A high voltage direct current converter transformer

Abstract

The application discloses a high-voltage direct-current converter transformer and particularly relates to the field of transformers, which comprises a protective shell, the inner bottom side of the protective shell is fixedly connected with a supporting frame, and the top of the supporting frame is fixedly connected with a transformer body; a wind cooling mechanism is arranged on the left side of the protective shell, the wind cooling mechanism comprises a fixed box fixedly connected with the protective shell, and the inside of the fixed box is rotatably connected with threaded rods on the left and right sides; an external power source is used to start a motor, the motor output end drives the threaded rods to rotate, the threaded rods drive the moving block and the fan to move horizontally, meanwhile, an external power source is used to start a cylinder one, the cylinder one output end drives the sliding block and the fan to move upward or downward, and the above-mentioned moving mode enables the fan to cool the transformer at a fixed point, the fan can also cool the transformer in a reciprocating mode, and the hot air in the shell can be quickly discharged, so that the transformer is efficiently cooled.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, specifically a high-voltage DC converter transformer. Background Technology

[0002] DC converter transformers are mainly used for DC power conversion and control in DC transmission systems. They connect AC transmission systems to DC transmission systems, enabling reliable and efficient long-distance high-voltage DC transmission. By controlling the on / off state of switching elements such as thyristors, DC converter transformers can convert and regulate DC voltage.

[0003] When the transformer itself is operating, its temperature rises, which in turn raises the temperature inside the protective casing. Furthermore, hot air is difficult to dissipate quickly. Common air-cooling devices, with their fixed locations, can only cool a specific area of ​​the transformer, resulting in ineffective heat dissipation. Therefore, the inventors have provided a high-voltage DC converter transformer to solve the problems mentioned in the background section. Summary of the Invention

[0004] The purpose of this invention is to provide a high-voltage DC converter transformer that achieves efficient heat dissipation.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A high-voltage direct current converter transformer includes a protective shell. A support frame is fixedly connected to the bottom of the protective shell, and a transformer body is fixedly connected to the top of the support frame. A cooling mechanism is provided on the left side of the protective shell. The cooling mechanism includes a fixed box fixedly connected to the protective shell. Threaded rods are rotatably connected to the left and right sides of the fixed box. A movable block is threadedly connected to the outer side of the threaded rods. A hollow tube is fixedly connected to the front side of the movable block. A cylinder is fixedly connected to the inner side of the hollow tube. A sliding block is fixedly connected to the output end of the cylinder. The sliding block is slidably connected to the hollow tube. A fan is connected to the sliding block via a flipping assembly. A motor is fixedly connected to the right side of the fixed box, and the output end of the motor is fixedly connected to the threaded rod.

[0007] As a further aspect of the present invention: the internal cross-section of the hollow tube is adapted to the side surface of the sliding block.

[0008] As a further embodiment of the present invention: the flipping assembly includes a connecting ring fixedly connected to the hollow tube, a rotating rod rotatably connected inside the connecting ring via a bearing, a connecting frame fixedly connected to the right side of the rotating rod, a flipping frame hinged inside the connecting frame via a hinge, and the right side of the flipping frame fixedly connected to a fan; a cylinder three is hinged to the right side of the rotating rod via a hinge, and the output end of the cylinder three is hinged to the fan via a hinge.

[0009] As a further embodiment of the present invention: a second cylinder is fixedly connected to the right side of the hollow tube by a fixing member, and a toothed plate is fixedly connected to the output end of the second cylinder; a gear is fixedly connected to the right side of the outer side of the rotating rod, and the gear meshes with the toothed plate.

[0010] As a further embodiment of the present invention: a side filter screen is fixedly installed on the right side of the protective shell; an air inlet slot is provided on the left side of the protective shell, and side filters screens are fixedly connected to the left and right sides of the air inlet slot respectively; a groove is provided on the top of the protective shell, a fixing frame is fixedly connected to the top of the groove, a top filter screen is fixedly connected to the top of the fixing frame, and a waterproof and breathable membrane is provided inside the fixing frame.

[0011] As a further embodiment of the present invention: the water cooling mechanism includes a water tank fixedly connected to the protective shell, a water pump fixedly installed on the right side of the water tank, the input end of the water pump being fixedly connected to the inside of the water tank through a pipe, the output end of the water pump being fixedly connected to an outlet pipe, the rear end of the outlet pipe passing through the surface of the protective shell and the rear end of the outlet pipe being fixedly connected to a T-shaped pipe, the left side of the T-shaped pipe being fixedly connected to a second liquid cooling pipe, the second liquid cooling pipe being fixedly connected to the inner surface of the support frame after a bend, and then the end of the second liquid cooling pipe moving out of the support frame and the end of the second liquid cooling pipe being fixedly connected to a connector, the front end of the connector being fixedly connected to a return water pipe, and the other end of the return water pipe being fixedly connected to the water tank.

[0012] As a further embodiment of the present invention: a semiconductor cooling chip is fixedly installed on the front side of the water tank.

[0013] As a further embodiment of the present invention: a liquid cooling pipe is fixedly connected to the right side of the T-shaped tube. The liquid cooling pipe extends to the right and penetrates the left side surface of the protective shell, and is located between the two side filters. Then, the liquid cooling pipe passes through the surface of the side filters and is fixedly connected to the connector. A one-way valve is installed on the liquid cooling pipe and the liquid cooling pipe near the connector.

[0014] As a further embodiment of the present invention: the first liquid cooling pipe is arranged longitudinally in an S-shape between the two side filters, and the second liquid cooling pipe is arranged laterally in an S-shape inside the support frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This high-voltage DC converter transformer starts a motor via an external power supply. The motor's output drives a threaded rod to rotate, which in turn moves a moving block and a fan horizontally. Simultaneously, cylinder one is started via an external power supply. The output of cylinder one drives a sliding block and a fan to move upward or downward. Through these movement methods, the fan can cool the transformer at a fixed point, or it can cool a large area of ​​the transformer through a reciprocating motion. It can also quickly exhaust hot air from gaps in the casing, thereby achieving a highly efficient cooling effect for the transformer.

[0017] Furthermore, this high-voltage DC converter transformer first cools the water in the tank using a semiconductor cooling chip. Then, a water pump draws in the low-temperature water from the tank. The water flows through an outlet pipe and a T-shaped pipe, then splits into liquid cooling pipe one and liquid cooling pipe two. As the water in liquid cooling pipe two flows past the support frame, heat is transferred between the support frame and the bottom of the transformer body, thus directly cooling the transformer body. The water, after heat transfer to the transformer body, increases in temperature and flows back into the tank through the connector as subsequent water flows in. This achieves a cyclical cooling effect on the transformer body. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-voltage DC converter transformer.

[0019] Figure 2 This is a schematic cross-sectional view of the overall structure of a high-voltage DC converter transformer.

[0020] Figure 3 This is a schematic diagram of the water-cooling mechanism in a high-voltage DC converter transformer.

[0021] Figure 4 This is a schematic cross-sectional view of the overall structure of a high-voltage DC converter transformer.

[0022] Figure 5 This is a schematic diagram of another state of the water cooling mechanism in a high-voltage DC converter transformer.

[0023] Figure 6 A schematic diagram of the air-cooling mechanism in a high-voltage DC converter transformer;

[0024] Figure 7 A schematic cross-sectional view of the air-cooling mechanism in a high-voltage DC converter transformer;

[0025] Figure 8 This is a schematic diagram of the cross-sectional structure of the air-cooling mechanism in a high-voltage DC converter transformer from another perspective.

[0026] Figure 9 A type of high voltage DC converter transformer Figure 7 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 10 A schematic diagram of the first tilt state of the fan in a high-voltage DC converter transformer;

[0028] Figure 11 For a type of high voltage DC converter transformer Figure 10 A schematic diagram of the air outlet from the center.

[0029] Figure 12 A schematic diagram of the air-cooled second tilt state structure in a high-voltage DC converter transformer;

[0030] Figure 13 For a type of high voltage DC converter transformer Figure 11 Top-down view of the air outlet;

[0031] Figure 14 A schematic diagram of the air-cooled third tilt state structure in a high-voltage DC converter transformer;

[0032] Figure 15 For a type of high voltage DC converter transformer Figure 12 A schematic diagram of the air outlet from the center.

[0033] In the diagram: 10. Protective shell; 11. Sealed door; 12. Side filter screen; 13. Fixing frame; 14. Top filter screen; 15. Waterproof and breathable membrane; 20. Transformer body; 21. Support frame; 22. Air inlet slot; 30. Water cooling mechanism; 301. Water tank; 302. Water pump; 303. Water outlet pipe; 304. T-tube; 305. Liquid cooling pipe one; 306. Liquid cooling pipe two; 307. Connector; 308. Return water pipe 309. Semiconductor cooling chip; 40. Air-cooled mechanism; 401. Fixing box; 402. Motor; 403. Threaded rod; 404. Moving block; 405. Hollow tube; 406. Sliding block; 407. Cylinder 1; 408. Connecting ring; 409. Rotating rod; 410. Connecting frame; 411. Flipping frame; 412. Fan; 413. Cylinder 2; 414. Gear plate; 415. Gear; 416. Cylinder 3. Detailed Implementation

[0034] like Figure 1 , 2 As shown in Figure 7, a high-voltage DC converter transformer includes a protective shell 10. A closed door 11 is installed on the front of the protective shell 10. A support frame 21 is fixedly connected to the bottom inside the protective shell 10. A transformer body 20 is fixedly connected to the top of the support frame 21. A side filter screen 12 is fixedly installed on the right side of the protective shell 10. A wind-cooling mechanism 40 is provided on the left side of the protective shell 10.

[0035] The transformer body 20 is a DC converter transformer; in a high-voltage direct current (HVDC) transmission system, the converter transformer converts the AC transmission system into a DC transmission system, enabling long-distance, high-capacity power transmission. After the AC power is converted into DC power by a rectifier, it is controlled and regulated by the converter transformer before being supplied to the power grid or the user end.

[0036] Preferably, the protective shell 10 has an air inlet slot 22 on its left side, and side filters 12 are fixedly connected to the left and right sides of the air inlet slot 22, respectively; the protective shell 10 has a groove on its top, and a fixing frame 13 is fixedly connected to the top of the groove. A top filter 14 is fixedly connected to the top of the fixing frame 13, and a waterproof and breathable membrane 15 is provided inside the fixing frame 13. When the transformer body 20 is working, the internal components will emit a large amount of heat. In order to allow the transformer to operate in a suitable temperature environment, it is necessary to exhaust the heat. Therefore, filters are provided on three sides to facilitate the exchange of air between the inside of the protective shell 10 and the outside. In addition, a top filter 14 and a waterproof and breathable membrane 15 are provided to prevent rainwater and dust from entering the inside of the protective shell 10.

[0037] refer to Figure 6-15 The air-cooling mechanism 40 includes a fixed box 401 fixedly connected to the protective shell 10. A threaded rod 403 is rotatably connected to both the left and right sides of the fixed box 401. A moving block 404 is threadedly connected to the outer side of the threaded rod 403. A hollow tube 405 is fixedly connected to the front side of the moving block 404. A cylinder 407 is fixedly connected to the inner side of the hollow tube 405. A sliding block 406 is fixedly connected to the output end of the cylinder 407. The sliding block 406 is slidably connected to the hollow tube 405. A fan 412 is connected to the sliding block 406 via a flipping assembly. A motor 402 is fixedly connected to the right side of the fixed box 401. The output end of the motor 402 is fixedly connected to the threaded rod 403.

[0038] Preferably, the internal cross-section of the hollow tube 405 is adapted to the side of the sliding block 406, thereby achieving the effect of guiding the sliding block 406 when it moves.

[0039] When the transformer body 20 is working, its own temperature rises, which in turn raises the temperature inside the protective shell 10. There is also the problem that the hot air is difficult to dissipate quickly. Common air-cooling devices are fixed in position and can only cool a certain area of ​​the transformer, so the cooling effect is not good. Therefore, an air-cooling mechanism 40 is proposed.

[0040] When in use, the fan 412 is started by connecting an external power source. The air intake end of the fan 412 introduces outside air through the side filter 12 on the left side, and then blows the intake air directly onto the surface of the transformer body 20 to achieve the effect of cooling the transformer body 20.

[0041] Furthermore, the surface temperature of the transformer body 20 varies during use. To dissipate heat from the higher-temperature areas, the motor 402 is started by an external power source. The output of the motor 402 drives the threaded rod 403 to rotate, which in turn moves the moving block 404 and the fan 412 horizontally. Simultaneously, the cylinder 407 is started by an external power source. The output of the cylinder 407 drives the sliding block 406 and the fan 412 to move upward or downward until the air outlet of the fan 412 is directly facing the high-temperature area of ​​the transformer body 20, thus achieving rapid heat dissipation from the high-temperature area.

[0042] When it is necessary to dissipate heat over a large area of ​​the transformer body 20, the output end of the motor 402 can drive the threaded rod 403 to rotate, thereby driving the moving block 404 and the fan 412 to move horizontally back and forth, and the cylinder 407 is activated, so that the output end of the cylinder 407 drives the fan 412 to move up and down back and forth, allowing the air outlet of the fan 412 to blow towards a larger area of ​​the surface of the transformer body 20, increasing the heat dissipation range of the transformer body 20, and making the heat dissipation more uniform, thereby achieving the effect of large-area heat dissipation.

[0043] When it is necessary to quickly expel hot air from the protective shell 10, simply drive the fan 412 at the output end of the motor 402 to move it to the gap between the protective shell 10 and the transformer body 20, then briefly stop the rotation of the output end of the motor 402. Only drive the fan 412 up and down through the output end of the cylinder 407. This allows the fan 412 to quickly drive the hot air in the gap to the right and expel it through the side filter 12 on the right side, thereby achieving the effect of quickly expelling hot air and effectively reducing the temperature inside the protective shell 10.

[0044] Furthermore, the flipping assembly includes a connecting ring 408 fixedly connected to the hollow tube 405. A rotating rod 409 is rotatably connected inside the connecting ring 408 via a bearing. A connecting frame 410 is fixedly connected to the right side of the rotating rod 409. A flipping frame 411 is hinged inside the connecting frame 410 via a hinge. The right side of the flipping frame 411 is fixedly connected to the fan 412. A cylinder 416 is hinged to the right side of the rotating rod 409 via a hinge. The output end of the cylinder 416 is hinged to the fan 412 via a hinge.

[0045] Because the fan 412 is close to the transformer body 20, when the fan 412 is in use, it blows directly onto the surface of the transformer body 20. This may cause the hot air on the surface of the transformer body 20 to be pushed by the air blown by the fan 412, causing the hot air to be blown towards the fan 412. This will raise the temperature of the air around the fan 412 and affect the normal introduction of cold air from the outside by the fan 412. Therefore, by starting the cylinder 3 416 through an external power supply, the output end of the cylinder 3 416 extends and drives the fan 412 to tilt upwards around the hinge point between the flip frame 411 and the connecting frame 410 (see reference). Figure 10 , 11 When the fan 412 starts, the air drawn in from the outside is blown sideways at an inclined angle toward the surface of the transformer body 20. The fan 412, pointing upwards toward the transformer body 20, allows the air to flow upwards along the side of the transformer body 20, forming a good heat dissipation channel with the top filter 14 on the top of the transformer body 20. This allows hot air to be discharged more smoothly from the exhaust port under the action of the fan 412, while cool air is replenished from the left side of the protective shell 10, forming a continuous air circulation. This ensures the continuity and effectiveness of heat dissipation, thus achieving the effect of effectively dissipating hot air while solving the problem of hot air being drawn into the vicinity of the fan 412.

[0046] Furthermore, a cylinder 413 is fixedly connected to the right side of the hollow tube 405 via a fastener, and a gear plate 414 is fixedly connected to the output end of the cylinder 413; a gear 415 is fixedly connected to the outer right end of the rotating rod 409, and the gear 415 meshes with the gear plate 414.

[0047] In operation, the output of motor 402 drives the threaded rod 403 to rotate, causing the hollow tube 405 and fan 412 to move to the front gap formed by the transformer body 20 and the protective shell 10. The rotation of the output of motor 402 is briefly stopped, and simultaneously, cylinder 3 416 is started via external power. The output of cylinder 3 416 extends, causing fan 412 to tilt upwards. Then, cylinder 2 413 is started via external power. The output of cylinder 2 413 drives gear plate 414 to move downwards. Through the transmission between gear plate 414 and gear 415, rotating rod 409 and fan 412 are rotated forward by 90 degrees at an inclined angle, so that the air outlet of fan 412 faces the front side of transformer body 20 (see reference). Figure 12 , 13This allows air discharged from the outlet of fan 412 to be blown towards a certain area on the front side of transformer body 20. The output of cylinder 407 then drives fan 412 to move up and down reciprocally, increasing the contact area between the outlet of fan 412 and the front side of transformer body 20. Combined with the varying extension and retraction distance of cylinder 416, fan 412, while aligned with the front side of transformer body 20, undergoes a slight left-right reciprocating motion, further increasing the contact area between the outlet of fan 412 and the front side of transformer body 20. This system can effectively dissipate heat from the front surface of the transformer body 20 by side blowing. Furthermore, when the temperature of a certain local area of ​​the transformer body 20 is high, the extension distance of the output end of cylinder 407 can be adjusted to adjust the height of the fan 412, and the angle of the fan 412 can be adjusted by adjusting the extension distance of the output end of cylinder 416, so that the air outlet of the fan 412 blows the air to the high-temperature area of ​​the transformer body 20, thereby achieving the effect of targeted heat dissipation of the high-temperature local area of ​​the transformer body 20. Similarly, the heat dissipation of the rear side of the transformer body 20 can also be achieved in the same way.

[0048] Furthermore, by retracting the output end of cylinder 407, the fan 412 can be moved to the gap formed between the protective shell 10 and the top of the transformer body 20. Then, by starting cylinder 416 with an external power supply, the retraction of the output end of cylinder 416 causes the fan 412 to tilt downwards (see reference). Figure 14 , 15 The air outlet of the fan 412 faces the top surface of the transformer body 20, achieving the effect of localized heat dissipation on the top area of ​​the transformer body 20. The motor 402 drives the threaded rod 403 to rotate, causing the hollow tube 405 and the fan 412 to move horizontally back and forth, achieving the effect of reciprocating heat dissipation on a portion of the top surface of the transformer body 20. Simultaneously, the output end of the cylinder 416 reciprocates within the downward tilt angle of the fan 412, causing the fan 412 to rotate repeatedly within this angle. Combined with the horizontal reciprocating movement of the fan 412, this achieves the effect of reciprocating side-blowing heat dissipation on the entire top surface of the transformer body 20. Furthermore, when a certain area on the top of the transformer body 20 has a high temperature, the motor 402 can drive the fan 412 to move to the corresponding position and stop. Then, the output end of the cylinder 416 can retract, causing the fan 412 to rotate and stop, so that the air outlet of the fan 412 is aimed at this high-temperature area, achieving the effect of targeted heat dissipation on a specific high-temperature area on the top of the transformer body 20.

[0049] refer to Figure 3-5The water cooling mechanism 30 includes a water tank 301 fixedly connected to the protective shell 10. A water pump 302 is fixedly installed on the right side of the water tank 301. The input end of the water pump 302 is fixedly connected to the inside of the water tank 301 through a pipe. The output end of the water pump 302 is fixedly connected to an outlet pipe 303. The rear end of the outlet pipe 303 passes through the surface of the protective shell 10 and a T-shaped pipe 304 is fixedly connected to the rear end of the outlet pipe 303. A liquid cooling pipe 306 is fixedly connected to the left side of the T-shaped pipe 304. The liquid cooling pipe 306 is fixedly connected to the inner surface of the support frame 21 after a bend. Then, the end of the liquid cooling pipe 306 moves out of the support frame 21 and a connector 307 is fixedly connected to the end of the liquid cooling pipe 306. A return water pipe 308 is fixedly connected to the front end of the connector 307. The other end of the return water pipe 308 is fixedly connected to the water tank 301.

[0050] Preferably, a semiconductor cooling chip 309 is fixedly installed on the front side of the water tank 301.

[0051] In use, the semiconductor cooling chip 309 is first activated by an external power supply. The contact end of the semiconductor cooling chip 309 cools the water in the water tank 301 by heat transfer. Then, the hot air is discharged by its own fan, so as to achieve the effect of continuous cooling of the water in the water tank 301. When the outside temperature is high, the heat dissipation effect of the air cooling mechanism 40 is not obvious. In order to reduce the temperature of the transformer body 20. At this time, the water pump 302 is started by an external power supply. The input end of the water pump 302 draws low-temperature water from inside the water tank 301 through a pipe. The water flows through the outlet pipe 303 and then through the T-shaped pipe 304 to the first liquid cooling pipe 305 and the second liquid cooling pipe 306. When the water entering the second liquid cooling pipe 306 flows through the support frame 21, heat is transferred between the support frame 21 and the bottom of the transformer body 20, thereby dissipating heat from the bottom of the transformer body 20 and achieving direct liquid cooling of the transformer body 20. After the water heats up due to the heat transfer between the water and the transformer body 20, it flows back into the water tank 301 through the connector 307 as subsequent water flows in. This achieves a cyclical cooling effect on the transformer body 20.

[0052] Furthermore, a liquid cooling pipe 305 is fixedly connected to the right side of the T-shaped tube 304. The liquid cooling pipe 305 extends to the right and penetrates the left side surface of the protective shell 10, and is located between the two side filters 12. Then, the liquid cooling pipe 305 passes through the surface of the side filters 12 and is fixedly connected to the connector 307. A one-way valve is installed on the liquid cooling pipe 305 and the liquid cooling pipe 306 near the connector 307.

[0053] When the water pump 302 starts, the low-temperature water entering the liquid cooling pipe 305 causes a local temperature drop in the area between the two side filter screens 12. When the fan 412 starts to introduce air from the outside, the low-temperature air will cool down when it passes through the area between the two side filter screens 12 or comes into direct contact with the surface of the liquid cooling pipe 305. As a result, the fan 412 will introduce low-temperature air and blow it onto the surface of the transformer body 20. This, combined with the liquid cooling at the bottom of the transformer body 20, achieves the effect of rapidly cooling the transformer body 20.

[0054] Preferably, the first liquid cooling pipe 305 is arranged longitudinally in an S-shape between the two side filter screens 12, and the second liquid cooling pipe 306 is arranged laterally in an S-shape inside the support frame 21, thereby achieving a large-area contact effect and increasing the cooling effect on the transformer body 20.

[0055] The working principle of this invention is as follows: Fan 412 is started by an external power source. The suction end of fan 412 draws in outside air through the left-side filter 12, and then blows the air directly onto the surface of the transformer body 20, achieving a cooling effect. Furthermore, the surface temperature of the transformer body 20 varies during operation. To dissipate heat from the hotter areas, motor 402 is started by an external power source. The output end of motor 402 drives the threaded rod 403 to rotate. The rotation of the threaded rod 403 causes the moving block 404 and fan 412 to move horizontally. Simultaneously, cylinder 407 is started by an external power source. The output end of cylinder 407 drives the sliding block 406 and fan 412 to move upwards or downwards until the outlet end of fan 412 is directly facing the high-temperature area of ​​the transformer body 20, achieving rapid heat dissipation from the high-temperature area. When large-area heat dissipation is needed for the transformer body 20, the output end of motor 402 drives the threaded rod 403 to rotate, thereby driving the moving block 404 and the fan 412 to move horizontally back and forth. Simultaneously, cylinder 407 is activated, causing its output end to drive the fan 412 to move up and down, allowing the fan 412 to blow air onto a larger area of ​​the transformer body 20 surface, increasing the heat dissipation range and making the heat dissipation more uniform, thus achieving a large-area heat dissipation effect. When it is necessary to quickly expel hot air from the protective shell 10, simply drive the fan 412 to the gap between the protective shell 10 and the transformer body 20, briefly stop the rotation of the motor 402 output end, and only drive the fan 412 up and down through the output end of cylinder 407. This allows the fan 412 to quickly push the hot air from the gap to the right and expel it through the right-side filter screen 12, achieving rapid heat expulsion and effectively reducing the internal temperature of the protective shell 10.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A high-voltage direct current converter transformer, comprising a protective shell (10) and a water-cooling mechanism (30), wherein a support frame (21) is fixedly connected to the bottom inner side of the protective shell (10), and a transformer body (20) is fixedly connected to the top of the support frame (21); characterized in that, A cooling mechanism (40) is provided on the left side of the protective shell (10). The cooling mechanism (40) includes a fixed box (401) fixedly connected to the protective shell (10). The left and right sides of the fixed box (401) are rotatably connected to a threaded rod (403). A moving block (404) is threadedly connected to the outside of the threaded rod (403). A hollow tube (405) is fixedly connected to the front side of the moving block (404). A cylinder (407) is fixedly connected to the inside of the hollow tube (405). A sliding block (406) is fixedly connected to the output end of the cylinder (407). The sliding block (406) is slidably connected to the hollow tube (405). A fan (412) is connected to the sliding block (406) through a flipping assembly. A motor (402) is fixedly connected to the right side of the fixed box (401). The output end of the motor (402) is fixedly connected to the threaded rod (403). The flipping assembly includes a connecting ring (408) fixedly connected to a hollow tube (405). A rotating rod (409) is rotatably connected inside the connecting ring (408) via a bearing. A connecting frame (410) is fixedly connected to the right side of the rotating rod (409). A flipping frame (411) is hinged inside the connecting frame (410) via a hinge. The right side of the flipping frame (411) is fixedly connected to a fan (412). A cylinder (416) is hinged to the right side of the rotating rod (409) via a hinge. The output end of the cylinder (416) is hinged to the fan (412) via a hinge. A cylinder two (413) is fixedly connected to the right side of the hollow tube (405) by a fastener, and a toothed plate (414) is fixedly connected to the output end of the cylinder two (413); a gear (415) is fixedly connected to the right side of the outer side of the rotating rod (409), and the gear (415) meshes with the toothed plate (414).

2. The high-voltage DC converter transformer according to claim 1, characterized in that, The internal cross section of the hollow tube (405) is adapted to the side of the sliding block (406).

3. A high-voltage DC converter transformer according to claim 1, characterized in that, A side filter (12) is fixedly installed on the right side of the protective shell (10); an air inlet groove (22) is opened on the left side of the protective shell (10), and side filters (12) are fixedly connected to the left and right sides of the air inlet groove (22); a groove is opened on the top of the protective shell (10), and a fixed frame (13) is fixedly connected to the top of the groove, and a top filter (14) is fixedly connected to the top of the fixed frame (13), and a waterproof and breathable membrane (15) is provided inside the fixed frame (13).

4. A high-voltage DC converter transformer according to claim 3, characterized in that, The water cooling mechanism (30) includes a water tank (301) fixedly connected to the protective shell (10). A water pump (302) is fixedly installed on the right side of the water tank (301). The input end of the water pump (302) is fixedly connected to the inside of the water tank (301) through a pipe. The output end of the water pump (302) is fixedly connected to a water outlet pipe (303). The rear end of the water outlet pipe (303) passes through the surface of the protective shell (10), and a T-shaped pipe (304) is fixedly connected to the rear end of the water outlet pipe (303). The left side of the T-shaped tube (304) is fixedly connected to a liquid cooling tube (306). The liquid cooling tube (306) is fixedly connected to the inner surface of the support frame (21) after turning. Then, the end of the liquid cooling tube (306) moves out of the support frame (21) and the end of the liquid cooling tube (306) is fixedly connected to a connector (307). The front end of the connector (307) is fixedly connected to a return water pipe (308). The other end of the return water pipe (308) is fixedly connected to the water tank (301).

5. A high-voltage DC converter transformer according to claim 4, characterized in that, A semiconductor cooling chip (309) is fixedly installed on the front side of the water tank (301).

6. A high-voltage DC converter transformer according to claim 4, characterized in that, The right side of the T-tube (304) is fixedly connected to a liquid cooling pipe (305). The liquid cooling pipe (305) extends to the right and penetrates the left side surface of the protective shell (10), and is located between the two side filters (12). Then the liquid cooling pipe (305) passes through the surface of the side filter (12) and is fixedly connected to the connector (307). One-way valves are installed on the liquid cooling pipe (305) and the liquid cooling pipe (306) near the connector (307).

7. A high-voltage DC converter transformer according to claim 6, characterized in that, The first liquid cooling pipe (305) is arranged longitudinally in an S-shape between the two side filters (12), and the second liquid cooling pipe (306) is arranged laterally in an S-shape inside the support frame (21).

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