Box-type combined power transformer

Abstract

The invention discloses a box-type combined power transformer, and relates to the technical field of power transformers, the box-type combined power transformer comprises a box body, a combined transformer is fixedly installed on the inner wall of the box body, the box body is used for placing and protecting the combined transformer, a radiator is fixedly installed on the top of the box body, and the radiator is fixedly installed on the top of the box body. A top plate is fixedly installed on the top of the box body and used for protecting a radiator, the radiator is used for conducting heat dissipation on the inner wall of the box body, the combined transformer is fixedly installed on the inner wall of the box body, rainwater automatically flows through a heat dissipation pipe, heat dissipation is enhanced, and the temperature in the box body can be effectively reduced; the heat dissipation effect of the combined transformer is improved, the fault risk of the combined transformer caused by overheating is reduced, and therefore the reliability of equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of power transformers, and particularly to a box-type combined power transformer. Background Art

[0002] As a complete set of power distribution equipment, a box-type transformer is organically composed of a transformer, high-voltage voltage control equipment, and low-voltage voltage control equipment.

[0003] The patent with the patent announcement number CN111739712B relates to the technical field of power transformers, including a box-type transformer body. The inner wall of the box-type transformer body is fixedly connected with galvanized plates. There is a transformer chamber between the two galvanized plates. A high-voltage chamber is arranged on the left side of the transformer chamber, and a low-voltage chamber is arranged on the right side of the transformer chamber. The use of an exhaust fan, an air suction pipe, and a wind guide plate in this patent can effectively discharge the heat inside the box-type transformer body. Then, through the cooperation of a refrigerator, an air inlet pipe, an air pump, a blowing pipe, and a wind guide plate, cold air can be blown into the inside of the box-type transformer body, so that the inside of the box-type transformer body can be effectively cooled. The use of a cooling fan can accelerate the flow rate of cold air inside the box-type transformer body, thereby improving the heat dissipation effect of the box-type transformer body and extending the service life of the box-type transformer body.

[0004] The above patent can accelerate the flow rate of cold air inside the box-type transformer body, thereby improving the heat dissipation effect of the box-type transformer body and extending the service life of the box-type transformer body. However, when the rainfall outside is too large, rainwater may enter the inner wall of the box through the heat dissipation holes. If rainwater enters the inner wall of the box, it will cause the electrical components on the inner wall of the box to short-circuit and damage the electrical components inside the box. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a box-type combined power transformer to solve the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A box-type combined power transformer, including a box body: The box body, a combined transformer is fixedly installed on the inner wall of the box body, and the box body is used to place and protect the combined transformer; The top plate, the top plate is fixedly installed on the top of the box body, a radiator is arranged on the top of the box body, and the top plate is used to protect the radiator; The radiator, the radiator is used to dissipate heat from the inner wall of the box body; A heat dissipation device is also provided on the outer wall of the box body. The heat dissipation device includes a water storage tank, a drain pipe, a heat dissipation pipe, a pressing plate and a baffle. The water storage tank is fixedly installed on the outer wall of the box body. The drain pipe is fixedly installed on the side of the water storage tank away from the box body. The heat dissipation pipe is fixedly installed on the inner wall of the box body. The heat dissipation pipe is communicated with the water storage tank. The pressing plate is slidably installed on the inner wall of the water storage tank. The baffle is fixedly installed on the top of the pressing plate. By automatically flowing rainwater through the heat dissipation pipe and enhancing heat dissipation, the temperature inside the box body can be effectively reduced, the heat dissipation effect of the combined transformer can be improved, the risk of combined transformer failure caused by overheating can be reduced, and thus the reliability and service life of the equipment can be improved.

[0007] According to the above technical solution, the heat dissipation device further includes a rotating plate, a pressing rod and a push rod. The push rod is fixedly installed at the bottom of the pressing plate. The push rod slidably penetrates through the bottom of the water storage tank. The pressing rod is slidably installed on the side of the box body close to the push rod. The push rod is fixedly connected with the pressing rod. A heat dissipation hole is formed on the side of the box body close to the pressing rod. The rotating plate is rotatably installed on the inner wall of the heat dissipation hole. The pressing rod is rotatably connected with the rotating plate. When the rotating plate rotates downward, the opening of the heat dissipation hole will be reduced, effectively preventing external rainwater from entering the box body and protecting the box body and internal equipment from being damaged by moisture or water. Especially for electrical equipment, the entry of water may cause short circuits or damage. Through this design, this risk can be effectively reduced.

[0008] According to the above technical solution, a round hole is formed on the side of the baffle close to the drain pipe. The shape of the round hole matches the shape of the drain pipe. The shape of the round hole matches the shape of the heat dissipation pipe. A first spring is provided between the pressing plate and the water storage tank. The first spring is provided to drive the pressing plate back to its original position after the rainwater inside the water storage tank is discharged.

[0009] According to the above technical solution, a blocking device for blocking rainwater from contacting the radiator and a collecting device for collecting impurities on the surface of the radiator are further provided on the outer wall of the box body. The blocking device includes a rotating plate, a clamping rod, a clamping groove and a fixing plate. The rotating plate is rotatably installed on the top of the box body. The clamping rod is fixedly installed on the side of the baffle close to the rotating plate. The clamping groove is fixedly installed on the side of the rotating plate close to the baffle. The clamping rod is in contact with the inner wall of the clamping groove. The fixing plate is fixedly installed on the top of the box body. It is mainly to prevent rainwater from flowing directly into the radiator, protect the radiator from the influence of rainwater, improve the stability and service life of the equipment. In addition, by increasing the height of the top of the box body, it is also possible to effectively prevent water flow from entering the box body through the radiator and damaging the equipment inside the box body.

[0010] According to the above technical solution, the blocking device further includes a pressing plate, a sliding plate, a controller, a motor, a reciprocating lead screw, and a scraping plate. The pressing plate is fixedly installed on the side of the rotating plate away from the card slot. The sliding plate is slidably installed on the side of the fixing plate close to the pressing plate. The controller is arranged on the top of the box body. The motor is fixedly installed on the top of the box body. The reciprocating lead screw is fixedly installed at the output end of the motor. A chute is provided on the surface of the reciprocating lead screw. The scraping plate is slidably installed on the inner wall of the chute. Long-term accumulation of impurities and moisture in the air on the surface of the radiator will form a dirt layer, which affects the heat dissipation effect and performance of the radiator. The scraping plate can effectively remove these impurities, prevent the formation of the dirt layer, and ensure that the radiator can maintain the best heat dissipation performance.

[0011] According to the above technical solution, the control end of the controller is electrically connected to the motor. A first torsion spring is provided between the rotating plate and the box body. The first torsion spring is provided to drive the rotating plate to rotate after the limit of the rotating plate is released. A second spring is provided between the sliding plate and the fixing plate. The second spring is provided to drive the sliding plate to return to its original position when the rotating plate returns to its original position.

[0012] According to the above technical solution, the collection device includes a storage box, a fixed scraping plate, and a drawer. The storage box is fixedly installed on the top of the box body. The fixed scraping plate is fixedly installed on the top of the storage box. The drawer is slidably installed on the inner wall of the storage box. The sides of the fixed scraping plate and the scraping plate close to each other are set as inclined surfaces. The impurities on the surface of the scraping plate are scraped off so that the impurities on the surface of the scraping plate fall into the drawer for collection, avoiding the impurities on the surface of the scraping plate being driven to move towards the original position when the scraping plate returns to its original position. This can prevent the impurities from being brought back to the surface of the radiator due to inertia or other reasons during reset, ensuring that the surface of the radiator can remain clean for a long time and avoiding the influence of heat dissipation effect due to the re-accumulation of dirt.

[0013] According to the above technical solution, the collection device further includes a rotating pressing rod, a sliding rod, a sliding pressing plate, a rotating pressing plate, and a compaction plate. The rotating pressing rod is fixedly installed at the end of the reciprocating lead screw away from the motor. The sliding rod is slidably installed on the inner wall of the storage box. A square groove is provided on the side of the drawer close to the sliding rod. The shape of the sliding rod matches that of the square groove. The sliding pressing plate is slidably installed on the inner wall of the drawer. The rotating pressing plate is rotatably installed on the inner wall of the drawer. The compaction plate is slidably installed on the inner wall of the drawer. By means of extrusion, part of the moisture in the impurities can be removed, making the impurities more compact and solid. In this way, the impurities will not float again due to the influence of external air flow after drying, avoiding the reattachment of the impurities to the surface of the radiator and affecting its heat dissipation effect. This can greatly reduce the risk of such secondary pollution and ensure that the surface of the radiator remains clean for a long time.

[0014] According to the above technical solution, a third spring is provided between the sliding rod and the storage box. The third spring is provided to drive the sliding rod to reset after the rotating pressure rod loses contact with the sliding rod. A fourth spring is provided between the sliding pressure plate and the extraction box. The fourth spring is provided to drive the sliding pressure plate to reset when the sliding rod resets and releases contact with the sliding pressure plate. The sides of the sliding rod and the sliding pressure plate close to each other are provided with inclined surfaces. The inclined surfaces of the sliding rod and the sliding pressure plate are provided to facilitate the sliding rod to push the sliding pressure plate to move. A second torsion spring is provided between the rotating pressure plate and the extraction box. The second torsion spring is provided to drive the rotating pressure plate to return to its original position when the sliding pressure plate resets and releases the pressing on the rotating pressure plate. A fifth spring is provided between the compaction plate and the inner wall of the extraction box. The fifth spring is provided to drive the compaction plate to reset when the rotating pressure plate resets and releases the pushing on the compaction plate.

[0015] The present invention provides a box-type combined power transformer. It has the following beneficial effects: (1) In this invention, when the rotating plate rotates downward, the opening of the heat dissipation hole will be reduced, effectively preventing external rainwater from entering the inside of the box body, protecting the box body and internal equipment from moisture or water damage. Especially for electrical equipment, the entry of water may cause short circuits or damage. Through this design, this risk can be effectively reduced.

[0016] (2) In this invention, when the rotating plate rotates, it will increase the height of the top of the box body, preventing the rainwater inside the water storage tank from spreading towards the radiator and also preventing the external rainwater from being blown by the wind and spreading towards the radiator. The main effect is to prevent rainwater from directly flowing into the radiator, protecting the radiator from the influence of rainwater, improving the stability and service life of the equipment. In addition, by increasing the height of the top of the box body, it can also prevent water from directly entering the inside of the box body through the radiator and damaging the internal equipment.

[0017] (3) In this invention, when the reciprocating lead screw rotates, it will drive the scraping plate to move towards the side away from the motor, and the scraping plate will scrape and clean the impurities on the surface of the radiator, preventing impurities in the air from adhering to the surface of the radiator due to excessive humidity in rainy weather. The long-term accumulation of impurities and moisture in the air on the surface of the radiator will form a dirt layer, affecting the heat dissipation effect and performance of the radiator. Through the scraping plate, these impurities can be effectively removed, preventing the formation of a dirt layer and ensuring that the radiator can maintain the best heat dissipation performance.

[0018] (4) In this invention, the impurities on the surface of the scraping plate are scraped off and fall into the extraction box for collection, preventing the impurities on the surface of the scraping plate from being driven towards the original position when the scraping plate resets. This can prevent the impurities from being brought back to the surface of the radiator due to inertia or other reasons during reset, ensuring that the surface of the radiator can remain clean for a long time and avoiding the influence of heat dissipation due to the re-accumulation of dirt.

[0019] (5) In this invention, when the rotating pressure plate rotates, it will push the compaction plate to slide away from the sliding rod. Then, the compaction plate will extrude the impurities that fall into the extraction box. Through extrusion, part of the moisture in the impurities can be removed, making the impurities more compact and solid. In this way, after drying, the impurities will not float again due to the influence of external air flow, avoiding the reattachment of impurities to the surface of the radiator and affecting its heat dissipation effect. This can greatly reduce the risk of such secondary pollution and ensure that the surface of the radiator remains clean for a long time. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the positional structure of the box body and the combined transformer of the present invention; Figure 3 It is a schematic diagram of the positional structure of the rotating plate and the pressing rod of the present invention; Figure 4 It is a schematic diagram of the positional structure of the rotating plate and the card slot of the present invention; Figure 5 It is a schematic diagram of the positional structure of the reciprocating lead screw and the scraping plate of the present invention; Figure 6 It is a schematic diagram of the positional structure of the storage box and the fixed scraping plate of the present invention; Figure 7 It is a schematic diagram of the positional structure of the rotating pressure plate and the compaction plate of the present invention.

[0021] In the figure: 1. Box body; 2. Top plate; 3. Water storage tank; 4. Radiator; 5. Combined transformer; 6. Drain pipe; 7. Rotating plate; 8. Pressing rod; 9. Push rod; 10. Heat dissipation pipe; 11. Pressure plate; 12. Baffle; 21. Rotating plate; 22. Clamping rod; 23. Card slot; 24. Fixed plate; 25. Pressing plate; 26. Sliding plate; 27. Controller; 28. Motor; 29. Reciprocating lead screw; 291. Scraping plate; 31. Storage box; 32. Fixed scraping plate; 33. Rotating pressing rod; 34. Sliding rod; 35. Extraction box; 36. Sliding pressure plate; 37. Rotating pressure plate; 38. Compaction plate. Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 - 7 , an embodiment of the present invention is: A box-type combined power transformer, including a box body 1: The box body 1, inside the wall of the box body 1, a combined transformer 5 is fixedly installed, and the box body 1 is used to place and protect the combined transformer 5; The top plate 2, the top plate 2 is fixedly installed on the top of the box body 1, a radiator 4 is arranged on the top of the box body 1, and the top plate 2 is used to protect the radiator 4; The radiator 4, the radiator 4 is used to dissipate heat from the inner wall of the box body 1; On the outer wall of the box body 1, a heat dissipation device is further provided. The heat dissipation device includes a water storage tank 3, a drain pipe 6, a heat dissipation pipe 10, a pressing plate 11 and a baffle 12. The water storage tank 3 is fixedly installed on the outer wall of the box body 1, the drain pipe 6 is fixedly installed on the side of the water storage tank 3 away from the box body 1, the heat dissipation pipe 10 is fixedly installed on the inner wall of the box body 1, the heat dissipation pipe 10 is communicated with the water storage tank 3, the pressing plate 11 is slidably installed on the inner wall of the water storage tank 3, the baffle 12 is fixedly installed on the top of the pressing plate 11. When rainwater automatically flows through the heat dissipation pipe 10 to enhance heat dissipation, the temperature inside the box body 1 can be effectively reduced, the heat dissipation effect of the combined transformer 5 can be improved, the risk of failure of the combined transformer 5 caused by overheating can be reduced, and thus the reliability and service life of the equipment can be improved.

[0024] The heat dissipation device further includes a rotating plate 7, a pressing rod 8 and a push rod 9. The push rod 9 is fixedly installed at the bottom of the pressing plate 11, the push rod 9 slidably penetrates through the bottom of the water storage tank 3, the pressing rod 8 is slidably installed on one side of the box body 1 close to the push rod 9, the push rod 9 is fixedly connected with the pressing rod 8, a heat dissipation hole is opened on one side of the box body 1 close to the pressing rod 8, the rotating plate 7 is rotatably installed on the inner wall of the heat dissipation hole, the pressing rod 8 is rotatably connected with the rotating plate 7. When the rotating plate 7 rotates downward, the opening of the heat dissipation hole will be reduced, thereby effectively preventing external rainwater from entering the inside of the box body 1, protecting the box body 1 and the internal equipment from being damaged by moisture or water. Especially for electrical equipment, the entry of water may cause short circuits or damage. Through this design, this risk can be effectively reduced.

[0025] A round hole is opened on one side of the baffle 12 close to the drain pipe 6. The outer shape of the round hole matches the outer shape of the drain pipe 6, and the outer shape of the round hole matches the outer shape of the heat dissipation pipe 10. A first spring is provided between the pressing plate 11 and the water storage tank 3. The first spring is provided to drive the pressing plate 11 back to its original position after the rainwater inside the water storage tank 3 is drained.

[0026] During the operation of this embodiment: When the combined transformer 5 is in use, a large amount of heat will be generated and stored inside the box body 1. When the heat inside the box body 1 is excessive, the radiator 4 will cool the inside of the box body 1. When it starts to rain outside, the top plate 2 will block the rainwater to prevent the rainwater from affecting the radiator 4, and the rainwater will slide down the top plate 2 into the water storage tank 3. The rainwater that slides into the water storage tank 3 will be discharged from the drain pipe 6. When the collection speed of the rainwater by the water storage tank 3 is greater than the discharge speed of the rainwater, the rainwater will accumulate inside the water storage tank 3. When the stored rainwater is excessive, the rainwater inside the water storage tank 3 will press the pressing plate 11 to slide downward. When the pressing plate 11 slides downward, it will press the push rod 9 to move downward. The downward movement of the push rod 9 will push the pressing rod 8 to move downward. The downward movement of the pressing rod 8 will drive the rotating plate 7 to rotate downward. The downward rotation of the rotating plate 7 will reduce the opening of the heat dissipation holes, thus effectively preventing the outside rainwater from entering the box body 1 and protecting the box body 1 and the internal equipment from being damaged by moisture. Especially for electrical equipment, the entry of moisture may cause short circuits or damage. Through this design, this risk can be effectively reduced. After the pressing plate 11 slides downward, it will drive the baffle 12 to move. The movement of the baffle 12 will drive the round hole to move, and the movement of the round hole will disconnect the connection with the drain pipe 6, so that the rainwater cannot be discharged from the drain pipe 6. The downward movement of the round hole will release the seal of the heat dissipation pipe 10, so that the rainwater will flow through the heat dissipation pipe 10. Since the heat dissipation pipe 10 is installed on the inner wall of the box body 1, when the rainwater is discharged from the heat dissipation pipe 10, it will pass through the inside of the box body 1. Then, when the rainwater is discharged, it will enhance the heat dissipation of the inside of the box body 1. By automatically flowing the rainwater through the heat dissipation pipe 10 and enhancing the heat dissipation, the temperature inside the box body 1 can be effectively reduced, the heat dissipation effect of the combined transformer 5 can be improved, and the risk of failure of the combined transformer 5 caused by overheating can be reduced, thereby improving the reliability and service life of the equipment.

[0027] Please refer to Figures 1 - 7 On the basis of the above embodiment, in another embodiment of the present invention, a blocking device for blocking the contact between rainwater and the radiator 4 and a collecting device for collecting impurities on the surface of the radiator 4 are further provided on the outer wall of the box body 1. The blocking device includes a rotating plate 21, a clamping rod 22, a clamping groove 23 and a fixing plate 24. The rotating plate 21 is rotatably installed on the top of the box body 1. The clamping rod 22 is fixedly installed on one side of the baffle 12 close to the rotating plate 21. The clamping groove 23 is fixedly installed on one side of the rotating plate 21 close to the baffle 12. The clamping rod 22 is in contact with the inner wall of the clamping groove 23. The fixing plate 24 is fixedly installed on the top of the box body 1. It is mainly to prevent rainwater from directly flowing into the radiator 4, protect the radiator 4 from the influence of rainwater, improve the stability and service life of the equipment. In addition, by increasing the height of the top of the box body 1, it can also effectively prevent water flow from entering the box body 1 through the radiator 4 and damaging the equipment inside the box body 1.

[0028] The blocking device further includes a pressing plate 25, a sliding plate 26, a controller 27, a motor 28, a reciprocating lead screw 29 and a scraping plate 291. The pressing plate 25 is fixedly installed on the side of the rotating plate 21 away from the card slot 23. The sliding plate 26 is slidably installed on the side of the fixing plate 24 close to the pressing plate 25. The controller 27 is arranged on the top of the box body 1. The motor 28 is fixedly installed on the top of the box body 1. The reciprocating lead screw 29 is fixedly installed at the output end of the motor 28. A chute is provided on the surface of the reciprocating lead screw 29. The scraping plate 291 is slidably installed on the inner wall of the chute. Impurities and moisture in the air accumulate on the surface of the radiator 4 for a long time, which will form a dirt layer, affecting the heat dissipation effect and performance of the radiator 4. The scraping plate 291 can effectively remove these impurities, prevent the formation of the dirt layer, and ensure that the radiator 4 can maintain the best heat dissipation performance.

[0029] The control end of the controller 27 is electrically connected to the motor 28. A first torsion spring is provided between the rotating plate 21 and the box body 1. The first torsion spring is provided to drive the rotating plate 21 to rotate after the limit of the rotating plate 21 is released. A second spring is provided between the sliding plate 26 and the fixing plate 24. The second spring is provided to drive the sliding plate 26 to return to its original position when the rotating plate 21 returns to its original position.

[0030] The collection device includes a storage frame 31, a fixed scraping plate 32 and a drawer 35. The storage frame 31 is fixedly installed on the top of the box body 1. The fixed scraping plate 32 is fixedly installed on the top of the storage frame 31. The drawer 35 is slidably installed on the inner wall of the storage frame 31. The sides of the fixed scraping plate 32 and the scraping plate 291 close to each other are set as inclined surfaces. The impurities on the surface of the scraping plate 291 are scraped off so that the impurities on the surface of the scraping plate 291 fall into the drawer 35 for collection, avoiding the impurities on the surface of the scraping plate 291 being driven to move back to the original position when the scraping plate 291 resets. This can prevent the impurities from being brought back to the surface of the radiator 4 due to inertia or other reasons during reset, ensuring that the surface of the radiator 4 can remain clean for a long time and avoiding affecting the heat dissipation effect due to the re-accumulation of dirt.

[0031] The collection device further includes a rotating pressure rod 33, a sliding rod 34, a sliding pressure plate 36, a rotating pressure plate 37 and a compaction plate 38. The rotating pressure rod 33 is fixedly installed at the end of the reciprocating lead screw 29 away from the motor 28. The sliding rod 34 is slidably installed on the inner wall of the storage frame 31. A square groove is provided on the side of the drawer 35 close to the sliding rod 34. The shape of the sliding rod 34 matches the square groove. The sliding pressure plate 36 is slidably installed on the inner wall of the drawer 35. The rotating pressure plate 37 is rotatably installed on the inner wall of the drawer 35. The compaction plate 38 is slidably installed on the inner wall of the drawer 35. By extrusion, part of the moisture in the impurities can be removed, making the impurities more compact and solid. In this way, the impurities will not float again due to the influence of external air flow after drying, avoiding the impurities reattaching to the surface of the radiator 4 and affecting its heat dissipation effect. This can greatly reduce the risk of such secondary pollution and ensure that the surface of the radiator 4 remains clean for a long time.

[0032] A third spring is provided between the sliding rod 34 and the storage box 31. The third spring is provided to drive the sliding rod 34 to reset after the rotating pressure rod 33 loses contact with the sliding rod 34. A fourth spring is provided between the sliding pressure plate 36 and the extraction box 35. The fourth spring is provided to drive the sliding pressure plate 36 to reset when the sliding rod 34 resets and releases contact with the sliding pressure plate 36. The sides of the sliding rod 34 and the sliding pressure plate 36 close to each other are provided as inclined surfaces. The inclined surfaces of the sliding rod 34 and the sliding pressure plate 36 are provided to facilitate the sliding rod 34 to push the sliding pressure plate 36 to move. A second torsion spring is provided between the rotating pressure plate 37 and the extraction box 35. The second torsion spring is provided to drive the rotating pressure plate 37 to return to its original position when the sliding pressure plate 36 resets and releases the pressing on the rotating pressure plate 37. A fifth spring is provided between the compaction plate 38 and the inner wall of the extraction box 35. The fifth spring is provided to drive the compaction plate 38 to reset when the rotating pressure plate 37 resets and releases the pushing on the compaction plate 38.

[0033] When this embodiment works: when the pressure plate 11 slides downward, it will drive the clamping rod 22 to move. When the clamping rod 22 moves downward, it will lose contact with the inner wall of the clamping groove 23. Then the limit of the clamping rod 22 on the clamping groove 23 will be released. When the limit of the clamping groove 23 is released, the limit of the rotating plate 21 will also be released. When the limit of the rotating plate 21 is released, the first torsion spring will drive the rotating plate 21 to rotate away from the water storage tank 3. The rotation of the rotating plate 21 will increase the height of the top of the box body 1, avoiding the rainwater inside the water storage tank 3 from spreading towards the radiator 4 and also avoiding the rainwater blown by the wind from the outside from spreading towards the radiator 4. The main effect is to prevent rainwater from directly flowing into the radiator 4, protecting the radiator 4 from the influence of rainwater, improving the stability and service life of the equipment. In addition, by increasing the height of the top of the box body 1, it can also effectively prevent water from flowing into the box body 1 through the radiator 4 and damaging the equipment inside the box body 1. The rotation of the rotating plate 21 will drive the pressing plate 25 to move. The movement of the pressing plate 25 will push the sliding plate 26 to slide downward. The downward movement of the sliding plate 26 will press the control end of the controller 27. When the control end of the controller 27 is pressed, the motor 28 will be started. The start of the motor 28 will drive the reciprocating lead screw 29 to rotate. The rotation of the reciprocating lead screw 29 will drive the scraping plate 291 to move towards the side away from the motor 28. Then the scraping plate 291 will scrape and clean the impurities on the surface of the radiator 4, avoiding the impurities in the air from adhering to the surface of the radiator 4 due to excessive humidity in rainy weather. The long-term accumulation of impurities and moisture in the air on the surface of the radiator 4 will form a dirt layer, affecting the heat dissipation effect and performance of the radiator 4. The scraping plate 291 can effectively remove these impurities, prevent the formation of the dirt layer, and ensure that the radiator 4 can maintain the best heat dissipation performance.

[0034] When the scraping plate 291 moves away from the motor 28 to clean the impurities on the surface of the radiator 4, it will contact the inclined surface of the fixed scraper 32. Then, the fixed scraper 32 will scrape the inclined surface of the scraping plate 291, scrape off the impurities on the surface of the scraping plate 291, and make the impurities on the surface of the scraping plate 291 fall into the extraction box 35 for collection. This avoids the impurities on the surface of the scraping plate 291 being driven to move back to the original position when the scraping plate 291 resets, thus preventing the impurities from being brought back to the surface of the radiator 4 due to inertia or other reasons during reset. This ensures that the surface of the radiator 4 can remain clean for a long time and avoids affecting the heat dissipation effect due to the re-accumulation of dirt. When the reciprocating lead screw 29 rotates, it will drive the rotating pressure rod 33 to rotate. When the rotating pressure rod 33 rotates, it will contact the inclined surface of the sliding rod 34. Then, the rotating pressure rod 33 will push the sliding rod 34 to slide towards the sliding pressure plate 36. When the sliding rod 34 slides, it will contact the inclined surface of the sliding pressure plate 36. Then, the sliding rod 34 will push the sliding pressure plate 36 to slide downwards. When the sliding pressure plate 36 slides downwards, it will press the rotating pressure plate 37 to rotate away from the sliding rod 34. When the rotating pressure plate 37 rotates, it will push the compaction plate 38 to slide away from the sliding rod 34. Then, the compaction plate 38 will extrude the impurities that have fallen into the extraction box 35. Since the impurities contain a lot of moisture inside, the impurities can be compacted and formed by extrusion, avoiding the impurities being blown by the external air flow and scattered from the inside of the extraction box 35 to the outside and adhering to the surface of the radiator 4 after drying. By extrusion, part of the moisture in the impurities can be removed, making the impurities more compact and solid. In this way, the impurities will not be scattered again due to the influence of the external air flow after drying, and the reattachment of the impurities to the surface of the radiator 4, which affects its heat dissipation effect, can be avoided. This can greatly reduce the risk of such secondary pollution and ensure that the surface of the radiator 4 remains clean for a long time.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A box-type combined power transformer, comprising a box body (1), characterized in that: The box body (1), a combined transformer (5) is fixedly installed on the inner wall of the box body (1), and the box body (1) is used to place and protect the combined transformer (5); The top plate (2), the top plate (2) is fixedly installed on the top of the box body (1), a radiator (4) is arranged on the top of the box body (1), and the top plate (2) is used to protect the radiator (4); The radiator (4), the radiator (4) is used to dissipate heat from the inner wall of the box body (1); A heat dissipation device is further arranged on the outer wall of the box body (1), and the heat dissipation device includes a water storage tank (3), a drain pipe (6), a heat dissipation pipe (10), a pressing plate (11) and a baffle (12). The water storage tank (3) is fixedly installed on the outer wall of the box body (1), the drain pipe (6) is fixedly installed on the side of the water storage tank (3) away from the box body (1), the heat dissipation pipe (10) is fixedly installed on the inner wall of the box body (1), the heat dissipation pipe (10) is communicated with the water storage tank (3), the pressing plate (11) is slidably installed on the inner wall of the water storage tank (3), and the baffle (12) is fixedly installed on the top of the pressing plate (11); Wherein, a blocking device for blocking rainwater from contacting the radiator (4) and a collecting device for collecting impurities on the surface of the radiator (4) are further arranged on the outer wall of the box body (1).

2. The box-type combined power transformer according to claim 1, wherein: The heat dissipation device further includes a rotating plate (7), a pressing rod (8) and a push rod (9). The push rod (9) is fixedly installed at the bottom of the pressing plate (11), the push rod (9) slidably penetrates through the bottom of the water storage tank (3), the pressing rod (8) is slidably installed on the side of the box body (1) close to the push rod (9), the push rod (9) is fixedly connected with the pressing rod (8), a heat dissipation hole is opened on the side of the box body (1) close to the pressing rod (8), the rotating plate (7) is rotatably installed on the inner wall of the heat dissipation hole, and the pressing rod (8) is rotatably connected with the rotating plate (7).

3. The box-type combined power transformer according to claim 2, characterized in that: A round hole is opened on the side of the baffle (12) close to the drain pipe (6), the outer shape of the round hole matches the outer shape of the drain pipe (6), the outer shape of the round hole matches the outer shape of the heat dissipation pipe (10), and a first spring is arranged between the pressing plate (11) and the water storage tank (3).

4. A box-type combined power transformer according to claim 3, characterized in that: The blocking device includes a rotating plate (21), a clamping rod (22), a clamping groove (23) and a fixing plate (24). The rotating plate (21) is rotatably installed on the top of the box body (1), the clamping rod (22) is fixedly installed on the side of the baffle (12) close to the rotating plate (21), the clamping groove (23) is fixedly installed on the side of the rotating plate (21) close to the baffle (12), the clamping rod (22) is in contact with the inner wall of the clamping groove (23), and the fixing plate (24) is fixedly installed on the top of the box body (1).

5. The box-type combined power transformer according to claim 4, characterized in that: The blocking device further includes a pressing plate (25), a sliding plate (26), a controller (27), a motor (28), a reciprocating lead screw (29) and a scraping plate (291). The pressing plate (25) is fixedly installed on the side of the rotating plate (21) away from the card slot (23). The sliding plate (26) is slidably installed on the side of the fixed plate (24) close to the pressing plate (25). The controller (27) is arranged on the top of the box body (1). The motor (28) is fixedly installed on the top of the box body (1). The reciprocating lead screw (29) is fixedly installed at the output end of the motor (28). A chute is formed on the surface of the reciprocating lead screw (29). The scraping plate (291) is slidably installed on the inner wall of the chute.

6. The box-type combined power transformer according to claim 5, characterized in that: The control end of the controller (27) is electrically connected to the motor (28). A first torsion spring is arranged between the rotating plate (21) and the box body (1). A second spring is arranged between the sliding plate (26) and the fixed plate (24).

7. The box-type combined power transformer according to claim 6, characterized in that: The collecting device includes a storage frame (31), a fixed scraping plate (32) and a drawer (35). The storage frame (31) is fixedly installed on the top of the box body (1). The fixed scraping plate (32) is fixedly installed on the top of the storage frame (31). The drawer (35) is slidably installed on the inner wall of the storage frame (31). The sides of the fixed scraping plate (32) and the scraping plate (291) close to each other are beveled.

8. A box-type combined power transformer according to claim 7, characterized in that: The collecting device further includes a rotating pressing rod (33), a sliding rod (34), a sliding pressing plate (36), a rotating pressing plate (37) and a compaction plate (38). The rotating pressing rod (33) is fixedly installed at the end of the reciprocating lead screw (29) away from the motor (28). The sliding rod (34) is slidably installed on the inner wall of the storage frame (31). A square groove is formed on the side of the drawer (35) close to the sliding rod (34). The shape of the sliding rod (34) matches that of the square groove. The sliding pressing plate (36) is slidably installed on the inner wall of the drawer (35). The rotating pressing plate (37) is rotatably installed on the inner wall of the drawer (35). The compaction plate (38) is slidably installed on the inner wall of the drawer (35).

9. The box-type combined power transformer according to claim 8, characterized in that: A third spring is arranged between the sliding rod (34) and the storage frame (31). A fourth spring is arranged between the sliding pressing plate (36) and the drawer (35). The sides of the sliding rod (34) and the sliding pressing plate (36) close to each other are beveled. A second torsion spring is arranged between the rotating pressing plate (37) and the drawer (35). A fifth spring is arranged between the compaction plate (38) and the inner wall of the drawer (35).

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