Boosting transformer for photovoltaic power generation

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to a step-up transformer for photovoltaic power generation, which comprises a mounting base, a transformer outer box body is arranged at the top of the mounting base, the transformer outer box body comprises a protection box base, a protection box is arranged at the top of the protection box base, and a box door is arranged on the front side of the protection box. A clamp mounting guide groove is formed in the bottom of the protection box base, a transmission groove is formed in one side of the clamp mounting guide groove, a two-way screw is rotatably mounted on the inner side of the transmission groove, a transmission block is slidably mounted on the inner side of the transmission groove and is in threaded connection with the two-way screw, a sliding arm is arranged on one side of the transmission block, and the sliding arm is slidably connected with the clamp mounting guide groove. According to the device, the fixing stability of the transformer in the transportation process can be improved, the situation that the transformer laterally slides and even falls off due to infirm fixing in the turning process is avoided, and the transportation safety is improved.

Description

Technical Field

[0001] This utility model belongs to the field of transformer technology, specifically relating to a step-up transformer for photovoltaic power generation. Background Technology

[0002] Photovoltaic step-up transformers are key equipment in photovoltaic power generation systems. They are used to boost the low AC voltage output by photovoltaic inverters to a high voltage level suitable for grid connection or long-distance transmission. They play an irreplaceable role in photovoltaic power plants. When installed outdoors, integrated box-type transformers are generally used to protect the transformer.

[0003] When transporting box-type transformers, a tractor-trailer is generally used as the transport vehicle. The box-type transformer is placed on the flatbed trailer and secured with ropes, straps, and other fasteners. During transportation, when the vehicle turns, the box-type transformer will exert a certain amount of pressure on the fasteners due to centrifugal force. Relying solely on the fasteners for fixation makes the transformer's stability on the flatbed trailer unreliable, posing a risk of lateral slippage or even falling off. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a step-up transformer for photovoltaic power generation. By using a sliding arm and a lifting clamping arm in conjunction with the limiting position on both sides of the flatbed, the stability of the transformer outer casing during transportation can be improved. This allows transformer outer casings of different widths to be more securely fixed during transportation using a flatbed trailer, preventing lateral slippage or even falling during turns due to insecure fixing, thus improving transportation safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a step-up transformer for photovoltaic power generation, comprising a mounting base, a transformer outer casing placed on top of the mounting base, the transformer outer casing including a protective box base, a protective box on top of the protective box base, a door on the front of the protective box, a clamp mounting guide groove at the bottom of the protective box base, a transmission groove on one side of the clamp mounting guide groove, a bidirectional screw rotatably mounted on the inner side of the transmission groove, a transmission block slidably mounted on the inner side of the transmission groove, and a threaded connection between the transmission block and the bidirectional screw. Next, a sliding arm is provided on one side of the transmission block. The sliding arm is slidably connected to the clamp mounting guide groove. One end of the sliding arm is provided with a guide groove. The inner top wall of the guide groove is rotatably connected to a screw. A hexagonal screw head is connected to the bottom of the screw. A lifting clamping arm is threaded on the outer side of the screw. A transformer mounting mechanism is provided on the top of the protective box base. A step-up transformer body is mounted on the top of the transformer mounting mechanism. A mounting hole is provided through the front of the protective box. A U-shaped heat-conducting ventilation pipe is fixedly installed inside the mounting hole. A heat-conducting fin is welded to the outer side of the U-shaped heat-conducting ventilation pipe. Dustproof nets and fans are provided on the inner sides of both ends of the U-shaped heat-conducting ventilation pipe.

[0006] The beneficial effects of this utility model are as follows: When transporting the transformer outer casing, the distance between the two sets of sliding arms in the same clamp mounting guide groove is adjusted according to the width of the flatbed trailer and the width of the transformer outer casing. During adjustment, a hexagonal wrench is connected to an internal hexagonal connector, and the internal hexagonal connector is rotated, thereby driving the bidirectional screw to rotate. Through the transmission between the bidirectional screw and the transmission block, the two sets of sliding arms located in the same clamp mounting guide groove move in opposite directions, thereby adjusting the distance between the two sets of sliding arms in the same clamp mounting guide groove so that the distance between the two sets of lifting clamp arms is greater than the width of the flatbed. The wrench is then used to rotate the hexagonal screw head, driving the screw to rotate. Through the screw, the lifting clamp arms are driven to descend, so that the distance between the bottom of the sliding arm and the bottom plate of the lifting clamp arm is greater than the thickness of the flatbed. Then, place the protective box base on top of the flatbed. Rotate the hexagonal connector in the reverse direction to drive the two sets of sliding arms closer together, causing the two sets of lifting clamping arms to clamp the flatbed from both sides. Rotate the hexagonal screw head in the reverse direction to drive the lifting clamping arms upwards, allowing them to engage with the sliding arms to clamp the flatbed from both the top and bottom. Tighten the nuts to lock the screw, preventing it from rotating further. Through the coordination of the sliding arms, lifting clamping arms, and the limiting action between the sides of the flatbed, the stability of the transformer outer casing during transportation is improved. This ensures that transformer outer casings of different widths can be more securely fixed during flatbed trailer transportation, preventing lateral slippage or even falling during turns due to insecure fixing, thus improving transportation safety.

[0007] After installation and commissioning, the heat generated during the operation of the step-up transformer is conducted to the air inside the protection box. The heat is absorbed by the large-area contact between the heat-conducting fins and the air inside the protection box, and then conducted to the U-shaped heat-conducting ventilation duct. This device uses two sets of fans to draw external air into the U-shaped heat-conducting ventilation duct from its bottom opening and out from its top opening, creating a circulating flow of outside air. An infrared temperature sensor monitors the temperature inside the protection box in real time and transmits the data to the controller. The controller uses this temperature data to control the fan speed, thereby altering the airflow speed within the U-shaped heat-conducting ventilation duct. The airflow inside the U-shaped heat-conducting ventilation duct absorbs the heat conducted onto the duct. As the airflow exits from the top of the duct, the heat is carried away, thus achieving heat dissipation inside the protective box. Furthermore, because the interior of the U-shaped duct is completely isolated from the interior of the protective box, and the interior of the protective box is also completely isolated from the outside, external dust cannot enter the protective box. Compared to the traditional method of cooling the transformer inside the box using only a fan located on the side of the box, this device prevents dust from covering the transformer and wiring inside the protective box, eliminating the need for subsequent cleaning. It also prevents dust from affecting the heat dissipation efficiency of the transformer and wiring, and from causing short circuits, thus improving operational safety.

[0008] To rotate the bidirectional screw:

[0009] As a further improvement to the above technical solution: both ends of the bidirectional screw are connected to internal hexagonal connectors.

[0010] The beneficial effect of this improvement is that the internal hex socket is used to connect with a hex wrench to rotate the double-ended screw.

[0011] To ensure the stable fixation of the lifting arm position:

[0012] As a further improvement to the above technical solution: a nut is installed on the outer thread of the screw.

[0013] The beneficial effect of this improvement is that after the nut is tightened, the screw can be locked to prevent it from rotating, thereby firmly fixing the position of the lifting arm.

[0014] To improve the installation stability of the protective box base:

[0015] As a further improvement to the above technical solution: the side of the mounting base is provided with a first threaded hole, and the lifting clamp arm is provided with a second threaded hole.

[0016] The beneficial effects of this improvement are: the first threaded hole and the second threaded hole can be fixed by bolt connection, thereby reinforcing the mounting base and the lifting clamp arm and improving the installation stability of the protective box base.

[0017] To facilitate the removal of the step-up transformer body:

[0018] As a further improvement to the above technical solution: the transformer installation mechanism includes a transformer installation slide rail, a slider is slidably installed on the inner side of the transformer installation slide rail, and the top of the slider is fixed to the step-up transformer body.

[0019] The beneficial effects of this improvement are: the step-up transformer body is installed in the transformer mounting rail by a slider, and when it is necessary to remove the step-up transformer body from the protection box, it can be taken out more conveniently by sliding.

[0020] To secure the step-up transformer body:

[0021] As a further improvement to the above technical solution: a locking bolt is threaded through and installed between the top and bottom of the slider.

[0022] The beneficial effect of this improvement is that the locking bolt is used to fix the slider, thereby fixing the step-up transformer body.

[0023] To control the fan speed:

[0024] As a further improvement to the above technical solution: an infrared temperature sensor and a controller are provided on the inside of the protective box.

[0025] The beneficial effects of this improvement are as follows: the infrared temperature sensor is used to monitor the temperature inside the protective box and transmit the temperature data to the controller, which controls the fan speed based on the temperature data inside the box.

[0026] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the right front axonometric structure of this utility model;

[0028] Figure 2 This is a front sectional view of the present invention;

[0029] Figure 3 This is a side sectional view of the present invention;

[0030] Figure 4 This is an isometric view of the mounting base and the protective box base in this utility model;

[0031] Figure 5This is a schematic diagram showing the separation of the mounting base and the protective box base of this utility model;

[0032] Figure 6 This is a cross-sectional structural diagram of the protective box base in this utility model;

[0033] Figure 7 This is a schematic diagram of the bottom structure of the protective box base in this utility model;

[0034] Figure 8 This is a cross-sectional view of the protective box base in this utility model;

[0035] Figure 9 This is a schematic diagram of the structure of the step-up transformer and the transformer mounting rail in this utility model;

[0036] In the diagram: 1. Mounting base; 2. First threaded hole; 3. Protective box base; 4. Protective box; 5. Box door; 6. Fixture mounting guide groove; 7. Transmission groove; 8. Double-acting screw; 9. Hexagonal socket head cap; 10. Transmission block; 11. Sliding arm; 12. Guide groove; 13. Screw; 14. Hexagonal screw head; 15. Nut; 16. Lifting clamp arm; 17. Second threaded hole; 18. Transformer mounting slide rail; 19. Slider; 20. Locking bolt; 21. Step-up transformer body; 22. U-shaped heat-conducting ventilation pipe; 23. Heat-conducting sheet; 24. Dustproof net; 25. Fan; 26. Infrared temperature sensor; 27. Controller. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0038] like Figure 1-9As shown, a step-up transformer for photovoltaic power generation includes a mounting base 1. A transformer outer casing is placed on top of the mounting base 1. The transformer outer casing includes a protective box base 3. A protective box 4 is located on top of the protective box base 3. A door 5 is located on the front of the protective box 4. A clamp mounting guide groove 6 is located at the bottom of the protective box base 3. A transmission groove 7 is located on one side of the clamp mounting guide groove 6. A bidirectional screw 8 is rotatably mounted on the inner side of the transmission groove 7. A transmission block 10 is slidably mounted on the inner side of the transmission groove 7. The transmission block 10 is threadedly connected to the bidirectional screw 8. A sliding arm is located on one side of the transmission block 10. 11. The sliding arm 11 is slidably connected to the clamp mounting guide groove 6. One end of the sliding arm 11 is provided with a guide groove 12. The inner top wall of the guide groove 12 is rotatably connected to the screw 13. The bottom of the screw 13 is connected to a hexagonal screw head 14. The outer side of the screw 13 is threaded with a lifting clamping arm 16. The top of the protective box base 3 is provided with a transformer mounting mechanism. The top of the transformer mounting mechanism is equipped with a step-up transformer body 21. The front of the protective box 4 has a through mounting hole. A U-shaped heat-conducting ventilation pipe 22 is fixedly installed inside the mounting hole. A heat-conducting plate 23 is welded to the outer side of the U-shaped heat-conducting ventilation pipe 22. Dustproof nets 24 are provided on the inner side of both ends of the U-shaped heat-conducting ventilation pipe 22, and fans 25 are installed thereon.

[0039] When transporting the transformer outer casing of this device, the distance between the two sets of sliding arms 11 in the same clamp mounting guide groove 6 is adjusted according to the width of the flatbed trailer and the width of the transformer outer casing. During adjustment, a hex wrench is connected to an internal hex socket joint 9, and rotating the internal hex socket joint 9 drives the double-acting screw 8 to rotate. Through the transmission between the double-acting screw 8 and the transmission block 10, the two sets of sliding arms 11 in the same clamp mounting guide groove 6 move in opposite directions, thereby adjusting the distance between the two sets of lifting clamping arms 16 so that the distance between the two sets of lifting clamping arms 16 is greater than the width of the flatbed. Then, the hex screw head 14 is rotated with a wrench, driving the screw 13 to rotate. The screw 13 drives the lifting clamping arms 16 to descend, so that the distance between the bottom of the sliding arm 11 and the bottom plate of the lifting clamping arm 16 is greater than the thickness of the flatbed. Subsequently... Place the protective box base 3 on top of the flatbed, then rotate the internal hexagonal connector 9 in the reverse direction to drive the two sets of sliding arms 11 to move closer together, so that the two sets of lifting clamping arms 16 move closer together to clamp the flatbed from both sides. Then rotate the hexagonal screw head 14 in the reverse direction to drive the lifting clamping arms 16 to rise, so that the lifting clamping arms 16 cooperate with the sliding arms 11 to clamp the flatbed from both the top and bottom sides. Then tighten the nut 15 to lock the screw 13, so that the screw 13 can no longer rotate. Through the cooperation of the sliding arms 11, the lifting clamping arms 16 and the limiting between the two sides of the flatbed, the stability of the transformer outer casing can be improved during transportation. This allows transformer outer casings of different widths to be more securely fixed during transportation using a flatbed trailer, avoiding lateral slippage or even falling during turns due to insecure fixing, thus improving transportation safety.

[0040] After installation and commissioning, the heat generated during the operation of the step-up transformer body 21 is conducted to the air inside the protection box 4. The heat is absorbed by the large-area contact between the heat-conducting plate 23 and the air inside the protection box 4, and then conducted to the U-shaped heat-conducting ventilation duct 22. This device uses two sets of fans 25 to draw external air into the U-shaped heat-conducting ventilation duct 22 from its bottom opening and out from its top opening, allowing for air circulation within the duct. An infrared temperature sensor 26 monitors the temperature inside the protection box 4 in real time and transmits the data to the controller 27. The controller 27 controls the operating speed of the fans 25 based on the temperature data, thereby altering the airflow within the U-shaped heat-conducting ventilation duct 22. The airflow velocity of the part, through the airflow flowing inside the U-shaped heat-conducting ventilation pipe 22, absorbs the heat conducted to the U-shaped heat-conducting ventilation pipe 22. As the airflow exits from the top opening of the U-shaped heat-conducting ventilation pipe 22, the heat is carried away, thereby achieving heat dissipation inside the protective box 4. At the same time, since the inside of the U-shaped heat-conducting ventilation pipe 22 is completely isolated from the inside of the protective box 4, and the inside of the protective box 4 is also completely isolated from the outside, external dust cannot enter the inside of the protective box 4. Compared with the traditional method of only using a fan set on the side of the box to dissipate heat from the transformer inside the box, this device can avoid dust covering the transformer and wiring inside the protective box 4, eliminating the need for subsequent cleaning work. At the same time, it avoids the impact of dust covering on the heat dissipation efficiency of the transformer and wiring and the occurrence of short circuits, thus improving the safety of use.

[0041] Both ends of the bidirectional screw 8 are connected to the internal hexagonal connector 9.

[0042] The internal hex socket 9 is used to connect to a hex wrench to rotate the double-ended screw 8.

[0043] A nut 15 is threaded onto the outer side of the screw 13.

[0044] After the nut 15 is tightened, the screw 13 can be locked to prevent it from rotating, thereby securing the position of the lifting arm 16.

[0045] The mounting base 1 has a first threaded hole 2 on its side, and the lifting clamp 16 has a second threaded hole 17 through it.

[0046] The first threaded hole 2 and the second threaded hole 17 can be fixed together by bolts, thereby reinforcing the mounting base 1 and the lifting clamp arm 16 and improving the installation stability of the protective box base 3.

[0047] The transformer installation mechanism includes a transformer installation slide rail 18, and a slider 19 is slidably installed on the inner side of the transformer installation slide rail 18. The top of the slider 19 is fixed to the step-up transformer body 21.

[0048] The step-up transformer body 21 is installed in the transformer mounting rail 18 via a slider 19. When it is necessary to remove the step-up transformer body 21 from the protection box 4, it can be easily removed by sliding.

[0049] A locking bolt 20 is threaded through and installed between the top and bottom of the slider 19.

[0050] The locking bolt 20 is used to fix the slider 19, thereby fixing the step-up transformer body 21.

[0051] The inner side of the protective box 4 is equipped with an infrared temperature sensor 26 and a controller 27.

[0052] Infrared temperature sensor 26 is used to monitor the temperature inside the protective box 4 and transmit the temperature data to controller 27. Controller 27 controls the operating speed of fan 25 based on the temperature data inside the box.

[0053] The working principle and usage process of this utility model: When transporting the transformer outer casing, the distance between the two sets of sliding arms 11 in the same clamp mounting guide groove 6 is adjusted according to the width of the flatbed trailer and the width of the transformer outer casing. During adjustment, a hex wrench is connected to an internal hex socket joint 9, and the internal hex socket joint 9 is rotated, thereby driving the bidirectional screw 8 to rotate. Through the transmission between the bidirectional screw 8 and the transmission block 10, the two sets of sliding arms 11 in the same clamp mounting guide groove 6 move in opposite directions, thereby adjusting the distance between the two sets of sliding arms 11 in the same clamp mounting guide groove 6 so that the distance between the two sets of lifting clamp arms 16 is greater than the width of the flatbed. Then, the hex screw head 14 is rotated with a wrench, driving the screw 13 to rotate. Through the screw 13, the lifting clamp arms 16 are driven to descend, so that the distance between the bottom of the sliding arm 11 and the bottom plate of the lifting clamp arm 16 is greater than the thickness of the flatbed. Then, the bottom of the protective box is lowered. When seat 3 is placed on top of the flat plate, the internal hexagonal connector 9 can be rotated in the reverse direction to drive the two sets of sliding arms 11 to move closer together, causing the two sets of lifting clamping arms 16 to move closer together and clamp the flat plate from both sides. Then, the hexagonal screw head 14 is rotated in the reverse direction to drive the lifting clamping arms 16 to rise, allowing the lifting clamping arms 16 to engage with the sliding arms 11 and clamp the flat plate from both the top and bottom. Finally, the nut 15 is tightened to lock the screw 13, preventing it from rotating further. Through the cooperation of the sliding arms 11 and the lifting clamping arms 16 with the limiting action between the sides of the flat plate, the stability of the transformer outer casing during transportation is improved. This ensures that transformer outer casings of different widths can be more securely fixed during transport using a flatbed trailer, preventing lateral slippage or even falling during turns due to insecure fixing, thus improving transportation safety. When installing this device, first, a mounting base 1 is fixed to the ground.The mounting base 1 is made of metal and is fixed to the ground at the installation location by anchor bolts. Following the aforementioned steps, the distance between the lifting clamping arms 16 below the two sets of sliding arms 11 located in the same clamping guide groove 6 is adjusted to be greater than the width of the mounting base 1. Then, the protective box base 3 can be placed above the top plate of the mounting base 1. Subsequently, by rotating the bidirectional screw 8 and the screw 13, the two sets of lifting clamping arms 16 clamp the mounting base 1 from both sides of the top plate of the mounting base 1, and the lifting clamping arms 16 cooperate with the sliding arms 11 to clamp the mounting base 1 from both the top and bottom of the top plate of the mounting base 1, and then tighten... Tighten screw 13, and then use bolts to connect and fix the first threaded hole 2 on the mounting base 1 and the second threaded hole 17 on the lifting clamp 16, completing the installation of the transformer outer casing above the mounting base 1. After installation and commissioning, the heat generated during the operation of the step-up transformer body 21 is conducted to the air inside the protection box 4. The heat is absorbed by the large-area contact between the heat-conducting plate 23 and the air inside the protection box 4, and conducted to the U-shaped heat-conducting ventilation pipe 22. This device uses the operation of two sets of fans 25 to allow external air to enter through the bottom opening of the U-shaped heat-conducting ventilation pipe 22. The air enters the U-shaped heat-conducting ventilation duct 22 and flows out from the top opening of the U-shaped heat-conducting ventilation duct 22, allowing outside air to circulate inside the U-shaped heat-conducting ventilation duct 22. The temperature inside the protective box 4 is monitored in real time by the infrared temperature sensor 26, and the data is transmitted to the controller 27. The controller 27 controls the operating speed of the fan 25 based on the temperature data, thereby changing the airflow speed inside the U-shaped heat-conducting ventilation duct 22. The airflow inside the U-shaped heat-conducting ventilation duct 22 absorbs the heat conducted to it. As the airflow exits from the top opening of the U-shaped heat-conducting ventilation duct 22... Heat is dissipated through the exhaust vent, carrying it away and thus cooling the interior of the protection box 4. Simultaneously, because the interior of the U-shaped heat-conducting ventilation pipe 22 is completely isolated from the interior of the protection box 4, and the interior of the protection box 4 is also completely isolated from the outside environment, external dust cannot enter the interior of the protection box 4. Compared to the traditional method of cooling the transformer inside the box solely through a fan located on the side of the box, this device prevents dust from covering the transformer and wiring inside the protection box 4, eliminating the need for subsequent cleaning. It also prevents dust accumulation from affecting the heat dissipation efficiency of the transformer and wiring, and from causing short circuits, thereby improving operational safety.

[0054] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0055] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A step-up transformer for photovoltaic power generation, characterized in that: The system includes a mounting base (1), on which a transformer outer casing is placed. The transformer outer casing includes a protective box base (3), on which a protective box (4) is located. The protective box (4) has a door (5) on its front. The protective box base (3) has a clamp mounting guide groove (6) at its bottom. A transmission groove (7) is located on one side of the clamp mounting guide groove (6). A bidirectional screw (8) is rotatably mounted on the inner side of the transmission groove (7). A transmission block (10) is slidably mounted on the inner side of the transmission groove (7). The transmission block (10) is threadedly connected to the bidirectional screw (8). A sliding arm (11) is located on one side of the transmission block (10). The sliding arm (11) is slidably connected to the clamp mounting guide groove (6). One end of the sliding arm (11) is provided with a guide groove (12). The inner top wall of the guide groove (12) is rotatably connected to the screw (13). The bottom of the screw (13) is connected with a hexagonal screw head (14). The outer side of the screw (13) is threaded with a lifting clamping arm (16). The top of the protective box base (3) is provided with a transformer mounting mechanism. The top of the transformer mounting mechanism is equipped with a step-up transformer body (21). The front of the protective box (4) has a through mounting hole. The inner side of the mounting hole is fixedly installed with a U-shaped heat-conducting ventilation pipe (22). The outer side of the U-shaped heat-conducting ventilation pipe (22) is welded with a heat-conducting plate (23).

2. The step-up transformer for photovoltaic power generation according to claim 1, characterized in that: Both ends of the bidirectional screw (8) are connected to the internal hexagonal connector (9).

3. The step-up transformer for photovoltaic power generation according to claim 1, characterized in that: The screw (13) is threaded with a nut (15) on its outer side.

4. A step-up transformer for photovoltaic power generation according to claim 1, characterized in that: The mounting base (1) has a first threaded hole (2) on its side, and the lifting arm (16) has a second threaded hole (17) through it.

5. A step-up transformer for photovoltaic power generation according to claim 1, characterized in that: The transformer installation mechanism includes a transformer installation slide rail (18), and a slider (19) is slidably installed on the inner side of the transformer installation slide rail (18). The top of the slider (19) is fixed to the step-up transformer body (21).

6. A step-up transformer for photovoltaic power generation according to claim 5, characterized in that: A locking bolt (20) is threaded through and installed between the top and bottom of the slider (19).

7. A step-up transformer for photovoltaic power generation according to claim 1, characterized in that: The inner side of the protective box (4) is equipped with an infrared temperature sensor (26) and a controller (27).

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