Fault detection device for pipe bundle cable

Abstract

This utility model relates to the field of cable monitoring technology, specifically a fault detection device for cable trays. It includes a housing and an outer shell connected to the top of the housing. The housing houses a signal processing module, while the outer shell houses a battery and a power control box. The top of the outer shell has a V-shaped sloping surface, with a solar panel mounted on top of the sloping surface. An electric push rod is mounted on the top surface of the outer shell. The fixed end of the electric push rod is movably connected to the outer shell, and the actuating end of the electric push rod pushes the edge of the solar panel, causing the solar panel to rotate to a set angle to obtain maximum power generation. This design addresses the problem of existing devices where the ventilation openings of the power supply section are easily damaged by rain. It also considers areas with frequent rainfall and relatively insufficient sunlight; therefore, it incorporates an deployable solar panel to solve the problem of power supply efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cable monitoring technology, specifically a fault detection device applicable to cable trays. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] When high-voltage power cables are buried in underground tunnels, existing technologies can achieve fault location and analysis through wired communication, fiber optic synchronization, and remote power supply. However, in some areas where cables are laid underground in duct trenches, the wired communication and remote power supply infrastructure within the tunnel cannot be reused, so the grounding box is placed above ground.

[0004] In this type of installation, the cable channels inside the pipe trench are discontinuous and enclosed spaces, and there may be physical isolation between the sections. Wired communication (such as industrial bus and Ethernet) relies on continuous physical line connections, making it difficult to achieve full continuity within the pipe trench.

[0005] Meanwhile, remote power supply is usually achieved by adding copper wires or composite optical cables to cables, but the segmented structure of the duct trench will increase the impedance of the power supply circuit (especially at high-resistance joints) and cause a significant voltage drop, making it difficult to meet the power requirements of the terminal equipment.

[0006] To address the aforementioned issues, the existing approach involves installing a grounding box on the ground, using wireless communication, and utilizing energy storage batteries in conjunction with solar panels to power the cable fault detection device. While this meets the cable operation requirements, the power generation efficiency of the solar panels is affected by changes in the angle of ambient light, resulting in low power generation efficiency. At the same time, when the grounding box is cooled using ventilation openings, rainwater can easily seep into the device, causing malfunctions. Utility Model Content

[0007] To address the technical problems mentioned above, this utility model provides a fault detection device suitable for cable ducts, which solves the problem that the ventilation openings of the power supply section in existing cable fault detection devices are easily affected by rainwater. In addition, considering that areas with frequent rainfall have relatively insufficient sunlight, an deployable solar panel is designed to solve the problem of power supply efficiency of the solar panel.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] This utility model provides a fault detection device suitable for cable trays, including a housing and an outer shell connected to the top of the housing. The housing is used to house a signal processing module, and the outer shell is used to house a battery and a power control box. The top of the outer shell has a V-shaped sloping surface, and a solar panel is installed on the top of the sloping surface. The top surface of the outer shell is equipped with an electric push rod. The fixed end of the electric push rod is movably connected to the outer shell. The moving end of the electric push rod pushes the edge of the solar panel, causing the solar panel to rotate to a set angle to obtain the maximum power generation.

[0010] Furthermore, ventilation openings are provided on two opposite sides of the outer casing, and a bracket is connected to the inside of the ventilation opening. The area covered by the bracket inside the ventilation opening is provided with a slope.

[0011] Furthermore, a dustproof net is connected to the back of the bracket, and sealant is applied to the contact surface between the bracket and the outer shell.

[0012] Furthermore, an antenna is located at the highest point of the sloping top surface of the casing to support wireless communication.

[0013] Furthermore, the solar panel is connected and fixed by a frame and a frame bracket, both of which are located on the back of the solar panel.

[0014] Furthermore, the solar panel is movably connected to the actuating end of the electric push rod via the frame, the frame bracket is movably connected to one end of the support rod, and the other end of the support rod is movably connected to the outer casing.

[0015] Furthermore, the top surface of the housing is provided with a groove to accommodate the electric actuator.

[0016] Furthermore, the top of the box is equipped with a cover fixing seat, and the outer shell is connected to the cover fixing seat.

[0017] Furthermore, the surface of the upper cover mounting base is provided with a power control box mounting base and a battery mounting base. Above the power control box mounting base is a data acquisition control box mounting base. The power control box mounting base 3 is used to fix the power control box, the data acquisition control box mounting base is used to fix the data acquisition control box, and the battery mounting base is used to fix the battery.

[0018] Furthermore, a light sensor is provided on the side of the casing to detect changes in ambient light and support the angle adjustment of the solar panel.

[0019] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0020] 1. Areas where cables are laid using the pipe-and-trench method are often located in regions with long rainy seasons and abundant annual rainfall. These areas have short hours of sunshine and weak sunlight intensity. Using solar panels for power supply may not be sufficient to meet the operational requirements of the cable fault detection device. Therefore, this solution designs the top of the device as an "A"-shaped sloping surface. Each side of the sloping surface is fixed with a solar panel facing a different angle. When the power is insufficient due to sunlight obstruction, the electric push rod is controlled to rotate one side of the solar panel to the set angle, helping the solar panel adjust to a suitable angle of sunlight, thereby improving charging efficiency.

[0021] 2. Cable fault detection devices are auxiliary facilities for cables. Areas where cables are laid in duct trenches are often located in regions with long rainy seasons and abundant annual rainfall. This makes it easy for rainwater carried by the air to enter the power supply section inside the cable fault detection device, causing faults. In this solution, the two ventilation openings, together with the internal support, form a concealed design. When rainwater carried by the air enters the device, it is blocked by the inclined part at the bottom of the support. The raindrops that are blocked are collected and discharged from the inclined part, preventing the intrusion of external rainwater. Attached Figure Description

[0022] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0023] Figure 1 This is a schematic diagram of the overall structure of the cable fault detection device provided by this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the cable fault detection device provided by this utility model in the open state of the solar panel;

[0025] Figure 3 This is a schematic diagram of the cable fault detection device provided by this utility model with the solar panel in the open state from another perspective;

[0026] Figure 4 This is a schematic diagram of the structure after the top cover fixing seat provided by this utility model is installed and fixed to the box body:

[0027] Figure 5 Here are structural schematic diagrams of the power control box and data acquisition control box provided by this utility model:

[0028] Figure 6 This is a schematic diagram of the concealed ventilation bracket and light sensor provided by this utility model:

[0029] Figure 7 Here is a schematic diagram of the structure of the solar panel provided by this utility model:

[0030] Figure 8 This is a schematic diagram of the antenna structure provided by this utility model;

[0031] Figure 9 This is a front view of the support structure inside the ventilation opening provided by this utility model;

[0032] Figure 10 This is a schematic diagram of the back structure of the bracket inside the ventilation opening provided by this utility model;

[0033] Figure 11 This is a schematic diagram of the structure of the ventilation opening provided by this utility model installed inside the outer shell.

[0034] In the diagram: 1. Housing, 2. Top cover mounting bracket, 3. Power control box mounting bracket, 4. Data collector control box mounting bracket, 5. Mounting column, 6. Battery mounting bracket, 7. Mounting bracket, 8. Power control box, 9. Data collector control box, 10. Battery, 11. Housing, 12. Light sensor, 13. Vent, 131. Bracket, 132. Dustproof net, 14. Solar panel, 15. Frame, 16. Frame mounting bracket, 17. Pin hinge, 18. Decorative parts, 19. Antenna, 20. Antenna protective cover, 21. Electric push rod, 22. H-type bracket, 23. U-type bracket, 24. Frame bracket, 25. Support rod mounting bracket, 26. L-type bracket, 27. Support rod. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0037] In high-voltage cable laying, underground trenches and underground tunnels are two typical laying methods, with significant differences in their design concepts, applicable scenarios, advantages and disadvantages.

[0038] Underground tunneling involves large concrete or steel structures that can accommodate multiple cable circuits and auxiliary equipment (such as ventilation and lighting). Personnel can directly enter the tunnel for inspection and maintenance, making maintenance convenient. Because the burial depth is typically over 5 meters underground, environmental stability is high, and junction boxes and various infrastructure are less affected by ambient temperature and humidity. However, initial construction costs are higher, generally suitable for long-distance backbone networks, but subsequent maintenance costs are low.

[0039] The trench method involves inserting one or more cables into pre-buried PVC or steel pipe trenches. These trenches are relatively shallow (usually 1-2 meters deep) and are easily affected by changes in surface temperature and humidity. The advantages are that they occupy little underground space, making them suitable for narrow roads or densely populated urban areas, and the initial construction cost is low. However, subsequent maintenance requires excavation, resulting in higher maintenance costs. This method is generally suitable for short-distance areas with a small number of cables (such as urban branch lines).

[0040] In actual engineering projects, in addition to considering the differences between the two burial methods, the climate and underground soil conditions of the construction area will also be taken into account.

[0041] For example, in some areas with high soil moisture content and high annual precipitation, since most of the construction area is soft soil foundation, deep tunnel excavation is prone to collapse or water seepage, increasing construction risks and costs. If underground tunnels are selected, additional waterproofing and drainage design is required, while shallow burial of pipe trenches can reduce the impact of groundwater.

[0042] For example, in some areas with long rainy seasons, water can easily accumulate in underground tunnels, leading to mold growth and threatening cable insulation; while distributed installation of conduits reduces the risk of localized humidity.

[0043] For example, in some areas where typhoons are frequent, shallow buried pipe trenches are more wind-resistant than overhead power lines and are easier to repair quickly than underground tunnels.

[0044] Cable fault detection devices are auxiliary facilities for high-voltage cables, used to monitor the operating status of high-voltage cables and locate faults. High-voltage cables laid in duct trenches, due to their shallow burial depth, have most of their auxiliary facilities concentrated in grounding boxes located on the ground. This makes the power supply facilities within the grounding box susceptible to faults caused by the influence of surface temperature and humidity. Specifically: regardless of the power supply method (battery, solar, or external power), power supply facilities typically rely on ventilation openings for heat dissipation. However, areas where cables are laid in duct trenches often have long rainy seasons and abundant annual rainfall, allowing rainwater to easily seep into the power supply section inside the cable fault detection device, thus causing faults.

[0045] The following embodiments provide a fault detection device suitable for cable ducts. The cable fault detection device is designed for cables laid in duct trenches to solve the problem that the ventilation openings of the power supply section in existing cable fault detection devices are easily invaded by rainwater. At the same time, considering that there is relatively insufficient sunlight in areas with frequent rainfall, an deployable solar panel is designed to solve the problem of power supply efficiency of the solar panel.

[0046] like Figures 1-3 As shown, the cable fault detection device includes a housing 1 and a housing 11 connected to the top of the housing 1. The housing is used to house the signal processing part of the fault detection device, and the housing 11 is used to house the power supply part.

[0047] At the highest point of the top of the housing 11, an antenna 19 is provided to support wireless communication.

[0048] The top of the housing 11 has two groups of inclined planes in a "human" shape, located on both sides of the antenna 19 respectively, for arranging the inclined solar panels 14. At least one group of solar panels 14 can change the inclination angle under the drive of the electric push rod 21. When there is insufficient power due to sunlight occlusion, the solar panels are adjusted to an appropriate sunlight irradiation angle.

[0049] Two opposite sides of the housing 11 are provided with ventilation openings 13. Inside the ventilation openings 13, there are brackets 131, and the brackets 131 are connected to the inside of the housing 11, forming a concealed ventilation opening.

[0050] When there is insufficient power due to sunlight occlusion, the solar panels will control the automatic telescoping of the electric push rod on the platform control to deploy the solar panels and adjust them to an appropriate sunlight irradiation angle. Specifically: as Figure 3 shown, the top surface of the housing 11 is provided with a groove for accommodating the electric push rod 21. The fixed end of the electric push rod 21 is movably connected to the groove of the housing 11 through an H-shaped bracket 22. The moving end of the electric push rod 21 is movably connected to the frame bracket 24 on the back of the solar panel 14 through a U-shaped bracket 23. The frame bracket 24 is located in the middle area on the back of the solar panel​​​​​​​​​​​​​​​​​​​

[0056] The collector control box mounting bracket 4 is used to fix the collector control box 9.

[0057] The battery holder 6 is used to fix the battery 10. Specifically, the battery holder 6 is provided with a fixing bracket 7, and the space enclosed by the battery holder 6 and the fixing bracket 7 is used to fix the battery 10.

[0058] like Figure 6 As shown, a light sensor 12 is provided on the side of the housing 11 to sense changes in ambient light, thereby supporting the angle adjustment of the solar panel 14.

[0059] like Figure 6 , Figures 9-11 As shown, the vent 13 is provided on two opposite sides of the outer casing 11. Inside the vent 13 is a bracket 131, which is connected to the dustproof net 132. The area of ​​the bracket 131 covered by the vent 13 is inclined.

[0060] During installation, silicone structural sealant is first applied to the contact surface between the ventilation bracket and the outer shell 11 for sealing, and then screws are installed for fixation. The rain-proof part at the lower end of the ventilation bracket is sloped so that rainwater can flow out quickly when it drips in, without water accumulation. Ordinary ventilation brackets are installed on the outside of the outer shell 11, which poses a risk of damage. Now, the ventilation bracket is installed inside the outer shell 11 to form a hidden design, which can better solve the protection requirements.

[0061] like Figure 7 As shown, the solar panel 14 is fixed in the frame 15. The frame 15 and the frame bracket 24 are connected together as components for fixing the solar panel 14. The frame 15 is connected to the frame fixing seat 16 through the pin hinge 17. The frame fixing seat 16 is connected to the outer shell 11.

[0062] like Figure 8 As shown, the antenna 19 is fixed at the highest point of the top of the housing 11, and the internal structure is shielded by the decorative piece 18. The antenna 19 has an antenna protective cover 20.

[0063] Areas where cables are laid in conduits or trenches are often located in regions with long rainy seasons and abundant annual rainfall. This makes it easy for rainwater carried by the air to seep into the power supply section inside the cable fault detection device, causing malfunctions. The aforementioned structure addresses this issue by featuring a concealed ventilation design to prevent rainwater intrusion during ventilation, and an adjustable solar panel to improve the efficiency of photovoltaic power supply. The part involving fault analysis based on cable signal detection is mature existing technology and will not be described in detail in this embodiment.

[0064] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fault detection device for a pipe bundle cable, characterized in that, It includes a housing and an outer shell connected to the top of the housing. The housing is used to house the signal processing module, and the outer shell is used to house the battery and power control box. The top of the outer shell has a sloping surface in the shape of a "V". A solar panel is installed on the top of the sloping surface. An electric push rod is installed on the top surface of the outer shell. The fixed end of the electric push rod is movably connected to the outer shell. The moving end of the electric push rod pushes the edge of the solar panel, causing the solar panel to rotate to a set angle to obtain the maximum power generation.

2. The fault detection device suitable for use with a pipe rack cable of claim 1, wherein, The outer casing has ventilation openings on two opposite sides, and a bracket is connected to the inside of the ventilation opening. The area covered by the bracket inside the ventilation opening has a slope.

3. The fault detection device suitable for use with a pipe rack cable of claim 1, wherein, The back of the bracket is connected to a dustproof net, and the contact surface between the bracket and the outer shell is covered with sealant.

4. The fault detection device for use with a pipe rack cable of claim 1, wherein, An antenna is located at the highest point of the sloping top surface of the outer casing to support wireless communication.

5. The fault detection device for use with a pipe rack cable of claim 1, wherein, The solar panel is connected and fixed by a frame and a frame bracket, both of which are located on the back of the solar panel.

6. The fault detection device suitable for use with a pipe rack cable of claim 5, wherein, The solar panel is movably connected to the actuating end of the electric push rod via a frame, and one end of the frame bracket is movably connected to the support rod, while the other end of the support rod is movably connected to the outer casing.

7. The fault detection device suitable for use with a pipe rack cable of claim 1, wherein, The top surface of the housing is provided with a groove for accommodating an electric push rod.

8. The fault detection device suitable for use with a pipe rack cable of claim 1, wherein, The top of the box is provided with a top cover fixing seat, and the outer shell is connected to the top cover fixing seat.

9. The fault detection device for use with a pipe rack cable of claim 1, wherein, The surface of the upper cover mounting base is provided with a power control box mounting base and a battery mounting base. Above the power control box mounting base is a data acquisition control box mounting base. The power control box mounting base is used to fix the power control box, the data acquisition control box mounting base is used to fix the data acquisition control box, and the battery mounting base is used to fix the battery.

10. The fault detection device for use with a pipe rack cable of claim 1, wherein, The outer casing is equipped with a light sensor on its side to detect changes in ambient light and to support the angle adjustment of the solar panel.

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