Water vapor erosion resistant photovoltaic junction box structure

Abstract

The utility model discloses a water vapor erosion resistant photovoltaic junction box structure, which comprises a junction box body and a preassembled plate, an inverted n-shaped plate is fixedly mounted in the middle of one side of the preassembled plate, and two inverted U-shaped clamping plates are symmetrically and fixedly mounted in the middle of the surface of the inverted n-shaped plate. The junction box body is located in the middle of the surface of the inverted-n-shaped plate and located between the two inverted-U-shaped clamping plates, first mounting holes are formed in the middles of the two inverted-U-shaped clamping plates, mounting insertion holes are formed in the middles of the two sides of the junction box body, and fixing pins are movably inserted into the two first mounting holes. The opposite ends of the two fixing pins are movably inserted into the two mounting insertion holes correspondingly, and the opposite ends of the two fixing pins are each provided with an extrusion slope structure. The photovoltaic junction box is provided with the detachable preassembled plate structure, so that the junction box can be conveniently disassembled and assembled, later maintenance operation is facilitated, and the use convenience of the junction box is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic junction boxes, and specifically relates to a structure of a photovoltaic junction box resistant to water vapor erosion. Background Technique

[0002] The photovoltaic junction box is an important component in the photovoltaic power generation system, mainly used to connect photovoltaic modules with inverters or other electrical equipment. It not only provides electrical connection but also plays a role in protecting the circuit, ensuring the safe and stable operation of the system; its main functions are as follows: 1. Electrical connection: Lead out the output current of the photovoltaic module to facilitate connection with other components (such as inverters, grid-connected equipment, etc.); 2. Protection function: (1) Waterproof and dustproof: The junction box usually has good sealing performance, which can prevent water and dust from entering and protect the internal electrical components; (2) Overload protection: The built-in fuse or circuit breaker can cut off the circuit in case of overload or short circuit to protect the photovoltaic module and other equipment; 3. Signal transmission: Some junction boxes are equipped with monitoring functions and can transmit data such as temperature, current, and voltage to help users monitor the operation status of the photovoltaic system in real time; 3. Heat dissipation function: The design of the junction box usually takes heat dissipation into consideration to prevent overheating from affecting its performance and service life.

[0003] The existing photovoltaic junction boxes are pre-installed and fixed at the bottom of the photovoltaic panel in a bonding manner before leaving the factory, which is not convenient for installation, disassembly, and maintenance during later use and is not conducive to use. Therefore, in view of the above problems, improvements are now needed. Content of the Utility Model

[0004] To achieve the above object, the utility model provides the following technical solution: A structure of a photovoltaic junction box resistant to water vapor erosion, including a junction box body and a pre-installation plate. In the middle of one side of the pre-installation plate, an inverted n-shaped plate is fixedly installed. In the middle of the surface of the inverted n-shaped plate, two inverted U-shaped clamping plates are symmetrically and fixedly installed. The junction box body is located in the middle of the surface of the inverted n-shaped plate and between the two inverted U-shaped clamping plates. In the middle of both sides of the two inverted U-shaped clamping plates, first installation holes are opened. In the middle of both sides of the junction box body, installation jacks are opened. Fixing pins are movably inserted into the interiors of the two first installation holes, and the opposite ends of the two fixing pins are respectively movably inserted into the interiors of the two installation jacks, and the opposite ends of the two fixing pins are both provided with extrusion inclined surface structures.

[0005] Preferably, second installation holes are opened in the middle of both sides of the inverted n-shaped plate. Adjusting pins are movably inserted into the interiors of the two second installation holes. On the opposite ends of the two adjusting pins, connecting plates are fixedly installed. The upper parts of the two connecting plates are respectively fixedly connected to the opposite ends of the two fixing pins. On the opposite ends of the two adjusting pins located inside the inverted n-shaped plate, right-angled trapezoidal extrusion blocks are fixedly connected. Springs are installed on the surfaces of the two adjusting pins, and the two ends of the springs are respectively fixedly connected to the inverted n-shaped plate and the right-angled trapezoidal extrusion blocks.

[0006] Preferably, a disk located inside the inverted N-shaped plate is rotatably connected to the middle of one side of the junction box body, and two extrusion pins matching the inclined surfaces of the right-angle trapezoidal extrusion block are symmetrically fixedly connected to one side of the disk, thereby enabling effective adjustment.

[0007] Preferably, two toggle pins are symmetrically fixedly connected to the circumferential surface of the disk, one end of each toggle pin is fixedly connected to a pull ring, and one side of the junction box body is fixedly connected to two blocks for limiting the toggle pins, thereby enabling effective operation.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: by providing a junction box body, a pre-installed plate, an inverted N-shaped plate, an inverted U-shaped card plate, a first mounting hole, a mounting jack, a fixing pin, a second mounting hole, a connecting plate, an adjusting pin, a right-angled trapezoidal extrusion block, a spring, a disc, an extrusion pin, a toggle pin, a pull ring and a block, the photovoltaic junction box has a detachable pre-installed plate structure, which can conveniently disassemble and assemble the junction box, thereby facilitating later maintenance operations and improving the convenience of using the junction box. At the same time, the photovoltaic junction box has a simple structural design, is convenient and easy to use and operate, and is stable and reliable to install and fix. Its performance can meet people's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0010] In the attached picture:

[0011] Figure 1 This is a schematic diagram of the structure of the utility model water vapor erosion resistant photovoltaic junction box;

[0012] Figure 2 For this utility model Figure 1 A schematic cross-sectional structure diagram of;

[0013] Figure 3 This is a schematic diagram of the structure of the fixing pin of the utility model;

[0014] Figure 4 For this utility model Figure 2 A schematic cross-sectional structure diagram of ;

[0015] In the figure: 1. Junction box body; 2. Pre-installed plate; 3. Inverted N-shaped plate; 4. Inverted U-shaped card plate; 5. First mounting hole; 6. Mounting socket; 7. Fixing pin; 8. Second mounting hole; 9. Connecting plate; 10. Adjusting pin; 11. Right-angle trapezoidal extrusion block; 12. Spring; 13. Disc; 14. Extrusion pin; 15. Toggle pin; 16. Pull ring; 17. Stop block. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] As shown by Figures 1 to 4 the present utility model includes a junction box body 1 and a pre-installed board 2. The surface of the junction box body 1 has a moisture-resistant paint coating, and the gaps of the junction box body 1 are sealed with potting glue. In the middle of one side of the pre-installed board 2, an inverted n-shaped plate 3 is fixedly installed. Two inverted U-shaped clamping plates 4 are symmetrically and fixedly installed in the middle of the surface of the inverted n-shaped plate 3. The junction box body 1 is located in the middle of the surface of the inverted n-shaped plate 3 and between the two inverted U-shaped clamping plates 4. First installation holes 5 are opened in the middle of both of the two inverted U-shaped clamping plates 4. Installation jacks 6 are opened in the middle of both sides of the junction box body 1. Fixing pins 7 are movably inserted into the interiors of the two first installation holes 5 respectively. The opposite ends of the two fixing pins 7 are movably inserted into the interiors of the two installation jacks 6 respectively, and the opposite ends of the two fixing pins 7 are provided with extrusion inclined surface structures, so that the junction box body 1 can extrude the two fixing pins 7 and be effectively installed between the two inverted U-shaped clamping plates 4.

[0018] This photovoltaic junction box has a detachable pre-installed board structure, which can facilitate the disassembly and assembly operations of the junction box, thus facilitating later maintenance operations and improving the convenience of using the junction box. At the same time, the structure of this photovoltaic junction box is simply designed, easy to use and operate, and stable and reliable in installation and fixation. Its performance can meet the usage requirements of people.

[0019] Second installation holes 8 are opened in the middle of both sides of the inverted n-shaped plate 3. Adjusting pins 10 are movably inserted into the interiors of the two second installation holes 8 respectively. Connecting plates 9 are fixedly installed at the opposite ends of the two adjusting pins 10. The upper parts of the two connecting plates 9 are fixedly connected to the opposite ends of the two fixing pins 7 respectively. Right-angled trapezoidal extrusion blocks 11 are fixedly connected to the opposite ends of the two adjusting pins 10 located inside the inverted n-shaped plate 3. Springs 12 are installed on the surfaces of the two adjusting pins 10. The two ends of each spring 12 are fixedly connected to the inverted n-shaped plate 3 and the right-angled trapezoidal extrusion block 11 respectively.

[0020] In the middle of one side of the junction box body 1, a disk 13 located inside the inverted n-shaped plate 3 is rotatably connected. On one side of the disk 13, two extrusion pins 14 that match the inclined surfaces of the right-angled trapezoidal extrusion blocks 11 are symmetrically and fixedly connected, so as to effectively adjust. On the circumferential surface of the disk 13, two toggle pins 15 are symmetrically and fixedly connected. One end of each of the two toggle pins 15 is fixedly connected with a pull ring 16. On one side of the junction box body 1, two stoppers 17 for limiting the toggle pins 15 are fixedly connected, so as to effectively operate;

[0021] When it is necessary to disassemble the photovoltaic junction box body 1, the disk 13 is rotated through any one of the pull rings 16 and the toggle pins 15 on any one of the pull rings 16. The rotation of the disk 13 will drive the two extrusion pins 14 to rotate. The rotation of the two extrusion pins 14 will extrude the inclined surfaces of the two right-angled trapezoidal extrusion blocks 11, so that the two right-angled trapezoidal extrusion blocks 11 move away from each other. The two right-angled trapezoidal extrusion blocks 11 moving away from each other will drive the adjusting pin 10 to move and compress the spring 12. At the same time, the movement of the adjusting pin 10 will drive the connecting plate 9 to move, and the movement of the connecting plate 9 will drive the fixing pin 7 to move, so that the ends of the two fixing pins 7 are removed from the inside of the two mounting jacks 6, and then the photovoltaic junction box body 1 can be removed from between the two inverted U-shaped clamping plates 4.

Claims

1. A photovoltaic junction box structure resistant to water vapor erosion, comprising a junction box body (1) and a pre-installed board (2), characterized in that: An inverted n-shaped plate (3) is fixedly mounted in the middle of one side of the pre-installed plate (2); two inverted U-shaped card plates (4) are symmetrically fixedly mounted in the middle of the surface of the inverted n-shaped plate (3); the junction box body (1) is located in the middle of the surface of the inverted n-shaped plate (3) and between the two inverted U-shaped card plates (4); a first mounting hole (5) is provided in the middle of the two inverted U-shaped card plates (4); mounting plug holes (6) are provided in the middle of both sides of the junction box body (1); fixing pins (7) are movably inserted in the interior of the two first mounting holes (5); the opposite ends of the two fixing pins (7) are movably inserted in the interior of the two mounting plug holes (6), and the opposite ends of the two fixing pins (7) are provided with extrusion inclined surface structures.

2. The structure of a moisture-resistant photovoltaic junction box according to claim 1, characterized in that: The middle parts of both sides of the inverted n-shaped plate (3) are provided with second mounting holes (8), and the insides of the two second mounting holes (8) are movably plugged with adjusting pins (10), and the ends of the two adjusting pins (10) facing away from each other are fixedly mounted with connecting plates (9), and the upper parts of the two connecting plates (9) are respectively fixedly connected to the ends of the two fixing pins (7) facing away from each other, and the opposite ends of the two adjusting pins (10) located inside the inverted n-shaped plate (3) are fixedly connected to right-angled trapezoidal extrusion blocks (11), and the surfaces of the two adjusting pins (10) are installed with springs (12), and the two ends of the springs (12) are respectively fixedly connected to the inverted n-shaped plate (3) and the right-angled trapezoidal extrusion blocks (11).

3. The structure of a moisture-resistant photovoltaic junction box according to claim 2, characterized in that: A disk (13) located inside the inverted N-shaped plate (3) is rotatably connected to the middle of one side of the junction box body (1), and two extrusion pins (14) matching the inclined surfaces of the right-angle trapezoidal extrusion block (11) are symmetrically fixedly connected to one side of the disk (13).

4. A moisture-resistant photovoltaic junction box structure according to claim 3, characterized in that: Two toggle pins (15) are symmetrically and fixedly connected to the circumferential surface of the disk (13), one end of each of the two toggle pins (15) is fixedly connected to a pull ring (16), and one side of the junction box body (1) is fixedly connected to two stoppers (17) for limiting the toggle pins (15).

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