Reinforced waterproof structure of solar panel junction box

Abstract

The utility model provides a reinforced waterproof structure of a solar panel junction box. The reinforced waterproof structure comprises a junction box seat, wherein the top of the junction box seat is provided with a waterproof assembly; the waterproof assembly comprises a cover plate arranged at the top of the junction box seat, and the bottom of the cover plate is provided with a butt joint edge. According to the reinforced waterproof structure of the solar panel junction box provided by the utility model, the top and the bottom of the junction box seat can be reinforced and sealed through the arrangement of the two waterproof sealing rings, the possibility of invasion of moisture and water is reduced, and the limiting part moves towards the right side by screwing the nut into the thread screwing part, so that the junction box seat is prevented from being damaged. In the process that the limiting part moves towards the right side, the abutting plate is continuously compressed, the abutting plate is bent by a certain angle, the outer end of the abutting plate abuts against the left end of the waterproof leather sheath, then the left end of the waterproof leather sheath is connected to the surface of the cable in a pressing mode, the silicone adhesive filler and the cover plate are arranged in a matched mode, the waterproof effect of the wiring position is improved, the structure is simple and practical, and the practicability is high. The manufacturing cost is low, and the waterproof effect of the junction box can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of junction boxes, and in particular to a reinforced waterproof structure for a solar panel junction box. Background Technology

[0002] Solar panels are typically installed on the roof of motorhomes, especially in modern vehicles where this design is becoming increasingly common. Solar panels provide additional power to the motorhome, reducing reliance on traditional power sources and making them suitable for long-distance travel or camping. The primary function of motorhome solar panels is to charge the onboard battery and power low-power appliances such as lighting, refrigerators, and charging devices. Installation methods include fixed installation or aftermarket addition. Some users also carry foldable portable solar panels for use when parked. Common types of solar panels include monocrystalline silicon, polycrystalline silicon, and flexible solar panels.

[0003] A junction box is a device used for electrical connection and protection. It typically consists of an enclosed box containing the terminals for connecting cables, wires, or electrical equipment. The main function of a junction box is to provide safe and reliable electrical connections and protect electrical connection points from environmental factors.

[0004] The junction box is located on the back of the RV's solar panel. In existing technology, the junction box is fixed to the back of the solar panel with silicone sealant. However, in actual use, it has been found that the sealing effect of the silicone sealant decreases in some areas after prolonged use. Although it can still fix the junction box to the surface of the solar panel, it cannot prevent moisture and rainwater from entering. At the same time, the sealing effect of the wiring points in the existing junction boxes is also poor, and rainwater can easily fall into the junction box from the wiring points, causing adverse effects on the junction box.

[0005] Therefore, it is necessary to provide a reinforced waterproof structure for solar panel junction boxes to solve the above-mentioned technical problems. Summary of the Invention

[0006] This utility model provides a reinforced waterproof structure for solar panel junction boxes, which solves the problem that in some existing RV roof solar panel junction boxes, the waterproof effect is poor, which affects the normal use of the junction box.

[0007] To solve the above-mentioned technical problems, this utility model provides a reinforced waterproof structure for a solar panel junction box, including: a junction box base, wherein a waterproof component is provided on the top of the junction box base;

[0008] The waterproof component includes a cover plate disposed on the top of the junction box base. The bottom of the cover plate is provided with a mating edge. A first sealing waterproof ring is provided on the outer side of the mating edge and on the inner side of the junction box base. Screws are provided on both the left and right sides of the top of the cover plate.

[0009] Preferably, a wiring port is provided on the left side of the junction box base, a threaded engagement part is provided on the left side of the wiring port, an abutment plate is provided on the left side of the threaded engagement part, and a waterproof sleeve is provided on the inner side of the abutment plate.

[0010] Preferably, a nut is provided on the left side of the junction box base and outside the threaded engagement portion, and a limiting portion is provided on the left side of the nut.

[0011] Preferably, the bottom of the junction box is provided with an annular groove, and a second sealing and waterproof ring is fitted inside the annular groove.

[0012] Preferably, the inner side of the junction box is filled with silicone sealant.

[0013] Compared with related technologies, the enhanced waterproof structure for a solar panel junction box provided by this utility model has the following beneficial effects:

[0014] By incorporating two waterproof sealing rings, the top and bottom of the junction box are effectively sealed, reducing the possibility of moisture and water intrusion. Tightening the nut into the threaded engagement part causes the limiting part to move to the right. During this movement, the limiting part continuously compresses the abutment plate, bending it at a certain angle. The outer end of the abutment plate abuts against the left end of the waterproof sleeve, thus pressing the left end of the waterproof sleeve against the surface of the cable. Combined with the silicone sealant and the cover plate, this enhances the waterproofing effect at the junction. The structure is simple, practical, and low-cost, significantly improving the waterproofing performance of the junction box. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of a waterproof structure for a solar panel junction box provided by this utility model;

[0016] Figure 2 This is a structural schematic diagram of the cover plate section from the bottom view;

[0017] Figure 3 This is a structural schematic diagram of the junction box base from the bottom view.

[0018] Figure 4 This is a structural schematic diagram showing a cross-sectional view of the nut section.

[0019] The following are the labels in the diagram: 1. Junction box base; 2. Waterproof component; 21. Cover plate; 22. Butt joint edge; 23. First sealing waterproof ring; 24. Screw; 25. Threaded engagement part; 26. Abutment plate; 27. Waterproof sleeve; 28. Nut; 29. ​​Limiting part; 3. Annular groove. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 A schematic diagram of a preferred embodiment of a waterproof structure for a solar panel junction box provided by this utility model; Figure 2 This is a structural schematic diagram of the cover plate section from the bottom view; Figure 3 This is a structural schematic diagram of the junction box base from the bottom view. Figure 4 The diagram shows a cross-sectional view of the nut section. A reinforced waterproof structure for a solar panel junction box includes: a junction box base 1, with a waterproof component 2 installed on the top of the junction box base 1.

[0022] The waterproof component 2 includes a cover plate 21 disposed on the top of the junction box base 1. The bottom of the cover plate 21 is provided with a mating edge 22. A first sealing waterproof ring 23 is provided on the outer side of the mating edge 22 and on the inner side of the junction box base 1. Screws 24 are provided on both the left and right sides of the top of the cover plate 21.

[0023] By incorporating screws 24, compared to traditional snap-fit ​​structures, the screws 24 directly and tightly fix the cover plate 21 to the top of the junction box base 1, providing better waterproof performance. The first sealing waterproof ring 23 further enhances the waterproof effect.

[0024] A wiring port is provided on the left side of the junction box 1. A threaded engagement part 25 is provided on the left side of the wiring port. An abutment plate 26 is provided on the left side of the threaded engagement part 25. A waterproof sleeve 27 is provided on the inner side of the abutment plate 26.

[0025] A nut 28 is provided on the left side of the junction box 1 and outside the threaded engagement part 25, and a limiting part 29 is provided on the left side of the nut 28.

[0026] When connecting the cable to the junction box, the cable is first passed through the limiting part 29, the nut 28 and the waterproof sleeve 27 into the junction box. By screwing the nut 28 into the threaded engagement part 25, the limiting part 29 moves to the right. During the movement of the limiting part 29 to the right, the abutment plate 26 is continuously compressed, causing the abutment plate 26 to be bent at a certain angle. The outer end of the abutment plate 26 abuts against the left end of the waterproof sleeve 27, thereby pressing the left end of the waterproof sleeve 27 against the surface of the cable, thus improving the waterproof effect at the connection point.

[0027] The bottom of the junction box 1 is provided with an annular groove 3, and a second sealing waterproof ring is fitted inside the annular groove 3.

[0028] When fixing the junction box 1 to the surface of the solar panel, silicone sealant needs to be applied to the bottom of the junction box 1 first. By setting a second sealing and waterproof ring, the bottom of the junction box 1 can still be sealed even after the silicone sealant's sealing performance is reduced.

[0029] The inside of junction box 1 is filled with silicone sealant.

[0030] After the wiring is completed, use a glue gun or other glue applicator to fill the inside of the junction box 1 with silicone sealant. This not only improves the waterproof performance of the wiring, but also enhances the connection stability at the wiring point.

[0031] The working principle of the enhanced waterproof structure for a solar panel junction box provided by this utility model is as follows:

[0032] Step 1: During use, the screws 24, compared to the traditional snap-fit ​​structure, directly and tightly fix the cover plate 21 to the top of the junction box 1, providing better waterproof performance. The first sealing waterproof ring 23 can enhance the waterproof effect. When fixing the junction box 1 to the surface of the solar panel, silicone sealant needs to be applied to the bottom of the junction box 1 first. With the second sealing waterproof ring, the bottom of the junction box 1 can still be sealed even after the silicone sealant's sealing performance is reduced.

[0033] Step 2: When connecting the cable to the junction box, first pass the cable through the limiting part 29, the nut 28 and the waterproof sleeve 27 into the junction box. By screwing the nut 28 into the threaded engagement part 25, the limiting part 29 moves to the right. During the movement of the limiting part 29 to the right, the abutment plate 26 is continuously compressed, causing the abutment plate 26 to be bent at a certain angle. The outer end of the abutment plate 26 abuts against the left end of the waterproof sleeve 27, thereby pressing the left end of the waterproof sleeve 27 onto the surface of the cable, thus improving the waterproof effect at the connection point. The cover plate 21 is then fixed with screws 24 by filling the junction box seat 1 with silicone sealant.

[0034] Compared with related technologies, the enhanced waterproof structure for a solar panel junction box provided by this utility model has the following beneficial effects:

[0035] By setting two waterproof sealing rings, the top and bottom of the junction box base 1 can be reinforced to reduce the possibility of moisture and water intrusion. By screwing the nut 28 into the threaded engagement part 25, the limiting part 29 moves to the right. During the movement of the limiting part 29 to the right, the abutment plate 26 is continuously compressed, causing the abutment plate 26 to be bent at a certain angle. The outer end of the abutment plate 26 abuts against the left end of the waterproof sleeve 27, thereby pressing the left end of the waterproof sleeve 27 against the surface of the cable. With the addition of silicone sealant and cover plate 21, the waterproof effect at the connection point is improved. The structure is simple and practical, with low manufacturing cost, and can greatly improve the waterproof effect of the junction box.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A reinforced waterproof structure for a solar panel junction box, characterized in that, include: Junction box base (1), the top of which is provided with a waterproof component (2); The waterproof component (2) includes a cover plate (21) disposed on the top of the junction box base (1). The bottom of the cover plate (21) is provided with a mating edge (22). A first sealing waterproof ring (23) is provided on the outside of the mating edge (22) and on the inside of the junction box base (1). Screws (24) are provided on both the left and right sides of the top of the cover plate (21).

2. The reinforced waterproof structure for a solar panel junction box according to claim 1, characterized in that, The junction box base (1) has a wiring port on the left side, a threaded engagement part (25) on the left side of the wiring port, an abutment plate (26) on the left side of the threaded engagement part (25), and a waterproof sleeve (27) on the inner side of the abutment plate (26).

3. The reinforced waterproof structure for a solar panel junction box according to claim 2, characterized in that, A nut (28) is provided on the left side of the junction box base (1) and outside the threaded engagement part (25), and a limiting part (29) is provided on the left side of the nut (28).

4. The reinforced waterproof structure for a solar panel junction box according to claim 1, characterized in that, The bottom of the junction box base (1) is provided with an annular groove (3), and a second sealing waterproof ring is fitted on the inner side of the annular groove (3).

5. The reinforced waterproof structure for a solar panel junction box according to claim 1, characterized in that, The inside of the junction box (1) is filled with silicone sealant.

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