Annular fan with stable heat dissipation performance for transformer

Abstract

The invention relates to the field of annular fan structures, in particular to a transformer annular fan stable in heat dissipation performance, which comprises a fan body and a transformer body, an air outlet end of the fan body is fixedly connected with an annular pipe, and the annular pipe surrounds the transformer body, and is characterized in that one side of the transformer body is provided with an adjusting mechanism; a connecting mechanism is arranged on one side of the fan body, an air door mechanism is arranged in the annular pipe, and a cleaning mechanism is arranged at the air draft end of the fan body. The adjusting mechanism comprises a connecting plate fixedly connected with one side of the transformer body, air in different directions can be extracted through left-right deviation while the draught fan ascends and descends, a rotating plate in the ventilation opening is matched with a rotating plate in the exhaust opening to rotate, the flowing path of airflow can be adjusted, the overall heat dissipation efficiency of the dry-type transformer is improved, and the heat dissipation efficiency of the dry-type transformer is improved. The service life of parts is guaranteed, and the structure deformation or damage risk is reduced.

Description

Technical Field

[0001] The invention relates to the field of annular fan structures, and in particular to an annular fan for a transformer with stable heat dissipation performance. Background Art

[0002] Dry-type transformer is an important power equipment, which is characterized by the iron core and windings are not immersed in insulating oil, but rely on natural air cooling or forced air cooling to dissipate heat. Dry-type transformers are mainly composed of three parts: iron core made of silicon steel sheets, epoxy resin cast coils and shell. Among them, the iron core is a heat transfer component, and it also plays a role in supporting the windings; the windings are composed of high-voltage windings, low-voltage windings and neutral line windings, which respectively undertake the functions of stepping up and down, transmitting electric energy and protection; the shell is used to support the iron core and windings, and play a protective role. Since dry-type transformers generate a lot of heat when working, a transformer ring fan with stable heat dissipation performance is required.

[0003] In the prior art, the annular fan of the dry-type transformer generally includes a connector fixed on one side of the dry-type transformer, a ring tube is fixedly connected to one side of the connector, an air inlet is opened on one side of the ring tube, a vortex fan is fixedly connected to the inner wall of the air inlet, and a vent is opened on the top of the annular tube, and the dry-type transformer is cooled by blowing through the vent.

[0004] However, when the above-mentioned device is in use, the vortex fan and the annular tube are fixed in position, and a relatively stable air flow path is formed inside and outside the device. As time goes by, especially when the dry-type transformer is working under high load or continuous operation, the heat generated will increase significantly. The fixed airflow channel may not be able to fully adapt to the changes in this heat output, causing some areas to become hot spots for heat accumulation. The hot spots are often located in places where the airflow is difficult to directly reach or the flow rate is significantly reduced, which will not only lead to a decrease in the overall heat dissipation efficiency of the dry-type transformer, but also shorten the life of parts and reduce energy efficiency, and ultimately cause structural deformation or damage due to uneven thermal stress. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a transformer annular fan with stable heat dissipation performance.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a transformer annular fan with stable heat dissipation performance, comprising a fan body and a transformer body, the air outlet end of the fan body is fixedly connected with an annular tube, the annular tube surrounds the transformer body, and is characterized in that: an adjustment mechanism is provided on one side of the transformer body, a connection mechanism is provided on one side of the fan body, a damper mechanism is provided in the annular tube, and a cleaning mechanism is provided on the air exhaust end of the fan body;

[0007] The adjusting mechanism comprises a connecting plate fixedly connected to one side of the transformer body, a connecting groove is provided on one side of the connecting plate, a connecting block is slidably connected to the inner wall of the connecting groove, a rotating motor is fixedly connected to the bottom outer wall of the connecting plate, a threaded rod is fixedly connected to the output shaft of the rotating motor, the threaded rod is connected to the connecting block by threads, the connecting block is fixedly connected to the outer wall of the annular tube, an adjusting block is fixedly connected to the top outer wall of the fan body, an adjusting groove with a spherical structure is provided on one side of the adjusting block, an adjusting ball is rotatably connected to the inner wall of the adjusting groove, an adjusting rod is rotatably connected to one side of the adjusting ball through a bearing, a steering groove with a wavy structure is provided on one side of the connecting plate, the adjusting rod and the inner wall of the steering groove form a sliding fit, airflows in different directions can be extracted, and sufficient airflow can be extracted at the exhaust end of the fan, the flow path of the airflow can be adjusted, the overall heat dissipation efficiency of the dry-type transformer is improved, the service life of parts is guaranteed, and the risk of structural deformation or damage is reduced.

[0008] Preferably, a ventilation hole is formed on the top outer wall of the annular tube close to the fan body, exhaust holes are formed on the outer walls at both ends of the top of the annular tube, and an air outlet is formed on the top outer wall of the annular tube away from the fan body. The inner wall area of ​​the air outlet is larger than the inner wall area of ​​the air outlet, and the inner wall surface area of ​​the air outlet is larger than the inner wall area of ​​the ventilator. The inner wall of the ventilator, the inner wall of the exhaust port and the inner wall of the outlet are all rotatably connected to a number of evenly distributed rotating shafts through bearings, and a rotating plate is fixedly connected to the surface of the rotating shaft. The diameters of the ventilator, the exhaust port and the air outlet increase successively, so that the exhaust volume can be balanced and a certain noise reduction effect can be achieved.

[0009] Preferably, the connecting mechanism includes a rotating tube fixedly connected and communicated with the exhaust end of the fan body, a rotating port is opened on the outer wall of the annular tube close to the fan body, a rotating shaft is fixedly connected to the top outer wall of the rotating tube, and the rotating shaft is rotatably connected to the top inner wall of the rotating port through a bearing. The setting of the rotating shaft can ensure that the air flow of the fan body is sufficient.

[0010] Preferably, a movable groove is provided on the outer wall of one side of the annular tube, and plate grooves are provided on the inner walls at both ends of the movable groove, and the inner wall of the plate groove and the inner wall of the movable groove are slidably connected with the same movable plate, and a first movable gear is fixedly connected to the top of the rotating shaft, and one side of the movable plate of the first movable gear is meshed, and a second movable gear is fixedly connected to one side of the rotating shaft located in the ventilating port, and the second movable gear is meshed with the top of the movable plate. The setting of the movable plate can adjust the blowing direction of the side of the transformer body.

[0011] Preferably, the damper mechanism includes a worm gear fixedly connected to one side of a rotating shaft located in the exhaust port, and positioning grooves corresponding to the exhaust port are provided on the outer walls at both ends of the annular tube. A worm is rotatably connected to the inner wall of one end of the positioning groove through a bearing, and the worm is meshed with the worm gear. The setting of the worm gear can cause the worm gear to rotate when it rotates, thereby adjusting the blowing direction of the end of the transformer body.

[0012] Preferably, a positioning gear is fixedly connected to one side of the worm, and both ends of the transformer body are fixedly connected to a positioning plate with a U-shaped structure. A tooth groove is opened on one side of the positioning plate, and the tooth groove is meshed with the positioning gear. The setting of the positioning gear and the rotation of the positioning gear can enable the worm to rotate.

[0013] Preferably, the cleaning mechanism includes a filter screen plate, which is made of metal. The inner wall of the shell of the fan body is provided with a mounting groove that forms a sliding fit with the fixed frame of the filter screen plate. A plurality of evenly distributed limit rods are fixedly connected to one side of the fixed frame of the filter screen plate. The inner wall of one side of the mounting groove is provided with a limit groove that corresponds one-to-one with the limit rod. The inner wall of the limit groove forms a sliding fit with the limit rod. The setting of the limit rod can prevent the filter screen plate from rotating.

[0014] Preferably, one side of the output shaft of the fan body is connected to a fixed cylinder by a thread, and one side outer wall of the fixed cylinder is fixedly connected to a fixed rod with a U-shaped structure, and one side of the fixed rod is fixedly connected to a scraper, and the scraper is in contact with the filter screen. The scraper is arranged to rotate when the fixed cylinder rotates, thereby avoiding the accumulation of impurities on the surface of the filter screen.

[0015] Preferably, the filter screen plate has a double-layer cavity structure, a cleaning port is opened on one outer wall of the filter screen plate, and the inner wall of the filter screen plate is rotatably connected to a plurality of evenly distributed cleaning shafts through a fixed support rod, the cleaning shafts correspond to the cleaning ports one by one, a force plate is fixedly connected to one side of the cleaning shaft, a force block is fixedly connected to the side of the force plate away from the cleaning shaft, the force block is located in the cleaning port, a force plate is fixedly connected to the side of the cleaning shaft away from the force plate, the force plate is in contact with the filter screen plate, a reset spring is fixedly connected to one side of the force plate, the contact surface between the force block and the scraper is an inclined surface, and the setting of the force block enables the force plate to perform a high-frequency impact operation on the inner wall of the filter screen plate, thereby further cleaning the dust.

[0016] Preferably, a dust collection port is provided on the bottom outer wall of the shell of the fan body, and a sealing plate is fixedly connected to a side of the scraper close to the fan body shell. The sealing plate has an arc-shaped structure and is in contact with the inner wall of the mounting groove. The provision of the sealing plate can facilitate the falling of dust outside the fan body shell to avoid being sucked into the shell again.

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

[0018] 1. The present invention can simultaneously shift left and right by lifting and lowering the fan, and can extract air in different directions. Moreover, the rotating plate in the vent cooperates with the rotating plate in the exhaust port to rotate, which can adjust the flow path of the airflow, improve the overall heat dissipation efficiency of the dry-type transformer, ensure the life of parts, and achieve the effect of reducing the risk of structural deformation or damage.

[0019] 2. The inner wall of the filter screen can be cleaned by applying force to the force-bearing block through the scraper. At the same time, after the dust is discharged to the outside of the fan body shell, the sealing plate can block the airflow to prevent the dust from entering the fan body shell again, thereby ensuring the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of a transformer annular fan with stable heat dissipation performance according to the present invention;

[0021] Figure 2 A schematic diagram of a rotating tube structure of a transformer annular fan with stable heat dissipation performance according to the present invention;

[0022] Figure 3 A schematic diagram of the structure of an annular tube of an annular fan for a transformer with stable heat dissipation performance according to the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of a filter screen plate of a transformer annular fan with stable heat dissipation performance according to the present invention;

[0024] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 6 for Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0026] Figure 7 It is a schematic diagram of the rotating shaft structure of a transformer annular fan with stable heat dissipation performance according to the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of a positioning plate of a transformer annular fan with stable heat dissipation performance according to the present invention;

[0028] Fig. 9 A schematic diagram of a worm structure of a transformer annular fan with stable heat dissipation performance according to the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of a force-applying plate of a transformer annular fan with stable heat dissipation performance according to the present invention;

[0030] Fig.11 It is a schematic diagram of the cleaning shaft structure of a transformer annular fan with stable heat dissipation performance according to the present invention;

[0031] In the figure: 1. fan body; 2. annular tube; 3. transformer body; 4. connecting plate; 5. connecting groove; 6. connecting block; 7. rotating motor; 8. threaded rod; 9. adjusting block; 10. adjusting groove; 11. adjusting ball; 12. adjusting rod; 13. steering groove; 14. vent; 15. exhaust port; 16. outlet; 17. rotating shaft; 18. rotating plate; 19. rotating tube; 20. rotating port; 21. rotating shaft; 22. movable groove; 23. movable plate; 24. The first movable gear; 25, the second movable gear; 26, the worm wheel; 27, the positioning groove; 28, the worm; 29, the positioning gear; 30, the positioning plate; 31, the tooth groove; 32, the filter screen; 33, the installation groove; 34, the limit groove; 35, the limit rod; 36, the fixing cylinder; 37, the fixing rod; 38, the scraper; 39, the cleaning port; 40, the cleaning shaft; 41, the force plate; 42, the force plate; 43, the reset spring; 44, the force block; 45, the sealing plate; 46, the dust drop port. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] like Figure 1-Figure 11 The transformer annular fan with stable heat dissipation performance shown in the figure comprises a fan body 1 and a transformer body 3, the air outlet end of the fan body 1 is fixedly connected with an annular tube 2, and the annular tube 2 surrounds the transformer body 3, and is characterized in that: an adjustment mechanism is provided on one side of the transformer body 3, a connection mechanism is provided on one side of the fan body 1, a damper mechanism is provided in the annular tube 2, and a cleaning mechanism is provided on the air exhaust end of the fan body 1;

[0034] The adjustment mechanism includes a connecting plate 4 fixedly connected to one side of the transformer body 3, a connecting groove 5 is provided on one side of the connecting plate 4, a connecting block 6 is slidably connected to the inner wall of the connecting groove 5, a rotating motor 7 is fixedly connected to the bottom outer wall of the connecting plate 4, a threaded rod 8 is fixedly connected to the output shaft of the rotating motor 7, the threaded rod 8 is connected to the connecting block 6 by threads, the connecting block 6 is fixedly connected to the outer wall of the annular tube 2, an adjustment block 9 is fixedly connected to the top outer wall of the fan body 1, an adjustment groove 10 with a spherical structure is provided on one side of the adjustment block 9, an adjustment ball 11 is rotatably connected to the inner wall of the adjustment groove 10, and an adjustment rod 12 is rotatably connected to one side of the adjustment ball 11 through a bearing, a steering groove 13 with a wave-shaped structure is provided on one side of the connecting plate 4, and the adjusting rod 12 forms a sliding fit with the inner wall of the steering groove 13.

[0035] A vent 14 is provided on the top outer wall of the annular tube 2 close to the fan body 1, exhaust ports 15 are provided on the outer walls at both ends of the top of the annular tube 2, and an outlet 16 is provided on the top outer wall of the annular tube 2 away from the fan body 1, the inner wall area of ​​the outlet 16 is larger than the inner wall area of ​​the exhaust port 15, the inner wall surface area of ​​the exhaust port 15 is larger than the inner wall area of ​​the vent 14, the inner wall of the vent 14, the inner wall of the exhaust port 15 and the inner wall of the outlet 16 are all rotatably connected with a number of evenly distributed rotating shafts 17 through bearings, and a rotating plate 18 is fixedly connected to the surface of the rotating shaft 17, which can be rotated in conjunction with the rotation of the rotating shaft 17 through the rotating plate 18, so that the airflow direction in the vent 14 can be adjusted, and heat dissipation operations can be performed on different locations of the transformer body 3, and the diameters of the vent 14, the exhaust port 15 and the outlet 16 are increased successively, so that the exhaust volume can be balanced and a certain noise reduction effect can be achieved.

[0036] The connecting mechanism includes a rotating tube 19 fixedly connected and communicated with the exhaust end of the fan body 1, a rotating port 20 is opened on the outer wall of the annular tube 2 close to the fan body 1, and a rotating shaft 21 is fixedly connected to the top outer wall of the rotating tube 19. The rotating shaft 21 and the top inner wall of the rotating port 20 are rotatably connected through a bearing. The rotating shaft 21 can rotate in coordination with the rotation of the rotating tube 19. At this time, the exhaust direction of the fan body 1 can be adjusted to ensure that the air flow of the fan body 1 is sufficient.

[0037] A movable groove 22 is provided on the outer wall of one side of the annular tube 2, and plate grooves are provided on the inner walls at both ends of the movable groove 22. The inner wall of the plate groove and the inner wall of the movable groove 22 are slidably connected with the same movable plate 23. A first movable gear 24 is fixedly connected to the top of the rotating shaft 21, and one side of the movable plate 23 of the first movable gear 24 is meshed. A second movable gear 25 is fixedly connected to one side of the rotating shaft 17 located in the vent 14, and the second movable gear 25 is meshed with the top of the movable plate 23. The movable plate 23 can move when the first movable gear 24 rotates. The movement of the movable plate 23 can cause the second movable gear 25 to rotate. The rotation of the second movable gear 25 can cause the rotating plate 18 in the vent 14 to rotate, and the blowing direction of the side of the transformer body 3 can be adjusted.

[0038] The damper mechanism includes a worm gear 26 fixedly connected to one side of a rotating shaft 17 located in the exhaust port 15. Positioning grooves 27 corresponding to the exhaust port 15 are provided on the outer walls at both ends of the annular tube 2. A worm 28 is rotatably connected to the inner wall of one end of the positioning groove 27 through a bearing. The worm 28 is meshed with the worm gear 26. The worm gear 26 can be rotated by the worm 28. The rotation of the worm gear 26 can adjust the direction of the rotating plate 18 in the exhaust port 15, and can adjust the blowing direction of the end of the transformer body 3.

[0039] A positioning gear 29 is fixedly connected to one side of the worm 28, and a positioning plate 30 with a U-shaped structure is fixedly connected to both ends of the transformer body 3. A tooth groove 31 is opened on one side of the positioning plate 30, and the tooth groove 31 is meshed with the positioning gear 29. The positioning gear 29 can move and receive force on the positioning plate 30. At this time, the positioning gear 29 rotates, and the rotation of the positioning gear 29 can cause the worm 28 to rotate.

[0040] The cleaning mechanism includes a filter screen plate 32, which is made of metal. The inner wall of the shell of the fan body 1 is provided with a mounting groove 33 that forms a sliding fit with the fixed frame of the filter screen plate 32. A plurality of evenly distributed limiting rods 35 are fixedly connected to one side of the fixed frame of the filter screen plate 32. A limiting groove 34 corresponding to the limiting rod 35 is provided on the inner wall of one side of the mounting groove 33. The inner wall of the limiting groove 34 forms a sliding fit with the limiting rod 35. The limiting rod 35 can be directly inserted into the limiting groove 34 when the filter screen plate 32 is installed, so that the filter screen plate 32 can be prevented from rotating.

[0041] One side of the output shaft of the fan body 1 is connected to a fixed cylinder 36 through a thread, and one side outer wall of the fixed cylinder 36 is fixedly connected to a fixed rod 37 with a U-shaped structure, and one side of the fixed rod 37 is fixedly connected to a scraper 38, and the scraper 38 is in contact with the filter screen 32. The scraper 38 can rotate when the fixed cylinder 36 rotates. The rotation of the scraper 38 can clean the surface of the filter screen 32, thereby preventing impurities from accumulating on the surface of the filter screen 32.

[0042] The filter screen plate 32 has a double-layer cavity structure, and a cleaning port 39 is opened on the outer wall of one side of the filter screen plate 32. The inner wall of the filter screen plate 32 is rotatably connected to a plurality of evenly distributed cleaning shafts 40 through a fixed support rod. The cleaning shafts 40 correspond to the cleaning ports 39 one by one. A force plate 41 is fixedly connected to one side of the cleaning shaft 40, and a force block 44 is fixedly connected to the side of the force plate 41 away from the cleaning shaft 40. The force block 44 is located in the cleaning port 39, and the cleaning shaft 40 is fixed on the side away from the force plate 41. A force plate 42 is connected, and the force plate 42 contacts the filter screen plate 32. A reset spring 43 is fixedly connected to one side of the force plate 41. The contact surface between the force block 44 and the scraper 38 is an inclined surface. The force block 44 can be subjected to force when the scraper 38 rotates. At this time, it can rotate in the cleaning port 39, prompting the force plate 42 to perform a high-frequency impact operation on the inner wall of the filter screen plate 32, which can further clean the dust. The reset spring 43 can reset the force plate 41 and prepare for the next impact operation.

[0043] A dust outlet 46 is provided on the outer wall at the bottom of the shell of the fan body 1, and a sealing plate 45 is fixedly connected to a side of the scraper 38 close to the shell of the fan body 1. The sealing plate 45 has an arc-shaped structure, and the sealing plate 45 contacts the inner wall of the mounting groove 33. The sealing plate 45 can rotate when the scraper 38 rotates. When it rotates to the dust outlet 46, the airflow inside and outside the shell of the fan body 1 can be cut off, so that the dust outside the shell of the fan body 1 can be facilitated to fall to avoid being sucked into the shell again.

[0044] When in use, after the transformer body 3 and the fan are installed, the rotating motor 7 is started to rotate the threaded rod 8. The rotation of the threaded rod 8 can make the connecting block 6 slide in the inner wall of the connecting groove 5. The movement of the connecting block 6 can make the fan body 1 and the annular tube 2 move up and down. The lifting of the fan body 1 can perform blowing operations on different heights of the transformer body 3. As the annular tube 2 rises and falls, the adjusting rod 12 will slide in the inner wall of the steering groove 13 and cooperate with the adjusting ball 11 to rotate in the inner wall of the adjusting groove 10. At this time, the fan body 1 can be offset left and right, and airflows in different directions can be extracted to ensure that the exhaust end of the fan extracts a sufficient amount of airflow. The flow path of the airflow can be adjusted to improve the overall heat dissipation efficiency of the dry-type transformer, ensure the life of parts, and achieve the effect of reducing the risk of structural deformation or damage.

[0045] As the fan body 1 deviates left and right, the rotating tube 19 rotates in the inner wall of the rotating port 20, and the rotation of the rotating tube 19 can rotate the rotating shaft 21, and the rotation of the rotating shaft 21 can rotate the first movable gear 24, and the rotation of the first movable gear 24 can move the movable plate 23 in the plate slot, and the movement of the movable plate 23 can rotate the second movable gear 25, at which time the rotating shaft 17 and the rotating plate 18 can rotate, and the air outlet direction of the vent 14 can be adjusted, and the blowing operation can be further performed in different directions, thereby improving the heat dissipation effect of the transformer body 3;

[0046] As the annular tube 2 is raised and lowered, the positioning gear 29 can mesh with the inner wall of the tooth groove 31 and rotate. The rotation of the positioning gear 29 can rotate the worm 28, and the rotation of the worm 28 can rotate the worm wheel 26. The rotation of the worm wheel 26 can rotate the rotating shaft 17 and the rotating plate 18 located in the exhaust port 15, so that the wind direction at the end of the annular tube 2 can be adjusted, and the blowing operation can be further performed in different directions, thereby improving the heat dissipation effect of the transformer body 3;

[0047] When the fan body 1 is started, the output shaft of the fan body 1 will rotate, and the fixed cylinder 36 can drive the fixed rod 37 to rotate. The rotation of the fixed rod 37 can cause the scraper 38 to scrape the surface of the filter screen 32, so that the dust can fall. After the dust is discharged through the dust outlet 46, the sealing plate 45 will intermittently block the dust outlet 46. At this time, the dust outlet 46 is not affected by the suction force of the fan body 1, which can facilitate the continuous falling of dust and avoid being sucked into the housing of the fan body 1 again, so as to achieve the effect of ensuring the heat dissipation efficiency.

[0048] As the scraper 38 rotates, the scraper 38 can slide on the inclined surface of the force block 44. At this time, the force on the force block 44 can make the force plate 41 cooperate with the cleaning shaft 40 to rotate. The rotation of the cleaning shaft 40 can make the force plate 42 hit the filter screen 32, which can improve the cleaning effect of the filter screen 32. The reset spring 43 can reset the force block 44 and locate it in the cleaning port 39 again, further achieving the effect of ensuring the heat dissipation efficiency. When disassembling the filter screen 32, the fixing cylinder 36 is directly rotated and separated from the output shaft of the fan body 1. At this time, the scraper 38 and the filter screen 32 can be taken out in turn. When installing, the limit rod 35 is inserted into the limit groove 34 and the above operation is reversed.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above implementation cases. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A transformer annular fan with stable heat dissipation performance, comprising a fan body (1) and a transformer body (3), wherein an annular tube (2) is fixedly connected to the air outlet end of the fan body (1), and the annular tube (2) surrounds the transformer body (3), and is characterized in that: An adjusting mechanism is provided on one side of the transformer body (3), a connecting mechanism is provided on one side of the fan body (1), a damper mechanism is provided in the annular tube (2), and a cleaning mechanism is provided at the exhaust end of the fan body (1); The adjustment mechanism comprises a connecting plate (4) fixedly connected to one side of the transformer body (3); a connecting groove (5) is provided on one side of the connecting plate (4); a connecting block (6) is slidably connected to the inner wall of the connecting groove (5); a rotating motor (7) is fixedly connected to the outer wall of the bottom of the connecting plate (4); a threaded rod (8) is fixedly connected to the output shaft of the rotating motor (7); the threaded rod (8) is connected to the connecting block (6) by threads; the connecting block (6) is fixedly connected to the outer wall of the annular tube (2); an adjustment block (9) is fixedly connected to the outer wall of the top of the fan body (1); an adjustment groove (10) with a spherical structure is provided on one side of the adjustment block (9); an adjustment ball (11) is rotatably connected to the inner wall of the adjustment groove (10); an adjustment rod (12) is rotatably connected to one side of the adjustment ball (11) via a bearing; a steering groove (13) with a wave-shaped structure is provided on one side of the connecting plate (4); the adjustment rod (12) forms a sliding fit with the inner wall of the steering groove (13).

2. The transformer annular fan with stable heat dissipation performance according to claim 1, characterized in that: The annular tube (2) is provided with a ventilation opening (14) on the top outer wall close to the fan body (1), exhaust openings (15) are provided on the outer walls at both ends of the top of the annular tube (2), and an air outlet (16) is provided on the top outer wall away from the fan body (1), the inner wall area of ​​the air outlet (16) is larger than the inner wall area of ​​the air outlet (15), the inner wall surface area of ​​the air outlet (15) is larger than the inner wall area of ​​the ventilation opening (14), the inner wall of the air outlet (15) and the inner wall of the air outlet (16) are all rotatably connected to a plurality of evenly distributed rotating shafts (17) via bearings, and a rotating plate (18) is fixedly connected to the surface of the rotating shaft (17).

3. The transformer annular fan with stable heat dissipation performance according to claim 2, characterized in that: The connection mechanism comprises a rotating tube (19) fixedly connected to and in communication with the exhaust end of the fan body (1); a rotating port (20) is provided on the outer wall of one side of the annular tube (2) close to the fan body (1); a rotating shaft (21) is fixedly connected to the top outer wall of the rotating tube (19); and the rotating shaft (21) is rotatably connected to the top inner wall of the rotating port (20) via a bearing.

4. The transformer annular fan with stable heat dissipation performance according to claim 3, characterized in that: A movable groove (22) is provided on the outer wall of one side of the annular tube (2), and plate grooves are provided on the inner walls at both ends of the movable groove (22), and the inner wall of the plate groove and the inner wall of the movable groove (22) are slidably connected to the same movable plate (23), and a first movable gear (24) is fixedly connected to the top of the rotating shaft (21), and one side of the movable plate (23) of the first movable gear (24) is meshed, and a second movable gear (25) is fixedly connected to one side of the rotating shaft (17) located in the vent (14), and the second movable gear (25) is meshed with the top of the movable plate (23).

5. The transformer annular fan with stable heat dissipation performance according to claim 1, characterized in that: The damper mechanism comprises a worm gear (26) fixedly connected to one side of a rotating shaft (17) located in the air outlet (15); the outer walls at both ends of the annular tube (2) are provided with positioning grooves (27) corresponding to the air outlet (15); the inner wall at one end of the positioning groove (27) is rotatably connected to a worm (28) via a bearing; the worm (28) is meshed with the worm gear (26).

6. The transformer annular fan with stable heat dissipation performance according to claim 5, characterized in that: A positioning gear (29) is fixedly connected to one side of the worm (28), and a positioning plate (30) with a U-shaped structure is fixedly connected to both ends of the transformer body (3), and a tooth groove (31) is provided on one side of the positioning plate (30), and the tooth groove (31) is meshed with the positioning gear (29).

7. The transformer annular fan with stable heat dissipation performance according to claim 1, characterized in that: The cleaning mechanism comprises a filter screen plate (32), the filter screen plate (32) being made of metal, the inner wall of the shell of the fan body (1) being provided with a mounting groove (33) which forms a sliding fit with a fixing frame of the filter screen plate (32), a plurality of evenly distributed limiting rods (35) being fixedly connected to one side of the fixing frame of the filter screen plate (32), a limiting groove (34) corresponding to the limiting rods (35) being provided on the inner wall of one side of the mounting groove (33), and the inner wall of the limiting groove (34) forming a sliding fit with the limiting rod (35).

8. The transformer annular fan with stable heat dissipation performance according to claim 7, characterized in that: One side of the output shaft of the fan body (1) is connected to a fixing cylinder (36) via a thread, one side outer wall of the fixing cylinder (36) is fixedly connected to a fixing rod (37) in a U-shaped structure, one side of the fixing rod (37) is fixedly connected to a scraper (38), and the scraper (38) is in contact with the filter screen plate (32).

9. The transformer annular fan with stable heat dissipation performance according to claim 8, characterized in that: The filter screen plate (32) is a double-layer cavity structure. A cleaning port (39) is provided on one side of the outer wall of the filter screen plate (32). The inner wall of the filter screen plate (32) is rotatably connected to a plurality of evenly distributed cleaning shafts (40) through a fixed support rod. The cleaning shafts (40) correspond to the cleaning ports (39) one to one. A force plate (41) is fixedly connected to one side of the cleaning shaft (40). A force block (44) is fixedly connected to the side of the force plate (41) away from the cleaning shaft (40). The force block (44) is located in the cleaning port (39). A force plate (42) is fixedly connected to the side of the cleaning shaft (40) away from the force plate (41). The force plate (42) contacts the filter screen plate (32). A reset spring (43) is fixedly connected to one side of the force plate (41). The contact surface between the force block (44) and the scraper (38) is an inclined surface.

10. The transformer annular fan with stable heat dissipation performance according to claim 9, characterized in that: The outer wall at the bottom of the shell of the fan body (1) is provided with a dust drop opening (46); a sealing plate (45) is fixedly connected to a side of the scraper (38) close to the shell of the fan body (1); the sealing plate (45) is in an arc-shaped structure; and the sealing plate (45) is in contact with the inner wall of the mounting groove (33).

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