A transformer

Abstract

The application relates to a transformer and relates to the technical field of transformers, which comprises an oil tank and a cooling tank, the transformer body is arranged in the oil tank and filled with insulating oil, and the transformer body is soaked in the insulating oil. The cooling tank is provided with a slidable adjusting plate, which divides the cooling tank into a storage chamber and an oil suction chamber, the storage chamber is communicated with the lower part of the oil tank through a first oil conveying pipe provided with a first one-way valve, the oil suction chamber is communicated with the upper part of the oil tank through a second oil conveying pipe provided with a second one-way valve, and a driving assembly for driving the adjusting plate to slide is further arranged, and the driving assembly is connected with a storage battery powered by a solar cell panel. The application realizes the technical effects of energy saving and environmental protection by utilizing solar energy, guarantees efficient operation of the transformer by circulating the insulating oil, and prolongs the service life of the transformer.

Description

Technical Field

[0001] This application relates to the field of transformer technology, and in particular to a transformer. Background Technology

[0002] Transformers, as crucial equipment in power systems, undertake key functions such as voltage transformation, power distribution, and transmission, playing an irreplaceable role in various fields of modern industry, commerce, and daily life. With the continuous growth of electricity demand and the increasing prominence of energy issues, the performance requirements for transformers are also becoming increasingly stringent. They must not only ensure stable and reliable operation but also focus on energy conservation and environmental protection to achieve sustainable development. Traditional transformers face numerous challenges in actual operation, such as effectively controlling temperature and properly managing insulating oil. These issues directly affect the transformer's efficiency, service life, and operational safety.

[0003] Traditional technologies employ various methods to address transformer cooling and insulating oil circulation issues. Early methods often used air-cooling systems, employing fans and other equipment to accelerate airflow and remove heat generated by the transformer. This method is relatively low-cost and simple to install and maintain, suitable for small transformers or locations with low cooling requirements. Water-cooling systems also exist, utilizing the high specific heat capacity of water to absorb heat from the transformer through circulating water, offering good cooling performance and widely used in transformers in large substations. Additionally, some methods connect radiators directly to the transformer, using large-area heat sinks to increase heat dissipation area and improve efficiency. Regarding insulating oil, the process typically involves periodically replacing all the insulating oil or using filters to remove impurities, but these methods lack effective automatic circulation and control mechanisms.

[0004] However, existing cooling and insulating oil treatment methods have significant drawbacks. Air-cooled and water-cooled systems rely primarily on external environmental conditions for heat dissipation, making them poorly adaptable to the dynamic heat demands generated by changes in transformer load. This makes precise temperature control difficult, easily leading to energy waste or insufficient cooling. Regularly replacing the insulating oil is not only costly and cumbersome, but also fails to address timely and effective changes in the insulating oil's performance during operation. Furthermore, traditional methods lack an efficient and intelligent insulating oil circulation and cooling system, unable to flexibly adjust according to the transformer's operating status in real time, which is detrimental to maintaining long-term, stable, and high-performance operation of the transformer. Summary of the Invention

[0005] The purpose of this application is to overcome the above-mentioned technical problems and provide a transformer.

[0006] A transformer includes an oil tank, inside which a transformer body is disposed and filled with insulating oil, the transformer body being immersed in the insulating oil, and a cooling box.

[0007] An adjustable plate is slidably installed inside the cooling box, which divides the cooling box into a storage chamber and an oil suction chamber. The storage chamber is filled with cooled, unused insulating oil.

[0008] The storage chamber is connected to the lower part of the oil tank through a first oil supply pipe, and a first one-way valve is installed on the first oil supply pipe to prevent oil from flowing into the storage chamber.

[0009] The oil suction chamber is connected to the upper part of the oil tank through a second oil supply pipe. A second one-way valve is installed on the second oil supply pipe to prevent oil from flowing into the oil tank.

[0010] The cooling box is equipped with a drive assembly, which is connected to an adjustment plate to drive it to slide within the cooling box;

[0011] The drive unit is connected to a battery, and the battery is connected to a solar panel.

[0012] By adopting the above technical solution, the transformer body is installed in the oil tank and filled with insulating oil, which can ensure the normal operation of the transformer; the regulating plate in the cooling box separates the storage chamber and the oil suction chamber. The storage chamber is filled with unused insulating oil for cooling. Combined with the first and second oil delivery pipes and the one-way valve, the insulating oil in the oil tank can be circulated and replaced, reducing the oil temperature; the drive component can drive the regulating plate to slide, making the circulation of insulating oil more stable; the solar panel and the battery provide power to the drive component, achieving the effect of environmental protection and energy saving.

[0013] Optionally, leak-proof sleeves are installed in the storage chamber and the oil suction chamber, respectively. The leak-proof sleeves cooperate with the cooling box and the regulating plate to form the oil storage chamber and the oil suction chamber, respectively. The first oil delivery pipe and the second oil delivery pipe are connected to the leak-proof sleeves at the corresponding positions.

[0014] By adopting the above technical solution, the leak-proof sleeve, cooling box, and regulating plate cooperate to form an oil storage chamber and an oil suction chamber, and the first and second oil supply pipes are connected to the leak-proof sleeves at corresponding positions, ensuring that the oil in the oil storage chamber or oil suction chamber will not leak when the regulating plate slides. Simultaneously, the installation of an oil tank, transformer body, insulating oil, cooling box, regulating plate, storage chamber, oil suction chamber, first oil supply pipe, first one-way valve, second oil supply pipe, second one-way valve, drive assembly, battery, and solar panel enables the cyclic replacement of the insulating oil in the oil tank, ensuring the normal operation of the transformer body, and achieving environmental protection and energy saving through solar power supply.

[0015] Optionally, the leak-proof sleeve has one-piece molded sidewalls with folding creases.

[0016] By adopting the above technical solution, the leak-proof sleeve with folded indentations can effectively improve the service life of the leak-proof sleeve while ensuring that the oil in the storage cavity or oil suction cavity does not leak when the regulating plate slides.

[0017] Optionally, the regulating plate is equipped with a third check valve, through which the oil in the suction chamber of the third check valve flows toward the storage chamber, and a filter assembly is provided at one end of the third check valve in the suction chamber.

[0018] By adopting the above technical solution, after the temperature of the insulating oil in the transformer tank rises, it flows into the oil suction chamber through the second oil delivery pipe. The oil in the oil suction chamber can flow into the storage chamber through the third one-way valve to achieve circulation. The filter component can block impurities in the replaced insulating oil, so that the insulating oil can be purified and reused, ensuring the normal operation of the transformer.

[0019] Optionally, the cooling box is equipped with a heat dissipation component to cool the internal oil, and the heat dissipation component is electrically connected to the battery.

[0020] By adopting the above technical solution, the cooling box is equipped with heat dissipation components to cool the internal oil and is electrically connected to a battery powered by a solar panel. This can cool the replaced insulating oil, ensure the cooling effect of the insulating oil, ensure the normal operation of the transformer body, and at the same time achieve environmental protection and energy saving by using solar energy.

[0021] Optionally, the drive assembly includes a first cylinder and a second cylinder; the piston rod of the first cylinder extends into the storage chamber and is connected to the adjusting plate; the piston rod of the second cylinder extends into the oil suction chamber and is connected to the adjusting plate; a buffer spring is sleeved on the piston rod of the first cylinder or the second cylinder, and the two ends of the buffer spring abut against the adjusting plate and the inner wall of the cooling box, respectively.

[0022] By adopting the above technical solution, the first cylinder and the second cylinder serve as driving components, and the piston rods are respectively connected to the adjusting plate, which can accurately drive the adjusting plate to slide in the cooling box; the buffer spring is sleeved on the piston rod and abuts against the adjusting plate and the inner wall of the cooling box, which can reduce the vibration and impact generated when the adjusting plate moves, and improve the stability and service life of the equipment.

[0023] Optionally, the cylinder body of the first cylinder is connected to a bidirectional screw output pump via a pipe, the bidirectional screw output pump is connected to the cylinder body of the second cylinder via a pipe, and the bidirectional screw output pump is electrically connected to the battery.

[0024] By adopting the above technical solution, a bidirectional screw output pump powered by solar energy is used to control the gas flow of the first and second cylinders, thereby driving the regulating plate to slide up and down in the cooling box to complete the circulation of insulating oil between the oil tank and the cooling box, ensuring the normal operation of the transformer.

[0025] Optionally, the oil tank is equipped with a temperature sensor, which is electrically connected to the bidirectional screw output pump to control the output direction of the bidirectional screw output pump.

[0026] By adopting the above technical solution, a temperature sensor is installed in the oil tank and electrically connected to the bidirectional screw output pump. This sensor can detect the temperature of the insulating oil in the upper part of the oil tank. When the temperature reaches a certain value, it can control the output direction of the bidirectional screw output pump, causing the adjusting plate to slide and realize the exchange of insulating oil in the upper part of the oil tank with the insulating oil in the storage chamber, thereby reducing the oil temperature of the insulating oil in the oil tank.

[0027] Optionally, a liquid level detector is installed in the storage chamber. The liquid level detector is electrically connected to a bidirectional screw output pump. After the liquid level detector is triggered, it drives the bidirectional screw output pump to input the gas in the second cylinder into the first cylinder. By adopting the above technical solution, with the liquid level detector in the storage chamber electrically connected to the bidirectional screw output pump, and the pump driving the pump to input the gas in the second cylinder into the first cylinder after triggering, the adjusting plate can slide downwards when it reaches a certain position, allowing the oil in the oil suction chamber to flow into the storage chamber after filtration, thus realizing the recycling of insulating oil and avoiding resource waste.

[0028] Optionally, the first or second oil pipeline can be a siphon pipeline.

[0029] By adopting the above technical solution and using a siphon pipe as the first or second oil delivery pipe, the siphon effect can be triggered when the oil level in the tank rises, allowing the hot oil in the tank to flow into the oil suction chamber through the second oil delivery pipe. At the same time, the low-temperature insulating oil in the storage chamber flows into the tank, realizing the circulation and replacement of the insulating oil, thereby reducing the temperature of the insulating oil in the tank and ensuring the normal operation of the transformer body.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. The storage chamber and the oil suction chamber are separated by the regulating plate in the cooling box. With the first oil delivery pipe, the second oil delivery pipe and the one-way valve, the insulating oil can be circulated, the temperature of the insulating oil in the oil tank can be reduced, and the normal operation of the transformer body can be guaranteed.

[0032] 2. The drive assembly is powered by solar panels and batteries, which is relatively environmentally friendly and energy-saving, and can drive the adjustment plate to slide, promoting the circulation of insulating oil;

[0033] 3. The leak-proof sleeve, together with the cooling box and regulating plate, forms an oil storage chamber or oil suction chamber to prevent oil leakage. At the same time, the folding indentations on the side wall of the leak-proof sleeve can extend its service life. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0035] Figure 2 This is a schematic diagram of the cooling box structure of Embodiment 1 of this application, mainly showing the leak-proof sleeve;

[0036] Figure 3yes Figure 2 A schematic diagram of the cross-sectional structure along plane AA.

[0037] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this application;

[0038] Figure 5 This is a structural schematic diagram of Embodiment 2 of this application, mainly showing the fan and the regulating plate;

[0039] Figure 6 This is a structural schematic diagram of the cooling box in Embodiment 2 of this application, mainly showing the leak-proof sleeve;

[0040] Figure 7 This is a schematic diagram of the cooling box in Embodiment 2 of this application, mainly showing the third one-way valve;

[0041] Figure 8 yes Figure 6 Schematic diagram of the cross-sectional structure along the BB plane;

[0042] Figure 9 yes Figure 8 A magnified structural diagram of part A in the middle.

[0043] Figure Descriptions: 1. Oil tank; 2. Cooling tank; 3. Slide rail; 4. Adjusting plate; 5. Storage chamber; 6. Oil suction chamber; 7. Leak-proof sleeve; 8. Folding indentation; 9. Storage cavity; 10. First oil delivery pipe; 11. First one-way valve; 12. Oil suction chamber; 13. Second oil delivery pipe; 14. Second one-way valve; 15. Solar panel; 16. Battery; 17. Fan; 18. First temperature sensor; 19. Third one-way valve; 20. First filter cover; 21. Second filter cover; 22. Drive groove; 23. Sealing groove; 24. Rotary bearing; 25. Sealing plate; 26. Sealing ring; 27. Rotary motor; 28. Power groove; 29. ​​First cylinder; 30. Second cylinder; 31. First buffer spring; 32. Second buffer spring; 33. Bidirectional screw output pump; 34. Second temperature sensor; 35. Liquid level detector. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 This application will be described in further detail below. Example

[0045] A transformer, reference Figure 1 The system includes an oil tank 1 and a cooling tank 2. The transformer body is installed inside the oil tank 1, which is filled with insulating oil, immersing the transformer body in the oil. The cooling tank 2 is used to replace the insulating oil in the oil tank 1, thus ensuring the normal operation of the transformer body.

[0046] Reference Figure 1, Figure 2 Four slide rails 3 are fixedly connected to the inner wall of the cooling box 2 at the top corner. Sliding blocks are slidably connected inside the slide rails 3, and adjusting plates 4 are fixedly connected to the sliding blocks. The adjusting plates 4 can slide up and down along the slide rails 3 through the sliding blocks. In addition, the adjusting plates 4 divide the interior of the cooling box 2 into a storage chamber 5 and an oil suction chamber 6, with the storage chamber 5 located above the oil suction chamber 6. Leak-proof sleeves 7 are fixedly connected to the two symmetrical surfaces of the adjusting plates 4. The surfaces of the leak-proof sleeves 7 are integrally formed with folded indentations 8 similar to those of a corrugated pipe.

[0047] Reference Figure 1 , Figure 2 , Figure 3 The leak-proof sleeve 7 on the surface of the storage chamber 5 is attached to the regulating plate 4. The end of the sleeve, away from the regulating plate 4, is fixedly connected to the inner wall of the top surface of the cooling box 2. This, together with the cooling box 2 and the regulating plate 4, forms a sealed storage cavity 9 within the storage chamber 5. Furthermore, the storage cavity 9 is connected to a first oil supply pipe 10. A first one-way valve 11 is fixedly connected to the lower surface of the oil tank 1. The output end of the first oil supply pipe 10 is connected to the first one-way valve 11 to prevent the insulating oil in the oil tank 1 from flowing back into the storage cavity 9. Simultaneously, the first oil supply pipe 10 is a siphon pipe, with its "U"-shaped inlet for triggering the siphon effect positioned close to the storage cavity 9.

[0048] The anti-leakage sleeve 7 on the surface of the oil suction chamber 6 is attached to the regulating plate 4. The end of the sleeve away from the regulating plate 4 is fixedly connected to the inner wall of the bottom surface of the cooling box 2, thereby forming a sealed oil suction chamber 12 in the oil suction chamber 6 through cooperation with the cooling box 2 and the regulating plate 4. In addition, the oil suction chamber 12 is connected to a second oil supply pipe 13. A second one-way valve 14 is fixedly connected to the upper surface of the oil tank 1. The input end of the second oil supply pipe 13 is connected to the second one-way valve 14 to prevent the insulating oil in the oil suction chamber 12 from flowing back into the oil tank 1. At the same time, the second oil supply pipe 13 is a siphon pipe, and the "U" for triggering the siphon effect is set close to the oil tank 1.

[0049] The implementation principle of Embodiment 1 of this application is as follows: Unused insulating oil is first injected into the storage chamber 9. During use, the transformer body releases heat energy to the insulating oil, thereby increasing the temperature of the insulating oil in the oil tank 1, resulting in a decrease in air pressure and an increase in oil level in the oil tank 1. When the oil level in the oil tank 1 rises and triggers the siphon effect of the second oil delivery pipe 13, the hot oil on the surface of the oil tank 1 flows into the oil suction chamber 12 through the second one-way valve 14 and the second oil delivery pipe 13.

[0050] At the same time, the air pressure in the oil tank 1 decreases, and the oil flowing into the oil suction chamber 12 pushes the regulating plate 4 to slide upward, thereby causing the low-temperature insulating oil in the storage chamber 9 to flow into the oil tank 1, thereby reducing the temperature of the insulating oil in the oil tank 1 and ensuring the normal operation of the transformer body.

[0051] The leak-proof sleeve 7 is used to ensure that the oil in the storage cavity 9 or the oil suction cavity 12 does not leak when the adjusting plate 4 slides. At the same time, the folding indentations 8 on the surface of the leak-proof sleeve 7 can effectively improve the service life of the leak-proof sleeve 7. Example

[0052] A transformer, reference Figure 4 , Figure 5 The difference between this embodiment and embodiment 1 is that the cooling box 2 is equipped with a drive assembly, a power supply assembly, a filter assembly, and a heat dissipation assembly. The drive assembly is used to drive the adjustment plate 4 to slide within the cooling box 2. The power supply assembly provides electrical energy to the drive assembly. The filter assembly is used to purify and reuse the replaced insulating oil. The heat dissipation assembly is used to cool the replaced insulating oil.

[0053] Reference Figure 5 The power supply components include solar panels 15 and batteries 16. The solar panels 15 are installed outdoors and connected to the batteries 16 via wires, thereby converting solar energy into electrical energy and storing it.

[0054] Reference Figure 4 , Figure 5 , Figure 6 The heat dissipation assembly includes a fan 17 fixedly connected to the side wall of the cooling box 2, with a gap between the fan 17 and the adjusting plate 4 to prevent friction between the adjusting plate 4 and the fan 17 during sliding. The fan 17 is connected to a battery 16 via wires to provide power. Additionally, a first temperature sensor 18 is fixedly connected to the surface of each of the two leak-proof sleeves 7 on the adjusting plate 4. The first temperature sensor 18 is electrically connected to the fan 17. When the temperature detected by the first temperature sensor 18 is higher than 25°C, the first temperature sensor 18 sends an electrical signal to the fan 17, enabling the fan 17 to continuously cool the surfaces of the two leak-proof sleeves 7.

[0055] Reference Figure 7 , Figure 8 The regulating plate 4 is fixedly connected to a third one-way valve 19. Oil in the oil suction chamber 12 can flow into the storage chamber 9 through the third one-way valve 19, while liquid in the storage chamber 9 cannot flow into the oil suction chamber 12. Additionally, the filter assembly includes a first filter cover 20, which covers the inlet of the third one-way valve 19 and is coaxially arranged with it. The first filter cover 20 can block larger impurities in the replaced insulating oil. Furthermore, a second filter cover 21 is provided inside the first filter cover 20, covering the inlet of the third one-way valve 19 to block smaller impurities in the insulating oil.

[0056] Reference Figure 7 , Figure 9The adjusting plate 4 has a drive groove 22. A connecting groove for connecting the drive groove 22 and the oil suction chamber 12 is formed on the side of the drive groove 22 near the oil suction chamber 6. Simultaneously, an annular sealing groove 23 is formed on the surface of the adjusting plate 4 on the same side as the connecting groove. A rotating bearing 24 is rotatably connected within the annular drive groove 22, and the rotating bearing 24 is coaxially arranged with the third one-way valve 19. A sealing plate 25 is fixedly connected to the side of the rotating bearing 24 near the oil suction chamber 6 via a connecting block. A sealing ring 26 is fixedly connected to the sealing plate 25, extending into the sealing groove 23 and abutting against the inner wall of the sealing groove 23. The first filter cover 20 and the second filter cover 21 are fixedly connected to the surface of the sealing plate 25.

[0057] Reference Figure 4 , Figure 8 , Figure 9 A rotating motor 27, which is electrically connected to the battery 16, is fixedly connected to the inner side wall of the cooling box 2. A power groove 28, which is connected to the drive groove 22, is opened in the adjusting plate 4. The rotating motor 27 is connected to the surface of the rotating bearing 24 through the power groove 28 via a belt. This allows the rotating motor 27 to control the rotation of the first filter cover 20 and the second filter cover 21 through the rotating bearing 24 and the sealing plate 25, and to avoid oil circuit blockage by rotating the first filter cover 20 and the second filter cover 21.

[0058] Reference Figure 6 , Figure 7 The drive assembly includes four first cylinders 29 fixedly connected to the upper surface of the cooling box 2, with the first cylinders 29 positioned near the top corner of the cooling box 2. The piston rod of the first cylinder 29 extends through the upper surface of the cooling box 2 into the storage chamber 5 and is fixedly connected to the upper surface of the adjusting plate 4. In addition, a first buffer spring 31 is axially sleeved on a portion of the piston rod of the first cylinder 29 within the storage chamber 5, and both ends of the first buffer spring 31 abut against the adjusting plate 4 and the inner wall of the top surface of the cooling box 2, respectively.

[0059] Four second cylinders 30, corresponding to the positions of the first cylinder 29, are fixedly connected to the lower end face of the cooling box 2. The first cylinder 29 and the second cylinder 30 are coaxially arranged. The piston rod of the second cylinder 30 extends through the lower end face of the cooling box 2 into the oil suction chamber 6 and is fixedly connected to the lower end face of the adjusting plate 4. In addition, a second buffer spring 32 is axially sleeved on the piston rod of the second cylinder 30 in the oil suction chamber 6, and the two ends of the second buffer spring 32 abut against the adjusting plate 4 and the inner wall of the bottom surface of the cooling box 2, respectively.

[0060] Reference Figure 4 , Figure 6 , Figure 7The cylinder body of the first cylinder 29 is connected to the cylinder body of the second cylinder 30 on the same axis via a pipe, and a bidirectional screw output pump 33 is fixedly connected to the pipe and electrically connected to the battery 16. The bidirectional screw output pump 33 can change the flow direction of the fluid within it by adjusting the rotation direction of its internal screw. This allows gas from the first cylinder 29 to be pumped into the second cylinder 30, or vice versa. During this process, the piston rod of the cylinder supplying air slides towards the adjusting plate 4 due to increased cylinder pressure, while the piston rod of the cylinder delivering air slides away from the adjusting plate 4 due to decreased cylinder pressure. This movement of the piston rods of both cylinders controls the upward and downward movement of the adjusting plate 4.

[0061] A second temperature sensor 34 is fixedly connected to the oil tank 1. The second temperature sensor 34 is electrically connected to the battery 16 and the bidirectional screw output pump 33. The second temperature sensor 34 is used to detect the temperature of the insulating oil in the upper part of the oil tank 1. When the second temperature sensor 34 detects that the temperature of the upper insulating oil is ≥80°C, the second temperature sensor 34 transmits an electrical signal to the bidirectional screw output pump 33, causing it to deliver the gas in the first cylinder 29 to the second cylinder 30. This causes the adjusting plate 4 to slide upward, and the insulating oil in the upper part of the oil tank 1 enters the suction chamber 12 along the second oil delivery pipe 13. The insulating oil in the storage chamber 9 enters the oil tank 1 along the first oil delivery pipe 10, thereby reducing the temperature of the insulating oil in the oil tank 1.

[0062] Reference Figure 4 , Figure 8 , Figure 9 A liquid level detector 35 is fixedly connected to the top inner wall of the storage chamber 9 within the cooling tank 2. The liquid level detector 35 is electrically connected to the battery 16, the rotary motor 27, and the bidirectional screw output pump 33. The liquid level detector 35 is used to detect the oil level in the storage chamber 9. When the adjusting plate 4 slides to abut against the side of the slide rail 3 closest to the top of the cooling tank 2, the liquid level detector 35 is triggered and transmits an electrical signal to the bidirectional screw output pump 33, causing it to deliver the gas in the second cylinder 30 to the first cylinder 29. This causes the adjusting plate 4 to slide downwards, and the oil in the oil suction chamber 12, under the pressure of the adjusting plate 4, flows downwards through the first filter cover 20 and the second filter cover 21, and then flows into the storage chamber 9 through the third one-way valve 19. During this process, the liquid level detector 35 simultaneously sends an electrical signal to the rotary motor 27 to rotate the first filter cover 20 and the second filter cover 21, thereby preventing blockage of the oil passage.

[0063] The implementation principle of Embodiment 2 of this application is as follows: When the transformer body is running, it generates heat, and the temperature of the insulating oil in the oil tank 1 rises. The second temperature sensor 34 at the top of the oil tank 1 monitors the oil temperature in real time. When the detected temperature is ≥80℃, it sends a signal to the bidirectional screw output pump 33. The bidirectional screw output pump 33 starts (powered by the solar panel 15 through the battery 16), pumping the gas in the first cylinder 29 into the second cylinder 30, causing the piston rod of the first cylinder 29 to retract and the piston rod of the second cylinder 30 to extend, driving the adjusting plate 4 to slide upward.

[0064] At this time, the hot oil in the upper part of the oil tank 1 is drawn into the oil suction chamber 6 through the second one-way valve 14 and the second oil supply pipe 13 (siphon pipe). At the same time, the insulating oil cooled in the storage chamber 5 is injected into the lower part of the oil tank 1 through the first oil supply pipe 10 (siphon pipe) and the first one-way valve 11 under the action of negative pressure, so as to realize the hot oil replacement and quickly reduce the temperature of the oil tank 1.

[0065] When the adjusting plate 4 moves up to the top of the cooling tank 2 and triggers the liquid level detector 35, the bidirectional screw output pump 33 reverses, pumping the gas from the second cylinder 30 back to the first cylinder 29, driving the adjusting plate 4 to move down. The hot oil in the oil suction chamber 6, under pressure, is filtered through the first filter 20 (intercepting large particles) and the second filter 21 (intercepting small particles), and then flows into the storage chamber 5 through the third one-way valve 19. Simultaneously, the liquid level detector 35 triggers the rotary motor 27 to rotate the filter hoods, preventing impurities from clogging them.

[0066] In addition, the fan 17 is powered by the battery 16. When the first temperature sensor 18 detects that the temperature of the leak-proof sleeve 7 is >25°C, it automatically starts to force-cool the circulating oil. The solar panel 15 continuously charges the battery 16, driving the bidirectional screw output pump 33, the fan 17 and the rotary motor 27, realizing closed-loop control with zero external energy consumption.

[0067] Furthermore, the buffer spring on the piston rod absorbs the impact of the adjusting plate 4 during sliding, reducing vibration. The leak-proof sleeve 7 ensures the sealing of the storage chamber 9 / oil suction chamber 12 during sliding, preventing oil leakage.

[0068] By intelligently triggering oil circulation through temperature sensing, combined with solar power supply, multi-stage filtration and air cooling, the insulating oil can be autonomously purified, cooled and reused, significantly improving the transformer's heat dissipation efficiency and the service life of the insulating oil, while achieving zero carbon emission operation.

[0069] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A transformer, comprising an oil tank (1), wherein a transformer body is disposed inside the oil tank (1) and filled with insulating oil, the transformer body being immersed in the insulating oil, characterized in that: It also includes a cooling box (2); An adjusting plate (4) is slidably arranged inside the cooling box (2). The adjusting plate (4) divides the cooling box (2) into a storage chamber (5) and an oil suction chamber (6). The storage chamber (5) is filled with cooled, unused insulating oil. The storage chamber (5) is connected to the lower part of the oil tank (1) through a first oil supply pipe (10), and a first one-way valve (11) is provided on the first oil supply pipe (10) to prevent oil from flowing into the storage chamber (5); The oil suction chamber (6) is connected to the upper part of the oil tank (1) through the second oil supply pipe (13), and the second oil supply pipe (13) is provided with a second one-way valve (14) to prevent oil from flowing towards the oil tank (1); The cooling box (2) is provided with a drive assembly, which is connected to an adjustment plate (4) to drive it to slide within the cooling box (2); The drive assembly is connected to a battery (16), and the battery (16) is connected to a solar panel (15); The regulating plate (4) is provided with a third one-way valve (19). The oil in the oil suction chamber (6) of the third one-way valve (19) flows towards the storage chamber (5) through the third one-way valve (19). A filter assembly is provided at one end of the third one-way valve (19) in the oil suction chamber (6).

2. A transformer according to claim 1, characterized in that: Leak-proof sleeves (7) are respectively provided in the storage chamber (5) and the oil suction chamber (6). The leak-proof sleeves (7) cooperate with the cooling box (2) and the regulating plate (4) to form an oil storage chamber and an oil suction chamber (12). The first oil supply pipe (10) and the second oil supply pipe (13) are connected to the leak-proof sleeves (7) at the corresponding positions.

3. A transformer according to claim 2, characterized in that: The leak-proof sleeve (7) has integrally formed sidewalls with folding indentations (8).

4. A transformer according to claim 1, characterized in that: The cooling box (2) is equipped with a heat dissipation component for cooling the oil inside itself, and the heat dissipation component is electrically connected to the battery (16).

5. A transformer according to claim 1, characterized in that: The drive assembly includes a first cylinder (29) and a second cylinder (30); The piston rod of the first cylinder (29) extends into the storage chamber (5) and is connected to the adjusting plate (4); The piston rod of the second cylinder (30) extends into the oil suction chamber (6) and is connected to the adjusting plate (4); A buffer spring is fitted on the piston rod of the first cylinder (29) or the second cylinder (30), and the two ends of the buffer spring abut against the adjusting plate (4) and the inner wall of the cooling box (2), respectively.

6. A transformer according to claim 5, characterized in that: The cylinder body of the first cylinder (29) is connected to a bidirectional screw output pump (33) via a pipe. The bidirectional screw output pump (33) is connected to the cylinder body of the second cylinder (30) via a pipe. The bidirectional screw output pump (33) is electrically connected to the battery (16).

7. A transformer according to claim 6, characterized in that: The oil tank (1) is equipped with a temperature sensor, which is electrically connected to the bidirectional screw output pump (33) to control the output direction of the bidirectional screw output pump (33).

8. A transformer according to claim 7, characterized in that: A liquid level detector (35) is installed in the storage chamber (5). The liquid level detector (35) is electrically connected to the bidirectional screw output pump (33). After the liquid level detector (35) is triggered, it drives the bidirectional screw output pump (33) to input the gas in the second cylinder (30) into the first cylinder (29).

9. A transformer according to claim 1, characterized in that: The first oil pipeline (10) or the second oil pipeline (13) is a siphon pipeline.

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