Ring main unit intelligent dehumidifying and cooling system and method based on solar power supply

Abstract

The invention relates to the technical field of power equipment maintenance, in particular to a ring main unit intelligent dehumidifying and cooling system and method based on solar power supply, and the system comprises a cabinet body, the top of the cabinet body is provided with a solar panel, and the cabinet body is internally provided with a plurality of temperature and humidity sensors, a storage battery pack and a controller. The temperature and humidity sensor communicates with the controller; an air outlet is formed in the top of the cabinet body, air inlets are formed in the two sides of the bottom of the cabinet body, a first flow guide cover and a second flow guide cover are arranged in the cabinet body, an exhaust fan is arranged in the first flow guide cover, and a semiconductor condensation module is arranged in the second flow guide cover. The system monitors the environment in the cabinet through the multi-point temperature and humidity sensor, and the exhaust fan is started at high temperature to form lower-in and upper-out convection air for cooling; the air outlet is closed when the humidity is high, the air is liquefied and dehumidified through the condensation module, and the dry low-temperature air is circulated back into the cabinet. The solar panel and the storage battery pack realize independent power supply, and are adaptive to a scene without an external power supply. The system is intelligent and efficient, significantly improves the reliability of the ring main unit, and reduces the energy consumption and maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of power equipment maintenance technology, and in particular to an intelligent dehumidification and cooling system and method for ring main units based on solar power. Background Technology

[0002] Ring main units (RNBs) are key equipment in power transmission and distribution systems, primarily used for cable line segmentation, interconnection, and load control in urban power distribution networks. They are widely distributed in outdoor substations, green belts, and roadsides. Internally, they contain high-voltage components such as busbars, circuit breakers, and cable joints, and are typically kept in a closed environment. Most are installed in outdoor environments without a stable external power supply, such as suburbs or the edges of industrial parks. Due to the heat generated by the components during operation, and the influence of day-night temperature differences and weather conditions like rain and snow, high temperatures and humidity can easily occur inside the cabinet, directly threatening insulation performance and equipment lifespan. Current technologies often use ventilation holes or natural ventilation louvers in the cabinet, relying on natural air convection for heat dissipation and dehumidification. However, this method has extremely low cooling and dehumidification efficiency and cannot meet requirements in high-temperature and high-humidity environments. Alternatively, exhaust fans or similar devices are used, driven by an external power supply. Some are equipped with simple temperature and humidity sensors for start-stop operation, relying on grid power. This approach is unsuitable for outdoor RNBs without low-voltage power supplies and cannot handle simultaneous high temperature and humidity conditions.

[0003] Therefore, it is necessary to propose an intelligent dehumidification and cooling system and method for ring main units based on solar power to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a solar-powered intelligent dehumidification and cooling system and method for ring main units, in order to solve the problems of low dehumidification and cooling efficiency, reliance on external power supply for cooling equipment, and inability to coordinate the handling of high temperature and high humidity at the same time.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A solar-powered intelligent dehumidification and cooling system for ring main units includes a cabinet. A solar panel is fixedly installed on the top of the cabinet. Multiple temperature and humidity sensors are fixedly installed inside the cabinet. A battery pack and a controller are also fixedly installed inside the cabinet. The solar panel is connected to the battery pack via the controller through electrical wires. The temperature and humidity sensors are communicatively connected to the controller. An air outlet is provided on the top of the cabinet, and air inlets are provided on both sides of the bottom of the cabinet. A first air guide hood and a second air guide hood are fixedly installed inside the cabinet. The first air guide hood is located at the top of the cabinet, and the second air guide hood is located at the bottom of the cabinet. The top of the first air guide hood is open and the opening communicates with the air outlet. An air inlet slot is provided at the bottom of the first air guide hood. An exhaust fan is provided in the middle of the first air guide hood. An air outlet slot is provided at the top of the second air guide hood. A semiconductor condensation module is installed inside the second air guide hood. The semiconductor condensation module is used to condense the air inside the cabinet.

[0006] Preferably, the semiconductor condensation module includes a protective shell, a semiconductor cooling core, a water inlet channel, a drainage channel, and a water supply pipe. The protective shell is fixedly installed on the second flow guide and has an opening on one side. The semiconductor cooling core is fixedly installed inside the protective shell. Water inlets are provided on both sides of the cold end face of the semiconductor cooling core. The drainage channels are located on both sides of the semiconductor cooling core inside the protective shell. One end of the water supply pipe is connected to the drainage channel, and the other end of the water supply pipe extends through the protective shell and the cabinet to the outside of the cabinet.

[0007] Preferably, a heat exchange plate is installed on the cold end face of the semiconductor cooling core, and the heat exchange plate is coated with a nano-hydrophobic coating. An aluminum heat-conducting plate is fixedly connected to the hot end face of the semiconductor cooling core, and one end of the aluminum heat-conducting plate extends to the cable connector position at the bottom of the cabinet.

[0008] Preferably, the air guide shroud is connected to air ducts on both sides near the top of the cabinet, and the air ducts are connected to the air guide shroud ...

[0009] Preferably, an electric damper is installed inside the air outlet, and the electric damper is controlled by a micro servo motor.

[0010] Preferably, the air inlet is provided with louvers inside, and a dustproof net is installed on the outside of the air inlet, with the dustproof net located inside the cabinet.

[0011] Preferably, a magnetic mounting base is fixedly installed on the inner wall of the cabinet, and a temperature and humidity sensor is fixedly installed on the magnetic mounting base. A silicone pad is provided between the magnetic mounting base and the temperature and humidity sensor, and the silicone pad is fixedly installed on the magnetic mounting base.

[0012] Preferably, the multiple temperature and humidity sensors are respectively fixedly installed in the busbar compartment, the center of the cabinet, and the bottom cable connector position of the cabinet.

[0013] Preferably, a heat insulation pad is provided at the bottom of the battery pack, and the heat insulation pad is fixedly installed inside the cabinet.

[0014] A method for intelligent dehumidification and cooling of a ring main unit based on solar power, characterized by the following steps: S1: The temperature and humidity inside the cabinet are monitored by temperature and humidity sensors located in the busbar compartment, the center of the cabinet, and the bottom cable joint, and the temperature and humidity data are transmitted to the controller. S2: After receiving data, the controller's internal data analysis module analyzes the data and uses multiple control modes to achieve temperature and humidity regulation. When the monitored cabinet temperature is high, the controller controls the exhaust fan to start. The exhaust fan expels air from the cabinet through the air outlet, while outside air enters the cabinet through the air inlet at the bottom, forming a bottom-in, top-out directional convection airflow to achieve cooling. When the monitored cabinet humidity is high, the controller controls the electric damper to close the air outlet through a micro servo motor. The controller then controls the exhaust fan to start. Due to the negative pressure of the exhaust fan, the air inside the cabinet enters through the air inlet slot at the bottom of the first guide shroud and is transported through the air duct to the protective shell containing the semiconductor cooling core. After being cooled by the semiconductor cooling core, the water molecules in the air are liquefied. The liquefied air then re-enters the cabinet through the air outlet slot at the top of the second guide shroud, circulating repeatedly to reduce the humidity inside the cabinet. S3: The liquefied air-water molecules enter the drainage tank through the water inlet tank, and the water is directed out of the cabinet by the water pipe at the bottom of the drainage tank.

[0015] The technical effects and advantages of this invention are as follows: 1. Temperature and humidity sensors at the busbar compartment, cabinet center, and bottom cable joints are installed using magnetic mounting brackets. Silicone pads reduce vibration interference, accurately capturing temperature and humidity differences in different areas and avoiding misjudgments from single-point monitoring. When the temperature is high, the exhaust fan starts, and the bottom-in, top-out air convection design achieves directional airflow to accelerate heat dissipation. When the humidity is high, the electric damper closes the air outlet, and the air enters the semiconductor condensation module through the air duct. The semiconductor cooling core liquefies water vapor, and the dry air is circulated back into the cabinet, improving the dehumidification speed.

[0016] 2. The heat exchange plates of the semiconductor cooling core increase the contact area, and the nano-hydrophobic coating accelerates the condensate to slide off and be discharged outside the cabinet through the water inlet, drainage channel and water supply pipe, avoiding condensate residue that could cause secondary dampness; the aluminum heat-conducting plate on the hot end conducts the heat generated during condensation to the bottom cable joint, which can prevent insulation embrittlement caused by low temperature in winter, achieving the dual functions of dehumidification and heat preservation, and reducing additional energy consumption.

[0017] 3. The solar panels on the top of the cabinet work in conjunction with the battery pack to convert solar energy into electrical energy and store it, avoiding the problem of traditional systems failing to operate due to power outages; the heat insulation pad at the bottom of the battery pack reduces the impact of internal heat on the battery and extends its service life; even on consecutive rainy days, the energy storage can still maintain the operation of core components such as sensors and exhaust fans, ensuring uninterrupted monitoring and control.

[0018] 4. The louvers at the air inlet can prevent rainwater from splashing in, and the built-in dustproof net can be quickly disassembled and cleaned, reducing the decrease in ventilation efficiency caused by dust blockage; the magnetic sensor, modular condensation assembly and split air guide cover facilitate on-site maintenance, and the parts can be quickly replaced without professional tools, reducing the cost of manual inspection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a solar-powered ring main unit intelligent dehumidification and cooling system according to the present invention.

[0020] Figure 2 This is a front view of the internal structure of the intelligent dehumidification and cooling system of the ring network cabinet of the present invention.

[0021] Figure 3 This is a schematic diagram of the cooling and dehumidification structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the bottom structure of the intelligent dehumidification and cooling system of the ring network cabinet of the present invention.

[0023] Figure 5 This is a schematic diagram of the installation structure of the exhaust fan and water pipe of the present invention.

[0024] Figure 6 This is a schematic diagram of the semiconductor cooling core structure inside the protective shell of the present invention.

[0025] In the diagram: 1. Cabinet; 2. Solar panel; 3. Temperature and humidity sensor; 4. Battery pack; 5. Controller; 6. Air outlet; 7. Air inlet; 8. Air guide shroud one; 9. Air guide shroud two; 10. Air inlet slot; 11. Exhaust fan; 12. Air outlet slot; 13. Protective housing; 14. Semiconductor cooling core; 15. Water inlet slot; 16. Drain slot; 17. Water pipe; 18. Heat exchanger plate; 19. Aluminum heat-conducting plate; 20. Air duct; 21. Electric damper; 22. Louver; 23. Dustproof net; 24. Magnetic mounting base; 25. Silicone pad; 26. Heat insulation pad. Detailed Implementation

[0026] 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.

[0027] This invention provides, for example Figures 1-6The illustrated intelligent dehumidification and cooling system for a ring main unit based on solar power includes a cabinet 1. A solar panel 2 is fixedly installed on the top of the cabinet 1. Multiple temperature and humidity sensors 3 are fixedly installed inside the cabinet 1. A battery pack 4 and a controller 5 are also fixedly installed inside the cabinet 1. The solar panel 2 is connected to the battery pack 4 via the controller and wires. The temperature and humidity sensors 3 are communicatively connected to the controller 5. An air outlet 6 is provided on the top of the cabinet 1, and air inlets 7 are provided on both sides of the bottom of the cabinet 1. A first air guide shroud 8 and a second air guide shroud 9 are fixedly installed inside the cabinet 1. The first air guide shroud 8 is located at the top of the cabinet 1, and the second air guide shroud 9 is located at the bottom of the cabinet 1. The top of the first air guide shroud 8 is open and the opening is connected to the air outlet 6. An air inlet slot 10 is provided at the bottom of the first air guide shroud 8. An exhaust fan 11 is provided in the middle of the interior of the first air guide shroud 8. An air outlet slot 12 is provided at the top of the second air guide shroud 9. A semiconductor condensation module is installed inside the second air guide shroud 9. The semiconductor condensation module is used to condense the air inside the cabinet 1.

[0028] Furthermore, the semiconductor condensation module includes a protective shell 13, a semiconductor cooling core 14, a water inlet trough 15, a drainage trough 16, and a water supply pipe 17. The protective shell 13 is fixedly installed on the flow guide shroud 9 and has an opening on one side. The semiconductor cooling core 14 is fixedly installed inside the protective shell 13. Water inlet troughs 15 are provided on both sides of the cold end face of the semiconductor cooling core 14. The drainage troughs 16 are provided on both sides of the semiconductor cooling core 14 inside the protective shell 13. One end of the water supply pipe 17 is connected to the drainage trough 16, and the other end of the water supply pipe 17 passes through the protective shell 13 and the cabinet 1 and extends to the outside of the cabinet 1. Furthermore, a heat exchange plate 18 is installed on the cold end face of the semiconductor cooling core 14, and the heat exchange plate 18 is coated with a nano-hydrophobic coating. Furthermore, air ducts 20 are connected to both sides of the air deflector 8 near the top of the cabinet 1, and the air ducts 20 are connected to the air deflector 8. One end of the air duct 20 extends downward through the air deflector 9 and is connected to the inside of the protective shell 13.

[0029] An electric damper 21 is installed inside the air outlet 6, and the electric damper 21 is controlled by a micro servo motor.

[0030] In this embodiment of the invention, when the temperature and humidity sensor 3 detects that the temperature inside the cabinet 1 is high, the controller 5 controls the exhaust fan 11 to rotate, and the air inside the cabinet is discharged from the cabinet 1 through the air outlet 6, while the outside air enters the cabinet 1 through the air inlet 7, forming a "bottom in, top out" directional convection air duct, which accelerates the air circulation inside the cabinet 1.

[0031] When the temperature and humidity sensor 3 detects high humidity inside the cabinet 1, the airflow inside the cabinet is turbulent because the condenser module and the exhaust fan 11 operate independently. Some water vapor is discharged before contacting the condensation surface of the semiconductor cooling core 14, resulting in low dehumidification efficiency. Furthermore, the cold air generated by condensation tends to accumulate locally, affecting the temperature and humidity sensor 3's judgment of the overall humidity. The controller 5 can control the electric damper 21 to close the air outlet 6 via a micro servo motor. The controller 5 controls the exhaust fan 11 to start. Due to the negative pressure of the exhaust fan 11, the air inside the cabinet enters through the air inlet slot 10 at the bottom of the guide shroud 8 and is transported through the air duct 20 to the protective shell 13 containing the semiconductor cooling core 14. After being cooled by the semiconductor cooling core 14, some of the air is liquefied, and the other part of the air re-enters the cabinet through the air outlet slot 12 at the top of the guide shroud 9, circulating repeatedly to reduce the humidity inside the cabinet. Moreover, the condensed and liquefied air is at a lower temperature, and after being transported back into the cabinet, it can work with the exhaust fan 11 to cool the temperature inside the cabinet.

[0032] The liquefied air water molecules enter the drainage tank 16 through the water inlet 15, and the water is guided out of the cabinet by the water pipe 17 at the bottom of the drainage tank 16, thereby improving the dehumidification efficiency.

[0033] Since the temperature difference of the semiconductor condensation module is fixed, the condensation efficiency is insufficient when the humidity inside the cabinet is extremely high; while when the humidity is slightly high, the large temperature difference leads to energy waste. Therefore, the operating current of the semiconductor chip can be dynamically adjusted by the control system to achieve precise control of the cold surface temperature.

[0034] The heat exchange plate 18 can increase the contact area between air and the cold end face, thereby improving the condensation efficiency; the heat exchange plate 18 coated with a nano-hydrophobic coating can prevent condensate from adsorbing on the surface of the heat exchange plate 18.

[0035] An aluminum heat-conducting plate 19 is fixedly connected to the hot end face of the semiconductor cooling core 14, and one end of the aluminum heat-conducting plate 19 extends to the cable connector position at the bottom of the cabinet 1.

[0036] In this embodiment of the invention, when the outside temperature is low and the humidity inside the cabinet is high, in order to avoid the insulation of the cable joints becoming brittle due to low temperature, while dehumidifying, the heat generated by the hot end face of the semiconductor cooling core 14 and the aluminum heat-conducting plate 19 are used. In the initial state, the aluminum heat-conducting plate 19 is kept disconnected from the cable joint at the bottom of the cabinet 1. The aluminum heat-conducting plate 19 is manually connected to the bottom cable joint, and the heat generated by the hot end face during the dehumidification process is used for heating, thereby improving the energy utilization efficiency.

[0037] The air inlet 7 is equipped with louvers 22 inside, and a dustproof net 23 is installed on the outside of the air inlet 7. The dustproof net 23 is located inside the cabinet 1.

[0038] In this embodiment of the invention, the bottom air inlet louver 22 has a blade angle of 30°, which ensures air intake while reducing rainwater splashing in. The built-in nylon dustproof net 23 can be disassembled and cleaned through the snap-on structure.

[0039] A magnetic mounting base 24 is fixedly installed on the inner wall of the cabinet 1. A temperature and humidity sensor 3 is fixedly installed on the magnetic mounting base 24. A silicone pad 25 is provided between the magnetic mounting base 24 and the temperature and humidity sensor 3. The silicone pad 25 is fixedly installed on the magnetic mounting base 24.

[0040] Furthermore, multiple temperature and humidity sensors 3 are respectively fixedly installed in the busbar compartment, the center of the cabinet, and the bottom cable connector position of the cabinet 1.

[0041] In this embodiment of the invention, the magnetic mounting base 24 is designed to facilitate the installation of the temperature and humidity sensor 3 by the operator, avoids drilling and damaging the sealing of the cabinet 1, and the silicone pad 25 not only makes the temperature and humidity sensor 3 firmly installed, but also reduces the impact force on the temperature and humidity sensor 3.

[0042] Multiple temperature and humidity sensors 3 are installed in different locations to facilitate better monitoring. They are located near the busbar room to easily monitor high temperature risks. The central area of ​​the monitoring cabinet 1 can reflect the overall environment. The cable joint is located in a high-concentration area, so setting up temperature and humidity sensors 3 can focus on monitoring humidity.

[0043] A heat insulation pad 26 is provided at the bottom of the battery pack 4, and the heat insulation pad 26 is fixedly installed inside the cabinet 1.

[0044] In this embodiment of the invention, the heat insulation pad 26 can prevent the high temperature on the surface of the cabinet 1 from damaging the battery pack 4. The battery pack 4 collects the electrical energy generated by the solar panel 2 and supplies power to various electrical components inside the cabinet 1, thus achieving the effect of environmental protection and energy saving.

[0045] This invention provides a method for intelligent dehumidification and cooling of a ring main unit based on solar power, comprising the following steps: S1: The temperature and humidity inside the cabinet are monitored by temperature and humidity sensors located in the busbar compartment, the center of the cabinet, and the bottom cable joint, and the temperature and humidity data are transmitted to the controller. S2: After receiving data, the controller's internal data analysis module analyzes the data and uses multiple control modes to achieve temperature and humidity regulation. When the monitored cabinet temperature is high, the controller controls the exhaust fan to start. The exhaust fan expels air from the cabinet through the air outlet, while outside air enters the cabinet through the air inlet at the bottom, forming a bottom-in, top-out directional convection airflow to achieve cooling. When the monitored cabinet humidity is high, the controller controls the electric damper to close the air outlet through a micro servo motor. The controller then controls the exhaust fan to start. Due to the negative pressure of the exhaust fan, the air inside the cabinet enters through the air inlet slot at the bottom of the first guide shroud and is transported through the air duct to the protective shell containing the semiconductor cooling core. After being cooled by the semiconductor cooling core, the water molecules in the air are liquefied. The liquefied air then re-enters the cabinet through the air outlet slot at the top of the second guide shroud, circulating repeatedly to reduce the humidity inside the cabinet. S3: The liquefied air-water molecules enter the drainage tank through the water inlet tank, and the water is directed out of the cabinet by the water pipe at the bottom of the drainage tank.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A solar-powered ring main unit intelligent dehumidification and cooling system, comprising a cabinet (1), characterized in that: A solar panel (2) is fixedly installed on the top of the cabinet (1). Multiple temperature and humidity sensors (3) are fixedly installed inside the cabinet (1). A battery pack (4) and a controller (5) are also fixedly installed inside the cabinet (1). The solar panel (2) is connected to the battery pack (4) via the controller through wires. The temperature and humidity sensors (3) are communicatively connected to the controller (5). An air outlet (6) is provided on the top of the cabinet (1). Air inlets (7) are provided on both sides of the bottom of the cabinet (1). A deflector is fixedly installed inside the cabinet (1). 1 (8) and 2 (9) The first (8) of the air guide is located at the top of the cabinet (1), and the second (9) of the air guide is located at the bottom of the cabinet (1). The top of the first (8) of the air guide is open and the opening is connected to the air outlet (6). The bottom of the first (8) of the air guide is provided with an air inlet groove (10). The middle of the interior of the first (8) of the air guide is provided with an exhaust fan (11). The top of the second (9) of the air guide is provided with an air outlet groove (12). The interior of the second (9) of the air guide is equipped with a semiconductor condensation module, which is used to condense the air inside the cabinet (1).

2. The intelligent dehumidification and cooling system for a ring main unit based on solar power supply according to claim 1, characterized in that: The semiconductor condensation module includes a protective shell (13), a semiconductor cooling core (14), a water inlet channel (15), a drainage channel (16), and a water supply pipe (17). The protective shell (13) is fixedly installed on the flow guide cover (9) and has an opening on one side. The semiconductor cooling core (14) is fixedly installed inside the protective shell (13). The semiconductor cooling core (14) has water inlet channels (15) on both sides of the cold end face of the semiconductor cooling core (14). The drainage channel (16) is located on both sides of the semiconductor cooling core (14) inside the protective shell (13). One end of the water supply pipe (17) is connected to the drainage channel (16), and the other end of the water supply pipe (17) extends through the protective shell (13) and the cabinet (1) to the outside of the cabinet (1).

3. The intelligent dehumidification and cooling system for a ring main unit based on solar power supply according to claim 2, characterized in that: A heat exchange plate (18) is installed on the cold end face of the semiconductor cooling core (14). The heat exchange plate (18) is coated with a nano-hydrophobic coating. An aluminum heat-conducting plate (19) is fixedly connected to the hot end face of the semiconductor cooling core (14). One end of the aluminum heat-conducting plate (19) extends to the bottom cable connector of the cabinet (1).

4. A solar-powered intelligent dehumidification and cooling system for ring main units according to any one of claims 1 or 2, characterized in that: The first air guide (8) is connected to air ducts (20) on both sides near the top of the cabinet (1), and the air ducts (20) are connected to the first air guide (8). One end of the air duct (20) extends downward through the second air guide (9) and is connected to the inside of the protective shell (13).

5. The intelligent dehumidification and cooling system for a ring main unit based on solar power supply according to claim 1, characterized in that: An electric damper (21) is installed inside the air outlet (6), and the electric damper (21) is controlled by a micro servo motor.

6. The intelligent dehumidification and cooling system for a ring main unit based on solar power supply according to claim 1, characterized in that: The air inlet (7) is equipped with a louver (22) inside, and a dustproof net (23) is installed on the outside of the air inlet (7). The dustproof net (23) is located inside the cabinet (1).

7. The intelligent dehumidification and cooling system for a ring main unit based on solar power supply according to claim 1, characterized in that: A magnetic mounting base (24) is fixedly installed on the inner wall of the cabinet (1). A temperature and humidity sensor (3) is fixedly installed on the magnetic mounting base (24). A silicone pad (25) is provided between the magnetic mounting base (24) and the temperature and humidity sensor (3). The silicone pad (25) is fixedly installed on the magnetic mounting base (24).

8. The intelligent dehumidification and cooling system for a ring main unit based on solar power supply according to claim 1, characterized in that: Multiple temperature and humidity sensors (3) are respectively fixedly installed in the busbar compartment, the center of the cabinet and the bottom cable connector of the cabinet (1).

9. The intelligent dehumidification and cooling system for a ring main unit based on solar power supply according to claim 1, characterized in that: The bottom of the battery pack (4) is provided with a heat insulation pad (26), which is fixedly installed inside the cabinet (1).

10. A method for intelligent dehumidification and cooling of a ring main unit based on solar power, characterized in that, Includes the following steps: S1: The temperature and humidity inside the cabinet are monitored by temperature and humidity sensors located in the busbar compartment, the center of the cabinet, and the bottom cable joint, and the temperature and humidity data are transmitted to the controller. S2: After receiving data, the controller's internal data analysis module analyzes the data and uses multiple control modes to achieve temperature and humidity regulation. When the monitored cabinet temperature is high, the controller controls the exhaust fan to start. The exhaust fan expels air from the cabinet through the air outlet, while outside air enters the cabinet through the air inlet at the bottom, forming a bottom-in, top-out directional convection airflow to achieve cooling. When the monitored cabinet humidity is high, the controller controls the electric damper to close the air outlet through a micro servo motor. The controller then controls the exhaust fan to start. Due to the negative pressure of the exhaust fan, the air inside the cabinet enters through the air inlet slot at the bottom of the first guide shroud and is transported through the air duct to the protective shell containing the semiconductor cooling core. After being cooled by the semiconductor cooling core, the water molecules in the air are liquefied. The liquefied air then re-enters the cabinet through the air outlet slot at the top of the second guide shroud, circulating repeatedly to reduce the humidity inside the cabinet. S3: The liquefied air-water molecules enter the drainage tank through the water inlet tank, and the water is directed out of the cabinet by the water pipe at the bottom of the drainage tank.

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