An outdoor protective low-voltage distribution cabinet

Abstract

This invention discloses an outdoor protective low-voltage distribution cabinet, relating to the field of distribution cabinet technology. It includes a cabinet body and an exhaust hood mounted on top of the cabinet body, with an adjustment assembly on the top of the cabinet body. In use, activating the first electric actuator pushes the adjustment plate, adjustment rod, and fixing plate upwards, lifting the rainproof visor and deflector plate, separating them from the exhaust hood. Simultaneously, the elastic deflector pad undergoes elastic deformation, forming a pointed cone shape with V-shaped deflector strips at different angles distributed on its four inclined surfaces. At this point, the rainproof visor and deflector plate are suspended above the exhaust hood, allowing hot air to flow outwards from the suspended space. The airflow space is significantly expanded, and hot air is quickly discharged through a "bottom-in, top-out" convection pattern, avoiding stagnation. The pointed cone-shaped elastic deflector pad transforms the narrow gap between the flat plates into a frustum-shaped space, significantly increasing the airflow volume and improving the efficiency of hot air discharge.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, specifically to an outdoor protective low-voltage power distribution cabinet. Background Technology

[0002] Low-voltage switchgear refers to devices used for distributing and controlling low-voltage power systems. Its core function is to distribute, control, monitor, and protect low-voltage power. It is widely used in power distribution scenarios in industry, construction, and commerce. Low-voltage switchgear integrates multiple electrical components into a single cabinet, facilitating maintenance, repair, and management, and improving system reliability and maintainability. Outdoor low-voltage switchgear is specifically designed for outdoor environments, using waterproof, dustproof, sun-proof, and corrosion-resistant shell materials to withstand harsh outdoor conditions such as wind, rain, high temperatures, humidity, and salt spray.

[0003] In existing technology, outdoor protective low-voltage distribution cabinets typically have a rain cap installed on top for rain protection, and numerous small ventilation holes are provided on the four sides of the bottom of the rain cap to allow the internal cooling fan to expel heat upwards through these small ventilation holes. However, in hot weather, when the internal heat of the distribution cabinet increases, its temperature control system will increase the power of the cooling fan. But due to the small size of the ventilation holes, heat dissipation may be insufficient, causing some hot air to remain trapped in the narrow space between the top of the cabinet and the rain cap. This results in the electrical components on the top of the cabinet and nearby being exposed to high temperatures for extended periods, accelerating the aging of insulation materials, reducing equipment lifespan, and even causing short-circuit faults.

[0004] Therefore, we propose an outdoor protective low-voltage distribution cabinet to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide an outdoor protective low-voltage distribution cabinet to solve the problem mentioned in the background art. When using the outdoor protective low-voltage distribution cabinet, heat is discharged through small heat dissipation holes at the bottom of the rain cap. However, due to the small size of the heat dissipation holes, heat dissipation may not be timely, and hot air may be trapped in the narrow space between the top of the distribution cabinet and the rain cap, which is not conducive to the normal operation of electrical components and reduces the life of the equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an outdoor protective low-voltage distribution cabinet, comprising a distribution cabinet body and an exhaust hood installed on the top of the distribution cabinet body, wherein an adjustment component is provided on the top of the distribution cabinet body, and a rainproof extension component is provided inside the adjustment component;

[0007] The adjustment assembly includes a rainproof brim and a drainage plate inside the rainproof brim. A fixing plate is bolted to the inside of the rainproof brim. Adjusting rods are fixedly installed at the four corners of the bottom of the fixing plate. Adjusting plates are set at the bottom ends of the four adjusting rods. A first electric push rod is fixedly installed at the center of the bottom of the adjusting plate. An elastic drainage pad is fixedly connected to the bottom of the drainage plate. A pointed cone is fixedly connected to the center of the elastic drainage pad. Multiple V-shaped drainage strips are fixedly connected to the bottom of the elastic drainage pad. The first electric push rod pushes the adjusting plate and adjusting rods upward, pushing the fixing plate upward, thereby lifting the rainproof brim upward, separating the drainage plate from the exhaust hood, forming an unobstructed flow space, which facilitates the rapid discharge of hot air from the exhaust holes and flow layer of the exhaust hood.

[0008] Preferably, a three-pronged rod is fixedly connected to the bottom end of the pointed cone. Arc-shaped holes are opened on the outer surfaces of both ends of the three-pronged rod. An inner groove is opened at the center of the top of the power distribution cabinet body. A forward and reverse motor is fixedly installed on one side inside the inner groove. A rotating rod is fixedly installed at the output end of the forward and reverse motor. Two arc-shaped locking rods are fixedly installed on the outer surface of the rotating rod.

[0009] Preferably, the outer surfaces of the two arc-shaped clamps are respectively movably embedded inside the two arc-shaped holes, and one end of the rotating rod is movably embedded in the other side of the inner groove. The arc-shaped clamps cooperate with the arc-shaped holes to limit the three-headed rod, thereby fixing the pointed cone. This causes the pointed cone to be subjected to a downward pulling force from the center. When the drainage plate moves upward, the center of the elastic drainage pad is affected by the pulling force of the pointed cone and is forced to deform, forming a pointed cone shape, which guides the discharged hot air and diffuses it out in all directions.

[0010] Preferably, the top of the drainage plate has an movable hole, and a mounting base is fixedly installed on the top of the drainage plate near the edge of the movable hole. The top of the elastic drainage pad is fixedly connected to four support plates, and the top of each of the four support plates is fixedly connected to two return springs.

[0011] Preferably, one end of each of the four reset springs is fixedly connected to the top surface inside the mounting base, the top of the mounting base is in contact with the bottom of the fixing plate, a square groove is provided at the bottom of the rainproof brim, and the drainage plate is installed inside the square groove by bolts.

[0012] Preferably, each of the four corners of the top of the adjusting plate is provided with a mounting groove, and the bottom ends of the four adjusting rods are respectively movably embedded in the four mounting grooves. The bottom ends of the four adjusting rods are connected to the adjusting plate by bolts. A fixing seat is fixedly installed on the rear wall inside the distribution cabinet body. The bottom end of the first electric push rod is fixedly installed on the top of the fixing seat. The bottom of the diversion plate is in contact with the top of the exhaust hood. The bottom ends of the four adjusting rods movably penetrate the diversion plate into the interior of the distribution cabinet body.

[0013] Preferably, the rainproof extension assembly includes a movable plate, three movable rods are fixedly installed on each of the four outer sides of the movable plate, one end of the multiple movable rods is fixedly connected to the rainproof extension plate, a second electric push rod is fixedly installed at the center of the bottom of the movable plate, a support base is fixedly installed at the bottom end of the second electric push rod, and four connecting frames are fixedly installed at the bottom of the rainproof extension plate, with a hollow cover movably embedded inside each of the four connecting frames.

[0014] Preferably, the interior of the perforated cover is filled with a natural insect repellent, and connecting blocks are fixedly installed at the bottom of both ends of the four perforated covers. Each of the connecting blocks has a hand-tightening bolt threaded inside, and one end of each hand-tightening bolt is threaded onto the outer surface of the four connecting frames. The inner walls of the connecting blocks are in contact with the outer surfaces of the four connecting frames.

[0015] Preferably, the bottom of the rainproof brim has a square storage groove, and three sliding holes are provided on each of the four sides of the inside of the rainproof brim. A first round hole is provided at the center of the top of the mounting base, and a second round hole is provided at the center of the top of the fixing plate. The outer surface of the rainproof extension plate is movably embedded in the inside of the square storage groove. The outer surfaces of the multiple movable rods are respectively movably embedded in the inside of the multiple sliding holes. The outer surface of the movable plate is movably embedded in the inside of the rainproof brim. The support base is installed on the top of the fixing plate near the second round hole by bolts, and the outer surface of the support base is located inside the first round hole and the second round hole respectively.

[0016] Preferably, a PLC controller is fixedly installed on the rear wall inside the power distribution cabinet body, a temperature sensor is installed on the top surface inside the power distribution cabinet body, the detection head of the temperature sensor is fixedly extended through the top of the power distribution cabinet body, and four mounting holes are opened on the top of the power distribution cabinet body, with a cooling fan body installed inside each of the four mounting holes.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. When using this invention, the first electric actuator is activated, pushing the adjusting plate, adjusting rod, and fixing plate upwards to lift the rainproof brim and the deflector plate, separating them from the exhaust hood. Simultaneously, the elastic deflector pad undergoes elastic deformation, forming a pointed cone shape with five V-shaped deflector strips at different angles distributed on its four inclined surfaces. At this time, the rainproof brim and deflector plate are suspended above the exhaust hood, allowing hot air to flow outwards from the suspended space. The airflow space is significantly expanded, and hot air is quickly discharged through a "bottom-in, top-out" convection pattern, avoiding stagnation. The pointed cone-shaped elastic deflector pad transforms the "narrow gap between flat plates" into a "truncated pyramidal space," significantly increasing the airflow volume. During the hot air flow, guided by the V-shaped deflector strips at different angles, a spiral airflow of "central convergence → peripheral diffusion" is formed, improving the efficiency of hot air discharge.

[0019] 2. When using this invention, the second electric push rod pulls the moving plate downward, and the moving rod drives the rainproof extension plate downward to fit over the outer surface of the exhaust hood to protect it. Under the action of the rainproof extension component, the width of the rainproof brim can be extended, the rainproof range can be expanded, and the rainproof effect can be improved.

[0020] 3. When using this invention, four perforated covers are set up on the four sides of the exhaust cover. When hot air is discharged, it flows through the perforated covers, causing the insect repellent components inside to volatilize and form a dynamic odor barrier, which diffuses the insect repellent odor to the surrounding area of ​​the power distribution cabinet, expands the protection range, repels insects, and improves the insect repellent effect. Attached Figure Description

[0021] Figure 1 This is a front perspective view of an outdoor protective low-voltage distribution cabinet according to the present invention;

[0022] Figure 2 This is a three-dimensional sectional view of the main body of an outdoor protective low-voltage distribution cabinet according to the present invention.

[0023] Figure 3 This is a cross-sectional schematic diagram of the regulating component in an outdoor protective low-voltage distribution cabinet according to the present invention;

[0024] Figure 4 This is a three-dimensional view of the structure of the current-draining plate in an outdoor protective low-voltage distribution cabinet according to the present invention;

[0025] Figure 5 This is a cross-sectional view of the internal groove structure in an outdoor protective low-voltage distribution cabinet according to the present invention;

[0026] Figure 6 This is a three-dimensional view of the structure of a defensive extension component in an outdoor protective low-voltage distribution cabinet according to the present invention;

[0027] Figure 7This is a cross-sectional view of the movable plate in an outdoor protective low-voltage distribution cabinet according to the present invention;

[0028] Figure 8 This is a three-dimensional view of the structure of the mounting base in an outdoor protective low-voltage distribution cabinet according to the present invention;

[0029] Figure 9 This is a cross-sectional view of the fixing plate in an outdoor protective low-voltage distribution cabinet according to the present invention;

[0030] Figure 10 This is a three-dimensional view of the structure of the V-shaped current guide strip in an outdoor protective low-voltage distribution cabinet according to the present invention.

[0031] Figure 11 This is a three-dimensional view of the structure of the hollow cover in an outdoor protective low-voltage distribution cabinet according to the present invention.

[0032] In the picture:

[0033] 1. Distribution cabinet body; 2. Exhaust hood; 3. Adjustment assembly; 301. Rainproof visor; 302. Fixing plate; 303. Adjustment rod; 304. First electric push rod; 305. Adjustment plate; 306. Mounting slot; 307. Square slot; 308. Diversion plate; 309. Elastic diversion pad; 310. Movable hole; 311. Mounting base; 312. First round hole; 313. Support plate; 314. Return spring; 315. V-shaped diversion strip; 316. Pointed cone; 317. Three-headed rod; 318. Second round hole; 319. 320. Arc-shaped hole; 321. Forward and reverse motor; 322. Rotating rod; 323. Arc-shaped locking rod; 324. Square storage slot; 325. Sliding hole; 326. Fixing base; 4. Rainproof extension assembly; 401. Moving plate; 402. Moving rod; 403. Support base; 404. Second electric push rod; 405. Rainproof extension plate; 406. Connecting frame; 407. Hollowed-out cover; 408. Connecting block; 409. Hand-tightening bolt; 5. PLC controller; 6. Temperature sensor; 7. Inner groove; 8. Mounting hole; 9. Cooling fan body. Detailed Implementation

[0034] 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.

[0035] Example 1: Please refer to Figures 1-11As shown, the present invention provides a technical solution: an outdoor protective low-voltage distribution cabinet, including a distribution cabinet body 1 and an exhaust hood 2 installed on the top of the distribution cabinet body 1. An adjustment component 3 is provided on the top of the distribution cabinet body 1, and a rainproof extension component 4 is provided inside the adjustment component 3. The adjustment component 3 includes a rainproof visor 301 and a drainage plate 308 inside the rainproof visor 301. A fixing plate 302 is bolted to the inside of the rainproof visor 301. Adjusting rods 303 are fixedly installed at the four corners of the bottom of the fixing plate 302. Adjusting plates 305 are provided at the bottom ends of the four adjusting rods 303. A first electric push rod 304 is fixedly installed at the center of the bottom of the adjusting plate 305. An elastic drainage pad 309 is fixedly connected to the bottom of the drainage plate 308. A pointed cone 316 is fixedly connected to the center of the 9. Multiple V-shaped drainage strips 315 are fixedly connected to the bottom of the elastic drainage pad 309. The first electric push rod 304 pushes the adjusting plate 305 and the adjusting rod 303 upward, pushing the fixed plate 302 upward, thereby lifting the rainproof cap 301 upward, so that the drainage plate 308 is separated from the exhaust hood 2, forming an unobstructed flow space, which facilitates the rapid discharge of hot air from the exhaust hole and flow layer of the exhaust hood 2. A three-headed rod 317 is fixedly connected to the bottom end of the pointed cone 316. Arc-shaped holes 319 are opened on the outer surface of both ends of the three-headed rod 317. An inner groove 7 is opened at the center of the top of the distribution cabinet body 1. A forward and reverse motor 320 is fixedly installed on one side inside the inner groove 7. The output end of the forward and reverse motor 320 is fixedly installed. The device is equipped with a rotating rod 321, on the outer surface of which two arc-shaped locking rods 322 are fixedly installed. The outer surfaces of the two arc-shaped locking rods 322 are respectively movably embedded in the interior of two arc-shaped holes 319. One end of the rotating rod 321 is movably embedded in the other side of the inner groove 7. The arc-shaped locking rods 322 cooperate with the arc-shaped holes 319 to limit the three-head rod 317, thereby fixing the pointed cone 316. This causes the pointed cone 316 to be subjected to a downward pulling force from the center. When the drainage plate 308 moves upward, the center of the elastic drainage pad 309 is affected by the pulling force of the pointed cone 316 and is forced to deform into a pointed cone shape, which guides the discharged hot air and diffuses it out in all directions. The top of the drainage plate 308 has a movable hole 310. The top of the drainage plate 308 is close to the movable hole 310. A mounting base 311 is fixedly installed at the edge of the moving hole 310. Four support plates 313 are fixedly connected to the top of the elastic drainage pad 309. Two return springs 314 are fixedly connected to the top of each of the four support plates 313. One end of each of the four return springs 314 is fixedly connected to the top surface inside the mounting base 311. The top of the mounting base 311 is in contact with the bottom of the fixed plate 302. A square groove 307 is opened at the bottom of the rainproof visor 301. The drainage plate 308 is installed inside the square groove 307 by bolts. Mounting grooves 306 are opened at the four corners of the top of the adjusting plate 305. The bottom ends of the four adjusting rods 303 are movably embedded in the four mounting grooves 306 respectively. The bottom ends of the four adjusting rods 303 are connected to the adjusting plate 305 by bolts.A mounting base 325 is fixedly installed on the rear wall inside the power distribution cabinet body 1. The bottom end of the first electric push rod 304 is fixedly installed on the top of the mounting base 325. The bottom of the drain plate 308 contacts the top of the exhaust hood 2. The bottom ends of the four adjusting rods 303 all movably pass through the drain plate 308 to the interior of the power distribution cabinet body 1. A PLC controller 5 is fixedly installed on the rear wall inside the power distribution cabinet body 1. A temperature sensor 6 is installed on the top surface inside the power distribution cabinet body 1. The detection head of the temperature sensor 6 is fixedly extended to the top of the power distribution cabinet body 1. Four mounting holes 8 are opened on the top of the power distribution cabinet body 1, and a cooling fan body 9 is installed inside each of the four mounting holes 8.

[0036] In this embodiment, during use, the first electric actuator 304, the forward / reverse motor 320, the second electric actuator 404, the temperature sensor 6, and the PLC controller 5 are electrically connected. The bottom of the drainage plate 308 is flush with the bottom of the rainproof brim 301, and the bottom of the drainage plate 308 is in contact with the top of the exhaust hood 2, so that the rainproof brim 301 rests on the top of the exhaust hood 2. Figure 1As shown. When the power distribution cabinet body 1 is working, the four cooling fans 9 operate, drawing the hot air inside the power distribution cabinet body 1 upwards to the exhaust hood 2 and the bottom of the elastic drainage pad 309, and then dissipating it through the exhaust holes on all four sides of the exhaust hood 2. When the temperature control system built into the power distribution cabinet body 1 detects that there is too much heat inside the power distribution cabinet body 1, it will automatically adjust the power of the four cooling fans 9, increase the fan speed, and quickly dissipate the heat upwards. At the same time, the temperature sensor 6 detects the temperature inside the exhaust hood 2 and transmits the detected temperature data to the PLC controller 5 via an electrical signal. The PLC controller 5 has a pre-set maximum and minimum operating threshold for temperature. When the temperature data received by the PLC controller 5 exceeds the set maximum operating threshold, it indicates that the heat inside the exhaust hood 2 is not dissipating in time, resulting in hot air stagnation. Then, the PLC controller 5 will control the first electric actuator 304 to start. The adjusting plate 305 is moved upward by the output end of the first electric actuator 304. The adjusting plate 305 and the adjusting rod 303 are fixed together by bolts. Therefore, when the adjusting plate 305 moves up and down, it will drive the adjusting rod 303 to move up and down as well. As the adjusting plate 305 moves upward, it pushes the adjusting rod 303 upward as well, and pushes the fixing plate 302 upward, thereby lifting the rainproof visor 301 upward. At the same time, it drives the deflector plate 308 upward as well, separating it from the top of the exhaust hood 2, and gradually increasing the distance between them. The arc-shaped locking rod 322 is fitted into the arc-shaped hole 319 to fix the three-headed rod 317, and then to fix the pointed cone 316. When the drainage plate 308 moves upward along with the rainproof brim 301, it will drive the mounting base 311 and the elastic drainage pad 309 to move upward together. Since the pointed cone 316 is installed at the center of the elastic drainage pad 309 and the four sides of the elastic drainage pad 309 are installed at the bottom of the drainage plate 308, when the elastic drainage pad 309 moves upward, its center will be unable to move upward under the limitation of the pointed cone 316, causing the elastic drainage pad 309 to undergo elastic deformation. That is, the center of the elastic drainage pad 309 remains stationary under the fixation of the pointed cone 316, and its four sides move upward with the drainage plate 308 and gradually tilt. At the same time, the four support plates 313 tilt together and pull the return spring 314 to unfold.When the first electric actuator 304 automatically closes, the rainproof visor 301 and the air intake plate 308 move above the exhaust hood 2, making them appear to be suspended above the exhaust hood 2, forming an unobstructed airflow layer between them. The elastic air intake pad 309 is stretched into a downward-pointing cone shape, with four inclined surfaces corresponding to the four cooling fan bodies 9. Five V-shaped air intake strips 315 at different angles are distributed on each of the other four inclined surfaces. At this time, the hot air accumulated in the exhaust hood 2 can not only be discharged through the exhaust holes of the exhaust hood 2, but also flow outwards from the suspended space at the top of the exhaust hood 2. The airflow space is significantly expanded, and hot air can be quickly discharged through a "bottom-in, top-out" convection pattern, avoiding stagnation. With the cooperation of the deformed elastic air intake pad 309 and the pointed cone 316, a downward-pointing cone shape is formed, creating a "narrow gap between flat plates" between the air intake plate 308 and the exhaust hood 2. The design transforms the space into a "quadrangular truncated pyramid," significantly increasing the airflow volume and improving the efficiency of upward hot air exhaust. As the hot air flows upward along the four conical slopes of the pointed conical elastic guide pad 309, it is guided by V-shaped guide strips 315 at different angles, causing it to diffuse outward. The pointed ends of the V-shaped guide strips 315 face the pointed cone 316, and the airfoil-shaped extension faces the edge of the guide plate 308. This creates a spiral airflow of "central convergence → peripheral diffusion" during hot air exhaust, resulting in more even outward exhaust of hot air, improving exhaust efficiency, and preventing hot air stagnation. This solves the problem that outdoor protective low-voltage distribution cabinets, which exhaust heat through small ventilation holes at the bottom of the rain cap, often experience insufficient heat dissipation due to the small size of the holes. This can lead to hot air stagnation in the narrow space between the top of the distribution cabinet and the rain cap, hindering the normal operation of electrical components and reducing equipment lifespan.

[0037] Furthermore, when the temperature control system inside the power distribution cabinet 1 detects that the heat inside the power distribution cabinet 1 is within the normal range, it will automatically adjust the power of the cooling fan 9. At the same time, the PLC controller 5 will restart the first electric push rod 304, pulling the adjusting plate 305, adjusting rod 303 and fixing plate 302 downward to reset, causing the rainproof visor 301 and the drainage plate 308 to move downward and fit against the exhaust hood 2 again. At the same time, the tension on the elastic drainage pad 309 gradually decreases and returns to its original flat state. In addition, the reset spring 314 contracts and returns to its original shape, providing tension to the support plate 313, thereby providing tension to the elastic drainage pad 309, preventing the bottom of the elastic drainage pad 309 from automatically drooping and falling above the cooling fan 9, affecting the normal exhaust of hot air.

[0038] Furthermore, the forward and reverse motor 320 is started, driving the rotating rod 321 to rotate, causing the two arc-shaped locking rods 322 to rotate out of the corresponding arc-shaped holes 319. At this time, the pointed cone 316 is no longer fixed. Next, the bolts between the adjusting rod 303 and the adjusting plate 305 are removed, and then the entire adjusting assembly 3 is moved upward, so that the adjusting rod 303 is removed from the inside of the distribution cabinet body 1. This allows the adjusting assembly 3 to be separated from the distribution cabinet body 1, making it convenient to use with other corresponding equipment, or to replace the diversion plate 308 and the elastic diversion pad 309 in the adjusting assembly 3.

[0039] Example 2: Figures 3-4 and Figures 6-9 As shown, the rainproof extension assembly 4 includes a movable plate 401. Three movable rods 402 are fixedly installed on each of the four outer sides of the movable plate 401. One end of each movable rod 402 is fixedly connected to a rainproof extension plate 405. A second electric actuator 404 is fixedly installed at the center of the bottom of the movable plate 401. A support base 403 is fixedly installed at the bottom end of the second electric actuator 404. Four connecting brackets 406 are fixedly installed at the bottom of the rainproof extension plate 405. A perforated cover 407 is movably embedded inside each of the four connecting brackets 406. The perforated cover 407 is filled with a natural insect repellent. Connecting blocks 408 are fixedly installed at the bottom of both ends of each of the four perforated covers 407. Hand-tightening bolts 409 are threaded into the interior of each connecting block 408. One end of each hand-tightening bolt 409 is threaded onto the outer surface of the four connecting brackets 406. The inner wall of the connecting block 408 is in contact with the outer surface of the four connecting brackets 406. The bottom of the rainproof brim 301 is provided with a square storage groove 323. Three sliding holes 324 are provided on each of the four sides inside the rainproof brim 301. The center of the top of the mounting base 311 is provided with a first round hole 312. The center of the top of the fixing plate 302 is provided with a second round hole 318. The outer surface of the rainproof extension plate 405 is movably embedded in the inside of the square storage groove 323. The outer surfaces of the multiple moving rods 402 are movably embedded in the inside of the multiple sliding holes 324. The outer surface of the moving plate 401 is movably embedded in the inside of the rainproof brim 301. The support base 403 is installed on the top of the fixing plate 302 near the second round hole 318 by bolts. The outer surface of the support base 403 is located inside the first round hole 312 and the second round hole 318.

[0040] In this embodiment, during use, the second electric actuator 404 is activated, pulling the movable plate 401 downwards and causing multiple movable rods 402 to move downwards in the corresponding sliding holes 324. This, in turn, causes the rainproof extension plate 405 to move downwards, exiting from the square storage slot 323 and fitting onto the outer surface of the exhaust cover 2. This protects the exhaust cover 2 from rainwater being blown sideways by the wind and entering the interior of the exhaust cover 2 through its exhaust holes, thus preventing it from affecting the cooling fan body 9 or the forward / reverse motor 320. The rainproof extension component 4 extends the width of the rainproof brim 301, expanding the rainproof range and improving the rainproof effect. The perforated cover 407 is filled with a natural insect repellent, and four perforated covers 407 are provided, located on the four sides of the exhaust cover 2. Figure 6 As shown, when the cooling fan body 9 is working, the hot air is discharged through the exhaust hole of the exhaust cover 2 and flows through the hollow cover 407, which causes the insect repellent ingredients inside to evaporate, forming a dynamic odor barrier. This diffuses the insect repellent odor to the surrounding area of ​​the power distribution cabinet body 1, expands the protection range, repels insects, improves the insect repellent effect, and reduces the number of insects approaching the power distribution cabinet body 1.

[0041] The overall mechanism and its working principle are as follows: When the distribution cabinet body 1 is working, the four cooling fans 9 operate, drawing the hot air inside the distribution cabinet body 1 upwards into the exhaust hood 2, and expelling it through the exhaust holes on all four sides of the exhaust hood 2. When the temperature control system built into the distribution cabinet body 1 detects that there is too much heat inside the distribution cabinet body 1, it will automatically adjust the power of the four cooling fans 9, increase the fan speed, and quickly expel the heat upwards. At the same time, the temperature sensor 6 detects the temperature inside the exhaust hood 2 and transmits the detected temperature data to the PLC controller 5 via an electrical signal. The PLC controller 5 has a pre-set maximum and minimum operating threshold for the temperature. When the temperature data received by the PLC controller 5 exceeds the set maximum operating threshold, it will control the first electric push rod 304 to start, pushing the adjusting plate 305 and the adjusting rod 303 upwards together, and pushing the fixed plate 302 upwards, thereby lifting the rainproof cap 301 upwards, and at the same time driving the drainage plate 308 upwards, separating it from the top of the exhaust hood 2, and gradually increasing the separation distance. At this time, the center of the elastic drainage pad 309 remains stationary under the fixation of the pointed cone 316, while its four sides move upward with the drainage plate 308 and gradually tilt. When the first electric actuator 304 automatically closes, the rainproof visor 301 and the deflector plate 308 move above the exhaust hood 2, making the rainproof visor 301 and the deflector plate 308 appear to be suspended above the exhaust hood 2, forming an unobstructed airflow layer between them. The elastic deflector pad 309 is stretched into a downward-pointing cone shape, with four inclined surfaces corresponding to the four cooling fan bodies 9. Five V-shaped deflector strips 315 at different angles are distributed on the other four inclined surfaces. At this time, the hot air accumulated in the exhaust hood 2 can not only be discharged through the exhaust holes of the exhaust hood 2, but also flow outward from the suspended space at the top of the exhaust hood 2. The airflow space is significantly expanded, and the hot air can be quickly discharged through the "bottom in, top out" convection mode, avoiding stagnation. With the cooperation of the deformed elastic deflector pad 309 and the pointed cone 316, the "narrow gap between flat plates" between the deflector plate 308 and the exhaust hood 2 is transformed into a "quadrangular frustum-shaped space", significantly increasing the airflow volume. Start the forward and reverse motor 320 to rotate the rotating rod 321, causing the two arc-shaped locking rods 322 to rotate out of the corresponding arc-shaped holes 319. Next, remove the bolts between the adjusting rod 303 and the adjusting plate 305, and then move the entire adjusting assembly 3 upwards, so that the adjusting rod 303 is removed from the inside of the distribution cabinet body 1, thus separating the adjusting assembly 3 from the distribution cabinet body 1. Start the second electric push rod 404 to pull the moving plate 401 downwards, which in turn moves the rainproof extension plate 405 downwards from the square storage slot 323 via the moving rod 402, covering the outer surface of the exhaust cover 2 to protect it. When hot air is discharged through the exhaust hole of the exhaust cover 2, it flows through the perforated cover 407, causing the insect repellent components inside to evaporate, forming a dynamic odor barrier that diffuses the insect repellent odor to the surrounding area of ​​the distribution cabinet body 1, expanding the protection range and repelling insects.

[0042] Among them, the power distribution cabinet body 1, the first electric push rod 304, the forward and reverse motor 320, the second electric push rod 404, the temperature sensor 6, the cooling fan body 9 and the PLC controller 5 are all existing technologies, and their components and operating principles are all publicly available technologies, so they will not be explained in detail here.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An outdoor protective low-voltage distribution cabinet, comprising a cabinet body (1) and an exhaust hood (2) installed on the top of the cabinet body (1), characterized in that: An adjustment component (3) is provided on the top of the power distribution cabinet body (1), and a rainproof extension component (4) is provided inside the adjustment component (3). The adjusting assembly (3) includes a rainproof brim (301) and a drainage plate (308) inside the rainproof brim (301). A fixing plate (302) is bolted to the inside of the rainproof brim (301). Adjusting rods (303) are fixedly installed at the four corners of the bottom of the fixing plate (302). Adjusting plates (305) are set at the bottom ends of the four adjusting rods (303). A first electric actuator (304) is fixedly installed at the center of the bottom of the adjusting plate (305). An elastic drainage pad (304) is fixedly connected to the bottom of the drainage plate (308). 09), a pointed cone (316) is fixedly connected to the center of the elastic drainage pad (309), and multiple V-shaped drainage strips (315) are fixedly connected to the bottom of the elastic drainage pad (309). The first electric push rod (304) pushes the adjusting plate (305) and the adjusting rod (303) to move upward, pushes the fixed plate (302) upward, thereby pushing the rainproof brim (301) upward, so that the drainage plate (308) is separated from the exhaust hood (2) to form an unobstructed flow space, which facilitates the rapid discharge of hot air from the exhaust hole and flow layer of the exhaust hood (2); The bottom end of the pointed cone (316) is fixedly connected to a three-headed rod (317). The outer surfaces of both ends of the three-headed rod (317) are provided with arc-shaped holes (319). The center of the top of the power distribution cabinet body (1) is provided with an inner groove (7). A forward and reverse motor (320) is fixedly installed on one side inside the inner groove (7). A rotating rod (321) is fixedly installed at the output end of the forward and reverse motor (320). Two arc-shaped clamps (322) are fixedly installed on the outer surface of the rotating rod (321). The outer surfaces of the two arc-shaped clamps (322) are respectively movably embedded in the interior of the two arc-shaped holes (319). One end of the rotating rod (321) is movably embedded in the other side of the inner groove (7). The arc-shaped clamps (322) cooperate with the arc-shaped holes (319) to limit the three-headed rod (317), thereby fixing the pointed cone (316) so that the pointed cone (316) is subjected to a downward pull from the center. When the drainage plate (308) moves upward, the center of the elastic drainage pad (309) is affected by the pull of the pointed cone (316) and is forced to deform to form a pointed cone shape, which guides the discharged hot air and diffuses it out in all directions.

2. The outdoor protective low-voltage distribution cabinet according to claim 1, characterized in that: The top of the drainage plate (308) is provided with a movable hole (310), and a mounting base (311) is fixedly installed on the top of the drainage plate (308) near the edge of the movable hole (310). The top of the elastic drainage pad (309) is fixedly connected with four support plates (313), and the top of each of the four support plates (313) is fixedly connected with two return springs (314).

3. The outdoor protective low-voltage distribution cabinet according to claim 2, characterized in that: One end of each of the four reset springs (314) is fixedly connected to the top surface inside the mounting base (311). The top of the mounting base (311) is in contact with the bottom of the fixing plate (302). A square groove (307) is provided at the bottom of the rainproof brim (301). The diversion plate (308) is installed inside the square groove (307) by bolts.

4. The outdoor protective low-voltage distribution cabinet according to claim 3, characterized in that: The four corners of the top of the adjustment plate (305) are provided with mounting slots (306). The bottom ends of the four adjustment rods (303) are respectively movably embedded in the four mounting slots (306). The bottom ends of the four adjustment rods (303) are connected to the adjustment plate (305) by bolts. The rear wall of the power distribution cabinet body (1) is fixedly installed with a fixing seat (325). The bottom end of the first electric push rod (304) is fixedly installed on the top of the fixing seat (325). The bottom of the diversion plate (308) is in contact with the top of the exhaust hood (2). The bottom ends of the four adjustment rods (303) all move through the diversion plate (308) to the inside of the power distribution cabinet body (1).

5. The outdoor protective low-voltage distribution cabinet according to claim 4, characterized in that: The rainproof extension assembly (4) includes a movable plate (401), three movable rods (402) are fixedly installed on the four sides of the movable plate (401), one end of the multiple movable rods (402) is fixedly connected to the rainproof extension plate (405), a second electric push rod (404) is fixedly installed at the center of the bottom of the movable plate (401), a support base (403) is fixedly installed at the bottom end of the second electric push rod (404), and four connecting frames (406) are fixedly installed at the bottom of the rainproof extension plate (405), and a hollow cover (407) is movably embedded inside each of the four connecting frames (406).

6. The outdoor protective low-voltage distribution cabinet according to claim 5, characterized in that: The interior of the perforated cover (407) is filled with natural insect repellent. Connecting blocks (408) are fixedly installed at the bottom of both ends of the four perforated covers (407). Hand-tightening bolts (409) are threaded into the interior of the multiple connecting blocks (408). One end of the multiple hand-tightening bolts (409) is threaded into the outer surface of the four connecting frames (406). The inner walls of the multiple connecting blocks (408) are in contact with the outer surfaces of the four connecting frames (406).

7. The outdoor protective low-voltage distribution cabinet according to claim 6, characterized in that: The bottom of the rainproof brim (301) is provided with a square storage groove (323). Three sliding holes (324) are provided on each of the four sides of the interior of the rainproof brim (301). A first round hole (312) is provided at the center of the top of the mounting base (311). A second round hole (318) is provided at the center of the top of the fixing plate (302). The outer surface of the rainproof extension plate (405) is movably embedded in the interior of the square storage groove (323). The outer surfaces of the multiple moving rods (402) are respectively movably embedded in the interior of the multiple sliding holes (324). The outer surface of the moving plate (401) is movably embedded in the interior of the rainproof brim (301). The support base (403) is installed on the top of the fixing plate (302) near the second round hole (318) by bolts. The outer surface of the support base (403) is located inside the first round hole (312) and the second round hole (318).

8. The outdoor protective low-voltage distribution cabinet according to claim 7, characterized in that: A PLC controller (5) is fixedly installed on the rear wall inside the power distribution cabinet body (1). A temperature sensor (6) is installed on the top surface inside the power distribution cabinet body (1). The detection head of the temperature sensor (6) is fixedly extended through the top of the power distribution cabinet body (1). Four mounting holes (8) are opened on the top of the power distribution cabinet body (1). A cooling fan body (9) is installed inside each of the four mounting holes (8).

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