Intelligent heat dissipation device for prepackaged transformer substation

Abstract

This invention discloses an intelligent heat dissipation device for prefabricated substations, relating to the field of substation heat dissipation technology. It includes a housing and a top cover. A fan assembly is installed on one side of the housing. An air outlet is provided on the top cover, and a cover is movably mounted on the air outlet. The side of the cover facing the housing is open, and a filter screen is provided on the other side. Several ventilation slots are spaced around the perimeter of the cover. A limiting frame is arranged around the outer edge of the open side of the cover, and sliding pillars are fixed at the four corners of the limiting frame. A circular hole is provided on the top cover corresponding to the sliding pillar. A limiting block is fixed to one end of the sliding pillar extending beyond the circular hole. A first spring is sleeved on the outside of the sliding pillar. One end of the first spring is connected to the limiting frame, and the other end of the first spring is connected to the top cover, with a force sensor installed at the connection end. This invention achieves linkage between ventilation and heat dissipation and automatic pressure relief, resulting in high operational stability.

Description

Technical Field

[0001] This invention relates to the field of substation heat dissipation technology, specifically to an intelligent heat dissipation device for prefabricated substations. Background Technology

[0002] Prefabricated substations, also known as box-type substations, are modular sets of power equipment that integrate high-voltage power distribution equipment, transformers, low-voltage power distribution equipment, and measurement and control protection devices. They have advantages such as high integration, small footprint, convenient installation, and strong adaptability, and are widely used in various power scenarios such as urban power distribution networks, industrial parks, new energy power plants, residential communities, and outdoor infrastructure.

[0003] With the advancement of the construction of new power systems, prefabricated substations generally face the conditions of increased operating load and extended continuous working time. During the operation of the equipment, core components such as transformers, high and low voltage switches, and busbars will continuously generate a large amount of heat. If the heat cannot be dissipated in a timely and effective manner, it is very easy to cause problems such as heat accumulation inside the enclosure and local overheating.

[0004] Currently, most prefabricated substations on the market adopt traditional fixed cooling solutions, mainly divided into two modes: natural ventilation cooling and fixed-speed mechanical forced cooling. Natural ventilation relies on louvers and natural air ducts to achieve air convection cooling. While structurally simple, its cooling efficiency is extremely low and highly susceptible to external factors such as ambient temperature, wind speed, and weather. It can only meet the basic cooling needs of equipment under light load and low-temperature conditions. Fixed-fan forced cooling, while improving cooling efficiency, operates in a single mode. The fans typically operate at a constant speed year-round, unable to dynamically adjust cooling power based on real-time equipment temperature and operating load. Continuous operation under low-temperature, light-load conditions results in significant energy waste and high equipment energy costs. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent heat dissipation device for prefabricated substations to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an intelligent heat dissipation device for prefabricated substations, comprising a frame, a housing surrounding the frame, a top cover mounted on the top of the frame, a fan assembly mounted on one side of the housing for inputting airflow into the housing, an air inlet window corresponding to the fan assembly on the housing, an air outlet window on the top cover, a cover movably mounted on the air outlet window, the side of the cover facing the housing being open, a filter screen mounted on the other side of the cover, several ventilation slots spaced apart around the cover, a limiting frame surrounding the outer edge of the open side of the cover, sliding pillars fixed at the four corners of the limiting frame, a circular hole corresponding to the sliding pillar on the top cover, the sliding pillar slidingly engaging with the circular hole, a limiting block fixed at one end of the sliding pillar extending out of the circular hole, a first spring sleeved on the outside of the sliding pillar, one end of the first spring connected to the limiting frame, the other end of the first spring connected to the top cover, and a force sensor mounted at the connection end.

[0007] According to the above technical solution, the enclosure is equipped with pressure and temperature sensors to monitor the internal pressure and temperature.

[0008] According to the above technical solution, the fan assembly includes a housing, an installation plate is fixed inside the housing, a fan is installed on the installation plate, the air inlet side of the fan faces the outside of the housing, the air outlet side of the fan faces the air inlet window, and a dust filter module is provided between the fan and the air inlet window.

[0009] According to the above technical solution, an array of support members are spaced apart on the upper side of the top cover. The opposite side of each set of support members is higher than the other side. Corrugated tile sheets are mounted on the support members. The surface of the corrugated tile sheets has a continuous vertical corrugated structure. Two full-length, flat, and non-corrugated cover plates are set in the middle of the upper side of the corrugated tile sheets.

[0010] According to the above technical solution, the frame is provided with a liquid receiving mechanism at the drainage end of the corrugated tile plate. The liquid receiving mechanism includes a liquid receiving tank. A grid plate is mounted on the upper side of the liquid receiving tank. The end of the grid plate near the corrugated tile plate is higher than the other end. Downflow outlets are opened at the bottom of both ends of the liquid receiving tank.

[0011] According to the above technical solution, the downstream outlet is connected to a connecting pipe, which runs vertically and is internally connected to a sliding box. The sliding box is a hollow structure with several sliding grooves on its inner wall. A sliding frame is slidably installed inside the sliding box. The sliding frame runs vertically and is equipped with a slider corresponding to the sliding groove. The slider and the sliding groove slide together. Several through grooves are opened on the circumference of the sliding frame surface. A second spring is connected between the bottom of the sliding frame and the bottom of the sliding box.

[0012] According to the above technical solution, the sliding box has an upper liquid outlet and a lower liquid outlet on the two sides of the box body, respectively. The upper liquid outlet is higher than the lower liquid outlet. The upper liquid outlet is connected to a first adapter pipe, and the lower liquid outlet is connected to a second adapter pipe. The other ends of the first adapter pipe and the second adapter pipe extend into the box body, and the upper liquid outlet and the lower liquid outlet correspond to the through groove.

[0013] According to the above technical solution, the other end of the first transfer pipe is set vertically downward to guide rainwater to the ground. Several containment covers are set at intervals on the vertical pipe of the first transfer pipe. The first transfer pipe is connected to each containment cover. A drive rod is passed through the containment cover. Several drive blades are connected to the circumference of the surface of the drive rod. The drive rod and the containment cover are rotatably connected. One end of the drive rod facing the inside of the box is connected to a connecting rod. The other end of the connecting rod extends out of the surface of the containment cover and is connected to several fan blades on the circumference.

[0014] According to the above technical solution, the other end of the second transfer pipe is connected to a cooling pipe. The cooling pipe is equipped with a multi-section meandering and bending structure. The outlet end of the cooling pipe is connected to a drain pipe. The other end of the drain pipe is set vertically downward to guide rainwater to the ground.

[0015] According to the above technical solution, a transformer assembly is installed inside the enclosure.

[0016] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: This invention achieves orderly ventilation and heat dissipation inside the enclosure by setting a filter screen, and the fan assembly continuously supplies fresh air, which can stably remove the operating heat of the equipment and ensure constant temperature operation of the equipment inside the enclosure. When the filter screen is clogged with dust and the exhaust is obstructed due to long-term use, the air pressure inside the enclosure can automatically push the cover up, exposing the ventilation slots on the side wall above the top cover, automatically opening a high-flow pressure relief channel, and quickly releasing the high-pressure hot air inside the enclosure. This effectively solves the problems of exhaust blockage, internal overpressure, and overheating that are prone to occur in traditional enclosed electrical enclosures, avoiding equipment failure and aging due to high temperature and high pressure, and greatly improving the safety and stability of equipment operation. At the same time, the force sensor matched with the first spring can monitor the exhaust resistance in real time, accurately predict the filter screen blockage status, and realize the monitoring of the equipment operation status.

[0017] Equipped with a liquid-receiving mechanism and an internal spring-loaded sliding channel guide structure, the drainage channel can adaptively adjust according to the rainwater flow rate: under normal light rain conditions, a single channel drainage is sufficient; under heavy rain and high-flow conditions, the water flow impact drives the slide to move downward, opening dual channels for simultaneous drainage, significantly improving rainwater discharge efficiency and preventing rainwater accumulation and backflow. It perfectly adapts to different rainfall intensities, demonstrating extremely strong environmental adaptability. Meanwhile, traditional equipment often shuts down its fans during rainy weather, easily leading to heat and humidity buildup and heat dissipation failure within the enclosure. This equipment utilizes the gravitational potential energy of falling rainwater, requiring no additional electricity to drive the drive blades, connecting rods, and fan blades to rotate. This creates airflow turbulence within the enclosure, concentrating internal airflow and accelerating air circulation for passive air cooling. Simultaneously, the included circuitous cooling pipes extend the rainwater heat exchange path, achieving auxiliary cooling through heat exchange between rainwater and the interior of the enclosure. The dual passive heat dissipation structure replaces the fan, significantly reducing equipment energy consumption and effectively solving the problems of fan shutdown in rainy weather and excessive temperature and humidity inside the box, ensuring all-weather heat dissipation. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the heat dissipation device of the present invention; Figure 2 This is a cross-sectional view of the fan assembly of the present invention; Figure 3 This is a partial cross-sectional view of the top cover of the present invention; Figure 4 This is a cross-sectional view of the casing of the present invention; Figure 5 This is the present invention. Figure 4 Enlarged diagram of area A; Figure 6 This is a cross-sectional view of the liquid receiving tank of the present invention; Figure 7 This is a partial structural schematic diagram of the liquid receiving mechanism of the present invention; Figure 8 This is a partial cross-sectional view of the liquid receiving mechanism of the present invention; Figure 9 This is the present invention. Figure 8 Enlarged schematic diagram of area B; Figure 10 This is a cross-sectional view of the connecting pipe, sliding box, and sliding frame of the present invention; Figure 11 This is a partial structural schematic diagram of the first transfer tube of the present invention.

[0019] In the diagram: 1. Frame; 2. Housing; 21. Air inlet window; 3. Top cover; 4. Fan assembly; 41. Housing; 42. Mounting plate; 43. Fan; 44. Dust filter module; 5. Cover; 51. Filter screen; 52. Ventilation slot; 53. Limiting frame; 54. Sliding column; 55. Limiting block; 56. First spring; 6. Support component; 61. Corrugated sheet; 62. Cover plate; 7. Liquid receiving mechanism; 71. Liquid receiving trough; 72. Grille plate; 73. Connecting pipe; 74. Sliding box; 741. Sliding groove; 75. Sliding frame; 751. Sliding block; 752. Through groove; 753. Second spring; 76. First adapter pipe; 761. Receiving cover; 762. Drive rod; 763. Drive blade; 764. Connecting rod; 765. Fan blade; 77. Second adapter pipe; 771. Cooling pipe; 772. Drain pipe. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-11 The present invention provides a technical solution: an intelligent heat dissipation device for prefabricated substations, comprising a frame 1, a housing 2 surrounding the frame 1, a top cover 3 mounted on the upper side of the frame 1, a fan assembly 4 mounted on one side of the housing 2 for inputting airflow into the housing 2, an air inlet window 21 corresponding to the fan assembly 4 in the housing 2, an air outlet window in the top cover 3, and a cover 5 movably mounted on the air outlet window. The side of the cover 5 facing the housing 2 is open, and a filter screen 5 is provided on the other side of the cover 5. 1. Several ventilation slots 52 are spaced apart around the cover 5. A limiting frame 53 is arranged around the outer edge of the open side of the cover 5. Sliding posts 54 are fixed at the four corners of the limiting frame 53. The top cover 3 has a round hole corresponding to the sliding post 54. The sliding post 54 slides with the round hole. A limiting block 55 is fixed at one end of the sliding post 54 that extends out of the round hole. A first spring 56 is sleeved on the outside of the sliding post 54. One end of the first spring 56 is connected to the limiting frame 53. The other end of the first spring 56 is connected to the top cover 3 and a force sensor is provided at the connection end.

[0022] It should be noted that the housing 2 is equipped with pressure and temperature sensors to monitor the internal pressure and temperature. Under normal operating conditions, the casing 5 hangs downwards from the lower surface of the top cover 3 under its own weight, the first spring 56 remains naturally extended, and the limiting block 55 presses firmly against the upper surface of the top cover 3. At this time, all the ventilation slots 52 on the outer periphery of the casing 5 are located below the top cover 3, and the only gas flow channel between the inside and outside of the housing 2 is the filter screen 51. The fan assembly 4 supplies airflow into the housing 2 through the air inlet window 21. After the airflow carries away the heat generated by the equipment, it can only pass through the filter screen 51 and be discharged outwards. On the other hand, when the filter screen 51 is clogged with dust and the airflow is obstructed, the air pressure inside the box 2 continues to rise, pushing the cover 5 upward and causing the sliding column 54 to slide upward synchronously. The first spring 56 is compressed and contracted. As the cover 5 is raised as a whole, the side wall ventilation groove 52 moves synchronously to the area above the top cover 3. The high-pressure airflow inside the box 2 can then be quickly released to the outside through the ventilation groove 52 to achieve pressure relief and ventilation, and avoid heat accumulation and overpressure inside the box.

[0023] Furthermore, such as Figure 2As shown, the fan assembly 4 includes a housing 41, an installation plate 42 is fixed inside the housing 41, a fan 43 is installed on the installation plate 42, the air inlet side of the fan 43 faces the outside of the housing 2, the air outlet side of the fan 43 faces the air inlet window 21, and a dust filter module 44 is provided between the fan 43 and the air inlet window 21.

[0024] In actual operation, during equipment operation, fan 43 draws in outside air from the housing 2 and delivers it into the housing 2. When the airflow passes through dust filter module 44, dust and impurities mixed in the air will be trapped and filtered by dust filter module 44. The dust filter module 44 can be made of activated carbon adsorption plates or other structures, and its structural form is not limited to one specific type.

[0025] Preferably, an array of support members 6 are spaced apart on the upper side of the top cover 3, with one side of each support member 6 being higher than the other side. A corrugated tile 61 is mounted on the support member 6. The surface of the corrugated tile 61 has a continuous vertical corrugated structure. Two full-length, flat, and non-corrugated cover plates 62 are provided in the middle of the upper side of the corrugated tile 61.

[0026] In actual operation, the corrugated roofing sheet 61 forms a unidirectional inclined slope based on the support members 6 arranged at varying heights, achieving unilateral drainage. The corrugated grooves on the sheet form a water guiding channel, which can quickly divert rainwater to the lower eaves, effectively preventing water accumulation and leakage at the top of the box 2. The corrugated roofing sheet 61 is arranged horizontally along its entire length, and the joints of the sheet overlap and seal each other, further blocking the seepage path. The two cover plates 62 in the middle have multiple functions: firstly, they are structural reinforcements, which segmentally restrain the corrugated roofing sheet 61 to resist warping and deformation caused by wind pressure and the weight of the sheet; secondly, they can seal the gaps between the sheets, preventing rainwater from seeping into the interior of the box 2 through the gaps between the sheets.

[0027] In one embodiment, such as Figure 6 , Figure 7 As shown, the frame 1 is provided with a liquid receiving mechanism 7 at the drainage end of the corrugated tile plate 61. The liquid receiving mechanism 7 includes a liquid receiving tank 71. A grid plate 72 is mounted on the upper side of the liquid receiving tank 71. One end of the grid plate 72 near the corrugated tile plate 61 is higher than the other end. Downflow outlets are opened at the bottom of both ends of the liquid receiving tank 71.

[0028] like Figure 8 , Figure 9 As shown, the downstream outlet is connected to a connecting pipe 73, which runs vertically through the outlet and is internally connected to a sliding box 74. The sliding box 74 is a hollow structure with several grooves 741 on its inner wall. A slide frame 75 is slidably installed inside the sliding box 74. The slide frame 75 runs vertically through the outlet and is equipped with a slider 751 corresponding to the groove 741. The slider 751 slides in conjunction with the groove 741. Several through slots 752 are provided on the circumference of the surface of the slide frame 75. A second spring 753 is connected between the bottom of the slide frame 75 and the bottom of the sliding box 74.

[0029] like Figure 10 As shown, the sliding box 74 has an upper liquid outlet and a lower liquid outlet on the two sides of the box body 2, respectively. The upper liquid outlet is higher than the lower liquid outlet. The upper liquid outlet is connected to a first adapter pipe 76, and the lower liquid outlet is connected to a second adapter pipe 77. The other ends of the first adapter pipe 76 and the second adapter pipe 77 extend into the box body 2, respectively. The upper liquid outlet and the lower liquid outlet correspond to the through groove 752.

[0030] The following is a supplementary explanation based on the above structure: During rainy weather, the receiving trough 71 is used to collect rainwater flowing out of the drainage end of the corrugated tile plate 61, and the grating plate 72 is used to intercept any large-volume impurities that may be present in the rainwater. After being temporarily stored in the receiving trough 71, the rainwater is transferred from the downflow ports on both sides to the connecting pipe 73 and flows into the carriage 75. Under normal flow conditions, the carriage 75 is supported by the second spring 753, and under normal flow conditions, although the carriage 75 moves slightly downward within the sliding box 74, the through groove 752 always corresponds to the upper outlet. At this time, the rainwater is transferred from the first transfer pipe 76. If a heavy rain occurs, the excessive flow impacts the carriage 75, and the second spring 753 is further compressed, so that both the upper and lower outlets correspond to the through groove 752. At this time, the rainwater is transferred from the first transfer pipe 76 and the second transfer pipe 77, respectively.

[0031] like Figure 11 As shown, the other end of the first adapter pipe 76 is set vertically downward to guide rainwater to the ground. Several receiving covers 761 are spaced apart on the vertical pipe of the first adapter pipe 76. The first adapter pipe 76 is connected to each receiving cover 761. A drive rod 762 is passed through the receiving cover 761. Several drive blades 763 are circumferentially connected to the surface of the drive rod 762. The drive rod 762 is rotatably engaged with the receiving cover 761. One end of the drive rod 762 facing the inside of the box 2 is connected to a connecting rod 764. The other end of the connecting rod 764 extends out of the surface of the receiving cover 761 and is circumferentially connected to several fan blades 765.

[0032] The other end of the second transfer pipe 77 is connected to a cooling pipe 771. The cooling pipe 771 has a multi-section meandering and bending structure. The outlet end of the cooling pipe 771 is connected to a drain pipe 772. The other end of the drain pipe 772 is set vertically downward to the ground to guide rainwater to the ground.

[0033] It should be further explained that: the liquid entering the first transfer pipe 76 impacts the drive blades 763 downwards, causing them to rotate. Simultaneously, the drive rod 762 drives the connecting rod 764 to rotate, thereby driving the fan blades 765 to rotate. This can be used in rainy weather when the fan assembly 4 is inconvenient to operate, preventing increased internal humidity. Utilizing the potential energy of falling rainwater to drive the fan blades 765 can create turbulence within the housing 2, diverting airflow from the periphery to the center to improve heat dissipation. On the other hand, the cooling pipe 771 is used to increase the length of the liquid flow channel, allowing for heat exchange between the rainwater and the interior of the housing 2, thus aiding in heat dissipation.

[0034] The transformer assembly is installed inside enclosure 2.

[0035] The temperature sensor, pressure sensor, and force sensor at the end of the first spring 56, installed inside the enclosure 2, enable real-time acquisition of multiple parameters. Combined with the fan assembly 4, automatic pressure relief cover 5, rain-fighting hydraulic turbulence heat dissipation, and rainwater heat exchange cooling structure, a multi-condition adaptive intelligent heat dissipation control logic is formed. It can automatically switch the heat dissipation mode according to the internal temperature, pressure, filter clogging status, and weather conditions. The specific control method is as follows: Temperature sensor: Real-time acquisition of the internal ambient temperature of the enclosure 2, setting the normal temperature threshold T1, high temperature warning threshold T2, and over-temperature fault threshold T3; Pressure sensor: Real-time acquisition of the sealed air pressure inside the enclosure 2, used to determine the ventilation and pressure relief status inside the enclosure; Force sensor: Real-time acquisition of the support pressure value of the first spring 56, indirectly detecting the force on the cover 5, the degree of filter blockage, and the exhaust resistance.

[0036] Under normal operating conditions (no rain), the liquid receiving mechanism 7 has no water flow and the hydraulic cooling structure does not work. The cooling is mainly achieved by forced air cooling from the fan.

[0037] 1. When the temperature sensor detects that the temperature inside the chamber 2 is ≤T1 (normal temperature range): the system determines that the equipment is operating under light load, the fan assembly 4 maintains low-speed intermittent operation to maintain air circulation inside the chamber 2 and reduce energy consumption; at this time, the pressure detected by the force sensor is the standard reference value, the cover 5 is in the sunken and closed state, the ventilation slot 52 is closed, and the chamber 2 only exhausts air normally through the filter screen 51.

[0038] 2. When the temperature sensor detects that the temperature is between T1 and T2 (temperature rise range): the system automatically increases the speed of the fan assembly 4, increases the air intake, enhances the convection heat dissipation inside the housing 2, quickly removes the working heat of the equipment, and stabilizes the temperature inside the housing 2.

[0039] 3. When the temperature sensor detects a temperature ≥ T2 (high temperature warning): the fan assembly 4 operates continuously at full load, and at the same time the system compares the data from the pressure sensor and the force sensor in real time to monitor the ventilation.

[0040] The system features intelligent pressure relief control for filter clogging and overpressure heat accumulation (adaptive heat dissipation). It uses both pressure and force sensors to identify filter clogging faults and automatically relieves pressure to dissipate heat.

[0041] 1. When the filter screen 51 is clogged with dust, the exhaust resistance increases and the airflow inside the housing 2 cannot be discharged normally. The pressure sensor detects that the air pressure inside the housing 2 continues to rise. At the same time, the force sensor detects that the pressure value of the first spring 56 continues to rise. The control system determines that the filter screen is clogged and the exhaust is blocked.

[0042] 2. The high-pressure gas inside the chamber 2 pushes the cover 5 upward, compressing the first spring 56. The ventilation slot 52 is exposed above the top cover 3, automatically opening the pressure relief ventilation channel, increasing the exhaust area, and quickly releasing the high-temperature and high-pressure gas to solve the problems of heat accumulation and overpressure inside the chamber 2.

[0043] 3. When the pressure sensor detects that the air pressure has dropped back to the normal range and the pressure value of the force sensor has returned to the reference value, it indicates that the resistance to the blocked ventilation has decreased. Under the action of gravity and the reset action of the first spring 56, the cover 5 automatically falls back, the ventilation slot 52 is re-closed, and the equipment returns to the normal ventilation and heat dissipation mode.

[0044] 4. If the force sensor detects a high pressure value for a long time and the temperature remains high, the system determines that the filter screen 51 and the dust filter module 44 are severely clogged and can output an early warning signal to remind maintenance personnel to replace the dust filter module 44 and the filter screen 51.

[0045] Intelligent heat dissipation control in rainy weather (fan shutdown, passive heat dissipation mode): In rainy and humid environments, in order to prevent the fan assembly 4 from drawing in humid air and aggravating condensation and corrosion of components inside the housing 2, the fan assembly 4 is locked and shut down. Relying on multi-sensor monitoring, the passive intelligent heat dissipation mode of rainwater potential energy turbulence heat dissipation + water cooling heat exchange heat dissipation is activated.

[0046] 1. Normal light rain conditions: Rainwater is guided by the corrugated sheet 61, collected by the drip tray 71, and then enters the first transfer pipe 76. The water flow impacts and drives the blades 763 to rotate the fan blades 765, creating continuous air turbulence within the housing 2. This disrupts localized heat accumulation and accelerates the exchange of heat and cold within the housing 2. A temperature sensor monitors the temperature inside the housing 2 in real time. If the temperature drops slowly, the system continuously optimizes the internal airflow field based on the turbulence structure to prevent the accumulation of moisture and heat.

[0047] 2. Heavy Rain Flow Condition: As the rainwater flow increases, the second spring 753 is compressed, the slide 75 moves downward, and the upper and lower liquid outlets are simultaneously connected, allowing rainwater to enter the first transfer pipe 76 and the second transfer pipe 77 respectively. On one hand, the high-speed rotation of the fan blades 765 enhances the turbulence and heat dissipation inside the housing 2; on the other hand, the rainwater flows through the multi-section, meandering cooling pipe 771, fully exchanging heat with the internal space of the housing 2, using the low-temperature rainwater to carry away the heat inside the housing 2, achieving passive forced cooling.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent heat dissipation device for prefabricated substations, comprising a frame (1), characterized in that, The frame (1) is surrounded by a box (2), and a top cover (3) is mounted on the upper side of the frame (1). A fan assembly (4) is installed on one side of the box (2) to input airflow into the box (2). An air inlet window (21) is opened at the corresponding position of the box (2) in conjunction with the fan assembly (4). An air outlet window is opened on the top cover (3). A cover (5) is movably installed on the air outlet window. The side of the cover (5) facing the box (2) is an open structure. A filter screen (51) is provided on the other side of the cover (5). Several ventilation slots (51) are spaced apart around the cover (5). 2) A limiting frame (53) is provided around the outer edge of the open side of the cover (5). A sliding column (54) is fixed at each of the four corners of the limiting frame (53). A round hole is opened on the top cover (3) corresponding to the sliding column (54). The sliding column (54) slides with the round hole. A limiting block (55) is fixed at one end of the sliding column (54) that extends out of the round hole. A first spring (56) is sleeved on the outside of the sliding column (54). One end of the first spring (56) is connected to the limiting frame (53). The other end of the first spring (56) is connected to the top cover (3) and a force sensor is provided at the connection end.

2. The intelligent heat dissipation device for prefabricated substations according to claim 1, characterized in that, The enclosure (2) is equipped with a pressure sensor and a temperature sensor to monitor the internal pressure and temperature.

3. The intelligent heat dissipation device for prefabricated substations according to claim 1, characterized in that, The fan assembly (4) includes a housing (41), an installation plate (42) is fixed inside the housing (41), a fan (43) is installed on the installation plate (42), the air inlet side of the fan (43) faces the outside of the housing (2), the air outlet side of the fan (43) faces the air inlet window (21), and a dust filter module (44) is provided between the fan (43) and the air inlet window (21).

4. The intelligent heat dissipation device for prefabricated substations according to claim 1, characterized in that, The top cover (3) is provided with a series of support members (6) at intervals on the upper side. Each set of support members (6) has one side higher than the other side. Corrugated tile (61) is provided on the support member (6). The surface of the corrugated tile (61) has a continuous vertical corrugated structure. Two full-length, flat and non-corrugated cover plates (62) are provided in the middle of the upper side of the corrugated tile (61).

5. The intelligent heat dissipation device for prefabricated substations according to claim 4, characterized in that, The frame (1) is provided with a liquid receiving mechanism (7) relative to the drainage end of the corrugated tile plate (61). The liquid receiving mechanism (7) includes a liquid receiving tank (71). A grid plate (72) is mounted on the upper side of the liquid receiving tank (71). One end of the grid plate (72) near the corrugated tile plate (61) is higher than the other end. Downflow outlets are opened at the bottom of both ends of the liquid receiving tank (71).

6. The intelligent heat dissipation device for prefabricated substations according to claim 5, characterized in that, The downstream outlet is connected to a connecting pipe (73), which is open from top to bottom and has a sliding box (74) inside. The sliding box (74) is a hollow structure and has several sliding grooves (741) on its inner wall. A slide frame (75) is slidably arranged inside the sliding box (74). The slide frame (75) is open from top to bottom and has a slider (751) corresponding to the sliding groove (741). The slider (751) slides with the sliding groove (741). Several through grooves (752) are opened on the circumference of the surface of the slide frame (75). A second spring (753) is connected between the bottom of the slide frame (75) and the bottom of the sliding box (74).

7. The intelligent heat dissipation device for prefabricated substations according to claim 6, characterized in that, The sliding box (74) has an upper liquid outlet and a lower liquid outlet on the two sides of the box body (2), respectively. The upper liquid outlet is higher than the lower liquid outlet. The upper liquid outlet is connected to a first adapter pipe (76), and the lower liquid outlet is connected to a second adapter pipe (77). The other ends of the first adapter pipe (76) and the second adapter pipe (77) extend into the box body (2), respectively. The upper liquid outlet and the lower liquid outlet correspond to the through groove (752).

8. The intelligent heat dissipation device for prefabricated substations according to claim 7, characterized in that, The other end of the first adapter pipe (76) is set vertically downward to guide rainwater to the ground. Several containment covers (761) are arranged at intervals on the vertical pipe of the first adapter pipe (76). The first adapter pipe (76) is connected to each of the containment covers (761). A drive rod (762) is passed through the containment cover (761). Several drive blades (763) are connected to the circumference of the surface of the drive rod (762). The drive rod (762) is rotatably engaged with the containment cover (761). A connecting rod (764) is connected to one end of the drive rod (762) facing the inside of the box (2). The other end of the connecting rod (764) extends out of the surface of the containment cover (761) and is connected to several fan blades (765) on the circumference.

9. The intelligent heat dissipation device for prefabricated substations according to claim 8, characterized in that, The other end of the second adapter pipe (77) is connected to a cooling pipe (771). The cooling pipe (771) is provided with a multi-section meandering and bending structure. The outlet end of the cooling pipe (771) is connected to a drain pipe (772). The other end of the drain pipe (772) is set vertically downward to guide rainwater to the ground.

10. The intelligent heat dissipation device for prefabricated substations according to claim 1, characterized in that, The transformer assembly is installed inside the enclosure (2).

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