Power distribution cabinet with dehumidification structure

Abstract

The invention relates to the technical field of power distribution boxes, in particular to a power distribution cabinet with a dehumidification structure, which comprises an electric cabinet box, a shell of the electric cabinet box is made of a metal material with certain strength and protection performance, a plurality of heat dissipation holes are formed in the left side and the right side of the electric cabinet box, and the sizes and the distribution of the heat dissipation holes are optimally designed. The outer wall of the electric cabinet box is rotatably connected with a cabinet door through a hinge, the cabinet door is provided with a sealing rubber strip, dust and water can be effectively prevented, an installation area is reasonably planned in the electric cabinet box, and an electric brake assembly is fixedly installed in the installation area. The ventilation circulation mechanism can dissipate heat in the electric brake assembly and the electric cabinet box, a driving mechanism capable of converting the wind direction of the ventilation circulation mechanism is further fixedly installed at the bottom end of the inner wall of the electric cabinet box, the design of an air channel in the ventilation circulation mechanism conforms to the aerodynamic principle, and efficient air circulation can be achieved; and a dehumidification mechanism is fixedly mounted in the electric cabinet box.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution boxes, and particularly to a distribution cabinet with a dehumidification structure. Background Art

[0002] In modern power systems, distribution boxes, as core devices for power distribution and control, are widely used in various fields. Whether it is industrial production, commercial operation, or residential life, the stable operation of distribution boxes is crucial for ensuring the reliability of power supply.

[0003] During actual use, distribution boxes face numerous challenges, and humidity is one of the most prominent problems. When the humidity is too high, water vapor in the air will condense into small water droplets on the insulation surface of electrical equipment. Insulating materials that could originally withstand 800V voltage may experience leakage at lower voltages under the influence of humidity. Distribution boxes are mostly installed in outdoor or basement environments with complex conditions and are extremely vulnerable to the influence of humid air. When the humidity inside the distribution box is high, condensation will form on the surface of electrical components, which will not only significantly reduce the insulation performance of electrical components, leading to safety accidents such as short circuits and leakage, but also accelerate the corrosion of metal parts, shorten the service life of the equipment, and increase maintenance costs and replacement frequencies.

[0004] Currently, the common dehumidification methods for distribution boxes mainly include condensation dehumidification, desiccant dehumidification, and heating dehumidification. Condensation dehumidification requires special refrigeration equipment, which not only has high costs but also has poor dehumidification effects in low-temperature environments. Although desiccant dehumidification is simple and easy to implement, the adsorption capacity of desiccants is limited, and they need to be replaced frequently, and the regeneration process is complex. Heating dehumidification has high energy consumption and easily causes the temperature inside the box to be too high, affecting the normal operation of electrical components. In addition, the heat dissipation and dehumidification functions of existing distribution boxes are independent of each other and cannot be effectively adjusted according to the actual internal environment of the distribution box. When the humidity inside the box is low, the continuous operation of the dehumidification equipment will cause energy waste, and when the humidity is high, if effective dehumidification cannot be carried out in time, the high-temperature environment inside the box will further exacerbate the aging and damage of electrical components. Therefore, it is of great practical significance to develop a distribution box that can flexibly switch between heat dissipation and dehumidification modes according to the humidity inside the distribution box and can efficiently and stably adjust the internal environment of the box.

[0005] After retrieval, it is found that the prior art publication number is CN118040496A, which discloses a rain-proof distribution box with a dehumidification structure, including: a protective shell, a first telescopic rod and a connecting block are arranged at the upper end inside the protective shell, a fixed plate is arranged at the lower end of the first telescopic rod, a first clamping arm and a second clamping arm are arranged at the left and right ends of the fixed plate, a collection shell is installed at the lower end of the second clamping arm, a filter screen cover is installed at the upper end of the collection shell, a first connecting rod and a transmission rod are arranged at the lower end of the first telescopic rod, the transmission rod is located on the right side of the first connecting rod, and a third connecting rod is connected to the lower end of the first connecting rod, a first motor is installed at the rear side of the transmission rod. This rain-proof distribution box with a dehumidification structure is convenient for disassembling and adding desiccant to dehumidify the inside of the substation box, convenient for maintenance personnel to prevent rain during maintenance in rainy days, convenient for heat dissipation and ventilation of the substation box, at the same time convenient for rain-proofing the inside of the substation box, and convenient for maintenance workers to store tools during maintenance.

[0006] Therefore, based on the above retrieval and combined with the existing ones, when the above scheme is used, it only facilitates rain-proofing the inside of the substation box, and cannot fully dehumidify the inside of the substation box, which has limitations. To solve the problem of insufficient dehumidification, for this reason, we propose a distribution cabinet with a dehumidification structure. Summary of the Invention

[0007] The purpose of the present invention is to provide a distribution cabinet with a dehumidification structure to solve the problems raised in the above background technology.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A power distribution cabinet with a dehumidification structure includes an electric cabinet box. The outer shell of the electric cabinet box is made of a metal material with a certain strength and protection performance. A plurality of heat dissipation holes are opened on both the left and right sides thereof. The size and distribution of these heat dissipation holes are optimized to ensure good heat dissipation efficiency and prevent foreign objects from entering. The outer wall of the electric cabinet box is rotatably connected with a cabinet door through a hinge, and a sealing strip is arranged on the cabinet door to effectively prevent dust and water. The interior of the electric cabinet box is reasonably planned with an installation area. A control module capable of controlling 800V voltage is fixedly installed in the installation area, which can stabilize the 800V voltage within a safe range. An electric switch assembly is fixedly installed inside the installation area. The installation area is equipped with copper busbars. The copper busbars are fixed on the inner wall of the electric cabinet box through insulating brackets and are electrically connected to the control module capable of controlling 800V voltage and the electric switch assembly through special terminal blocks to ensure the stable transmission of current, thereby constructing a complete busbar system. The installation position of the electric switch assembly is convenient for operation and maintenance and maintains a safe distance from other components. A ventilation and circulation mechanism is fixedly installed inside the electric cabinet box. The air duct design of the ventilation and circulation mechanism conforms to the principle of aerodynamics and can achieve efficient air circulation. The inner wall of the electric cabinet box is also fixedly installed with an electric switch assembly;

[0010] The ventilation and circulation mechanism can dissipate heat from the electric switch assembly and the interior of the electric cabinet box. A driving mechanism for converting the wind direction of the ventilation and circulation mechanism is fixedly installed at the bottom end of the inner wall of the electric cabinet box. The air duct design inside the ventilation and circulation mechanism conforms to the principle of aerodynamics and can achieve efficient air circulation. A dehumidification mechanism is fixedly installed inside the electric cabinet box.

[0011] As a further improvement of this solution, the ventilation and circulation mechanism includes a first ventilation round box and a second ventilation round box. The second ventilation round box and the first ventilation round box are both fixedly connected to the inner wall of the electric cabinet box.

[0012] As a further improvement of this solution, second rectangular pipes are fixedly connected to both the left and right ends of the first ventilation round box and the second ventilation round box. Connection boxes are fixedly connected to both the left and right ends of the inner wall of the electric cabinet box. Each connection box is communicated with the corresponding heat dissipation hole. One end of each connection box away from the electric cabinet box is fixedly communicated with the corresponding second rectangular pipe.

[0013] As a further improvement of this solution, first rectangular pipes are fixedly communicated with both the upper and lower ends of the first ventilation round box and the second ventilation round box. A circular ring pipe is rotatably connected to the inside of the first ventilation round box and the second ventilation round box. A matching pipe is fixedly connected to the inside of the circular ring pipe. The two ends of the matching pipe are respectively communicated with the corresponding second rectangular pipes.

[0014] As a further aspect of this solution, a driving motor is fixedly installed inside the mating pipe. The output end of the driving motor is fixedly connected to a fan. The inner wall of the first ventilation round box is also rotatably connected to a rotating frame, and the rotating frame is fixedly connected to the circular ring pipe.

[0015] As a further aspect of this solution, the driving mechanism includes an electric telescopic arm. The electric telescopic arm is fixedly connected to the bottom end of the inner wall of the electric cabinet box. The upper end of the electric telescopic arm is fixedly connected to a first elastic telescopic arm. The upper end of the first elastic telescopic arm is fixedly connected to a connecting arm, and a humidity sensor is fixedly installed inside the connecting arm.

[0016] As a further aspect of this solution, at one end of the first ventilation round box and the second ventilation round box away from the electric cabinet box, a first wire wheel with a reset function is rotatably connected. A second pull rope is wound around the outer wall of the first wire wheel. The free end of each second pull rope is fixedly connected to the bottom of the connecting arm, and each first wire wheel is fixedly connected to the corresponding rotating frame.

[0017] As a further aspect of this solution, the dehumidification mechanism includes a liquid storage tank. The liquid storage tank is fixedly connected to the bottom end of the inner wall of the electric cabinet box. The inside of the liquid storage tank is filled with a high-concentration potassium hydroxide solution. A moving box is slidably connected to the left end of the liquid storage tank. A first rectangular pipe at the bottom of the first ventilation round box and the bottom of the moving box are fixedly connected and communicated through a first connecting pipe. The moving box and the output end of the electric telescopic arm are fixedly connected through a connecting arm, and a splash-proof box is fixedly connected to the upper end of the moving box. The outer wall of the splash-proof box abuts against the outer wall of the liquid storage tank.

[0018] As a further aspect of this solution, a rectangular opening is provided at one end of the liquid storage tank close to the moving box. The rectangular opening is communicated with the moving box. A rotating plate is rotatably connected to the top end of the inner wall of the moving box. Second wire wheels with a reset function are rotatably connected to the front and rear ends of the moving box. The second wire wheels are fixedly connected to the rotating plate. A first pull rope is wound around the outer wall of each second wire wheel, and the free end of the first pull rope is fixedly connected to the outer wall of the liquid storage tank.

[0019] As a further aspect of this solution, a butting plate is fixedly connected to the bottom of the moving box. The outer wall of the butting plate slidably passes through the inside of the electric cabinet box. A push plate is also fixedly connected to the left end of the liquid storage tank. A collection box for storing the discarded potassium hydroxide solution is fixedly connected to the bottom of the electric cabinet box. A pressure relief opening is provided on the outer wall of the collection box. The upper end of the push plate and the collection box are fixedly connected and communicated through a connecting pipe.

[0020] Beneficial Effects

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. When the dehumidification process starts, the moving box that originally abutted against the outer wall of the rectangular opening will disengage, and the abutting plate will tightly abut against the outer wall of the rectangular opening. At this time, gas enters the bottom of the moving box and passes through the potassium hydroxide solution inside the box. Since the potassium hydroxide solution has extremely strong water absorption ability, it can effectively absorb the moisture in the air. Subsequently, the dried gas will pass through the moving box and the splash-proof box in sequence and return to the inside of the electric cabinet box, realizing the cyclic dehumidification and drying of the gas inside the electric cabinet box. This not only greatly reduces the humidity inside the electric cabinet box, effectively avoids problems such as short circuits and corrosion of electrical components caused by moisture, and extends the service life of electrical components, but also through a clever structural design, ensures the orderly flow of gas. Compared with traditional dehumidification devices, it significantly improves the dehumidification efficiency and effectively prevents the risk of electric leakage caused by high humidity for 800-volt voltage.

[0023] 2. This distribution box can automatically sense changes in the internal environment. During non-working hours, it automatically activates the heat dissipation function to quickly disperse the heat inside the box, preventing the temperature of electrical components from being too high due to heat accumulation and effectively extending the service life of the components. When the humidity inside the distribution box rises, the system will automatically switch to the dehumidification mode to quickly reduce the humidity inside the box and avoid safety hazards such as short circuits and electric leakage caused by moisture, ensuring the stable operation of electrical equipment. This automated operation mode that combines heat dissipation and dehumidification not only greatly reduces the manual maintenance cost but also significantly improves the safety and reliability of the operation of the distribution box. Brief Description of the Drawings

[0024] Figure 1 It is the front view of a distribution cabinet with a dehumidification structure;

[0025] Figure 2 It is the schematic diagram of the internal structure of the electric cabinet box of a distribution cabinet with a dehumidification structure;

[0026] Figure 3 It is the schematic diagram of the position structure of the liquid storage tank of a distribution cabinet with a dehumidification structure;

[0027] Figure 4 It is the schematic diagram of the structure of the air exchange and circulation mechanism of a distribution cabinet with a dehumidification structure;

[0028] Figure 5 It is the schematic diagram of the internal structure of the first ventilation round box of a distribution cabinet with a dehumidification structure;

[0029] Figure 6 It is the side view of the first ventilation round box of a distribution cabinet with a dehumidification structure;

[0030] Figure 7 It is the schematic diagram of the structure of the dehumidification mechanism of a distribution cabinet with a dehumidification structure;

[0031] Figure 8Schematic diagram of the internal structure of a mobile box of a power distribution cabinet with a dehumidification structure.

[0032] In the figure: 1, electric cabinet box; 2, cabinet door; 3, nut; 4, collection box; 6, liquid storage tank; 7, air extraction box; 8, main switch assembly; 9, connecting arm; 10, first elastic telescopic arm; 11, electric telescopic arm; 12, connecting box; 13, first ventilation round box; 14, first connecting pipe;

[0033] 15, first rectangular pipe; 16, second rectangular pipe; 17, circular ring pipe; 18, driving motor; 19, fan; 20, mating pipe; 21, second ventilation round box; 22, first wire wheel; 23, abutting plate; 24, second wire wheel; 25, mobile box; 26, first pull rope;

[0034] 27, splash-proof box; 28, push plate; 30, rotating plate; 31, rotating frame; 32, second pull rope; 33, rectangular opening; 101, air exchange and circulation mechanism; 201, driving mechanism; 301, dehumidification mechanism. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment 1: Please refer to Figure 1 - Figure 3As shown in the figure, a power distribution cabinet with a dehumidification structure includes an electric cabinet box 1. The electric cabinet box 1 is made of a metal material with a certain strength and protection performance as the outer shell. A plurality of heat dissipation holes are opened on both the left and right sides of the electric cabinet box 1. The size and distribution of these heat dissipation holes are optimized to ensure good heat dissipation efficiency and prevent foreign objects from entering. The outer wall of the electric cabinet box 1 is rotatably connected to a cabinet door 2 through a hinge. A plurality of nuts 3 are also threadedly connected to both ends of the electric cabinet box 1. When installing the electric cabinet box 1, the staff can fix and install the electric cabinet box 1 on the wall or distribution pile through the nuts 3. A sealing strip is provided on the cabinet door 2, which can effectively prevent dust and water. The interior of the electric cabinet box 1 is reasonably planned with an installation area. A control module capable of regulating 800V voltage is fixedly installed in the installation area, which can stably control the 800V voltage within a safe range. An electric switch assembly 8 is fixedly installed inside the installation area. A control module s for controlling the 800V voltage is fixedly installed in the installation area, which can stabilize the 800V voltage within a safe range. An electric switch assembly 8 is fixedly installed inside the installation area. The installation area is equipped with copper busbars. The copper busbars are fixed to the inner wall of the electric cabinet box 1 through insulating brackets and are electrically connected to the control module for controlling the 800V voltage and the electric switch assembly 8 through special terminal blocks to ensure the stable transmission of current, thereby constructing a complete busbar system. The installation position of the electric switch assembly 8 is convenient for operation and maintenance and maintains a safe distance from other components. A ventilation and circulation mechanism 101 is fixedly installed inside the electric cabinet box 1. The air duct design inside the ventilation and circulation mechanism 101 conforms to the principle of aerodynamics and can achieve efficient air circulation;

[0037] The ventilation and circulation mechanism 101 can dissipate heat from the electric switch assembly 8 and the interior of the electric cabinet box 1. A driving mechanism 201 for changing the wind direction of the ventilation and circulation mechanism 101 is fixedly installed at the bottom end of the inner wall of the electric cabinet box 1. A dehumidification mechanism 301 is fixedly installed inside the electric cabinet box 1.

[0038] Embodiment 2: Please refer to Figure 3 - Figure 6As shown in the figure, the air exchange and circulation mechanism 101 includes a first ventilation round box 13 and a second ventilation round box 21. Both the second ventilation round box 21 and the first ventilation round box 13 are fixedly connected to the inner wall of the electric cabinet box 1 by bolts. At the top of the inner wall of the electric cabinet box 1, an air extraction box 7 is fixedly connected. At the bottom of the air extraction box 7, a plurality of exhaust ports are fixedly communicated. The plurality of exhaust ports can evenly absorb the gas inside the electric cabinet box 1. At the left and right ends of the first ventilation round box 13 and the second ventilation round box 21, second rectangular pipes 16 are fixedly connected. At the left and right ends of the inner wall of the electric cabinet box 1, connection boxes 12 are fixedly connected. Each connection box 12 is communicated with the corresponding heat dissipation hole. At one end of each connection box 12 away from the electric cabinet box 1, it is fixedly communicated with the corresponding second rectangular pipe 16. At the upper and lower ends of the first ventilation round box 13 and the second ventilation round box 21, first rectangular pipes 15 are fixedly communicated. All the second rectangular pipes 16 and the first rectangular pipes 15 are circumferentially distributed on the outer walls of the first ventilation round box 13 and the second ventilation round box 21 respectively, and the second rectangular pipes 16 and the first rectangular pipes 15 are staggered with each other (please refer to Figure 5 and Figure 6 ). Inside the first ventilation round box 13 and the second ventilation round box 21, a circular pipe 17 is also rotatably connected by a rotating shaft. The outer wall of the circular pipe 17 is closely attached to the inner wall of the first ventilation round box 13. Inside the circular pipe 17, a matching pipe 20 is also fixedly connected. The two ends of the matching pipe 20 are respectively communicated with the corresponding second rectangular pipes 16 through the circular pipe 17. Inside the matching pipe 20, a driving motor 18 is fixedly installed. The output end of the driving motor 18 is fixedly connected with a fan 19. Inside the inner wall of the first ventilation round box 13, a rotating frame 31 is also rotatably connected by a rotating shaft. The rotating frame 31 is fixedly connected with the circular pipe 17. The second rectangular pipe 16 at the left end and the first rectangular pipe 15 at the bottom of the second ventilation round box 21 are both fixedly communicated with the air extraction box 7 through pipes;

[0039] Please refer to Figure 3 - Figure 5As shown in the figure, the driving mechanism 201 includes an electric telescopic arm 11. The electric telescopic arm 11 is fixedly connected to the bottom end of the inner wall of the electric cabinet box 1. The upper end of the electric telescopic arm 11 is fixedly connected to a first elastic telescopic arm 10. The upper end of the first elastic telescopic arm 10 is fixedly connected to a connecting arm 9. A humidity sensor is fixedly installed inside the connecting arm 9. One end of each of the first ventilation round box 13 and the second ventilation round box 21 away from the electric cabinet box 1 is rotatably connected by a rotating shaft to a first wire wheel 22 with a reset function. A plurality of weight reduction openings are formed in the outer wall of the first wire wheel 22. The plurality of weight reduction openings are circumferentially distributed on the outer wall of the first wire wheel 22. A first reset torsion spring is clamped between each first wire wheel 22 and the first ventilation round box 13 and the second ventilation round box 21. The first reset torsion spring can drive the first wire wheel 22 to quickly reset. A second pulling rope 32 is wound around the outer wall of the first wire wheel 22. The free end of each second pulling rope 32 is fixedly connected to the bottom of the connecting arm 9. The second pulling rope 32 is made of rubber material and is not easily damaged. Each first wire wheel 22 is fixedly connected to a corresponding rotating frame 31;

[0040] Specifically, the elastic coefficient of the first elastic telescopic arm 10 is greater than that of the first reset torsion spring. When the electric telescopic arm 11 drives the first elastic telescopic arm 10 and the connecting arm 9 to move upward, the connecting arm 9 will pull all the second pulling ropes 32. The second pulling ropes 32 will drive the first wire wheel 22 to rotate. When the first wire wheel 22 rotates, it will drive the first reset torsion spring to rotate and store energy. It should be noted that the length of the second pulling rope 32 pulled is just enough for the first wire wheel 22 to rotate 90 degrees. When the connecting arm 9 continues to drive the first wire wheel 22 to rotate through the second pulling rope 32, the first wire wheel 22 cannot rotate and can only rotate 90 degrees. When the connecting arm 9 continues to pull the second pulling rope 32, the second pulling rope 32 will be stretched;

[0041] Please refer to Figure 2 、 Figure 7 - Figure 8 As shown in the figure, the dehumidifying mechanism 301 includes a liquid storage tank 6. A water injection port is opened at the upper end of the liquid storage tank 6. A sealing cover is threadedly connected to the outer wall of the water injection port. The liquid storage tank 6 is fixedly connected to the bottom end of the inner wall of the electric cabinet box 1. The inside of the liquid storage tank 6 is filled with a high-concentration potassium hydroxide solution. The potassium hydroxide solution has a strong absorption capacity for water. A moving box 25 is slidably connected to the left end of the liquid storage tank 6. The moving box 25 is fixedly connected to the output end of the electric telescopic arm 11 through a connecting rod;

[0042] Specifically, two sliding bars are fixedly connected to the left end of the liquid storage tank 6. The two sliding bars are symmetrically distributed front and back at the left end of the liquid storage tank 6. The moving box 25 is slidably connected to the outer walls of the two sliding bars. When the moving box 25 slides on the outer wall of the liquid storage tank 6 through the two sliding bars, the sliding bars can limit the moving box 25 and also play a guiding role, improving the stability of the moving box 25 during movement. Lubricating oil is applied to the outer walls of the sliding bars and the inside of the moving box 25. The lubricating oil can reduce the friction between the moving box 25 and the sliding bars and extend the service life of the moving box 25 and the sliding bars;

[0043] Moreover, a splash-proof box 27 is fixedly connected to the upper end of the moving box 25 by bolts. The outer wall of the splash-proof box 27 abuts against the outer wall of the liquid storage tank 6. The liquid storage tank 6, the moving box 25, and the splash-proof box 27 are all made of ceramic materials. When water is combined with a high-concentration potassium hydroxide solution, high temperature will be generated. The ceramic material can remain stable at a very high temperature. This high-temperature resistance of the ceramic material is determined by its tight crystal structure and will not soften or deform at high temperatures. During the long-term storage of the high-concentration potassium hydroxide solution, it can effectively prevent the leakage of the solution and the damage of the container. A rectangular opening 33 is provided at one end of the liquid storage tank 6 close to the moving box 25. The rectangular opening 33 communicates with the moving box 25. The top end of the inner wall of the moving box 25 is rotatably connected to a rotating plate 30 by a rotating shaft. A rubber ring is fixedly connected to the outer wall of the rotating plate 30. The rubber ring is made of rubber material. The rubber material has good elasticity and also has good corrosion resistance and high-temperature resistance characteristics, which can enhance the sealing performance between the rotating plate 30 and the inner wall of the moving box 25. Second wire wheels 24 with a reset function are rotatably connected to the front and rear ends of the moving box 25 by rotating shafts. The second wire wheels 24 are fixedly connected to the rotating plate 30. A second return spring is clamped between each second wire wheel 24 and the moving box 25. The second return spring can drive the second wire wheel 24 to quickly reset. The outer wall of each second wire wheel 24 is wound with a first pull rope 26. The free end of the first pull rope 26 is fixedly connected to the outer wall of the liquid storage tank 6. A contact plate 23 is fixedly connected to the bottom of the moving box 25. The outer wall of the contact plate 23 slidably penetrates into the inside of the electrical cabinet 1;

[0044] A first rectangular pipe 15 at the bottom of the first ventilation round box 13 is fixedly connected and communicated with the bottom of the moving box 25 through a first connecting pipe 14. Moreover, the first connecting pipe 14 is made of fluororubber material. Fluororubber has good high-temperature resistance and can generally be used normally in the temperature range of about -20°C to 200°C. It also has good tolerance to strong alkaline substances such as potassium hydroxide solution. A push plate 28 is also fixedly connected to the left end of the liquid storage tank 6. The push plate 28 is located directly above the splash-proof box 27. A collection box 4 for storing the discarded potassium hydroxide solution is fixedly connected to the bottom of the electrical cabinet 1. A pressure relief port is provided on the outer wall of the collection box 4. The upper end of the push plate 28 is fixedly connected and communicated with the collection box 4 through a connecting pipe. The connecting pipe and the first connecting pipe 14 are made of the same material;

[0045] The working principle of the present invention is as follows: When in use, the drive motors 18 inside the first ventilation round box 13 and the second ventilation round box 21 are started, and the drive motors 18 drive the fans 19 to rotate. The fan 19 inside the first ventilation round box 13 will convey the gas on the outer wall of the electric cabinet box 1 to the inside of the electric cabinet box 1 through another second rectangular tube 16 via the second rectangular tube 16, while the fan 19 inside the second ventilation round box 21 will convey the hot air inside the electric cabinet box 1 to the outer wall of the electric cabinet box 1 through another second rectangular tube 16 via the second rectangular tube 16 and the air extraction box 7, completing the heat exchange and heat dissipation of the cold and hot gases, and completing the heat dissipation inside the electric cabinet box 1. When the humidity sensor detects that the humidity inside the electric cabinet box 1 rises, the electric telescopic arm 11 will be automatically started. The electric telescopic arm 11 will drive the first elastic telescopic arm 10 and the connecting arm 9 to move upward. When the connecting arm 9 moves upward, it will pull all the second pull ropes 32. The second pull ropes 32 will drive the first wire wheels 22 and the circular tube 17 to rotate 90 degrees. The circular tube 17 will drive the mating tube 20 to rotate 90 degrees. When the two mating tubes 20 rotate 90 degrees, at this time, the fan 19 inside the first ventilation round box 13 will convey the gas inside the electric cabinet box 1 to the inside of the moving box 25 through the first connecting tube 14;

[0046] It should be noted that when the electric telescopic arm 11 extends upward, the electric telescopic arm 11 will drive the moving box 25 to move upward. When the moving box 25 moves upward, the second wire wheel 24 loses the pulling force of the first pull rope 26, and the second return spring will drive the second wire wheel 24 and the rotating plate 30 to rotate downward. At this time, the moving box 25 is communicated with the splash-proof box 27, and the moving box 25 will disengage from the outer wall of the rectangular opening 33, and the abutting plate 23 will abut against the outer wall of the rectangular opening 33. When the gas enters the bottom of the moving box 25, the gas will pass through the potassium hydroxide solution. Since the potassium hydroxide solution has strong water absorption, it can absorb the moisture in the air. The gas will pass through the inside of the moving box 25 and the splash-proof box 27 and return to the inside of the electric cabinet box 1. The fan 19 inside the second ventilation round box 21 will suck the gas inside the electric cabinet box 1 through the air extraction box 7 and the second rectangular tube 16, and then discharge it from the first rectangular tube 15 at the upper end of the second ventilation round box 21, completing the dehumidification and drying treatment of the gas inside the electric cabinet box 1. When the potassium hydroxide solution absorbs moisture, the liquid level will rise to the inside of the splash-proof box 27;

[0047] When the humidity inside the electric cabinet box 1 decreases, the electric telescopic arm 11 drives the moving box 25 to move upward, and the splash-proof box 27 will move upward. During the movement, the outer wall of the push plate 28 will abut against the inside of the splash-proof box 27 and the moving box 25. At this time, the gas discharged from the first connecting pipe 14 into the inside of the splash-proof box 27 and the moving box 25 will enter the inside of the collection box 4 through the connecting pipe, and the pressure relief port will discharge the gas. During the continuous upward movement of the splash-proof box 27 and the moving box 25, the potassium hydroxide solution will enter the inside of the collection box 4 through the connecting pipe. When the push plate 28 abuts against the bottom end of the inner wall of the moving box 25, the discharge of the waste potassium hydroxide solution can be completed. At this time, the electric telescopic arm 11 will drive the moving box 25 to reset. When the electric telescopic arm 11 drives the moving box 25 to complete the reset, the moving box 25 will communicate with the rectangular opening 33, and the potassium hydroxide solution inside the liquid storage tank 6 will enter the inside of the moving box 25. The second return spring will drive the second wire wheel 24 and the rotating plate 30 to complete the reset, and the rotating plate 30 will block the upper end of the moving box 25;

[0048] The electric telescopic arm 11 will also drive the first elastic telescopic arm 10 and the connecting arm 9 to reset. When the connecting arm 9 moves downward, the second pull rope 32 loses tension, and the first wire wheel 22 drives the circular ring pipe 17 to reset and rotate through the rotating frame 31. The circular ring pipe 17 drives the matching pipe 20 to reset. According to the above, the gas circulation and heat dissipation inside the electric cabinet box 1 can be completed.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A power distribution cabinet with a dehumidification structure, comprising an electric cabinet box (1), characterized in that: The electric cabinet (1) is made of a metal material with a certain strength and protection performance as its outer shell. A plurality of heat dissipation holes are provided on both the left and right sides thereof. The size and distribution of these heat dissipation holes are optimized to ensure good heat dissipation efficiency and prevent foreign objects from entering. The outer wall of the electric cabinet (1) is rotatably connected to a cabinet door (2) through a hinge. A sealing strip is provided on the cabinet door (2) to effectively prevent dust and water. The interior of the electric cabinet (1) is reasonably planned with an installation area. A control module capable of regulating 800V voltage is fixedly provided in the installation area, which can stably control the 800V voltage within a safe range. An electric switch assembly (8) is fixedly installed inside the installation area. The installation area is equipped with copper busbars, and the copper busbars are fixed to the inner wall of the electric cabinet (1) through insulating brackets and are electrically connected to the control module capable of controlling 800V voltage and the electric switch assembly (8) through a special terminal block to ensure stable current transmission, thereby constructing a complete busbar system. The installation position of the electric switch assembly (8) is convenient for operation and maintenance and maintains a safe distance from other components. A ventilation and circulation mechanism (101) is fixedly installed inside the electric cabinet (1). The air duct design of the ventilation and circulation mechanism (101) conforms to the principle of aerodynamics and can achieve efficient air circulation. The inner wall of the electric cabinet (1) is also fixedly installed with an electric switch assembly (8); The ventilation and circulation mechanism (101) can dissipate heat from the electric switch assembly (8) and the interior of the electric cabinet (1). A driving mechanism (201) for changing the air flow direction of the ventilation and circulation mechanism (101) is fixedly installed at the bottom end of the inner wall of the electric cabinet (1). The air duct design inside the ventilation and circulation mechanism (101) conforms to the principle of aerodynamics and can achieve efficient air circulation. A dehumidification mechanism (301) is fixedly installed inside the electric cabinet (1).

2. The power distribution cabinet with a dehumidification structure according to claim 1, wherein: The ventilation and circulation mechanism (101) includes a first ventilation round box (13) and a second ventilation round box (21). Both the second ventilation round box (21) and the first ventilation round box (13) are fixedly connected to the inner wall of the electric cabinet (1).

3. The power distribution cabinet with a dehumidification structure according to claim 2, characterized in that: Second rectangular tubes (16) are fixedly connected to both the left and right ends of the first ventilation round box (13) and the second ventilation round box (21). Connection boxes (12) are fixedly connected to both the left and right ends of the inner wall of the electric cabinet (1). Each connection box (12) is communicated with the corresponding heat dissipation hole. One end of each connection box (12) away from the electric cabinet (1) is fixedly communicated with the corresponding second rectangular tube (16).

4. A power distribution cabinet with a dehumidification structure according to claim 3, characterized in that: First rectangular tubes (15) are fixedly communicated with both the upper and lower ends of the first ventilation round box (13) and the second ventilation round box (21). A circular tube (17) is rotatably connected inside the first ventilation round box (13) and the second ventilation round box (21). A fitting tube (20) is fixedly connected inside the circular tube (17). The two ends of the fitting tube (20) are respectively communicated with the corresponding second rectangular tubes (16).

5. The power distribution cabinet with a dehumidification structure according to claim 4, characterized in that: A driving motor (18) is fixedly installed inside the mating pipe (20). The output end of the driving motor (18) is fixedly connected to a fan (19). A rotating frame (31) is also rotatably connected to the inner wall of the first ventilation round box (13), and the rotating frame (31) is fixedly connected to the circular ring pipe (17).

6. The power distribution cabinet with a dehumidification structure according to claim 1, wherein: The driving mechanism (201) includes an electric telescopic arm (11). The electric telescopic arm (11) is fixedly connected to the bottom end of the inner wall of the electric cabinet box (1). The upper end of the electric telescopic arm (11) is fixedly connected to a first elastic telescopic arm (10). The upper end of the first elastic telescopic arm (10) is fixedly connected to a connecting arm (9). A humidity sensor is fixedly installed inside the connecting arm (9).

7. The power distribution cabinet with a dehumidification structure according to claim 2, characterized in that: At one end of the first ventilation round box (13) and the second ventilation round box (21) away from the electric cabinet box (1), a first wire wheel (22) with a reset function is rotatably connected. A second pull rope (32) is wound around the outer wall of the first wire wheel (22). The free end of each second pull rope (32) is fixedly connected to the bottom of the connecting arm (9). Each first wire wheel (22) is fixedly connected to the corresponding rotating frame (31).

8. The power distribution cabinet with a dehumidification structure according to claim 2, wherein: The dehumidifying mechanism (301) includes a liquid storage tank (6). The liquid storage tank (6) is fixedly connected to the bottom end of the inner wall of the electric cabinet box (1). A moving box (25) is slidably connected to the left end of the liquid storage tank (6). A first rectangular pipe (15) at the bottom of the first ventilation round box (13) and the bottom of the moving box (25) are fixedly connected and communicated through a first connecting pipe (14). The moving box (25) and the output end of the electric telescopic arm (11) are fixedly connected through a connecting arm. And the upper end of the moving box (25) is fixedly connected to a splash-proof box (27). The outer wall of the splash-proof box (27) abuts against the outer wall of the liquid storage tank (6).

9. The power distribution cabinet with a dehumidification structure according to claim 8, wherein: A rectangular opening (33) is formed at one end of the liquid storage tank (6) close to the moving box (25). The rectangular opening (33) is communicated with the moving box (25). A rotating plate (30) is rotatably connected to the top end of the inner wall of the moving box (25). Second wire wheels (24) with a reset function are rotatably connected to the front and rear ends of the moving box (25). The second wire wheels (24) are fixedly connected to the rotating plate (30). A first pull rope (26) is wound around the outer wall of each second wire wheel (24). The free end of the first pull rope (26) is fixedly connected to the outer wall of the liquid storage tank (6).

10. A power distribution cabinet with a dehumidification structure according to claim 9, characterized in that: A butting plate (23) is fixedly connected to the bottom of the moving box (25). The outer wall of the butting plate (23) slidably penetrates through the inside of the electric cabinet box (1). A push plate (28) is also fixedly connected to the left end of the liquid storage tank (6). A collection box (4) for storing the discarded potassium hydroxide solution is fixedly connected to the bottom of the electric cabinet box (1). A pressure relief opening is formed on the outer wall of the collection box (4). The upper end of the push plate (28) and the collection box (4) are fixedly connected and communicated through a connecting pipe.

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