Low-voltage line safety monitoring device

Abstract

The utility model provides a low-voltage line safety monitoring device which comprises a seat frame, one side of the seat frame is provided with a solar panel, the other side of the seat frame is provided with a solar cell controller, a monitoring device and a fixing clamp, the solar panel is electrically connected with the solar cell controller, and the monitoring device is electrically connected with the fixing clamp. The monitoring device is electrically connected with the solar cell controller; the fixing clamp is used for being connected with an overhead structure of a low-voltage line, and the monitoring device is used for monitoring the abnormal electric leakage state of the overhead structure and sending the abnormal electric leakage state to a background server. According to the utility model, the overall structure is small, exquisite and light, and the monitoring device is used for monitoring the electric leakage abnormal state of the overhead structure and sending the electric leakage abnormal state to the background server, so that a worker can timely find the electric leakage condition of a low-voltage line and can conveniently and timely work to eliminate the potential safety hazard after electric leakage; the power supply required by operation is maintained by solar power generation, which is green and economical.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage line protection technical field, concretely relates to a low voltage line safety monitoring device. BACKGROUND

[0002] With the development of power supply and distribution technology of power system, the length of distribution network low voltage cable is longer and longer. But due to the serious mismatch between the speed of line updating and reconstruction and the growth rate of power demand, many distribution network lines are in a long-term substandard operation state, among which the overhead conductor of old distribution network low voltage line has the most prominent problem caused by the traditional fixing mode of street code matching iron wire binding: this fixing mode is applied for a long time and covers a wide range, and in the long-time operation process, the iron wire binding is easy to be corroded, so that the position of street code and conductor often appears insulation damage, and the risk of electric leakage is easy to appear, especially when it rains, the wall or concrete pole at the street code fixing place is easy to be electrified, which may endanger the life safety of people at any time, and there is a serious electric-related public safety hidden danger.

[0003] A product device for monitoring and evaluating the operation state of cable at street code is needed to deal with the electric-related public safety hidden danger caused by cable electric leakage. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims at providing a low voltage line safety monitoring device to prevent the electric-related public safety hidden danger caused by cable electric leakage.

[0005] In order to solve the above technical problem, the technical scheme used by the utility model is as follows:

[0006] The low voltage line safety monitoring device comprises a seat frame, a solar panel is arranged on one side of the seat frame, a solar cell controller, a monitoring device and a fixing clamp are arranged on the other side of the seat frame, the solar panel is electrically connected with the solar cell controller, the monitoring device is electrically connected with the solar cell controller.

[0007] The fixing clamp is used for connecting with the overhead structure of low voltage line, the monitoring device is used for monitoring the electric leakage abnormal state of the overhead structure, and the electric leakage abnormal state is sent to the background server.

[0008] Preferably, a fixing plate is arranged on the other side of the seat frame, the solar cell controller, the monitoring device and the fixing clamp are arranged on the fixing plate, a wiring space is arranged between the fixing plate and the solar panel, and the wiring space is used for wiring of the solar cell controller and the monitoring device.

[0009] Further preferably, the fixing plate is provided with a first through hole, and the first through hole is used for passing through the cable to enter the wiring space.

[0010] And / or, both ends of the fixing plate are detachably connected to the base frame;

[0011] And / or, the fixing plate includes a first plate portion and a second plate portion spaced apart, the first plate portion being located in the middle of the base frame, the second plate portion being located on the side of the base frame, and the upper and lower ends of the first plate portion and the second plate portion being detachably connected to the base frame respectively; folded edge plates are respectively provided on the left and right sides of the first plate portion and the second plate portion; the solar cell controller, the monitoring device and the fixing clamp are each fixed to the first plate portion or the second plate portion.

[0012] More preferably, the fixing plate is provided with a snap-fit ​​part, one end of the fixing clamp is inserted into the snap-fit ​​part and detachably connected to the fixing plate, and the other end of the fixing clamp is provided with a clamp assembly, which is used to connect to the overhead structure of the low-voltage line.

[0013] More preferably, the fixing clamp includes a connecting part, one end of which is provided with a clamping plate, and the other end of which is provided with the clamping assembly;

[0014] The latching part includes a first latching member, a second latching member is provided on one side of the first latching member, and a third latching member is provided on the other side accordingly. The first latching member, together with the second latching members and the third latching members on both sides, forms a latching position.

[0015] After the card plate is inserted into the card slot, it engages with the first card slot, the second card slot, and the third card slot.

[0016] More preferably, the area where the fixing plate overlaps with the snap-fit ​​position is provided with a second through hole;

[0017] And / or, the card plate is trapezoidal, and the first card connector, the second card connector and the third card connector are all L-shaped with the folded edge facing the card position, and the second card connector and the third card connector are disposed on both sides of the first card connector.

[0018] More preferably, the monitoring device includes:

[0019] The data acquisition module is used to acquire voltage data and temperature data at the overhead structure. The voltage data includes first voltage data and second voltage data. The first voltage data is the voltage data at the overhead structure, and the second voltage data is the voltage data of the solar cell.

[0020] The processing module is used to determine the leakage status of the cables at the overhead structure based on the temperature data and the voltage data.

[0021] The communication module is used to send the judgment result and the information of the overhead structure to the backend server.

[0022] More preferably, the processing module includes:

[0023] A voltage difference acquisition module is used to acquire the monitoring voltage difference based on the first voltage data and the second voltage data;

[0024] A time acquisition module is used to acquire the duration of the voltage difference based on the monitored voltage difference;

[0025] The temperature processing module is used to obtain the monitored temperature based on the temperature data;

[0026] A temperature judgment module is used to determine the temperature status of the overhead structure based on the monitored temperature and a temperature threshold; the temperature threshold is the highest temperature at which the overhead structure can maintain safe operation of the cables.

[0027] The leakage current detection module is used to determine the leakage current status of the cable at the overhead structure based on the monitored voltage difference and voltage difference threshold, the monitored temperature and temperature threshold, and the voltage difference maintenance time and time maintenance threshold; the voltage difference threshold is the maximum voltage difference at which the overhead structure keeps the cable from leaking current, and the time maintenance threshold is the maximum time difference at which the overhead structure keeps the cable from leaking current.

[0028] More preferably, the temperature processing module is also used to obtain the average temperature over a preset time period based on the temperature data;

[0029] The processing module also includes,

[0030] The short-circuit detection module is used to determine the short-circuit status of the cable at the overhead structure based on the monitored temperature and the average temperature after the leakage detection module issues a leakage detection result.

[0031] Preferably, an alarm device is also provided on the other side of the mounting frame. The alarm device is electrically connected to the monitoring device and electrically connected to the solar cell controller.

[0032] The alarm device is used to generate a leakage alarm signal when the monitoring device makes a first leakage judgment result;

[0033] And / or, the alarm device generates a short-circuit alarm signal when the monitoring device makes a second leakage current judgment result.

[0034] Compared with the prior art, the advantages of the low-voltage line safety monitoring device of this utility model are mainly reflected in:

[0035] This invention integrates the solar panel, solar cell controller, and monitoring device into the mounting frame. The safety monitoring device is then fixed to the overhead structure of the low-voltage line using the fixing clamps. The overall structure is compact and lightweight, requiring minimal space for on-site installation, and does not significantly affect the load-bearing deformation of the overhead cable structure. It is also easy to transport and disassemble. The monitoring device monitors the leakage abnormality of the overhead structure and sends the abnormality to the backend server, enabling staff to promptly detect leakage in the low-voltage line and take timely action to eliminate potential safety hazards. This provides a product device that can effectively monitor leakage in low-voltage lines. The device utilizes solar power to maintain its operating power, making it green and economical, and also reducing the workload of staff during inspections. Attached Figure Description

[0036] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0037] Figure 1 A three-dimensional structure of a low-voltage line safety monitoring device provided in this embodiment of the utility model. Figure 1 ;

[0038] Figure 2 A three-dimensional structure of a low-voltage line safety monitoring device provided in this embodiment of the utility model. Figure 2 (Hidden part of the structure);

[0039] Figure 3 A three-dimensional structure of a low-voltage line safety monitoring device provided in this embodiment of the utility model. Figure 3 ;

[0040] Figure 4 A three-dimensional structure of a low-voltage line safety monitoring device provided in this embodiment of the utility model. Figure 4 (Hidden part of the structure);

[0041] Figure 5 A structural block diagram of the monitoring device provided in this embodiment of the utility model;

[0042] Figure 6 The working signaling diagram of the monitoring device provided in this embodiment of the utility model;

[0043] Figure description: 1. Frame; 2. Solar panel; 3. Solar cell controller; 4. Monitoring device; 5. Fixing clamp; 6. Fixing plate; 610. First plate part; 620. Second plate part; 7. Wiring space; 8. First through hole; 9. Folded edge plate; 10. Rod; 11. Clamping plate; 12. Clamping assembly; 13. Clamping part; 131. First clamping piece; 132. Second clamping piece; 133. Third clamping piece; 134. Clamping position; 14. Alarm device; 15. Second through hole. Detailed Implementation

[0044] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand this utility model and implement it. However, the embodiments are not intended to limit this utility model. In this embodiment, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0045] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to and integrated with the other element, or there may be an intervening element present. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.

[0046] This embodiment provides a low-voltage line safety monitoring device 4, such as Figures 1 to 6 As shown, the device includes a frame 1, with a solar panel 2 on one side and a solar cell controller 3, a monitoring device 4, and a fixing clamp 5 on the other side. The solar panel 2 is electrically connected to the solar cell controller 3, and the monitoring device 4 is electrically connected to the solar cell controller 3. The fixing clamp 5 is used to connect to the overhead structure of the low-voltage line, and the monitoring device 4 is used to monitor the leakage abnormality of the overhead structure and send the leakage abnormality to the backend server.

[0047] This invention integrates a solar panel 2, a solar cell controller 3, and a monitoring device 4 into a base 1. The safety monitoring device 4 is then fixed to the overhead structure of a low-voltage line (such as a pole, street bar, overhead angle iron, or other conductive structure near the cable) using a fixing clamp 5. The overall structure is compact and lightweight, requiring minimal space for on-site installation. It does not significantly affect the load-bearing deformation of the overhead cable structure and is easy to transport and disassemble. The monitoring device 4 monitors the leakage abnormality of the overhead structure and sends the abnormality to a backend server, enabling staff to promptly detect leakage in low-voltage lines and take timely action to eliminate potential safety hazards. This provides an effective device for monitoring leakage in low-voltage lines. Furthermore, the device utilizes solar power to maintain its operating power, making it green and economical, and reducing the workload of staff during inspections.

[0048] In a preferred embodiment, such as Figure 2 and 3 As shown, a fixing plate 6 is provided on the other side of the bracket 1. The solar cell controller 3, the monitoring device 4, and the fixing clamp 5 are respectively set on the fixing plate 6. A wiring space 7 is provided between the fixing plate 6 and the solar panel 2. The wiring space 7 is used for wiring of the solar cell controller 3 and the monitoring device 4. In this embodiment, the wiring space 7 is provided between the fixing plate 6 and the solar panel 2. The solar panel 2 and the fixing plate 6 can be used to cover the wiring, avoid the wiring from being exposed, and make the appearance of the device clearer and more orderly.

[0049] In a further preferred embodiment, the fixing plate 6 is provided with a first through hole 8, which allows the cable to pass through and enter the wiring space 7. It should be noted that the first through hole 8 can also serve as a weight reduction hole to reduce the overall weight of the device. The shape, number and position of the first through hole 8 can be set according to the arrangement.

[0050] The fixing plate 6 is detachably connected to the base frame 1 at both ends using methods such as screws or clips. In a preferred embodiment, the fixing plate 6 includes a first plate portion 610 and a second plate portion 620 spaced apart. The first plate portion 610 is located in the middle of the base frame 1, and the second plate portion 620 is located on the side of the base frame 1. The upper and lower ends of the first plate portion 610 and the second plate portion 620 are detachably connected to the base frame 1. Folded edge plates 9 are provided on the left and right sides of the first plate portion 610 and the second plate portion 620, which can improve the structural strength of the first plate portion 610 and the second plate portion 620. Specifically, the folded edge plates 9 preferably extend into the wiring space 7. The solar cell controller 3, the monitoring device 4, and the fixing clamp 5 are each fixed to the first plate portion 610 or the second plate portion 620, which facilitates step-by-step installation and partial disassembly and repair. Preferably, as shown in the figure, the fixing plate 6 is detachably connected to the base frame 1 using methods such as screws or clips. Figure 3The arrangement shown allows the center of gravity of the device to be set in the middle, and after the fixing clamp 5 is set on the first plate 610, the device can remain stable even in harsh weather during long-term use.

[0051] In a further preferred embodiment, such as Figure 3 As shown, the fixing plate 6 is provided with a snap-fit ​​part 13. One end of the fixing clamp 5 is inserted into the snap-fit ​​part 13 and detachably connected to the fixing plate 6. The other end of the fixing clamp 5 is provided with a clamp assembly 12, which is used to connect with the overhead structure of the low-voltage line.

[0052] In a preferred embodiment, such as Figure 3 and Figure 4 As shown, the fixing clamp 5 includes a connecting part, with a clamping plate 11 at one end and a clamping assembly 12 at the other end; the engaging part 13 includes a first engaging member 131, a second engaging member 132 on one side of the first engaging member 131, and a third engaging member 133 on the other side. The first engaging member 131, together with the second engaging members 132 and the third engaging members 133 on both sides, forms an engaging position 134; after the clamping plate 11 is inserted into the engaging position 134, it engages with the first engaging member 131, the second engaging member 132, and the third engaging member 133. In this embodiment, the fixing clamp 5 can be quickly connected to or disassembled from the fixing plate 6. In this embodiment, the connecting part is a rod 10, but in other embodiments, it can also be a component structure.

[0053] In a further preferred embodiment, such as Figure 3 and Figure 4 As shown, the card plate 11 is trapezoidal. The first carding member 131, the second carding member 132, and the third carding member 133 are all L-shaped with their folded edges facing the carding position 134. The second carding member 132 and the third carding member 133 are disposed on both sides of the first carding member 131. In this embodiment, after the card plate 11 is inserted into the carding position 134, the first carding member 131, the second carding member 132, and the third carding member 133 form a carding hold with the card plate 11. At the same time, the first carding member 131 can lock the card plate 11 to prevent it from loosening out of the carding position 134 due to the weight of the device. The area where the fixing plate 6 overlaps with the carding position 134 is provided with a second through hole 15 for weight reduction.

[0054] In a preferred embodiment, such as Figure 5 As shown, the monitoring device 4 includes:

[0055] The data acquisition module is used to acquire voltage data and temperature data at the overhead structure. The voltage data includes first voltage data and second voltage data. The first voltage data is the voltage data at the overhead structure, and the second voltage data is the voltage data of the solar cells.

[0056] The processing module is used to determine the leakage status of cables in the overhead structure based on temperature and voltage data.

[0057] The communication module is used to send the judgment results and the information of the overhead structure to the back-end server; the information of the overhead structure includes the location data, temperature data and voltage data of the overhead structure.

[0058] In a preferred embodiment, the processing module includes:

[0059] The voltage difference acquisition module is used to acquire the monitoring voltage difference based on the first voltage data and the second voltage data.

[0060] The time acquisition module is used to obtain the duration of the voltage difference based on the monitored voltage difference.

[0061] The temperature processing module is used to obtain the monitored temperature based on the temperature data.

[0062] The temperature judgment module is used to determine the temperature status of the overhead structure based on the monitored temperature and the temperature threshold; the temperature threshold is the highest temperature at which the overhead structure can maintain safe operation of the cables.

[0063] Leakage current detection module, such as Figure 6 As shown, it is used to determine the leakage status of cables at overhead structures based on the monitored voltage difference and voltage difference threshold, the monitored temperature and temperature threshold, and the voltage difference maintenance time and time maintenance threshold; the voltage difference threshold is the maximum voltage difference at which the overhead structure can keep the cable from leaking, and the time maintenance threshold is the maximum time difference at which the overhead structure can keep the cable from leaking.

[0064] In a preferred embodiment, the temperature processing module is further configured to obtain the average temperature over a preset time period based on the temperature data. The preset time period can be measured in days, weeks, or months, etc.

[0065] The processing module also includes a short-circuit detection module, which, after the leakage current detection module issues a leakage current detection result, determines the short-circuit status of the cables at the overhead structure based on the monitored temperature and the average temperature. Specifically, if the monitored temperature is greater than the average temperature, it can be concluded that a short circuit has occurred in the cables at the overhead structure.

[0066] In a preferred embodiment, such as Figure 3 As shown, an alarm device 14 is also provided on the other side of the bracket 1. The alarm device 14 is electrically connected to the monitoring device 4 and electrically connected to the solar cell controller 3.

[0067] Alarm device 14 is used to generate a leakage current alarm signal when monitoring device 4 makes a first leakage current judgment result; and / or, alarm device 14 generates a short circuit alarm signal when monitoring device 4 makes a second leakage current judgment result. The first leakage current judgment result is the judgment result of the leakage current state, and the second leakage current judgment result is the judgment result of the short circuit state. Alarm device 14 can be an audible and visual alarm or other forms of alarm. When alarm device 14 is an electrically operated drop-out fuse, when it receives a leakage current or short circuit abnormality alarm command, the processing module can cause the electrically operated drop-out fuse to trip, thereby achieving the purpose of automatically eliminating the risk.

[0068] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0069] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A low-voltage line safety monitoring device, characterized in that: The device includes a base, on one side of which a solar panel is mounted, and on the other side which a solar cell controller, a monitoring device, and a fixing clamp are mounted. The solar panel is electrically connected to the solar cell controller, and the monitoring device is electrically connected to the solar cell controller. The fixing clamp is used to connect to the overhead structure of the low-voltage line, and the monitoring device is used to monitor the leakage abnormality of the overhead structure and send the leakage abnormality to the background server.

2. The low-voltage line safety monitoring device according to claim 1, characterized in that: A fixing plate is provided on the other side of the frame. The solar cell controller, monitoring device and fixing clamp are respectively installed on the fixing plate. A wiring space is provided between the fixing plate and the solar panel for the solar cell controller and the monitoring device to run their wires.

3. The low-voltage line safety monitoring device according to claim 2, characterized in that: The fixing plate is provided with a first through hole, which allows the cable to pass through and enter the wiring space; And / or, both ends of the fixing plate are detachably connected to the base frame; And / or, the fixing plate includes a first plate portion and a second plate portion spaced apart, the first plate portion being located in the middle of the base frame, the second plate portion being located on the side of the base frame, and the upper and lower ends of the first plate portion and the second plate portion being detachably connected to the base frame respectively; folded edge plates are respectively provided on the left and right sides of the first plate portion and the second plate portion; the solar cell controller, the monitoring device and the fixing clamp are each fixed to the first plate portion or the second plate portion.

4. A low-voltage line safety monitoring device according to claim 2, characterized in that: The fixing plate is provided with a snap-fit ​​part. One end of the fixing clamp is inserted into the snap-fit ​​part and detachably connected to the fixing plate. The other end of the fixing clamp is provided with a clamp assembly, which is used to connect to the overhead structure of the low-voltage line.

5. A low-voltage line safety monitoring device according to claim 4, characterized in that: The fixing clamp includes a connecting part, one end of which is provided with a clamping plate, and the other end of which is provided with the clamping assembly; The latching part includes a first latching member, a second latching member is provided on one side of the first latching member, and a third latching member is provided on the other side accordingly. The first latching member, together with the second latching members and the third latching members on both sides, forms a latching position. After the card plate is inserted into the card slot, it engages with the first card slot, the second card slot, and the third card slot.

6. A low-voltage line safety monitoring device according to claim 5, characterized in that: A second through hole is provided in the area where the fixing plate overlaps with the snap-fit ​​position; And / or, the card plate is trapezoidal, and the first card connector, the second card connector and the third card connector are all L-shaped with the folded edge facing the card position, and the second card connector and the third card connector are disposed on both sides of the first card connector.

7. A low-voltage line safety monitoring device according to any one of claims 1 to 6, characterized in that, The monitoring device includes: The data acquisition module is used to acquire voltage data and temperature data at the overhead structure. The voltage data includes first voltage data and second voltage data. The first voltage data is the voltage data at the overhead structure, and the second voltage data is the voltage data of the solar cell. The processing module is used to determine the leakage status of the cables at the overhead structure based on the temperature data and the voltage data. The communication module is used to send the judgment result and the information of the overhead structure to the backend server.

8. A low-voltage line safety monitoring device according to claim 7, characterized in that, The processing module includes: A voltage difference acquisition module is used to acquire the monitoring voltage difference based on the first voltage data and the second voltage data; A time acquisition module is used to acquire the duration of the voltage difference based on the monitored voltage difference; The temperature processing module is used to obtain the monitored temperature based on the temperature data; A temperature judgment module is used to determine the temperature status of the overhead structure based on the monitored temperature and a temperature threshold; the temperature threshold is the highest temperature at which the overhead structure can maintain safe operation of the cables. The leakage current detection module is used to determine the leakage current status of the cable at the overhead structure based on the monitored voltage difference and voltage difference threshold, the monitored temperature and temperature threshold, and the voltage difference maintenance time and time maintenance threshold; the voltage difference threshold is the maximum voltage difference at which the overhead structure keeps the cable from leaking current, and the time maintenance threshold is the maximum time difference at which the overhead structure keeps the cable from leaking current.

9. A low-voltage line safety monitoring device according to claim 8, characterized in that: The temperature processing module is also used to obtain the average temperature over a preset time period based on the temperature data; The processing module also includes, The short-circuit detection module is used to determine the short-circuit status of the cable at the overhead structure based on the monitored temperature and the average temperature after the leakage detection module issues a leakage detection result.

10. A low-voltage line safety monitoring device according to claim 1, characterized in that: An alarm device is also provided on the other side of the frame. The alarm device is electrically connected to the monitoring device and electrically connected to the solar cell controller. The alarm device is used to generate a leakage alarm signal when the monitoring device makes a first leakage judgment result; And / or, the alarm device generates a short-circuit alarm signal when the monitoring device makes a second leakage current judgment result.

Images