Intelligent power distribution fault isolation enforcement device

Abstract

The application relates to the technical field of power equipment, in particular to an intelligent power distribution fault isolation execution device, which comprises an incoming line conductive component, an outgoing line conductive component, a pneumatic actuating mechanism and a monitoring control unit. Through cooperation of the monitoring control unit, the pneumatic actuating mechanism, the outgoing line conductive component and the incoming line conductive component, independent monitoring and accurate fault isolation of each power distribution branch are realized, the traditional trunk overall tripping mode is abandoned, single-branch faults are only isolated from fault lines, the remaining branches are continuously powered, mine production interruption and monitoring failure problems are effectively avoided, field power distribution safety and power supply continuity are improved, the defects that the existing mine field power distribution protection equipment adopts a trunk unified tripping protection mode and cannot realize independent monitoring and accurate isolation of branches are solved, and problems of single-branch fault-induced full-line power failure, production interruption and monitoring failure are avoided.

Description

Technical Field

[0001] This application generally relates to the field of power equipment technology, and more specifically, to an intelligent power distribution fault isolation actuator. Background Technology

[0002] Coal mine outdoor mining areas and mine field operation areas are equipped with a large number of temporary and mobile power distribution branches to supply power to mining, monitoring, lighting and other equipment. The working environment is harsh and the lines are susceptible to mechanical pulling, rockfall impacts, dust and moisture erosion, resulting in frequent failures. These are key scenarios for ensuring power supply in mines.

[0003] In actual operation, the outdoor power distribution system in a mine consists of multiple independent branch power supply lines. When any branch line experiences a short circuit, grounding, leakage, or other fault, traditional protection equipment will directly cut off the entire main power supply circuit, causing all fault-free branch lines to lose power simultaneously. This problem directly leads to the interruption of mining operations and the shutdown of various safety monitoring equipment. This not only significantly reduces the efficiency of mine production operations and generates economic losses, but also poses safety hazards in the mine due to the power outage of safety monitoring equipment, making it difficult to meet the continuous, stable, and safe power supply requirements for mine operations in the field. Summary of the Invention

[0004] According to this application, an intelligent power distribution fault isolation execution device is provided. It solves the drawback of existing mine field power distribution protection equipment that uses a unified main line tripping protection method, which cannot achieve independent monitoring and precise isolation of branch circuits. This avoids the problems of a single branch circuit fault causing a complete power outage, production interruption, and monitoring failure, effectively improving the current situation of low production efficiency and potential safety hazards.

[0005] This application provides an intelligent power distribution fault isolation actuator, including an incoming line conductive component, an outgoing line conductive component, a pneumatic actuator, and a monitoring and control unit; Incoming conductor assembly, used to connect to the main incoming cable; Multiple outgoing conductive components are provided, each of which is in contact with and connected to the incoming conductive component. The outgoing conductive components are used to connect outgoing branch cables. Multiple pneumatic actuators are provided, each corresponding to one of the multiple outgoing conductive components, and the pneumatic actuators are connected to the corresponding outgoing conductive components. The monitoring and control unit is used to collect the current and voltage parameters of each outgoing branch cable in real time and determine the operating status. When the operating status is determined to be abnormal, the corresponding pneumatic actuator is controlled to act, driving the corresponding outgoing conductive component to separate from the incoming conductive component, thereby realizing power disconnection and isolation of the faulty branch.

[0006] In one embodiment, the incoming line conductive assembly includes a stationary conductive rod, a first copper busbar, a first copper column, and an incoming line terminal block; Multiple static conductive rods are equidistantly arranged on the first copper busbar, and each static conductive rod corresponds to one of the multiple outgoing conductive components. The outgoing conductive components are in contact with the corresponding static conductive rods to conduct electricity. One end of the first copper pillar is connected to the end of the first copper busbar, and the other end is connected to the incoming line terminal block, which is used to connect the main incoming cable.

[0007] In one embodiment, the incoming conductive assembly further includes an insulating box and a guide sleeve; The insulating box has an inner cavity, and the first copper busbar and all the static conductive rods are located in the inner cavity. The first copper column extends outward from the insulating box. Each of the guide sleeves corresponds to one of the static conductive rods. The guide sleeves are located at the bottom of the insulation box and are connected to the insulation box. The guide sleeves are coaxial with the corresponding static conductive rods.

[0008] In one embodiment, the outgoing conductive component includes a fixed conductive component and a movable conductive rod; The movable conductive rod is slidably inserted into the fixed conductive component and forms an electrical connection. The pneumatic actuator is driven by the movable conductive rod. The movable conductive rod is either in contact with the incoming conductive component to conduct electricity or separates from it to switch the circuit on and off.

[0009] In one embodiment, the fixed conductive component includes a copper tube, a second copper busbar, a second copper column, and an outgoing terminal block; The copper tube, the second copper busbar, the second copper column, and the outgoing terminal are connected in sequence, and the outgoing terminal is used to connect the outgoing branch cable.

[0010] In one embodiment, the intelligent power distribution fault isolation actuator further includes a reset mechanism; Multiple reset mechanisms are arranged in a one-to-one correspondence with multiple outgoing conductive components. Each reset mechanism has a telescopic end that extends into the copper tube and abuts against the moving conductive rod. The reset mechanism is used to drive the moving conductive rod to reset and close the circuit.

[0011] In one embodiment, the pneumatic actuator includes an inflation / deflation assembly, a cylinder drive mechanism, and an insulating connector; The cylinder drive mechanism has a moving end, which is connected to one end of the insulating connector, and the other end of the insulating connector is connected to the outgoing conductive component. The inflation / deflation assembly is connected to the cylinder drive mechanism and is used to control the extension and retraction of the cylinder drive mechanism.

[0012] In one embodiment, the inflation / deflation assembly includes an air tank, an air pump, an inflation pipe, a first valve body, a deflation pipe, and a second valve body; The air pump is connected to the air tank and is used to fill the air tank with air to maintain the air tank at a high pressure. The two ends of the inflation tube are respectively connected to the air tank and the cylinder drive mechanism, and the first valve body is disposed on the inflation tube; The vent pipe is connected to the cylinder drive mechanism, and the second valve body is disposed on the vent pipe.

[0013] In one embodiment, the monitoring and control unit includes an electrical parameter acquisition unit and a main controller; Multiple electrical parameter acquisition units are configured one-to-one with multiple outgoing branch cables. The electrical parameter acquisition units are used to acquire the voltage and current parameters of the corresponding outgoing branch cables and generate parameter signals to be transmitted to the main controller. The main controller is used to determine the operating status of the outgoing branch cable based on the parameter signal. When an abnormal fault occurs in the outgoing branch cable, it outputs a corresponding control command to drive the corresponding pneumatic actuator to achieve isolation and power disconnection of the faulty branch.

[0014] In one embodiment, the intelligent power distribution fault isolation actuator further includes a housing; The inlet conductive assembly, the outlet conductive assembly, the pneumatic actuator, and the monitoring and control unit are all housed within the enclosure. The housing is provided with an inlet cavity, a pneumatic control cavity, and an outlet cavity; the inlet conductive assembly and the main inlet cable are electrically connected in the inlet cavity; the inlet conductive assembly and the outlet conductive assembly are either bonded and connected or separated and disconnected in the pneumatic control cavity; the outlet conductive assembly and the outlet branch cable are electrically connected in the outlet cavity.

[0015] Compared with the prior art, this application has the following beneficial technical effects: By adopting a split-type multi-branch protection structure that combines monitoring and control units, pneumatic actuators, outgoing conductive components, and incoming conductive components, independent real-time monitoring of electrical parameters, accurate fault determination, and individual isolation protection can be achieved for each power distribution branch line in the mine field, completely changing the protection logic of unified tripping of the traditional power distribution equipment backbone.

[0016] When a fault such as short circuit, leakage, or overload occurs in a single branch line, this device only drives the pneumatic actuator corresponding to the faulty branch to separate the outgoing conductive component from the incoming conductive component, thereby cutting off the power and disconnecting the faulty branch. The remaining normal power supply branches can maintain continuous conduction and uninterrupted power supply, effectively avoiding the problem of a single point fault causing a power outage across the entire line. This prevents mining operations from stopping and on-site safety monitoring equipment from failing, significantly improving the power supply continuity, fault tolerance, and operational reliability of the mine's field power distribution system, reducing economic losses caused by production downtime, eliminating safety hazards caused by the lack of security monitoring, and is suitable for long-term use in harsh field power supply scenarios in mines that are dusty, humid, and susceptible to mechanical impact and pulling.

[0017] It should be understood that the content described in this application summary is not intended to limit the key or essential features of the embodiments of this application, nor is it intended to restrict the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0018] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein: Figure 1 A schematic diagram of the structure of the intelligent power distribution fault isolation execution device in an embodiment of this application is shown; Figure 2 A schematic diagram of the pneumatic actuator in an embodiment of this application is shown; Figure 3 A schematic diagram of the incoming conductive component in an embodiment of this application is shown; Figure 4 A schematic diagram of the outgoing conductive component and its connection structure in an embodiment of this application is shown; Figure 5 A schematic diagram of the box structure in an embodiment of this application is shown; Figure 6 A schematic diagram of the internal structure of the box in an embodiment of this application is shown; in; 1. Incoming line conductive assembly; 11. Static conductive rod; 12. First copper busbar; 13. First copper column; 14. Incoming line terminal block; 15. Insulation box; 16. Guide sleeve; 2. Outgoing conductive assembly; 21. Moving conductive rod; 22. Copper pipe; 23. Second copper busbar; 24. Second copper column; 25. Outgoing terminal block; 3. Pneumatic actuator; 31. Cylinder drive mechanism; 32. Insulating connector; 33. Air tank; 34. Air pump; 35. Inflation pipe; 36. First valve body; 37. Deflator pipe; 38. Second valve body; 4. Reset mechanism; 5. Electrical parameter acquisition unit; 6. Main controller; 7. Housing; 71. Inlet cavity; 72. Pneumatic control cavity; 73. Outlet cavity. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0021] This intelligent power distribution fault isolation device, through the cooperation of a monitoring and control unit, a pneumatic actuator 3, an outgoing conductive component 2, and an incoming conductive component 1, achieves independent monitoring and precise fault isolation for each power distribution branch. It abandons the traditional main trunk overall tripping mode, and isolates only the faulty line when a single branch fault occurs, ensuring continuous power supply to the remaining branches. This effectively avoids mine production interruptions and monitoring failures, improves the safety and continuity of power distribution in the field, and solves the drawback of existing mine field power distribution protection equipment that uses a unified main trunk tripping protection method, which cannot achieve independent monitoring and precise isolation of branches. It avoids the problem of a single branch fault causing a complete power outage, production interruption, and monitoring failure.

[0022] Please see Figures 1-6 As shown, this application provides an intelligent power distribution fault isolation actuator, which consists of an incoming conductive component 1, multiple sets of outgoing conductive components 2, multiple sets of pneumatic actuators 3, and a monitoring and control unit. The whole adopts a multi-path independent branch integrated structure layout, which is compact and highly integrated, and is suitable for the operation protection requirements of multi-circuit power distribution lines.

[0023] Among them, the incoming conductive component 1 is the main incoming conductive carrier of the device. It adopts a one-piece molded structure of hard copper and has the properties of high conductivity, high current resistance and arc oxidation resistance. It is used to stably connect to the external incoming main cable and realize the unified input of the overall power of the device.

[0024] The outgoing conductive components 2 are configured in multiple groups and arranged in an array to form multiple independent parallel power supply branches. The top conductive end of each outgoing conductive component 2 can maintain surface contact and conduction with the bottom conductive end of the incoming conductive component 1. At the same time, each group of outgoing conductive components 2 is individually connected to an outgoing branch cable to achieve uniform power output from multiple paths.

[0025] The number of pneumatic actuators 3 is perfectly matched with the number of outgoing conductive components 2, and they are assembled vertically and coaxially in a one-to-one correspondence. Each pneumatic actuator 3 is an independent power unit, which can drive a single set of outgoing conductive components 2 to complete vertical linear displacement without interfering with each other.

[0026] The monitoring and control unit is an embedded intelligent control module with high-precision electrical parameter acquisition, data processing, fault diagnosis, and command output functions. It monitors the electrical operating parameters of all outgoing branch cables online throughout the entire process.

[0027] This solution adopts a multi-branch independent control structure, combining online electrical monitoring and pneumatic drive isolation mode. It abandons the traditional protection method of overall power outage of power distribution equipment, and can achieve precise isolation of faulty branches and uninterrupted power supply to normal branches, which greatly reduces the scope of power outage and improves the power supply stability and fault handling efficiency of the power distribution system. The overall structure is simple, the pneumatic response speed is fast, and the control precision is high, making it suitable for various indoor and outdoor intelligent power distribution scenarios.

[0028] Please see Figure 3 As shown, in one embodiment, the incoming conductive component 1 specifically includes a static conductive rod 11, a first copper busbar 12, a first copper pillar 13, and an incoming terminal block 14. All conductive components are made of T2 copper material and have been tin-plated for anti-oxidation treatment. They have excellent electrical properties such as low conductive loss, high current carrying capacity, high temperature resistance, and resistance to arc erosion, making them suitable for long-term transmission of large currents in power distribution.

[0029] The first copper busbar 12 is a flat, elongated plate structure, serving as the core shunt substrate for the incoming conductive assembly 1, and is arranged horizontally. Multiple stationary conductive rods 11 are solid cylindrical copper rods, vertically and evenly fixed at equal intervals on the lower conductive end face of the first copper busbar 12. The number of stationary conductive rods 11 corresponds one-to-one with the number of outgoing conductive assemblies 2. Each stationary conductive rod 11 is independently matched with a set of outgoing conductive assemblies 2, ensuring independent conductivity for each branch. The bottom end of each stationary conductive rod 11 is a smooth, flat conductive tip, which can tightly fit with the top of the corresponding outgoing conductive assembly 2, forming a stable surface contact conductive structure with extremely low contact resistance.

[0030] The first copper pillar 13 is a solid cylindrical structure, vertically fixed to the end of the first copper busbar 12, serving both as a conductive connection and structural support, exhibiting high structural rigidity and resistance to deformation. The bottom end of the first copper pillar 13, away from the first copper busbar 12, is fixedly connected to the inlet terminal block 14. The inlet terminal block 14 is an integrated die-cast copper terminal structure with internal clamping slots, a dedicated cable clamping and wiring structure that stably clamps and presses the core of the main inlet cable, ensuring a reliable electrical connection between the main inlet cable and the internal conductive structure, preventing loose connections and overheating.

[0031] For further details, please refer to Figure 3 and Figure 4 As shown, in one embodiment, the incoming conductive assembly 1 is further provided with an insulating box 15 and a guide sleeve 16. Through insulation protection and a precise motion guidance structure, the electrical safety and mechanical movement accuracy of the device are optimized.

[0032] The insulation box 15 is integrally injection molded from high-strength flame-retardant ABS insulating material. It has a rectangular, enclosed structure with high insulation strength, high flame retardancy, leakage prevention, and corrosion resistance. It features a sealed internal cavity. The first copper busbar 12 and all stationary conductive rods 11 are housed within the cavity of the insulation box 15, providing complete insulation protection for all internal live conductive components. The side wall of the insulation box 15 has an adapter through-hole through which the first copper post 13 extends outward, exposing the end-connected inlet terminal block 14 on the outside of the insulation box 15, facilitating the wiring and assembly of the external inlet cable.

[0033] The guide sleeve 16 is made of wear-resistant epoxy insulating material and has a hollow cylindrical structure, possessing high insulation, wear resistance, self-lubrication, and non-deformation properties. Multiple guide sleeves 16 are provided, their number corresponding one-to-one with the stationary conductive rods 11. All guide sleeves 16 are vertically fixed and embedded in the bottom end face of the insulation box 15, and the internal hollow through holes of the guide sleeves 16 are interconnected with the inner cavity of the insulation box 15. Each guide sleeve 16 is strictly coaxially and vertically arranged with its corresponding stationary conductive rod 11, forming a precise vertical alignment guide channel structure.

[0034] The enclosed flame-retardant and insulated enclosure structure significantly improves the electrical safety performance of the device, making it suitable for complex power distribution environments such as indoor and outdoor damp and dusty conditions. At the same time, the coaxial hollow cylindrical guide structure effectively solves the problems of conductive component movement offset, contact misalignment, and poor contact, significantly improving the accuracy and stability of branch circuit switching, reducing the probability of equipment failure, and effectively extending the overall service life of the device.

[0035] Please see Figure 4As shown, in one embodiment, the outgoing conductive component 2 is specifically divided into two parts: a fixed conductive component and a moving conductive rod 21. The two are coaxially nested together to form a conductive motion structure that can be opened and closed vertically. The structure has high fitting precision and good conductive stability.

[0036] The moving conductive rod 21 is a solid cylindrical copper rod structure, made of high-conductivity copper material, with a polished and tin-plated surface, exhibiting excellent conductivity and resistance to arc erosion. The moving conductive rod 21 is nested inside the fixed conductive assembly using a vertical sliding insertion assembly method, with the inner and outer wall contact surfaces of the two tightly fitted, maintaining a stable electrical connection at all times.

[0037] The power output end of the pneumatic actuator 3 forms a direct vertical transmission connection with the bottom end of the moving conductive rod 21, which can drive the moving conductive rod 21 to slide vertically back and forth along the inside of the fixed conductive component. The top end of the moving conductive rod 21 is a flat and smooth conductive end, which can precisely fit and conduct electricity with the bottom end of the stationary conductive rod 11 of the inlet conductive component 1, or vertically separate, thereby realizing the rapid switching of a single branch circuit.

[0038] For details, please refer to Figure 4 As shown, in one embodiment, the fixed conductive component of the outgoing conductive component 2 specifically includes a copper tube 22, a second copper busbar 23, a second copper column 24 and an outgoing terminal block 25. Each component is made of highly conductive copper material and is assembled and connected in a coaxial and straight manner to form a complete low-loss outgoing conductive path.

[0039] The copper tube 22 is a hollow cylindrical copper structure with uniform wall thickness and smooth, wear-resistant inner wall. It serves as the vertical sliding mounting base for the movable conductive rod 21. The movable conductive rod 21 is coaxially inserted into the copper tube 22 and can slide freely vertically. The copper tube 22 integrates multiple functions such as conductivity, sliding guidance, and structural support, resulting in a high degree of structural integration.

[0040] The sidewall of copper tube 22 is fixedly conductively connected to one end of the second copper busbar 23. The second copper busbar 23 is a flat plate-shaped copper structure that serves as a current shunt and transfer support. The other end of the second copper busbar 23 is electrically connected to the outgoing terminal block 25 via the second copper post 24. The second copper post 24 is a solid cylindrical transfer structure to ensure a straight and stable conductive path. The outgoing terminal block 25 is an external clamping terminal structure used to clamp and fix the outgoing branch cable core, achieving stable wiring.

[0041] Please see Figure 1 As shown, in one embodiment, the device is equipped with a reset mechanism 4 to realize the automatic reset and closing of the moving conductive rod 21.

[0042] The reset mechanism 4 can be a mechanical automatic reset structure, preferably a high-strength compression spring structure, which has the characteristics of stable elasticity, fatigue resistance and long service life. Multiple mechanisms are set up and are independently vertically arranged in correspondence with multiple sets of outgoing conductive components 2 to realize independent reset control of a single branch.

[0043] The reset mechanism 4 is vertically arranged at the center of the bottom of the copper tube 22 and is equipped with a retractable elastic telescopic end. The telescopic end extends into the interior of the copper tube 22 from the bottom opening, and the top of the telescopic end directly and seamlessly abuts against the center of the bottom end face of the moving conductive rod 21. The axial force is uniformly transmitted and a vertical upward pushing force can be directly applied to the moving conductive rod 21.

[0044] The reset mechanism 4 can also be an electric reset structure, which can be an electric push rod. The electric push rod is coaxial with the copper tube 22. When the electric push rod extends and enters the interior of the copper tube 22, it abuts against the bottom end of the moving conductive rod 21 and can directly apply a vertical upward pushing force to the moving conductive rod 21 to reset it.

[0045] Please see Figures 1-4 As shown, in one embodiment, the pneumatic actuator 3 specifically includes an air filling and discharging assembly, a cylinder drive mechanism 31, and an insulating connector 32. The three components work together from top to bottom to form an integrated pneumatic drive isolation structure, which provides stable power output and reliable insulation performance.

[0046] The cylinder drive mechanism 31 is a miniature vertical cylinder structure, characterized by smooth operation, rapid response, strong overload capacity, and adaptability to frequent start-stop conditions. It serves as the main power output component of the device and features a vertically extendable moving end. The top of the moving end of the cylinder drive mechanism 31 is fixedly connected to the bottom of the insulating connector 32, and the top of the insulating connector 32 is fixedly connected to the bottom of the moving conductive rod 21 of the outgoing conductive component 2. The insulating connector 32 is made of high-strength epoxy insulation material, with a columnar structure, extremely high insulation resistance, strong pressure resistance, and high mechanical strength. It can achieve stable power transmission while completely blocking the electrical conductive circuit, preventing leakage current from live parts to the drive mechanism. The inflation / deflation assembly is sealed and connected to the internal air circuit of the cylinder drive mechanism 31. Precise inflation and deflation control of the cylinder drive mechanism 31's extension and retraction movements can drive the outgoing conductive component 2 to complete precise on / off displacement.

[0047] For details, please refer to Figure 2 As shown, in one embodiment, the inflation / deflation assembly specifically includes an air tank 33, an air pump 34, an inflation pipe 35, a first valve body 36, a deflation pipe 37, and a second valve body 38, forming a complete closed pneumatic control air circuit system with good air circuit sealing performance, stable pressure, and fast response speed.

[0048] The gas tank 33 is a sealed high-pressure gas storage tank structure, made of pressure-resistant metal material, with strong pressure resistance and good airtightness, used to store high-pressure gas. The air pump 34 is a miniature silent booster pump, which is in sealed communication with the inside of the gas tank 33, and can continuously boost the pressure inside the gas tank 33, so that the inside of the gas tank 33 can maintain a stable high-pressure state for a long time, and reserve sufficient power for instantaneous pneumatic action.

[0049] Both the inflation pipe 35 and the deflation pipe 37 are high-pressure, oil-resistant gas pipes, pressure-resistant and anti-aging. The two ends of the inflation pipe 35 are respectively sealed and connected to the gas tank 33 and the air inlet of the cylinder drive mechanism 31. The first valve body 36 is a high-precision electromagnetic control valve, installed on the inflation pipe 35, used to precisely control the opening and closing of the inflation passage. The deflation pipe 37 is sealed and connected to the exhaust end of the cylinder drive mechanism 31. The second valve body 38 is an electromagnetic exhaust valve, installed on the deflation pipe 37, used to precisely control the opening and closing of the exhaust passage.

[0050] When the monitoring and control unit determines that the outgoing branch cable is in an abnormal operating state, it controls the first valve body 36 of the corresponding pneumatic actuator 3 to open and the second valve body 38 to close. Then, the high-pressure air in the air tank 33 begins to enter the cylinder drive mechanism 31, causing the cylinder drive mechanism 31 to extend and drive the moving conductive rod 21 to move downward and separate from the stationary conductive rod 11, thereby de-energizing the abnormal outgoing branch cable. When the outgoing branch cable is repaired after power failure and needs to be connected, the monitoring and control unit controls the first valve body 36 of the corresponding pneumatic actuator 3 to close and the second valve body 38 to open. The air in the cylinder drive mechanism 31 is discharged by the vent pipe 37, and the moving conductive rod 21 is pushed upward by the reset mechanism 4 until it is in contact with the stationary conductive rod 11 to conduct electricity.

[0051] Please see Figure 1 As shown, in one embodiment, the monitoring and control unit consists of an electrical parameter acquisition unit 5 and a main controller 6, forming a high-precision, high-response intelligent monitoring and control system.

[0052] The electrical parameter acquisition unit 5 is a through-hole ring sensor structure, with an overall circular shape and an open-and-close installation design. It features a high level of insulation protection, strong anti-interference capability, and high measurement accuracy. Multiple electrical parameter acquisition units 5 are installed, each corresponding to one of the multiple outgoing branch cables. The cables pass directly through the inner ring of the sensor, allowing for non-contact independent acquisition of real-time voltage and current operating parameters of a single outgoing branch cable. The acquired analog parameters are then accurately converted into standard electrical parameter signals and transmitted in real-time to the main controller 6.

[0053] The main controller 6 is an embedded industrial control motherboard with high-speed data processing, fault threshold comparison, and precise command output functions, and is the core control module of the entire device.

[0054] Please see Figures 1-6As shown, in one embodiment, the device includes a housing 7, which serves as an integrated protective carrier for all components. The housing 7 is made of high-strength cold-rolled steel sheet with a spray-coated finish, and is an enclosed rectangular cabinet structure, providing dustproof, moisture-proof, rust-proof, high mechanical strength, and excellent protection. The inlet conductive assembly 1, the outlet conductive assembly 2, the pneumatic actuator 3, and all components of the monitoring and control unit are integrated and installed inside the housing 7, achieving a modular integrated layout.

[0055] The interior of the enclosure 7 is divided into three independent and sealed chambers: the inlet chamber 71, the pneumatic control chamber 72, and the outlet chamber 73, by flame-retardant and insulating partitions. The three chambers are arranged in a partitioned layout, each with its own function, electrically isolated, and do not interfere with each other.

[0056] The inlet cavity 71 is the wiring area on the left. The docking structure between the inlet conductive component 1 and the main inlet cable is centrally arranged inside the inlet cavity 71 to complete the electrical connection assembly and insulation protection on the inlet side. The pneumatic control cavity 72 is the core action area in the middle. The on / off connection structure of the inlet conductive component 1 and the outlet conductive component 2, as well as the pneumatic drive structure, are centrally arranged inside the pneumatic control cavity 72 to realize the branch conduction and separation actions. The outlet cavity 73 is the lower wiring area. The docking structure between the outlet conductive component 2 and the outlet branch cable is arranged inside the outlet cavity 73 to complete the electrical connection assembly on the outlet side.

[0057] Furthermore, in one embodiment, the housing 7 is equipped with a protective and convenient assembly structure. A rain cap is fixedly installed on the top of the housing 7. The rain cap adopts an inclined rain-shielding structure, which can effectively block rainwater and dust, prevent rainwater from seeping into the interior of the housing 7, adapt to outdoor open-air installation conditions, and greatly improve the outdoor waterproof protection performance of the equipment.

[0058] The bottom of the enclosure 7 is fixed with multiple support legs. The legs are made of hard, rust-proof metal, which can raise the entire enclosure 7 and keep the bottom of the enclosure 7 suspended from the installation ground. This effectively avoids water accumulation and moisture from the ground from corroding the bottom of the enclosure, while also facilitating the routing of cables at the bottom and maintenance work.

[0059] The end of the enclosure 7 is provided with a first door, a second door, and a third door. The first door, the second door, and the third door correspond to the inlet cavity 71, the pneumatic control cavity 72, and the outlet cavity 73, respectively. Each door can be opened and closed independently, and wiring, inspection, and maintenance can be carried out separately according to the internal structure of the corresponding cavity without the need to open the whole enclosure, which greatly improves the convenience of equipment operation and maintenance.

[0060] The working process of the intelligent power distribution fault isolation actuator provided in this application is as follows: 1. Overall installation process before use; The installation of this device adopts a modular, step-by-step assembly method, with the entire unit relying on enclosure 7 as the integrated carrier to complete the fixing and wiring installation. First, enclosure 7 is hoisted and fixed to the power distribution installation position. The rust-proof metal legs at the bottom of enclosure 7 raise the cabinet off the ground to prevent ground moisture and water corrosion, while ensuring sufficient space for bottom wiring. The rain cap on the top of enclosure 7 remains in a protective state throughout the process, meeting the dustproof and waterproof requirements of outdoor installation environments.

[0061] During the installation phase, the internal core components are first fixed and assembled. The incoming conductive assembly 1 is installed and fixed as a whole in the incoming cavity 71 inside the box 7, so that the insulating box 15 completely houses the first copper busbar 12, multiple static conductive rods 11 and other live components. The first copper column 13 penetrates through the insulating box 15 and is exposed, ensuring that the incoming terminal block 14 is in the wiring position. At the same time, multiple sets of guide sleeves 16 are coaxially fixed to the bottom of the insulating box 15, vertically aligned with the corresponding static conductive rods 11, providing a precise guiding reference for the subsequent sliding action of the moving conductive rod 21.

[0062] Subsequently, the outgoing conductive assembly 2, the reset mechanism 4, and the pneumatic actuator 3 are matched and assembled. The copper tube 22, the second copper busbar 23, the second copper column 24, and the outgoing terminal block 25 are assembled into an integrated fixed conductive assembly. The moving conductive rod 21 is vertically slidably inserted into the copper tube 22. The reset mechanism 4 is vertically installed at the bottom of the copper tube 22, so that the telescopic end of the reset mechanism 4 abuts against the center of the bottom end of the moving conductive rod 21 without gap. Each set of pneumatic actuators 3 is installed below the outgoing conductive assembly 2 and is fixedly connected to the bottom end of the moving conductive rod 21 through the insulating connector 32 to achieve electromechanical isolation transmission.

[0063] Finally, the gas circuit and electrical control system installation is completed. The gas tank 33, gas pump 34, inflation pipe 35, first valve body 36, deflation pipe 37, and second valve body 38 are sequentially connected and assembled to form a complete inflation / deflation gas circuit, ensuring a leak-free gas circuit. Multiple through-type electrical parameter acquisition units 5 are fitted one-to-one onto each outgoing branch cable. The electrical parameter acquisition units 5 are signal-connected to the main controller 6, and the main controller 6 is electrically connected to each solenoid valve body and pneumatic actuator 3, completing the wiring of the entire control system. After installation, each independent enclosure door is closed, and the first, second, and third enclosure doors achieve compartment sealing protection, completing the preparation for the entire machine's installation and commissioning.

[0064] 2. Normal fit and conduction working process; When the device is operating normally with power, the entire unit is in a closed and conductive state, and all structures maintain stable and coordinated operation. The air pump 34 continuously pressurizes the air tank 33, keeping the air tank 33 in a high-pressure energy storage state for a long time, and the equipment is in a ready-to-operate state. At this time, the first valve body 36 and the second valve body 38 are both in the closed state, and there is no air pressure input inside the cylinder drive mechanism 31, which remains in a depressurized and retracted state, with no upward or downward driving force.

[0065] The reset mechanism 4 continuously outputs an upward elastic pushing force, pushing the conductive rod 21 to slide vertically upward along the inside of the copper tube 22 and through the guide sleeve 16, so that the top end face of the moving conductive rod 21 is tightly pressed against the bottom end face of the corresponding stationary conductive rod 11, achieving stable surface contact and conduction. At this time, the total power of the incoming cable is conducted to the first copper busbar 12 through the incoming terminal block 14 and the first copper post 13, and then evenly distributed to each stationary conductive rod 11 by the first copper busbar 12. It is then guided into the copper tube 22 through the contacting and conducting moving conductive rod 21, and finally transmitted to the outgoing terminal block 25 through the second copper busbar 23 and the second copper post 24, providing stable power supply to the load at the rear end of each outgoing branch cable.

[0066] Throughout the entire operation, the insulation box 15 provides full insulation protection for the live components of the incoming line, and the guide sleeve 16 constrains the vertical movement accuracy of the moving conductive rod 21, ensuring long-term contact and conduction without deviation. The multi-cavity partition structure ensures that the incoming line wiring, pneumatic operation, and outgoing line wiring do not interfere with each other. At the same time, each electrical parameter acquisition unit 5 continuously collects the voltage and current parameters of each outgoing branch and uploads them to the main controller 6 in real time. The main controller 6 continuously compares the operating parameters and monitors the normal operation status of the line, ensuring that each branch is independently and stably powered without interference.

[0067] 3. Fault isolation and disconnection working process; When any outgoing branch cable experiences a short circuit, overload, leakage, or other fault, the electrical parameter acquisition unit 5 of the corresponding branch acquires the abnormal electrical parameter signal and transmits it to the main controller 6 in real time. The main controller 6 quickly calculates and determines the faulty branch and accurately outputs the isolation control command for the corresponding branch.

[0068] After receiving the command, the corresponding branch pneumatic system is activated: the first valve body 36 is opened and the second valve body 38 remains closed. The high-pressure gas stored inside the gas tank 33 is quickly rushed into the cylinder drive mechanism 31 through the inflation pipe 35, pushing the moving end of the cylinder drive mechanism 31 to extend vertically downward. Through the insulating connector 32, the driving conductive rod 21 overcomes the elastic force of the reset mechanism 4 and slides vertically downward precisely along the copper pipe 22 and the guide sleeve 16.

[0069] The moving conductive rod 21 continues to descend, completely separating its top end from the bottom end of the stationary conductive rod 11, thus completely cutting off the conductive circuit of the faulty branch and achieving independent power-off isolation for a single branch. During this process, the moving conductive rod 21 descends and presses against the reset mechanism 4, causing the reset mechanism 4 to compress and store force, reserving elasticity for subsequent automatic reset and closing. The pneumatic actuators 3 of the other normal branches do not operate, and the moving conductive rod 21 remains in contact with the stationary conductive rod 11, maintaining continuous normal power supply, thus achieving individual isolation of the faulty branch and uninterrupted power supply to the normal branches.

[0070] After the fault is identified and the circuit is restored to normal, the main controller 6 releases the isolation command, the first valve body 36 closes to cut off the gas supply passage, the second valve body 38 opens, and the high-pressure gas inside the cylinder drive mechanism 31 is quickly released through the vent pipe 37, and the cylinder driving force disappears. At this time, the reset mechanism 4 releases its elastic stored force, pushes the conductive rod 21 upward to reset vertically, and re-engages tightly with the stationary conductive rod 11 to conduct electricity. The branch circuit is restored to normal power supply, and the equipment returns to normal operating conditions.

[0071] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An intelligent power distribution fault isolation actuator, characterized in that, include; Incoming line conductive assembly (1), used to connect the incoming line main cable; Multiple outgoing conductive components (2), each of the outgoing conductive components (2) is in contact with the incoming conductive component (1) and is used to connect outgoing branch cables; Multiple pneumatic actuators (3) correspond one-to-one with multiple outgoing conductive components (2), and the pneumatic actuators (3) are connected to the corresponding outgoing conductive components (2); The monitoring and control unit is used to collect the current and voltage parameters of each outgoing branch cable in real time and determine the operating status. When the operating status is determined to be abnormal, the corresponding pneumatic actuator (3) is controlled to act, driving the corresponding outgoing conductive component (2) to separate from the incoming conductive component (1) to realize the power disconnection and isolation of the faulty branch.

2. The intelligent power distribution fault isolation execution device according to claim 1, characterized in that, The incoming line conductive assembly (1) includes a static conductive rod (11), a first copper busbar (12), a first copper column (13), and an incoming line terminal block (14). Multiple static conductive rods (11) are equidistantly arranged on the first copper busbar (12). Each static conductive rod (11) corresponds to a multiple outgoing conductive assembly (2). The outgoing conductive assembly (2) is in contact with the corresponding static conductive rod (11) and conducts electricity. One end of the first copper column (13) is connected to the end of the first copper busbar (12), and the other end is connected to the incoming line terminal block (14), which is used to connect the incoming main cable.

3. The intelligent power distribution fault isolation actuator according to claim 2, characterized in that, The incoming conductive assembly (1) also includes an insulating box (15) and a guide sleeve (16). The insulation box (15) has an inner cavity, and the first copper busbar (12) and all the static conductive rods (11) are located in the inner cavity. The first copper column (13) extends outward from the insulation box (15). Multiple guide sleeves (16) correspond one-to-one with multiple static conductive rods (11). The guide sleeves (16) are located at the bottom of the insulation box (15) and are connected to the insulation box (15). The guide sleeves (16) are coaxial with the corresponding static conductive rods (11).

4. The intelligent power distribution fault isolation execution device according to claim 1, characterized in that, The outgoing conductive component (2) includes a fixed conductive component and a movable conductive rod (21). The movable conductive rod (21) is slidably inserted into the fixed conductive component and forms an electrical connection. The pneumatic actuator (3) is driven and cooperates with the movable conductive rod (21). The movable conductive rod (21) is either in contact with the inlet conductive component (1) or disconnected, thereby realizing the switching of the circuit on and off.

5. The intelligent power distribution fault isolation execution device according to claim 4, characterized in that, The fixed conductive assembly includes a copper tube (22), a second copper busbar (23), a second copper column (24), and a terminal block (25). The copper tube (22), the second copper busbar (23), the second copper column (24) and the outgoing terminal (25) are electrically connected in sequence, and the outgoing terminal (25) is used to connect the outgoing branch cable.

6. The intelligent power distribution fault isolation execution device according to claim 5, characterized in that, It also includes a reset mechanism (4); Multiple reset mechanisms (4) are arranged one-to-one with multiple outgoing conductive components (2). Each reset mechanism (4) has a telescopic end that extends into the copper tube (22) and abuts against the moving conductive rod (21). The reset mechanism (4) is used to drive the moving conductive rod (21) to reset and close the circuit.

7. The intelligent power distribution fault isolation execution device according to claim 1, characterized in that, The pneumatic actuator (3) includes an air filling and discharging assembly, a cylinder drive mechanism (31), and an insulating connector (32). The cylinder drive mechanism (31) has a moving end, which is connected to one end of the insulating connector (32), and the other end of the insulating connector (32) is connected to the outgoing conductive assembly (2). The inflation / deflation assembly is connected to the cylinder drive mechanism (31) and is used to control the extension and retraction of the cylinder drive mechanism (31).

8. The intelligent power distribution fault isolation execution device according to claim 7, characterized in that, The inflation / deflation assembly includes an air tank (33), an air pump (34), an inflation pipe (35), a first valve body (36), a deflation pipe (37), and a second valve body (38). The air pump (34) is connected to the air tank (33) and is used to fill the air tank (33) with air so that the air tank (33) maintains a high pressure state. The two ends of the inflation tube (35) are respectively connected to the air tank (33) and the cylinder drive mechanism (31), and the first valve body (36) is disposed on the inflation tube (35). The vent pipe (37) is connected to the cylinder drive mechanism (31), and the second valve body (38) is disposed on the vent pipe (37).

9. The intelligent power distribution fault isolation execution device according to claim 1, characterized in that, The monitoring and control unit includes an electrical parameter acquisition unit (5) and a main controller (6); Multiple electrical parameter acquisition units (5) are set up one-to-one with multiple outgoing branch cables. The electrical parameter acquisition units (5) are used to acquire the voltage and current parameters of the corresponding outgoing branch cables and generate parameter signals to be transmitted to the main controller (6). The main controller (6) is used to determine the operating status of the outgoing branch cable according to the parameter signal. When an abnormal fault occurs in the outgoing branch cable, it outputs a corresponding control command to drive the corresponding pneumatic actuator to achieve isolation and power disconnection of the faulty branch.

10. The intelligent power distribution fault isolation execution device according to claim 1, characterized in that, It also includes the housing (7); The inlet conductive assembly (1), the outlet conductive assembly (2), the pneumatic actuator (3), and the monitoring and control unit are all housed inside the housing (7); The housing (7) is provided with an inlet cavity (71), a pneumatic control cavity (72), and an outlet cavity (73); the inlet conductive assembly (1) and the main inlet cable are electrically connected in the inlet cavity (71); the inlet conductive assembly (1) and the outlet conductive assembly (2) are connected or disconnected in the pneumatic control cavity (72); the outlet conductive assembly (2) and the outlet branch cable are electrically connected in the outlet cavity (73).

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