A power distribution assembly for cable installation

Abstract

The present invention relates to the field of cable power distribution technology, and discloses a power distribution assembly for cable installation. It includes a power distribution cabinet and multiple power distribution systems installed in the power distribution cabinet. The power distribution system includes a power distribution shell, which is provided with a power input room, a power distribution room, and a water-cooling room that are isolated from each other. A shielding cover is installed on the power distribution shell, and an electrically rotatable insulating belt a is provided on the power distribution shell. The insulating belt a is provided with an inspection port that is compatible with the shielding cover. A terminal block is provided below the power distribution shell, and a group of regularly distributed connection terminals are installed on the terminal block. The bottom end of each connection terminal is provided with a threading tube, and the threading tube is inflated and sealed by a pneumatic sealing assembly. An intelligent power distribution controller and an insulation display assembly are respectively installed in the power distribution room. The present invention constructs a multiple coordinated protection mechanism of leakage color change warning, expansion isolation, and electromagnetic shielding. When leakage occurs, the electrochromic warning layer of the insulating belt a and the insulating belt b changes color rapidly, and the fault location can be indicated within 0.5 seconds.

Description

Technical Field

[0001] The present invention relates to the technical field of cable power distribution, in particular to a power distribution assembly for cable installation. Background Art

[0002] When installing cables, a distribution cabinet is required. In the prior art, the patent document with publication number CN106451102B discloses a distribution cabinet, which includes a cabinet body, a door body and a wiring device. A first installation area and a second installation area are provided in the cabinet body. The first installation area is used to install the power distribution equipment. The second installation area is adjacent to the first installation area and is used to guide the installation of cables. The cables in the above-mentioned distribution cabinet pass between the parallel partitions and are neatly arranged along the length direction of the partitions under the isolation and guidance of the partitions and then connected to the power distribution equipment. In this way, the cables in the cabinet are orderly accommodated through the wiring device. Cables are placed neatly, which effectively improves wiring efficiency. Although the above-mentioned distribution components optimize the cable layout through the cable arrangement device, the following technical problems still exist: leakage detection relies on a single sensor, fault location is time-consuming, physical isolation action is delayed, and there are great safety hazards. Existing technologies mostly rely on circuit breaker tripping and lack multiple coordinated protection mechanisms such as leakage color change warning, expansion isolation and electromagnetic shielding. The sealing structure of the wire conduit of traditional distribution components is simple and is easily invaded by environmental moisture and dust, resulting in a decrease in insulation performance and a significant increase in leakage risk. Conventional air cooling or static liquid cooling systems have low heat exchange efficiency.

[0003] Based on this, the present invention provides a power distribution assembly for cable installation to solve the technical problems raised in the above background technology. Summary of the Invention

[0004] The present invention aims to provide a power distribution assembly for cable installation, which solves the problems mentioned in the background art: the leakage detection of existing power distribution assemblies relies on a single sensor, which is time-consuming to locate faults, has delayed physical isolation action, and poses a significant safety hazard. The existing technology mostly relies on circuit breaker tripping and lacks the multiple coordinated protection mechanisms of leakage color change warning, expansion isolation, and electromagnetic shielding. The traditional power distribution assembly has a simple threading pipe sealing structure and is easily intruded by environmental moisture and dust, resulting in reduced insulation performance and a significantly increased risk of leakage.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A power distribution assembly for cable installation includes a power distribution cabinet and multiple power distribution systems installed in the power distribution cabinet. The power distribution system includes a power distribution shell, and the power distribution shell is provided with a power input room, a power distribution room and a water cooling room that are isolated from each other.

[0007] A shielding cover is installed on the power distribution shell, and an electrically rotatable insulating belt a is provided on the power distribution shell. The insulating belt a is provided with an inspection port adapted to the shielding cover;

[0008] A terminal block is provided below the power distribution housing. A set of regularly distributed connection terminals are installed on the terminal block. A conduit is provided at the bottom of each connection terminal. The conduit is sealed by an inflatable pneumatic sealing assembly. An intelligent power distribution controller and an insulation display assembly are installed in the power distribution room.

[0009] The insulation display assembly includes an electrically rotatable insulation belt b, on which a transparent display area is fixedly provided, which cooperates with the display screen. When leakage occurs, the insulation belts a and b automatically change color and expand to provide leakage and electromagnetic shielding.

[0010] The water-cooling chamber is filled with water-cooling liquid and is equipped with a reciprocating drive system and a set of heat dissipation modules;

[0011] Each heat dissipation module includes a spiral heat exchange coil. The airflow in the power distribution room circulates in the spiral heat exchange coil. A heat dissipation shaft is provided in the spiral heat exchange coil. A set of elastic spoiler strips are installed on the heat dissipation shaft and on the inner side of each spiral heat exchange coil. The heat dissipation shaft and the air distribution ring are driven by a reciprocating drive system and cyclically cycle forward and reverse, and the two rotation directions are opposite.

[0012] A pressurized isolation system is provided in the power entry chamber, and the pressurized isolation system normally introduces positive pressure sulfur hexafluoride insulating gas into the power entry chamber.

[0013] As a preferred technical solution of the present invention, two first motors and two second motors are respectively installed on the distribution shell, and two lower rollers and two upper rollers are rotatably installed on the distribution shell. The two ends of the insulating protective tape a are respectively fixedly installed on the two lower rollers, and the two ends of the insulating protective tape b are respectively fixedly installed on the two upper rollers. The output shaft ends of the two first motors are respectively fixedly connected to the two lower rollers, and the output shaft ends of the two second motors are respectively fixedly connected to the two upper rollers. Two guide rollers are also rotatably installed on the distribution shell, and the two guide rollers are both in contact with the insulating protective tape b.

[0014] As a preferred technical solution of the present invention, the insulating protective tape a and the insulating protective tape b both include an electrochromic warning layer, a transparent flexible substrate layer, a reversible expansion layer and an electromagnetic shielding layer, which are arranged in sequence from the inside to the outside. The transparent flexible substrate layer is a silicone rubber material, and the electrochromic warning layer is a polyaniline film doped with nano-titanium dioxide. The electrochromic warning layer triggers color change when the electric field intensity exceeds a threshold. The reversible expansion layer is composed of a transparent shape memory elastomer substrate and a closed-cell silicone rubber microsphere composite. The reversible expansion layer integrates PTC heating and semiconductor refrigeration elements. When the reversible expansion layer leaks electricity, it triggers a 300% to 400% volume expansion at 65°C to 75°C, and returns to its original state when it is not leaking electricity. The light transmittance of the transparent flexible substrate layer and the reversible expansion layer is both 85%. The electromagnetic shielding layer is composed of a single-layer graphene film and a transparent ion gel layer composite, and the light transmittance of the electromagnetic shielding layer is 97%.

[0015] As a preferred technical solution of the present invention, the heat dissipation module also includes two air guide rings, each of which is connected to a ventilation joint, the other ends of the two ventilation joints are connected to the inner cavity of the distribution room, a fan is installed in the two ventilation joints, the inner walls of the two air guide rings are rotatably connected to a distribution air vortex ring, the inner cavity of the distribution air vortex ring is connected to the inner cavity of the air guide ring, a spiral heat exchange coil is fixedly connected between the two distribution air vortex rings, and a heat dissipation shaft is rotatably installed between the two distribution air vortex rings, the heat dissipation shafts on the multiple heat dissipation modules are linked by a first belt, and the multiple distribution air vortex rings on the heat dissipation modules are linked by a second belt.

[0016] As a preferred technical solution of the present invention, the reciprocating drive system includes a motor installed in a distribution shell, a half-tooth gear is installed on the output shaft end of the motor, a reciprocating shaft is rotatably installed on the distribution shell, a driven gear is installed on the top of the reciprocating shaft, the half-tooth gear is transmission-connected to the driven gear, the radius of the half-tooth gear is the same as the radius of the driven gear, an energy storage torsion spring is fixedly provided at the rotating connection between the reciprocating shaft and the distribution shell, an intermediate bevel gear is installed on the bottom end of the reciprocating shaft, one side bevel gear is installed on the wind distribution ring and the heat dissipation shaft, the two side bevel gears are transmission-connected to the intermediate bevel gear, and the intermediate bevel gear is arranged between the two side bevel gears.

[0017] As a preferred technical solution of the present invention, a battery is integrated on the intelligent power distribution controller, a display screen is fixedly provided on the intelligent power distribution controller, the display screen is arranged on the inner side of the insulating belt b, a handle is fixedly installed on the bottom surface of the terminal block, a group of elastic limiters are installed between the terminal block and the distribution shell, two symmetrically arranged electromagnets are installed on the terminal block and magnetically cooperate with the distribution shell, and the electromagnets are powered by a battery.

[0018] As a preferred technical solution of the present invention, the pneumatic sealing assembly includes an air pump installed in the power input room, and a sealing ring bag is installed on the inner wall of each wire threading tube. The port of the air pump is connected to a multi-way hose, and the inner cavity of each sealing ring bag is connected to the multi-way hose. An air pressure probe is installed on the multi-way hose, and the data end of the air pressure probe is connected to the data of the intelligent power distribution controller. A fiber grating sensor is embedded in the inner wall of the sealing ring bag to monitor the cable displacement in real time and feed it back to the intelligent power distribution controller, triggering the electromagnet of the terminal board to perform position compensation, and each wire threading tube is provided with a cable branch connected to the corresponding connection terminal.

[0019] As a preferred technical solution of the present invention, it also includes a leakage detection and circuit-breaking module, which includes a dynamic gate seat movably installed in the power-inlet chamber and a fixed gate seat fixedly installed in the power-inlet chamber. A conductive gate block is provided on the fixed gate seat corresponding to each connection terminal. Each connection terminal is electrically connected to a conductive gate block at a corresponding position through a first soft wire. A guide groove slidably connected to the conductive gate block is provided inside the dynamic gate seat and corresponding to each conductive gate block. Each guide groove is provided with a conductive part adapted to the conductive gate block. Each conductive part is electrically connected to the intelligent power distribution controller through a second soft wire. A linear actuator and a leakage sensor are respectively installed inside the power-inlet chamber. The linear actuator is transmission-connected to the dynamic gate seat. The data end of the leakage sensor is data-connected to the intelligent power distribution controller. An audible and visual alarm data-connected to the intelligent power distribution controller is installed on the top of the distribution shell.

[0020] As a preferred technical solution of the present invention, the pressurized isolation system includes a temperature and humidity sensor and an air pressure probe installed in the power input chamber, an air pump and an electric heating plate are installed in the power input chamber, the air intake port of the air pump is connected to the power input chamber, and the air outlet port of the air pump is connected to the outside world, a gas storage tank is installed in the power input chamber, and an air inlet valve connected to the power input chamber is installed on the gas storage tank, sulfur hexafluoride gas is stored in the gas storage tank, and the sulfur hexafluoride gas is doped with 1% to 3% volume fraction of perfluorohexanone.

[0021] As a preferred technical solution of the present invention, the intelligent power distribution controller collects current, voltage and temperature data of each connection terminal, calculates the optimal load distribution ratio through the fuzzy PID control algorithm embedded in the intelligent power distribution controller, and dynamically adjusts the power supply power of each branch. The intelligent power distribution controller predicts the peak load based on historical power consumption data and load prediction model. The intelligent power distribution controller collects the differential capacitance signal and current harmonic analysis of the leakage sensor to locate the leakage or short-circuit fault branch, and drives the dynamic gate seat and the fixed gate seat through the linear actuator to physically isolate the fault line, and at the same time triggers the sound and light alarm and the remote Internet of Things alarm.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention constructs a multiple coordinated protection mechanism of leakage color change warning, expansion isolation and electromagnetic shielding. When leakage occurs in insulating tape a and insulating tape b, the electrochromic warning layer changes color rapidly, indicating the fault location within 0.5 seconds. The reversible expansion layer triggers 300% to 400% volume expansion at 65°C to 75°C, enhancing the insulation effect. The electromagnetic shielding layer uses graphene and ion gel, with a shielding efficiency of more than 30dB, preventing electromagnetic interference from affecting peripheral equipment. At the same time, the leakage detection and circuit breaker module can locate the fault branch within 20ms after the leakage sensor detects the fault, drive the dynamic gate seat to separate from the fixed gate seat, physically isolate the fault line, and trigger an audible and visual alarm and a remote Internet of Things alarm. The existing leakage detection technology relies on a single sensor, fault location is time-consuming, and physical isolation action is delayed. The present invention effectively overcomes these defects and greatly reduces safety hazards.

[0024] 2. The pneumatic sealing component in the present invention inflates the sealing ring bag on the inner wall of the threading pipe through an air pump, and the air pressure probe monitors the air pressure in real time to ensure the stability of the air pressure. The fiber optic Bragg grating sensor on the inner wall of the sealing ring bag monitors the cable displacement in real time. Once displacement occurs, the electromagnet on the terminal board is immediately triggered to perform position compensation. This design realizes the sealed electrical isolation protection of the threading pipe and the wires. Through the dual protection of air pressure monitoring and displacement monitoring, the sealing performance is significantly improved, and the entry of external impurities such as water vapor and dust is avoided, and the risk of leakage caused by environmental factors is reduced. In comparison, the sealing structure of the threading pipe of the traditional distribution component is simple and is easily affected by the environment, resulting in a decrease in insulation performance. The present invention has made a qualitative leap in this regard.

[0025] 3. In the water-cooled chamber of the present invention, the heat dissipation module is cleverly designed. The heat dissipation shaft and the air distribution ring in the spiral heat exchange coil rotate forward and reverse periodically with opposite rotation directions under the action of the reciprocating drive system. The elastic spoiler strips on the heat dissipation shaft increase airflow disturbance. At the same time, multiple heat dissipation modules work together through belt linkage, greatly improving the heat exchange efficiency. Compared with conventional air cooling or static liquid cooling systems, it effectively reduces heat accumulation in the distribution room, ensures the stable operation of internal electrical components, and extends the service life of the equipment.

[0026] 4. In the present invention, under normal conditions, the pressurized isolation system introduces positive-pressure sulfur hexafluoride insulating gas into the distribution room, doped with 1% to 3% perfluorohexanone by volume. The temperature and humidity sensors and the air pressure probe monitor the indoor temperature, humidity and air pressure in real time. In the event of an abnormality, the air pump and the electric heating plate are adjusted in coordination. This design not only improves the sealing of the distribution system and prevents the entry of external impurities, but also the good insulation properties of sulfur hexafluoride gas and the enhanced fire extinguishing properties of perfluorohexanone provide a more stable and safe operating environment for the internal components of the distribution system, solving the shortcomings of the existing distribution system in terms of sealing and fire resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a power distribution assembly for cable installation according to the present invention;

[0028] Figure 2 It is a structural diagram of the distribution shell;

[0029] Figure 3 This is a structural diagram of the intelligent power distribution controller and the sound and light alarm;

[0030] Figure 4 It is a structural diagram of the water cooling chamber and the air pump;

[0031] Figure 5 It is a structural diagram of the gas tank and the connection terminals;

[0032] Figure 6 This is a structural diagram of the intelligent power distribution controller and battery;

[0033] Figure 7 for Figure 6 Schematic diagram of the local enlarged structure at A in the middle;

[0034] Figure 8 for Figure 6 Schematic diagram of the local enlarged structure at B in the middle;

[0035] Figure 9 It is a structural diagram of the electromagnet and the threading tube;

[0036] Figure 10 It is a structural diagram of the elastic limiter and the conductive brake block;

[0037] Figure 11 Schematic diagram of the cross-sectional structure of the sealing ring capsule;

[0038] Figure 12 It is a structural diagram of the spiral heat exchange coil and ventilation joint;

[0039] Figure 13 Schematic diagram of the cross-sectional structure of the spiral heat exchange coil;

[0040] Figure 14 Schematic diagram of the structure of the insulating protective tape b and the transparent display area;

[0041] Figure 15 Schematic diagram of the structure of insulating tape a;

[0042] Figure 16 Schematic diagram of the cross-sectional structure of the insulating tape a.

[0043] Among them: 1. Distribution shell; 2. Power supply room; 3. Distribution room; 4. Water cooling room; 5. Terminal block; 6. Elastic limiter; 7. Connection terminal; 8. Threading tube; 9. Shielding cover; 10. Lower roller; 11. Insulation tape a; 12. Inspection port; 13. Air pump; 14. Sealing ring capsule; 15. Multi-way hose; 16. Dynamic brake seat; 17. Fixed brake seat; 18. Conductive brake block; 19. Intelligent power distribution controller; 20. Linear actuator; 21. Leakage sensor; 22. Battery; 23. Sound and light alarm; 24. Upper roller; 25. Guide roller; 26. Insulation tape b; 27. Transparent Display area; 28. Air guide ring; 29. Ventilation joint; 30. Air distribution swirl ring; 31. Spiral heat exchange coil; 32. Heat dissipation shaft; 33. Elastic spoiler strip; 34. Motor; 35. Half-tooth gear; 36. Reciprocating shaft; 37. Driven gear; 38. Energy storage torsion spring; 39. Temperature and humidity sensor; 40. Air pressure probe; 41. Electric heating plate; 42. Gas tank; 43. Electromagnet; 44. First motor; 45. Second motor; 46. Power distribution cabinet; 1101. Electrochromic warning layer; 1102. Transparent flexible substrate layer; 1103. Reversible expansion layer; 1104. Electromagnetic shielding layer. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] See also Figure 1-16 As shown, a power distribution assembly for cable installation includes a power distribution cabinet 46 and multiple power distribution systems installed in the power distribution cabinet 46. The power distribution system includes a power distribution shell 1. The power distribution shell 1 is provided with a power input room 2, a power distribution room 3 and a water cooling room 4 that are isolated from each other.

[0046] The power distribution cabinet 46 is provided with a power bus and a ground terminal connected to the power distribution system;

[0047] A shielding cover 9 is installed on the power distribution shell 1. An electrically rotatable insulating belt a11 is provided on the power distribution shell 1. An inspection port 12 adapted to the shielding cover 9 is provided on the insulating belt a11.

[0048] A terminal block 5 is provided below the power distribution housing 1. A group of regularly distributed connection terminals 7 are mounted on the terminal block 5. A threading tube 8 is provided at the bottom end of each connection terminal 7. The threading tube 8 is inflated and sealed by a pneumatic sealing assembly.

[0049] The pneumatic sealing assembly includes an air pump 13 installed in the power input chamber 2. A sealing ring capsule 14 is installed on the inner wall of each threading tube 8. The port of the air pump 13 is connected to a multi-way hose 15. The inner cavity of each sealing ring capsule 14 is connected to the multi-way hose 15. An air pressure probe 40 is installed on the multi-way hose 15. The data end of the air pressure probe 40 is connected to the intelligent power distribution controller 19. A fiber grating sensor is embedded in the inner wall of the sealing ring capsule 14 to monitor the cable displacement in real time and feed it back to the intelligent power distribution controller 19, triggering the electromagnet 43 of the terminal block 5 to perform position compensation. Each threading tube 8 is provided with a cable branch connected to the corresponding connection terminal 7.

[0050] A handle is fixedly mounted on the bottom surface of the terminal block 5. A set of elastic limiters are installed between the terminal block 5 and the power distribution housing 1. Two electromagnets 43 are symmetrically arranged and magnetically matched with the insulating housing and are installed on the terminal block 5. The electromagnets 43 are powered by the battery 22.

[0051] When the pneumatic sealing component is working, the air pump 13 fills the gas into the sealing ring bag 14 on the inner wall of the threading pipe 8 through the multi-way hose 15. The air pressure probe 40 monitors the air pressure data in real time and feeds it back to the intelligent power distribution controller 19. If the air pressure is abnormal, air can be replenished in time or a leak can be checked. The fiber optic Bragg grating sensor on the inner wall of the sealing ring bag 14 can monitor the cable displacement in real time. Once the cable is displaced, it is immediately fed back to the intelligent power distribution controller 19 to trigger the electromagnet 43 on the terminal board 5 to perform position compensation to ensure stable cable connection. This component solves the problem of insufficient sealing of the existing power distribution system and effectively realizes the sealed electrical isolation protection of the threading pipe 8 and the wires. Compared with the existing technology, it significantly improves the sealing performance through the dual protection of air pressure monitoring and displacement monitoring, prevents the entry of impurities such as external moisture, dust, etc., reduces the risk of leakage caused by environmental factors, and improves the stability and safety of the power distribution system operation.

[0052] The distribution room 3 is equipped with an intelligent distribution controller 19 and an insulation display component;

[0053] The intelligent power distribution controller 19 is integrated with a battery 22, and a display screen is fixedly provided on the intelligent power distribution controller 19, and the display screen is provided on the inner side of the insulating protective tape b26;

[0054] The intelligent power distribution controller 19 integrates a battery 22 to provide a backup power supply for the entire power distribution component in the event of a power outage or external power supply anomaly, ensuring that important data is not lost and that some key functions continue to operate. The intelligent power distribution controller 19 collects current, voltage and temperature data from each connection terminal 7, calculates the optimal load distribution ratio through an embedded fuzzy PID control algorithm, dynamically adjusts the power supply of each branch, and improves power efficiency. At the same time, based on historical power consumption data and load prediction models, the peak load is predicted and countermeasures are prepared in advance to prevent equipment damage due to overload. The display screen is set on the inside of the insulating belt b26, which is convenient for operators to view the distribution system data, and the insulating belt b26 can protect the display screen. This solves the problems of the existing distribution system's inability to efficiently distribute loads and the easy loss of data during power outages. Compared with the existing technology, it not only realizes intelligent power distribution and improves energy utilization efficiency, but also enhances the reliability of the equipment under abnormal conditions, making it convenient for users to obtain distribution system operation information at any time.

[0055] The insulation display assembly includes an electrically rotatable insulation belt b26, on which a transparent display area 27 is fixedly provided for cooperation with the display screen. When leakage occurs, the insulation belts a11 and b26 automatically change color and expand to provide leakage and electromagnetic shielding.

[0056] Two first motors 44 and two second motors 45 are respectively installed on the distribution shell 1. Two lower rollers 10 and two upper rollers 24 are rotatably installed on the distribution shell 1. The two ends of the insulating protective tape a11 are respectively fixedly installed on the two lower rollers 10, and the two ends of the insulating protective tape b26 are respectively fixedly installed on the two upper rollers 24. The output shaft ends of the two first motors 44 are respectively fixedly connected to the two lower rollers 10, and the output shaft ends of the two second motors 45 are respectively fixedly connected to the two upper rollers 24. Two guide rollers 25 are also rotatably installed on the distribution shell 1, and the two guide rollers 25 are both in contact with the insulating protective tape b26;

[0057] The insulating protective tape a11 and the insulating protective tape b26 each include an electrochromic warning layer 1101, a transparent flexible substrate layer 1102, a reversible expansion layer 1103 and an electromagnetic shielding layer 1104 arranged in sequence from the inside to the outside. The transparent flexible substrate layer 1102 is a silicone rubber material, the electrochromic warning layer 1101 is a polyaniline film doped with nano-titanium dioxide, and the electrochromic warning layer 1101 is triggered to change color when the electric field intensity exceeds a threshold value. The reversible expansion layer 1103 is made of a transparent shape memory elastic material. The reversible expansion layer 1103 is composed of a composite of a flexible substrate and closed-cell silicone rubber microspheres. The reversible expansion layer 1103 integrates PTC heating and semiconductor cooling elements. When the reversible expansion layer 1103 leaks electricity, it triggers a 350% volume expansion at 70°C. When it is not leaking electricity, it cools down to 40°C and returns to its original state. The light transmittance of the transparent flexible substrate layer 1102 and the reversible expansion layer 1103 is 85%. The electromagnetic shielding layer 1104 is composed of a single-layer graphene film and a transparent ion gel layer. The light transmittance of the electromagnetic shielding layer 1104 is 97%.

[0058] When the power distribution system is operating normally, the first motor 44 and the second motor 45 drive the lower roller 10 and the upper roller 24 to rotate as needed, thereby controlling the positions of the insulating belt a11 and the insulating belt b26 to ensure their normal protection. Once a leakage occurs, the electrochromic warning layer 1101 in the insulating belt a11 and the insulating belt b26 automatically changes color to remind the operator that there is a risk of leakage. The reversible expansion layer 1103 triggers a 350% volume expansion at 70°C, further enhancing the insulation effect and achieving double electrical isolation protection in the leakage state. The electromagnetic shielding layer 1104 shields the electromagnetic interference generated by the leakage to prevent interference with other equipment. This structure solves the problem that the existing power distribution system is not convenient for double electrical isolation protection and anti-misoperation protection in the leakage state of the distribution system. Compared with the existing technology, through the multi-layer structure design and automatic color change and expansion functions, it can respond quickly in the event of leakage, provide more reliable insulation and electromagnetic shielding protection, reduce the risk of misoperation, and ensure the safety of personnel and equipment;

[0059] When leakage or short circuit occurs, the electrochromic warning layer 1101 changes color within 0.5 seconds under the electric field or temperature change, such as to blue or dark green, directly indicating the fault location;

[0060] The reversible expansion layer 1103 is heated to 70°C by heat generated by leakage current or actively heated, triggering the expansion of closed-cell silicone rubber microspheres and the volume expansion of the shape memory elastomer by 350%, forming an adaptive physical isolation barrier and enhancing the insulation strength. After the fault is resolved, the semiconductor refrigeration element is cooled to 40°C, and the expansion layer returns to its original state.

[0061] The electrochromic warning layer 1101 is composed of a polyaniline film doped with nano-titanium dioxide. Its color change principle is based on the synergistic effect of an electric field-triggered redox reaction and nanomaterials. When the local electric field intensity exceeds a preset threshold, the polyaniline molecular chain undergoes a reversible oxidation state transition from a neutral state to an intermediate state or a fully oxidized state. The change in the molecular conjugated structure causes a change in the light absorption characteristics. Macroscopically, the film color changes rapidly from transparent or light yellow to blue or dark green. The response time is ≤0.5 seconds. The doped nano-TiO2 forms a heterojunction structure with the polyaniline through hydrogen bonds. The wide bandgap characteristics and electron mobility of the doped nano-TiO2 reduce the reaction barrier, accelerate ion diffusion, and improve the color change speed and cyclic stability.

[0062] The local electric field generated by leakage current or the sensor feedback signal can actively regulate this process, and the transmittance change and color contrast can be precisely controlled by adjusting the TiO2 doping concentration and film thickness;

[0063] The electromagnetic shielding layer 1104 utilizes the high conductivity of graphene and the flexibility of ion gel to dissipate the leakage electromagnetic field energy through the eddy current effect, with a shielding efficiency of more than 30dB while maintaining light transmittance;

[0064] The transparent flexible substrate layer 1102 provides mechanical support and weather resistance;

[0065] The water-cooling chamber 4 is filled with water-cooling liquid and is equipped with a reciprocating drive system and a set of heat dissipation modules;

[0066] The water-cooling liquid filled in the water-cooling chamber 4 is a mixture of ethylene glycol and deionized water;

[0067] Each heat dissipation module includes a spiral heat exchange coil 31. The airflow in the power distribution room 3 circulates in the spiral heat exchange coil 31. A heat dissipation shaft 32 is provided in the spiral heat exchange coil 31. A set of elastic spoiler strips 33 are installed on the heat dissipation shaft 32 and on the inner side of each spiral heat exchange coil 31. The heat dissipation shaft 32 and the air distribution ring 30 are driven by a reciprocating drive system and periodically rotate forward and reverse, with the two rotating in opposite directions.

[0068] The heat dissipation module also includes two air guide rings 28, each of which is connected to a ventilation joint 29, the other ends of which are connected to the inner cavity of the power distribution room 3, and a fan is installed in each of the two ventilation joints 29. The inner walls of the two air guide rings 28 are rotatably connected to a wind vortex ring 30, the inner cavity of the wind vortex ring 30 is connected to the inner cavity of the air guide ring 28, a spiral heat exchange coil 31 is fixedly connected between the two wind vortex rings 30, and a heat dissipation shaft 32 is rotatably installed between the two wind vortex rings 30. The heat dissipation shafts 32 on multiple heat dissipation modules are linked by a first belt, and the wind vortex rings 30 on multiple heat dissipation modules are linked by a second belt.

[0069] The reciprocating drive system includes a motor 34 installed in the distribution shell 1, and a half-tooth gear 35 is installed on the output shaft end of the motor 34. A reciprocating shaft 36 is rotatably installed on the distribution shell 1, and a driven gear 37 is installed on the top of the reciprocating shaft 36. The half-tooth gear 35 is transmission-connected to the driven gear 37. The radius of the half-tooth gear 35 is the same as the radius of the driven gear 37. An energy storage torsion spring 38 is fixedly provided at the rotating connection between the reciprocating shaft 36 and the distribution shell 1. An intermediate bevel gear is installed at the bottom end of the reciprocating shaft 36. A side bevel gear is installed on a wind vortex ring 30 and a heat dissipation shaft 32. The two side bevel gears are both transmission-connected to the intermediate bevel gear, and the intermediate bevel gear is arranged between the two side bevel gears.

[0070] The motor 34 drives the half-tooth gear 35 to rotate, and the half-tooth gear 35 meshes with the driven gear 37 to drive the reciprocating shaft 36 to rotate. The energy storage torsion spring 38 plays a buffering and reset role. The reciprocating shaft 36 drives the intermediate bevel gear to rotate, and the intermediate bevel gear is connected to the side bevel gear on the wind vortex ring 30 and the heat dissipation shaft 32, so that the wind vortex ring 30 and the heat dissipation shaft 32 cycle forward and reverse and rotate in opposite directions. The airflow in the distribution room 3 enters the air guide ring 28 under the action of the fan, and enters the spiral heat exchange coil 31 through the wind vortex ring 30. The elastic spoiler strip 33 on the heat dissipation shaft 32 increases the airflow disturbance and improves the heat exchange efficiency. The heat dissipation shafts 32 and the wind vortex ring 30 of multiple heat dissipation modules are respectively linked by the first belt and the second belt to achieve coordinated work. This solves the problem of low heat dissipation efficiency of the existing distribution system. Compared with the existing technology, the special drive structure and heat exchange coil design enhance the heat dissipation effect, effectively reduce the temperature of the distribution room 3, ensure the stable operation of the internal electrical components, and extend the service life of the equipment.

[0071] It also includes a leakage detection and circuit-breaking module, which includes a dynamic gate seat 16 movably installed in the power-input chamber 2 and a fixed gate seat 17 fixedly installed in the power-input chamber 2. A conductive gate block 18 is provided on the fixed gate seat 17 at a position corresponding to each connection terminal 7. Each connection terminal 7 is electrically connected to a conductive gate block 18 at a corresponding position through a first soft wire. A guide groove slidably connected to the conductive gate block 18 is provided inside the dynamic gate seat 16 and at a position corresponding to each conductive gate block 18. Each guide groove is provided with a conductive part adapted to the conductive gate block 18, and each conductive part is electrically connected to the intelligent power distribution controller 19 through a second soft wire. A linear actuator 20 and a leakage sensor 21 are respectively installed inside the power-input chamber 2. The linear actuator 20 is transmission-connected to the dynamic gate seat 16, and the data end of the leakage sensor 21 is data-connected to the intelligent power distribution controller 19. An audible and visual alarm 23 data-connected to the intelligent power distribution controller 19 is installed on the top of the distribution shell 1.

[0072] The leakage sensor 21 monitors the circuit status in real time. When a leakage or short circuit fault is detected, the differential capacitance signal and current harmonic analysis data are transmitted to the intelligent distribution controller 19. After the intelligent distribution controller 19 locates the fault branch, it controls the linear actuator 20 to drive the dynamic gate seat 16 to move, so that the conductive part in the dynamic gate seat 16 is separated from the conductive gate block 18 on the fixed gate seat 17, thereby physically isolating the fault line. At the same time, the sound and light alarm 23 is triggered to sound an alarm, reminding the staff to deal with it in time. It can also realize remote monitoring through remote Internet of Things alarms. This module solves the problem of slow leakage response of the existing distribution system. Compared with the existing technology, the leakage response time is ≤20ms, which can quickly cut off the fault line, avoid the expansion of leakage accidents, ensure personnel safety and normal operation of equipment, and improve the safety and reliability of distribution components.

[0073] A pressurized isolation system is provided in the power entry chamber 2 , and the pressurized isolation system normally introduces positive pressure sulfur hexafluoride insulating gas into the power entry chamber 2 .

[0074] The pressurized isolation system includes a temperature and humidity sensor 39 and an air pressure probe 40 installed in the power input chamber 2. An air pump 13 and an electric heating plate 41 are installed in the power input chamber 2. The air intake port of the air pump 13 is connected to the power input chamber 2, and the air outlet port of the air pump 13 is connected to the outside world. A gas storage tank 42 is installed in the power input chamber 2. An air inlet valve connected to the power input chamber 2 is installed on the gas storage tank 42. Sulfur hexafluoride gas is stored in the gas storage tank 42, and the sulfur hexafluoride gas is doped with 1% to 3% volume fraction of perfluorohexanone.

[0075] The temperature and humidity sensor 39 and the air pressure probe 40 monitor the temperature, humidity and air pressure data in the power input chamber 2 in real time. When the temperature and humidity are abnormal, the air pump 13 and the electric heating plate 41 work together to adjust the indoor temperature and humidity. Under normal circumstances, the gas storage tank 42 is doped with sulfur hexafluoride gas with a volume fraction of 1% to 3% perfluorohexanone, and positive pressure gas is introduced into the power input chamber 2 through the air inlet valve to form a positive pressure environment to prevent external impurities from entering. Sulfur hexafluoride gas has good insulation properties, and the doped perfluorohexanone can enhance the fire extinguishing performance. This solves the problems of insufficient sealing of the existing power distribution system and poor fire protection performance under abnormal conditions. Compared with the existing technology, the sealing and safety of the power distribution system are further improved through pressurization and temperature and humidity adjustment. While ensuring insulation, it has a certain fire protection capability, providing a more stable operating environment for the internal components of the power distribution system.

[0076] The intelligent power distribution controller 19 collects the current, voltage and temperature data of each connection terminal 7, calculates the optimal load distribution ratio through the fuzzy PID control algorithm embedded in the intelligent power distribution controller 19, and dynamically adjusts the power supply power of each branch. The intelligent power distribution controller 19 predicts the peak load based on the historical power consumption data and the load prediction model. The intelligent power distribution controller 19 collects the differential capacitance signal and current harmonic analysis of the leakage sensor 21, locates the leakage or short-circuit fault branch, and drives the dynamic gate seat 16 and the fixed gate seat 17 through the linear actuator 20 to physically isolate the fault line, and at the same time triggers the sound and light alarm 23 and the remote Internet of Things alarm.

[0077] The fuzzy PID algorithm dynamically adjusts the proportional, integral, and differential coefficients based on the real-time load deviation.

[0078] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution assembly for cable installation, comprising a power distribution cabinet (46) and a plurality of power distribution systems installed in the power distribution cabinet (46), characterized in that: The power distribution system comprises a power distribution shell (1), wherein a power input chamber (2), a power distribution chamber (3) and a water cooling chamber (4) which are isolated from each other are provided in the power distribution shell (1); A shielding cover (9) is installed on the power distribution shell (1), an electrically rotatable insulating belt a (11) is provided on the power distribution shell (1), and an inspection port (12) adapted to the shielding cover (9) is provided on the insulating belt a (11); A terminal block (5) is provided below the power distribution housing (1), and a group of regularly distributed connection terminals (7) are installed on the terminal block (5). A threading tube (8) is provided at the bottom end of each connection terminal (7), and the threading tube (8) is inflated and sealed by a pneumatic sealing assembly. An intelligent power distribution controller (19) and an insulation display assembly are respectively installed in the power distribution room (3); The insulating display assembly includes an electrically controllably rotatable insulating belt b (26), on which a transparent display area (27) cooperating with a display screen is fixedly provided. When leakage occurs, the insulating belt a (11) and the insulating belt b (26) automatically change color and expand to provide leakage and electromagnetic shielding. The water-cooling chamber (4) is filled with water-cooling liquid and is equipped with a reciprocating drive system and a set of heat dissipation modules; Each heat dissipation module includes a spiral heat exchange coil (31), and the air flow in the power distribution room (3) circulates in the spiral heat exchange coil (31). A heat dissipation shaft (32) is provided in the spiral heat exchange coil (31). A group of elastic spoiler strips (33) are installed on the heat dissipation shaft (32) and at a position on the inner side of one spiral heat exchange coil (31). The heat dissipation shaft (32) and the air distribution vortex ring (30) are driven by a reciprocating drive system and cyclically rotate forward and reverse, and the rotation directions of the two are opposite. A pressurized isolation system is provided in the power entry chamber (2), and the pressurized isolation system normally introduces positive-pressure sulfur hexafluoride insulating gas into the power entry chamber (2); The insulating protective tape a (11) and the insulating protective tape b (26) both comprise an electrochromic warning layer (1101), a transparent flexible substrate layer (1102), a reversible expansion layer (1103) and an electromagnetic shielding layer (1104) arranged in sequence from the inside to the outside, wherein the transparent flexible substrate layer (1102) is a silicone rubber material, the electrochromic warning layer (1101) is a polyaniline film doped with nano-titanium dioxide, the electrochromic warning layer (1101) triggers color change when the electric field intensity exceeds a threshold value, the reversible expansion layer (1103) is composed of a transparent shape memory elastomer substrate and closed-cell silicone rubber microspheres, and the reversible expansion layer (1103) integrates PTC heating and semiconductor cooling elements.

2. A power distribution assembly for cable installation according to claim 1, characterized in that: Two first motors (44) and two second motors (45) are respectively installed on the distribution shell (1); two lower rollers (10) and two upper rollers (24) are rotatably installed on the distribution shell (1); the two ends of the insulating protective tape a (11) are respectively fixedly installed on the two lower rollers (10); the two ends of the insulating protective tape b (26) are respectively fixedly installed on the two upper rollers (24); the output shaft ends of the two first motors (44) are respectively fixedly connected to the two lower rollers (10); the output shaft ends of the two second motors (45) are respectively fixedly connected to the two upper rollers (24); the distribution shell (1) is also rotatably installed with two guide rollers (25); the two guide rollers (25) are both in contact with the insulating protective tape b (26).

3. A power distribution assembly for cable installation according to claim 1, characterized in that: The reversible expansion layer (1103) triggers a volume expansion of 300% to 400% at 65°C to 75°C when leaking electricity, and returns to its original state after cooling to 40°C when there is no leakage. The light transmittance of the transparent flexible substrate layer (1102) and the reversible expansion layer (1103) is 85%. The electromagnetic shielding layer (1104) is composed of a single-layer graphene film and a transparent ion gel layer. The light transmittance of the electromagnetic shielding layer (1104) is 97%.

4. A power distribution assembly for cable installation according to claim 1, characterized in that: The heat dissipation module further comprises two air guide rings (28), each of the two air guide rings (28) is connected to a ventilation joint (29), the other ends of the two ventilation joints (29) are connected to the inner cavity of the power distribution room (3), a fan is installed in each of the two ventilation joints (29), the inner walls of the two air guide rings (28) are rotatably connected to a wind distribution ring (30), the inner cavity of the wind distribution ring (30) is connected to the inner cavity of the air guide ring (28), a spiral heat exchange coil (31) is fixedly connected between the two wind distribution rings (30), a heat dissipation shaft (32) is rotatably installed between the two wind distribution rings (30), the heat dissipation shafts (32) on the multiple heat dissipation modules are linked by a first belt, and the wind distribution rings (30) on the multiple heat dissipation modules are linked by a second belt.

5. A power distribution assembly for cable installation according to claim 4, characterized in that: The reciprocating drive system includes a motor (34) installed in a distribution shell (1), a half-tooth gear (35) is installed on the output shaft end of the motor (34), a reciprocating shaft (36) is rotatably installed on the distribution shell (1), a driven gear (37) is installed on the top of the reciprocating shaft (36), the half-tooth gear (35) is transmission-connected to the driven gear (37), the radius of the half-tooth gear (35) is the same as the radius of the driven gear (37), an energy storage torsion spring (38) is fixedly provided at the rotation connection between the reciprocating shaft (36) and the distribution shell (1), an intermediate bevel gear is installed on the bottom end of the reciprocating shaft (36), one side bevel gear is installed on each of the air distribution ring (30) and the heat dissipation shaft (32), the two side bevel gears are transmission-connected to the intermediate bevel gear, and the intermediate bevel gear is arranged between the two side bevel gears.

6. A power distribution assembly for cable installation according to claim 1, characterized in that: The intelligent power distribution controller (19) is integrated with a battery (22). A display screen is fixedly provided on the intelligent power distribution controller (19), and the display screen is provided on the inner side of the insulating belt b (26). A handle is fixedly provided on the bottom surface of the terminal block (5). A group of elastic limiters (6) are installed between the terminal block (5) and the power distribution shell (1). Two electromagnets (43) are symmetrically arranged and magnetically matched with the power distribution shell (1) and are installed on the terminal block (5). The electromagnets (43) are powered by the battery (22).

7. The power distribution assembly for cable installation according to claim 1, characterized in that: The pneumatic sealing assembly includes an air pump (13) installed in the power input chamber (2), a sealing ring capsule (14) is installed on the inner wall of each threading tube (8), the port of the air pump (13) is connected to a multi-way hose (15), the inner cavity of each sealing ring capsule (14) is connected to the multi-way hose (15), an air pressure probe (40) is installed on the multi-way hose (15), the data end of the air pressure probe (40) is connected to the intelligent power distribution controller (19), a fiber optic Bragg grating sensor is embedded in the inner wall of the sealing ring capsule (14), which monitors the cable displacement in real time and feeds back to the intelligent power distribution controller (19), triggering the electromagnet (43) of the terminal board (5) to perform position compensation, and a cable branch connected to the corresponding connection terminal (7) is provided in each threading tube (8).

8. The power distribution assembly for cable installation according to claim 1, characterized in that: The device also includes a leakage detection and circuit breaker module, which includes a dynamic gate seat (16) movably installed in the power input chamber (2) and a fixed gate seat (17) fixedly installed in the power input chamber (2). A conductive gate block (18) is provided on the fixed gate seat (17) at a position corresponding to each connection terminal (7). Each connection terminal (7) is electrically connected to a conductive gate block (18) at a corresponding position through a first soft wire. A guide groove for sliding connection with the conductive gate block (18) is provided inside the dynamic gate seat (16) and at a position corresponding to each conductive gate block (18). Each of the guide grooves is provided with a conductive portion adapted to the conductive gate block (18), and each of the conductive portions is electrically connected to the intelligent power distribution controller (19) via a second soft wire. A linear actuator (20) and a leakage sensor (21) are respectively installed inside the power inlet chamber (2). The linear actuator (20) is transmission-connected to the dynamic gate seat (16), and the data end of the leakage sensor (21) is data-connected to the intelligent power distribution controller (19). An audible and visual alarm (23) data-connected to the intelligent power distribution controller (19) is installed on the top of the power distribution shell (1).

9. The power distribution assembly for cable installation according to claim 1, characterized in that: The pressurized isolation system includes a temperature and humidity sensor (39) and an air pressure probe (40) installed in the power input chamber (2); an air pump (13) and an electric heating plate (41) are installed in the power input chamber (2); an air intake port of the air pump (13) is connected to the power input chamber (2); an air outlet port of the air pump (13) is connected to the outside; a gas storage tank (42) is installed in the power input chamber (2); an air inlet valve connected to the power input chamber (2) is installed on the gas storage tank (42); sulfur hexafluoride gas is stored in the gas storage tank (42); and the sulfur hexafluoride gas is doped with 1% to 3% by volume of perfluorohexanone.

10. The power distribution assembly for cable installation according to claim 1, characterized in that: The intelligent power distribution controller (19) collects the current, voltage and temperature data of each connection terminal (7), calculates the optimal load distribution ratio through the fuzzy PID control algorithm embedded in the intelligent power distribution controller (19), and dynamically adjusts the power supply of each branch. The intelligent power distribution controller (19) predicts the peak load based on the historical power consumption data and the load prediction model. The intelligent power distribution controller (19) collects the differential capacitance signal and current harmonic analysis of the leakage sensor (21), locates the leakage or short circuit fault branch, and drives the dynamic gate seat (16) and the fixed gate seat (17) through the linear actuator (20) to physically isolate the fault line, and simultaneously triggers the sound and light alarm (23) and the remote Internet of Things alarm.

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