Transformer body protection device and transformer assembly thereof

Abstract

The invention discloses a transformer body protection device and a transformer assembly thereof, and relates to the technical field of transformers, the transformer body protection device comprises an oil cooling shell, a transformation winding is arranged in the oil cooling shell, an upper sealing cover is connected to the upper end of the oil cooling shell, and a plurality of insulators are arranged at the upper end of the upper sealing cover; a plurality of insulators are arranged on the upper end of the upper sealing cover, the plurality of insulators are connected with the interior of the transformer winding through tapped lines, an oil conservator is arranged on the left side of the upper end of the upper sealing cover, the lower end of the oil conservator is inserted into the bottom of the oil cooling shell, and the side walls of the four surfaces of the oil cooling shell are communicated with a plurality of cooling fins. Insulation cooling oil in the oil cooling shell absorbs heat of the winding, the water cooling assembly sprays cooling liquid to the outer walls of the cooling fins to strengthen heat dissipation, and the air cooling assembly accelerates heat exchange between the cooling liquid and air. The three parts work cooperatively, the heat dissipation efficiency is remarkably improved, the three parts are driven by the same power source, the structure is compact, and the problem that a traditional transformer is insufficient in heat dissipation or too large in size is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field related to transformers, and in particular relates to a transformer body protection device and a transformer assembly thereof. Background Art

[0002] During operation, traditional transformers generate a large amount of heat due to electromagnetic loss and resistance heating. If the heat is not dissipated in time, the winding temperature will rise, which will affect the insulation performance and service life.

[0003] Currently, common oil-immersed transformers mainly rely on natural convection of insulating oil for heat dissipation, but their heat dissipation efficiency is limited and it is difficult to meet the cooling needs of large-capacity or high-load transformers.

[0004] To address the above problems, this patent proposes a transformer with high integration, good heat dissipation efficiency and compact structure, which can achieve the synergistic effect of oil cooling, water cooling and air cooling in a limited space to ensure the stable operation of the transformer. Summary of the Invention

[0005] The object of the present invention is to provide a transformer body protection device and a transformer assembly thereof, so as to solve the problem in the above background technology that the traditional oil-immersed transformer relies on natural convection of insulating oil for heat dissipation and has low heat dissipation efficiency.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a transformer body protection device and a transformer assembly thereof, comprising an oil-cooled shell, wherein a transformer winding is arranged inside the oil-cooled shell, an upper cover is connected to the upper end of the oil-cooled shell, and a plurality of insulators are arranged on the upper end of the upper cover, multiple fins are connected on the four side walls of the oil-cooled shell, and insulating cooling oil is arranged inside the oil-cooled shell and the multiple fins, and mounting brackets are connected on the front and rear sides of the lower end of the oil-cooled shell, an oil cooling circulation assembly is arranged inside the lower end of the oil cooling shell, and the insulating cooling oil circulates in the oil cooling shell and the inside of the fins through the oil cooling circulation assembly, a water cooling assembly is provided at the lower end of the oil cooling shell, and the outer side of the upper end of the water cooling assembly is located between the multiple fins, an air cooling assembly is provided at the outer side of the lower end of the water cooling assembly, and the outer side of the upper end of the air cooling assembly is located between the multiple fins, a power assembly is provided 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 component includes a partition plate and a first centrifugal fan blade. A partition plate is provided on the lower side of the interior of the oil cooling shell, and the partition plate is connected to the inner wall of the oil cooling shell. The lower end openings of the plurality of heat sinks are all 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 interior of the partition plate. A plurality of first centrifugal fan blades are provided 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 component.

[0008] Preferably, the power assembly includes a drive motor and a motor shaft, a motor base is connected at the center of the upper end between the two mounting brackets, a drive motor is arranged inside the upper end of the motor base, a motor shaft is rotatably connected at the center of the upper end of the drive motor, and the upper end of the motor shaft passes through the interior of the oil cooling shell, and a rubber sealing ring is arranged between the oil cooling shell, and a plurality of the first centrifugal blades are connected to the upper side of the outer side of the motor shaft.

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

[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, and a gap is left between the pump shell and the liquid cooling bottom sealing plate. A suction hole is opened at the center of the lower end of the pump shell, and the motor shaft passes through the inner center of the pump shell and the suction hole, and a rubber sealing ring is arranged between the pump shell and the pump shell. A plurality of second centrifugal blades are rotatably connected to the inside of the pump shell, and the plurality of second centrifugal blades are connected to the middle of the outside of the motor shaft.

[0011] Preferably, the front and rear ends and the left and right ends of the pump housing are connected to liquid distribution boxes, and the four liquid distribution boxes are respectively located on the lower sides of the 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 the multiple heat sinks, and the upper sides of the outer walls of the multiple liquid pipes are provided with multiple liquid spray holes, the upper ends of the four liquid-cooling side sealing plates are clamped with filter plates, and the four filter plates are located on the upper ends of the multiple heat sinks.

[0012] Preferably, the air cooling assembly includes a turbofan box, an air guide distribution box and an air injection pipe, the lower side of the outer portion of the motor shaft is connected to a driving helical gear, the front and rear sides and the left and right sides of the lower end of the liquid-cooled bottom cover plate are fixedly connected to the turbofan box by studs and nuts, and the four turbofan boxes are respectively located on the front and rear sides and the left and right sides of the driving helical gear, the four turbofan boxes are connected to a limiting frame inside one end close to the driving helical gear, and a filter is provided inside the four limiting frames.

[0013] Preferably, the four limit frames are rotatably connected to turbofan shafts at the inner centers thereof, and the four turbofan shafts extend to the insides of four turbofan boxes respectively at one end away from the driving bevel gear, and the four turbofan shafts are connected to the passive bevel gears at one end close to the driving bevel gear, and the four passive bevel gears are respectively located at the front and rear ends and the left and right ends of the driving bevel gear, and mesh with the driving bevel gear, and the outsides of the four turbofan shafts are connected to a plurality of turbofan blades, and the plurality of turbofan blades are rotatably connected to the insides of the four turbofan boxes respectively.

[0014] Preferably, the four turbofan boxes are connected to an air guide distribution box at one end away from the active bevel gear, and the upper ends of the four air guide distribution boxes are connected to a plurality of injection pipes, the upper ends of the plurality of injection pipes pass through 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, the upper ends of the plurality of injection pipes are each provided with a sealing ring, and the outer ends of the upper ends of the plurality of injection pipes are each sleeved with an injection head, and the upper ends of the plurality of injection heads are conically arranged, and the lower sides are cylindrically arranged.

[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 inside of 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 inside of the sealing ring and extends to the inside of 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, and a sealing spring is arranged between the spring frame and the sealing ring.

[0016] Compared with the prior art, the present invention provides a transformer body protection device and a transformer assembly thereof, which have the following beneficial effects:

[0017] This invention innovatively integrates three cooling methods: oil, water, and air. The insulating cooling oil within the oil-cooling shell absorbs the winding heat, the water-cooling assembly sprays coolant onto the outer surface of the heat sink to enhance heat dissipation, and the air-cooling assembly accelerates heat exchange between the coolant and the air. These three elements work together to significantly improve heat dissipation efficiency. They share a common power source and a compact structure, resolving the issues of insufficient heat dissipation and excessive bulk associated with traditional transformers.

[0018] 2. This invention uses a single drive motor, via the motor shaft, to synchronously control the first centrifugal blades of the oil cooling circuit assembly, the second centrifugal blades of the water cooling assembly, and the helical gear transmission system of the air cooling assembly, achieving coordinated operation of the three cooling systems. This simplifies the transmission structure, reduces energy consumption and maintenance costs, and ensures consistent operation of the cooling components.

[0019] 3. The air-cooling assembly's jet pipe is equipped with a spring-loaded plug and a conical jet nozzle at the top. Airflow automatically pushes the plug open, creating a high-speed jet. When airflow stops, the spring returns to the original position, effectively preventing coolant backflow, while simultaneously accelerating airflow and preventing leaks, improving cooling efficiency and protecting the assembly.

[0020] 4. The water-cooling assembly of this invention forms a closed cavity with a liquid-cooled bottom and side sealing plates. The bottom pump housing drives the coolant through the liquid guide pipe and evenly sprays it onto the heat sink. The upper filter plate intercepts impurities and prevents coolant overflow. This not only facilitates maintenance but also ensures the long-term stable operation of the transformer.

[0021] 5. The partition plate of the present invention and the lower cavity of the oil cooling shell 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, thereby enhancing the flow speed of the cold air oil and improving the heat exchange efficiency. Compared with natural convection oil cooling, the heat dissipation performance is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0027] Figure 6 It is a schematic structural diagram of the water cooling component of the present invention.

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

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

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

[0031] In the figure: 1. oil cooling shell; 2. transformer winding; 3. upper cover; 4. insulator; 5. oil pillow; 6. heat sink; 7. mounting bracket; 8. partition plate; 9. oil suction hole; 10. liquid cooling bottom cover plate; 11. motor base; 12. drive motor; 13. motor shaft; 14. first centrifugal fan blade; 15. pump housing; 16. suction hole; 17. second centrifugal fan blade; 18. liquid guide distribution box; 19. liquid guide pipe; 20. liquid spray hole; 21. liquid cooling side cover plate; 22. filter plate; 23. driving bevel gear; 24. turbofan box; 25. limit frame; 26. turbofan shaft; 27. driven bevel gear; 28. turbofan blade; 29. ​​air guide distribution box; 30. jet pipe; 31. jet head; 32. connecting frame; 33. connecting rod; 34. spring frame; 35. blocking spring; 36. blocking ring. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] The present invention provides Figures 1-9The transformer body protection device and transformer assembly shown in the figure include an oil cooling shell 1, a transformer winding 2 is arranged inside the oil cooling shell 1, an upper cover 3 is connected to the upper end of the oil cooling shell 1, a plurality of insulators 4 are arranged on the upper end of the upper cover 3, an oil pillow 5 is arranged on the left side of the upper end of the upper cover 3, which is used to balance the liquid level change of the cooling oil in the oil cooling shell 1 caused by the temperature, a plurality of heat sinks 6 are connected to the four side walls of the oil cooling shell 1, and insulating cooling oil is arranged inside the oil cooling shell 1 and the plurality of heat sinks 6, and the front and rear sides of the lower end of the oil cooling shell 1 are The mounting bracket 7 is connected. An oil cooling circulation component is provided inside the lower end of the oil cooling shell 1, and the insulating cooling oil circulates in the oil cooling shell 1 and the heat sink 6 through the oil cooling circulation component. A water cooling component is provided at the lower end of the oil cooling shell 1, and the outer side of the upper end of the water cooling component is located between a plurality of heat sinks 6. An air cooling component is provided at the outer side of the lower end of the water cooling component, and the outer side of the upper end of the air cooling component is located between a plurality of heat sinks 6. A power component is provided at the center of the lower end of the water cooling component, and the oil cooling circulation component, the water cooling component and the air cooling component are all connected by the power component. The transformer is driven by a force component, and the transformer converts the voltage of the alternating current through the transformer winding 2. The transformer winding 2 is connected to the external circuit through multiple insulators 4, and is installed and fixed by a mounting bracket 7. The transformer can absorb the high temperature generated by the transformer winding 2 during operation through the cooling oil arranged inside the oil-cooled shell 1, reduce the temperature of the transformer winding 2, and prevent the high temperature from damaging the transformer, thereby protecting the transformer body. The cooling oil can dissipate heat through multiple heat sinks 6, and can circulate in the oil-cooled shell 1 and the multiple heat sinks 6 through the drive of the oil-cooled circulation component, thereby improving the cooling efficiency. At the same time, the transformer can water-cool and air-cool the outside of the multiple heat sinks 6 through the water-cooled component and the air-cooled component, thereby accelerating the heat dissipation efficiency of the multiple heat sinks 6, so that the transformer can be oil-cooled, water-cooled and air-cooled at the same time, further improving the cooling efficiency. Moreover, the oil cooling, water cooling and air cooling can be driven by the same driving component, which can not only make the structure of the transformer more concise, but also make the transformer smaller.

[0034] like Figure 3-Figure 5As shown, the oil cooling circulation component includes a partition plate 8 and a first centrifugal fan blade 14. A partition plate 8 is provided on the lower side of the interior of the oil cooling shell 1, and the partition plate 8 is connected to the inner wall of the oil cooling shell 1. The lower end openings of multiple heat sinks 6 are located between the partition plate 8 and the inner wall of the lower end of the oil cooling shell 1. An oil suction hole 9 is opened at the center of the interior of the partition plate 8. A plurality of first centrifugal fan blades 14 are provided at the lower end of the partition plate 8, and the plurality of first centrifugal fan blades 14 are rotatably connected between the partition plate 8 and the inner wall of the lower end of the oil cooling shell 1 through a power component. In the process of driving the cooling oil to circulate, the partition plate 8 separates the lower side of the oil cooling shell 1 and forms a first suction chamber with the lower side of the oil cooling shell 1. The suction chamber can be connected to multiple The first centrifugal fan blades 14 form a first centrifugal pump. When the multiple first centrifugal fan blades 14 rotate inside the suction chamber under the drive of the driving assembly, the first centrifugal pump can suck the cooling oil inside the oil-cooled shell 1 through the oil suction hole 9, and introduce it into the multiple heat sinks 6 through the lower end openings of the multiple heat sinks 6, and finally flow back to the oil-cooled shell 1 through the upper end 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, so that the cooling oil can quickly absorb the heat generated by the transformer winding 2 through the circulation flow, and dissipate the absorbed heat through the outer walls of the multiple heat sinks 6, thereby cooling the transformer and protecting the transformer.

[0035] like Figure 3 and Figure 6The water cooling assembly includes a pump casing 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 to the liquid cooling bottom sealing plate 10, and the motor shaft 13 passes through the center of the liquid cooling bottom sealing plate 10, and a rubber sealing ring is provided between the liquid cooling bottom sealing plate 10 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 to four liquid cooling side sealing plates 21, and the four liquid cooling side sealing plates 21 are respectively connected to the four sides of the oil cooling shell 1 and wrapped around the outside of the multiple heat sinks 6. Cooling liquid is provided on the lower side between the liquid cooling bottom sealing plate 10 and the four liquid cooling side sealing plates 21 and the oil cooling shell 1. The lower end of the oil cooling shell 1 is connected to the pump casing 15, and the pump The shell 15 is located between the oil cooling shell 1 and the liquid cooling bottom sealing plate 10, and a gap is left between the liquid cooling bottom sealing plate 10. A suction hole 16 is opened at the center of the lower end of the pump shell 15, and the motor shaft 13 passes through the inner center of the pump shell 15 and the suction hole 16, and a rubber sealing ring is provided between the pump shell 15. A plurality of second centrifugal blades 17 are rotatably connected inside the pump shell 15. The front and rear ends and the left and right ends of the pump shell 15 are connected to a liquid distribution box 18, and the four liquid distribution boxes 18 are respectively located on the lower side of the plurality of heat sinks 6. The upper ends of the four liquid distribution boxes 18 are connected to a plurality of liquid pipes 19, and the plurality of liquid pipes 19 are located on the plurality of heat sinks 6. A plurality of liquid spray holes 20 are provided on the upper side of the outer walls of the plurality of liquid guide tubes 19, and a filter plate 22 is clamped on the upper ends of the four liquid-cooled side sealing plates 21, and the four filter plates 22 are located on the upper ends of the plurality of heat sinks 6. In the process of water-cooling the outer walls of the plurality of heat sinks 6, a liquid-cooled cavity with an opening upward is formed between the liquid-cooled bottom sealing plate 10 and the four liquid-cooled side sealing plates 21 and the oil-cooled shell 1, and the coolant is located at the bottom of the liquid-cooled cavity. The pump housing 15 can form a second centrifugal pump through the plurality of second centrifugal blades 17. When the plurality of second centrifugal blades 17 drive the rotation inside the pump housing 15 under the drive of the driving assembly, the second centrifugal pump can pass through the suction hole 16 and The gap between the pump housing 15 and the liquid-cooled bottom sealing plate 10 sucks the coolant at the bottom of the liquid-cooling cavity and introduces it into the four liquid guide distribution boxes 18, and then introduces it 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 walls of the multiple liquid guide pipes 19 and sprayed onto the outer walls of the multiple heat sinks 6. The coolant flows from top to bottom on the outer walls of the multiple heat sinks 6 and absorbs heat on the outer walls of the heat sinks 6, thereby accelerating the cooling efficiency of the heat sink 6 and improving the cooling efficiency of the transformer. The coolant can flow back to the bottom of the liquid-cooling cavity for circulation under the obstruction of the outer walls of the heat sink 6 and the inner walls of the liquid-cooled side sealing plate 21.

[0036] Optionally, the first centrifugal blades 14 and the second centrifugal blades 17 may be arc-shaped blades (not shown in the figure) correspondingly. The arc-shaped blades can be the centrifugal arc-shaped blades of the prior art, so they will not be described in detail in this technical document.

[0037] like Figure 7-Figure 9As shown, the power assembly includes a drive motor 12 and a motor shaft 13. A motor base 11 is connected to the center of the upper end between the two mounting brackets 7. The drive motor 12 is arranged inside the upper end of the motor base 11. The motor shaft 13 is rotatably connected to the center of the upper end of the drive motor 12. The upper end of the motor shaft 13 passes through the interior of the oil cooling shell 1 and a rubber sealing ring is arranged between the oil cooling shell 1. A plurality of first centrifugal blades 14 are connected to the upper side of the outside of the motor shaft 13, and a plurality of second centrifugal blades 17 are connected to the outside of the motor shaft 13. In the middle of the part, the air cooling assembly includes a turbofan box 24, an air guide distribution box 29 and an air injection pipe 30. The lower side of the outer side of the motor shaft 13 is connected to the active bevel gear 23. The front and rear sides and the left and right sides of the lower end of the liquid-cooled bottom cover 10 are fixedly connected to the turbofan box 24 by studs and nuts, and the four turbofan boxes 24 are respectively located on the front and rear sides and the left and right sides of the active bevel gear 23. The four turbofan boxes 24 are connected to the limiting frame 25 at one end close to the active bevel gear 23, and the four limiting frames 25 are internally provided with a filter (such as Figure 9As shown), the inner centers of the four limit frames 25 are all rotatably connected to the turbofan shafts 26, and the four turbofan shafts 26 extend to the inside of the four turbofan boxes 24 away from one end of the driving bevel gear 23, and the four turbofan shafts 26 are connected to the passive bevel gears 27 at one end close to the driving bevel gear 23, and the four passive bevel gears 27 are respectively located at the front and rear ends and the left and right ends of the driving bevel gear 23, and mesh with the driving bevel gear 23, and the outside of the four turbofan shafts 26 are connected to a plurality of turbofan blades 28, and the plurality of turbofan blades 28 rotate respectively. The four turbofan boxes 24 are dynamically connected to each other. The four turbofan boxes 24 are connected to the air distribution box 29 at one end away from the active helical gear 23. The upper ends of the four air distribution boxes 29 are connected to multiple jet pipes 30. The upper ends of the multiple jet pipes 30 pass through the interior of the liquid-cooled bottom sealing plate 10 and extend between the multiple heat sinks 6. They are located outside the multiple liquid guide pipes 19. In the process of air cooling the multiple heat sinks 6, the turbofan blades 28 can form a third centrifugal pump with the turbofan box 24. The drive assembly drives the passive helical gear through the active helical gear 23. The wheel 27 rotates, and drives the turbofan shaft 26 and turbofan blades 28 to rotate through the passive bevel gear 27, thereby driving the third centrifugal pump to operate. The third centrifugal pump draws in external air through the opening at one end of the turbofan case 24 near the active bevel gear 23, and filters the inhaled air through the filter screen provided inside the limit frame 25 to ensure that the inhaled air remains clean. The third centrifugal pump guides the inhaled air into the air guide distribution box 29, and then guides it into the multiple injection pipes 30 through the air guide distribution box 29. At this time, the external air can be sprayed into the liquid cooling chamber through the upper ends of the multiple injection pipes 30 and flow upward inside the liquid cooling chamber, blowing the coolant flowing on the outer walls of the multiple heat sinks 6, removing the heat absorbed by the coolant, and then discharged through the opening of the liquid cooling chamber, thereby accelerating the water cooling efficiency and further improving the cooling efficiency of the transformer. In addition, when the heat-absorbing air is discharged from the opening of the liquid cooling chamber, it can be filtered by the filter plate 22, which can prevent the coolant from being carried out by the air and preventing the coolant from being lost, and prevent external dust and debris from entering the liquid cooling chamber.

[0038] Among them, in the process of driving the oil cooling circulation component, the water cooling component and the air cooling component, the driving motor 12 simultaneously drives the multiple first centrifugal blades 14, the multiple second centrifugal blades 17 and the active bevel gear 23 to rotate through the motor shaft 13, so that the multiple first centrifugal blades 14 rotate inside the suction chamber, the multiple second centrifugal blades 17 rotate inside the pump casing 15, and the active bevel gear 23 rotates between the four passive bevel gears 27, thereby driving the oil cooling circulation component, the water cooling component and the air cooling component at the same time, so that the oil cooling circulation component, the water cooling component and the air cooling component share a driving component.

[0039] like Figure 8As shown, a sealing ring 36 is provided inside the upper end of each of the plurality of jet tubes 30, and a jet head 31 is sleeved on the outer end of each of the plurality of jet tubes 30. The upper side of the plurality of 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 tube 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 to the inside of the jet tube 30. A spring frame 34 is connected to the lower end of the connecting rod 33, and the spring frame 34 is located on the lower side of 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 tube 30, the jet tube 30 The internal air pushes the blocking head upward out of the blocking ring 36, allowing the air jet pipe 30 to communicate with the inside of the air jet head 31. Since the cylindrical inner wall of the air jet head 31 is provided with an air jet groove, the air can be ejected downward through the air jet groove provided on the inner wall of the air jet head 31, thereby being sprayed into the liquid cooling chamber, thereby improving the heat dissipation efficiency of the coolant. Among them, the air jet head 31 is located above the liquid level of the coolant. When the air stops being ejected from the upper end of the air jet pipe 30, the spring frame 34 slides downward inside the air jet pipe 30 under the action of the blocking spring 35, and drives the blocking head to be inserted into the inside of the blocking ring 36 through the connecting rod 33, thereby blocking the communication between the air jet pipe 30 and the air jet head 31, preventing the coolant from entering the air jet pipe 30 through the air jet head 31, thereby preventing the coolant from being lost and preventing the coolant from damaging the air cooling component.

[0040] Finally, it should be noted that the above 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 aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A transformer body protection device and a transformer assembly thereof, characterized in that: The invention comprises an oil cooling shell (1), wherein a transformer winding (2) is arranged inside the oil cooling shell (1), an upper cover (3) is connected to the upper end of the oil cooling shell (1), and a plurality of insulators (4) are arranged on the upper end of the upper cover (3), and a plurality of heat sinks (6) are connected to the four side walls of the oil cooling shell (1), and insulating cooling oil is arranged inside the oil cooling shell (1) and the plurality of heat sinks (6), and a mounting bracket (7) is connected to the front and rear sides of the lower end of the oil cooling shell (1), and an oil cooling is arranged inside the lower end of the oil cooling shell (1). A circulation component is provided, and the insulating cooling oil circulates inside the oil cooling shell (1) and the heat sink (6) through the oil cooling circulation component. The lower end of the oil cooling shell (1) is provided with a water cooling component, and the outer side of the upper end of the water cooling component is located between a plurality of heat sinks (6). The outer side of the lower end of the water cooling component is provided with an air cooling component, and the outer side of the upper end of the air cooling component is located between a plurality of heat sinks (6). A power component is provided at the center of the lower end of the water cooling component, and the oil cooling circulation component, the water cooling component and the air cooling component are all driven by the power component.

2. A transformer body protection device and transformer assembly thereof according to claim 1, characterized in that: The oil cooling circulation component includes a partition plate (8) and a first centrifugal fan blade (14). The partition plate (8) is provided on the lower side of the oil cooling shell (1), 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 heat sinks (6) are all 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 interior of the partition plate (8). 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 inner wall of the oil cooling shell (1) through a power component.

3. A transformer body protection device and transformer assembly thereof according to claim 2, characterized in that: The power assembly includes a drive motor (12) and a motor shaft (13); a motor base (11) is connected at the center of the upper end between the two mounting brackets (7); a drive motor (12) is arranged inside the upper end of the motor base (11); a motor shaft (13) is rotatably connected at the center of the upper end of the drive motor (12); the upper end of the motor shaft (13) passes through the interior of the oil cooling shell (1), and a rubber sealing ring is arranged between the motor shaft (13) and the oil cooling shell (1); a plurality of the first centrifugal blades (14) are connected to the upper side of the outer portion of the motor shaft (13).

4. A transformer body protection device and transformer assembly thereof according to claim 3, characterized in that: The 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); the lower end of the oil cooling shell (1) is connected to a liquid cooling bottom sealing plate (10), and the motor shaft (13) passes through the center of the liquid cooling bottom sealing plate (10), and a rubber sealing ring is provided 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 to four liquid cooling side sealing plates (21), and the four liquid cooling side sealing plates (21) are respectively connected to the four side surfaces of the oil cooling shell (1) and wrapped around the outside of multiple heat sinks (6); and coolant is provided on the lower side between the liquid cooling bottom sealing plate (10) and the four liquid cooling side sealing plates (21) and the oil cooling shell (1).

5. A transformer body protection device and transformer assembly thereof according to claim 4, characterized in that: The lower end of the oil cooling shell (1) is connected to 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 a gap is left between the pump shell (15) and the liquid cooling bottom sealing plate (10). A liquid suction hole (16) is opened at the center of the lower end of the pump shell (15), and the motor shaft (13) passes through the inner center of the pump shell (15) and the liquid suction hole (16), and a rubber sealing ring is provided between the motor shaft (13) and the pump shell (15). A plurality of second centrifugal blades (17) are rotatably connected inside the pump shell (15), and the plurality of second centrifugal blades (17) are connected to the middle of the outer side of the motor shaft (13).

6. A transformer body protection device and transformer assembly thereof according to claim 5, characterized in that: The front and rear ends and the left and right ends of the pump housing (15) are connected to a liquid distribution box (18), and the four liquid distribution boxes (18) are respectively located on the lower sides of the multiple heat sinks (6). The upper ends of the four liquid distribution boxes (18) are connected to a plurality of liquid pipes (19), and the plurality of liquid pipes (19) are located between the multiple heat sinks (6). The outer walls of the plurality of liquid pipes (19) are provided with a plurality of liquid spray holes (20) on the upper sides. The upper ends of the four liquid-cooling side sealing plates (21) are clamped with filter plates (22), and the four filter plates (22) are located on the upper ends of the multiple heat sinks (6).

7. A transformer body protection device and transformer assembly thereof according to claim 6, characterized in that: The air cooling assembly comprises a turbofan box (24), an air guide distribution box (29) and an air injection pipe (30); the outer side of the motor shaft (13) is connected to 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 to the turbofan box (24) through studs and nuts, and the four turbofan boxes (24) are respectively located on the front and rear sides and the left and right sides of the driving helical gear (23); the four turbofan boxes (24) are connected to a limiting frame (25) at one end close to the driving helical gear (23), and the four limiting frames (25) are each provided with a filter screen.

8. A transformer body protection device and transformer assembly thereof according to claim 7, characterized in that: The inner centers of the four limiting frames (25) are all rotatably connected to turbofan shafts (26), and the four turbofan shafts (26) extend into the insides of the four turbofan boxes (24) at ends away from the driving helical gear (23). The four turbofan shafts (26) are all connected to passive helical gears (27) at ends close to the driving helical gear (23), and the four passive helical gears (27) are respectively located at the front and rear ends and the left and right ends of the driving helical gear (23) and mesh with the driving helical gear (23). The outsides of the four turbofan shafts (26) are all connected to a plurality of turbofan blades (28), and the plurality of turbofan blades (28) are rotatably connected to the insides of the four turbofan boxes (24).

9. A transformer body protection device and transformer assembly thereof according to claim 8, characterized in that: The four turbofan boxes (24) are connected to an air guide distribution box (29) at one end away from the active bevel gear (23), and the upper ends of the four air guide distribution boxes (29) are connected to a plurality of jet pipes (30). The upper ends of the plurality of jet pipes (30) pass through the interior of the liquid-cooled bottom sealing plate (10) and extend between the plurality of heat sinks (6) and are located outside the plurality of liquid guide pipes (19). The upper ends of the plurality of jet pipes (30) are each provided with a sealing ring (36). The upper ends of the plurality of jet pipes (30) are each sleeved with a jet head (31). The upper sides of the plurality of jet heads (31) are conically arranged, and the lower sides are cylindrically arranged.

10. A transformer body protection device and transformer assembly thereof according to claim 9, characterized in that: The upper side of the cylindrical inner wall of the jet head (31) is connected to a connecting frame (32), and the connecting frame (32) is attached to the upper end of the jet pipe (30). The center of the lower end of the connecting frame (32) is connected to a plugging head, and the plugging head is inserted into the inside of the plugging ring (36). The center of the lower end of the plugging head is connected to a connecting rod (33), and the connecting rod (33) passes through the center of the inside of the plugging ring (36) and extends to the inside of the jet pipe (30). The lower end of the connecting rod (33) is connected to a spring frame (34), and the spring frame (34) is located on the lower side of the plugging ring (36). A plugging spring (35) is provided between the spring frame (34) and the plugging ring (36).

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