A photovoltaic isolation transformer with a protective structure

Abstract

The present invention discloses a photovoltaic isolation transformer with a protective structure, which belongs to the field of photovoltaic isolation transformers; it comprises a photovoltaic isolation transformer main body, a groove plate is installed at the upper end of the photovoltaic isolation transformer main body, and the interior of the groove plate is respectively connected to a protective mechanism 1 and a protective mechanism 2; the protective mechanism 1 comprises a strip groove vertically opened on the inner side wall of the groove plate, and a vertical fixing rod 1 is fixedly connected between the two end walls of the strip groove, and a spring 1 is provided on the outer periphery of the vertical fixing rod 1. The present invention effectively prevents the rotating plate from accidentally rotating when it does not need to rotate by arranging an anti-rotation component, thereby avoiding the safety hazard caused by the movement of the rotating plate; at the same time, the design of the buffer component 1 and the buffer component 2 provides a good buffering effect for components such as a sliding plate, reduces the damage to the transformer body due to external impact or vibration, and significantly improves the overall safety protection performance.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic isolation transformers, and in particular to a photovoltaic isolation transformer with a protective structure. Background Art

[0002] In the field of existing photovoltaic isolation transformer technology, the continued growth in global demand for renewable energy has led to an unprecedented expansion in the use of solar photovoltaic power generation systems. This trend places increasingly stringent demands on the safety, stability, and durability of photovoltaic isolation transformers and their associated components. However, conventional photovoltaic isolation transformers currently on the market have exposed a series of significant issues during their design and actual use.

[0003] First, the design of traditional photovoltaic isolation transformers often overlooks effective anti-rotation measures for the rotating plate, resulting in uncontrolled rotation of the rotating plate under the influence of external environmental factors (such as wind and vibration). This unexpected rotation may not only directly damage the internal structure of the transformer, but may also pose a threat to the surrounding environment and personnel safety due to collisions with surrounding objects during rotation. In addition, the transformer's lack of adaptability to extreme climatic conditions (such as high temperatures and strong winds) also limits the transformer's ability to operate stably under these conditions, increasing the risk of failure.

[0004] Secondly, the traditional photovoltaic isolation transformer has a complex design for the fixing and release mechanism of the rotating plate, often requiring operators to master tedious procedures or use specialized tools. This not only increases the difficulty of operation but also prolongs maintenance work. More critically, the lack of intuitive reset instructions and convenient automatic reset functions makes it easy for operators to fail to properly return the rotating plate due to human negligence during operation, which in turn leads to subsequent maintenance problems and increases the complexity and cost of overall maintenance.

[0005] Finally, the structural design of traditional photovoltaic isolation transformers often fails to fully consider the precision of component fit and the long-term stability requirements. This leads to loosening and wear between components during the transformer's operating life, affecting overall operational efficiency and lifespan. Furthermore, their ability to withstand external impact forces is insufficient, especially under harsh operating conditions. The lack of sufficient buffering mechanisms to protect the transformer from damage limits their widespread application and long-term reliability in complex environments. To address this, we offer a new sootblower positive pressure wall box sealing device. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems mentioned in the background technology and to propose a photovoltaic isolation transformer with a protective structure.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A photovoltaic isolation transformer with a protective structure, comprising a photovoltaic isolation transformer body, a groove plate installed at the upper end of the photovoltaic isolation transformer body, and a first protective mechanism and a second protective mechanism connected to the interior of the groove plate respectively;

[0009] The protective mechanism includes a strip groove vertically opened on the inner wall of the groove plate, a vertical fixing rod is fixedly connected between the two end walls of the strip groove, a spring is provided on the outer periphery of the vertical fixing rod, a sliding sleeve block is slidably sleeved on the outer periphery of the vertical fixing rod, and the sliding sleeve block is slidably connected at the inner wall of the strip groove, and a protective plate is fixedly connected between the four sliding sleeve blocks, and the protective plate is slidably connected to the inner wall of the groove plate, which is used to provide anti-collision protection for the upper end of the photovoltaic isolation transformer body in the later stage;

[0010] The cam is fixedly provided with a sliding plate, and the sliding plate is fixedly provided with a sliding plate and a plurality of sliding plates are connected to the sliding plate.

[0011] Preferably, the anti-rotation component includes a U-shaped groove plate fixedly mounted on the main body of the photovoltaic isolation transformer, and strip guide grooves are vertically opened on both sides of the U-shaped groove plate, and a sliding sleeve block three is slidably connected to the inner wall of the strip guide groove, and a rotary support rod is rotatably connected between the two sliding sleeve blocks three through a rotating shaft, and a limit block for clamping the rotating plate and preventing it from rotating is fixedly connected to the end of the rotary support rod, and a reset structure is connected between the strip guide groove and the sliding sleeve block three.

[0012] Preferably, the buffer component 1 includes a strip-shaped receiving groove opened on the inner wall of the rectangular groove, a transverse fixing rod is fixedly connected between the two end walls of the strip-shaped receiving groove, the outer sleeve of the transverse fixing rod is provided with a spring 2, the outer sliding sleeve of the transverse fixing rod is connected with a sliding sleeve block 2, and the sliding sleeve block 2 is slidably connected at the inner wall of the strip-shaped receiving groove, and the two ends of the sliding plate are fixedly connected to the two sliding sleeve blocks 2.

[0013] Preferably, the buffer component 2 includes a telescopic rod fixedly connected between the two sliding plates, the outer sleeve of the telescopic rod is provided with a spring 3, and the two ends of the spring 3 are respectively fixedly connected to the opposite surfaces of the two sliding plates.

[0014] Preferably, the reset structure includes a second vertical fixing rod fixedly connected between the two end walls of the strip guide slot, a fourth spring is provided on the outer periphery of the second vertical fixing rod, and the third sliding sleeve is slidably sleeved on the outer periphery of the second vertical fixing rod.

[0015] Preferably, a limiting through hole is opened on the surface of the rotating plate, and the upper end surface of the protective plate is fixedly connected to the limiting plug, and the limiting plug is inserted into the inner wall of the limiting through hole to prevent the rotating plate from continuing to slide through the strip slide groove and the sliding column after the rotating plate is completed.

[0016] Preferably, the upper end of the spring 1 is fixedly connected to the lower end surface of the sliding sleeve 1, and the lower end of the spring 1 is fixedly connected to the end wall of the strip groove.

[0017] Preferably, one end of the second spring is fixedly connected to one end surface of the second sliding sleeve, and the other end of the second spring is fixedly connected to the end wall of the strip-shaped placement groove.

[0018] Preferably, the upper end of the spring four is fixedly connected to the lower end surface of the sliding sleeve three, and the lower end of the spring four is fixedly connected to the end wall of the strip-shaped guide groove.

[0019] Preferably, the inner diameter of the limiting through hole is matched with the designed outer diameter of the limiting plug post, so as to improve the stability of the limiting plug post after it is inserted.

[0020] Compared with the prior art, the present invention has the following beneficial effects due to the use of the above technical solutions:

[0021] 1. This safety guardrail for substation inspection and maintenance effectively prevents the rotating plate from accidentally rotating when it does not need to rotate by setting anti-rotation components, thereby avoiding safety hazards caused by the movement of the rotating plate; at the same time, the design of buffer components 1 and 2 provides a good buffering effect for components such as the sliding plate, reducing damage to the transformer body due to external impact or vibration, and significantly improving the overall safety protection performance.

[0022] 2. The safety guardrail used for substation inspection and maintenance has a reset structure design of the anti-rotation component, which allows users to easily fix or release the fixed state of the rotating plate when needed, without the need for complicated operating steps or tools, thereby improving the convenience of use; in addition, the linkage structure between the rotating plate and the guard plate enables the rotating plate to be automatically fixed after storage, avoiding the problem of sliding due to negligence and simplifying the maintenance process.

[0023] 3. This safety guardrail used for substation inspection and maintenance effectively disperses the impact of external impact on the transformer body by adopting design methods such as sliding connection and elastic buffering, thereby extending the service life of the equipment. At the same time, the close coordination and precise positioning of various components ensure the stability and reliability of the entire protective structure, which can maintain good working condition even under harsh working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural stereogram of a photovoltaic isolation transformer with a protective structure proposed by the present invention;

[0025] Figure 2 This is a structural diagram of a photovoltaic isolation transformer with a protective structure proposed by the present invention, in which the second protective mechanism is accommodated in a groove plate;

[0026] Figure 3 This is a schematic structural diagram of a photovoltaic isolation transformer groove plate with a protective structure proposed by the present invention;

[0027] Figure 4 This is a structural schematic diagram of the protective mechanism 2 of a photovoltaic isolation transformer with a protective structure proposed by the present invention after the protective plate 2 is detached;

[0028] Figure 5 A photovoltaic isolation transformer with a protective structure proposed by the present invention Figure 3 A magnified view of the structure at point A;

[0029] Figure 6 A photovoltaic isolation transformer with a protective structure proposed by the present invention Figure 4 A magnified view of the structure at B in the middle;

[0030] Figure 7 This is a structural schematic diagram of an anti-rotation component of a photovoltaic isolation transformer with a protective structure proposed by the present invention.

[0031] In the figure: 1. photovoltaic isolation transformer body; 2. groove plate; 3. strip groove; 4. vertical fixing rod; 5. spring; 6. sliding sleeve; 7. protective plate; 8. strip guide groove; 9. sliding column; 10. rotating plate; 11. rectangular groove; 12. sliding plate; 13. strip placement groove; 14. transverse fixing rod; 15. spring; 16. sliding sleeve; 17. limiting through hole; 18. rectangular notch; 19. rotating connecting rod; 20. U-shaped block; 21. protective plate; 22. telescopic rod; 23. spring; 24. U-shaped groove plate; 25. strip guide groove; 26. sliding sleeve; 27. rotating support rod; 28. limiting block; 29. ​​vertical fixing rod; 30. spring; 31. limiting plug column. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] Example 1:

[0035] Reference Figure 1-Figure 7 A photovoltaic isolation transformer with a protective structure, which is mainly composed of a photovoltaic isolation transformer body 1 and a groove plate 2 at its upper end. The groove plate 2 integrates a protective mechanism 1 and a protective mechanism 2 inside, which together provide all-round anti-collision protection for the photovoltaic isolation transformer body 1; wherein, a strip groove 3 is vertically opened on the inner wall of the groove plate 2; a vertical fixing rod 4 is fixedly connected between the two end walls of the strip groove 3; a spring 5 is provided on the outer periphery of the vertical fixing rod 4, one end of the spring 5 is fixed on one end wall of the strip groove 3, and the other end is connected to a sliding sleeve 6; four sliding sleeves 6 are respectively slidably sleeved on the outer periphery of the vertical fixing rod 4, and are slidably connected at the inner wall of the strip groove 3; a protective plate 7 is fixedly connected between the four sliding sleeves 6 through a connecting piece such as a beam or a connecting plate, so that the protective plate 7 can be moved on the inner wall of the groove plate 2. Sliding; Furthermore, a strip slide 8 is horizontally opened on the inner side wall of the groove plate 2; two sliding columns 9 are respectively slidably connected to the inner wall of the strip slide 8, and a rotating plate 10 is fixedly connected between the two sliding columns 9, so that the rotating plate 10 can both slide in the strip slide 8 and rotate around the axis of the sliding column 9; a rectangular groove 11 is opened on the surface of the rotating plate 10, and two sliding plates 12 are slidably connected in the rectangular groove 11; each sliding plate 12 is opened on a rectangular recess 18, and a rotating connecting rod 19 is rotatably connected to the rectangular recess 18 through a rotating shaft; the end of the rotating connecting rod 19 is rotatably connected to a U-shaped block 20 through a rotating shaft, and the surfaces of the four U-shaped blocks 20 are fixedly connected to a protective plate 21.

[0036] In the present invention, when the upper end of the photovoltaic isolation transformer body 1 is subjected to an external collision, protective plate 1 7 will first contact the collision object. Through the sliding of sliding sleeve 1 6 on vertical rod 1 4 and the elastic action of spring 1 5, the collision force is absorbed and dispersed, thereby protecting the photovoltaic isolation transformer body 1 from direct impact. When the side of the photovoltaic isolation transformer body 1 is subjected to an external collision, protective plate 2 21 will first contact the collision object. Due to the design of the rotating plate 10 and the sliding plate 12, protective plate 2 21 can rotate and slide to a certain extent to adapt to collision forces in different directions. Through the action of buffer components 1 and 2, the collision force is effectively absorbed and dispersed, protecting the side of the photovoltaic isolation transformer body 1 from damage. At the same time, the anti-rotation component ensures that protective plate 2 21 can remain stable and motionless when not needed.

[0037] Example 2:

[0038] Reference Figure 1-Figure 7 Based on the first embodiment, a U-shaped groove plate 24 is fixedly installed on the photovoltaic isolation transformer body 1; strip guide grooves 25 are vertically opened on both sides of the U-shaped groove plate 24; two sliding sleeve blocks 3 26 are slidably connected to the inner wall of the strip guide groove 25; a rotation support rod 27 is rotatably connected between the two sliding sleeve blocks 3 26 through a rotating shaft; a limit block 28 is fixedly connected to the end of the rotation support rod 27, which is used to lock the rotating plate 10 and prevent it from rotating; a reset structure is also connected between the strip guide groove 25 and the sliding sleeve block 3 26 to ensure that the rotation support rod 27 and the limit block 28 can be automatically reset.

[0039] In the present invention, when it is necessary to fix the rotating plate 10, the sliding sleeve block 3 26 is operated to slide in the strip guide groove 25, and the rotation support rod 27 is driven to rotate, so that the limit block 28 is locked into the corresponding position on the rotating plate 10, thereby preventing it from rotating; when it is necessary to release the fixation, the sliding sleeve block 3 26 is operated in the reverse direction to disengage the limit block 28 from the rotating plate 10, and the rotating plate 10 can rotate or slide freely; the reset structure ensures that after the fixation is released, the rotation support rod 27 and the limit block 28 can automatically reset to the initial position.

[0040] Example 3:

[0041] Reference Figure 1-Figure 7Based on the first and second embodiments, a strip-shaped placement groove 13 is opened on the inner side wall of the rectangular groove 11, and a transverse fixing rod 14 is fixedly connected between the two end walls of the strip placement groove 13; the outer periphery of the transverse fixing rod 14 is provided with a second spring 15; the outer periphery of the transverse fixing rod 14 is also slidably sleeved with a second sliding sleeve block 16, and the second sliding sleeve block 16 is slidably connected at the inner wall of the strip placement groove 13; the two ends of the sliding plate 12 are fixedly connected to the two sliding sleeve blocks 16; a telescopic rod 22 is fixedly connected between the two sliding plates 12, and the outer periphery of the telescopic rod 22 is provided with a third spring 23; the two ends of the third spring 23 are respectively fixedly connected to the opposite surfaces of the two sliding plates 12.

[0042] In the present invention, when the landing plate 12 slides in the rectangular groove 11, it drives the second sliding sleeve 16 to slide on the cross-fixing rod 14 and compresses or stretches the second spring 15; the elastic action of the second spring 15 provides a buffer for the sliding of the landing plate 12, effectively absorbing and dispersing the collision force;

[0043] When the two pallets 12 move closer to or farther from each other due to collision force, the spring three 23 will be compressed or stretched; the elastic action of the spring three 23 provides a buffer for the relative movement between the pallets 12, further enhancing the stability and impact resistance of the protective structure.

[0044] Example 4:

[0045] Reference Figure 1-Figure 7 Based on the first, second and third embodiments, a second vertical rod 29 is fixedly connected between the two end walls of the strip guide groove 25; a fourth spring 30 is provided on the outer periphery of the second vertical rod 29; and a third sliding sleeve block 26 is slidably sleeved on the outer periphery of the second vertical rod 29.

[0046] In the present invention, when the sliding sleeve block three 26 slides in the strip guide groove 25 and drives the rotary support rod 27 to rotate, the spring four 30 will be compressed or stretched; when reset is required, such as releasing the fixation of the rotating plate 10, the elastic action of the spring four 30 will push the sliding sleeve block three 26 to slide along the vertical fixing rod two 29 until the rotary support rod 27 and the limit block 28 return to their initial positions, thereby achieving automatic reset.

[0047] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A photovoltaic isolation transformer with a protective structure, comprising a photovoltaic isolation transformer body (1), characterized in that: A groove plate (2) is installed at the upper end of the photovoltaic isolation transformer body (1), and the interior of the groove plate (2) is respectively connected to a first protection mechanism and a second protection mechanism; The protective mechanism comprises a strip groove (3) vertically provided on the inner wall of the groove plate (2); a vertical fixing rod (4) is fixedly connected between the two end walls of the strip groove (3); a spring (5) is provided on the outer periphery of the vertical fixing rod (4); a sliding sleeve (6) is slidably sleeved on the outer periphery of the vertical fixing rod (4); and the sliding sleeve (6) is slidably connected at the inner wall of the strip groove (3); a protective plate (7) is fixedly connected between four sliding sleeves (6), and the protective plate (7) is slidably connected to the inner wall of the groove plate (2), and is used for performing anti-collision protection on the upper end of the photovoltaic isolation transformer body (1) in the later stage; The second protection mechanism comprises a strip-shaped slide groove (8) which is transversely opened on the inner wall of the groove plate (2); the inner wall of the strip-shaped slide groove (8) is slidably connected to a sliding column (9); a rotating plate (10) is fixedly connected between the two sliding columns (9); and the rotating plate (10) is rotatable and slidable with the groove plate (2) through the sliding column (9); a rectangular groove (11) is opened on the surface of the rotating plate (10); the inner wall of the rectangular groove (11) is slidably connected to a sliding plate (12); a rectangular notch (18) is opened on the sliding plate (12); the rectangular notch (18) is fixedly connected to the groove plate (2) through the sliding column (9); The rotating shaft is rotatably connected to a rotating link (19), and the end of the rotating link (19) is rotatably connected to a U-shaped block (20) via the rotating shaft. The surfaces of the four U-shaped blocks (20) are fixedly connected to a second protective plate (21) for later anti-collision protection of the side of the photovoltaic isolation transformer body (1). A buffer component 1 is connected between the rectangular groove (11) and the sliding plate (12), and a buffer component 2 is connected between the two sliding plates (12). Anti-rotation components for preventing the second protective plate (21) from rotating are installed on the front and back sides of the photovoltaic isolation transformer body (1).

2. The photovoltaic isolation transformer with a protective structure according to claim 1, characterized in that: The anti-rotation component comprises a U-shaped groove plate (24) fixedly mounted on a photovoltaic isolation transformer body (1), wherein both sides of the U-shaped groove plate (24) are vertically provided with a strip guide groove (25), an inner wall of the strip guide groove (25) is slidably connected to a sliding sleeve block (26), two sliding sleeve blocks (26) are rotatably connected to each other via a rotating shaft, an end of the rotating sleeve rod (27) is fixedly connected to a limit block (28) for clamping the rotating plate (10) and preventing it from rotating, and a reset structure is connected between the strip guide groove (25) and the sliding sleeve block (26).

3. The photovoltaic isolation transformer with a protective structure according to claim 1, characterized in that: The buffer component 1 comprises a strip-shaped placement groove (13) provided on the inner wall of the rectangular groove (11); a transverse fixing rod (14) is fixedly connected between the two end walls of the strip-shaped placement groove (13); a spring 2 (15) is provided on the outer periphery of the transverse fixing rod (14); a sliding sleeve 2 (16) is slidably sleeved on the outer periphery of the transverse fixing rod (14); and the sliding sleeve 2 (16) is slidably connected to the inner wall of the strip-shaped placement groove (13); and the two ends of the sliding plate (12) are fixedly connected to the two sliding sleeves 2 (16).

4. The photovoltaic isolation transformer with a protective structure according to claim 1, characterized in that: The second buffer component comprises a telescopic rod (22) fixedly connected between two sliding plates (12); a spring (23) is provided on the outer periphery of the telescopic rod (22); and two ends of the spring (23) are respectively fixedly connected to opposite surfaces of the two sliding plates (12).

5. The photovoltaic isolation transformer with a protective structure according to claim 2, characterized in that: The reset structure includes a second vertical fixing rod (29) fixedly connected between the two end walls of the strip guide groove (25), a fourth spring (30) is provided on the outer periphery of the second vertical fixing rod (29), and the third sliding sleeve block (26) is slidably sleeved on the outer periphery of the second vertical fixing rod (29).

6. The photovoltaic isolation transformer with a protective structure according to claim 1, characterized in that: A limiting through hole (17) is provided on the surface of the rotating plate (10), and a limiting plug post (31) is fixedly connected to the upper end surface of the protective plate (7), and the limiting plug post (31) is inserted into the inner wall of the limiting through hole (17) to prevent the rotating plate (10) from continuing to slide through the strip-shaped slide groove (8) and the sliding post (9) after the rotating plate (10) is completely accommodated.

7. The photovoltaic isolation transformer with a protective structure according to claim 1, characterized in that: The upper end of the spring one (5) is fixedly connected to the lower end surface of the sliding sleeve one (6), and the lower end of the spring one (5) is fixedly connected to the end wall of the strip groove (3).

8. The photovoltaic isolation transformer with a protective structure according to claim 3, characterized in that: One end of the second spring (15) is fixedly connected to one end surface of the second sliding sleeve (16), and the other end of the second spring (15) is fixedly connected to the end wall of the strip-shaped placement groove (13).

9. The photovoltaic isolation transformer with a protective structure according to claim 5, characterized in that: The upper end of the spring four (30) is fixedly connected to the lower end surface of the sliding sleeve three (26), and the lower end of the spring four (30) is fixedly connected to the end wall of the strip guide groove (25).

10. The photovoltaic isolation transformer with a protective structure according to claim 6, characterized in that: The inner diameter of the position-limiting through hole (17) is adapted to the designed outer diameter of the position-limiting plug post (31), and is used to improve the stability of the position-limiting plug post (31) after it is inserted.

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