A transformer assembly

Abstract

The application discloses a transformer assembly, and relates to the technical field of transformers, which comprises an oil-cooled shell, a variable voltage winding arranged in the oil-cooled shell, an upper cover connected to the upper end of the oil-cooled shell, a plurality of insulators arranged on the upper end of the upper cover, and a tap line for connecting the insulators with the variable voltage winding, an oil pillow arranged on the left side of the upper end of the upper cover and inserted into the bottom of the oil-cooled shell, and a plurality of cooling fins arranged on the four sidewalls of the oil-cooled shell, wherein the oil-cooled shell, the water-cooled assembly and the air-cooled assembly are integrated, the insulating cooling oil in the oil-cooled shell absorbs the heat of the winding, the water-cooled assembly sprays the cooling liquid on the outer wall of the cooling fins to strengthen heat dissipation, and the air-cooled assembly accelerates the heat exchange between the cooling liquid and air. The three components work together to significantly improve the heat dissipation efficiency, and share the same power source, so that the problem of insufficient heat dissipation or oversized volume of the traditional transformer is solved.

Description

Technical Field

[0001] This invention belongs to the field of transformer-related technology, and specifically relates to a transformer assembly. Background Technology

[0002] During operation, traditional transformers generate a lot of heat due to electromagnetic losses and resistance heating. If heat dissipation is not timely, the winding temperature will rise, which will affect the insulation performance and service life.

[0003] Currently, most oil-immersed transformers rely on natural convection of insulating oil for heat dissipation, which has limited heat dissipation efficiency and is difficult to meet the cooling requirements of large-capacity or high-load transformers.

[0004] To address the aforementioned issues, this patent proposes a transformer with high integration, excellent heat dissipation efficiency, and a compact structure, which can achieve the synergistic effect of oil cooling, water cooling, and air cooling within a limited space, ensuring the stable operation of the transformer. Summary of the Invention

[0005] The purpose of this invention is to provide a transformer assembly to solve the problem mentioned in the background art of low heat dissipation efficiency in traditional oil-immersed transformers that rely on natural convection of insulating oil for heat dissipation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a transformer assembly, including an oil-cooled housing, a transformer winding disposed inside the oil-cooled housing, an upper cover connected to the upper end of the oil-cooled housing, a plurality of insulators disposed on the upper end of the upper cover, a plurality of heat sinks connected to the four side walls of the oil-cooled housing, and insulating cooling oil disposed inside the oil-cooled housing and the plurality of heat sinks, mounting brackets connected to the front and rear sides of the lower end of the oil-cooled housing, an oil-cooling circulation assembly disposed inside the lower end of the oil-cooled housing, and the insulating cooling oil circulates within the oil-cooled housing and the heat sinks through the oil-cooling circulation assembly, a water-cooling assembly disposed at the lower end of the oil-cooled housing, and the upper outer side of the water-cooling assembly located between the plurality of heat sinks, an air-cooling assembly disposed at the lower outer side of the water-cooling assembly, and the upper outer side of the air-cooling assembly located between the plurality of heat sinks, and a power assembly disposed at the center of the lower end of the water-cooling assembly, and the oil-cooling circulation assembly, the water-cooling assembly, and the air-cooling assembly are all driven by the power assembly.

[0007] Preferably, the oil cooling circulation assembly includes a partition plate and first centrifugal fan blades. The partition plate is disposed on the lower side of the inside of the oil cooling shell and is connected to the inner wall of the oil cooling shell. The lower openings of the plurality of heat sinks are located between the partition plate and the lower inner wall of the oil cooling shell. An oil suction hole is provided at the center of the partition plate. A plurality of first centrifugal fan blades are disposed between the partition plate and the lower inner wall of the oil cooling shell, and the plurality of first centrifugal fan blades are rotatably connected between the partition plate and the lower inner wall of the oil cooling shell through a power assembly.

[0008] Preferably, the power assembly includes a drive motor and a motor shaft. A motor base is connected at the upper center between the two mounting brackets. The drive motor is installed inside the upper end of the motor base. The motor shaft is rotatably connected at the upper center of the drive motor. The upper end of the motor shaft passes through the inside of the oil cooler and is sealed with a rubber seal between it and the oil cooler. Multiple first centrifugal fan blades are connected to the upper side of the motor shaft.

[0009] Preferably, the water-cooling assembly includes a pump housing, a second centrifugal fan blade, a liquid distribution box, and a liquid guide pipe. The lower end of the oil cooling housing is connected to a liquid-cooled bottom sealing plate, and the motor shaft passes through the center of the liquid-cooled bottom sealing plate and is provided with a rubber sealing ring between the motor shaft and the liquid-cooled bottom sealing plate. The upper outer side of the liquid-cooled bottom sealing plate is connected to four liquid-cooled side sealing plates, and the four liquid-cooled side sealing plates are respectively connected to the four sides of the oil cooling housing and wrapped around the outside of multiple heat sinks. Coolant is provided on the lower side between the liquid-cooled bottom sealing plate and the four liquid-cooled side sealing plates and the oil cooling housing.

[0010] Preferably, the lower end of the oil cooling shell is connected to a pump shell, and the pump shell is located between the oil cooling shell and the liquid cooling bottom sealing plate, with a gap between them. A suction hole is provided at the center of the lower end of the pump shell, and the motor shaft passes through the center of the pump shell and the suction hole, with a rubber sealing ring between them. Multiple second centrifugal fan blades are rotatably connected inside the pump shell, and the multiple second centrifugal fan blades are connected to the middle of the outside of the motor shaft.

[0011] Preferably, the pump housing has liquid distribution boxes connected to the left and right sides of its front and rear ends, and the four liquid distribution boxes are located on the lower side of multiple heat sinks. The upper ends of the four liquid distribution boxes are connected to multiple liquid pipes, and the multiple liquid pipes are located between multiple heat sinks. Multiple spray holes are opened on the upper side of the outer wall of the multiple liquid pipes. Filter plates are snapped onto the upper ends of the four liquid-cooled side sealing plates, and the four filter plates are located on the upper ends of multiple heat sinks.

[0012] Preferably, the air-cooled assembly includes a turbofan box, an air distribution box, and an air jet pipe. A drive helical gear is connected to the lower side of the motor shaft. Turbofan boxes are fixedly connected to the front and rear sides and the left and right sides of the lower end of the liquid-cooled bottom sealing plate by studs and nuts. The four turbofan boxes are located on the front and rear sides and the left and right sides of the drive helical gear, respectively. Each of the four turbofan boxes has a limit frame connected inside the end near the drive helical gear, and each of the four limit frames is equipped with a filter screen.

[0013] Preferably, each of the four limiting frames is rotatably connected to a turbofan shaft at its center, and the ends of the four turbofan shafts away from the driving helical gears extend into the interior of the four turbofan housings. The ends of the four turbofan shafts near the driving helical gears are connected to passive helical gears, and the four passive helical gears are located at the front and rear ends and the left and right ends of the driving helical gears, respectively, and mesh with the driving helical gears. Multiple turbofan blades are connected to the outside of each of the four turbofan shafts, and the multiple turbofan blades are rotatably connected to the interior of the four turbofan housings.

[0014] Preferably, each of the four turbofan boxes is connected to an air distribution box at the end furthest from the driving helical gear. Each of the four air distribution boxes is connected to a plurality of jet pipes at its upper end. The upper ends of the plurality of jet pipes penetrate the interior of the liquid-cooled bottom sealing plate and extend between the plurality of heat sinks, and are located outside the plurality of liquid guide pipes. Each of the plurality of jet pipes has a sealing ring inside its upper end and a jet head sleeved on the outside of its upper end. The upper side of the plurality of jet heads is conical and the lower side is cylindrical.

[0015] Preferably, a connecting frame is connected to the upper side of the cylindrical inner wall of the jet head, and the connecting frame is attached to the upper end of the jet pipe. A sealing head is connected to the center of the lower end of the connecting frame, and the sealing head is inserted into the sealing ring. A connecting rod is connected to the center of the lower end of the sealing head, and the connecting rod passes through the center of the sealing ring and extends into the jet pipe. A spring frame is connected to the lower end of the connecting rod, and the spring frame is located on the lower side of the sealing ring. A sealing spring is provided between the spring frame and the sealing ring.

[0016] Compared with the prior art, the present invention provides a transformer assembly with the following advantages:

[0017] 1. This invention innovatively integrates three cooling methods: oil cooling, water cooling, and air cooling. The oil-cooled housing absorbs heat from the windings through insulating cooling oil; the water-cooling component sprays coolant onto the outer wall of the heat sink to enhance heat dissipation; and the air-cooling component accelerates heat exchange between the coolant and the air. These three components work synergistically to significantly improve heat dissipation efficiency. Furthermore, they share a single power source, resulting in a compact structure and solving the problems of insufficient heat dissipation or excessive size in traditional transformers.

[0018] 2. This invention employs a single drive motor to synchronously control the first centrifugal fan blade of the oil-cooled circulation assembly, the second centrifugal fan blade of the water-cooled assembly, and the helical gear transmission system of the air-cooled assembly via the motor shaft, achieving coordinated operation of the three cooling systems. This simplifies the transmission structure, reduces energy consumption and maintenance costs, while ensuring the consistency of the cooling components' operation.

[0019] 3. The air-cooled assembly of this invention features a spring-loaded sealing head and a conical jet nozzle at the top of the jet pipe. When airflow passes through, the sealing head automatically opens to create a high-speed jet. When airflow stops, the spring returns to its original position and seals the assembly. This effectively prevents coolant backflow, combines airflow acceleration with leak prevention, improves air-cooling efficiency, and protects the air-cooled assembly.

[0020] 4. The water-cooled assembly of this invention forms a closed cavity through a liquid-cooled bottom sealing plate and side sealing plates. The bottom pump casing drives the coolant to be evenly sprayed onto the heat sink through the liquid guide pipe, and the upper filter plate intercepts impurities and prevents coolant overflow. This facilitates maintenance and ensures the long-term stable operation of the transformer.

[0021] 5. The partition plate and the lower cavity of the oil cooling shell of the present invention constitute the centrifugal pump cavity. When the first centrifugal fan blade rotates, the cooling oil is forced to enter the heat sink from the oil suction hole for circulation, which enhances the flow speed of the cold air oil and improves the heat exchange efficiency. Compared with natural convection oil cooling, the heat dissipation performance is significantly improved. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the transformer body protection device of the present invention.

[0023] Figure 2 This is a three-dimensional cross-sectional structural diagram of the transformer body protection device of the present invention.

[0024] Figure 3 This is a schematic diagram of the heat sink connection structure of the present invention.

[0025] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of the oil cooler shell of the present invention.

[0026] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the oil cooler shell of the present invention.

[0027] Figure 6 This is a schematic diagram of the water-cooling component structure of the present invention.

[0028] Figure 7 This is a schematic diagram of the air-cooled component structure of the present invention.

[0029] Figure 8 For the present invention Figure 7 Enlarged diagram of point A in the middle.

[0030] Figure 9 This is a schematic diagram of the turbofan box connection structure of the present invention.

[0031] In the diagram: 1. Oil cooler housing; 2. Transformer winding; 3. Top cover; 4. Insulator; 5. Oil conservator; 6. Heat sink; 7. Mounting bracket; 8. Divider plate; 9. Oil suction hole; 10. Liquid-cooled bottom cover plate; 11. Motor base; 12. Drive motor; 13. Motor shaft; 14. First centrifugal fan blade; 15. Pump housing; 16. Liquid suction hole; 17. Second centrifugal fan blade; 18. Liquid distribution box; 19. Liquid guide pipe; 20. Spray hole; 21. Liquid-cooled side cover plate; 22. Filter plate; 23. Drive helical gear; 24. Turbine fan housing; 25. Limiting bracket; 26. Turbine fan shaft; 27. Driven helical gear; 28. Turbine fan blade; 29. ​​Air distribution box; 30. Jet pipe; 31. Jet head; 32. Connecting bracket; 33. Connecting rod; 34. Spring bracket; 35. Sealing spring; 36. Sealing ring. Detailed Implementation

[0032] 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.

[0033] This invention provides, for example Figures 1-9The transformer assembly shown includes an oil-cooled housing 1, inside which a transformer winding 2 is housed. An upper cover 3 is connected to the upper end of the oil-cooled housing 1, and multiple insulators 4 are mounted on the upper end of the upper cover 3. An oil conservator 5 is located on the upper left side of the upper cover 3 to balance the liquid level changes of the cooling oil inside the oil-cooled housing 1 due to temperature variations. Multiple heat sinks 6 are connected to all four side walls of the oil-cooled housing 1, and insulating cooling oil is installed inside both the oil-cooled housing 1 and the multiple heat sinks 6. Mounting brackets 7 are connected to the front and rear sides of the lower end of the oil-cooled housing 1. An oil cooling circulation assembly is installed inside the lower end of the oil cooling shell 1, and insulating cooling oil circulates within the oil cooling shell 1 and the heat sink 6 through the oil cooling circulation assembly. A water cooling assembly is installed at the lower end of the oil cooling shell 1, and the upper outer side of the water cooling assembly is located between multiple heat sinks 6. An air cooling assembly is installed on the lower outer side of the water cooling assembly, and the upper outer side of the air cooling assembly is located between multiple heat sinks 6. A power assembly is installed at the center of the lower end of the water cooling assembly, and the oil cooling circulation assembly, water cooling assembly, and air cooling assembly are all powered by the power assembly. The transformer converts the voltage of alternating current through the transformer winding 2. Multiple insulators 4 connect the transformer winding 2 to the external circuit. It is mounted and fixed using mounting brackets 7. The transformer can absorb the high temperature generated by the transformer winding 2 during operation through the cooling oil inside the oil-cooled housing 1, reducing the temperature of the transformer winding 2 and preventing damage to the transformer body. The cooling oil dissipates heat through multiple heat sinks 6 and circulates within the oil-cooled housing 1 and the heat sinks 6 through the drive of the oil-cooling circulation assembly, improving cooling efficiency. Simultaneously, the transformer can achieve water cooling and air cooling of the heat sinks 6 through water-cooling and air-cooling components, accelerating the heat dissipation efficiency of the heat sinks 6. This allows the transformer to simultaneously achieve oil cooling, water cooling, and air cooling, further improving cooling efficiency. Furthermore, oil cooling, water cooling, and air cooling can all be driven by the same drive assembly, making the transformer structure simpler and its size smaller.

[0034] like Figures 3-5As shown, the oil cooling circulation assembly includes a partition plate 8 and first centrifugal fan blades 14. The partition plate 8 is located on the lower side of the oil cooling shell 1 and is connected to the inner wall of the oil cooling shell 1. The lower openings of multiple heat sinks 6 are located between the partition plate 8 and the lower inner wall of the oil cooling shell 1. An oil suction hole 9 is provided at the center of the partition plate 8. Multiple first centrifugal fan blades 14 are located at the lower end of the partition plate 8 and are rotatably connected between the partition plate 8 and the lower inner wall of the oil cooling shell 1 via a power assembly. During the circulation of the cooling oil, the partition plate 8 separates the lower interior of the oil cooling shell 1 and forms a first suction chamber with the lower part of the oil cooling shell 1. The suction chamber can interact with multiple... The first centrifugal fan blades 14 form a first centrifugal pump. When the first centrifugal fan blades 14 rotate inside the suction chamber under the drive of the drive assembly, the first centrifugal pump can draw the cooling oil inside the oil-cooled shell 1 through the oil suction hole 9, and guide it into the interior of the multiple heat sinks 6 through the lower openings of the multiple heat sinks 6. Finally, it flows back into the oil-cooled shell 1 through the upper openings of the multiple heat sinks 6, thereby driving the cooling oil to circulate between the oil-cooled shell 1 and the multiple heat sinks 6. This allows the cooling oil to quickly absorb the heat generated by the transformer winding 2 through the circulation flow, and dissipate the absorbed heat through the outer wall of the multiple heat sinks 6, thereby cooling the transformer and protecting it.

[0035] like Figure 3 and Figure 6The water-cooling assembly includes a pump housing 15, a second centrifugal fan blade 17, a liquid distribution box 18, and a liquid guide pipe 19. A liquid-cooled bottom sealing plate 10 is connected to the lower end of the oil-cooled housing 1, and the motor shaft 13 passes through the center of the liquid-cooled bottom sealing plate 10, with a rubber sealing ring between it and the liquid-cooled bottom sealing plate 10. Four liquid-cooled side sealing plates 21 are connected to the outer side of the upper end of the liquid-cooled bottom sealing plate 10, and these four side sealing plates 21 are respectively connected to the four sides of the oil-cooled housing 1 and wrap around the exterior of multiple heat sinks 6. Coolant is provided on the lower side between the liquid-cooled bottom sealing plate 10 and the four liquid-cooled side sealing plates 21 and the oil-cooled housing 1. The pump housing 15 is connected to the lower end of the oil-cooled housing 1, and the pump… The housing 15 is located between the oil-cooled housing 1 and the liquid-cooled bottom sealing plate 10, with a gap between them. A suction hole 16 is provided at the center of the lower end of the pump housing 15, and the motor shaft 13 passes through the center of the pump housing 15 and the suction hole 16, with a rubber sealing ring between them. Multiple second centrifugal fan blades 17 are rotatably connected inside the pump housing 15. Liquid distribution boxes 18 are connected to the left and right ends of the pump housing 15 at both the front and rear ends, and are located below multiple heat sinks 6. Multiple liquid guide pipes 19 are connected to the upper ends of the four liquid distribution boxes 18, and are located on multiple heat sinks 6. Between them, multiple liquid guide pipes 19 have multiple spray holes 20 on the upper side of their outer walls. Each of the four liquid-cooled side sealing plates 21 has a filter plate 22 attached to its upper end, and the four filter plates 22 are located on the upper ends of multiple heat sinks 6. During the water cooling process of the outer walls of the multiple heat sinks 6, the liquid-cooled bottom sealing plate 10 and the four liquid-cooled side sealing plates 21 form an upward-opening liquid-cooled cavity with the oil-cooled shell 1. The coolant is located at the bottom of the liquid-cooled cavity. The pump casing 15 can form a second centrifugal pump through multiple second centrifugal fan blades 17. When the multiple second centrifugal fan blades 17 rotate inside the pump casing 15 under the drive of the drive assembly, the second centrifugal pump can pass through the suction hole 16 and... The gap between the pump casing 15 and the liquid-cooled bottom sealing plate 10 draws in the coolant from the bottom of the liquid-cooled cavity and directs it into the four liquid distribution boxes 18. Then, it is directed into the multiple liquid guide pipes 19. At this time, the coolant can be sprayed out through the multiple spray holes 20 opened on the outer wall of the multiple liquid guide pipes 19 and sprayed onto the outer wall of the multiple heat sinks 6. The coolant flows from top to bottom on the outer wall of the multiple heat sinks 6 and absorbs the heat on the outer wall of the heat sinks 6, thereby accelerating the cooling efficiency of the heat sinks 6 and improving the cooling efficiency of the transformer. The coolant can also flow back to the bottom of the liquid-cooled cavity for circulation under the obstruction of the outer wall of the heat sinks 6 and the inner wall of the liquid-cooled side sealing plate 21.

[0036] Optionally, the first centrifugal fan blade 14 and the second centrifugal fan blade 17 can be selected as arc-shaped fan blades (not shown in the figure). The arc-shaped fan blades can be the existing centrifugal arc-shaped fan blades, so they will not be described in detail in this technical document.

[0037] like Figures 7-9As shown, the power assembly includes a drive motor 12 and a motor shaft 13. A motor base 11 is connected to the upper center of the two mounting brackets 7. The drive motor 12 is installed inside the upper end of the motor base 11. The motor shaft 13 is rotatably connected to the upper center of the drive motor 12, and the upper end of the motor shaft 13 passes through the inside of the oil cooler 1. A rubber sealing ring is provided between the motor shaft 13 and the oil cooler 1. Multiple first centrifugal fan blades 14 are connected to the upper side of the motor shaft 13, and multiple second centrifugal fan blades 17 are connected to the outside of the motor shaft 13. In the middle of the unit, the air-cooled assembly includes a turbofan box 24, an air distribution box 29, and an air jet pipe 30. A drive helical gear 23 is connected to the lower outer side of the motor shaft 13. Turbofan boxes 24 are fixedly connected to the front and rear sides and left and right sides of the lower end of the liquid-cooled bottom sealing plate 10 using studs and nuts. The four turbofan boxes 24 are located on the front and rear sides and left and right sides of the drive helical gear 23, respectively. Each of the four turbofan boxes 24 has a limit frame 25 connected inside the end closest to the drive helical gear 23, and each of the four limit frames 25 has a filter screen (such as...). Figure 9As shown), each of the four limiting frames 25 has a rotatably connected turbofan shaft 26 at its center. The ends of the four turbofan shafts 26 furthest from the driving helical gear 23 extend into the interior of each of the four turbofan housings 24. The ends of the four turbofan shafts 26 closest to the driving helical gear 23 are connected to driven helical gears 27, which are located at the front and rear ends and left and right ends of the driving helical gear 23, respectively, and mesh with it. Multiple turbofan blades 28 are connected to the exterior of each of the four turbofan shafts 26, and these blades rotate... The system is dynamically connected inside four turbine fan housings 24. Each of the four turbine fan housings 24, at the end furthest from the driving helical gear 23, is connected to an air distribution box 29. The upper ends of each of the four air distribution boxes 29 are connected to multiple jet pipes 30. The upper ends of the multiple jet pipes 30 penetrate the interior of the liquid-cooled bottom sealing plate 10 and extend between multiple heat sinks 6, located outside the multiple liquid guide pipes 19. During the air cooling process of the multiple heat sinks 6, the turbine fan blades 28 can form a third centrifugal pump with the turbine fan housings 24. The drive assembly drives the passive helical gear via the driving helical gear 23. The rotating wheel 27 drives the turbine shaft 26 and turbine blades 28 to rotate via the passive helical gear 27, thereby driving the third centrifugal pump. The third centrifugal pump draws in external air through the opening of the turbine housing 24 near the active helical gear 23, and filters the air through the filter screen inside the limit frame 25 to ensure that the air is clean. The third centrifugal pump guides the air into the air distribution box 29, and then into multiple jet pipes 30. At this time, the external air can be sprayed into the liquid cooling cavity through the upper end of the multiple jet pipes 30 and flow upward inside the liquid cooling cavity, blowing the coolant flowing on the outer wall of the multiple heat sinks 6, carrying away the heat absorbed by the coolant, and then discharged through the opening of the liquid cooling cavity, thereby accelerating the water cooling efficiency and improving the cooling efficiency of the transformer. When the air that has absorbed heat is discharged from the opening of the liquid cooling cavity, it can be filtered through the filter plate 22, which can prevent the coolant from being carried out by the air and prevent the coolant from being lost, and also prevent external dust and debris from entering the liquid cooling cavity.

[0038] In the process of driving the oil cooling circulation component, water cooling component, and air cooling component, the drive motor 12 drives multiple first centrifugal fan blades 14, multiple second centrifugal fan blades 17, and the active helical gear 23 to rotate simultaneously through the motor shaft 13. This causes the multiple first centrifugal fan blades 14 to rotate inside the suction chamber, the multiple second centrifugal fan blades 17 to rotate inside the pump housing 15, and the active helical gear 23 to rotate among the four passive helical gears 27. This allows the oil cooling circulation component, water cooling component, and air cooling component to be driven simultaneously, so that the oil cooling circulation component, water cooling component, and air cooling component share a single drive component.

[0039] like Figure 8As shown, a sealing ring 36 is provided inside the upper end of multiple jet pipes 30, and a jet head 31 is sleeved on the outer side of the upper end of multiple jet pipes 30. The upper side of the multiple jet heads 31 is conical, and the lower side is cylindrical. A connecting frame 32 is connected to the upper side of the cylindrical inner wall of the jet head 31, and the connecting frame 32 is attached to the upper end of the jet pipe 30. A sealing head is connected to the center of the lower end of the connecting frame 32, and the sealing head is inserted into the sealing ring 36. A connecting rod 33 is connected to the center of the lower end of the sealing head, and the connecting rod 33 passes through the center of the sealing ring 36 and extends into the interior of the jet pipe 30. A spring frame 34 is connected to the lower end of the connecting rod 33, and the spring frame 34 is located below the sealing ring 36. A sealing spring 35 is provided between the spring frame 34 and the sealing ring 36. When air is ejected through the upper end of the jet pipe 30, the jet pipe 30 The internal air pushes the sealing head out of the sealing ring 36, allowing the jet pipe 30 to connect with the jet head 31. Since the jet head 31 has jet grooves on its cylindrical inner wall, air can be ejected downwards through these grooves and into the liquid cooling chamber, improving the heat dissipation efficiency of the coolant. The jet head 31 is located above the surface of the coolant. When the air stops being ejected from the top of the jet pipe 30, the spring bracket 34 slides downwards inside the jet pipe 30 under the action of the sealing spring 35, and drives the sealing head to be inserted into the sealing ring 36 through the connecting rod 33, blocking the connection between the jet pipe 30 and the jet head 31. This prevents the coolant from entering the jet pipe 30 through the jet head 31, thus preventing coolant loss and damage to the air-cooled components.

[0040] 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 assembly, characterized by The utility model provides an oil cooling shell (1) is provided with variable pressure winding (2) inside, the upper end of oil cooling shell (1) is connected with upper cover (3), the upper end of upper cover (3) is provided with a plurality of insulators (4), the four lateral walls of oil cooling shell (1) are all communicated with a plurality of cooling fins (6), and the inside of oil cooling shell (1) and a plurality of cooling fins (6) are provided with insulating cooling oil, the lower end of oil cooling shell (1) is connected with mounting bracket (7) on both sides, the lower end of oil cooling shell (1) is provided with oil cooling circulation assembly, and insulating cooling oil circulates in the inside of oil cooling shell (1) and cooling fin (6) through oil cooling circulation assembly, the lower end of oil cooling shell (1) is provided with water cooling assembly, and the outside of water cooling assembly upper end is located between a plurality of cooling fins (6), the outside of water cooling assembly lower end is provided with air cooling assembly, and the outside of air cooling assembly upper end is located between a plurality of cooling fins (6), the lower end center of water cooling assembly is provided with power assembly, and oil cooling circulation assembly, water cooling assembly and air cooling assembly are all driven through power assembly. The oil cooling circulation assembly includes a partition plate (8) and a first centrifugal fan blade (14), the inside of the oil cooling shell (1) is provided with a partition plate (8), and the partition plate (8) is connected to the inner wall of the oil cooling shell (1), the lower end openings of the plurality of cooling fins (6) are located between the partition plate (8) and the lower end inner wall of the oil cooling shell (1), the inside of the partition plate (8) is provided with an oil suction hole (9), and the lower end of the partition plate (8) is provided with a plurality of first centrifugal fan blades (14), and the plurality of first centrifugal fan blades (14) are rotatably connected between the partition plate (8) and the lower end inner wall of the oil cooling shell (1) by the power assembly. The power assembly includes a drive motor (12) and a motor shaft (13), the motor base (11) is connected between the two mounting brackets (7) at the upper end center, the drive motor (12) is arranged in the inner portion of the upper end of the motor base (11), the motor shaft (13) is rotatably connected to the upper end center of the drive motor (12), the motor shaft (13) penetrates into the inner portion of the oil cooling shell (1) at the upper end, and a rubber sealing ring is arranged between the motor shaft (13) and the oil cooling shell (1), and the plurality of first centrifugal fan blades (14) are connected to the outer side of the upper end of the motor shaft (13). The water cooling assembly includes a pump shell (15), a second centrifugal fan blade (17), a liquid distribution box (18), and a liquid guide pipe (19), the lower end of the oil cooling shell (1) is connected with a liquid cooling bottom sealing plate (10), the motor shaft (13) penetrates into the inner portion of the liquid cooling bottom sealing plate (10) at the center, and a rubber sealing ring is arranged between the motor shaft (13) and the liquid cooling bottom sealing plate (10), the outer side of the upper end of the liquid cooling bottom sealing plate (10) is connected with four liquid cooling side sealing plates (21), the four liquid cooling side sealing plates (21) are respectively connected to the four sides of the oil cooling shell (1) and wrapped outside the plurality of cooling fins (6), and the lower side of the liquid cooling bottom sealing plate (10) and the four liquid cooling side sealing plates (21) and the oil cooling shell (1) is provided with a cooling liquid.

2. A transformer assembly as claimed in claim 1, wherein The lower end of the oil cooling shell (1) is connected with a pump shell (15), and the pump shell (15) is located between the oil cooling shell (1) and the liquid cooling bottom sealing plate (10) and has a gap with the liquid cooling bottom sealing plate (10), a liquid suction hole (16) is formed in the center of the lower end of the pump shell (15), the motor rotating shaft (13) penetrates the inner center of the pump shell (15) and the liquid suction hole (16), and a rubber sealing ring is arranged between the pump shell (15) and the motor rotating shaft (13), a plurality of second centrifugal fan blades (17) are rotatably connected in the pump shell (15) and are connected to the outer middle part of the motor rotating shaft (13).

3. A transformer assembly as claimed in claim 2, wherein The left and right ends of the inner part of the front and rear ends of the pump shell (15) are communicated with liquid guide distribution boxes (18), and the four liquid guide distribution boxes (18) are located below the plurality of radiating fins (6), a plurality of liquid guide pipes (19) are communicated with the upper ends of the four liquid guide distribution boxes (18), and the plurality of liquid guide pipes (19) are located between the plurality of radiating fins (6), a plurality of liquid injection holes (20) are formed in the upper side of the outer wall of the plurality of liquid guide pipes (19), and filter plates (22) are clamped on the upper ends of the four liquid cooling side sealing plates (21), and the four filter plates (22) are located on the upper ends of the plurality of radiating fins (6).

4. A transformer assembly as claimed in claim 3, wherein The air cooling assembly comprises a turbofan box (24), a gas guide distribution box (29) and a gas injection pipe (30), the lower side of the outer part of the motor rotating shaft (13) is connected with a driving helical gear (23), the front and rear sides and the left and right sides of the lower end of the liquid cooling bottom sealing plate (10) are fixedly connected with the turbofan boxes (24) through studs and nuts, the four turbofan boxes (24) are located on the front and rear sides and the left and right sides of the driving helical gear (23), the inner part of one end of the four turbofan boxes (24) near the driving helical gear (23) is connected with a limiting frame (25), and the inner part of the four limiting frames (25) is provided with a filter screen.

5. A transformer assembly as claimed in claim 4, wherein the transformer assembly is a transformer assembly as claimed in any one of claims 1 to 3. The inner center of the four limiting frames (25) is rotatably connected with a turbofan shaft (26), the other end of the four turbofan shafts (26) away from the driving helical gear (23) extends into the inner part of the four turbofan boxes (24), the one end of the four turbofan shafts (26) near the driving helical gear (23) is connected with a driven helical gear (27), the four driven helical gears (27) are located on the front and rear ends and the left and right ends of the driving helical gear (23) and are engaged with the driving helical gear (23), and the outer part of the four turbofan shafts (26) is connected with a plurality of turbofan blades (28), and the plurality of turbofan blades (28) are rotatably connected in the inner part of the four turbofan boxes (24).

6. A transformer assembly as claimed in claim 5, wherein Four said turbofan box (24) away from the main drive helical gear (23) one end are communicated with gas distribution box (29), four said gas distribution box (29) upper end are communicated with a plurality of air injection pipe (30), a plurality of said air injection pipe (30) upper end penetrates the inside of liquid cooling bottom sealing plate (10), and extends to between a plurality of cooling fins (6), and is located outside a plurality of liquid guide pipe (19), a plurality of said air injection pipe (30) upper end inside are each provided with a blocking ring (36), a plurality of said air injection pipe (30) upper end outside are each sleeved with air injection head (31), a plurality of said air injection head (31) upper side is conical, and the lower side is cylindrical.

7. A transformer assembly as claimed in claim 6, wherein The cylindrical inner wall of the air injection head (31) is connected with a connecting frame (32), and the connecting frame (32) is attached to the upper end of the air injection pipe (30). The lower end of the connecting frame (32) is connected with a blocking head, and the blocking head is inserted into the blocking ring (36). The lower end of the blocking head is connected with a connecting rod (33), and the connecting rod (33) penetrates the inside center of the blocking ring (36) and extends into the air injection pipe (30). The lower end of the connecting rod (33) is connected with a spring frame (34), and the spring frame (34) is located below the blocking ring (36). A blocking spring (35) is arranged between the spring frame (34) and the blocking ring (36).

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