A transformer cooling and heat dissipation device

Abstract

This utility model relates to the field of power equipment technology and discloses a cooling and heat dissipation device for transformers, including an oil tank body. The inner cavity of the oil tank body is provided with an iron core winding body. Eight steel-aluminum composite fins are arranged in parallel between oil pipe three and oil pipe four. The high thermal conductivity of the aluminum layer accelerates the transfer of oil heat to the air, and the steel base ensures structural stability. Secondly, when the impeller of the cleaning component is driven to rotate by the fan body, the upper and lower nylon scrapers move in a circular motion against the outer wall of the fins through the rotation of the impeller, thereby removing dust and impurities from the surface of the fins. This avoids the heat dissipation efficiency reduction caused by dust accumulation in traditional heat dissipation devices. At the same time, the rotation of the impeller will form a vortex with the airflow, thereby accelerating the airflow around the fins. In conjunction with five sets of movable components symmetrically distributed on both sides of the oil tank in a 3:2 ratio, the heat dissipation area is increased and the heat exchange rate is improved.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a cooling and heat dissipation device for transformers. Background Technology

[0002] In power systems, transformers are the core equipment for energy conversion and transmission. During operation, the iron core windings of transformers generate a lot of heat. If heat cannot be dissipated in time, it will lead to increased oil temperature, decreased insulation performance, and even equipment failure. Therefore, cooling and heat dissipation devices are a key component for the safe and stable operation of transformers.

[0003] Existing transformer cooling devices typically use finned structures made of pure steel. Due to the low thermal conductivity of steel, the heat transfer efficiency is limited, which may be insufficient to meet the heat dissipation requirements of large-capacity transformers. At the same time, the fins are exposed to the air for a long time, and dust and impurities easily accumulate on their surface. Traditional devices lack an effective automatic cleaning mechanism and require regular manual cleaning, which not only increases maintenance costs but also requires shutdown during cleaning, affecting the continuity of power supply. If the accumulated dust is not removed in time, it may also lead to a decrease in heat dissipation efficiency and, in severe cases, cause the equipment to overheat. Therefore, we have introduced a transformer cooling device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cooling and heat dissipation device for transformers, which has the advantages of being clean, enhancing heat dissipation, and facilitating disassembly and maintenance, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a cooling and heat dissipation device for a transformer, comprising an oil tank body, an iron core winding body disposed within the inner cavity of the oil tank body, an outer shell and a second oil pump disposed on the outer wall of the oil tank body, a first oil pump fixedly mounted on the outer wall of the outer shell, an oil pipe 1 and an oil pipe 2 disposed on the outer wall of the first oil pump, a first flange disposed on the outer wall of the second oil pipe, an oil pipe 3 disposed on the inner wall of the first flange, a mounting top cover disposed on the top of the third oil pipe, fins disposed on the bottom of the mounting top cover, a mounting base disposed on the top of the fins, an oil pipe 4 disposed on the bottom of the fins, and a first oil pipe 5 disposed on the outer wall of the fourth oil pipe. Two flanges are provided. The outer wall of the second oil pump is respectively provided with oil pipe six and oil pipe five. The inner cavity of the mounting base is provided with a mounting connection assembly. The outer wall of the fin is provided with a cleaning assembly. The cleaning assembly includes a bearing fixedly mounted on the outer wall of the fin. A rotating shaft is rotatably sleeved on the inner wall of the bearing. An impeller is fixedly sleeved on the outer wall of the rotating shaft. A sliding groove is opened on the outer edge of the impeller. A lower nylon scraper is provided at the bottom end of the outer edge of the impeller. An upper nylon scraper is provided at the top end of the outer edge of the impeller. A magnet is embedded in the inner wall of the impeller. A magnet is embedded in the lower nylon scraper. A magnet is embedded in the inner wall of the upper nylon scraper. A fan body is provided on the inner wall of the outer casing.

[0006] As a preferred technical solution of this utility model: the outer shell, oil pipe one, first oil pump, oil pipe two, first flange, oil pipe three, mounting top cover, fins, mounting base, oil pipe four, second flange, oil pipe five, second oil pump, oil pipe six, mounting connection assembly, fan body and cleaning assembly are regarded as a set of movable components, and the number of such movable components is five sets. Three sets of movable components are set on one side of the oil tank body and two sets of movable components are set on the other side of the oil tank body.

[0007] As a preferred technical solution of this utility model: the number of fins is eight, and the eight fins are arranged in a group, respectively arranged in parallel at the bottom of oil pipe three and the top of oil pipe four, and the eight fins are made of steel-aluminum composite material.

[0008] As a preferred technical solution of this utility model: the number of cleaning components is fourteen sets, and the fourteen sets of cleaning components are divided into two groups, each group consisting of seven components. One group is set at the middle position of the upper end of the two fins, and the other group is set at the middle position of the lower end of the two fins. The number of fan bodies is two, and they are respectively set to correspond to the two groups of seven cleaning components.

[0009] As a preferred technical solution of this utility model: the outer walls of the lower nylon scraper and the upper nylon scraper are adapted to the shape of the inner wall of the groove; the top of the first magnet and the un-embedded side of the third magnet are S and N poles, and are magnetically attracted to each other; the bottom of the first magnet and the un-embedded side of the second magnet are N and S poles, and are magnetically attracted to each other; the outer edges of the lower nylon scraper and the upper nylon scraper are attached to the outer wall of the fin and move in a circular motion.

[0010] As a preferred technical solution of this utility model: the installation connection assembly is regarded as a set of movable components, and there are two sets of such movable components, which are symmetrically arranged with oil pipe three as the center. There are two installation connection assemblies, which are respectively installed between the installation top cover and the fin, and are used to realize the connection and fixation between the fin and the oil pipe three.

[0011] As a preferred technical solution of this utility model: the mounting connection assembly includes a circular groove opened in the inner wall of the mounting base, the inner wall of the mounting top cover is respectively provided with a ball groove and a guide groove, the inner cavity of the circular groove is respectively provided with a first spring and a lock ball, the inner wall of the lock ball is provided with a slot, and the inner cavity of the guide groove is respectively provided with a pin and a second spring.

[0012] As a preferred technical solution of this utility model: the first spring is located at the bottom of the lock ball, with one end overlapping the bottom of the first spring and the other end overlapping the inner wall of the circular groove. The diameter of the lock ball is larger than the opening diameter of the circular groove. The outer wall shape of the lock ball is adapted to the inner wall shape of the groove. The top of the lock ball is slidably fitted to the outer wall of the pin. The outer wall of the pin is slidably fitted to the inner wall of the guide groove. The second spring is located on one side of the pin, with one end overlapping the outer wall of the pin and the other end overlapping the inner wall of the guide groove. The outer wall shape of the pin is adapted to the inner wall shape of the slot.

[0013] As a preferred technical solution of this utility model: one end of oil pipe one is connected to the oil outlet of the oil tank body, and the other end is connected to the oil inlet of the first oil pump; one end of oil pipe two is connected to the oil outlet of the first oil pump, and the other end is connected to the oil inlet of oil pipe three; the first flange is located at the connection of oil pipe three and oil pipe two, and functions to connect and fix; one end of oil pipe five is connected to the oil outlet of oil pipe four, and the other end is connected to the oil inlet of the second oil pump; one end of oil pipe six is ​​connected to the oil outlet of the second oil pump, and the other end is connected to the oil inlet of the oil tank body; the second flange is located at the connection of oil pipe four and oil pipe five, and functions to connect and fix.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The transformer cooling and heat dissipation device uses eight steel-aluminum composite fins distributed in parallel between oil pipes three and four. The high thermal conductivity of the aluminum layer accelerates the transfer of heat from the oil to the air, while the steel base ensures structural stability. Secondly, when the impeller of the cleaning component is driven by the fan body to rotate, the upper and lower nylon scrapers move in a circular motion against the outer wall of the fins through the rotation of the impeller, thereby removing dust and impurities from the fin surface. This avoids the heat dissipation efficiency reduction caused by dust accumulation in traditional heat dissipation devices. At the same time, the rotation of the impeller will form a vortex with the airflow, thereby accelerating the airflow around the fins. Combined with the five sets of movable components symmetrically distributed on both sides of the oil tank in a 3:2 ratio, the heat dissipation area is increased and the heat exchange rate is improved.

[0016] 2. The transformer cooling and heat dissipation device utilizes the cooperation of the first spring, lock ball, and pin to achieve quick disassembly and assembly of the fins through the installation and connection components, thereby shortening the disassembly and assembly time of the fin assembly. Secondly, the upper and lower nylon scrapers can be quickly replaced by sliding through the slide groove and cooperating with magnet one, magnet two, and magnet three, which can be completed without tools, thereby reducing maintenance costs. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the present invention.

[0019] Figure 3 This is a schematic diagram of the cooling and heat dissipation structure of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the installation and connection assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the cleaning component structure of this utility model;

[0022] Figure 6 This is a schematic cross-sectional view of the cleaning component of this utility model;

[0023] Figure 7 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Oil tank body; 2. Iron core winding body; 3. Outer shell; 4. Oil pipe one; 5. First oil pump; 6. Oil pipe two; 7. First flange; 8. Oil pipe three; 9. Mounting top cover; 10. Fins; 11. Mounting base; 12. Oil pipe four; 13. Second flange; 14. Oil pipe five; 15. Second oil pump; 16. Oil pipe six; 17. Mounting connection assembly; 18. Fan body; 19. Cleaning assembly Components; 171, circular groove; 172, ball groove; 173, guide groove; 174, first spring; 175, lock ball; 176, slot; 177, pin; 178, second spring; 191, bearing; 192, rotating shaft; 193, impeller; 194, slide groove; 195, lower nylon scraper; 196, upper nylon scraper; 197, magnet one; 198, magnet two; 199, magnet three. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 7A transformer cooling and heat dissipation device includes an oil tank body 1, an iron core winding body 2 disposed within the inner cavity of the oil tank body 1, an outer shell 3 and a second oil pump 15 disposed on the outer wall of the oil tank body 1, a first oil pump 5 fixedly mounted on the outer wall of the outer shell 3, an oil pipe 4 and an oil pipe 6 disposed on the outer wall of the first oil pump 5, a first flange 7 disposed on the outer wall of the oil pipe 6, an oil pipe 8 disposed on the inner wall of the first flange 7, a mounting cover 9 disposed on the top of the oil pipe 8, fins 10 disposed on the bottom of the mounting cover 9, a mounting base 11 disposed on the top of the fins 10, an oil pipe 12 disposed on the bottom of the fins 10, a second flange 13 disposed on the outer wall of the oil pipe 12, and an oil pipe 16 and an oil pipe 12 disposed on the outer wall of the second oil pump 15. The inner cavity of the mounting base 11 is provided with a mounting connection assembly 17. The outer wall of the fin 10 is provided with a cleaning assembly 19. The cleaning assembly 19 includes a bearing 191 fixedly mounted on the outer wall of the fin 10. The inner wall of the bearing 191 is rotatably sleeved with a rotating shaft 192. The outer wall of the rotating shaft 192 is fixedly sleeved with an impeller 193. The outer edge of the impeller 193 is provided with a sliding groove 194. The bottom of the outer edge of the impeller 193 is provided with a lower nylon scraper 195. The top of the outer edge of the impeller 193 is provided with an upper nylon scraper 196. The inner wall of the impeller 193 is inlaid with a magnet 197. The lower nylon scraper 195 is inlaid with a magnet 198. The inner wall of the upper nylon scraper 196 is inlaid with a magnet 199. The inner wall of the outer casing 3 is provided with a fan body 18.

[0027] In the above structure, the cleaning component 19 works in conjunction with the fan body 18 to make the airflow generated by the fan body 18 drive the impeller 193 to rotate. The impeller 193 uses the upper nylon scraper 196 and the lower nylon scraper 195 to efficiently remove dust. At the same time, the rotation of the impeller 193 accelerates the airflow to form a vortex, which enhances the heat exchange efficiency between the fins 10 and the air.

[0028] In a preferred embodiment: the outer casing 3, oil pipe 1 4, first oil pump 5, oil pipe 2 6, first flange 7, oil pipe 3 8, mounting top cover 9, fins 10, mounting base 11, oil pipe 4 12, second flange 13, oil pipe 5 14, second oil pump 15, oil pipe 6 16, mounting connection assembly 17, fan body 18, and cleaning assembly 19 are considered as a set of movable components, and the number of such movable components is five sets. Three sets of movable components are arranged on one side of the oil tank body 1, and two sets of movable components are arranged on the other side of the oil tank body 1.

[0029] In the above structure, the outer shell 3, oil pipe 1 4, first oil pump 5, oil pipe 2 6, first flange 7, oil pipe 3 8, mounting top cover 9, fins 10, mounting base 11, oil pipe 4 12, second flange 13, oil pipe 5 14, second oil pump 15, oil pipe 6 16, mounting connection assembly 17, fan body 18, and cleaning assembly 19 are integrated into five sets of movable components, which are distributed on both sides of the oil tank body 1 in a ratio of 3 to 2. This can increase the heat dissipation area and improve the overall heat dissipation capacity while ensuring the balanced force on the oil tank body 1.

[0030] In a preferred embodiment, the number of fins 10 is eight, and the eight fins 10 are arranged in a group, respectively arranged parallel to the bottom of oil pipe three 8 and the top of oil pipe four 12. The eight fins 10 are made of steel-aluminum composite material.

[0031] In the above structure, eight steel-aluminum composite fins 10 are arranged in parallel at the bottom of oil pipe 3 8 and the top of oil pipe 4 12. The steel-aluminum composite material has both good thermal conductivity and structural strength, thereby achieving efficient heat transfer and enhancing the heat dissipation effect.

[0032] In a preferred embodiment: the number of cleaning components 19 is fourteen sets, and the fourteen sets of cleaning components 19 are divided into two groups, each group consisting of seven components. One group is set at the middle of the upper end of the two fins 10, and the other group is set at the middle of the lower end of the two fins 10. The number of fan bodies 18 is two, and they are respectively set to correspond to the two groups of seven cleaning components 19.

[0033] In the above structure, the fourteen cleaning components 19 are arranged in two groups at the middle of the upper and lower ends of the fins 10, and equipped with two corresponding fan bodies 18. The airflow generated by the fan bodies 18 can drive the cleaning components 19 to operate and clean the fins 10 in a targeted manner, so as to prevent the fins 10 from accumulating dust and affecting heat dissipation.

[0034] In a preferred embodiment: the outer walls of the lower nylon scraper 195 and the upper nylon scraper 196 are adapted to the shape of the inner wall of the groove 194; the top of magnet 197 and the unmounted side of magnet 3 199 are S and N poles, and are magnetically attracted to each other; the bottom of magnet 197 and the unmounted side of magnet 2 198 are N and S poles, and are magnetically attracted to each other; the outer edges of the lower nylon scraper 195 and the upper nylon scraper 196 are attached to the outer wall of the fin 10 and move in a circular motion.

[0035] In the above structure, by starting the fan body 18, the impeller 193 rotates, causing the outer edges of the upper nylon scraper 196 and lower nylon scraper 195 on the outer edge of the impeller 193 to closely adhere to the outer wall of the fin 10 and move in a circular motion. This effectively removes dust and impurities from the surface of the fin 10, ensuring heat dissipation efficiency. When the upper nylon scraper 196 and lower nylon scraper 195 need to be replaced, they can be slid out along the inner wall of the slide groove 194. This causes the bottom of the magnet 199 embedded in the inner wall of the upper nylon scraper 196 to disengage from the top of the magnet 197, weakening the magnetism as the upper nylon scraper 196 slides. The upper nylon scraper 196 can then be removed and replaced. Similarly, the top of the magnet 198 embedded in the inner wall of the lower nylon scraper 195 will disengage from the bottom of the magnet 197. The magnetism weakens as the lower nylon scraper 195 slides, allowing it to be removed and replaced. Similarly, when replacing and installing the upper nylon scraper 196 and the lower nylon scraper 195, the opposite operation allows for the fitting of the lower and upper nylon scrapers 195 and 196 with the groove 194, and the magnetic attraction of magnets 197, 198, and 199 for fixation. This ensures that the outer edges of the upper and lower nylon scrapers 196 and 195 closely adhere to the outer wall of the fin 10, performing a circular motion. This effectively removes dust and impurities from the surface of the fin 10, ensuring efficient heat dissipation. Furthermore, the rotation of the impeller 193 causes the airflow through the fin 10 area to form a swirling flow, accelerating air velocity and heat exchange efficiency, further enhancing heat dissipation. Thus, a dual function of cleaning and accelerated heat dissipation through swirling flow is achieved.

[0036] In a preferred embodiment: the mounting connection assembly 17 is regarded as a set of movable components, and there are two sets of movable components, which are symmetrically arranged with oil pipe 3 8 as the center. There are two mounting connection assemblies 17, which are respectively installed between the mounting top cover 9 and the fin 10, and are used to realize the connection and fixation between the fin 10 and the oil pipe 3 8.

[0037] In the above structure, two sets of mounting connection components 17 are symmetrically arranged with oil pipe 3 8 as the center, and are installed between the mounting top cover 9 and the fin 10, so as to securely connect the fin 10 and the oil pipe 3 8, thereby ensuring the stability and reliability of the structure.

[0038] In a preferred embodiment: the mounting connection assembly 17 includes a circular groove 171 formed in the inner wall of the mounting base 11, and a ball groove 172 and a guide groove 173 formed in the inner wall of the mounting top cover 9. The inner cavity of the circular groove 171 is provided with a first spring 174 and a lock ball 175. The inner wall of the lock ball 175 is provided with a slot 176. The inner cavity of the guide groove 173 is provided with a pin 177 and a second spring 178.

[0039] In a preferred embodiment: the first spring 174 is located at the bottom of the lock ball 175, with one end overlapping the bottom of the first spring 174 and the other end overlapping the inner wall of the circular groove 171. The diameter of the lock ball 175 is larger than the opening diameter of the circular groove 171. The outer wall shape of the lock ball 175 is adapted to the inner wall shape of the ball groove 172. The top of the lock ball 175 is slidably attached to the outer wall of the pin 177. The outer wall of the pin 177 is slidably attached to the inner wall of the guide groove 173. The second spring 178 is located on one side of the pin 177, with one end overlapping the outer wall of the pin 177 and the other end overlapping the inner wall of the guide groove 173. The outer wall shape of the pin 177 is adapted to the inner wall shape of the slot 176.

[0040] In the above structure, by pulling the pin 177, its outer wall slides along the inner wall of the guide groove 173, causing the sliding pin 177 to compress the second spring 178. At this time, the guide groove 173 pushes out of the inner cavity of the slot 176 opened in the inner wall of the lock ball 175. When the fin 10 is removed, the lock ball 175 will exit the inner cavity of the ball groove 172 under the external force of the fin 10. After the lock ball 175 exits the inner cavity of the ball groove 172, it slides along the inner wall of the circular groove 171 due to the force and drives the first spring 174 to compress, thereby retracting it into the inner cavity of the circular groove 171. After the fin 10 is completely removed, the lock ball 175 can be reset to the opening with a diameter smaller than the diameter of the lock ball 175 by the rebound of the first spring 174. The disassembly is completed in sequence. When replacing or upgrading the fins 10, and during installation, the lock ball 175 is aligned with the ball groove 172. The lock ball 175 is then reset by the return of the first spring 174 and locked into the inner cavity of the ball groove 172. The top of the lock ball 175 first contacts the outer wall of the pin 177, causing the pin 177 to slide again along the inner cavity of the guide groove 173 under the force of the lock ball 175, thus compressing the second spring 178. Therefore, after the lock ball 175 is fully inserted into the inner cavity of the ball groove 172, the pin 177 aligns with the slot 176. The pin 177 then automatically inserts into the inner cavity of the slot 176 using the return of the second spring 178, thus achieving stable fixation of the lock ball 175.

[0041] In a preferred embodiment: one end of oil pipe 1 4 is connected to the oil outlet of the oil tank body 1, and the other end is connected to the oil inlet of the first oil pump 5; one end of oil pipe 2 6 is connected to the oil outlet of the first oil pump 5, and the other end is connected to the oil inlet of oil pipe 3 8; the first flange 7 is located at the connection between oil pipe 3 8 and oil pipe 2 6, and serves to connect and fix the connection; one end of oil pipe 5 14 is connected to the oil outlet of oil pipe 4 12, and the other end is connected to the oil inlet of the second oil pump 15; one end of oil pipe 6 16 is connected to the oil outlet of the second oil pump 15, and the other end is connected to the oil inlet of the oil tank body 1; the second flange 13 is located at the connection between oil pipe 4 12 and oil pipe 5 14, and serves to connect and fix the connection.

[0042] In the above structure, by starting the first oil pump 5, the first oil pump 5 draws oil from the inner cavity of the oil tank body 1 through its oil pipe 1 4 and transfers it through oil pipe 2 6 to oil pipe 3 8. The oil in oil pipe 3 8 is then transferred through fins 10 to oil pipe 4 12 connected at the bottom. Similarly, by starting the second oil pump 15, the second oil pump 15 draws the cooled oil from the inner cavity of oil pipe 4 12 through oil pipe 5 14 and transfers it again to the inner cavity of the oil tank body 1 through oil pipe 6 16. This completes the cooling cycle and reduces the heat generated by the iron core winding body 2.

[0043] Working principle: First, when the transformer is running, the core winding body 2 generates heat, which is transferred to the oil in the tank body 1, raising the oil temperature. At this time, the first oil pump 5 starts, drawing hot oil from the oil outlet of the tank body 1 through oil pipe 1 4. After being pressurized by the first oil pump 5, the hot oil is transported to oil pipe 3 8 through oil pipe 2 6. The connection between oil pipe 2 6 and oil pipe 3 8 is fixed and sealed by the first flange 7. After entering oil pipe 3 8, the hot oil flows through eight parallel fins 10 at the bottom of the mounting top cover 9. Secondly, since the fins 10 are made of steel-aluminum composite material, which has both high thermal conductivity and structural strength, the heat is quickly transferred to the outside through the fins 10. At the same time, the two fan bodies 18 on the inner wall of the outer casing 3 start, and the generated airflow drives the corresponding positions. The operation of the cleaning component 19 causes the airflow generated by the fan body 18 to drive the impeller 193 to rotate on the bearing 191 via the shaft 192. This causes the upper nylon scraper 196 on the outer edge of the impeller 193 and the cleaning component 19 to be tightly adhered to the outer wall of the fins 10 through the magnetic attraction of the magnets 197, 198, and 199, making circular motions to remove dust from the surface of the fins 10. The fourteen cleaning components 19 are arranged in two groups, seven in each group corresponding to one fan body 18, ensuring uniform cleaning coverage. Furthermore, the rotation of the impeller 193 causes the airflow passing through the fin area to form a swirling flow, accelerating air velocity and heat exchange efficiency, further improving heat dissipation. Thus, the dual functions of cleaning and accelerated heat dissipation through swirling flow are achieved. Meanwhile, the oil cooled by the fins 10 flows into the bottom oil pipe 12, and then through the oil pipe 14. The connection between the oil pipes 12 and 14 is sealed by the second flange 13, allowing the oil to be delivered to the inlet of the second oil pump 15. The second oil pump 15 then pumps the cooled oil back to the inlet of the oil tank body 1 through the oil pipe 16, completing the oil circulation and continuously removing heat from the iron core winding body 2. When maintenance or replacement of the fins 10 is required, convenient disassembly and assembly are achieved by installing the connecting assembly 17. By pulling the pin 177, it slides along the guide groove 173 and compresses the second spring 178, causing the pin 177 to exit the slot 176 of the lock ball 175. Then, under the action of external force, the fins 10 drive the lock ball 175 out of the ball groove. 172. This causes the lock ball 175 to compress the first spring 174 and retract into the circular groove 171, allowing the fin 10 to be removed. During installation, the operation is reversed, causing the lock ball 175 to be engaged in the inner cavity of the ball groove 172 under the action of the first spring 174. The top of the lock ball 175 will first contact the pin 177, causing the pin 177 to slide again along the inner wall of the guide groove 173 due to the force exerted by the lock ball 175, thus compressing the second spring 178 again. At this point, after the lock ball 175 is fully inserted into the inner cavity of the ball groove 172, the pin 177 will align with the slot 176, allowing the pin 177 to automatically insert into the inner cavity of the slot 176 using the rebound of the second spring 178. This completes the fixing of the pneumatic lock ball 175.This ensures the stable installation of the fins 10. If the upper nylon scraper 196 and lower nylon scraper 195 in the cleaning assembly 19 need to be replaced, they can be slid out along the slide groove 194. This weakens the magnetic force of the connection between the upper and lower nylon scraper 196 and the impeller 193 due to sliding. After replacement, the operation is reversed. The magnetic force of magnets 197, 198, and 199 is used to fix the fins, and the slide groove 194 is repositioned to ensure that the lower nylon scraper 195 and upper nylon scraper 196 are tightly attached to the fins 10. The entire assembly operates collaboratively through five sets of movable components distributed in a 3:2 ratio on both sides of the oil tank body 1. While ensuring balanced force on the oil tank body 1, efficient and stable cooling is achieved through oil circulation, fin 10 heat dissipation, automatic cleaning, and convenient maintenance.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling heat sink device for a transformer comprising an oil tank main body (1), characterized in that: The inner cavity of the oil tank body (1) is provided with an iron core winding body (2). The outer wall of the oil tank body (1) is provided with an outer shell (3) and a second oil pump (15). The outer wall of the outer shell (3) is fixedly installed with a first oil pump (5). The outer wall of the first oil pump (5) is provided with an oil pipe one (4) and an oil pipe two (6). The outer wall of the oil pipe two (6) is provided with a first flange (7). The inner wall of the first flange (7) is provided with an oil pipe three (8). The top of the oil pipe three (8) is provided with an installation top cover (9). The bottom of the installation top cover (9) is provided with a fin (10). The top of the fin (10) is provided with an installation base (11). The bottom of the fin (10) is provided with an oil pipe four (12). The outer wall of the oil pipe four (12) is provided with a second flange (13). The outer wall of the second oil pump (15) is provided with an oil pipe six (16) and an oil pipe five (14). The inner cavity of the mounting base (11) is provided with a mounting connection assembly (17), and the outer wall of the fin (10) is provided with a cleaning assembly (19). The cleaning assembly (19) includes a bearing (191) fixedly mounted on the outer wall of the fin (10). A rotating shaft (192) is rotatably sleeved on the inner wall of the bearing (191), and an impeller (193) is fixedly sleeved on the outer wall of the rotating shaft (192). A sliding groove (194) is provided on the outer edge of the impeller (193). The impeller (193) is provided with a lower nylon scraper (195) at the bottom edge of its outer edge, and an upper nylon scraper (196) is provided with an upper nylon scraper (196) at the top edge of its outer edge. A magnet (197) is embedded in the inner wall of the impeller (193), a magnet (198) is embedded in the lower nylon scraper (195), and a magnet (199) is embedded in the inner wall of the upper nylon scraper (196). The fan body (18) is provided on the inner wall of the outer casing (3).

2. A cooling device for a transformer according to claim 1, characterized in that: The outer shell (3), oil pipe one (4), first oil pump (5), oil pipe two (6), first flange (7), oil pipe three (8), mounting top cover (9), fins (10), mounting base (11), oil pipe four (12), second flange (13), oil pipe five (14), second oil pump (15), oil pipe six (16), mounting connection assembly (17), fan body (18) and cleaning assembly (19) are considered as a set of movable components, and the number of such movable components is five sets. Three sets of movable components are set on one side of the oil tank body (1), and two sets of movable components are set on the other side of the oil tank body (1).

3. A cooling device for a transformer according to claim 1, characterized in that: The number of fins (10) is eight, and the eight fins (10) are arranged as a group, respectively set at the bottom of oil pipe three (8) and the top of oil pipe four (12) in parallel. The eight fins (10) are made of steel-aluminum composite material.

4. A cooling device for a transformer according to claim 1, characterized in that: The number of cleaning components (19) is fourteen, and the fourteen cleaning components (19) are divided into two groups, each group consisting of seven. One group is set at the middle position of the upper end of the two fins (10), and the other group is set at the middle position of the lower end of the two fins (10). The number of fan bodies (18) is two, and they are respectively set in relation to the two groups of seven cleaning components (19).

5. A cooling device for a transformer according to claim 4, characterized in that: The outer walls of the lower nylon scraper (195) and the upper nylon scraper (196) are adapted to the shape of the inner wall of the groove (194). The top of the magnet one (197) and the unmounted side of the magnet three (199) are S and N poles, and are magnetically attracted to each other. The bottom of the magnet one (197) and the unmounted side of the magnet two (198) are N and S poles, and are magnetically attracted to each other. The outer edges of the lower nylon scraper (195) and the upper nylon scraper (196) are attached to the outer wall of the fin (10) and move in a circular motion.

6. A cooling device for a transformer according to claim 1, characterized in that: The installation connection assembly (17) is considered as a set of movable components. There are two sets of movable components, which are symmetrically arranged with oil pipe three (8) as the center. There are two installation connection assemblies (17). The two installation connection assemblies (17) are respectively installed between the installation top cover (9) and the fin (10), and are used to realize the connection and fixation between the fin (10) and the oil pipe three (8).

7. A cooling device for a transformer according to claim 1, characterized in that: The mounting connection assembly (17) includes a circular groove (171) opened in the inner wall of the mounting base (11), and the inner wall of the mounting top cover (9) is provided with a ball groove (172) and a guide groove (173). The inner cavity of the circular groove (171) is provided with a first spring (174) and a lock ball (175). The inner wall of the lock ball (175) is provided with a slot (176). The inner cavity of the guide groove (173) is provided with a pin (177) and a second spring (178).

8. A cooling and heat dissipation device for a transformer according to claim 7, characterized in that: The first spring (174) is located at the bottom of the lock ball (175), with one end overlapping the bottom of the first spring (174) and the other end overlapping the inner wall of the circular groove (171). The diameter of the lock ball (175) is larger than the opening diameter of the circular groove (171). The outer wall shape of the lock ball (175) is adapted to the inner wall shape of the ball groove (172). The top of the lock ball (175) is slidably attached to the outer wall of the pin (177). The outer wall of the pin (177) is slidably attached to the inner wall of the guide groove (173). The second spring (178) is located on one side of the pin (177), with one end overlapping the outer wall of the pin (177) and the other end overlapping the inner wall of the guide groove (173). The outer wall shape of the pin (177) is adapted to the inner wall shape of the slot (176).

9. A cooling device for a transformer according to claim 1, characterized in that: One end of the first oil pipe (4) is connected to the oil outlet of the main body of the oil tank (1), and the other end is connected to the oil inlet of the first oil pump (5). One end of the second oil pipe (6) is connected to the oil outlet of the first oil pump (5), and the other end is connected to the oil inlet of the third oil pipe (8). The first flange (7) is located at the connection between the third oil pipe (8) and the second oil pipe (6), and serves to connect and fix them. One end of the fifth oil pipe (14) is connected to the oil outlet of the fourth oil pipe (12), and the other end is connected to the oil inlet of the second oil pump (15). One end of the sixth oil pipe (16) is connected to the oil outlet of the second oil pump (15), and the other end is connected to the oil inlet of the main body of the oil tank (1). The second flange (13) is located at the connection between the fourth oil pipe (12) and the fifth oil pipe (14), and serves to connect and fix them.

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