Silicon solar cell stitch welding device

Abstract

The utility model discloses a silicon solar cell stitch welding device which comprises a stitch welding table, a containing groove formed in the top of the stitch welding table in the length direction and connected with the side walls of the two ends of the stitch welding table in a penetrating mode, and bearing blocks located on the left side and the right side of the containing groove and installed on the stitch welding table respectively. A reciprocating lead screw with a moving block is rotationally connected between the two bearing blocks symmetrically distributed relative to the containing groove, a welding head is installed at the bottom of the moving block, connecting plates with pressing strips installed at the bottoms are arranged on the two sides of the reciprocating lead screw in parallel, and the pressing strips and the connecting plates are arranged in parallel. A hydraulic cylinder is arranged below the two ends of the connecting plate and located on the stitch welding table, and the movable end of the hydraulic cylinder is fixedly connected with the connecting plate. The stitch welding device for the silicon solar cells is beneficial to improving the position accuracy of the solar cell panels, avoids the situation that the solar cells move in the welding process to cause the change of welding seams, and improves the welding effect of the solar cell panels.

Description

Technical Field

[0001] The utility model relates to the technical field of battery sheet stacking welding, in particular to a silicon solar battery sheet stacking welding device. Background Art

[0002] Solar panels, also known as photovoltaic panels, are devices that absorb sunlight and convert solar radiation energy directly or indirectly into electrical energy through photoelectric effect or photochemical effect. The main material of most solar panels is silicon. Solar panels are often processed by overlap welding. Special round wire welding strips are used to weld adjacent half-cells at a micro-pitch "overlap" to greatly reduce the cell spacing in the traditional welding process to only 0.2-0.5mm, achieving high energy density.

[0003] After searching, the patent publication number CN220161570U discloses "a new type of solar cell assembly welding device", including: a base, a placing component is arranged on the top of the base, a regular component is arranged on the top of the base, a welding component is arranged on the bottom of the regular component, and a delivery component is arranged on the top of the base. When the device is working, the battery to be welded first passes through two feeding conveyor belts to enter the fixed platform, and then the lifting platform is lowered, and at the same time, the hydraulic rod three is lowered, and the hydraulic rod four shrinks and tightens the regular plate to send the battery into the groove formed by the lowering of the lifting platform. The motor one starts to drive the welding gun to weld the battery. During the welding process, the welding groove determines the welding position. After the welding is completed, the hydraulic rod one and the hydraulic rod three shrink at the same time, and the welded solar cell is sent back to the fixed platform. Finally, the hydraulic rod two extends to send the battery into the conveyor belt and send it out of the device, and the welding operation is completed.

[0004] In the prior art, some welding devices are provided with grooves for embedding solar panels, but the solar panels are not fixed, which makes it difficult to avoid accidental touch by personnel causing the position of the solar panels to shift and causing the distance between the two solar panels to change, thus affecting the welding effect. Summary of the invention

[0005] The utility model aims to provide a silicon solar cell stack welding device, which is beneficial to improving the position accuracy of solar cell panels, avoiding the situation where the weld seam changes due to the movement of solar cells during welding, and improving the welding effect of solar cell panels.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a silicon solar cell stack welding device, used for welding the cell, comprising: a stack welding platform, located at the top of the stack welding platform and provided with a placement groove along the length direction, and the placement groove is connected with the side walls of both ends of the stack welding platform, and a bearing block is respectively installed on the left and right sides of the placement groove and on the stack welding platform, a reciprocating screw with a moving block is rotatably connected between two bearing blocks symmetrically distributed about the placement groove, and a welding head is installed at the bottom of the moving block;

[0007] A connecting plate with a clamping strip installed at the bottom is arranged in parallel on both sides of the reciprocating screw, and the clamping strip is arranged in parallel with the connecting plate. A hydraulic cylinder is arranged below the two ends of the connecting plate and on the lap welding table, and the movable end of the hydraulic cylinder is fixedly connected to the connecting plate.

[0008] The further improved scheme in the above technical scheme is as follows:

[0009] 1. In the above solution, the width of the placement groove is 1 to 2 times the length of the compression strip.

[0010] 2. In the above solution, the pressing strip and the connecting plate are connected via a plurality of fixing rods.

[0011] 3. In the above scheme, a slide groove is provided on the upper surface of the connecting plate along the length direction, a connecting rod is provided between the moving block and the slide groove, and the connecting rod is slidably connected to the slide groove at one end away from the moving block.

[0012] 4. In the above scheme, a second guide rod is arranged inside the slide groove, and one end of the connecting rod is slidably sleeved on the circumferential outer wall of the second guide rod, and the other end is rotationally connected to the moving block.

[0013] 5. In the above solution, a guide rod is disposed between the two bearing blocks and parallel to the reciprocating screw, and the moving block is slidably connected to the guide rod.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] The utility model discloses a silicon solar cell stack welding device, which is located at the top of the stack welding table and is provided with a placement groove along the length direction, a reciprocating screw with a moving block is rotatably connected between two bearing blocks symmetrically distributed about the placement groove, and a welding head is installed at the bottom of the moving block, and a connecting plate with a clamping strip installed at the bottom is arranged in parallel on both sides of the reciprocating screw, and the clamping strip is arranged in parallel with the connecting plate, and a hydraulic cylinder is arranged below the two ends of the connecting plate and on the stack welding table, and the movable end of the hydraulic cylinder is fixedly connected to the connecting plate, and the solar cell panel is initially positioned by embedding the solar cell panel into the placement groove, and the connecting plate with the clamping strip is arranged on both sides of the welding head, and the hydraulic cylinder is controlled to contract and drive the connecting plate to move downward, so that the clamping plate is pressed on the solar cell panel, which is beneficial to improving the position accuracy of the solar cell panel, avoiding the situation that the weld changes due to the movement of the solar cell during welding, and improving the welding effect of the solar cell panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 This is a schematic diagram of the overall structure of the silicon solar cell stack welding device of the utility model;

[0017] Attached Figure 2 The local structure of the silicon solar cell stack welding device of the utility model is shown in FIG. Figure 1 ;

[0018] Attached Figure 3 The local structure of the silicon solar cell stack welding device of the utility model is shown in FIG. Figure 2 ;

[0019] In the above drawings: 1. lap welding table; 2. placement groove; 3. bearing block; 4. hydraulic cylinder; 5. connecting plate; 6. clamping strip; 7. reciprocating screw; 8. moving block; 9. guide rod; 10. welding head; 11. fixed rod; 12. slide groove; 13. connecting rod; 14. second guide rod. DETAILED DESCRIPTION

[0020] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0021] Embodiment 1: A silicon solar cell stack welding device, used for welding cells, comprises: a stack welding platform 1, located at the top of the stack welding platform 1 and provided with a placement groove 2 along the length direction, and the placement groove 2 is connected to the side walls of the stack welding platform 1 at both ends, and a bearing block 3 is respectively installed on the left and right sides of the placement groove 2 and on the stack welding platform 1, a reciprocating screw 7 with a moving block 8 is rotatably connected between two bearing blocks 3 symmetrically distributed about the placement groove 2, and a welding head 10 is installed at the bottom of the moving block 8;

[0022] Push the stacked solar panels inward along the placement groove on the top of the stacking welding table and the bottom of the extrusion strip. After adjusting the position of the solar panels, use the output end of the hydraulic cylinder to drive the hydraulic rod to move the connecting plate downward, so that the compression strips on both sides of the welding head are against the two sides of the welding point, and after compression, the gap between the solar panels is fixed;

[0023] A connecting plate 5 with a clamping strip 6 installed at the bottom is arranged in parallel on both sides of the reciprocating screw 7, and the clamping strip 6 is arranged in parallel with the connecting plate 5. A hydraulic cylinder 4 is arranged below both ends of the connecting plate 5 and on the lap welding table 1, and the movable end of the hydraulic cylinder 4 is fixedly connected to the connecting plate 5;

[0024] When welding the solar panels, the starting motor drives the reciprocating screw to rotate, and the rotation of the reciprocating screw drives the moving block to move along the reciprocating screw and the guide rod, thereby driving the welding head at the bottom of the moving block to move along the weld between the solar panels, thereby welding the solar panels. By setting a connecting rod, when the moving block moves, the connecting rod moves along the second guide rod in the slide groove, thereby improving the stability of the moving block when moving.

[0025] The width of the placement groove 2 is 1.2 times the length of the pressing strip 6 .

[0026] The pressing strip 6 and the connecting plate 5 are connected via a plurality of fixing rods 11 .

[0027] A slide groove 12 is provided on the upper surface of the connecting plate 5 along the length direction. A connecting rod 13 is provided between the moving block 8 and the slide groove 12 , and the connecting rod 13 is slidably connected to the slide groove 12 at one end away from the moving block 8 .

[0028] A second guide rod 14 is disposed inside the slide groove 12 , and one end of the connecting rod 13 is slidably sleeved on the circumferential outer wall of the second guide rod 14 , and the other end is rotatably connected to the moving block 8 .

[0029] A guide rod 9 is disposed between the two bearing blocks 3 and parallel to the reciprocating screw 7 , and the moving block 8 is slidably connected to the guide rod 9 .

[0030] Embodiment 2: A silicon solar cell stack welding device, used for welding cells, comprises: a stack welding platform 1, located at the top of the stack welding platform 1 and provided with a placement groove 2 along the length direction, and the placement groove 2 is connected to the side walls of both ends of the stack welding platform 1, and a bearing block 3 is respectively installed on the left and right sides of the placement groove 2 and on the stack welding platform 1, and a reciprocating screw 7 with a moving block 8 is rotatably connected between two of the bearing blocks 3 symmetrically distributed about the placement groove 2, and a welding head 10 is installed at the bottom of the moving block 8;

[0031] A connecting plate 5 with a clamping strip 6 installed at the bottom is arranged in parallel on both sides of the reciprocating screw 7, and the clamping strip 6 is arranged in parallel with the connecting plate 5. A hydraulic cylinder 4 is arranged below both ends of the connecting plate 5 and on the lap welding table 1, and the movable end of the hydraulic cylinder 4 is fixedly connected to the connecting plate 5;

[0032] The solar panel is initially positioned by embedding the solar panel into the placement groove, and connecting plates with clamping strips are arranged on both sides of the welding head. The hydraulic cylinder is controlled to contract and drive the connecting plate to move downward, so that the clamping plate is pressed on the solar panel. This is beneficial to improving the positioning accuracy of the solar panel, avoiding the situation where the weld changes due to the movement of the solar cell during welding, and improving the welding effect of the solar panel.

[0033] The width of the placement groove 2 is 1.8 times the length of the pressing strip 6 .

[0034] A slide groove 12 is provided on the upper surface of the connecting plate 5 along the length direction. A connecting rod 13 is provided between the moving block 8 and the slide groove 12 , and the connecting rod 13 is slidably connected to the slide groove 12 at one end away from the moving block 8 .

[0035] A second guide rod 14 is disposed inside the slide groove 12 , and one end of the connecting rod 13 is slidably sleeved on the circumferential outer wall of the second guide rod 14 , and the other end is rotatably connected to the moving block 8 .

[0036] A guide rod 9 is disposed between the two bearing blocks 3 and parallel to the reciprocating screw 7 , and the moving block 8 is slidably connected to the guide rod 9 .

[0037] The connecting rod 13 is in an L-shape.

[0038] There are two guide rods 9 , and the two guide rods 9 are symmetrically arranged with respect to the reciprocating screw 7 .

[0039] The working principle is:

[0040] When in use, push the stacked solar panels inward along the placement groove on the top of the stacking welding table and the bottom of the extrusion strip. After adjusting the position of the solar panels, use the output end of the hydraulic cylinder to drive the hydraulic rod to move the connecting plate downward, so that the compression strips on both sides of the welding head are against the two sides of the welding point, and after compression, the gap between the solar panels is fixed;

[0041] When welding the solar panels, the starting motor drives the reciprocating screw to rotate, and the rotation of the reciprocating screw drives the moving block to move along the reciprocating screw and the guide rod, thereby driving the welding head at the bottom of the moving block to move along the weld between the solar panels, thereby welding the solar panels. By setting a connecting rod, when the moving block moves, the connecting rod moves along the second guide rod in the slide groove, thereby improving the stability of the moving block when moving.

[0042] When the above-mentioned silicon solar cell stack welding device is used, the solar cell panel is embedded in the placement groove to achieve the initial positioning of the solar cell panel, and connecting plates with clamping strips are arranged on both sides of the welding head, and the hydraulic cylinder is controlled to contract and drive the connecting plate to move downward, so that the clamping plate is pressed on the solar cell panel, which is beneficial to improve the position accuracy of the solar cell panel, avoid the situation where the weld changes due to the movement of the solar cell during the welding process, and improve the welding effect of the solar cell panel.

[0043] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A silicon solar cell stack welding device, used for welding cells, comprising: A lap welding platform (1), characterized in that: a placement groove (2) is arranged at the top of the lap welding platform (1) and along the length direction, and the placement groove (2) is connected to the side walls of the lap welding platform (1) at both ends, and a bearing block (3) is respectively installed on the left and right sides of the placement groove (2) and on the lap welding platform (1), a reciprocating screw (7) with a moving block (8) is rotatably connected between two bearing blocks (3) symmetrically distributed about the placement groove (2), and a welding head (10) is installed at the bottom of the moving block (8); A connecting plate (5) with a clamping strip (6) installed at the bottom is arranged in parallel on both sides of the reciprocating screw (7), and the clamping strip (6) is arranged in parallel with the connecting plate (5). A hydraulic cylinder (4) is arranged below the two ends of the connecting plate (5) and on the lap welding table (1), and the movable end of the hydraulic cylinder (4) is fixedly connected to the connecting plate (5).

2. The silicon solar cell stack welding device according to claim 1, characterized in that: The width of the placement groove (2) is 1 to 2 times the length of the compression strip (6).

3. The silicon solar cell stack welding device according to claim 1, characterized in that: The pressing strip (6) and the connecting plate (5) are connected via a plurality of fixing rods (11).

4. The silicon solar cell stack welding device according to claim 1, characterized in that: A slide groove (12) is provided on the upper surface of the connecting plate (5) along the length direction; a connecting rod (13) is provided between the moving block (8) and the slide groove (12); and the connecting rod (13) is slidably connected to the slide groove (12) at one end away from the moving block (8).

5. The silicon solar cell stack welding device according to claim 4, characterized in that: A second guide rod (14) is arranged inside the slide groove (12), and one end of the connecting rod (13) is slidably sleeved on the circumferential outer wall of the second guide rod (14), and the other end is rotatably connected to the moving block (8).

6. The silicon solar cell stack welding device according to claim 1, characterized in that: A guide rod (9) is disposed between the two bearing blocks (3) and parallel to the reciprocating screw (7), and the moving block (8) is slidably connected to the guide rod (9).

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