Wind power box transformer with air cooling heat dissipation function

Abstract

The invention discloses an air-cooled wind power box transformer, which relates to the technical field of electrical equipment and comprises a transformer mechanism, and a shell mechanism is mounted at the top of the transformer mechanism. In the air cooling heat dissipation process, air inlet and air exhaust are independently operated, the positions of the four filter plates inside can be adjusted after driving force is provided for the self-cleaning mechanism used for filtering inside through the driving mechanism, and then the filter plates attached with external air impurities can rotate to the position below the exhaust fan; the filter plate adhered with internal air impurities can rotate to the position of an air supply port, and under the action of a special airflow path, the impurities can be directly and reversely blown to the outside under the action of exhaust airflow after the filter plate adhered with a large amount of external air impurities rotates, so that the cleaning interval of the filter plate is greatly increased, and the cleaning efficiency is improved. And the defect that the transformer of the wind power box is externally arranged is overcome, so that a great advantage is formed in the economic aspect.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment, and in particular to an air-cooled wind turbine box transformer. Background Art

[0002] As the global demand for clean energy continues to grow, wind power generation has developed rapidly as a renewable and pollution-free form of energy. In wind power generation systems, box transformers play a vital role. They boost the electricity generated by wind turbines and transmit it to the power grid.

[0003] In the prior art, such as the Chinese patent number: CN111613988A, a wind power box transformer with air cooling is disclosed, including a box body, a fixing plate, a fixing rod, a transformer, a high-voltage cabinet, a low-voltage cabinet and an air cooling component; the box body includes a bottom plate, a top plate, a first side plate and a second side plate; the first side plate and the second side plate are both connected between the bottom plate and the top plate; the first side plate and the second side plate isolate the box body into a transformer chamber, a high-voltage chamber and a low-voltage chamber; the high-voltage cabinet is arranged in the high-voltage chamber; the low-voltage cabinet is arranged in the low-voltage chamber; the transformer is arranged in the transformer chamber; compared with the traditional method of using an exhaust fan for air cooling and heat dissipation, the wind power box transformer with air cooling and heat dissipation proposed in the present invention increases the relevant structure of atomization evaporation cooling, so that the temperature of the air sucked into the transformer box is lower, thereby having a better heat dissipation and cooling effect.

[0004] Although the above patent uses the relevant structure of atomization evaporation cooling to make the temperature of the air sucked into the transformer box lower and has better heat dissipation and cooling effect, in actual use, wind power box transformers are mainly divided into those installed inside and outside the wind power tower. Although the built-in method can occupy less land, the infrastructure cost is lower than the external method, and the operating environment is cleaner than the external method, the internal space of the tower greatly limits the size and performance of the transformer, and the transformer body and high and low voltage switch cabinets must be arranged and placed in layers. Not only is the installation cost difficult, but the difficulty of subsequent maintenance increases exponentially compared to the external method. The external method is not limited by space. The transformer body and high and low voltage switch cabinets can be arranged in one shell, the structure is simpler and the appearance is not restricted, which can be effectively controlled. The performance of the transformer is greatly improved under the premise of reducing the production cost, and it is convenient to manufacture, transport, hoist, install on site and maintain in the future. The cooling method adopts AN / AF, which is simple, efficient and low-cost. Although the external wind turbine box transformer in wind power generation can effectively control various costs and is more convenient to use, the location of the wind power generation is very remote and far away from each other. When the natural cooling / forced air cooling method of the external wind turbine box transformer is used in an outdoor environment with poor environment, the cleaning cycle of the filter plate in the box will be shorter. In the case of remote location and the long distance between the box transformers and a large area, manual cleaning and replacement of the filter plate will consume a lot of time and labor costs, which increases the overall cost of the external wind turbine box transformer. In terms of economy, it is difficult to form a greater advantage.

[0005] Therefore, we propose a wind turbine box transformer with air cooling and heat dissipation to solve the problems raised in the above background technology. Summary of the invention

[0006] The purpose of the present invention is to provide a wind turbine box transformer with air cooling and heat dissipation to solve the problem that the external wind turbine box transformer with many advantages proposed in the above background technology consumes a lot of time and labor costs due to the filter plate problem, and it is difficult to form a greater advantage in economic terms.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wind power box transformer with air cooling and heat dissipation, comprising a transformer mechanism, a shell mechanism is installed on the top of the transformer mechanism, a shunt component is arranged near the center position inside the shell mechanism, a self-cleaning mechanism is arranged on the outside of the shunt component, a driving mechanism is arranged on the top of the shell mechanism, a dust cleaning mechanism is arranged near the front side inside the shell mechanism, the shunt component comprises a circular shell, a first air inlet and a second air inlet are respectively provided on the outer surface of the circular shell near the left side, a first air exhaust port and a second air exhaust port are respectively provided on the outer surface of the circular shell near the outside, the self-cleaning mechanism comprises an annular shell, two air supply channels are provided on the inner surface of the annular shell near the left side, two ventilation channels are provided on the inner surface of the annular shell near the right side, and filter plates are connected to the outer surface of the annular shell at the outside of the air supply channel and the ventilation channel.

[0008] Preferably, the transformer mechanism includes a sealed shell, a transformer body is installed on the inner bottom of the sealed shell, a ventilation shell is installed on the inner surface wall of one side of the sealed shell, and an air supply shell is installed on the inner surface wall of the other side of the sealed shell, and multiple exhaust grooves are provided on the outer surfaces of the opposite sides of the ventilation shell and the air supply shell, and the outer surfaces of the opposite sides of the ventilation shell and the air supply shell are respectively fixedly connected with a ventilation pipe and an air supply pipe near the top.

[0009] Preferably, the shell mechanism includes a bottom shell, which is fixedly connected to the top of the sealed shell, and a ventilation port and an air supply port are respectively provided at the bottom of the bottom shell near the two front corners, the top of the ventilation pipe and the bottom of the bottom shell are fixedly connected at a position outside the ventilation port, and the top of the air supply pipe and the bottom of the bottom shell are fixedly connected at a position outside the air supply port.

[0010] Preferably, a top cover is fixedly installed on the top of the bottom shell, and partition blocks are fixedly connected to the inner walls around the bottom shell near the center. The annular shell is rotatably connected to the inner bottom of the bottom shell and has four expansion blocks fixedly connected to the outer surface at equal distances. The outer surface of the expansion block and the outer surface of the partition block are slidably fitted, and an opening is provided on the front surface of the bottom shell.

[0011] Preferably, the top of the top cover is fixedly connected to a motor frame, an air supply fan is installed at a position of the top of the top cover near one of the rear corners, and an exhaust fan is installed at a position of the top of the top cover near another rear corner.

[0012] Preferably, the circular shell is fixedly connected to the center of the inner bottom of the bottom shell, and the outer surface of the circular shell and the inner surface wall of the inner ring groove are slidably fitted, the first air inlet and the second air inlet are connected, the first air exhaust port and the second air exhaust port are connected, the first air inlet and the second air inlet are respectively connected to two air supply channels, and the first air exhaust port and the second air exhaust port are respectively connected to two ventilation channels.

[0013] Preferably, the driving mechanism includes a stepper motor, which is fixedly mounted on the top of the motor frame and the output end rotates through the top of the motor frame and the top cover and extends to the bottom of the top cover, the output end of the stepper motor is fixedly connected to a driving gear, and the top of the annular shell is fixedly connected to an internal gear near the edge, the driving gear and the internal gear are meshed and the number of teeth on the internal gear is greater than the number of teeth on the driving gear.

[0014] Preferably, the cleaning mechanism includes a first roller, a second roller and a U-shaped shell, the first roller and the second roller are both rotatably connected to the inner bottom of the bottom shell near the front side, the second roller is located outside the opening, and a second transmission belt is transmission-connected between the outer surfaces of the first roller and the second roller, and a plurality of groups of nylon brushes are arranged on the outer surface of the second transmission belt.

[0015] Preferably, the U-shaped shell is fixedly connected to the front surface of the bottom shell at a position outside the opening, and a brush plate is fixedly connected to the inner wall of one side of the U-shaped shell, and the brush plate cooperates with the nylon brush, and a large pulley is fixedly connected to the outer surface of the output end of the stepper motor at a position above the top cover, and the outer surface of the large pulley is sleeved with a first transmission belt, and a small pulley is provided on the inner wall of the first transmission belt near the front side, and a connecting shaft is fixedly connected to the bottom center of the small pulley, and the bottom end of the connecting shaft rotates through the top of the top cover and is fixedly connected to the top of the second roller.

[0016] Preferably, a ladder is fixedly installed on the outer surface of one side of the sealed shell, and a top frame is fixedly connected to the top of the sealed shell near the four corners, and a ceiling is fixedly connected between the tops of the four top frames. The ceiling is located above the bottom shell and the top of the ceiling is a reduced design.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the present invention is used, the air intake and exhaust operate independently during the air cooling process, and the positions of the four internal filter plates can be adjusted after the driving mechanism provides driving force for the internal self-cleaning mechanism for filtering, so that the filter plate with impurities from the outside air can be rotated to the position below the exhaust fan, and the filter plate with impurities from the internal air can be rotated to the position of the air supply port. Under the action of a special airflow path, the filter plate with a large amount of impurities from the outside air can be rotated and the impurities can be directly blown back to the outside under the action of the exhaust airflow, thereby greatly improving the cleaning interval of the filter plate and solving the problem of external placement of the transformer in the wind turbine box, thus forming a greater advantage in terms of economy.

[0019] 2. When the present invention is used, the overall structural design allows air to enter from the left and exit from the right inside the sealed housing, thereby forming a clear airflow and being able to quickly pass through the transformer body to take away heat and avoid local heat accumulation, effectively improving the air-cooling and heat dissipation effect. When external gas enters, the impurities therein will be effectively blocked by the filter plate, preventing dust from entering the sealed housing and adhering to the surface of the transformer body, causing heat to be difficult to discharge and causing malfunctions, thereby ensuring the stability of the transformer body during operation and achieving a good overall use effect.

[0020] 3. When the present invention is used, during the rotation of the filter plate with internal air impurities adhered thereto, the large pulley rotating with the stepper motor driving end will synchronously drive the small pulley to rotate at high speed through the first transmission belt, and the small pulley will drive the first roller to rotate rapidly through the connecting shaft. At this time, the rapidly rotating first roller cooperates with the second roller to drive the second transmission belt to operate rapidly. During the operation, the surface nylon brush will clean the internal air impurities adhered to the filter plate, and during the rotation of the second transmission belt, the nylon brush and the brush plate will be staggered up and down, and the impurities adhered to the surface will be scraped off by the brush plate and retained in the area of ​​the U-shaped shell, thereby ensuring that the air quality inside the sealed shell is not affected after the position of the filter plate with internal air impurities is changed, ensuring that the transformer body can effectively exert its performance, and having good practicality. In addition, the special design of the box transformer makes the internal air impurity content low, and it is only necessary to dismantle the U-shaped shell twice a year to remove the internal air impurities, and having high practicality.

[0021] 4. When the present invention is in use, a top frame is designed on the top of the sealed shell to support the ceiling, which plays a role in keeping out rain, effectively preventing the air supply fan and the exhaust fan from being damaged by rainy weather and increasing their service life. In addition, a ladder is designed on the outside of the sealed shell to facilitate maintenance personnel to climb onto the top of the sealed shell to inspect and maintain the air supply fan, exhaust fan and stepper motor exposed to the outside. The structure is simple and reasonable, which reduces the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of a wind power box transformer with air cooling and heat dissipation according to the present invention;

[0023] Figure 2 A cross-sectional view of a wind power box transformer with air cooling and heat dissipation according to the present invention;

[0024] Figure 3 A schematic diagram of the transformer structure of an air-cooled wind power box transformer of the present invention;

[0025] Figure 4 This is a schematic diagram of the shell structure of an air-cooled wind power box transformer of the present invention;

[0026] Figure 5 It is a partial structural cross-sectional view of a wind power box transformer with air cooling and heat dissipation according to the present invention;

[0027] Figure 6 This is a schematic structural diagram of a shunt component of a wind power box transformer with air cooling and heat dissipation according to the present invention;

[0028] Figure 7 It is a structural schematic diagram of a self-cleaning mechanism of a wind power box transformer with air cooling and heat dissipation according to the present invention;

[0029] Figure 8 It is a schematic diagram of the driving mechanism structure of a wind power box transformer with air cooling and heat dissipation of the present invention;

[0030] Fig. 9 The present invention is a schematic diagram of the structure of a dust cleaning mechanism for an air-cooled wind turbine box transformer.

[0031] In the figure: 1. Transformer mechanism; 101. Sealed housing; 102. Transformer body; 103. Ventilation housing; 104. Air supply housing; 105. Ventilation pipe; 106. Air supply pipe; 107. Ladder; 108. Top frame; 109. Ceiling; 2. Housing mechanism; 201. Bottom housing; 202. Opening; 203. Separation block; 204. Top cover; 205. Motor frame; 206. Air supply fan; 207. Exhaust fan; 208. Ventilation port; 209. Air supply port; 3. Diverter assembly; 301. Round housing; 302. First air inlet; 303. Second air inlet; 304. The first air exhaust port; 305, the second air exhaust port; 4, the self-cleaning mechanism; 401, the annular shell; 402, the expansion block; 403, the inner ring groove; 404, the ventilation channel; 405, the air supply channel; 406, the filter plate; 407, the inner gear; 5, the driving mechanism; 501, the stepping motor; 502, the large pulley; 503, the driving gear; 504, the first transmission belt; 505, the small pulley; 506, the connecting shaft; 6, the cleaning mechanism; 601, the first rotating roller; 602, the second rotating roller; 603, the second transmission belt; 604, the nylon brush; 605, the U-shaped shell; 606, the brush plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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 creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figure 1-Figure 9As shown, the present invention provides a technical solution: a wind power box transformer with air cooling and heat dissipation, comprising a transformer mechanism 1, a shell mechanism 2 is installed on the top of the transformer mechanism 1, a shunt component 3 is arranged near the center of the shell mechanism 2, a self-cleaning mechanism 4 is arranged on the outside of the shunt component 3, a driving mechanism 5 is arranged on the top of the shell mechanism 2, a dust cleaning mechanism 6 is arranged near the front side of the shell mechanism 2, the shunt component 3 comprises a circular shell 301, a first air inlet 302 and a second air inlet 303 are respectively opened on the outer surface of the circular shell 301 near the left side, a first air exhaust port 304 and a second air exhaust port 305 are respectively opened on the outer surface of the circular shell 301 near the outside, the self-cleaning mechanism 4 comprises an annular shell 401, an annular Two air supply channels 405 are provided near the left side of the shell 401, and two ventilation channels 404 are provided near the right side of the annular shell 401. The outer surface of the annular shell 401 is located outside the air supply channel 405 and the ventilation channel 404. Filter plates 406 are connected to each other. The transformer mechanism 1 includes a sealed shell 101, a transformer body 102 is installed on the inner bottom of the sealed shell 101, a ventilation shell 103 is installed on the inner surface wall of one side of the sealed shell 101, and an air supply shell 104 is installed on the inner surface wall of the other side of the sealed shell 101. Multiple exhaust grooves are provided on the outer surfaces of the opposite sides of the ventilation shell 103 and the air supply shell 104, and the positions of the outer surfaces of the opposite sides of the ventilation shell 103 and the air supply shell 104 near the top are fixedly connected with ventilation plates 406. The air pipe 105 and the air supply pipe 106, the shell mechanism 2 includes a bottom shell 201, the bottom shell 201 is fixedly connected to the top of the sealed shell 101, and the bottom of the bottom shell 201 is respectively provided with a ventilation port 208 and an air supply port 209 near the two front corners, the top of the ventilation pipe 105 and the bottom of the bottom shell 201 are fixedly connected at a position outside the ventilation port 208, the top of the air supply pipe 106 and the bottom of the bottom shell 201 are fixedly connected at a position outside the air supply port 209, a top cover 204 is fixedly installed on the top of the bottom shell 201, and the inner surface walls of the bottom shell 201 are fixedly connected with partition blocks 203 near the center, and the annular shell 401 is rotatably connected to the inner bottom of the bottom shell 201 and four expansion blocks 402 are fixedly connected to the outer surface at equal intervals, and the expansion blocks 402 The outer surface of the bottom shell 201 is slidably fitted with the outer surface of the partition block 203, the front surface of the bottom shell 201 is provided with an opening 202, the top of the top cover 204 is fixedly connected to the motor frame 205, the top of the top cover 204 is installed with an air supply fan 206 near one of the rear corners, and the top of the top cover 204 is installed with an exhaust fan 207 near the other rear corner, the circular shell 301 is fixedly connected to the center of the inner bottom of the bottom shell 201, and the outer surface of the circular shell 301 is slidably fitted with the inner surface wall of the inner ring groove 403, the first air inlet 302 and the second air inlet 303 are connected, the first air extraction port 304 and the second air extraction port 305 are connected, the first air inlet 302 and the second air inlet 303 are respectively connected to the two air supply channels 405,The first air extraction port 304 and the second air extraction port 305 are respectively connected to the two ventilation channels 404. The driving mechanism 5 includes a stepper motor 501. The stepper motor 501 is fixedly installed on the top of the motor frame 205 and the output end rotates through the motor frame 205 and the top of the top cover 204 and extends to the bottom of the top cover 204. The output end of the stepper motor 501 is fixedly connected to a driving gear 503. The top of the annular shell 401 is fixedly connected to an internal gear 407 near the edge. The driving gear 503 is meshed with the internal gear 407 and the number of teeth of the internal gear 407 is greater than the number of teeth of the driving gear 503.

[0034] In this embodiment, when the wind turbine box transformer is used in conjunction with a wind turbine, the device can be installed on a high platform outside the tower for use. When the device needs to dissipate heat, the air supply fan 206 and the exhaust fan 207 are started. After the air supply fan 206 is started, the outside normal temperature air is extracted and transported downward. Since the interior of the bottom shell 201 is divided into five areas under the action of the expansion block 402, the partition block 203 and the annular shell 401, which respectively correspond to the air supply fan 206, the exhaust fan 207, the air supply port 209, the air exchange port 208 and the annular shell 401, at this time, the normal temperature air will enter the bottom of the air supply fan 206, and then pass through the filter plate 406 and the air supply channel 405 at the corresponding position in turn, and then enter from the first air inlet 302 of the circular shell 301 and from the first air outlet 302 of the circular shell 301. After being discharged from the second air inlet 303, it passes through the air supply channel 405 and the filter plate 406 at the corresponding position again, and then is discharged into the air supply shell 104 from the air supply port 209 and the air supply pipe 106, and finally the normal temperature air is sent into from the left side of the sealed shell 101 through the exhaust groove on the surface of the air supply shell 104. After the exhaust fan 207 is started, the exhaust groove on the surface of the ventilation shell 103 on the right side of the sealed shell 101 will generate suction and draw in the high-temperature gas generated by the operation of the transformer body 102. The high-temperature gas will enter the corresponding area inside the bottom shell 201 through the ventilation pipe 105 and the ventilation port 208, and then the high-temperature gas will pass through the filter plate 406 and the ventilation channel 404 at the corresponding position, and then enter from the first air extraction port 304 of the circular shell 301 and be discharged from After being discharged from the second air intake port 305, the air enters the corresponding position of the bottom shell 201 through the ventilation channel 404 and the filter plate 406 at the corresponding position, and is then discharged to the outside from the exhaust fan 207. This design allows air to enter from the left and exit from the right inside the sealed housing 101, thereby forming a clear airflow, and can quickly pass through the transformer body 102, thereby taking away heat and avoiding local heat accumulation, effectively improving the air-cooling and heat dissipation effect, and when the external gas enters, the impurities therein will be effectively blocked by the filter plate 406, preventing dust from entering the sealed housing 101 and adhering to the surface of the transformer body 102, causing heat to be difficult to discharge and causing malfunctions, thereby ensuring the stability of the transformer body 102 during operation, and the overall use effect is good, and the transformer inside the sealed housing 101 During the air cooling and heat dissipation process of the device body 102, due to the special air flow path design, impurities in the external air will adhere to the filter plate 406 below the air supply fan 206, and a small amount of impurities in the internal gas will adhere to the filter plate 406 at the corresponding position of the ventilation port 208. The stepper motor 501 is started according to the timing module in the internal controller, and the stepper motor 501 drives the driving gear 503 to rotate. When the driving gear 503 rotates, it cooperates with the internal gear 407 to drive the annular shell 401 to rotate 90°, so that the filter plate 406 with external air impurities adhered will rotate to the position below the exhaust fan 207, and the filter plate 406 with internal air impurities adhered will rotate to the position of the air supply port 209. Under the action of the special air flow path,After the filter plate 406 with a large amount of external air impurities adhered to it rotates, the impurities will be directly blown back to the outside under the action of the exhaust airflow.

[0035] Embodiment 2: Figure 1-Figure 8 As shown, the dust cleaning mechanism 6 includes a first roller 601, a second roller 602 and a U-shaped shell 605. The first roller 601 and the second roller 602 are both rotatably connected to the inner bottom of the bottom shell 201 near the front side, and the second roller 602 is located outside the opening 202. A second transmission belt 603 is transmission-connected between the outer surfaces of the first roller 601 and the second roller 602. A plurality of groups of nylon brushes 604 are arranged on the outer surface of the second transmission belt 603. The U-shaped shell 605 is fixedly connected to the front surface of the bottom shell 201 at a position outside the opening 202. The U-shaped shell 605 is fixedly connected to the front surface of the bottom shell 201 at a position outside the opening 202. 05 is fixedly connected to the inner wall on one side, and the brush plate 606 cooperates with the nylon brush 604. The outer surface of the output end of the stepper motor 501 is fixedly connected to a large pulley 502 at a position above the top cover 204. The outer surface of the large pulley 502 is sleeved with a first transmission belt 504. A small pulley 505 is provided on the inner wall of the first transmission belt 504 near the front side. A connecting shaft 506 is fixedly connected to the bottom center of the small pulley 505. The bottom end of the connecting shaft 506 rotates through the top of the top cover 204 and is fixedly connected to the top of the second roller 602.

[0036] In the present embodiment, when in use, the filter plate 406 with internal air impurities adhered thereto is rotating, and the large pulley 502 rotating along with the driving end of the stepping motor 501 will synchronously drive the small pulley 505 to rotate at high speed through the first transmission belt 504. Moreover, since the diameter of the large pulley 502 is larger than the diameter of the small pulley 505, and the number of teeth of the driving gear 503 is smaller than the number of teeth of the internal gear 407, when the annular shell 401 drives the filter plate 406 to rotate slowly, the small pulley 505 will drive the first roller 601 to rotate rapidly through the connecting shaft 506. At this time, the rapidly rotating first roller 601 cooperates with the second roller 602 to drive the second transmission belt 603 to rotate rapidly. The nylon brush 604 on the middle surface will clean the internal air impurities adhered to the filter plate 406, and during the rotation of the second transmission belt 603, the nylon brush 604 and the brush plate 606 are staggered up and down, and the impurities adhered to the surface will be scraped off by the brush plate 606 and retained in the area of ​​the U-shaped shell 605, thereby ensuring that the filter plate 406 that adheres to the internal air impurities does not affect the air quality inside the sealed housing 101 after the position change, ensuring that the transformer body 102 can effectively perform its performance, with good practicality, and the special design of this box transformer makes the internal air impurity content low, and it only needs to remove the U-shaped shell 605 twice a year to remove the internal air impurities, which is highly practical.

[0037] Embodiment 3: Figure 1-Figure 4 and Figure 6As shown, a ladder 107 is fixedly installed on the outer surface of one side of the sealed shell 101, and a top frame 108 is fixedly connected to the top of the sealed shell 101 near the four corners, and a ceiling 109 is fixedly connected between the tops of the four top frames 108. The ceiling 109 is located above the bottom shell 201 and the top of the ceiling 109 is a reduced design.

[0038] In this embodiment, when in use, a top frame 108 is designed on the top of the sealed shell 101 to support the ceiling 109, which plays a role in keeping out rain, and can effectively prevent the air supply fan 206 and the exhaust fan 207 from being damaged by rainy weather, thereby increasing their service life. In addition, a ladder 107 is designed outside the sealed shell 101 to facilitate maintenance personnel to climb to the top of the sealed shell 101 to inspect and maintain the air supply fan 206, the exhaust fan 207 and the stepper motor 501 exposed to the outside. The structure is simple and reasonable, which reduces the difficulty of maintenance.

[0039] The effect and working principle achieved by the entire mechanism are as follows: when the wind power box transformer is used in conjunction with a wind turbine, the device can be installed on the outside of the tower on a building platform for use. When the device needs to dissipate heat, the air supply fan 206 and the exhaust fan 207 are started. After the air supply fan 206 is started, the outside normal temperature air is extracted and transported downward. Because the interior of the bottom shell 201 is divided into five areas under the action of the expansion block 402, the partition block 203 and the annular shell 401, which respectively correspond to the air supply fan 206, the exhaust fan 207, the air supply port 209, the air exchange port 208 and the annular shell 401, at this time, the normal temperature air will enter the bottom of the air supply fan 206, and then pass through the filter plate 406 and the air supply channel 405 at the corresponding position in turn, and then from the first After entering through the air inlet 302 and being discharged from the second air inlet 303, it passes through the air supply channel 405 and the filter plate 406 at the corresponding position again, and is discharged into the air supply shell 104 from the air supply port 209 and the air supply pipe 106. Finally, the room temperature air is sent into the left side of the sealed shell 101 through the exhaust groove on the surface of the air supply shell 104. After the exhaust fan 207 is started, the exhaust groove on the surface of the ventilation shell 103 on the right side of the sealed shell 101 will generate suction and draw in the high-temperature gas generated by the operation of the transformer body 102. The high-temperature gas will enter the corresponding area inside the bottom shell 201 through the ventilation pipe 105 and the ventilation port 208, and then the high-temperature gas will pass through the filter plate 406 and the ventilation channel 404 at the corresponding position and then be discharged from the circular shell 301. After entering through the first air inlet 304 and being discharged from the second air inlet 305, the air enters the corresponding position of the bottom shell 201 through the ventilation channel 404 and the filter plate 406 at the corresponding position, and is then discharged to the outside from the exhaust fan 207. This design allows air to enter from the left and exit from the right inside the sealed housing 101, thereby forming a clear airflow, and can quickly pass through the transformer body 102, thereby taking away heat and avoiding local heat accumulation, effectively improving the air-cooling heat dissipation effect, and when external air enters, the impurities therein will be effectively blocked by the filter plate 406, preventing dust from entering the sealed housing 101 and adhering to the surface of the transformer body 102, causing heat to be difficult to discharge and causing malfunctions, thereby ensuring the stability of the transformer body 102 during operation, and the overall use effect is good. During the air cooling and heat dissipation process of the transformer body 102 inside the sealed housing 101, due to the special air flow path design, impurities in the outside air will adhere to the filter plate 406 below the air supply fan 206, and a small amount of impurities in the internal gas will adhere to the filter plate 406 at the corresponding position of the ventilation port 208. The stepper motor 501 is started according to the timing module in the internal controller, and the stepper motor 501 drives the driving gear 503 to rotate. When the driving gear 503 rotates, it cooperates with the internal gear 407 to drive the annular shell 401 to rotate 90°, so that the filter plate 406 with impurities from the outside air will rotate to the position below the exhaust fan 207, and the filter plate 406 with impurities from the internal air will rotate to the position of the air supply port 209.Under the special airflow path, the filter plate 406 with a large amount of external air impurities adhered thereto rotates, and under the action of the exhaust airflow, the impurities are directly blown back to the outside.

[0040] When the filter plate 406 with internal air impurities adhered to it rotates, the large pulley 502 rotating with the driving end of the stepper motor 501 will synchronously drive the small pulley 505 to rotate at high speed through the first transmission belt 504. Since the diameter of the large pulley 502 is larger than the diameter of the small pulley 505, and the number of teeth of the driving gear 503 is smaller than the number of teeth of the internal gear 407, when the annular shell 401 drives the filter plate 406 to rotate slowly, the small pulley 505 will drive the first roller 601 to rotate rapidly through the connecting shaft 506. At this time, the rapidly rotating first roller 601 cooperates with the second roller 602 to drive the second transmission belt 603 to rotate rapidly. During the operation, the nylon surface The brush 604 will clean the internal air impurities adhered to the filter plate 406, and during the rotation of the second transmission belt 603, the nylon brush 604 and the brush plate 606 are staggered up and down, and the impurities adhered to the surface will be scraped off by the brush plate 606 and retained in the area of ​​the U-shaped shell 605, thereby ensuring that the filter plate 406 adhered to the internal air impurities will not affect the air quality inside the sealed housing 101 after the position change, ensuring that the transformer body 102 can effectively perform its performance, and the practicability is good. The special design of this box transformer makes the internal air impurity content low, and it only needs to remove the U-shaped shell 605 twice a year to remove the internal air impurities, which is highly practical.

[0041] In addition, by designing a top frame 108 on the top of the sealed shell 101 to support the ceiling 109, it can play a role in keeping out rain, which can effectively prevent the air supply fan 206 and the exhaust fan 207 from being damaged by rainy weather and increase their service life. By designing a ladder 107 outside the sealed shell 101, it is convenient for maintenance personnel to climb to the top of the sealed shell 101 to inspect and maintain the air supply fan 206, exhaust fan 207 and stepper motor 501 exposed to the outside. The structure is simple and reasonable, which reduces the difficulty of maintenance.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind turbine box transformer with air cooling and heat dissipation, comprising a transformer mechanism (1), characterized in that: A shell mechanism (2) is installed on the top of the transformer mechanism (1); a shunt assembly (3) is arranged near the center of the shell mechanism (2); a self-cleaning mechanism (4) is arranged on the outside of the shunt assembly (3); a driving mechanism (5) is arranged on the top of the shell mechanism (2); and a dust cleaning mechanism (6) is arranged near the front of the shell mechanism (2); The flow splitter assembly (3) comprises a circular shell (301), the outer surface of the circular shell (301) being provided with a first air inlet (302) and a second air inlet (303) at positions close to the left side, and the outer surface of the circular shell (301) being provided with a first air extraction port (304) and a second air extraction port (305) at positions close to the outside; The self-cleaning mechanism (4) comprises an annular shell (401), two air supply channels (405) are provided inside the annular shell (401) near the left side, two ventilation channels (404) are provided inside the annular shell (401) near the right side, and filter plates (406) are connected to the outer surface of the annular shell (401) at positions outside the air supply channels (405) and the ventilation channels (404).

2. The wind turbine box transformer with air cooling and heat dissipation according to claim 1 is characterized in that: The transformer mechanism (1) comprises a sealed shell (101), a transformer body (102) is installed on the inner bottom of the sealed shell (101), a ventilation shell (103) is installed on the inner surface wall of one side of the sealed shell (101), and an air supply shell (104) is installed on the inner surface wall of the other side of the sealed shell (101), and the outer surfaces of the opposite sides of the ventilation shell (103) and the air supply shell (104) are both provided with a plurality of exhaust grooves, and the outer surfaces of the opposite sides of the ventilation shell (103) and the air supply shell (104) are respectively fixedly connected with a ventilation pipe (105) and an air supply pipe (106) at positions close to the top.

3. The wind power box transformer with air cooling and heat dissipation according to claim 2 is characterized in that: The housing mechanism (2) comprises a bottom housing (201), the bottom housing (201) being fixedly connected to the top of the sealed housing (101), the bottom of the bottom housing (201) being provided with a ventilation port (208) and an air supply port (209) respectively at positions near two front corners, the top of the ventilation pipe (105) being fixedly connected to the bottom of the bottom housing (201) at a position outside the ventilation port (208), and the top of the air supply pipe (106) being fixedly connected to the bottom of the bottom housing (201) at a position outside the air supply port (209).

4. The wind power box transformer with air cooling and heat dissipation according to claim 3 is characterized in that: A top cover (204) is fixedly mounted on the top of the bottom shell (201); partition blocks (203) are fixedly connected to the inner surface walls of the four sides of the bottom shell (201) near the center; the annular shell (401) is rotatably connected to the inner bottom of the bottom shell (201) and has four expansion blocks (402) fixedly connected to the outer surface at equal intervals; the outer surface of the expansion block (402) is slidably fitted with the outer surface of the partition block (203); and an opening (202) is provided on the front surface of the bottom shell (201).

5. The wind power box transformer with air cooling and heat dissipation according to claim 4 is characterized in that: The top of the top cover (204) is fixedly connected to a motor frame (205), an air supply fan (206) is installed at a position of the top of the top cover (204) near one of the rear corners, and an exhaust fan (207) is installed at a position of the top of the top cover (204) near another rear corner.

6. The wind power box transformer with air cooling and heat dissipation according to claim 5 is characterized in that: The circular shell (301) is fixedly connected to the center of the inner bottom of the bottom shell (201), and the outer surface of the circular shell (301) and the inner surface wall of the inner ring groove (403) are slidably fitted, the first air inlet (302) and the second air inlet (303) are connected, the first air extraction port (304) and the second air extraction port (305) are connected, the first air inlet (302) and the second air inlet (303) are respectively connected to the two air supply channels (405), and the first air extraction port (304) and the second air extraction port (305) are respectively connected to the two ventilation channels (404).

7. The wind power box transformer with air cooling and heat dissipation according to claim 6 is characterized in that: The driving mechanism (5) comprises a stepper motor (501), the stepper motor (501) is fixedly mounted on the top of the motor frame (205), and the output end of the stepper motor (501) rotates through the motor frame (205) and the top of the top cover (204) and extends to the bottom of the top cover (204), the output end of the stepper motor (501) is fixedly connected to a driving gear (503), the top of the annular shell (401) is fixedly connected to an internal gear (407) near the edge, the driving gear (503) and the internal gear (407) are meshed and connected, and the number of teeth of the internal gear (407) is greater than the number of teeth of the driving gear (503).

8. The wind power box transformer with air cooling and heat dissipation according to claim 7 is characterized in that: The cleaning mechanism (6) comprises a first roller (601), a second roller (602) and a U-shaped shell (605); the first roller (601) and the second roller (602) are both rotatably connected to the inner bottom of the bottom shell (201) near the front side; the second roller (602) is located outside the opening (202); a second transmission belt (603) is transmission-connected between the outer surfaces of the first roller (601) and the second roller (602); and a plurality of groups of nylon brushes (604) are arranged on the outer surface of the second transmission belt (603).

9. The wind power box transformer with air cooling and heat dissipation according to claim 8 is characterized in that: The U-shaped shell (605) is fixedly connected to the front surface of the bottom shell (201) at a position outside the opening (202); a brush plate (606) is fixedly connected to the inner wall of one side of the U-shaped shell (605); the brush plate (606) cooperates with the nylon brush (604); a large pulley (502) is fixedly connected to the outer surface of the output end of the stepper motor (501) at a position above the top cover (204); a first transmission belt (504) is sleeved on the outer surface of the large pulley (502); a small pulley (505) is provided on the inner wall of the first transmission belt (504) near the front side; a connecting shaft (506) is fixedly connected to the center of the bottom of the small pulley (505); the bottom end of the connecting shaft (506) rotates through the top of the top cover (204) and is fixedly connected to the top of the second roller (602).

10. The wind turbine box transformer with air cooling and heat dissipation according to claim 9 is characterized in that: A ladder (107) is fixedly mounted on the outer surface of one side of the sealed shell (101); top frames (108) are fixedly connected to the top of the sealed shell (101) near four corners; a ceiling (109) is fixedly connected between the tops of the four top frames (108); the ceiling (109) is located above the bottom shell (201) and the top of the ceiling (109) is of a reduced design.

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