Lightweight composite cooling device for motor train unit transformer

Abstract

The lightweight composite cooling device comprises a cooler main body and an outer frame, the cooler main body is located in the outer frame, the lower end of the outer frame is fixedly connected with a support, and the upper end of the outer frame is fixedly connected with an upper housing. According to the light-weight composite cooling device for the motor train unit transformer, when the cooling fan does not operate and the side moving frame moves on the two sides of the upper housing, the cleaning brush can clean the cooling fan at the upper end of the upper housing, and dust, catkin and other blockages in gaps of the cooling fan can be removed regularly or as required; the suction pump can provide suction force to suck out blockages such as dust and catkins in the upper housing, the blockages enter the inner side of the dust collection box through the suction hopper and the conveying hose, and then the dust collection box is pulled from the interior of the collection box to be cleaned.

Description

Technical Field

[0001] This invention relates to the technical field of cooling devices for EMU transformers, specifically a lightweight composite cooling device for EMU transformers. Background Technology

[0002] The transformer cooling system of a high-speed train is a key auxiliary system for dissipating heat from the traction transformer. The traction transformer is the heart of the high-speed train, responsible for converting the high-voltage electricity from the overhead contact line into the voltage required by various systems of the train. It generates a lot of heat during operation. If it is not dissipated in time, it will lead to insulation aging, reduced efficiency, or even burnout, causing train accidents. Although it does not directly participate in traction drive, it is a key prerequisite for ensuring that the powerful power of the high-speed train can be continuously and safely released. Its performance directly affects the train's operational safety, efficiency, and service life, and it is an indispensable and important component of high-speed rail technology.

[0003] When using common high-speed train transformer cooling devices, the high-speed train will inhale a large amount of pollutants such as dust, willow catkins, and insects. These impurities will adhere firmly to the gaps between the cooling fans, and the dust layer is like a blanket covering the cooling fans, which seriously hinders the heat exchange efficiency. As a result, the transformer oil temperature cannot be effectively reduced, and it will continue to operate at high temperature. Long-term high-temperature operation will accelerate the aging and embrittlement of the transformer's internal insulation, shorten its service life, greatly increase the risk of failure and the cost of premature scrapping, and bring certain adverse effects to the use process. To this end, we propose a lightweight composite cooling device for high-speed train transformers. Summary of the Invention

[0004] Technical Problem Solved: Addressing the shortcomings of existing technologies, this invention provides a lightweight composite cooling device for high-speed train transformers. It offers advantages such as periodically or as needed removing dust, fluff, and other blockages from the cooling fan gaps, ensuring the cooling fan remains in a consistently efficient ventilation state. A control moving block is fitted onto the outer wall of a moving adjusting rod through a through-threaded hole, positioning the side moving frame on both sides of the upper cover. A first control motor drives the moving adjusting rod to rotate inside the moving control slot, causing the control moving block to move on the outer wall of the moving adjusting rod, simultaneously moving the side moving frame. A second control motor drives a rotating connecting rod, which in turn rotates the cleaning brush. Bearings facilitate the rotation of the rotating connecting rod on the inner wall of the side moving frame. When the cooling fan is not running, and the side moving frame moves on both sides of the upper cover, the cleaning brush cleans the cooling fan at the top of the upper cover, periodically or as needed removing dust, fluff, and other blockages from the cooling fan gaps, ensuring efficient ventilation. It maintains efficient ventilation at all times, reducing overheating shutdowns caused by poor heat dissipation. The suction nozzle is inserted into the inner wall of the dust collection port and positioned against the upper cover by a limiting and fixing plate. An anti-slip sealing strip on the outer wall of the suction nozzle enhances the seal. One end of the transmission hose is positioned with the suction bucket via a connector, while the other end connects to the suction pump, which provides suction power. When the cooling fan is not running, it can suck out dust, catkins, and other blockages from inside the upper cover, which are then drawn into the inner side of the dust collection box through the suction bucket and transmission hose. The dust collection box can then be pulled out of the collection box for cleaning. With unobstructed radiator operation, the cooling fan does not need to operate at high load for extended periods, significantly reducing wear on the fan motor and bearings, and simultaneously improving their service life and reliability, creating a virtuous cycle. At the same time, it replaces frequent and intensive manual cleaning, saving costs. The sealing anti-slip strip on the outer wall of the dust collection box enhances anti-slip and sealing performance, effectively solving the problems mentioned in the background technology.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by the present invention is as follows: a lightweight composite cooling device for EMU transformers, comprising a cooler body and an outer frame, wherein the cooler body is located inside the outer frame, a support is fixedly connected to the lower end of the outer frame, an upper cover is fixedly connected to the upper end of the outer frame, a cooling fan is positioned and installed on the inner wall of the upper end of the upper cover, a movable control slot is provided on both sides of the upper cover, a first control motor is fixedly connected to both sides of one end of the upper cover, and a movable adjustment rod is movably connected to the inner side of the movable control slot.

[0006] Preferably, the upper end of each support is fixedly connected to the lower end of the outer frame, the lower end of the upper cover is fixedly connected to the upper end of the outer frame, the cooling fan is embedded in the inner wall of the upper cover and fixed therein, one end of the first control motor is fixedly connected to both sides of one end of the upper cover, and one end of the movable adjustment rod passes through the inner wall of the movable control slot and is connected to the first control motor.

[0007] Preferably, side movable frames are movably installed on both sides of the upper cover. A control movable block is fixedly connected to the lower end of one side of the side movable frame. A through threaded hole is opened on the inner wall of the control movable block. A bearing is fixedly connected to the upper end of the inner wall of the side movable frame. A rotating connecting rod is fixedly connected to the inner wall of the bearing. A cleaning brush is fixedly connected to the outer wall of the rotating connecting rod. A second control motor is fixedly connected to one side of the side movable frame.

[0008] Preferably, there are two sets of side moving frames. One end of the second control motor is fixed to one side of one set of side moving frames by bolts. One side of the control moving block is fixedly connected to the lower end of one side of the side moving frame. The control moving block is sleeved on the outer wall of the moving adjustment rod through a through threaded hole.

[0009] Preferably, the outer wall of the bearing is fixedly connected to the inner wall of the side movable frame, the outer walls of both ends of the rotating connecting rod are fixedly connected to the inner wall of the bearing, one end of the rotating connecting rod passes through the bearing and is movably connected to the second control motor, and the inner wall of the cleaning brush is fixedly connected to the outer wall of the rotating connecting rod.

[0010] Preferably, a dust removal port is provided at one end of the upper cover, a collection box is fixedly connected to the rear end of the outer frame, a dust collection box is positioned and installed on the inner wall of the collection box, a suction pump is fixedly connected to one end of the dust collection box, and a sealing anti-slip strip is fixedly connected to the outer wall of one end of the dust collection box.

[0011] Preferably, a suction nozzle is positioned and installed on the inner wall of the dust removal port, an anti-slip sealing strip is fixedly connected to the outer wall of the suction nozzle, a limit fixing plate is fixedly connected to the outer wall of one end of the suction nozzle, a suction bucket is fixedly connected to one end of the suction nozzle, a connection port is opened on the inner wall of the suction bucket, and a transmission hose is fixedly connected between the suction bucket and the suction pump.

[0012] Preferably, one side of the collection box is fixedly connected to the rear end of the outer frame, the outer wall of the dust collection box is movably connected to the inner wall of the collection box, one end of the suction pump is fixed to the upper end of one end of the dust collection box by bolts, and one side of the sealing anti-slip strip is attached and positioned to the outer wall of the dust collection box by strong adhesive.

[0013] Preferably, one side of the anti-slip sealing strip is bonded and positioned to the outer wall of the suction nozzle by strong adhesive; the inner wall of the limiting and fixing plate is fixedly connected to the outer wall of one end of the suction nozzle; the suction nozzle is inserted into the inner wall of the dust removal port and positioned by the limiting and fixing plate; one end of the suction bucket is fixedly connected to one end of the suction nozzle; one end of the transmission hose is connected to the suction bucket through a connection port; and the other end of the transmission hose is fixedly connected to one end of the suction pump.

[0014] Beneficial Effects: Compared with the prior art, the present invention provides a lightweight composite cooling device for EMU transformers, which has the following beneficial effects: In this lightweight composite cooling device for EMU transformers, the control moving block is sleeved on the outer wall of the moving adjusting rod through the through threaded hole, so that the side moving frame is positioned on both sides of the upper cover. The first control motor drives the moving adjusting rod to rotate inside the moving control slot, so that the control moving block moves on the outer wall of the moving adjusting rod, and at the same time, it can drive the side moving frame to move. The second control motor drives the rotating connecting rod to drive the cleaning brush to rotate. Through the action of the bearing, the rotating connecting rod can rotate more easily on the inner wall of the side moving frame. When the cooling fan is not running, when the side moving frame moves on both sides of the upper cover, the cleaning brush can clean the cooling fan at the upper end of the upper cover. It can periodically or as needed remove dust, catkins and other blockages in the gaps of the cooling fan, so that it is always in a state of efficient ventilation and reduce the overheat protection shutdown accident caused by poor heat dissipation.

[0015] This lightweight composite cooling device for EMU transformers features a suction nozzle inserted into the inner wall of the dust removal port and positioned against the upper cover by a limiting and fixing plate. An anti-slip sealing strip on the outer wall of the suction nozzle enhances sealing. One end of the transmission hose is positioned to the suction bucket via a connector, while the other end connects to a suction pump. The suction pump provides suction, allowing dust, catkins, and other blockages inside the upper cover to be sucked out when the cooling fan is not running. These materials are then fed into the dust collection box via the suction bucket and transmission hose. The dust collection box can then be pulled out for cleaning. This design ensures unobstructed radiator operation, eliminating the need for prolonged high-load operation of the cooling fan. This significantly reduces wear on the fan motor and bearings, improving their lifespan and reliability, creating a virtuous cycle. Furthermore, it replaces frequent and intensive manual cleaning, saving costs. The anti-slip sealing strip on the outer wall of the dust collection box enhances anti-slip and sealing performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a lightweight composite cooling device for a high-speed train transformer according to the present invention.

[0017] Figure 2 This is a schematic diagram of removing the side moving frame and cleaning brush in a lightweight composite cooling device for EMU transformers according to the present invention.

[0018] Figure 3 This is a schematic diagram showing the removal of the cleaning brush in a lightweight composite cooling device for EMU transformers according to the present invention.

[0019] Figure 4 This is a schematic diagram showing the disassembled cleaning brush and side moving frame in a lightweight composite cooling device for EMU transformers according to the present invention.

[0020] Figure 5This is a schematic diagram showing the disassembly of the suction bucket and the transmission hose in a lightweight composite cooling device for EMU transformers according to the present invention.

[0021] Figure 6 This is a schematic diagram of the dust collection box being pulled out from inside the collection box in a lightweight composite cooling device for EMU transformers according to the present invention.

[0022] In the diagram: 1. Cooler body; 2. Outer frame; 3. Support; 4. Upper cover; 5. Cooling fan; 6. Movement control slot; 7. First control motor; 8. Movement adjustment rod; 9. Side movement frame; 10. Control movement block; 11. Through threaded hole; 12. Bearing; 13. Rotary connecting rod; 14. Cleaning brush; 15. Second control motor; 16. Dust removal port; 17. Collection box; 18. Dust collection box; 19. Suction pump; 20. Sealing anti-slip strip; 21. Suction nozzle; 22. Anti-slip sealing strip; 23. Limiting and fixing plate; 24. Suction bucket; 25. Connection port; 26. Transmission hose. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] like Figure 1-6 As shown, a lightweight composite cooling device for a high-speed train transformer includes a cooler body 1 and an outer frame 2. The cooler body 1 is located inside the outer frame 2. A support 3 is fixedly connected to the lower end of the outer frame 2, and an upper cover 4 is fixedly connected to the upper end of the outer frame 2. A cooling fan 5 is positioned and installed on the inner wall of the upper end of the upper cover 4. Movable control slots 6 are provided on both sides of the upper cover 4. A first control motor 7 is fixedly connected to both sides of one end of the upper cover 4. A movable adjustment rod 8 is movably connected to the inner side of the movable control slot 6 to play a control and adjustment role.

[0025] Furthermore, the upper end of the support 3 is fixedly connected to the lower end of the outer frame 2, the lower end of the upper cover 4 is fixedly connected to the upper end of the outer frame 2, the cooling fan 5 is embedded in the inner wall of the upper cover 4 and fixed, one end of the first control motor 7 is fixedly connected to both sides of one end of the upper cover 4, one end of the moving adjustment rod 8 passes through the inner wall of the moving control groove 6 and is connected to the first control motor 7, and the first control motor 7 can adjust and control the rotation of the moving adjustment rod 8 according to actual needs.

[0026] Furthermore, side movable frames 9 are movably installed on both sides of the upper cover 4. A control movable block 10 is fixedly connected to the lower end of one side of the side movable frame 9. The inner wall of the control movable block 10 has a through threaded hole 11. A bearing 12 is fixedly connected to the upper end of the inner wall of the side movable frame 9. A rotating connecting rod 13 is fixedly connected to the inner wall of the bearing 12. A cleaning brush 14 is fixedly connected to the outer wall of the rotating connecting rod 13. A second control motor 15 is fixedly connected to one side of the side movable frame 9. The second control motor 15 can drive the rotating connecting rod 13 to rotate the cleaning brush 14.

[0027] Furthermore, there are two sets of side moving frames 9. One end of the second control motor 15 is fixed to one side of one set of side moving frames 9 by bolts. One side of the control moving block 10 is fixedly connected to the lower end of one side of the side moving frame 9. The control moving block 10 is sleeved on the outer wall of the moving adjusting rod 8 through the through threaded hole 11. When the moving adjusting rod 8 rotates inside the moving control groove 6, the control moving block 10 moves on the outer wall of the moving adjusting rod 8.

[0028] Furthermore, the outer wall of the bearing 12 is fixedly connected to the inner wall of the side movable frame 9, and the outer walls of both ends of the rotating connecting rod 13 are fixedly connected to the inner wall of the bearing 12. One end of the rotating connecting rod 13 passes through the bearing 12 and is movably connected to the second control motor 15. The inner wall of the cleaning brush 14 is fixedly connected to the outer wall of the rotating connecting rod 13. The second control motor 15 drives the rotating connecting rod 13 to rotate the cleaning brush 14. The use of the bearing 12 can ensure that the rotating connecting rod 13 remains stable during rotation, reduce friction and wear, and improve the accuracy and reliability of rotation. The second control motor 15 drives the rotating connecting rod 13 to rotate the cleaning brush 14, which can achieve a high-efficiency cleaning effect. The rotation of the cleaning brush 14 can cover a larger cleaning area and improve cleaning efficiency. When the cooling fan 5 stops running, its upper end and outer wall can be cleaned. Dust, catkins and other blockages in the gaps of the cooling fan 5 can be removed regularly or as needed, so that it is always in a high-efficiency ventilation state and reduces overheating protection shutdown accidents caused by poor heat dissipation.

[0029] Furthermore, a dust removal port 16 is provided at one end of the upper cover 4, a collection box 17 is fixedly connected to the rear end of the outer frame 2, a dust collection box 18 is positioned and installed on the inner wall of the collection box 17, a suction pump 19 is fixedly connected to one end of the dust collection box 18, and a sealing anti-slip strip 20 is fixedly connected to the outer wall of one end of the dust collection box 18 to enhance anti-slip and sealing performance.

[0030] Furthermore, a suction nozzle 21 is positioned and installed on the inner wall of the dust collection port 16. An anti-slip sealing strip 22 is fixedly connected to the outer wall of the suction nozzle 21. A limiting fixing plate 23 is fixedly connected to the outer wall of one end of the suction nozzle 21. A suction bucket 24 is fixedly connected to one end of the suction nozzle 21. A connection port 25 is opened on the inner wall of the suction bucket 24. A transmission hose 26 is fixedly connected between the suction bucket 24 and the suction pump 19. The design of the suction nozzle 21 can effectively capture dust and particulate matter. The use of the suction bucket 24 can further enhance the suction power and improve the dust collection efficiency. The use of the anti-slip sealing strip 22 can ensure the sealing between the suction nozzle 21 and the dust collection port 16, preventing dust and particulate matter from escaping from the gaps and improving the dust collection effect. The design of the limiting fixing plate 23 can ensure that the suction nozzle 21 remains stable during operation and prevent displacement or detachment caused by vibration or impact.

[0031] Furthermore, one side of the collection box 17 is fixedly connected to the rear end of the outer frame 2, the outer wall of the dust collection box 18 is movably connected to the inner wall of the collection box 17, one end of the suction pump 19 is fixed to the upper end of one end of the dust collection box 18 by bolts, and one side of the sealing anti-slip strip 20 is attached to the outer wall of the dust collection box 18 by strong adhesive. The movable connection design between the dust collection box 18 and the collection box 17 makes it easy to disassemble and clean the dust collection box 18, facilitating daily maintenance and upkeep. The use of the sealing anti-slip strip 20 ensures the sealing between the dust collection box 18 and the collection box 17, preventing dust and particles from escaping from the gaps and improving the suction effect. The suction pump 19 is fixed to the dust collection box 18 by bolts, making installation and disassembly very convenient, facilitating replacement and maintenance. The design of the dust collection box 18 can effectively collect and store the dust and particles captured during the suction process, improving suction efficiency and effect.

[0032] Furthermore, one side of the anti-slip sealing strip 22 is bonded and positioned to the outer wall of the suction nozzle 21 with strong adhesive. The inner wall of the limiting and fixing plate 23 is fixedly connected to the outer wall of one end of the suction nozzle 21. The suction nozzle 21 is inserted into the inner wall of the dust removal port 16 and positioned by the limiting and fixing plate 23. One end of the suction bucket 24 is fixedly connected to one end of the suction nozzle 21. One end of the transmission hose 26 is connected to the suction bucket 24 through the connecting port 25. The other end of the transmission hose 26 is fixedly connected to one end of the suction pump 19. The suction pump 19 can lift... The suction power allows the dust, catkins, and other blockages inside the upper casing 4 to be sucked out when the cooling fan 5 is not running. The dust is then drawn into the dust collection box 18 through the suction bucket 24 and the transmission hose 26. The dust collection box 18 can then be pulled out of the collection box 17 for cleaning. With the radiator running smoothly, the cooling fan 5 does not need to operate at high load for a long time. The wear of the fan motor and bearings is greatly reduced, and its service life and reliability are improved accordingly, forming a virtuous cycle. At the same time, it replaces frequent and high-intensity manual cleaning, saving costs.

[0033] Working Principle: A lightweight composite cooling device for EMU transformers, in use, the outer frame 2 provides protection to the outside of the cooler body 1, the support 3 provides stability at the lower end of the outer frame 2, the cooling fan 5 enhances heat dissipation on the inner wall of the upper cover 4, the control moving block 10 is sleeved on the outer wall of the moving adjusting rod 8 through the through threaded hole 11, so that the side moving frame 9 is positioned on both sides of the upper cover 4, the first control motor 7 drives the moving adjusting rod 8 to rotate inside the moving control groove 6, so that the control... The movable block 10 moves on the outer wall of the movable adjusting rod 8, and at the same time, it can drive the side movable frame 9 to move. The second control motor 15 drives the rotating connecting rod 13 to drive the cleaning brush 14 to rotate. Through the action of the bearing 12, the rotating connecting rod 13 can rotate more easily on the inner wall of the side movable frame 9. When the cooling fan 5 is not running, when the side movable frame 9 moves on both sides of the upper cover 4, the cleaning brush 14 can clean the cooling fan 5 at the upper end of the upper cover 4, and can periodically or as needed remove dust, catkins and other blockages from the gaps of the cooling fan 5. The dust collection nozzle 21 is inserted into the inner wall of the dust collection port 16 and positioned with the upper cover 4 by the limiting and fixing plate 23. The anti-slip sealing strip 22 on the outer wall of the dust collection nozzle 21 can enhance the sealing performance. One end of the transmission hose 26 is positioned with the suction bucket 24 through the connection port 25, and the other end of the transmission hose 26 is connected to the suction pump 19. The suction pump 19 can provide suction power. When the cooling fan 5 is not running, it can ventilate the inside of the upper cover 4. Dust, catkins, and other blockages are sucked out and enter the inner side of the dust collection box 18 through the suction bucket 24 and the transmission hose 26. The dust collection box 18 can then be pulled out of the collection box 17 for cleaning. With the radiator running smoothly, the cooling fan 5 does not need to operate at high load for a long time, and the wear of the fan motor and bearings is greatly reduced, which also improves its service life and reliability, forming a virtuous cycle. At the same time, it replaces frequent and high-intensity manual cleaning, saving costs. The sealing anti-slip strip 20 on the outer wall of the dust collection box 18 can enhance anti-slip and sealing performance.

[0034] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] 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 present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight composite cooling device for a high-speed train transformer, comprising a cooler body (1) and an outer frame (2), characterized in that: The main body (1) of the cooler is located inside the outer frame (2). The lower end of the outer frame (2) is fixedly connected to a support (3). The upper end of the outer frame (2) is fixedly connected to an upper cover (4). A cooling fan (5) is installed on the inner wall of the upper end of the upper cover (4). A movable control slot (6) is opened on both sides of the upper cover (4). A first control motor (7) is fixedly connected to both sides of one end of the upper cover (4). A movable adjustment rod (8) is movably connected to the inner side of the movable control slot (6).

2. The lightweight composite cooling device for EMU transformers according to claim 1, characterized in that: The upper end of each support (3) is fixedly connected to the lower end of the outer frame (2), the lower end of the upper cover (4) is fixedly connected to the upper end of the outer frame (2), the cooling fan (5) is embedded in the inner wall of the upper cover (4) and fixed therein, one end of the first control motor (7) is fixedly connected to both sides of one end of the upper cover (4), and one end of the moving adjustment rod (8) passes through the inner wall of the moving control groove (6) and is connected to the first control motor (7).

3. A lightweight composite cooling device for a high-speed train transformer according to claim 2, characterized in that: Both sides of the upper cover (4) are movably mounted with side moving frames (9). A control moving block (10) is fixedly connected to the lower end of one side of the side moving frame (9). A through threaded hole (11) is opened on the inner wall of the control moving block (10). A bearing (12) is fixedly connected to the upper end of the inner wall of the side moving frame (9). A rotating connecting rod (13) is fixedly connected to the inner wall of the bearing (12). A cleaning brush (14) is fixedly connected to the outer wall of the rotating connecting rod (13). A second control motor (15) is fixedly connected to one side of the side moving frame (9).

4. A lightweight composite cooling device for a high-speed train transformer according to claim 3, characterized in that: The number of the side moving frame (9) is two sets. One end of the second control motor (15) is fixed to one side of one set of the side moving frame (9) by bolts. One side of the control moving block (10) is fixedly connected to the lower end of one side of the side moving frame (9). The control moving block (10) is sleeved on the outer wall of the moving adjustment rod (8) through the through threaded hole (11).

5. A lightweight composite cooling device for a high-speed train transformer according to claim 4, characterized in that: The outer wall of the bearing (12) is fixedly connected to the inner wall of the side movable frame (9). The outer walls of both ends of the rotating connecting rod (13) are fixedly connected to the inner wall of the bearing (12). One end of the rotating connecting rod (13) passes through the bearing (12) and is movably connected to the second control motor (15). The inner wall of the cleaning brush (14) is fixedly connected to the outer wall of the rotating connecting rod (13).

6. A lightweight composite cooling device for a high-speed train transformer according to claim 5, characterized in that: The upper cover (4) has a dust removal port (16) at one end. The rear end of the outer frame (2) is fixedly connected to a collection box (17). A dust collection box (18) is installed on the inner wall of the collection box (17). A suction pump (19) is fixedly connected to one end of the dust collection box (18). A sealing anti-slip strip (20) is fixedly connected to the outer wall of one end of the dust collection box (18).

7. A lightweight composite cooling device for a high-speed train transformer according to claim 6, characterized in that: A suction nozzle (21) is positioned and installed on the inner wall of the dust removal port (16). An anti-slip sealing strip (22) is fixedly connected to the outer wall of the suction nozzle (21). A limit fixing plate (23) is fixedly connected to the outer wall of one end of the suction nozzle (21). A suction bucket (24) is fixedly connected to one end of the suction nozzle (21). A connection port (25) is opened on the inner wall of the suction bucket (24). A transmission hose (26) is fixedly connected between the suction bucket (24) and the suction pump (19).

8. A lightweight composite cooling device for a high-speed train transformer according to claim 7, characterized in that: One side of the collection box (17) is fixedly connected to the rear end of the outer frame (2), the outer wall of the dust collection box (18) is movably connected to the inner wall of the collection box (17), one end of the suction pump (19) is fixed to the upper end of one end of the dust collection box (18) by bolts, and one side of the sealing anti-slip strip (20) is attached to the outer wall of the dust collection box (18) by strong adhesive for positioning.

9. A lightweight composite cooling device for a high-speed train transformer according to claim 8, characterized in that: One side of the anti-slip sealing strip (22) is attached to the outer wall of the suction nozzle (21) with strong adhesive for positioning. The inner wall of the limiting fixing plate (23) is fixedly connected to the outer wall of one end of the suction nozzle (21). The suction nozzle (21) is inserted into the inner wall of the dust removal port (16) and positioned by the limiting fixing plate (23). One end of the suction bucket (24) is fixedly connected to one end of the suction nozzle (21). One end of the transmission hose (26) is connected to the suction bucket (24) through the connection port (25). The other end of the transmission hose (26) is fixedly connected to one end of the suction pump (19).

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