An open distribution box for smart grid

Abstract

This invention relates to the field of power distribution cabinet technology, specifically to an outdoor power distribution box for smart grids, comprising a cabinet body and a cabinet door. A bracket is installed on the top of the inner cavity of the cabinet body. Two inflatable structures are symmetrically installed on both sides of the cabinet body. Each inflatable structure includes two base plates, which are symmetrically fixed to the outer side wall of the cabinet body. A rotating plate is provided on one side of each base plate. This invention uses a mercury-driven structure to sense the temperature of the bracket. When the temperature rises, the mercury expands and drives the push rod to press down. Through a large gear and a large toothed rod, the rotating plate unfolds, allowing the folded bag to draw air from the outside, achieving basic air cooling. When the temperature exceeds a critical point, the push release structure is triggered, and the return spring causes the rotating plate to close quickly, forcing high-pressure airflow into the cooling hole for impact cooling. At the same time, the suction force of the electric fan pulls the piston down, pushing the loop tube to contact the surface of the bracket to start liquid cooling. After the temperature drops, each component automatically resets, completing the cyclical alternating heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, specifically an open-air power distribution box for smart grids. Background Technology

[0002] With the construction of smart grids and the increasing prevalence of outdoor power facilities, outdoor distribution boxes, as key nodes in power distribution, control, and protection, directly affect the reliability of the regional power grid due to their operational stability. However, the outdoor environment is characterized by complex features such as high temperature, high humidity, heavy rainfall, dust storms, and large seasonal temperature differences, posing severe challenges to the heat dissipation performance and environmental adaptability of distribution boxes.

[0003] Traditional heat dissipation solutions have significant limitations: First, passive air cooling relies on natural convection through ventilation holes. In the absence of wind or under high temperatures, the airflow becomes turbulent, resulting in a sharp drop in heat dissipation efficiency and a tendency for heat to accumulate inside the enclosure. Second, they suffer from high energy consumption and limited fan lifespan. Their fixed airflow design can easily clash with natural wind under certain conditions, hindering airflow circulation. Furthermore, placing key components on a tray with a windproof design to prevent moisture buildup can cause hot air to accumulate at the top of the equipment and fail to dissipate. Third, liquid cooling systems rely on external components such as pumps and valves, posing a risk of leakage and requiring continuous energy consumption, making them unsuitable for scenarios without external power sources. Summary of the Invention

[0004] The purpose of this invention is to provide an open-air distribution box for smart grids to address the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an open-air distribution box for a smart grid, comprising a box body and a cabinet door, wherein a bracket is installed on the top of the inner cavity of the box body, and two inflatable structures are symmetrically installed on both sides of the box body; The inflatable structure includes two base plates, which are symmetrically fixed to the outer side wall of the box. Each base plate has a rotating plate on one side. The upper end of the rotating plate and the base plate are jointly mounted with a rotating shaft. A large gear is fixed to the outer wall of both ends of the rotating shaft. The outer wall of the housing has two symmetrically positioned movable cavities. Each movable cavity has a large toothed rod that slides vertically inside it, and each large toothed rod meshes with a large gear at a corresponding position. A return spring is fixedly connected to the lower end of each large toothed rod, and a limiting block is fixedly connected to the upper end of each large toothed rod. A push rod is slidably connected to the upper end of each large toothed rod, and a push-release structure is installed between the push rod and the limiting block. Each of the aforementioned push rods has a mercury-driven structure mounted on its upper end.

[0006] Preferably, two cooling holes are symmetrically opened on both sides of the box body, and each cooling hole is connected to the corresponding air-filling structure. An exhaust pipe is fixedly connected to the upper slot of each cooling hole, and the exhaust pipe is located at the upper end of the box body. A filter screen is installed in the lower slot of each cooling hole. A liquid cooling structure is installed between the two exhaust pipes to cool the upper surface of the bracket.

[0007] Preferably, a folded bladder is fixedly connected between the rotating plate and the bottom plate, and an air intake plate is fixedly connected to the side of the folded bladder away from the rotating shaft. Two symmetrical filter screens are screwed to the inner wall of the box, and each filter screen is connected to the corresponding inflation structure. An electric fan is installed on the side of each filter screen near the bottom plate. A sleeve is fitted on the outer wall of each large gear, and the sleeve is fixedly connected to the outer wall of the box.

[0008] Preferably, the push-release structure includes a slide groove that is slidably connected to the push rod. The slide groove is formed on the upper surface of the limiting block and extends to the lower end of the large toothed rod. A triangular slider is slidably connected to the side surface of the lower end of the push rod, and the triangular slider can slide laterally into the interior of the push rod. A strong spring is fixed between the triangular slider and the push rod. A triangular groove is formed on the inner side wall of the limiting block near the upper groove opening, and the triangular groove is adapted to the triangular slider at the corresponding position.

[0009] Preferably, the mercury-driven structure includes a heat-conducting flow plate, which is disposed at the upper end of the housing. Two symmetrically positioned cooling covers are fixedly connected to the lower end of the heat-conducting flow plate, and the cooling covers are fixedly connected to the upper surface of the bracket. Both cooling covers are connected to exhaust pipes at corresponding positions. An exhaust hole is opened on the side of each cooling cover that is close to each other. An extension pipe is fixedly connected to the upper end of each heat-conducting flow plate. An L-shaped piston tube is fixedly connected to both sides of each extension pipe. The lower end of each L-shaped piston tube is slidably connected to a push rod at a corresponding position. A piston rod is slidably connected laterally inside the cavity of each L-shaped piston tube.

[0010] Preferably, the liquid cooling structure includes two symmetrically positioned movable cylinders. Each movable cylinder is fixedly connected to the upper end of a corresponding exhaust pipe, and each movable cylinder is connected to the corresponding exhaust pipe. A push block is slidably inserted into the upper end of each movable cylinder. A loop-shaped flow tube is fixedly connected between the two push blocks, and the lower end of the loop-shaped flow tube can contact the upper surface of the pull rod. A through hole is opened at the lower end of the loop-shaped flow tube, and the through hole is connected to the exhaust hole. A lifting spring is fixedly connected between the loop-shaped flow tube and the bracket, and the lifting spring passes through the cavity of the through hole.

[0011] Preferably, each push block has a pull rod slidably connected to its lower end, an elastic plate is installed between the pull rod and the push block, and a piston is fixedly connected to the lower end of the pull rod, and the piston can seal between the exhaust pipe and the cooling hole.

[0012] Preferably, the cavity of the loop-shaped flow tube is rotatably connected to a stirring blade, and two symmetrically positioned small gears are fixedly connected to the outer wall of the loop-shaped flow tube. Each small gear is fixedly connected to the stirring blade, and a small toothed rod meshes with the outer wall of each small gear. A sunshade is fixedly connected to the upper end of the two small toothed rods. Two symmetrically positioned support rods are fixedly connected to the outer wall of the upper end of the box, and an elastic rod is fixedly connected between the two ends of each support rod and the sunshade.

[0013] Compared with the prior art, the beneficial effects of the present invention are: The mercury-driven structure senses the temperature change of the bracket, which drives the push rod to press down, causing the large gear to mesh and rotate, controlling the opening and closing of the rotating plate and the base plate, so that the folding bag can achieve air extraction and air exhaust. During normal temperature rise, external cold air is drawn into the box through the electric fan and filter for basic air cooling. When the temperature exceeds the critical point, the release mechanism is triggered to disengage, the reset spring is instantly reset, and the large gear is pushed to move upward. This reverses the drive of the large gear to make the rotating plate and the bottom plate close quickly. The compressed folding bag forces the airflow into the cooling hole at high speed, and through the exhaust pipe, it is guided to the cooling cover to perform impact cooling on the equipment. Furthermore, during the sustained high-temperature phase, after the rotating plate and the base plate close, the electric fan draws in air to create negative pressure, causing the piston to move downwards. This, along with the pull rod and push block, drives the loop-shaped flow tube to contact the bracket surface, activating contact liquid cooling. The stirring blades rotate synchronously to enhance coolant flow. When the sunshade floats up and down in windy and rainy weather, it drives the pinion to rotate via the small gear, further promoting liquid circulation inside the loop-shaped flow tube. The entire system achieves cyclic reset under the action of components such as the reset spring and the lifting spring, forming an adaptive alternating heat dissipation between the air-filled structure and the liquid-cooled structure. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the spiral flow tube of the present invention; Figure 3 This is a cross-sectional view of the folded capsule of the present invention; Figure 4 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the exhaust pipe of the present invention. Figure 6This is a cross-sectional view of the L-shaped piston tube of the present invention. Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle; Figure 8 For the present invention Figure 6 Enlarged view of point C in the middle; Figure 9 This is a schematic diagram showing the connection between the large gear and the large toothed rod after the housing has been removed in this invention. Figure 10 This is a cross-sectional view of the large gear shaft of the present invention; Figure 11 For the present invention Figure 10 Enlarged view of point D in the middle; Figure 12 This is a cross-sectional view of the extension tube of the present invention.

[0015] Explanation of reference numerals in the attached figures: 1. Housing; 2. Turning plate; 3. Base plate; 4. Folding chamber; 5. Suction plate; 6. Shaft; 7. Large gear; 8. Sleeve; 9. Large gear rod; 10. Limiting block; 11. Return spring; 12. Movable cavity; 13. Push rod; 14. Strong spring; 15. Triangular slider; 151. Triangular groove; 16. Slide groove; 17. Cooling hole; 18. Filter screen one; 19. Electric fan; 20. Filter screen two; 21. Exhaust pipe; 22. Piston 1; 23. Cooling cover; 231. Exhaust vent; 24. Heat guide plate; 25. Extension tube; 26. L-shaped piston tube; 27. Piston rod; 28. Pull rod; 281. Elastic plate; 29. ​​Movable cylinder; 30. Push block; 31. U-shaped flow tube; 32. Lifting spring; 33. Stirring blade; 34. Pinion; 341. Pinion; 35. Sunshade; 36. Support rod; 37. Elastic rod; 38. Bracket; 39. Through hole; 40. Cabinet door. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-12 The present invention provides a technical solution: an open-air distribution box for smart grid, including a box body 1 and a cabinet door 40, a bracket 38 is installed on the top of the inner cavity of the box body 1, and two inflatable structures are symmetrically installed on both sides of the box body 1. The inflatable structure includes two base plates 3, which are symmetrically fixed to the outer side wall of the box 1. Each base plate 3 has a rotating plate 2 on one side. The upper ends of the rotating plate 2 and the base plate 3 are jointly equipped with a rotating shaft 6. A large gear 7 is fixed to the outer wall of both ends of the rotating shaft 6. Two symmetrical movable cavities 12 are opened inside the outer wall of the housing 1. A large toothed rod 9 is slidably connected to each cavity 12, and each large toothed rod 9 meshes with a large gear 7 at the corresponding position. A return spring 11 is fixedly connected to the lower end of the large toothed rod 9, and a limiting block 10 is fixedly connected to the upper end of each large toothed rod 9. A push rod 13 is slidably connected to the upper end of each large toothed rod 9, and a push release structure is installed between the push rod 13 and the limiting block 10. Each push rod 13 has a mercury-driven mechanism installed at its upper end.

[0018] In this embodiment, two cooling holes 17 are symmetrically opened on both sides of the box 1, and each cooling hole 17 is connected to the corresponding air-filling structure. An exhaust pipe 21 is fixedly connected to the upper slot of each cooling hole 17, and the exhaust pipe 21 is located at the upper end of the box 1. A filter screen 18 is installed in the lower slot of each cooling hole 17. A liquid cooling structure is installed between the two exhaust pipes 21, which can cool the upper surface of the bracket 38.

[0019] In this embodiment, a folded bladder 4 is fixedly connected between the rotating plate 2 and the bottom plate 3. An air intake plate 5 is fixedly connected to the side of the folded bladder 4 away from the rotating shaft 6. Two symmetrically positioned filter screens 20 are screwed to the inner wall of the box body 1, and each filter screen 20 is connected to the corresponding inflation structure. An electric fan 19 is installed on the side of each filter screen 20 near the bottom plate 3. A housing 8 is fitted on the outer wall of each large gear 7, and the housing 8 is fixedly connected to the outer wall of the box body 1.

[0020] For details, please refer to Figure 3 , Figure 9 and Figure 10When the large gear 9 moves upward, it drives the large gear 7 to rotate clockwise. The clockwise rotation of the large gear 7, in turn, drives the rotating plate 2 to rotate clockwise, while the position of the base plate 3 remains unchanged. This causes the rotating plate 2 to rotate towards the position of the base plate 3 and eventually come into contact with it. During this process, the folding bag 4 folds, expelling the air between the rotating plate 2 and the base plate 3. During the expulsion process, the intake plate 5 has a one-way valve structure with a sway vane, which acts as a one-way seal. At this time, as the rotating plate 2 and the base plate 3 come together, the internal gas of the folding bag 4 is concentrated and pushed towards the position of the electric fan 19 and the cooling hole 17. At the same time, during the gas flow, impurities in the air are filtered by the first filter screen 18 and the second filter screen 20. When the rotating plate 2 and the base plate 3 are in complete contact, the electric fan 19 is no longer connected to the intake plate 5, and the suction force generated by the electric fan 19 will not affect the intake. When plate 5 is opened, the suction force of electric fan 19 acts on cooling hole 17, drawing air into cooling hole 17 and creating a suction effect. At this time, the rotating plate 2 and base plate 3 can only be separated and opened again by rotating the large gear 7 driven by the large gear 9. When the rotating plate 2 is rotated counterclockwise by the large gear 7, the folding bag 4 will draw air outward, and the swing blades will open with the airflow, drawing air into the folding bag 4. At the same time, electric fan 19 also draws air in. When the rotating plate 2 rotates to an 80-degree angle with the base plate 3, if the large gear 9 moves further downward, the push release structure will be triggered, so that the push rod 13 and the push release structure no longer apply downward pressure to the large gear 9, so that the return spring 11 pushes the large gear 9 upward elastically to return to its original position. The large gear 9 drives the large gear 7 to rotate clockwise again. The figure shows the state where the push release structure is about to reach the critical point but has not been triggered.

[0021] In this embodiment, the push release structure includes a slide groove 16 that is slidably connected to the push rod 13. The slide groove 16 is formed on the upper surface of the limiting block 10 and extends to the lower end of the large toothed rod 9. A triangular slider 15 is slidably connected to the side surface of the lower end of the push rod 13, and the triangular slider 15 can be slidably inserted into the interior of the push rod 13. A strong spring 14 is fixed between the triangular slider 15 and the push rod 13. A triangular groove 151 is formed on the inner side wall of the limiting block 10 near the upper groove opening, and the triangular groove 151 is adapted to the triangular slider 15 at the corresponding position.

[0022] Specifically, when the triangular slider 15 is inserted into the triangular groove 151, the push rod 13 moves up and down, causing the limiting block 10 and the large toothed rod 9 to move together. During the downward movement, the return spring 11 is compressed. However, when the large toothed rod 9 moves to... Figure 10In the state shown, the limiting block 10 is restricted by the movable cavity 12 and cannot move further down. At this time, the push rod 13 drives the triangular slider 15 to move downward, which will cause the triangular slider 15 to begin to tilt and slide with the triangular groove 151 and gradually separate from each other. At the same time, the strong spring 14 will also be compressed. When the triangular slider 15 is completely separated from the triangular groove 151, the return spring 11 will perform elastic reset, which will drive the large gear 9 to move upward. During the upward movement of the large gear 9, it will drive the large gear 7 to rotate clockwise, thereby causing the rotating plate 2 and the base plate 3 to come together.

[0023] In this embodiment, the mercury-driven structure includes a heat-conducting plate 24, which is disposed at the upper end of the housing 1. Two symmetrically positioned cooling covers 23 are fixedly connected to the lower end of the heat-conducting plate 24, and the cooling covers 23 are fixedly connected to the upper surface of the bracket 38. At the same time, both cooling covers 23 are connected to the exhaust pipes 21 at corresponding positions. An exhaust hole 231 is opened on the side of the two cooling covers 23 that are close to each other. An extension pipe 25 is fixedly connected to the upper end of each heat-conducting plate 24. An L-shaped piston pipe 26 is fixedly connected to both sides of each extension pipe 25. The lower end of each L-shaped piston pipe 26 is slidably connected to the push rod 13 at the corresponding position. A piston rod 27 is slidably connected laterally inside the cavity of each L-shaped piston pipe 26.

[0024] Both are filled with mercury, while the right side of piston rod 27 is filled with pure water. When cooling cover 23 expands due to heat conducted by bracket 38, it pushes piston rod 27 away from extension tube 25. During the movement of piston rod 27, it pushes the water inside L-shaped piston tube 26, causing the water pressure inside L-shaped piston tube 26 to push push rod 13 downward. The connection between push rod 13 and L-shaped piston tube 26 is a sealed piston. As push rod 13 moves downward, it drives large gear 9 downward through the push release structure. Large gear 9 then drives large gear 7 to rotate, causing folding bag 4 to evacuate air. At the same time, when the internal temperature of heat conduction plate 24 is too high, it will further push push rod 13 downward, causing push trigger structure to disengage triangular slider 15 from triangular groove 151, thereby causing large gear 9 to reset upward and drive large gear 7 to rotate in the opposite direction, thus causing folding bag 4 to move towards the electric fan. Exhaust is vented at positions 19 and 17. Then, air is supplied from 17 to the cooling cover 23 through exhaust pipe 21, thereby simultaneously enhancing air supply and cooling to the interior of the housing 1 and the upper end of the bracket 38. When the temperature at the cooling cover 23 drops, the heat conduction plate 24 also cools down, causing the piston rod 27 in the L-shaped piston tube 26 to reset. Then, the L-shaped piston tube 26 pulls the push rod 13 upward, causing the triangular slider 15 to re-insert into the triangular groove 151 for connection. If the temperature sensed by the cooling cover 23 does not exceed the critical point, causing the trigger structure to separate from the limit block 10, the distance between the rotating plate 2 and the bottom plate 3 will continuously change through the push rod 13 during the temperature change of the cooling cover 23. During the change, the folding bag 4 will continuously draw in and release air, thereby increasing the air intake inside the housing 1 and improving the heat dissipation effect.

[0025] In this embodiment, the liquid cooling structure includes two symmetrically positioned movable cylinders 29. Each movable cylinder 29 is fixedly connected to the upper end of the exhaust pipe 21 at the corresponding position, and each movable cylinder 29 is connected to the exhaust pipe 21 at the corresponding position. A push block 30 is slidably inserted into the upper end of each movable cylinder 29. A loop-shaped flow tube 31 is fixedly connected between the two push blocks 30, and the lower end of the loop-shaped flow tube 31 can contact the upper surface of the pull rod 28. A through hole 39 is opened at the lower end of the loop-shaped flow tube 31, and the through hole 39 is connected to the exhaust hole 231. A lifting spring 32 is fixedly connected between the loop-shaped flow tube 31 and the bracket 38, and the lifting spring 32 passes through the cavity of the through hole 39.

[0026] In this embodiment, each push block 30 is slidably connected to a pull rod 28 at its lower end. An elastic sheet 281 is installed between the pull rod 28 and the push block 30. A piston 22 is fixedly connected to the lower end of the pull rod 28, and the piston 22 can block the space between the exhaust pipe 21 and the cooling hole 17.

[0027] In this embodiment, a stirring blade 33 is rotatably connected inside the cavity of the loop tube 31. Two small gears 34 are fixedly connected to the outer wall of the loop tube 31, and each small gear 34 is fixedly connected to the stirring blade 33. A small toothed rod 341 meshes with the outer wall of each small gear 34. A sunshade 35 is fixedly connected to the upper end of the two small toothed rods 341. Two symmetrical support rods 36 are fixedly connected to the outer wall of the upper end of the housing 1. An elastic rod 37 is fixedly connected between the two ends of each support rod 36 and the sunshade 35.

[0028] Specifically, when the inflation structure releases air into the cooling hole 17, the sudden increase in air pressure inside the cooling hole 17 will push the piston 22 upward. (Refer to...) Figure 4 Piston 22 is positioned between the exhaust pipe 21 and the cooling hole 17. When airflow is delivered from the cooling hole 17 to the exhaust pipe 21, piston 22 moves upward, connecting the cooling hole 17 to the exhaust pipe 21. Simultaneously, the elastic plate 281 is compressed. Since the elastic plate 281 has low elasticity, the airflow delivered by the folding bladder 4 to the cooling hole 17 is sufficient to push piston 22 upward. After piston 22 is pushed upward, the cooling hole 17 connects to the exhaust pipe 21, allowing gas to be delivered to the interior of the cooling cover 23 for cooling. However, if the temperature of the bracket 38 is too high, causing a large air exchange between the cooling hole 17 and the interior of the cooling cover 23 via the mercury-driven structure, the rotating plate 2 and the base plate 3 will close. At this point, the electric fan 19 cannot draw air from the suction plate 5 and will instead draw air from the cooling hole 17. Piston 22 will then be drawn towards the cooling hole 17. (Reference) Figure 4At this point, the pull rod 28 is at its lowest point inside the push block 30. When the piston 22 is pulled downwards, it will drive the push block 30 and the loop tube 31 downwards together, so that the loop tube 31 gradually contacts the upper surface of the bracket 38, allowing the loop tube 31 to directly conduct heat and dissipate heat for the bracket 38. At the same time, when the piston 22 moves to the chamber of the cooling hole 17, the chamber of the cooling hole 17 is larger than the size of the exhaust pipe 21. This means that when the exhaust pipe 21 is inserted into the interior of the cooling hole 17, the suction force generated inside the cooling hole 17 will draw air through the exhaust pipe 21 to the position of the cooling cover 23, and then the cooling cover 23 will then draw air through the exhaust pipe 21 to the position of the cooling cover 23. A small amount of air is drawn from the exhaust port 231 to the through hole 39. The through hole 39 is located at the center of the lower end of the loop tube 31, and the distance between the loop tube 31 and the bracket 38 is only about one centimeter. This causes the cool air in contact with the bracket 38 to flow, improving the cooling efficiency of the bracket 38 and carrying away accumulated heat. Furthermore, the chamber of the cooling cover 23 is much larger than the space between the loop tube 31 and the bracket 38, so the gas passing through the cooling cover 23 does not significantly affect the temperature of the heat-conducting plate 24. Then, when the cooling port 17 draws air from the exhaust pipe... After the internal intake of 21, the lifting spring 32 will again drive the return tube 31, push block 30 and piston 22 to rise again. During the downward movement of the return tube 31, the sliding of the pinion 34 on the pinion 341 will cause the pinion 34 and the stirring blade 33 to rotate, thereby causing the stirring blade 33 to stir the coolant inside the return tube 31, improving the flow of the coolant inside the return tube 31 and preventing heat from accumulating at the lower end of the return tube 31. This process is repeated until the temperature on the bracket 38 drops to a safe value, and the heat will be transferred through the cooling cover 23 chamber to the mercury inside the heat conduction plate 24. As the temperature drops, the L-shaped piston tube 26 drives the push rod 13 to move upward, causing the triangular slider 15 on the release structure to re-insert into the triangular groove 151, thus completing the cycle. Then, after the cooling performance of the liquid cooling structure decreases, the L-shaped piston tube 26 will push the push rod 13 downward again, causing the push rod 13 to drive the large gear 7 to rotate through the large gear rod 9, thereby causing the folding bag 4 to unfold and evacuate air again, thus executing the inflation structure to cool the bracket 38 and the inside of the box 1 again. This process is repeated to achieve the alternating use of the inflation structure and the liquid cooling structure to improve the heat dissipation of the box 1 and the bracket 38, thereby improving the heat dissipation efficiency. The sunshade 35 normally shelters the equipment below from wind and rain, but when abnormal weather occurs, the sunshade 35 floats up and down. The sunshade 35 will move up and down on the support rod 36 via the elastic rod 37. During the movement, the small toothed rod 341 will slide on one side of the small gear 34, thereby causing the small gear 34 to drive the stirring blade 33 to rotate, improving the internal flow of the loop tube 31 and thus improving the cooling effect.

[0029] Working principle: When the temperature of the equipment on the bracket 38 inside the housing 1 rises, the heat is conducted to the heat conduction plate 24, causing the mercury inside to expand due to heat. This pushes the piston rod 27 inside the L-shaped piston tube 26 to move, which in turn causes the push rod 13 to press down via hydraulic pressure. This causes the large gear rod 9 to move down and compress the return spring 11. At the same time, the large gear rod 9 drives the large gear 7 to rotate, causing the rotating plate 2 to unfold relative to the bottom plate 3. This stretches the folding bag 4 to draw in air from the outside, which is then sent into the housing 1 through the electric fan 19 and the filter screen 20 for basic heat dissipation. If the temperature continues to rise to a critical point, the expansion force of the mercury increases, causing the push rod 13 to move down and triggering the push release mechanism. The return spring 11 is released instantaneously, pushing the large gear rod 7 to rotate. As rod 9 moves upward, it reverses the drive of large gear 7, causing rotating plate 2 and base plate 3 to close quickly. The compressed folding bladder 4 forces gas into cooling hole 17 at high speed. The airflow is guided through exhaust pipe 21 to cooling cover 23, which impacts and cools bracket 38. Then, when rotating plate 2 and base plate 3 close, the suction of electric fan 19 creates negative pressure in cooling hole 17, causing piston 1 22 to move downward. Through pull rod 28, it drives loop tube 31 to move downward and contact the surface of bracket 38, activating contact liquid cooling. At the same time, stirring blade 33 rotates to enhance the fluidity of coolant. After the temperature drops, mercury contracts, and all components are reset under the action of return spring 11 and lifting spring 32, completing the alternating cycle of heat dissipation of the gas-filled structure and liquid-cooled structure.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An open-air distribution box for a smart grid, comprising a box body (1) and a cabinet door (40), wherein a bracket (38) is installed on the top of the inner cavity of the box body (1), characterized in that: Two inflatable structures are symmetrically installed on both sides of the box (1); The inflatable structure includes two base plates (3), which are symmetrically fixed to the outer side wall of the box (1). Each base plate (3) has a rotating plate (2) on one side. The upper ends of the rotating plate (2) and the base plate (3) are jointly equipped with a rotating shaft (6). A large gear (7) is fixed to the outer wall of both ends of the rotating shaft (6). The outer wall of the housing (1) has two symmetrically positioned movable cavities (12). Each movable cavity (12) has a large toothed rod (9) that slides vertically inside it. Each large toothed rod (9) meshes with a large gear (7) at the corresponding position. A return spring (11) is fixedly connected to the lower end of each large toothed rod (9). A limiting block (10) is fixedly connected to the upper end of each large toothed rod (9). A push rod (13) is slidably connected to the upper end of each large toothed rod (9). A push-release structure is installed between the push rod (13) and the limiting block (10). Each of the push rods (13) has a mercury-driven structure mounted on its upper end.

2. An open-air distribution box for a smart grid according to claim 1, characterized in that: The box (1) has two cooling holes (17) symmetrically opened on both sides, and each cooling hole (17) is connected to the corresponding air filling structure. Each cooling hole (17) has an exhaust pipe (21) fixedly connected to the upper slot, and the exhaust pipe (21) is set at the upper end of the box (1). Each cooling hole (17) has a filter screen (18) installed in the lower slot. A liquid cooling structure is installed between the two exhaust pipes (21) to cool the upper surface of the bracket (38).

3. An open-air distribution box for a smart grid according to claim 1, characterized in that: A folded bladder (4) is fixedly connected between the rotating plate (2) and the bottom plate (3). An air intake plate (5) is fixedly connected to the side of the folded bladder (4) away from the rotating shaft (6). Two symmetrical filter screens (20) are screwed to the inner wall of the box (1). Each filter screen (20) is connected to the corresponding inflation structure. An electric fan (19) is installed on the side of each filter screen (20) near the bottom plate (3). A sleeve (8) is fitted on the outer wall of each large gear (7). The sleeve (8) is fixedly connected to the outer wall of the box (1).

4. An open-air distribution box for a smart grid according to claim 1, characterized in that: The push release structure includes a slide groove (16) that is slidably connected to the push rod (13). The slide groove (16) is opened on the upper surface of the limiting block (10) and extends to the lower end of the large toothed rod (9). A triangular slider (15) is slidably connected to the side surface of the lower end of the push rod (13), and the triangular slider (15) can slide laterally into the interior of the push rod (13). A strong spring (14) is fixed between the triangular slider (15) and the push rod (13). A triangular groove (151) is opened on the inner side wall of the limiting block (10) near the upper groove opening, and the triangular groove (151) is adapted to the triangular slider (15) at the corresponding position.

5. An open-air distribution box for a smart grid according to claim 2, characterized in that: The mercury-driven structure includes a heat-conducting plate (24), which is located at the upper end of the housing (1). The lower end of the heat-conducting plate (24) is fixedly connected to two symmetrically positioned cooling covers (23), and the cooling covers (23) are fixedly connected to the upper surface of the bracket (38). At the same time, both cooling covers (23) are connected to the exhaust pipes (21) at corresponding positions. An exhaust hole (231) is opened on the side of the two cooling covers (23) that are close to each other. The upper end of each heat-conducting plate (24) is fixedly connected to an extension pipe (25), and both sides of each extension pipe (25) are fixedly connected to an L-shaped piston pipe (26). The lower end of each L-shaped piston pipe (26) is slidably connected to the push rod (13) at the corresponding position. A piston rod (27) is slidably connected laterally inside the cavity of each L-shaped piston pipe (26).

6. An open-air distribution box for a smart grid according to claim 5, characterized in that: The liquid cooling structure includes two symmetrically positioned movable cylinders (29). Each movable cylinder (29) is fixed to the upper end of the corresponding exhaust pipe (21), and each movable cylinder (29) is connected to the corresponding exhaust pipe (21). A push block (30) is slidably inserted into the upper end of each movable cylinder (29). A loop-shaped flow tube (31) is fixedly connected between the two push blocks (30), and the lower end of the loop-shaped flow tube (31) can contact the upper surface of the pull rod (28). A through hole (39) is opened at the lower end of the loop-shaped flow tube (31), and the through hole (39) is connected to the exhaust hole (231). A lifting spring (32) is fixedly connected between the loop-shaped flow tube (31) and the bracket (38), and the lifting spring (32) passes through the cavity of the through hole (39).

7. An open-air distribution box for a smart grid according to claim 6, characterized in that: Each push block (30) has a pull rod (28) slidably connected to its lower end. An elastic plate (281) is installed between the pull rod (28) and the push block (30). A piston (22) is fixedly connected to the lower end of the pull rod (28), and the piston (22) can block the exhaust pipe (21) and the cooling hole (17).

8. An open-air distribution box for a smart grid according to claim 7, characterized in that: The cavity of the spiral tube (31) is rotatably connected to a stirring blade (33). Two small gears (34) are fixedly connected to the outer wall of the spiral tube (31), and each small gear (34) is fixedly connected to the stirring blade (33). A small toothed rod (341) meshes with the outer wall of each small gear (34). The upper ends of the two small toothed rods (341) are fixedly connected to a sunshade (35). Two symmetrical support rods (36) are fixedly connected to the outer wall of the upper end of the box (1). An elastic rod (37) is fixedly connected between the two ends of each support rod (36) and the sunshade (35).

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