Wind turbine nacelle dry-type transformer

Abstract

The present invention discloses a dry-type transformer in a wind turbine cabin, and relates to the technical field of dry-type transformers. The present invention comprises square steel, a dry-type transformer body is fixedly installed on the top of the square steel, an L-shaped bracket is fixedly installed on the side wall of the square steel, and two vertical driving screws are rotatably provided at one end of the bracket away from the square steel in a horizontal position, and the top of the driving screw is rotatably arranged on the top of the bracket. In the present invention, a first motor drives the screw to move the fan up and down, and blows air to the upper and lower ends of the surface of the dry-type transformer body for heat dissipation, which makes up for the problem of poor natural heat dissipation effect and realizes effective vertical heat dissipation. The second motor drives a series of structures such as a rotating plate and a push block, so that the fan on the placement plate can swing repeatedly while moving up and down, thereby increasing the range of blowing air and heat dissipation on the surface of the dry-type transformer, and can more comprehensively and efficiently handle the heat accumulated on the surface, thereby improving the heat dissipation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of dry-type transformers, in particular to a dry-type transformer in a wind turbine generator cabin. Background Art

[0002] Currently, wind power, as a clean, renewable energy source, is developing rapidly around the world. Due to its abundant resources, stable wind speeds, minimal negative environmental impact, and the ability to manufacture larger units, wind power can be developed on a large scale. Dry-type transformers are now installed inside the nacelle, which not only reduces the overall unit footprint but also avoids the safety issues associated with installing the step-up power transformer at a lower level.

[0003] At present, dry-type transformers are installed in cabins and installed centrally when in use, which leads to great problems in the heat dissipation of the dry-type transformers themselves. The current dry-type transformers are cooled and dissipated by fans set up through internal channels and combined with external natural air cooling. However, the external natural heat dissipation effect is very effective, which will affect the actual use of the dry-type transformers.

[0004] In response to the above problems, the inventors proposed a wind turbine generator cabin dry-type transformer to solve the above problems. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a wind turbine cabin dry-type transformer.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: a dry-type transformer in a wind turbine cabin comprises square steel, a dry-type transformer body is fixedly installed on the top of the square steel, an L-shaped bracket is fixedly installed on the side wall of the square steel, the bracket is in a horizontal position and is rotatably provided with two vertical drive screws at one end away from the square steel, the top of the drive screw is rotatably provided on the top of the bracket, a horizontally arranged movable plate is commonly threadedly inserted between the two drive screws, a placement plate is rotatably provided on the end of the movable plate away from the screw, a plurality of fans distributed at equal intervals are fixedly installed on the placement plate and the fans are arranged at an angle, an L-shaped connecting plate is fixedly provided on the lower surface of the movable plate, a drive assembly is provided on the connecting plate, and an auxiliary cooling assembly is installed on the end of the placement plate away from the movable plate.

[0007] 12. The heat dissipation device as described in claim 9, wherein the bridge has an outlet connected to the cooling fan, and the outlet has a check valve in the outlet port. The bridge has an outlet port on its side and an outlet port on the side of the cooling fan. The bridge has a outlet port on its side and an outlet port on the side of the cooling fan.

[0008] Preferably, one end of the two screw top tube brackets is connected through a first belt drive, a first motor is fixedly installed on the top of the bracket, and the output end of the first motor is coaxially fixed on one of the screws.

[0009] Preferably, the driving assembly includes a connecting shaft, the connecting shaft is inserted through the movable plate, one end of the placing plate is fixedly arranged on the connecting shaft, the connecting plate is provided with a transmission shaft arranged parallel to the connecting shaft, the two ends of the transmission shaft are connected to the connecting shaft by a second belt transmission, the middle end of the transmission shaft is fixedly provided with a driving gear, the bottom of the driving gear is meshed with a toothed plate, the bottom of the toothed plate is fixedly provided with a driving plate arranged in a cross distribution with the toothed plate itself, the middle end of the driving plate is penetrated by a movable groove, one end of the movable groove is fixedly provided with a pushing block, the bottom of the pushing block is fixedly provided with a rotating plate, and the end of the rotating plate away from the pushing block is fixedly provided with a vertically arranged rotating shaft. The bottom of the rotating shaft is rotatably inserted into the connecting plate; a plurality of groups of vertical plates equally spaced and vertically arranged are fixedly provided at one end of the connecting plate away from the bracket, and each group of the vertical plates is symmetrically arranged with two, and a rotating rod is provided between two adjacent vertical plates for common rotation, and the rotating rod is located between the two vertical plates and is fixed with fan blades, and the rotating rods on the multiple groups of vertical plates are connected by a third belt transmission, and a transmission assembly is provided between the rotating rod and the rotating shaft; support rods are movably inserted at both ends of the connecting plate near the driving plate, and both ends of the support rods are fixedly provided on the connecting plate; a second motor is fixedly provided at the bottom of the connecting plate near the rotating shaft, and the output end of the second motor is coaxially fixed on the rotating shaft.

[0010] Preferably, the transmission assembly includes a transmission shaft, which is rotatably arranged on the connecting plate in a vertical state and close to the rotating shaft. The transmission shaft is connected to the rotating shaft through two meshing gears, and the top of the transmission shaft is connected to one of the rotating rods through two meshing bevel gears; a large gear is fixed on the rotating shaft, and a small gear meshing with the large gear is fixed on the transmission shaft.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. In the present invention, the first motor drives the screw rod to move the fan up and down, blowing air to the upper and lower ends of the surface of the dry-type transformer body to dissipate heat, thereby compensating for the problem of poor natural heat dissipation effect and achieving effective vertical heat dissipation;

[0013] 2. The second motor in the present invention drives a series of structures such as the rotating plate and the push block, so that the fan on the placement plate can move up and down and swing repeatedly, thereby increasing the range of blowing and cooling the surface of the dry-type transformer, and can more comprehensively and efficiently handle the heat accumulated on the surface, thereby improving the heat dissipation efficiency;

[0014] 3. In the present invention, the first air pump draws in external air, which is then cooled by the heat dissipation fins and the cooling water in the cooling box. The air is then blown to the surface of the dry-type transformer through the air pipe under the action of the fan, quickly neutralizing its surface temperature. The subsequent fan can also blow away the hot air. Compared with natural air cooling, the heat dissipation effect is greatly improved, making the dry-type transformer work more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 Schematic diagram of the support structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the side structure of the bracket of the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the placement plate of the present invention.

[0020] Figure 5 It is a bottom view of the structure of the placement board of the present invention.

[0021] Figure 6This is a schematic diagram of the connecting plate structure of the present invention.

[0022] Figure 7 It is a schematic diagram of the transmission shaft structure of the present invention.

[0023] Figure 8 It is a schematic diagram of the structure of the large gear and small gear of the present invention.

[0024] Figure 9 This is a schematic diagram of the internal structure of the cooling box of the present invention.

[0025] In the figure: 1. square steel; 11. dry-type transformer body; 12. bracket; 13. screw; 14. movable plate; 15. placement plate; 16. fan; 17. first belt; 18. first motor; 2. cooling box; 21. heat dissipation fin; 22. first conveying pipe; 23. first air pump; 24. second conveying pipe; 25. second air pump; 26. air plate; 27. air pipe; 3. connecting plate; 31. connecting shaft; 32. second belt; 33. transmission shaft; 34. driving gear; 35. tooth plate; 36. driving plate; 37. movable groove; 38. push block; 39. rotating plate; 4. rotating shaft; 41. second motor; 42. support rod; 5. transmission shaft; 51. small gear; 52. large gear; 53. bevel gear; 6. vertical plate; 61. rotating rod; 62. fan blade; 63. third belt. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figure 1-9 As shown, the present invention provides a dry-type transformer in a wind turbine cabin, comprising a square steel 1, a dry-type transformer body 11 being fixedly mounted on the top of the square steel 1, an L-shaped bracket 12 being fixedly mounted on the side wall of the square steel 1, the bracket 12 being in a horizontal position and rotatably provided with two vertical driving screws 13 at one end away from the square steel 1, the top of the driving screw 13 being rotatably provided on the top of the bracket 12, a horizontally arranged movable plate 14 being commonly threadedly inserted between the two driving screws 13, a placing plate 15 being rotatably provided at one end of the movable plate 14 away from the screw 13, a plurality of equally spaced fans 16 being fixedly mounted on the placing plate 15 and the fans 16 being inclined, an L-shaped connecting plate 3 being fixedly mounted on the lower surface of the movable plate 14, a driving assembly being provided on the connecting plate 3, and an auxiliary cooling assembly being installed at one end of the placing plate 15 away from the movable plate 14.

[0028] The auxiliary cooling assembly includes a cooling box 2, wherein cooling water is stored in the cooling box 2, a heat dissipation fin 21 is fixedly installed at the bottom of the cooling box 2, and the heat dissipation fin 21 is fixedly installed on the lower surface of the placement plate 15, a first delivery pipe 22 is installed on the heat dissipation fin 21, a first air pump 23 is installed at one end of the first delivery pipe 22, the first delivery pipe 22 is away from the output end of the first air pump 23 and is inserted into the cooling box 2, a second delivery pipe 24 is connected to the cooling box 2, and the second delivery pipe 24 An end away from the first delivery pipe 22 is connected with an outlet pipe 27 having the same setting as the fan 16, and the outlet pipe 27 passes through the cooling box 2. An air plate 26 is fixedly installed on the end of the placement plate 15 away from the screw rod 13, and three air pipes 27 with equal intervals are installed on the air plate 26. The air pipes 27 are provided with air holes with equal intervals. One end of the second delivery pipe 24 passes through the cooling box 2 and is fixedly connected to the air plate 26. An end of the second delivery pipe 24 close to the placement plate 15 is fixedly installed with a second air pump 25.

[0029] By adopting the above technical solution, the first air pump 23 will work to suck external gas into the first delivery pipe 22. At this time, the air passing through the first delivery pipe 22 will also be cooled by the heat absorption of the heat dissipation fins 21, so that the temperature is steadily reduced. Then, the reduced temperature will enter the second delivery pipe 24. Since the second delivery pipe 24 is arranged in the cooling box 2 and the cooling box 2 is filled with cooling water, the temperature of the air input into the second delivery pipe 24 will be reduced again. At this time, the cooled gas will pass through the second air pump 25 and the air plate 26 and will be ejected from the air pipe 27. Since the air pipe 27 is arranged near the fan 16, the fan 16 will make the cooled gas flow in and out near the surface of the dry-type transformer. The cooled gas will quickly neutralize the temperature of the surface of the dry-type transformer, thereby cooling it down.

[0030] The first delivery pipe 22 and the second delivery pipe 24 are both arranged in an S-shape.

[0031] By adopting the above technical solution, the first delivery pipe 22 and the second delivery pipe 24 can increase the duration of gas flow, thereby better improving the duration of gas cooling and heat dissipation.

[0032] One end of the top tube bracket 12 of the two screw rods 13 is connected through a first belt 17. A first motor 18 is fixedly installed on the top of the bracket 12, and the output end of the first motor 18 is coaxially fixed on one of the screw rods 13.

[0033] By adopting the above technical solution, the first motor 18 cooperates with the first belt 17 to provide power to the two screw rods 13 at the same time, thereby improving the convenience of operation.

[0034] The drive assembly includes a connecting shaft 31, which is inserted through the movable plate 14, and one end of the placing plate 15 is fixedly provided on the connecting shaft 31. The connecting plate 3 is provided with a transmission shaft 33 arranged parallel to the connecting shaft 31. The two ends of the transmission shaft 33 are connected to the connecting shaft 31 through a second belt 32. The middle end of the transmission shaft 33 is fixedly provided with a driving gear 34, and the bottom of the driving gear 34 is meshed with a tooth plate 35. The bottom of the tooth plate 35 is fixedly provided with a driving plate 36 arranged in a cross distribution with the tooth plate 35 itself. The middle end of the driving plate 36 is penetrated by a movable groove 37, one end of the movable groove 37 is fixedly provided with a pushing block 38, and the bottom of the pushing block 38 is fixedly provided with a rotating plate 39. The end of the rotating plate 39 away from the pushing block 38 is fixedly provided with a vertically arranged rotating shaft 4, and the bottom of the rotating shaft 4 is rotatably inserted on the connecting plate 3.

[0035] When the rotating shaft 4 rotates, the rotating plate 39 and the pushing block 38 are driven to rotate. At this time, the rotating plate 39 drives the pushing block 38 to continuously move from one end of the movable groove 37 on the driving plate 36 to the other end, so that the pushing block 38 continuously moves back and forth in the movable groove 37. At this time, the driven driving plate 36 will continuously move back and forth along the support rod 42, so that the repeatedly moving driving plate 36 will drive the toothed plate 35 fixed on the top to drive the driving gear 34 to continuously move back and forth. At this time, the driving gear 34 will drive the transmission shaft 33 to drive the connecting shaft 31 to rotate continuously back and forth through the second belts 32 at both ends. At this time, the rotating connecting shaft 31 will drive the placing plate 15 to swing. At this time, the placing plate 15 will take the connecting shaft 31 as the center of the circle and swing back and forth repeatedly with the connecting shaft 31. Therefore, when the screw rod 13 in the above step rotates, the fan 16 located on the placing plate 15 will repeatedly swing while moving up and down repeatedly.

[0036] A plurality of groups of vertical plates 6 are fixedly provided at one end of the connecting plate 3 away from the bracket 12, and the number of vertical plates 6 distributed at equal intervals and arranged vertically is two in each group and are symmetrically arranged. A rotating rod 61 is provided between two adjacent vertical plates 6 for common rotation, and the rotating rod 61 is located between the two vertical plates 6 and is fixed with fan blades 62. The rotating rods 61 on the plurality of groups of vertical plates 6 are connected by a third belt 63, and a transmission assembly is provided between the rotating rod 61 and the rotating shaft 4.

[0037] By adopting the above-mentioned technical solution, the multiple third belts 63 can simultaneously drive the multiple rotating rods 61 to rotate, so that the multiple sets of fan blades 62 rotate at the same time. The rotating fan blades 62 will face the heat dissipating fins 21, blow out the heat accumulated on the heat dissipating fins 21, and reduce the temperature of the heat dissipating fins 21, so that the first conveying pipe 22 can still effectively cool the inhaled gas.

[0038] Support rods 42 are movably inserted at both ends of the connecting plate 3 close to the driving plate 36 , and both ends of the support rods 42 are fixedly arranged on the connecting plate 3 .

[0039] By adopting the above technical solution, the provided support rod 42 can guide and support the driving plate 36 .

[0040] A second motor 41 is fixedly mounted on the bottom of the connecting plate 3 near the rotating shaft 4 , and an output end of the second motor 41 is coaxially fixedly mounted on the rotating shaft 4 .

[0041] By adopting the above technical solution, the second motor 41 can provide sufficient power for the rotation of the rotating shaft 4, making it convenient for the staff to operate.

[0042] The transmission assembly includes a transmission shaft 5, which is vertically rotatably arranged on the connecting plate 3 and close to the rotating shaft 4. The transmission shaft 5 is connected to the rotating shaft 4 through two meshing gears, and the top of the transmission shaft 5 is connected to one of the rotating rods 61 through two meshing bevel gears 53.

[0043] By adopting the above technical solution, the rotating rod 61 on the fan blade 62 and the rotating shaft 4 can be rotated in conjunction with each other through the transmission shaft 5, thereby increasing the linkage performance of the device.

[0044] A large gear 52 is fixedly provided on the rotating shaft 4 , and a small gear 51 meshing with the large gear 52 is fixedly provided on the transmission shaft 5 .

[0045] By adopting the above technical solution, when the large gear 52 drives the small gear 51 to rotate, the small gear 51 can rotate faster, so that the transmission shaft 5 fixed on the small gear 51 drives the rotating rod 61 and the fan blade 62 to rotate faster, and the fan blade 62 rotates faster, so that the heat dissipation fins 21 and the gas in the first delivery pipe 22 are quickly cooled.

[0046] When in use, the first motor 18 and the second motor 41 are started, and the first motor 18 cooperates with the first belt 17 to drive the two screw rods 13 to rotate at the same time. The rotating screw rod 13 will drive the movable plate 14 threadedly connected to itself to move up and down along the screw rod 13. At this time, the fan 16 provided on the movable plate 14 and the placement plate 15 will move upward, thereby blowing and cooling the surface of the dry-type transformer body 11. When the first motor 18 is started forward and reverse, the fan 16 will be driven by the screw rod 13 to move up and down repeatedly, and the upper and lower ends of the surface of the dry-type transformer body 11 will be effectively cooled by blowing air;

[0047] During the starting process of the above-mentioned screw rod 13, the second motor 41 works to drive the rotating shaft 4 to rotate. At this time, the rotating rotating shaft 4 will drive the rotating plate 39 fixed at the top to rotate, and the rotating rotating plate 39 will drive the pushing block 38 fixed at the end to move. Subsequently, when the pushing block 38 rotates with the rotating plate 39, the pushing block 38 will push the driving plate 36 to move along the support rod 42. As the rotating shaft 4 drives the rotating plate 39 to rotate continuously, the rotating plate 39 will drive the pushing block 38 to continuously move from one end of the movable groove 37 on the driving plate 36 to the other end, so that the pushing block 38 moves back and forth repeatedly in the movable groove 37. At this time, the driven driving plate 36 will continuously move back and forth along the support rod 42, thereby repeatedly moving the driving plate 36. 6. The toothed plate 35 fixed at the top is driven to drive the driving gear 34 to move back and forth repeatedly. At this time, the driving gear 34 drives the transmission shaft 33 to drive the connecting shaft 31 to rotate back and forth continuously through the second belts 32 at both ends. At this time, the rotating connecting shaft 31 will drive the placement plate 15 to swing. At this time, the placement plate 15 will take the connecting shaft 31 as the center and swing back and forth repeatedly with the connecting shaft 31. Therefore, when the screw rod 13 rotates in the above steps, the fan 16 on the placement plate 15 will repeatedly move up and down while swinging repeatedly. At this time, during the movement, the range of blowing heat to the surface of the dry-type transformer is increased, and the heat accumulated on the surface is efficiently and comprehensively treated.

[0048] When the fan 16 moves along with the rotation of the screw 13, the first air pump 23 will work to suck the external air into the first delivery pipe 22. At this time, the air will also be cooled by the heat absorption of the heat dissipation fins 21 through the first delivery pipe 22, so that the temperature is steadily reduced. Then, the reduced temperature will enter the second delivery pipe 24. Since the second delivery pipe 24 is arranged in the cooling box 2 and the cooling box 2 is filled with cooling water, the temperature of the air input into the second delivery pipe 24 will be reduced again. At this time, the cooled gas will pass through the second air pump 25 and the air plate 26 and will be ejected from the air pipe 27. Since the air pipe 27 is arranged near the fan 16, the fan 16 will make the cooled gas flow in and out near the surface of the dry-type transformer. The cooled gas will quickly neutralize the temperature of the surface of the dry-type transformer and cool it down. At the same time, the fan 16 will blow off the hot air attached to its surface. Therefore, when the dry-type transformer is arranged in the cabin, the traditional natural gas outside the dry-type transformer is changed to a gas cooled by the fan 16, the air pipe 27, etc. The device composed of the components performs efficient heat dissipation treatment and has better heat dissipation effect, so that the heat dissipation effect of the surface of the dry-type transformer is improved during operation, making its operation more stable. When the above-mentioned heat dissipation fins 21 dissipate heat for the air inside the first conveying pipe 22, the multiple third belts 63 provided can simultaneously drive the multiple rotating rods 61 to rotate, so that the multiple sets of fan blades 62 rotate at the same time. The rotating fan blades 62 will face the heat dissipation fins 21 and blow out the heat accumulated on the heat dissipation fins 21, thereby reducing the temperature of the heat dissipation fins 21, so that the first conveying pipe 22 can still effectively cool the inhaled gas. At the same time, the rotating rod 61 and the rotating shaft 4 on the fan blade 62 can be linked to rotate through the transmission shaft 5, thereby increasing the linkage of the device, and cooperating with the large gear 52 to drive the pinion 51 to rotate, so that the pinion 51 rotates faster, thereby making the transmission shaft 5 fixed on the pinion 51 drive the rotating rod 61 and the fan blade 62 to rotate faster, so that the fan blade 62 rotates faster, and the heat dissipation fins 21 and the gas in the first conveying pipe 22 are quickly cooled.

[0049] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A dry-type transformer for a wind turbine generator cabin, comprising square steel (1), characterized in that: The top of the square steel (1) is fixedly provided with a dry-type transformer body (11), and the side wall of the square steel (1) is fixedly provided with an L-shaped bracket (12), and the bracket (12) is rotatably provided with two vertical driving screws (13) at one end away from the square steel (1) in a horizontal position, and the driving screws (13) are rotatably provided at the top of the bracket (12), and a horizontally provided movable plate (14) is commonly threadedly inserted between the two driving screws (13), and the movable plate (14) is rotatably provided with a placement plate (15) at one end away from the screws (13), and a plurality of fans (16) distributed at equal intervals are fixedly provided on the placement plate (15) and are tilted relative to the fans (16), and an L-shaped connecting plate (3) is fixedly provided on the lower surface of the movable plate (14), and a driving assembly is provided on the connecting plate (3), and an auxiliary cooling assembly is installed at one end of the placement plate (15) away from the movable plate (14); The driving assembly includes a connecting shaft (31), the connecting shaft (31) is inserted horizontally through the movable plate (14), one end of the placing plate (15) is fixedly arranged on the connecting shaft (31), the connecting plate (3) is provided with a transmission shaft (33) arranged parallel to the connecting shaft (31), the two ends of the transmission shaft (33) are connected to the connecting shaft (31) through a second belt (32), the middle end of the transmission shaft (33) is fixedly provided with a driving gear (34), the bottom of the driving gear (34) is engaged with the A tooth plate (35) is provided, and a driving plate (36) is fixedly provided at the bottom of the tooth plate (35) and is arranged in a cross-distribution with the tooth plate (35) itself. A movable groove (37) is provided through the middle end of the driving plate (36), and a push block (38) is fixedly provided at one end of the movable groove (37). A rotating plate (39) is fixedly provided at the bottom of the push block (38), and a vertically arranged rotating shaft (4) is fixedly provided at one end of the rotating plate (39) away from the push block (38). The bottom of the rotating shaft (4) is rotatably inserted on the connecting plate (3).

2. The dry-type transformer for a wind turbine generator cabin according to claim 1, characterized in that: The auxiliary cooling assembly includes a cooling box (2), wherein cooling water is stored in the cooling box (2), a heat dissipation fin (21) is fixedly installed at the bottom of the cooling box (2), and the heat dissipation fin (21) is fixedly installed on the lower surface of the placement plate (15), a first delivery pipe (22) is installed on the heat dissipation fin (21), a first air pump (23) is installed at one end of the first delivery pipe (22), the output end of the first delivery pipe (22) away from the first air pump (23) is inserted into the cooling box (2), and a second delivery pipe (24) is connected to the cooling box (2), and the second delivery pipe (24) is far away from the output end of the first air pump (23). An outlet pipe (27) having the same configuration as the fan (16) is connected to one end of the first delivery pipe (22), and the outlet pipe (27) passes through the cooling box (2). An air plate (26) is fixedly installed on one end of the placement plate (15) away from the screw rod (13), and three air pipes (27) are installed on the air plate (26) at equal intervals. The air pipes (27) are provided with air holes at equal intervals. One end of the second delivery pipe (24) passes through the cooling box (2) and is fixedly connected to the inside of the air plate (26). An end of the second delivery pipe (24) close to the placement plate (15) is fixedly installed with a second air pump (25).

3. The dry-type transformer for a wind turbine generator cabin according to claim 2, characterized in that: The first delivery pipe (22) and the second delivery pipe (24) are both arranged and distributed in an S-shape.

4. The dry-type transformer for a wind turbine generator cabin according to claim 1, characterized in that: One end of the top tube bracket (12) of the two screw rods (13) is connected by a first belt (17) for transmission, and a first motor (18) is fixedly installed on the top of the bracket (12), and the output end of the first motor (18) is coaxially fixedly arranged on one of the screw rods (13).

5. The dry-type transformer for a wind turbine generator cabin according to claim 1, characterized in that: A plurality of groups of vertical plates (6) are fixedly provided at one end of the connecting plate (3) away from the bracket (12), the number of vertical plates (6) arranged in each group being two and symmetrically arranged, a rotating rod (61) is provided between two adjacent vertical plates (6) for common rotation, the rotating rod (61) is located between the two vertical plates (6) and is fixed with a fan blade (62), the rotating rods (61) on the plurality of groups of vertical plates (6) are connected by a third belt (63), and a transmission assembly is provided between the rotating rod (61) and the rotating shaft (4).

6. The dry-type transformer for a wind turbine generator cabin according to claim 1, characterized in that: Two parallel supporting rods (42) are fixedly connected to the connecting plate (3), and two ends of the driving plate (36) slide on the two supporting rods (42) respectively.

7. The dry-type transformer for a wind turbine generator cabin according to claim 1, characterized in that: A second motor (41) is fixedly provided at the bottom of the connecting plate (3) near the rotating shaft (4), and an output end of the second motor (41) is coaxially fixedly provided on the rotating shaft (4).

8. The dry-type transformer for a wind turbine generator cabin according to claim 5, characterized in that: The transmission assembly further comprises a transmission shaft (5), wherein the transmission shaft (5) is rotatably arranged on the connecting plate (3) in a vertical state and close to the rotating shaft (4), the transmission shaft (5) is connected to the rotating shaft (4) via two meshing gears, and the top of the transmission shaft (5) is connected to one of the rotating rods (61) via two meshing bevel gears (53).

9. The dry-type transformer for a wind turbine generator cabin according to claim 8, characterized in that: A large gear (52) is fixedly provided on the rotating shaft (4), and a small gear (51) meshing with the large gear (52) is fixedly provided on the transmission shaft (5).

Images