An electric power equipment state detection device

Abstract

This invention discloses a power equipment condition monitoring device, belonging to the field of power equipment operation and maintenance monitoring technology. It aims to solve the problems of existing technologies where cable cleaning relies on manual labor, monitoring equipment lacks cleaning functions, automated cleaning devices are prone to secondary pollution, and the integration of cleaning, monitoring, and fire emergency response is not achieved. The device includes a housing, a cable, and a cleaning assembly. The cleaning assembly includes a cleaning section and a moving component. The cleaning section has a cleaning ring adapted to the cable. The moving component can drive the cleaning ring detach from the cable and enter an outer extension cover to complete self-cleaning. The cleaning ring is equipped with a temperature sensor, and a pressure sensor is installed between it and the driving section to achieve dual monitoring of the cable condition. The housing contains a compression component, a filter layer, and a wax-sealed fire extinguishing device to achieve closed-loop dust collection and fire emergency response. This device has a compact structure, is easy to operate and maintain, reduces operation and maintenance costs and safety risks, extends the service life of cables and equipment, and is suitable for use in the confined wiring cavities of power equipment.

Description

Technical Field

[0001] This invention relates to the field of power equipment operation and maintenance monitoring technology, and in particular to a power equipment condition detection device. Background Technology

[0002] Against the backdrop of the development of the smart grid industry, in the manufacturing of smart large transformers, DC converter transformers, smart reactors, and other transformers, rectifiers, and inductors, as well as in the manufacturing of smart power distribution systems and facilities, the cross-linked polyethylene insulated power cables and cable accessories used in these processes tend to accumulate dust, oil, and other impurities on their surfaces inside the cable cabling cavity during long-term operation. These impurities not only reduce the cable's insulation performance but also hinder heat dissipation, and long-term accumulation can easily lead to safety hazards such as short circuits and fires. They can also wear down the cable insulation layer, shortening the service life of the cables and accessories. Currently, cable impurity cleaning largely relies on manual power outage maintenance, which is not only costly and carries significant safety risks but also has low cleaning efficiency, making it difficult to achieve routine cleaning.

[0003] Among existing related power cable testing technologies, such as Chinese patent application number CN202410642091.2, a power cable testing device is disclosed. It mainly focuses on cable current detection and can accurately measure cable current in space-constrained environments. It can automatically identify AC and DC current and complete the detection, which is convenient for monitoring the cable operating status. However, this patent does not involve cleaning impurities on the cable surface and related dust removal and self-cleaning structures, and cannot solve the various hidden dangers caused by the accumulation of cable impurities in power equipment related to smart grids.

[0004] Furthermore, existing automated cleaning devices mostly only perform simple scraping of the cable surface, failing to clean stubborn impurities accumulated on the cleaning components themselves, easily causing secondary pollution. They also lack effective dust collection structures, allowing dust to permeate and contaminate internal components and reduce sensor detection accuracy. Simultaneously, existing devices lack integrated design for cleaning, condition monitoring, and fire emergency response, making it impossible to accurately predict hidden faults such as cable temperature rise and deformation. In the event of a fire, rapid response is difficult, easily leading to the spread of fire. They fail to simultaneously address the safety, economy, and convenience of power equipment operation and maintenance in the smart grid industry, and are ill-suited to the installation and usage requirements of its confined wiring cavities. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art, such as cable impurity cleaning relying on manual labor, existing detection equipment lacking cleaning functions, automated cleaning devices causing secondary pollution and failing to achieve cleaning, condition monitoring and fire emergency integration, and difficulty in adapting to the use requirements of narrow wiring cavities in power equipment. Therefore, a power equipment condition detection device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A power equipment condition detection device includes a housing for accommodating a cable, wherein a cleaning assembly for cleaning impurities from the cable surface is provided inside the housing; The cleaning assembly includes a cleaning part and a moving component for driving the cleaning part to move horizontally along the cable. The cleaning part includes a cleaning ring adapted to the cable. The moving component can drive the cleaning ring to detach from the cable to clean the cleaning ring itself.

[0007] In some embodiments, the housing is provided with an outer extension cover communicating with the wiring cavity, and the outer extension cover is provided with a baffle that can automatically spring back and close on the side near the wiring cavity; After the moving component drives the cleaning ring to detach from the cable, it can push the baffle into the outer extension cover. After the baffle springs back and closes, it isolates the outer extension cover from the wiring cavity.

[0008] In some embodiments, the cleaning ring is connected to a moving component via a drive unit, the drive unit being provided with a rotatable cleaning element for cleaning the cleaning ring after it has been disconnected from the cable; the cleaning ring includes a fixed ring and an elastically deformable ring for conforming to the cable for cleaning and for disconnecting from the cable to enter the outer extension cover.

[0009] In some embodiments, a temperature sensor is provided on the fixing ring, and a pressure sensor is provided between the cleaning ring and the drive unit; the temperature sensor is used to monitor the operating temperature of the cable and the connected power equipment in real time, and the pressure sensor is used to detect the cleaning resistance and indirectly detect cable deformation or bending, triggering an early warning when abnormality occurs.

[0010] In some embodiments, the baffle is provided with a breathable filter layer that can absorb dust, for collecting fine dust raised during the cleaning process; the filter layer corresponds to the position of the cleaning component, and the moving component can drive the cleaning component to the baffle to clean the filter layer.

[0011] In some embodiments, the housing is provided with a compression assembly, which includes an electric push rod and a movable plate. Before the cleaning component cleans the filter layer, the electric push rod pushes the movable plate to retract and reserve space. During cleaning, the movable plate is pushed to extend and compress the gas to be discharged, thus cooperating with the cleaning component to discharge impurities.

[0012] In some embodiments, the housing is provided with a wax-sealed fire extinguishing device, including a fire extinguishing medium, a wax seal layer, and a spray nozzle; when the ambient temperature reaches the preset melting point of the wax seal layer, the wax seal layer melts, and the fire extinguishing medium is sprayed to cover the cable.

[0013] In some embodiments, when the fire extinguishing device is activated, the moving component drives the drive unit and the cleaning component to move, and the cleaning ring and the cleaning component remove flammable materials from the surface of the cable to prevent the risk of reignition; the housing is provided with a first partition to separate and form a wiring cavity to prevent the spread of fire damage.

[0014] In some embodiments, the moving component includes an outer cover, a synchronous pulley, a second synchronous belt, and a moving motor. An external rack is provided on the outer side of the second synchronous belt. The drive unit is provided with an extension plate, and the extension plate is provided with a passive rack that meshes with the external rack.

[0015] In some embodiments, the number of cleaning rings is multiple, and the multiple cleaning rings are fixedly connected, which can correspond to multiple parallel cables to achieve synchronous cleaning and improve cleaning efficiency.

[0016] Compared with the prior art, the present invention provides a power equipment condition detection device, which has the following beneficial effects.

[0017] 1. This invention is designed to meet the development needs of the smart grid industry. It automates cable maintenance for intelligent large transformers, DC converter transformers, and other related power equipment, as well as cross-linked polyethylene insulated power cables and cable accessories. A cleaning ring removes impurities from the cable surface, replacing manual cleaning and significantly reducing power outage maintenance costs and operational safety risks. Through dual monitoring using a fixed ring temperature sensor and a pressure sensor between the cleaning ring and the drive unit, it can accurately predict hidden faults such as cable temperature rise and deformation and provide timely alarms. The elastic ring design avoids damage to the cable during cleaning, effectively extending the service life of cables, cable accessories, and related power equipment.

[0018] 2. This invention is suitable for intelligent power distribution systems, facilities, and other power distribution switch control equipment and various related power equipment. By compressing the airflow through a compression component and combining it with the adsorption of dust by a baffle filter layer, a closed-loop dust collection is achieved, preventing dust pollution from reducing the insulation performance of cross-linked polyethylene insulated power cables. The drive unit and compression component work in tandem to complete cleaning and dust removal simultaneously, eliminating the need for an additional fan. Its compact structure is suitable for the narrow wiring cavities of various power equipment, significantly improving dust removal efficiency and the operational stability of power equipment related to smart grids.

[0019] 3. This invention can be widely applied to power equipment related to the smart grid industry, balancing self-maintenance and fire emergency response capabilities. The cleaning ring can detach from the cable and enter the outer extension cover, where stubborn impurities are removed by the cleaning components in an isolated environment. Simultaneously, the filter layer is cleaned, preventing secondary pollution during self-cleaning. No manual disassembly or maintenance is required, reducing the frequency and cost of maintenance for smart grid-related power equipment, cables, and cable accessories. In case of fire, the cleaning and compression components work in conjunction to remove flammable impurities and accelerate the diffusion of extinguishing agents. After fire extinguishing, residues are automatically cleaned, balancing the safety and economy of smart grid-related power equipment maintenance.

[0020] Other advantages, objectives and features of the invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be learned from practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the internal structure of the outer shell of the present invention.

[0022] Figure 2 This is a schematic diagram of the external structure of the outer casing of the present invention.

[0023] Figure 3 This is a schematic diagram of the cleaning component of the present invention.

[0024] Figure 4 This is a schematic diagram of the drive unit and cleaning component of the present invention.

[0025] Figure 5 For the present invention Figure 4 A magnified structural diagram of region A in the middle.

[0026] Figure 6 This is a schematic diagram of the internal structure of the support shell of the present invention.

[0027] Figure 7 This is a schematic diagram of the structure of the outer extension cover and the movable component of the present invention.

[0028] Figure 8 For the present invention Figure 7 Enlarged structural diagram of region B.

[0029] Figure 9 This is a schematic diagram of the internal structure of the mobile component of the present invention.

[0030] Figure 10 For the present invention Figure 9 A magnified structural diagram of region C.

[0031] Figure 11 This is a schematic diagram of the drive unit and the transmission structure of the moving component of the present invention.

[0032] Figure 12 For the present invention Figure 9 A magnified structural diagram of region D in the middle.

[0033] Figure 13 For the present invention Figure 11 Enlarged structural diagram of region E in the middle.

[0034] Figure 14 This is a schematic diagram of the structure of the baffle of the present invention.

[0035] Figure 15 This is a schematic diagram of the structure for opening the baffle of the present invention.

[0036] Figure 16 This is a schematic diagram of the internal structure of the outer extension cover of the present invention.

[0037] Figure 17This is a schematic diagram of the fire extinguishing device of the present invention.

[0038] In the picture: 1. Outer shell; 101. Mounting cavity; 102. Wiring cavity; 103. Rolling chute; 104. First partition plate; 2. Cable; 3. Cleaning assembly; 4. Cleaning section; 401. Cleaning ring; 4011. Fixing ring; 4012. Elastic ring; 5. Drive section; 501. Support shell; 5011. Drive wheel; 5012. Driven wheel; 5013. First synchronous belt; 5014. Drive motor; 5015. Extension plate; 5016. 5017 Ball bearing; 502 Passive rack; 502 Cleaning component; 6 Outer extension cover; 601 Baffle; 7 Moving component; 701 Outer cover; 702 Synchronous pulley; 703 Second synchronous belt; 704 Outer rack; 705 Inner rack; 706 Moving motor; 8 Second partition; 801 Base plate; 802 Top frame; 8021 Movable plate; 8022 Elastic ring; 8023 Support plate; 8024 Electric push rod. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0040] Reference Figures 1 to 2 A power equipment condition monitoring device includes a housing 1, with a first partition 104 inside the housing 1; a second partition 8 is provided on the rear side of the first partition 104; the first partition 104 divides the interior of the housing 1 into an installation cavity 101 and a wiring cavity 102; the installation cavity 101 is located in front of the wiring cavity 102; a cable 2 is provided on the side of the wiring cavity 102 away from the first partition 104, with one end of the cable 2 passing through the first partition 104 and connected to the power equipment. If an abnormal temperature rise or fire is detected in the cable 2, the fire extinguishing procedure is initiated, and the circuit breaker simultaneously cuts off the power supply to the cable 2 and the power equipment, eliminating the fire energy at its source and avoiding safety hazards such as arc spread and reignition caused by extinguishing a fire while the circuit is energized.

[0041] like Figures 3 to 7 , Figures 9 to 13 As shown, a cleaning assembly 3 is slidably connected above the cable 2; the cleaning assembly 3 includes a cleaning part 4 and a moving assembly 7; the moving assembly 7 is used to drive the cleaning part 4 to move horizontally.

[0042] like Figure 4 and Figure 5As shown, the cleaning unit 4 includes a cleaning ring 401. The inner diameter of the cleaning ring 401 is adapted to the diameter of the cable 2, and it is used to move horizontally along the cable 2 under the drive of the moving component 7, thereby scraping off impurities from its surface. Preferably, there are multiple cleaning rings 401, and the multiple cleaning rings 401 are fixedly connected to each other to correspond to multiple cables 2 arranged side by side, so as to achieve synchronous cleaning.

[0043] As an improvement, the cleaning ring 401 includes a fixed ring 4011 and a flexible ring 4012. The fixed ring 4011 is equipped with a temperature sensor for detecting the temperature of the cable 2. This sensor is used to monitor the operating status of the cable 2 and the electrical equipment connected to it in real time. When a fault occurs in the equipment and the temperature exceeds the normal range, the device can promptly issue an alarm message to remind personnel to carry out maintenance.

[0044] like Figures 5 to 7 , Figures 9 to 13 As shown, during long-term operation of the device, when the cleaning ring 401 scrapes away impurities from the surface of the cable 2, some stubborn impurities, such as solidified oil and sticky dust, adhere to the end face and inner wall of the cleaning ring 401, which cannot be removed by conventional scraping. These stubborn impurities, as the cleaning ring 401 moves, accumulate with new impurities on the surface of the cable 2, causing blockages between the cleaning ring 401 and the cable 2. This not only reduces cleaning efficiency but also increases the resistance during the movement of the cleaning ring 401. Over time, this will wear down the insulation layer of the cable 2, affecting its service life and even causing a short circuit hazard. To solve the problem of stubborn impurities easily accumulating on the cleaning ring 401, the present invention further improves upon this as follows: The cleaning ring 401 is connected to the moving assembly 7 via the drive unit 5. Specifically, the drive unit 5 includes a support shell 501, inside which a drive wheel 5011 and a driven wheel 5012 are rotatably connected; the drive wheel 5011 and the driven wheel 5012 are connected by a first synchronous belt 5013; a drive motor 5014 is located in the middle of the drive wheel 5011; and a cleaning component 502 is fixedly connected to the middle of the driven wheel 5012. The cleaning component 502 includes a connecting shaft fixedly connected to the driven wheel 5012, a flexible cleaning strip is provided circumferentially on the connecting shaft, and a cleaning layer is provided on the outer side of the flexible cleaning strip; the length of the flexible cleaning strip allows it to contact the cable 2 and the fixing ring 4011, which can be used to assist in cleaning impurities on the surface of the cable 2 and provide a basis for the subsequent self-cleaning of the cleaning ring 401 and the cleaning of the filter layer.

[0045] like Figure 7 , Figures 9 to 13As shown, as an example of a moving component 7, the moving component 7 includes an outer cover 701, with synchronous pulleys 702 rotatably connected to both ends inside the outer cover 701; the outer sides of the two synchronous pulleys 702 are driven by a second synchronous belt 703; an outer rack 704 is provided on the outer side of the second synchronous belt 703; an inner rack 705 is provided on the inner side of the second synchronous belt 703; the middle part of one synchronous pulley 702 is fixedly connected to the rotating end of the moving motor 706; an extension plate 5015 is provided on the side of the support shell 501 near the moving component 7, and a ball bearing 5016 is rotatably connected to the middle part of the extension plate 5015; a rolling groove 103 is opened at the corresponding position of the second partition plate 8 and the support shell 501, which corresponds to and cooperates with the extension plate 5015; the rolling groove 103 provides a limit for the lateral movement of the extension plate 5015; a passive rack 5017 that meshes with the outer rack 704 is provided on the side of the extension plate 5015 near the second synchronous belt 703. After the mobile motor 706 is started, the synchronous pulley 702 drives the second synchronous belt 703 to rotate back and forth. Under the meshing action of the external rack 704 and the passive rack 5017, the drive unit 5 and the sweeping component 502 are driven to move horizontally, providing power support for sweeping, self-cleaning and other actions.

[0046] like Figure 7 , Figures 14 to 16 As shown, an outer extension cover 6 is provided at the corresponding position of the outer casing 1 and the wiring cavity 102. The outer extension cover 6 is connected to the wiring cavity 102. A baffle 601 is rotatably connected to the side of the outer extension cover 6 near the wiring cavity 102. The baffle 601 is connected to the outer extension cover 6 by a torsion spring or spring to achieve automatic rebound and closure. Driven by the moving component 7, and with the elastic material of the elastic ring 4012, the cleaning ring 401 can move out from the position of the cable 2, that is, detach from the cable 2 and enter the outer extension cover 6. After the cleaning ring 401 enters, the baffle 601 rebounds under the action of the torsion spring, separating the outer extension cover 6 and the wiring cavity 102 from each other, preventing impurities from returning to the wiring cavity 102 during the cleaning process and causing secondary pollution. At this time, the cleaning component 502 is driven to rotate in both directions by the drive unit 5, effectively cleaning the stubborn impurities accumulated on the end of the cleaning ring 401, thoroughly removing the attached stubborn impurities, preventing them from forming blockages, ensuring the subsequent cleaning effect of the cleaning ring 401, and protecting the cable 2 from wear.

[0047] During the process of cleaning the cable 2 by the cleaning ring 401 and the cleaning component 502, a large amount of fine dust is generated. These fine dust particles are small in size and light in weight, and easily diffuse within the enclosed wiring cavity 102. If not removed in time, they will adhere to the surface of the cable 2, the temperature sensor, the pressure sensor, and internal components of the device. This will not only reduce the detection accuracy of the sensors but also accelerate the wear of components. Long-term accumulation will also reduce the insulation performance of the cable 2, causing potential hazards such as short circuits and overheating. To further remove the fine dust raised in the wiring cavity 102 and ensure the stable operation of the device, the second partition 8 includes a base plate 801 corresponding to the drive unit 5 and the moving component 7, and a top frame 802 fixedly connected to the top of the base plate 801; a compression component is provided at the top frame 802. The compression assembly includes a support plate 8023 located on the side wall of the outer casing 1; a movable plate 8021 is connected to the inner side of the top frame 802 via an elastic ring 8022; an electric push rod 8024 is provided at a corresponding position between the support plate 8023 and the movable plate 8021, and the telescopic end of the electric push rod 8024 is fixedly connected to the movable plate 8021; the electric push rod 8024 can control the horizontal movement of the movable plate 8021 back and forth. The wiring cavity 102 is a closed cavity, and the air entering and exiting mainly passes through a filter layer (not shown in the figure) on the baffle 601. As the movable plate 8021 moves horizontally, it can compress or expand the volume of the wiring cavity 102, thereby allowing the air inside the cavity to be discharged outwards or replenished, using airflow to accelerate the discharge of dust and impurities raised during cleaning from the wiring cavity 102, maintaining the cleanliness of the wiring cavity 102.

[0048] As a better technical solution, a pressure sensor can be installed between the cleaning ring 401 and the support shell 501 to detect the resistance of impurities on the cable 2 when the cleaning ring 401 moves. The more impurities there are and the more stubborn they are, the greater the resistance, which may damage the cable 2 and affect its service life. During the movement of the cleaning ring 401, when the resistance value detected by the pressure sensor reaches the preset threshold P1, the control system activates the drive unit 5 to rotate the cleaning component 502 and simultaneously activates the compression component. The rotation of the cleaning component 502 cleans the accumulated impurities on one side of the cleaning ring 401. Although this process can clean the cleaning ring 401, it will aggravate the raising of fine dust, resulting in more severe dust dispersion in the wiring cavity 102. If only the airflow of the conventional compression component is used for discharge, it is difficult to quickly and completely remove the raised dust. Therefore, it is necessary to further optimize the dust removal logic to achieve efficient dust collection.

[0049] To address the aforementioned problem of increased dust dispersion, a filter layer is pre-installed on the baffle 601, connecting the wiring cavity 102 and the outer extension cover 6. This filter layer is breathable and can adsorb dust impurities. When the electric push rod 8024 pushes the movable plate 8021 to expel the gas from the wiring cavity 102, the gas carrying dust passes through the filter layer, and the dust impurities are effectively adsorbed onto the filter layer. When the electric push rod 8024 causes the movable plate 8021 to retract and reset, due to the change in airflow direction and the adsorption effect of the filter layer, the dust impurities carried on the filter layer will not fall off, thus achieving effective collection of dust during the cleaning process and completely solving the problem of dust dispersion.

[0050] Furthermore, after long-term use, dust and impurities adsorbed on the surface of the filter layer will gradually accumulate, leading to a decrease in the filter layer's air permeability, affecting the dust removal effect, and even causing airflow blockage, increasing the operating load of the compression assembly. To solve the problem of dust accumulation and blockage in the filter layer, the position of the filter layer can be set to correspond to the cleaning component 502; before the cleaning component 502 passes the baffle 601, the electric push rod 8024 in the compression assembly pushes the movable plate 8021 to retract, reserving space for subsequent gas exhaust; when the cleaning component 502 moves with the moving component 7 to the position of the baffle 601, and the start drive unit 5 drives the cleaning component 502 to perform a secondary cleaning of the impurities adsorbed on the filter layer, the electric push rod 8024 pushes the movable plate 8021 to extend, squeezing the gas inside the wiring cavity 102 to exhaust. Only this squeezing action is performed, combined with the rotation of the cleaning component 502, to discharge the impurities cleaned off the filter layer with the airflow, completing the cleaning of the filter layer, restoring the air permeability of the filter layer, and ensuring the long-term stable operation of the dust removal system. Meanwhile, the pressure sensor can not only monitor the resistance of impurities, but also indirectly detect whether the cable 2 is deformed or bent. Once the cable 2 is deformed or bent, when the cleaning ring 401 passes through the area driven by the moving component 7, the resistance value detected by the pressure sensor will continue to rise abnormally, thus issuing an early warning in time to prompt personnel to check the physical condition of the cable 2 and avoid potential hazards such as insulation damage and short circuit caused by the deformation or bending of the cable 2.

[0051] It should be noted that although this device has a complete cleaning and dust removal structure that can effectively remove impurities from the surface of cable 2 and inside the wiring cavity 102, there is still a potential risk of fire. On the one hand, cable 2 may age and have damaged insulation layers after long-term operation. Even without impurity accumulation, internal short circuits may still cause high temperatures and open flames. On the other hand, if impurities accumulate excessively in a short period, it may lead to poor heat dissipation of cable 2, making it prone to fire during continuous high-temperature operation. Even faults in the electrical equipment itself may be conducted to cable 2, causing a fire. Therefore, to fully ensure the operational safety of the electrical equipment and cable 2 and avoid significant losses caused by fire, this invention adds a fire early warning, prevention, and emergency response plan, as follows: like Figure 17As shown, as a further safety design, multiple trigger-type fire extinguishing devices can be installed at equal intervals on the inner bottom of the movable plate 8021. These trigger-type fire extinguishing devices are specifically wax-sealed fire extinguishing devices, which mainly consist of four parts: a shell, a dry powder or extinguishing gas extinguishing medium, a wax seal layer, and a nozzle. The wax seal layer uses a low-temperature wax material with a specific melting point, sealed at the nozzle of the fire extinguishing device to prevent leakage of the extinguishing medium and ensure that the device is in a sealed, ready-to-use state under normal conditions. Its working principle is as follows: when cable 2 catches fire and generates high temperatures, and the ambient temperature reaches the preset melting point of the wax seal layer, the wax seal layer melts rapidly, breaking the seal. The extinguishing medium inside the fire extinguishing device (using its own stored pressure or gravity) is automatically sprayed downwards from the nozzle, covering the surface of cable 2, thus automatically extinguishing the initial fire. Simultaneously, the circuit breaker cuts off the power supply to cable 2 and the electrical equipment, forming a dual protection of "power outage + fire extinguishing," eliminating the fire energy at its source and avoiding safety hazards such as arc spread and reignition caused by energized fire extinguishing.

[0052] To address the issue that flammable materials such as oil and dust on the surface of cable 2 can fuel the fire and hinder the contact of extinguishing agents with the cable 2 body in the early stages of a fire, this invention has been further optimized: the cleaning component 502 and the cleaning ring 401 are made of high-temperature resistant materials; in the early stages of a fire, the moving component 7 drives the drive unit 5 and the cleaning component 502 to move horizontally on cable 2 quickly. The cleaning ring 401 scrapes away flammable materials such as oil and dust from the surface of cable 2, while the rotation of the cleaning component 502 quickly sweeps these flammable impurities away from the surface of cable 2, removing flammable materials near the fire source, allowing the extinguishing agent to directly contact cable 2, greatly improving extinguishing efficiency and reducing the risk of reignition. During the fire extinguishing process, the temperature sensor on the cleaning ring 401 can detect in real time whether the fire is under control.

[0053] After the fire is extinguished, extinguishing powder, charcoal residue, and other residues may remain on the surface of cable 2. These residues can affect the heat dissipation performance of cable 2 and may corrode its insulation layer, posing potential hazards for subsequent work. At this time, the moving component 7 can drive the drive unit 5 and the cleaning component 502 to move horizontally on cable 2. The rotation of the cleaning component 502 will initially remove these residues, facilitating subsequent manual inspection and maintenance of cable 2. Throughout the fire extinguishing and subsequent cleanup process, the first partition 104 acts as a barrier between the installation cavity 101 and the wiring cavity 102, preventing further fire damage to electrical equipment.

[0054] In normal operation, the controller periodically activates the moving component 7 to drive the cleaning unit 4 to move horizontally back and forth along the cable 2 according to a preset program, thus achieving basic automatic cleaning. Simultaneously, the controller receives and analyzes the detection data from the temperature and pressure sensors in real time. Specifically, the moving component 7 drives the cleaning unit 4 to move horizontally back and forth along the cable 2. The outer rack 704 on the outer side of the second synchronous belt 703 meshes with the passive rack 5017 on the extension plate 5015, pushing the support shell 501 to move horizontally along the rolling groove 103 of the second partition plate 8, causing the cleaning unit 4 to move closer to the cable 2. The cleaning ring 401, with its inner diameter adapted to the diameter of the cable 2, moves axially along the cable 2 under the drive of the moving component 7. The elastic ring 4012 adheres to the surface of the cable 2, scraping away dust, oil, and other impurities accumulated on the surface of the cable 2, thus achieving basic automatic cleaning.

[0055] Simultaneously, a temperature sensor embedded in the fixed ring 4011 collects the operating temperature of the cable 2 and the connected electrical equipment in real time, while a pressure sensor synchronously detects the resistance value of the cleaning ring 401 during movement. When the temperature sensor data abnormally rises to the threshold T1, the controller determines that there is a high risk of fire and immediately activates the moving component 7 and the drive unit 5 to perform fire-fighting auxiliary cleaning, removing flammable materials near the fire source. If the temperature continues to rise, the wax seal of the trigger-type fire extinguishing device melts, automatically performing physical fire extinguishing, while the controller instructs the circuit breaker to trip, achieving power disconnection and isolation. After the fire is extinguished, the temperature data drops back to a safe range, and the controller restarts the cleaning component 3 to perform residual cleaning. When the pressure sensor data reaches the threshold P1, the controller determines that there are too many impurities and synchronously activates the drive unit 5 and the compression component, and in conjunction with the filter layer on the baffle 601, performs intelligent linkage dust removal, deeply cleaning and collecting dust from the cleaning ring 401 and the wiring cavity 102. If the pressure sensor data continues to rise abnormally but the temperature data is normal, the controller determines that the cable 2 may have undergone physical deformation or bending and issues a corresponding warning.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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 the present invention. 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 any suitable manner in 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.

Claims

1. A power equipment condition monitoring device, characterized in that, Includes a housing (1) for accommodating the cable (2), and a temperature sensor for detecting the operating status of the cable (2) is provided inside the housing (1); the temperature sensor is set on the cleaning ring (401) for real-time monitoring of the operating temperature of the cable (2) and the connected power equipment, and triggers an alarm when abnormal.

2. The power equipment condition monitoring device according to claim 1, characterized in that, The housing (1) is provided with a cleaning assembly (3) for cleaning impurities on the surface of the cable (2); the cleaning assembly (3) includes a cleaning part (4) and a moving assembly (7) for driving the cleaning part (4) to move horizontally along the cable (2); the cleaning part (4) includes a cleaning ring (401) adapted to the cable (2).

3. The power equipment condition monitoring device according to claim 2, characterized in that, The moving component (7) can drive the cleaning ring (401) away from the cable (2) to clean the cleaning ring (401) itself; The outer casing (1) is provided with an outer extension cover (6) that communicates with the wiring cavity (102). The outer extension cover (6) is provided with a baffle (601) that can automatically spring back and close on the side near the wiring cavity (102). After the moving component (7) drives the cleaning ring (401) to disengage from the cable (2), it can push the baffle (601) into the outer extension cover (6). After the baffle (601) springs back and closes, it isolates the outer extension cover (6) from the wiring cavity (102).

4. The power equipment condition monitoring device according to claim 2, characterized in that, The cleaning ring (401) is connected to the moving component (7) via the drive unit (5). The drive unit (5) is provided with a rotatable cleaning component (502) for cleaning the cleaning ring (401) after it is disconnected from the cable (2). The cleaning ring (401) includes a fixed ring (4011) and an elastically deformable ring (4012) for cleaning the cable (2) and disconnecting the cable (2) to enter the outer extension cover (6).

5. The power equipment condition monitoring device according to claim 2, characterized in that, A pressure sensor is provided between the cleaning ring (401) and the drive unit (5); the pressure sensor is used to detect cleaning resistance and indirectly detect the deformation or bending of the cable (2), and triggers an alarm when abnormal.

6. The power equipment condition monitoring device according to claim 3, characterized in that, The baffle (601) is provided with a breathable filter layer that can absorb dust, which is used to collect fine dust raised during the cleaning process; the filter layer corresponds to the position of the cleaning component (502), and the moving component (7) can drive the cleaning component (502) to the baffle (601) to clean the filter layer.

7. The power equipment condition monitoring device according to claim 6, characterized in that, The housing (1) is provided with a compression assembly, which includes an electric push rod (8024) and a movable plate (8021). Before the cleaning component (502) cleans the filter layer, the electric push rod (8024) pushes the movable plate (8021) to retract the reserved space. During cleaning, the movable plate (8021) is pushed to extend and compress the gas to be discharged, which cooperates with the cleaning component (502) to discharge impurities.

8. The power equipment condition monitoring device according to claim 1, characterized in that, The outer casing (1) is equipped with a wax-sealed fire extinguishing device, including a fire extinguishing medium, a wax seal layer and a spray nozzle; when the ambient temperature reaches the preset melting point of the wax seal layer, the wax seal layer melts and the fire extinguishing medium is sprayed to cover the cable (2).

9. The power equipment condition monitoring device according to claim 8, characterized in that, When the fire extinguishing device is activated, the moving component (7) drives the driving part (5) and the cleaning part (502) to move. The cleaning ring (401) and the cleaning part (502) remove flammable materials from the surface of the cable (2) to prevent the risk of reignition. The outer shell (1) is provided with a first partition (104) to form a wiring cavity (102) to prevent the fire damage from spreading.

10. The power equipment condition detection device according to claim 2, characterized in that, The moving component (7) includes an outer cover (701), a synchronous pulley (702), a second synchronous belt (703), and a moving motor (706). An outer rack (704) is provided on the outer side of the second synchronous belt (703). The drive unit (5) is provided with an extension plate (5015), and the extension plate (5015) is provided with a passive rack (5017) that meshes with the outer rack (704). The number of cleaning rings (401) is multiple, and the multiple cleaning rings (401) are fixedly connected to be used for synchronous cleaning of multiple parallel cables (2).

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