Photovoltaic isolation transformer with protection structure

Abstract

The invention discloses a photovoltaic isolation transformer with a protection structure, and belongs to the field of photovoltaic isolation transformers. Comprising a photovoltaic isolation transformer body, the upper end of the photovoltaic isolation transformer body is provided with a groove plate, and the interior of the groove plate is connected with a first protection mechanism and a second protection mechanism; and the first protection mechanism comprises a strip-shaped groove vertically formed in the inner side wall of the groove plate, a first vertical fixing rod is fixedly connected between the two end walls of the strip-shaped groove, and the periphery of the first vertical fixing rod is sleeved with a first spring. Therefore, potential safety hazards caused by movement of the rotating plate are avoided; and meanwhile, due to the design of the first buffering assembly and the second buffering assembly, a good buffering effect is provided for parts such as a sliding plate, damage to the transformer body caused by external impact or vibration is reduced, and the overall safety protection performance is remarkably improved.

Description

Technical Field

[0001] The 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, with the continuous growth of global demand for renewable energy, solar photovoltaic power generation systems have been used more widely than ever before. This trend has put forward more stringent requirements on the safety, stability and durability of photovoltaic isolation transformers and their related components. However, the traditional photovoltaic isolation transformers on the market have exposed a series of significant problems in the design and actual use process.

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

[0004] Secondly, the traditional photovoltaic isolation transformer has a complex design in the fixing and releasing mechanism of the rotating plate, which usually requires the operator to master cumbersome operating steps or use specific tools, which not only increases the difficulty of operation, but also prolongs the time of maintenance work. More importantly, 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 causes subsequent maintenance problems and increases the complexity and cost of overall maintenance.

[0005] Finally, when designing the structure of traditional photovoltaic isolation transformers, the matching accuracy between the components and the stability requirements for long-term use are often not fully considered. This leads to loosening and wear between components during the operation cycle of the transformer, affecting the overall operating efficiency and life. At the same time, the ability to resist external impact is also insufficient, especially under harsh working conditions, lacking sufficient buffering mechanisms to protect the transformer from damage, thus limiting its wide application and long-term reliability in complex environments. For this reason, we provide a new type of sootblower positive pressure wall box sealing equipment. 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 protection 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 is installed at the upper end of the photovoltaic isolation transformer body, and a first protective mechanism and a second protective mechanism are respectively connected inside the groove plate;

[0009] The protection mechanism 1 includes a strip groove vertically opened on the inner side wall of the groove plate, a vertical fixing rod 1 is fixedly connected between the two end walls of the strip groove, a spring 1 is sleeved on the outer periphery of the vertical fixing rod 1, a sliding sleeve block 1 is slidably sleeved on the outer periphery of the vertical fixing rod 1, and the sliding sleeve block 1 is slidably connected at the inner wall of the strip groove, a protection plate 1 is fixedly connected between the four sliding sleeve blocks 1, and the protection plate 1 is slidably connected to the inner wall of the groove plate, which is used for anti-collision protection of the upper end of the photovoltaic isolation transformer body in the later stage;

[0010] The second protection mechanism comprises a strip slide groove horizontally opened on the inner side wall of the groove plate, the inner wall of the strip slide groove is slidably connected with a sliding column, a rotating plate is fixedly connected between the two sliding columns, and the rotating plate is rotatable and slidingly designed with the groove plate through the sliding column. The surface of the rotating plate is provided with a rectangular groove, the inner wall of the rectangular groove is slidably connected with a sliding plate, and the sliding plate is provided with a rectangular notch, and the rectangular notch is rotatably connected with a rotating connecting rod through a rotating shaft, and the end of the rotating connecting rod is rotatably connected with a U-shaped block through a rotating shaft, and the surfaces of the four U-shaped blocks are fixedly connected with a protective plate two for later anti-collision protection of the side of the photovoltaic isolation transformer body, a buffer component one is connected between the rectangular groove and the sliding plate, and a buffer component two is connected between the two sliding plates, and anti-rotation components for preventing the protective plate two from rotating are installed on the front and back sides of the photovoltaic isolation transformer body.

[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 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 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 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 1, and the sliding sleeve block 1 is slidably connected at the inner wall of the strip receiving groove, and the two ends of the sliding plate are fixedly connected to the two sliding sleeve blocks 1.

[0013] Preferably, the buffer component 2 comprises a telescopic rod fixedly connected between the two mounting 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 mounting plates.

[0014] Preferably, the reset structure includes a second vertical fixing rod fixedly connected between the two end walls of the strip-shaped guide slot, a fourth spring is sleeved on the periphery of the second vertical fixing rod, and the third sliding sleeve block is slidably sleeved on the 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 a 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 block 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 sliding sleeve block 1, 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 block 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 solution:

[0021] 1. The safety guardrail used 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 component 1 and buffer component 2 provides a good buffering effect for components such as the sliding plate, reduces the damage to the transformer body due to external impact or vibration, and significantly improves the overall safety protection performance.

[0022] 2. The safety guardrail used for substation inspection and maintenance, through the reset structure design of the anti-rotation component, allows the user to easily fix or release the fixed state of the rotating plate when necessary, 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 protective plate allows the rotating plate to be automatically fixed after storage, avoiding sliding problems caused by negligence and simplifying the maintenance process.

[0023] 3. The 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 buffer, thereby extending the service life of the equipment. At the same time, the close cooperation and precise positioning of various components ensure the stability and reliability of the entire protective structure, and it can maintain a good working condition even under harsh working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0026] Figure 3 A schematic diagram of the structure 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 a second protective mechanism after a second protective plate of a photovoltaic isolation transformer with a protective structure proposed by the present invention 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 center 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 schematic structural 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 1; 5. spring 1; 6. sliding sleeve 1; 7. protective plate 1; 8. strip slide; 9. sliding column; 10. rotating plate; 11. rectangular groove; 12. sliding plate; 13. strip placement groove; 14. transverse fixing rod; 15. spring 2; 16. sliding sleeve 1; 17. limiting through hole; 18. rectangular notch; 19. rotating connecting rod; 20. U-shaped block; 21. protective plate 2; 22. telescopic rod; 23. spring 3; 24. U-shaped groove plate; 25. strip guide groove; 26. sliding sleeve 3; 27. rotating support rod; 28. limiting card block; 29. ​​vertical fixing rod 2; 30. spring 4; 31. limiting plug column. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Embodiment 1:

[0035] Reference Figure 1-Figure 7 , a photovoltaic isolation transformer with a protective structure, the photovoltaic isolation transformer is mainly composed of a photovoltaic isolation transformer body 1 and a groove plate 2 at the upper end thereof. The groove plate 2 integrates a protective mechanism 1 and a protective mechanism 2 inside, and the two 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 sleeved 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 block 6; four sliding sleeve blocks 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 sleeve blocks 6 through a connecting piece such as a crossbeam 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 in 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 a protective plate 21 is fixedly connected to the surfaces of the four U-shaped blocks 20.

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

[0037] Embodiment 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, and the limit block 28 is used to clamp 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 three 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 clamped 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 three 26 is operated in the reverse direction to make the limit block 28 disengage 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] Embodiment three:

[0041] Reference Figure 1-Figure 7Based on the first and second embodiments, a strip placement groove 13 is provided 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; a spring 2 15 is sleeved on the outer periphery of the transverse fixing rod 14; a sliding sleeve block 16 is also slidably sleeved on the outer periphery of the transverse fixing rod 14, and the sliding sleeve block 16 is slidably connected at the inner wall of the strip placement groove 13; the two ends of the mounting plate 12 are fixedly connected to the two sliding sleeve blocks 16; a telescopic rod 22 is fixedly connected between the two mounting plates 12, and a spring 3 23 is sleeved on the outer periphery of the telescopic rod 22; the two ends of the spring 3 23 are respectively fixedly connected to the opposite surfaces of the two mounting plates 12.

[0042] In the present invention, when the sliding plate 12 slides in the rectangular groove 11, it drives the sliding sleeve 16 to slide on the transverse fixing rod 14 and compresses or stretches the spring 2 15; the elastic action of the spring 2 15 provides a buffer for the sliding of the sliding plate 12, effectively absorbing and dispersing the collision force;

[0043] When the two pallet plates 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 pallet plates 12, further enhancing the stability and impact resistance of the protective structure.

[0044] Embodiment 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 slot 25; a fourth spring 30 is sleeved 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 resetting 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 the initial position, thereby achieving automatic resetting.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope 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 arranged on the inner side 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 sleeved on the outer periphery of the vertical fixing rod (4); a sliding sleeve block (6) is slidably sleeved on the outer periphery of the vertical fixing rod (4); and the sliding sleeve block (6) is slidably connected to the inner wall of the strip groove (3); a protective plate (7) is fixedly connected between four sliding sleeve blocks (6); and the protective plate (7) is slidably connected to the inner wall of the groove plate (2), and is used for later anti-collision protection of the upper end of the photovoltaic isolation transformer body (1); The second protection mechanism comprises a strip-shaped slide groove (8) which is transversely arranged 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 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 arranged on the surface of the rotating plate (10); a sliding plate (12) is slidably connected to the inner wall of the rectangular groove (11); a rectangular notch (18) is arranged on the sliding plate (12); and 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 mounting plate (12), and a buffer component 2 is connected between the two mounting plates (12). Anti-rotation components for preventing the second protective plate (21) from rotating are installed on both 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), both sides of the U-shaped groove plate (24) are vertically provided with strip guide grooves (25), the inner wall of the strip guide groove (25) is slidably connected with a sliding sleeve block three (26), two sliding sleeve blocks three (26) are rotatably connected with a rotation support rod (27) via a rotating shaft, the end of the rotation support rod (27) is fixedly connected with a limit block (28) for clamping the rotating plate (10) and preventing the rotating plate (10) from rotating, and a reset structure is connected between the strip guide groove (25) and the sliding sleeve block three (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 sleeved on the outer periphery of the transverse fixing rod (14); a sliding sleeve block 1 (16) is slidably sleeved on the outer periphery of the transverse fixing rod (14); and the sliding sleeve block 1 (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 sleeve blocks 1 (16).

4. The photovoltaic isolation transformer with a protective structure according to claim 1, characterized in that: The buffer component 2 comprises a telescopic rod (22) fixedly connected between two mounting plates (12), a spring 3 (23) is arranged on the outer periphery of the telescopic rod (22), and two ends of the spring 3 (23) are respectively fixedly connected to opposite surfaces of the two mounting plates (12).

5. The photovoltaic isolation transformer with a protective structure according to claim 2, characterized in that: The reset structure comprises a second vertical fixing rod (29) fixedly connected between the two end walls of the strip-shaped guide groove (25), a fourth spring (30) is sleeved on the periphery of the second vertical fixing rod (29), and the third sliding sleeve block (26) is slidably sleeved on the 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 limit hole (17) is provided on the surface of the rotating plate (10), and a limit plug post (31) is fixedly connected to the upper end surface of the protective plate (7). The limit plug post (31) is inserted into the inner wall of the limit hole (17) to prevent the rotating plate (10) from continuing to slide through the strip slide groove (8) and the sliding post (9) after the rotating plate (10) is completely stored.

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 first 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 block 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 limiting through hole (17) is adapted to the designed outer diameter of the limiting plug post (31), so as to improve the stability of the limiting plug post (31) after it is inserted.

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