High-voltage direct-current converter transformer

Abstract

The invention discloses a high-voltage direct-current converter transformer, and particularly relates to the field of transformers, the high-voltage direct-current converter transformer comprises a protective shell, a supporting frame is fixedly connected to the inner bottom side of the protective shell, and a transformer body is fixedly connected to the top of the supporting frame; and an air cooling mechanism is arranged on the left side of the protective shell and comprises a fixed box fixedly connected with the protective shell, and threaded rods are jointly and rotationally connected to the left side and the right side of the interior of the fixed box. A motor is started through an external power supply, the output end of the motor drives a threaded rod to rotate, and the threaded rod rotates to drive a moving block and a fan to horizontally move; meanwhile, the first air cylinder is started through an external power source, and the output end of the first air cylinder drives the sliding block and the fan to move upwards or downwards; by means of the moving mode, the fan can dissipate heat of the transformer at a fixed point, large-area heat dissipation of the transformer can be achieved in a reciprocating mode, hot air at the vacant position of the shell can be rapidly guided out, and therefore the efficient heat dissipation effect of the transformer is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, in particular to a high-voltage direct current converter transformer. Background Art

[0002] The DC converter transformer is mainly used for DC power conversion and control in the DC transmission system. It can connect the AC transmission system with the DC transmission system to achieve the reliability and efficiency of long-distance high-voltage DC transmission. By controlling the conduction and cutoff of switching elements such as thyristors, the DC converter transformer can realize the conversion and regulation of DC voltage.

[0003] When the transformer body is working, its own temperature rises, and at the same time, the temperature inside the protective shell becomes high, and there is also the problem that the hot air is difficult to be discharged quickly. The common air cooling device is fixed in position and can only perform air cooling and heat dissipation on a certain area of ​​the transformer, and the heat dissipation effect is not good. Therefore, the inventor provides a high-voltage DC converter transformer to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide a high-voltage direct current converter transformer to achieve the effect of efficient heat dissipation of the transformer.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A high-voltage direct current converter transformer comprises a protective shell, wherein a support frame is fixedly connected to the inner bottom side of the protective shell, and a transformer body is fixedly connected to the top of the support frame; an air cooling mechanism is arranged on the left side of the protective shell, and the air cooling mechanism comprises a fixing box fixedly connected to the protective shell, and threaded rods are rotatably connected to the left and right sides of the fixing box, a moving block is threadedly connected to the outer side of the threaded rod, a hollow tube is fixedly connected to the front side of the moving block, a cylinder 1 is fixedly connected to the inner side of the hollow tube, a sliding block is fixedly connected to the output end of the cylinder 1, the sliding block is slidably connected to the hollow tube, and the sliding block is connected to a fan through a flip assembly; a motor is fixedly connected to the right side of the fixing box, and the output end of the motor is fixedly connected to the threaded rod.

[0006] As a further solution of the present invention: the inner cross section of the hollow tube is adapted to the side surface of the sliding block.

[0007] As a further solution of the present invention: the flip assembly includes a connecting ring fixedly connected to the hollow tube, the interior of the connecting ring is rotatably connected to a rotating rod via a bearing, the right side of the rotating rod is fixedly connected to a connecting frame, the interior of the connecting frame is hinged with a flip frame via a hinge, and the right side of the flip frame is fixedly connected to the fan; the right side of the rotating rod is hinged to cylinder three via a hinge, and the output end of cylinder three is hinged to the fan via a hinge.

[0008] As a further solution of the present invention: the right side of the hollow tube is fixedly connected to cylinder 2 via a fixing member, and the output end of cylinder 2 is fixedly connected to a toothed plate; the outer right end of the rotating rod is fixedly connected to a gear, and the gear is meshed with the toothed plate.

[0009] As a further solution of the present invention: a side filter is fixedly installed on the right side of the protective shell; an air inlet groove is provided on the left side of the protective shell, and the left and right sides of the air inlet groove are respectively fixedly connected with side filters; a groove body is provided on the top of the protective shell, a fixed frame is fixedly connected to the top of the groove body, a top filter is fixedly connected to the top of the fixed frame, and a waterproof breathable membrane is provided inside the fixed frame.

[0010] As a further scheme of the present invention: the water cooling mechanism includes a water tank fixedly connected to the protective shell, a water pump is fixedly installed on the right side of the water tank, the input end of the water pump is fixedly connected to the inside of the water tank through a pipeline, the output end of the water pump is fixedly connected to a water outlet pipe, the rear end of the water outlet pipe passes through the surface of the protective shell and the rear end of the water outlet pipe is fixedly connected to a T-tube, the left side of the T-tube is fixedly connected to a second liquid cooling tube, the second liquid cooling tube is fixedly connected to the inner surface of the support frame after turning, and then the second end of the liquid cooling tube moves out of the support frame and the end of the second liquid cooling tube is fixedly connected to a connector, the front end of the connector is fixedly connected to a return pipe, and the other end of the return pipe is fixedly connected to the water tank.

[0011] As a further solution of the present invention: a semiconductor refrigeration plate is fixedly installed on the front side of the water tank.

[0012] As a further solution of the present invention: a liquid cooling pipe 1 is fixedly connected to the right side of the T-tube, and the liquid cooling pipe 1 extends to the right through the left side surface of the protective shell and is located between the two side filters, and then the liquid cooling pipe 1 repeatedly passes through the surface of the side filter and is fixedly connected to the connector, and a one-way valve is installed near the connector between the liquid cooling pipe 1 and the liquid cooling pipe 2.

[0013] As a further solution of the present invention: the liquid cooling tube 1 is arranged longitudinally in an S shape between the two side filter screens, and the liquid cooling tube 2 is arranged transversely in an S shape inside the support frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The high-voltage direct current converter transformer starts a motor through an external power supply, and the output end of the motor drives the threaded rod to rotate, and the rotation of the threaded rod drives the moving block and the fan to move horizontally; at the same time, the cylinder one is started through the external power supply, and the output end of the cylinder one drives the sliding block and the fan to move upward or downward; through the above-mentioned movement mode, the fan can dissipate heat to the transformer at a fixed point, and can also dissipate heat to the transformer over a large area in a reciprocating manner, and can also quickly guide the hot air out of the vacant part of the shell, so as to achieve the effect of efficient heat dissipation of the transformer.

[0015] In addition, the high-voltage DC converter transformer first cools the water source in the water tank through the semiconductor cooling sheet, and then absorbs the low-temperature water source inside the water tank through the water pump. The water source flows through the outlet pipe and the T-shaped pipe to the liquid cooling pipe 1 and the liquid cooling pipe 2. When the water source entering the liquid cooling pipe 2 flows through the support frame, it transfers heat through the support frame and the bottom of the transformer body, driving the heat at the bottom of the transformer body, thereby achieving the effect of direct liquid cooling of the transformer body. After the heat transfer between the water source and the transformer body, the temperature rises and flows back to the inside of the water tank through the connector as the subsequent water source pushes it. Thus, the effect of circulating cooling of the transformer body is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a high-voltage DC converter transformer; Figure 2 It is a schematic diagram of the overall structural section of a high-voltage DC converter transformer; Figure 3 It is a schematic diagram of the structure of a water cooling mechanism in a high voltage DC converter transformer; Figure 4 It is a schematic diagram of the overall structure cross section of a high-voltage DC converter transformer; Figure 5 It is a schematic diagram of the structure of another state of a water cooling mechanism in a high-voltage DC converter transformer; Figure 6 It is a schematic diagram of the structure of an air cooling mechanism in a high voltage DC converter transformer; Figure 7 It is a schematic diagram of the cross-sectional structure of an air cooling mechanism in a high-voltage DC converter transformer; Figure 8 It is a structural schematic diagram of another perspective of the cross section of an air cooling mechanism in a high-voltage DC converter transformer; Fig. 9 A high voltage DC converter transformer Figure 7 A schematic diagram of the structure enlargement in the middle; Fig.10 It is a schematic diagram of the structure of a fan in a high-voltage DC converter transformer in a first tilt state; Fig.11 A high voltage DC converter transformer Fig.10Center view of the air outlet diagram; Fig.12 It is a schematic diagram of the structure of the second tilt state of air cooling in a high-voltage DC converter transformer; Fig.13 A high voltage DC converter transformer Fig.11 Schematic diagram of the wind outlet from above; Fig.14 A schematic diagram of the third tilt state structure of an air-cooled high-voltage DC converter transformer; Fig.15 A high voltage DC converter transformer Fig.12 Center view of the air outlet diagram.

[0017] In the figure: 10, protective shell; 11, closed door; 12, side filter; 13, fixed frame; 14, top filter; 15, waterproof 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 1; 306, liquid cooling pipe 2; 307, connector; 308, water return pipe ; 309, semiconductor refrigeration plate; 40, air cooling mechanism; 401, fixed box; 402, motor; 403, threaded rod; 404, moving block; 405, hollow tube; 406, sliding block; 407, cylinder one; 408, connecting ring; 409, rotating rod; 410, connecting frame; 411, flip frame; 412, fan; 413, cylinder two; 414, tooth plate; 415, gear; 416, cylinder three. DETAILED DESCRIPTION

[0018] 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 inner bottom side of the protective shell 10, and a transformer body 20 is fixedly connected to the top of the support frame 21; a side filter 12 is fixedly installed on the right side of the protective shell 10; and an air cooling mechanism 40 is arranged on the left side of the protective shell 10.

[0019] The transformer body 20 is a DC converter transformer. In a high-voltage DC transmission system, the converter transformer converts the AC transmission system into a DC transmission system to achieve long-distance, large-capacity power transmission. After the AC power is converted into DC power by a rectifier, it is controlled and regulated by the converter transformer and finally supplied to the power grid or user end.

[0020] Preferably, an air inlet slot 22 is provided on the left side of the protective shell 10, and the left and right sides of the air inlet slot 22 are respectively fixedly connected with side filters 12; a slot body is provided on the top of the protective shell 10, a fixed frame 13 is fixedly connected to the top of the slot body, a top filter 14 is fixedly connected to the top of the fixed frame 13, and a waterproof breathable membrane 15 is provided inside the fixed frame 13. When the transformer body 20 is working, a large amount of heat will be emitted when the internal components are activated. In order to allow the transformer to operate in a suitable temperature environment, the heat dissipated by the heat needs to be discharged. Therefore, filters are provided on three sides to facilitate the exchange of air between the inside of the protective shell 10 and the outside world; and in order to prevent rainwater and dust from entering the inside of the protective shell 10, a top filter 14 and a waterproof breathable membrane 15 are provided.

[0021] refer to Figure 6-15 The air cooling mechanism 40 includes a fixed box 401 fixedly connected to the protective shell 10, and the left and right sides of the interior of the fixed box 401 are rotatably connected with a threaded rod 403, and the outer side of the threaded rod 403 is threadedly connected with a moving block 404, and the front side of the moving block 404 is fixedly connected with a hollow tube 405, and the inner side of the hollow tube 405 is fixedly connected with a cylinder 1 407, and the output end of the cylinder 1 407 is fixedly connected with a sliding block 406, and the sliding block 406 is slidably connected to the hollow tube 405, and the sliding block 406 is connected to a fan 412 through a flip assembly; the right side of the fixed box 401 is fixedly connected with a motor 402, and the output end of the motor 402 is fixedly connected to the threaded rod 403.

[0022] Preferably, the inner cross-section of the hollow tube 405 is matched with the side surface of the sliding block 406, so as to achieve the effect of guiding the sliding block 406 when it moves.

[0023] When the transformer body 20 is working, its own temperature rises, and at the same time, the temperature inside the protective shell 10 becomes high, and there is also a problem that the hot air is difficult to be discharged quickly. The common air cooling device is fixed in position and can only perform air cooling and heat dissipation on a certain area of ​​the transformer, and the heat dissipation effect is not good; therefore, an air cooling mechanism 40 is proposed.

[0024] When in use, the fan 412 is started by an external power supply, and the air suction end of the fan 412 introduces outside air through the side filter 12 on the left, and then blows the sucked air directly to the surface of the transformer body 20, thereby achieving the effect of cooling the transformer body 20.

[0025] Moreover, when the transformer body 20 is in use, its surface temperature is not uniform, in order to dissipate heat in the area with higher temperature; therefore, the motor 402 is started by an external power supply, and the output end of the motor 402 drives the threaded rod 403 to rotate, and the rotation of the threaded rod 403 drives the moving block 404 and the fan 412 to move horizontally. At the same time, the cylinder 407 is started by an external power supply, and the output end of the cylinder 407 drives the sliding block 406 and the fan 412 to move upward or downward until the air outlet end of the fan 412 is moved directly to the high temperature area of ​​the transformer body 20, thereby achieving the effect of quickly dissipating heat in the high temperature area.

[0026] When the heat is dissipated over a large area of ​​the transformer body 20, the output end of the motor 402 can be used to drive the threaded rod 403 to rotate, thereby driving the moving block 404 and the fan 412 to move horizontally back and forth, and starting the cylinder 407, so that the output end of the cylinder 407 drives the fan 412 to move up and down back and forth, so that the air outlet of the fan 412 can blow to a larger area of ​​the transformer body 20 surface, thereby 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.

[0027] When the hot air from the protective shell 10 needs to be discharged quickly, it is only necessary to drive the output end of the motor 402 to move the fan 412 to the gap between the protective shell 10 and the transformer body 20, and then temporarily stop the rotation of the output end of the motor 402. Only the output end of the cylinder 407 is used to drive the fan 412 to move up and down, so that the fan 412 can quickly drive the hot air in the gap to the right and discharge it through the side filter 12 on the right, thereby achieving the effect of quickly discharging the hot air and effectively reducing the temperature inside the protective shell 10.

[0028] Furthermore, the flip assembly includes a connecting ring 408 fixedly connected to the hollow tube 405, the interior of the connecting ring 408 is rotatably connected to a rotating rod 409 through a bearing, the right side of the rotating rod 409 is fixedly connected to a connecting frame 410, the interior of the connecting frame 410 is hinged with a flip frame 411 through a hinge, and the right side of the flip frame 411 is fixedly connected to a fan 412; the right side of the rotating rod 409 is hinged with a cylinder three 416 through a hinge, and the output end of the cylinder three 416 is hinged to the fan 412 through a hinge.

[0029] Since the fan 412 is close to the transformer body 20, when the fan 412 is in use, it blows directly to the surface of the transformer body 20, which may cause the hot air on the surface of the transformer body 20 to be pushed by the air blown by the fan 412, so that the hot air is blown to the fan 412, which will increase 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, the cylinder 3 416 is started by an external power supply, and the output end of the cylinder 3 416 extends to drive the fan 412 to tilt upward with the hinge of the flip frame 411 and the connecting frame 410 as the center (refer to Fig.10 , 11 ); when the fan 412 is started, the air introduced from the outside is blown sideways to the surface of the transformer body 20 at an inclined angle, and the fan 412 blows upward to the transformer body 20, so that the air can flow upward along the side of the transformer body 20, and form a good heat dissipation channel between the top filter 14 on the top of the transformer body 20. The hot air is discharged more smoothly from the exhaust hole under the action of the fan 412, while the cold air is supplemented from the left side of the protective shell 10, forming a continuous air circulation, ensuring the continuity and effectiveness of heat dissipation, thereby achieving the effect of effectively discharging hot air and solving the problem of hot air being introduced around the fan 412.

[0030] Furthermore, the right side of the hollow tube 405 is fixedly connected to a cylinder 2 413 via a fixing member, and the output end of the cylinder 2 413 is fixedly connected to a toothed plate 414; the outer right end of the rotating rod 409 is fixedly connected to a gear 415, and the gear 415 is meshed with the toothed plate 414.

[0031] When in use, the threaded rod 403 is driven to rotate by the output end of the motor 402, so that the hollow tube 405 and the fan 412 are moved to the front gap formed by the transformer body 20 and the protective shell 10, and the rotation of the output end of the motor 402 is temporarily stopped, and the cylinder 3 416 is started by the external power supply at the same time, and the output end of the cylinder 3 416 extends to drive the fan 412 to tilt upward, and then the cylinder 2 413 is started by the external power supply, and the output end of the cylinder 2 413 drives the tooth plate 414 to move downward, so that the rotating rod 409 and the fan 412 are turned forward 90 degrees at an inclined angle through the transmission of the tooth plate 414 and the gear 415, so that the air outlet end of the turned fan 412 faces the front side of the transformer body 20 (reference Fig.12 , 13), so that the air discharged from the air outlet of the fan 412 blows to a certain area of ​​the front side of the transformer body 20, and then the fan 412 is driven to move up and down by the output end of the cylinder 1 407, thereby increasing the contact area of ​​the air outlet of the fan 412 blowing to the front side of the transformer body 20, and then in conjunction with the change of the telescopic distance of the output end of the cylinder 3 416, the air outlet of the fan 412 is aligned with the front side of the transformer body 20 and then turned back and forth slightly to the left and right, thereby further increasing the contact area between the air outlet of the fan 412 and the front side of the transformer body 20 , which can effectively dissipate the heat from the front side of the transformer body 20; and when the local temperature of a certain part of the transformer body 20 is high, the extension distance of the output end of the cylinder 1 407 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 the cylinder 3 416, so that the air outlet end of the fan 412 is fixedly blown to the high-temperature area of ​​the transformer body 20, thereby achieving the effect of fixed-point 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 as above.

[0032] Moreover, the output end of the cylinder 1 407 can be retracted to move the fan 412 to the gap formed by the protective shell 10 and the top of the transformer body 20, and then the cylinder 3 416 can be started by an external power supply, and the output end of the cylinder 3 416 can be retracted to drive the fan 412 to tilt downward (refer to Fig.14 , 15 ), so that the air outlet end of the fan 412 faces the top surface of the transformer body 20, so as to achieve the effect of heat dissipation of the local area on the top of the transformer body 20; then the motor 402 drives the threaded rod 403 to rotate, so that the hollow tube 405 and the fan 412 move back and forth horizontally, so as to achieve the effect of reciprocating heat dissipation of the surface of the top part of the transformer body 20; at the same time, the output end of the cylinder three 416 reciprocates and retracts within the downward tilt angle of the fan 412, so that the fan 412 reciprocates within the downward tilt angle range, and cooperates with the horizontal reciprocating movement of the fan 412 to achieve the effect of reciprocating side blowing heat dissipation of the full surface of the top of the transformer body 20. At the same time, when the temperature of a certain area on the top of the transformer body 20 is high, the fan 412 can be driven by the motor 402 to move to the corresponding position and stay, and then the output end of the cylinder three 416 is contracted to make the fan 412 flip and stay, so that the air outlet end of the fan 412 is aimed at this high temperature area, and the effect of fixed-point heat dissipation of a certain high temperature area on the top of the transformer body 20 can be achieved.

[0033] 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 pipeline, the output end of the water pump 302 is fixedly connected to a water outlet pipe 303, the rear side end of the water outlet pipe 303 passes through the surface of the protective shell 10 and the rear end of the water outlet pipe 303 is fixedly connected to a T-shaped pipe 304, the left side of the T-shaped pipe 304 is fixedly connected to a second liquid cooling pipe 306, the second liquid cooling pipe 306 is fixedly connected to the inner surface of the support frame 21 after turning, and then the end of the second liquid cooling pipe 306 moves out of the support frame 21 and the end of the second liquid cooling pipe 306 is fixedly connected to a connector 307, the front side end of the connector 307 is fixedly connected to a return pipe 308, and the other end of the return pipe 308 is fixedly connected to the water tank 301.

[0034] Preferably, a semiconductor cooling plate 309 is fixedly installed on the front side of the water tank 301 .

[0035] When in use, first start the semiconductor refrigeration sheet 309 through an external power supply, and the contact end of the semiconductor refrigeration sheet 309 cools the water source in the water tank 301 by heat transfer, and then discharges the hot air through its own fan to achieve the effect of continuously cooling the water source inside 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, and the input end of the water pump 302 absorbs the low-temperature water source inside the water tank 301 through the pipeline. The water source flows through the outlet pipe 303 and the T-shaped pipe 304 and then flows to the liquid cooling pipe 1 305 and the liquid cooling pipe 2 306. When the water source entering the liquid cooling pipe 2 306 flows through the support frame 21, it conducts heat transfer with the bottom of the transformer body 20 through the support frame 21, driving the heat at the bottom of the transformer body 20, thereby achieving the effect of direct liquid cooling of the transformer body 20. After the heat transfer between the water source and the transformer body 20, the temperature rises and flows back to the inside of the water tank 301 through the connector 307 with the subsequent water source. Thus, the effect of cooling the transformer body 20 by circulation is achieved.

[0036] Furthermore, a liquid cooling pipe 305 is fixedly connected to the right side of the T-tube 304. The liquid cooling pipe 305 extends to the right through the left side surface of the protective shell 10 and is located between the two side filters 12. The liquid cooling pipe 305 then passes through the surface of the side filter 12 and is fixedly connected to the connector 307. A one-way valve is installed between the liquid cooling pipe 305 and the liquid cooling pipe 2 306 near the connector 307.

[0037] When the water pump 302 is started, the low-temperature water source entering the liquid cooling tube 305 is the local temperature of the area between the two side filters 12, and when the fan 412 is started to introduce air from the outside, the low-temperature air will cool down when passing through the area between the two side filters 12 or directly contacting the surface of the liquid cooling tube 305. Therefore, the fan 412 will introduce the low-temperature air to the surface of the transformer body 20, and cooperate with the liquid cooling of the bottom of the transformer body 20 to achieve the effect of quickly cooling the transformer body 20.

[0038] Preferably, the liquid cooling tube 1 305 is arranged longitudinally in an S shape between the two side filters 12, and the liquid cooling tube 2 306 is arranged transversely in an S shape inside the support frame 21, thereby achieving a large-area contact effect, thereby increasing the cooling effect on the transformer body 20.

[0039] The working principle of the present invention is: the fan 412 is started by an external power supply, the air suction end of the fan 412 introduces outside air through the side filter 12 on the left, and then the inhaled air is blown directly to the surface of the transformer body 20, so as to achieve the effect of cooling the transformer body 20. And when the transformer body 20 is working, its surface temperature is not uniform, in order to dissipate heat in the area with higher temperature; therefore, the motor 402 is started by an external power supply, the output end of the motor 402 drives the threaded rod 403 to rotate, and the rotation of the threaded rod 403 drives the moving block 404 and the fan 412 to move horizontally, and at the same time, the cylinder 1 407 is started by an external power supply, and the output end of the cylinder 1 407 drives the sliding block 406 and the fan 412 to move upward or downward, until the air outlet end of the fan 412 is moved directly to the high temperature area of ​​the transformer body 20, so as to achieve the effect of rapid heat dissipation in the high temperature area. When the transformer body 20 is to be cooled over a large area, the output end of the motor 402 can be used to 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 can be started, so that the output end of the cylinder 407 drives the fan 412 to move up and down, so that the air outlet of the fan 412 can blow to a larger area on the surface of the transformer body 20, increase the cooling range of the transformer body 20, and heat the fan more evenly, thereby achieving a large-area cooling effect. When it is necessary to quickly discharge the hot air from the protective shell 10, it is only necessary to drive the output end of the motor 402 to move the fan 412 to the gap between the protective shell 10 and the transformer body 20, and then temporarily stop the rotation of the output end of the motor 402, and only drive the fan 412 up and down through the output end of the cylinder 407, so that the fan 412 can quickly drive the hot air in the gap to the right and discharge it through the side filter 12 on the right, thereby achieving the effect of quickly discharging the hot air, and effectively reducing the temperature inside the protective shell 10.

[0040] The above shows and describes 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, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A high-voltage direct current converter transformer, comprising a protective shell (10), wherein a support frame (21) is fixedly connected to the bottom side of the inner part of the protective shell (10), and a transformer body (20) is fixedly connected to the top of the support frame (21); characterized in that: An air cooling mechanism (40) is arranged on the left side of the protective shell (10), and the air cooling mechanism (40) comprises a fixed box (401) fixedly connected to the protective shell (10), the left and right sides of the interior of the fixed box (401) are rotatably connected to threaded rods (403), the outer side of the threaded rod (403) is threadedly connected to a moving block (404), the front side of the moving block (404) is fixedly connected to a hollow tube (405), the inner side of the hollow tube (405) is fixedly connected to a cylinder 1 (407), the output end of the cylinder 1 (407) is fixedly connected to a sliding block (406), the sliding block (406) is slidably connected to the hollow tube (405), and the sliding block (406) is connected to a fan (412) via a flip assembly; the right side of the fixed box (401) is fixedly connected to a motor (402), and the output end of the motor (402) is fixedly connected to the threaded rod (403).

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

3. A high voltage DC converter transformer according to claim 1, characterized in that: The turnover assembly comprises a connecting ring (408) fixedly connected to the hollow tube (405); a rotating rod (409) is rotatably connected to the interior of the connecting ring (408) via a bearing; a connecting frame (410) is fixedly connected to the right side of the rotating rod (409); a turnover frame (411) is hingedly connected to the interior of the connecting frame (410) via a hinge; the right side of the turnover frame (411) is fixedly connected to a fan (412); a cylinder three (416) is hingedly connected to the right side of the rotating rod (409) via a hinge; and an output end of the cylinder three (416) is hingedly connected to the fan (412) via a hinge.

4. A high voltage DC converter transformer according to claim 3, characterized in that: The right side of the hollow tube (405) is fixedly connected to a second cylinder (413) via a fixing member, and the output end of the second cylinder (413) is fixedly connected to a toothed plate (414); the outer right end of the rotating rod (409) is fixedly connected to a gear (415), and the gear (415) is meshed with the toothed plate (414).

5. The high-voltage direct current converter transformer according to claim 1, characterized in that: A side filter (12) is fixedly mounted on the right side of the protective shell (10); an air inlet groove (22) is provided on the left side of the protective shell (10), and the side filter (12) is fixedly connected to the left and right sides of the air inlet groove (22); a groove body is provided on the top of the protective shell (10), a fixing frame (13) is fixedly connected to the top of the groove body, a top filter (14) is fixedly connected to the top of the fixing frame (13), and a waterproof breathable membrane (15) is provided inside the fixing frame (13).

6. The high-voltage direct current converter transformer according to claim 1, characterized in that: The water cooling mechanism (30) comprises 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); an input end of the water pump (302) is fixedly connected to the inside of the water tank (301) via a pipeline; an output end of the water pump (302) is fixedly connected to a water outlet pipe (303); a 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-tube (304) is fixedly connected to a second liquid cooling tube (306), and the second liquid cooling tube (306) is fixedly connected to the inner surface of the support frame (21) after being turned, and then the end of the second liquid cooling tube (306) moves out of the support frame (21) and the end of the second liquid cooling tube (306) is fixedly connected to a connector (307), and the front side end of the connector (307) is fixedly connected to a return water pipe (308), and the other end of the return water pipe (308) is fixedly connected to the water tank (301).

7. A high voltage DC converter transformer according to claim 6, characterized in that: A semiconductor cooling plate (309) is fixedly mounted on the front side of the water tank (301).

8. The high-voltage direct current converter transformer according to claim 6, characterized in that: The right side of the T-tube (304) is fixedly connected to a liquid cooling tube 1 (305), which extends to the right and penetrates the left side surface of the protective shell (10) and is located between the two side filters (12). The liquid cooling tube 1 (305) then passes through the surface of the side filter (12) and is fixedly connected to the connector (307), and a one-way valve is installed between the liquid cooling tube 1 (305) and the liquid cooling tube 2 (306) near the connector (307).

9. The high-voltage direct current converter transformer according to claim 8, characterized in that: The liquid cooling tube 1 (305) is arranged longitudinally in an S shape between the two side filter screens (12), and the liquid cooling tube 2 (306) is arranged transversely in an S shape inside the support frame (21).

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