Jig for welding solar photovoltaic module

Abstract

The utility model discloses a solar photovoltaic assembly welding jig which comprises a base, a welding assembly arranged in the middle of the interior of the base, a conveying belt arranged above the base, a welding jig arranged in the conveying belt, and positioning grooves formed in the conveying belt in an array mode. A battery cavity is formed in the middle of the upper portion of the welding jig, welding grooves are formed in the battery cavity in an array mode, limiting grooves are formed in the left side and the right side of each welding groove respectively, welding strips are arranged above the limiting grooves, and adsorption holes are formed in the bottoms of the limiting grooves, so that the accurate position of a battery piece in the welding process is guaranteed, and the welding quality is guaranteed; the three welding groove arrays are formed in the battery cavity, a plurality of welding spots can be welded at the same time, the welding efficiency is greatly improved, the welding spots can be adsorbed through the adsorption holes, the welding quality and precision are guaranteed, welding errors can be reduced through scaling powder of the welding spots at the bottom of the battery piece, and the welding process is smoother.

Description

Technical Field

[0001] The utility model belongs to the technical field related to solar photovoltaic components, and in particular relates to a welding jig for solar photovoltaic components. Background Art

[0002] Solar photovoltaic modules are devices that use the photoelectric effect to convert solar energy into electrical energy. Photovoltaic modules are usually composed of many solar cells, which convert photons in sunlight into electrons and generate electric current. Photovoltaic modules are one of the core components of solar power generation systems and are widely used in residential, commercial and industrial fields, as well as some mobile devices and outdoor equipment. Solar cells are the core of photovoltaic modules. They are made of semiconductor materials such as silicon and have a photoelectric effect. When sunlight shines on the cells, the semiconductor materials in the cells will generate electrons, thereby generating electric current. The electrical connection points between the cells are welded to each other using a welding process. This usually involves welding between the positive and negative poles of the cells to ensure that the current can flow smoothly.

[0003] However, the conventional welding process is that a machine grabs the solder ribbon and places it on the battery cell for direct welding. Due to the different precision of the welding machine, the solder ribbon is prone to deviation during the welding process, resulting in uneven carrier collection, affecting the efficiency and yield of the component, and the location of the cold solder joint will also affect the stability of the component. Cold solder joints and deviation in welding will lead to a decrease in component yield, increased costs, and increased rework. Utility Model Content

[0004] The purpose of the utility model is to provide a jig for welding solar photovoltaic modules to solve the problem that the conventional welding process proposed in the above background technology is that a machine grabs the welding strip and places it on the battery cell for direct welding. Due to the different precision of the welding machine, the welding strip is prone to deviation during the welding process, resulting in uneven carrier collection, affecting the efficiency and yield of the module, and the location of the cold weld will also affect the stability of the module. Cold welds and deviation in welding will lead to a decrease in the yield of the module, an increase in costs, and an increase in the problem of rework by personnel.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a jig for welding solar photovoltaic modules, comprising a base;

[0006] A welding assembly is arranged at the middle position inside the base, a welding head is arranged at the top position of the welding assembly, three welding heads are arranged in the welding head array, and the jig for welding the solar photovoltaic assembly is powered by an external power supply;

[0007] A conveyor belt is arranged above the base, a welding jig is arranged inside the conveyor belt, and a battery sheet is arranged at a middle position inside the welding jig.

[0008] Preferably, the conveyor belt is provided with a positioning groove in the internal array, the positioning groove corresponds to the welding jig, and an opening is provided at the bottom of the positioning groove.

[0009] Preferably, a battery cavity is provided at the middle position above the welding jig, an array of welding grooves is provided inside the battery cavity, three welding grooves are provided in the array, welding points are provided in an array at the bottom position of the battery cell, and flux is applied to the welding points at the bottom of the battery cell.

[0010] Preferably, the welding groove is provided with limit grooves on the left and right sides respectively, a welding strip is provided at the upper position of the limit groove, and an adsorption hole is provided at the bottom position of the limit groove.

[0011] Preferably, a hand piece is provided at the top of the welding jig, and slide grooves are respectively provided on the front and rear sides of the welding jig.

[0012] Preferably, the slide groove corresponds to the hand piece, the hand piece and the welding jig are slidably connected via the slide groove, and the bottom of the hand piece is embedded in the welding jig.

[0013] Preferably, the welding assembly welds the welding points by microwaves, the welding assembly is fixedly connected to the base, and the base is made of steel.

[0014] Compared with the prior art, the utility model provides a solar photovoltaic assembly welding jig, which has the following beneficial effects:

[0015] 1. Through the setting of conveyor belt, welding jig, positioning groove, battery cavity, welding groove, limit groove, welding belt and adsorption hole, the conveyor belt can automatically transport the battery cell to the position of the welding jig, which improves production efficiency and reduces the need for manual operation. The positioning groove corresponds to the welding jig, ensuring the accurate position of the battery cell during the welding process, thereby ensuring the welding quality. The battery cell in the middle position inside the welding jig can be operated through the opening on the welding jig, which is convenient for the staff to prepare before welding. There are three welding groove arrays inside the battery cavity, which can weld multiple welding points at the same time, greatly improving the welding efficiency. The limit grooves on the left and right sides of the welding groove can limit the movement of the welding belt, and the adsorption holes can adsorb the welding points. These all help to ensure the quality and accuracy of welding. The flux of the welding points at the bottom of the battery cell can reduce errors during welding and make the welding process smoother.

[0016] 2. By setting up the slide and the handpiece, the welding jig can be easily disassembled and assembled, making it simple and quick to remove the internal battery cells. In addition, the design of embedding the welding jig at the bottom of the handpiece also ensures stability during use and reduces errors caused by improper operation. Such a design can greatly improve work efficiency and reduce the time wasted due to cumbersome operating steps. At the same time, since the connection between the welding jig and the handpiece is relatively stable, the safety hazards caused by the loosening or falling of the handpiece can be effectively avoided during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the welding groove in the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the battery cell in the utility model.

[0020] Figure 4 It is a structural schematic diagram of the cross section of the welding fixture in the utility model.

[0021] In the figure: 1. Base; 2. Conveyor belt; 3. Welding fixture; 4. Battery cell; 5. Hand piece; 6. Welding groove; 7. Positioning groove; 8. Welding head; 9. Welding assembly; 10. Welding belt; 11. Limiting groove; 12. Battery cavity; 13. Adsorption hole; 14. Slide groove. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model provides Figure 1-4 A solar photovoltaic assembly welding jig is shown, comprising a base 1;

[0024] A welding assembly 9 is arranged at the middle position inside the base 1, a welding head 8 is arranged at the top position of the welding assembly 9, and three welding heads 8 are arranged in an array. The jig for welding the solar photovoltaic assembly is powered by an external power supply;

[0025] A conveyor belt 2 is arranged above the base 1 , a welding jig 3 is arranged inside the conveyor belt 2 , and a battery cell 4 is arranged at a middle position inside the welding jig 3 .

[0026] The conveyor belt 2 has an internal array of positioning grooves 7 , which correspond to the welding jig 3 , and an opening is provided at the bottom of the positioning groove 7 .

[0027] A battery cavity 12 is arranged in the middle position above the welding fixture 3, and an array of welding grooves 6 are arranged inside the battery cavity 12, and three welding grooves 6 are arranged in an array. Solder points are arranged in an array at the bottom position of the battery cell 4, and flux is applied to the solder points at the bottom of the battery cell 4.

[0028] Limiting grooves 11 are respectively arranged on the left and right sides of the welding groove 6 , a welding strip 10 is arranged above the limiting grooves 11 , and an adsorption hole 13 is arranged at the bottom of the limiting grooves 11 .

[0029] A hand piece 5 is provided at the top of the welding jig 3 , and slide grooves 14 are provided at the front and rear sides of the welding jig 3 .

[0030] The slide groove 14 corresponds to the hand piece 5 , the hand piece 5 and the welding fixture 3 are slidably connected through the slide groove 14 , and the bottom of the hand piece 5 is embedded in the welding fixture 3 .

[0031] The welding assembly 9 welds the welding points by microwaves. The welding assembly 9 is fixedly connected to the base 1, and the base 1 is made of steel material.

[0032] In this embodiment, the specific implementation steps of a jig for solar photovoltaic module welding are as follows: first, prepare the solar cell 4 and the circuit board of the module, ensure that the surface of the cell 4 is clean, the solder joints on the circuit board are exposed and clean, position the soldering strip 10 and the soldering points of the cell 4, perform infrared, ultraviolet, laser or electromagnetic welding, and vacuum adsorb the soldering strip 10 into a fixed welding jig 3. The welding jig 3 is designed according to the welding point position, and the soldering point is fixed and welded. At the same time, the cell 4 is placed in the battery cavity 12 in the welding jig 3 to improve the welding accuracy and prevent the battery from moving during the welding process. The soldering flux is applied to the surface of the cell. After the string welding is completed, the soldering points are visually inspected and electrically tested to ensure that the connection quality is good and the current can flow smoothly. The inspection may include checking whether the solder joints are complete, there are no cold solder joints or welding abnormalities, etc.

[0033] like Figure 1-4As shown, a conveyor belt 2 is arranged above the base 1, a welding jig 3 is arranged inside the conveyor belt 2, a battery cell 4 is arranged at the middle position inside the welding jig 3, a positioning groove 7 is arranged in an array inside the conveyor belt 2, the positioning groove 7 corresponds to the welding jig 3, an opening is arranged at the bottom position of the positioning groove 7, a battery cavity 12 is arranged in the middle position above the welding jig 3, a welding groove 6 is arranged in an array inside the battery cavity 12, three welding grooves 6 are arranged in an array, welding points are arranged in an array at the bottom position of the battery cell 4, and flux is applied to the welding points at the bottom of the battery cell 4, limiting grooves 11 are arranged on the left and right sides of the welding groove 6, a welding strip 10 is arranged above the limiting groove 11, and an adsorption hole 13 is arranged at the bottom position of the limiting groove 11.

[0034] Preferably, the soldering strip 10 is placed in the limiting groove of the welding jig 3, and the soldering strip 10 is vacuum adsorbed and fixed through the adsorption hole 13. At the same time, the battery cell 4 is placed in the battery cavity 12 in the welding jig 3 to improve the welding accuracy and prevent the battery from moving during the welding process. Flux is coated on the surface of the battery cell, and microwave welding is performed using the welding assembly 9. The positioning groove 7 is matched with the welding jig 9 to ensure the accuracy of the welding position. A battery cavity 12 is provided in the middle position above the welding jig 3 to place the battery cell 4. The solder joints at the bottom of the battery cell 4 are coated with flux to improve the welding quality. There is a limiting groove 11 on each side of the welding groove 6, which may be used to position the soldering strip 10.

[0035] like Figure 2-3 As shown, a hand piece 5 is provided at the top of the welding jig 3, and slide grooves 14 are respectively provided on the front and rear sides of the welding jig 3, the slide grooves 14 correspond to the hand piece 5, the hand piece 5 and the welding jig 3 are slidably connected through the slide grooves 14, and the bottom of the hand piece 5 is embedded in the welding jig 3.

[0036] Preferably, after welding is completed, the internal battery cell 4 can be taken out by pulling up the handheld portion 5. A handheld piece 5 is provided at the top of the welding jig 3 to provide an operating handle. The slide groove 14 matches the handheld piece 5 to allow the handheld piece 5 to be slidably connected. The handheld piece 5 can be connected to the welding jig through the slide groove 14, which is convenient for the operator to perform handheld operation. The bottom of the handheld piece 5 is embedded in the welding jig 9 and can be used for stable connection and operation.

[0037] like Figure 1 As shown, the welding assembly 9 welds the welding points by microwaves, and the welding assembly 9 is fixedly connected to the base 1, and the base 1 is made of steel material.

[0038] Optionally, using microwaves to weld the solder joints can significantly improve the stability and reliability of the solder joints. Microwave welding technology can provide uniform heat distribution and reduce welding defects caused by uneven temperature. Since the base 1 is made of steel material, this metal has good strength and toughness, so it can improve the durability and impact resistance of the entire structure. The rapid heating characteristics of microwave welding technology can shorten the welding time, improve production efficiency, and reduce energy consumption.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solar photovoltaic module welding jig, comprising a base (1); A welding assembly (9) is arranged at a middle position inside the base (1), a welding head (8) is arranged at a top position of the welding assembly (9), three welding heads (8) are arranged in an array, and the solar photovoltaic assembly welding jig is powered by an external power supply; Features: A conveyor belt (2) is arranged above the base (1), a welding jig (3) is arranged inside the conveyor belt (2), and a battery cell (4) is arranged at a middle position inside the welding jig (3).

2. A solar photovoltaic assembly welding jig according to claim 1, characterized in that: The conveyor belt (2) is provided with a positioning groove (7) in an array inside, the positioning groove (7) corresponds to the welding jig (3), and an opening is provided at the bottom of the positioning groove (7).

3. A solar photovoltaic assembly welding jig according to claim 2, characterized in that: A battery cavity (12) is arranged at the middle position above the welding fixture (3), and welding grooves (6) are arranged in an array inside the battery cavity (12), and three welding grooves (6) are arranged in an array, and welding points are arranged in an array at the bottom position of the battery cell (4), and the welding points at the bottom of the battery cell (4) are coated with flux.

4. A solar photovoltaic assembly welding jig according to claim 3, characterized in that: The welding groove (6) is provided with limiting grooves (11) on the left and right sides respectively, a welding strip (10) is provided above the limiting groove (11), and an adsorption hole (13) is provided at the bottom of the limiting groove (11).

5. The solar photovoltaic assembly welding jig according to claim 1, characterized in that: A hand piece (5) is provided at the top of the welding jig (3), and slide grooves (14) are respectively provided on the front and rear sides of the welding jig (3).

6. A solar photovoltaic assembly welding jig according to claim 5, characterized in that: The slide groove (14) corresponds to the hand piece (5); the hand piece (5) is slidably connected to the welding jig (3) via the slide groove (14); and the bottom of the hand piece (5) is embedded in the welding jig (3).

7. A solar photovoltaic assembly welding jig according to claim 1, characterized in that: The welding assembly (9) welds the welding points by microwaves; the welding assembly (9) is fixedly connected to the base (1); and the base (1) is made of steel.

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