Electric power intelligent power distribution cabinet with built-in circulating ventilation system

Abstract

The invention provides an electric power intelligent power distribution cabinet with a built-in circulating ventilation system, and relates to the technical field of electric power intelligent power distribution cabinets, the electric power intelligent power distribution cabinet comprises a cabinet body, a cabinet door and an air cooling heat dissipation mechanism installed in the cabinet body, the cabinet door is rotatably connected to the side part of the cabinet body, and two groups of symmetrically arranged separation frames are vertically and fixedly arranged in the cabinet body; and water-cooling heat dissipation mechanisms are assembled on the two groups of separation frames. Compared with the prior art, the cabinet has the following beneficial effects that the flowing speed of air in the cabinet body can be increased through all-directional blowing of the air-cooling heat dissipation mechanism, on one hand, heat generated by electrical elements in the cabinet is directly taken away, and on the other hand, heat exchange between the air in the cabinet body and the water-cooling heat dissipation mechanism can be accelerated, so that a synergistic heat dissipation effect is formed by air cooling and water cooling; an efficient built-in circulating ventilation and heat dissipation system is constructed in the cabinet body, and the overall heat dissipation efficiency is far higher than that of a single air cooling or water cooling structure.

Description

Technical Field

[0001] This invention relates to an intelligent power distribution cabinet with a built-in circulating ventilation system, belonging to the technical field of intelligent power distribution cabinets. Background Technology

[0002] As the core equipment for power distribution and control in power systems, distribution cabinets are widely used in various scenarios such as industrial production, building construction, and power transmission. Intelligent distribution cabinets, in particular, have become the mainstream due to their intelligent monitoring and control functions. The interior of a distribution cabinet contains a large number of electrical components, including circuit breakers, contactors, relays, and transformers. These components continuously generate heat during operation. If this heat cannot be dissipated effectively and promptly, the internal temperature of the cabinet will continue to rise. This not only reduces the efficiency of the electrical components but also accelerates their aging, shortens their lifespan, and in severe cases, can lead to short circuits, fault tripping, and other problems, affecting the stable operation of the entire power system.

[0003] In existing technologies, the heat dissipation methods of power distribution cabinets are mostly single air-cooling or simple water-cooling structures. The cooling fans of air-cooling are mostly installed at a fixed angle, which can only blow air to cool a local area inside the cabinet. The heat dissipation range is limited, and dead corners are easily formed inside the cabinet, resulting in poor heat dissipation effect. Water-cooling has low cooling medium circulation efficiency, and the cooling pipes do not have a dedicated auxiliary heat dissipation structure. The cooling medium does not cool down in time after heat exchange, resulting in a significant reduction in the energy efficiency of water-cooling. Although some power distribution cabinets have both air-cooling and water-cooling structures, the two are independent and lack a coordinated design, which cannot form an integrated circulating ventilation and heat dissipation system. The overall heat dissipation efficiency is difficult to meet the heat dissipation requirements of high-load operation of intelligent power distribution cabinets. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an intelligent power distribution cabinet with a built-in circulating ventilation system.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A smart power distribution cabinet with a built-in circulating ventilation system includes a cabinet body, a cabinet door, and a wind-cooled heat dissipation mechanism installed inside the cabinet body. The cabinet door is rotatably connected to the side of the cabinet body. Two sets of partitions are vertically fixed inside the cabinet body and are symmetrically arranged. Water-cooled heat dissipation mechanisms are mounted on the two sets of partitions.

[0007] The air-cooled heat dissipation mechanism includes a mounting plate fixed to the top center of the cabinet. The bottom of the mounting plate is provided with an inclined U-shaped mounting base. A horizontally arranged frame is rotatably connected inside the U-shaped mounting base. Fixed shafts are symmetrically fixed on both sides of the frame. The frame is rotatably engaged with the U-shaped mounting base through the fixed shafts. A housing is provided inside the frame. A motor is installed inside the housing. The output end of the motor extends to the bottom of the housing, and a heat dissipation fan blade is fixed on the output end of the motor.

[0008] Preferably, fixed shafts two are symmetrically fixed on the other two sides of the frame. The housing is rotatably connected to the frame through the fixed shafts two. The motor one is a dual-shaft motor. A transmission gear is fixed on the top output end of the motor one. A gear one meshes with one side of the transmission gear. The gear one passes through and is rotatably connected to a rotating shaft one that rotatably engages with the housing. A gear two is fixed on the rotating shaft one and above the gear one. A driven gear meshes with one side of the gear two. A transmission shaft is fixed at the top axis of the driven gear. The end of the transmission shaft away from the driven gear extends to the outside of the housing.

[0009] Preferably, the top of the U-shaped mounting base is fixed with a fan-shaped slider, and the bottom of the mounting plate is provided with an annular groove. The fan-shaped slider is embedded in the annular groove and slides in cooperation with the mounting plate.

[0010] Preferably, a toothed ring is fixedly sleeved in the middle of the mounting plate, a third gear meshes on one side of the toothed ring, and a linkage shaft is fixedly provided at the bottom of the third gear. The linkage shaft passes through the fan-shaped slider and the U-shaped mounting seat in sequence and is movably engaged with both.

[0011] Preferably, the bottom end of the linkage shaft is laterally rotatably connected to a universal joint, and the other end of the universal joint is movably connected to the top end of the drive shaft. Bearing 1 is embedded in both the fan-shaped slider and the U-shaped mounting seat, and the linkage shaft passes through the bearing 1 and is fixedly engaged with the inner ring of the bearing 1.

[0012] Preferably, the water-cooled heat dissipation mechanism includes a condenser tube assembly one and a condenser tube assembly two. The condenser tube assembly one and the condenser tube assembly two are respectively installed inside two sets of partitions. The bottom ends of the condenser tube assembly one and the condenser tube assembly two extend to the bottom of the cabinet. The water outlet end of the condenser tube assembly one is connected to a cooling pipe, and the end of the cooling pipe away from the condenser tube assembly one is connected to the water inlet end of the condenser tube assembly two.

[0013] Preferably, a circulation pump is installed at the bottom of the cabinet body, the outlet of the circulation pump is connected to the inlet of the first condenser tube assembly, and the inlet of the circulation pump is connected to the outlet of the second condenser tube assembly.

[0014] Preferably, a cover is fixed at the bottom of the cabinet body, the cover is fitted onto the outer surface of the cooling pipe, and several evenly distributed fans are installed inside the cover and above the cooling pipe.

[0015] Preferably, bushings are movably fitted on both sides inside the housing. The bushings are fitted onto the outer surface of the cooling pipe. Side plates are fixedly fitted onto the outer surface of the bushings. A shaft is rotatably connected laterally between the two sets of side plates and above the cooling pipe. Several movable shafts are vertically fixed on the shaft. The number of movable shafts corresponds one-to-one with the number of fans. The bottom end of the movable shaft is connected to the fan at the corresponding position for driving the fan to rotate.

[0016] A bevel gear is fixed at the top of the movable shaft, and an inner bevel gear ring is fixed inside the cover. The number of inner bevel gear rings is matched with the number of bevel gears, and the bevel gears mesh with the corresponding inner bevel gear rings.

[0017] Preferably, the bushing is movably fitted with the cover via bearing two. A gear four is fixedly sleeved on the outer surface of one set of bushings, and a gear five meshes with the bottom of the gear four. A motor two is installed on one side inside the cover, and the output end of the motor two is connected to the shaft of the gear five for driving the gear five to rotate.

[0018] The beneficial effects of this invention are:

[0019] The air-cooled heat dissipation mechanism uses the power transmission of a dual-axis motor, combined with gear meshing, universal joint connection, and sliding and rotating fits to achieve 360° horizontal rotation and pitch angle adjustment of the cooling fan blades. This allows the cooling fan blades to blow air and dissipate heat from all directions inside the cabinet, completely eliminating heat dissipation dead zones and significantly improving the coverage of air-cooled heat dissipation.

[0020] The water-cooling heat dissipation mechanism uses a circulating pump to achieve closed-loop circulation of the cooling medium within the condenser tube assembly 1, the cooling tube, and the condenser tube assembly 2, ensuring continuous heat exchange of the cooling medium. At the same time, the fan assembly installed inside the casing can provide targeted airflow to the cooling tube to assist in heat dissipation, accelerate the cooling speed of the cooling medium within the cooling tube, improve the circulation heat dissipation efficiency of the cooling medium, and significantly enhance the water-cooling heat dissipation effect.

[0021] The all-around airflow of the air-cooled heat dissipation mechanism can accelerate the airflow speed inside the cabinet. On the one hand, it can directly remove the heat generated by the electrical components inside the cabinet. On the other hand, it can accelerate the heat exchange between the air inside the cabinet and the water-cooled heat dissipation mechanism, so that air cooling and water cooling can form a synergistic heat dissipation effect. A highly efficient built-in circulating ventilation and heat dissipation system is built inside the cabinet, and the overall heat dissipation efficiency is far higher than that of a single air-cooled or water-cooled structure.

[0022] The partition design provides a stable mounting base for the condenser coil assembly and also rationally divides the internal space of the cabinet, facilitating air circulation and heat exchange. The overall structure is compact and rationally laid out, adapting to the internal installation requirements of intelligent power distribution cabinets. Through efficient circulating ventilation and heat dissipation, the internal temperature of the cabinet can be stably controlled within a reasonable range, effectively preventing problems such as reduced efficiency and accelerated aging of electrical components due to high temperatures. This significantly extends the service life of the electrical components inside the cabinet, while reducing electrical faults caused by high temperatures, thus improving the overall operational reliability and stability of the intelligent power distribution cabinet. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of an intelligent power distribution cabinet with a built-in circulating ventilation system according to the present invention;

[0025] Figure 2 This is a bottom view of the cabinet in a smart power distribution cabinet with a built-in circulating ventilation system according to the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of the partition in a smart power distribution cabinet with a built-in circulating ventilation system according to the present invention;

[0027] Figure 4 This is one of the structural schematic diagrams of the air-cooled heat dissipation mechanism in a smart power distribution cabinet with a built-in circulating ventilation system according to the present invention;

[0028] Figure 5 This is the second schematic diagram of the air-cooled heat dissipation mechanism in a smart power distribution cabinet with a built-in circulating ventilation system according to the present invention;

[0029] Figure 6 This is a cross-sectional view of the housing of a smart power distribution cabinet with a built-in circulating ventilation system according to the present invention.

[0030] Figure 7 This is a schematic diagram of the connection and transmission structure between the linkage shaft and the transmission shaft in a smart power distribution cabinet with a built-in circulating ventilation system according to the present invention.

[0031] Figure 8 This is a schematic diagram of the water-cooled heat dissipation mechanism in a smart power distribution cabinet with a built-in circulating ventilation system according to the present invention.

[0032] Figure 9This is a schematic diagram of the meshing between a bevel gear and an inner bevel gear ring in a smart power distribution cabinet with a built-in circulating ventilation system according to the present invention.

[0033] Figure 10 This is a schematic diagram of the circulating connection structure of the water-cooled heat dissipation mechanism in a smart power distribution cabinet with a built-in circulating ventilation system according to the present invention.

[0034] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Partition; 4. Mounting plate; 5. U-shaped mounting base; 6. Frame; 7. Fixed shaft one; 8. Housing; 9. Dual-shaft motor; 10. Fixed shaft two; 11. Transmission gear; 12. Gear one; 13. Rotating shaft one; 14. Gear two; 15. Driven gear; 16. Transmission shaft; 17. Sector-shaped slider; 18. Annular slide groove; 19. Gear ring; 20. Gear three; 21. Linkage shaft; 22. Universal joint; 23. Condenser pipe assembly one; 24. Condenser pipe assembly two; 25. Cooling pipe; 26. Circulation pump; 27. Cover; 28. Fan; 29. ​​Bushing; 30. Side plate; 31. Shaft; 32. Movable shaft; 33. Bevel gear; 34. Internal bevel gear ring; 35. Gear four; 36. Gear five; 37. Motor two; 38. Cooling fan blades. Detailed Implementation

[0035] 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.

[0036] Please see Figure 1-10 The present invention provides a technical solution for a smart power distribution cabinet with a built-in circulating ventilation system, including a cabinet body 1, a cabinet door 2 and a wind-cooled heat dissipation mechanism installed inside the cabinet body 1. The cabinet door 2 is rotatably connected to the side of the cabinet body 1. Two sets of partitions 3 are vertically fixed inside the cabinet body 1 and are symmetrically arranged. Water-cooled heat dissipation mechanisms are mounted on the two sets of partitions 3.

[0037] The air-cooled heat dissipation mechanism includes a mounting plate 4 fixedly installed in the middle of the top of the cabinet 1. The bottom of the mounting plate 4 is provided with an inclined U-shaped mounting seat 5. A horizontally arranged frame 6 is rotatably connected inside the U-shaped mounting seat 5. Fixed shafts 7 are symmetrically fixed on both sides of the frame 6. The frame 6 is rotatably engaged with the U-shaped mounting seat 5 through the fixed shafts 7. A housing 8 is provided inside the frame 6. A motor 9 is installed inside the housing 8. The output end of the motor 9 extends to the bottom of the housing 8, and a heat dissipation fan blade 38 is fixed on the output end of the motor 9.

[0038] See Figure 1-10The frame 6 has two fixed shafts 10 symmetrically fixed on its other two sides. The housing 8 is rotatably connected to the frame 6 through the fixed shafts 10. The motor 9 is a dual-shaft motor. A transmission gear 11 is fixed on the top output end of the motor 9. A gear 12 meshes with one side of the transmission gear 11. The gear 12 passes through and is rotatably connected to a rotating shaft 13 that rotatably engages with the housing 8. A gear 14 is fixed on the rotating shaft 13 and above the gear 12. A driven gear 15 meshes with one side of the gear 14. A transmission shaft 16 is fixed at the top axis of the driven gear 15. The end of the transmission shaft 16 away from the driven gear 15 extends to the outside of the housing 8.

[0039] See Figure 1-10 The top of the U-shaped mounting base 5 is fixedly provided with a fan-shaped slider 17, and the bottom of the mounting plate 4 is provided with an annular groove 18. The fan-shaped slider 17 is embedded in the annular groove 18 and slides in cooperation with the mounting plate 4. A toothed ring 19 is fixedly sleeved in the middle of the mounting plate 4. A gear 20 meshes with one side of the toothed ring 19. A linkage shaft 21 is fixedly provided at the bottom of the gear 20. The linkage shaft 21 passes through the fan-shaped slider 17 and the U-shaped mounting base 5 in sequence and moves in cooperation with both. A universal joint 22 is laterally rotatably connected to the bottom end of the linkage shaft 21. The other end of the universal joint 22 is movably connected to the top end of the drive shaft 16. A bearing is embedded in both the fan-shaped slider 17 and the U-shaped mounting base 5. The linkage shaft 21 passes through the bearing and is fixedly cooperated with the inner ring of the bearing.

[0040] The mounting plate 4 of the air-cooled heat dissipation mechanism is fixedly installed in the middle of the top of the cabinet 1 by bolts. The U-shaped mounting base 5 is set at an angle below the mounting plate 4. The fan-shaped slider 17 at the top of the U-shaped mounting base 5 is embedded in the annular groove 18 at the bottom of the mounting plate 4, so as to realize the sliding cooperation between the U-shaped mounting base 5 and the mounting plate 4, and enable the U-shaped mounting base 5 to rotate horizontally around the axis of the mounting plate 4.

[0041] The frame 6 is rotatably connected to the inside of the U-shaped mounting base 5 via two fixed shafts 7 on both sides, allowing the frame 6 to rotate around the fixed shafts 7. The housing 8 is rotatably connected to the inside of the frame 6 via two other fixed shafts 10 on both sides, allowing the housing 8 to rotate around the fixed shafts 10. The motor 9 installed inside the housing 8 is a dual-axis motor. The cooling fan blades 38 fixed at its bottom output end provide air cooling power for the cabinet, while the top output end provides transmission power for the multi-dimensional rotation of the air cooling mechanism.

[0042] After motor 9 starts, the bottom output directly drives the cooling fan blades 38 to rotate at high speed, generating airflow. At the same time, the top output drives the transmission gear 11 to rotate. The transmission gear 11 meshes with gear 12, driving the rotating shaft 13 and gear 24 to rotate synchronously. Gear 214 meshes with the driven gear 15, driving the driven gear 15 and the transmission shaft 16 to rotate. The transmission shaft 16 is connected to the linkage shaft 21 through a universal joint 22. The universal joint 22 is designed to adapt to the angle changes of the transmission shaft 16 during the follow-up process, ensuring stable power transmission. The linkage shaft 21 rotates under the drive of the transmission shaft 16. The gear 3 20 at its top meshes with the gear ring 19 on the mounting plate 4. Since the gear ring 19 is fixed, when gear 3 20 rotates, it will drive itself and the linkage shaft 21 to make a circumferential motion along the gear ring 19. This will then drive the U-shaped mounting base 5 to slide in the annular groove 18 through the fan-shaped slider 17, realizing the horizontal rotation of the U-shaped mounting base 5 and driving the cooling fan blades 38 to rotate horizontally 360°.

[0043] While the U-shaped mounting base 5 rotates horizontally, the frame 6 can pitch around the fixed axis 7, and the housing 8 can rotate around the fixed axis 10. In conjunction with the high-speed rotation of the cooling fan blades 38, the cooling fan blades 38 can blow air into the cabinet 1 from all directions and at multiple angles, accelerating the airflow speed inside the cabinet and directly carrying away the heat generated by the electrical components.

[0044] See Figure 1-10 The water-cooled heat dissipation mechanism includes a first condenser tube assembly 23 and a second condenser tube assembly 24. The first condenser tube assembly 23 and the second condenser tube assembly 24 are respectively installed inside two sets of partitions 3. The bottom ends of the first condenser tube assembly 23 and the second condenser tube assembly 24 extend to the bottom of the cabinet 1. The outlet end of the first condenser tube assembly 23 is connected to a cooling pipe 25. The end of the cooling pipe 25 away from the first condenser tube assembly 23 is connected to the inlet end of the second condenser tube assembly 24. A circulation pump 26 is installed at the bottom of the cabinet 1. The outlet end of the circulation pump 26 is connected to the inlet end of the first condenser tube assembly 23. The inlet end of the circulation pump 26 is connected to the outlet end of the second condenser tube assembly 24. A cover 27 is fixed at the bottom of the cabinet 1. The cover 27 is fitted onto the outer surface of the cooling pipe 25. Several evenly distributed fans 28 are installed inside the cover 27 and above the cooling pipe 25.

[0045] The condenser tube assembly 1 23 and condenser tube assembly 24 of the water-cooled heat dissipation mechanism are respectively snapped and fixed inside the two sets of partitions 3. The tubes are arranged in a serpentine shape to increase the contact area with the air inside the cabinet 1 and improve the heat exchange efficiency. The water outlet of condenser tube assembly 1 23 is connected to one end of cooling tube 25, and the other end of cooling tube 25 is connected to the water inlet of condenser tube assembly 24. The water inlet of condenser tube assembly 1 23 is connected to the water outlet of circulating pump 26, and the water outlet of condenser tube assembly 24 is connected to the water inlet of circulating pump 26, forming a closed cooling medium circulation loop. The cooling medium is deionized water or special coolant.

[0046] See Figure 1-10 Both sides of the inner side of the cover 27 are movably fitted with bushings 29. The bushings 29 are fitted onto the outer surface of the cooling pipe 25. The outer surface of the bushings 29 is fixedly fitted with side plates 30. A shaft 31 is rotatably connected between the two sets of side plates 30 and above the cooling pipe 25. Several movable shafts 32 are vertically fixed on the shaft 31. The number of movable shafts 32 corresponds one-to-one with the number of fans 28. The bottom end of the movable shaft 32 is connected to the corresponding fan 28 for driving the fan 28 to rotate.

[0047] A bevel gear 33 is fixedly mounted at the top of the movable shaft 32. An inner bevel gear ring 34 is fixedly mounted inside the cover 27. The number of inner bevel gear rings 34 matches the number of bevel gears 33, and the bevel gears 33 mesh with the corresponding inner bevel gear rings 34. The bushing 29 is movably fitted with the cover 27 through a bearing 2. A gear 4 35 is fixedly sleeved on the outer surface of one set of bushings 29. A gear 5 36 meshes with the bottom of the gear 4 35. A motor 2 37 is installed on one side inside the cover 27. The output end of the motor 2 37 is connected to the shaft of the gear 5 36 for driving the gear 5 36 to rotate.

[0048] After the circulating pump 26 starts, it drives the cooling medium to continuously circulate in the loop composed of condenser tube assembly 23, cooling tube 25, condenser tube assembly 24 and circulating pump 26. When the cooling medium flows in condenser tube assembly 23 and condenser tube assembly 24, it exchanges heat with the hot air inside the cabinet 1, absorbs heat and raises its own temperature. The heated cooling medium flows into the cooling tube 25. At this time, motor 2 37 starts and drives gear 5 36 to rotate. Gear 5 36 meshes with gear 4 35, which drives the bushing 29 to rotate around the cooling tube 25, thereby driving the side plate 30, shaft 31 and movable shaft 32 to make circular motion.

[0049] During the circular motion of the movable shaft 32, the bevel gear 33 at its top continuously meshes with the fixed inner bevel gear ring 34, causing the bevel gear 33 to drive the movable shaft 32 to rotate. The movable shaft 32 then drives the fan 28 to rotate at high speed, and the resulting airflow blows directly onto the cooling pipe 25, accelerating the airflow around the cooling pipe 25 and quickly carrying away the heat of the cooling medium inside the cooling pipe 25. After the cooling medium cools down, it flows back into the condenser assembly 23 for heat exchange, thus realizing the circulation and heat dissipation of the cooling medium.

[0050] During use, the air-cooled heat dissipation mechanism and the water-cooled heat dissipation mechanism start simultaneously, forming a coordinated built-in circulating ventilation and heat dissipation system: the heat dissipation fan blades 38 of the air-cooled heat dissipation mechanism blow air in all directions, accelerating the overall airflow speed inside the cabinet 1. On the one hand, it directly blows the heat generated by the electrical components inside the cabinet to the condenser tube assembly 23 and condenser tube assembly 24 of the water-cooled heat dissipation mechanism, accelerating the heat exchange between the air and the condenser tube assembly; on the other hand, the flowing air can accelerate the dissipation of heat on the surface of the condenser tube assembly, improving the heat exchange efficiency of the water-cooled heat dissipation.

[0051] The water-cooling heat dissipation mechanism absorbs heat from inside the cabinet 1 through continuous circulation of the cooling medium and dissipates it through the cooling pipes 25. Meanwhile, the fan 28 inside the casing ensures rapid cooling of the cooling medium, improving the energy efficiency of water-cooling heat dissipation. At the same time, the air flowing inside the cabinet 1 is cooled after passing through the water-cooling heat dissipation mechanism. The cooled air then flows through the electrical component area again, forming an air circulation inside the cabinet, further improving the heat dissipation effect. This achieves efficient synergy between air cooling and water cooling, providing reliable temperature protection for the high-load operation of the intelligent power distribution cabinet.

[0052] All transmission components of this invention are lubricated with lubricating oil, and all mating gaps are sealed to prevent dust and moisture inside the cabinet from entering the components and affecting the transmission effect. At the same time, ventilation holes are provided on the side wall of the cabinet 1 and dustproof nets are installed to ensure slight air circulation between the inside and outside of the cabinet while preventing external dust from entering the inside of the cabinet and ensuring the cleanliness of the electrical components inside the cabinet.

[0053] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A smart power distribution cabinet with a built-in circulating ventilation system, characterized in that, It includes a cabinet (1), a cabinet door (2) and a wind-cooled heat dissipation mechanism installed inside the cabinet (1). The cabinet door (2) is rotatably connected to the side of the cabinet (1). Two sets of partitions (3) are vertically fixed inside the cabinet (1) and are symmetrically arranged. Water-cooled heat dissipation mechanisms are installed on the two sets of partitions (3). The air-cooled heat dissipation mechanism includes a mounting plate (4) fixed in the middle of the top of the cabinet (1). The bottom of the mounting plate (4) is provided with an inclined U-shaped mounting seat (5). A horizontally arranged frame (6) is rotatably connected inside the U-shaped mounting seat (5). A fixed shaft (7) is symmetrically fixed on both sides of the frame (6). The frame (6) is rotatably engaged with the U-shaped mounting seat (5) through the fixed shaft (7). A housing (8) is provided inside the frame (6). A motor (9) is installed inside the housing (8). The output end of the motor (9) extends to the bottom of the housing (8), and a heat dissipation fan blade (38) is fixed on the output end of the motor (9).

2. The intelligent power distribution cabinet with a built-in circulating ventilation system according to claim 1, characterized in that, Fixed shafts two (10) are symmetrically fixed on the other two sides of the frame (6). The housing (8) is rotatably engaged with the frame (6) through the fixed shafts two (10). The motor one (9) is a dual-shaft motor. A transmission gear (11) is fixed on the top output end of the motor one (9). A gear one (12) meshes with one side of the transmission gear (11). The gear one (12) passes through and is rotatably connected to a rotating shaft one (13) that rotatably engages with the housing (8). A gear two (14) is fixed on the rotating shaft one (13) and above the gear one (12). A driven gear (15) meshes with one side of the gear two (14). A transmission shaft (16) is fixed at the top axis of the driven gear (15). The end of the transmission shaft (16) away from the driven gear (15) extends to the outside of the housing (8).

3. The intelligent power distribution cabinet with a built-in circulating ventilation system according to claim 2, characterized in that, The top of the U-shaped mounting base (5) is fixed with a fan-shaped slider (17), and the bottom of the mounting plate (4) is provided with an annular groove (18). The fan-shaped slider (17) is embedded in the annular groove (18) and slides in cooperation with the mounting plate (4).

4. The intelligent power distribution cabinet with a built-in circulating ventilation system according to claim 3, characterized in that, A toothed ring (19) is fixedly sleeved in the middle of the mounting plate (4). A gear three (20) meshes with one side of the toothed ring (19). A linkage shaft (21) is fixedly provided at the bottom of the gear three (20). The linkage shaft (21) passes through the fan-shaped slider (17) and the U-shaped mounting seat (5) in sequence and moves in cooperation with both.

5. The intelligent power distribution cabinet with a built-in circulating ventilation system according to claim 4, characterized in that, The bottom end of the linkage shaft (21) is rotatably connected to a universal joint (22), and the other end of the universal joint (22) is movably connected to the top end of the transmission shaft (16). The fan-shaped slider (17) and the U-shaped mounting base (5) are both fitted with bearings. The linkage shaft (21) passes through the bearings and is fixedly engaged with the inner ring of the bearings.

6. A smart power distribution cabinet with a built-in circulating ventilation system according to claim 5, characterized in that, The water-cooled heat dissipation mechanism includes a condenser tube assembly one (23) and a condenser tube assembly two (24). The condenser tube assembly one (23) and the condenser tube assembly two (24) are respectively installed inside two sets of partitions (3). The bottom ends of the condenser tube assembly one (23) and the condenser tube assembly two (24) extend to the bottom end of the cabinet (1). The water outlet end of the condenser tube assembly one (23) is connected to a cooling pipe (25). The end of the cooling pipe (25) away from the condenser tube assembly one (23) is connected to the water inlet end of the condenser tube assembly two (24).

7. A smart power distribution cabinet with a built-in circulating ventilation system according to claim 6, characterized in that, A circulation pump (26) is installed at the bottom of the cabinet (1). The outlet of the circulation pump (26) is connected to the inlet of the condenser tube assembly (23), and the inlet of the circulation pump (26) is connected to the outlet of the condenser tube assembly (24).

8. A smart power distribution cabinet with a built-in circulating ventilation system according to claim 7, characterized in that, The bottom of the cabinet (1) is fixed with a cover (27), which is fitted onto the outer surface of the cooling pipe (25). Several evenly distributed fans (28) are installed inside the cover (27) and above the cooling pipe (25).

9. A smart power distribution cabinet with a built-in circulating ventilation system according to claim 8, characterized in that, Both sides of the inner side of the cover (27) are movably fitted with bushings (29). The bushings (29) are fitted on the outer surface of the cooling pipe (25). The outer surface of the bushings (29) is fixedly fitted with side plates (30). A shaft (31) is rotatably connected between the two sets of side plates (30) and above the cooling pipe (25). Several movable shafts (32) are vertically fixed on the shaft (31). The number of movable shafts (32) corresponds one-to-one with the number of fans (28). The bottom end of the movable shaft (32) is connected to the corresponding fan (28) for driving the fan (28) to rotate. A bevel gear (33) is fixed at the top of the movable shaft (32), and an inner bevel gear ring (34) is fixed inside the cover (27). The number of inner bevel gear rings (34) is matched with the number of bevel gears (33), and the bevel gears (33) mesh with the corresponding inner bevel gear rings (34).

10. A smart power distribution cabinet with a built-in circulating ventilation system according to claim 9, characterized in that, The bushing (29) is movably fitted with the cover (27) through the bearing two. A gear four (35) is fixedly sleeved on the outer surface of one of the bushings (29). A gear five (36) meshes with the bottom of the gear four (35). A motor two (37) is installed on one side inside the cover (27). The output end of the motor two (37) is connected to the shaft of the gear five (36) for driving the gear five (36) to rotate.

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