shell (4) is provided with a blind hole (9), and the control mainboard (7) is fixedly installed in the blind hole (9).

4. The line monitoring device of claim 1, wherein, It also includes a cover plate (10) for detachably plugging the opening of the outer shell (1) and the bottom of the inner shell (4).

5. The line monitoring device of claim 4, wherein the line monitoring device is configured to monitor the line for a lightning event. The inner wall of the outer shell (1) is provided with a guide column (11), and the outer wall of the inner shell (4) is provided with a guide groove (12) matched with the guide column (11).

6. The line monitoring device of claim 5, wherein the line monitoring device is configured to monitor the line for a lightning event. The bottom of the guide column (11) is provided with a first screw hole (13), and the inner wall of the inner shell (4) is provided with a second screw hole (14), and the cover plate (10) is locked in the first screw hole (13) and the second screw hole (14) by fixing screws.

7. The arrester falling-off on-line monitoring device according to claim 1, characterized in that, The top of the outer shell (1) is provided with a protective flange (15) around the installation hole (2) and the position avoidance hole (3).

8. The line monitoring device of claim 1, wherein, The inner shell (4) is made of insulating plastic.

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