Outdoor transformer substation

Abstract

The invention relates to the technical field of transformer substations, and discloses an outdoor transformer substation which comprises a transformer substation box body, a supporting pipe is fixed to the top of the transformer substation box body, a sunshade frame is fixed to the top of the supporting pipe, air cylinders are fixed to the inner walls of the two sides of the sunshade frame, and shielding plates are fixed to output shafts of the air cylinders. The outdoor transformer substation comprises a transformer substation box body, a shielding plate is arranged in the transformer substation box body, a sealing plate is fixed to the side, away from the air cylinder, of the shielding plate, a heat dissipation assembly used for heat dissipation is arranged on the surface of the sealing plate, the heat dissipation assembly comprises a supporting frame, and the supporting frame is fixed to the sealing plate and is in sliding connection with the transformer substation box body. The shielding plate is driven by the air cylinder to drive the closing plate to eject outwards, and the shielding plate and the closing plate shield the cabinet door of the transformer substation box body, so that rainwater is prevented from entering the transformer substation box body through the cabinet door of the transformer substation box body, and the convenience and safety of first-aid repair are improved.

Description

Technical Field

[0001] This invention relates to the field of substation technology, specifically to an outdoor substation. Background Technology

[0002] A substation is a location in a power system that transforms voltage and current, receives electrical energy, and distributes electrical energy. Substations located within power plants are step-up substations, whose function is to step up the voltage of electrical energy generated by generators and feed it into the high-voltage power grid. Outdoor substations are generally prefabricated substations. Substation inspection and monitoring involves on-duty personnel periodically inspecting the equipment for any abnormalities in its appearance, such as color changes, the presence of foreign objects, whether meter readings are normal, whether the equipment sounds normal, whether there are any unusual odors, whether the temperature of equipment that can be touched is normal, and measuring changes in the operating parameters of electrical equipment during operation, in order to determine whether the equipment is operating normally.

[0003] Existing outdoor prefabricated substations typically have a cabinet door on the front of the enclosure, through which equipment is installed. In good weather, maintenance personnel can directly open the cabinet door to perform maintenance and repairs on the substation. However, during emergency repairs in heavy rain, once the cabinet door is opened, rainwater will enter the enclosure through the door, affecting equipment maintenance and making emergency repairs more difficult and risky. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides an outdoor substation, which solves the problems mentioned in the background art.

[0005] The present invention provides the following technical solution: an outdoor substation, including a substation box, a support pipe fixed to the top of the substation box, a sunshade fixed to the top of the support pipe, cylinders fixed to the inner walls on both sides of the sunshade, a baffle plate fixed to the output shaft of the cylinder, a sealing plate fixed to the side of the baffle plate away from the cylinder, and a heat dissipation component for heat dissipation on the surface of the sealing plate.

[0006] The heat dissipation assembly includes a support frame, which is fixed to the enclosure plate and slidably connected to the substation enclosure. A hollow cavity is formed in the middle of the support frame. A water storage cavity is formed inside the support frame on the side away from the enclosure plate, and a heat dissipation cavity is formed inside the support frame on the side closer to the enclosure plate. A water inlet is formed on the top plate of the water storage cavity. A filter hole is formed at the end of the water storage cavity away from the enclosure plate. Air inlets are formed on both sides of the heat dissipation cavity. Heat dissipation fins are fixed inside the support frame, and the two ends of the heat dissipation fins are located inside the water storage cavity and the heat dissipation cavity, respectively.

[0007] Optionally, the substation enclosure has a base at the bottom, ventilation openings on both sides, and a maintenance door is hinged to the top of the sunshade. The substation enclosure, support pipe, and sunshade are interconnected, and the baffle is slidably connected to the sunshade.

[0008] Optionally, the two ends of the inner wall of the support tube away from the sealing plate are fixed with fixing rings, and the two ends of the inner wall of the support tube near the sealing plate are provided with mounting grooves. The fan blade roller is rotatably connected inside the fixing rings, and the central axis of the fan blade roller is slidably connected to the mounting groove.

[0009] Optionally, a belt is connected to the outside of the two fan blade roller central shafts, and a motor is fixed to the end of one of the fan blade roller central shafts.

[0010] Optionally, rubber pads are fixed on both sides of the top plate of the substation box cavity, and the bottom of the rubber pads abuts against the top of the support frame.

[0011] Optionally, the substation enclosure is fixed with mounting brackets on both sides of its surface, with the mounting brackets located on the side of the substation enclosure away from the enclosure plate. A heat sink assembly is fixed inside the mounting bracket, with one end of the heat sink assembly passing through the mounting bracket and slidingly and sealingly connected to the substation enclosure.

[0012] Optionally, a pedal is rotatably connected to the side of the substation enclosure surface near the fixing frame, and a pad assembly is fixed to the surface of one of the fixing frames. The pedal is fixed to the surface of the substation enclosure by a locking bolt at one end of the pad assembly.

[0013] Optionally, the two ends of the bottom of the sunshade away from the closed plate are fixed with a first air duct, and the two ends of the bottom of the sunshade near the closed plate are fixed with a second air duct, and the openings of the adjacent first air duct and second air duct are relatively staggered.

[0014] Rotary shafts are rotatably connected to both sides of the top of the substation enclosure. A first fan blade is fixed on the surface of the rotating shaft. A bearing is fixed on the surface of the rotating shaft below the first fan blade, and the bearing abuts against the top of the substation enclosure. A second fan blade is fixed on the surface of the rotating shaft below the bearing. The second fan blade is located inside the substation enclosure, and the first fan blade is located outside the substation enclosure.

[0015] Optionally, a rainproof frame is fixed to the surface of the substation enclosure near the ventilation opening. An air inlet channel is opened inside the rainproof frame, and a guide plate is fixed to the inner wall of the air inlet channel. The substation enclosure is connected to the outside world through the ventilation opening and the air inlet channel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This outdoor substation, when repairing the substation enclosure during heavy rain, uses a cylinder to drive the shielding plate to push the sealing plate outward. The shielding plate and the sealing plate together shield the cabinet door of the substation enclosure, thus preventing rainwater from entering the interior of the substation enclosure through the cabinet door, thereby improving the convenience and safety of emergency repairs.

[0018] 2. This substation, used outdoors, uses a sealing plate to close the gaps in the substation enclosure door. Rainwater is collected by the heat dissipation components and dissipated by the heat dissipation fins, thereby improving the heat dissipation effect inside the substation enclosure. At the same time, rainwater is collected by the fixing frame and dissipated by the heat dissipation fin assembly, further improving the heat dissipation effect inside the substation enclosure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a side view of the structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the extended state of the shielding plate of the present invention;

[0022] Figure 4 This is an internal structural view of the substation enclosure of the present invention;

[0023] Figure 5 This is a schematic diagram of the support frame and fixing frame of the present invention;

[0024] Figure 6 This is a cross-sectional view of the heat dissipation component of the present invention;

[0025] Figure 7 This is a cross-sectional view of the structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the first air duct, the second air duct, and the rotating shaft of the present invention;

[0027] Figure 9 This is a schematic diagram of the fixed ring assembly.

[0028] In the diagram: 1. Substation enclosure; 11. Ventilation opening; 2. Support pipe; 21. Sunshade; 22. Cylinder; 23. Baffle plate; 24. Enclosure plate; 25. Inspection door; 3. Support frame; 31. Hollow cavity; 32. Water storage chamber; 33. Heat dissipation chamber; 34. Water inlet; 35. Filter hole; 36. Air inlet; 37. Heat dissipation fins; 4. Fixing ring assembly; 41. Mounting groove; 42. Fan blade roller; 43. Belt; 44. Motor; 5. Rubber pad; 6. Fixing frame; 61. Heat dissipation fin assembly; 7. Pedal; 71. Pad assembly; 72. Locking bolt; 8. First air duct; 81. Second air duct; 82. Rotating shaft; 83. First fan blade; 84. Bearing; 85. Second fan blade; 9. Rainproof frame; 91. Air inlet channel; 92. Guide plate. Detailed Implementation

[0029] 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.

[0030] Example 1:

[0031] Please see Figure 1-9 An outdoor substation includes a substation enclosure 1, a support pipe 2 fixed to the top of the substation enclosure 1, a sunshade 21 fixed to the top of the support pipe 2, cylinders 22 fixed to the inner walls on both sides of the sunshade 21, a baffle plate 23 fixed to the output shaft of the cylinder 22, and a sealing plate 24 fixed to the side of the baffle plate 23 away from the cylinder 22. The surface of the sealing plate 24 is provided with a heat dissipation component for heat dissipation.

[0032] The heat dissipation assembly includes a support frame 3, which is fixed to the enclosure plate 24 and slidably connected to the substation box 1. A hollow cavity 31 is provided in the middle of the support frame 3. A water storage cavity 32 is provided inside the support frame 3 on the side away from the enclosure plate 24. A heat dissipation cavity 33 is provided inside the support frame 3 on the side close to the enclosure plate 24. A water inlet channel 34 is provided on the top plate of the water storage cavity 32. A filter hole 35 is provided at the end of the water storage cavity 32 away from the enclosure plate 24. Air inlets 36 are provided on both sides of the heat dissipation cavity 33. Heat dissipation fins 37 are fixed inside the support frame 3, and the two ends of the heat dissipation fins 37 are located inside the water storage cavity 32 and the heat dissipation cavity 33, respectively.

[0033] The substation enclosure 1 has a base at the bottom and ventilation openings 11 on both sides. The top of the sunshade 21 is hinged with a maintenance door 25. The substation enclosure 1, support pipe 2 and sunshade 21 are interconnected. The baffle plate 23 is slidably connected to the sunshade 21. Rubber pads 5 are fixed on both sides of the top plate of the inner cavity of the substation enclosure 1. The bottom of the rubber pads 5 abuts against the top of the support frame 3.

[0034] In actual operation, when the present invention needs to be maintained and repaired in a rainstorm, the cylinder 22 is first started by the controller, so that the cylinder 22 is pushed out, so that the cylinder 22 drives the baffle plate 23 to slide inside the sunshade 21 and push outward, so that the baffle plate 23 drives the sealing plate 24 to move along the horizontal direction of the cylinder 22, so that the sealing plate 24 is released from the contact state with the surface of the substation box 1.

[0035] At this time, maintenance personnel can open the cabinet door of substation box 1 and carry out maintenance and repair on its internal equipment. During the repair process, the shielding plate 23 and the sealing plate 24 shield the cabinet door of substation box 1, preventing rainwater from entering the interior of substation box 1 through the cabinet door, thereby improving the convenience and safety of equipment repair.

[0036] Specifically, after maintenance is completed, the controller can control the cylinder 22 to return, causing the cylinder 22 to drive the baffle plate 23 and the sealing plate 24 to return, so that the sealing plate 24 fits against the door of the substation enclosure 1. The sealing plate 24 forms a protective barrier for the gap of the door of the substation enclosure 1, thereby preventing rainwater from entering the interior of the substation enclosure 1 through the gap of the door. This improves the dryness of the interior of the substation enclosure 1 during rainy days, avoids the impact of rainwater on the equipment, and improves the safety of the equipment inside the substation enclosure 1 during rainy days.

[0037] Furthermore, during the start-up process of cylinder 22, that is, during the displacement of cylinder 22 driving the sealing plate 24, the sealing plate 24 drives the support frame 3 to move synchronously inside the substation box 1. When the sealing plate 24 is in contact with the surface of the cabinet door of the substation box 1, the sealing plate 24 drives the support frame 3 to move towards the direction of cylinder 22, so that the end of the support frame 3 near the water storage chamber 32 slides out from the inside of the substation box 1. At this time, the end of the support frame 3 near the water storage chamber 32 extends to the outside of the substation box 1.

[0038] When the water storage chamber 32 extends to the outside of the substation enclosure 1, rainwater falls on the surface of the water inlet 34 and enters the water storage chamber 32 through the water inlet 34, dripping onto the surface of the end of the heat dissipation fins 37. Since one end of the heat dissipation fins 37 is located inside the water storage chamber 32, and the fin portion of the heat dissipation fins 37 is located inside the hollow cavity 31, the heat inside the substation enclosure 1 is transferred to the fin portion of the heat dissipation fins 37. Under the action of the heat dissipation fins 37, the heat of the fin portion of the heat dissipation fins 37 is transferred to the end of the heat dissipation fins 37 located in the water storage chamber 32, and the rainwater in the water storage chamber 32 absorbs the heat of the heat dissipation fins 37; thus achieving the effect of heat dissipation inside the substation enclosure 1.

[0039] Meanwhile, the rainwater collected in the water storage chamber 32 is discharged to the outside under the action of the filter hole 35, so that the rainwater in the water storage chamber 32 is in a state of flowing water. That is, the rainwater enters the interior of the water storage chamber 32 through the water inlet 34, absorbs and removes the heat from the port of the heat dissipation fin 37, and is discharged to the outside through the filter hole 35, thereby improving the heat dissipation efficiency of the heat dissipation fin 37.

[0040] Furthermore, when there is sufficient sunlight, the controller can control the cylinder 22 to push out, so that the cylinder 22 drives the shielding plate 23 and the sealing plate 24 to shield the substation box 1 again. At this time, the sunshade 21 and the shielding plate 23 shield the substation box 1, which can effectively reduce the impact of sunlight on the substation box 1, reduce the heat radiation of sunlight on the substation box 1, and thus reduce the surface and internal temperature of the substation box 1, thereby improving the operating environment of the equipment inside the substation box 1.

[0041] Meanwhile, under the action of the sealing plate 24, the end of the support frame 3 near the heat dissipation cavity 33 extends outward from the inside of the substation box 1, while the end of the support frame 3 near the water storage cavity 32 is retracted into the inside of the substation box 1. At this time, the heat adsorbed by the fins of the heat dissipation fins 37 is transferred to both ends of the heat dissipation fins 37. The end of the heat dissipation fins 37 located in the heat dissipation cavity 33 is exposed to the air under the action of the air inlet 36. At this time, the flowing air carries away the heat from the port of the heat dissipation fins 37, thereby completing the heat exchange and further improving the efficiency of heat dissipation and cooling inside the substation box 1.

[0042] It should be noted that all devices in this invention are controlled by a controller. Optionally, a rain sensor can be installed on the top of the sunshade 21, and the rain sensor controls the cylinder 22. The initial state of the cylinder 22 is the ejected state, that is, the sealing plate 24 and the baffle plate 23 form a shield for the substation box 1. When the end of the support frame 3 near the water storage chamber 32 is retracted into the interior of the substation box 1, the rubber pad 5 seals the water inlet 34, thereby preventing moisture in the water storage chamber 32 from entering the interior of the substation box 1.

[0043] Example 2:

[0044] Fixed rings 4 are fixed at both ends of the inner wall of the support tube 2 away from the sealing plate 24. Mounting grooves 41 are opened at both ends of the inner wall of the support tube 2 near the sealing plate 24. Fan blade rollers 42 are rotatably connected inside the fixed rings 4, and the central shaft of the fan blade rollers 42 is slidably connected to the mounting grooves 41. A belt 43 is connected to the outside of the central shafts of the two fan blade rollers 42. A motor 44 is fixed to the outside of the central shaft of one of the fan blade rollers 42. Fixed brackets 6 are fixed on both sides of the surface of the substation box 1, and the fixed brackets 6 are located on the side of the substation box 1 away from the sealing plate 24. A heat sink 61 is fixed inside the fixed bracket 6, and one end of the heat sink 61 passes through the fixed bracket 6 and is slidably sealed to the substation box 1.

[0045] Specifically, when heat dissipation is required inside the substation enclosure 1, the controller can start the motor 44, which drives one of the fan blade rollers 42 to rotate. Under the action of the belt 43, the other fan blade roller 42 rotates synchronously. Then, through the rotation of the two motors 44, the interior of the substation enclosure 1 is ventilated, which increases the air flow rate inside the substation enclosure 1 and thus improves the heat exchange efficiency inside the substation enclosure 1.

[0046] Furthermore, based on Embodiment 1, when repairing equipment inside the substation enclosure 1 during a rainstorm, i.e. when the cylinder 22 drives the shielding plate 23 and the sealing plate 24 to shield the substation enclosure 1, the end of the support frame 3 near the water storage chamber 32 is retracted into the interior of the substation enclosure 1. At this time, the fixing frame 6 is exposed to the air, which allows rainwater to directly enter the interior of the fixing frame 6.

[0047] Since one end of the heat sink assembly 61 is located inside the substation enclosure 1 and absorbs some heat, while the other end is located inside the mounting bracket 6, when rainwater enters the mounting bracket 6, the rainwater carries away the heat from the surface of the heat sink assembly 61, thereby further improving the efficiency of heat dissipation inside the substation enclosure 1 during rainy days.

[0048] It should be noted that the bottom of the fixing frame 6 is provided with a drain outlet, and when the end of the support frame 3 near the water storage chamber 32 carries rainwater into the interior of the substation box 1, the rainwater in the water storage chamber 32 can be discharged into the interior of the fixing frame 6 through the filter hole 35, thereby increasing the water storage speed in the fixing frame 6 and thus improving its heat dissipation efficiency for the heat sink assembly 61.

[0049] In this invention, the effect of using rainwater for heat dissipation is based on heavy rain weather. That is, when the rainfall is small, there is no need to avoid rain and waterproof, but when the rainfall is large, it is necessary to avoid rain and waterproof. At the same time, the greater the rainfall, the greater the water storage speed in the water storage chamber 32 and the fixing frame 6 is than the drainage speed, and thus the stronger the heat dissipation effect in the substation box 1.

[0050] Example 3:

[0051] A pedal 7 is rotatably connected to the side of the substation enclosure 1 near the fixed frame 6. A pad assembly 71 is fixed to the surface of one of the fixed frames 6. The end of the pedal 7 near the pad assembly 71 is fixed to the surface of the substation enclosure 1 by locking bolts 72. The two ends of the bottom of the sunshade 21 away from the closed plate 24 are fixed with first air ducts 8, and the two ends of the bottom of the sunshade 21 near the closed plate 24 are fixed with second air ducts 81. The openings of the adjacent first air ducts 8 and second air ducts 81 are relatively staggered.

[0052] Rotating shafts 82 are rotatably connected to both sides of the top of the substation enclosure 1. A first fan blade 83 is fixed on the surface of the rotating shaft 82. A bearing 84 is fixed on the surface of the rotating shaft 82 below the first fan blade 83, and the bearing 84 abuts against the top of the substation enclosure 1. A second fan blade 85 is fixed on the surface of the rotating shaft 82 below the bearing 84. The second fan blade 85 is located inside the substation enclosure 1, and the first fan blade 83 is located outside the substation enclosure 1. A rainproof frame 9 is fixed on the surface of the substation enclosure 1 near the ventilation opening 11. An air inlet channel 91 is opened inside the rainproof frame 9. A guide plate 92 is fixed on the inner wall of the air inlet channel 91. The substation enclosure 1 is connected to the outside through the ventilation opening 11 and the air inlet channel 91.

[0053] Specifically, based on Embodiment 1 and Embodiment 2, when the motor 44 starts, it exhausts the air inside the substation box 1, causing the hot air inside the substation box 1 to be discharged into the sunshade 21 at an accelerated rate, while the outside air enters the interior of the substation box 1 at an accelerated rate through the ventilation port 11, thereby accelerating the air circulation inside the substation box 1.

[0054] At the same time, according to Figure 7 As shown, since the support frame 3 is located directly below the fan blade roller 42, that is, the fin part of the heat dissipation fin 37 is also located directly below the fan blade roller 42, the heat absorbed by the fin part of the heat dissipation fin 37 is further discharged to the outside under the action of the motor 44.

[0055] After the motor 44 draws out the air, the air inside the sunshade 21 is discharged to the outside through the first air duct 8 and the second air duct 81, which in turn blows air onto the first fan blade 83. This causes the first fan blade 83 to drive the rotating shaft 82, which rotates under the action of the bearing 84. This causes the rotating shaft 82 to drive the second fan blade 85 to rotate, which in turn causes the second fan blade 85 to rotate inside the substation box 1. This further increases the airflow speed inside the substation box 1, thereby improving the heat exchange efficiency.

[0056] Meanwhile, the second fan blade 85 can further draw outside air into the interior of the substation box 1 through the air intake channel 91, increasing the speed of air circulation. When the outside wind speed is too high, the wind speed can also increase the rotation speed of the first fan blade 83, thereby improving the stability of the rotation of the first fan blade 83 under the action of wind speed and the blowing of the first air duct 8 and the second air duct 81.

[0057] When it is necessary to inspect equipment components such as the fan blade shaft 42 located inside the sunshade 21, the locking bolt 72 can be turned to release the locking bolt 72 from the pedal 7, so that the pedal 7 flips to the top of the pad assembly 71 under the action of gravity. Then, maintenance personnel can climb to the top of the sunshade 21 through the horizontally placed pedal 7 and then open the maintenance hatch 25.

[0058] It should be noted that the air outlets of the adjacent first air duct 8 and second air duct 81 are relatively staggered, which improves the rotation efficiency of the first fan blade 83. The air inlet channel 91 is vertical, which can maintain the supply of outside air to the substation box 1 while preventing rainwater from entering the interior of the substation box 1 through the ventilation port 11. At the same time, the guide plate 92 can filter the dust and sand carried in the air, reduce the probability of dust and sand entering the interior of the substation box 1, and improve the working environment of the equipment inside the substation box 1.

[0059] 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 substation, comprising a substation enclosure (1), characterized in that: The top of the substation enclosure (1) is fixed with a support pipe (2), the top of the support pipe (2) is fixed with a sunshade (21), the inner walls on both sides of the sunshade (21) are fixed with cylinders (22), the output shaft of the cylinder (22) is fixed with a baffle plate (23), the side of the baffle plate (23) away from the cylinder (22) is fixed with a sealing plate (24), and the surface of the sealing plate (24) is provided with a heat dissipation component for heat dissipation. The heat dissipation assembly includes a support frame (3), which is fixed to the sealing plate (24) and slidably connected to the substation box (1). A hollow cavity (31) is provided in the middle of the support frame (3). A water storage cavity (32) is provided inside the support frame (3) on the side away from the sealing plate (24). A heat dissipation cavity (33) is provided inside the support frame (3) on the side close to the sealing plate (24). A water inlet channel (34) is provided on the top plate of the water storage cavity (32). A filter hole (35) is provided at the end of the water storage cavity (32) away from the sealing plate (24). Air inlets (36) are provided on both sides of the heat dissipation cavity (33). Heat dissipation fins (37) are fixed inside the support frame (3), and the two ends of the heat dissipation fins (37) are located inside the water storage cavity (32) and the heat dissipation cavity (33), respectively.

2. The outdoor substation according to claim 1, characterized in that: The substation enclosure (1) has a base at the bottom and ventilation openings (11) on both sides. The top of the sunshade (21) is hinged with a maintenance door (25). The substation enclosure (1), support pipe (2) and sunshade (21) are interconnected. The baffle plate (23) is slidably connected to the sunshade (21).

3. The outdoor substation according to claim 2, characterized in that: The support tube (2) has a fixing ring assembly (4) fixed at both ends of the inner wall away from the sealing plate (24). The support tube (2) has an installation groove (41) at both ends of the inner wall near the sealing plate (24). The fixing ring assembly (4) is rotatably connected to a fan blade roller (42), and the central axis of the fan blade roller (42) is slidably connected to the installation groove (41).

4. The outdoor substation according to claim 3, characterized in that: A belt (43) is connected to the outside of the central shaft of the two fan blade rollers (42), and a motor (44) is fixed to the end of the central shaft of one of the fan blade rollers (42).

5. The outdoor substation according to claim 4, characterized in that: Rubber pads (5) are fixed on both sides of the top plate of the inner cavity of the substation box (1), and the bottom of the rubber pads (5) abuts against the top of the support frame (3).

6. The outdoor substation according to claim 5, characterized in that: The substation enclosure (1) has a fixing frame (6) fixed on both sides of its surface, and the fixing frame (6) is located on the side of the substation enclosure (1) away from the enclosure plate (24). The fixing frame (6) has a heat sink assembly (61) fixed inside, and one end of the heat sink assembly (61) passes through the fixing frame (6) and is slidably sealed to the substation enclosure (1).

7. The outdoor substation according to claim 6, characterized in that: A pedal (7) is rotatably connected to the side of the substation enclosure (1) near the fixing frame (6). A pad assembly (71) is fixed to the surface of one of the fixing frames (6). The pedal (7) is fixed to the surface of the substation enclosure (1) at one end near the pad assembly (71) by a locking bolt (72).

8. The outdoor substation according to claim 7, characterized in that: The sunshade (21) has a first air duct (8) fixed at both ends on the side away from the closed plate (24) at the bottom, and a second air duct (81) fixed at both ends on the side close to the closed plate (24) at the bottom, and the openings of the adjacent first air duct (8) and second air duct (81) are staggered relative to each other. Rotating shafts (82) are rotatably connected to both sides of the top of the substation enclosure (1). A first fan blade (83) is fixed on the surface of the rotating shaft (82). A bearing (84) is fixed on the surface of the rotating shaft (82) below the first fan blade (83), and the bearing (84) abuts against the top of the substation enclosure (1). A second fan blade (85) is fixed on the surface of the rotating shaft (82) below the bearing (84). The second fan blade (85) is located inside the substation enclosure (1), and the first fan blade (83) is located outside the substation enclosure (1).

9. The outdoor substation according to claim 8, characterized in that: The substation enclosure (1) has a rainproof frame (9) fixed on the surface near the ventilation opening (11). The rainproof frame (9) has an air inlet channel (91) inside. The inner wall of the air inlet channel (91) is fixed with a guide plate (92). The substation enclosure (1) is connected to the outside world through the ventilation opening (11) and the air inlet channel (91).

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