Photovoltaic junction box

Abstract

The utility model belongs to the technical field of junction boxes, and discloses a photovoltaic junction box which comprises a box body and a box cover, a fixing assembly is installed on the inner wall of the top of the box cover, a first inner threaded pipe is fixed to the inner wall of the bottom of the box body, outer threaded pipes are connected to the inner walls of the two sides of the box body, and inner sealing assemblies are movably installed on the outer walls of the two sides of the first inner threaded pipe. The two outer threaded pipes are both in threaded connection with outer sealing assemblies. In the application, the box cover is fixed on the box body, and the two inner sealing assemblies are pushed towards the two outer threaded pipes respectively, so that one ends of the two inner sealing assemblies are clamped into the ends, facing the inside of the box body, of the two outer threaded pipes respectively, and one ends of the two outer threaded pipes are sealed, and the two outer sealing assemblies can be screwed to the ends, facing the outside of the box body, of the outer threaded pipes respectively; and the other ends of the two external threaded pipes are sealed, so that the two ends of the external threaded pipes are sealed, and the sealing performance between the connecting line and the external threaded pipes is effectively improved.

Description

Technical Field

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

[0002] A junction box is a device used for electrical connections. In different electrical systems, it serves to connect wires, centralize wiring, and protect electrical connection points. Currently, the sealing of the junction box inlet is mainly achieved by screwing a protective cover onto the outside of the inlet. Since photovoltaic junction boxes are installed outdoors, the internal sealing is particularly important, and the sealing performance of current junction boxes needs improvement. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a photovoltaic junction box.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a photovoltaic junction box, including a box body and a box cover, wherein a fixing component is installed on the inner wall of the top of the box cover, and a first internal threaded tube is fixed on the inner wall of the bottom of the box body, external threaded tubes are connected to the inner walls of both sides of the box body, and internal sealing components are movably installed on the outer walls of both sides of the first internal threaded tube, external sealing components are screwed onto the two external threaded tubes, and a connecting seal is fixed on the outer wall of the bottom of the box cover, and a connecting groove is opened on the outer wall of the top of the box body.

[0005] By adopting the above technical solution, two connecting wires can be connected by extending into the box body from the two external threaded tubes respectively. Then, the box cover is placed on the box body and rotated, so that the fixing component is screwed into the first internal threaded tube, fixing the box cover to the box body. At this time, the connecting seal will be inserted into the connecting groove to seal the connection between the box body and the box cover. At the same time, the fixing component screwed into the first internal threaded tube will push the two internal sealing components towards the two external threaded tubes respectively, so that one end of the two internal sealing components is respectively engaged with the end of the two external threaded tubes facing into the box body, sealing one end of the two external threaded tubes. The two external sealing components can be screwed onto the end of the external threaded tubes facing out of the box body respectively to seal the other end of the two external threaded tubes, thus achieving sealing at both ends of the external threaded tubes and effectively improving the sealing performance between the connecting wires and the external threaded tubes.

[0006] Furthermore, the fixing component includes a threaded post and a stop block mounted on the bottom of the threaded post.

[0007] By adopting the above technical solution, the threaded column can be screwed into the first internal threaded tube, while simultaneously causing the stop block to descend.

[0008] Furthermore, the inner sealing assembly includes a movable rod, a ring fixed to one end of the movable rod, and a rubber ring fixed to the outer wall of one side of the ring.

[0009] By adopting the above technical solution, during the descent of the block, the two movable rods can be pushed outward towards the first internal threaded tube, thereby causing the two rubber rings to move away from each other, so that the two rubber rings are respectively inserted into the two external threaded tubes at one end facing the box body, sealing one end of the two external threaded tubes.

[0010] Furthermore, the external sealing assembly includes a second internally threaded tube and a sealing ring fixed to the inner wall of one side of the second internally threaded tube.

[0011] By adopting the above technical solution, the second internally threaded tube can be screwed onto the externally threaded tube, and the sealing ring can seal the externally threaded tube at the end facing out of the box.

[0012] Furthermore, the connecting seal includes a connecting ring and a sealing gasket fixed to the outer wall of the connecting ring.

[0013] By adopting the above technical solution, the lid is fixed to the box body, and the connecting ring and sealing gasket can be inserted into the connecting groove.

[0014] Furthermore, the outer wall of the box cover is fixed with multiple equidistant anti-slip plates.

[0015] By adopting the above technical solution, it is convenient to rotate the box lid.

[0016] In summary, this utility model has the following beneficial effects:

[0017] In this application, the cover is fixed to the box body, which pushes the two inner sealing components toward the two external threaded tubes respectively, so that one end of the two inner sealing components is respectively engaged with the two external threaded tubes at the end facing into the box body, sealing one end of the two external threaded tubes. The two outer sealing components are respectively screwed to the end of the external threaded tubes facing out of the box body, sealing the other end of the two external threaded tubes, thus achieving sealing at both ends of the external threaded tubes and effectively improving the sealing performance between the connecting wire and the external threaded tubes. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the fixing component structure according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the internal sealing component structure according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the external sealing assembly structure according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the box structure according to an embodiment of the present utility model.

[0023] In the diagram: 1. Box body; 2. Box cover; 3. Fixing component; 301. Threaded post; 302. Abutment; 4. First internal threaded tube; 5. External threaded tube; 6. Internal sealing component; 601. Movable rod; 602. Ring; 603. Rubber ring; 7. External sealing component; 701. Second internal threaded tube; 702. Sealing ring; 8. Connecting seal; 801. Connecting ring; 802. Sealing gasket; 9. Connecting groove; 10. Anti-slip plate; 11. Connecting wire. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] like Figure 1-5 As shown in the figure, this application discloses a photovoltaic junction box, including a box body 1 and a box cover 2. A fixing component 3 is installed on the inner wall of the top of the box cover 2. The fixing component 3 includes a threaded post 301 and a stop block 302 installed at the bottom of the threaded post 301. A first internal threaded tube 4 is fixed on the inner wall of the bottom of the box body 1. The threaded post 301 can be screwed into the first internal threaded tube 4, and at the same time, it drives the stop block 302 to descend.

[0026] Both sides of the inner wall of the box body 1 are connected to external threaded tubes 5, and both sides of the outer wall of the first internal threaded tube 4 are movably installed with internal sealing components 6. The internal sealing components 6 include a movable rod 601, a ring 602 fixed to one end of the movable rod 601, and a rubber ring 603 fixed to one side of the outer wall of the ring 602. During the descent of the block 302, the two movable rods 601 can be pushed outward towards the first internal threaded tube 4, thereby causing the two rubber rings 603 to move away from each other, so that the two rubber rings 603 are respectively inserted into the two external threaded tubes 5 at the inner end of the box body 1, sealing one end of the two external threaded tubes 5.

[0027] An external sealing assembly 7 is screwed onto each of the two external threaded tubes 5. The external sealing assembly 7 includes a second internal threaded tube 701 and a sealing ring 702 fixed on the inner wall of one side of the second internal threaded tube 701. The second internal threaded tube 701 can be screwed onto the external threaded tube 5, and the sealing ring 702 seals the outer end of the external threaded tube 5 toward the box body 1.

[0028] In this embodiment, a connecting groove 9 is opened on the top outer wall of the box body 1, and a connecting seal 8 is fixed on the bottom outer wall of the box cover 2. The connecting seal 8 includes a connecting ring 801 and a sealing gasket 802 fixed on the outer wall of the connecting ring 801. The box cover 2 is fixed on the box body 1, and the connecting ring 801 and the sealing gasket 802 can be inserted into the connecting groove 9.

[0029] In use, the two connecting wires 11 can be inserted into the box body 1 from the two external threaded tubes 5 respectively and connected. Then, the box cover 2 is placed on the box body 1 and rotated so that the fixing component 3 is screwed into the first internal threaded tube 4, fixing the box cover 2 on the box body 1. At this time, the connecting seal 8 will be inserted into the connecting groove 9 to seal the connection between the box body 1 and the box cover 2. At the same time, the fixing component 3 being screwed into the first internal threaded tube 4 will push the two internal sealing components 6 towards the two external threaded tubes 5 respectively, so that one end of the two internal sealing components 6 is respectively inserted into the two external threaded tubes 5 facing the box body 1, sealing one end of the two external threaded tubes 5. The two external sealing components 7 can be screwed onto the external threaded tubes 5 facing the box body 1 respectively to seal the other end of the two external threaded tubes 5, thus achieving sealing at both ends of the external threaded tubes 5 and effectively improving the sealing performance between the connecting wire 11 and the external threaded tubes 5.

[0030] The operating principle of a photovoltaic junction box in this embodiment is as follows:

[0031] Two connecting wires 11 can be inserted into the box body 1 from the two external threaded tubes 5 respectively and connected. Then, the box cover 2 is placed on the box body 1 and rotated. The threaded post 301 can be screwed into the first internal threaded tube 4 to fix the box cover 2 on the box body 1. The connecting ring 801 and the sealing gasket 802 can be inserted into the connecting groove 9 to seal the connection between the box body 1 and the box cover 2. During the process of screwing the threaded post 301 into the first internal threaded tube 4, the abutment block 302 can be driven to descend.

[0032] During the descent of the stop block 302, the two movable rods 601 can be pushed outward toward the first internal threaded tube 4, thereby causing the two rubber rings 603 to move away from each other. This allows the two rubber rings 603 to respectively engage with the inner ends of the two external threaded tubes 5 toward the box body 1, sealing one end of the two external threaded tubes 5. The two second internal threaded tubes 701 can be screwed onto the outer ends of the two external threaded tubes 5 toward the box body 1, and the two sealing rings 702 respectively seal the outer ends of the two external threaded tubes 5 toward the box body 1, thus achieving sealing at both ends of the external threaded tubes 5 and effectively improving the sealing performance between the connecting line 11 and the external threaded tubes 5.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A photovoltaic junction box, comprising a box body (1) and a box cover (2), characterized in that: The top inner wall of the box cover (2) is equipped with a fixing component (3), and the bottom inner wall of the box body (1) is fixed with a first internal threaded tube (4). The inner walls on both sides of the box body (1) are connected with external threaded tubes (5), and the outer walls on both sides of the first internal threaded tube (4) are movably equipped with an inner sealing component (6). The two external threaded tubes (5) are screwed with an external sealing component (7), and the bottom outer wall of the box cover (2) is fixed with a connecting seal (8). The top outer wall of the box body (1) has a connecting groove (9).

2. A photovoltaic junction box according to claim 1, characterized in that: The fixing component (3) includes a threaded post (301) and an abutment (302) mounted on the bottom of the threaded post (301).

3. A photovoltaic junction box according to claim 1, characterized in that: The inner sealing assembly (6) includes a movable rod (601), a ring (602) fixed to one end of the movable rod (601), and a rubber ring (603) fixed to the outer wall of one side of the ring (602).

4. A photovoltaic junction box according to claim 1, characterized in that: The external sealing assembly (7) includes a second internal threaded tube (701) and a sealing ring (702) fixed to the inner wall of one side of the second internal threaded tube (701).

5. A photovoltaic junction box according to claim 1, characterized in that: The connecting seal (8) includes a connecting ring (801) and a sealing gasket (802) fixed to the outer wall of the connecting ring (801).

6. A photovoltaic junction box according to claim 1, characterized in that: The outer wall of the box cover (2) is fixed with multiple anti-slip plates (10) that are evenly distributed.

7. A photovoltaic junction box according to claim 3, characterized in that: The first internally threaded tube (4) has fixed openings on both sides of its outer wall, and two movable rods (601) pass through the inner walls of the two fixed openings.

8. A photovoltaic junction box according to claim 3, characterized in that: The movable rod (601) has an "L" shaped structure.

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