Photovoltaic junction box convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of photovoltaic junction boxes, in particular to a photovoltaic junction box convenient to disassemble and assemble, which comprises a fixing plate, and two limiting frames are fixedly connected to the middle of the surface of the fixing plate. When the junction box is used, the junction box main body is firstly connected with the limiting frames, then the connecting wires at the two ends of the junction box main body are respectively plugged into the two first clamping plates, then the second clamping plates are connected with the first clamping plates, and the two limiting frames apply pressure to the two limiting blocks at the same time in the connecting process; and when the second clamping plate and the first clamping plate are connected, the limiting spring ejects the limiting block out of the connecting plate and inserts the limiting block into the limiting frame, so that the positions of the first clamping plate and the second clamping plate are fixed under the cooperation of the limiting block, the connecting plate and the limiting frame. And the first clamping plate and the second clamping plate are used for fixing the connecting wire, so that the effects of fixing the connecting wire and preventing the connecting wire from falling off are achieved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic junction box technology, specifically a photovoltaic junction box that is easy to assemble and disassemble. Background Technology

[0002] The collection and connection of photovoltaic modules mainly uses photovoltaic junction boxes. A photovoltaic junction box is a connecting device between a solar cell array composed of solar cell modules and a solar charging control device. Its main function is to connect and protect solar photovoltaic modules, connect the power generated by the solar cells to external lines, and conduct the current generated by the photovoltaic modules. Therefore, a photovoltaic junction box that is easy to install and remove is needed in solar photovoltaic power stations, distributed photovoltaic power generation systems and other occasions.

[0003] However, the existing junction boxes have weak fixing functions. During the use of the junction boxes, the connecting wires inside the junction boxes may be detached due to external forces. When the connecting wires detach from the junction boxes, it will affect the normal operation of the junction boxes. In addition, some junction boxes have poor maintenance performance. Under long-term use, the junction boxes need to be inspected regularly. The process of removing the junction boxes from the photovoltaic panels during maintenance is quite cumbersome, resulting in poor maintenance performance. Utility Model Content

[0004] The purpose of this utility model is to provide a photovoltaic junction box that is easy to install and disassemble, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A photovoltaic junction box that is easy to assemble and disassemble includes a fixing plate. Two limiting frames are fixedly connected to the middle of the surface of the fixing plate. First clamping plates are fixedly connected to both ends of one side of each limiting frame. A connecting groove is formed on the side of the limiting frame near the first clamping plates. A connecting plate is slidably connected inside the connecting groove. Two limiting springs are fixedly connected inside the connecting plate. One end of each limiting spring is fixedly connected to a limiting block. A second clamping plate is fixedly connected to one side of the connecting plate. An installation groove is formed on the surface of the limiting frame. An installation plate is slidably connected inside the installation groove. Two fixing springs are fixedly connected inside the installation plate. One end of each fixing spring is fixedly connected to a fixing block. The junction box body is fixedly connected to one end of the installation plate.

[0007] Preferably, threaded sleeves are fixedly connected to the four corners of the surface of the fixing plate, and the internal threads of the threaded sleeves are connected to fixing bolts.

[0008] Preferably, a protective frame is rotatably connected to one side of the surface of the fixing bolt, and several wire holes are provided at both ends of the protective frame.

[0009] Preferably, a rectangular groove is formed in the middle of the surface of the protective frame, and a protective plate is fixedly connected inside the rectangular groove.

[0010] Preferably, limit holes are provided at both ends of the other side of the limiting frame, and the inside of the limit holes is slidably connected to one side of the limiting block.

[0011] Preferably, both ends of the mounting plate are provided with round holes, and the inside of the round holes is slidably connected to one side of the surface of the fixing block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This photovoltaic junction box, which is easy to assemble and disassemble, consists of a first clamping plate, a second clamping plate, and a connecting plate. During use, the junction box body is first connected to the limiting frame. Then, the connecting wires at both ends of the junction box body are inserted into the two first clamping plates. Next, the second clamping plate is connected to the first clamping plate. During the connection process, the two limiting frames simultaneously apply pressure to the two limiting blocks, thereby compressing the limiting springs inside the connecting plate. After the second clamping plate is connected to the first clamping plate, the limiting springs push the limiting blocks out of the connecting plate and insert them into the limiting frame. Thus, the positions of the first and second clamping plates are fixed through the cooperation of the limiting blocks, connecting plate, and limiting frame. The first and second clamping plates are used to fix the connecting wires, achieving the effect of fixing the connecting wires and preventing them from falling off.

[0014] 2. This easy-to-assemble and disassemble photovoltaic junction box, through the setting of a fixing plate, a limiting frame, and a mounting plate, allows for easy assembly and disassembly. First, the fixing plate is fixed to the bottom of the photovoltaic panel. Before connecting the mounting plate to the limiting frame, the connecting wires are installed inside the junction box body. Then, the junction box body is connected to the limiting frame. During the connection process, the limiting frame presses against the protruding fixing block on the mounting plate, which in turn presses against the fixing spring inside the mounting plate. After the junction box body is connected to the limiting frame, the mounting plate is inside the limiting frame. Then, the fixing spring pushes the fixing block out of the mounting plate, allowing it to insert into the limiting frame. This fixes the mounting plate in the position of the limiting frame, thus securing the junction box body within the limiting frame and facilitating future maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0016] Figure 2 This is a partial disassembled schematic diagram of the present invention;

[0017] Figure 3 This is a partial disassembled schematic diagram of the present invention;

[0018] Figure 4 This is a partial disassembled schematic diagram of the present invention.

[0019] In the diagram: 1. Fixing plate; 2. Limiting frame; 3. First clamping plate; 5. Connecting plate; 6. Limiting spring; 7. Limiting block; 8. Second clamping plate; 9. Mounting plate; 10. Fixing spring; 11. Fixing block; 12. Junction box body; 13. Threaded sleeve; 14. Fixing bolt; 15. Protective frame; 16. Protective plate. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0023] A photovoltaic junction box that is easy to assemble and disassemble includes a fixing plate 1. Two limiting frames 2 are fixedly connected to the middle of the surface of the fixing plate 1. First clamping plates 3 are fixedly connected to both ends of one side of the limiting frame 2. A connecting groove is opened on the side of the limiting frame 2 near the first clamping plate 3. A connecting plate 5 is slidably connected inside the connecting groove. Two limiting springs 6 are fixedly connected inside the connecting plate 5. A limiting block 7 is fixedly connected to one end of the limiting spring 6. A second clamping plate 8 is fixedly connected to one side of the connecting plate 5. An installation groove is opened on the surface of the limiting frame 2. An installation plate 9 is slidably connected inside the installation groove. Two fixing springs 10 are fixedly connected inside the installation plate 9. A fixing block 11 is fixedly connected to one end of the fixing spring 10. A junction box body 12 is fixedly connected to one end of the installation plate 9.

[0024] Please see Figure 2 As shown, in this embodiment, preferably, threaded sleeves 13 are fixedly connected to the four corners of the surface of the fixing plate 1, and fixing bolts 14 are threadedly connected inside the threaded sleeves 13.

[0025] Please see Figure 3 As shown, in this embodiment, preferably, a protective frame 15 is rotatably connected to one side of the surface of the fixing bolt 14, and several wire holes are opened at both ends of the protective frame 15.

[0026] Please see Figure 2 As shown, in this embodiment, preferably, a rectangular groove is provided in the middle of the surface of the protective frame 15, and a protective plate 16 is fixedly connected inside the rectangular groove;

[0027] Please see Figure 2 As shown, in this embodiment, preferably, limit holes are provided at both ends of the other side of the limit frame 2, and the inside of the limit holes is slidably connected to one side of the limit block 7.

[0028] In use, first connect the junction box body 12 to the limiting frame 2, then insert the connecting wires at both ends of the junction box body 12 into the two first clamping plates 3 respectively, and then connect the second clamping plate 8 to the first clamping plate 3. During the connection process, the two limiting frames 2 will simultaneously apply pressure to the two limiting blocks 7, thereby using the limiting blocks 7 to compress the limiting spring 6 in the connecting plate 5. After the second clamping plate 8 is connected to the first clamping plate 3, the limiting spring 6 pushes the limiting block 7 out of the connecting plate 5 and inserts it into the limiting frame 2, thereby fixing the position of the first clamping plate 3 and the second clamping plate 8 with the cooperation between the limiting block 7, the connecting plate 5 and the limiting frame 2. The connecting wires are fixed by the first clamping plate 3 and the second clamping plate 8. Then connect the protective frame 15 to the fixing plate 1, and rotate the fixing bolt 14 on the protective frame 15 to connect the fixing bolt 14 to the threaded sleeve 13.

[0029] Example 2

[0030] A photovoltaic junction box that is easy to assemble and disassemble includes a fixing plate 1. Two limiting frames 2 are fixedly connected to the middle of the surface of the fixing plate 1. First clamping plates 3 are fixedly connected to both ends of one side of the limiting frame 2. A connecting groove is opened on the side of the limiting frame 2 near the first clamping plate 3. A connecting plate 5 is slidably connected inside the connecting groove. Two limiting springs 6 are fixedly connected inside the connecting plate 5. A limiting block 7 is fixedly connected to one end of the limiting spring 6. A second clamping plate 8 is fixedly connected to one side of the connecting plate 5. An installation groove is opened on the surface of the limiting frame 2. An installation plate 9 is slidably connected inside the installation groove. Two fixing springs 10 are fixedly connected inside the installation plate 9. A fixing block 11 is fixedly connected to one end of the fixing spring 10. A junction box body 12 is fixedly connected to one end of the installation plate 9.

[0031] Please see Figure 4 As shown, in this embodiment, preferably, both ends of the mounting plate 9 are provided with round holes, and the inside of the round holes is slidably connected to one side of the surface of the fixing block 11;

[0032] When in use, first fix the fixing plate 1 to the bottom of the photovoltaic panel. Before connecting the mounting plate 9 to the limiting frame 2, install the connecting wire inside the junction box body 12. Then connect the junction box body 12 to the limiting frame 2. During the connection process, the limiting frame 2 presses the fixing block 11 protruding on the mounting plate 9. The fixing block 11 presses the fixing spring 10 inside the mounting plate 9. After the junction box body 12 is connected to the limiting frame 2, the mounting plate 9 is inside the limiting frame 2. Then the fixing spring 10 pushes the fixing block 11 out of the mounting plate 9, allowing the fixing block 11 to be inserted into the limiting frame 2. Thus, the fixing block 11 fixes the mounting plate 9 in the position of the limiting frame 2, and fixes the junction box body 12 inside the limiting frame 2.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic junction box that is easy to assemble and disassemble, comprising a fixing plate (1), characterized in that: Two limiting frames (2) are fixedly connected to the middle of the surface of the fixed plate (1). A first clamping plate (3) is fixedly connected to both ends of one side of the limiting frame (2). A connecting groove is opened on the side of the limiting frame (2) near the first clamping plate (3). A connecting plate (5) is slidably connected inside the connecting groove. Two limiting springs (6) are fixedly connected inside the connecting plate (5). A limiting block (7) is fixedly connected to one end of the limiting spring (6). A second clamping plate (8) is fixedly connected to one side of the connecting plate (5). An installation groove is opened on the surface of the limiting frame (2). An installation plate (9) is slidably connected inside the installation groove. Two fixing springs (10) are fixedly connected inside the installation plate (9). A fixing block (11) is fixedly connected to one end of the fixing spring (10). A junction box body (12) is fixedly connected to one end of the installation plate (9).

2. The photovoltaic junction box that is easy to assemble and disassemble according to claim 1, characterized in that: Threaded sleeves (13) are fixedly connected at the four corners of the surface of the fixed plate (1), and the internal threads of the threaded sleeves (13) are connected to fixing bolts (14).

3. A photovoltaic junction box that is easy to assemble and disassemble according to claim 2, characterized in that: A protective frame (15) is rotatably connected to one side of the surface of the fixing bolt (14), and several wire holes are provided at both ends of the protective frame (15).

4. A photovoltaic junction box that is easy to assemble and disassemble according to claim 3, characterized in that: A rectangular groove is provided in the middle of the surface of the protective frame (15), and a protective plate (16) is fixedly connected inside the rectangular groove.

5. A photovoltaic junction box that is easy to assemble and disassemble according to claim 1, characterized in that: Limiting holes are provided at both ends of the other side of the limiting frame (2), and the inside of the limiting hole is slidably connected to one side of the limiting block (7).

6. A photovoltaic junction box that is easy to assemble and disassemble according to claim 1, characterized in that: Both ends of the mounting plate (9) are provided with round holes, and the inside of the round holes is slidably connected to one side of the surface of the fixing block (11).

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