Photovoltaic module wiring device

Abstract

The utility model discloses a photovoltaic module wiring device, and belongs to the technical field of photovoltaic energy, the photovoltaic module wiring device comprises a wiring box, the two sides of the wiring box are provided with openings, the top of the wiring box is slidably connected with a cover plate, the interior of the wiring box is provided with a connecting plate, the connecting plate comprises a plate body, and the plate body is slidably connected to the interior of the wiring box. The top of one side of the plate body is provided with a plurality of mounting holes, the top of the other side of the plate body is provided with a plurality of clamping blocks, the middle of the plate body is fixedly provided with the clamping blocks, and the top of the junction box is fixedly provided with a plurality of limiting holes; the trapezoidal groove is formed in the top of the pressing block, the clamping block is trapezoidal, and the trapezoidal groove and the clamping block are matched with each other, so that wires with various diameters can be well supported, and the loosening hidden danger caused by size inconsistency is greatly reduced; the internal elements of the junction box can be checked by adjusting the height of the connecting plate through the lifting mechanism, so that the difficulty and cost of later operation and maintenance are greatly reduced.

Description

Technical Field

[0001] This application relates to the field of photovoltaic energy technology, and in particular to a photovoltaic module wiring device. Background Technology

[0002] With the growing global demand for clean energy, photovoltaic power generation has developed rapidly as an important renewable energy source. Against this backdrop, photovoltaic module wiring devices have become one of the key components for improving the reliability and efficiency of photovoltaic systems.

[0003] Existing photovoltaic module wiring devices generally have the following shortcomings: First, they have poor compatibility. Most wiring devices can only adapt to wire sizes within a specific range and cannot flexibly cope with different specifications of cables that may appear on site. Second, they are inconvenient to maintain. When it is necessary to replace or inspect internal components, users have to spend a lot of time and effort to disassemble the entire device, which increases the cost burden of later operation and maintenance.

[0004] Therefore, this application provides a photovoltaic module wiring device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a photovoltaic module wiring device that overcomes these shortcomings and aims to solve the following deficiencies commonly found in existing photovoltaic module wiring devices: First, poor compatibility, as most wiring devices can only adapt to a specific range of wire sizes and cannot flexibly handle different cable specifications that may appear on site; second, inconvenient maintenance, as users have to spend a lot of time and effort to disassemble the entire device when it is necessary to replace or inspect internal components, which increases the cost burden of later operation and maintenance.

[0006] To achieve the above objectives, this application provides the following technical solution: a photovoltaic module wiring device, including a junction box, with openings on both sides of the junction box, a cover plate slidably connected to the top of the junction box, a connecting plate inside the junction box, the connecting plate including a plate body slidably connected to the inside of the junction box, a plurality of mounting holes on the top of one side of the plate body, a plurality of clamping blocks on the top of the other side of the plate body, a plurality of clamping blocks fixedly installed in the middle of the plate body, a plurality of limiting holes fixedly installed on the top of the junction box, a plurality of pressure blocks installed on the top of the junction box through the plurality of limiting holes, and a lifting mechanism provided below the plate body.

[0007] By adopting the above technical solution, when a new photovoltaic line needs to be connected, firstly, the sliding cover exposes the space inside the junction box. Then, a set of cables to be processed is passed through the opening and mounting holes in sequence until it contacts the bottom plate. Next, another set of cables to be connected is passed through another set of openings and limiting holes in sequence. The connectors of the two sets of cables are manually connected, and the cables are clamped above the clamping block. Then, the lifting mechanism pushes the plate upward until the pressure block completely covers all the parts to be fixed. During this process, due to the elasticity of the pressure block, sufficient pressure is gradually applied to tightly fit the cables together. The top of the pressure block has a trapezoidal groove, and the clamping block is trapezoidal in shape. The two work together to provide good support for wires of various diameters, greatly reducing the risk of loosening due to size mismatch. At the same time, after sliding open the cover, the height of the connecting plate can be adjusted by the lifting mechanism to inspect the internal components of the junction box, greatly reducing the difficulty and cost of later maintenance.

[0008] As a preferred embodiment of this application, the lifting mechanism includes two sets of rotating seats, which are fixedly installed on the inner wall of the junction box. Each set of rotating seats has a screw rotatably connected to its rotating end. A driven bevel gear is fixedly installed at the adjacent ends of the two sets of screws. A rotating shaft is rotatably connected to one side of the junction box. A driving bevel gear is fixedly installed at one end of the rotating shaft. The driving bevel gear meshes with the two sets of driven bevel gears. A movable seat is threaded onto the outer surface of the screw. A mounting seat is fixedly installed at the top of the movable seat. A top seat is fixedly installed at the bottom of the plate. Rotating rods are hinged between the top seat and each of the two sets of mounting seats. A rotating handle is fixedly installed through the junction box at one end of the rotating shaft.

[0009] By adopting the above technical solution, rotating the handle drives the rotating shaft to rotate, which in turn drives the driven bevel gear and screw to rotate through the active bevel gear. Since the screw is threadedly connected to the moving seat, the rotation of the screw will drive the moving seat and the mounting seat on it to move along the screw axis. Then, the rotating rod pushes the top seat and connecting plate to rise until the pressure block completely covers the part of the cable to be fixed. The height can be easily adjusted through the lifting mechanism, which allows users to complete the troubleshooting and maintenance tasks in the shortest possible time and reduces unnecessary waiting time.

[0010] As a preferred technical solution of this application, two sets of guide blocks are fixedly installed on both sides of the plate, and four sets of guide grooves are opened on the inner wall of the junction box to match the four sets of guide blocks, and the guide blocks are slidably connected to the corresponding guide grooves.

[0011] By adopting the above technical solution, the guide block and guide groove play a guiding role in the lifting and lowering process of the connecting plate, thereby improving the stability of the connecting plate during the lifting and lowering process.

[0012] As a preferred technical solution of this application, a limiting mechanism is provided on one side of the junction box, and the limiting mechanism is sleeved on the outer ring of the rotating shaft. The limiting mechanism includes a fixing nut, which is fixedly installed on the side wall of the junction box. A threaded sleeve is connected to the internal thread of the fixing nut. A threaded seat is fixedly installed at the bottom of the rotating handle. The end of the threaded sleeve away from the fixing nut is threadedly connected to the inside of the threaded seat.

[0013] By adopting the above technical solution, the threaded sleeve is separated from the threaded seat by rotating it, so that the rotating handle can be rotated to adjust the rotating shaft. The threaded sleeve is then rotated to connect it to the threaded seat and lock the threaded seat, thereby fixing the position of the rotating handle. This reduces the possibility of the connecting plate moving due to misoperation and improves the stability of the connecting plate after it is fixed.

[0014] As a preferred embodiment of this application, the dimension of the plate body on the side closest to the opening is larger than the dimension of the opening.

[0015] By adopting the above technical solution, the size of the side of the plate closest to the opening is larger than the size of the opening, so that after the plate is connected to the pressure block, the plate is sealed at the opening position, thereby keeping the junction box in a sealed state and effectively protecting the safety of the connecting wires and their connection positions.

[0016] As a preferred technical solution of this application, a rubber sealing sleeve is fixedly connected to the outer ring of the pressure block, and a sponge block is fixedly installed at the bottom of the pressure block.

[0017] By adopting the above technical solutions, the waterproof and dustproof performance of the pressure block is improved by the rubber sealing sleeve, and the sponge block can increase the friction of the pressure block without damaging the cable sheath, thus improving the protection effect of the cable.

[0018] As a preferred technical solution of this application, rubber sealing rings are fixedly installed at both the limiting hole and the mounting hole.

[0019] By adopting the above technical solution, the rubber sealing ring not only improves the tightness of the connecting cables, but also enhances the overall waterproof sealing of the junction box.

[0020] As a preferred technical solution of this application, the top of the cover plate is provided with a snap-fit ​​groove.

[0021] By adopting the above technical solution, the slot makes it easy for users to open or close the cover, thus improving its practicality during use.

[0022] The beneficial effects of this application are:

[0023] 1. When a new photovoltaic line needs to be connected, first slide the cover to expose the space inside the junction box. Then, pass one set of cables to be connected through the opening and mounting holes until they contact the bottom plate. Next, pass another set of cables to be connected through another opening and limiting hole. Manually connect the two sets of cables and clamp them above the clamping block. Then, use the lifting mechanism to push the plate upward until the pressure block completely covers all the parts to be fixed. During this process, due to the elasticity of the pressure block, sufficient pressure will be gradually applied to tightly fit the cables together. The top of the pressure block has a trapezoidal groove, and the clamping block is trapezoidal in shape. The two work together to provide good support for wires of various diameters, greatly reducing the risk of loosening due to size mismatch. At the same time, after sliding open the cover, the height of the connecting plate can be adjusted by the lifting mechanism to inspect the internal components of the junction box, greatly reducing the difficulty and cost of later maintenance.

[0024] 2. By rotating the handle, the rotating shaft is driven to rotate, which in turn drives the driven bevel gear and the screw to rotate through the active bevel gear. Since the screw is threadedly connected to the moving seat, the rotation of the screw will drive the moving seat and the mounting seat on it to move along the screw axis. This, in turn, pushes the top seat and connecting plate to rise through the rotating rod until the pressure block completely covers the part of the cable to be fixed. The height can be easily adjusted through the lifting mechanism, allowing users to complete troubleshooting and maintenance tasks in the shortest possible time and reducing unnecessary waiting time. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the internal structure of this application;

[0026] Figure 2 This is a side view of the structure of this application;

[0027] Figure 3 This is a schematic diagram of the lifting mechanism.

[0028] Figure 4 This is a schematic diagram of the connecting plate structure;

[0029] Figure 5 This is a top view of the structure of this application.

[0030] In the diagram: 1. Junction box; 2. Opening; 4. Cover plate; 5. Connecting plate; 501. Plate body; 502. Mounting hole; 503. Clamping block; 504. Limiting hole; 6. Lifting mechanism; 601. Rotating seat; 602. Screw; 603. Driven bevel gear; 605. Rotating shaft; 606. Driving bevel gear; 607. Moving seat; 608. Mounting seat; 609. Rotating rod; 610. Top seat; 7. Guide block; 8. Guide groove; 9. Rotating handle; 10. Limiting mechanism; 1001. Fixing nut; 1002. Threaded sleeve; 1003. Threaded seat; 11. Rubber sealing sleeve; 12. Sponge block; 13. Snap groove. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Reference Figure 1-5 A photovoltaic module wiring device includes a junction box 1, with openings 2 on both sides of the junction box 1. A cover plate 4 is slidably connected to the top of the junction box 1. A connecting plate 5 is provided inside the junction box 1. The connecting plate 5 includes a plate body 501, which is slidably connected to the inside of the junction box 1. Several sets of mounting holes 502 are provided on the top of one side of the plate body 501, and several sets of clamping blocks 503 are provided on the top of the other side of the plate body 501. Several sets of clamping blocks 503 are fixedly installed in the middle of the plate body 501. Several sets of limiting holes 504 are fixedly installed on the top of the junction box 1. Several sets of pressure blocks 505 are installed on the top of the junction box 1 through the several sets of limiting holes 504. A lifting mechanism 6 is provided below the plate body 501. Two sets of guide blocks 7 are fixedly installed on both sides of the plate body 501. Four sets of guide grooves 8 are provided on the inner wall of the junction box 1, which match the four sets of guide blocks 7. The guide blocks 7 are slidably connected to the corresponding guide grooves 8.

[0033] When a new photovoltaic line needs to be connected, first slide the cover plate 4 to expose the space inside the junction box 1. Then, pass one set of cables to be connected through the opening 2 and the mounting hole 502 until they contact the bottom plate 501. Next, pass another set of cables to be connected through another set of openings 2 and the limiting hole 504. Manually connect the two sets of cables and then clamp them above the clamping block 503. Then, push the plate 501 upwards using the lifting mechanism 6 until the pressure block 505 completely covers all the parts to be fixed. During this process, the pressure block 505 will gradually apply pressure due to its elastic properties. Sufficient pressure is applied to tightly bond all the cables together. The top of the pressure block 505 has a trapezoidal groove, and the clamping block 503 is also trapezoidal. The two work together to provide good support for wires of various diameters, greatly reducing the risk of loosening due to size mismatch. At the same time, after sliding open the cover plate 4, the height of the connecting plate 5 can be adjusted by the lifting mechanism 6 to inspect the internal components of the junction box 1, greatly reducing the difficulty and cost of later maintenance. The guide block 7 and the guide groove 8 guide the connecting plate 5 during the lifting process, improving the stability of the connecting plate 5 during the lifting process.

[0034] Reference Figure 1-3 The lifting mechanism 6 includes two sets of rotating seats 601, which are fixedly installed on the inner wall of the junction box 1. Each set of rotating seats 601 has a screw 602 rotatably connected to its rotating end. A driven bevel gear 603 is fixedly installed at the adjacent end of each screw 602. A rotating shaft 605 is rotatably connected to one side of the junction box 1. A driving bevel gear 606 is fixedly installed at one end of the rotating shaft 605. The driving bevel gear 606 meshes with the two sets of driven bevel gears 603. A movable seat 607 is threaded onto the outer surface of the screw 602. A mounting seat 608 is fixedly installed at the top of the movable seat 607. A top seat 6 is fixedly installed at the bottom of the plate 501. 10. A rotating rod 609 is hinged between the top seat 610 and the two sets of mounting seats 608 respectively. A rotating handle 9 is fixedly installed on a junction box 1 through one end of the rotating shaft 605. A limiting mechanism 10 is provided on one side of the junction box 1, and the limiting mechanism 10 is sleeved on the outer ring of the rotating shaft 605. The limiting mechanism 10 includes a fixing nut 1001, which is fixedly installed on the side wall of the junction box 1. A threaded sleeve 1002 is threadedly connected to the inside of the fixing nut 1001. A threaded seat 1003 is fixedly installed at the bottom of the rotating handle 9. The end of the threaded sleeve 1002 away from the fixing nut 1001 is threadedly connected to the inside of the threaded seat 1003.

[0035] By rotating the handle 9, the rotating shaft 605 is driven to rotate, which in turn drives the driven bevel gear 603 and the screw 602 to rotate via the active bevel gear 606. Since the screw 602 is threadedly connected to the movable seat 607, the rotation of the screw 602 will cause the movable seat 607 and its mounting seat 608 to move along the axial direction of the screw 602. This, in turn, pushes the top seat 610 and the connecting plate 5 to rise via the rotating rod 609 until the pressure block 505 completely covers the part of the cable to be fixed. The height of the cable 3 can be easily adjusted via the lifting mechanism 6, allowing users to complete troubleshooting and maintenance tasks in the shortest possible time and reducing unnecessary waiting time. By rotating the threaded sleeve 1002, it is separated from the threaded seat 1003, allowing the handle 9 to be rotated to adjust the rotating shaft 605. By rotating the threaded sleeve 1002, it is connected to the threaded seat 1003, locking the threaded seat 1003 and fixing the position of the handle 9. This reduces the possibility of misoperation causing the position of the connecting plate 5 to move and improves the stability of the connecting plate 5 after it is fixed.

[0036] Reference Figure 2 The side of plate 501 closest to opening 2 is larger than the size of opening 2; rubber sealing rings are fixedly installed at both the limiting hole 504 and the mounting hole 502; the side of plate 501 closest to opening 2 is larger than the size of opening 2, so that after plate 501 is connected to pressure block 505, plate 501 is sealed at the position of opening 2, thereby making junction box 1 in a sealed state, effectively protecting the safety of the connecting wire and its connection position; the rubber sealing ring not only improves the tightness of the connecting cable, but also improves the overall waterproof sealing of junction box 1.

[0037] Reference Figure 3-5 The outer ring of the pressure block 505 is fixedly connected with a rubber sealing sleeve 11, and a sponge block 12 is fixedly installed at the bottom of the pressure block 505; a snap-fit ​​groove 13 is provided on the top of the cover plate 4; the rubber sealing sleeve 11 improves the waterproof and dustproof performance of the pressure block 505, and the sponge block 12 can increase the friction of the pressure block 505 without damaging the cable sheath, thus improving the protection effect of the cable; the snap-fit ​​groove 13 makes it easy for users to open or close the cover plate 4, improving its practicality during use.

[0038] Working principle: When a new photovoltaic line needs to be connected, firstly, the sliding cover 4 exposes the space inside the junction box 1. Then, one set of cables to be processed is passed through the opening 2 and the mounting hole 502 until it contacts the bottom plate 501. Next, another set of cables to be connected is passed through another set of openings 2 and the limiting hole 504. The connectors of the two sets of cables are manually connected, and the cables are clamped above the clamping block 503. Then, the lifting mechanism 6 pushes the plate 501 upward until the pressure block 505 completely covers all the parts to be fixed. During this process, due to the elasticity of the pressure block 505, sufficient pressure is gradually applied to tightly adhere the cables together. The top of the pressure block 505 has a trapezoidal groove, and the clamping block 503 is trapezoidal in shape. The two work together to provide good support for wires of various diameters, greatly reducing the cost. The risk of loosening due to size mismatch is eliminated. After sliding open the cover plate 4, the height of the connecting plate 5 can be adjusted by the lifting mechanism 6 to inspect the internal components of the junction box 1, which greatly reduces the difficulty and cost of later maintenance. By turning the handle 9, the rotating shaft 605 is driven to rotate, which in turn drives the driven bevel gear 603 and the screw 602 to rotate through the active bevel gear 606. Since the screw 602 is threadedly connected to the moving seat 607, the rotation of the screw 602 will drive the moving seat 607 and the mounting seat 608 on it to move along the axial direction of the screw 602. Then, the rotating rod 609 pushes the top seat 610 and the connecting plate 5 to rise until the pressure block 505 completely covers the part of the cable to be fixed. The height of 3 can be easily adjusted by the lifting mechanism 6, which allows users to complete the troubleshooting and repair tasks in the shortest time and reduces unnecessary waiting time.

[0039] Among them, the guide block 7 and the guide groove 8 play a guiding role in the lifting and lowering process of the connecting plate 5, which improves the stability of the connecting plate 5 during the lifting and lowering process. By rotating the threaded sleeve 1002, it is separated from the threaded seat 1003, so that the rotating handle 9 can be rotated to adjust the rotating shaft 605. By rotating the threaded sleeve 1002, it is connected to the threaded seat 1003, and the threaded seat 1003 is locked, thereby fixing the position of the rotating handle 9, reducing the possibility of the connecting plate 5 moving due to misoperation, and improving the stability of the connecting plate 5 after it is fixed.

[0040] Meanwhile, the side of the plate 501 closest to the opening 2 is larger than the opening 2, so that after the plate 501 is connected to the pressure block 505, the plate 501 is sealed at the position of the opening 2, thereby keeping the junction box 1 in a sealed state and effectively protecting the safety of the connecting wire and its connection position; the rubber sealing sleeve 11 improves the waterproof and dustproof performance of the pressure block 505, and the sponge block 12 can increase the friction of the pressure block 505 without damaging the cable sheath, thus improving the protection effect of the cable;

[0041] In addition, the rubber sealing ring not only improves the tightness of the connecting cables, but also improves the overall waterproof sealing of the junction box 1; the snap groove 13 makes it easy for users to open or close the cover 4, improving its practicality during use.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A photovoltaic module wiring device, comprising a junction box (1), characterized in that, The junction box (1) has openings (2) on both sides. The top of the junction box (1) is slidably connected to a cover plate (4). The junction box (1) has a connecting plate (5) inside. The connecting plate (5) includes a plate body (501). The plate body (501) is slidably connected to the inside of the junction box (1). The top of one side of the plate body (501) has several sets of mounting holes (502). The top of the other side of the plate body (501) has several sets of clamping blocks (503). The middle of the plate body (501) is fixedly installed with several sets of clamping blocks (503). The top of the junction box (1) is fixedly installed with several sets of limiting holes (504). The top of the junction box (1) is installed with several sets of pressure blocks (505) through several sets of limiting holes (504). The bottom of the plate body (501) is provided with a lifting mechanism (6).

2. The photovoltaic module wiring device according to claim 1, characterized in that, The lifting mechanism (6) includes two sets of rotating seats (601), which are fixedly installed on the inner wall of the junction box (1). Each set of rotating seats (601) has a screw (602) rotatably connected to its rotating end. A driven bevel gear (603) is fixedly installed at the end of each set of screws (602) that is close to each other. A rotating shaft (605) is rotatably connected to one side of the junction box (1). A driving bevel gear (606) is fixedly installed at one end of the rotating shaft (605). 06) The screw (602) meshes with the two sets of driven bevel gears (603). The outer surface of the screw (602) is threaded with a movable seat (607). The top of the movable seat (607) is fixedly installed with a mounting seat (608). The bottom of the plate (501) is fixedly installed with a top seat (610). The top seat (610) and the two sets of mounting seats (608) are respectively hinged with rotating rods (609). One end of the rotating shaft (605) passes through the junction box (1) and is fixedly installed with a rotating handle (9).

3. A photovoltaic module wiring device according to claim 1, characterized in that, Two sets of guide blocks (7) are fixedly installed on both sides of the plate (501). The inner wall of the junction box (1) is provided with four sets of guide grooves (8) that match the four sets of guide blocks (7), and the guide blocks (7) are slidably connected to the corresponding guide grooves (8).

4. A photovoltaic module wiring device according to claim 2, characterized in that, A limiting mechanism (10) is provided on one side of the junction box (1), and the limiting mechanism (10) is sleeved on the outer ring of the rotating shaft (605). The limiting mechanism (10) includes a fixing nut (1001), which is fixedly installed on the side wall of the junction box (1). The fixing nut (1001) is internally threaded with a threaded sleeve (1002). The bottom of the rotating handle (9) is fixedly installed with a threaded seat (1003). The end of the threaded sleeve (1002) away from the fixing nut (1001) is threadedly connected to the inside of the threaded seat (1003).

5. A photovoltaic module wiring device according to claim 1, characterized in that, The side of the plate (501) closest to the opening (2) has a larger dimension than the opening (2).

6. A photovoltaic module wiring device according to claim 1, characterized in that, A rubber sealing sleeve (11) is fixedly connected to the outer ring of the pressure block (505), and a sponge block (12) is fixedly installed at the bottom of the pressure block (505).

7. A photovoltaic module wiring device according to claim 1, characterized in that, Rubber sealing rings are fixedly installed at both the limiting hole (504) and the mounting hole (502).

8. A photovoltaic module wiring device according to claim 1, characterized in that, The top of the cover plate (4) is provided with a snap groove (13).

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