Intelligent power grid transformer with protection function

Abstract

The application discloses a kind of intelligent power grid transformer with protection function, it is related to intelligent power grid technical field, including protective shell, lift pedestal being installed on the protective shell and transformer being installed on the lift pedestal, ventilation mechanism is installed on the protective shell, the ventilation mechanism is used to prevent the internal temperature of the protective shell is too high, closure mechanism is installed on the protective shell, the closure mechanism is used to isolate the oxygen in the inside of the protective shell while preventing moisture from entering its inside, when high temperature is generated in transformer working process, dust in filter cotton pore can be removed, ventilation passage is dredged, ventilation effect is improved, normal convection of cold and hot air is guaranteed, internal environment temperature of cabinet is quickly reduced, when detector detects that smoke gas suspicious fire appears in the inside of protective shell, oxygen flow in the inside of protective shell can be isolated, oxygen in the inside of shell is isolated, combustion necessary combustion-supporting condition is cut off.

Description

Technical Field

[0001] This invention relates to the field of smart grid technology, specifically to a smart grid transformer with protective functions. Background Technology

[0002] Smart grid transformers are core infrastructure equipment in power transmission and distribution systems. They are prone to high temperatures during long-term continuous operation, and the equipment is often deployed in complex outdoor environments. The ventilation and filtration structures are exposed to the elements for extended periods, making them highly susceptible to accumulating large amounts of fine dust. Currently, the ventilation and filtration structures of traditional smart grid transformers have significant technical defects. The pores of conventional filter windows and filter cotton are prone to trapping and accumulating dust. Furthermore, under the high-temperature operating conditions of transformers, fine dust tends to adhere and solidify after being heated, becoming firmly stuck in the deep structure of the filter cotton. Conventional ventilation and simple blowing methods are insufficient to effectively clean the adhered dust, resulting in problems such as difficulty in cleaning high-temperature dust and incomplete dust removal.

[0003] Traditional smart grid transformers lack dedicated fireproof and oxygen-barrier protection structures, resulting in poor safety performance. When transformers operate at high temperatures for extended periods, experience abnormal loads, or line faults, internal short circuits and arc discharges can easily occur, igniting internal insulation materials and insulating oil, leading to equipment fires. Traditional transformers struggle to quickly block the combustion-supporting conditions in the early stages of a fire, and the continuous flow of oxygen inside the protective casing fuels the fire, causing small fires to spread rapidly and potentially leading to transformer tank rupture, insulating oil leakage, and widespread combustion. This not only damages the equipment but also easily triggers a chain reaction of fires in the distribution area, posing a significant safety hazard to the power grid. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a smart grid transformer with protective functions, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a smart grid transformer body with protective function, comprising a protective shell, a lifting base mounted on the protective shell, and a transformer body mounted on the lifting base, wherein the protective shell has an inlet hole, and the smart grid transformer body with protective function further includes: A ventilation mechanism, installed on the protective shell, is used to prevent the internal temperature of the protective shell from becoming too high; A sealing mechanism, installed on the protective shell, is used to isolate oxygen inside the protective shell while preventing moisture from entering its interior.

[0006] Preferably, the ventilation mechanism includes an external air intake frame mounted on the protective shell, a fixed frame mounted on the protective shell, a dual-axis motor mounted on the protective shell, a threaded rod mounted on the output end of the dual-axis motor, a movable frame mounted on the threaded rod, a soft brush mounted on the threaded rod, and a filter window mounted on the protective shell. The soft brush is used to improve the ventilation effect of the filter window. When the transformer body generates high temperature during operation, the soft brush can treat the dust accumulated inside the filter window, thereby removing the dust embedded in the filter cotton pores, clearing the ventilation passage, improving the ventilation effect, ensuring normal convection of hot and cold air, quickly reducing the internal ambient temperature of the enclosure, alleviating the risk of high temperature overload of the transformer body, avoiding accelerated insulation aging and overheating tripping faults caused by heat dissipation failure, and preventing fine dust from sticking and getting stuck deep in the soft brush after being heated, solving the problem of dust adhesion and difficulty in cleaning at high temperatures, maintaining filtration and ventilation efficiency for a long time, and eliminating the need for manual disassembly and replacement of filter cotton. The sealing mechanism includes a detector mounted on the protective shell, a connecting plate slidably mounted on the protective shell, a hinge plate mounted on the connecting plate, and a sliding rod mounted on the hinge plate. The sliding rod is slidably connected to the protective shell. The connecting plate is equipped with a sliding perforated plate. When the detector detects smoke inside the protective shell that is suspected to be on fire, the sliding perforated plate moves downward and covers the air inlet of the outer air inlet frame, which can isolate the oxygen flow inside the protective shell. In the event of a short circuit, arc ignition of insulating materials, or fire of insulating oil inside the transformer body, the oxygen inside the shell is isolated, the necessary combustion-supporting conditions are cut off, the fire is prevented from continuing to expand, a small fire is prevented from developing into a violent fire, the oil tank is prevented from rupturing, the fire is prevented from spreading outward, and the risk of cascading fires in the power distribution area is reduced.

[0007] Preferably, the protective shell has a groove, the bottom of the connecting plate is provided with a spring, the movable frame will push the hinge plate to move during operation, and the movable frame is slidably connected to the fixed frame.

[0008] Preferably, the enclosure mechanism further includes a fire-prevention mechanism installed on the protective shell. The fire-prevention mechanism includes an L-shaped plate rotatably mounted on the connecting plate, a storage box mounted on the protective shell, a rotating plate rotatably mounted on the storage box via a torsion spring, and a hinged frame mounted on the rotating plate rotatably. When a fire is detected, the dry powder stored inside the storage box can be poured out, which can quickly act on the initial electrical fire. It suppresses open flames by interrupting the combustion chain reaction. The dry powder does not have conductive properties. For electrical fire scenarios such as transformer bodies, compared with water-based fire extinguishing, it will not cause high-voltage circuit leakage or phase-to-phase short circuit. The fire extinguishing process is less likely to cause secondary electrical accidents. It is suitable for handling the initial fire situation of live faults. At the same time, it can suppress the combustion of flammable oil and gas, reduce the risk of box explosion, and can also work in conjunction with oxygen isolation to doubly block the combustion conditions and effectively prevent the fire from spreading and reigniting. The storage box contains dry powder, and the hinge frame is rotatably connected to the L-shaped plate.

[0009] Preferably, the fireproof mechanism further includes a sliding frame mounted on the rotating plate, a limiting plate mounted on the sliding frame, a counterweight wheel mounted on the sliding frame, and a push plate mounted on the limiting plate; The push plate is used to increase the falling speed of the dry powder. The counterweight wheel and the rotating plate are in contact with each other. During the dry powder spraying process, the flow rate of the dry powder is accelerated, the time for the extinguishing agent to reach the fire location is shortened, the burning area is quickly covered, the initial open flame is suppressed in time, and the fire is prevented from continuing to expand before the dry powder is completely discharged. The dry powder is prone to moisture and slight clumping when stored for a long time. Relying solely on its own weight, it is easy to cause bridging and blockage at the discharge port. By applying continuous thrust through the push plate, the accumulated dry powder is disturbed, the clumping is broken, and the dry powder is continuously discharged outward, avoiding the hidden danger of the dry powder not being released and the fire extinguishing failure.

[0010] Preferably, the limiting plate is slidably connected to the rotating plate, and the counterweight wheel will drive the sliding frame to move by its own weight.

[0011] Preferably, the ventilation mechanism further includes a vibration damping mechanism installed on the movable frame. The vibration damping mechanism includes a telescopic column installed on the lifting base, a hinge block one installed on the upper sliding end of the lifting base, an elastic telescopic rod installed on the hinge block one, and a hinge block two installed on the lower fixed end of the lifting base. The surface of the telescopic column is equipped with springs, which are used to absorb vibrations generated during operation. During the operation of the transformer body, the elastic telescopic column absorbs vibrations again under pressure, which can absorb vibrations generated by magnetostriction and load changes during the operation of the transformer body, block the transmission of vibrations to the protective shell, prevent cracking of the tank welds, loosening of fasteners, and oil leakage of the sealing structure, reduce mechanical stress, avoid electrical faults caused by insulation wear and loose joints, suppress tank resonance, and reduce operating noise. In addition, the springs can buffer external impacts and seismic loads, improve the vibration resistance of the equipment, delay the aging of internal insulation, and extend the service life of the transformer body.

[0012] Preferably, the damping mechanism further includes a second rotating plate mounted on the movable frame via a torsion spring, a protrusion mounted on the protective shell, and a striking roller mounted on the second rotating plate. The movable frame will drive the second rotating plate to move during operation.

[0013] Preferably, the second hinge block is rotatably connected to the elastic telescopic rod, the protective shell is in contact with the striking roller, and the striking roller is subjected to resistance generated by the protrusion during operation.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, when the transformer body generates high temperatures during operation, the soft brush can process the dust accumulated inside the filter window, thereby removing dust embedded in the filter cotton pores, clearing ventilation channels, improving ventilation efficiency, ensuring normal convection of hot and cold air, rapidly reducing the internal ambient temperature of the tank, mitigating the risk of high-temperature overload of the transformer body, avoiding accelerated insulation aging and overheating tripping faults caused by heat dissipation failure, and preventing fine dust from sticking and getting stuck deep in the soft brush after being heated, solving the problem of dust adhesion and difficulty in cleaning at high temperatures, maintaining long-term filtration and ventilation efficiency, and eliminating the need for manual disassembly and filter cotton replacement. When the detector detects smoke inside the protective shell that is suspected to be on fire, the sliding perforated plate moves downward and covers the air inlet of the outer air inlet frame, which can isolate the oxygen flow inside the protective shell. In the event of a short circuit, arc ignition of insulation materials, or fire of insulating oil inside the transformer body, the oxygen inside the shell is isolated, cutting off the necessary combustion-supporting conditions, preventing the fire from continuing to expand, preventing small fires from developing into violent combustion, preventing the oil tank from bursting, preventing the fire from spreading outward, and reducing the risk of chain fires in the power distribution area.

[0015] 2. In this invention, upon detection of a fire, the dry powder stored inside the storage box can be discharged, rapidly acting on initial electrical fires. It suppresses open flames by interrupting the combustion chain reaction. The dry powder is non-conductive, and compared to water-based fire extinguishing, it avoids high-voltage circuit leakage and phase-to-phase short circuits in electrical fire scenarios such as transformer fires. The extinguishing process is less likely to trigger secondary electrical accidents, making it suitable for initial fire handling of live faults. Simultaneously, it suppresses the combustion of flammable oil and gas, reducing the risk of explosion within the enclosure. Furthermore, it can work in conjunction with oxygen isolation to doubly block combustion conditions, effectively preventing the fire from spreading and reigniting. It can extinguish the fire before it expands or causes permanent damage to the windings, minimizing damage to the transformer body, reducing equipment scrapping and power outage losses, and providing sufficient time for maintenance personnel to arrive on-site. During the dry powder discharge process, the flow rate of the dry powder is accelerated, shortening the time it takes for the extinguishing agent to reach the fire location. The system allows for rapid coverage of the burning area, timely suppression of initial flames, and prevention of further fire spread before the dry powder is completely discharged. Dry powder is prone to moisture absorption and slight clumping during long-term storage; relying solely on its own weight can easily lead to bridging and blockage at the discharge port. The pusher plate applies continuous thrust to disturb the accumulated dry powder, break up clumps, and continuously discharge the dry powder, preventing the risk of insufficient dry powder release and fire extinguishing failure. Simultaneously, the pusher plate continuously moves along the tilting direction of the rotating plate, pushing most of the dry powder out, reducing residual dry powder in the tank, and ensuring that the designed rated dry powder quantity is fully applied to the fire area. This prevents fire extinguishing failure and reignition due to insufficient dry powder, ensuring sufficient dry powder to quickly disperse and cover the burning area. The pusher plate's thrust and the gravity generated by the tilting of the rotating plate combine to improve dry powder discharge efficiency, ensuring timely suppression of the initial fire. Combined with oxygen-barrier and flame-retardant technology, this significantly improves the reliability of the fire extinguishing system.

[0016] 3. In this invention, during the operation of the transformer body, the elastic telescopic rod absorbs pressure again, which can absorb the vibration generated by magnetostriction and load changes during the operation of the transformer body, block the transmission of vibration to the protective shell, prevent the cracking of the tank welds, loosening of fasteners, and oil leakage of the sealing structure, reduce mechanical stress, avoid electrical faults caused by insulation wear and loose joints, suppress tank resonance, and reduce operating noise. In addition, the spring can buffer external impacts and seismic loads, improve the vibration resistance of the equipment, delay the aging of internal insulation, extend the service life of the transformer body, and reduce the frequency of fault maintenance. During ventilation, it can destroy the adsorption between dust and the filter window, causing the attached dust to loosen and fall off, and break up the clumps of dust. It can be used in conjunction with the soft brush inserted into the filter window to achieve composite dust removal, improve the thoroughness of dust removal, prevent filter hole blockage and increase ventilation resistance, ensure the unobstructed heat dissipation channel of the transformer body, reduce dust intrusion into the tank to contaminate electrical components, reduce the risk of partial discharge, extend the service life of the filter components, effectively avoid overheating of the transformer body due to poor ventilation, and improve the overall temperature control and protection system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the transformer location structure of the present invention; Figure 3 This is a schematic diagram of the position structure of the lifting base of the present invention; Figure 4 This is a schematic diagram of the position and structure of the filter window and sliding perforated plate of the present invention; Figure 5 This is a schematic diagram of the position structure of the threaded rod and the movable frame of the present invention; Figure 6 This is a schematic diagram of the position structure of the movable frame and the flue gas detector of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point A in the middle; Figure 8 This is a schematic diagram of the storage box and rotating plate of the present invention at one position. Figure 9 This is a schematic diagram of the hinge frame position structure of the present invention; Figure 10 For the present invention Figure 8 Enlarged view of the structure at point B in the middle; Figure 11 For the present invention Figure 8 Enlarged view of the structure at point C in the middle; Figure 12 This is a schematic diagram of the external air intake frame position structure of the present invention.

[0018] The meanings of the labels in the diagram are as follows: 1. Protective shell; 2. Lifting base; 3. Transformer body; 4. External air intake frame; 5. Fixing frame; 6. Dual-axis motor; 7. Threaded rod; 8. Moving frame; 9. Soft brush; 10. Filter window; 11. Sliding perforated plate; 12. Detector; 13. Connecting plate; 14. Hinge plate; 15. Sliding rod; 16. Fireproof mechanism; 161. L-shaped plate; 162. Storage box; 163. Rotating plate one; 164. Hinge frame; 165. Sliding frame; 166. Limiting plate; 167. Counterweight wheel; 168. Push plate; 17. Vibration damping mechanism; 171. Telescopic column; 172. Hinge block one; 173. Elastic telescopic rod; 174. Hinge block two; 175. Rotating plate two; 176. Protrusion; 177. Striking roller. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please see Figures 1-7 One embodiment of the present invention is: a smart grid transformer with protective function, comprising a protective shell 1, a lifting base 2 mounted on the protective shell 1, and a transformer body 3 mounted on the lifting base 2. The protective shell 1 has an inlet hole. The smart grid transformer with protective function further includes: A ventilation mechanism is installed on the protective housing 1. The ventilation mechanism is used to prevent the internal temperature of the protective housing 1 from becoming too high. A sealing mechanism, installed on the protective housing 1, is used to isolate oxygen inside the protective housing 1 and prevent moisture from entering its interior.

[0021] The ventilation mechanism includes an external air intake frame 4 mounted on the protective shell 1, a fixed frame 5 mounted on the protective shell 1, a dual-axis motor 6 mounted on the protective shell 1, a threaded rod 7 mounted on the output end of the dual-axis motor 6, a movable frame 8 mounted on the threaded rod 7, the rotation of the threaded rod 7 will drive the movable frame 8 to move and rotate through the threaded groove on the surface, a soft brush 9 mounted on the threaded rod 7, and a filter window 10 mounted on the protective shell 1. The soft brush 9 is used to improve the ventilation effect of the filter window 10 and can handle the dust accumulated inside the filter window 10. The enclosure mechanism includes a detector 12 mounted on the protective shell 1, which transmits electrical signals to the dual-axis motor 6, a connecting plate 13 slidably mounted on the protective shell 1, a hinge plate 14 mounted on the connecting plate 13, and a sliding rod 15 mounted on the hinge plate 14. The hinge plate 14 can exert a downward pressing force on the connecting plate 13. The sliding rod 15 is slidably connected to the protective shell 1. The connecting plate 13 is equipped with a sliding perforated plate 11.

[0022] The protective shell 1 has a groove, and the bottom of the connecting plate 13 is provided with a spring. When the connecting plate 13 moves downward, it will drive the sliding hollow plate 11 to move downward. During operation, the moving frame 8 will push the hinge plate 14 to move. The moving frame 8 is slidably connected to the fixed frame 5.

[0023] In this embodiment, during operation: when the transformer generates high temperatures, the dual-axis motor 6 starts and drives the threaded rod 7 to rotate. The rotation of the threaded rod 7 drives the moving frame 8 to move through the threaded grooves on its surface. During the movement of the moving frame 8, the soft brush 9 moves synchronously. As the soft brush 9 moves, the brush on its surface penetrates into the interior of the filter window 10. Subsequently, the soft brush 9 can process the dust accumulated inside the filter window 10, thereby removing dust embedded in the filter cotton pores, clearing the ventilation passage, improving the ventilation effect, ensuring normal convection of hot and cold air, quickly reducing the internal ambient temperature of the enclosure, mitigating the risk of high-temperature overload of the transformer body 3, avoiding accelerated insulation aging and overheating tripping faults caused by heat dissipation failure, and preventing fine dust from sticking and getting stuck deep in the soft brush 9 after being heated, solving the problem of dust adhesion and difficulty in cleaning at high temperatures, maintaining long-term filtration and ventilation efficiency, and eliminating the need for manual disassembly and filter cotton replacement. When the detector 12 detects smoke inside the protective shell 1 that is suspected to be on fire, the detector 12 will send an electrical signal to the dual-axis motor. 6. When the movable frame 8 moves towards the side closer to the dual-axis motor 6, the rotation time of the threaded rod 7 can be extended, allowing the movable frame 8 to move a longer distance and get closer to the dual-axis motor 6. During this movement, the movable frame 8 will contact the hinge plate 14, allowing the hinge plate 14 to drive the sliding rod 15 to slide closer to the center position. At the same time, the hinge plate 14 can exert a downward squeezing force on the connecting plate 13. The downward movement of the connecting plate 13 will compress the spring at the bottom. Subsequently, the downward movement of the connecting plate 13 will drive the sliding perforated plate 11 to move downward. The downward movement of the sliding perforated plate 11 will cover the air inlet of the outer air inlet frame 4, which can isolate the oxygen flow inside the protective shell 1. Thus, when a short circuit, electric arc ignites the insulating material, or insulating oil catches fire inside the transformer body 3, the oxygen inside the shell is isolated, the necessary combustion-supporting conditions are cut off, the fire is prevented from continuing to expand, small fires are prevented from developing into violent combustion, the oil tank is prevented from rupturing, the fire spreads outward, and the risk of chain fires in the power distribution area is reduced.

[0024] Example 2: Please see Figures 8-10 Based on the above embodiments, in another embodiment of the present invention, the sealing mechanism further includes a fireproof mechanism 16 installed on the protective shell 1. The fireproof mechanism 16 includes an L-shaped plate 161 rotatably installed on the connecting plate 13, a storage box 162 installed on the protective shell 1, a rotating plate 163 rotatably installed on the storage box 162 by a torsion spring, and a hinge frame 164 installed on the rotating plate 163. The downward movement of the L-shaped plate 161 will drive the hinge frame 164 to move downward synchronously. The storage box 162 contains dry powder, and the hinge frame 164 is rotatably connected to the L-shaped plate 161.

[0025] The fire protection mechanism 16 also includes a sliding frame 165 installed on the rotating plate 163, a limiting plate 166 installed on the sliding frame 165, a counterweight wheel 167 installed on the sliding frame 165, and a push plate 168 installed on the limiting plate 166. When the rotating plate 163 is tilted, the counterweight wheel 167 will slide downward by gravity. Among them, the push plate 168 is used to increase the falling speed of the dry powder, the counterweight wheel 167 is in contact with the rotating plate 163, the limiting plate 166 is slidably connected to the rotating plate 163, the rotation of the rotating plate 163 will open the outlet of the storage box 162, and the counterweight wheel 167 will drive the sliding frame 165 to move by its own gravity.

[0026] In this embodiment, when a fire is detected, the connecting plate 13 moves downward, causing the L-shaped plate 161 to move downward. The downward movement of the L-shaped plate 161 causes the hinge frame 164 to move downward simultaneously. During the downward movement of the hinge frame 164, the rotating plate 163 rotates downward. The rotation of the rotating plate 163 opens the outlet of the storage box 162, allowing the dry powder stored inside the storage box 162 to pour out. This can quickly act on initial electrical fires, suppressing open flames by interrupting the combustion chain reaction. The dry powder does not have conductive properties. For electrical fire scenarios such as those involving the transformer body 3, compared to water-based fire extinguishing, it will not cause leakage in the high-voltage circuit or phase-to-phase fires. Short circuits and fire extinguishing processes are less likely to cause secondary electrical accidents, making it suitable for initial fire handling during live faults. It also suppresses the combustion of flammable oil and gas, reducing the risk of explosion within the enclosure. Furthermore, it can work in conjunction with oxygen isolation to doubly block combustion conditions, effectively preventing the fire from spreading and reigniting. It can spray immediately after the detector 12 detects a fire signal, extinguishing the fire before it spreads or causes permanent damage to the windings, minimizing damage to the transformer body 3, reducing equipment scrapping and power outage losses, and providing sufficient time for maintenance personnel to arrive on-site. During the dry powder spraying process, the rotating plate 163 will be tilted, at which time the counterweight wheel 167 will pass through... The extinguishing agent slides downwards under gravity, causing the sliding frame 165 to slide synchronously. The sliding frame 165 then drives the limiting plate 166 to slide, which in turn drives the pushing plate 168 to slide. During its movement, the pushing plate 168 comes into contact with the dry powder and can quickly push it out, accelerating the flow of the dry powder, shortening the time it takes for the extinguishing agent to reach the fire location, rapidly covering the burning area, and suppressing the initial open flame in time. This prevents the fire from continuing to expand before the dry powder has completely flowed out. Dry powder is prone to moisture absorption and slight clumping during long-term storage. Relying solely on its own weight can easily cause bridging and blockage at the discharge port. By applying a continuous pushing force through the pushing plate 168, the accumulated dry powder is disturbed. This mechanism breaks up agglomerates and continuously discharges dry powder, preventing potential hazards such as insufficient dry powder release and fire extinguishing failure. Simultaneously, the pusher plate 168 continuously moves along the tilting direction of the rotating plate 163, pushing out most of the dry powder, reducing dry powder residue in the tank, and ensuring that the designed rated dry powder amount is fully applied to the fire area. This prevents fire extinguishing failure and fire reignition due to insufficient dry powder, ensuring that sufficient dry powder quickly disperses and covers the burning area. The thrust of the pusher plate 168 and the gravity generated by the tilting of the rotating plate 163 combine to improve the dry powder discharge efficiency, ensuring that the initial fire is suppressed in a timely manner. In conjunction with oxygen isolation and flame retardancy, this significantly improves the reliability of the fire extinguishing system.

[0027] Example 3: Please see Figures 8-12Based on the above embodiments, in another embodiment of the present invention, the ventilation mechanism further includes a vibration damping mechanism 17 installed on the movable frame 8. The vibration damping mechanism 17 includes a telescopic column 171 installed on the lifting base 2, the vibration generated during the operation of the transformer body 3 is transmitted to the telescopic column 171, a hinge block 172 installed on the upper sliding end of the lifting base 2, an elastic telescopic rod 173 installed on the hinge block 172, and a hinge block 174 installed on the lower fixed end of the lifting base 2. The surface of the telescopic column 171 is equipped with a spring, which is used to absorb the vibration generated during operation.

[0028] The damping mechanism 17 also includes a rotating plate 175 mounted on the movable frame 8 via a torsion spring, the movable frame 8 moving will drive the rotating plate 175 to move, a protrusion 176 mounted on the protective shell 1, and a striking roller 177 mounted on the rotating plate 175. The movement of the rotating plate 175 will drive the striking roller 177 to move. During operation, the movable frame 8 will drive the rotating plate 175 to move, and the striking roller 177 will drive the rotating plate 175 to swing synchronously.

[0029] The hinge block 174 is rotatably connected to the elastic telescopic rod 173, and the protective shell 1 is in contact with the striking roller 177. During operation, the striking roller 177 will be subject to the resistance generated by the protrusion 176.

[0030] In this embodiment, during the operation of the transformer body 3, the lifting base 2 will vibrate and shake. This vibration is then transmitted to the telescopic column 171. The telescopic column 171 absorbs and buffers the vibration through its surface-mounted springs. Simultaneously, the lifting base 2 applies downward pressure to the hinge block 172, compressing the elastic telescopic rod 173. The elastic telescopic rod 173 further absorbs the pressure, thus absorbing the vibration generated by magnetostriction and load changes during the operation of the transformer body 3. This prevents the vibration from being transmitted to the protective shell 1, preventing cracking of the shell welds, loosening of fasteners, and oil leakage from the sealing structure. It also reduces mechanical stress, avoids electrical faults caused by insulation wear and loose joints, suppresses shell resonance, and reduces operating noise. Furthermore, the springs buffer external impacts and seismic loads, improving the equipment's vibration resistance, delaying internal insulation aging, extending the transformer's service life, and reducing the frequency of fault repairs. During ventilation, the movement... The movement of the moving frame 8 will drive the rotating plate 175 to move, which in turn will drive the striking roller 177 to move. During the movement of the striking roller 177, it will come into contact with the protrusion 176 and be forced to swing through the squeezing force. Subsequently, the striking roller 177 will drive the rotating plate 175 to swing synchronously. After the striking roller 177 passes the protrusion 176, the rotating plate 175 will generate multiple impacts on the protective shell 1 through the rotation of the torsion spring. The impact force will then be transmitted to the filter window 10, which can destroy the adsorption between the dust and the filter window 10, causing the attached dust to loosen and fall off, and breaking up the clumps of dust. It can be used in conjunction with the soft brush 9 that extends into the filter window 10 to achieve composite dust removal, improve the thoroughness of dust removal, prevent filter hole blockage and increase ventilation resistance, ensure the heat dissipation channel of the transformer body 3 is unobstructed, reduce dust intrusion into the inside of the box to contaminate electrical components, reduce the risk of partial discharge, extend the service life of the filter components, effectively avoid transformer overheating due to poor ventilation, and improve the overall temperature control and protection system.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart grid transformer with protective function, comprising a protective shell (1), a lifting base (2) mounted on the protective shell (1), and a transformer body (3) mounted on the lifting base (2), wherein the protective shell (1) has an inlet hole, characterized in that, The smart grid transformer with protective functions also includes: A ventilation mechanism is installed on the protective shell (1) to prevent the internal temperature of the protective shell (1) from becoming too high; A sealing mechanism is installed on the protective shell (1) to isolate oxygen inside the protective shell (1) and prevent moisture from entering its interior.

2. The smart grid transformer with protective function according to claim 1, characterized in that: The ventilation mechanism includes an external air intake frame (4) mounted on the protective shell (1), an external air intake frame (4) mounted on the protective shell (1), a fixed frame (5) mounted on the protective shell (1), a dual-axis motor (6) mounted on the protective shell (1), a threaded rod (7) mounted on the output end of the dual-axis motor (6), a movable frame (8) mounted on the threaded rod (7), a soft brush (9) rotatably mounted on the threaded rod (7), and a filter window (10) mounted on the protective shell (1). The soft brush (9) is used to improve the ventilation effect of the filter window (10). The enclosure mechanism includes a detector (12) mounted on the protective shell (1), a connecting plate (13) slidably mounted on the protective shell (1), a hinge plate (14) mounted on the connecting plate (13), and a sliding rod (15) mounted on the hinge plate (14). The connecting plate (13) is equipped with a sliding perforated plate (11), and the sliding rod (15) is slidably connected to the protective shell (1).

3. The smart grid transformer with protective function according to claim 2, characterized in that: The protective shell (1) has a groove, and the bottom of the connecting plate (13) is provided with a spring. The moving frame (8) will push the hinge plate (14) to move during operation. The moving frame (8) is slidably connected to the fixed frame (5).

4. The smart grid transformer with protective function according to claim 2, characterized in that: The enclosure mechanism also includes a fireproof mechanism (16) installed on the protective shell (1). The fireproof mechanism (16) includes an L-shaped plate (161) rotatably installed on the connecting plate (13), a storage box (162) installed on the protective shell (1), a rotating plate (163) rotatably installed on the storage box (162) by a torsion spring, and a hinge frame (164) installed on the rotating plate (163). The storage box (162) contains dry powder, and the hinge frame (164) is rotatably connected to the L-shaped plate (161).

5. The smart grid transformer with protective function according to claim 4, characterized in that: The fireproof mechanism (16) further includes a sliding frame (165) installed on the rotating plate (163), a limiting plate (166) installed on the sliding frame (165), a counterweight wheel (167) installed on the sliding frame (165), and a push plate (168) installed on the limiting plate (166). The push plate (168) is used to increase the falling speed of the dry powder, and the counterweight wheel (167) is in contact with the rotating plate (163).

6. The smart grid transformer with protective function according to claim 5, characterized in that: The limiting plate (166) is slidably connected to the rotating plate (163), and the counterweight wheel (167) will drive the sliding frame (165) to move by its own weight.

7. The smart grid transformer with protective function according to claim 6, characterized in that: The ventilation mechanism also includes a damping mechanism (17) installed on the movable frame (8). The damping mechanism (17) includes a telescopic column (171) installed on the lifting base (2), a hinge block one (172) installed on the upper sliding end of the lifting base (2), an elastic telescopic rod (173) installed on the hinge block one (172), and a hinge block two (174) installed on the lower fixed end of the lifting base (2). The surface of the telescopic column (171) is provided with a spring, which is used to absorb the vibration generated during operation.

8. The smart grid transformer with protective function according to claim 7, characterized in that: The damping mechanism (17) also includes a rotating plate two (175) mounted on the movable frame (8) by a torsion spring, a protrusion (176) mounted on the protective shell (1), and a striking roller (177) mounted on the rotating plate two (175). The movable frame (8) will drive the rotating plate two (175) to move during operation.

9. The smart grid transformer with protective function according to claim 8, characterized in that: The hinge block 2 (174) is rotatably connected to the elastic telescopic rod (173), the protective shell (1) is in contact with the striking roller (177), and the striking roller (177) will be subjected to resistance generated by the protrusion (176) during operation.

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