Efficient heat dissipation power transformer

Abstract

The invention belongs to the technical field of transformers, and relates to an efficient heat dissipation power transformer which comprises an oil tank and an efficient heat dissipation mechanism arranged on the outer wall of the oil tank. The efficient heat dissipation mechanism is composed of a plurality of wave-shaped folded heat dissipation fin units, and insulating oil cavities are formed in fins and communicated through rubber pipes. The heat dissipation unit is connected with the expansion and extension mechanism, the extension rod is driven to extend and retract by utilizing the thermal expansion and cold contraction characteristics of insulating oil in the oil tank, and the expansion area of the heat dissipation fins is automatically adjusted. The deflection windward mechanism is matched with a sliding head through a guide rail, so that the heat dissipation unit can achieve 0-90-degree self-adaptive deflection along with the temperature change so as to optimize the windward angle. Meanwhile, high-temperature oil enters the unfolded heat dissipation fins to be cooled through the oil conveying channels in the extension rods, and meanwhile low-temperature oil is conveyed back into the oil tank through the oil outlet pipe to achieve secondary cooling. Cooperative adjustment of the heat dissipation area, the heat dissipation angle and oil way circulation is achieved, and compared with a traditional fixed heat dissipation structure, the heat dissipation efficiency is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning equipment, in particular to a high-efficiency heat dissipation power transformer. Background Art

[0002] During operation, power transformers generate significant heat due to energy losses such as iron and copper losses, causing internal temperatures to rise. Failure to dissipate heat in a timely manner not only accelerates insulation aging but can also cause equipment failures and impact grid reliability. Currently, oil-immersed transformers rely primarily on natural cooling via heat sinks or heat pipes on the casing's surface. However, their heat dissipation efficiency is limited by their fixed structure, making them incapable of handling complex and changing operating conditions.

[0003] Traditional heat dissipation designs typically utilize statically arranged heat sinks or heat pipes, along with external cooling fans. These designs offer a fixed heat dissipation area and are unable to adapt to changes in transformer load and temperature fluctuations. Under high load conditions, heat dissipation capacity may be insufficient, causing the oil temperature to continue to rise. Under low load conditions, this can waste heat dissipation resources.

[0004] To this end, we propose a high-efficiency heat dissipation power transformer. Summary of the Invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0006] A high-efficiency heat dissipation power transformer includes an oil tank, an outer wall of the oil tank is provided with a high-efficiency heat dissipation mechanism, the high-efficiency heat dissipation mechanism includes a plurality of heat dissipation units, the heat dissipation units include a plurality of heat dissipation fins, each heat dissipation fin has a cavity for storing insulating oil, an expansion and expansion unit is provided on one side of the heat dissipation fin, the expansion and expansion unit includes an expansion rod, the end of the expansion rod is fixedly connected to the farthest heat dissipation fin, the other end of the expansion rod is fixedly connected to a sliding disk, and the sliding disk is slidably connected within a sleeve, the sleeve extends into the interior of the oil tank, and the sliding disk is provided with an oil inlet pipe; A circulation unit is provided in the sleeve, and the circulation unit includes an oil passage. The oil passage is opened in the stretching rod, and an oil inlet connected to the oil passage is opened at one end of the stretching rod close to the sliding disk. The oil passage is connected to the internal cavity of the farthest cooling fin, and the internal cavity of the nearest cooling fin is connected to the oil outlet pipe.

[0007] Preferably, the plurality of heat dissipation fins are in a wave structure, adjacent heat dissipation fins are hinged by hinges, and the cavities in adjacent heat dissipation fins are connected by rubber tubes.

[0008] Preferably, the sleeve is rotatably connected to the side wall of the oil tank through a rotary sealing joint, and the rotary sealing joint is fixedly connected to the nearest heat dissipation fin through a mounting plate.

[0009] Preferably, the sleeve is fixedly connected to a sealing disk at one end near the sealing fins, the stretching rod slides through the middle of the sealing disk, the oil outlet pipes are provided on both sides of the stretching rod, the oil outlet pipes are fixed through the sealing disk and then slide through the sliding disk, the sleeve is fixedly connected to the sealing disk at one end near the sealing fins, the stretching rod slides through the middle of the sealing disk, the oil outlet pipes are provided on both sides of the stretching rod, the oil outlet pipes are fixed through the sealing disk and then slide through the sliding disk, the end of the oil outlet pipe away from the heat fins is rotatably connected to the oil storage plate through a rotary joint, the oil storage plate has a cavity therein, the upper end of the oil storage plate is fixedly connected to an outlet valve, the outlet valve extends out of the oil tank, the lower end of the oil storage plate is provided with an oil drain valve, and the oil storage plate is fixedly connected to the oil tank.

[0010] Preferably, it also includes a main body system, which includes the oil tank, and a magnetic circuit-circuit system for power transmission and voltage conversion is provided inside the oil tank. A low-voltage bushing and a high-voltage bushing electrically connected to the magnetic circuit-circuit system are provided on the top of the oil tank, and a side heat dissipation plate is provided on the side of the oil tank.

[0011] Preferably, the oil tank is filled with insulating oil for insulation and heat dissipation, and the magnetic circuit-electrical circuit system is in the insulating oil.

[0012] Preferably, it also includes a deflection and windward mechanism, which includes a guide rail, which is arranged on the stretching rod, and a sliding head is slidably connected in the guide rail, and the sliding head is fixedly connected to the outer wall of the oil tank by a connecting frame.

[0013] Preferably, a protective plate is provided above the efficient heat dissipation mechanism, and the protective plate is fixedly connected to the outer wall of the oil tank. A protective net is provided around the efficient heat dissipation mechanism, and the protective net is fixedly connected to the outer wall of the oil tank.

[0014] Beneficial effects of the present invention: (1) The wavy folded heat sink fin group is designed, and the extension rod is driven by oil pressure to automatically expand, so that the heat dissipation area increases as the oil temperature rises, solving the defect that traditional fixed heat sinks cannot be dynamically adjusted.

[0015] (2) The oil circulation system guides high-temperature oil into the expanded cooling fins and returns the cooling oil to the inside of the oil tank, forming two heat dissipation paths. The heat dissipation efficiency is significantly improved compared with the traditional structure. (3) The deflection mechanism cooperates with the guide rail and the sliding head to enable the heat dissipation unit to automatically adjust the windward angle according to temperature changes, and can achieve 0-90° stepless deflection to ensure the best heat dissipation effect in a natural wind environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] in: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure inside the fuel tank of the present invention; Figure 3 Schematic diagram of the structure of the oil storage plate, oil drain valve and sleeve in the present invention; Figure 4 Schematic diagram of the structure of the heat dissipation unit in the present invention; Figure 5 Schematic diagram of the structure of the heat dissipation unit and the deflection windward mechanism in the present invention; Figure 6 for Figure 5 A magnified schematic diagram of the structure at center A; Figure 7 Schematic diagram of the structure of the high-efficiency heat dissipation mechanism of the present invention; Figure 8 for Figure 7 A magnified schematic diagram of the structure at B in the middle; Figure 9 for Figure 7 A magnified schematic diagram of the structure at C in the middle; In the picture: 1. Main system; 11. Fuel tank; 12. Low-voltage bushing; 13. High-voltage bushing; 14. Magnetic circuit-circuit system; 15. Side heat sink; 2. High-efficiency heat dissipation mechanism; 21. Heat dissipation unit; 211. Heat dissipation fins; 212. Loose-leaf leaf; 213. Rubber hose; 214. Mounting plate; 215. Rotary sealing joint; 22. Expansion and extension unit; 221. Sleeve; 222. Extension rod; 223. Sliding plate; 224. Oil inlet pipe; 23. Circulation unit; 231. Oil inlet; 232. Oil delivery channel; 234. Oil outlet pipe; 235. Sealing plate; 236. Exhaust valve; 237. Oil storage plate; 238. Oil drain valve; 3. Deflection mechanism; 31. Guide rail; 32. Sliding head; 4. Protective plate; 5. Protective net. DETAILED DESCRIPTION

[0018] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 work are within the scope of protection of the present invention.

[0019] Example: like Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, a high-efficiency heat dissipation power transformer includes an oil tank 11. An high-efficiency heat dissipation mechanism 2 is provided on the outer wall of the oil tank 11. The high-efficiency heat dissipation mechanism 2 includes multiple heat dissipation units 21. The heat dissipation units 21 include multiple heat dissipation fins 211. The heat dissipation fins 211 have cavities for storing insulating oil. An expansion and expansion unit 22 is provided on one side of the heat dissipation fins 211. The expansion and expansion unit 22 includes an expansion rod 222. The end of the expansion rod 222 is fixedly connected to the farthest heat dissipation fin 211. The other end of the expansion rod 222 is fixedly connected to a sliding disk 223. The sliding disk 223 is slidably connected to a sleeve 221. The sleeve 221 extends into the interior of the oil tank 11. The sliding disk 223 is provided with an oil inlet pipe 224. The sleeve 221 is provided with a circulation unit 23, which includes an oil delivery channel 232. The oil delivery channel 232 is provided in the extension rod 222. An oil inlet 231 is provided at one end of the extension rod 222 close to the sliding plate 223 and connected to the oil delivery channel 232. The oil delivery channel 232 is connected to the inner cavity of the farthest heat sink fin 211, and the inner cavity of the nearest heat sink fin 211 is connected to the oil outlet pipe 234. The plurality of heat sink fins 211 are wavy in structure. Adjacent heat sink fins 211 are hingedly connected by hinges 212. The cavities within adjacent heat sink fins 211 are connected by rubber tubes 213. The plurality of heat sink fins 211 are interconnected, and insulating oil flows within the cavities. Due to the influence of the temperature gradient, insulating oil in different areas and at different temperatures exchanges and flows. The plurality of heat sink fins 211 are expanded or contracted by the extension rods 222, adaptively adjusting the expanded area and thus the heat dissipation efficiency. The sleeve 221 is rotatably connected to the side wall of the oil tank 11 via a rotary sealing joint 215. The rotary sealing joint 215 is fixedly connected to the nearest heat dissipation fin 211 via a mounting plate 214. The rotary sealing joint 215 is a prior art and will not be described in detail here. One end of the sleeve 221 close to the heat dissipation fin 211 is fixedly connected to a sealing disk 235, and an extension rod 222 slides through the middle of the sealing disk 235. Oil outlet pipes 234 are provided on both sides of the extension rod 222. The oil outlet pipes 234 are fixed through the sealing disk 235 and then slide through the sliding disk 223.

[0020] During installation, it is necessary to ensure that the sleeve 221, oil outlet pipe 234, and heat sink fins 211 are fully filled with insulating oil. The oil tank 11 should be filled to a preset mark, and a predetermined space should be left above the oil tank 11. A pressure valve is provided at the upper end of the oil tank 11 (not shown; this valve primarily protects the insulating oil in the oil tank 11 from excessive pressure due to thermal expansion, potentially causing damage to components, and is used to release pressure in a timely manner). During operation, copper loss, iron loss, and additional losses (such as heating of metal components caused by magnetic flux leakage and inefficient cooling systems) occur. These losses collectively increase transformer temperature, impacting its performance and lifespan. At the same time, the temperature rise causes the volume of the insulating oil inside the oil tank 11 to expand, so the insulating oil pushes the sliding disk 223 in the sleeve 221 to move outward, and the sliding disk 223 drives the stretching rod 222 to move outward. Because the head of the stretching rod 222 is connected to the heat dissipation fins 211, the stretching rod 222 drives the folded wavy heat dissipation fins 211 to unfold, so that the contact area between the multiple heat dissipation fins 211 and the air is increased, so that the multiple heat dissipation fins 211 are in a larger external space, thereby improving the cooling efficiency.

[0021] At the same time, when the sliding plate 223 slides outward, the insulating oil in the sleeve 221 is squeezed into the oil inlet 231 because the sealing plate 235 closes the sleeve 221, and then enters the heat sink 211 through the oil delivery channel 232 in the extension rod 222, and then continuously fills the heat sink 211. Because multiple heat sink fins 211 are connected in series, the original insulating oil in the heat sink fin 211 is pushed into the oil outlet pipe 234, and then enters the cavity inside the oil storage plate 237 from the oil outlet pipe 234. It should be noted that because the oil The temperature of the insulating oil in the box 11 increases, so the insulating oil in the sleeve 221 absorbs heat and is then transported to the heat dissipation fins 211 for cooling. At this time, the heat dissipation fins 211 are expanded, further improving the cooling efficiency. At the same time, the original insulating oil in the heat dissipation fins 211 is outside the oil tank 11 and is at a lower temperature. The insulating oil with a lower temperature is pushed into the oil storage plate 237. The oil storage plate 237 is located inside the oil tank 11 and is in contact with the insulating oil, so that the insulating oil with a low temperature quickly reduces the temperature inside the oil tank 11, thereby once again improving the heat dissipation efficiency.

[0022] It should be noted that when the insulating oil enters the oil storage plate 237, there is pressure in the oil storage plate 237 (the pressure should be less than the pressure of the oil tank 11 at this time), which is controlled by the air outlet valve 236. When the pressure is too high, the air outlet valve 236 will exhaust, and the oil drain valve 238 is located at the bottom of the oil storage plate 237. When the pressure in the oil tank 11 drops below the threshold of the oil drain valve 238 (when the temperature in the oil tank 11 drops, the pressure in the oil tank 11 is normal. At this time, the pressure in the oil storage plate 237 is still maintained, and the insulating oil can be discharged into the oil tank 11), the oil drain valve 238 discharges the insulating oil into the oil tank 11, forming an insulating oil circulation (the oil drain valve 238 has a one-way oil discharge function).

[0023] It is also necessary to understand that when the temperature inside the oil tank 11 is higher, the expansion volume of the insulating oil is larger, the extension length of the extension rod 222 is longer, the expansion degree of the heat dissipation fins 211 is greater, and the heat dissipation effect is better, thereby forming an adaptive heat dissipation efficiency adjustment (the larger the extension of the heat dissipation fins 211 means the larger the area, and the greater the risk of damage outdoors, so when the heat dissipation is satisfied, the surface area of ​​the entire heat dissipation unit 21 is reduced).

[0024] like Figure 1 and Figure 2 As shown, the main system 1 includes an oil tank 11, and a magnetic circuit-circuit system 14 for power transmission and voltage conversion is provided inside the oil tank 11. A low-voltage bushing 12 and a high-voltage bushing 13 electrically connected to the magnetic circuit-circuit system 14 are provided on the top of the oil tank 11, and a side heat sink 15 is provided on the side of the oil tank 11. The oil tank 11 is filled with insulating oil for insulation and heat dissipation, and the magnetic circuit-electrical circuit system 14 is in the insulating oil; the insulating oil is used to cool the magnetic circuit-electrical circuit system 14 when it is working.

[0025] A protective plate 4 is provided above the efficient heat dissipation mechanism 2, and the protective plate 4 is fixedly connected to the outer wall of the oil tank 11. A protective net 5 is provided around the efficient heat dissipation mechanism 2, and the protective net 5 is fixedly connected to the outer wall of the oil tank 11; the protective plate 4 and the protective net 5 are used for outdoor protection.

[0026] like Figure 5 and Figure 6 As shown, the deflection windward mechanism 3 includes a guide rail 31 , which is provided on the stretching rod 222 , and a sliding head 32 is slidably connected in the guide rail 31 , and the sliding head 32 is fixedly connected to the outer wall of the oil tank 11 by a connecting frame.

[0027] In this embodiment, when the extension rod 222 extends outward, it drives the guide rail 31 to move. Since the guide rail 31 is slidably connected with the sliding head 32, and the position of the sliding head 32 remains unchanged, the extension rod 222 starts to rotate under the guidance of the guide rail 31, thereby driving the entire heat dissipation unit 21 to rotate, so that the heat dissipation unit 21 rotates to a preset angle, so that the heat dissipation fins 211 can receive more wind, thereby improving the heat dissipation efficiency.

[0028] It should be noted that the length of the guide rail 31 is pre-designed. After the slider 32 passes through the entire guide rail 31, the extension rod 222 rotates 90 degrees. Therefore, when the temperature of the fuel tank 11 increases, the extension rod 222 extends further, and the sliding path of the slider 32 in the guide rail 31 increases. This increases the deflection angle of the extension rod 222, and thus the deflection angle of the cooling fins 211, thereby receiving more wind. (In a natural environment, wind generally blows horizontally, so the maximum deflection angle of the cooling fins 211 is 90 degrees, which is perpendicular to the horizontal wind. This allows the cooling fins 211 to receive the most wind and achieve the highest heat dissipation efficiency. It should also be noted that the adaptive deflection angle of the cooling fins 211 is determined by the temperature within the fuel tank 11. The higher the temperature within the fuel tank 11, the greater the deflection angle of the cooling fins 211, and the higher the heat dissipation efficiency. At the same time, the deflection angle should be minimized while still ensuring adequate heat dissipation, as crosswinds can carry debris that could damage the deflected cooling fins 211.)

[0029] The workflow is as follows: During installation, ensure that the sleeve 221, oil outlet pipe 234, and heat sink fins 211 are fully filled with insulating oil. The oil tank 11 should be filled to a preset mark, with a predetermined amount of space left above the tank. A pressure valve is located at the upper end of the tank 11. During operation, copper loss, iron loss, and other additional losses occur. These losses collectively increase the transformer's temperature, impacting its performance and lifespan. At the same time, the temperature rises and the volume of the insulating oil inside the oil tank 11 expands, so the insulating oil pushes the sliding disk 223 in the sleeve 221 to move outward. When the sliding disk 223 slides outward, the insulating oil in the sleeve 221 is squeezed into the oil inlet 231 because the sealing disk 235 closes the sleeve 221, and then enters the heat sink 211 through the oil delivery channel 232 in the extension rod 222, and then continuously fills the heat sink 211. Because multiple heat sink fins 211 are connected in series, the original insulating oil in the heat sink 211 is pushed into the oil outlet pipe 234, and then enters the storage tank from the oil outlet pipe 234. Within the cavity of the oil plate 237, it should be noted that as the temperature of the insulating oil in the oil tank 11 increases, the insulating oil in the sleeve 221 absorbs the heat and is subsequently transported to the heat sink fins 211 for cooling. The heat sink fins 211 then expand, further improving cooling efficiency. Simultaneously, the original insulating oil in the heat sink fins 211, which is now cooler than the original insulating oil outside the oil tank 11, is pushed into the oil reservoir 237, which is located inside the oil tank 11 and in contact with the insulating oil. This cooler insulating oil quickly lowers the temperature inside the oil tank 11, improving heat dissipation efficiency. During this process, when the sliding plate 223 drives the extension rod 222 outward, because the head of the extension rod 222 is connected to the heat sink fins 211, the extension rod 222 causes the folded, wavy heat sink fins 211 to expand, increasing the contact area between the multiple heat sink fins 211 and the air, exposing the multiple heat sink fins 211 to a larger external space, further improving cooling efficiency. At the same time, when the extension rod 222 extends outward, it drives the guide rail 31 to move. Since the guide rail 31 is slidably connected with the sliding head 32, and the position of the sliding head 32 remains unchanged, the extension rod 222 starts to rotate under the guidance of the guide rail 31, thereby driving the entire heat dissipation unit 21 to rotate, so that the heat dissipation unit 21 rotates a preset angle, so that the heat dissipation fins 211 can receive more wind, thereby further improving the heat dissipation efficiency.

[0030] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat dissipation power transformer, comprising an oil tank (11), characterized in that: An efficient heat dissipation mechanism (2) is provided on the outer wall of the oil tank (11), the efficient heat dissipation mechanism (2) includes a plurality of heat dissipation units (21), the heat dissipation units (21) include a plurality of heat dissipation fins (211), a cavity for storing insulating oil is provided in the heat dissipation fins (211), an expansion and extension unit (22) is provided on one side of the heat dissipation fins (211), the expansion and extension unit (22) includes a stretching rod (222), an end of the stretching rod (222) is fixedly connected to the farthest heat dissipation fin (211), the other end of the stretching rod (222) is fixedly connected to a sliding disk (223), and the sliding disk (223) is slidably connected in a sleeve (221), the sleeve (221) extends into the interior of the oil tank (11), and an oil inlet pipe (224) is provided on the sliding disk (223); A circulation unit (23) is provided in the sleeve (221), and the circulation unit (23) includes an oil delivery channel (232). The oil delivery channel (232) is opened in the stretching rod (222), and an oil inlet (231) connected to the oil delivery channel (232) is opened at one end of the stretching rod (222) close to the sliding plate (223). The oil delivery channel (232) is connected to the internal cavity of the farthest heat sink fin (211), and the internal cavity of the nearest heat sink fin (211) is connected to the oil outlet pipe (234).

2. The high-efficiency heat dissipation power transformer as claimed in claim 1, characterized in that: The plurality of heat dissipation fins (211) are in a wave structure, adjacent heat dissipation fins (211) are hinged via hinges (212), and the cavities within adjacent heat dissipation fins (211) are connected via rubber tubes (213).

3. The high-efficiency heat dissipation power transformer as claimed in claim 2, characterized in that: The sleeve (221) is rotatably connected to the side wall of the oil tank (11) via a rotary sealing joint (215), and the rotary sealing joint (215) is fixedly connected to the nearest heat dissipation fin (211) via a mounting plate (214).

4. The high-efficiency heat dissipation power transformer as claimed in claim 3, characterized in that: The sleeve (221) is fixedly connected to a sealing disk (235) at one end close to the heat dissipation fin (211), and the stretching rod (222) slides through the middle of the sealing disk (235). The oil outlet pipes (234) are provided on both sides of the stretching rod (222). The oil outlet pipes (234) are fixedly passed through the sealing disk (235) and then slide through the sliding disk (223). The end of the oil outlet pipe (234) away from the heat dissipation fin (211) is rotatably connected to an oil storage plate (237) through a rotary joint. A cavity is provided in the oil storage plate (237). An air outlet valve (236) is fixedly connected to the upper end of the oil storage plate (237), and the air outlet valve (236) extends out of the oil tank (11). An oil drain valve (238) is provided at the lower end of the oil storage plate (237). The oil storage plate (237) is fixedly connected to the oil tank (11).

5. The high-efficiency heat dissipation power transformer as claimed in claim 1, characterized in that: The invention also includes a main body system (1), wherein the main body system (1) includes the oil tank (11), wherein a magnetic circuit-circuit system (14) for power transmission and voltage conversion is provided inside the oil tank (11), a low-voltage bushing (12) and a high-voltage bushing (13) electrically connected to the magnetic circuit-circuit system (14) are provided on the top of the oil tank (11), and a side heat dissipation plate (15) is provided on the side of the oil tank (11).

6. The high-efficiency heat dissipation power transformer as claimed in claim 5, characterized in that: The oil tank (11) is filled with insulating oil for insulation and heat dissipation, and the magnetic circuit-circuit system (14) is located in the insulating oil.

7. The high-efficiency heat dissipation power transformer as claimed in claim 1, characterized in that: The deflection mechanism (3) is also included. The deflection mechanism (3) includes a guide rail (31). The guide rail (31) is arranged on the stretching rod (222). A sliding head (32) is slidably connected in the guide rail (31). The sliding head (32) is fixedly connected to the outer wall of the oil tank (11) by a connecting frame.

8. The high-efficiency heat dissipation power transformer as claimed in claim 1, characterized in that: A protective plate (4) is provided above the high-efficiency heat dissipation mechanism (2), and the protective plate (4) is fixedly connected to the outer wall of the oil tank (11). A protective net (5) is provided around the high-efficiency heat dissipation mechanism (2), and the protective net (5) is fixedly connected to the outer wall of the oil tank (11).

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