Solder strip positioning method used for series welding of photovoltaic battery pieces
A positioning technology for photovoltaic cells and ribbons, applied in welding equipment, auxiliary devices, metal processing equipment, etc., can solve the problem that the elastic needle pressing mechanism cannot meet the positioning requirements of ribbons, and achieve the goal of simplifying the structure of serial welding equipment and ensuring quality Effect
Pending Publication Date: 2021-02-12
SUZHOU AUTOWAY SYST
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Problems solved by technology
[0004] In view of the above problems, the present invention provides a ribbon positioning method for photovoltaic cell string welding, which can solve the problem that the existing elastic needle pressing mechanism cannot meet the ribbon positioning requirements under the current thin grid line process state of photovoltaic cells
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[0016] The present invention relates to a welding ribbon positioning method for photovoltaic cell string welding, which adopts a rigid connection method between the position of the welding ribbon 10 near the head end and / or near the tail end and the silver grid on the photovoltaic cell sheet 20 for spot fixing. , the way of rigid connection includes laser welding or gluing; the way of rigid connection includes laser welding or gluing, and the number of fixed points does not exceed two. figure 1 In the embodiment, there are 11 welding ribbons in total.
[0017] figure 1 Among them, the A end is the head end of the welding strip, and the B end is the tail end of the welding strip; thus, the fixed position scheme of the above-mentioned points of the present invention is as follows:
[0018] Option 1, Rigid connection is made between the welding ribbon 10 and the silver grid of the photovoltaic cell 20 through points A1 and A2;
[0019] Option 2, Rigid connection between the wel...
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Abstract
The invention provides a solder strip positioning method used for series welding of photovoltaic battery pieces. The solder strip positioning method can solve the problem that an existing elastic needle pressing mechanism cannot meet the solder strip positioning requirement in the current photovoltaic battery piece thin grid line process state. Point fixation is carried out between the positions,close to the head ends and / or the tail ends, of solder strips and a silver grid on the photovoltaic battery pieces in a rigid connection manner, and the rigid connection manner comprises a laser welding manner or an adhesive manner. An elastic needle pressing mechanism of a complex structure is not needed to be adopted for positioning and pressing the solder strips, it can be guaranteed that the photovoltaic battery pieces can be accurately aligned with each solder strip, and therefore the phenomenon of white exposure after the solder strips and the battery pieces are welded is effectively avoided, and the quality of a photovoltaic module is ensured.
Description
technical field [0001] The invention relates to the technical field of photovoltaic module production, in particular to a welding ribbon positioning method for string welding of photovoltaic cells. Background technique [0002] In the production process of photovoltaic modules, it is necessary to use ribbons to connect a large number of photovoltaic cells in series, and then laminate the connected photovoltaic cells to form photovoltaic modules; at present, electromagnetic welding is mainly used for string welding of photovoltaic cells method or infrared welding method, when infrared welding is used, the welding ribbon is positioned on the grid line of the photovoltaic cell through the elastic needle pressing mechanism, such as a welding ribbon positioning device disclosed in the Chinese invention patent with the announcement number CN210081047U. It presses the solder ribbon on the photovoltaic cell by fixing a plurality of pressing pin assemblies on the support plate, where...
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IPC IPC(8): B23K3/08
CPCB23K3/08B23K3/087
Inventor 鲁乾坤彭刘辉
Owner SUZHOU AUTOWAY SYST