A moisture-proof and dehumidifying branch box for use in the field

Abstract

This invention belongs to the field of cable branch box technology and discloses a moisture-proof and dehumidifying branch box for outdoor use. It includes a box body with a waterproof platform fixed to the bottom. A door is hinged to the side wall of the box body. Mounting brackets are fixed to the inner cavity of the box body both horizontally and vertically. A canopy is provided above the box body. By using a combination of T-shaped pipes, cross-shaped pipes, and air collection pipes, icing is avoided, ensuring stable dehumidification and heat dissipation functions. A dual-pipeline system is provided: the T-shaped pipes and cross-shaped pipes form a hot air path, installed near electrical components to draw in hot air; the air collection pipe and a second, angled air inlet form a cold air path, drawing in air from the bottom area of ​​the box wall where humidity is highest. Driven by natural wind in the field, the T-shaped pipes and cross-shaped pipes move up and down, increasing the range of hot and cold air intake. Finally, condensation is generated and liquid water is discharged, achieving efficient dehumidification.

Description

Technical Field

[0001] This invention belongs to the field of cable branch box technology, specifically a moisture-proof and dehumidifying branch box for use in the field. Background Technology

[0002] The main function of a cable distribution box is to safely and conveniently distribute the power from a main cable to multiple branch cables through the terminals inside the box, supplying different power areas or users. The box provides a centralized and enclosed installation space for cable joints and connecting components, facilitating the inspection, maintenance and operation of the lines by electrical personnel. In the field, the moisture-proof and dehumidification function of the distribution box is particularly important to ensure the normal use and service life of the electrical components inside the box.

[0003] The prior art document with publication number CN117117739B discloses a cable branch box with moisture-proof function, including a cable branch box body, a door, a first partition plate, a second partition plate, a moisture absorption mechanism, and a lifting mechanism. The left and right sides of the front of the cable branch box body are connected to the door by hinges. The first partition plate is connected between the lower parts of the left and right inner walls of the cable branch box body, and the second partition plate is connected between the upper parts of the left and right inner walls. The lower part of the cable branch box body is equipped with a moisture absorption mechanism. This device uses a double-layer design of double-layer bamboo charcoal box, and then uses a heating plate to dry the bamboo charcoal in the lower layer. This not only allows the bamboo charcoal to be reused, but also improves the convenience of replacing the bamboo charcoal. Furthermore, by cooperating with a water collection tank and a main switch, the device is prevented from being flooded by water, thus improving the moisture-proof effect.

[0004] Although the above-mentioned device uses bamboo charcoal to adsorb and dehumidify, and uses a heating plate to dry and reuse the lower layer of bamboo charcoal, water vapor is generated during the drying process, which increases the temperature of the box and is not conducive to the heat dissipation of the branch box. The commonly used dehumidification and heat dissipation devices usually use semiconductor cooling chips. When powered on, one end cools and the other end dissipates heat. The cold end is in close contact with the aluminum heat dissipation fins inside the box. When the humid air encounters the cold fins, it condenses into water. The hot end is led to the outside of the box through a superconducting heat dissipation pipe and dissipated by a finned heat sink, thereby actively capturing the moisture inside the box and dissipating heat at the same time. However, under abnormal operating conditions, when the surface temperature of the cold end fins is below zero degrees, the temperature of the air layer in contact with the fins also drops below the freezing point. The moisture will directly condense from the gaseous state into solid ice crystals, covering the fins and affecting the normal dehumidification function. Summary of the Invention

[0005] The purpose of this invention is to provide a moisture-proof and dehumidifying branch box for outdoor use that is highly efficient in dehumidification and heat dissipation and automatically removes condensation, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a moisture-proof and dehumidifying branch box for outdoor use, comprising a box body, a waterproof platform fixedly connected to the bottom of the box body, a box door hinged to the side wall of the box body, mounting brackets fixedly connected to the inner cavity of the box body both horizontally and vertically, a canopy provided above the box body, and further comprising: a temperature balancing mechanism located on the lower side of the box body; and an automatic dehumidification mechanism connected to the temperature balancing mechanism.

[0007] The temperature balancing mechanism includes a cross tube and a T-shaped tube that are slidably sleeved in the middle of the horizontal mounting frame. The cross tube and the T-shaped tube are detachably connected by nuts, and both have several first air inlets at their bottoms for absorbing hot air. The cross tube and the T-shaped tube are detachably connected by nuts and are slidably sleeved on the horizontal and vertical mounting frames inside the housing. The several first air inlets at the bottom are responsible for drawing in the hot air generated by the operation of the electrical components.

[0008] Preferably, the temperature balancing mechanism further includes support columns fixedly connected to the four corners of the top of the box, the top of the support columns being fixedly connected to the inside of the canopy, and a waterproof membrane being fixedly connected to the inside of each of the four support columns; the material of the waterproof membrane allows air to pass through normally while moisture is blocked outside, so the air entering the box is dry air, effectively ensuring that the inside of the box is dry after dehumidification.

[0009] Preferably, a wind impeller is rotatably connected to the middle of the canopy, and a reciprocating groove sleeve is fixed to the bottom of the wind impeller, the reciprocating groove sleeve rotatably passing through the top of the housing.

[0010] Preferably, the inner cavity of the reciprocating groove sleeve is slidably connected to a vertical rod via a round-headed protrusion, and the bottom of the vertical rod is fixed to the upper side of the T-shaped tube.

[0011] Preferably, a vent pipe is fixedly connected to the bottom of the cross tube by bolts, and a flexible hose is fixedly connected to the lower side of the vent pipe. The flexible hose is fixedly connected to an outer cover by an air pump, and the outer cover is fixedly connected to the lower side of the inner cavity of the box.

[0012] Preferably, a thermoelectric cooler is fixed to the lower side wall of the housing, a first fin is fixed to the outer side of the thermoelectric cooler, a fan is fixed to the outer side of the first fin, both the thermoelectric cooler and the fan are connected to the power supply of the housing, and a second fin is fixed to the inner side of the thermoelectric cooler, and the second fin is located in the inner cavity of the outer cover; moisture in the hot and humid air condenses on the second fin, then gathers and drips to the bottom of the outer cover for discharge, while the heat dissipation end of the thermoelectric cooler continuously conducts heat through the first fin, and finally accelerates heat dissipation through the first fin, thereby achieving the purpose of continuous dehumidification and heat dissipation inside the housing, and by continuously drawing air from the area with the largest temperature difference inside the housing, the uniformity of the internal temperature of the housing can be effectively balanced.

[0013] Preferably, a bottom plate is fixed to the lower end of the box body, and the bottom plate has holes and slots at its edges. A U-shaped drainage channel is connected to the bottom of the bottom plate, and the U-shaped drainage channel is connected to the outside through a drainage pipe.

[0014] Preferably, the automatic dehumidification mechanism includes an air collection pipe fixedly connected to both ends of the air vent pipe, and a plurality of second air inlets are provided obliquely above a pair of air collection pipes, with the second air inlets facing the inner wall of the housing.

[0015] Preferably, each of the vertical mounting brackets has a long strip plate slidingly abutting against its inner side, and a double-groove plate is slidably connected to the middle of each of the two long strip plates. The sidewalls of the double-groove plates are fixed to the mounting bracket. Each of the long strip plates has a pair of silicone scrapers fixed to the side of the long strip plate closest to the housing. Both sides of the long strip plate are rotatably connected to the air collection pipe through a support plate.

[0016] Preferably, both sides of the double-groove plate are slidably connected to push-pull rods via rubber sliding columns, and the ends of a pair of push-pull rods are provided with elongated grooves. The middle edge of the long strip plate is slidably connected to the elongated grooves via a fixed shaft. A connecting rod is fixedly connected to the middle of the pair of push-pull rods, and the push-pull rods are elastically connected to the long strip plate via the connecting rod.

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

[0018] This invention avoids icing by using a combination of T-shaped tubes, cross tubes, and air collection tubes, ensuring stable dehumidification and heat dissipation. It features a dual-pipeline system: the T-shaped tubes and cross tubes form a hot path, installed near electrical components to draw in hot air; the air collection tube and a second, angled air inlet form a cold path, drawing in air from the bottom of the chamber where humidity is highest. Driven by natural wind, the vertical rod moves the T-shaped tubes and cross tubes up and down, increasing the range of hot and cold air intake. Finally, the air converges through a flexible hose at the cold fins of the semiconductor cooling chip, where condensation is generated and liquid water is discharged, resulting in highly efficient dehumidification.

[0019] During the dehumidification process, the waterproof membrane ensures that the enclosure is supplied with dry air. Combined with the second fins and fan heat dissipation that are close to the enclosure wall, it not only increases the temperature of the rear enclosure wall but also prevents the accumulation of hot air inside the enclosure, effectively balancing the temperature difference. This reduces the possibility of spontaneous condensation on the enclosure wall, freeing the enclosure installed in the field from moisture problems.

[0020] This invention, through the combination of a long strip plate, a push-pull rod, and a rubber sliding column, facilitates the one-way scraping of condensation that may occur on the chamber wall. During the reciprocating movement of the air collecting pipe, the long strip plate moves synchronously. When the long strip plate moves upward, the resistance of the rubber sliding column causes the push-pull rod to move upward with a delay. The fixed shaft slides to the top of the long waist groove, pressing down the edge of the long strip plate. The silicone scraper on the other side curls up and separates from the chamber wall. When the long strip plate moves downward, the resistance of the rubber sliding column causes the push-pull rod to move downward with a delay, ultimately causing the edge of the long strip plate to move upward. The silicone scraper on the other side presses down against the chamber wall. The silicone scraper does not contact the chamber wall when it rises, but scrapes away water droplets by adhering to the chamber wall when it descends, thus removing condensation in real time and unidirectionally, further improving the dryness inside the chamber. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a rear-view stereoscopic structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram showing the structural fit between the mounting bracket and the long strip plate of the present invention;

[0024] Figure 4 For the present invention Figure 3 A magnified view of the structure at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the side cross-section structure of the present invention;

[0026] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point B in the middle;

[0027] Figure 7 This is a top-section structural diagram of the present invention;

[0028] Figure 8 This is a schematic diagram showing the structural fit between the cross tube and the T-shaped tube of the present invention;

[0029] Figure 9 This is a schematic diagram showing the structural fit between the rubber sliding column and the double-groove plate of the present invention;

[0030] Figure 10 This is a schematic diagram showing the structural fit between the connecting rod and the push-pull rod of the present invention;

[0031] Figure 11 This is a schematic diagram showing the structural fit between the silicone scraper and the housing of the present invention;

[0032] Figure 12 For the present invention Figure 11 A magnified schematic diagram of the structure at point C in the middle;

[0033] Figure 13 For the present invention Figure 11 A magnified schematic diagram of the structure at point D in the middle;

[0034] Figure 14 This is a schematic diagram showing the structural fit between the fixed shaft and the long strip plate of the present invention;

[0035] Figure 15 This is a schematic diagram showing the structural fit between the U-shaped drainage channel and the base plate of the present invention.

[0036] In the picture:

[0037] 100. Enclosure; 200. Waterproof platform; 300. Enclosure door; 400. Rain canopy; 500. Temperature balancing mechanism; 510. First fin; 520. Fan; 530. Drain pipe; 540. Outer cover; 550. Flexible hose; 560. Vent pipe; 570. Cross tube; 580. T-tube; 590. First air inlet; 5100. Vertical rod; 5110. Reciprocating sleeve; 5120. Fan impeller; 5130. Support column; 5140. Waterproof membrane; 5150. Base plate ; 5160, U-shaped drainage channel; 5170, semiconductor cooling chip; 5180, second fin; 5190, round head protrusion; 5200, air pump; 600, automatic dehumidification mechanism; 610, silicone scraper; 620, long strip plate; 630, double groove plate; 640, push-pull rod; 650, air collection pipe; 660, second air inlet; 670, support plate; 680, long waist slide groove; 690, rubber slide column; 6100, connecting rod; 6110, fixed shaft; 700, mounting bracket. Detailed Implementation

[0038] 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.

[0039] like Figures 1 to 15 As shown, the present invention provides a moisture-proof and dehumidifying branch box for outdoor use, including a box body 100, a waterproof platform 200 fixedly connected to the bottom of the box body 100, a box door 300 hinged to the side wall of the box body 100, mounting brackets 700 fixedly connected to the inner cavity of the box body 100 in both the horizontal and vertical directions, a canopy 400 provided on the top of the box body 100, and further including: a temperature balancing mechanism 500 located on the lower side of the box body 100; and an automatic dehumidification mechanism 600 connected to the temperature balancing mechanism 500.

[0040] The temperature balancing mechanism 500 includes a cross tube 570 and a T-shaped tube 580 that are slidably sleeved in the middle of the horizontal mounting bracket 700. The cross tube 570 and the T-shaped tube 580 are detachably connected by a nut, and both have several first air inlets 590 at their bottoms for absorbing hot air.

[0041] The above-mentioned scheme employs a cross tube 570 and a T-shaped tube 580 that are detachably connected by nuts and slidably fitted onto the horizontal and vertical mounting brackets 700 inside the housing 100. Several first air inlets 590 at the bottom draw in hot air generated by the operation of electrical components. The automatic dehumidification mechanism 600 and the temperature balancing mechanism 500 are linked in power and function. The temperature balancing mechanism 500 utilizes dual pipelines to simultaneously adsorb hot air and humid cold air, performing dehumidification and heat dissipation. Simultaneously, it drives the automatic dehumidification mechanism 600 to remove any condensation that may form on the housing walls, keeping the interior of the housing 100 dry.

[0042] like Figures 3 to 6 As shown, the temperature balancing mechanism 500 also includes support sleeves 5130 fixedly connected to the four corners of the top of the housing 100. The tops of the support sleeves 5130 are all fixed to the inside of the canopy 400, and waterproof membranes 5140 are fixed to the inside of each of the four support sleeves 5130. A fan impeller 5120 is rotatably connected to the middle of the canopy 400. A reciprocating groove sleeve 5110 is fixed to the bottom of the fan impeller 5120. The reciprocating groove sleeve 5110 rotatably passes through the top of the housing 100. A vertical rod 5100 is slidably connected to the inner cavity of the reciprocating groove sleeve 5110 through a round-headed protrusion 5190. The bottom of the vertical rod 5100 is fixed to the upper side of the T-shaped tube 580.

[0043] like Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, a vent pipe 560 is bolted to the bottom of the cross tube 570. A hose 550 is fixedly connected to the lower side of the vent pipe 560. The hose 550 is fixedly connected to an outer cover 540 via an air pump 5200. The outer cover 540 is fixedly attached to the lower side of the inner cavity of the housing 100. A semiconductor cooling chip 5170 is fixedly attached to the lower side wall of the housing 100. A first fin 510 is fixedly attached to the outer side of the semiconductor cooling chip 5170. A fan 520 is fixedly attached to the outer side of the first fin 510. The thermoelectric cooler 5170 and the fan 520 are both connected to the power supply of the housing 100. The thermoelectric cooler 5170 has a second fin 5180 fixed to its inner side, and the second fin 5180 is located in the inner cavity of the outer cover 540. The bottom end of the housing 100 is fixed to a bottom plate 5150. The bottom plate 5150 has holes and slots on its edges. The bottom of the bottom plate 5150 is connected to a U-shaped drainage channel 5160, which is connected to the outside through a drain pipe 530.

[0044] The above solution employs a waterproof membrane 5140 made of polyvinylidene fluoride (PVDF), whose micropores provide liquid resistance and breathability. As gas is continuously extracted from the interior of the housing 100, air is introduced into the housing 100 through the support sleeves 5130 at the four corners of the top. Because the waterproof membrane 5140 allows for normal air passage while trapping moisture, the air entering the housing 100 is dry, effectively ensuring the interior remains dry. Driven by outdoor wind, the impeller 5120 rotates, and under the pressure of the reciprocating sleeve 5110 and the rounded protrusion 5190, the vertical rod 5100, T-shaped tube 580, and cross tube 570 move synchronously up and down. This continuously draws away hot air from near the electrical components, which then flows into the ventilation pipe 560. In addition, the second air inlet 660 on the air collecting pipe 650, facing the side wall of the housing 100, continuously draws in cold air near the inner wall of the housing 100, which is then drawn into the vent pipe 560. The hot air in the middle of the housing 100 and the humid, cold air at the bottom of the housing are then pumped into the outer casing 540 through the hose 550. The humid, cold air, after being mixed with the hot air, also gains a certain temperature, becoming humid, warm air, which effectively prevents the semiconductor cooling chip 5170 from icing.

[0045] like Figure 4 , Figures 10 to 15 As shown, the automatic dehumidification mechanism 600 includes an air collection pipe 650 fixedly connected to both ends of the vent pipe 560. Several second air inlets 660 are provided diagonally above a pair of air collection pipes 650, and the second air inlets 660 face the inner wall of the housing 100. Long strips 620 are slidably abutted against the inner side of the vertical mounting bracket 700. Double-groove plates 630 are slidably connected to the middle of each of the two long strips 620. The sidewalls of the double-groove plates 630 are fixed to the mounting bracket 700. A pair of silicone scrapers are fixedly attached to the side of each long strip 620 near the housing 100. Both sides of the plate 610 and the long strip plate 620 are rotatably connected to the air collection pipe 650 through the support plate 670; both sides of the double groove plate 630 are slidably connected to the push-pull rod 640 through the rubber sliding column 690, and the ends of the pair of push-pull rods 640 are provided with long waist grooves 680. The middle edge of the long strip plate 620 is slidably connected to the long waist groove 680 through the fixed shaft 6110. The middle of the pair of push-pull rods 640 is fixedly connected to the connecting rod 6100, and the push-pull rod 640 is elastically connected to the long strip plate 620 through the connecting rod 6100.

[0046] Using the above scheme: When the long strip 620 moves upward, the push-pull rod 640, driven by the rubber slide column 690, experiences relatively high resistance while being pulled within the double-groove plate 630. Therefore, the fixed shaft 6110 slides to the top of the long waist groove 680. At this time, the edge of the long strip 620 is pressed down, and under the lever principle, the silicone scraper 610 on the other side tilts upward, causing the support plate 670 to move upward, causing the silicone scraper 610 to tilt upward away from the side wall of the box 100. When the long strip 620 moves downward, the push-pull rod 640 is also delayed due to the resistance of the rubber slide column 690. At this time, the fixed shaft 6110 slides downward within the long waist groove 680. The end of the long strip 620 is pushed upward, and similarly, the silicone scraper 610 on the other end is pressed down, with its end abutting against the inner wall of the box 100, scraping away the condensation generated on the box wall. The silicone scraper 610 rises without contacting the box wall, and descends while adhering to the box wall to scrape away water droplets, removing condensation in real time in one direction, reducing humidity, and extending the service life of electrical components.

[0047] Working principle and usage process of this invention:

[0048] In operation, hot air is first drawn in. The wind in the field blows the impeller 5120, causing it to rotate. The impeller 5120 then drives the reciprocating sleeve 5110 to rotate. Inside the sleeve 5110, the reciprocating sleeve 5110 continuously presses against the rounded protrusion 5190. Due to the limiting effect of the reciprocating sleeve 5110, the vertical rod 5100 slides up and down within the sleeve 5110, thus synchronously moving the lower T-shaped tube 580 and cross tube 570 up and down. The first air inlet 590 located below the T-shaped tube 580 and cross tube 570 remains above the electrical components during movement. Therefore, under the action of the lower air pump 5200, hot air near the electrical components is continuously drawn away and collected into the ventilation pipe 560.

[0049] When humid and cold air is drawn in, the vent pipe 560 and the collecting pipe 650 move up and down synchronously with the cross pipe 570. The second air inlet 660 on the collecting pipe 650, facing the side wall of the housing 100, continuously draws in the cold air near the inner wall of the housing 100, which also flows into the vent pipe 560. Then, the hot air in the middle of the housing 100 and the humid and cold air at the bottom of the housing wall are pumped into the outer cover 540 through the hose 550. The humid and cold air also has a certain temperature after being mixed with the hot air, becoming humid and hot air, which can effectively prevent the icing of the thermoelectric cooler 5170. When the humid and hot air reaches the second fin 5180 of the cold end of the thermoelectric cooler 5170, the moisture in the humid and hot air condenses on the second fin 5180, then collects and drips to the bottom of the outer cover 540, flows into the U-shaped drain groove 5160, and finally is discharged outside the housing through the drain pipe 530. Meanwhile, the heat dissipation end of the semiconductor cooling chip 5170 continuously conducts heat through the first fin 510, and finally accelerates heat dissipation through the first fin 510, achieving the purpose of continuous dehumidification and heat dissipation inside the cabinet 100. By continuously drawing air from the area with the largest temperature difference inside the cabinet 100, the uniformity of the internal temperature of the cabinet 100 can be effectively balanced, effectively reducing the possibility of spontaneous condensation on the cabinet walls and the outside due to temperature differences. Furthermore, as the gas inside the cabinet 100 is continuously drawn out, air is introduced into the cabinet 100 through the support sleeves 5130 at the four corners of the top. Because the material of the waterproof membrane 5140 allows air to pass through normally while moisture is intercepted, the air entering the cabinet 100 is dry air, effectively ensuring that the inside of the cabinet 100 is dry.

[0050] Inside the cable distribution box, the walls in contact with the external environment, especially at night, on rainy days, or in winter, can be much colder than the air temperature inside. When humid air comes into contact with these low-temperature walls, the temperature drops sharply, causing moisture to condense. The bottom of the box 100 is usually the coldest area with the most severe condensation. This condensation can be actively removed by physical scraping. As the air collecting pipe 650 moves up and down, the support plate 670 simultaneously drives the long strip plate 620 to move up and down, sliding within the double-groove plate 630. Specifically, since the edge of the long strip 620 is sleeved with a push-pull rod 640 through a fixed shaft 6110, and the end of the push-pull rod 640 slides in the double groove plate 630 through a rubber slide column 690, the resistance of the push-pull rod 640 being pulled in the double groove plate 630 by the rubber slide column 690 is relatively large whenever the support plate 670 drives the long strip 620 to move upward. Therefore, when the fixed shaft 6110 slides to the top of the long waist groove 680, the spring is in a stretched state. At this time, the edge of the long strip 620 is pressed down. Under the action of the lever principle, the silicone scraper 610 on the other side of the long strip 620 tilts upward, so that when the support plate 670 moves upward, it drives the silicone scraper 610 to tilt upward away from the side wall of the box 100 and does not scrape the side wall. Next, as the elongated plate 620 moves downward, the push-pull rod 640 also moves with a delay due to the resistance of the rubber slide column 690. At this time, when the fixed shaft 6110 slides downward in the long waist groove 680, and the spring is compressed and blocked, the end of the elongated plate 620 is pushed upward. Similarly, the silicone scraper 610 at the other end is pressed down, with its end abutting against the inner wall of the box 100, constantly scraping the condensation generated on the box wall downward. The condensation flows through the holes and slots of the bottom plate 5150 into the U-shaped drainage channel 5160, and finally is discharged through the drain pipe 530. This device does not use an additional power source. It uses natural wind power to drive the first air inlet 590 and the second air inlet 660 to move back and forth in the designated area, increasing the air extraction range, and the silicone scraper 610 scrapes away the condensation, further reducing the humidity inside the box and effectively protecting the electrical components.

[0051] 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.

[0052] 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. A moisture-proof and dehumidifying branch box for outdoor use, comprising a box body (100), a waterproof platform (200) fixedly connected to the bottom of the box body (100), a box door (300) hinged to the side wall of the box body (100), mounting brackets (700) fixedly connected to the inner cavity of the box body (100) in both the horizontal and vertical directions, and a canopy (400) provided on the top of the box body (100), characterized in that: Also include: temperature balancing mechanism (500), the temperature balancing mechanism (500) is located in the lower side of the box (100); Automatic dehumidification mechanism (600), the automatic dehumidification mechanism (600) is connected with temperature balancing mechanism (500); Wherein, the temperature balancing mechanism (500) includes sliding sleeve in the middle part of the cross pipe (570) and T-shaped pipe (580) of horizontal installation frame (700), the cross pipe (570) and T-shaped pipe (580) are detachably connected through the screw cap, and the bottom of both is provided with a plurality of first air inlet (590) for absorbing hot air; The bottom of the cross pipe (570) is fixedly connected with the air pipe (560) through the bolt, the automatic dehumidification mechanism (600) includes the air collecting pipe (650) fixedly connected with both ends of the air pipe (560), a pair of the air collecting pipe (650) is obliquely provided with a plurality of second air inlets (660) above, and the second air inlet (660) is towards the inner wall of the box (100); The inner side of the vertical installation frame (700) is slidably connected with the long strip plate (620), the middle part of the two long strip plates (620) is slidably connected with the double groove plate (630), the sidewall of the double groove plate (630) is fixedly connected with the installation frame (700), the side of the long strip plate (620) close to the box (100) is fixedly connected with a pair of silica gel scraper (610), and the two sides of the long strip plate (620) are rotatably connected with the air collecting pipe (650) through the supporting plate (670).

2. A moisture-proof and dehumidifying branch box used in the field according to claim 1, characterized in that: The temperature balancing mechanism (500) further includes the support sleeve column (5130) fixedly connected with the four corners of the top of the box (100), the top of the support sleeve column (5130) is fixedly connected with the inner side of the rain shed (400), and the inner side of the four support sleeve columns (5130) is provided with a waterproof film (5140).

3. A moisture-proof and dehumidifying branch box used in the field according to claim 2, characterized in that: The middle part of the rain shed (400) is rotatably connected with the fan wheel (5120), the bottom of the fan wheel (5120) is fixedly connected with the reciprocating groove sleeve (5110), and the reciprocating groove sleeve (5110) is rotatably penetrated into the top of the box (100).

4. A moisture-proof and dehumidifying branch box used in the field according to claim 3, characterized in that: The inner cavity of the reciprocating groove sleeve (5110) is slidably connected with the vertical rod (5100) through the round head bump (5190), and the bottom of the vertical rod (5100) is fixedly connected with the upper side of the T-shaped pipe (580).

5. A moisture-proof and dehumidifying branch box used in the field according to claim 4, characterized in that: The lower side of the air pipe (560) is fixedly connected with the hose (550), the hose (550) is fixedly connected with the outer cover (540) through the air pump (5200), and the outer cover (540) is fixedly connected with the inner cavity of the box (100).

6. A moisture-proof and dehumidifying branch box for field use according to claim 5, characterized by: The lower end of the box (100) is fixedly connected with the semiconductor refrigerating sheet (5170), the outer side of the semiconductor refrigerating sheet (5170) is fixedly connected with the first fin (510), the outer side of the first fin (510) is fixedly connected with the fan (520), the semiconductor refrigerating sheet (5170) and the fan (520) are in communication with the power supply of the box (100), the inner side of the semiconductor refrigerating sheet (5170) is fixedly connected with the second fin (5180), and the second fin (5180) is located in the inner cavity of the outer cover (540).

7. A moisture-proof and dehumidifying branch box used in the field according to claim 6, characterized in that: The lower end of the box (100) is fixedly connected with a bottom plate (5150), holes are formed in the edges of the bottom plate (5150), the bottom of the bottom plate (5150) is communicated with a U-shaped drainage groove (5160), and the U-shaped drainage groove (5160) is communicated with the outside through a drain pipe (530).

8. The moisture-proof and dehumidifying branch box used in the field according to claim 1, characterized in that: The two sides of the double-groove plate (630) are slidably connected with push-pull rods (640) through rubber slide columns (690), long-waisted slide grooves (680) are formed in the ends of the push-pull rods (640), the middle edges of the long strip plates (620) are slidably connected in the long-waisted slide grooves (680) through fixed shafts (6110), and the middle parts of the push-pull rods (640) are fixedly connected with a connecting rod (6100), and the push-pull rods (640) are elastically connected with the long strip plates (620) through the connecting rod (6100).

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