Photovoltaic junction box

Abstract

The utility model discloses a photovoltaic junction box, which relates to the field of photovoltaic junction boxes and comprises a photovoltaic junction box main body and a sealing cover arranged at the top end of the photovoltaic junction box main body, discharge metal strips are fixed on the outer wall of the photovoltaic junction box main body at equal intervals, and connecting rods are fixed on two sides of the bottom wall of the photovoltaic junction box main body. A wiring terminal is installed between the two connecting rods in a sleeved mode, installation grooves are symmetrically formed in the top ends of the side walls of the connecting rods, and positioning blocks abutting against the top ends of the wiring terminals are elastically inserted into the installation grooves. According to the utility model, the positioning block is extruded to be shrunk into the mounting groove, the wiring terminal is slidably inserted from the connecting rods through the connecting holes, the wiring terminal is inserted between the two connecting rods after being replaced, and the spring in the telescopic groove pushes the positioning block to be arranged at the top end of the wiring terminal in a protruding manner, so that the wiring terminal is kept fixed; and the convenience of maintenance, disassembly and assembly of the wiring terminal is improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic junction boxes, specifically a photovoltaic junction box. Background Technology

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

[0003] The heat generated during the use of photovoltaic junction boxes dissipates slowly, and heat easily accumulates inside. This can lead to damage to the terminals of the photovoltaic junction boxes after prolonged use. Since photovoltaic junction boxes are fixed to the wall and are difficult to disassemble, the maintenance efficiency of photovoltaic junction boxes is low. At the same time, friction during wiring can generate static electricity, resulting in poor safety of photovoltaic junction boxes. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a photovoltaic junction box to solve the technical problems of photovoltaic junction boxes being difficult to disassemble and reassemble due to being fixedly installed on the wall, resulting in low maintenance efficiency, and the generation of static electricity due to friction during wiring, leading to poor safety of the photovoltaic junction box.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic junction box, comprising a photovoltaic junction box body and a sealing cover installed on the top of the photovoltaic junction box body, wherein discharge metal strips are fixed at equal intervals on the outer wall of the photovoltaic junction box body, and connecting rods are fixed on both sides of the bottom wall of the photovoltaic junction box body, and a terminal is sleeved between the two connecting rods, wherein mounting grooves are symmetrically opened on the top of the side wall of the connecting rods, and a positioning block that abuts against the top of the terminal is elastically inserted into the mounting groove.

[0006] The present invention is further configured such that the top of the photovoltaic junction box body has screw holes arranged in a rectangular array, and the top of the sealing cover is fitted with a fastening bolt threaded into the screw holes.

[0007] The present invention is further configured such that fixed seats are symmetrically installed on the side walls of the photovoltaic junction box body, and wire input pipes are fixed at both ends of the photovoltaic junction box body.

[0008] The present invention is further configured such that a metal connecting part is embedded in the wire input tube, and a threaded fastening tube is installed in the wire input tube through the metal connecting part.

[0009] The present invention is further configured such that multiple wiring pressure plates are provided on both sides of the top surface of the terminal block, and a wiring bolt that abuts against the wiring pressure plate is threaded into the top of the terminal block.

[0010] The present invention is further configured such that both ends of the terminal block are provided with connection holes, and the connecting rod is inserted into the connection holes.

[0011] The present invention is further configured such that a spring is embedded in the mounting groove, and an anti-detachment part is fixed on the positioning block to abut against the inner wall of the mounting groove.

[0012] In summary, this utility model has the following advantages: By fixing connecting rods on both sides of the bottom wall of the photovoltaic junction box body, when maintaining or replacing the terminals, the squeezing positioning block retracts into the mounting groove, and the terminals slide through the connecting holes onto the connecting rods. After replacing the terminals, they are inserted between the two connecting rods. The spring in the telescopic groove pushes the positioning block to protrude at the top of the terminals, thus keeping the terminals fixed and improving the convenience of maintenance and disassembly of the terminals. Furthermore, by fixing discharge metal strips at equal intervals on the outer wall of the photovoltaic junction box body, static electricity is released through the discharge metal strips after installation, greatly reducing the impact of static electricity on the photovoltaic junction box body. Simultaneously, by threading the fastening bolts into the screw holes, the sealing cover is tightly connected to the protrusion at the top of the photovoltaic junction box body, improving the sealing performance of the photovoltaic junction box body installation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the photovoltaic junction box of this utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the main body of the photovoltaic junction box of this utility model;

[0016] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Photovoltaic junction box body; 2. Fixing base; 3. Wire input tube; 4. Sealing cover; 5. Fastening bolt; 6. Screw hole; 7. Threaded fastening tube; 8. Discharge metal strip; 9. Connecting rod; 10. Terminal block; 11. Wiring pressure plate; 12. Wiring bolt; 13. Mounting groove; 14. Spring; 15. Anti-detachment part; 16. Positioning block; 17. Connecting hole. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] A photovoltaic junction box, such as Figure 1-4 As shown, the photovoltaic junction box includes a main body 1 and a sealing cover 4 installed on the top of the main body 1. Discharge metal strips 8 are fixed at equal intervals on the outer wall of the main body 1, and connecting rods 9 are fixed on both sides of the bottom wall of the main body 1. A terminal 10 is sleeved between the two connecting rods 9. The top of the side wall of the connecting rod 9 is symmetrically provided with mounting grooves 13. A positioning block 16 that abuts against the top of the terminal 10 is elastically inserted into the mounting groove 13.

[0020] The top of the photovoltaic junction box body 1 has a rectangular array of screw holes 6. The top of the sealing cover 4 is fitted with a fastening bolt 5 that is threaded into the screw hole 6. The side walls of the photovoltaic junction box body 1 are symmetrically fitted with fixing seats 2. Both ends of the photovoltaic junction box body 1 are fixed with wire input pipes 3. The wire input pipes 3 are embedded with metal connecting parts, and the wire input pipes 3 are fitted with threaded fastening pipes 7 through the metal connecting parts. After installation, the photovoltaic junction box body 1 releases static electricity through the discharge metal strip 8, which greatly reduces the impact of static electricity on the photovoltaic junction box body 1. At the same time, the fastening bolts 5 are threaded into the screw holes 6, so that the sealing cover 4 is tightly connected to the protrusion at the top of the photovoltaic junction box body.

[0021] Furthermore, multiple wiring pressure plates 11 are provided on both sides of the top surface of the terminal 10. A wiring bolt 12 that abuts against the wiring pressure plate 11 is threaded into the top of the terminal 10. Both ends of the terminal 10 are provided with connection holes 17. The connecting rod 9 is inserted into the connection hole 17. A spring 14 is embedded in the mounting groove 13. An anti-disengagement part 15 that abuts against the inner wall of the mounting groove 13 is fixed on the positioning block 16. When the terminal 10 is maintained or replaced, the positioning block 16 is squeezed and retracted into the mounting groove 13. The terminal 10 slides into the connecting rod 9 through the connection hole 17. After the terminal 10 is replaced, it is inserted between the two connecting rods 9. The spring 14 in the telescopic groove pushes the positioning block 16 to protrude from the top of the terminal 10, thereby keeping the terminal 10 fixed.

[0022] The working principle of this utility model is as follows: When installing the photovoltaic junction box body 1, the photovoltaic junction box body 1 is fixed by screws and fixing seat 2. When maintaining or replacing the wiring terminal 10, the squeezing positioning block 16 retracts into the mounting groove 13, and the wiring terminal 10 slides into the connecting rod 9 through the connecting hole 17. After replacing the wiring terminal 10, it is inserted between the two connecting rods 9. The spring 14 in the telescopic groove pushes the positioning block 16 to protrude at the top of the wiring terminal 10, thereby keeping the wiring terminal 10 fixed and improving the convenience of maintenance and disassembly of the wiring terminal 10. After installation, the photovoltaic junction box body 1 releases static electricity through the discharge metal strip 8, which greatly reduces the impact of static electricity on the photovoltaic junction box body 1. At the same time, the fastening bolt 5 is threaded into the screw hole 6, so that the sealing cover 4 is tightly connected to the protrusion at the top of the photovoltaic junction box body, improving the sealing performance of the photovoltaic junction box body installation.

[0023] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A photovoltaic junction box, comprising a photovoltaic junction box body (1) and a sealing cover (4) installed on the top of the photovoltaic junction box body (1), characterized in that: The outer wall of the photovoltaic junction box body (1) is fixed with discharge metal strips (8) at equal intervals, and the bottom wall of the photovoltaic junction box body (1) is fixed with connecting rods (9) on both sides. A terminal block (10) is sleeved between the two connecting rods (9). The top of the side wall of the connecting rod (9) is symmetrically provided with mounting grooves (13). A positioning block (16) that abuts against the top of the terminal block (10) is elastically inserted into the mounting groove (13).

2. A photovoltaic junction box according to claim 1, characterized in that: The top of the photovoltaic junction box body (1) has screw holes (6) arranged in a rectangular array, and the top of the sealing cover (4) is fitted with fastening bolts (5) that are threaded into the screw holes (6).

3. A photovoltaic junction box according to claim 2, characterized in that: The photovoltaic junction box body (1) is symmetrically equipped with fixing bases (2) on its side walls, and both ends of the photovoltaic junction box body (1) are fixed with wire input pipes (3).

4. A photovoltaic junction box according to claim 3, characterized in that: The wire input tube (3) is embedded with a metal connector, and the wire input tube (3) is fitted with a threaded fastening tube (7) through the metal connector.

5. A photovoltaic junction box according to claim 1, characterized in that: The terminal block (10) has multiple terminal pressure plates (11) on both sides of its top surface, and the terminal block (10) has a terminal bolt (12) threaded into its top surface that abuts against the terminal pressure plate (11).

6. A photovoltaic junction box according to claim 5, characterized in that: Both ends of the terminal block (10) are provided with connection holes (17), and the connecting rod (9) is inserted into the connection holes (17).

7. A photovoltaic junction box according to claim 6, characterized in that: A spring (14) is embedded in the mounting groove (13), and an anti-detachment part (15) is fixed on the positioning block (16) to abut against the inner wall of the mounting groove (13).

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