Dry-type transformer with protection function

By combining air cooling and water cooling with temperature sensors and semiconductor cooling boards, the problem of insufficient heat dissipation of dry-type transformers in high-temperature environments is solved, achieving stable operation and efficient cooling of the transformer and improving the protection effect of the equipment.

CN120933029APending Publication Date: 2025-11-11GUANGZHOU ZHAO NENG CO LTD
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Patent Information

Application Number
CN202511267689.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2025-11-11

AI Technical Summary

Technical Problem

Existing dry-type transformers lack flexible temperature regulation and intelligent heat dissipation systems in high-temperature environments, resulting in limited protection and an inability to effectively cope with complex working environments and load changes.

Method used

It employs a combination of air-cooled and heat dissipation components to dissipate heat through a combination of air and water cooling. It combines temperature sensors and semiconductor cooling plates to achieve real-time temperature monitoring and automatic adjustment. It utilizes inclined plates and diversion plates to concentrate and distribute water flow, ensuring uniform flow and effective cooling of return water.

Benefits of technology

This technology enables stable operation of transformers in high-temperature environments, improves heat dissipation efficiency and system stability, ensures continuous and effective cooling of equipment under high load conditions, reduces temperature loss, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a dry-type transformer with a protection function, and particularly relates to the technical field of transformers, the dry-type transformer comprises four supporting columns, the upper ends of the four supporting columns are jointly and fixedly connected with a first heat dissipation assembly, and the upper end of the first heat dissipation assembly is fixedly connected with an output assembly matched with the first heat dissipation assembly; the upper end of the output assembly is fixedly connected with an air cooling assembly, the upper end of the air cooling assembly is fixedly connected with a second heat dissipation assembly, and the upper end of the second heat dissipation assembly is fixedly connected with a plurality of first insulation sleeves used for achieving electrical connection and insulation protection. According to the dry-type transformer with the protection function, the fans are arranged to be matched with the shunting blocks, effective shunting and conveying of cooling air are achieved, it is ensured that air cooling is conducted on the upper portion and the lower portion of the inner cavity of the shell at the same time, and temperature loss is reduced; the double cooling modes of water cooling and air cooling are achieved, the heat dissipation efficiency is effectively improved, and stable operation of the system is guaranteed.
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Description

Technical Field

[0001] This invention relates to the field of transformer technology, and in particular to a dry-type transformer with protective functions. Background Technology

[0002] Dry-type transformers are widely used in power systems due to their oil-free and pollution-free characteristics, especially in applications with high environmental requirements. However, as the power load increases, the operating temperature of the transformer also rises. Excessive temperature can lead to aging of the transformer's insulation materials, performance degradation, or even damage. To ensure the long-term stable operation of the transformer, adopting effective heat dissipation methods is crucial.

[0003] Chinese Patent Publication No. CN117079947A discloses a dry-type transformer with protective function, relating to the technical field of transformers. The transformer includes a transformer body with several terminals and a disconnection assembly. The disconnection assembly includes several terminal blocks, each corresponding to a terminal, with one end of the terminal block slidably connected to the corresponding terminal. A switching drive assembly is connected to the terminal blocks, enabling them to move away from or closer to the corresponding terminal. This application, through the disconnection assembly, allows the transformer body to quickly and physically disconnect from external wires, thereby removing the transformer body from its working state and preventing it from generating heat, thus reducing the risk of fire and providing fire protection for the transformer body and its surrounding environment. However, the aforementioned patent still has the following drawbacks:

[0004] While the aforementioned patents can rely on physical disconnection to address overheating issues during use, this method has a slow response time and may fail to disconnect the power supply in time when the temperature is too high, thereby increasing the risk of fire. Furthermore, wear and malfunction of mechanical parts may cause the disconnection function to fail, making it unable to effectively deal with continuous overheating. In addition, traditional solutions lack intelligent temperature control and heat dissipation systems, making it impossible to flexibly adjust the transformer temperature, resulting in a relatively simple protection effect that cannot fully cope with complex working environments and load changes. Summary of the Invention

[0005] The main objective of this invention is to provide a dry-type transformer with protective functions, which can effectively solve the problem that the transformer temperature cannot be flexibly adjusted, resulting in a relatively simple protective effect.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A dry-type transformer with protective function includes four pillars. A heat dissipation component 1 is fixedly connected to the upper end of the four pillars. An output component that cooperates with the heat dissipation component 1 is fixedly connected to the upper end of the heat dissipation component 1. An air-cooling component is fixedly connected to the upper end of the air-cooling component. A heat dissipation component 2 is fixedly connected to the upper end of the heat dissipation component 2. A plurality of insulating sleeves 1 for realizing electrical connection and insulation protection are fixedly connected to the upper end of the heat dissipation component 2. A plurality of insulating sleeves 2 are fixedly connected to the upper end of the heat dissipation component 2.

[0008] Preferably, the heat dissipation component includes a housing, on which semiconductor cooling plates for heat conversion are fixedly connected on the left and right sides. Heat dissipation fins for dissipating heat from the semiconductor cooling plates are fixedly connected to the sides of the two semiconductor cooling plates that are far apart from each other. Two flow guide plates for turbulence are fixedly connected to the bottom of the sides of the two semiconductor cooling plates that are close to each other. A flow divider plate for diverting the output component is fixedly connected to the middle of the sides of the two semiconductor cooling plates that are close to each other. A water cooling assembly is fixedly connected to the upper part of the sides of the two semiconductor cooling plates that are close to each other.

[0009] Preferably, the aggregating component includes four connecting blocks, which are arranged in pairs. Each pair of adjacent connecting blocks has an inclined plate fixedly connected to one side of each other. A connecting rod is also fixedly connected to the bottom of the inclined plate at the rear. A transmission column is rotatably connected to the bottom of the connecting rod. A fan blade for cooling the return water is fixedly connected to the front end of the transmission column.

[0010] Preferably, the output component includes a fixed plate, a water pump for outputting water flow is fixedly connected to the upper end of the fixed plate, and an input pipe is fixedly connected to the input end of the water pump. A diversion box for diverting water flow is fixedly connected to the output end of the water pump through a connecting pipe. Two symmetrical output shells are fixedly connected to the front and rear sides of the diversion box. The two output shells are paired up, and a return shell is fixedly connected to the side closest to each other. The bottom end of the return shell is fixedly connected to the front and rear sides of the fixed plate and communicates with the bottom end of the fixed plate.

[0011] Preferably, the return shell includes an outer shell II, and a pressurizing block for collecting the returned water is fixedly connected to the inner cavity of the outer shell II. A rotating column is rotatably connected to the right side of the inner cavity of the outer shell II. An impeller that cooperates with the water collected by the pressurizing block is fixedly connected to the front side of the outer surface of the rotating column. A transmission belt is wound around the rear part of the outer surface of the impeller, and the other side of the transmission belt is wound around the transmission column.

[0012] Preferably, the air-cooling component includes a connecting block 2, with two symmetrically arranged input slots 1 on both the front and rear sides of the connecting block 2, and two symmetrically arranged return slots 1 in the middle of the upper end of the connecting block 2. A fixing plate 2 is fixedly connected to the inner cavity of the connecting block 2, and three fans for conveying cold air are also fixedly connected to the inner cavity of the fixing plate 2.

[0013] Preferably, the second heat dissipation component includes a cooling shell, two insulating shells are fixedly installed in the inner cavity of the cooling shell, and connecting plates for fixing are also installed on the outer surfaces of the two insulating shells. Lead blocks are provided in the inner cavities of the two insulating shells, and coils are wound and connected to the outer surfaces of the two lead blocks. A flow-diverting component is provided at the bottom of the cooling shell, and the flow-diverting component is used to divert the cold air generated by the fan.

[0014] Preferably, the cooling shell includes an outer shell three. The outer shell three has return channels two on both its front and rear sides. The outer shell three also has a cooling cavity, a return port, a return cavity, and a cooling trough two on both its front and rear sides. The cooling cavity, return port, return cavity, and cooling trough two are arranged in a mirror image on their left and right sides. The cooling cavity has input channels two on both its left and right sides that communicate with the cooling trough two. The inner cavity of the cooling cavity communicates with the inner cavity of the return cavity through the return port. A heat insulation plate is provided at the return cavity and the cooling trough two to isolate the temperature difference. Two drainage holes are provided on the upper sides of the two cooling troughs two and the two return cavities, respectively, close to each other. Drainage holes for return flow are provided in the middle of both the front and rear sides of the outer shell three.

[0015] Preferably, the diversion assembly includes a base plate, a conveying shell is fixedly connected to the bottom of the base plate, a diversion block for guiding airflow is fixedly connected to the inner cavity of the base plate, and a ventilation slot one for ventilation is also provided in the inner cavity of the diversion block. A second ventilation slot and a third ventilation slot are provided in the inner cavity of the base plate. The second ventilation slot is used to dissipate heat to the upper part of the inner cavity of the cooling shell, and the third ventilation slot is used to dissipate heat to the bottom of the inner cavity of the outer shell three.

[0016] Preferably, a temperature sensor is provided at the bottom of the connecting plate. When the temperature reaches the set threshold, the water pump will start and the three fans will stop working, so as to dissipate heat from the three inner cavities of the outer casing by water cooling.

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

[0018] 1. By setting up the air-cooling component and heat dissipation component two in combination, a preliminary air-cooling effect is achieved, effectively reducing the temperature of heat dissipation component two. By setting up the power source and output component in combination, the water circulation system is started, enabling effective temperature transfer and regulation between heat dissipation component one and heat dissipation component two, thereby improving the overall heat dissipation performance. By setting up the cooling device in combination with heat dissipation component one, the return water temperature is effectively cooled, ensuring that the circulating water remains at a low temperature during multiple extractions, further improving the heat dissipation effect and ensuring the stable operation of the equipment in high-temperature environments.

[0019] 2. By combining the inclined plate and the diversion plate, the water flow is effectively gathered and divided, ensuring uniform flow of the return water. By combining the temperature sensor and the output component, the internal temperature of the heat dissipation component 2 is monitored in real time, and the semiconductor cooling plate is automatically activated for water cooling when the temperature is too high. By combining the heat dissipation fins with the semiconductor cooling plate, the hot end of the cooling plate is effectively cooled, avoiding a decrease in cooling efficiency. This design not only ensures that the return water can be continuously and effectively cooled in high-temperature environments, but also improves the stability and efficiency of the heat dissipation system.

[0020] 3. By setting up a fan and a flow divider to work together, the cooling air is effectively divided and delivered, ensuring that the upper and lower parts of the inner cavity of the casing are cooled by air at the same time, reducing temperature loss. By setting up a semiconductor cooling plate and a cooling water system to work together, a dual cooling method of water cooling and air cooling is achieved, which effectively improves heat dissipation efficiency and ensures the stable operation of the system. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0023] Figure 3 This is a schematic diagram of the overall structure of the heat dissipation component of the present invention;

[0024] Figure 4 This is a schematic diagram of the overall structure of the aggregation component of the present invention;

[0025] Figure 5 This is a schematic diagram of the overall structure of the output component of the present invention;

[0026] Figure 6 This is a schematic diagram of the reflux shell and the aggregation component of the present invention.

[0027] Figure 7 This is a schematic diagram of the overall structure of the air-cooled component of the present invention;

[0028] Figure 8 This is a schematic diagram of the overall structure of the heat dissipation component two of the present invention;

[0029] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the structure at point A in the diagram;

[0030] Figure 10 This is a cross-sectional view of the cooling shell portion of the present invention;

[0031] Figure 11 This is a cross-sectional view of another part of the cooling shell structure of the present invention;

[0032] Figure 12 This is a cross-sectional view of the internal structure of the cooling shell of the present invention.

[0033] In the diagram: 1. Support column; 2. Heat dissipation component one; 21. Outer shell; 22. Semiconductor cooling plate; 23. Guide plate one; 24. Diverter plate; 25. Gathering component; 251. Connecting block; 252. Inclined plate; 253. Connecting rod; 254. Transmission column; 255. Fan blade; 26. Heat dissipation fins; 3. Output component; 31. Fixing plate; 32. Water pump; 33. Input pipe; 34. Diverter box; 35. Output shell; 36. Return shell; 361. Outer shell two; 362. Pressurizing block; 363. Impeller; 364. Rotating column; 365. Transmission belt; 4. Air-cooled component; 41. Connecting block; 42. 43. Input slot; 44. Return slot; 45. Fixing plate; 46. Fan; 5. Insulating sleeve one; 6. Insulating sleeve two; 7. Heat dissipation assembly two; 71. Cooling shell; 711. Outer shell three; 712. Input slot one; 713. Cooling cavity; 714. Return port; 715. Return cavity; 716. Cooling slot two; 717. Return slot; 718. Drain hole; 72. Connecting plate; 73. Insulating shell; 74. Lead block; 75. Coil; 76. Diverter assembly; 761. Base plate; 762. Conveying shell; 763. Diverter block; 764. Ventilation slot one; 765. Ventilation slot two; 766. Ventilation slot three. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] Example 1, please refer to Figure 1 and Figure 2As shown, a dry-type transformer with protective function includes four pillars 1. The upper ends of the four pillars 1 are all fixedly connected to a heat dissipation component 1 2. The upper end of the heat dissipation component 1 2 is fixedly connected to an output component 3 that cooperates with the heat dissipation component 1 2. The upper end of the output component 3 is fixedly connected to a wind-cooling component 4. The upper end of the wind-cooling component 4 is fixedly connected to a heat dissipation component 2 7. The upper end of the heat dissipation component 2 7 is fixedly connected to a plurality of insulating sleeves 1 5 for realizing electrical connection and insulation protection. The upper end of the heat dissipation component 2 7 is fixedly connected to a plurality of insulating sleeves 2 6.

[0036] In this embodiment, when the transformer of this device is in a high-temperature environment, the internal components of the air-cooling component 4 will perform initial air cooling on the entire heat dissipation component 7. The air inside the air-cooling component 4 absorbs the water temperature and then cools the bottom and top of the inner cavity of the heat dissipation component 7. When the internal temperature of the heat dissipation component 7 exceeds the set threshold, the power source installed inside the output component 3 will start and draw water from the bottom of the inner cavity of the heat dissipation component 2. The water will then be circulated into the inner cavity of the heat dissipation component 7. The water that has circulated inside the heat dissipation component 7 will flow back and enter the bottom of the heat dissipation component 2 through the air-cooling component 4 and the output component 3. The cooling devices fixedly connected to the left and right sides of the heat dissipation component 2 will cool the flowing water, so that when the output component 3 draws water from the inner cavity of the heat dissipation component 2 again, the water temperature can still achieve the heat dissipation effect.

[0037] By coordinating the air-cooling component 4 with the heat dissipation component 7, a preliminary air-cooling effect is achieved, effectively reducing the temperature of the heat dissipation component 7. By coordinating the power source with the output component 3, the water circulation system is activated, enabling effective temperature transfer and regulation between the heat dissipation component 2 and the heat dissipation component 7, thereby improving overall heat dissipation performance. By coordinating the cooling device with the heat dissipation component 2, the return water temperature is effectively cooled, ensuring that the circulating water remains at a low temperature during multiple extractions, further enhancing the heat dissipation effect and ensuring stable operation of the equipment in high-temperature environments.

[0038] Furthermore, to achieve the purpose of cooling the return water in the above embodiments, please refer to... Figure 3 and Figure 4The heat dissipation component 2 includes a housing 21. Semiconductor cooling plates 22 for heat transfer are fixedly connected to the left and right sides of the housing 21. Heat dissipation fins 26 are fixedly connected to the sides of the two semiconductor cooling plates 22 that are far apart from each other. Two flow guide plates 23 for turbulence are fixedly connected to the bottom of the sides of the two semiconductor cooling plates 22 that are close to each other. A flow divider plate 24 for diverting current to the output component 3 is fixedly connected to the middle of the sides of the two semiconductor cooling plates 22 that are close to each other. The upper part of the cold plates 22, which are close to each other, is fixedly connected to a gathering component 25 for cooling the water flow. The gathering component 25 includes four connecting blocks 251. The four connecting blocks 251 are in pairs. The sides of two adjacent connecting blocks 251 are fixedly connected to an inclined plate 252. A connecting rod 253 is also fixedly connected to the bottom of the rear inclined plate 252. A transmission column 254 is rotatably connected to the bottom of the connecting rod 253. A fan blade 255 for cooling the return water is fixedly connected to the front end of the transmission column 254.

[0039] In the specific implementation of this embodiment, the returned water will fall onto the inclined plate 252. Since the two inclined plates 252 are set at an angle, the water flow will be gathered by the two inclined plates 252 and fall onto the surface of the diverter plate 24 and be diverted by the diverter plate 24. Furthermore, during the return of cooling water, since water cooling is required, it indicates that the internal temperature of the heat dissipation component 2 7 is too high. Therefore, the temperature sensor installed inside the heat dissipation component 2 7 will send data signals to the terminal of the duty personnel in real time. After receiving the signal, the terminal will be confirmed by the operator and will send data signals to the power source inside the output component 3 and the two semiconductor cooling plates 22 to start. Therefore, the returned water will be cooled when it passes through the inclined plate 252, the diverter plate 24 and the guide plate 23. The heat dissipation fins 26 on the outside of the heat dissipation fins 26 on the left and right sides will dissipate heat from the hot ends of the two semiconductor cooling plates 22, thereby ensuring that the semiconductor cooling plates 22 can always effectively cool the returned water during the cooling process.

[0040] It should be further noted that the two semiconductor cooling plates 22 mentioned above are conventional technologies in the prior art. In this solution, only their cooling function is utilized. Their working principle and circuit connection will not be elaborated on here.

[0041] The temperature sensors and terminals mentioned above are conventional technologies in the prior art. In this solution, when the temperature of heat dissipation component 2 7 exceeds the set threshold, it will send a data signal to the terminal on duty to prompt the on-duty personnel whether to use water cooling. If the on-duty personnel do not respond within 30 seconds, the terminal will automatically start the two semiconductor cooling plates 22 and the power source inside the output component 3.

[0042] By setting the inclined plate 252 in conjunction with the diversion plate 24, the water flow is effectively gathered and divided, thus ensuring the uniform flow of return water. By setting the temperature sensor in conjunction with the output component 3, the internal temperature of the heat dissipation component 7 is monitored in real time, and the semiconductor cooling plate 22 is automatically activated to perform water cooling when the temperature is too high. By setting the heat dissipation fins 26 in conjunction with the semiconductor cooling plate 22, the hot end of the cooling plate is effectively dissipated, avoiding a decrease in cooling efficiency. This design not only ensures that the return water can be continuously and effectively cooled in high-temperature environments, but also improves the stability and efficiency of the heat dissipation system.

[0043] Example 2, based on Example 1, further realizes the simultaneous transportation of water and preliminary cooling of the return water. For details, please refer to [link / reference needed]. Figure 5 and Figure 6 As shown, the output component 3 includes a fixed plate 31. A water pump 32 for outputting water flow is fixedly connected to the upper end of the fixed plate 31, and an input pipe 33 is fixedly connected to the input end of the water pump 32. A diversion box 34 for diverting water flow is fixedly connected to the output end of the water pump 32 through a connecting pipe. Two symmetrical output shells 35 are fixedly connected to the front and rear sides of the diversion box 34. The two output shells 35 are paired up, and a return shell 36 is fixedly connected to the side closest to each other. The bottom end of the return shell 36 is connected to the front and rear sides of the fixed plate 31. While being fixedly connected to the bottom end of the fixed plate 31, the return shell 36 includes an outer shell 361. A pressurizing block 362 for collecting the returned water is fixedly connected to the inner cavity of the outer shell 361. A rotating column 364 is rotatably connected to the right side of the inner cavity of the outer shell 361. An impeller 363 that cooperates with the water collected by the pressurizing block 362 is fixedly connected to the front side of the outer surface of the rotating column 364. A transmission belt 365 is wound around the rear part of the outer surface of the impeller 363, and the other side of the transmission belt 365 is wound around the transmission column 254.

[0044] In this embodiment, when the returned water flows out from the bottom of the air-cooling component 4, it is first collected by two outer shells 361 installed on the front and rear sides of the fixed plate 31. Since the two outer shells 361 are fixedly connected to pressure blocks 362, the impeller 363 will rotate due to the flow channel narrowing and the effect of gravity. While the impeller 363 is rotating, the impeller 363 and the rotating column 364 are fixedly connected. Therefore, the rotating column 364 will drive the transmission column 254 to rotate through the winding transmission belt 365. During the rotation of the transmission column 254, the fan blade 255 fixedly connected on one side will air-cool the returned water.

[0045] By setting the outer casing 361 to cooperate with the pressure block 362, the effective collection of return water and the narrowing of the flow channel are realized. The impeller 363 is driven to rotate by gravity and flow velocity changes. By setting the rotating column 364 to cooperate with the transmission belt 365, the transmission column 254 is driven to rotate, thereby realizing the air cooling effect of the fan blade 255 on the return water. By combining air cooling and water cooling through mechanical transmission, the heat dissipation effect is enhanced, ensuring that the return water is effectively cooled during the flow process, and improving the efficiency and stability of the overall heat dissipation system.

[0046] Example 3 further elaborates on the combination of air cooling and water cooling based on Examples 1 and 2. For further details, please refer to [link / reference]. Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12As shown, the air-cooled assembly 4 includes a connecting block 2 41. Two symmetrically arranged input slots 42 are formed on both the front and rear sides of the connecting block 2 41. Two symmetrically arranged return slots 43 are formed in the middle of the upper end of the connecting block 2 41. A fixing plate 2 44 is fixedly connected to the inner cavity of the connecting block 2 41, and three fans 45 for conveying cold air are also fixedly connected to the inner cavity of the fixing plate 2 44. The heat dissipation assembly 2 7 includes a cooling shell 71. Two insulating shells 73 are fixedly installed in the inner cavity of the cooling shell 71. Connecting plates 72 for fixing are also installed on the outer surfaces of the two insulating shells 73. The inner cavities of the two insulating shells 73 are each provided with... There are lead blocks 74, and coils 75 are wound around the outer surfaces of both lead blocks 74. A flow-diverting component 76 is provided at the bottom of the cooling shell 71. The flow-diverting component 76 is used to divert the cold air generated by the fan 45. The cooling shell 71 includes an outer shell 711. The outer shell 711 has return grooves 717 on both the front and rear sides for return flow. The outer shell 711 has a cooling cavity 713, a return port 714, a return cavity 715, and a cooling groove 716 on both the front and rear sides. The cooling cavity 713, the return port 714, the return cavity 715, and the cooling groove 716 are arranged in a mirror image on the left and right sides. The cooling cavity 713 has input slots 712 on both the left and right sides, which communicate with the cooling tank 716. The inner cavity of the cooling cavity 713 communicates with the inner cavity of the return cavity 715 through the return port 714. The return cavity 715 and the cooling tank 716 are equipped with heat insulation plates to isolate the temperature difference. Two drainage holes 718 are opened on the upper sides of the two cooling tanks 716 and the two return cavities 715 that are close to each other. The outer shell 711 has drainage holes 718 for return flow in the middle of the front and rear sides. The diversion assembly 76 includes a base plate 761. The bottom of the base plate 761 is fixedly connected to the conveying shell 762. The base plate 761 contains... The cavity is fixedly connected to a diversion block 763 for guiding airflow, and the inner cavity of the diversion block 763 is also provided with a ventilation slot 764 for ventilation. The inner cavity of the bottom plate 761 is provided with a second ventilation slot 765 and a third ventilation slot 766. The second ventilation slot 765 is used to dissipate heat from the upper part of the inner cavity of the cooling shell 71, and the third ventilation slot 766 is used to dissipate heat from the bottom of the inner cavity of the outer shell 711. A temperature sensor is provided at the bottom of the connecting plate 72. When the temperature reaches the set threshold, the water pump 32 will start, and the three fans 45 will stop working, so as to dissipate heat from the inner cavity of the outer shell 711 by water cooling.

[0047] In this embodiment, when the temperature sensor installed at the bottom of the connecting plate 72 exceeds the threshold for the first time, it will first send a data signal to the inspection terminal. The three fans 45 installed in the inner cavity of the fixed plate 2 44 will also start and blow the air generated by themselves into the corresponding inner cavity of the conveying shell 762. Then, the cooling air will be diverted by the diverting block 763, and part of it will enter the inner cavity of the diverting block 763 and then be delivered to the middle of the two insulating shells 73 through the ventilation slot 1 764. The other part of the cooling air will enter through the ventilation slot 2 765 and be delivered to the bottom of the inner cavity of the outer shell 3 711. The air delivered by the fans 45 installed on the left and right sides of the fan 45 will be delivered through the two corresponding ventilation slots 3 766, thereby cooling the upper part of the inner cavity of the outer shell 3 711. Through the two chambers of ventilation slot 3 766 and ventilation slot 2 765, the upper and lower parts of the inner cavity of the outer shell 3 711 can be cooled at the same time. Compared with the traditional method of cooling from the bottom or top, the temperature loss generated during cooling can be reduced.

[0048] Furthermore, if the temperature threshold does not decrease or even increases, the temperature sensor at the bottom of the connecting plate 72 will send a data signal to the inspection terminal again, thereby activating the fixed plate 31. Simultaneously with the activation of the fixed plate 31, the semiconductor cooling plates 22, fixedly connected to the left and right sides of the outer casing 21, will also activate. The fixed plate 31 will then draw water from the bottom of the outer casing 21 through the input pipe 33, which is fixedly connected to the input end. The water is then diverted through the diversion box 34, which is fixedly connected to the output end, causing the cooling water to be output from the four output casings 35 to the bottom of the outer casing 711. After the cooling water reaches the bottom of the outer casing 711, it will be diverted again, with a portion of the water entering the cooling... The cooling water absorbs heat in the cooling cavity 713, and then enters the inner cavity of the return cavity 715 through the return port 714 and flows back from the return tank 717 through the drain hole 718. Another part of the cooling water will enter the inner cavity of the input tank 712 and then be injected into the inner cavity of the cooling tank 716 to cool the upper part of the outer shell 711. After cooling, the cooling water will be combined with the cooling water in the return cavity 715 and then discharged into the inner cavity of the return tank 717 through the drain hole 718. The cooling water in the inner cavity of the return tank 717 will be transported to the inner cavity of the outer shell 361 and discharged into the bottom of the outer shell 21 for cooling, thus circulating again to cool the outer shell 711.

[0049] Furthermore, the three fans 45 mentioned above are conventional technologies in the prior art. In this solution, they are only used for their function of conveying air. Their working principle and wiring connection will not be elaborated on here.

[0050] It should be further noted that the power of the fan 45 installed in the middle of the fixed plate 44 is 2-3 times that of the two fans 45 on the left and right sides.

[0051] By using a temperature sensor in conjunction with a monitoring terminal, the system can automatically identify and trigger the cooling device when the temperature exceeds a preset threshold, effectively preventing overheating. The fan 45, in conjunction with a flow divider 763, achieves precise airflow distribution and delivery, ensuring the cooling airflow evenly covers the upper and lower parts of the inner cavity of the casing, while simultaneously providing air cooling. This significantly reduces temperature loss caused by localized overheating, improving cooling efficiency. Furthermore, by using a semiconductor cooling plate 22 in conjunction with a cooling water system, a dual cooling method combining water and air cooling is achieved, further enhancing heat dissipation and effectively improving the system's heat dissipation efficiency. This ensures the equipment remains stable under prolonged high-load operation, guaranteeing efficient system operation and extending its service life.

[0052] The foregoing has shown and described 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 embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A dry-type transformer with protective function, comprising four supports (1), characterized in that: The upper ends of the four pillars (1) are all fixedly connected to a heat dissipation component one (2), and the upper end of the heat dissipation component one (2) is fixedly connected to an output component (3) that cooperates with the heat dissipation component one (2). The upper end of the output component (3) is fixedly connected to a wind-cooling component (4). The upper end of the wind-cooling component (4) is fixedly connected to a heat dissipation component two (7). The upper end of the heat dissipation component two (7) is fixedly connected to several insulating sleeves one (5) for realizing electrical connection and insulation protection. The upper end of the heat dissipation component two (7) is fixedly connected to several insulating sleeves two (6).

2. A dry-type transformer with protective function according to claim 1, characterized in that: The heat dissipation component 1 (2) includes a housing 1 (21). The housing 1 (21) is fixedly connected to the left and right sides with semiconductor cooling plates (22) for heat conversion. The two semiconductor cooling plates (22) are fixedly connected to each other on the side away from each other with heat dissipation fins (26) for heat dissipation. The bottom of the two semiconductor cooling plates (22) are fixedly connected to each other with two flow guide plates 1 (23) for turbulence. The middle of the two semiconductor cooling plates (22) are fixedly connected to each other with a flow divider plate (24) for diverting the output component (3). The upper part of the two semiconductor cooling plates (22) are fixedly connected to a gathering component (25) for cooling the water flow.

3. A dry-type transformer with protective function according to claim 2, characterized in that: The gathering component (25) includes four connecting blocks (251), which are arranged in pairs. Each pair of adjacent connecting blocks (251) has an inclined plate (252) fixedly connected to one side of each other. A connecting rod (253) is also fixedly connected to the bottom of the inclined plate (252) at the rear. A transmission column (254) is rotatably connected to the bottom of the connecting rod (253). A fan blade (255) for cooling the return water is fixedly connected to the front end of the transmission column (254).

4. A dry-type transformer with protective function according to claim 3, characterized in that: The output component (3) includes a fixed plate (31), and a water pump (32) for outputting water flow is fixedly connected to the upper end of the fixed plate (31). The input end of the water pump (32) is also fixedly connected to an input pipe (33). The output end of the water pump (32) is fixedly connected to a diversion box (34) for diverting water flow through a connecting pipe. Two symmetrical output shells (35) are fixedly connected to the front and rear sides of the diversion box (34). The two output shells (35) are paired up, and a return shell (36) is fixedly connected to the side that is close to each other. The bottom end of the return shell (36) is fixedly connected to the front and rear sides of the fixed plate (31) and communicates with the bottom end of the fixed plate (31).

5. A dry-type transformer with protective function according to claim 4, characterized in that: The return shell (36) includes a second outer shell (361). A pressurizing block (362) for collecting the returned water is fixedly connected to the inner cavity of the second outer shell (361). A rotating column (364) is rotatably connected to the right side of the inner cavity of the second outer shell (361). An impeller (363) that cooperates with the water collected by the pressurizing block (362) is fixedly connected to the front side of the outer surface of the rotating column (364). A transmission belt (365) is wound around the rear part of the outer surface of the impeller (363), and the other side of the transmission belt (365) is wound around the transmission column (254).

6. A dry-type transformer with protective function according to claim 4, characterized in that: The air-cooled component (4) includes a connecting block two (41). The connecting block two (41) has two symmetrically arranged input slots (42) on both the front and rear sides. The connecting block two (41) has two symmetrically arranged return slots (43) in the middle of the upper end. The connecting block two (41) has a fixed plate two (44) fixedly connected to its inner cavity. The fixed plate two (44) also has three fans (45) fixedly connected to its inner cavity for conveying cold air.

7. A dry-type transformer with protective function according to claim 6, characterized in that: The second heat dissipation component (7) includes a cooling shell (71). Two insulating shells (73) are fixedly installed in the inner cavity of the cooling shell (71). A connecting plate (72) for fixing is also installed on the outer surface of the two insulating shells (73). Lead blocks (74) are provided in the inner cavity of the two insulating shells (73), and coils (75) are wound and connected to the outer surface of the two lead blocks (74). A flow diversion component (76) is provided at the bottom of the cooling shell (71). The flow diversion component (76) is used to divert the cold air generated by the fan (45).

8. A dry-type transformer with protective function according to claim 7, characterized in that: The cooling shell (71) includes an outer shell three (711), and the outer shell three (711) has return grooves two (717) for return flow on both the front and rear sides. The outer shell three (711) has a cooling cavity (713), a return port (714), a return cavity (715), and a cooling groove two (716) on both the front and rear sides. The cooling cavity (713), the return port (714), the return cavity (715), and the cooling groove two (716) are arranged in a mirror image on the left and right sides. The cooling cavity (713) has a corresponding cooling groove two (717) on both the left and right sides. The input channel 2 (712) is connected to the cooling channel 2 (716). The inner cavity of the cooling cavity (713) is connected to the inner cavity of the return cavity (715) through the return port (714). The return cavity (715) and the cooling channel 2 (716) are provided with heat insulation plates to isolate the temperature difference. Two drainage holes (718) are opened on the upper side of the two cooling channels 2 (716) and the two return cavities (715) that are close to each other. Drainage holes (718) for return are opened in the middle of the front and rear sides of the outer shell 3 (711).

9. A dry-type transformer with protective function according to claim 8, characterized in that: The diversion assembly (76) includes a base plate (761), a conveying shell (762) is fixedly connected to the bottom of the base plate (761), a diversion block (763) for guiding airflow is fixedly connected to the inner cavity of the base plate (761), and a ventilation slot one (764) for ventilation is also provided in the inner cavity of the diversion block (763). A ventilation slot two (765) and a ventilation slot three (766) are provided in the inner cavity of the base plate (761). The ventilation slot two (765) is used to dissipate heat to the upper part of the inner cavity of the cooling shell (71), and the ventilation slot three (766) is used to dissipate heat to the bottom of the inner cavity of the outer shell three (711).

10. A dry-type transformer with protective function according to claim 7, characterized in that: A temperature sensor is provided at the bottom of the connecting plate (72). When the temperature reaches the set threshold, the water pump (32) will start, and the three fans (45) will stop working to dissipate heat from the inner cavity of the outer shell (711) by water cooling.

Citation Information

Patent Citations

  • Dry-type transformer with protection function

    CN117079947A