Wind path adjusting structure for supply guarantee scene and dry-type transformer

Abstract

The invention provides a wind path adjusting structure for an insurance supply scene and a dry-type transformer. The air path adjusting structure for the guarantee supply scene comprises a plurality of mounting grooves, a plurality of air exhaust assemblies, a driving assembly, an air pressure sensor and a controller. The mounting grooves are formed in the top of the outer side wall of the transformer, and air outlets are formed in the mounting grooves; the exhaust assemblies are correspondingly arranged in the mounting grooves in a sliding mode, and the exhaust assemblies have a first state in which the exhaust assemblies slide out of the mounting grooves to increase the exhaust area of the exhaust outlets when the air pressure in the transformer rises and further have a second state in which the exhaust assemblies are reset after the air pressure in the transformer is reduced; the driving assembly is used for driving the exhaust assembly to be switched between the first state and the second state. The air pressure sensor is used for detecting internal air pressure of the transformer; the controller is electrically connected with the driving assembly and the air pressure sensor. According to the air path adjusting structure for the supply guarantee scene, hot air discharge can be accelerated when the air inlet amount in the transformer is increased sharply under the supply guarantee scene.

Description

Technical Field

[0001] This invention belongs to the field of heat dissipation technology for power supply transformers, specifically relating to a ventilation adjustment structure and a dry-type transformer for power supply scenarios. Background Technology

[0002] The heat dissipation process of a dry-type transformer is mainly accomplished through a forced air cooling system: a long fan installed at the bottom of the transformer starts when the windings heat up, generating cool air that is transported upwards from the bottom of the windings. This cool air exchanges heat with the high-temperature windings via the heat dissipation fins on the winding surface, absorbing heat and transforming into hot air, which then rises along the winding gaps and is discharged from the top outlet. In this process, the direct contact between the cool air and the windings, the increased heat exchange area due to the heat dissipation fins, and the natural convection tendency formed by the density difference between the hot and cold airflows together constitute the core mechanism of heat dissipation, ensuring that the windings maintain a stable operating temperature under normal loads. In power supply scenarios, dry-type transformers need to withstand loads far exceeding those of normal operation, leading to a surge in heat in the windings due to increased workload. To alleviate the temperature rise, cooling is typically enhanced by increasing the airflow from the bottom-mounted fans. However, because cold air is denser than hot air, a large influx of cold air can rise above the hot air, hindering its normal exhaust. Simultaneously, the surge in airflow disrupts the original intake and exhaust balance, causing positive pressure to form inside the transformer. Some hot air is suppressed by the high-pressure cold air and trapped in the winding gaps, interfering with effective heat exchange between the cold air and the windings, and seriously threatening the transformer's operational stability. Summary of the Invention

[0003] This invention provides a ventilation adjustment structure and a dry-type transformer for power supply guarantee scenarios, aiming to improve the heat dissipation capacity of dry-type transformers in power supply guarantee scenarios.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: Firstly, a ventilation adjustment structure for power supply scenarios is provided, comprising multiple mounting slots, multiple exhaust components, a drive component, a pressure sensor, and a controller; each mounting slot is located on the top of the outer wall of a transformer, and an exhaust port is provided within the mounting slot; each exhaust component is slidably disposed within its respective mounting slot, and the exhaust component has a first state in which it slides out of the mounting slot to increase the exhaust area of ​​the exhaust port when the internal air pressure of the transformer increases, and a second state in which it resets after the internal air pressure of the transformer decreases; the drive component is located on the inner wall of the transformer and is connected to each exhaust component in a transmission manner, and is used to drive the exhaust components to switch between the first and second states; the pressure sensor is located inside the transformer and is used to detect the internal air pressure of the transformer; the controller is electrically connected to the drive component and the pressure sensor, respectively.

[0005] In conjunction with the first aspect, in one possible implementation, the mounting slot is provided with multiple sliding grooves; the exhaust assembly includes an exhaust plate and multiple folding plates; the exhaust plate is slidably disposed in the mounting slot, and has multiple sliding rods on one side, each sliding rod being slidably connected to the transformer side wall; each folding plate is disposed around the exhaust plate and is slidably connected to each sliding groove; wherein, the exhaust plate and the folding plates are provided with an array of exhaust holes.

[0006] In some embodiments, the folding plate includes a first plate and a second plate; one end of the first plate is disposed on the side wall of the exhaust plate, and the other end is vertically provided with a first step; the second plate is slidably connected in the groove, and one side is provided with a second step, which abuts against the first step.

[0007] For example, the drive assembly includes a first rotary drive member and a transmission assembly. The first rotary drive member is disposed on the side wall of the transformer. The transmission assembly has a power input end and a power output end. The power input end is connected to the output end of the first rotary drive member, and the power output end is connected to each slide rod.

[0008] For example, the transmission assembly includes a connecting frame, a first rotating rod, and an eccentric wheel; the connecting frame is connected to each sliding rod; the first rotating rod is located on the side of the connecting frame away from the sliding rod and is rotatably connected inside the transformer, with one end of the rotating rod connected to a first rotating drive component; the eccentric wheel is sleeved on the rotating rod, and the surface of the eccentric wheel is rolled against the connecting frame.

[0009] In conjunction with the first aspect, in one possible implementation, an elastic element is fitted onto the slide bar, with its two ends connected to the transformer sidewall and the exhaust plate, respectively.

[0010] In some embodiments, the air duct adjustment structure for supply guarantee scenarios is further provided with a pressure relief component, which includes a mounting frame, a baffle, and a second rotating rod. The mounting frame is located on the side wall of the transformer and below the drive component, and a pressure relief port is provided on the mounting frame. The baffle is rotatably connected to the mounting frame and is used to block the pressure relief port. The second rotating rod is rotatably connected inside the transformer and is drivenly connected to the first rotating rod. An eccentric roller is sleeved on the second rotating rod, and the surface of the eccentric roller is rolled against the surface of the baffle.

[0011] For example, both the first rotating rod and the second rotating rod are fitted with transmission wheels, and the two transmission wheels are connected by a transmission belt.

[0012] For example, a third rotating rod is rotatably installed on the outer wall of the transformer. The third rotating rod is located above each mounting slot and is fitted with multiple exhaust louvers, each exhaust louver correspondingly covering each mounting slot. A second rotating drive component is also provided on the outer wall of the transformer. The output end of the second rotating drive component is connected to the third rotating rod, and the second rotating drive component is electrically connected to the controller.

[0013] The beneficial effects of the airflow adjustment structure for power supply scenarios provided by this invention are as follows: Compared with the prior art, this invention, by setting multiple mounting slots and corresponding exhaust components, allows the exhaust components to slide out of the mounting slots when positive pressure is formed inside the transformer due to a surge in airflow during power supply scenarios. This directly increases the exhaust area of ​​the exhaust port, accelerates the discharge of hot air, alleviates the internal positive pressure problem caused by the surge in airflow, prevents hot air from lingering in the winding gaps, and ensures effective heat exchange between cold air and the windings. The exhaust components have a second state of reset after the air pressure decreases, which can reduce unnecessary exhaust channels in non-power supply or low-load scenarios, maintain a reasonable airflow balance inside the transformer, and reduce energy loss. The air pressure sensor detects changes in air pressure inside the transformer and transmits signals to the controller. The controller triggers the drive component to automatically adjust the exhaust area of ​​the exhaust components, which can effectively solve the problem of reduced heat dissipation efficiency caused by the imbalance between airflow and intake in the prior art, and ensure the operational stability of the transformer during power supply scenarios.

[0014] Secondly, embodiments of the present invention also provide a dry-type transformer, including a wind path adjustment structure for power supply scenarios.

[0015] The beneficial effects of the dry-type transformer provided by this invention are as follows: Compared with the prior art, this dry-type transformer includes an airflow adjustment structure for power supply scenarios. In power supply scenarios, when the internal air pressure of the transformer increases due to a surge in load, the air pressure sensor detects the change in internal air pressure and transmits a signal to the controller. The controller triggers the drive component to move the exhaust component out of the mounting slot to increase the exhaust area and accelerate the discharge of hot air. When the air pressure decreases, the exhaust component resets to maintain airflow balance. This effectively alleviates the problems of hot air retention and heat exchange obstruction caused by a surge in airflow in the prior art, ensuring the operational stability of the dry-type transformer in power supply scenarios and improving its heat dissipation reliability under high load conditions. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a dry-type transformer provided in an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the airflow adjustment structure for supply guarantee scenarios provided in an embodiment of the present invention; Figure 3 This is a three-dimensional structural diagram of the mounting groove used in an embodiment of the present invention; Figure 4 for Figure 3 A partial view of area A in the middle; Figure 5 This is a three-dimensional structural diagram of the exhaust assembly used in an embodiment of the present invention; Figure 6 This is an exploded structural diagram of the exhaust assembly used in an embodiment of the present invention; Figure 7 for Figure 6A partial view of region B in the middle; Figure 8 This is a three-dimensional structural diagram of the driving component used in an embodiment of the present invention; Figure 9 for Figure 8 A partial view of region C in the middle; Figure 10 This is a three-dimensional structural diagram of the pressure relief assembly used in an embodiment of the present invention; Figure 11 This is a three-dimensional structural diagram of the exhaust louvers used in an embodiment of the present invention.

[0017] In the diagram: 10. Mounting slot; 11. Exhaust vent; 12. Slide groove; 20. Exhaust assembly; 21. Exhaust plate; 22. Folding plate; 221. First plate; 222. Second plate; 223. First step; 224. Second step; 23. Slide rod; 24. Elastic element; 30. Drive assembly; 31. First rotary drive component; 32. Transmission assembly; 321. Connecting frame; 322. First rotating rod; 323. Eccentric wheel; 40. Pressure sensor; 50. Controller; 60. Pressure relief assembly; 61. Mounting frame; 611. Pressure relief port; 62. Baffle; 63. Second rotating rod; 64. Eccentric roller; 70. Transmission wheel; 80. Exhaust louver; 81. Third rotating rod; 82. Second rotary drive component. Detailed Implementation

[0018] To make the technical problems, solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0020] Please refer to the following: Figures 1 to 3The following describes the airflow adjustment structure for power supply scenarios provided by the present invention. The airflow adjustment structure for power supply scenarios includes multiple mounting slots 10, multiple exhaust components 20, a drive component 30, a pressure sensor 40, and a controller 50. Each mounting slot 10 is located on the top of the outer wall of the transformer, and an exhaust port 11 is provided within each mounting slot 10. Each exhaust component 20 is slidably disposed within its respective mounting slot 10. The exhaust component 20 has a first state where it slides out of the mounting slot 10 to increase the exhaust area of ​​the exhaust port 11 when the internal air pressure of the transformer increases, and a second state where it resets after the internal air pressure of the transformer decreases. The drive component 30 is located on the inner wall of the transformer and is connected to each exhaust component 20 via a transmission connection, and is used to drive the exhaust components 20 to switch between the first and second states. The pressure sensor 40 is located inside the transformer and is used to detect the internal air pressure of the transformer. The controller 50 is electrically connected to the drive component 30 and the pressure sensor 40, respectively.

[0021] It should be noted that multiple mounting slots 10 are all located in the top area of ​​the outer wall of the transformer, and each mounting slot 10 has a corresponding exhaust port 11 inside. The exhaust port 11 serves as the basic channel for hot air to be discharged from inside the transformer and is connected to the internal space of the transformer. Each exhaust component 20 corresponds one-to-one with each mounting slot 10, and each exhaust component 20 is slidably installed inside its corresponding mounting slot 10. The exhaust component 20 can change the actual exhaust area of ​​the exhaust port 11 by sliding itself. The drive component 30 is fixedly installed on the inner wall of the transformer and is connected to all exhaust components 20 by transmission. At the same time, the installation position of the drive component 30 needs to meet the requirement of being able to stably drive all exhaust components 20, while being inside the transformer and not interfering with the sliding of the mounting slots 10 and the exhaust components 20.

[0022] The pressure sensor 40 is located inside the transformer, directly within its internal space, allowing it to directly contact and sense the internal air pressure environment. The pressure sensor 40 monitors the internal air pressure in real time, converting pressure changes into electrical signals that can be recognized by the controller 50. When the transformer experiences a surge in load and increased airflow during power supply operations, leading to increased internal air pressure, the pressure sensor 40 accurately captures these changes and continuously outputs corresponding signals to the controller 50. As the sensing element of the entire regulation structure, the pressure sensor 40 serves as the signal source for triggering airflow regulation, providing the controller 50 with real-time and accurate pressure data for decision-making.

[0023] The controller 50 can be connected to the pressure sensor 40 and the drive assembly 30 via wires to transmit electrical signals, serving as the central hub for sensing the internal air pressure of the transformer and adjusting the exhaust area. The controller 50 has pre-set upper and lower air pressure thresholds related to the internal air pressure of the transformer. When the internal air pressure detected by the pressure sensor 40 exceeds the upper threshold, the controller 50 determines that the internal air pressure is too high and the exhaust area needs to be increased. It then sends a command to the drive assembly 30, causing the exhaust assembly 20 to slide out of the mounting slot 10 to switch to the first state. When the internal air pressure detected by the pressure sensor 40 is below the lower threshold, the controller 50 determines that the internal air pressure has returned to normal and the exhaust area needs to be reduced to maintain balance. It then commands the drive assembly 30 to reset the exhaust assembly 20 to switch to the second state.

[0024] Compared with existing technologies, the ventilation adjustment structure for power supply scenarios provided by this invention allows the exhaust component 20 to slide out of the mounting slot 10 when positive pressure is generated inside the transformer due to a surge in airflow during power supply scenarios. This directly increases the exhaust area of ​​the exhaust port 11, accelerates the discharge of hot air, alleviates the internal positive pressure problem caused by the surge in airflow, prevents hot air from lingering in the winding gaps, and ensures effective heat exchange between the cold air and the windings. The exhaust component 20 also has a second state that resets after the air pressure decreases, which can reduce unnecessary exhaust channels in non-power supply or low-load scenarios, maintain a reasonable airflow balance inside the transformer, and reduce energy loss. The air pressure sensor 40 detects changes in air pressure inside the transformer and transmits a signal to the controller 50. The controller 50 triggers the drive component 30 to automatically adjust the exhaust area of ​​the exhaust component 20, effectively solving the problem of reduced heat dissipation efficiency caused by the imbalance between airflow and intake in existing technologies, and ensuring the operational stability of the transformer during power supply scenarios.

[0025] Please see Figure 4 and Figure 5 The mounting groove 10 is provided with multiple sliding grooves 12; the exhaust assembly 20 includes an exhaust plate 21 and multiple folding plates 22; the exhaust plate 21 is slidably disposed in the mounting groove 10, and multiple sliding rods 23 are provided on one side, each sliding rod 23 being slidably connected to the side wall of the transformer; each folding plate 22 is respectively disposed around the exhaust plate 21 and is slidably connected to each sliding groove 12; wherein, the exhaust plate 21 and the folding plates 22 are provided with an array of exhaust holes.

[0026] It should be noted that the sliding groove 12 can be a recess spaced apart from the inner wall of the mounting groove 10. Its extension direction is consistent with the sliding direction of the exhaust assembly 20. It is a sliding guide structure for the folded plate 22, forming a nested relationship with the mounting groove 10. The sliding groove 12 and the exhaust port 11 in the mounting groove 10 do not obstruct each other, ensuring unobstructed ventilation. The exhaust plate 21 is a sheet structure, which is slidably installed inside the mounting groove 10 and can slide back and forth along the depth direction of the mounting groove 10. Multiple sliding rods 23 are fixedly provided on the side of the exhaust plate 21 facing the transformer. The sliding rods 23 extend along the sliding direction of the exhaust plate 21, and each sliding rod 23 establishes a sliding connection with the inner side wall of the transformer. The side wall of the transformer can be provided with sliding holes, and the sliding rods 23 pass into the sliding holes to ensure that the exhaust plate 21 does not deviate when sliding.

[0027] Each folded plate 22 is circumferentially distributed with the exhaust plate 21. The folded plates 22 are fixed to the four edges of the exhaust plate 21, and each folded plate 22 forms a one-to-one sliding connection with a sliding groove 12 within the mounting groove 10. Each folded plate 22 is embedded in its respective sliding groove 12 and can slide along the extension direction of the sliding groove 12. The exhaust hole array is a through-hole structure, evenly distributed on the surface of the exhaust plate 21 and each folded plate 22, and all exhaust holes communicate with the exhaust outlet 11 within the mounting groove 10. When the exhaust assembly 20 is in any state, the exhaust hole array can form an airflow channel with the exhaust outlet 11, ensuring that hot air can be discharged through the hole array.

[0028] When the transformer is in a power supply guarantee scenario, the internal heat surges, leading to a surge in air intake. At this time, it is necessary to increase the exhaust area. The controller 50 outputs an action command to the drive assembly 30; the drive assembly 30, through transmission, drives multiple sliding rods 23 on one side of the exhaust plate 21 to slide along the transformer sidewall, thereby pushing the exhaust plate 21 outwards from the mounting groove 10. At this time, the folded plates 22 around the exhaust plate 21, being slidably connected to the sliding groove 12, extend and unfold synchronously from within the sliding groove 12 as the exhaust plate 21 slides out. The sliding groove 12 restricts the offset of the folded plates 22, ensuring stable unfolding direction. Ultimately, the unfolded folded plates 22 increase the area of ​​the exhaust hole array, increasing the effective exhaust area of ​​the exhaust port 11, accelerating the discharge of hot air from inside the transformer through the exhaust hole array and exhaust port 11, and reducing internal air pressure.

[0029] Once the transformer returns to normal operation, the exhaust area needs to be reduced. The controller 50 outputs a reverse command to the drive assembly 30; the drive assembly 30 drives the slide bar 23 to slide in the opposite direction, pulling the exhaust plate 21 back into the mounting slot 10; during the resetting process of the exhaust plate 21, the folded plates 22 around it are pulled by the exhaust plate 21 and guided by the slide groove 12, and simultaneously retract into the slide groove 12; finally, the exhaust plate 21 returns to the initial position of the mounting slot 10, the folded plates 22 are stored in the slide groove 12, and the exhaust hole array retains only the basic exhaust area of ​​the exhaust plate 21 itself, avoiding internal airflow turbulence caused by excessive exhaust and maintaining airflow balance.

[0030] When the folding plate 22 slides out with the exhaust plate 21, it unfolds, adding an exhaust hole array area to the base area of ​​the exhaust plate 21. Compared to the simple sliding out of the exhaust plate 21, this significantly expands the effective exhaust area, especially suitable for supply guarantee scenarios where the air intake surges and hot air needs to be quickly discharged, significantly improving hot air discharge efficiency and alleviating internal positive pressure issues. The folding plate 22 can be stored in the sliding groove 12 of the mounting slot 10. When the exhaust assembly 20 is reset to the second state, the folding plate 22 is completely hidden inside the mounting slot 10, without protruding outward or occupying extra space. This maintains the regularity of the transformer's outer wall and avoids increased wind resistance due to redundant structures in daily scenarios, reducing fan energy consumption and achieving adaptability for efficient exhaust under high load and energy-saving operation under low load.

[0031] Please see Figure 6 and Figure 7 The folding plate 22 includes a first plate body 221 and a second plate body 222; one end of the first plate body 221 is provided on the side wall of the exhaust plate 21, and the other end is provided with a first step 223 vertically; the second plate body 222 is slidably connected in the slide groove 12, and a second step 224 is provided on one side, and the second step 224 abuts against the first step 223.

[0032] It should be noted that the end of the first plate 221 closest to the exhaust plate 21 is fixedly connected to the perimeter of the exhaust plate 21 and can move synchronously with the sliding of the exhaust plate 21. The first plate 221 and the exhaust plate 21 form a rigid connection without relative sliding. The end of the first plate 221 furthest from the exhaust plate 21 forms a first step 223. The extension direction of the first step 223 is perpendicular to the sliding direction of the first plate 221. The first step 223 is a key structure for connecting with the second plate 222.

[0033] The second plate 222 is integrally embedded in the corresponding sliding groove 12 within the mounting groove 10, corresponding one-to-one with the sliding groove 12, and housed within the sliding groove 12. A second step 224 is formed on the side of the second plate 222 closest to the first plate 221, and the extension direction of the second step 224 is perpendicular to the sliding direction of the second plate 222. Furthermore, the orientation of the second step 224 is opposite to that of the first step 223, and the surface of the second step 224 abuts tightly against the surface of the first step 223, forming a limiting and force-transmitting structure. When there is no external force, the two steps remain relatively fixed due to the abutment; when there is an external force, the sliding force is transmitted through the abutment surface.

[0034] The air pressure sensor 40 detects the air pressure inside the transformer and transmits the signal to the controller 50. If the real-time air pressure exceeds the upper limit threshold, the controller 50 determines that the exhaust area needs to be expanded and outputs a positive command to the drive component 30. If the real-time air pressure drops below the lower limit threshold, it determines that the area needs to be reduced and outputs a reverse command.

[0035] After receiving a positive command to expand the exhaust, the drive assembly 30 drives the exhaust plate 21 to slide outward of the mounting groove 10 through the transmission structure. Simultaneously, the exhaust plate 21 pulls the fixedly connected first plate 221, causing the first plate 221 to move away from the transformer side wall. The first step 223 and the second step 224 abut tightly. When the first plate 221 moves, it applies a pulling force to the second plate 222 through the step abutment surface, causing the second plate 222 to slide outward from the depth of the slide groove 12. The first plate 221 slides out of the mounting groove 10 with the exhaust plate 21, and the second plate 222 slides out of the slide groove 12 with the first plate 221. The two plates unfold together and extend to the outside of the mounting groove 10, superimposing with the exhaust hole array of the exhaust plate 21, significantly expanding the overall exhaust area, accelerating the discharge of hot air through the hole array, and reducing the internal air pressure.

[0036] After the controller 50 outputs a reverse command, the drive assembly 30 drives the slide bar 23 to slide in the opposite direction, pulling the exhaust plate 21 back into the mounting slot 10; the exhaust plate 21 pulls the first plate 221 close to the transformer side wall, and the exhaust plate applies a thrust to the second plate 222 through surface contact; under the thrust and the guidance of the slide groove 12, the second plate 222 retracts synchronously into the depth of the slide groove 12, and the first plate 221 returns to the initial position of the mounting slot 10 with the exhaust plate 21; the first plate 221 and the second plate 222 are both housed in the mounting slot 10 and the slide groove 12, retaining only the basic exhaust area of ​​the exhaust plate 21 to maintain the internal airflow balance.

[0037] The first step 223 abuts against the second step 224, achieving rigid force transmission between the first plate 221 and the second plate 222. When the exhaust plate 21 slides, the first plate 221 and the second plate 222 are simultaneously subjected to force through the step surface, ensuring the consistency of the unfolding and resetting actions of the folding plate 22 and improving adjustment reliability. The series structure of the first plate 221 and the second plate 222 can drive the second plate 222 to slide out through the first plate 221, doubling the total unfolded length of the folding plate 22, further expanding the coverage area of ​​the exhaust hole array, more efficiently guiding the surge of hot air in the supply guarantee scenario, and more significantly alleviating the internal positive pressure.

[0038] Please see Figure 8 The drive assembly 30 includes a first rotary drive member 31 and a transmission assembly 32. The first rotary drive member 31 is disposed on the side wall of the transformer. The transmission assembly 32 has a power input end and a power output end. The power input end is connected to the output end of the first rotary drive member 31, and the power output end is connected to each slide rod 23.

[0039] It should be noted that the first rotary drive component 31 can be a motor, fixed in a suitable area on the inner wall of the transformer. Its installation position must meet the requirements of not interfering with the sliding of the exhaust assembly 20 and facilitating connection with the transmission assembly 32. It can be distributed close to the slide bar 23 and maintain an electrical connection with the controller 50, without obstructing the airflow channel inside the transformer or the detection range of the air pressure sensor 40.

[0040] The transmission assembly 32 serves as a power transmission intermediary and is located inside the transformer. The power input end of the transmission assembly 32 is directly connected to the output end of the first rotary drive component 31, with both coaxially aligned to ensure that the rotational power of the first rotary drive component 31 is completely transmitted to the transmission assembly 32. The power output end of the transmission assembly 32 establishes a transmission connection with multiple sliding rods 23 on one side of the exhaust plate 21. The power output end must be synchronously connected to all sliding rods 23, and the connection position must be set along the sliding direction of the sliding rods 23 to ensure that the transmission assembly 32 can drive the sliding rods 23 to slide back and forth in a straight line when it operates.

[0041] When the transformer is in a power supply guarantee scenario, the first rotary drive 31 receives a positive command, its output end begins to rotate, and transmits the rotational power to the power input end of the transmission component 32; the transmission component 32 converts the rotational power at the input end into linear motion at the power output end, and applies a thrust toward the outside of the transformer to the slide rod 23; under the action of the thrust, the multiple slide rods 23 slide outward synchronously along the sliding path of the inner wall of the transformer, thereby driving the exhaust plate 21 fixed thereto to slide outward to the outside of the mounting groove 10; when the exhaust plate 21 slides out, the folding plates 22 around it unfold synchronously under the guidance of the slide groove 12, ultimately increasing the exhaust area and accelerating the discharge of hot air to reduce the internal air pressure.

[0042] When the air pressure is restored, the first rotary drive 31 receives a reverse command, its output end rotates and the power is transmitted from the input end of the transmission component 32 to the output end, which is converted into a pulling force toward the inside of the transformer; the slide bar 23 slides inward synchronously under the action of the pulling force, pulling the exhaust plate 21 back into the mounting groove 10; during the reset process of the exhaust plate 21, the folding plate 22 is pulled and retracts into the slide groove 12 synchronously, and the exhaust component 20 returns to the initial state, maintaining the internal airflow balance.

[0043] The first rotary drive component 31 is small in size and can be flexibly installed in the unused area of ​​the inner wall of the transformer; the transmission component 32 can adjust its structure according to the distribution of the slide bar 23, without occupying too much space, and can adapt to the limited space environment of the transformer's internal windings and heat dissipation fins, avoiding interference with other core components.

[0044] Please see Figure 9 The transmission assembly 32 includes a connecting frame 321, a first rotating rod 322, and an eccentric wheel 323. The connecting frame 321 is connected to each sliding rod 23. The first rotating rod 322 is located on the side of the connecting frame 321 away from the sliding rod 23 and is rotatably connected to the transformer. One end of the rotating rod is connected to the first rotating drive component 31. The eccentric wheel 323 is sleeved on the rotating rod, and the surface of the eccentric wheel 323 is rolled against the connecting frame 321.

[0045] It should be noted that the connecting frame 321 can be a rigid rectangular frame structure located inside the transformer. One side of the frame is fixedly connected to multiple sliding rods 23 on one side of the exhaust plate 21, and the connection points are evenly distributed along the length of the connecting frame 321. The connecting frame 321 integrates the dispersed sliding rods 23 into a whole, ensuring that all sliding rods 23 can slide synchronously under force.

[0046] The first rotating rod 322 is a long, narrow rod located on the side of the connecting frame 321 away from the slide rod 23, and is fixed to the inner wall of the transformer via rotating connecting parts such as bearings. Both ends of the first rotating rod 322 are supported to ensure rotational stability. One end of the first rotating rod 322 is connected to the output end of the first rotating drive component 31, and can rotate around its own axis under the drive of the first rotating drive component 31, with the rotation direction perpendicular to the sliding direction of the connecting frame 321. The eccentric wheel 323 can be a cam structure, with its geometric center offset from the axis, and is fitted and fixed to the first rotating rod 322, allowing it to rotate synchronously with the rotating rod. The outer circumferential surface of the eccentric wheel 323 is in close contact with the surface of the connecting frame 321 away from the slide rod 23, and the contact point is located in the middle region of the connecting frame 321, ensuring balanced force. When the eccentric wheel 323 rotates with the rotating rod, its outer circumferential surface always maintains rolling contact with the connecting frame 321, pushing or pulling the connecting frame 321 through changes in eccentricity.

[0047] The number of eccentric wheels 323 can be multiple. Multiple eccentric wheels 323 are spaced apart on the first rotating rod 322, which can improve the force balance of the connecting frame 321.

[0048] When the transformer is in a power supply guarantee scenario, the first rotary drive 31 receives a positive command and drives the first rotary rod 322 to rotate, and the eccentric wheel 323 sleeved on the rotary rod rotates synchronously. Because the eccentric wheel 323 is eccentrically designed, its maximum eccentricity is close to the connecting frame 321, which generates a thrust on the connecting frame 321 toward the outside of the transformer. Under the action of the thrust, the connecting frame 321 drives the multiple sliding rods 23 fixed to it to slide outward synchronously, thereby pushing the exhaust plate 21 to slide out of the mounting groove 10. When the exhaust plate 21 slides out, the folding plates 22 around it unfold along the sliding groove 12, the effective area of ​​the exhaust hole array increases, and the hot air is discharged faster to reduce the internal air pressure.

[0049] When the air pressure is restored, the first rotary drive 31 receives a reverse command and drives the first rotating rod 322 to rotate. The eccentric wheel 323 rotates synchronously, and its minimum eccentricity point is close to the connecting frame 321, reducing the thrust on the connecting frame 321 or turning it into a pulling force; the connecting frame 321 drives the slide rod 23 to slide inward, pulling the exhaust plate 21 back into the mounting groove 10, and the folding plate 22 is simultaneously stored in the sliding groove 12; the effective area of ​​the exhaust hole array returns to its initial state, maintaining the internal airflow balance.

[0050] The eccentric wheel 323 directly rolls the connecting frame 321 on its outer peripheral surface, converting rotational motion into linear motion. This reduces frictional losses in structures such as gear meshing and chain drives, efficiently converting the power energy of the first rotating drive component 31 into the sliding kinetic energy of the exhaust assembly 20, thus improving the adjustment response speed. The connecting frame 321 rigidly connects multiple sliding rods 23 into a whole. The eccentric wheel 323 applies force to the connecting frame 321 at a single point or symmetrically at multiple points, ensuring that all sliding rods 23 are subjected to uniform force and have consistent sliding distances. Compared to driving each sliding rod 23 individually, this effectively prevents the exhaust plate 21 from tilting or jamming due to excessive local force, or structural deformation of the folding plate 22 due to asynchronous sliding, improving long-term operational stability. The rotation of the eccentric wheel 323 is a continuous circular motion, and its thrust and pull on the connecting frame 321 transition linearly with the eccentricity, ensuring a smooth and uninterrupted sliding process of the sliding rods 23 driving the exhaust assembly 20. Compared to rigid impact structures, this design reduces collision wear between the exhaust plate 21 and the mounting groove 10, and between the folding plate 22 and the sliding groove 12, extending the service life of components and avoiding internal airflow turbulence caused by impact.

[0051] Please see Figure 9 An elastic element 24 is fitted on the slide rod 23, and the two ends of the elastic element 24 are respectively connected to the transformer side wall and the exhaust plate 21.

[0052] It should be noted that the elastic element 24 can be a spring, sleeved on the slide rod 23 on one side of the exhaust plate 21, distributed along the length of the slide rod 23, and in a slightly pre-tightened state when the exhaust assembly 20 is not activated; its two ends are respectively fixed to the inner wall of the transformer and the surface of the exhaust plate 21 facing the inside of the transformer. The extension and retraction direction of the elastic element 24 is completely consistent with the sliding direction of the slide rod 23.

[0053] When the transformer is in a power supply guarantee scenario, the drive assembly 30 receives a positive command from the controller 50 to increase ventilation. Through the transmission structure, it applies an outward thrust to the slide rod 23, causing the exhaust plate 21 to slide outward from the mounting groove 10. At this time, the elastic element 24 sleeved on the slide rod 23 is stretched as the exhaust plate 21 moves away from the transformer sidewall, storing elastic potential energy during the elastic deformation process. As the exhaust plate 21 slides out, the folding plate 22 unfolds along the slide groove 12, increasing the ventilation area, accelerating the discharge of hot air, and causing the internal air pressure to drop. The elastic force of the elastic element 24 is opposite to the thrust of the drive assembly 30 at this time, forming resistance. However, because the thrust of the drive assembly 30 is greater than the elastic force of the elastic element 24, it can ensure that the exhaust assembly 20 can slide smoothly to its maximum stroke.

[0054] When the air pressure is restored, the drive assembly 30 receives a reverse command from the controller 50; the elastic element 24 releases its stored elastic potential energy, generating an elastic force toward the inside of the transformer, which works in conjunction with the reverse force of the drive assembly 30 to pull the slide bar 23 and the exhaust plate 21 back into the mounting groove 10; with the assistance of the elastic force, the exhaust plate 21 more smoothly drives the folding plate 22 back into the slide groove 12, and finally returns to its initial position; the elastic element 24 returns to its natural state, the elastic force disappears, ensuring that the exhaust assembly 20 is stably maintained in the second state.

[0055] The elastic force of the elastic element 24 provides auxiliary pulling force for the reset of the exhaust assembly 20. The elastic force can push the exhaust plate 21 to reset completely, avoiding residual exhaust area due to incomplete reset, ensuring that the exhaust area accurately returns to the initial value in non-supply guarantee scenarios, and maintaining airflow balance. When the exhaust assembly 20 slides out or resets quickly, the elastic element 24 absorbs some kinetic energy through deformation, reducing rigid collisions between the exhaust plate 21 and the edge of the mounting groove 10, and between the folding plate 22 and the slide groove 12; at the same time, the elastic force can offset some of the instantaneous impact force of the drive assembly 30, reduce the wear of the sliding connection point between the slide rod 23 and the transformer side wall, and extend the service life of the entire exhaust assembly 20 and drive system.

[0056] During the reset phase, the elastic force released by the elastic element 24 can replace part of the power output of the drive component 30, so that the drive component 30 only needs to provide a small reverse force to complete the reset, reducing the energy consumption of drive components such as motors; especially when frequently switching between supply guarantee scenarios and normal scenarios, the elastic element 24 can significantly reduce the energy consumption of the overall structure, meeting the energy-saving requirements.

[0057] Please see Figure 8 and Figure 10 The ventilation adjustment structure for the power supply scenario is also equipped with a pressure relief component 60, which includes a mounting frame 61, a baffle 62, and a second rotating rod 63. The mounting frame 61 is located on the side wall of the transformer and below the drive component 30. A pressure relief port 611 is provided on the mounting frame 61. The baffle 62 is rotatably connected to the mounting frame 61 and is used to block the pressure relief port 611. The second rotating rod 63 is rotatably connected inside the transformer and is connected to the first rotating rod 322. An eccentric roller 64 is sleeved on the second rotating rod 63, and the surface of the eccentric roller 64 is rolled against the surface of the baffle 62.

[0058] It should be noted that the mounting frame 61 is fixed to the side wall of the transformer, located below the drive assembly 30. The main body of the frame is a rigid frame structure, with a through pressure relief port 611 in the middle. The pressure relief port 611 communicates with the internal space of the transformer, serving as an auxiliary ventilation channel. The baffle 62 is mounted on the mounting frame 61 via hinges or other rotating connectors. The size of the baffle plate matches the pressure relief port 611. In its natural state, it fits against the surface of the mounting frame 61 to completely cover the pressure relief port 611. When rotated, it can deviate from the pressure relief port 611 to form an opening. The second rotating rod 63 is set parallel to the first rotating rod 322. Both ends are rotatably connected to the inner side wall of the transformer via bearings. It is located inside the mounting frame 61 and the baffle 62, and rotates synchronously with the first rotating rod 322 through a transmission structure. The eccentric roller 64 is sleeved and fixed on the second rotating rod 63. Its outer circumferential surface is in close contact with the side surface of the baffle 62 facing the inside of the transformer, with the contact point located in the middle area of ​​the baffle 62.

[0059] When the transformer is in a power supply guarantee scenario, the controller 50 transmits a positive signal to the first rotary drive 31. The first rotary drive 31 drives the first rotary rod 322 to rotate, and synchronously drives the second rotary rod 63 to rotate in the positive direction through the transmission connection. The eccentric wheel 323 on the first rotary rod 322 pushes the connecting frame 321, causing the slide rod 23 to slide out the exhaust plate 21, unfolding the folding plate 22 and increasing the area of ​​the top exhaust port 11. The eccentric roller 64 on the second rotary rod 63 rotates with the second rotary rod 63. Its eccentric structure causes the position in contact with the baffle 62 to gradually move away from the rotation center, applying an outward thrust to the baffle 62, pushing the baffle 62 to rotate around the rotation axis of the mounting frame 61, and gradually opening the pressure relief port 611. Finally, the top exhaust port 11 and the middle pressure relief port 611 open simultaneously. The exhaust port 11 improves the efficiency of hot air discharge, and the pressure relief port 611 discharges excess cold air, which can quickly reduce the internal air pressure of the transformer.

[0060] When the air pressure is restored, the controller 50 transmits a reverse signal to the first rotary drive 31, which drives the first rotary rod 322 to rotate, and the second rotary rod 63 rotates synchronously. The eccentric wheel 323 pulls the connecting frame 321, and the exhaust plate 21 and the folding plate 22 retract, reducing the area of ​​the top exhaust port 11. The eccentric roller 64 rotates in the opposite direction, and its contact point with the baffle 62 gradually approaches the center of rotation, reducing the thrust on the baffle 62. The baffle 62 rotates in the opposite direction under its own gravity, re-fits the mounting frame 61, and closes the pressure relief port 611. Finally, only the top basic exhaust port 11 is retained to maintain normal airflow balance.

[0061] A pressure relief component 60 is added to the exhaust component 20, forming a three-dimensional exhaust structure where the exhaust port 11 discharges hot air and the pressure relief port 611 discharges cold air. When the air pressure surges during power supply scenarios, the exhaust port 11 and the pressure relief port 611 open simultaneously, which can significantly increase the total cross-sectional area of ​​the exhaust, solve the problem that a single top exhaust cannot quickly dissipate a large amount of hot air, avoid the retention of hot air caused by excessive internal air pressure, and further ensure the safe operation of the transformer.

[0062] Please see Figure 8 and Figure 10 Both the first rotating rod 322 and the second rotating rod 63 are fitted with transmission wheels 70, and the two transmission wheels 70 are connected by a transmission belt.

[0063] It should be noted that transmission wheels 70 are respectively sleeved and fixed on the first rotating rod 322 and the second rotating rod 63. The transmission wheels 70 can be pulleys. The axes of the two transmission wheels 70 coincide with the axes of the corresponding rotating rods and are located on the same side along the length of the rotating rods, ensuring that the transmission belt can be horizontally connected. The surface of the transmission wheel 70 can be provided with grooves adapted to the transmission belt to prevent slippage. The transmission belt is sleeved in a ring between the two transmission wheels 70, and its inner surface meshes with or closely fits the grooves of the transmission wheels 70. The tension of the transmission belt is moderate, ensuring that the power transmission is slip-free while avoiding wear caused by excessive tension. Its position is in the gap between the two rotating rods, and it does not contact other components such as the inner wall of the transformer, the connecting frame 321, and the baffle 62, so there is no movement interference. The transmission structure formed by the transmission wheel 70 and the transmission belt is located at the end area of ​​the first rotating rod 322 and the second rotating rod 63. It does not affect the driving of the eccentric wheel 323 on the connecting frame 321 and the pushing of the eccentric roller 64 on the baffle 62. Moreover, the whole structure is located in the empty area of ​​the inner wall of the transformer, and does not block the exhaust hole, the pressure relief port 611 and the detection path of the air pressure sensor 40.

[0064] When the transformer is in a power supply guarantee scenario, the controller 50 transmits a positive signal to the first rotary drive 31, which drives the first rotary rod 322 to rotate, and the transmission wheel 70 on it rotates synchronously with the rod. The transmission wheel 70 transmits the rotational power to the transmission wheel 70 on the second rotary rod 63 through the transmission belt, driving the second rotary rod 63 to rotate synchronously. The eccentric wheel 323 on the first rotary rod 322 pushes the connecting frame 321, causing the exhaust assembly 20 to slide out to increase the area of ​​the top exhaust port 11. The eccentric roller 64 on the second rotary rod 63 pushes the baffle 62, causing the pressure relief port 611 to open to add a cold air exhaust path. The two work together to achieve air pressure balance inside the transformer.

[0065] When the air pressure is restored, the controller 50 transmits a positive signal to the first rotary drive 31, which drives the first rotary rod 322 to rotate. Through the transmission wheel 70 and the transmission belt, the second rotary rod 63 rotates synchronously. The eccentric wheel 323 pulls the connecting frame 321, and the exhaust assembly 20 is reset to reduce the area of ​​the top exhaust port 11. The eccentric roller 64 releases the thrust on the baffle 62, and the baffle 62 closes the pressure relief port 611. The two work together to restore the initial air path state.

[0066] Please see Figure 1 and Figure 11 A third rotating rod 81 is rotatably mounted on the outer wall of the transformer. The third rotating rod 81 is located above each mounting slot 10 and is fitted with multiple exhaust louvers 80, each exhaust louver 80 correspondingly covering each mounting slot 10. A second rotating drive component 82 is also provided on the outer wall of the transformer. The output end of the second rotating drive component 82 is connected to the third rotating rod 81, and the second rotating drive component 82 is electrically connected to the controller 50.

[0067] It should be noted that the third rotating rod 81 is a long, narrow rod that is horizontally rotated and mounted on the outer wall of the transformer, and is positioned directly above the multiple mounting slots 10. Its length covers the entire range of the mounting slots 10, and the axis of the rod is parallel to the direction of the mounting slots 10. Each exhaust louver 80 can be a rectangular blade, spaced apart and fixed to the third rotating rod 81, corresponding one-to-one with the mounting slot 10. The area of ​​each exhaust louver 80 is slightly larger than the opening area of ​​a single mounting slot 10. In its natural state, it hangs vertically downwards or tilts at a certain angle, completely covering the corresponding mounting slot 10. The edges of the blades are in contact with the outer wall of the transformer surrounding the mounting slot 10, without obstructing the sliding path of the folding plate 22. The louvers can rotate synchronously with the rotation of the third rotating rod 81, changing their relative angle with the mounting slot 10. The second rotary drive component 82 can be a motor, fixed to the end of the outer wall of the transformer. Its output end is fixedly connected to the end of the third rotary rod 81, and can directly drive the third rotary rod 81 to rotate around its own axis. The drive component is electrically connected to the controller 50, and its installation position does not obstruct the flipping trajectory of the exhaust louver 80 or other functional areas of the transformer.

[0068] In the scenario of ensuring supply, the internal air pressure of the transformer increases. The controller 50 outputs a positive command to the second rotary drive 82. The second rotary drive 82 drives the third rotary rod 81 to rotate, and drives all the exhaust louvers 80 to flip upwards in sync, fully opening the space above the mounting slot 10. This ensures that the sliding exhaust plate 21 and folding plate 22 are not blocked, and that hot air can be discharged unimpeded through the exhaust port 11 and the unfolded exhaust hole array. This, together with the exhaust assembly 20 and the pressure relief assembly 60, enhances heat dissipation.

[0069] After the air pressure is restored, the controller 50 outputs a reverse command to the second rotary drive 82, which can drive the louvers to rotate to the closed state, thus preserving most of the exhaust channel and guiding the hot air upward through the blade angle, while also blocking some falling debris from entering the mounting slot 10.

[0070] Secondly, please refer to Figures 1 to 11 The present invention also provides a dry-type transformer, including a ventilation adjustment structure for power supply scenarios.

[0071] It should be noted that in the supply guarantee scenario, the transformer load far exceeds the norm, and the heat generation of the windings increases sharply. To alleviate the temperature rise, the bottom fan automatically increases the air volume. A large amount of cold air rushes in, causing the internal air pressure to rise. When the air pressure sensor 40 detects that the air pressure exceeds the upper limit threshold, it transmits a signal to the controller 50. The first rotating drive component 31 is activated, which drives the slide rod 23 through the eccentric wheel 323 and the connecting frame 321, causing the folding plate 22 to unfold and the area of ​​the top exhaust port 11 to increase. The first rotating rod 322 drives the second rotating rod 63 to rotate synchronously through the transmission wheel 70 and the transmission belt. The eccentric roller 64 pushes the baffle 62 to open the pressure relief port 611, adding a cold air exhaust path. The second rotating drive component 82 drives the third rotating rod 81 to rotate, and the exhaust louvers 80 are fully opened to avoid blocking the top exhaust. This can quickly exhaust a large amount of hot air, prevent hot air from lingering in the winding gap, and suppress the temperature rise of the windings.

[0072] The beneficial effects of the dry-type transformer provided by this invention are as follows: Compared with the prior art, this dry-type transformer includes an airflow adjustment structure for power supply scenarios. In power supply scenarios, when the internal air pressure of the transformer increases due to a surge in load, the air pressure sensor 40 can detect the change in internal air pressure and transmit a signal to the controller 50. The controller 50 triggers the drive component 30 to drive the exhaust component 20 to slide out of the mounting slot 10 to increase the exhaust area and accelerate the discharge of hot air. When the air pressure decreases, the exhaust component 20 resets to maintain airflow balance. This effectively alleviates the problems of hot air retention and heat exchange obstruction caused by a surge in airflow in the prior art, ensuring the operational stability of the dry-type transformer in power supply scenarios and improving its heat dissipation reliability under high load conditions.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wind path adjustment structure for supply guarantee scenarios, characterized in that, include: Multiple mounting slots are provided on the top of the outer wall of the transformer, and exhaust vents are provided in the mounting slots; Multiple exhaust components are slidably disposed in each of the mounting slots. The exhaust components have a first state in which they slide out of the mounting slots to increase the exhaust area of ​​the exhaust port when the internal air pressure of the transformer increases, and a second state in which they reset after the internal air pressure of the transformer decreases. A drive component is disposed on the inner wall of the transformer and is connected to each of the exhaust components in a driving manner, and is used to drive the exhaust components to switch between the first state and the second state; A pressure sensor is installed inside the transformer and is used to detect the internal pressure of the transformer. The controller is electrically connected to the drive assembly and the pressure sensor, respectively.

2. The airflow adjustment structure for supply guarantee scenarios as described in claim 1, characterized in that, The mounting groove is provided with multiple sliding grooves; the exhaust assembly includes: The exhaust plate is slidably disposed in the mounting groove, and has multiple sliding rods on one side, each of which is slidably connected to the side wall of the transformer; Multiple folding plates are respectively arranged around the exhaust plate and are slidably connected to each of the grooves. Both the exhaust plate and the folding plate are provided with an array of exhaust holes.

3. The airflow adjustment structure for supply guarantee scenarios as described in claim 2, characterized in that, The folding plate includes: a first plate and a second plate; one end of the first plate is disposed on the side wall of the exhaust plate, and the other end is vertically provided with a first step; the second plate is slidably connected in the groove, and a second step is provided on one side, the second step abutting against the first step.

4. The airflow adjustment structure for supply guarantee scenarios as described in claim 2, characterized in that, The drive assembly includes a first rotary drive member and a transmission assembly. The first rotary drive member is disposed on the side wall of the transformer. The transmission assembly has a power input end and a power output end. The power input end is connected to the output end of the first rotary drive member, and the power output end is connected to each of the slide rods.

5. The airflow adjustment structure for supply guarantee scenarios as described in claim 4, characterized in that, The transmission assembly includes: The connecting frame is connected to each of the slide rods; The first rotating rod is located on the side of the connecting frame away from the slide rod and is rotatably connected inside the transformer. One end of the rotating rod is connected to the first rotating drive component. An eccentric wheel is sleeved on the rotating rod, and the surface of the eccentric wheel is rolled against the connecting frame.

6. The airflow adjustment structure for supply guarantee scenarios as described in claim 2, characterized in that, An elastic element is fitted onto the slide rod, and the two ends of the elastic element are respectively connected to the side wall of the transformer and the exhaust plate.

7. The airflow adjustment structure for supply guarantee scenarios as described in claim 5, characterized in that, The airflow regulation structure for the supply guarantee scenario is also equipped with a pressure relief component, which includes: An installation frame is provided on the side wall of the transformer and located below the drive assembly; a pressure relief port is provided on the installation frame. A baffle is rotatably connected to the mounting frame and is used to block the pressure relief port; The second rotating rod is rotatably connected inside the transformer and is connected to the first rotating rod in a transmission manner. An eccentric roller is sleeved on the second rotating rod, and the surface of the eccentric roller is rolled against the surface of the baffle.

8. The airflow adjustment structure for supply guarantee scenarios as described in claim 7, characterized in that, Both the first rotating rod and the second rotating rod are fitted with transmission wheels, and the two transmission wheels are connected by a transmission belt.

9. The airflow adjustment structure for supply guarantee scenarios as described in claim 1, characterized in that, A third rotating rod is rotatably mounted on the outer wall of the transformer. The third rotating rod is located above each of the mounting slots and is fitted with multiple exhaust louvers, each of which covers the respective mounting slot. A second rotating drive is also provided on the outer wall of the transformer. The output end of the second rotating drive is connected to the third rotating rod, and the second rotating drive is electrically connected to the controller.

10. A dry-type transformer, including the airflow regulation structure for power supply scenarios as described in any one of claims 1-9.

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