Multi-seal solar cell junction box
By designing a multi-sealed solar cell junction box, a better sealing effect is achieved using waterproof plugs and sealant, the problem of insufficient sealing in the prior art is solved, and the protection performance of the equipment is enhanced.
Patent Information
- Application Number
- CN202420686393.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-07
AI Technical Summary
Existing solar cell junction boxes are difficult to achieve sufficient sealing in harsh outdoor environments, resulting in possible water leakage and other problems.
A multi-sealed solar cell junction box is designed, using a box formed by buckle between the base and the cover plate, with a built-in electronic device module, the cable extends through the holes in the side wall of the box, and an elastic waterproof plug is placed on it, and the box is filled with sealant to achieve complete sealing.
By setting up waterproof plugs and filling sealant, the sealing effect of the junction box is significantly improved, water leakage problem is avoided, and the protection performance of electronic components is enhanced.
Smart Images

Figure CN222620987U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to solar cell accessories, in particular to a multi-sealed solar cell junction box. Background Art
[0002] The solar cell junction box is an important part of the solar cell assembly. It connects multiple solar panels to each other, collects the current on each panel, and then centrally inverts it. Since solar cells must be installed outdoors, the environmental conditions are quite harsh, so the electronic components in the junction box need to be fully protected to avoid water leakage and other situations. Therefore, the sealing of the solar cell junction box is always an important performance that it pursues. Summary of the invention
[0003] The purpose of the utility model is to comply with this demand and provide a multi-sealed solar cell junction box.
[0004] The utility model adopts such a technical scheme: a multi-sealed solar cell junction box, comprising a box body formed by buckling a base and a cover plate, wherein an electronic device module is built in the box body, the electronic device module is electrically connected to a cable, and the cable extends out of the box body through a hole in a side wall of the box body; the characteristic is that: the base comprises a bottom plate, wherein an enclosed side wall is formed on a part of the bottom plate area, and the cover plate is buckled with the enclosed side wall; a through hole is formed on the side wall at the junction of the enclosed area and the unenclosed area of the bottom plate, and the cable passes through the through hole, an elastic waterproof plug is sleeved on the cable, and the through hole is in close contact with the waterproof plug; a sealant is poured into the box body, and the electronic device module is completely immersed in the sealant.
[0005] Furthermore, the height of the sealant is equal to the height of the side wall.
[0006] Furthermore, the sealant is formed after the cables and the waterproof plug are inserted, and the part of the waterproof plug inside the box body is immersed in the sealant.
[0007] The box body of the utility model is composed of only two parts. After assembly, the box body has only two gaps, namely the buckle joint between the cover plate and the side wall, and the through hole for passing the cable. Therefore, the utility model sets a waterproof plug at the through hole, and uses its elasticity to fill the gap at the through hole to play a sealing role; at the same time, the sealant fills the entire box body, not only wrapping the electronic device module in the sealant, but also further filling the gaps at the through hole, the waterproof plug, and the cable, making it completely sealed. It can be seen that the utility model has a better sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural schematic diagram of the utility model.
[0009] Figure 2 yes Figure 1 It is the AA section view.
[0010] Figure 3 It is an exploded schematic diagram of the utility model. DETAILED DESCRIPTION
[0011] See the accompanying drawings. This embodiment includes a box body composed of a cover plate 1 and a base 3, in which an electronic device module 2 is installed; wherein the base 3 can be divided into a bottom plate 31 and an enclosed side wall 32, which are integrally formed, and the side wall 32 does not cover the entire bottom plate, but leaves a portion of the unenclosed area. A through hole is opened on the side wall, and the cable 5 extends into the box body through the through hole and is electrically connected to the electronic device module 2. The cable 5 is also covered with a waterproof plug 4 made of silicone material, which is pressed by the through hole to play a sealing role. At the same time, after the cable and the waterproof plug are installed, the sealant 6 is poured into the entire box body to fill the gaps in the box body, thereby playing a better sealing role.
Claims
1. A multi-sealed solar cell junction box, comprising a box body formed by buckling a base and a cover plate, wherein an electronic device module is built into the box body, the electronic device module is electrically connected to a cable, and the cable extends out of the box body through a hole in a side wall of the box body; characterized in that: The base includes a bottom plate, wherein a part of the bottom plate area is formed with an enclosed side wall, and the cover plate is buckled with the enclosed side wall; a through hole is opened on the side wall at the junction of the enclosed area and the unenclosed area of the bottom plate, and the cable passes through the through hole, and an elastic waterproof plug is sleeved on the cable, and the through hole is in close contact with the waterproof plug; sealant is poured into the box body, and the electronic device module is completely immersed in the sealant.
2. A multi-sealed solar cell junction box as claimed in claim 1, characterized in that: The height of the sealant is equal to the height of the side wall.
3. A multi-sealed solar cell junction box as claimed in claim 2, characterized in that: The sealant is formed after the cables and the waterproof plug are inserted, and the part of the waterproof plug inside the box body is immersed in the sealant.