A high reliability primary and secondary fusion complete ring net box suitable for smart grid

Abstract

This invention discloses a high-reliability integrated primary and secondary ring main unit suitable for smart grids, relating to the field of smart grids. This high-reliability integrated primary and secondary ring main unit for smart grids utilizes the cooperation of a circular groove in the inner casing and a rectangular groove in the outer casing. During the internal and external air circulation process, air first passes through louvers at the rectangular groove position of the outer casing and enters the space between the inner and outer casings. Subsequently, driven by the air guiding mechanism, it flows to the circular groove position, increasing the path of the incoming outside air. This prevents outside air from directly contacting the installed electronic components, allowing moisture in the outside air to fully contact the outer and inner casings. Simultaneously, rainwater that accidentally splashes into the interior is blocked at the gap, preventing contact with electronic components. Furthermore, the gap between the two shells forms a buffer protective layer, improving collision protection capabilities.

Description

Technical Field

[0001] Specifically, this invention relates to a highly reliable integrated primary and secondary ring network box suitable for smart grids, and pertains to the field of smart grids. Background Technology

[0002] The integrated primary and secondary ring network box of the smart grid refers to an outdoor power distribution equipment that integrates primary high-voltage switchgear and secondary intelligent measurement and control protection equipment in the factory and delivers it as a complete set. It directly undertakes the important mission of power distribution, fault handling and distributed new energy access. Its operating efficiency and reliability are directly related to the end user's power consumption experience and the overall safe and stable operation of the power grid.

[0003] A high-heat-dissipation ring mesh box, disclosed in CN116404554B, includes a box body and a door. Several electrical devices are installed inside the box body. Heat dissipation vents are provided on the sides of the box body, and a cover is provided on the top side. The top side of the box body has mounting holes and an exhaust fan mounted on the inner side of the mounting holes. A first filter frame is installed on the heat dissipation vents, and a first filter screen is provided in the middle of the first filter frame. This application utilizes the cooperation of the first filter screen and the exhaust fan. When the exhaust fan on the top side of the box body is activated, the high-temperature gas inside the box body is extracted, while the lower-temperature outside air enters the box body through the first filter screen. This constitutes an exchange of gases between the inside and outside of the box body, improving the heat dissipation efficiency of the ring mesh box during operation. The first filter screen also blocks insects from entering the box body, reducing the possibility of small insects entering and improving the protective performance of the ring mesh box.

[0004] In existing equipment, because the ring main unit needs to circulate and exchange air with the outside air, an air flow path needs to be opened, which allows moisture and debris from the outside to enter the ring main unit, causing the electrical circuits inside the ring main unit to become damp and damaged. Summary of the Invention

[0005] To address the aforementioned problems, a technical solution is proposed: a high-reliability integrated primary and secondary ring main unit suitable for smart grids, comprising:

[0006] The box-shaped structure has a top cover fixedly installed on its top and an air guide mechanism installed inside. The air guide mechanism is symmetrically installed along the center position of the axis of the box-shaped structure.

[0007] The enclosure mechanism includes an outer casing with a door rotatably mounted on its outer side. The door is symmetrically mounted along the center of the outer casing's axis. Rectangular grooves are formed on both sides of the outer casing, and louvers are fixedly installed in these grooves. An inner casing is fixedly mounted on the inner wall of the outer casing, with a gap between them. A guide plate is fixedly mounted on the bottom of the inner wall of the inner casing near the door, with a sloping top and a downward-sloping side near the door. Uniformly spaced through grooves are formed on the bottom of the outer casing near the door, and symmetrically arranged circular through grooves are formed on the side of the inner casing away from the door. By using the circular groove of the inner casing and the rectangular groove of the outer casing to circulate the air, the air first passes through the louvers at the rectangular groove of the outer casing and enters the space between the inner and outer casings. Then, driven by the air guiding mechanism, it flows to the circular groove, increasing the path of the incoming outside air. This prevents the outside air from directly contacting the installed electronic components and allows moisture in the outside air to fully contact the outer and inner casings. At the same time, rainwater that accidentally splashes into the interior can be blocked at the gap to prevent it from contacting the electronic components. Furthermore, the gap between the two casings forms a buffer protective layer, improving the impact protection capability.

[0008] Preferably, an mounting plate is fixedly installed on the inner wall of the inner casing, and rectangular through grooves are evenly opened on the outer side of the mounting plate. A splash guard is fixedly installed on the top side of the guide plate away from the box door. A cable conduit is fixedly installed on the side of the outer casing away from the box door. The end of the cable conduit away from the outer casing passes through the inner casing and extends into its interior. The cable conduit is inclined upward from the outside to the inside. The cable conduit connects the space between the outer casing and the inner casing. At the same time, the upward inclination of the cable conduit from the outside to the inside allows the cable to be inclined inside the cable conduit after it is installed through the inside of the cable conduit. The cable conduit supports the outer casing and the inner casing, improving the anti-collision effect. At the same time, the inclined cable and cable conduit prevent rainwater from sliding down the surface of the cable and entering the ring network box in rainy weather.

[0009] Preferably, the air guiding mechanism includes a fixed cylinder, which is fixedly installed at the circular groove of the inner casing. An inner support plate is fixedly installed on the inner wall of the inner casing. The outer side of the inner support plate has evenly spaced through grooves. A fixed plate is fixedly installed at one end of the fixed cylinder. A motor is fixedly installed on the side of the inner support plate away from the fixed plate. The output end of the motor passes through the inner support plate and extends to the other side. A fan impeller is fixedly installed at the output end of the motor. A through-groove ring is fixedly installed on the outer side of the fixed plate. Arc-shaped through grooves are evenly spaced on the outer side of the through-groove ring. The end of the through-groove ring away from the fixed plate is in contact with the inner wall of the outer casing. An inner arc ring is fixedly installed on the outer side of the fixed plate. The inner arc ring... The fixed plate is evenly installed at its center position. There are gaps between the inner arc rings. The sponge ring is restricted by the through groove ring and the inner arc ring. When outside air enters the interior of the inner casing, it passes through the through groove ring, the sponge ring and the inner arc ring in sequence. The sponge ring absorbs the moisture in the air. At the same time, the sponge ring is installed between the inner casing and the outer casing. When a lot of moisture is collected inside the sponge ring, the water inside can drip down under its own weight and enter the gap between the inner casing and the outer casing, preventing it from entering the installation space of electronic components and causing electrical circuits to be damaged by moisture. The end of the inner arc ring away from the fixed plate is in contact with the inner wall of the outer casing, and the sponge ring is fixedly installed between the inner arc ring and the through groove ring.

[0010] Preferably, the top cover mechanism includes a connecting frame, which is fixedly installed on the top of the inner wall of the outer casing. A frame groove is formed at the bottom of the outer side of the connecting frame. A sealing ring, made of rubber, is fixedly installed in the frame groove of the connecting frame. A hollow slot plate is fixedly installed on the top of the connecting frame. A through groove is evenly formed at the center of the top of the hollow slot plate, and symmetrical inclined grooves are formed on the top of the hollow slot plate, sloping downwards from the center to both sides. Grille grooves are evenly formed on both sides of the top of the hollow slot plate. Water guide covers are fixedly installed on both sides of the bottom of the hollow slot plate, corresponding to the grille grooves of the hollow slot plate. A top cover plate is fixedly installed on the top of the hollow slot plate, and the top of the top cover plate is a central... The top cover plate has a raised sloping surface at the center position. Inner support strips are fixedly installed on both sides of the bottom of the top cover plate. Inner baffles are fixedly installed at the bottom of the inner support strips. The inner baffles cooperate with the top baffles to form a heat insulation space using the gap between the inner baffles and the top baffles. This prevents the temperature of the top baffles from being too low, which would cause the hot air to directly contact the bottom of the top baffles and produce a large number of condensation droplets. The inner baffles guide the hot air to prevent it from condensing at the center position. Otherwise, the condensed water droplets would drip directly from the through groove at the center of the empty slot plate back into the ring network box, causing damage to the electrical circuits. The two ends of the inner baffles are inclined downwards. There is a gap between the bottom of the inner baffles and the top of the empty slot plate, and there is also a gap between the top of the inner baffles and the bottom of the top cover plate.

[0011] This invention provides a high-reliability integrated primary and secondary ring network box suitable for smart grids, which has the following advantages:

[0012] (i) By using the round groove of the inner casing and the rectangular groove of the outer casing to circulate the air, the air first passes through the louvers at the rectangular groove of the outer casing and enters the space between the inner and outer casings. Then, driven by the air guide mechanism, it flows to the round groove, increasing the path of the outside air. This prevents the outside air from directly contacting the installed electronic components and allows the moisture in the outside air to fully contact the outer and inner casings. At the same time, rainwater that accidentally splashes into the interior can be blocked at the gap to prevent it from contacting the electronic components. Furthermore, the gap between the two shells forms a buffer protective layer, improving the impact protection capability.

[0013] (ii) The space between the outer and inner enclosures is connected by a cable conduit. The cable conduit slopes upward from the outside to the inside. After the connecting cable passes through the inside of the cable conduit, the cable is inclined inside the cable conduit. The cable conduit supports the outer and inner enclosures, improving the anti-collision effect. At the same time, the inclined cable and cable conduit prevent rainwater from sliding down the surface of the cable and entering the ring network box in rainy weather.

[0014] (III) The sponge ring is restricted by the through-groove ring and the inner arc ring. When outside air enters the inner casing, it passes through the through-groove ring, the sponge ring and the inner arc ring in sequence. The sponge ring absorbs the moisture in the air. At the same time, the sponge ring is installed between the inner casing and the outer casing. When a lot of moisture is collected inside the sponge ring, the water inside can drip down under its own weight and enter the gap between the inner casing and the outer casing, preventing it from entering the installation space of electronic components and causing electrical circuits to be damaged by moisture.

[0015] (iv) By cooperating with the inner baffle and the top baffle, a heat insulation space is formed by the gap between the inner baffle and the top baffle. This prevents the temperature of the top baffle from being too low, which would cause the hot air to come into direct contact with the bottom of the top baffle and produce a large number of condensation droplets. The inner baffle guides the hot air to prevent it from condensing in the center. Otherwise, the condensed water droplets would drip directly from the through groove in the center of the empty slot plate back into the ring network box, causing damage to the electrical circuit. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a sectional view of the housing mechanism and the air guide mechanism of the present invention;

[0018] Figure 3 This is a sectional view of the box mechanism of the present invention;

[0019] Figure 4 This is a schematic diagram of the air guide mechanism of the present invention;

[0020] Figure 5 This is a sectional view of the air guide mechanism of the present invention;

[0021] Figure 6 This is a schematic diagram of the top cover mechanism of the present invention;

[0022] Figure 7 This is a sectional view of the top cover mechanism of the present invention;

[0023] Figure 8 This is a top-view sectional view of the top cover mechanism of the present invention.

[0024] In the diagram: 1. Housing mechanism; 2. Top cover mechanism; 3. Air guide mechanism; 11. Outer casing; 12. Inner casing; 13. Louver; 14. Cable conduit; 15. Mounting plate; 16. Door; 17. Flow deflector; 18. Splash guard; 21. Top cover plate; 22. Water guide cover; 23. Hollow slot plate; 24. Inner support bar; 25. Inner baffle; 26. Sealing ring; 27. Connecting frame; 31. Through slot ring; 32. Sponge ring; 33. Fan impeller; 34. Fixing plate; 35. Inner arc ring; 36. Fixing cylinder; 37. Inner support plate; 38. Motor. Detailed Implementation

[0025] Example 1, Reference Figures 1 to 3 The present invention provides the following technical solution:

[0026] A high-reliability integrated primary and secondary ring main unit suitable for smart grids includes:

[0027] The box mechanism 1 has a top cover mechanism 2 fixedly installed on its top and an air guide mechanism 3 installed inside the box mechanism 1. The air guide mechanism 3 is symmetrically installed along the center position of the axis of the box mechanism 1.

[0028] The enclosure mechanism 1 includes an outer cover 11 with a door 16 rotatably mounted on its outer side. The door 16 is symmetrically mounted along the center of the axis of the outer cover 11. Rectangular grooves are provided on both sides of the outer cover 11, and louvers 13 are fixedly installed at each of these grooves. The outer cover 11 provides the outermost layer of protection. The rotatably mounted door 16 allows for the opening and closing of the equipment, facilitating the inspection, maintenance, and debugging of internal components by personnel. When closed, it forms a sealed structure with the outer cover 11, preventing the entry of external dust, rainwater, and other debris. The rectangular grooves on both sides of the outer cover 11 are fixedly mounted... The installed louvers 13 provide a ventilation path between the enclosure mechanism 1 and the outside, laying the foundation for subsequent heat dissipation. The louver structure also prevents rainwater from directly intruding into the interior. The inner enclosure 12, which is fixed to the inner wall of the outer enclosure 11, forms a gap with the outer enclosure 11. This gap can form a buffer layer to reduce the impact of external temperature changes or collisions on the internal equipment, while also providing space for airflow and drainage. The guide plate 17, which is fixed to the bottom of the inner wall of the inner enclosure 12 near the door 16, directs the small amount of rainwater that seeps in to the channel at the bottom of the outer enclosure 11, achieving rapid water accumulation. To prevent water from accumulating and soaking the internal equipment, an inner cover 12 is fixedly installed on the inner wall of the outer cover 11. A gap exists between the inner cover 12 and the outer cover 11. A guide plate 17 is fixedly installed on the bottom of the inner wall of the inner cover 12 near the door 16. The top of the guide plate 17 is sloped and tilts downwards near the door 16. A splash guard 18 is fixed on the top of the guide plate 17 away from the door 16 to prevent rainwater from splashing onto the electrical components on the mounting plate 15. The mounting plate 15, fixed to the inner wall of the inner cover 12, has evenly spaced rectangular grooves on its outer side for fixing... The installation of electrical components related to the primary and secondary integration of smart grids is facilitated by the rectangular through-slots, which allow for easy wiring and heat dissipation between components. The cable conduit 14, fixed on the side of the outer casing 11 away from the door 16, extends through the inner casing 12 to the interior at the end away from the outer casing 11. The cable conduit 14 slopes upward from the outside to the inside to prevent rainwater from flowing back into the inner casing 12 through the cable conduit 14, ensuring the safety of the cable connection. The bottom of the outer casing 11 near the door 16 is provided with evenly spaced through slots, and the inner casing 12 is provided with symmetrically spaced circular through slots on the side away from the door 16.

[0029] An installation plate 15 is fixedly installed on the inner wall of the inner casing 12. Rectangular through grooves are evenly opened on the outer side of the installation plate 15. A splash guard 18 is fixedly installed on the top side of the guide plate 17 away from the box door 16. A cable conduit 14 is fixedly installed on the side of the outer casing 11 away from the box door 16. The end of the cable conduit 14 away from the outer casing 11 passes through the inner casing 12 and extends into its interior. The cable conduit 14 is inclined upward from the outside to the inside.

[0030] Example 2, based on Example 1, with reference to Figures 4 to 5The air guiding mechanism 3 includes a fixed cylinder 36, which is fixedly installed in the circular groove of the inner casing 12. An inner support plate 37 is fixedly installed on the inner wall of the inner casing 12. The outer side of the inner support plate 37 is evenly provided with through grooves. A fixed plate 34 is fixedly installed at one end of the fixed cylinder 36. A motor 38 is fixedly installed on the side of the inner support plate 37 away from the fixed plate 34. The output end of the motor 38 passes through the inner support plate 37 and extends to the other side. A fan impeller 33 is fixedly installed at the output end of the motor 38. A through groove ring 31 is fixedly installed on the outer side of the fixed plate 34. The motor 38 drives the fan impeller 33 to rotate. During the rotation of the fan impeller 33, the air between the outer casing 11 and the inner casing 12 first passes through the arc groove of the through groove ring 31 and contacts the sponge ring 32. The sponge ring 32 absorbs foreign objects and moisture in the air. The outer side of the through-groove ring 31 is evenly provided with arc-shaped through grooves, and the end of the through-groove ring 31 away from the fixed plate 34 is in contact with the inner wall of the outer box cover 11. An inner arc ring 35 is fixedly installed on the outer side of the fixed plate 34. The inner arc rings 35 are evenly installed along the center position of the fixed plate 34. There are gaps between the inner arc rings 35. The end of the inner arc ring 35 away from the fixed plate 34 is in contact with the inner wall of the outer box cover 11. Then, the air passes through the gap between the inner arc rings 35 and enters the interior of the fixed cylinder 36. Finally, under the guidance of the fixed cylinder 36, it passes through the inner support plate 37 and enters the interior of the inner box cover 12, increasing the air pressure inside the inner box cover 12 and reducing the internal temperature. At the same time, the internal air is discharged through the top cover mechanism 2, realizing the circulation and exchange of air between the ring mesh box and the outside air. A sponge ring 32 is fixedly installed between the inner arc ring 35 and the through-groove ring 31.

[0031] Example 3, based on Examples 1 and 2, with reference to Figures 6 to 8The top cover mechanism 2 includes a connecting frame 27, which is fixedly installed on the top of the inner wall of the outer casing 11. A frame groove is provided at the bottom of the outer side of the connecting frame 27. A sealing ring 26, made of rubber, is fixedly installed in the frame groove of the connecting frame 27. A slotted plate 23 is fixedly installed on the top of the connecting frame 27. A through groove is evenly provided at the center of the top of the slotted plate 23. Rainwater or debris falling on the top of the ring network box slides down the slope through the inclined surface of the top cover plate 21. Simultaneously, the high-temperature air exiting from the inside first passes through the through groove at the center of the slotted plate 23 and enters the gap between the inner baffle 25 and the slotted plate 23. Then, the inclination of the inner baffle 25 on both sides guides the rising air, causing it to move towards the grid grooves on both sides of the slotted plate 23. Finally, the air is exited from the ring network box through the grid grooves of the slotted plate 23 and the water guide cover 22. The top of the slotted plate 23 is symmetrically provided with inclined grooves. The groove slopes downwards from the center to both sides. The top of the empty groove plate 23 has evenly spaced grid grooves on both sides. Water guide covers 22 are fixedly installed on both sides of the bottom of the empty groove plate 23. The water guide covers 22 correspond to the grid grooves of the empty groove plate 23. A top cover plate 21 is fixedly installed on the top of the empty groove plate 23. The top of the top cover plate 21 is a convex inclined surface at the center. Inner support strips 24 are fixedly installed on both sides of the bottom of the top cover plate 21. Inner baffles 25 are fixedly installed at the bottom of the inner support strips 24. When the air is condensed, the condensed water droplets are concentrated between the top cover plate 21 and the empty groove plate 23. Then, the condensed water droplets are allowed to flow along the inclined surface using the inclined groove at the top of the empty groove plate 23 and are eventually discharged through the grid grooves of the empty groove plate 23. The two ends of the inner baffles 25 slope downwards. There is a gap between the bottom of the inner baffles 25 and the top of the empty groove plate 23, and there is also a gap between the top of the inner baffles 25 and the bottom of the top cover plate 21.

[0032] In use, the enclosure mechanism 1 provides protection, while the air guide mechanism 3 provides power for the airflow inside the enclosure mechanism 1, enabling the exchange of air between the inside of the enclosure mechanism 1 and the outside air, and the top cover mechanism 2 provides a path for the internal air to be discharged.

[0033] In the enclosure mechanism 1, the outer enclosure 11 provides the outermost layer of protection. The rotating enclosure door 16 allows the equipment to be opened and closed, facilitating the inspection, maintenance, and debugging of internal components. When closed, it forms a sealed structure with the outer enclosure 11, preventing the entry of external dust, rainwater, and other debris. The louvers 13 fixedly installed on the rectangular grooves on both sides of the outer enclosure 11 provide a ventilation path between the enclosure mechanism 1 and the outside, laying the foundation for subsequent heat dissipation. The louver structure also prevents rainwater from directly intruding into the interior. The inner enclosure 12, fixed to the inner wall of the outer enclosure 11, forms a gap with the outer enclosure 11. This gap can form a buffer layer, reducing the impact of external temperature changes or collisions on the internal equipment, while also providing space for airflow and drainage. The inner wall of the inner enclosure 12 has a guide tube fixed at the bottom near the enclosure door 16. The plate 17 guides a small amount of rainwater that seeps in to the through groove at the bottom of the outer casing 11, enabling rapid drainage of accumulated water and preventing water from soaking the internal equipment. The splash guard 18 fixed on the top of the guide plate 17 away from the door 16 can prevent rainwater from splashing onto the electrical components on the mounting plate 15. The mounting plate 15 fixed on the inner wall of the inner casing 12 has rectangular through grooves evenly opened on its outer side for fixing and installing electrical components related to the primary and secondary integration of the smart grid. The rectangular through grooves facilitate the wiring and heat dissipation between components. The cable conduit 14 fixed on the side of the outer casing 11 away from the door 16 extends through the inner casing 12 into the interior at the end away from the outer casing 11. The cable conduit 14 slopes upward from the outside to the inside to prevent rainwater from flowing back into the inner casing 12 through the cable conduit 14, ensuring the safety of the cable connection.

[0034] In the air guiding mechanism 3, the fan impeller 33 is driven to rotate by the motor 38. During the rotation of the fan impeller 33, the air between the outer casing 11 and the inner casing 12 first passes through the arc groove of the through-groove ring 31 and contacts the sponge ring 32. The sponge ring 32 absorbs foreign objects and moisture in the air. Then the air passes through the gap between the inner arc rings 35 and enters the interior of the fixed cylinder 36. Finally, under the guidance of the fixed cylinder 36, it passes through the inner support plate 37 and enters the interior of the inner casing 12, increasing the air pressure inside the inner casing 12 and reducing the internal temperature. At the same time, the internal air is discharged through the top cover mechanism 2, realizing the circulation and exchange of air between the ring network box and the outside air.

[0035] In the top cover mechanism 2, rainwater or debris falling on the top of the ring mesh box slides down the slope through the inclined surface of the top cover plate 21. At the same time, the high-temperature air discharged from the inside first passes through the through slot opened in the center of the hollow slot plate 23 and enters the gap between the inner baffle 25 and the hollow slot plate 23. Then, the inclination on both sides of the inner baffle 25 guides the rising air, causing the air to move towards the grid slots on both sides of the hollow slot plate 23. Finally, the air is discharged from the ring mesh box through the grid slots of the hollow slot plate 23 and the water guide cover 22. At the same time, when the discharged air condenses, the condensed water droplets concentrate between the top cover plate 21 and the hollow slot plate 23. Then, the inclined slot at the top of the hollow slot plate 23 causes the dripping condensed water droplets to flow along the slope and finally be discharged through the grid slots of the hollow slot plate 23.

Claims

1. A high-reliability integrated primary and secondary ring network box suitable for smart grids, characterized in that, include: Box body mechanism (1), top cover mechanism (2) is fixedly installed on the top of the box body mechanism (1), air guide mechanism (3) is installed inside the box body mechanism (1), and the air guide mechanism (3) is symmetrically installed along the center position of the axis of the box body mechanism (1); The box mechanism (1) includes an outer box cover (11) with a box door (16) rotatably installed on the outside. The box door (16) is symmetrically installed along the center of the axis of the outer box cover (11). The outer box cover (11) has rectangular grooves on both sides and louvers (13) are fixedly installed at the rectangular grooves of the outer box cover (11). The inner box cover (12) is fixedly installed on the inner wall of the outer box cover (11). There is a gap between the inner box cover (12) and the outer box cover (11). A guide plate (17) is fixedly installed on the bottom of the inner wall of the inner box cover (12) near the box door (16). The top of the guide plate (17) is inclined and the side near the box door (16) is inclined downward. The bottom of the outer box cover (11) near the box door (16) has through grooves evenly opened. The inner box cover (12) away from the box door (16) has circular through grooves symmetrically opened.

2. The high-reliability integrated primary and secondary ring network box suitable for smart grids according to claim 1, characterized in that: The inner wall of the inner box cover (12) is fixedly installed with an installation plate (15), and the outer side of the installation plate (15) is evenly provided with rectangular through grooves. The top of the guide plate (17) is fixedly installed with a splash guard (18) on the side away from the box door (16), and the outer box cover (11) is fixedly installed with a cable tube (14) on the side away from the box door (16).

3. A high-reliability integrated primary and secondary ring network box suitable for smart grids according to claim 2, characterized in that: The end of the cable conduit (14) away from the outer casing (11) passes through the inner casing (12) and extends into its interior. The cable conduit (14) slopes upward from the outside to the inside.

4. A high-reliability integrated primary and secondary ring network box suitable for smart grids according to claim 3, characterized in that: The air guiding mechanism (3) includes a fixed cylinder (36), which is fixedly installed in the through groove of the inner box cover (12). An inner support plate (37) is fixedly installed on the inner wall of the inner box cover (12). Through grooves are evenly opened on the outer side of the inner support plate (37). A fixed plate (34) is fixedly installed at one end of the fixed cylinder (36).

5. A high-reliability integrated primary and secondary ring network box suitable for smart grids according to claim 4, characterized in that: A motor (38) is fixedly installed on the side of the inner support plate (37) away from the fixed plate (34). The output end of the motor (38) passes through the inner support plate (37) and extends to the other side. A fan impeller (33) is fixedly installed on the output end of the motor (38).

6. A high-reliability integrated primary and secondary ring network box suitable for smart grids according to claim 5, characterized in that: A through-groove ring (31) is fixedly installed on the outer side of the fixed disk (34). The through-groove ring (31) has an arc through groove evenly opened on its outer side. The end of the through-groove ring (31) away from the fixed disk (34) is in contact with the inner wall of the outer casing (11). An inner arc ring (35) is fixedly installed on the outer side of the fixed disk (34). The inner arc ring (35) is evenly installed along the center position of the fixed disk (34).

7. A high-reliability integrated primary and secondary ring network box suitable for smart grids according to claim 6, characterized in that: There is a gap between the inner arc rings (35), and the end of the inner arc ring (35) away from the fixed plate (34) is in contact with the inner wall of the outer box cover (11), and a sponge ring (32) is fixedly installed between the inner arc ring (35) and the through groove ring (31).

8. A high-reliability integrated primary and secondary ring network box suitable for smart grids according to claim 7, characterized in that: The top cover mechanism (2) includes a connecting frame (27), which is fixedly installed on the top of the inner wall of the outer casing (11), and a frame groove is provided at the bottom of the outer side of the connecting frame (27). A sealing ring (26) is fixedly installed at the frame groove of the connecting frame (27), and the sealing ring (26) is made of rubber material.

9. A high-reliability integrated primary and secondary ring network box suitable for smart grids according to claim 8, characterized in that: A hollow slot plate (23) is fixedly installed on the top of the connecting frame (27). A through slot is evenly opened at the center of the top of the hollow slot plate (23), and a symmetrical inclined slot is opened on the top of the hollow slot plate (23). The inclined slot slopes downward from the center to both sides. A grid slot is evenly opened on both sides of the top of the hollow slot plate (23). A water guide cover (22) is fixedly installed on both sides of the bottom of the hollow slot plate (23). The water guide cover (22) corresponds to the grid slot of the hollow slot plate (23).

10. A high-reliability integrated primary and secondary ring network box suitable for smart grids according to claim 9, characterized in that: A top cover plate (21) is fixedly installed on the top of the hollow slot plate (23). The top of the top cover plate (21) is a sloping surface with a central protrusion. Inner support strips (24) are fixedly installed on both sides of the bottom of the top cover plate (21). An inner baffle (25) is fixedly installed on the bottom of the inner support strip (24). The two ends of the inner baffle (25) are inclined downward. There is a gap between the bottom of the inner baffle (25) and the top of the hollow slot plate (23), and there is a gap between the top of the inner baffle (25) and the bottom of the top cover plate (21).

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