Conflux box device for photovoltaic power generation system

Abstract

The utility model discloses a combiner box device for a photovoltaic power generation system, which comprises a combiner box body, and a connecting plate is fixedly mounted on the outer side of the combiner box body. The U-shaped support can directly drill holes in a wall body, then a bolt penetrates through the external connecting plate to be fastened in the wall body, so that the U-shaped support can be fixed to the outer side of the wall body, then a worker can directly conduct pre-drilling on the wall body through a drill bit penetrating through the square plate, and the distance between the connecting plates does not need to be measured; then the combiner box body is directly placed at the top position of the U-shaped support from top to bottom, so that the connecting plate can be inserted into the limiting groove, the positioning work of the bottom position of the combiner box body is completed, and then a worker can directly penetrate through a square plate and the connecting plate through bolts and fasten the square plate and the connecting plate into the wall body; according to the structure, the position of the combiner box body is effectively fixed, the structure is easy to operate, the position of the combiner box body and the distance between the round holes can be positioned in advance, and therefore the installation work efficiency of workers is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic power generation, specifically to a combiner box device for a photovoltaic power generation system. Background Technology

[0002] In a photovoltaic (PV) power generation system, the combiner box is a wiring device that ensures the orderly connection of PV modules and the function of current collection. Users can connect a certain number of PV cells of the same specifications in series to form PV arrays, and then connect several PV arrays in parallel to the PV combiner box. After current collection in the PV combiner box, it is used in conjunction with a controller, DC distribution cabinet, PV inverter and AC distribution cabinet to form a complete PV power generation system, realizing grid connection with the mains power. This device can ensure that the PV system can be easily disconnected during maintenance and inspection, and reduce the scope of power outages when the PV system fails.

[0003] Currently, there are some problems with the installation of combiner boxes on the market. Existing methods involve measuring the spacing between the round holes on the connecting plate on the outside of the combiner box, drilling holes in the wall, and then placing the combiner box on the outside of the wall. The bolts are only inserted into the wall holes after repeated adjustments to the combiner box's position. This process cannot directly drill holes in the outside of the wall, requires repeated adjustments to the combiner box, and does not provide proper positioning, resulting in slow overall installation progress. Therefore, we propose a combiner box device for photovoltaic power generation systems to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a combiner box device for a photovoltaic power generation system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combiner box device for a photovoltaic power generation system, comprising a combiner box body, a connecting plate fixedly installed on the outer side of the combiner box body, a U-shaped bracket abutting the bottom end of the combiner box body, an external connecting plate fixedly installed on the outer side of the U-shaped bracket, a square plate fixedly installed on the top of the U-shaped bracket, a limiting groove and a discharge port respectively opened on the outer side of the square plate, a connecting plate inserted inside the limiting groove, a sealing frame plate sleeved on the outer side of the combiner box body, an inclined support rod and a long support rod fixedly installed on the outer side of the sealing frame plate, the other end of the inclined support rod fixedly connected to the outer side of the long support rod, one end of the long support rod inserted into the interior of a threaded cylinder, the threaded cylinder fixedly installed on the outer side of the square plate, an annular plate abutting the outer side of the threaded cylinder, the annular plate fixedly installed on the outer side of the long support rod, a nut sleeved on the outer side of the long support rod, the nut engaging with the outer side of the threaded cylinder.

[0006] As a further preferred embodiment of this technical solution, a groove is provided at the top center of the U-shaped bracket, and a spirit level is fixedly installed inside the groove.

[0007] As a further preferred embodiment of this technical solution, a reinforcing rod is fixedly installed on the outer side of the square plate, and the other end of the reinforcing rod is fixedly disposed on the outer side of the U-shaped bracket.

[0008] As a further preferred embodiment of this technical solution, the outer side of the nut is provided with anti-slip texture, which is evenly distributed on the outer side of the nut.

[0009] As a further preferred embodiment of this technical solution, the nut is sleeved on the outer side of the annular plate, and the thread connecting the nut and the threaded cylinder is a fine-pitch thread.

[0010] As a further preferred embodiment of this technical solution, the connecting plate can slide inside the limiting groove, and the connecting plate and the U-shaped bracket have the same thickness.

[0011] As a further preferred embodiment of this technical solution, the discharge port is located below the connecting plate, and the width of the discharge port is greater than the diameter of the circular hole on the connecting plate.

[0012] This utility model provides a combiner box device for a photovoltaic power generation system, which has the following beneficial effects:

[0013] This invention allows for direct drilling into the wall, followed by bolting through the outer plate and securing it to the wall, thus fixing the U-shaped bracket to the outside of the wall. Personnel can then pre-drill holes in the wall by passing a drill bit through the square plate, eliminating the need to measure the spacing between the connecting plates. The junction box is then placed directly at the top of the U-shaped bracket from top to bottom, allowing the connecting plate to be inserted into the limiting groove, thereby positioning the bottom of the junction box. Personnel can then directly bolt through the square plate and connecting plate to secure it to the wall, effectively fixing the junction box in place. This structure is simple to operate and allows for pre-positioning of the junction box and the spacing between the holes, improving installation efficiency. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a bottom view of the structure of the U-shaped bracket of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram of A in the middle;

[0017] Figure 4 This is a right-side view of the structure of the threaded cylinder and nut of this utility model.

[0018] In the diagram: 1. Manifold housing; 2. Connecting plate; 3. U-shaped bracket; 4. External plate; 5. Square plate; 6. Limiting groove; 7. Discharge port; 8. Sealing frame plate; 9. Diagonal support rod; 10. Long support rod; 11. Threaded cylinder; 12. Annular plate; 13. Nut; 14. Groove; 15. Spirit bubble; 16. Reinforcing rod; 17. Anti-slip texture. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This utility model provides a technical solution: such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the combiner box device for a photovoltaic power generation system includes a combiner box body 1. A connecting plate 2 is fixedly installed on the outer side of the combiner box body 1. A U-shaped bracket 3 abuts against the bottom of the combiner box body 1. An external connecting plate 4 is fixedly installed on the outer side of the U-shaped bracket 3. A square plate 5 is fixedly installed on the top of the U-shaped bracket 3. A limiting groove 6 and a discharge port 7 are respectively opened on the outer side of the square plate 5. The connecting plate 2 is inserted into the inside of the limiting groove 6. A sealing frame plate 8 is sleeved on the outer side of the combiner box body 1. An inclined support rod 9 and a long support rod 10 are fixedly installed on the outer side of the sealing frame plate 8. The other end of the inclined support rod 9 is fixedly connected to the outer side of the long support rod 10. One end of the long support rod 10 is inserted into the inside of a threaded cylinder 11. The threaded cylinder 11 is fixedly installed on the outer side of the square plate 5. An annular plate 12 abuts against the outer side of the threaded cylinder 11. The annular plate 12 is fixedly installed on the outer side of the long support rod 10. On the side, a nut 13 is sleeved on the outer side of the long support rod 10. The nut 13 is engaged with the outer side of the threaded cylinder 11. A hole is drilled directly into the wall, and then bolts are passed through the outer plate 4 and fastened to the inside of the wall, so that the U-shaped bracket 3 can be fixed to the outside of the wall. Then, the personnel can drill through the square plate 5 to pre-drill holes in the wall without measuring the distance between the connecting plates 2. Then, the junction box 1 is placed directly at the top position of the U-shaped bracket 3 from top to bottom, so that the connecting plate 2 can be inserted into the inside of the limiting groove 6, thereby completing the positioning work at the bottom position of the junction box 1. Then, the personnel can directly pass bolts through the inside of the square plate 5 and the connecting plate 2 respectively and fasten them to the inside of the wall to effectively fix the position of the junction box 1. This structure is simple to operate and can pre-position the position of the junction box 1 and the distance between the round holes, thereby improving the installation efficiency of the personnel.

[0021] like Figure 2As shown, a groove 14 is provided at the top center of the U-shaped bracket 3, and a spirit level 15 is fixedly installed inside the groove 14. The spirit level 15 facilitates the installation of the U-shaped bracket 3 in a horizontal position.

[0022] like Figure 3 As shown, a reinforcing rod 16 is fixedly installed on the outer side of the square plate 5. The other end of the reinforcing rod 16 is fixedly set on the outer side of the U-shaped bracket 3. The reinforcing rod 16 can strengthen the connection between the U-shaped bracket 3 and the square plate 5.

[0023] like Figure 4 As shown, the outer side of the nut 13 is provided with anti-slip texture 17. The anti-slip texture 17 is evenly distributed on the outer side of the nut 13. The anti-slip texture 17 facilitates the rotation and turning of the nut 13 by the operator.

[0024] like Figure 4 As shown, the nut 13 is sleeved on the outer side of the annular plate 12. The thread connecting the nut 13 and the threaded cylinder 11 is a fine thread. The fine thread has a self-locking function, thereby improving the fixation of the sealing frame plate 8.

[0025] like Figure 3 As shown, the connecting plate 2 can slide inside the limiting groove 6. The connecting plate 2 and the U-shaped bracket 3 have the same thickness, so that when the personnel place the manifold 1 on the top of the U-shaped bracket 3, the connecting plate 2 can be directly inserted into the limiting groove 6.

[0026] like Figure 3 As shown, the discharge port 7 is located below the connecting plate 2. The width of the discharge port 7 is greater than the diameter of the circular hole on the connecting plate 2. After the U-shaped bracket 3 is fixed to the wall, during the process of drilling holes in the wall again, the resulting fragments can fall to the ground from the discharge port 7.

[0027] This utility model provides a combiner box device for a photovoltaic power generation system, and its specific working principle is as follows:

[0028] In use, the device first requires drilling holes in the wall. Then, bolts are passed through the outer plate 4 to directly secure the U-shaped bracket 3 to the wall. The included spirit level 15 facilitates horizontal installation of the U-shaped bracket 3. Next, a drill bit is used to pre-drill holes in the wall through the square plate 5. During drilling, debris falls to the ground through the discharge port 7. The manifold 1 is then placed from top to bottom on the top of the U-shaped bracket 3, allowing the connecting plate 2 to be inserted into the limiting groove 6, thus completing the installation of the manifold 1. After positioning at the bottom, personnel can directly use bolts to pass through the inside of the square plate 5 and the connecting plate 2 respectively, and fasten them to the inside of the wall to effectively fix the position of the manifold 1. Subsequently, personnel will fit the sealing frame plate 8 onto the front of the manifold 1, that is, the sealing frame plate 8 is tightly attached to the door of the manifold 1. During this process, one end of the long support rod 10 is inserted into the inside of the threaded cylinder 11, and then connected to the outside of the threaded cylinder 11 by the nut 13, so that the annular plate 12 can be tightly attached to the outside of the threaded cylinder 11, thereby fixing the position of the sealing frame plate 8.

[0029] 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 combiner box device for a photovoltaic power generation system, characterized in that: The system includes a manifold housing (1), a connecting plate (2) fixedly installed on the outer side of the manifold housing (1), a U-shaped bracket (3) abutting the bottom end of the manifold housing (1), an external connecting plate (4) fixedly installed on the outer side of the U-shaped bracket (3), a square plate (5) fixedly installed on the top of the U-shaped bracket (3), a limiting groove (6) and a discharge port (7) respectively opened on the outer side of the square plate (5), a connecting plate (2) inserted into the limiting groove (6), a sealing frame plate (8) sleeved on the outer side of the manifold housing (1), and the outer side of the sealing frame plate (8) respectively fixed A diagonal support rod (9) and a long support rod (10) are fixedly provided. The other end of the diagonal support rod (9) is fixedly connected to the outside of the long support rod (10). One end of the long support rod (10) is inserted into the inside of the threaded cylinder (11). The threaded cylinder (11) is fixedly provided on the outside of the square plate (5). The outside of the threaded cylinder (11) abuts against an annular plate (12). The annular plate (12) is fixedly provided on the outside of the long support rod (10). A nut (13) is sleeved on the outside of the long support rod (10). The nut (13) is engaged with the outside of the threaded cylinder (11).

2. The combiner box device for a photovoltaic power generation system according to claim 1, characterized in that: A groove (14) is provided at the top center of the U-shaped bracket (3), and a spirit level (15) is fixedly installed inside the groove (14).

3. The combiner box device for a photovoltaic power generation system according to claim 1, characterized in that: A reinforcing rod (16) is fixedly installed on the outside of the square plate (5), and the other end of the reinforcing rod (16) is fixedly set on the outside of the U-shaped bracket (3).

4. The combiner box device for a photovoltaic power generation system according to claim 1, characterized in that: The outer side of the nut (13) is provided with anti-slip texture (17), which is evenly distributed on the outer side of the nut (13).

5. The combiner box device for a photovoltaic power generation system according to claim 1, characterized in that: The nut (13) is fitted onto the outer side of the annular plate (12), and the thread connecting the nut (13) and the threaded cylinder (11) is a fine thread.

6. The combiner box device for a photovoltaic power generation system according to claim 1, characterized in that: The connecting plate (2) can slide inside the limiting groove (6), and the connecting plate (2) and the U-shaped bracket (3) have the same thickness.

7. The combiner box device for a photovoltaic power generation system according to claim 1, characterized in that: The discharge port (7) is located below the connecting plate (2), and the width of the discharge port (7) is greater than the diameter of the circular hole on the connecting plate (2).

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