Real-time temperature monitoring and self-adjusting photovoltaic intelligent transformer

Abstract

The invention relates to the technical field of transformers, and discloses a real-time temperature monitoring and self-adjusting photovoltaic intelligent transformer. The air blowing guide plate is arranged, when the temperature sensor recognizes that the temperature of the device exceeds a specified value, the cooling fan is controlled to be close to the fins, and meanwhile, the inclination angle of the air blowing guide plate is changed, so that cooling air generated by the cooling fan can be blown to the fins, one-time acceleration is formed, and meanwhile, the movable fins start to rotate; the generated opening is used for receiving accelerated cooling air generated by the cooling fan and conducting extrusion acceleration on the cooling air again, the cooling effect of the cooling fan on the fins is enhanced through secondary acceleration of the cooling air and the gathering air channel, and in the fin rotating process, the angle generated between the cooling air and the fins changes in real time, so that the cooling effect of the fins is improved. And dirt on the fins can be effectively removed through impact at different angles, and the cleaning effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, and in particular to a photovoltaic smart transformer with real-time temperature monitoring and self-regulation. Background Technology

[0002] A transformer is a power device that uses the principle of electromagnetic induction to convert alternating current from one voltage level to another through electromagnetic coupling between the iron core and the primary and secondary windings, while maintaining a constant frequency. It is widely used in photovoltaic power plants, power grid transmission, industrial production and other scenarios. Its core function is to achieve efficient transmission, distribution and adaptation of power to meet the needs of electrical equipment, and to ensure the stable operation of the power system.

[0003] Chinese Patent Publication No. CN216597212U discloses a transformer with real-time temperature monitoring, comprising a base plate and a retaining sleeve. A transformer body is positioned above the center of the base plate, and connecting rods are installed on the outer walls of the left and right sides of the transformer body. Connecting plates are housed inside the connecting rods, and mounting openings are formed on the surfaces of the connecting plates. A mounting frame is positioned at the front end of the mounting opening, and a cooling fan is installed inside the mounting frame. A retaining ring is mounted on the outer side of the connecting rod, and a wire loop is positioned at the outer end of the retaining ring. A connector is located at the upper end of the transformer body, and upright plates are located on the left and right sides of the upper end of the transformer body. This transformer with real-time temperature monitoring employs a limiting structure to restrict the device from the ground, preventing shaking during operation. It also features a wire harness structure to limit excess wires, effectively preventing tangling, and a heat dissipation structure to accelerate heat dissipation and ensure a stable working environment.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: When existing photovoltaic smart transformers are in use, the internal temperature of the device is monitored in real time by a temperature sensor to control the operation of the heat sink and ensure the heat dissipation effect of the device during operation. However, when the temperature of the transformer is continuously too high, the heat dissipation effect of the heat sink is limited, which may damage the internal components of the transformer and affect the normal operation of the device. Summary of the Invention

[0005] The technical problem to be solved by this invention is that the existing technology has the disadvantage of the transformer temperature being too high, which leads to damage to the internal components of the transformer. To address this, we propose a photovoltaic smart transformer with real-time temperature monitoring and self-adjustment.

[0006] To achieve the above objectives, this application adopts the following technical solution: a photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment, comprising: a photovoltaic intelligent transformer body; a temperature sensor fixedly connected to the top of the photovoltaic intelligent transformer body; a driving device fixedly connected to the side of the temperature sensor; a protective cover fixedly connected to the outer wall of the driving device; a cooling fan fixedly connected to the output end of the driving device; a horizontal slide rail slidably connected inside the cooling fan; a first fixing plate fixedly connected to the side of the horizontal slide rail; a telescopic outer shell fixedly connected to the top of the cooling fan; and a telescopic inner rod slidably connected inside the telescopic outer shell. The telescopic inner rod is internally slidably connected to an inclined slide rail. A second fixed plate is fixedly connected to the side of the inclined slide rail. A sliding ball is fixedly connected to the top of the telescopic inner rod. A sliding groove is slidably connected to the top of the sliding ball. The sliding groove is opened inside the air blowing guide plate. A guide plate rotating shaft is fixedly connected to one side of the air blowing guide plate. A device rack is fixedly connected to the other side of the air blowing guide plate. A first gear meshes with the outer wall of the device rack. A gear rotating rod is fixedly connected to the side of the first gear. A second gear meshes with the bottom of the first gear. A movable fin is fixedly connected to the side of the second gear. A fixed fin is provided at the bottom of the movable fin.

[0007] Preferably, the drive device is located on the horizontal central axis of the protective cover, and the protective cover is fixedly connected to the photovoltaic smart transformer body.

[0008] Preferably, a pair of horizontal slide rails are symmetrically arranged about the vertical centerline of the first fixing plate, and the first fixing plate is fixedly connected to the photovoltaic smart transformer body.

[0009] Preferably, a pair of inclined slide rails are symmetrically arranged about the vertical central axis of the second fixing plate, and the second fixing plate is fixedly connected to the photovoltaic smart transformer body.

[0010] Preferably, the diameter of the sliding ball is the same as the diameter of the sliding groove, and a pair of sliding grooves are symmetrically arranged about the vertical central axis of the air blowing guide plate.

[0011] Preferably, the guide plate shaft is rotatably connected to the photovoltaic smart transformer body, and a pair of guide plate shafts are symmetrically arranged about the horizontal central axis of the cooling fan.

[0012] Preferably, the gear rotating rod is rotatably connected to the photovoltaic smart transformer body, and the size of the first gear is the same as that of the second gear.

[0013] Preferably, the movable fins are rotatably connected to the photovoltaic smart transformer body, and a pair of movable fins are symmetrically arranged about the horizontal central axis of the fixed fins.

[0014] Preferably, the fixed fins are fixedly connected to the photovoltaic smart transformer body, and the fixed fins are located on the horizontal central axis of the cooling fan.

[0015] Preferably, a device spring is fixedly connected to the top of the air guide plate, and a spring fixing plate is fixedly connected to the top of the device spring. The spring fixing plate is fixedly connected to the photovoltaic smart transformer body.

[0016] The technical effects and advantages of this invention are as follows: In this invention, an air guide plate is provided. When the temperature sensor detects that the device temperature exceeds a specified value, the cooling fan is controlled to approach the fins, and the tilt angle of the air guide plate is changed so that the cooling air generated by the cooling fan can be blown towards the fins, forming an initial acceleration. At the same time, the movable fins begin to rotate, and the openings generated are used to receive the accelerated cooling air generated by the cooling fan, and to further compress and accelerate the cooling air. Through the secondary acceleration of the cooling air and the gathering air channel, the heat dissipation effect of the cooling fan on the fins is enhanced. During the rotation of the fins, the angle between the cooling air and the fins changes in real time. Through the impact at different angles, dirt on the fins can be effectively removed, achieving a cleaning effect. Attached Figure Description

[0017] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a front view schematic diagram of the photovoltaic smart transformer with real-time temperature monitoring and self-adjustment according to the present invention. Figure 2 This is a schematic diagram of the internal structure of the photovoltaic smart transformer with real-time temperature monitoring and self-regulation according to the present invention. Figure 3 This is a schematic diagram of the internal structure of the photovoltaic smart transformer with real-time temperature monitoring and self-adjustment according to the present invention during operation. Figure 4 This is an enlarged structural schematic diagram of the air blowing guide plate part of the present invention; Figure 5 This is an enlarged structural schematic diagram of the driving device part of the present invention; Figure 6 This is an enlarged structural schematic diagram of the cooling fan section of the present invention; Figure 7 This is an enlarged structural schematic diagram of the inclined slide rail portion of the present invention; Figure 8 This is an enlarged structural schematic diagram of the sliding ball part of the present invention; Figure 9 This is an enlarged structural schematic diagram of the first gear part of the present invention.

[0018] Legend: 1. Photovoltaic intelligent transformer body; 2. Temperature sensor; 3. Drive device; 4. Protective cover; 5. Cooling fan; 6. Horizontal slide rail; 7. Fixing plate No. 1; 8. Telescopic outer shell; 9. Telescopic inner rod; 10. Inclined slide rail; 11. Fixing plate No. 2; 12. Sliding ball; 13. Sliding groove; 14. Air guide plate; 15. Guide plate shaft; 16. Device rack; 17. Gear No. 1; 18. Gear rotating rod; 19. Gear No. 2; 20. Movable fin; 21. Fixed fin; 22. Device spring; 23. Spring fixing plate. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0020] According to one embodiment of the present invention, Figures 1 to 9 As shown.

[0021] In existing photovoltaic smart transformers, to ensure the temperature stability of core components, temperature sensors are typically precisely deployed at key heat-generating areas of the transformer body. These sensors can capture internal temperature changes in real time and transmit the data to the main control system. The main control system dynamically adjusts the operation of the matching finned heat sink based on the temperature signal. However, in extreme scenarios, when the transformer temperature remains excessively high, the limited heat dissipation effect of the heat sink may damage the internal components of the transformer, affecting the normal operation of the device. Damage to the internal components of the transformer will affect the lifespan of the device and increase the risk of its use. To solve this problem, this invention incorporates the following design in a photovoltaic smart transformer with real-time temperature monitoring and self-adjustment: A real-time temperature monitoring and self-regulating photovoltaic smart transformer includes: a photovoltaic smart transformer body 1, which is the core power conversion carrier in a photovoltaic power station, integrating the iron core, primary and secondary windings, and insulating cooling medium to achieve low-voltage to high-voltage photovoltaic power conversion, and deploying monitoring sensors in key parts to support intelligent control; a temperature sensor 2 is fixedly connected to the top of the photovoltaic smart transformer body 1, which is a device that can detect temperature changes in the environment or equipment and convert them into readable electrical or mechanical signals to provide data support for temperature monitoring and automatic control; and a drive device 3 is fixedly connected to the side of the temperature sensor 2, which is a device that can convert electrical signals into mechanical signals. The device converts energy such as mechanical energy into power to drive the cooling fan 5 to operate as needed. It is the core power source for realizing the automatic operation of the mechanical structure. A protective cover 4 is fixedly connected to the outer wall of the drive device 3. The protective cover 4 is used to restrict the airflow and reduce air dispersion. The cooling fan 5 is fixedly connected to the output end of the drive device 3. The cooling fan 5 is an active heat dissipation component that uses a motor to drive the fan blades to rotate, accelerate airflow to enhance convective heat transfer, and help equipment such as finned radiators to quickly remove heat and achieve cooling. A horizontal slide rail 6 is slidably connected inside the cooling fan 5. A first fixing plate 7 is fixedly connected to the side of the horizontal slide rail 6. A telescopic shell 8 is fixedly connected to the top of the cooling fan 5. The telescopic inner rod 9 is slidably connected inside the retractable outer shell 8. An inclined slide rail 10 is slidably connected inside the telescopic inner rod 9. A second fixing plate 11 is fixedly connected to the side of the inclined slide rail 10. A sliding ball 12 is fixedly connected to the top of the telescopic inner rod 9. A sliding groove 13 is slidably connected to the top of the sliding ball 12. The sliding groove 13 is located inside the air guide plate 14. A guide plate shaft 15 is fixedly connected to one side of the air guide plate 14. A device rack 16 is fixedly connected to the other side of the air guide plate 14. A first gear 17 meshes with the outer wall of the device rack 16. A gear rotating rod 18 is fixedly connected to the side of the first gear 17. A second gear 19 meshes with the bottom of the first gear 17. The wheel 19 is fixedly connected to a movable fin 20 on its side. A fixed fin 21 is provided at the bottom of the movable fin 20. Both the movable fin 20 and the fixed fin 21 are fins of a finned radiator. A finned radiator is a high-efficiency heat exchange device that enhances heat transfer by expanding the surface. Its core structure consists of a base tube and fins. The fins are tightly fixed to the surface of the base tube by mechanical winding, welding or hydraulic expansion, so that the heat dissipation area is higher than that of ordinary tubes. In the field of transformer technology, when working, the heat medium flows in the base tube, and the heat is conducted to the fins through the tube wall. Then, the fin surface exchanges heat with the surrounding air or cooling medium through convection. At the same time, the shape of the fins can destroy the airflow boundary layer, further enhancing the heat transfer efficiency.

[0022] The drive unit 3 is located on the horizontal central axis of the protective cover 4. The protective cover 4 is fixedly connected to the photovoltaic intelligent transformer body 1. A pair of horizontal slide rails 6 are symmetrically arranged about the vertical central axis of the first fixing plate 7. The first fixing plate 7 is fixedly connected to the photovoltaic intelligent transformer body 1. A pair of inclined slide rails 10 are symmetrically arranged about the vertical central axis of the second fixing plate 11. The second fixing plate 11 is fixedly connected to the photovoltaic intelligent transformer body 1. The diameter of the sliding ball 12 is the same as the diameter of the sliding groove 13. A pair of sliding grooves 13 are symmetrically arranged about the vertical central axis of the air blowing guide plate 14. The guide plate rotating shaft 15 is rotatably connected to the photovoltaic intelligent transformer body 1. The guide plate rotating shaft 15 is about the heat dissipation A pair of gears are symmetrically arranged along the horizontal central axis of the fan 5. The gear rotating rod 18 is rotatably connected to the photovoltaic intelligent transformer body 1. The size of the first gear 17 is the same as that of the second gear 19. The movable fins 20 are rotatably connected to the photovoltaic intelligent transformer body 1. A pair of movable fins 20 are symmetrically arranged about the horizontal central axis of the fixed fins 21. The fixed fins 21 are fixedly connected to the photovoltaic intelligent transformer body 1. The fixed fins 21 are located on the horizontal central axis of the cooling fan 5. A device spring 22 is fixedly connected to the top of the air blowing guide plate 14. A spring fixing plate 23 is fixedly connected to the top of the device spring 22. The spring fixing plate 23 is fixedly connected to the photovoltaic intelligent transformer body 1.

[0023] Most existing photovoltaic smart transformers are installed outdoors. Dust and dirt adhering to their surfaces and key components can have negative impacts. This not only clogs the gaps between the finned heat sink fins and the air inlet of the cooling fan, forming a heat insulation layer on the fin surface that reduces heat dissipation efficiency, leading to increased internal temperature, accelerated insulation aging, and high-temperature shutdown, but also, in humid weather, allows dust containing impurities to form conductive paths on the insulating bushings and outer coating, reducing insulation resistance and causing creepage or even insulation breakdown. Furthermore, dust covering temperature and other monitoring sensors can interfere with data accuracy, leading to misjudgments and adjustments by the main control system. In addition, if dust enters the transformer body, it can contaminate the insulating oil, damage the core winding insulation, shorten component lifespan, and ultimately, may cause fires, explosions, and other safety accidents due to heat dissipation failure and insulation faults, seriously threatening the stable operation of the equipment. To solve this problem, this invention incorporates the following design in a photovoltaic smart transformer with real-time temperature monitoring and self-adjustment: The photovoltaic intelligent transformer body 1 is equipped with a finned heat sink. A finned heat sink is a heat exchange device that significantly improves heat dissipation efficiency by adding fins to the surface of a base tube. Its core design concept is to achieve rapid and efficient heat transfer by expanding the heat dissipation area and optimizing the airflow path. The finned heat sink is used to transfer the internal temperature of the photovoltaic intelligent transformer body 1 to the outside. During use, the temperature sensor 2 monitors the internal temperature of the photovoltaic intelligent transformer body 1 in real time. When the temperature sensor 2 detects that the internal temperature of the photovoltaic intelligent transformer body 1 has reached a specified value, it transmits a signal to the drive device 3. The drive device 3 drives the cooling fan 5 to move horizontally. At this time, the cooling fan 5 slides on the horizontal slide rail 6, while the telescopic inner rod 9 slides on the inclined slide rail 10. Because the inclined slide rail 10 is inclined... With the fan 5 set at an angle, during the horizontal movement of the cooling fan 5, the telescopic inner rod 9 slides into the inclined slide rail 10, and the sliding ball 12 slides into the sliding groove 13. At this time, under the traction of the sliding ball 12, the air guide plate 14 rotates counterclockwise around the guide plate shaft 15. At this time, the device spring 22 begins to stretch. Accompanying the movement of the air guide plate 14, the device rack 16 begins to move. The device rack 16 drives the first gear 17 to rotate clockwise, and the first gear 17 drives the second gear 19 and the movable fins 20 to rotate counterclockwise. At this time, the wind force generated by the cooling fan 5 is gathered under the action of the air guide plate 14 to form a fast and directional cooling wind. At the same time, the opening formed by the movable fins 20 and the fixed fins 21 is used to receive the directional cooling wind, and the cooling wind is compressed and accelerated again to quickly cool the movable fins 20 and the fixed fins 21.

[0024] A blower guide plate 14 is provided. When the temperature sensor 2 detects that the device temperature exceeds a specified value, the cooling fan 5 is brought closer to the fins, and the tilt angle of the blower guide plate 14 is changed. This allows the cooling air generated by the cooling fan 5 to be blown onto the fins, creating a primary acceleration. Simultaneously, the movable fins 20 begin to rotate, creating openings to receive the accelerated cooling air generated by the cooling fan 5 and further compressing and accelerating it. This secondary acceleration and concentrating of the cooling air enhances the cooling effect of the cooling fan on the fins. During the fin rotation, the angle between the cooling air and the fins changes in real time. The impact at different angles effectively removes dirt from the fins, achieving a cleaning effect. 4. The coordinated operation of the cooling fan 5 and the movable fins 20, the air guide plate 14 guides the cooling air to achieve primary acceleration, and the funnel-shaped opening of the movable fins 20 completes secondary acceleration. Combined with the air-gathering duct to lock the airflow, the cooling air acts fully on the fins in a high-speed directional state, which greatly improves the heat dissipation efficiency of the photovoltaic smart transformer under high load, breaks through the heat dissipation bottleneck of extreme high temperature, and can also automatically remove sand, debris and other dirt from the surface and gaps of the fins during outdoor operation through the dynamic angle impact of the cooling air and the fins during the fin rotation, achieving the functions of heat dissipation and cleaning. This not only avoids the accumulation of dust weakening the heat dissipation effect, but also reduces the maintenance cost and safety risks of manual dust cleaning, and ultimately ensures the long-term stable operation of the transformer under complex outdoor conditions and reduces the probability of high temperature shutdown.

[0025] The protective cover 4 not only guides the airflow through the duct but also protects the cooling fan 5. The airflow guidance reduces the diffusion of cooling air blown by the cooling fan 5, directing the airflow more concentrated towards the fin area. Combined with the acceleration structure formed by the airflow guide plate 14 and the movable fins 20, this further improves airflow utilization, enhances the convective heat transfer effect of the high-speed cooling air on the fins, and avoids heat dissipation waste caused by airflow dispersion. This helps overcome the bottleneck of heat dissipation at extreme high temperatures. The protective function effectively isolates outdoor dust, fallen leaves, insects, and other foreign objects, preventing them from entering the cooling fan 5 and causing blade jamming or motor blockage. It also prevents rainwater from directly washing the fan motor and causing short circuits. Simultaneously, it slows down the aging and erosion of the fan insulation layer and blade materials by harsh environments such as ultraviolet radiation and high / low temperatures, reducing the probability of fan failure. Furthermore, it avoids mechanical damage to the fan from accidental outdoor collisions, extending the fan's service life and reducing the risk of heat dissipation failure due to fan damage. Ultimately, this reduces maintenance frequency and costs, ensures long-term stable operation of the cooling system, and indirectly supports the transformer's continuous and reliable operation in complex outdoor environments.

[0026] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment, characterized in that, include: The photovoltaic intelligent transformer body has a temperature sensor fixedly connected to its top, a drive device fixedly connected to the side of the temperature sensor, a protective cover fixedly connected to the outer wall of the drive device, a cooling fan fixedly connected to the output end of the drive device, a horizontal slide rail slidably connected inside the cooling fan, a fixing plate fixedly connected to the side of the horizontal slide rail, a telescopic outer shell fixedly connected to the top of the cooling fan, a telescopic inner rod slidably connected inside the telescopic outer shell, and an inclined slide rail slidably connected inside the telescopic inner rod. A second fixing plate is fixedly connected to the side. A sliding ball is fixedly connected to the top of the telescopic inner rod. A sliding groove is slidably connected to the top of the sliding ball. The sliding groove is opened inside the air blowing guide plate. A guide plate rotating shaft is fixedly connected to one side of the air blowing guide plate. A device rack is fixedly connected to the other side of the air blowing guide plate. A first gear meshes with the outer wall of the device rack. A gear rotating rod is fixedly connected to the side of the first gear. A second gear meshes with the bottom of the first gear. A movable fin is fixedly connected to the side of the second gear. A fixed fin is provided at the bottom of the movable fin.

2. The photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment according to claim 1, characterized in that: The drive device is located on the horizontal central axis of the protective cover, and the protective cover is fixedly connected to the photovoltaic smart transformer body.

3. The photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment according to claim 1, characterized in that: A pair of horizontal slide rails are symmetrically arranged about the vertical center axis of the first fixing plate, and the first fixing plate is fixedly connected to the photovoltaic smart transformer body.

4. The photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment according to claim 1, characterized in that: A pair of inclined slide rails are symmetrically arranged about the vertical central axis of the second fixing plate, and the second fixing plate is fixedly connected to the photovoltaic smart transformer body.

5. The photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment according to claim 1, characterized in that: The diameter of the sliding ball is the same as the diameter of the sliding groove, and a pair of sliding grooves are symmetrically arranged about the vertical central axis of the air blowing guide plate.

6. The photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment according to claim 1, characterized in that: The guide plate shaft is rotatably connected to the photovoltaic smart transformer body, and a pair of guide plate shafts are symmetrically arranged about the horizontal central axis of the cooling fan.

7. The photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment according to claim 1, characterized in that: The gear rotating rod is rotatably connected to the photovoltaic smart transformer body, and the size of the first gear is the same as that of the second gear.

8. The photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment according to claim 1, characterized in that: The movable fins are rotatably connected to the photovoltaic smart transformer body, and a pair of movable fins are symmetrically arranged about the horizontal central axis of the fixed fins.

9. The photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment according to claim 1, characterized in that: The fixed fins are fixedly connected to the photovoltaic smart transformer body, and the fixed fins are located on the horizontal central axis of the cooling fan.

10. The photovoltaic intelligent transformer with real-time temperature monitoring and self-adjustment according to claim 1, characterized in that: A device spring is fixedly connected to the top of the air blowing guide plate, and a spring fixing plate is fixedly connected to the top of the device spring. The spring fixing plate is fixedly connected to the photovoltaic smart transformer body.

Images