Transformer with protection function

Abstract

This invention relates to the field of transformer protection technology and discloses a transformer with protective functions, including a transformer body. A base is fixedly connected to the bottom of the transformer body, and mounting blocks are fixedly connected to both the front and rear sides of the base. A fixing plate is fixedly connected to the rear side of each mounting block, and a protective component is provided on the top of the fixing plate. An oil-immersing component is provided on the left side of the transformer body, and a cleaning component is provided on the right side. An adjusting component is provided on the outer wall of the oil-immersing component, and two radiators are fixedly installed on the front side of the transformer body. The oil-immersing component and the adjusting component work together to precisely control temperature and save oil. The transformer body is equipped with an oil-immersing component and an adjusting component. The oil conservator delivers insulating oil to the transformer body and high-voltage base via oil supply pipes one and two, enabling precise oil supply for cooling and insulation of areas with excessive local load or overheating.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer protection, and in particular to a transformer with protection function. BACKGROUND

[0002] The transformer is a kind of static electrical equipment, which uses electromagnetic induction principle to raise or lower AC voltage without changing the frequency of AC, and at the same time, to transform current, realize safe, long-distance and efficient power transmission and distribution. Coil short circuit, turn-to-turn breakdown, winding aging and insulation damage are prone to fire and explosion. Internal oil temperature is too high, oil level is abnormal, and oil leakage will directly burn the equipment. Outdoor sun, rain, dust, moisture, acid and alkali corrosion accelerate insulation aging. The transformer carries high voltage, and the shell and wiring terminal are exposed, which is easy to be electrified. The protective structure, protective fence, insulation protection and isolation protection cover are set to prevent personnel from touching and entering the live area by mistake.

[0003] The transformer used in outdoor and transformer substation is exposed to the natural environment for a long time, and many defects are exposed in the actual operation process. First, the traditional transformer relies on fixed oil storage structure for insulation oil supply and cooling heat dissipation. The insulation oil delivery flow cannot be adjusted, and it is impossible to accurately supply oil and cool down the local high load and local temperature rise abnormal area of the transformer. Only the whole oil supply can be provided, which not only causes a large amount of waste of insulation oil, but also easily causes local overheating, accelerated winding insulation aging, turn-to-turn breakdown and even fire and explosion safety hazards. At the same time, the conventional oil way has no flow control structure, and the oil release rate cannot adapt to the heat dissipation and insulation needs of different working conditions of the transformer, and the operation stability is poor.

[0004] Secondly, the outdoor transformer is subjected to sun, rain, wind, sand and dust, acid and alkali corrosion for a long time, and the top high voltage sleeve, low voltage sleeve and wiring terminal are exposed. It is easy to be eroded and damaged by falling objects, rain and wind, and there is a risk of electric shock caused by accidental contact with live components. The existing simple protective fence is of fixed structure and cannot be flexibly opened and closed for storage, so the protection adaptability is poor.

[0005] Thirdly, the transformer is matched with a radiator and a ventilation protection net, which is easily blocked by external dust, willow catkins and dry branches after long-term use, causing poor internal heat dissipation duct and greatly reduced heat dissipation efficiency, resulting in continuous increase of internal oil temperature of the transformer, increased equipment operation load and shortened service life. The traditional cleaning method depends on manual cleaning during shutdown, which is time-consuming and labor-intensive, has high maintenance cost, and also affects the continuous power supply, seriously reducing the overall work efficiency and operation reliability of the transformer.

[0006] In view of the above problems, a transformer with protection function is proposed. SUMMARY

[0007] To overcome the above shortcomings, this invention provides a transformer with protective functions, aiming to improve the problems of existing outdoor transformers, such as the inability to adjust the insulating oil flow, the inability to accurately replenish oil locally and the serious oil consumption, the exposed top being susceptible to environmental damage and accidental contact by personnel, the heat dissipation mesh being prone to blockage, the time-consuming and laborious manual cleaning affecting power supply, and the poor overall operational stability and protection.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a transformer with protective function, comprising a transformer body, a base fixedly connected to the bottom of the transformer body, mounting blocks fixedly connected to both the front and rear sides of the base, a fixing plate fixedly connected to the rear side of the mounting block, a protective component provided on the top of the fixing plate, an oil immersion component provided on the left side of the transformer body, a cleaning component provided on the right side of the transformer body, an adjustment component provided on the outer wall of the oil immersion component, two radiators fixedly installed on the front side of the transformer body, and a release device fixedly connected to the top left front end of the transformer body; The oil-immersed assembly includes a mounting frame, which is fixedly connected to the left side of the transformer body. An oil conservator is fixedly connected to the top of the mounting frame. An oil supply pipe is fixedly connected to the middle of the bottom of the oil conservator. An oil supply pipe is fixedly connected to the right side of the inner wall of the first oil supply pipe. An oil drain valve is fixedly connected to the bottom right side of the inner wall of the transformer body.

[0009] As a further description of the above technical solution: Multiple high-voltage seats are fixedly connected to the top rear side of the transformer body, and high-voltage bushings are fixedly connected to the top of the inner wall of each of the multiple high-voltage seats. Multiple low-voltage seats are fixedly connected to the top front side of the transformer body, and low-voltage bushings are fixedly connected to the top of the inner wall of each of the multiple low-voltage seats. Cover plates are provided on the left and right sides of the top middle of the transformer body.

[0010] As a further description of the above technical solution: The adjustment assembly includes a fixed column, which is fixedly connected to the outer wall of the oil pipeline. A fixed block is fixedly connected to the outer wall of the fixed column. A motor is fixedly connected to the inner wall of the fixed block. A gear is fixedly connected to the output end of the motor. A gear ring is rotatably connected to the inner wall of the fixed column. A gear ring is fixedly connected to the inner wall of the gear ring. Multiple gears are rotatably connected to the inner wall of the fixed column. Adjustment plates are fixedly connected to the inner walls of the multiple gears. Support rods are rotatably connected to adjacent sides of the multiple adjustment plates.

[0011] As a further description of the above technical solution: The protective assembly includes a cylinder, which is fixedly connected to the top of a fixed plate. A connecting seat is installed at the output end of the cylinder. A fixed plate is fixedly installed on the top of the connecting seat. Telescopic rods are installed on both the left and right sides of the inner wall of the fixed plate. Multiple connecting seats are installed on the top of the telescopic rods. Protective plates are installed on the top of the multiple connecting seats. Folding rods are installed on adjacent sides of the multiple protective plates. Electric push rods are installed on the inner walls of the folding rods.

[0012] As a further description of the above technical solution: The cleaning component includes a protective net, which is fixedly connected to the right side of the inner wall of the transformer body. A mounting frame is fixedly connected to the right side of the transformer body. A second motor is fixedly connected to the top center of the inner wall of the mounting frame. A threaded rod is fixedly connected to the output end of the second motor. A scraper is threadedly connected to the outer wall of the threaded rod. Limiting posts are fixedly connected to both the front and rear sides of the scraper.

[0013] As a further description of the above technical solution: The first oil supply pipe is fixedly connected to the middle of the top left side of the inner wall of the transformer body, and the second oil supply pipe is fixedly connected to the inner wall of the transformer body and the inner wall of the high voltage seat respectively.

[0014] As a further description of the above technical solution: The gear is rotatably connected to the inner wall of the fixed column, and the gear and the gear ring are meshed together.

[0015] As a further description of the above technical solution: The second gear ring is rotatably connected to the inner wall of the fixed column, and the multiple second gears are meshed with the second gear ring.

[0016] As a further description of the above technical solution: The two adjacent protective plates can be folded, and the electric push rod is installed on the front side of the inner wall of the fixed plate two. Multiple protective plates can cover the components of the transformer body at the bottom.

[0017] As a further description of the above technical solution: Limiting posts are slidably connected to the front and rear sides of the inner wall of the mounting frame. The left side of the scraper is attached to the outside of the protective net. The dust scraped off by the protective net will be discharged through the bottom hole of the mounting frame.

[0018] The present invention has the following beneficial effects: 1. In this invention, the oil-immersed assembly and the regulating assembly work together to precisely control temperature and save oil. The transformer body is equipped with an oil-immersed assembly and a regulating assembly. The oil conservator delivers insulating oil to the transformer body and high-voltage base through oil delivery pipe one and oil delivery pipe two. It can precisely supply oil to cool and insulate areas of the transformer that are locally overloaded or overheated. At the same time, motor one drives the regulating plate and support rod through gear and ring gear transmission, which can flexibly adjust the cross-sectional area of ​​the oil circuit and precisely control the release and delivery rate of insulating oil. It does not require oil supply to the entire transformer, but only delivers oil to local components that need cooling and insulation, which greatly saves insulating oil consumables. At the same time, it effectively inhibits winding aging and insulation damage, avoids the risk of short circuit, fire and explosion, and improves the operational safety of the transformer.

[0019] 2. In this invention, the protective component is foldable and height-adjustable, providing all-around safety protection. The protective component adopts a structure of cylinders, electric push rods, folding rods, and multiple sets of protective plates, which can realize the lifting and folding of the protective plates. It can provide full coverage protection for the top of the transformer body, high and low voltage bushings, and wiring devices in severe weather conditions such as rain, snow, strong winds, and falling objects from heights, resisting wind and rain erosion and impacts from debris. When idle or under maintenance, it can be folded and stored without occupying extra space, while forming a physical isolation barrier to effectively prevent personnel from accidentally entering live areas or accidentally touching exposed wiring terminals, avoiding electric shock accidents. The flexibility and adaptability of the protection are far superior to traditional fixed fences.

[0020] 3. In this invention, the cleaning component automatically clears blockages, ensuring heat dissipation and improving work efficiency. A cleaning component is installed on the right side of the transformer. The motor drives the threaded rod to move the scraper back and forth along the protective net, which can automatically scrape away dust, willow catkins, dead branches and other blockages attached to the protective net and radiator holes. The scraped-off impurities are automatically discharged through the holes at the bottom of the mounting frame, eliminating the need for manual cleaning and achieving all-weather automatic blockage clearing. This keeps the heat dissipation mesh holes and air ducts unobstructed, greatly improving the transformer's heat dissipation performance, preventing excessively high internal oil temperature, reducing equipment operating load, extending service life, ensuring long-term efficient and stable operation of the transformer, and reducing manual maintenance costs and power loss caused by power outages.

[0021] 4. In this invention, the transformer structure has a high degree of integration and is suitable for various working conditions. It integrates oil-immersed cooling, flow regulation, top protection, and automatic unblocking functions into one unit. With the base, high and low voltage bushings, radiator, and release device, the overall layout is reasonable and the structure is compact. It is suitable for various installation scenarios such as outdoor open-air and substation. It has a high degree of automation and does not require much manual intervention, thus comprehensively improving the transformer's protection capabilities, energy-saving effect, and operational reliability. Attached Figure Description

[0022] Figure 1 This is a perspective view of a transformer with protective functions proposed in this invention; Figure 2This is a schematic diagram of a heat sink structure for a transformer with protective function proposed in this invention; Figure 3 This is a schematic diagram of a fixing plate structure for a transformer with protective function proposed in this invention; Figure 4 This is a schematic diagram of the protective plate structure of a transformer with protective function proposed in this invention; Figure 5 This is a schematic diagram of a folding rod structure for a transformer with protective functions proposed in this invention; Figure 6 This is a schematic diagram of a high-voltage bushing structure for a transformer with protective functions proposed in this invention. Figure 7 This is a schematic diagram of a low-voltage bushing structure for a transformer with protective functions proposed in this invention; Figure 8 This is a schematic cross-sectional view of the regulating plate structure of a transformer with protective function proposed in this invention; Figure 9 This is a schematic diagram of the two-part cross-sectional structure of a transformer with protective function proposed in this invention.

[0023] Legend: 1. Transformer body; 2. Base; 3. Fixing plate 1; 4. Cover plate; 5. Oil-immersed assembly; 501. Oil tank; 502. Mounting bracket; 503. Oil supply pipe one; 504. Oil supply pipe two; 505. Drain valve; 6. Protective components; 601. Cylinder; 602. Connecting seat one; 603. Fixing plate two; 604. Telescopic rod; 605. Protective plate; 606. Electric push rod; 607. Folding rod; 608. Connecting seat two; 7. Release device; 8. Adjustment assembly; 801. Fixed column; 802. Fixed block; 803. Motor 1; 804. Gear 1; 805. Gear ring 1; 806. Gear ring 2; 807. Gear 2; 808. Adjustment plate; 809. Support rod; 9. Cleaning components; 901. Protective net; 902. Mounting frame; 903. Motor II; 904. Threaded rod; 905. Limiting post; 906. Scraper; 10. Mounting block; 11. High-voltage seat; 12. High-voltage bushing; 13. Low-voltage seat; 14. Low-voltage bushing; 15. Radiator. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-9 This invention provides an embodiment of a transformer with protective functions, comprising a transformer body 1, a base 2 fixedly connected to the bottom of the transformer body 1, mounting blocks 10 fixedly connected to both the front and rear sides of the base 2, a fixing plate 3 fixedly connected to the rear side of the mounting blocks 10, a protective component 6 provided on the top of the fixing plate 3, an oil-immersed component 5 provided on the left side of the transformer body 1, a cleaning component 9 provided on the right side of the transformer body 1, an adjusting component 8 provided on the outer wall of the oil-immersed component 5, two radiators 15 fixedly installed on the front side of the transformer body 1, and a release device 7 fixedly connected to the front left side of the top of the transformer body 1. This design is for the transformer body 1 to serve as the core load-bearing structure, with the base 2 rigidly fixed at the bottom of the transformer body 1, and the mounting blocks 10 symmetrically welded to the front and rear of the base 2. The mounting blocks 10 can be used to achieve overall ground installation and bolt fixing of the equipment, adapting to various installation environments such as outdoor substations and open-air platforms. The fixing plate 3 is vertically fixed to the rear side of the mounting blocks 10, providing stable support for the upper protective structure; the protective component 6 is mounted on the top of the fixing plate 3, which can shield and isolate the electrical components on the top of the transformer for protection. The transformer body 1 has an integrated oil-immersed assembly 5 on the left side and a cleaning assembly 9 on the right side. The outer wall of the oil-immersed assembly 5 is equipped with an adjustment assembly 8 to achieve precise control of the insulating oil flow. Two sets of radiators 15 are symmetrically arranged on the front side of the transformer body 1 to enhance heat dissipation during equipment operation. A release device 7 is fixed at the front left of the top, which can automatically release pressure when the internal pressure is abnormal, avoiding the risk of equipment explosion. The overall structure is compact and integrates cooling, protection, unblocking, and pressure relief functions.

[0026] The oil-immersed assembly 5 includes a mounting bracket 502, which is fixedly connected to the left side of the transformer body 1. An oil conservator 501 is fixedly connected to the top of the mounting bracket 502. An oil supply pipe 1 503 is fixedly connected to the bottom middle of the oil conservator 501. An oil supply pipe 2 504 is fixedly connected to the right side of the inner wall of the oil supply pipe 1 503. An oil drain valve 505 is fixedly connected to the bottom right side of the inner wall of the transformer body 1.

[0027] In this embodiment, the oil-immersed assembly 5 uses the mounting frame 502 as a support carrier. The mounting frame 502 is securely locked to the outer left side of the transformer body 1. An oil storage tank 501 is mounted on the top of the mounting frame 502 to store insulating and cooling oil. The bottom center of the oil storage tank 501 is vertically connected to the first oil delivery pipe 503 as the main oil delivery channel. The right side of the inner wall of the first oil delivery pipe 503 is horizontally connected to the second oil delivery pipe 504 to realize the oil circuit diversion and delivery. An oil drain valve 505 is embedded in the bottom right side of the inner wall of the transformer body 1. When the equipment is under maintenance or the oil is changed, the oil drain valve 505 can be opened to drain the internal waste oil. The oil circuit structure is arranged in layers, which can not only provide insulation and cooling for the entire transformer, but also supply oil to local high-load areas through branch pipelines. With the help of the regulating component 8, the oil release rate can be controlled to avoid oil waste caused by supplying oil throughout the entire area, while improving the cooling and insulation effect of local overheated areas.

[0028] Multiple high-voltage seats 11 are fixedly connected to the top rear side of the transformer body 1. High-voltage bushings 12 are fixedly connected to the top of the inner wall of each of the multiple high-voltage seats 11. Multiple low-voltage seats 13 are fixedly connected to the top front side of the top of the transformer body 1. Low-voltage bushings 14 are fixedly connected to the top of the inner wall of each of the multiple low-voltage seats 13. Cover plates 4 are provided on the left and right sides of the top middle of the transformer body 1.

[0029] In this embodiment, multiple sets of high-voltage seats 11 are evenly arranged on the rear top of the transformer body 1. The top of the inner wall of each high-voltage seat 11 is sealed with a high-voltage bushing 12 for high-voltage line access and insulation isolation, ensuring the safety of high-voltage power transmission. Multiple sets of low-voltage seats 13 are correspondingly arranged on the front top of the transformer body 1. The top of the inner wall of the low-voltage seat 13 is equipped with a low-voltage bushing 14 to adapt to the connection of low-voltage power distribution lines. Cover plates 4 are movable on the left and right sides of the middle of the top of the transformer body 1, which can enclose and shield the top line connection area, preventing rainwater and dust from entering the wiring parts. The high and low voltage seats and bushings are arranged in separate sections, with a neat layout. This not only achieves the separation of high and low voltage circuits, but also forms basic protection with the help of the cover plates, reducing the corrosion damage of exposed wiring parts by the natural environment and reducing the risk of electric shock and short circuit.

[0030] The adjusting assembly 8 includes a fixed column 801, which is fixedly connected to the outer wall of the oil pipeline 503. A fixed block 802 is fixedly connected to the outer wall of the fixed column 801. A motor 803 is fixedly connected to the inner wall of the fixed block 802. A gear 804 is fixedly connected to the output end of the motor 803. A gear ring 805 is rotatably connected to the inner wall of the fixed column 801. A gear ring 806 is fixedly connected to the inner wall of the gear ring 805. Multiple gears 807 are rotatably connected to the inner wall of the fixed column 801. Adjusting plates 808 are fixedly connected to the inner walls of the multiple gears 807. Support rods 809 are rotatably connected to adjacent sides of the multiple adjusting plates 808.

[0031] In this embodiment, the fixing column 801 of the adjusting component 8 is tightly fixed to the outer wall of the oil pipeline 503, forming an integrated installation structure. The fixing block 802 is welded to the outer wall of the fixing column 801, and the fixing block 802 is embedded in the fixing motor 803 to provide a power source for flow regulation. The output end of the motor 803 is coaxially fixed to the gear 804. The fixing column 801 is rotatably assembled with the gear ring 805 and the gear ring 806, forming a multi-stage transmission structure. Multiple sets of gears 807 are evenly distributed on the inner ring of the fixing column 801. The adjusting plate 808 is fixed inside each set of gears 807. The adjacent adjusting plates 808 are hinged to the support rod 809. The adjusting plate can be opened and closed by the motor drive, changing the flow cross-sectional area of ​​the oil pipeline, accurately controlling the insulating oil delivery rate, and adapting to the oil supply needs of different transformer load conditions.

[0032] The protective component 6 includes a cylinder 601, which is fixedly connected to the top of the fixed plate 3. A connecting seat 602 is installed at the output end of the cylinder 601. A fixed plate 603 is fixedly installed on the top of the connecting seat 602. Telescopic rods 604 are installed on both the left and right sides of the inner wall of the fixed plate 603. Multiple connecting seats 608 are installed on the top of the telescopic rods 604. A protective plate 605 is installed on the top of the multiple connecting seats 608. A folding rod 607 is installed on the adjacent side of the multiple protective plates 605. An electric push rod 606 is installed on the inner wall of the folding rod 607.

[0033] In this embodiment, the cylinder 601 of the protective component 6 is vertically fixed to the top of the fixed plate 3. The telescopic end of the cylinder 601 is equipped with a connecting seat 602, which can drive the overall upper structure to lift and adjust its height. The top of the connecting seat 602 is equipped with a fixed plate 603. The telescopic rods 604 are slidably assembled on the left and right sides of the inner wall of the fixed plate 603 to achieve vertical telescopic adaptation. Multiple connecting seats 608 are installed on the top of the telescopic rods 604. The connecting seats 608 together support the protective plate 605. The adjacent protective plates 605 are hinged with folding rods 607. The folding rods 607 have built-in electric push rods 606. Through the linkage between the electric push rod and the cylinder, the protective plates can be folded and unfolded and lifted to cover, providing shielding protection in bad weather and folding and storing during maintenance, flexibly adapting to the usage scenario.

[0034] The cleaning component 9 includes a protective net 901, which is fixedly connected to the right side of the inner wall of the transformer body 1. A mounting frame 902 is fixedly connected to the right side of the transformer body 1. A second motor 903 is fixedly connected to the top center of the inner wall of the mounting frame 902. A threaded rod 904 is fixedly connected to the output end of the second motor 903. A scraper 906 is threadedly connected to the outer wall of the threaded rod 904. Limiting posts 905 are fixedly connected to both the front and rear sides of the scraper 906.

[0035] In this embodiment, the protective net 901 of the cleaning component 9 is embedded and fixed on the right side of the inner wall of the transformer body 1, which serves as a dust barrier for the internal ventilation and heat dissipation channels. A mounting frame 902 is fixed to the outer wall of the right side of the transformer body 1. A motor 903 is vertically mounted at the top center of the inner wall of the mounting frame 902. The output end of the motor 903 is vertically connected to a threaded rod 904, forming a screw drive structure. A scraper 906 is threaded onto the outer wall of the threaded rod 904. Limiting posts 905 are horizontally fixed at both ends of the scraper 906. The limiting posts 905 slide against the inner wall of the mounting frame 902, restricting the scraper to rotate only vertically. The motor drives the threaded rod to rotate, which in turn drives the scraper to scrape debris up and down against the protective net, achieving automated unblocking operations.

[0036] Oil supply pipe 503 is fixedly connected to the middle of the top left side of the inner wall of transformer body 1. Oil supply pipe 504 is fixedly connected to the inner wall of transformer body 1 and the inner wall of high voltage seat 11 respectively. This design is to allow oil supply pipe 503 to pass through and be fixed in the middle of the top left side of the inner wall of transformer body 1, serving as the core channel of the main oil circuit, so that insulating oil can be stably transported downward from the oil conservator. Oil supply pipe 504 adopts a branch pipeline design, with one end connected to oil supply pipe 503 and the other end connected to the winding chamber inside transformer body 1 and the inner wall cavity of high voltage seat 11 respectively, realizing bidirectional flow of oil circuit. It can deliver insulating oil separately to the heat-prone parts of high voltage seat and the overloaded areas inside transformer, without the need to supply oil to the entire transformer cavity. It can perform targeted local cooling and insulation reinforcement, which not only improves the stability of equipment operation, but also effectively saves the consumption of insulating oil, and adapts to the working conditions of local overload heating.

[0037] Gear 804 is rotatably connected to the inner wall of the fixed column 801. Gear 804 and gear ring 805 are meshed. This design allows gear 804 to rotate freely within the cavity of the inner wall of the fixed column 801, precisely aligning with the outer teeth of gear ring 805. The two are connected by meshing transmission. When motor 803 is running, it drives gear 804 to rotate, and the meshing of the gear teeth drives gear ring 805 to rotate synchronously. The transmission is smooth and without jamming. The meshing structure of gear 804 and gear ring 805 achieves first-stage power reduction and reversing transmission, which can smoothly transmit the rotational power of the motor to the subsequent gear ring structure. It has high transmission accuracy and strong load-bearing capacity, and can accurately control the opening and closing angle of the subsequent regulating plate, thereby realizing stepless adjustment of oil flow and meeting the oil delivery and control requirements of the transformer under different operating conditions.

[0038] The second gear ring 806 is rotatably connected to the inner wall of the fixed column 801. Multiple gears 807 are meshed with the second gear ring 806. This design allows the second gear ring 806 to rotate coaxially within the fixed column 801, rotating synchronously with the first gear ring 805. Multiple sets of gears 807 are arranged in a ring array within the inner ring of the fixed column 801. All gears 807 mesh with the inner ring teeth of the second gear ring 806. When the second gear ring rotates, it synchronously drives all gears 807 to rotate in the same direction, achieving synchronous power distribution and ensuring that the opening and closing angles of the multiple adjusting plates 808 are completely consistent. This ring meshing transmission structure provides uniform force and good synchronization, preventing misalignment and jamming of individual adjusting plates, precisely and uniformly controlling the oil flow, improving the uniformity and stability of insulating oil flow regulation, and extending the service life of the adjusting components.

[0039] Two adjacent protective plates 605 can be folded. An electric push rod 606 is installed on the front side of the inner wall of the second fixed plate 603. Multiple protective plates 605 can cover the components of the transformer body 1 at the bottom. This design allows two adjacent protective plates 605 to be hinged together by a folding rod 607, enabling them to fold and unfold. The electric push rod 606 is horizontally installed on the front side of the inner wall of the second fixed plate 603, serving as the drive source for the extension and retraction of the folding rod. The extension and retraction of the electric push rod can push and pull the folding rod to bend and deform, thereby controlling the synchronous unfolding or folding of multiple protective plates. When fully unfolded, the protective plates can completely cover the exposed components such as high and low voltage bushings and terminals on the top of the transformer body 1, forming a closed protective barrier. During maintenance, they can be folded and retracted without obstructing the equipment operating space, combining protection and ease of maintenance, and meeting the protection requirements of outdoor windproof, rainproof, and protection against falling objects from heights.

[0040] The inner walls of the mounting frame 902 are slidably connected to limit posts 905 on both the front and rear sides. The left side of the scraper 906 is attached to the outer side of the protective net 901. The dust scraped off by the protective net 901 will be discharged through the bottom hole of the mounting frame 902. This design is to open vertical sliding grooves on the front and rear sides of the inner walls of the mounting frame 902. The limit posts 905 are embedded in the sliding grooves and slidably connected, which guides and limits the scraper 906, preventing the scraper from deflecting as the threaded rod rotates. The left side of the scraper 906 is tightly attached to the outer surface of the protective net 901. During the sliding process, it can scrape off dust, willow catkins, dead branches and other blockages attached to the mesh. The bottom of the mounting frame 902 has hollow holes. The dust and impurities scraped off by the scraper can be automatically discharged from the bottom holes by their own weight. There is no need for manual cleaning and collection. The whole process is automated. It can clear the air duct between the protective net and the radiator in real time, ensure smooth heat dissipation, reduce manual maintenance costs and improve the long-term operating efficiency of the transformer.

[0041] Working Principle: During equipment installation, the transformer body 1 is fixed to the ground by the base 2 at the bottom and the mounting blocks 10 on the front and rear sides. The fixing plate 3 on the rear side of the mounting block 10 provides a stable mounting base for the protective components 6. The transformer body 1 has an oil-immersed component 5 and an adjusting component 8 on the left side, a cleaning component 9 on the right side, two sets of radiators 15 on the front side, and high and low voltage bushings and a release device 7 on the top, forming an integrated structure. During normal operation, the high voltage seat 11 on the top is connected to the high voltage transmission line with the high voltage bushing 12, and the low voltage seat 13 is connected to the low voltage bushing 14 to output low voltage power distribution. The high and low voltage circuits are arranged in separate zones. With the top cover plate 4 shielding the wiring area, rainwater and dust can be prevented from corroding the terminals. At the same time, electrical insulation is achieved to prevent personnel from accidentally touching exposed live parts and causing electric shock accidents, thus improving the safety of power distribution operation from a structural perspective.

[0042] The oil supply and flow regulation for insulating cooling oil: The oil tank 501 of the oil-immersed assembly 5 stores sufficient insulating cooling oil, which is then transported downwards via the bottom oil delivery pipe 503 as the main oil path. The oil is then split via the second oil delivery pipe 504, with one path leading to the winding chamber inside the transformer body 1 and the other to the internal cavity of the high-voltage base 11. This combines overall oil supply with localized targeted oil supply. When the transformer's operating load increases or abnormal temperature rise occurs in a localized area, it is not necessary to supply oil at full load. Instead, precise oil replenishment and cooling are provided to the heated areas via the second oil delivery pipe 504, saving insulating oil consumption. Simultaneously, the regulating assembly 8 controls the oil delivery rate in real time. After starting, gear 803 drives gear 804 to rotate, which in turn drives gear ring 805 and gear ring 806 to rotate synchronously through meshing transmission. Gear ring 806 then drives multiple sets of gear 807 to rotate in the same direction, thereby driving the adjusting plate 808 to cooperate with the support rod 809 to open and close, changing the internal flow cross-sectional area of ​​oil pipe 503, adjusting the oil flow rate as needed, adapting to the cooling and insulation requirements of the transformer under different operating conditions such as light load, heavy load, and overload, effectively suppressing winding aging and insulation damage, avoiding inter-turn short circuits, fire and explosion hazards. When the transformer is under maintenance and the oil is changed, the bottom drain valve 505 can be opened to quickly drain the waste oil, making the operation convenient.

[0043] The top protective assembly provides protection and storage. In normal sunny weather or during equipment maintenance, the protective assembly 6 is in a folded storage state. The cylinder 601 retracts, causing the fixed plate 603 to descend and the telescopic rod 604 to retract. At the same time, the electric push rod 606 retracts, pulling the folding rod 607 to bend. Multiple protective plates 605 fold together, without occupying top space or affecting personnel maintenance operations. When encountering severe environments such as heavy rain, strong winds, sandstorms, or falling objects from heights, the cylinder 601 extends, pushing the fixed plate 603 to rise. The telescopic rod 604 extends vertically to raise the protection height. The electric push rod 606 extends, pushing the folding rod 607 to straighten, causing multiple protective plates 605 to unfold flat, completely covering the high and low voltage bushings, terminals, and other key components on the top of the transformer body 1, forming a fully enclosed physical protective barrier. This not only shields against wind, rain, and sandstorm erosion but also prevents falling objects from damaging the equipment. It also isolates external personnel from accidentally entering the energized area, significantly improving outdoor operation protection capabilities.

[0044] Heat dissipation and automatic unblocking: The heat generated by the transformer during operation is quickly dissipated through the two sets of radiators 15 on the front side. The internal ventilation airflow circulates through the protective net 901 on the right side. After long-term use, the protective net 901 is prone to accumulating dust, willow catkins, dead branches and other debris, which can clog the mesh and obstruct the heat dissipation airflow. At this time, the cleaning component 9 automatically starts. The motor 2 903 drives the threaded rod 904 to rotate in the forward or reverse direction. The screw thread transmission drives the scraper 906 to slide up and down in a straight line. The limit post 905 slides and guides within the slide groove of the mounting frame 902, so that the scraper is always in close contact with the surface of the protective net 901. It repeatedly scrapes away the debris blocking the mesh. The scraped dust and impurities are automatically discharged through the bottom hole of the mounting frame 902 by their own weight. There is no need for manual shutdown and high-definition cleaning, which realizes all-weather automatic unblocking. It always keeps the protective net and radiator airflow unobstructed, steadily improves the heat dissipation efficiency, avoids excessive oil temperature and load increase inside the transformer, extends the service life of the equipment, and reduces the cost of power outage maintenance and manual maintenance.

[0045] In addition, the release device 7 at the front left of the top of the transformer body 1 can play an overpressure protection role. When the pressure inside the equipment rises abnormally due to excessive oil temperature or short circuit fault, the release device 7 automatically releases pressure and exhausts gas to prevent the shell from cracking and explosion. The components of the whole operate independently and are interconnected. It has a high degree of automation and does not require much manual intervention. It has multiple advantages such as energy saving and oil saving, safety protection, automatic unblocking, and pressure stabilization and release. It is suitable for various outdoor power operation and maintenance scenarios and effectively solves many operational defects of traditional transformers.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A transformer with protective function, comprising a transformer body (1), wherein a base (2) is fixedly connected to the bottom of the transformer body (1), and mounting blocks (10) are fixedly connected to both the front and rear sides of the base (2), characterized in that: The mounting block (10) is fixedly connected to a fixing plate (3) on the rear side. A protective component (6) is provided on the top of the fixing plate (3). An oil immersion component (5) is provided on the left side of the transformer body (1). A cleaning component (9) is provided on the right side of the transformer body (1). An adjustment component (8) is provided on the outer wall of the oil immersion component (5). Two radiators (15) are fixedly installed on the front side of the transformer body (1). A release device (7) is fixedly connected to the front left side of the top of the transformer body (1). The oil-immersed assembly (5) includes a mounting bracket (502), which is fixedly connected to the left side of the transformer body (1). An oil conservator (501) is fixedly connected to the top of the mounting bracket (502), and an oil supply pipe (503) is fixedly connected to the middle of the bottom of the oil conservator (501). An oil supply pipe (504) is fixedly connected to the right side of the inner wall of the oil supply pipe (503), and an oil drain valve (505) is fixedly connected to the bottom right side of the inner wall of the transformer body (1).

2. A transformer with protective function according to claim 1, characterized in that: Multiple high-voltage seats (11) are fixedly connected to the rear top of the transformer body (1), and high-voltage bushings (12) are fixedly connected to the top inner wall of each of the multiple high-voltage seats (11). Multiple low-voltage seats (13) are fixedly connected to the front top of the transformer body (1), and low-voltage bushings (14) are fixedly connected to the top inner wall of each of the multiple low-voltage seats (13). Cover plates (4) are provided on the left and right sides of the top middle of the transformer body (1).

3. A transformer with protective function according to claim 1, characterized in that: The adjustment assembly (8) includes a fixed column (801), which is fixedly connected to the outer wall of the first oil pipeline (503). A fixed block (802) is fixedly connected to the outer wall of the fixed column (801). A motor (803) is fixedly connected to the inner wall of the fixed block (802). A gear (804) is fixedly connected to the output end of the first motor (803). A gear ring (805) is rotatably connected to the inner wall of the fixed column (801). A gear ring (806) is fixedly connected to the inner wall of the first gear ring (805). Multiple gears (807) are rotatably connected to the inner wall of the fixed column (801). An adjustment plate (808) is fixedly connected to the inner wall of each of the multiple gears (807). A support rod (809) is rotatably connected to the adjacent side of each of the multiple adjustment plates (808).

4. A transformer with protective function according to claim 1, characterized in that: The protective component (6) includes a cylinder (601), which is fixedly connected to the top of a fixing plate (3). A connecting seat (602) is installed at the output end of the cylinder (601). A fixing plate (603) is fixedly installed on the top of the connecting seat (602). Telescopic rods (604) are installed on both the left and right sides of the inner wall of the fixing plate (603). Multiple connecting seats (608) are installed on the top of the telescopic rods (604). Protective plates (605) are installed on the top of the multiple connecting seats (608). Folding rods (607) are installed on the adjacent sides of the multiple protective plates (605). Electric push rods (606) are installed on the inner wall of the folding rods (607).

5. A transformer with protective function according to claim 1, characterized in that: The cleaning component (9) includes a protective net (901), which is fixedly connected to the right side of the inner wall of the transformer body (1). A mounting frame (902) is fixedly connected to the right side of the transformer body (1). A motor (903) is fixedly connected to the middle of the top of the inner wall of the mounting frame (902). A threaded rod (904) is fixedly connected to the output end of the motor (903). A scraper (906) is threadedly connected to the outer wall of the threaded rod (904). Limiting posts (905) are fixedly connected to both the front and rear sides of the scraper (906).

6. A transformer with protective function according to claim 2, characterized in that: The first oil pipe (503) is fixedly connected to the middle of the top left side of the inner wall of the transformer body (1), and the second oil pipe (504) is fixedly connected to the inner wall of the transformer body (1) and the inner wall of the high voltage seat (11) respectively.

7. A transformer with protective function according to claim 3, characterized in that: The gear one (804) is rotatably connected to the inner wall of the fixed column (801), and the gear one (804) and the gear ring one (805) are meshed.

8. A transformer with protective function according to claim 3, characterized in that: The second gear ring (806) is rotatably connected to the inner wall of the fixed column (801), and the multiple gears (807) are meshed with the second gear ring (806).

9. A transformer with protective function according to claim 4, characterized in that: The two adjacent protective plates (605) can be folded, the electric push rod (606) is installed on the front side of the inner wall of the fixed plate two (603), and the multiple protective plates (605) can cover the components of the transformer body (1) at the bottom.

10. A transformer with protective function according to claim 5, characterized in that: Limiting posts (905) are slidably connected to the front and rear sides of the inner wall of the mounting frame (902). The left side of the scraper (906) is attached to the outside of the protective net (901). The dust scraped off by the protective net (901) will be discharged through the bottom hole of the mounting frame (902).

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