Efficient and safe intelligent fusion terminal for transformer area

Abstract

This invention belongs to the field of power distribution equipment technology and relates to a high-efficiency and safe intelligent integrated terminal for distribution areas. It includes a housing and a main control module. One side of the housing has an air inlet chamber with a cylindrical damper, and the other side has an air outlet chamber with a hollow, rotating louvered damper. The hollow, rotating louvered damper is connected to a plate heat exchanger in the heating zone inside the housing via a flexible telescopic hose, forming a liquid cooling circulation loop filled with a phase change cooling medium. This loop operates based on the thermosiphon principle; the medium absorbs heat and vaporizes at the heat exchanger, rises to the damper, condenses and releases heat, and then flows back by gravity, achieving passive heat transfer. The main control module intelligently adjusts the damper opening and fan speed based on temperature and humidity sensor data, and actively limits the opening and increases the fan speed to prevent condensation when the humidity is close to the dew point. This invention achieves passive heat dissipation within a sealed housing, combining zero power consumption, high protection, and active anti-condensation characteristics, improving the reliability and safety of the terminal in harsh environments.

Description

Technical Field

[0001] This invention relates to the field of power distribution equipment technology, specifically to a high-efficiency and safe intelligent integrated terminal for distribution transformer areas. Background Technology

[0002] As a key node device in the power distribution network, the intelligent integrated terminal of the distribution area is often deployed in outdoor ring network cabinets, power distribution rooms and other places with harsh environmental conditions.

[0003] To effectively dissipate heat from internal electronic components, existing terminal enclosures often employ forced air cooling or semiconductor cooling technologies. However, forced air cooling requires ventilation holes in the enclosure, allowing dust, moisture, and corrosive gases to easily enter, leading to circuit board corrosion and poor contact over time. While semiconductor cooling can achieve active heat dissipation under sealed conditions, it consumes a lot of power, and the cold end temperature of the cooling element is prone to becoming too low, often causing condensation inside the enclosure in humid environments, which exacerbates electrical safety hazards.

[0004] In view of this, the present invention proposes a high-efficiency and secure intelligent converged terminal for distribution areas, which solves the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] A high-efficiency and safe intelligent integrated terminal for distribution areas includes a housing and a main control module. One side of the housing has an air inlet chamber with a cylindrical damper driven by a first motor inside. The other side of the housing has an air outlet chamber with a hollow, rotating louvered damper inside. The hollow, rotating louvered damper is connected to a plate heat exchanger located in the heating area of ​​electronic components inside the housing via a curved telescopic hose, forming a liquid cooling circulation loop filled with a phase change cooling medium.

[0007] Preferably, the liquid cooling circulation loop operates based on the thermosiphon principle: the cooling medium absorbs heat and vaporizes at the plate heat exchanger, the vapor enters the hollow rotating louvered damper through the telescopic hose and condenses and releases heat, and the condensed liquid medium flows back to the plate heat exchanger under the action of gravity.

[0008] Preferably, the internal cavity of the hollow-type flip-up louver damper is provided with a fin array to increase the internal surface area and enhance the steam condensation efficiency; the outer surface of the hollow-type flip-up louver damper is a high emissivity coating.

[0009] Preferably, the circumferential surface of the cylindrical damper is provided with a sealing section, a microporous section and a grid section; wherein the microporous channels on the microporous section are inclined inward towards the inside of the housing 1 at an angle of - degrees.

[0010] Preferably, the hollow-type flip-out louvered damper is driven by a second motor and can flip between a fully closed position and multiple open positions. When the box is in grid ventilation mode, the main control module controls it to flip to the open position, so that the airflow generated by the fan inside the box sweeps over the outer surface of the hollow-type flip-out louvered damper and carries away heat.

[0011] Preferably, the main control module dynamically adjusts the opening angle of the hollow flip-out louvered damper according to the temperature inside the box. The angle adjustment is coupled with the fan speed control: the higher the temperature, the larger the opening angle and the higher the fan speed, so as to synergistically improve the heat dissipation intensity.

[0012] Preferably, the plate heat exchanger is fitted onto the heat dissipation module of the main control chip inside the chassis, and its contact surface is coated with thermally conductive silicone grease; the telescopic hose is a metal corrugated pipe, and its outer layer is wrapped with heat insulation material.

[0013] Preferably, the liquid cooling circulation loop is further provided with a micro accumulator to accommodate the volume expansion and contraction of the cooling medium due to temperature changes, thereby maintaining stable system pressure.

[0014] Preferably, the main control module is connected to a humidity sensor; when the humidity inside the box is detected to be close to the dew point, the main control module limits the opening angle of the hollow rotating louver damper and increases the minimum speed of the fan to prevent condensation from forming due to excessively low outer surface temperature.

[0015] The beneficial effects of this invention are: This invention utilizes a hollow, rotating louvered damper and a plate heat exchanger to form a thermosiphon circulation loop, achieving passive phase-change heat transfer from the heating element. This completes the transfer of internal heat to the outside of the chamber under zero power consumption, allowing the chamber to operate in a fully sealed state and preventing dust and moisture intrusion. The fin array and high-emissivity coating enhance condensation and radiative heat dissipation efficiency, while the forced airflow generated by the fan further removes heat from the outer surface of the damper, forming a dual internal and external heat dissipation mechanism. The main control module dynamically adjusts the damper opening angle and fan speed based on temperature, achieving precise control of heat dissipation intensity and significantly reducing energy consumption compared to traditional on / off control. A humidity sensor triggers an anti-condensation protection strategy, actively maintaining the damper surface temperature above the dew point by limiting the damper angle and increasing the fan speed, completely eliminating the risk of condensation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. 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.

[0017] in: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure of the housing, air inlet cavity, and cylindrical damper; Figure 3 A schematic diagram of the connection structure of the hollow-type tilting louver damper, the telescopic flexible hose, and the plate heat exchanger. Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 A schematic diagram of the connection structure of a cylindrical damper; Figure 6 A schematic diagram of the internal structure of a hollow, tilting louvered damper; Figure 7 A schematic diagram of the connection structure between the hollow-type flip-up louver damper and the fin array; Figure 8 for Figure 7 Enlarged view of section B in the middle.

[0018] In the picture: 1. Housing; 11. Air inlet cavity; 12. Air outlet cavity; 2. Cylindrical damper; 3. Hollow-out louvered damper; 41. Telescopic flexible hose; 42. Plate heat exchanger; 43. Fin array; 44. High emissivity coating; 45. Miniature accumulator; 51. Sealing section; 52. Microporous section; 53. Grid section; 6. Humidity sensor; 7. Fan. Detailed Implementation

[0019] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention. Example 1:

[0020] like Figures 1-8As shown, a high-efficiency and safe intelligent integrated terminal for distribution areas includes a housing 1 and a main control module. One side of the housing 1 is provided with an air inlet chamber 11, which contains a cylindrical damper 2 driven by a first motor. The other side of the housing 1 is provided with an air outlet chamber 12, which contains a hollow rotating louvered damper 3. The hollow rotating louvered damper 3 is connected to a plate heat exchanger 42 located in the heating area of ​​electronic components inside the housing 1 through a curved telescopic hose 41, together forming a liquid cooling circulation loop, which is filled with a phase change cooling medium.

[0021] The liquid cooling circulation loop works based on the thermosiphon principle: the cooling medium absorbs heat and vaporizes at the plate heat exchanger 42 and rises. The steam enters the hollow flip-out louver damper 3 through the telescopic hose 41, condenses and releases heat, and the condensed liquid medium flows back to the plate heat exchanger 42 under the action of gravity.

[0022] This embodiment includes a heat dissipation and protection system. One side of the terminal's housing 1 has an air inlet chamber 11, inside which is installed a cylindrical damper 2 driven by a first motor for intelligent air intake control. On the other side of the housing 1, an air outlet chamber 12 is provided, inside which is installed a hollow, rotating louvered damper 3, the interior of which is a sealed cavity structure.

[0023] The hollow-type tilting louver damper 3 is connected to the plate heat exchanger 42 via a curved telescopic hose 41. The hollow-type tilting louver damper 3, the telescopic hose 41, and the plate heat exchanger 42 together form a completely closed liquid cooling circulation loop. An appropriate amount of phase change cooling medium (such as fluorinated liquid or acetone) is injected inside.

[0024] When the terminal main control chip starts working and generates heat, the heat is quickly conducted to the plate heat exchanger 42. The cooling medium in the circuit absorbs heat at the plate heat exchanger 42, undergoing a phase change from liquid to gas, expanding in volume, and generating steam. Due to the density difference, the steam rises naturally through the telescopic hose 41 and enters the cavity of the hollow rotating louvered damper 3 located in the air outlet chamber 12. Inside the damper cavity, the steam encounters the cooler cavity wall and recondenses into a liquid state. The condensed droplets, under the action of gravity, collect along the cavity wall and flow back to the telescopic hose 41, eventually returning to the plate heat exchanger 42, completing an autonomous cycle.

[0025] This system achieves passive heat dissipation with virtually no additional moving parts (such as pumps), resulting in near-zero heat dissipation power consumption and high reliability. Simultaneously, since the main heat dissipation component (hollow-type flip-up louvered damper 3) is located outside the housing 1, it efficiently transfers internal heat to the outside for dissipation, allowing the terminal housing 1 to remain completely sealed. This prevents dust and moisture from entering through the heat dissipation holes, resolving the conflict between heat dissipation and protection in traditional heat dissipation solutions. Example 2:

[0026] like Figures 1-8 As shown, a high-efficiency and safe intelligent integrated terminal for transformer substations has a hollow flip-type louvered damper 3 with an internal cavity equipped with a fin array 43 to increase the internal surface area and enhance steam condensation efficiency; the outer surface of the hollow flip-type louvered damper 3 is coated with a high emissivity coating 44.

[0027] To further improve the condensation efficiency in Example 1, this example optimizes the design of the hollow-type rotating louver damper 3. A fin array 43 is installed within its internal cavity, significantly increasing the effective heat exchange surface area during steam condensation.

[0028] Meanwhile, a high-emissivity coating 44 (e.g., a specially treated ceramic coating or high-emissivity black paint) is sprayed onto the outer surface of the hollow-type tilting louver damper 3. This coating can significantly improve the emissivity of the damper's outer surface in the infrared band.

[0029] The internal fin array 43 increases the steam condensation efficiency by more than 30% by increasing the area. The external high-emissivity coating 44 allows the damper to continuously dissipate heat to the external environment through thermal radiation without relying on forced airflow. The combination of internal and external reinforcement measures makes this damper a highly efficient composite radiator, improving the upper limit and response speed of the entire heat dissipation system. Example 3:

[0030] like Figures 1-8 As shown, a high-efficiency and safe intelligent integrated terminal for distribution areas has a cylindrical damper 2 with a sealing section 51, a micro-hole section 52 and a grid section 53 on its circumferential surface; wherein the micro-hole channel on the micro-hole section 52 is inclined towards the inside of the housing 1 at an angle of 10-15 degrees.

[0031] This embodiment describes the structure of the cylindrical damper 2 in the air inlet cavity 11. The cylindrical circumferential surface of the damper is divided into three functional areas: a sealing section 51, a microporous section 52, and a grid section 53.

[0032] Among them, the microporous section 52 has through holes with a diameter of micrometers, and the axis of these microporous channels is not perpendicular to the surface of the damper, but is inclined towards the inside of the box 1 at an angle of 12 degrees.

[0033] When the cylindrical damper 2 rotates and the micro-perforated section 52 is aligned with the air inlet channel, it enters the micro-perforated ventilation mode. At this time, external air can pass through the micro-perforations for limited natural convection, meeting the heat dissipation requirements under low load.

[0034] It is important to note that the design of the microporous segment 52 forms a labyrinthine channel. Dust particles and water droplets coming from the outside are unable to pass directly through the inclined channels due to inertia, while hot air inside the chamber can escape relatively smoothly. This achieves passive dust and splash protection without sacrificing basic air permeability, thus enhancing the terminal's adaptability to harsh environments. Example 4:

[0035] like Figures 1-8 As shown, a high-efficiency and safe intelligent integrated terminal for transformer substations includes a hollow-type flip-type louvered damper 3 driven by a second motor, which can flip between a fully closed position and multiple open positions. When the housing 1 is in grid ventilation mode, the main control module controls it to flip to the open position, so that the airflow generated by the fan 7 inside the housing sweeps across the outer surface of the hollow-type flip-type louvered damper 3 and carries away the heat.

[0036] The main control module dynamically adjusts the opening angle of the hollow flip-out louvered damper 3 according to the temperature inside the box. The angle adjustment is coupled with the speed control of the fan 7: the higher the temperature, the larger the opening angle and the higher the speed of the fan 7, so as to jointly improve the heat dissipation intensity.

[0037] In this embodiment, the hollow-type flip-type louvered damper 3 is driven by a second motor and can be flexibly flipped at multiple angles between 0 degrees (completely closed and tightly attached to the air outlet 12) and 90 degrees.

[0038] When the temperature sensor inside the chamber detects an increase in temperature, and the main control module determines that it needs to enter the grid ventilation mode, it will perform coordinated control: First, it controls the cylindrical damper 2 of the air inlet chamber 11 to rotate until the grid section 53 is fully open; at the same time, it controls the hollow flip-out louver damper 3 of the air outlet chamber 12 to flip open to, for example, a 30-degree angle; then, it starts the fan 7 inside the chamber.

[0039] The airflow generated by fan 7 flows into the air inlet chamber 11, carries away some heat after passing through the inside of the housing 1, and is discharged from the air outlet chamber 12. At this time, the airflow will fully sweep over the outer surface of the hollow rotating louvered damper 3 with a high emissivity coating 44, and use forced convection to efficiently carry away the heat absorbed from the inside, realizing the dual superposition of internal circulation heat dissipation and external air cooling, thus enhancing the heat dissipation capacity.

[0040] Furthermore, the system monitors the internal temperature in real time and adjusts the opening angle of the hollow-type tilting louver damper 3 and the speed of the fan 7 accordingly. For example, when the temperature rises from 40°C to 50°C, the angle of the hollow-type tilting louver damper 3 can be adjusted from 30 degrees to 60 degrees, and the speed of the fan 7 can be increased from 1500 rpm to 2500 rpm. This coupled control of angle and speed allows the system to match real-time heat dissipation needs with optimal energy consumption, achieving refined and intelligent management of heat dissipation intensity, which is impossible with traditional on / off control. Example 5:

[0041] like Figures 1-8 As shown, a high-efficiency and safe intelligent converged terminal for distribution areas has a plate heat exchanger 42 that is fitted onto the heat dissipation module of the main control chip inside the chassis, with its contact surface coated with thermally conductive silicone grease; the telescopic flexible hose 41 is a metal corrugated pipe, with its outer layer wrapped with heat insulation material.

[0042] The liquid cooling circulation loop is also equipped with a miniature pressure accumulator 45, which is used to accommodate the volume expansion and contraction of the cooling medium due to temperature changes, and maintain the stability of the system pressure.

[0043] To ensure the long-term stability and reliability of the thermosiphon system, this embodiment specifies the implementation details of key components. The plate heat exchanger 42 is made of high thermal conductivity aluminum alloy.

[0044] The connecting flexible hose 41 is made of stainless steel corrugated tubing, with an outer layer wrapped in high-temperature resistant insulating material (such as fiberglass sheath). The miniature accumulator 45 is made of a highly elastic alloy diaphragm and is installed in a relatively undisturbed location in the circuit.

[0045] The metal bellows ensures flexibility at the connection point when the damper 3 is repeatedly rotated, and the outer insulation layer effectively reduces heat loss in the delivery pipeline, maximizing heat transfer to the damper end for dissipation. The miniature accumulator 45 can actively absorb internal pressure fluctuations in the circuit caused by medium phase changes and temperature variations, maintaining the system pressure within the designed safe range and eliminating the risk of interface leakage or component damage due to thermal expansion and contraction. Example 6:

[0046] like Figures 1-8 As shown, a high-efficiency and safe intelligent integrated terminal for transformer substations has a main control module connected to a humidity sensor 6. When the humidity inside the box is detected to be close to the dew point, the main control module limits the opening angle of the hollow flip-type louvered damper 3 and increases the minimum speed of the fan 7 to prevent its outer surface temperature from being too low, which would cause condensation to occur.

[0047] To cope with high humidity environments, this embodiment introduces an intelligent anti-condensation strategy. The main control module receives dew point temperature data of the air inside the chamber collected by the humidity sensor 6 in real time and compares it with the estimated temperature of the outer surface of the hollow rotating louvered damper 3 (which can be calculated based on the condensation temperature of the internal medium).

[0048] When the system determines that the outer surface temperature of the hollow-type flip-out louver damper 3 may be lower than the dew point temperature of the air inside the box under the current environment, the main control module activates the protection logic: limiting the maximum allowable opening angle of the hollow-type flip-out louver damper 3 (for example, limiting it from a maximum of 90 degrees to 30 degrees), and instructing the fan 7 to maintain a high base speed (for example, 1000 rpm).

[0049] Limiting the angle of the hollow-type flip-out louvered damper 3 reduces the contact area and exposure time between the low-temperature heat dissipation surface and the high-humidity air; increasing the fan speed 7 accelerates the air circulation inside the chamber, making it less likely for a stagnant layer of low-temperature, high-humidity air to form on the surface of the hollow-type flip-out louvered damper 3. Without excessively affecting heat dissipation, it actively ensures that the surface temperature of the radiator is always above the dew point temperature, thus preventing the possibility of condensation on key heat dissipation components or the inner wall of the chamber 1 in any humid weather. This solves the condensation problem inherent in traditional semiconductor cooling solutions and greatly improves the operational safety and reliability of the terminal in humid areas with large diurnal temperature variations.

[0050] Work process: During operation, the main control module enters a continuous monitoring state, receiving in real time data from temperature sensors located in the heating area of ​​electronic components, relative humidity data collected by humidity sensor 6 inside the box, and pressure feedback signals preset in the loop.

[0051] When the terminal is under light load or the ambient temperature is low, the main control module determines that there is no need to introduce external airflow. It then controls the cylindrical damper 2 in the air inlet chamber 11 to rotate, driven by the first motor, so that the sealing section 51 on its circumferential surface is precisely aligned with the air inlet channel. At this time, the housing 1 is in a completely sealed mode. In this mode, although there is no forced convection, heat dissipation does not stop: the plate heat exchanger 42 located in the heat-generating zone continuously absorbs the heat generated by the main control chip and other components. The phase change cooling medium inside it begins to vaporize after being heated, and the steam rises naturally through the curved telescopic hose 41, entering the internal cavity of the hollow rotating louver damper 3 in the air outlet chamber 12. This cavity is equipped with a fin array 43, whose huge specific surface area allows the steam to condense and release heat rapidly. The condensate flows back to the plate heat exchanger 42 through the telescopic hose 41 under gravity, completing one passive cycle. The heat released by condensation is dissipated to the external environment in the form of thermal radiation through the high emissivity coating 44 on the outer surface of the hollow rotating louver damper 3. It achieves zero-power heat dissipation while maintaining the complete airtightness of the enclosure 1, preventing dust intrusion.

[0052] As the load increases or the external ambient temperature rises, the internal temperature gradually increases to the first threshold. The main control module, based on the temperature change rate, determines to activate forced ventilation for cooling. It first controls the cylindrical damper 2 to rotate, engaging its microporous section 52. The microporous channels on the microporous section 52 are inclined inwards at a 10-15 degree angle towards the inside of the housing 1. This design allows limited convection of external air through the micropores, while the inclined channels effectively block incoming dust particles, achieving a balance between ventilation and dust prevention. If the temperature continues to rise and exceeds the second threshold, the main control module further rotates the cylindrical damper 2 to the grid section 53 to obtain the maximum ventilation cross-sectional area. Simultaneously, the main control module activates the fan 7 and controls the hollow rotating louvered damper 3 in the air outlet chamber 12, driven by the second motor, to rotate to a preset opening angle, ensuring unobstructed airflow.

[0053] In this grid ventilation mode, the heat dissipation system enters a coordinated internal and external state. On one hand, the thermosiphon internal circulation continues: the plate heat exchanger 42 absorbs heat to vaporize the medium, and the steam enters the hollow rotating louver damper 3 through the telescopic hose 41. The condensation is enhanced by the fin array 43, and the heat released by condensation raises the temperature of the hollow rotating louver damper 3. On the other hand, the forced airflow generated by the fan 7 enters from the air inlet chamber 11, flows through the inside of the housing 1, and exits from the air outlet chamber 12. During the flow, the airflow sweeps at high speed over the outer surface of the hollow rotating louver damper 3, and the heat absorbed by the damper from the inside is quickly carried away through convection heat transfer. The combination of internal circulation phase change heat transfer and external circulation convection improves the heat dissipation efficiency.

[0054] Based on real-time temperature feedback, the main control module adjusts the opening angle of the hollow-type rotating louvered damper 3, and simultaneously controls the fan speed in conjunction with the fan speed: the higher the temperature, the larger the opening angle of the hollow-type rotating louvered damper 3, and the fan speed also increases accordingly. This ensures that the system always matches the real-time heat dissipation requirements with optimal energy consumption, avoiding the energy waste or insufficient heat dissipation of traditional on / off control.

[0055] When humidity sensor 6 detects that the humidity inside the chamber is close to the dew point temperature, the main control module immediately activates the anti-condensation protection logic. It actively limits the maximum allowable opening angle of the hollow-type tilting louver damper 3 to prevent the low-temperature heat dissipation surface from being excessively exposed to high-humidity air; simultaneously, it instructs fan 7 to maintain a high base speed, accelerating air circulation inside the chamber and disrupting the microenvironment that could lead to condensation. This ensures that under any humid conditions, the outer surface temperature of the hollow-type tilting louver damper 3 remains above the dew point, eliminating the possibility of condensation forming inside the chamber 1.

[0056] 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 illustrative of the 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 protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and safe intelligent integrated terminal for distribution areas, comprising a housing (1) and a main control module, wherein an air inlet cavity (11) is provided on one side of the housing (1), and a cylindrical air damper (2) driven by a first motor is provided inside the cavity; characterized in that, The other side of the housing (1) is provided with an air outlet cavity (12), which contains a hollow rotating louvered damper (3); the hollow rotating louvered damper (3) is connected to the plate heat exchanger (42) located in the heating area of ​​the electronic components in the housing (1) through a curved telescopic hose (41), together forming a liquid cooling circulation loop, which is filled with a phase change cooling medium.

2. The high-efficiency and secure intelligent converged terminal for distribution areas according to claim 1, characterized in that, The liquid cooling circulation loop works based on the thermosiphon principle: the cooling medium absorbs heat and vaporizes at the plate heat exchanger (42) and rises. The steam enters the hollow flip-out louver damper (3) through the telescopic hose (41) and condenses and releases heat. The condensed liquid medium flows back to the plate heat exchanger (42) under the action of gravity.

3. The high-efficiency and secure intelligent converged terminal for distribution areas according to claim 2, characterized in that, The hollow-type flip-out louver damper (3) has an internal cavity with a fin array (43) to increase the internal surface area and enhance the steam condensation efficiency; the outer surface of the hollow-type flip-out louver damper (3) is a high emissivity coating (44).

4. The high-efficiency and secure intelligent converged terminal for distribution areas according to claim 3, characterized in that, The cylindrical damper (2) has a sealing section (51), a microporous section (52) and a grid section (53) on its circumferential surface; wherein the microporous channel on the microporous section (52) is inclined to the inside of the box (1) at an angle of 10-15 degrees.

5. The high-efficiency and secure intelligent converged terminal for distribution areas according to claim 4, characterized in that, The hollow-type flip-out louvered damper (3) is driven by a second motor and can flip between a fully closed position and multiple open positions. When the box (1) is in grid ventilation mode, the main control module controls it to flip to the open position, so that the airflow generated by the fan (7) inside the box sweeps over the outer surface of the hollow-type flip-out louvered damper (3) and carries away the heat.

6. The high-efficiency and secure intelligent converged terminal for distribution areas according to claim 5, characterized in that, The main control module dynamically adjusts the opening angle of the hollow flip-out louvered damper (3) according to the temperature inside the box. The angle adjustment is coupled with the speed control of the fan (7): the higher the temperature, the larger the opening angle and the higher the speed of the fan (7), so as to improve the heat dissipation intensity in a coordinated manner.

7. The high-efficiency and secure intelligent converged terminal for distribution areas according to claim 1, characterized in that, The plate heat exchanger (42) is fitted onto the heat dissipation module of the main control chip inside the chassis, and its contact surface is coated with thermal grease; the telescopic hose (41) is a metal corrugated pipe, and its outer layer is wrapped with heat insulation material.

8. The high-efficiency and secure intelligent converged terminal for distribution areas according to claim 1, characterized in that, The liquid cooling circulation loop is also equipped with a micro accumulator (45) to accommodate the volume expansion and contraction of the cooling medium due to temperature changes, and to maintain the stability of the system pressure.

9. The high-efficiency and secure intelligent converged terminal for distribution areas according to claim 1, characterized in that, The main control module is connected to a humidity sensor (6); when the humidity inside the box is detected to be close to the dew point, the main control module limits the opening angle of the hollow flip-out louver damper (3) and increases the minimum speed of the fan (7) to prevent the outer surface temperature from being too low, which would cause condensation to occur.

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