Mobile positioning mechanism for photovoltaic cell interconnected electrode

Abstract

The invention discloses a mobile positioning mechanism for a photovoltaic cell interconnected electrode, which comprises a lower positioning body and an upper positioning body, wherein the lower positioning body comprises a lower limiting groove, lower suction holes and a lower air hole, the lower limiting groove is arranged in the lower positioning body, the lower limiting groove is internally provided with the lower suction holes, the lower suction holes are communicated with the lower air hole arranged in the lower positioning body, and the depth of the lower limiting groove is smaller than the height of a flat welding strip of the photovoltaic cell; and the upper positioning body comprises an upper limiting groove, upper suction holes and an upper air hole, the upper limiting groove is arranged in the upper positioning body, the upper limiting groove is internally provided with the upper suction holes, the upper suction holes are communicated with the upper air hole arranged in the upper positioning body, and the depth of the upper limiting groove is larger than the height of the flat welding strip of the photovoltaic cell. The mobile positioning mechanism for the photovoltaic cell interconnected electrode has the advantages that the operation is simple; the stability is high; the applicability is strong; and problems of grasping and aligning for various welding strips with over small cross sections and strong flexibility can be effectively solved.

Description

technical field [0001] The invention relates to a mobile positioning mechanism for photovoltaic cell interconnection electrodes, in particular to a tooling fixture used in the photovoltaic cell preparation process. Background technique [0002] Conventional photovoltaic cell interconnection electrodes are copper flat welding strips with a width of 1.0mm-2.0mm. When the battery slices are connected in series, the rolled flat ribbon should be flattened and straightened first, then cut to a certain length that can extend to the front and back electrodes of the battery at the same time, and then drag one end to place it on the front and back of the battery for printing At the position of the busbar, pressurize and heat to connect the two cells in series. Among them, the positioning and alignment of the flat ribbon with the bus electrodes on the front and back of the cell mainly depends on the flatness of the ribbon itself to ensure the positioning accuracy of its placement. Onc...

AI Technical Summary

Problems solved by technology

[0003] With the continuous improvement of solar cell module process technology, the industry's requirements for multi-busbar (more than conventional four-busbar or three-busbar) flat ribbons are continuously strengthened, but the increase in the number of busbars or flat ribbons will simultaneously It is required to reduce the cross-sectional area of ​​the flat welding strip, that is, the width and thickness of the flat welding strip will be correspondingly reduced at the same time, which will greatly reduce the flatness retention of the flat welding strip, so that it will become very soft even after it is straight. It is easy to bend and swing, and ultimately it is impossible to rely on its own straightness to achieve positioning and alignment. It must be assisted by other machinery to achieve accurate positioning

[0004] Even for busbars with large widths, many devices cannot achieve consistent alignment during production, which limits the performance of other performances of the entire device. In order to solve the accuracy of precise alignment and repeat alignment, we have to The use of complex visual positioning system greatly increases the manufacturing cost and complexity

[0005] The Chinese invention patent application with the application number 201410083983.X discloses a stealth packaging technology, which mainly uses a new type of interconnected ribbon with a triangular cross-section to replace the conventional flat ribbon. The size of this triangular ribbon is significantly smaller than the flat ribbon, and It is easy to bend and deform after being straight, so the dragging and moving method of conventional flat welding strips cannot be used. Dragging and uneven external force clamping will affect its straightness

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