Modularized solar module junction box
The modular design of the movable blocks and elastic mechanism solves the problem of the solar junction box breaking due to the snap-fit, achieving a stable connection between the bottom box and the top cover, and ensuring the normal use of the junction box.
Patent Information
- Application Number
- CN202423127076.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The clips and latches of existing solar junction boxes are prone to breaking due to excessive force, causing the bottom box and top cover to fail to connect, thus affecting normal use.
The modular design utilizes movable blocks, elastic mechanisms, and limiting groove structures to allow the movable blocks to slide within the limiting grooves. The spring force ensures a stable connection between the bottom box and the top cover, preventing the buckles or blocks from breaking apart.
This ensures the normal use of the solar junction box, prevents connection failures caused by the disconnection of clips or blocks, and improves the stability and reliability of the connection.
Smart Images

Figure CN223625833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solar junction box technology, and in particular to a modular solar module junction box. Background Technology
[0002] A solar junction box is an important component of a solar photovoltaic system, used to connect solar panels to other electrical equipment. Its main function is to connect the power generated by the solar cells to external wiring. The junction box is bonded to the back sheet of the module with silicone. The leads inside the module are connected to the internal wiring inside the junction box, which in turn connects to the external cables, enabling the module to conduct electricity with the external cables. The junction box contains diodes to ensure that the module can work normally when it is blocked from sunlight.
[0003] Existing solar junction boxes consist of a base box and a top cover, which are connected by snap-fit fasteners and latches. Since the snap-fit fasteners and latches are made of plastic, they are prone to breaking when excessive force is applied, preventing the base box and top cover from being properly connected and thus affecting the normal use of the solar junction box. Therefore, we propose a modular solar module junction box to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a modular solar module junction box to solve the aforementioned problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A modular solar module junction box includes a base box and a top cover. The top cover is inserted into the base box. The top cover has multiple slots, and the base box has multiple through slots. Movable blocks are movably installed in each of the through slots, with one end of each movable block inserted into a corresponding slot. Two boxes are fixedly installed on the base box, and two limiting slots are provided between the boxes and the base box. The limiting slots are equipped with elastic mechanisms for the movable blocks. A common connecting plate is fixedly installed between two corresponding movable blocks. A side plate is fixedly installed on one side of the connecting plate. The base box contains a modular mechanism, and the base box has a wiring mechanism for the modular mechanism.
[0007] Preferably, multiple through slots are located on both sides of the bottom box, and the two corresponding through slots are symmetrically arranged, so that the two sets of movable blocks can be inserted into the corresponding box slots from two directions through the corresponding through slots.
[0008] Preferably, the two limiting grooves are symmetrically arranged, and the limiting grooves are convex in shape to facilitate the sliding of the limiting block within the limiting grooves.
[0009] Preferably, the elastic mechanism includes a limiting block and a spring. The limiting block is movably installed in the limiting groove. The limiting block and the corresponding movable block are fixedly connected. One end of the spring is fixedly installed on one side of the limiting block, and the other end of the spring is fixedly installed on the inner wall of one side of the limiting groove. The elastic mechanism limits and adjusts the movement of the corresponding movable block.
[0010] Preferably, the box plate has a side groove, which is adapted to the side plate to facilitate the side plate moving in the direction of the side groove.
[0011] Preferably, the modular mechanism includes a gasket module and a diode module. The gasket module is provided on the bottom inner wall of the base box, and the diode module is welded onto the gasket module.
[0012] Preferably, the wiring mechanism includes wire sleeves, and two wire sleeves are provided on the base box. Each wire sleeve is provided with a cable, and one end of each cable extends into the base box and connects to the modular mechanism, so that the modular mechanism can be connected to external wires through the wiring mechanism.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This modular solar module junction box, by adjusting the two side plates outward, causes the two connecting plates to drive the corresponding two sets of movable blocks away from each other, thereby allowing multiple limiting blocks to slide in the corresponding limiting grooves. This causes multiple springs to be stressed and deformed, thus retracting the multiple movable blocks into the bottom box. Afterward, the installer inserts the top cover into the bottom box, and by loosening the two side plates, the multiple movable blocks are inserted into the corresponding box grooves under the elastic force of the multiple springs, thereby connecting the bottom box and the top cover. This avoids the situation where the bottom box and the top cover cannot be connected due to the breakage of the buckle or the block, ensuring the normal use of the solar junction box. Attached Figure Description
[0014] Figure 1 This is a three-dimensional partial cross-sectional structural schematic diagram of the present invention;
[0015] Figure 2 This utility model Figure 1 A schematic diagram of the structure of part A;
[0016] Figure 3 This is a structural schematic diagram of the present invention from an exploded perspective;
[0017] Figure 4 This utility model Figure 3 A schematic diagram of the structure of part B.
[0018] In the diagram: 1. Base box; 2. Top cover; 3. Box groove; 4. Through groove; 5. Movable block; 6. Box plate; 7. Limiting groove; 8. Limiting block; 9. Spring; 10. Connecting plate; 11. Side plate; 12. Side groove; 13. Gasket module; 14. Diode module; 15. Wire sleeve; 16. Cable. Detailed Implementation
[0019] 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.
[0020] Example: Refer to Figure 1-4 A modular solar module junction box includes a base box 1 and a top cover 2. The top cover 2 is inserted into the base box 1. Multiple slots 3 are formed on the top cover 2. Multiple through slots 4 are formed on the base box 1. Movable blocks 5 are movably installed in each of the through slots 4. One end of each movable block 5 is inserted into a corresponding slot 3. Two box plates 6 are fixedly installed on the base box 1. Two limiting slots 7 are formed between the box plates 6 and the base box 1. A spring mechanism for the movable blocks 5 is provided in the limiting slots 7. The spring mechanism includes a limiting block 8 and a spring 9. The limiting block 8 is movably installed in the limiting slots 7, and the limiting block 8 and the corresponding movable block 5 are fixedly connected. One end of the spring 9 is fixedly installed on one side of the limiting block 8, and the other end of the spring 9 is fixedly installed in one side of the limiting slot 7. The inner side wall is used to limit and adjust the movement of the corresponding movable blocks 5 through a spring mechanism; the same connecting plate 10 is fixedly installed between the two corresponding movable blocks 5, and a side plate 11 is fixedly installed on one side of the connecting plate 10. The bottom box 1 is equipped with a modular mechanism, which includes a gasket module 13 and a diode module 14. The bottom inner wall of the bottom box 1 is provided with a gasket module 13, and a diode module 14 is welded on the gasket module 13; the bottom box 1 is provided with a wiring mechanism for the modular mechanism, which includes a wire sleeve 15. The bottom box 1 is provided with two wire sleeves 15, and each wire sleeve 15 is provided with a cable 16. One end of each cable 16 extends into the bottom box 1 and connects to the modular mechanism, so that the modular mechanism can be connected to external wires through the wiring mechanism.
[0021] Furthermore, multiple through slots 4 are located on both sides of the bottom box 1, and the corresponding two through slots 4 are symmetrically arranged, which facilitates the insertion of two sets of movable blocks 5 into the corresponding box slots 3 from two directions through the corresponding through slots 4.
[0022] Furthermore, the two limiting grooves 7 are symmetrically arranged, and the limiting grooves 7 are convex in shape, which facilitates the sliding of the limiting block 8 within the limiting grooves 7.
[0023] Furthermore, a side groove 12 is provided on the box plate 6, which is adapted to the side plate 11 to facilitate the side plate 11 to move in the direction of the side groove 12.
[0024] In use: The installer adjusts the two side plates 11 outwards, causing the two connecting plates 10 to move the corresponding two sets of movable blocks 5 away from each other. This causes the multiple limiting blocks 8 to slide in the corresponding limiting grooves 7, causing the multiple springs 9 to deform and stretch. This causes the multiple movable blocks 5 to retract into the bottom box 1. Then, the installer inserts the top cover 2 into the bottom box 1. By loosening the two side plates 11, the multiple movable blocks 5 are inserted into the corresponding box grooves 3 under the elastic force of the multiple springs 9. This connects the bottom box 1 and the top cover 2, preventing the bottom box 1 and the top cover 2 from not being able to connect due to the breakage of the buckles or blocks, thus ensuring the normal use of the solar junction box.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modular solar module junction box, comprising a base box (1) and a top cover (2), characterized in that, The top cover (2) is inserted into the bottom box (1). The top cover (2) has multiple slots (3) and the bottom box (1) has multiple through slots (4). Each through slot (4) has a movable block (5) installed in it. One end of each movable block (5) is inserted into the corresponding slot (3). Two box plates (6) are fixedly installed on the bottom box (1). Two limiting slots (7) are opened between the box plates (6) and the bottom box (1). The limiting slots (7) have elastic mechanisms for the movable blocks (5). The same connecting plate (10) is fixedly installed between the two movable blocks (5). A side plate (11) is fixedly installed on one side of the connecting plate (10). The bottom box (1) has a modular mechanism and a connecting mechanism for the modular mechanism.
2. The modular solar module junction box according to claim 1, characterized in that, Multiple through slots (4) are located on both sides of the bottom box (1), and the corresponding two through slots (4) are symmetrically arranged.
3. A modular solar module junction box according to claim 1, characterized in that, The two limiting grooves (7) are symmetrically arranged, and the limiting grooves (7) are convex in shape.
4. A modular solar module junction box according to claim 1, characterized in that, The elastic mechanism includes a limiting block (8) and a spring (9). The limiting block (8) is movably installed in the limiting groove (7). The limiting block (8) and the corresponding movable block (5) are fixedly connected. One end of the spring (9) is fixedly installed on one side of the limiting block (8), and the other end of the spring (9) is fixedly installed on the inner wall of one side of the limiting groove (7).
5. A modular solar module junction box according to claim 1, characterized in that, The box plate (6) is provided with a side groove (12), which is compatible with the side plate (11).
6. A modular solar module junction box according to claim 1, characterized in that, The modular mechanism includes a gasket module (13) and a diode module (14). The gasket module (13) is provided on the bottom inner wall of the bottom box (1), and the diode module (14) is welded on the gasket module (13).
7. A modular solar module junction box according to claim 6, characterized in that, The wiring mechanism includes a wire sleeve (15), and two wire sleeves (15) are provided on the bottom box (1). Each wire sleeve (15) is provided with a cable (16), and one end of each cable (16) extends into the bottom box (1) and connects to the modular mechanism.