An oil-immersed amorphous three-dimensional wound core transformer optimized heat dissipation system

Abstract

The utility model discloses a kind of oil-immersed amorphous three-dimensional roll core transformer optimization heat dissipation systems, comprising: transformer box, core, three-phase oil baffle, upper core clamp, lower core clamp, tank top shunt cylinder, core column oil baffle, high-voltage winding filling and sealing cylinder and low-voltage winding filling and sealing cylinder;The inside of transformer box is equipped with heat-absorbing rib, and the outside of transformer box is equipped with heat-dissipating rib;Three-phase oil baffle is circumferentially arranged outside high-voltage winding filling and sealing cylinder, and its upper and lower ends are respectively connected with upper oil baffle and lower oil baffle, and are fixed with upper core clamp and lower core clamp by connecting piece.The utility model has the advantages that: by heat-absorbing rib and heat-dissipating rib, the heat dissipation capacity of transformer is improved;Multiple oil baffle structures are designed to reasonably design transformer oil flow path, fully utilize transformer oil to take away heat, so that the temperature rise of core and winding is inhibited.

Description

Technical Field

[0001] This utility model relates to the field of transformer heat dissipation technology, and in particular to an optimized heat dissipation system for an oil-immersed amorphous three-dimensional wound core transformer. Background Technology

[0002] In today's society, electricity supply is like blood, supporting the efficient operation of modern civilization. From the skyscrapers of bustling cities to the quiet corners of remote villages, from large industrial workshops to everyday household appliances, a stable and efficient power supply is the fundamental guarantee for all activities. In the entire power transmission and distribution system, transformers play a crucial role; they are key equipment for achieving voltage conversion and ensuring the rational distribution of electricity.

[0003] Traditional transformers have gradually revealed some limitations during long-term operation. For example, their core materials generate significant hysteresis and eddy current losses during electromagnetic conversion, which not only reduces energy efficiency but also leads to a large amount of wasted electrical energy. Furthermore, traditional structural designs lack flexibility in dealing with complex power grid environments and diverse load demands, making it difficult to achieve precise and efficient power regulation. In addition, the noise generated by traditional transformers during operation also causes some interference to the surrounding environment.

[0004] Oil-immersed amorphous three-dimensional wound transformers are innovative products developed to address the pain points of traditional transformers. They utilize a novel amorphous alloy material as the core, which possesses exceptional soft magnetic properties, significantly reducing hysteresis and eddy current losses and dramatically improving the transformer's energy conversion efficiency. According to relevant data, compared to traditional transformers, oil-immersed amorphous three-dimensional wound transformers can reduce energy consumption by 70%-80% during no-load operation. This significant energy-saving advantage is of paramount importance to the ever-increasing global electricity demand.

[0005] Its unique three-dimensional wound core structure design is also a major highlight. This structure makes the magnetic circuit of the core smoother and the magnetic flux distribution more uniform, which not only improves the transformer's short-circuit withstand capability but also effectively reduces leakage flux, thereby enhancing the stability and reliability of transformer operation. When faced with sudden faults in the power grid or drastic changes in load, the oil-immersed amorphous three-dimensional wound transformer can respond quickly, ensuring the continuity and stability of power supply.

[0006] In terms of environmental protection, oil-immersed amorphous three-dimensional wound transformers also perform exceptionally well. Due to their low-loss characteristics, they reduce greenhouse gas emissions caused by energy waste during power generation. Simultaneously, the noise level generated during operation is significantly reduced, creating a quieter and more comfortable living environment for surrounding residents. Regarding resource utilization, new materials and optimized design result in smaller and lighter transformers, reducing raw material consumption and aligning with the principles of sustainable development.

[0007] Oil-immersed amorphous three-dimensional wound transformers are gradually becoming star products in the power sector due to their numerous advantages, including high efficiency, energy saving, stability, reliability, and environmental friendliness. With continuous technological advancements and increasingly widespread applications, they will play an even more important role in future smart grid construction and energy efficiency, injecting new and powerful momentum into the sustainable development of the global power industry. Therefore, it is essential to propose an optimized heat dissipation system for oil-immersed amorphous three-dimensional wound core transformers. Utility Model Content

[0008] Based on this, it is necessary to provide an optimized heat dissipation system for an oil-immersed amorphous three-dimensional wound core transformer to address the above-mentioned technical problems. This system improves the transformer's heat dissipation capacity through heat-absorbing and heat-dissipating fins. Multiple oil-blocking structures are designed to rationally design the transformer oil flow path, making full use of the transformer oil to carry away heat and thus suppressing the temperature rise of the core and windings.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] An optimized heat dissipation system for an oil-immersed amorphous three-dimensional wound core transformer includes: a transformer housing, a core, three-phase oil baffles, an upper core clamp, a lower core clamp, a top shunt cylinder, a core column oil baffle, a high-voltage winding potting cylinder, and a low-voltage winding potting cylinder.

[0011] The iron core is fixed in the transformer box by an upper iron core clamp and a lower iron core clamp;

[0012] The transformer housing has heat-absorbing ribs on the inner side and heat-dissipating ribs on the outer side.

[0013] The three-phase oil baffle is arranged around the outside of the high-voltage winding potting cylinder, and its upper and lower ends are respectively connected to the upper oil baffle and the lower oil baffle, and are fixed to the upper clamp and the lower clamp of the iron core by the connector;

[0014] The top shunt cylinder is an inverted frustum-shaped cylinder. The bottom of the top shunt cylinder is connected to the core oil baffle cylinder through an annular connecting cylinder, and the top of the top shunt cylinder is connected to the transformer cover through a shunt cylinder fixing clamp.

[0015] The annular connecting cylinder is fixedly connected to the bottom of the top diversion cylinder of the box;

[0016] The lower end of the core oil baffle cylinder is fixed to the lower oil baffle plate, and the upper end of the core oil baffle cylinder is connected to the lower end of the annular connecting cylinder.

[0017] As a further description of the above solution, multiple heat-absorbing ribs and heat-dissipating ribs are provided, each of which is a plate-shaped structure, and a predetermined distance is provided between adjacent heat-absorbing ribs and heat-dissipating ribs; the iron core is an equilateral triangular three-dimensional structure formed by splicing three single-frame iron cores with a central angle of 120°.

[0018] As a further description of the above scheme, an oil flow gap of 8mm-15mm is provided between the three-phase oil baffle and the transformer top cover.

[0019] As a further description of the above solution, the optimized heat dissipation system also includes a lower oil baffle block, which is a long strip structure. The lower oil baffle block is evenly distributed around the bottom of the transformer tank. The bottom surface of the lower oil baffle block is fixedly connected to the bottom of the transformer tank, and the top surface of the lower oil baffle block is fixedly connected to the lower oil baffle plate.

[0020] As a further description of the above solution, the lower oil baffle block is a long strip structure, and multiple trapezoidal cross-section fins are vertically distributed on the base of the lower oil baffle block. The spacing between adjacent fins is 10mm-20mm, and the upper end of each fin is provided with an oblique angle of 7° with the vertical direction.

[0021] As a further description of the above solution, the lower end of the iron core is connected to the base via a lower leg iron, and the bottom surface of the base is provided with an oil inlet.

[0022] As a further description of the above solution, the upper oil baffle is connected and fixed to the heat-absorbing rib by the upper pressure block, and the lower oil baffle is pressed against the bottom surface of the oil tank by the lower oil baffle pad.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Small oil-immersed transformers have certain drawbacks in heat dissipation. Their cooling primarily relies on oil convection and natural heat dissipation from the tank surface. Due to their small size and relatively limited tank surface area, natural heat dissipation is limited. Under high load operation, heat is difficult to dissipate quickly, easily causing the transformer's internal temperature to rise, affecting its performance and service life. Incorporating heat-absorbing fins on the inner wall of the tank and heat-dissipating fins on the outside of the oil-immersed transformer offers several significant advantages. From the perspective of improved heat transfer efficiency, the heat-absorbing fins on the inner wall of the tank increase the contact area with the transformer oil, enabling more efficient absorption of heat generated and transferred to the oil during transformer operation, accelerating the heat conduction process from the transformer's interior to the tank. The external heat-dissipating fins greatly expand the contact area between the tank and the outside air, allowing the heat absorbed from the tank to dissipate more quickly into the surrounding environment, enhancing heat exchange, effectively improving the overall heat dissipation efficiency of the transformer, ensuring operation within the normal operating temperature range, and reducing the risk of failure due to overheating.

[0025] In terms of enhancing structural strength, the presence of heat-absorbing and heat-dissipating ribs increases the mechanical strength and rigidity of the oil tank. Like reinforcing ribs, they improve the tank's ability to resist internal oil pressure and external mechanical stress, making the tank more stable and reliable under various operating conditions, reducing the possibility of deformation, and extending the transformer's service life.

[0026] In oil-immersed transformers, the generation of localized eddy currents can lead to increased energy loss, localized overheating, and reduced transformer oil utilization. Designing a three-phase oil baffle can effectively solve the oil flow eddy problem, with significant results. The three-phase oil baffle can rationally guide the oil flow path. During the operation of an oil-immersed transformer, the flow state of the oil is crucial for heat dissipation and preventing eddy currents. The three-phase oil baffle, through its specific shape and position, guides the oil flow smoothly along a predetermined direction, preventing irregular eddy currents in certain areas and improving the transformer's heat dissipation efficiency.

[0027] During transformer operation, the windings are the primary heat source. If the heat generated cannot be dissipated effectively and promptly, it will adversely affect the transformer's performance and lifespan. The core-post oil baffle plays a crucial role in solving this problem. The core-post oil baffle precisely guides the flow path of the transformer oil, allowing it to flow regularly and sufficiently across the surfaces of the high-voltage winding's potting copper and the low-voltage winding's potting cylinder. Since the heat generated by the windings during operation is directly transferred to their surfaces, and transformer oil has excellent thermal conductivity, a large amount of heat is quickly carried away as the oil flows over these surfaces. This process ensures efficient heat transfer from the windings to the oil, preventing heat accumulation in localized areas of the windings and effectively reducing their temperature. Simultaneously, the core-post oil baffle makes the oil flow distribution around the windings more uniform, ensuring that all parts of the windings receive sufficient cooling, thus improving the overall heat dissipation and thermal stability of the transformer.

[0028] In oil-immersed transformers, oil baffles play a crucial role. As oil flows through the bottom of the transformer, the oil baffles reduce the flow space. According to fluid mechanics principles, with a constant flow rate, a smaller flow channel cross-sectional area leads to an increase in fluid velocity. Therefore, the oil baffles increase the oil velocity as it flows through the bottom. This rapid oil flow allows for more effective heat dissipation from transformer windings and other components, enhancing heat dissipation and enabling the transformer to operate under more stable temperature conditions. This reduces the risk of failures due to heat buildup, improving the transformer's operating efficiency and reliability.

[0029] Designing a top-mounted shunt helps to balance the oil flow velocity. Due to the complex internal structure of transformers, the oil flow velocity may vary at different locations, and this velocity difference can easily induce vortices. The top-mounted shunt can adjust the oil flow, making the oil flow velocity between each phase more even. When the oil flow velocity is uniform, the stability of the oil flow is improved, reducing the possibility of vortices caused by inconsistent velocities. Attached Figure Description

[0030] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the internal structure of the oil-immersed amorphous alloy transformer provided by this utility model;

[0032] Figure 2 The upper end structure diagram of the oil-immersed amorphous alloy transformer provided by this utility model;

[0033] Figure 3 A schematic diagram of the shunt system structure of the oil-immersed amorphous alloy transformer provided by this utility model;

[0034] Figure 4 A schematic diagram of the bottom structure of the oil-immersed amorphous alloy transformer provided by this utility model;

[0035] Figure 5 A schematic diagram of the core fixing structure of the oil-immersed amorphous alloy transformer provided by this utility model;

[0036] Figure 6 A schematic diagram of the oil-blocking structure of the oil-immersed amorphous alloy transformer provided by this utility model;

[0037] Figure 7 A schematic diagram of the assembly structure of the lower oil baffle block provided by this utility model;

[0038] Figure 8 This is a schematic diagram of the oil baffle block part provided by this utility model;

[0039] Figure 9 A schematic diagram of the connection system for the oil-immersed amorphous alloy transformer provided by this utility model;

[0040] Figure 10 This is a schematic diagram of the transformer base assembly provided by this utility model.

[0041] The markings in the diagram are explained as follows:

[0042] 1. Transformer housing; 2. Transformer top cover; 3. Iron core; 4. High-voltage winding potting cylinder; 5. Low-voltage winding potting cylinder; 6. Upper iron core clamp; 7. Lower iron core clamp; 8. Heat-absorbing rib; 9. Heat-dissipating rib; 10. Three-phase oil baffle cylinder; 11. Lower oil baffle pad; 12. Upper oil baffle plate; 13. Lower oil baffle plate; 14. Upper pressure block; 15. Core column oil baffle cylinder; 16. Top shunt cylinder; 17. Shunt cylinder fixing clamp; 18. Annular connecting cylinder; 19. Base; 20. Lower foot iron; 21. Connecting plate; 22. Gasket; 23. Transformer bottom surface; 24. Triangle iron. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention. Figures 1-10As shown, this utility model provides an optimized heat dissipation system for an oil-immersed amorphous three-dimensional wound core transformer, including: a transformer housing 1, a core 3, a three-phase oil baffle 10, an upper core clamp 6, a lower core clamp 7, a top shunt cylinder 16, a core column oil baffle 15, a high-voltage winding potting cylinder 4, and a low-voltage winding potting cylinder 5.

[0044] The iron core 3 is fixed inside the transformer housing 1 by the upper iron core clamp 6 and the lower iron core clamp 7;

[0045] The transformer housing 1 has heat-absorbing ribs 8 on its inner side and heat-dissipating ribs 9 on its outer side; the three-phase oil baffle cylinder 10 is arranged around the outside of the high-voltage winding potting cylinder 4, and its upper and lower ends are respectively connected to the upper oil baffle plate 12 and the lower oil baffle plate 13, and are fixed to the upper iron core clamp 6 and the lower iron core clamp 7 by connecting parts.

[0046] The top shunt cylinder 16 is an inverted frustum-shaped cylinder. The bottom of the top shunt cylinder 16 is connected to the core column oil baffle cylinder 15 through an annular connecting cylinder 18, and the top of the top shunt cylinder 16 is connected to the transformer cover 2 through a shunt cylinder fixing clamp 17. Specifically, the three-phase oil baffle cylinder 10 and the core column oil baffle cylinder 15 are made of epoxy resin composite material.

[0047] The annular connecting cylinder 18 is fixedly connected to the bottom of the top diversion cylinder 16 of the box;

[0048] The lower end of the core column oil baffle cylinder 15 is fixed to the lower oil baffle plate 13, and the upper end of the core column oil baffle cylinder 15 is connected to the lower end of the annular connecting cylinder 18. The top diverter cylinder 16 of this design is used to balance the oil flow velocity of each phase, reduce vortices caused by flow velocity differences, and improve oil flow stability.

[0049] In this embodiment of the utility model, multiple heat-absorbing ribs 8 and heat-dissipating ribs 9 are provided. Each heat-absorbing rib 8 and heat-dissipating rib 9 is a plate-shaped structure, and a predetermined distance is provided between adjacent heat-absorbing ribs 8 and heat-dissipating ribs 9. Specifically, the distance between two adjacent heat-absorbing ribs 8 is 15-25mm, and the distance between two adjacent heat-dissipating ribs 9 is 15-25mm. The heat-absorbing ribs 8 and heat-dissipating ribs 9 are made of aluminum alloy or cold-rolled steel plate. The iron core 3 is an equilateral triangular three-dimensional structure formed by splicing three single-frame iron cores with a central angle of 120°.

[0050] In this embodiment of the utility model, an 8mm-15mm oil flow gap is provided between the three-phase oil baffle 10 and the transformer top cover 2 to guide the oil flow along a predetermined path and avoid the generation of eddies.

[0051] The optimized heat dissipation system for the oil-immersed amorphous three-dimensional wound core transformer of this utility model embodiment also includes a lower oil pad 11, wherein the lower oil pad 11 is a long strip structure, the lower oil pad 11 is evenly distributed along the bottom circumference of the transformer tank 1, the bottom surface of the lower oil pad 11 is fixedly connected to the bottom of the transformer tank 1, and the top surface of the lower oil pad 11 is fixedly connected to the lower oil plate 13.

[0052] The lower oil baffle block 11 of this utility model embodiment has a long strip structure. Multiple trapezoidal cross-section fins are vertically distributed on the base of the lower oil baffle block 11. The spacing between adjacent fins is 10mm-20mm. Each fin has an oblique angle of 7° with the vertical direction at its upper end, which is used to reduce the cross-sectional area of ​​the flow channel and increase the oil flow velocity.

[0053] The core oil baffle cylinder 15 and the top diverter cylinder 16 form a central diversion system, connected by an internal annular connecting cylinder 18. This system controls the direction of the central oil flow and guides the oil flow across the surfaces of the high-voltage winding potting cylinder 4 and the low-voltage winding potting cylinder 5. This improves the utilization rate of the transformer oil, allowing most of the oil to pass through the surfaces of the high-voltage winding potting cylinder 4 and the low-voltage winding potting cylinder 5, thus carrying away the heat it generates.

[0054] In this embodiment of the utility model, the lower end of the iron core 3 is connected to the base 19 via the lower foot iron 20. A gasket 22 is provided between the base 19 and the bottom surface 23 of the transformer, and an oil inlet is provided on the bottom surface of the base 19.

[0055] In this embodiment of the invention, the upper oil baffle 12 is connected and fixed to the heat-absorbing rib 8 via the upper pressure block 14, and the lower oil baffle 13 is pressed onto the bottom surface 23 of the oil tank via a pad, forming an upper oil baffle structure and a lower oil baffle structure. The connecting plate 21 is used for the right-angle connection between the iron core clamp and the housing, enhancing structural stability, and the triangular iron 24 is set at the bottom of the housing to support the base 19.

[0056] Specifically, both the heat dissipation fin 9 and the heat absorption fin 8 have a rib-like structure, which are used to increase the contact area between the housing 1 and the outside air and transformer oil, respectively, and enhance the heat exchange efficiency.

[0057] The three-phase oil baffle cylinder 10, the core oil baffle cylinder 15, and the lower oil baffle pad 11 of this utility model cooperate to form a multi-stage oil flow guiding structure, so that the transformer oil flows sequentially through the winding surface, the core area and the bottom of the tank, thereby achieving efficient heat transfer and dissipation.

[0058] Existing technologies for small and medium-sized oil-immersed transformers have certain drawbacks in heat dissipation, primarily relying on oil convection and natural heat dissipation from the tank surface. Due to their small size and relatively limited tank surface area, natural heat dissipation capacity is limited. Under high load operation, heat is difficult to dissipate quickly, easily causing the transformer's internal temperature to rise, affecting its performance and service life. The design of heat-absorbing fins 8 on the inner wall of the tank 1 and heat-dissipating fins 9 on the outer wall of the tank 1 offers several significant advantages. From the perspective of improved heat transfer efficiency, the heat-absorbing fins 8 on the inner wall of the tank increase the contact area with the transformer oil, enabling more efficient absorption of heat generated and transferred to the oil during transformer operation, accelerating the heat conduction process from the transformer's interior to the tank. Meanwhile, the external heat-dissipating fins 9 greatly expand the contact area between the tank and the outside air, allowing the heat absorbed from the tank to dissipate more quickly into the surrounding environment, enhancing heat exchange, effectively improving the overall heat dissipation efficiency of the transformer, ensuring operation within the normal operating temperature range, and reducing the risk of failure due to overheating.

[0059] In terms of enhancing structural strength, the presence of heat-absorbing ribs 8 and heat-dissipating ribs 9 increases the mechanical strength and rigidity of the oil tank. Like reinforcing ribs, they improve the oil tank's ability to resist internal oil pressure and external mechanical stress, making the oil tank more stable and reliable under various operating conditions, reducing the possibility of deformation, and extending the transformer's service life.

[0060] In oil-immersed transformers, the generation of localized eddy currents can lead to increased energy loss, localized overheating, and reduced transformer oil utilization. The design of a three-phase oil baffle 10 effectively solves the oil flow eddy problem, with significant results. The three-phase oil baffle 10 can rationally guide the oil flow path. During the operation of an oil-immersed transformer, the flow state of the oil is crucial for heat dissipation and preventing eddy currents. The three-phase oil baffle 10, through its specific shape and position, guides the oil flow smoothly along a predetermined direction, preventing irregular eddy current movement in certain areas and improving the transformer's heat dissipation efficiency.

[0061] During transformer operation, the windings are the primary heat source. If the heat generated by the windings cannot be dissipated effectively and promptly, it will adversely affect the transformer's performance and service life. The core-post oil baffle 15 plays a crucial role in solving this problem. The core-post oil baffle 15 precisely guides the flow path of the transformer oil, allowing it to flow regularly and sufficiently across the surfaces of the high-voltage winding potting cylinder 4 and the low-voltage winding potting cylinder 5. Since the heat generated by the windings during operation is directly transferred to their surfaces, and transformer oil has excellent thermal conductivity, a large amount of heat can be quickly carried away when the oil flows sufficiently across these surfaces. This process ensures efficient heat transfer from the windings to the oil, preventing heat accumulation in localized areas of the windings and effectively reducing the winding temperature. Simultaneously, the core-post oil baffle 15 makes the oil flow distribution around the windings more uniform, ensuring that all parts of the windings receive sufficient cooling, thus improving the overall heat dissipation and thermal stability of the transformer.

[0062] In oil-immersed transformers, the oil baffle plays a crucial role. When oil flows through the bottom surface 23 of the transformer, the oil baffle reduces the flow space. According to fluid mechanics principles, with a constant flow rate, a smaller flow channel cross-sectional area leads to an increase in fluid velocity. Therefore, the oil baffle increases the flow velocity of the oil as it flows through the bottom. This rapid oil flow allows for more effective heat dissipation from components such as the transformer windings, enhancing heat dissipation and enabling the transformer to operate under more stable temperature conditions. This reduces the risk of failures due to heat accumulation and improves the transformer's operating efficiency and reliability.

[0063] The design of the top-mounted shunt 16 helps to balance the oil flow velocity. Due to the complex internal structure of the transformer, the oil flow velocity may vary at different locations, and this velocity difference can easily induce vortices. The top-mounted shunt 16 can adjust the oil flow, making the oil flow velocity between each phase more balanced. When the oil flow velocity is uniform, the stability of the oil flow is improved, reducing the possibility of vortices caused by inconsistent velocities.

[0064] The above description is merely an embodiment of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. An optimized heat dissipation system for an oil-immersed amorphous three-dimensional wound core transformer, characterized in that, include: Transformer housing (1), iron core (3), three-phase oil baffle (10), upper iron core clamp (6), lower iron core clamp (7), top shunt cylinder (16), core column oil baffle (15), high voltage winding potting cylinder (4) and low voltage winding potting cylinder (5); The iron core (3) is fixed inside the transformer box (1) by the upper iron core clamp (6) and the lower iron core clamp (7); The transformer housing (1) has heat-absorbing ribs (8) on the inner side and heat-dissipating ribs (9) on the outer side. The three-phase oil baffle (10) is arranged around the outside of the high-voltage winding potting cylinder (4), and its upper and lower ends are respectively connected to the upper oil baffle (12) and the lower oil baffle (13), and are fixed to the upper clamp (6) and the lower clamp (7) of the iron core through the connector; The top shunt cylinder (16) is an inverted frustum-shaped cylinder. The bottom of the top shunt cylinder (16) is connected to the core column oil baffle cylinder (15) through an annular connecting cylinder (18). The top of the top shunt cylinder (16) is connected to the transformer top cover (2) through a shunt cylinder fixing clamp (17). The annular connecting cylinder (18) is fixedly connected to the bottom of the top diversion cylinder (16); The lower end of the core oil baffle cylinder (15) is fixed to the lower oil baffle plate (13), and the upper end of the core oil baffle cylinder (15) is connected to the lower end of the annular connecting cylinder (18).

2. The optimized heat dissipation system for an oil-immersed amorphous three-dimensional wound core transformer according to claim 1, characterized in that, Multiple heat-absorbing ribs (8) and heat-dissipating ribs (9) are provided. Each heat-absorbing rib (8) and heat-dissipating rib (9) is a plate-shaped structure, and a predetermined distance is provided between adjacent heat-absorbing ribs (8) and heat-dissipating ribs (9). The iron core (3) is an equilateral triangular three-dimensional structure formed by splicing three single-frame iron cores with a central angle of 120°.

3. The optimized heat dissipation system for an oil-immersed amorphous three-dimensional wound core transformer according to claim 1, characterized in that, An 8mm-15mm oil flow gap is provided between the three-phase oil baffle (10) and the transformer cover (2).

4. The optimized heat dissipation system according to claim 1, characterized in that, It also includes a lower oil baffle block (11), which is a long strip structure. The lower oil baffle block (11) is evenly distributed around the bottom of the transformer box (1). The bottom surface of the lower oil baffle block (11) is fixedly connected to the bottom of the transformer box (1), and the top surface of the lower oil baffle block (11) is fixedly connected to the lower oil baffle plate (13).

5. The optimized heat dissipation system for an oil-immersed amorphous three-dimensional wound core transformer according to claim 4, characterized in that, The lower oil baffle block (11) is a long strip structure. Multiple trapezoidal cross-section fins are vertically distributed on the base of the lower oil baffle block (11). The distance between adjacent fins is 10mm-20mm. Each fin has an oblique angle of 7° with the vertical direction at its upper end.

6. The optimized heat dissipation system for an oil-immersed amorphous three-dimensional wound core transformer according to claim 1, characterized in that, The lower end of the iron core (3) is connected to the base (19) via a lower leg iron (20), and the bottom surface of the base (19) is provided with an oil inlet.

7. The optimized heat dissipation system according to claim 5, characterized in that, The upper baffle plate (12) is connected and fixed to the heat-absorbing rib (8) through the upper pressure block (14), and the lower baffle plate (13) is pressed against the bottom surface (23) of the oil tank through the lower baffle pad block (11).

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