Outdoor box-type transformer

Abstract

The invention relates to the technical field of transformers, and discloses an outdoor box-type transformer which comprises a box body, a lifting opening is formed in the top of the box body, preformed grooves are formed in the two sides of the lifting opening, a ventilation assembly used for heat dissipation is arranged at the top of the box body and comprises a top plate, the top plate is fixed to the top of the box body, and the top plate is fixed to the top of the box body. According to the outdoor box-type transformer, through the ventilation assembly, in non-rainy weather, the ventilation quantity can be increased through the ventilation notches and the opening and closing plates, and through directional control over airflow, under the hot-pressing effect, the ventilation quantity is increased, and the ventilation efficiency is improved. According to the utility model, hot air in the box body can be discharged out more efficiently, the heat dissipation effect is improved again, meanwhile, in rainy days or in the morning and evening, the ventilation assembly is controlled, the box body is closed, rainwater and salt mist particles are prevented from entering the box body, and the use environment of electrical components in the box body is improved.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, specifically to an outdoor box-type transformer. Background Technology

[0002] Outdoor box-type transformers are a type of transformer. Transformers are devices that use the principle of electromagnetic induction to change AC voltage. Transformers are basic equipment for power transmission and distribution. Outdoor box-type transformers are transformers installed in transformer rooms, which are usually steel structure enclosures.

[0003] Outdoor box-type transformers typically have ventilation openings on both sides of the enclosure to ensure effective heat dissipation. However, in coastal locations, rainwater may seep into these openings during heavy rain, increasing the risk of equipment failure. Furthermore, corrosive substances such as salt spray during the morning and evening hours in coastal areas can easily enter the enclosure through the fixed ventilation openings and adhere to the surface of the transformer components. Over time, this accumulation can lead to abnormal equipment operation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an outdoor box-type transformer, which solves the problems mentioned in the background section.

[0005] The present invention provides the following technical solution: an outdoor box-type transformer, including a box body, the top of the box body is provided with a lifting port, and reserved slots are provided on both sides of the lifting port. The top of the box body is provided with a ventilation component for heat dissipation.

[0006] The ventilation assembly includes a top plate, which is fixed to the top of the housing and is hollow inside. Opening and closing plates are hinged to the surfaces on both sides of the top plate. A cylinder is fixed to the top of the inner cavity of the top plate. A fixing plate is fixed to the output shaft of the cylinder. A support plate is fixed to the top of the fixing plate. A ventilation base plate is fixed to the top of the support plate.

[0007] The support plate and the venting base plate are slidably connected to the output shaft of the cylinder. A protective frame is fixed to the top of the venting base plate, and a first filter is fixed to the inner side of the protective frame.

[0008] The bottom of both sides of the top plate is slidably connected to a first connecting plate, and a mounting bracket is fixed to the bottom of the vertical part of the first connecting plate. A second filter is fixed inside the mounting bracket.

[0009] Optionally, ventilation slots are provided on the surfaces of both sides of the housing, and the ventilation slots correspond to the second filter.

[0010] Optionally, a second connecting plate is fixed to the bottom of the horizontal part of the first connecting plate. The second connecting plate is slidably connected to the top of the box. A ventilation frame is fixed to the bottom of the second connecting plate. An air guide groove is opened inside the ventilation frame, and a sealing plate is fixed between two adjacent air guide grooves.

[0011] Optionally, a protective shell is fixed to the top of the top plate, a motor is fixed inside the protective shell, an inner rod is fixed to the output shaft of the motor, an outer tube is slidably connected to the outside of the inner rod, and fan blade shafts are rotatably connected to both sides of the ventilation base plate, with the fan blade shafts near the motor slidably connected to the outer tube.

[0012] Optionally, the two fan blade shafts are externally connected to a belt, and the belt is sleeved on the outside of the cylinder.

[0013] Optionally, air supply components are slidably connected to both sides of the housing, and a ventilation cavity is opened inside the air supply component. A third filter is fixed on the side of the ventilation cavity near the housing. A bottom air outlet is opened on the side of the bottom plate of the air supply component near the third filter, and a side air outlet is opened on the surface of the air supply component away from the housing.

[0014] A storage groove is provided on the side of the vertical part of the air supply component away from the side air outlet. A spring is fixed inside the storage groove, and one end of the spring is fixed to the inner wall of the box.

[0015] Optionally, a drainage cavity is provided on the surface of the top plate away from the cabinet door. A connecting rod is slidably connected inside the drainage cavity. A rainproof plate is fixed to the top of the vertical part of the connecting rod, and one end of the horizontal part of the connecting rod is fixed to the air supply component.

[0016] Optionally, a water storage tank is fixed to the surface of the box body near the drainage cavity, and the water storage tank is located below the drainage cavity.

[0017] Optionally, a heat dissipation fin is fixed to the bottom of an air supply component near the drainage chamber. The fins of the heat dissipation fin pass through the housing and the water storage tank, and one end of the heat dissipation fin is located inside the water storage tank.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This outdoor box-type transformer, through its ventilation components, can increase ventilation volume through two openings—ventilation slots and hinged plates—in non-rainy weather. Furthermore, by controlling the airflow in a directional manner, it can more efficiently discharge hot air from inside the box to the outside under the thermal pressure effect, further improving the heat dissipation effect. At the same time, during rainy days or early morning and evening hours, the ventilation components can be controlled to seal the box, preventing rainwater and salt spray particles from entering the box and improving the operating environment of the electrical components inside the box.

[0020] 2. This outdoor box-type transformer, while sealing the box through the ventilation components, pushes the air supply component during the return process of the ventilation base plate, so that the air supply component extends from the inside of the box to the outside, and then allows the outside air to reconnect with the box through the air supply component. With the help of the third filter and the bottom air vent, the probability of salt spray particles and rainwater entering the box can be reduced, thereby ensuring the efficiency of heat dissipation inside the box in rainy weather or during the morning and evening hours. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a side view of the structure of the present invention;

[0023] Figure 3 This is a cross-sectional view of the structure of the present invention;

[0024] Figure 4 This is a schematic diagram showing the positional relationship between the ventilation base plate, fan blade shaft, and belt of the present invention;

[0025] Figure 5 This is a cross-sectional view of the ventilation assembly of the present invention;

[0026] Figure 6 This is a schematic diagram showing the positional relationship between the air supply component, water tank, and heat dissipation fins of the present invention.

[0027] Figure 7 This is a schematic diagram of the ventilation frame of the present invention;

[0028] Figure 8 This is a schematic diagram showing the positional relationship between the support plate and the ventilated base plate of the present invention;

[0029] Figure 9 for Figure 5 A magnified view of a portion of point A in the middle.

[0030] In the diagram: 1. Cabinet body; 11. Ventilation slot; 12. Lifting port; 13. Reserved slot; 14. Cabinet door; 2. Top plate; 21. Opening and closing plate; 22. Cylinder; 23. Fixing plate; 24. Support plate; 25. Ventilation base plate; 26. Protective frame; 27. First filter; 3. First connecting plate; 31. Mounting frame; 32. Second filter; 33. Second connecting plate; 34. Ventilation frame; 35. Air guide duct; 36. Sealing plate; 4. Protective shell; 41. Motor; 42. Inner rod; 43. Outer pipe; 44. Fan blade shaft; 45. Belt; 5. Air supply component; 51. Ventilation cavity; 52. Third filter; 53. Bottom air vent; 54. Side air vent; 55. Storage slot; 56. Spring; 6. Drainage cavity; 61. Connecting rod; 62. Rainproof plate; 7. Water tank; 8. Heat dissipation fins. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1:

[0033] Please see Figure 1-9 An outdoor box-type transformer includes a box body 1. The top of the box body 1 is provided with a lifting port 12, and the two sides of the lifting port 12 are provided with reserved slots 13. The top of the box body 1 is provided with a ventilation component for heat dissipation. The ventilation component includes a top plate 2, which is fixed to the top of the box body 1 and is hollow inside. The surfaces on both sides of the top plate 2 are hinged with opening and closing plates 21. A cylinder 22 is fixed to the top of the inner cavity of the top plate 2. A fixing plate 23 is fixed to the output shaft of the cylinder 22. A support plate 24 is fixed to the top of the fixing plate 23. A ventilation bottom plate 25 is fixed to the top of the support plate 24.

[0034] The support plate 24 and the ventilated base plate 25 are slidably connected to the output shaft of the cylinder 22. A protective frame 26 is fixed on the top of the ventilated base plate 25. A first filter 27 is fixed on the inner side of the protective frame 26. A first connecting plate 3 is slidably connected to the bottom of both sides of the top plate 2. A mounting frame 31 is fixed to the bottom of the vertical part of the first connecting plate 3. A second filter 32 is fixed inside the mounting frame 31. Ventilation slots 11 are opened on the surfaces of both sides of the box 1, and the ventilation slots 11 correspond to the second filter 32.

[0035] The bottom of the horizontal part of the first connecting plate 3 is fixed with the second connecting plate 33. The second connecting plate 33 is slidably connected to the top of the box 1. The bottom of the second connecting plate 33 is fixed with the ventilation frame 34. The ventilation frame 34 has an air guide groove 35 inside. A sealing plate 36 is fixed between two adjacent air guide grooves 35. The top of the top plate 2 is fixed with the protective shell 4. The protective shell 4 is fixed with the motor 41 inside. The output shaft of the motor 41 is fixed with the inner rod 42. The outer tube 43 is slidably connected to the outside of the inner rod 42. The two sides of the ventilation bottom plate 25 are rotatably connected with the fan blade shaft 44. The fan blade shaft 44 near the motor 41 is slidably connected to the outer tube 43. The two fan blade shafts 44 are externally connected with the belt 45, and the belt 45 is sleeved on the outside of the cylinder 22.

[0036] In actual operation, during non-rainy weather, the controller controls the cylinder 22 to return, causing the cylinder 22 to drive the fixed plate 23 to return, which in turn lifts the support plate 24 and the ventilated base plate 25 to return. This causes the ventilated base plate 25 to drive the protective frame 26 and the first filter 27 to move up along the vertical direction of the cylinder 22. During the upward movement, the protective frame 26 contacts the opening and closing plates 21 on both sides of the top plate 2 and pushes the opening and closing plates 21 to flip over until the cylinder 22 has fully returned. At this time, the two opening and closing plates 21 flip to a horizontal state, and the top plate 2 is in an open state.

[0037] Since the top of the enclosure 1 is provided with a lifting port 12, the interior of the enclosure 1 is connected to the outside through the lifting port 12 and the top plate 2, so that the hot air inside the enclosure 1 can convect and exchange heat with the outside air, thereby completing the heat dissipation operation inside the enclosure 1. Meanwhile, dust and salt spray particles in the outside air are filtered by the first filter 27, thereby ensuring the heat dissipation effect while reducing the impact of salt spray on the electrical components inside the enclosure 1.

[0038] Furthermore, during the return stroke of the fixed plate 23 supporting the support plate 24, the support plate 24 contacts the first connecting plate 3 during the return stroke and lifts the first connecting plate 3 to move upward along the vertical direction of the cylinder 22. This causes the first connecting plate 3 to drive the mounting frame 31 and the second connecting plate 33 to move upward. The mounting frame 31 and the second connecting plate 33 respectively drive the second filter 32 and the ventilation frame 34 to move upward synchronously. The ventilation frame 34 then drives the air guide slot 35 and the sealing plate 36 to move upward synchronously. After the cylinder 22 has completely returned, the air guide slot 35 stops moving upward. At this time, the air guide slot 35 and the ventilation slot 11 are connected, so that the interior of the box 1 is connected to the outside through the air guide slot 35 and the ventilation slot 11, so that outside air can enter the interior of the box 1 through the ventilation slot 11 and the air guide slot 35.

[0039] After the air guide slot 35 and the ventilation slot 11 are connected, the salt spray particles in the outside air will be filtered by the second filter 32, thereby reducing the impact of the salt spray particles on the electrical components inside the box 1. At the same time, since the air guide slot 35 is inclined and the opening of the air guide slot 35 is set towards the bottom of the inner cavity of the box 1, the outside air enters the inside of the box 1 and flows towards the bottom of the inner cavity of the box 1. Then, it can fully contact the hot air inside the box 1. Then, by utilizing the rising effect of the hot air, the hot air is discharged to the outside through the lifting port 12 and the top plate 2, thereby forming a circulating ventilation inside the box 1, thereby improving the heat dissipation efficiency.

[0040] Compared to traditional box-type transformers, which only have ventilation openings on both sides, this invention also allows ventilation at the top of the box 1. This not only increases the ventilation volume but also utilizes the principle of hot air rising to introduce outside air from the air guide slot 35 to the bottom of the box 1 cavity and exhaust it to the outside through the opening and closing plate 21, thereby improving the efficiency of heat transfer.

[0041] In order to ensure that the ventilation of the air guide slot 35 and the top plate 2 is not blocked by the second filter 32 and the first filter 27, the motor 41 can be started by the controller. The motor 41 drives the inner rod 42 and the outer tube 43 to rotate. The outer tube 43 drives one fan shaft 44 near the motor 41 to rotate. Under the action of the belt 45, the other fan shaft 44 is driven to rotate, thereby causing the fan shaft 44 to perform a ventilation operation on the inside of the box 1. This speeds up the efficiency of outside air entering the box 1 through the ventilation slot 11 and the air guide slot 35. In addition, the fan shaft 44 speeds up the efficiency of heat exchange between the hot air inside the box 1 and the outside air, thereby improving the heat dissipation efficiency.

[0042] During rainy weather or in the early morning or evening, the controller can control the cylinder 22 to push out. When the cylinder 22 pushes out, it drives the fixed plate 23 and the support plate 24 to push out simultaneously, which in turn drives the ventilation base plate 25 to push out simultaneously. That is, the support plate 24 descends along the vertical direction of the cylinder 22, which in turn drives the first connecting plate 3 to descend. The ventilation base plate 25 then drives the protective frame 26 and the first filter 27 to descend along the vertical direction of the cylinder 22. During the descent of the protective frame 26, the protective frame 26 gradually moves away from the opening and closing plate 21, which then causes the opening and closing plate 21 to rotate and cover both sides of the top plate 2 under the action of gravity, thereby sealing the top plate 2. At this time, outside air cannot enter the interior of the box 1 through the top plate 2.

[0043] During the process of the support plate 24 driving the first connecting plate 3 to descend, the first connecting plate 3 drives the mounting frame 31 and the second connecting plate 33 to descend synchronously, so that the mounting frame 31 drives the second filter 32 to descend, and the second connecting plate 33 drives the ventilation frame 34 and the sealing plate 36 to descend, until the horizontal part of the first connecting plate 3 descends to the top of the box 1 and is blocked by the box 1 and can no longer move. At this time, the descent stroke of the first connecting plate 3 reaches its maximum. After the descent reaches its maximum stroke, the air guide slot 35 and the openings of the ventilation slot 11 are staggered, and the sealing plate 36 seals the ventilation slot 11. At this time, the ventilation slot 11 is in a closed state.

[0044] That is, after the cylinder 22 is ejected, the top plate 2 and the ventilation slot 11 are simultaneously in a closed state, thereby preventing external moisture or salt spray particles from entering the interior of the housing 1, thus ensuring the working environment of the electrical components inside the housing 1.

[0045] It should be noted that all devices in this invention are controlled by a controller. The initial state of the ventilation slot 11 and the opening and closing plate 21 is the closed state, that is, the cylinder 22 is in the ejected state. The vertical part of the first connecting plate is slidably connected to the top plate 2. Since the inner rod 42 and the outer tube 43 are slidably connected, and the outer tube 43 is slidably connected to the fan blade shaft 44, when the ventilation base plate 25 drives the fan blade shaft 44 to move, it does not affect the motor 41 driving the inner rod 42 through the outer tube 43 and the fan blade shaft 44. This allows the fan blade shaft 44 to rotate and exhaust air at any set height, thereby ensuring the efficiency of hot air exhaust from the box 1.

[0046] Example 2:

[0047] Air supply components 5 are slidably connected to both sides of the housing 1. The air supply components 5 have a ventilation cavity 51 inside. A third filter 52 is fixed on the side of the ventilation cavity 51 near the housing 1. A bottom air outlet 53 is opened on the side of the bottom plate of the air supply components 5 near the third filter 52. A side air outlet 54 is opened on the surface of the air supply components 5 away from the housing 1. A storage groove 55 is opened on the vertical part of the air supply components 5 away from the side air outlet 54. A spring 56 is fixed inside the storage groove 55. One end of the spring 56 is fixed to the inner wall of the housing 1.

[0048] Specifically, based on Embodiment 1, when the cylinder 22 is pushed out, that is, the cylinder 22 drives the fixed plate 23 and the support plate 24 to be pushed out, so that the support plate 24 drives the ventilation base plate 25 to descend along the vertical direction of the cylinder 22. During the descent, the ventilation base plate 25 contacts the air supply component 5 and is guided by the inclined side of the vertical part of the air supply component 5, so that the air supply component 5 slides on the inner wall of the box 1, so that the two air supply components 5 extend from the inside of the box 1 to the outside of the box 1. That is, in rainy weather or during the morning and evening hours, the two air supply components 5 extend outward from both sides of the box 1 respectively.

[0049] When one end of the horizontal part of the air supply component 5 extends to the outside of the housing 1, the hot air inside the housing 1 enters the ventilation cavity 51 through the side air vent 54 under the action of the fan blade shaft 44 rotation, and is discharged to the outside through the third filter 52 and the bottom air vent 53. At the same time, under the action of the third filter 52, the probability of rainwater and salt spray particles entering the ventilation cavity 51 can be reduced, so that the present invention can provide stable heat dissipation in rainy weather or during periods of high salt spray concentration.

[0050] Furthermore, as the ventilation base plate 25 compresses the two air supply components 5 during its descent, the two air supply components 5 maintain their outward extension while the ventilation base plate 25 and the two air supply components 5 support the inner wall of the housing 1, thereby improving the earthquake resistance of the housing 1 during rainy weather.

[0051] It should be noted that the bottom air vent 53 is located at the bottom of the air supply component 5, so rainwater will not enter the interior of the ventilation cavity 51 through the bottom air vent 53. At the same time, after the cylinder 22 returns, the air supply component 5 can be reset under the action of the spring 56, that is, when it is not rainy, the air supply component 5 is retracted into the interior of the housing 1.

[0052] Example 3:

[0053] A drainage cavity 6 is provided on the surface of the top plate 2 away from the cabinet door 14. A connecting rod 61 is slidably connected inside the drainage cavity 6. A rainproof plate 62 is fixed to the top of the vertical part of the connecting rod 61. One end of the horizontal part of the connecting rod 61 is fixed to the air supply component 5. A water storage tank 7 is fixed on the surface of the box body 1 near the drainage cavity 6. The water storage tank 7 is located below the drainage cavity 6. A heat dissipation fin 8 is fixed to the bottom of one of the air supply components 5 near the drainage cavity 6. The fins of the heat dissipation fin 8 pass through the box body 1 and the water storage tank 7, and one end of the heat dissipation fin 8 is located inside the water storage tank 7.

[0054] Specifically, based on Embodiment 1 and Embodiment 2, when the ventilation base plate 25 pushes the air supply component 5 during its descent, one of the air supply components 5 near the water storage tank 7 drives the connecting rod 61 to move synchronously, causing the connecting rod 61 to slide inside the drainage cavity 6, which in turn causes the connecting rod 61 to drive the rainproof plate 62 to slide. During the sliding process, the rainproof plate 62 releases the seal on the drainage cavity 6.

[0055] During rainy weather, after rainwater falls on the top of the top plate 2, it can slide down the top plate 2 into the interior of the drainage cavity 6, and then the rainwater slides down the drainage cavity 6 into the interior of the water storage tank 7.

[0056] As the air supply component 5 extends near the water storage tank 7, it drives the heat dissipation fins 8 to move synchronously, allowing the fins of the heat dissipation fins 8 to insert into the interior of the water storage tank 7. When rainwater is collected inside the water storage tank 7, the heat on the surface of the heat dissipation fins 8 can be carried away by the rainwater, thereby cooling the heat dissipation fins 8. Subsequently, the heat inside the box 1 is transferred to the heat dissipation fins 8, and the fins of the heat dissipation fins 8 transfer the heat to the rainwater inside the water storage tank 7, further improving the heat dissipation effect inside the box 1 during rainy days.

[0057] It should be noted that the fins of the heat dissipation fins 8 are slidably sealed to the inner wall of the housing 1, meaning that rainwater in the water storage tank 7 cannot enter the interior of the housing 1 through the gap where the heat dissipation fins 8 are snapped together with the housing 1. At the same time, the bottom of the water storage tank 7 is provided with a drain outlet, which can be used to drain the rainwater in the water storage tank 7. The first filter 27, the second filter 32 and the third filter 52 are all salt spray filters.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outdoor box-type transformer, comprising a box body (1), wherein a lifting port (12) is provided on the top of the box body (1), and reserved slots (13) are provided on both sides of the lifting port (12), characterized in that: The top of the housing (1) is provided with a ventilation assembly for heat dissipation; The ventilation assembly includes a top plate (2), which is fixed to the top of the box (1) and the interior of the top plate (2) is hollow. The surfaces on both sides of the top plate (2) are hinged with opening and closing plates (21). A cylinder (22) is fixed to the top of the inner cavity of the top plate (2). A fixing plate (23) is fixed to the output shaft of the cylinder (22). A support plate (24) is fixed to the top of the fixing plate (23). A ventilation base plate (25) is fixed to the top of the support plate (24). The support plate (24) and the ventilated base plate (25) are slidably connected to the output shaft of the cylinder (22). A protective frame (26) is fixed on the top of the ventilated base plate (25), and a first filter (27) is fixed on the inner side of the protective frame (26). The bottom of both sides of the top plate (2) is slidably connected to a first connecting plate (3), and a mounting bracket (31) is fixed to the bottom of the vertical part of the first connecting plate (3). A second filter (32) is fixed inside the mounting bracket (31).

2. The outdoor box-type transformer according to claim 1, characterized in that: Ventilation slots (11) are provided on both sides of the box body (1), and the ventilation slots (11) correspond to the second filter (32).

3. The outdoor box-type transformer according to claim 2, characterized in that: A second connecting plate (33) is fixed to the bottom of the horizontal part of the first connecting plate (3). The second connecting plate (33) is slidably connected to the top of the box (1). A ventilation frame (34) is fixed to the bottom of the second connecting plate (33). An air guide groove (35) is opened inside the ventilation frame (34), and a sealing plate (36) is fixed between two adjacent air guide grooves (35).

4. The outdoor box-type transformer according to claim 3, characterized in that: The top of the top plate (2) is fixed with a protective shell (4), and a motor (41) is fixed inside the protective shell (4). The output shaft of the motor (41) is fixed with an inner rod (42). An outer tube (43) is slidably connected to the outside of the inner rod (42). Fan blade shafts (44) are rotatably connected to both sides of the ventilation base plate (25), and the fan blade shaft (44) near the motor (41) is slidably connected to the outer tube (43).

5. The outdoor box-type transformer according to claim 4, characterized in that: The two fan blade shafts (44) are externally connected to a belt (45), and the belt (45) is sleeved on the outside of the cylinder (22).

6. The outdoor box-type transformer according to claim 5, characterized in that: Air supply components (5) are slidably connected to both sides of the housing (1). A ventilation cavity (51) is opened inside the air supply component (5). A third filter (52) is fixed on the side of the ventilation cavity (51) near the housing (1). A bottom air outlet (53) is opened on the side of the bottom plate of the air supply component (5) near the third filter (52). A side air outlet (54) is opened on the surface of the air supply component (5) away from the housing (1). The air supply component (5) has a storage groove (55) on the side away from the side air outlet (54) on the vertical part. A spring (56) is fixed inside the storage groove (55), and one end of the spring (56) is fixed to the inner wall of the box (1).

7. The outdoor box-type transformer according to claim 6, characterized in that: The top plate (2) has a drainage cavity (6) on the side away from the cabinet door (14). A connecting rod (61) is slidably connected inside the drainage cavity (6). A rainproof plate (62) is fixed to the top of the vertical part of the connecting rod (61). One end of the horizontal part of the connecting rod (61) is fixed to the air supply component (5).

8. The outdoor box-type transformer according to claim 7, characterized in that: A water storage tank (7) is fixed to the surface of the box (1) near the drain cavity (6), and the water storage tank (7) is located below the drain cavity (6).

9. The outdoor box-type transformer according to claim 8, characterized in that: in, A heat dissipation fin (8) is fixed to the bottom of an air supply component (5) near the drainage chamber (6). The fins of the heat dissipation fin (8) pass through the box body (1) and the water storage tank (7), and one end of the heat dissipation fin (8) is located inside the water storage tank (7).

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