A junction box mounting structure for a photovoltaic module production

Abstract

The utility model discloses a junction box mounting structure for photovoltaic module production belongs to photovoltaic module production technical field, including backplate, and the fixed frame is fixedly connected on the backplate, first clamping plate and second clamping plate are slidably connected in fixed frame both sides through adjusting mechanism respectively, the side of second clamping plate to first clamping plate is equipped with flat groove, and the side of first clamping plate to second clamping plate is equipped with limiting hole, and the spring is fixedly connected between first clamping plate and adjusting mechanism, junction box, and the limiting rod is fixedly connected to the both sides of junction box, and junction box is clamped between first clamping plate and second clamping plate, when two limiting rods are clamped in limiting hole and flat groove respectively. The utility model has the organic combination of convenient adjustment and installation reliability, and the installation efficiency of junction box in photovoltaic module production is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module manufacturing technology, and in particular relates to a junction box installation structure for photovoltaic module manufacturing. Background Technology

[0002] Against the backdrop of ever-increasing global demand for clean energy, photovoltaic (PV) power generation has become an important direction for energy development due to its advantages such as being clean and renewable. As the core component of a PV power generation system, the performance and reliability of PV modules directly affect the efficiency and stability of the entire power generation system.

[0003] Junction boxes are an important component of photovoltaic modules. They are mainly used to collect the current from the solar cells, connect external circuits, and provide waterproofing, insulation, and protection. Their connection to the backsheet of the photovoltaic module must meet both mechanical fixing and electrical connection requirements.

[0004] In the prior art, Chinese Patent No. CN219980774U discloses an installation structure for a photovoltaic module junction box, including a back plate and a junction box. A positioning plate is fixedly connected to the bottom of the back plate, and a retaining sleeve is fixedly connected to the upper side of the junction box. Fixing blocks are provided on both the left and right sides of the junction box, and installation components are provided inside the fixing blocks. The installation components include a threaded rod, with a knob fixedly connected to the end of the threaded rod away from the junction box, and a bearing with an interference fit to the end of the threaded rod near the junction box. A clamping plate is fixedly connected to the outside of the bearing, and a limit block is welded to the lower side of the clamping plate. Although this device can clamp and fix the junction box, it requires turning two knobs sequentially during the fixing process, which is cumbersome and seriously affects the installation efficiency of the junction box.

[0005] To address this, a junction box installation structure for photovoltaic module production is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model proposes a junction box installation structure for photovoltaic module production.

[0007] To achieve the above objectives, this utility model provides a junction box installation structure for photovoltaic module production, comprising:

[0008] Back panel, on which a fixing frame is fixedly connected;

[0009] The first clamping plate and the second clamping plate are slidably connected to both sides of the fixed frame via an adjustment mechanism; the second clamping plate has a flat groove on the side facing the first clamping plate, and the first clamping plate has a limit hole on the side facing the second clamping plate; the first clamping plate and the adjustment mechanism are fixedly connected by a spring.

[0010] A junction box is provided, with limiting rods symmetrically fixed to both sides. The junction box is clamped between the first clamping plate and the second clamping plate, and the two limiting rods are respectively engaged in the limiting hole and the flat groove.

[0011] Preferably, when the junction box is clamped between the first clamping plate and the second clamping plate, the top of the junction box abuts against the bottom surface of the fixing frame.

[0012] Preferably, the first clamping plate has an inclined groove on the side facing the second clamping plate corresponding to the flat groove, the inclined groove gradually becomes shallower from bottom to top, and the limiting hole is located at the shallowest part of the inclined groove.

[0013] Preferably, the adjusting mechanism includes a bidirectional threaded rod, which is threadedly connected to the fixed frame and perpendicular to the first clamping plate and the second clamping plate; threaded plates are symmetrically threaded on both sides of the bidirectional threaded rod, and a second connecting rod is fixedly connected to the outer side of the threaded plate near the second clamping plate, the second connecting rod passing through the fixed frame and fixedly connected to the second clamping plate; a first connecting rod is fixedly connected to the outer side of the threaded plate near the first clamping plate, the first connecting rod passing through the fixed frame and fixedly connected to the spring.

[0014] Preferably, a knob is fixedly connected in the middle of the bidirectional threaded rod.

[0015] Preferably, a guide rod is also fixedly connected to the side of the first clamping plate near the threaded plate, and the guide rod passes through the fixed frame and is slidably connected to the fixed frame.

[0016] Preferably, when the first clamping plate and the second clamping plate are not clamped, the guide rod abuts against the outer side of the threaded plate near the first clamping plate.

[0017] Preferably, at least two of both the first connecting rod and the second connecting rod are provided, and they are symmetrically arranged on both sides of the threaded rod.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] The back plate and fixing frame provide a stable installation foundation for the junction box. The first and second clamping plates clamp and fix the junction box. The adjustment mechanism can adjust the distance between the first and second clamping plates to flexibly adapt to different models of junction boxes. The spring setting allows the first clamping plate to elastically reset under the pressure of the limit rod, realizing the automatic locking function and avoiding the cumbersome operation of turning the knob multiple times in the existing technology. The snap-fit ​​structure of the limit rod, limit hole and flat groove ensures the stability of the junction box in mechanical fixation and electrical connection after installation. The whole structure organically combines the convenience of adjustment and the reliability of installation, which greatly improves the installation efficiency of junction boxes in photovoltaic module production. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of the junction box installation structure for photovoltaic module production according to this utility model;

[0022] Figure 2 This is a sectional view of the junction box installation structure for photovoltaic module production according to this utility model;

[0023] Figure 3 This is a schematic diagram of the adjustment mechanism structure in this utility model;

[0024] Figure 4 This is a schematic diagram of the junction box structure in this utility model.

[0025] In the diagram: 1. Back plate; 2. Junction box; 3. Fixing frame; 4. First clamping plate; 5. Second clamping plate; 6. Bidirectional threaded rod; 7. Threaded plate; 8. First connecting rod; 9. Spring; 10. Second connecting rod; 11. Limiting rod; 12. Inclined groove; 13. Limiting hole; 14. Flat groove; 15. Guide rod; 16. Knob. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Reference Figures 1 to 4 As shown, this embodiment provides a junction box installation structure for photovoltaic module production, including:

[0029] Back panel 1, with a fixing frame 3 fixedly connected to it;

[0030] The first clamping plate 4 and the second clamping plate 5 are slidably connected to both sides of the fixed frame 3 through the adjustment mechanism; the second clamping plate 5 has a flat groove 14 on the side facing the first clamping plate 4, and the first clamping plate 4 has a limit hole 13 on the side facing the second clamping plate 5; the first clamping plate 4 and the adjustment mechanism are fixedly connected by a spring 9.

[0031] Junction box 2 has symmetrically fixed limit rods 11 on both sides. Junction box 2 is clamped between the first clamping plate 4 and the second clamping plate 5. At this time, the two limit rods 11 are respectively engaged in the limit hole 13 and the flat groove 14.

[0032] The back plate 1 and the fixing frame 3 provide a stable installation base for the junction box 2. The first clamping plate 4 and the second clamping plate 5 clamp and fix the junction box 2. The adjustment mechanism can adjust the distance between the first clamping plate 4 and the second clamping plate 5 to flexibly adapt to different models of junction boxes 2. The spring 9 allows the first clamping plate 4 to elastically reset under the pressure of the limiting rod 11, realizing the automatic locking function and avoiding the cumbersome operation of repeatedly turning the knob 16 in the prior art. The snap-fit ​​structure of the limiting rod 11 with the limiting hole 13 and the flat groove 14 ensures the stability of the junction box 2 in mechanical fixation and electrical connection after installation. The whole structure organically combines the convenience of adjustment and the reliability of installation, which greatly improves the installation efficiency of the junction box 2 in photovoltaic module production.

[0033] In a further optimized design, when junction box 2 is clamped between the first clamping plate 4 and the second clamping plate 5, the top of junction box 2 abuts against the bottom surface of the fixing frame 3.

[0034] When junction box 2 is clamped between the first clamping plate 4 and the second clamping plate 5, its top abuts against the bottom surface of the fixing frame 3. This design forms a stable mechanical support structure. On the one hand, the fixing frame 3 applies a downward limiting force to the top of junction box 2, forming a three-dimensional constraint with the lateral clamping force of the first clamping plate 4 and the second clamping plate 5, ensuring that junction box 2 will not move up or down or shake after installation, thus enhancing the reliability of the overall connection. On the other hand, this abutting fit makes the contact between junction box 2 and fixing frame 3 tighter, which helps to improve the stability of the electrical connection. It also provides a solid structural foundation for junction box 2 to resist external forces such as vibration and impact during the operation of photovoltaic modules, ensuring its long-term stable operation.

[0035] In a further optimized design, the first clamping plate 4 is provided with an inclined groove 12 on the side of the flat groove 14 facing the second clamping plate 5. The inclined groove 12 gradually becomes shallower from bottom to top, and the limiting hole 13 is located at the shallowest part of the inclined groove 12.

[0036] The inclined groove 12 of the first clamping plate 4 gradually decreases in depth from bottom to top, with the limiting hole 13 located at the shallowest point. This design forms a dynamic cooperation mechanism with the limiting rod 11 of the junction box 2: when the junction box 2 is pressed, the limiting rod 11 slides along the inner wall of the inclined groove 12 and pushes the first clamping plate 4 outward. The gradually changing slope of the inclined groove 12 allows the limiting rod 11 to complete vertical positioning simultaneously during the movement, until it reaches the shallowest point of the inclined groove 12 and is exactly aligned with the limiting hole 13. At this time, the restoring force of the spring 9 pushes the first clamping plate 4 to lock the limiting rod 11 into the limiting hole 13, realizing an automated installation process of "press-slide-lock". This gradient structure of the inclined groove 12 and the limiting hole 13 simplifies the alignment operation during installation through the guiding function of the inclined groove 12, and utilizes the gradual depth characteristic to make the limiting rod 11 produce a mechanical self-locking effect at the moment of locking, avoiding the cumbersome steps of multiple adjustments required by traditional threaded fixing, and significantly improving the convenience of installation and locking reliability of the junction box 2.

[0037] The scheme is further optimized. The adjustment mechanism includes a bidirectional threaded rod 6, which is threadedly connected to the fixed frame 3 and is perpendicular to the first clamping plate 4 and the second clamping plate 5. Threaded plates 7 are symmetrically threaded on both sides of the bidirectional threaded rod 6. A second connecting rod 10 is fixedly connected to the outer side of the threaded plate 7 near the second clamping plate 5. The second connecting rod 10 passes through the fixed frame 3 and is fixedly connected to the second clamping plate 5. A first connecting rod 8 is fixedly connected to the outer side of the threaded plate 7 near the first clamping plate 4. The first connecting rod 8 passes through the fixed frame 3 and is fixedly connected to the spring 9.

[0038] The adjustment mechanism adopts a design that combines a bidirectional threaded rod 6 with a threaded plate 7. The threads on both sides of the bidirectional threaded rod 6 are in opposite directions. When the knob 16 is turned, the two threaded plates 7 can move synchronously in opposite directions. The movement is transmitted through the first connecting rod 8 and the second connecting rod 10, thereby adjusting the distance between the first clamping plate 4 and the second clamping plate 5. This structure utilizes the precision of the threaded transmission to enable the clamping plates on both sides to move synchronously and symmetrically, ensuring a uniform distribution of clamping force on the junction box 2 and avoiding deformation or loosening of the junction box 2 caused by eccentric clamping. At the same time, the threaded transmission has a self-locking characteristic, and the clamping distance can be kept stable without additional locking devices after adjustment. It is suitable for quick adaptation of different models of junction boxes 2, and after the first adjustment, the disassembly and assembly of the same model of junction box 2 does not require repeated turning of the knob 16. The structure organically combines the convenience of adjustment and the stability of clamping, effectively improving the efficiency and reliability of junction box 2 installation in photovoltaic module production.

[0039] The design was further optimized by fixing a knob 16 in the middle of the bidirectional threaded rod 6.

[0040] A knob 16 is fixedly connected to the middle of the bidirectional threaded rod 6. This design uses the knob 16 as the core of the adjustment mechanism. The bidirectional threaded rod 6 can be driven to rotate by directly rotating the knob 16, and the distance between the first clamping plate 4 and the second clamping plate 5 can be adjusted synchronously using the thread transmission principle. This knob 16 control method is convenient, labor-saving and efficient. Compared with the traditional structure that requires tools or separate adjustment of the two screws, the integrated design of the knob 16 allows the operator to complete the adjustment of the clamping distance with one hand, significantly shortening the adjustment time. Furthermore, the diameter and surface texture of the knob 16 can be optimized according to ergonomics to improve the grip comfort and rotation smoothness during operation. Especially in the scenario of mass production of photovoltaic modules, it can greatly improve the preparation efficiency before the installation of the junction box 2, and significantly improve the practicality and ease of use of the adjustment mechanism.

[0041] In a further optimized design, a guide rod 15 is fixedly attached to the side of the first clamping plate 4 near the threaded plate 7. The guide rod 15 passes through the fixed frame 3 and is slidably connected to the fixed frame 3.

[0042] A guide rod 15 is fixedly connected to the side of the first clamping plate 4 near the threaded plate 7. The guide rod 15 passes through the fixed frame 3 and is slidably connected to the fixed frame 3. Its advantage is that it provides precise guidance for the movement of the first clamping plate 4, preventing it from shifting or tilting when squeezed by the spring force of the spring 9 or the limit rod 11. This ensures that the first clamping plate 4 always moves smoothly in a fixed direction, so that the limit rod 11 can accurately slide into the inclined groove 12 and engage with the limit hole 13, ensuring the smoothness and reliability of the installation process. At the same time, the sliding cooperation between the guide rod 15 and the fixed frame 3 can enhance the stability of the first clamping plate 4 when it moves, reduce the wear of parts caused by shaking, and extend the service life of the entire installation structure. In addition, the guide structure cooperates with the threaded transmission of the adjustment mechanism to further improve the accuracy of the clamping plate spacing adjustment and the uniformity of the clamping force, making the mechanical performance of the junction box 2 installation structure more stable and reliable.

[0043] In a further optimized scheme, when the first clamping plate 4 and the second clamping plate 5 are not clamped, the guide rod 15 abuts against the outer side of the threaded plate 7 near the first clamping plate 4.

[0044] When the first clamping plate 4 and the second clamping plate 5 are not clamped, the guide rod 15 abuts against the outer side of the threaded plate 7 near the first clamping plate 4. This design allows the initial positioning reference to be formed through the abutment relationship between the guide rod 15 and the threaded plate 7 when the adjustment mechanism is not clamping the junction box 2. In addition, when the knob 16 is rotated to adjust the position of the threaded plate 7, the abutment between the guide rod 15 and the threaded plate 7 can help transmit the adjustment force, making the movement of the first clamping plate 4 more stable. This structure combines the positioning and adjustment guidance functions in the non-clamping state, further optimizing the stability and operability of the installation structure in the non-working state and during the adjustment process.

[0045] The design is further optimized so that at least two of the first connecting rod 8 and the second connecting rod 10 are provided, and they are symmetrically arranged on both sides of the threaded rod.

[0046] By increasing the number of connecting rods and symmetrically arranging them, the uniformity of force distribution during the movement of the clamping plate can be significantly improved. On the one hand, multiple connecting rods can distribute the driving force of the threaded plate 7 to the clamping plate, avoiding tilting or deformation of the clamping plate caused by single-point force, ensuring that the first clamping plate 4 and the second clamping plate 5 always move in parallel during adjustment, thereby distributing the clamping force on the junction box 2 evenly on both sides and improving the reliability of fixation. On the other hand, the symmetrically arranged connecting rods and guide rods 15 form a multi-point support structure, enhancing the stability of the clamping plate during movement and reducing shaking or offset. Especially when installing a larger junction box 2, it can effectively resist the torque caused by uneven clamping force, ensuring the precise fit between the limit rod 11 and the inclined groove 12 and the limit hole 13. At the same time, this structure can also improve the fatigue strength of the connecting rod assembly, extend the service life of the installation structure, and ensure that the adjustment mechanism maintains stable transmission performance during long-term use.

[0047] Working principle:

[0048] When installing junction box 2, first adjust the distance between the first clamping plate 4 and the second clamping plate 5 according to the model of junction box 2. Turn knob 16, which will drive the bidirectional threaded rod 6 to rotate. The rotation of the bidirectional threaded rod 6 will drive the two threaded plates 7 to move horizontally in opposite directions, thereby adjusting the distance between the first clamping plate 4 and the second clamping plate 5. Then, place junction box 2 between the first clamping plate 4 and the second clamping plate 5, and insert the two limiting rods 11 into the inclined groove 12 and the sliding groove respectively. Then, press the junction box 2 towards the fixed frame 3. During this process, the limiting rod 11 will squeeze the first clamping plate 4 to move outward and stretch the spring 9. When the junction box 2 moves to contact the fixed frame 3, the limiting rod 11 will move to be concentric with the limiting hole 13. At this time, under the action of the spring 9, the first clamping plate 4 will move towards the junction box 2 to reset, so that the first clamping plate 4 and the second clamping plate 5 will clamp the junction box 2. The limiting rod 11 will be inserted into the inside of the limiting hole 13, and the junction box 2 can be fixed at this time.

[0049] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0050] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A junction box installation structure for photovoltaic module production, characterized in that, include: Back plate (1), on which a fixing frame (3) is fixedly connected; The first clamping plate (4) and the second clamping plate (5) are slidably connected to both sides of the fixed frame (3) through the adjustment mechanism; the second clamping plate (5) has a flat groove (14) on the side facing the first clamping plate (4), and the first clamping plate (4) has a limit hole (13) on the side facing the second clamping plate (5); the first clamping plate (4) and the adjustment mechanism are fixedly connected by a spring (9); Junction box (2), with limit rods (11) symmetrically fixed on both sides of the junction box (2), the junction box (2) is clamped between the first clamping plate (4) and the second clamping plate (5), at which time the two limit rods (11) are respectively engaged in the limit hole (13) and the flat groove (14).

2. The junction box installation structure for photovoltaic module production according to claim 1, characterized in that: When the junction box (2) is clamped between the first clamping plate (4) and the second clamping plate (5), the top of the junction box (2) abuts against the bottom surface of the fixing frame (3).

3. The junction box installation structure for photovoltaic module production according to claim 1, characterized in that: The first clamping plate (4) has an inclined groove (12) on the side facing the second clamping plate (5) corresponding to the flat groove (14). The inclined groove (12) gradually becomes shallower from bottom to top, and the limiting hole (13) is located at the shallowest part of the inclined groove (12).

4. The junction box installation structure for photovoltaic module production according to claim 1, characterized in that: The adjustment mechanism includes a bidirectional threaded rod (6), which is threadedly connected to the fixed frame (3) and perpendicular to the first clamping plate (4) and the second clamping plate (5). Threaded plates (7) are symmetrically threaded on both sides of the bidirectional threaded rod (6). A second connecting rod (10) is fixedly connected to the outer side of the threaded plate (7) near the second clamping plate (5). The second connecting rod (10) passes through the fixed frame (3) and is fixedly connected to the second clamping plate (5). A first connecting rod (8) is fixedly connected to the outer side of the threaded plate (7) near the first clamping plate (4). The first connecting rod (8) passes through the fixed frame (3) and is fixedly connected to the spring (9).

5. The junction box installation structure for photovoltaic module production according to claim 4, characterized in that: A knob (16) is fixedly connected in the middle of the bidirectional threaded rod (6).

6. The junction box installation structure for photovoltaic module production according to claim 4, characterized in that: The first clamping plate (4) is also fixedly connected to a guide rod (15) on the side near the threaded plate (7). The guide rod (15) passes through the fixed frame (3) and is slidably connected to the fixed frame (3).

7. The junction box installation structure for photovoltaic module production according to claim 6, characterized in that: When the first clamping plate (4) and the second clamping plate (5) are not clamped, the guide rod (15) abuts against the outside of the threaded plate (7) near the first clamping plate (4).

8. The junction box installation structure for photovoltaic module production according to claim 4, characterized in that: At least two of the first connecting rod (8) and the second connecting rod (10) are provided, and they are symmetrically arranged on both sides of the threaded rod.

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