Power transformer with protection mechanism

Abstract

The application relates to the technical field of power transformers, and particularly discloses a power transformer with a protection mechanism, which comprises a protection box, a rainwater collecting box is fixedly connected to the top of the protection box, water conveying pipes are symmetrically connected to the bottom of the rainwater collecting box, a rain shelter is fixedly connected to the top of the rainwater collecting box, a rain collecting mechanism is symmetrically penetrated through and fixedly connected to the top of the protection box, a heat dissipation box is fixedly connected to the bottom of the inner wall of the protection box, the power transformer with the protection mechanism is provided with the rain collecting mechanism, rainwater can be automatically collected and multiple rainproof protections can be realized, the damping buffer mechanism is arranged, vibration and noise can be efficiently reduced, the transformer operation stability is improved, the adjusting assembly is arranged, single driving can realize the three-in-one of moisture-proofing, heat dissipation and blockage removal, the cost is reduced and the protection effect is improved, the cooling assembly is arranged, efficient cooling can be realized by rainwater circulation, and the high-temperature protection capability of the transformer is enhanced.

Description

Technical Field

[0001] This invention relates to the field of power transformer technology, and in particular to a power transformer with a protective mechanism. Background Technology

[0002] As the core electrical equipment in the power system that realizes voltage transformation, power distribution, and energy transmission, power transformers play an irreplaceable and fundamental role in modern power grid construction, industrial power supply, and urban and rural residential power supply. With the continuous optimization of my country's energy structure, the continuous expansion of power grid coverage, and the rapid advancement of various outdoor power distribution projects and new energy grid connection projects, the application scenarios of power transformers are becoming increasingly diversified, and the operating environment is becoming more complex and diverse. Through long-term technological development and engineering practice, power transformers with overall protection structures have gradually become the mainstream configuration in outdoor, suburban, industrial and mining enterprises, and remote area power distribution networks due to their excellent environmental adaptability and operational stability.

[0003] Chinese patent CN120600458A discloses a flame-retardant power transformer that can improve stability during operation. By using an arc-shaped seat to block part of the dustproof ring mesh, some airflow enters the arc-shaped seat and arc-shaped groove when the air inlet is inlet. By changing the horizontal movement of this part of the airflow to vertical movement and blowing it towards the interception surface of the dustproof ring mesh, the impurities intercepted on the surface of the dustproof ring mesh can be blown downward into the air guide pipe and discharged to the outside. This achieves contactless cleaning, avoids workpiece damage, and reduces operating noise.

[0004] While the aforementioned system enables automatic cleaning of the dust filter, it lacks an effective rainproof and drainage structure during rain. This may allow rainwater to seep into the enclosure and damage the transformer. Furthermore, it cannot effectively utilize rainwater, resulting in ineffective protection. Transformer vibrations can easily cause components to loosen and seals to fail, leading to moisture and dust intrusion and reduced protection. Additionally, in existing equipment, the desiccant may clump over time, affecting the drying efficiency and moisture protection. Rainwater can also seep into the enclosure through the lock core, damaging the transformer and impacting its protection and lifespan. Relying primarily on natural cooling or conventional air cooling for comprehensive and effective heat dissipation is insufficient, resulting in limited cooling efficiency and poor transformer protection. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides the following technical solution: a power transformer with a protective mechanism, comprising a protective box, a rainwater collection box fixedly connected to the top of the protective box, water supply pipes symmetrically connected to the bottom of the rainwater collection box, a rain shelter fixedly connected to the top of the rainwater collection box, a rain collection mechanism symmetrically penetrating and fixedly connected to the top of the protective box, a heat dissipation box fixedly connected to the bottom of the inner wall of the protective box, a transformer body fixedly connected to the top of the heat dissipation box through a shock absorption and buffer mechanism, the bottom of the heat dissipation box being open, an adjustment component fixedly connected to the bottom of the inner wall of the protective box, ventilation openings evenly provided on both sides of the bottom of the inner wall of the protective box located on both sides of the adjustment component, a cooling component fixedly connected to the top of the inner wall of the heat dissipation box, and heat dissipation openings on both sides of the protective box.

[0006] Preferably, the rain shelter includes a triangular fixing frame, with a rain filter plate fixedly connected to each of the two inclined surfaces at the top of the triangular fixing frame, and a U-shaped water barrier fixedly connected to each side of the rain filter plate. The rain filter plate is used to filter rainwater, and the U-shaped water barrier is used to prevent rainwater from dripping onto the protective box.

[0007] Preferably, the rain collection mechanism includes a rain collection box, with a rain inlet at the top and a drain outlet at the bottom of the side of the rain collection box. A sealing water-receiving plate is slidably connected to the inner wall of the rain collection box, and sliding sleeves are symmetrically and fixedly connected through the bottom of the rain collection box. A first spring is fixedly connected to the bottom of the inner wall of the sliding sleeve, and a pressure-sensing rod is slidably connected to the inner wall of the sliding sleeve. The bottom of the pressure-sensing rod is fixedly connected to the first spring.

[0008] Preferably, the inner wall of the sliding sleeve located inside the first spring is slidably connected to a connecting slide rod. The top of the connecting slide rod is fixedly connected to the bottom of the pressure-sensing slide rod. A rain shield is fixedly connected to the bottom of the connecting slide rod via a bracket. Cleaning brushes are evenly fixedly connected to the side of the rain shield. The side of the rain collection box located inside the protective box is connected to the inlet and return pipe of a micro pump. The outlet of the micro pump is connected to a cooling water pipe. The rain collection box passes through the top of the protective box and is fixedly connected to the protective box. The end of the return pipe away from the rain collection box and the end of the cooling water pipe away from the micro pump are both connected to the cooling component. Rainwater flows into the collection box after being filtered by the inclined filter plate. Impurities slide down the inclined surface to prevent blockage. The U-shaped water barrier prevents rainwater from overflowing and eroding the protective box. When there is too much rainwater, the sealing water-receiving plate is pressed down and automatically discharges excess rainwater. At the same time, the rain shield closes the heat dissipation vent and the cleaning brush cleans the heat dissipation vent. The collected rainwater can be used for cooling and improves rain protection capabilities.

[0009] Preferably, the shock absorption and buffer mechanism includes a mounting base, the top of which has a mounting groove, and buffer springs are uniformly fixedly connected to the bottom of the inner wall of the mounting groove. Buffer slide plates are slidably connected to both sides of the inner wall of the mounting groove. A connecting frame is fixedly connected to the top of the buffer slide plate. Fixed bolts are symmetrically threaded through and connected to the top of the connecting frame. A sliding buffer plate is rotatably connected to the bottom of the fixed bolts. The bottom of the sliding buffer plate is fixedly connected to the top of the buffer spring. A porous sound-absorbing cotton is fixedly connected to the top of the connecting frame, and mounting frames are fixedly connected to both sides of the porous sound-absorbing cotton.

[0010] Preferably, movable grooves are provided on both sides of the inner wall of the mounting groove. A second spring is uniformly fixedly connected to one side of the inner wall of the movable groove. An elastic buffer plate is slidably connected to the inner wall of the movable groove. The side of the elastic buffer plate is fixedly connected to the second spring. Heat dissipation holes are uniformly provided at the bottom of the inner wall of the mounting groove. The top of the mounting frame is fixedly connected to the bottom of the transformer body. The bottom of the mounting base is fixedly connected to the top of the heat dissipation box. The transformer vibration is transmitted to the buffer slide plate and the elastic buffer plate through the mounting frame and the connecting plate. The vibration energy is offset by the buffer spring and the second spring, reducing the vibration amplitude. The porous sound-absorbing cotton absorbs noise. The preload of the buffer spring can be adjusted by rotating the fixing bolt to adapt to the requirements. The heat dissipation holes increase the heat dissipation area and ensure stable and quiet operation of the device.

[0011] Preferably, an inspection door is rotatably connected through the side of the protection box, and a rain cover is fixedly connected around the lock cylinder of the inspection door. A temperature sensor is fixedly connected to one side of the inner wall of the protection box, and three sets of temperature sensors are provided, corresponding to the upper, middle and lower positions of the transformer body respectively.

[0012] Preferably, the top of the heat dissipation box is provided with heat dissipation holes evenly distributed, the inner wall of the heat dissipation box is fixedly connected with a filter plate, two sets of filter plates are provided, the space between the two sets of filter plates is filled with desiccant, and guide grooves are provided on both sides of the inner wall of the heat dissipation box below the filter plate.

[0013] Preferably, the adjusting assembly includes a reciprocating lead screw, a rotating rod fixedly connected to the bottom of the reciprocating lead screw, a drive shaft of a drive motor fixedly connected to the bottom of the rotating rod, rotating fan blades evenly fixedly connected to the rotating rod, a reciprocating sliding plate sleeved and slidably connected to the reciprocating lead screw, guide fixing plates fixed to both sides of the reciprocating sliding plate, a reciprocating slide rod fixedly connected to the top of the guide fixing plate, the top of the reciprocating slide rod penetrating the bottom of the filter plate and extending between the two sets of filter plates, a reciprocating swaying frame fixedly connected to the top of the reciprocating slide rod, and a reciprocating connecting rod fixedly connected to the bottom of the guide fixing plate. A reciprocating connecting plate is fixedly connected to the bottom of the reciprocating connecting plate, and brush rods are evenly fixedly connected to the bottom of the reciprocating connecting plate. The brush rods slide back and forth on the inner wall of the vent. The side of the guide fixing plate away from the reciprocating sliding plate is slidably connected to the inner wall of the guide groove through a slider. The drive motor is fixedly connected to the bottom of the inner wall of the protective box. The drive motor drives the rotating rod to rotate, which on the one hand drives the reciprocating screw to drive the reciprocating shaking frame to shake the desiccant, preventing clumping and improving the drying effect, and on the other hand drives the fan blades to generate airflow to accelerate heat dissipation. At the same time, it drives the brush rods to clean the vent to prevent blockage. A single motor achieves multiple functions, reduces cost and energy consumption, and improves heat dissipation and moisture prevention capabilities.

[0014] Preferably, the cooling component includes an annular fixed tube, with cooling tubes uniformly fixedly connected to the inner wall of the annular fixed tube. Heat-conducting plates are connected and fixedly connected between the annular fixed tube and the cooling tubes, as well as between each cooling tube. Semiconductor cooling chips are connected and fixedly connected to both sides of the annular fixed tube. A connecting pipe is connected to the top of the annular fixed tube, and a serpentine tube is connected to the end of the connecting pipe away from the annular fixed tube. The annular fixed tube is fixedly connected to the bottom of the inner wall of the heat sink. The top of the annular fixed tube is connected to a return pipe. The end of the serpentine tube away from the connecting pipe is connected to a cooling water pipe. The serpentine tube surrounds the transformer body. The semiconductor cooling chips are controlled by a temperature sensor. A micro-pump pumps rainwater from the rain collection box into the serpentine tube. After absorbing heat from the transformer, the rainwater circulates through the annular fixed tube and cooling tubes. When the temperature is too high, the semiconductor cooling chips cool the rainwater, and the heat-conducting plates transfer the cold temperature to the airflow. This, combined with the direct cooling effect of the serpentine tube, improves the cooling effect and extends the service life of the transformer.

[0015] The beneficial effects of the technical solution provided by this invention include: 1. This power transformer with protective mechanisms is equipped with a rain collection system to automatically collect rainwater and provide multiple layers of rain protection, effectively protecting the transformer from rainwater erosion. The inclined filter plate automatically tilts to remove impurities and prevents clogging, and the U-shaped water-blocking canopy reduces rainwater erosion of the tank. When the rainfall is too heavy, the sealed water-receiving plate automatically releases pressure and drains water to prevent rainwater from seeping into the tank. In heavy rain, the heat dissipation vents can be automatically closed and impurities can be cleaned simultaneously to prevent rainwater from entering and clogging the heat dissipation vents. The collected rainwater can also be used for cooling, comprehensively improving the transformer's rain protection capabilities.

[0016] 2. This power transformer with protective mechanisms is equipped with a shock-absorbing and buffering mechanism, which effectively reduces vibration and noise, improves the stability of transformer operation, and uses a combination of buffer springs and elastic buffer plates to absorb energy, reduce the amplitude of working vibration, avoid equipment damage and seal failure, prevent moisture and dust from entering, and use porous sound-absorbing cotton to reduce operating noise and improve comfort. The spring preload can be adjusted by bolts to adapt to different working conditions, and the bottom heat dissipation holes increase the heat dissipation area, taking into account shock absorption, noise reduction and heat dissipation, further improving protection capabilities and extending the service life of the transformer.

[0017] 3. This power transformer with a protective mechanism is equipped with an adjustment component. A single drive achieves a three-in-one function of moisture prevention, heat dissipation, and unblocking, reducing costs and improving the protective effect. The reciprocating structure flips the desiccant to prevent clumping and enhances the air drying effect, preventing the transformer from getting damp. The fan blades accelerate the air circulation and heat dissipation inside the box, and the brush rod automatically cleans impurities from the ventilation openings, improving heat dissipation efficiency. The rain cover on the maintenance door lock core further prevents moisture, thereby improving the transformer's heat dissipation and moisture prevention capabilities.

[0018] 4. This power transformer with a protective mechanism is equipped with a cooling component that utilizes rainwater circulation for efficient cooling, enhancing the transformer's high-temperature protection capability. A micro-pump drives rainwater to circulate within a serpentine pipe, directly absorbing heat from the transformer. Temperature sensors monitor the temperature, and the semiconductor cooling chip automatically adjusts the water temperature in real time to ensure cooling effectiveness. Heat-conducting plates transfer the cooling energy to the dry airflow, forming an auxiliary air-cooling system. This dual-efficiency cooling system saves water resources through water circulation and effectively improves the cooling effect, further enhancing the protection of the transformer body and extending its service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the power transformer structure with a protective mechanism according to the present invention; Figure 2 This is a schematic diagram of the internal connection structure of the protective box of the present invention; Figure 3 This is a schematic diagram of the internal connection structure of the heat sink of the present invention; Figure 4 This is a schematic diagram of the connection structure of the rain collection mechanism of the present invention; Figure 5 This is a schematic diagram of the internal connection structure of the rain collection mechanism of the present invention; Figure 6 This is a schematic diagram of the connection structure of the shock absorption and buffer mechanism of the present invention; Figure 7 This is a schematic diagram of the internal connection structure of the mounting slot of the present invention; Figure 8 This is a schematic diagram of the connection structure between the adjustment component and the heat sink of the present invention; Figure 9 This is a schematic diagram of the adjustment component structure of the present invention; Figure 10 This is a schematic diagram of the connection structure of the cooling component of the present invention.

[0020] In the diagram: 1. Protective box; 2. Rainwater collection box; 3. Water supply pipe; 4. Rain shelter; 5. Rain collection mechanism; 6. Heat dissipation box; 7. Shock absorption and buffer mechanism; 8. Transformer body; 9. Adjustment component; 10. Ventilation opening; 11. Cooling component; 12. Inspection door; 13. Rain cover; 14. Temperature sensor; 15. Heat dissipation hole; 16. Air filter plate; 17. Guide slide; 18. Heat dissipation opening; 41. Triangular fixing bracket; 42. Rain filter plate; 43. U-shaped water barrier; 51. Rain collection box; 52. Rain inlet; 53. Drain outlet; 54. Sealing water-receiving plate; 55. Sliding sleeve; 56. First spring; 57. Pressure-sensing slide rod; 58. Connecting slide rod; 59. Rain shield; 510. Cleaning brush; 511. Miniature pump; 512. Return pipe; 513. 71. Cooling water pipe; 72. Mounting base; 73. Mounting groove; 74. Buffer spring; 75. Buffer slide plate; 76. Connecting bracket; 77. Fixing bolt; 78. Sliding buffer plate; 79. Porous sound-absorbing cotton; 710. Mounting bracket; 711. Movable groove; 712. Second spring; 713. Elastic buffer plate; 714. Heat dissipation through hole; 91. Reciprocating lead screw; 92. Rotating rod; 93. Drive motor; 94. Rotating fan blade; 95. Reciprocating sliding plate; 96. Guide fixing plate; 97. Reciprocating slide rod; 98. Reciprocating rocking frame; 99. Reciprocating connecting rod; 910. Reciprocating connecting plate; 911. Brush rod; 111. Annular fixing pipe; 112. Cooling pipe; 113. Heat conducting plate; 114. Semiconductor cooling chip; 115. Connecting pipe; 116. Serpentine pipe. Detailed Implementation

[0021] For the first embodiment, please refer to... Figures 1-5This invention provides a power transformer with a protective mechanism. By incorporating a rainwater collection mechanism 5, rainwater is first filtered through an inclined rainwater filter plate 42 before flowing into a rainwater collection tank 2. Because the rainwater filter plate 42 is inclined, impurities slide off its surface without clogging the filter holes. A U-shaped water-blocking canopy 43 prevents rainwater from overflowing from both sides of the rainwater filter plate 42 and dripping directly onto the surface of the protective tank 1, reducing long-term erosion of the protective tank 1. Rainwater enters the rainwater collection tank 51 through the inlet 52 via the water pipe 3 and falls onto the sealing water-receiving plate 54. During heavy rain, as the rainfall increases, the weight of the sealing water-receiving plate 54 gradually increases, compressing the first spring 56 and causing the sealing water-receiving plate 54 to move downwards. When the sealing water-receiving plate 54 moves below the drain outlet 53, excess rainwater can be discharged from the drain outlet 53, preventing excessive overflow and seepage into the gaps of the protective tank 1. The internal damage to the transformer body 8 caused by the protection box 1 is caused by the pressure-sensing slide bar 57 moving down with the sealing water-receiving plate 54 under the action of the first spring 56. Through the connecting slide bar 58, the rain shield 59 and the cleaning brush 510 are moved down. The rain shield 59 moves to the position of the heat dissipation port 18 on the outside of the protection box 1, which can close the heat dissipation port 18 in heavy rain to prevent rainwater from entering the device. The cleaning brush 510 can simultaneously clean the impurities on the surface of the heat dissipation port 18 to prevent the heat dissipation port 18 from being blocked and affecting heat dissipation. The collected rainwater can be used to cool the transformer body 8 later. In summary, the automatic collection of rainwater can be realized. When there is too much rainwater, the excess rainwater can be automatically discharged to prevent overflow. At the same time, the heat dissipation port 18 can be automatically closed in heavy rain to prevent rainwater from entering the device. The heat dissipation port 18 can also be cleaned while being closed. The collected rainwater can also be used for cooling, while protecting the transformer body 8 from rainwater corrosion and improving the protection capability of the device.

[0022] For the second embodiment, please refer to... Figures 1-7By incorporating a shock-absorbing and buffering mechanism 7, when the transformer body 8 vibrates during operation, the vibration is transmitted to the connecting frame 75 via the mounting bracket 79. The connecting frame 75 then transmits the vibration to the buffer slide plate 74. The buffer slide plate 74 slides along the inner wall of the mounting groove 72, causing the connecting frame 75 to compress the buffer spring 73. The buffer spring 73 has an opposing elastic force that offsets part of the vibration. Simultaneously, when the connecting frame 75 is compressed, the buffer slide plate 74 can transfer some of the vibration energy to the elastic buffer plates 712 on both sides. The elastic buffer plates 712 compress the second spring 711, which further offsets the vibration energy, thereby reducing the vibration amplitude generated by the transformer body 8 during operation and preventing excessive vibration amplitude from causing damage to the transformer body 8 and sealing failure. Dust and damp air entering the protective box 1 can damage the transformer body 8. At the same time, the porous sound-absorbing cotton 78 can absorb the noise generated by the transformer body 8 during operation, reduce noise pollution, improve the stability and quietness of the device operation, and achieve buffer protection for the transformer body 8. When it is necessary to adjust the shock absorption capacity, rotating the fixing bolt 76 will drive the sliding buffer plate 77 to move downward along the inner wall of the mounting groove 72, thereby squeezing the buffer spring 73 and changing the preload of the buffer spring 73. This allows for easy adjustment of the shock absorption capacity according to the actual use, adapting to different usage needs. Meanwhile, the bottom of the mounting groove 72 is provided with heat dissipation holes 713, which increases the area for subsequent air blowing to cool the transformer body 8 and avoids local heat accumulation that affects the heat dissipation effect.

[0023] Third embodiment, please refer to Figures 1-9By setting the adjustment component 9, during use, the drive shaft of the drive motor 93 rotates, causing the rotating rod 92 to rotate. The rotation of the rotating rod 92 drives the reciprocating screw 91 to rotate. When the reciprocating screw 91 rotates, it drives the reciprocating sliding plate 95 to move up and down along the guide slide groove 17. The reciprocating sliding plate 95 drives the reciprocating slide rod 97 to move up and down through the guide fixing plate 96. The reciprocating slide rod 97 drives the reciprocating shaking frame 98 to shake between the two sets of filter plates 16, which can shake and turn the desiccant, avoiding the desiccant from absorbing moisture for a long time and causing local adsorption saturation and clumping, thus affecting the overall adsorption capacity. This improves the drying effect of the desiccant on the air entering the device and prevents moisture from entering the protective box 1 and causing damage to the transformer body 8. This improves the moisture protection capability of the device. On the other hand, the rotating rod 92 drives the rotating fan blade 94 to rotate. When the rotating fan blade 94 rotates, it generates an upward airflow. The airflow passes through the vent 10 and the brush rod 911 and then passes through the filter plate 1. The desiccant 6 and heat dissipation holes 15 enter the interior of the protective box 1, accelerating air circulation and heat dissipation. Simultaneously, as the reciprocating sliding plate 95 moves up and down, it drives the reciprocating connecting plate 910 and brush rod 911 to slide up and down along the inner wall of the vent 10 via the guide fixing plate 96 and the reciprocating connecting rod 99. The brush rod 911 can clean the impurities adhering to the inner wall of the vent 10, preventing the vent 10 from being blocked by dust and affecting the heat dissipation efficiency, thus ensuring the stability of heat dissipation. In summary, the automatic turning of the desiccant, the automatic cleaning of the vent 10, and the acceleration of air circulation and heat dissipation inside the device can be completed simultaneously by the drive motor 93. Multiple drive devices are not required, reducing the manufacturing cost and energy consumption of the device. At the same time, the heat dissipation and moisture protection capabilities of the device are effectively improved, extending the service life of the transformer body 8. A rain cover 13 is installed on the lock cylinder of the maintenance door 12 to prevent rainwater from entering the protective box 1 through the lock cylinder gaps and corroding the transformer body 8, further improving the moisture protection capability.

[0024] For the fourth embodiment, please refer to [link / reference]. Figures 1-10By incorporating a cooling component 11, during operation, the micro pump 511 is activated, pumping rainwater collected inside the rain collection box 51 into the cooling water pipe 513. The rainwater then flows along the cooling water pipe 513 into the serpentine pipe 116, which adheres to the surface of the transformer body 8 to absorb the heat generated during its operation. After absorbing heat, the rainwater flows along the connecting pipe 115 into the annular fixed pipe 111, and then through the annular fixed pipe 111 to the cooling pipe 112. Finally, it flows from the cooling pipe 112 into the return pipe 512, completing the water circulation. If the temperature of the rainwater remains high after absorbing heat, and the temperature sensor 14 detects that the internal temperature of the protection box 1 exceeds a set threshold, the semiconductor cooling chip 114 is automatically activated to cool the rainwater inside the annular fixed pipe 111. The cooling process ensures that the rainwater flowing out of the annular fixed pipe 111 remains at a low temperature. After cooling, the rainwater flows back into the rain collection box 51 through the return pipe 512, forming a cooling cycle. Heat-conducting plates 113 are fixedly connected between the annular fixed pipe 111 and the cooling pipe 112, as well as between the cooling pipes 112. Since the heat-conducting plates 113 are located below the heat dissipation holes 15, the upward-flowing, dried airflow passes through the heat-conducting plates 113. The heat-conducting plates 113 transfer the cold temperature from the annular fixed pipe 111 and the cooling pipe 112 to the airflow. The cold airflow flows upward through the heat dissipation holes 15 into the protection box 1. Combined with the direct cooling of the transformer body 8 by the serpentine pipe 116, the cooling effect is further improved, enhancing the protection capability of the transformer body 8 and extending its service life.

[0025] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A power transformer with a protective mechanism, characterized in that: The protective box (1) is fixedly connected to the top of the protective box (1) with a rainwater collection box (2). The bottom of the rainwater collection box (2) is symmetrically connected with a water supply pipe (3). The top of the rainwater collection box (2) is fixedly connected with a rain shelter (4). The top of the protective box (1) is symmetrically connected with a rain collection mechanism (5). The bottom of the inner wall of the protective box (1) is fixedly connected with a heat dissipation box (6). The top of the heat dissipation box (6) is fixedly connected with a transformer body (8) through a shock absorption and buffer mechanism (7). The bottom of the heat dissipation box (6) is open. The bottom of the inner wall of the protective box (1) is fixedly connected with an adjustment component (9). The bottom of the inner wall of the protective box (1) is evenly provided with ventilation openings (10) on both sides of the adjustment component (9). The top of the inner wall of the heat dissipation box (6) is fixedly connected with a cooling component (11). The protective box (1) is provided with heat dissipation openings (18) on both sides. The rain shelter (4) includes a triangular fixing frame (41), and a rain filter plate (42) is fixedly connected to the two inclined surfaces at the top of the triangular fixing frame (41). A U-shaped water barrier (43) is fixedly connected to both sides of the rain filter plate (42). The rain filter plate (42) is used to filter rainwater, and the U-shaped water barrier (43) is used to prevent rainwater from dripping onto the protective box (1).

2. A power transformer with a protective mechanism according to claim 1, characterized in that: The rain collection mechanism (5) includes a rain collection box (51), with a rain inlet (52) at the top and a drain outlet (53) at the bottom side of the rain collection box (51). A sealing water-receiving plate (54) is slidably connected to the inner wall of the rain collection box (51). A sliding sleeve (55) is symmetrically and fixedly connected through the bottom of the rain collection box (51). A first spring (56) is fixedly connected to the bottom of the inner wall of the sliding sleeve (55). A pressure-sensing slide rod (57) is slidably connected to the inner wall of the sliding sleeve (55). The bottom of the pressure-sensing slide rod (57) is fixedly connected to the first spring (56).

3. A power transformer with a protective mechanism according to claim 2, characterized in that: The inner wall of the sliding sleeve (55) located inside the first spring (56) is connected to a connecting slide rod (58) through which a connecting slide rod (58) is slidably connected. The top of the connecting slide rod (58) is fixedly connected to the bottom of the pressure-sensing slide rod (57). The bottom of the connecting slide rod (58) is fixedly connected to a rain shield (59) through a bracket. Cleaning brushes (510) are evenly fixedly connected to the side of the rain shield (59). The part of the side of the rain collection box (51) located inside the protective box (1) is connected to the inlet of the micro pump (511) and the return pipe (512). The outlet of the micro pump (511) is connected to a cooling water pipe (513). The rain collection box (51) passes through the top of the protective box (1) and is fixedly connected to the protective box (1). The end of the return pipe (512) away from the rain collection box (51) and the end of the cooling water pipe (513) away from the micro pump (511) are both connected to the cooling component (11).

4. A power transformer with a protective mechanism according to claim 1, characterized in that: The shock absorption and buffer mechanism (7) includes a mounting base (71), the mounting base (71) has a mounting groove (72) on the top, buffer springs (73) are uniformly fixedly connected to the bottom of the inner wall of the mounting groove (72), buffer slide plates (74) are slidably connected to both sides of the inner wall of the mounting groove (72), a connecting frame (75) is fixedly connected to the top of the buffer slide plate (74), a fixing bolt (76) is symmetrically threaded through the top of the connecting frame (75), a sliding buffer plate (77) is rotatably connected to the bottom of the fixing bolt (76), the bottom of the sliding buffer plate (77) is fixedly connected to the top of the buffer spring (73), a porous sound-absorbing cotton (78) is fixedly connected to the top of the connecting frame (75), and mounting frames (79) are fixedly connected to both sides of the porous sound-absorbing cotton (78).

5. A power transformer with a protective mechanism according to claim 4, characterized in that: The mounting groove (72) has movable grooves (710) on both sides of its inner wall. A second spring (711) is fixedly connected to one side of the inner wall of the movable groove (710). An elastic buffer plate (712) is slidably connected to the inner wall of the movable groove (710). The side of the elastic buffer plate (712) is fixedly connected to the second spring (711). Heat dissipation holes (713) are evenly opened at the bottom of the inner wall of the mounting groove (72). The top of the mounting bracket (79) is fixedly connected to the bottom of the transformer body (8). The bottom of the mounting base (71) is fixedly connected to the top of the heat dissipation box (6).

6. A power transformer with a protective mechanism according to claim 1, characterized in that: The protective box (1) has a maintenance door (12) that is rotatably connected through the side. A rain cover (13) is fixedly connected around the lock cylinder of the maintenance door (12). A temperature sensor (14) is fixedly connected to one side of the inner wall of the protective box (1). The temperature sensor (14) is provided in three sets and corresponds to the upper, middle and lower positions of the transformer body (8).

7. A power transformer with a protective mechanism according to claim 1, characterized in that: The top of the heat dissipation box (6) is evenly provided with heat dissipation holes (15), and the inner wall of the heat dissipation box (6) is fixedly connected with a filter plate (16). There are two sets of filter plates (16), and the space between the two sets of filter plates (16) is filled with desiccant. The inner walls of the heat dissipation box (6) on both sides below the filter plates (16) are provided with guide grooves (17).

8. A power transformer with a protective mechanism according to claim 7, characterized in that: The adjusting assembly (9) includes a reciprocating lead screw (91), a rotating rod (92) fixedly connected to the bottom of the reciprocating lead screw (91), a drive shaft of a drive motor (93) fixedly connected to the bottom of the rotating rod (92), rotating fan blades (94) evenly fixedly connected to the rotating rod (92), a reciprocating sliding plate (95) sleeved and slidably connected to the reciprocating lead screw (91), guide fixing plates (96) fixed on both sides of the reciprocating sliding plate (95), a reciprocating slide rod (97) fixedly connected to the top of the guide fixing plate (96), and the top of the reciprocating slide rod (97) penetrating the bottom of the filter plate (16) and extending to the two sets of filters. Between the plates (16), the top of the reciprocating slide rod (97) is fixedly connected to a reciprocating swing frame (98), the bottom of the guide fixing plate (96) is fixedly connected to a reciprocating connecting rod (99), the bottom of the reciprocating connecting rod (99) is fixedly connected to a reciprocating connecting plate (910), the bottom of the reciprocating connecting plate (910) is evenly fixedly connected to a brush rod (911), the brush rod (911) slides back and forth on the inner wall of the vent (10), the side of the guide fixing plate (96) away from the reciprocating slide plate (95) is slidably connected to the inner wall of the guide groove (17) through a slider, and the drive motor (93) is fixedly connected to the bottom of the inner wall of the protective box (1).

9. A power transformer with a protective mechanism according to claim 1, characterized in that: The cooling component (11) includes an annular fixed tube (111), and cooling tubes (112) are uniformly fixedly connected to the inner wall of the annular fixed tube (111). Heat-conducting plates (113) are connected through and fixedly between the annular fixed tube (111) and the cooling tubes (112) and between each cooling tube (112). Semiconductor cooling plates (114) are connected through and fixedly connected to both sides of the annular fixed tube (111). A connecting tube (115) is connected to the top of the annular fixed tube (111), and a serpentine tube (116) is connected to the end of the connecting tube (115) away from the annular fixed tube (111).

10. A power transformer with a protective mechanism according to claim 9, characterized in that: The annular fixed tube (111) is fixedly connected to the bottom of the inner wall of the heat sink (6). The top of the annular fixed tube (111) is connected to the return pipe (512). The end of the serpentine tube (116) away from the connecting pipe (115) is connected to the cooling water pipe (513). The serpentine tube (116) is wrapped around the transformer body (8). The semiconductor cooling chip (114) is controlled by the temperature sensor (14).

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