Load temperature rise monitoring device for wire connection point of power distribution network

Abstract

The invention discloses a power distribution network wire connection point load temperature rise monitoring device, and relates to the field of power monitoring, the power distribution network wire connection point load temperature rise monitoring device comprises a clamping assembly, a temperature conduction sheet and a wireless temperature sensor, the clamping assembly comprises an upper clamping plate, a lower clamping plate and at least one stud, and a protruding part of the lower surface of the upper clamping plate is provided with a butt joint groove; the upper surface of the lower clamping plate is provided with a butt joint matched with the butt joint groove, when the upper clamping plate and the lower clamping plate are buckled, the butt joint is embedded into the butt joint groove, the upper clamping plate and the lower clamping plate are locked and fixed, a to-be-connected wire can be tightly wrapped, stable contact with a connection point is ensured, the temperature conduction piece is made of a high-thermal-conductivity copper or aluminum material, and the temperature conduction piece is not prone to deformation. The pressing and fixing nut is tightly attached to the upper surface of the upper clamping plate, heat of the connection point can be rapidly conducted to the wireless temperature sensor in a loss-free mode, the temperature collection precision is greatly improved, the problems of missed judgment and misjudgment of temperature rise caused by inaccurate temperature measurement are effectively solved, and reliable data support is provided for connection point overheating fault early warning.

Description

Technical Field

[0001] This invention belongs to the field of power monitoring, specifically relating to a device for monitoring the load temperature rise at the conductor connection point of a power distribution network. Background Technology

[0002] As a crucial link in the power system directly connected to users, the operational stability of the distribution network is closely related to the reliability of power supply. In distribution network lines, conductor splicing points (such as joints, jumper points, etc.) are usually connected through splicing hardware, undertaking the important function of current transmission.

[0003] However, due to long-term operation in complex and harsh environments such as high temperature, humidity, wind and rain, and corrosion, the connection points are prone to increased contact resistance due to substandard installation process, material aging, loose connection caused by mechanical vibration, and oxidation and corrosion of contact surfaces.

[0004] As the load current continues to pass through, local overheating occurs at the connection point due to increased resistance, forming the so-called "temperature rise" phenomenon. If it is not detected and dealt with in time, the temperature rise will continue to intensify, which will not only accelerate material deterioration, but may also cause serious faults such as connection point ablation, wire melting, or even power outage, resulting in large-scale power outages and causing significant economic losses to the safe operation of the power grid and power-consuming enterprises.

[0005] Currently, the connection fittings widely used in power distribution networks typically lack temperature monitoring capabilities, requiring additional temperature measurement equipment. However, existing external temperature measurement devices suffer from poor adaptability in their clamping structure design, making it difficult to achieve a tight fit with various fitting surfaces. This results in low heat transfer efficiency, limited temperature acquisition accuracy, and an inability to accurately reflect the true temperature rise at the connection point. Furthermore, the installation process for these devices is complex, hindering rapid integration with the fittings and impeding their widespread application in power distribution networks.

[0006] Therefore, we propose a load temperature rise monitoring device for conductor splicing points in power distribution networks to solve the above problems. Summary of the Invention

[0007] To address the problem that the connection fittings widely used in power distribution networks typically lack temperature monitoring capabilities, this invention provides a load temperature rise monitoring device for conductor connection points in power distribution networks.

[0008] The solution adopted by this invention to solve its technical problem is: a load temperature rise monitoring device for conductor splicing points in a power distribution network, comprising a clamping assembly, a temperature-conducting plate, and a wireless temperature sensor. The clamping assembly includes an upper clamping plate, a lower clamping plate, and at least one stud. The upper clamp plate has a protruding part on the lower surface with a mating groove, and the upper surface of the lower clamp plate has a connector that matches the mating groove. When the upper clamp plate and the lower clamp plate are fastened together, the connector is embedded in the mating groove, and the upper clamp plate and the lower clamp plate form two clamping spaces for accommodating two wires to be connected respectively. The stud is welded and fixed to the top of the connector, and its upper end protrudes through the through hole opened in the upper clamping plate. The temperature-conducting plate has a reserved hole adapted to the stud. The temperature-conducting plate is sleeved on the stud through the reserved hole and attached to the upper surface of the upper clamping plate. The wireless temperature sensor is installed on the upper surface of the temperature-conducting plate to monitor the temperature of the temperature-conducting plate and wirelessly transmit data. The upper end of the stud is threaded with a clamping nut, which locks the upper clamping plate and the lower clamping plate together while fixing the temperature-conducting plate.

[0009] Preferably, at least one threaded rod is fixed on each of the left and right sides of the lower clamping plate.

[0010] Preferably, it also includes two side clamps, each side clamp having a strip-shaped hole corresponding to the threaded rod. The end of the threaded rod passes through the strip-shaped hole and is threaded with a fastening nut, so that the side clamps move laterally along the threaded rod and abut against the side of the wire.

[0011] Preferably, the thermally conductive sheet is made of a metal thermally conductive material.

[0012] Preferably, the thermally conductive metal material is copper or aluminum.

[0013] Preferably, the wireless temperature sensor is mounted on the temperature-conducting sheet by adhesive bonding or screw fixing.

[0014] Preferably, it also includes a monitoring host, which establishes a wireless communication connection with the wireless temperature sensor to receive the wire connection point temperature data transmitted by the wireless temperature sensor.

[0015] Preferably, the wireless communication network is a 4G, 5G, WiFi, or GPRS network.

[0016] Preferably, the monitoring host is further configured to upload the processed temperature data to the data monitoring client via a wireless communication network. The data monitoring client is used to receive and display the temperature data from the monitoring host for users to view and analyze.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses an upper and lower clamping plate to lock and fix the wire to be connected, which can tightly wrap the wire to be connected and ensure stable contact with the connection point. The temperature conducting sheet is made of copper or aluminum with high thermal conductivity and is tightly attached to the upper surface of the upper clamping plate by a clamping nut. It can quickly and losslessly conduct heat from the connection point to the wireless temperature sensor, which can greatly improve the temperature acquisition accuracy and effectively avoid the problem of missed or false temperature rise due to inaccurate temperature measurement. It provides reliable data support for the early warning of overheating faults at the connection point.

[0018] 2. This invention forms two independent clamping spaces by enclosing an upper clamping plate and a lower clamping plate, which can accurately accommodate two wires to be spliced, adapting to common wire splicing scenarios. Furthermore, by adding threaded rods and side clamping plates on the left and right sides of the lower clamping plate, the side clamping plates can flexibly move laterally along the threaded rod through strip holes, adjusting the clamping position according to the wire diameter and tightly abutting against the side of the wire, achieving stable clamping of wires of different specifications, thereby improving the adaptability of the device.

[0019] 3. This invention uses a wireless temperature sensor to collect temperature data in real time and transmit it to a monitoring host. The monitoring host uploads the processed temperature data to a data monitoring client via flexible wireless communication networks such as 4G, 5G, WiFi, or GPRS. Staff can remotely view the temperature changes at each connection point in real time through the data monitoring client, enabling them to monitor the equipment's operating status without on-site inspections. In the event of abnormal temperature rise, the fault point can be quickly located and dealt with promptly, effectively preventing serious faults such as connection point burning, wire melting, and power outages caused by escalating temperature rise. This reduces economic losses caused by large-scale power outages and significantly improves the efficiency of power distribution network operation and maintenance and the reliability of power supply.

[0020] 4. This invention, through the cooperation of studs and clamping nuts, can not only fix the temperature-conducting sheet, but also simultaneously lock and fix the upper and lower clamping plates. The operation is simple and convenient, and no other fixing structure is required to fix the temperature-conducting sheet and wireless temperature sensor, thus reducing the number of parts. Attached Figure Description

[0021] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention; Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention; Figure 3 This is a front view structural diagram of the present invention.

[0022] In the diagram: 1 Upper clamping plate, 11 Connecting groove, 21 Lower clamping plate, 22 Threaded rod, 23 Connecting joint, 3 Side clamping plate, 31 Strip hole, 4 Fastening nut, 51 Stud, 52 Press-fit nut, 6 Temperature conductive plate, 7 Wireless temperature sensor. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figure 1-3 This invention provides a technical solution for a load temperature rise monitoring device at the conductor splice point in a power distribution network: Example 1: according to Figure 1 and Figure 2 As shown, it includes a clamping assembly, a temperature conductive plate 6, and a wireless temperature sensor 7. The clamping assembly includes an upper clamping plate 1, a lower clamping plate 21, and at least one stud 51.

[0025] The upper clamping plate 1 has a protruding part on its lower surface with a mating groove 11, and the lower clamping plate 21 has a connector 23 on its upper surface that is compatible with the mating groove 11. When the upper clamping plate 1 and the lower clamping plate 21 are fastened together, the connector 23 is embedded in the mating groove 11, which can effectively prevent the upper clamping plate 1 and the lower clamping plate 21 from being misaligned laterally, while enhancing the structural stability. The upper clamping plate 1 and the lower clamping plate 21 together form two clamping spaces for accommodating two wires to be spliced, which are suitable for common wire splicing scenarios.

[0026] The stud 51 is welded and fixed to the top of the connector 23. Its upper end protrudes through the through hole opened in the upper clamping plate 1, which can effectively prevent the upper clamping plate 1 and the lower clamping plate 21 from being misaligned longitudinally and ensure the stability of the connection between the upper clamping plate 1 and the lower clamping plate 21.

[0027] The temperature-conducting plate 6 is made of a metal thermally conductive material, such as copper or aluminum. A pre-drilled hole is provided on the temperature-conducting plate 6 to fit the stud 51. The temperature-conducting plate 6 is fitted onto the stud 51 through the pre-drilled hole and adheres to the upper surface of the upper clamping plate 1. The wireless temperature sensor 7 is installed on the upper surface of the temperature-conducting plate 6 by adhesive bonding or screw fixing. The temperature-conducting plate 6 is made of copper or aluminum with high thermal conductivity and is tightly fitted to the upper surface of the upper clamping plate 1 by a clamping nut 52. This allows for rapid and lossless heat transfer from the connection point to the wireless temperature sensor 7, significantly improving temperature acquisition accuracy and effectively avoiding missed or false temperature rise detections due to inaccurate temperature measurement. This provides reliable data support for early warning of overheating faults at the connection point. The wireless temperature sensor 7 is used to monitor the temperature of the temperature-conducting plate 6 and wirelessly transmit data.

[0028] The upper end of the stud 51 is threaded with a clamping nut 52, which can not only fix the temperature conductor 6, but also simultaneously lock the upper clamp 1 and the lower clamp 21. The operation is simple and convenient, and no other fixing structure is needed to fix the temperature conductor 6 and the wireless temperature sensor 7, thus reducing the number of parts.

[0029] In practical use, the load temperature rise monitoring device for the connection point of the distribution network conductor of the present invention first places the two conductors to be connected on the left and right sides of the lower clamping plate 21 respectively. Then, the upper clamping plate 1 and the lower clamping plate 21 are fastened together so that the butt joint 23 is fully embedded in the butt groove 11. At the same time, the stud 51 passes through the through hole of the upper clamping plate 1. Then, the reserved hole of the temperature conducting plate 6 is aligned with the upper end of the stud 51, and it is fitted and tightly attached to the upper surface of the upper clamping plate 1. Subsequently, the pressure nut 52 is screwed into the upper end of the stud 51 and gradually tightened so that the temperature conducting plate 6, the upper clamping plate 1 and the lower clamping plate 21 are pressed together as one. Finally, the wireless temperature sensor 7 is activated to confirm that it communicates normally with the monitoring host. After the device is installed, the heat conduction plate 6 will conduct the heat of the wire connection point to the wireless temperature sensor 7 in real time. The wireless temperature sensor 7 collects temperature data and transmits it wirelessly to the monitoring host to realize continuous monitoring and early warning of the temperature rise at the connection point.

[0030] Example 2: Based on Example 1, such as Figure 1-3 As shown, at least one threaded rod 22 is fixed on both the left and right sides of the lower clamping plate 21. In this embodiment, there are two threaded rods 22 on one side.

[0031] It also includes two side clamping plates 3, with strip-shaped holes 31 corresponding to the two threaded rods 22. The ends of the threaded rods 22 pass through the strip-shaped holes 31 and are threadedly connected to fastening nuts 4, so that the side clamping plates 3 can move flexibly laterally along the threaded rods 22 through the strip-shaped holes 31. The clamping position can be adjusted according to the diameter of the wire, and it can be tightly abutted against the side of the wire to achieve stable clamping of wires of different specifications, thereby improving the adaptability of the device.

[0032] Example 3: Based on Embodiment 1, the differences are as follows: it also includes a monitoring host, which establishes a wireless communication connection with the wireless temperature sensor 7 to receive the conductor splice temperature data transmitted by the wireless temperature sensor 7. The monitoring host is also configured to upload the processed temperature data to the data monitoring client via a wireless communication network, which can be a 4G, 5G, WiFi, or GPRS network. The data monitoring client is used to receive and display the temperature data from the monitoring host for user viewing and analysis. The monitoring host and wireless temperature sensor used in this embodiment are existing technologies (such as the FH-900J transmission line hardware temperature online monitoring device).

[0033] Temperature data is collected in real time by a wireless temperature sensor 7 and transmitted to the monitoring host. The monitoring host uploads the processed temperature data to the data monitoring client via flexible wireless communication networks such as 4G, 5G, WiFi, or GPRS. Staff can remotely view the temperature changes of each connection point in real time through the data monitoring client, and can grasp the equipment operating status without on-site inspection. Once an abnormal temperature rise occurs, the fault point can be quickly located and dealt with in a timely manner, effectively avoiding serious faults such as connection point burning, wire melting, and line power outage caused by aggravated temperature rise, reducing the economic losses caused by large-scale power outages, and significantly improving the operation and maintenance efficiency and power supply reliability of the distribution network.

Claims

1. A device for monitoring load temperature rise at conductor splicing points in a power distribution network, comprising a clamping assembly, a temperature-conducting plate, and a wireless temperature sensor, characterized in that: The clamping assembly includes an upper clamping plate, a lower clamping plate, and at least one stud. The upper clamp plate has a protruding part on the lower surface with a mating groove, and the upper surface of the lower clamp plate has a connector that matches the mating groove. When the upper clamp plate and the lower clamp plate are fastened together, the connector is embedded in the mating groove, and the upper clamp plate and the lower clamp plate form two clamping spaces for accommodating two wires to be connected respectively. The stud is welded and fixed to the top of the connector, and its upper end protrudes through the through hole opened in the upper clamping plate. The temperature-conducting plate has a reserved hole adapted to the stud. The temperature-conducting plate is sleeved on the stud through the reserved hole and attached to the upper surface of the upper clamping plate. The wireless temperature sensor is installed on the upper surface of the temperature-conducting plate to monitor the temperature of the temperature-conducting plate and wirelessly transmit data. The upper end of the stud is threaded with a clamping nut, which locks the upper clamping plate and the lower clamping plate together while fixing the temperature-conducting plate.

2. The load temperature rise monitoring device at the conductor splice point of the power distribution network according to claim 1, characterized in that: At least one threaded rod is fixed to each of the left and right sides of the lower clamping plate.

3. The load temperature rise monitoring device for distribution network conductor splice points according to claim 2, characterized in that: It also includes two side clamps, each with a slotted hole corresponding to the threaded rod. The end of the threaded rod passes through the slotted hole and is threaded with a fastening nut, so that the side clamps can be moved laterally along the threaded rod and abut against the side of the wire.

4. The load temperature rise monitoring device at the junction point of power distribution network conductors according to claim 1, characterized in that: The thermally conductive sheet is made of a metal thermally conductive material.

5. The load temperature rise monitoring device for distribution network conductor splicing points according to claim 4, characterized in that: The thermally conductive metal material is copper or aluminum.

6. The load temperature rise monitoring device at the conductor splice point of the power distribution network according to claim 1, characterized in that: The wireless temperature sensor is mounted on the temperature-conducting plate by adhesive bonding or screw fixing.

7. The load temperature rise monitoring device for distribution network conductor splice points according to claim 1, characterized in that: It also includes a monitoring host, which establishes a wireless communication connection with the wireless temperature sensor to receive the wire connection point temperature data transmitted by the wireless temperature sensor.

8. The load temperature rise monitoring device for distribution network conductor splice points according to claim 7, characterized in that: The monitoring host is also configured to upload the processed temperature data to the data monitoring client via a wireless communication network. The data monitoring client is used to receive and display the temperature data from the monitoring host for users to view and analyze.

9. The load temperature rise monitoring device for distribution network conductor splice points according to claim 8, characterized in that: The wireless communication network is a 4G, 5G, WiFi, or GPRS network.

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