Outdoor cable branch box and protection method

Abstract

The invention belongs to the technical field of cable branch boxes, and particularly relates to an outdoor cable branch box and a protection method. Comprising a box body, a box cover is movably connected to the top of the box body, a mounting part is arranged in the box body, a plurality of detection units are uniformly arranged on one side of the mounting part, and the device further comprises a regulation and control part which is movably connected to the interior of the box body and used for regulating the ventilation efficiency and the heating temperature of the box body; the circulation part is movably connected to the upper portion of the regulation and control part and used for circulating gas, and a reversing part is movably connected to the interior of the circulation part and used for adjusting the flowing direction of the gas in the circulation part; the device meets the cooling or dehumidification requirement, is high in adaptability, high in regulation and control performance, simple and efficient to operate and high in safety and regulation and control performance, achieves self-cleaning by means of vertical vibration of the box cover, prevents waste from being accumulated for a long time to affect the strength of the device, further achieves flowing scouring on the adsorption layer through reverse flowing of gas, and guarantees the subsequent drying and dehumidification effect.

Description

Technical Field

[0001] This invention belongs to the field of cable branch box technology, specifically an outdoor cable branch box and its protection method. Background Technology

[0002] Outdoor cable distribution boxes are key node equipment in power distribution network systems. They are mainly used for the access, branching, conversion and connection of power cables to realize the distribution and dispatch of electrical energy. They are usually installed in outdoor environments, such as both sides of streets, residential areas, industrial parks and field lines, as a connection hub between overhead lines and underground cables, or as a distribution unit for multiple cable outgoing lines.

[0003] Publication number CN114430158A relates to a cable branch box, and more particularly to an outdoor cable branch box. This invention provides an outdoor cable branch box with rain protection. An outdoor cable branch box includes a frame, slide rails, a sliding plate, an electrical module, a first spring, a ramp, a shielding mechanism, and a baffle mechanism.

[0004] The publication number CN115189305A discloses an outdoor cable branch box, which belongs to the field of cable branch boxes. It includes a cable branch box body, a door hinged at the opening of the cable branch box body, a vertical slot arranged longitudinally through the door, and a drying mechanism for drying the moisture inside the cable branch box body at the position corresponding to the vertical slot on the door.

[0005] In actual use, the aforementioned outdoor cable distribution boxes have low insulation and shielding capabilities, low cooling and dehumidification efficiency, poor isolation and separation effects from the outdoor ground, and poor cable distribution.

[0006] When the temperature or humidity inside the enclosure changes, it is impossible to achieve precise cooling and dehumidification of the various electrical structures inside the enclosure. Furthermore, as the temperature or humidity increases further, the flow of gas alone cannot achieve the required cooling and dehumidification function, thereby reducing the normal operating efficiency of the various electrical structures inside the enclosure.

[0007] Meanwhile, after prolonged use, some waste tends to accumulate on the top of the lid. This waste not only increases the downward pressure on the lid but also corrodes it and reduces its sunshade and rain protection effect. Furthermore, when the temperature or humidity changes, the lid cannot adaptively adjust its sunshade or dehumidification effect on the box, resulting in repeated impacts of the external environment on the internal temperature or humidity of the box.

[0008] When gas flows inside the chamber and is cooled and dehumidified, impurities or water vapor in the gas can easily damage various electrical structures if they enter the chamber. After filtering and dehumidifying the gas with filter plates and dehumidifying layers, problems such as deactivation and blockage can occur. In addition, some impurities or water vapor will stick to the inner wall of the chamber, thereby reducing the subsequent adsorption of water vapor and the filtration effect of impurities.

[0009] When the internal temperature or humidity of the enclosure exceeds the maximum value, existing technologies lack a quick-response stop function and all require on-site personnel to disconnect the circuit. When using a circuit breaker to disconnect the circuit, it can only be done based on the internal temperature of the enclosure, which can easily cause damage to the internal electrical structures. Summary of the Invention

[0010] To address the above problems, this invention provides an outdoor cable branch box and a protection method thereon.

[0011] To achieve the above objectives, the present invention provides the following technical solution: an outdoor cable branch box, comprising a box body, a box cover movably connected to the top of the box body, an installation part provided inside the box body, and a plurality of detection units evenly arranged on one side of the installation part, and further comprising: The control unit, which is connected to the inside of the cabinet, is used to adjust the ventilation efficiency and heating temperature of the cabinet; The circulation section, which is movably connected above the control section, is used for gas circulation. Inside the circulation section, there is a reversing section to adjust the direction of gas flow. When the detection unit detects an increase in the internal temperature of the chamber, the control section moves downward, and the outside gas flows into the chamber in one direction along the reversing section and is discharged downward. When the detection unit detects an increase in the internal humidity of the chamber, the control section moves upward and the temperature rises. The outside gas is dried at high temperature and then flows into the chamber and is discharged upward in one direction along the reversing section.

[0012] This application adaptively adjusts the height of the moving frame based on the temperature and humidity values ​​detected by the detection unit inside the chamber, thereby meeting the heat dissipation efficiency inside the chamber. Furthermore, it changes the direction of gas flow inside the chamber according to the heating temperature of the heater to meet cooling or dehumidification needs. It is highly adaptable, highly controllable, simple and efficient to operate, and highly safe and controllable. In addition, it achieves self-cleaning by vibrating the chamber lid up and down, avoiding the long-term accumulation of waste that affects its own strength. The reverse flow of gas further achieves the flow and scouring of the adsorption layer, ensuring the subsequent drying and dehumidification effect.

[0013] Preferably, a door is provided on one side of the box, a bottom is provided at the bottom of the box, and a sunshade is provided on the lower side of the box cover. Multiple vertical holes are evenly opened inside the sunshade. The detection unit includes a temperature sensor and a humidity sensor for detecting the temperature and humidity values ​​inside the box.

[0014] Preferably, the mounting part includes: The assembly frame is fixedly connected to the inner wall of the box. Multiple crossbeams are evenly arranged between the two assembly frames. A busbar compartment is set on one side of the upper crossbeam, and a circuit unit is set on one side of the lower crossbeam. A branch cable is connected between the busbar compartment and the circuit unit. The organic protective plate is fixedly installed inside the enclosure and located between the mother chamber and the circuit unit. It is a transparent insulating partition used to isolate and insulate high voltage electricity. Insulators are symmetrically arranged on both sides of the organic protective plate, and the side walls of the insulators are fixedly connected to the side walls of the mounting frame.

[0015] Preferably, the control unit includes: Ventilation holes are evenly distributed on both sides of the box. An adsorption layer is installed inside the ventilation holes to adsorb water vapor in the gas. A baffle is installed on the outer wall of each ventilation hole. The movable frame is movably connected to the inner wall of the box. Multiple overlapping holes are evenly opened inside the movable frame, and the overlapping holes correspond to the ventilation holes. The bottom of the movable frame is equipped with a telescopic component through a fixed layer. The bottom of the telescopic component is fixedly connected to the bottom of the box and is used to adjust the height of the movable frame. A circuit breaker is installed on one side of the inner wall of the box. The heat-conducting component has its bottom fixedly connected to the top of the movable frame via a heater, and is used to conduct the temperature value at the heater upwards.

[0016] Preferably, the distribution department includes: Support components, which are fixedly connected to the inner wall of the box; The follower is fixedly connected to the bottom of the box cover, and the top of the heat-conducting component passes through the support and is hinged to the bottom of the follower. An elastic cover is provided between the support and the follower to seal the cavity between the support and the follower and to allow elastic deformation. One-way air inlet and one-way air outlet are symmetrically provided inside the support and the follower.

[0017] Preferably, the commutation section includes: The movable component is symmetrically and movably connected to the opposite side of the support component and the follower component, and each movable component has a docking hole inside, which corresponds to the one-way air inlet and the one-way air outlet respectively. The deformable component is fixedly connected to the side wall of the movable component on one side, and fixedly connected to the opposite side of the support or follower component through the positioning component on the other side. When the temperature of the heat-conducting component rises, the deformable component expands in volume and drives the movable component to move away from the positioning component.

[0018] A protection method for an outdoor cable distribution box, wherein the protection method utilizes the outdoor cable distribution box to achieve protection, comprising the following steps: S1. The installation section assembles various electrical structures. The enclosure is fixedly installed with the bottom of the enclosure and the pre-embedded base. The cable passes through the pre-embedded base along the main cable trench and cable well to reach the inside of the enclosure. S2. When the detection unit detects an increase in the temperature inside the chamber, the control unit increases the gas flow rate inside the chamber, and the cooling gas flows downward in one direction along the flow section and the reversing section and is discharged. S3. When the detection unit detects an increase in the humidity value inside the chamber, the control unit increases the temperature value inside the chamber, and the dry gas flows upward in one direction along the circulation section and the reversing section and is discharged. S4. When the detection unit detects that the internal temperature value of the chamber reaches the set maximum temperature preset value or the humidity value reaches the set maximum humidity preset value, the control unit moves upward to the maximum distance and disconnects the installation unit.

[0019] Preferably, S2 further includes: S201. When the temperature value detected by the temperature sensor in the detection unit increases and is greater than the set minimum temperature preset value but less than the set first temperature preset value, and the humidity value detected by the humidity sensor is less than the set minimum humidity value, the output end of the telescopic component shortens and drives the moving frame to move downward. The overlapping area of ​​the overlapping hole and the ventilation hole inside the moving frame increases, and the flow of external gas along the ventilation hole increases. S202. When the moving frame moves downward, the upper heat-conducting component and follower component drive the box cover to move downward. The box cover drives the sunshade to move downward and increases the sunshade and rainproof area. The docking hole coincides with and connects with the one-way air inlet hole. S203. When the temperature value detected by the temperature sensor in the detection unit rises and is greater than the first preset temperature value but less than the maximum preset temperature value, and the humidity value detected by the humidity sensor is less than the minimum preset humidity value, the output end of the telescopic component reciprocates and extends and drives the moving frame to move up and down. The moving frame drives the follower to move up and down through the heat-conducting component. The follower drives the elastic cover to deform elastically and causes the outside gas to enter the box body in one direction downward through the one-way air inlet and finally be discharged outward through the ventilation hole. S204. The follower moves up and down, causing the box cover to vibrate up and down, and the gas inside the box is discharged outward along the ventilation hole and washes the adsorption layer in the opposite direction.

[0020] Preferably, S3 further includes: S301. When the humidity value detected by the humidity sensor in the detection unit increases and is greater than the set minimum humidity preset value but less than the set first humidity preset value, and the temperature value detected by the temperature sensor is less than the set minimum temperature value, the heater starts and generates heat, the output end of the telescopic component extends and drives the moving frame to move upward, the overlapping area of ​​the overlapping hole and the ventilation hole inside the moving frame decreases, the distance between the heater and the mounting part decreases and the heating temperature increases. S302. When the moving frame moves upward, the heat-conducting component above drives the follower to move upward. The follower stretches the elastic cover and increases its volume. The heat-conducting component conducts heat upward. The deformable component expands due to heat and drives the moving component to move. The docking hole coincides with and connects with the one-way air outlet. Water vapor in the upper part of the box flows upward along the one-way air outlet to the inside of the elastic cover. S303. When the humidity value detected by the humidity sensor in the detection unit increases and is greater than the first preset humidity value but less than the maximum preset humidity value, and the temperature value detected by the temperature sensor is less than the minimum preset temperature value, the output end of the telescopic component reciprocates and extends and drives the moving frame to move up and down. The moving frame drives the follower to move up and down through the heat-conducting component. The follower drives the elastic cover to deform elastically and causes the water vapor in the upper part of the box to be discharged upward in one direction through the one-way air outlet. S304, the follower moves up and down, causing the cover to move up and down and vibrate. The outside gas is adsorbed and dehumidified by the adsorption layer of the ventilation hole and heated by the heater before entering the interior of the box and drying the mounting part at high temperature.

[0021] Preferably, the minimum preset temperature value is less than the first preset temperature value, and the first preset temperature value is less than the maximum preset temperature value; the minimum preset humidity value is less than the first preset humidity value, and the first preset humidity value is less than the maximum preset humidity value.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this application, by setting up insulators and organic protective plates and other components in cooperation, insulation protection is achieved for the various electrical structures inside the enclosure, so as to avoid the generation of electric arcs and other factors that affect the normal conductivity and safety during long-term use.

[0023] 2. In this application, by setting up the cooperation of components such as the moving frame and ventilation holes, when the temperature rises and exceeds the preset minimum temperature value, the moving frame moves downward, the overlapping area of ​​the overlapping hole and the ventilation hole increases, the flow of gas inside the box along the ventilation hole increases, further improving the ventilation and heat dissipation effect, and ensuring the continuous and stable operation of various electrical structures inside the box.

[0024] 3. In this application, by setting up a one-way air inlet and a follower component, when the temperature rises and exceeds the preset first temperature value, the moving frame moves up and down and drives the follower component to move up and down. The outside gas flows down in one direction along the one-way air inlet and is discharged, which effectively improves the cooling effect of the gas flow inside the box and can also achieve reverse flushing and clearing of the adsorption layer.

[0025] 4. In this application, by setting up the cooperation of components such as heaters and heat-conducting rods, when the humidity rises and exceeds the preset minimum humidity value, the moving frame moves upward, and the heating temperature of the heater on each electrical structure increases, effectively improving the dehumidification and drying effect inside the chamber.

[0026] 5. In this application, by setting up deformable parts and one-way air outlets and other components in cooperation, when the humidity rises and exceeds the preset first humidity value, the moving frame moves up and down repeatedly, and the water vapor inside the box flows upward along the one-way air outlet and is discharged, thereby improving the water vapor discharge efficiency.

[0027] 6. In this application, by setting up the mutual cooperation of components such as the adsorption layer and the box cover, and by moving the follower up and down, the box cover moves up and down and vibrates and cleans it, so as to avoid the accumulation of waste on it affecting its own strength. At the same time, the flow of gas can also achieve reverse flushing and clearing of the adsorption layer and filter plate, so as to avoid affecting its own filtration and dehumidification effect after long-term use. Attached Figure Description

[0028] Figure 1 This is a front view schematic diagram of the outdoor working structure of the present invention; Figure 2 This is a schematic diagram of the outdoor working left-side structure of the present invention; Figure 3 This is a top and front view schematic diagram of the outdoor working cable well structure of the present invention. Figure 4 This is a schematic diagram of the three-dimensional structure of the box of the present invention; Figure 5 This is a frontal three-dimensional structural diagram of the box body of the present invention; Figure 6 This is a three-dimensional structural diagram of the interior of the housing of the present invention, viewed from below. Figure 7 This is a frontal perspective three-dimensional structural diagram of the internal part of the box of the present invention; Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 for Figure 7 Enlarged view of point B in the middle; Figure 10 This is a left-side perspective three-dimensional structural diagram of the internal part of the housing of the present invention; Figure 11 This is a flowchart of the protection method of the present invention.

[0029] In the diagram: 1. Enclosure; 2. Enclosure cover; 3. Enclosure door; 4. Mounting section; 401. Assembly frame; 402. Crossbeam; 403. Busbar compartment; 404. Circuit unit; 405. Insulator; 406. Organic protective plate; 5. Control section; 501. Moving frame; 502. Heater; 503. Overlap hole; 504. Ventilation hole; 505. Adsorption layer; 506. Baffle; 507. Circuit breaker; 508. Expansion joint; 509. Fixed component. 510. Heat-conducting component; 6. Flow section; 601. Support component; 602. Follower component; 603. Elastic cover; 604. One-way air inlet; 605. One-way air outlet; 7. Reversing section; 701. Moving component; 702. Connecting hole; 703. Deformation component; 704. Positioning component; 8. Detection unit; 9. Embedded base; 10. Cable well; 11. Main cable trench; 12. Box bottom; 13. Sunshade; 14. Vertical hole. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1 like Figures 1-10 As shown, an outdoor cable distribution box includes a box body 1, with a cover 2 movably connected to the top of the box body 1. The cover 2 seals and covers the top of the box body 1, and sunshades 13 are provided on the lower sides of the cover 2. The sunshades 13 provide shade and rain protection for the box body 1 below, preventing damage to the internal structure of the box body 1 when the cable distribution box is used outdoors for a long time. At the same time, the cover 2 and the sunshades 13 are both inclined, which not only effectively improves the shading effect, but also allows rainwater and impurities falling on the top to flow downwards and fall off, preventing them from corroding the cover 2 for a long time and affecting its own structural strength. The sunshades 13 have multiple vertical holes 14 evenly distributed inside for the circulation of external air. The vertical holes 14 are equipped with filters, which not only improves the ventilation and heat dissipation effect inside the box body 1, but also allows water vapor inside the box body 1 to be discharged, improving the stability of the operation inside the box body 1.

[0032] A door 3 is provided on one side of the enclosure 1, and various tags are provided on the other side of the door 3 for easy note-taking and reminders. A latch is installed between the door 3 and the enclosure 1 to improve the sealing and protection of the interior of the enclosure 1. A bottom 12 is provided at the bottom of the enclosure 1, which isolates the enclosure 1 from the outdoor ground, preventing moisture from the ground from entering the enclosure 1 and causing damage. The bottom 12 also has multiple connecting holes, each labeled, for easy cable routing and electrical connection. The bottom of the box 12 is provided with a pre-embedded base 9, which is fixedly connected to the outdoor ground. The pre-embedded base 9 improves the stability and support of the box bottom 12 and the box body 1. A cable well 10 is drilled through the bottom of the pre-embedded base 9. The corresponding cable is placed inside the cable well 10. A main cable trench 11 is connected to one side of the cable well 10. The main cable inside the main cable trench 11 passes through the cable well 10, the pre-embedded base 9 and the box bottom 12 and is electrically connected to the various electrical structures inside the box body 1, thereby facilitating the subsequent assembly and electrical connection of the outdoor cable branch box.

[0033] The enclosure 1 is equipped with an installation section 4 for installing and fixing various electrical devices inside the enclosure 1. The installation section 4 includes an assembly frame 401, which is fixedly connected to the inner wall of the enclosure 1. The assembly frame 401 adopts a U-shaped structure. Two assembly frames 401 are symmetrically arranged on the inner wall of the enclosure 1 and have multiple matching holes evenly opened inside. The matching holes facilitate the subsequent assembly of various structures at the assembly frame 401. Multiple crossbeams 402 are evenly arranged between the two assembly frames 401. The crossbeams 402 mainly serve as fixed supports. A busbar compartment 403 is arranged on one side of the upper crossbeam 402, and a circuit unit 404 is arranged on one side of the lower crossbeam 402. A branch cable is connected between the busbar compartment 403 and the circuit unit 404. The current in the busbar compartment 403 enters the interior of each circuit unit 404 through the branch cable, thereby achieving the required cable branching effect.

[0034] Organic protective plate 406 is fixedly installed inside the enclosure 1 and located between the busbar compartment 403 and the circuit unit 404. It is a transparent insulating partition used to isolate and insulate high-voltage electricity. After opening the enclosure door 3, the usage status of the busbar compartment 403 and the circuit unit 404 behind can be accurately obtained through the organic protective plate 406, and the cables between them can be insulated to prevent the generated arc from causing damage to the operators. Insulators 405 are symmetrically arranged on both sides of the organic protective plate 406. The side wall of the insulator 405 is fixedly connected to the side wall of the mounting frame 401. The insulator 405 serves to fix the organic protective plate 406, and its own insulation further improves the insulation effect.

[0035] Multiple detection units 8 are evenly arranged on one side of the mounting section 4. Each detection unit 8 includes a temperature sensor and a humidity sensor, which are used to detect the temperature and humidity values ​​inside the enclosure 1. The detection unit 8 also has a control and processing module, which is used to acquire, analyze, generate and send the temperature and humidity values ​​inside the enclosure 1 detected by the temperature sensor and humidity sensor, thereby further improving the subsequent controllability of the temperature and humidity inside the enclosure 1.

[0036] The control unit 5, movably connected inside the enclosure 1, is used to regulate the ventilation efficiency and heating temperature of the enclosure 1, thereby improving the stability of the internal temperature and humidity of the enclosure 1. The control unit 5 includes: ventilation holes 504, evenly distributed on both sides of the enclosure 1, for external gas circulation. In environments where sealing requirements are not particularly stringent, the ventilation holes 504 facilitate temperature and humidity exchange between the interior of the enclosure 1 and the external environment, preventing the electrical components inside the enclosure 1 from being subjected to prolonged high temperature or high humidity conditions, which could degrade their normal operation. An adsorption layer 505 is provided inside the ventilation holes 504 for... The adsorption layer 505 can be an adsorption desiccant that adsorbs water vapor in the gas. It corresponds to the inner diameter of the ventilation hole 504 to facilitate the drying of the gas entering and exiting the chamber 1 along the ventilation hole 504. Similarly, in actual use, the adsorption layer 505 can be set inside the vertical hole 14 as needed to improve the adsorption and drying effect of the gas entering the chamber 1. The outer wall of the ventilation hole 504 is provided with a baffle 506, and the baffle 506 is provided with a filter screen, which can filter the gas entering and exiting the chamber 1 along the ventilation hole 504 to improve the cleanliness and flow of the gas.

[0037] In use, cable wells 10 and main cable trenches 11 are excavated and constructed outdoors, and pre-embedded bases 9 are installed above cable wells 10. The box 1 is fixedly connected to the pre-embedded bases 9 through the bottom box 12, thereby isolating the internal components of the box 1 from the outdoor ground and preventing humid air from flowing upward and affecting its normal operation. Then, an assembly frame 401 is installed inside the box 1, and each crossbeam 402 is installed at the corresponding position of the assembly frame 401. A busbar compartment 403 and a circuit unit 404 are installed on one side of the crossbeam 402, and the busbar compartment 403 and the circuit unit 404 are connected by a cable. Then, an organic protective plate 406 is fixed on one side of the assembly frame 401 through an insulator 405, thereby achieving the insulation and shielding effect for the busbar compartment 403, the circuit unit 404 and the cable.

[0038] Under normal operating conditions, the cover 2 of this outdoor cable distribution box provides shade and rain protection for the electrical structures inside the box 1. External debris falls onto the cover 2 and eventually slides down, effectively ensuring the normal operation of the internal electrical structures. Furthermore, air flows between the inside of the box 1 and the outside through the ventilation holes 504, facilitating the expulsion of high temperatures and moisture from the box 1. Simultaneously, the adsorption layer 505 inside the ventilation holes 504 and the filter screen inside the baffle 506 dehumidify and filter the air, preventing it from affecting the normal operation of the electrical structures inside the box 1. The temperature and humidity sensors inside the detection unit 8 detect the temperature and humidity values ​​inside the box 1. When the detected temperature or humidity value exceeds the maximum value, the box 1 issues an alarm, requiring the operator to remotely stop the operation of each electrical structure in a timely manner to prevent a major safety accident.

[0039] Example 2 In actual use, when the temperature or humidity inside the aforementioned outdoor cable distribution box changes, the ventilation hole 504, with its fixed inner diameter, cannot achieve adaptive and precise cooling and dehumidification. Furthermore, as the temperature or humidity increases further, the air flowing through the ventilation hole 504 alone cannot achieve the required cooling and dehumidification, thus reducing the normal operating efficiency of the various electrical structures inside the box. Simultaneously, after prolonged use, waste easily accumulates on the top of the cover 2. This waste not only increases the downward pressure on the cover 2 but also corrodes it and reduces its sunshade and rainproof effect. Moreover, when the temperature or humidity changes... When changes occur, the shading or dehumidification effect of the cover 2 on the box 1 cannot be adaptively adjusted, resulting in repeated influence of the external environment on the internal temperature or humidity of the box 1. During the above process, the adsorption layer 505 inside the ventilation hole 504 and the filter plate inside the baffle 506 will experience deactivation and blockage after long-term use, and some impurities or water vapor will adhere to the inner wall of the box 1, thereby reducing the subsequent adsorption of water vapor and filtration of impurities. When the internal temperature or humidity of the box 1 exceeds the maximum value, the above solutions lack a quick response and stop function, which can easily cause safety problems in the internal electrical structures.

[0040] To address the aforementioned issues, the outdoor cable distribution box further includes a circulation section 6, which is movably connected above the control section 5 for gas circulation. Thus, the circulation section 6 facilitates the discharge of gas from inside the box 1, and works in conjunction with the ventilation holes 504 to adjust the heat dissipation and dehumidification effects. A reversing section 7 is movably connected inside the circulation section 6 to adjust the gas flow direction. By changing the flow direction of the circulation section 6, an adaptive adjustment function is effectively achieved under different temperature or humidity conditions. This not only effectively avoids secondary impacts on the various electrical structures inside the box 1 but also enables a reverse flushing effect on the adsorption layer 505 and the filter plate.

[0041] When the detection unit 8 detects an increase in the internal temperature of the chamber 1, the control unit 5 moves downward, and the outside gas flows downward in one direction along the reversing part 7, thereby adjusting the ventilation volume along the ventilation hole 504 accordingly. When the detection unit 8 detects an increase in the internal humidity of the chamber 1, the control unit 5 moves upward and the temperature rises. The outside gas is dried at high temperature and then discharged upward in one direction along the reversing part 7, thereby achieving the effect of drying the inside of the chamber 1 and squeezing water vapor upward. Therefore, when the temperature of the control unit 5 changes, the reversing direction of the reversing part 7 changes accordingly, and the gas flow direction inside the chamber 1 changes, further achieving an adaptive flow discharge effect under different temperature or humidity conditions.

[0042] The movable frame 501 is movably connected to the inner wall of the box 1. Multiple overlapping holes 503 are evenly opened inside the movable frame 501. The overlapping holes 503 correspond to the ventilation holes 504. When the movable frame 501 moves up and down, it drives the overlapping holes 503 to move up and down accordingly. The overlapping area of ​​the overlapping holes 503 and the ventilation holes 504 changes accordingly. As a result, the amount of gas entering the box 1 along the overlapping position of the ventilation holes 504 and the overlapping holes 503 changes accordingly, thereby realizing the adaptive adjustment function of humidity and temperature inside the box 1.

[0043] The bottom of the movable frame 501 is provided with a telescopic component 508 through a fixed layer 509. The bottom of the telescopic component 508 is fixedly connected to the bottom of the box 1 and is used to adjust the height of the movable frame 501. When the telescopic component 508 is activated, it drives the movable frame 501 to move up and down the height inside the box 1. A circuit breaker 507 is provided on one side of the inner wall of the box 1. The circuit breaker 507 is used to directly cut off the connection of each electrical structure inside. Therefore, in actual use, the temperature and humidity inside the box 1 can be used to make a comprehensive judgment and cut off the circuit breaker 507, avoiding the problem that the existing circuit breaker 507 only detects that the temperature inside the box 1 is too high and cuts off the circuit, thus improving the detection adaptability and accuracy.

[0044] The heat-conducting component 510 is fixedly connected at its bottom to the top of the moving frame 501 via the heater 502. It is used to conduct the temperature value at the heater 502 upward. The outer surface of the heat-conducting component 510 is provided with a heat insulation sleeve, which effectively blocks the heat of the heat-conducting component 510, so that the heat generated by the heater 502 can only be transferred upward to the interior of the elastic cover 603. At the same time, the outer surface of the heat-conducting component 510 can be provided with multiple scrapers as needed, and the gap between the scrapers corresponds to the vertical movement of the moving frame 501. When the moving frame 501 moves up and down, the heat-conducting component 510 drives the multiple scrapers to move up and down simultaneously. The scrapers scrape the inner wall of the box 1, preventing some water vapor or impurities from sticking to the inner wall of the box 1 and reducing the subsequent cooling and dehumidification effect.

[0045] The circulation section 6 includes: a support member 601, which is fixedly connected to the inner wall of the box 1. The position of the support member 601 remains unchanged, and the heat-conducting member 510 passes through the support member 601 in a sealed manner. That is, the support member 601 has multiple internal holes evenly distributed inside, and a sealing ring is provided inside the internal hole. The heat-conducting member 510 is movably connected inside the sealing ring and correspondingly improves the sealing and blocking effect. A follower member 602, which is fixedly connected to the bottom of the box cover 2. The up and down movement of the follower member 602 corresponds to the upward movement of the box cover 2 on the box 1. When the box cover 2 moves down to the bottom, it makes a sealed contact with the top of the box 1. The top of the heat-conducting member 510 passes through the support member 601 and is hinged to the bottom of the follower member 602. When the heat-conducting member 510 moves up and down, it synchronously drives the box cover 2 to move up and down through the follower member 602. The box cover 2 moves up and down along the top of the box 1 and realizes the vibration and tilting of impurities accumulated on it, so as to prevent impurities from sticking to the top of the box cover 2 for a long time and causing corrosion and pollution, which would affect the subsequent sunshade and rain protection effect.

[0046] An elastic cover 603 is provided between the support member 601 and the follower member 602 to seal the cavity between the support member 601 and the follower member 602 and to elastically deform. The elastic cover 603 forms an elastic sealing area between the support member 601 and the follower member 602, and the heat-conducting component 510 is located inside the elastic cover 603. When the follower member 602 moves up and down above the support member 601, it causes the elastic cover 603 to elastically deform, thus changing the air pressure inside the elastic cover 603 and realizing the suction function. One-way air inlet 604 and one-way air outlet 605 are symmetrically provided inside the support member 601 and the follower member 602. The one-way air inlet 604 allows air to enter downwards in one direction, and the one-way air outlet 605 allows air to exit upwards in one direction, thereby adjusting the gas flow direction and flow rate according to the different temperatures or humidity inside the box 1.

[0047] The movable component 701 is symmetrically and movably connected to the opposite side of the support component 601 and the follower component 602. The movable component 701 can move along the side wall of the support component 601 and the follower component 602. Each movable component 701 has a docking hole 702 inside. The docking hole 702 corresponds to the one-way air inlet 604 and the one-way air outlet 605, respectively. When the movable component 701 moves, it drives the docking hole 702 to move accordingly. The docking hole 702 overlaps with the one-way air inlet 604 or the one-way air outlet 605 and the overlapping area is adjusted to further adjust the one-way flow direction and flow rate of the gas.

[0048] The deformable component 703 is fixedly connected to the side wall of the movable component 701 on one side, and fixedly connected to the opposite side of the support component 601 or the follower component 602 via the positioning component 704 on the other side. The deformable component 703 has the principle of thermal expansion and contraction, and the deformation of the deformable component 703 matches the upward heat conduction of the heat conduction component 510. When the temperature of the heat conduction component 510 rises, the deformable component 703 expands in volume and drives the movable component 701 to move away from the positioning component 704. The movable component 701 correspondingly drives the docking hole 702 to move. The overlapping position and overlapping area of ​​the docking hole 702 with the one-way air inlet 604 and the one-way air outlet 605 change, thereby adjusting the flow direction and flow rate of the gas.

[0049] Multiple sealing baffles are provided on the upper part of the periphery of the housing 1. Multiple misaligned holes are opened inside the sealing baffles, which are misaligned with the vertical holes 14 inside the sunshade 13. When the sunshade 13 is not in contact with the sealing baffles, the vertical holes 14 and the misaligned holes are misaligned, and gas can flow inside the vertical holes 14. When the sunshade 13 is in sealed contact with the sealing baffles, the vertical holes 14 and the misaligned holes are blocked, and gas no longer flows inside the vertical holes 14. This further achieves complete sealing and blockage of the interior of the housing 1, and avoids external gas from hindering its operation when the various electrical structures stop working.

[0050] In use, after installing each component according to the first embodiment, the temperature value detected by the temperature sensor inside the detection unit 8 is less than the set minimum temperature preset value, the humidity value detected by the humidity sensor is less than the set minimum humidity preset value, the minimum temperature preset value is less than the first temperature preset value, and the minimum humidity preset value is less than the first humidity preset value. Then, the output end of the telescopic component 508 drives the moving frame 501 to the initial height value through the fixed layer 509. The overlapping hole 503 and the ventilation hole 504 partially overlap. The external gas flows and exchanges heat with the inside of the box 1 along the overlapping part. At the same time, the filter plate inside the baffle 506 filters the gas, and the adsorption layer 505 inside the ventilation hole 504 adsorbs and dehumidifies the gas, thereby improving the heat dissipation and dehumidification effect.

[0051] When the outdoor cable branch box is in a dry and high-temperature environment, the temperature value detected by the temperature sensor inside the detection unit 8 rises and is greater than the set minimum temperature preset value but less than the set first temperature preset value. When the humidity value detected by the humidity sensor is less than the set minimum humidity value, it indicates that the amount of gas flowing inside the ventilation hole 504 cannot achieve the required cooling effect. Therefore, the high-temperature gas tends to accumulate in the upper part of the box 1. Since the various electrical structures inside the box 1 generate heat during normal operation, the temperature inside the box 1 is greater than the outside temperature. Then, the telescopic component 508 is activated and the output end is shortened. The output end of the telescopic component 508 drives the moving frame 501 to move downward through the fixed layer 509. The moving frame 501 drives multiple overlapping holes 503 to move downward. The overlapping area of ​​the overlapping holes 503 and the ventilation hole 504 increases, thus improving the heat exchange efficiency between the outside gas and the inside of the box 1 through the overlapping holes 503 and the ventilation hole 504. This further improves the heat dissipation and cooling effect inside the box 1 and prevents the various electrical structures from being in a high-temperature environment for a long time, which reduces their own working stability.

[0052] When the moving frame 501 moves downward, the heater 502 above the moving frame 501 drives the heat-conducting component 510 to move downward. The heat-conducting component 510 drives the follower 602 to move downward, and the follower 602 drives the box cover 2 to move downward. The box cover 2 drives the sunshade 13 to move downward. The distance between the box cover 2 and the box body 1 decreases, and the shading area of ​​the sunshade 13 on the box body 1 increases, thereby effectively reducing the impact of external sunlight on the internal temperature of the box body 1 and improving the internal cooling effect of the box body 1.

[0053] At this time, the heater 502 is not activated and its temperature is the internal temperature of the housing 1. Therefore, after heat conduction through the heat-conducting component 510, the temperature reaching the deformable component 703 is the internal temperature of the housing 1. The deformable component 703 expands and drives the movable component 701 to move away from the positioning component 704. The movable component 701 causes the docking hole 702 to coincide with the one-way air inlet 604, while the one-way air outlet 605 is blocked by the movable component 701. As the internal temperature of the housing 1 rises, the heat conduction through the heat-conducting component 510... This leads to an increase in temperature at the end of the deformable part 703, increasing the deformation of the deformable part 703 and causing the movable part 701 to move more. The movable part 701 causes the overlapping area of ​​the docking hole 702 and the one-way air inlet hole 604 to increase. As a result, the amount of external gas entering the housing 1 from the vertical hole 14 and the one-way air inlet hole 604 inside the sunshade 13 increases, and it is finally discharged along the overlapping position of the ventilation hole 504 and the overlapping hole 503, further achieving the flow and cooling of the gas inside the housing 1.

[0054] When the temperature value detected by the temperature sensor inside the detection unit 8 continues to rise and is greater than the first preset temperature value but less than the maximum preset temperature value, and the humidity value detected by the humidity sensor is less than the minimum preset humidity value, it indicates that the internal temperature of the cabinet 1 is constantly rising. Therefore, the flow of gas inside the ventilation hole 504 and the overlapping hole 503 alone cannot achieve cooling and heat dissipation inside the cabinet 1. At this time, the telescopic component 508 is activated and continuously drives the moving frame 501 to move up and down through the fixed layer 509. The moving frame 501 drives the heat-conducting component 510 to move up and down through the heater 502. The heat-conducting component 510 drives the upper follower component 602 to move up and down. The follower component 602 causes the elastic cover 603 to undergo elastic deformation and the internal pressure to change.

[0055] When the follower 602 moves upward, it causes the volume of the elastic cover 603 to increase and the pressure to decrease. At this time, the overlapping area of ​​the ventilation hole 504 and the overlapping hole 503 continuously decreases. External gas enters the interior of the elastic cover 603 downward along the vertical hole 14 and the one-way air inlet 604. Then, when the follower 602 moves downward, it causes the volume of the elastic cover 603 to decrease and the pressure to increase. The gas inside the elastic cover 603 enters the interior of the box 1 downward along the one-way air inlet 604. The overlapping area of ​​the overlapping hole 503 and the ventilation hole 504 continuously increases. The gas moves downward along the interior of the box 1 and carries the heat inside the box 1 to be discharged to both sides along the overlapping hole 503 and the ventilation hole 504. In addition, the downward pressure flow of the gas from top to bottom realizes the impact turbulence with the high-temperature gas inside the box 1, ensuring that the gas can flow to any corner inside the box 1, further realizing the compression flow and discharge of the heat inside the box 1, and improving the heat dissipation and cooling effect inside the box 1.

[0056] Meanwhile, when the high-temperature gas inside the chamber 1 is discharged to both sides through the overlapping hole 503 and the ventilation hole 504, the gas exerts a reverse scouring force on the adsorption layer 505 and the filter plate, further realizing reverse dehumidification of the adsorption layer 505 and reverse unclogging of the filter plate, avoiding blockage of the adsorption layer 505 and the filter plate after long-term use and affecting the flow effect of subsequent gas. During the up-and-down movement of the follower 602, the chamber cover 2 is moved up and down synchronously. Under its vibration, the impurities and other debris adhering to the top of the chamber cover 2 continuously slide and fall off along the top of the sunshade 13, avoiding long-term accumulation of impurities on the top of the chamber cover 2 and causing corrosion damage.

[0057] When the outdoor cable branch box is in a humid and low-temperature environment, the humidity value detected by the humidity sensor inside the detection unit 8 increases and is greater than the set minimum humidity preset value but less than the set first humidity preset value. When the temperature value detected by the temperature sensor is less than the set minimum temperature value, the heat generated by the operation of the various electrical structures inside the box 1 alone cannot fully dry and remove the water vapor inside the box 1, and the water vapor tends to accumulate on the top inside the box 1.

[0058] When the heater 502 is activated, it heats the inside of the housing 1. This heating environment facilitates the evaporation of residual water vapor inside the housing 1, preventing it from condensing and adhering to the outer surfaces of various electrical structures, thus affecting their normal operation. At the same time, the telescopic component 508 is activated and its output end extends. The output end of the telescopic component 508 drives the moving frame 501 to move upward through the fixed layer 509. The moving frame 501 drives multiple overlapping holes 503 to move upward. The overlapping area of ​​the overlapping holes 503 and the ventilation holes 504 is reduced, thus reducing the flow of external gas along the overlapping position of the overlapping holes 503 and the ventilation holes 504 into the housing 1. This effectively prevents the high-temperature gas generated when the heater 502 is working from flowing along the overlapping position of the overlapping holes 503 and the ventilation holes 504 on both sides and reducing the heating and dehumidification effect on the various electrical structures inside the housing 1.

[0059] Meanwhile, when heater 502 is working, the temperature around it continuously rises. When the output end of telescopic component 508 drives heater 502 to move upward through fixed layer 509 and moving frame 501, the distance between heater 502 and busbar chamber 403 and circuit unit 404 decreases. The heat generated by heater 502 during normal operation enhances the high-temperature dehumidification efficiency of busbar chamber 403 and circuit unit 404, effectively achieving adaptive dehumidification. In addition, heater 502 drives heat conduction component 510 to move upward, and heat conduction component 510 drives follower component 602 to move upward. Follower component 602 correspondingly drives elastic cover 603 to increase in volume and capacity. As a result, water vapor and other substances generated inside the box 1 under high temperature environment continuously accumulate upward above the box 1, facilitating subsequent upward discharge.

[0060] Meanwhile, the heat-conducting component 510 continuously transfers the heat to the deformable component 703. The volume of the deformable component 703 continuously increases, and through the movable component 701, the docking hole 702 passes over the one-way air inlet 604 and connects with the one-way air outlet 605. The greater the upward movement of the heater 502, the higher the temperature value transferred from the heater 502 to the deformable component 703 after passing through the heat-conducting component 510. Under the principle of thermal expansion and contraction, the deformation of the deformable component 703 is greater. The overlapping area between the docking hole 702 and the one-way air outlet 605 driven by the deformable component 703 through the movable component 701 is larger. The water vapor accumulated above the box 1 is continuously discharged upward along the one-way air outlet 605. In addition, with the increase in the volume of the elastic cover 603, the efficiency of water vapor collection and discharge is further improved, and the water vapor is prevented from continuing to condense and fall on the outer surface of the busbar chamber 403 and the circuit unit 404 when the temperature drops, causing secondary damage.

[0061] When the humidity value detected by the humidity sensor inside the detection unit 8 continues to rise and is greater than the first preset humidity value but less than the maximum preset humidity value, and the temperature value detected by the temperature sensor is less than the minimum preset temperature value, it indicates that the heating of the heater 502 alone cannot meet the dehumidification requirements inside the box 1. Some water vapor still adheres to the inside of the box 1 and affects its normal drying effect.

[0062] The telescopic component 508 is activated and drives the moving frame 501 to move up and down through the fixed layer 509. The moving frame 501 drives the heat-conducting component 510 to move up and down through the heater 502. The heat-conducting component 510 drives the follower 602 and the box cover 2 to move up and down. The up and down movement of the box cover 2 can vibrate and slide off the impurities accumulated on top for cleaning. The heat-conducting component 510 correspondingly drives multiple scrapers on the periphery to move up and down, further achieving the effect of scraping and cleaning water vapor and impurities adhering to the inner wall of the box 1, avoiding them from adhering to the inner wall of the box 1 for a long time and affecting the normal operation of various electrical structures.

[0063] When the moving frame 501 moves upward, it causes multiple overlapping holes 503 to move upward and reduce the overlapping area with the ventilation hole 504. At the same time, the moving frame 501 drives the follower 602 to move upward through the heater 502 and the heat conductor 510. The follower 602 causes the volume of the elastic cover 603 to increase and the pressure to decrease. Under the suction force applied by the elastic cover 603, the water vapor located in the upper part of the box 1 is drawn into the interior of the elastic cover 603 along the one-way air outlet 605.

[0064] Subsequently, as the moving frame 501 moves downward, it causes multiple overlapping holes 503 to move downward and increase their overlapping area with the ventilation holes 504. At this time, because the water vapor inside the housing 1 is drawn upward and discharged, the pressure inside the housing 1 decreases. External gas enters the housing 1 through the overlapping holes 503 and the ventilation holes 504. This gas is filtered and dehumidified by the filter plate and the adsorption layer 505, and under the heating action of the moving frame 501, it forms high-temperature dry gas and flows upward to the busbar chamber 403 and the circuit unit 404. The process further improves the drying and cleaning effect on the outer surface. When the moving frame 501 moves downward, it simultaneously drives the follower 602 to move downward through the heater 502 and the heat conductor 510. The follower 602 presses down on the elastic cover 603, and the water vapor inside the elastic cover 603 flows upward along the one-way air outlet 605 and is finally discharged along the vertical hole 14. This effectively achieves the efficient flow and discharge of water vapor inside the box 1, thus avoiding its long-term accumulation in the upper part of the box 1 and reducing the safety of use.

[0065] When the temperature value detected by the internal temperature sensor of the detection unit 8 continuously increases and exceeds the preset maximum temperature value, or the humidity value detected by the humidity sensor continuously increases and exceeds the preset maximum humidity value, it indicates that the heater 502 inside the box 1 is damaged or that a short circuit has occurred in any electrical structure. At this time, the required cooling and dehumidification effect cannot be achieved by simply moving the moving frame 501 up and down. Then, the telescopic component 508 is activated and its output end extends to the maximum distance. The output end of the telescopic component 508 drives the moving frame 501 to move upward to the maximum distance through the fixed layer 509. The moving frame 501 drives multiple overlapping holes 503 to move upward to the maximum distance and to be misaligned and blocked with multiple ventilation holes 504. External gas cannot enter the interior of the box 1 through the ventilation holes 504, effectively achieving the sealing and isolation effect of the outdoor cable branch box in the non-working state, and preventing external impurities from entering the interior of the box 1 and causing pollution.

[0066] Simultaneously, when the fixed layer 509 moves upward to its maximum distance, it comes into contact with the circuit breaker 507 and drives the circuit breaker 507 to close upward. All electrical structures inside the box 1 stop being powered, effectively realizing a rapid circuit breaker protection process and preventing it from working continuously in a high temperature and high humidity environment and causing major safety accidents. At the same time, when the moving frame 501 moves upward to its maximum distance, it drives the follower 602 to move upward to its maximum distance through the heater 502 and the heat conductor 510. The follower 602 drives the box cover 2 and the sunshade 13 to move upward to their maximum distance. The multiple vertical holes 14 inside the sunshade 13 are in sealing contact with the sealing baffles on the sides of the box 1. The vertical holes 14 are misaligned and blocked with the misaligned holes, and the outside gas cannot flow out along the vertical holes 14. The entire outdoor cable branch box is in a closed and stopped working state and an alarm is issued, waiting for the subsequent operators to arrive on site for replacement and maintenance.

[0067] Furthermore, in actual use, multiple detection units 8 can be set at different locations according to actual needs. These detection units 8 detect the temperature and humidity values ​​at specific locations. Simultaneously, the extension length of the output end of the telescopic component 508 at the corresponding location is adjusted according to the detected humidity and temperature values. Thus, the telescopic component 508 drives the moving frame 501 to move different distances through the fixed layer 509. At the same time, the moving frame 501 drives the follower 602 to move different distances through the heater 502 and the heat-conducting component 510. The flow rate of gas inside the box 1 varies at different locations, further achieving point-to-point efficient cooling and dehumidification inside the box 1. Moreover, the follower 602 causes the box cover 2 to tilt and swing above the box 1, effectively improving the effect of swinging, tilting, and sliding down the waste accumulated on the top of the box cover 2, and preventing the waste from accumulating and sticking to the top of the box cover 2 and causing pollution and corrosion.

[0068] After the operator has completed the maintenance of each electrical structure inside the enclosure 1, the telescopic component 508 moves in the reverse direction to restore its initial value, and then the above work can be repeated for each electrical structure.

[0069] Example 3 like Figure 11 As shown, a protection method for an outdoor cable branch box is described. The protection method utilizes the aforementioned outdoor cable branch box to achieve protection, and includes the following steps: S1. The installation section 4 assembles various electrical structures. The enclosure 1 is fixedly installed with the pre-embedded base 9 by means of the enclosure bottom 12. The cable passes through the pre-embedded base 9 along the main cable trench 11 and cable well 10 to reach the inside of the enclosure 1. The various electrical structures are installed in accordance with the above process. The cable transmits and works normally inside the enclosure 1, and the detection unit 8 detects the temperature and humidity values ​​inside the enclosure 1 in real time.

[0070] S2. When the detection unit 8 detects that the temperature inside the chamber 1 has increased, the control unit 5 increases the gas flow rate inside the chamber 1. The cooling gas flows downward in one direction along the flow section 6 and the reversing section 7 and is discharged. This situation mainly occurs when the outside environment is hot and dry, and the various electrical structures inside the chamber 1 are working normally and continuously, causing the temperature inside the chamber 1 to rise continuously. During this process, different cooling methods are used depending on the temperature, thereby achieving a highly efficient cooling effect.

[0071] Specifically, S2 also includes: S201. When the temperature value detected by the temperature sensor in the detection unit 8 increases and is greater than the preset minimum temperature value but less than the preset first temperature value, and the humidity value detected by the humidity sensor is less than the preset minimum humidity value, the output end of the telescopic component 508 shortens and drives the moving frame 501 to move downward. The overlapping area of ​​the overlapping hole 503 and the ventilation hole 504 inside the moving frame 501 increases, and the flow of external gas along the ventilation hole 504 increases. In this case, the cooling process can be achieved by the flow of gas through the ventilation hole 504 alone.

[0072] S202. When the moving frame 501 moves downward, the heat-conducting component 510 and the follower component 602 above drive the box cover 2 to move downward. The box cover 2 drives the sunshade 13 to move downward and increases the sunshade and rainproof area. The docking hole 702 coincides with and connects with the one-way air inlet 604. Therefore, in this process, not only is the gas flow increased, but the shading area of ​​the sunshade 13 on the box body 1 is also increased, so as to avoid the external sun radiation affecting the internal cooling effect of the box body 1.

[0073] S203. When the temperature value detected by the temperature sensor in the detection unit 8 rises and is greater than the first preset temperature value but less than the maximum preset temperature value, and the humidity value detected by the humidity sensor is less than the minimum preset humidity value, the output end of the telescopic component 508 reciprocates and extends, driving the moving frame 501 to move up and down. The moving frame 501 drives the follower 602 to move up and down through the heat-conducting component 510. The follower 602 drives the elastic cover 603 to deform elastically, causing the outside gas to enter the box 1 in one direction downward along the one-way air inlet 604 and finally be discharged outward along the ventilation hole 504. In this process, the heat dissipation by the gas flow inside the ventilation hole 504 alone cannot meet the requirements. Therefore, the one-way downward flow of gas is used to achieve uniform and thorough downward pressure and cooling of the inside of the box 1, thereby improving the cooling effect.

[0074] S204, the follower 602 moves up and down, causing the box cover 2 to vibrate up and down, and the gas inside the box 1 is discharged outward along the ventilation hole 504 and backwashes the adsorption layer 505. The upward movement of the box cover 2 not only improves the vibration cleaning effect, but also blows the adsorption layer 505 in the opposite direction to ensure the subsequent cleaning and dehumidification effect.

[0075] S3. When the detection unit 8 detects an increase in the humidity value inside the cabinet 1, the control unit 5 increases the temperature value inside the cabinet 1. The dry gas flows upward in one direction along the circulation section 6 and the reversing section 7 and is discharged. Therefore, the water vapor inside the cabinet 1 adheres to the outer surface of each electrical structure and affects its normal operation.

[0076] Specifically, S3 also includes: S301. When the humidity value detected by the humidity sensor in the detection unit 8 increases and is greater than the set minimum humidity preset value but less than the set first humidity preset value, and the temperature value detected by the temperature sensor is less than the set minimum temperature value, the heater 502 starts and generates heat, the output end of the telescopic member 508 extends and drives the moving frame 501 to move upward, the overlapping area of ​​the overlapping hole 503 and the ventilation hole 504 inside the moving frame 501 decreases, the distance between the heater 502 and the mounting part 4 decreases and the heating temperature increases. At this time, the humidity inside the box 1 increases and is heated by the heater 502 and the height is adjusted to achieve high-temperature drying of each electrical structure. In addition, the gas flow inside the ventilation hole 504 decreases and can also prevent humid gas from entering the box 1 and affecting the subsequent initial effect.

[0077] S302, when the moving frame 501 moves upward, the heat-conducting component 510 above drives the follower 602 to move upward. The follower 602 stretches the elastic cover 603 and increases its volume. The heat-conducting component 510 conducts heat upward. The deformable component 703 expands due to heat and drives the moving component 701 to move. The docking hole 702 coincides with and connects with the one-way air outlet 605. The water vapor in the upper part of the box 1 flows upward along the one-way air outlet 605 to the inside of the elastic cover 603. The water vapor temporarily stored inside the elastic cover 603 can continue to be discharged upward along the vertical hole 14, improving the flow and discharge effect of water vapor.

[0078] S303. When the humidity value detected by the humidity sensor in the detection unit 8 increases and is greater than the first preset humidity value but less than the maximum preset humidity value, and the temperature value detected by the temperature sensor is less than the minimum preset temperature value, the output end of the telescopic component 508 reciprocates and extends, driving the moving frame 501 to move up and down. The moving frame 501 drives the follower 602 to move up and down through the heat-conducting component 510. The follower 602 drives the elastic cover 603 to deform elastically and causes the water vapor in the upper part of the box 1 to be discharged upward in one direction along the one-way air outlet 605. The water vapor inside the box 1 continuously flows upward in one direction and is discharged, further improving the flow and dehumidification effect of the dry high-temperature gas.

[0079] S304, the follower 602 moves up and down, causing the cover 2 to move up and down and vibrate. The outside gas is adsorbed and dehumidified by the adsorption layer 505 of the ventilation hole 504 and heated by the heater 502 before entering the interior of the box 1 and drying the mounting part 4 at high temperature. This ensures the dryness of the gas entering the interior of the box 1 along the ventilation hole 504 and avoids secondary pollution to various electrical structures.

[0080] S4. When the detection unit 8 detects that the internal temperature value of the enclosure 1 reaches the preset maximum temperature value or the humidity value reaches the preset maximum humidity value, the control unit 5 moves upward to the maximum distance and disconnects the installation unit 4, effectively improving the circuit breaking efficiency and preventing damage to various electrical structures in high temperature and high humidity environments.

[0081] The minimum preset temperature value is less than the first preset temperature value, and the first preset temperature value is less than the maximum preset temperature value; the minimum preset humidity value is less than the first preset humidity value, and the first preset humidity value is less than the maximum preset humidity value. By using the stepped settings of temperature and humidity values, it ensures different working states in different environments, making it more adaptable and more precisely controllable.

[0082] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0083] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outdoor cable branch box, comprising a box body (1), a box cover (2) movably connected to the top of the box body (1), an installation part (4) provided inside the box body (1), and a plurality of detection units (8) evenly arranged on one side of the installation part (4), characterized in that, Also includes: The control unit (5) is movably connected inside the box (1) and is used to adjust the ventilation efficiency and heating temperature of the box (1); The circulation section (6) is movably connected above the control section (5) for circulating gas. The circulation section (6) is movably connected to the reversing section (7) for adjusting the gas flow direction inside the circulation section (6). When the detection unit (8) detects that the internal temperature value of the box (1) increases, the control section (5) moves downward, and the external gas flows into the box (1) in one direction along the reversing section (7) and is discharged downward. When the detection unit (8) detects that the internal humidity value of the box (1) increases, the control section (5) moves upward and the temperature increases. The external gas is dried at high temperature and flows into the box (1) and is discharged upward in one direction along the reversing section (7).

2. The outdoor cable branch box according to claim 1, characterized in that, A door (3) is provided on one side of the box (1), a bottom (12) is provided at the bottom of the box (1), and a sunshade (13) is provided on the lower side of the box cover (2). Multiple vertical holes (14) are evenly opened inside the sunshade (13). The detection unit (8) includes a temperature sensor and a humidity sensor, which are used to detect the temperature and humidity values ​​inside the box (1).

3. The outdoor cable branch box according to claim 1, characterized in that, The installation unit (4) includes: Assembly frame (401) is fixedly connected to the inner wall of the box (1). Multiple crossbeams (402) are evenly arranged between the two assembly frames (401). A busbar chamber (403) is provided on one side of the upper crossbeam (402), and a circuit unit (404) is provided on one side of the lower crossbeam (402). A branch cable is connected between the busbar chamber (403) and the circuit unit (404). Organic protective plate (406) is fixedly installed inside the box (1) and located between the mother chamber (403) and the circuit unit (404). It is a transparent insulating partition used to isolate and insulate high voltage electricity. Insulators (405) are symmetrically arranged on both sides of the organic protective plate (406). The side wall of the insulator (405) is fixedly connected to the side wall of the assembly frame (401).

4. The outdoor cable branch box according to claim 1, characterized in that, The control department (5) includes: Ventilation holes (504) are evenly distributed on both sides of the box (1). An adsorption layer (505) is provided inside the ventilation holes (504) to adsorb water vapor in the gas. A baffle (506) is provided on the outer wall of each ventilation hole (504). The movable frame (501) is movably connected to the inner wall of the box (1). Multiple overlapping holes (503) are evenly opened inside the movable frame (501). The overlapping holes (503) correspond to the ventilation holes (504). The bottom of the movable frame (501) is provided with a telescopic component (508) through a fixed layer (509). The bottom of the telescopic component (508) is fixedly connected to the bottom of the box (1) and is used to adjust the height of the movable frame (501). A circuit breaker (507) is provided on one side of the inner wall of the box (1). The heat-conducting component (510) has its bottom fixedly connected to the top of the movable frame (501) via a heater (502) for conducting the temperature value at the heater (502) upward.

5. The outdoor cable branch box according to claim 4, characterized in that, The distribution department (6) includes: Support member (601) is fixedly connected to the inner wall of box (1); The follower (602) is fixedly connected to the bottom of the box cover (2), and the top of the heat-conducting component (510) passes through the support (601) and is hinged to the bottom of the follower (602). An elastic cover (603) is provided between the support (601) and the follower (602) to seal the cavity between the support (601) and the follower (602) and to allow elastic deformation. A one-way air inlet (604) and a one-way air outlet (605) are symmetrically provided inside the support (601) and the follower (602).

6. The outdoor cable branch box according to claim 5, characterized in that, The commutation unit (7) includes: The movable part (701) is symmetrically and movably connected to the support part (601) and the follower part (602) on the opposite side, and the movable part (701) is provided with a docking hole (702) inside, which corresponds to the one-way air inlet (604) and the one-way air outlet (605) respectively; The deformable part (703) is fixedly connected to the side wall of the movable part (701) on one side, and fixedly connected to the support part (601) or follower part (602) on the opposite side via the positioning part (704) on the other side. When the temperature of the heat-conducting part (510) rises, the deformable part (703) expands in volume and drives the movable part (701) to move away from the positioning part (704).

7. A method for protecting an outdoor cable branch box, wherein the method utilizes the outdoor cable branch box as described in any one of claims 1-6 to achieve protection, characterized in that, Includes the following steps: S1, The installation section (4) is equipped with various electrical structures. The box (1) is fixedly installed with the pre-embedded base (9) by means of the box bottom (12). The cable passes through the pre-embedded base (9) along the main cable trench (11) and cable well (10) to reach the inside of the box (1). S2. When the detection unit (8) detects that the temperature inside the box (1) has increased, the control unit (5) increases the gas flow rate inside the box (1), and the cooling gas flows downward in one direction along the flow section (6) and the reversing section (7) and is discharged. S3. When the detection unit (8) detects that the humidity value inside the box (1) has increased, the control unit (5) increases the temperature value inside the box (1), and the dry gas flows upward in one direction along the flow section (6) and the reversing section (7) and is discharged. S4. When the detection unit (8) detects that the internal temperature value of the cabinet (1) reaches the set maximum temperature preset value or the humidity value reaches the set maximum humidity preset value, the control unit (5) moves upward to the maximum distance and disconnects the installation unit (4).

8. The protection method for an outdoor cable branch box according to claim 7, characterized in that, S2 also includes: S201. When the temperature value detected by the temperature sensor in the detection unit (8) increases and is greater than the set minimum temperature preset value but less than the set first temperature preset value, and the humidity value detected by the humidity sensor is less than the set minimum humidity value, the output end of the telescopic component (508) shortens and drives the moving frame (501) to move downward. The overlapping area of ​​the overlapping hole (503) and the ventilation hole (504) inside the moving frame (501) increases, and the flow of external gas along the ventilation hole (504) increases. S202, When the moving frame (501) moves downward, the heat-conducting component (510) and the follower (602) above drive the box cover (2) to move downward. The box cover (2) drives the sunshade (13) to move downward and increases the sunshade and rain protection area. The docking hole (702) coincides and connects with the one-way air inlet hole (604). S203. When the temperature value detected by the temperature sensor in the detection unit (8) rises and is greater than the first preset temperature value but less than the maximum preset temperature value, and the humidity value detected by the humidity sensor is less than the minimum set humidity value, the output end of the telescopic component (508) reciprocates and extends and drives the moving frame (501) to move up and down. The moving frame (501) drives the follower (602) to move up and down through the heat-conducting component (510). The follower (602) drives the elastic cover (603) to deform elastically and causes the outside gas to enter the box (1) in one direction downward along the one-way air inlet (604) and finally discharge outward along the ventilation hole (504). S204, the follower (602) moves up and down, causing the box cover (2) to vibrate up and down, and the gas inside the box (1) is discharged outward along the ventilation hole (504) and backwashes the adsorption layer (505).

9. A protection method for an outdoor cable branch box according to claim 7, characterized in that, S3 also includes: S301. When the humidity value detected by the humidity sensor in the detection unit (8) increases and is greater than the set minimum humidity preset value but less than the set first humidity preset value, and the temperature value detected by the temperature sensor is less than the set minimum temperature value, the heater (502) starts and generates heat, the output end of the telescopic component (508) extends and drives the moving frame (501) to move upward, the overlapping area of ​​the overlapping hole (503) and the ventilation hole (504) inside the moving frame (501) decreases, the distance between the heater (502) and the mounting part (4) decreases and the heating temperature increases; S302, When the moving frame (501) moves upward, the heat-conducting component (510) above drives the follower (602) to move upward. The follower (602) stretches the elastic cover (603) and increases its volume. The heat-conducting component (510) conducts heat upward. The deformable component (703) expands due to heat and drives the moving component (701) to move. The docking hole (702) overlaps and connects with the one-way air outlet (605). The water vapor in the upper part of the box (1) flows upward along the one-way air outlet (605) to the inside of the elastic cover (603). S303. When the humidity value detected by the humidity sensor in the detection unit (8) increases and is greater than the first preset humidity value but less than the maximum preset humidity value, and the temperature value detected by the temperature sensor is less than the minimum preset temperature value, the output end of the telescopic component (508) reciprocates and extends and drives the moving frame (501) to move up and down. The moving frame (501) drives the follower (602) to move up and down through the heat-conducting component (510). The follower (602) drives the elastic cover (603) to deform elastically and causes the water vapor in the upper part of the box (1) to be discharged upward in one direction along the one-way air outlet (605). S304, the follower (602) moves up and down, causing the box cover (2) to move up and down and vibrate. The outside gas is adsorbed and dehumidified by the adsorption layer (505) of the ventilation hole (504) and heated by the heater (502) before entering the box (1) and drying the mounting part (4) at high temperature.

10. A protection method for an outdoor cable branch box according to claim 7, characterized in that, The minimum preset temperature value is less than the first preset temperature value, and the first preset temperature value is less than the maximum preset temperature value; the minimum preset humidity value is less than the first preset humidity value, and the first preset humidity value is less than the maximum preset humidity value.

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