A photovoltaic module junction box sealing mechanism

Abstract

The utility model discloses a photovoltaic module junction box sealing mechanism, including the wiring lower box, the side of wiring lower box installs the wiring port, the upper portion of wiring lower box is installed with the wiring upper box. The utility model discloses through the bolt installation on the upper portion of wiring lower box of wiring upper box, can make the fixed frame drive the plug -in frame and insert into the sealing frame, and through the mutual resistance of plug -in frame and second sealing ring, can effectively increase the sealing between wiring lower box and wiring upper box, avoid the rusting short -circuit of inside wiring head, through the mounting hole plate cover setting on the surface of connecting stud, can be positioned through the limiting nut, the dry agent bag is placed in the placing frame conveniently, after wiring upper box installation, can keep the inside dry of wiring lower box and wiring upper box through the dry agent bag, improve the moisture -proof effect of wiring lower box and wiring upper box, through the mounting hole plate is detachable type design, can conveniently replace the dry agent bag.

Description

Technical Field

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

[0002] A photovoltaic module junction box is a connecting device between a solar cell array composed of solar cell modules and a solar charging control device. Its main function is to connect and protect the solar photovoltaic modules, connect the power generated by the solar cells to external lines, and conduct the current generated by the photovoltaic modules.

[0003] Currently, photovoltaic module junction boxes are installed by directly snapping the upper and lower covers together. However, gaps remain after the upper and lower covers are snapped together. Since photovoltaic module junction boxes are mostly installed outdoors, moisture can easily enter the junction box through these gaps, causing corrosion and rust on the connectors. To address this issue, we propose a photovoltaic module junction box sealing mechanism. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the current photovoltaic module junction box, the upper and lower covers are directly snapped together during use. However, after the upper and lower covers are snapped together, there will be gaps. Since photovoltaic module junction boxes are mostly installed outdoors, moisture can easily enter the junction box through the gaps, causing corrosion and rust to the joints. Therefore, a sealing mechanism for photovoltaic module junction boxes is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A photovoltaic module junction box sealing mechanism includes a lower junction box, a junction port installed on the side of the lower junction box, an upper junction box installed above the lower junction box, a sealing mechanism fixedly connected to the inner walls of the lower junction box and the upper junction box, and a drying mechanism installed on the surface of the sealing mechanism located on the inner wall of the upper junction box.

[0007] Preferably, the sealing mechanism includes a sealing frame, a sealing frame is fixedly connected to the upper part of the inner wall of the lower junction box, a fixing frame is fixedly connected to the lower part of the inner wall of the upper junction box, and a plug-in frame is fixedly connected to the lower part of the fixing frame.

[0008] Preferably, a first sealing ring is glued to the inner wall of the sealing frame, and a second sealing ring is glued to the lower end face of the insertion frame.

[0009] Preferably, the sealing frame, fixing frame and plug-in frame are all rectangular frames, and the cross-section of the sealing frame is L-shaped.

[0010] Preferably, the drying mechanism includes a connecting stud, the lower surface of the fixing frame is fixedly connected to the connecting stud, and the surface of the connecting stud is fitted with a mounting plate through a limiting nut. The upper surface of the mounting plate is fixedly connected to a placement frame, and a desiccant pack is placed inside the placement frame.

[0011] Preferably, the placement frame is a rectangular frame, and the upper surface of the placement frame abuts against the inner wall of the junction box.

[0012] Preferably, the mounting plate has densely packed through holes inside.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This device is installed above the lower junction box via bolts through the upper junction box. The fixed frame can drive the plug frame to insert into the sealing frame. The plug frame and the second sealing ring abut against each other, which can effectively increase the sealing between the lower junction box and the upper junction box and prevent the internal wiring hair from rusting and short-circuiting.

[0015] 2. This device uses a mounting plate fitted onto the surface of the connecting stud, which can be limited by a limiting nut, to facilitate the placement of the desiccant pack within the placement frame. After the top junction box is installed, the desiccant pack helps keep the inside of the bottom junction box and the top junction box dry, improving their moisture-proof effect. The mounting plate is detachable, allowing for easy replacement of the desiccant pack. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a photovoltaic module junction box sealing mechanism proposed in this utility model;

[0017] Figure 2 for Figure 1 A three-dimensional cross-sectional schematic diagram of the junction box and the upper junction box in the diagram;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 4 for Figure 1 An exploded 3D diagram of the fixed frame and mounting hole plate structure.

[0020] In the diagram: 1. Lower junction box; 2. Junction port; 3. Upper junction box;

[0021] 4. Sealing mechanism; 41. Sealing frame; 42. First sealing ring; 43. Fixing frame; 44. Insertion frame; 45. Second sealing ring;

[0022] 5. Drying mechanism; 51. Connecting stud; 52. Limiting nut; 53. Mounting plate; 54. Placement frame; 55. Desiccant pack. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4 A photovoltaic module junction box sealing mechanism includes a lower junction box 1, a junction port 2 installed on the side of the lower junction box 1, an upper junction box 3 installed above the lower junction box 1, a sealing mechanism 4 fixedly connected to the inner walls of the lower junction box 1 and the upper junction box 3, and a drying mechanism 5 installed on the surface of the sealing mechanism 4 located on the inner wall of the upper junction box 3. The sealing mechanism 4 can increase the sealing between the lower junction box 1 and the upper junction box 3.

[0025] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the sealing mechanism 4 includes a sealing frame 41. The sealing frame 41 is fixedly connected to the upper part of the inner wall of the lower junction box 1, and a fixed frame 43 is fixedly connected to the lower part of the inner wall of the upper junction box 3. A plug-in frame 44 is fixedly connected to the lower part of the fixed frame 43. By interlocking the lower junction box 1 and the upper junction box 3, the fixed frame 43 can drive the plug-in frame 44 to be inserted into the sealing frame 41, which facilitates sealing between the lower junction box 1 and the upper junction box 3.

[0026] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the inner wall of the sealing frame 41 is glued with a first sealing ring 42, and the lower end face of the insertion frame 44 is glued with a second sealing ring 45. The sealing effect can be increased by the mutual contact between the first sealing ring 42 and the second sealing ring 45.

[0027] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the sealing frame 41, the fixing frame 43 and the plug-in frame 44 are all set as rectangular frames, and the cross section of the sealing frame 41 is set as L-shaped. Since the sealing frame 41, the fixing frame 43 and the plug-in frame 44 are all set as rectangular frames, they can form an annular seal. Since the cross section of the sealing frame 41 is L-shaped, the plug-in frame 44 can be easily inserted into it.

[0028] Furthermore, refer to Figure 3 and Figure 4It can be seen that the drying mechanism 5 includes connecting studs 51. The lower surface of the fixing frame 43 is fixedly connected to the connecting studs 51, and the surface of the connecting studs 51 is fitted with a mounting plate 53 by a limiting nut 52. The limiting nut 52 is threaded onto the surface of the connecting studs 51, which can limit the installation of the mounting plate 53. Four sets of connecting studs 51 are fixedly installed on the surface of the mounting plate 53. The four sets of connecting studs 51 are inserted into the mounting plate 53 to maintain the stability of the mounting plate 53 during installation. The upper surface of the mounting plate 53 is fixedly connected to a placement frame 54, and a desiccant pack 55 is placed in the placement frame 54. The mounting plate 53 allows the placement frame 54 and the desiccant pack 55 to be placed in the junction box 3. The desiccant pack 55 can keep the junction box 1 and the junction box 3 dry. The desiccant pack 55 contains montmorillonite desiccant.

[0029] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the placement frame 54 is set as a rectangular frame, and the upper end of the placement frame 54 abuts against the inner wall of the junction box 3. By the upper end of the placement frame 54 abutting against the inner wall of the junction box 3, the function of the desiccant pack 55 can be conveniently limited. At the same time, the placement frame 54 is an open design, which can facilitate the removal and placement of the desiccant pack 55.

[0030] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the mounting plate 53 has dense through holes inside. Through the dense through holes inside the mounting plate 53, the desiccant pack 55 can adsorb water vapor in the junction box 1 and junction box 3 through the dense through holes.

[0031] Working principle: When this utility model is in use, when the junction box 1 is in use, according to the attached... Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 By passing the connecting wire through the terminal 2, wiring can be done inside the junction box 1. At this time, the desiccant pack 55 is placed in the placement frame 54, which allows the mounting plate 53 to drive the placement frame 54 into the fixing frame 43, and the mounting plate 53 to be fitted onto the surface of the connecting stud 51. The mounting plate 53 can be installed by the limit nut 52. Then, the junction box 3 is connected to the junction box 1, which allows the fixing frame 43 to drive the plug frame 44 and the second sealing ring 45 to be inserted into the sealing frame 41, and the second sealing ring 45 to abut against the first sealing ring 42, which can seal the inside of the junction box 1 and the junction box 3. The desiccant pack 55 can keep the inside of the junction box 1 and the junction box 3 dry.

[0032] The above is the complete working principle of this utility model.

[0033] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0034] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0035] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A photovoltaic module junction box sealing mechanism, comprising a junction box (1), characterized in that, A wiring port (2) is installed on the side of the lower junction box (1), and an upper junction box (3) is installed above the lower junction box (1). A sealing mechanism (4) is fixedly connected to the inner walls of the lower junction box (1) and the upper junction box (3). A drying mechanism (5) is installed on the surface of the sealing mechanism (4) located on the inner wall of the upper junction box (3).

2. The photovoltaic module junction box sealing mechanism according to claim 1, characterized in that, The sealing mechanism (4) includes a sealing frame (41), the sealing frame (41) is fixedly connected to the upper part of the inner wall of the lower junction box (1), the fixing frame (43) is fixedly connected to the lower part of the inner wall of the upper junction box (3), and the plug-in frame (44) is fixedly connected to the lower part of the fixing frame (43).

3. The photovoltaic module junction box sealing mechanism according to claim 2, characterized in that, The inner wall of the sealing frame (41) is glued with a first sealing ring (42), and the bottom of the end face of the plug frame (44) is glued with a second sealing ring (45).

4. The photovoltaic module junction box sealing mechanism according to claim 2, characterized in that, The sealing frame (41), the fixing frame (43) and the plug-in frame (44) are all set as rectangular frames, and the cross section of the sealing frame (41) is set as L-shaped.

5. A photovoltaic module junction box sealing mechanism according to claim 2, characterized in that, The drying mechanism (5) includes a connecting stud (51). The lower surface of the fixed frame (43) is fixedly connected to the connecting stud (51), and the surface of the connecting stud (51) is fitted with a mounting plate (53) by a limiting nut (52). The upper surface of the mounting plate (53) is fixedly connected to a placement frame (54), and a desiccant pack (55) is placed inside the placement frame (54).

6. A photovoltaic module junction box sealing mechanism according to claim 5, characterized in that, The placement frame (54) is set as a rectangular frame, and the upper end face of the placement frame (54) abuts against the inner wall of the junction box (3).

7. A photovoltaic module junction box sealing mechanism according to claim 5, characterized in that, The mounting plate (53) has densely packed through holes inside.

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