Split type photovoltaic junction box

Abstract

The utility model relates to the technical field of split-type photovoltaic junction boxes, in particular to a split-type photovoltaic junction box, which comprises a shell, two sides of the outer side of the shell are provided with convex blocks, the middle parts of the convex blocks and the two sides of the shell are provided with telescopic grooves, pull rods are inserted into the telescopic grooves, the rear ends of the pull rods are connected with inserting blocks, the pull rods are connected to the middle parts of the inserting blocks, and the inserting blocks are connected with the outer side of the shell. The two sides of the pull rod are connected with first springs, and the other ends of the first springs are connected with the inner walls of the outer sides of the telescopic grooves. A cavity is formed in the pull rod and the inserting block, two sets of contraction plates are arranged in the cavity and connected through a second spring, the top of the outer side of the second spring is connected with a pressing head, and the top of the inner side of the second spring is connected with a limiting block; the beneficial effects of the split type photovoltaic junction box are that when the photovoltaic junction box is maintained, the pressure heads at the upper and lower ends of the outer side of the pull rod are extruded, so that the pressure heads extrude the contraction plate;

Description

Technical Field

[0001] The utility model relates to the field of split-type photovoltaic junction boxes, in particular to a split-type photovoltaic junction box. Background Art

[0002] Photovoltaic junction box is one of the important components of solar panels. Its main function is to connect the electricity generated by solar cells to external lines.

[0003] In the prior art, the photovoltaic junction box is mostly fixed directly at a specified position by screws during installation. During subsequent maintenance, the screws need to be removed and the entire box needs to be removed. After the maintenance, the photovoltaic junction box needs to be fixed again by screws, which makes the overall operation more troublesome.

[0004] Therefore, we provide a split photovoltaic junction box to solve the problem that the photovoltaic junction box in the prior art is troublesome to operate during maintenance. Utility Model Content

[0005] The purpose of the utility model is to provide a split photovoltaic junction box to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shell, protrusions are provided on both sides of the outer side of the shell, telescopic grooves are provided in the middle of the protrusions and on both sides of the shell, a pull rod is inserted in the telescopic groove, the rear end of the pull rod is connected to the plug-in block, the pull rod is connected to the middle of the plug-in block, both sides of the pull rod are connected to the first spring, and the other end of the first spring is connected to the outer inner wall of the telescopic groove; and a cavity is provided inside the pull rod and the plug-in block, two groups of contraction plates are provided in the cavity, the two groups of contraction plates are connected by a second spring, the outer top of the second spring is connected to the pressure head, and the inner top of the second spring is connected to the limit block.

[0007] Preferably, a wiring board is provided in the shell, a plurality of wiring boards are provided on the top of the wiring board, the wiring board is connected to the wiring through the wiring boards, a pull ring is provided in the middle of the outer side of the wiring board, and the wiring board can be pulled out of the shell through the pull ring.

[0008] Preferably, two groups of slots are provided on both sides of the cable board, the two groups of slots are respectively located at the front end and the rear end of the cable board, and fixed slots are provided at both upper and lower ends of the inner sides of the two groups of slots, and the plug-in blocks can be plugged into the slots.

[0009] Preferably, the front end of the pull rod extends out from the outside of the protrusion, and by pulling the pull rod, the plug-in block connected to the rear end of the pull rod can squeeze the first spring, so that the plug-in block shrinks from the slot to the telescopic slot, thereby eliminating the limitation on the cable tray.

[0010] Preferably, the bottom of the pressure head is connected to the retraction plate. By pressing the pressure head, the pressure head can be pressed against the retraction plate, so that the second spring drives the limit block connected to the rear end of the retraction plate to retract from the fixed groove to the cavity opened inside the plug-in block.

[0011] Preferably, the pull rod is connected to a limit plate, the other end of the limit plate is connected to a connecting column, and the bottom of the connecting column is connected to the rear end of the contraction plate. When the pull rod descends, the limit plate can drive the connecting column to squeeze the rear end of the contraction plate, so that the contraction of the contraction plate is synchronized.

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

[0013] The utility model provides a split photovoltaic junction box. When the photovoltaic junction box is repaired, the pressure heads at the upper and lower ends of the outer side of the pull rod are first squeezed to make the pressure heads squeeze the retractable plate, so that the retractable plate drives the limit blocks connected to the inner side of the retractable plate to retract from the fixed grooves at the upper and lower ends of the inner side of the slot to the plug-in block, and the fixation of the plug-in block is cancelled. Then, the pull rod is pulled to make the fixed groove squeeze the first spring to make the plug-in block retract into the telescopic groove, and the limit of the wiring board is cancelled. Then, the pull ring is pulled to draw the wiring board out of the shell. The wiring board can be drawn out as a whole for repair, or only the wiring board on the wiring board can be exposed on the outer side of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 4 This is another cross-sectional structural diagram of the utility model;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the convex block of the utility model;

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the slot of the utility model;

[0020] Figure 7 This is a schematic diagram of the cross-sectional structure of the plug-in block of the utility model.

[0021] In the figure: housing 1, wiring board 2, pull ring 3, protrusion 4, pull rod 5, pressure head 6, limit plate 7, terminal board 8, slot 9, fixing slot 10, plug-in block 11, telescopic slot 12, first spring 13, contraction plate 14, second spring 15, connecting column 16, limit block 17. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 7 The utility model provides a technical solution: a shell 1, protrusions 4 are arranged on both sides of the outer side of the shell 1, a telescopic groove 12 is opened in the middle of the protrusion 4 and the two sides of the shell 1, a pull rod 5 is inserted in the telescopic groove 12, the rear end of the pull rod 5 is connected to the plug-in block 11, the pull rod 5 is connected to the middle of the plug-in block 11, the two sides of the pull rod 5 are connected to the first spring 13, and the other end of the first spring 13 is connected to the outer inner wall of the telescopic groove 12; and a cavity is opened inside the pull rod 5 and the plug-in block 11 Two groups of retractable plates 14 are arranged in the cavity, and the two groups of retractable plates 14 are connected by a second spring 15. The outer top of the second spring 15 is connected to the pressure head 6, and the inner top of the second spring 15 is connected to the limit block 17; the second spring 15 between the two groups of retractable plates 14 bounces the retractable plates 14 outward through tension, so that the limit block 17 connected to the inner side of the retractable plates 14 extends from the plug-in block 11 and is plugged into the fixing groove 10 opened on the inner side of the slot 9, thereby limiting the plug-in block 11.

[0025] Embodiment 2

[0026] On the basis of the first embodiment, a wiring board 2 is arranged in the middle of the housing 1, and a plurality of wiring boards 8 are arranged on the top of the wiring board 2. The wiring board 2 is connected to the wiring through the wiring board 8. A pull ring 3 is arranged in the middle of the outer side of the wiring board 2, and the wiring board 2 can be pulled out of the housing 1 through the pull ring 3; two groups of slots 9 are arranged on both sides of the wiring board 2, and the two groups of slots 9 are respectively located at the front end and the rear end of the wiring board 2. Fixed grooves 10 are opened at both ends of the inner sides of the two groups of slots 9, and the plug-in blocks 11 can be Plug it into the slot 9; the front end of the pull rod 5 extends out from the outside of the protrusion 4, and by pulling the pull rod 5, the plug-in block 11 connected to the rear end of the pull rod 5 can squeeze the first spring 13, so that the plug-in block 11 shrinks from the slot 9 to the telescopic slot 12, and the limit on the cable board 2 is cancelled; the fixed slot 10 squeezes the first spring 13, so that the plug-in block 11 shrinks to the telescopic slot 12, and the limit on the cable board 2 is cancelled, and then the pull ring 3 is pulled out of the cable board 2 from the shell 1.

[0027] Embodiment 3

[0028] On the basis of the second embodiment, the bottom of the pressure head 6 is connected to the retraction plate 14. By squeezing the pressure head 6, the pressure head 6 can squeeze the retraction plate 14, so that the second spring 15 drives the limit block 17 connected to the rear end of the retraction plate 14 to retract from the fixed groove 10 to the cavity opened inside the plug-in block 11; the pull rod 5 is connected to the limit plate 7, and the other end of the limit plate 7 is connected to the connecting column 16, and the bottom of the connecting column 16 is connected to the rear end of the retraction plate 14. When the pull rod 5 descends, it can drive the connecting column 16 to squeeze the rear end of the retraction plate 14 through the limit plate 7, so that the retraction of the retraction plate 14 is synchronized; the pressure head 6 can squeeze the rear end of the retraction plate 14 through the connecting column 16 on the inner side of the limit plate 7, so that the retraction of the retraction plate 14 is synchronized, thereby preventing the retraction plate 14 from tilting and causing the limit block 17 to fail to retract normally into the plug-in block 11.

[0029] In actual use, when the photovoltaic junction box is repaired, the pressure head 6 at the upper and lower ends of the outer side of the pull rod 5 is first squeezed to make the pressure head 6 squeeze the retractable plate 14, so that the retractable plate 14 drives the limit block 17 connected to the inner side of the retractable plate 14 to retract from the fixed grooves 10 at the upper and lower ends of the inner side of the slot 9 to the plug-in block 11, and the fixation of the plug-in block 11 is cancelled. Then, the pull rod 5 is pulled to make the fixed groove 10 squeeze the first spring 13, so that the plug-in block 11 is retracted to the telescopic groove 12, and the plug-in block 11 is removed. The limit of the wiring board 2 is eliminated, and then the wiring board 2 is pulled out of the housing 1 by pulling the pull ring 3. The wiring board 2 can be pulled out as a whole for maintenance, or only the wiring board 8 on the wiring board 2 is exposed on the outside of the housing 1. When the upper wiring board 8 of the wiring board 2 is exposed on the outside for maintenance, the pull rod 5 can be pulled and the pressure head 6 can be pressed to keep the pull rod 5 in the telescopic groove 12, and then the slots 9 opened at both ends of the inner side of the wiring board 2 are aligned with the housing 1 by pulling the pull ring 3. The first spring 13 in the telescopic slot 12 opened inside the protrusions 4 on both sides is then released and pulled, and the plug-in block 11 connected to the rear end of the pull rod 5 is ejected into the slot 9 by the tension of the first spring 13, and the cable tray 2 is clamped and limited. Then, the pressure on the pressure head 6 is released, and the second spring 15 between the two sets of contraction plates 14 is used to eject the contraction plates 14 outward by tension, so that the limit block 17 connected to the inner side of the contraction plate 14 extends from the plug-in block 11 and is plugged into the fixed slot 10 opened inside the slot 9. , to limit the plug-in block 11, so that the plug-in block 11 is more secure, the pressure head 6 is connected to the limit plate 7, the inner bottom of the limit plate 7 is connected to the connecting column 16, and the bottom of the connecting column 16 is connected to the rear end of the contraction plate 14. When the pressure head 6 presses the contraction plate 14 to contract, the pressure head 6 can squeeze the rear end of the contraction plate 14 through the connecting column 16 on the inner side of the limit plate 7, so that the contraction of the contraction plate 14 is synchronized, preventing the contraction plate 14 from tilting and causing the limit block 17 to fail to contract normally into the plug-in block 11.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A split photovoltaic junction box, characterized in that: The split photovoltaic junction box comprises: a shell (1), protrusions (4) are arranged on both sides of the outer side of the shell (1), a telescopic groove (12) is opened in the middle of the protrusion (4) and on both sides of the shell (1), a pull rod (5) is inserted in the telescopic groove (12), the rear end of the pull rod (5) is connected to the plug-in block (11), the pull rod (5) is connected to the middle of the plug-in block (11), both sides of the pull rod (5) are connected to the first spring (13), and the other end of the first spring (13) is connected to the outer inner wall of the telescopic groove (12); and A cavity is provided inside the pull rod (5) and the plug-in block (11), and two groups of retractable plates (14) are arranged in the cavity. The two groups of retractable plates (14) are connected by a second spring (15), the outer top of the second spring (15) is connected to the pressure head (6), and the inner top of the second spring (15) is connected to the limit block (17).

2. A split photovoltaic junction box according to claim 1, characterized in that: A wiring board (2) is arranged in the middle of the housing (1), a plurality of wiring boards (8) are arranged on the top of the wiring board (2), the wiring board (2) is connected to the wiring via the wiring boards (8), a pull ring (3) is arranged in the middle of the outer side of the wiring board (2), and the wiring board (2) can be pulled out of the housing (1) via the pull ring (3).

3. A split photovoltaic junction box according to claim 2, characterized in that: Two groups of slots (9) are provided on both sides of the wiring board (2), and the two groups of slots (9) are respectively located at the front end and the rear end of the wiring board (2). Fixed slots (10) are provided at both upper and lower ends of the inner sides of the two groups of slots (9), and the plug-in blocks (11) can be plugged into the slots (9).

4. A split photovoltaic junction box according to claim 3, characterized in that: The front end of the pull rod (5) extends out from the outside of the protrusion (4), and by pulling the pull rod (5), the plug-in block (11) connected to the rear end of the pull rod (5) can press the first spring (13), so that the plug-in block (11) shrinks from the slot (9) to the telescopic slot (12), thereby eliminating the limit on the wiring board (2).

5. A split photovoltaic junction box according to claim 4, characterized in that: The bottom of the pressure head (6) is connected to the retractable plate (14). By pressing the pressure head (6), the pressure head (6) can press the retractable plate (14), so that the second spring (15) drives the limit block (17) connected to the rear end of the retractable plate (14) to retract from the fixing groove (10) to the cavity opened inside the plug-in block (11).

6. A split photovoltaic junction box according to claim 5, characterized in that: The pull rod (5) is connected to a limit plate (7), the other end of the limit plate (7) is connected to a connecting column (16), the bottom of the connecting column (16) is connected to the rear end of the contraction plate (14), and when the pull rod (5) is lowered, the limit plate (7) can drive the connecting column (16) to squeeze the rear end of the contraction plate (14), so that the contraction of the contraction plate (14) is synchronized.

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