Solar cell module junction box

Abstract

The utility model relates to the technical field of photovoltaic junction boxes, in particular to a solar cell module junction box, which comprises a box body, a wiring board is fixedly mounted in the box body, a connector lug is arranged on the wiring board, a fixing mechanism is arranged on the front surface of the box body, and a positioning mechanism convenient for fixing a wiring position is arranged in the box body. The positioning mechanism comprises a U-shaped movable plate, a pressing block, a fixed block, a fixed bolt and a threaded sleeve, and the U-shaped movable plate is rotatably installed in the box body and located outside the wiring board. According to the solar cell module junction box, through the arrangement of the positioning mechanism, when the solar cell module junction box is used, the binding post can be firmly fixed at the wiring head, welding operation is not needed, the purpose of conveniently fixing the wiring position is achieved, and the problem that in order to guarantee stable fixation of the binding post and the photovoltaic junction box, welding operation is generally carried out at the wiring position is solved. And the wiring position is relatively inconvenient to fix.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic junction boxes, in particular to a solar cell assembly junction box. Background Art

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

[0003] After the existing photovoltaic junction box is connected to the terminal post on the photovoltaic panel, in order to ensure the stability of the terminal post and the photovoltaic junction box, welding work is generally performed at the junction. In this way, the junction is inconvenient to fix, which reduces the installation efficiency of the junction box. Therefore, a solar cell module junction box is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a solar cell module junction box, which has the advantages of being easy to fix the wiring connection, etc., and solves the problem that welding work is generally performed at the wiring connection to ensure the stable fixation of the terminal post and the photovoltaic junction box, which makes it inconvenient to fix the wiring connection, thereby reducing the installation efficiency of the junction box.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solar cell module junction box, comprising a box body, a junction board is fixedly installed inside the box body, a junction head is arranged on the junction board, a fixing mechanism is arranged on the front of the box body, a box cover is fixedly installed on the top of the box body, and a positioning mechanism is arranged inside the box body for facilitating the fixing of the wiring.

[0006] Furthermore, the positioning mechanism includes a U-shaped movable plate, a clamping block, a fixed block, a fixing bolt and a threaded sleeve. The U-shaped movable plate is rotatably installed inside the box body and outside the terminal block. The bottom of the U-shaped movable plate is fixedly installed with a clamping block, the back center of the U-shaped movable plate is fixedly installed with a fixing block, the rear end of the inner bottom wall of the box body is fixedly installed with a threaded sleeve, the top of the fixing block is threadedly connected to a fixing bolt having one end extending into the interior of the threaded sleeve, and the fixing bolt is threadedly connected to the threaded sleeve.

[0007] Furthermore, a wiring port is provided on the inner bottom wall of the box body and below the wiring head, and the threaded sleeve is located at the rear side of the wiring port.

[0008] Furthermore, the fixing mechanism includes a wiring sleeve, an arc-shaped clamping plate, a first clip and a first clamping block. The wiring sleeve is embedded in the front of the box body, and arc-shaped clamping plates are movably installed on both ends of the front of the wiring sleeve. The top and bottom of the outer peripheral wall of the arc-shaped clamping plate on the right side are fixedly installed with the first clip, and the top and bottom of the outer peripheral wall of the arc-shaped clamping plate on the left side are fixedly installed with the first clamping block, and the first clip matches the first clamping block.

[0009] Furthermore, a sealing rubber ring is fixedly installed on the bottom of the box cover, second buckles are fixedly installed on the tops of the left and right sides of the box body, and second clamping blocks are fixedly installed on the left and right sides of the box cover.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0011] 1. The solar cell module junction box, through the positioning mechanism, can firmly fix the terminal post at the terminal head when in use, without the need for welding operation, thereby achieving the purpose of facilitating the fixing of the wiring joint and solving the problem that welding operation is generally performed at the wiring joint to ensure the stable fixation of the terminal post and the photovoltaic junction box, thus making the fixing of the wiring joint inconvenient.

[0012] 2. The solar cell module junction box can clamp and fix the cables through the provided fixing mechanism, effectively avoiding the loosening of the cables during use and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the positioning mechanism structure of the utility model;

[0015] Figure 3 For this utility model Figure 1 Enlarged view of point A in the middle;

[0016] Figure 4 It is a front view of the utility model.

[0017] In the figure: 1 box body, 11 second buckle, 12 second clamping block, 2 wiring board, 3 wiring head, 4 positioning mechanism, 41 U-shaped movable plate, 42 clamping block, 43 fixing block, 44 fixing bolt, 45 threaded sleeve, 5 fixing mechanism, 51 wiring sleeve, 52 arc clamping plate, 53 first buckle, 54 first clamping block, 6 box cover, 61 sealing rubber ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0019] See also Figure 1-4 A solar cell module junction box in this embodiment includes a box body 1, a junction board 2 is fixedly installed inside the box body 1, a junction head 3 is arranged on the junction board 2, a fixing mechanism 5 is arranged on the front of the box body 1, a box cover 6 is fixedly installed on the top of the box body 1, and a positioning mechanism 4 is arranged inside the box body 1 for fixing the wiring.

[0020] In this embodiment, the positioning mechanism 4 includes a U-shaped movable plate 41, a clamping block 42, a fixing block 43, a fixing bolt 44 and a threaded sleeve 45. The U-shaped movable plate 41 is rotatably installed inside the box body 1 and outside the wiring board 2. The bottom of the U-shaped movable plate 41 is fixedly installed with a clamping block 42, and the center of the back of the U-shaped movable plate 41 is fixedly installed with a fixing block 43. The rear end of the inner bottom wall of the box body 1 is fixedly installed with a threaded sleeve 45. The top of the fixing block 43 is threadedly connected to a fixing bolt 44 with one end extending into the inside of the threaded sleeve 45, and the fixing bolt 44 is threadedly connected with the threaded sleeve 45;

[0021] A wiring port is provided on the inner bottom wall of the box body 1 below the wiring head 3 , and the threaded sleeve 45 is located at the rear side of the wiring port.

[0022] Specifically, after the terminal of the photovoltaic panel is inserted into the terminal head 3, the terminal is bent forward, the U-shaped movable plate 41 is flipped backward, and the fixing bolt 44 is tightened to drive the clamping block 42 to fit tightly with the terminal. In this way, the terminal can be firmly fixed at the terminal head 3 without the need for welding, thereby achieving the purpose of facilitating the fixing of the terminal.

[0023] In this embodiment, the fixing mechanism 5 includes a wiring sleeve 51, an arc-shaped clamping plate 52, a first clip 53 and a first clamping block 54. The wiring sleeve 51 is embedded in the front of the box body 1, and arc-shaped clamping plates 52 are movably installed on the left and right ends of the front of the wiring sleeve 51. The top and bottom of the outer peripheral wall of the right arc-shaped clamping plate 52 are fixedly installed with the first clip 53, and the top and bottom of the outer peripheral wall of the left arc-shaped clamping plate 52 are fixedly installed with the first clamping block 54. The first clip 53 matches the first clamping block 54, and an arc-shaped sealing ring is fixedly installed inside the arc-shaped clamping plate 52.

[0024] Specifically, the cable is passed through the wiring sleeve 51 into the box body 1 and fixed on the wiring board 2, and the arc-shaped clamping plates 52 on both sides are moved close to the cable side until the first clamping block 54 is inserted into the first buckle 53, so that the arc-shaped clamping plates 52 on both sides can be fixed, thereby completing the clamping and fixing of the cable, and effectively preventing the cable from loosening during use; the arc-shaped sealing ring can play a sealing role to prevent rainwater, dust, etc. from entering the box body 1 from the wiring sleeve 51.

[0025] In this embodiment, a sealing rubber ring 61 is fixedly installed on the bottom of the box cover 6 , second buckles 11 are fixedly installed on the tops of the left and right sides of the box body 1 , and second clamping blocks 12 are fixedly installed on the left and right sides of the box cover 6 .

[0026] Specifically, the provision of the sealing rubber ring 61 makes the interior of the box body 1 in a relatively sealed environment, achieving waterproof and dustproof effects; the provision of the second buckle 11 and the second clamping block 12 facilitates the disassembly and assembly of the box cover 6 .

[0027] The working principle of the above embodiment is:

[0028] Place the box body 1 close to the back of the photovoltaic panel, and pass the photovoltaic panel's terminal through the wiring port and insert it into the terminal head 3, bend the terminal forward, apply structural adhesive around the box body 1, and fix the box body 1 on the back of the photovoltaic panel;

[0029] Flip the U-shaped movable plate 41 backwards, tighten the fixing bolts 44 to drive the pressing block 42 to fit tightly with the terminal, so that the terminal can be firmly fixed on the terminal head 3;

[0030] Insert the cable from the wiring sleeve 51 into the box body 1 and fix it on the wiring board 2. Move the arc-shaped clamping plates 52 on both sides toward the cable side until the first clamping block 54 is clamped into the first clamping buckle 53. Then, the arc-shaped clamping plates 52 on both sides can be fixed, thereby completing the clamping and fixing of the cable, effectively preventing the cable from loosening during use.

[0031] The box cover 6 is buckled and the second buckle 11 is snapped into the second clamping block 12 to complete the assembly of the entire junction box. During use, the setting of the sealing rubber ring 61 makes the interior of the box body 1 in a relatively sealed environment, which has the effect of waterproofing and dustproofing.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] 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 solar cell module junction box, comprising a box body (1), a junction board (2) fixedly mounted inside the box body (1), a junction head (3) arranged on the junction board (2), a fixing mechanism (5) arranged on the front of the box body (1), and a box cover (6) fixedly mounted on the top of the box body (1), characterized in that: A positioning mechanism (4) is provided inside the box body (1) for facilitating fixing of the wiring connection.

2. A solar cell module junction box according to claim 1, characterized in that: The positioning mechanism (4) comprises a U-shaped movable plate (41), a pressing block (42), a fixing block (43), a fixing bolt (44) and a threaded sleeve (45); the U-shaped movable plate (41) is rotatably mounted inside the box body (1) and outside the wiring board (2); the pressing block (42) is fixedly mounted on the bottom of the U-shaped movable plate (41); the fixing block (43) is fixedly mounted on the back center of the U-shaped movable plate (41); the threaded sleeve (45) is fixedly mounted on the rear end of the inner bottom wall of the box body (1); the top of the fixing block (43) is threadedly connected to a fixing bolt (44) having one end extending into the interior of the threaded sleeve (45); and the fixing bolt (44) is threadedly connected to the threaded sleeve (45).

3. A solar cell module junction box according to claim 2, characterized in that: A wiring port is provided on the inner bottom wall of the box body (1) and below the wiring head (3), and the threaded sleeve (45) is located at the rear side of the wiring port.

4. A solar cell module junction box according to claim 1, characterized in that: The fixing mechanism (5) comprises a wiring sleeve (51), an arc-shaped clamping plate (52), a first clip (53) and a first clamping block (54); the wiring sleeve (51) is embedded in the front face of the box body (1); arc-shaped clamping plates (52) are movably mounted on both left and right ends of the front face of the wiring sleeve (51); the first clip (53) is fixedly mounted on the top and bottom of the outer peripheral wall of the right arc-shaped clamping plate (52); the first clamping block (54) is fixedly mounted on the top and bottom of the outer peripheral wall of the left arc-shaped clamping plate (52); the first clip (53) matches the first clamping block (54).

5. A solar cell module junction box according to claim 1, characterized in that: A sealing rubber ring (61) is fixedly mounted on the bottom of the box cover (6), second buckles (11) are fixedly mounted on the top ends of the left and right sides of the box body (1), and second clamping blocks (12) are fixedly mounted on the left and right sides of the box cover (6).

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