Photovoltaic module junction box testing device

Abstract

The invention relates to the technical field of junction boxes, in particular to a photovoltaic module junction box testing device, after a cable part is subjected to drawing detection through a first clamping block and a second clamping block, the first clamping block and the second clamping block can fix the falling-off cable part on a junction box body, and the cable part and the junction box body are transferred to a welding station together for welding operation. The junction box body and the falling cable part do not need to be sorted, and the falling cable part does not need to be inserted into the junction box body again manually or through a mechanical arm, so that the process steps are simplified; a photovoltaic module junction box testing device comprises a second box body, a first movable block, a first clamping block, a second movable block, a screw rod, a first connecting block, a second connecting block, a second clamping block, a protruding block and a driving assembly. A second box body is connected to the inner side of the first box body in a pluggable mode. A plurality of movable blocks I are slidably connected to the box body II in a damping manner; each first movable block is fixedly connected with a first clamping block. A plurality of second movable blocks are connected to the second box body in a sliding mode.

Description

Technical Field

[0001] The present invention relates to the technical field of junction boxes, and more specifically, to a photovoltaic module junction box testing device. Background Art

[0002] In the prior art, when testing a photovoltaic junction box, the photovoltaic junction box is first fixed, and then the cable of the photovoltaic junction box is fixed on a tensioner, and the cable is pulled by the tensioner until the cable end falls off from the welding point, so as to measure the ultimate tensile strength of the cable. However, when the photovoltaic junction box that has undergone the above-mentioned testing operation is subsequently reworked, the junction box and the fallen cable need to be sorted and then transported to a welding workshop respectively, and then the fallen cable needs to be reinserted into the junction box before the cable end can be soldered. The operation process is cumbersome and inefficient.

[0003] In summary, the present application proposes a photovoltaic module junction box testing device to improve the above-mentioned technical problems. Summary of the invention

[0004] In order to overcome the disadvantage of low efficiency of reprocessing a photovoltaic junction box after inspection in the prior art, the present invention provides a photovoltaic module junction box testing device.

[0005] Technical solution: A photovoltaic module junction box test device comprises a chassis and a box body 1; the box body 1 is fixedly connected to the chassis; the box body 2, a movable block 1, a clamping block 1, a movable block 2, a screw, a connecting block 1, a connecting block 2, a clamping block 2, a convex block and a driving component are also included; the box body 1 is pluggably connected to the inner side of the box body 2; a plurality of movable blocks 1 are connected to the box body 2 in a damping sliding manner; each movable block 1 is fixedly connected to a clamping block 1; a plurality of movable blocks 2 are slidably connected to the box body 2; each movable block 2 is rotatably connected to a screw , the screw is screwed to the box body 2; each movable block 2 is fixedly connected to a connecting block 1; each connecting block 1 is connected to a connecting block 2 in a damping sliding manner; each connecting block 2 is fixedly connected to a clamping block 2, and the cable part is clamped and fixed by the cooperation of the clamping block 1 and the clamping block 2; each movable block 1 is fixedly connected to a convex block; each connecting block 2 is provided with a groove, and the convex block is located on the inner side of the corresponding groove; a driving component is connected to the chassis, and the driving component is used to drive the movable block 1 to move horizontally.

[0006] As an improvement of the above scheme, in the above photovoltaic module junction box testing device, the driving assembly includes a telescopic cylinder, a tension sensor, a connecting block three, a round rod and a connecting block four; a number of telescopic cylinders are fixedly connected to the chassis; a tension sensor is fixedly connected to the telescopic end of each telescopic cylinder; each active part of the tension sensor is fixedly connected to a connecting block three; each connecting block three is fixedly connected to a round rod; each active block one is fixedly connected to a connecting block four, and the connecting block four is plugged into the corresponding round rod.

[0007] As an improvement of the above solution, in the photovoltaic module junction box testing device, the edge of the round rod is chamfered.

[0008] As an improvement of the above-mentioned scheme, the above-mentioned photovoltaic module junction box testing device also includes a limit assembly, which includes a limit block 1, a connecting block 5 and a limit block 2; a number of limit blocks 1 are fixedly connected to the box body 2, and the limit block 1 is slidably connected to the corresponding clamping block 1; each movable block 2 is fixedly connected to a connecting block 5; each connecting block 5 is fixedly connected to a limit block 2, and the limit block 2 is slidably connected to the corresponding clamping block 2.

[0009] As an improvement of the above solution, the photovoltaic module junction box testing device further includes a latch; a plurality of latches are slidably connected to the box body 2, and the latches are plugged into the corresponding movable block 1.

[0010] As an improvement of the above solution, in the above photovoltaic module junction box testing device, the inner diameter of limit block one is larger than the inner diameter of clamp block one; the inner diameter of limit block two is larger than the inner diameter of clamp block two.

[0011] As an improvement of the above solution, in the above photovoltaic module junction box testing device, the inner side surfaces of the limit block 1 and the limit block 2 are both set to be smooth surfaces.

[0012] As an improvement of the above solution, in the photovoltaic module junction box testing device, heat dissipation holes are opened on the chassis.

[0013] As an improvement of the above solution, in the photovoltaic module junction box testing device, a knob is provided on the top of the screw rod, and anti-slip grooves are provided on the outside of the knob.

[0014] As an improvement of the above solution, in the photovoltaic module junction box testing device, the edge of the protrusion is chamfered.

[0015] Beneficial effects: 1. After the cable part is pulled out and tested by clamp block 1 and clamp block 2, clamp block 1 and clamp block 2 can fix the detached cable part on the junction box body, and transfer it to the welding station for welding operation. Compared with the prior art, there is no need to sort the junction box body and the detached cable part, and there is no need to reinsert the detached cable part into the junction box body manually or by a mechanical arm, which simplifies the process steps and is conducive to improving efficiency. The parts on the box body 2 are used as jigs. After multiple sets are set for use, the detection and welding can be realized in an assembly line operation, which further improves the efficiency. At the same time, during the process of pulling and inserting the cable part, the cable part will always be covered by the inner side of clamp block 1, clamp block 2, limit block 1 and limit block 2 to avoid bending of the cable part, thereby avoiding the problem of incomplete resetting of the cable part; 2. When the clamping blocks 1 and 2 just touch the cable part, a gap will be formed between the cable part and the limit blocks 1 and 2. After the clamping blocks 1 and 2 clamp the cable part, the cable part is squeezed and slightly bulges, and bulges into the gap, and will not be pressed tightly on the inner walls of the limit blocks 1 and 2, avoiding interference with the insertion operation of the cable part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the first viewing angle structure of the photovoltaic module junction box testing device of the present invention is shown; Figure 2 The schematic diagram of the structure of the box body 1 and the box body 2 of the present invention is shown; Figure 3 A second viewing angle structural schematic diagram of the photovoltaic module junction box testing device of the present invention is shown; Figure 4 A schematic diagram of the structure of the drive assembly of the present invention is shown; Figure 5 An exploded view of a photovoltaic module junction box testing device of the present invention is shown; Figure 6 An exploded view of the clamping block 1, the clamping block 2, the limiting block 1 and the limiting block 2 of the present invention is shown; Figure 7 The schematic diagram of the structure of the clamping block 1, the clamping block 2, the limiting block 1 and the limiting block 2 of the present invention is shown.

[0017] Names of the numbers in the figure: 1-chassis, 2-box body one, 3-box body two, 4-movable block one, 5-clamp block one, 6-movable block two, 7-screw, 8-connecting block one, 9-connecting block two, 10-clamp block two, 11-bump, 12-junction box, 201-telescopic cylinder, 202-tension sensor, 203-connecting block three, 204-round rod, 205-connecting block four, 206-limit block one, 207-connecting block five, 208-limit block two, 209-pin, 91-groove, 92-cable part. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1 A photovoltaic module junction box testing device, such as Figure 1-Figure 6 As shown, it includes a chassis 1 and a box body 2; the chassis 1 is bolted with a box body 2, and the box body 2 is made of plastic; it also includes a box body 3, a movable block 4, a clamping block 5, a movable block 6, a screw 7, a connecting block 8, a connecting block 9, a clamping block 10, a protrusion 11 and a driving component; the inner side of the box body 2 is pluggably connected with the box body 3, and the main body of the junction box 12 is inserted into the inner side of the box body 3; the box body 3 is connected to two movable blocks 4 in a damping sliding manner; each movable block 4 is welded with a clamping block 5; the box body 3 is connected to the inner side of the box body 3; There are two movable blocks 2 6 in the sliding connection; each movable block 2 6 is rotatably connected to a screw rod 7, and the screw rod 7 is screwed to the box body 2 3; each movable block 2 6 is welded with a connecting block 1 8; each connecting block 1 8 is connected with a connecting block 2 9 in a damping sliding manner; each connecting block 2 9 is welded with a clamping block 2 10; each movable block 1 4 is welded with a protrusion 11; each connecting block 2 9 is provided with a groove 91, and the protrusion 11 is located on the inner side of the corresponding groove 91; a driving component is connected to the chassis 1.

[0020] The driving assembly includes a telescopic cylinder 201, a tension sensor 202, a connecting block three 203, a round rod 204 and a connecting block four 205; two telescopic cylinders 201 are bolted to the chassis 1; a tension sensor 202 is fixedly connected to the telescopic end of each telescopic cylinder 201; a connecting block three 203 is fixedly connected to the movable part of each tension sensor 202; a round rod 204 is welded to each connecting block three 203; a connecting block four 205 is welded to each movable block one 4, and the connecting block four 205 is plugged into the corresponding round rod 204, the telescopic cylinder 201 drives the tension sensor 202 to move, the tension sensor 202 drives the connecting block three 203 to move, the connecting block three 203 drives the round rod 204 to move, and the round rod 204 drives the connecting block four 205 to move, so that the connecting block four 205 drives the movable block one 4 to move horizontally.

[0021] The edge of the round rod 204 is chamfered to make it easier for the round rod 204 to be inserted into the connecting block 205.

[0022] It also includes a limiting assembly, which includes a limiting block 1 206, a connecting block 5 207 and a limiting block 2 208; two limiting blocks 1 206 are welded on the box body 2 3, and the limiting block 1 206 is slidably connected to the corresponding clamping block 1 5; each movable block 2 6 is bolted with a connecting block 5 207; each connecting block 5 207 is welded with a limiting block 2 208, and the limiting block 208 is slidably connected to the corresponding clamping block 2 10, and the cable part 92 is guided and limited by cooperating with the connecting block 5 207 and the limiting block 2 208.

[0023] The box body 2 3 is slidably connected to two latches 209, which are plugged into the corresponding movable block 4, and the movable block 4 is fixed by the latch 209.

[0024] Clamping operation: manually twist the screw rod 7 so that the screw rod 7 drives the movable block 2 6 to slide upward in the box body 2 3, and the movable block 2 6 drives the parts thereon to move upward, so that the clamp block 2 10 moves upward away from the clamp block 1 5, and then manually insert the junction box 12 body into the box body 2 3, and put the cable part 92 into the inner side of the clamp block 1 5, and then manually twist the screw rod 7 so that the screw rod 7 drives the movable block 2 6 to slide downward in the box body 2 3, and the movable block 2 6 drives the parts thereon to move downward, so that the clamp block 2 10 is re-fastened on the upper side of the clamp block 1 5, and at this time, the cable part 92 is clamped by the cooperation of the clamp block 1 5 and the clamp block 2 10.

[0025] Detection operation: manually pull the latch 209 away from the movable block 1 4, start the telescopic cylinder 201, the telescopic cylinder 201 drives the tension sensor 202 to move forward, the tension sensor 202 drives the connecting block 3 203 to move forward, the connecting block 3 203 drives the round rod 204 to move forward, the round rod 204 drives the connecting block 4 205 to move forward, the connecting block 4 205 drives the movable block 1 4 to slide forward on the box body 2 3, the movable block 1 4 drives the clamping block 1 5 to move forward, and at the same time, the movable block 1 4 drives the protrusion 11 to move forward, the protrusion 1 1 drives the connecting block 2 9 to slide forward on the connecting block 1 8, and the connecting block 2 9 drives the clamping block 2 10 to move forward, so that the clamping block 1 5 and the clamping block 2 10 simultaneously pull the cable part 92 forward. In this process, the tension sensor 202 monitors the tension in real time. When the tension value is detected to drop suddenly, it indicates that the end of the cable part 92 falls off from the welding point position of the junction box 12 body. At this time, the telescopic cylinder 201 is immediately controlled to stop moving, and the tensile strength of the cable part 92 is calculated by the maximum tension value measured by the tension sensor 202.

[0026] Reset operation: After the test is completed, the telescopic cylinder 201 controls the clamping block 15 and the clamping block 210 to move back to their original positions, so that the clamping block 15 and the clamping block 210 insert the cable part 92 back to their original positions. Then, the latch 209 is manually reinserted into the movable block 14 to fix it, thereby fixing the clamping block 15 on the movable block 14. At the same time, the movable block 14 fixes the connecting block 29 through the protrusion 11, thereby fixing the clamping block 10 on the connecting block 29. Then, the box body 23 is taken out of the box body 12 upward, so that the connecting block 4 205 moves upward away from the round rod 204. At this time, the box body 23 and the parts thereon act as a jig. , fixed on the junction box 12 body and the cable part 92, then the jig, the junction box 12 body and the cable part 92 are transferred to the welding station together, and then the cable part 92 is re-soldered on the junction box 12 body to complete the rework operation. Compared with the prior art, there is no need to sort the junction box 12 body and the detached cable part 92, and there is no need to reinsert the detached cable part 92 into the junction box 12 body manually or by a robotic arm, which simplifies the process steps and is conducive to improving efficiency. The parts on the box body 2 3 are used as jigs. After setting up multiple sets for use, the detection and welding can be realized in an assembly line operation, which further improves efficiency.

[0027] During the process of reinserting the cable portion 92 into the main body of the junction box 12, if the friction between the cable portion 92 and the main body of the junction box 12 is too great, the end of the cable portion 92 will bend after being subjected to the insertion force, thereby causing the cable portion 92 to not be inserted into place. Therefore, during the clamping process, the movable block 26 and the parts thereon are driven upward by the screw 7, so that the clamp block 20 moves upward away from the clamp block 1 5, and the limit block 208 moves upward away from the limit block 1 206. Then, the main body of the junction box 12 is manually inserted into the box body 2 3, and the cable portion 92 is placed on the inner side of the clamp block 1 5 and the limit block 1 206. Then, the movable block 26 and the parts thereon are driven downward by the screw 7, so that the clamp block 1 5 and the clamp block 10 clamp the cable portion 92 and the limit block 1 208 moves upward away from the limit block 1 206. 6 and limit block 208 are located on the outside of the cable portion 92. During the test, the clamp block 1 5 and the clamp block 2 10 drive the cable portion 92 to move forward, while the limit block 1 206 and the limit block 2 208 remain stationary, so that the clamp block 1 5 and the clamp block 2 10 slide forward on the limit block 1 206 and the limit block 2 208 respectively, so that the cable portion 92 is always covered by the inner side of the clamp block 1 5, the clamp block 2 10, the limit block 1 206 and the limit block 2 208. During the resetting process, the clamp block 1 5 and the clamp block 2 10 drive the cable portion 92 to move backward. At this time, the limit block 1 206 and the limit block 2 208 cooperate to limit and guide the cable portion 92 to avoid bending of the cable portion 92, thereby avoiding the problem of incomplete resetting of the cable portion 92.

[0028] In summary: after the cable part 92 is pulled out and tested by the clamp block 1 5 and the clamp block 2 10, the clamp block 1 5 and the clamp block 2 10 can fix the detached cable part 92 on the junction box 12 body, and transfer it to the welding station for welding operation. Compared with the prior art, there is no need to sort the junction box 12 body and the detached cable part 92, and there is no need to reinsert the detached cable part 92 into the junction box 12 body manually or by a robotic arm, which simplifies the process steps and is conducive to improving efficiency. The parts on the box body 2 3 are used as jigs. After setting up multiple sets for use, the detection and welding can be realized in an assembly line operation, further improving the efficiency. At the same time, during the process of pulling and inserting the cable part 92, the cable part 92 will always be covered by the inner side of the clamp block 1 5, the clamp block 2 10, the limit block 1 206 and the limit block 2 208 to avoid bending of the cable part 92, thereby avoiding the problem of incomplete resetting of the cable part 92.

[0029] Example 2 On the basis of Example 1, Figure 7 As shown, the inner diameter of the limit block 1 206 is larger than the inner diameter of the clamp block 1 5 ; the inner diameter of the limit block 208 is larger than the inner diameter of the clamp block 2 10 .

[0030] The inner side surfaces of the limiting block 1 206 and the limiting block 208 are both configured as smooth surfaces to reduce friction.

[0031] The chassis 1 is provided with heat dissipation holes for dissipating heat from the electrical components inside the chassis 1.

[0032] A knob is provided on the top of the screw rod 7, and anti-slip grooves are provided on the outside of the knob, so that it is easier to manually turn the screw rod 7.

[0033] The edge of the protrusion 11 is chamfered to make it easier for the protrusion 11 to be inserted into the groove 91 .

[0034] After the clamping block 15 and the clamping block 2 10 clamp the cable part 92, the outer part of the cable part 92 outside the clamping position will be slightly raised, causing the position of the cable part 92 outside the clamping position to be in close contact with the limit block 1 206 and the limit block 2 208, so that when the cable part 92 is subsequently inserted back into the main body of the junction box 12, the cable part 92 will be subjected to a large friction force, which interferes with the insertion operation. Therefore, the inner diameter of the limit block 1 206 is set to be larger than the inner diameter of the clamping block 15, and the limit block 2 208 is set to be larger than the inner diameter of the clamping block 15. The inner diameter of 8 is set to be larger than the inner diameter of the clamp block 10. During the clamping process, when the clamp blocks 1 5 and 2 10 just contact the cable portion 92, a gap will be formed between the cable portion 92 and the limit blocks 1 206 and 2 208. After the clamp blocks 1 5 and 2 10 clamp the cable portion 92, the cable portion 92 is squeezed and slightly bulges, and the bulges into the gap and will not be pressed tightly against the inner walls of the limit blocks 1 206 and 2 208, thereby avoiding interference with the insertion operation of the cable portion 92.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A photovoltaic module junction box testing device, comprising a chassis (1); a box body (2) is fixedly connected to the chassis (1); wherein: The box body 1 (2) is pluggably connected to the box body 2 (3) on the inner side; a plurality of movable blocks 1 (4) are connected to the box body 2 (3) in a damping sliding manner; each movable block 1 (4) is fixedly connected to a clamping block 1 (5); a plurality of movable blocks 2 (6) are connected to the box body 2 (3) in a sliding manner; each movable block 2 (6) is rotatably connected to a screw rod (7), and the screw rod (7) is screwed to the box body 2 (3); each movable block 2 (6) is fixedly connected to a connecting block 1 (8); each connecting block 1 (8) is connected to a damping sliding manner. A connecting block (9) is connected; each connecting block (9) is fixedly connected to a clamping block (10), and the cable portion (92) is clamped and fixed by the clamping block (5) and the clamping block (10) cooperating with each other; each movable block (4) is fixedly connected to a protrusion (11); each connecting block (9) is provided with a groove (91), and the protrusion (11) is located inside the corresponding groove (91); a driving assembly is connected to the chassis (1), and the driving assembly is used to drive the movable block (4) to move horizontally.

2. A photovoltaic module junction box testing device according to claim 1, characterized in that: The driving assembly comprises a telescopic cylinder (201), a tension sensor (202), a connecting block three (203), a round rod (204) and a connecting block four (205); a plurality of telescopic cylinders (201) are fixedly connected to the chassis (1); a tension sensor (202) is fixedly connected to the telescopic end of each telescopic cylinder (201); a movable part of each tension sensor (202) is fixedly connected to a connecting block three (203); a round rod (204) is fixedly connected to each connecting block three (203); a connecting block four (205) is fixedly connected to each movable block one (4), and the connecting block four (205) is plugged into the corresponding round rod (204).

3. A photovoltaic module junction box testing device according to claim 2, characterized in that: The edge of the round rod (204) is provided with a chamfer.

4. A photovoltaic module junction box testing device according to claim 2, characterized in that: The invention also comprises a limit assembly, which comprises a limit block 1 (206), a connecting block 5 (207) and a limit block 2 (208); a plurality of limit blocks 1 (206) are fixedly connected to the box body 2 (3), and the limit blocks 1 (206) are slidably connected to the corresponding clamping blocks 1 (5); each movable block 2 (6) is fixedly connected to a connecting block 5 (207); each connecting block 5 (207) is fixedly connected to a limit block 2 (208), and the limit blocks 2 (208) are slidably connected to the corresponding clamping blocks 2 (10).

5. A photovoltaic module junction box testing device according to claim 4, characterized in that: It also includes a latch (209); a plurality of latches (209) are slidably connected to the box body 2 (3), and the latches (209) are plugged into the corresponding movable block 1 (4).

6. A photovoltaic module junction box testing device according to claim 5, characterized in that the limit block The inner diameter of the first (206) is larger than the inner diameter of the first clamping block (5); the inner diameter of the second limit block (208) is larger than the inner diameter of the second clamping block (10).

7. A photovoltaic module junction box testing device according to claim 6, characterized in that: The inner side surfaces of the first limiting block (206) and the second limiting block (208) are both configured as smooth surfaces.

8. A photovoltaic module junction box testing device according to any one of claims 1 to 7, characterized in that: The chassis (1) is provided with heat dissipation holes.

9. A photovoltaic module junction box testing device according to claim 8, characterized in that: A knob is provided at the top of the screw rod (7), and anti-slip grooves are provided on the outer side of the knob.

10. A photovoltaic module junction box testing device according to claim 9, characterized in that: The edge of the projection (11) is provided with a chamfer.

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