Triangular sectional type photovoltaic solder strip and tinning device

Abstract

The invention discloses a triangular sectional type photovoltaic solder strip and a tinning device, the triangular sectional type photovoltaic solder strip comprises at least one period of solder strip section, the single period of solder strip section comprises a reflection section and a back welding section, the reflection section is connected to a front grid line of a photovoltaic cell, the back welding section is connected to the back of an adjacent photovoltaic cell, and the reflection section is of a triangular strip-shaped structure. The reflection section comprises a waist surface usedfor reflection and a bottom surface connected with the photovoltaic cell, at least one groove parallel to the bottom surface is formed in the waist surface in a concave mode, and the surfaces of thereflection section and the back welding section are covered with tin layers. According to the triangular photovoltaic solder strip provided by the invention, the V-shaped groove parallel to the bottomsurface is formed in the waist surface of the reflection section, so that the redundant tin liquid can be conveniently blown away by an air knife along the groove after tinning while illumination reflection is facilitated. According to the tinning device, the derailment detection mechanisms are arranged in front of and behind the tinning device to conduct alarm detection on derailment of the basebody, and the tinning quality of the base body is guaranteed.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a triangular segmented photovoltaic ribbon and a tinning device. Background technique [0002] In recent years, the number of solar cell busbars has become a hot topic among people. Cell manufacturers have increased the number of busbars from 3 to 4, 5 or even 6 from the perspective of improving efficiency, and component manufacturers have continuously reduced the amount of silver paste used in cells from the perspective of reducing costs, and the number of busbars has become more and more Thin, the number of busbar lines increased to a dozen or even dozens. These two technical routes to increase the number of busbars are respectively called multi-busbar and no busbar technology. The two technologies lead to the same goal, and have even more advantages in terms of high performance and low cost. The shape of the existing multi-busbar and busbar-less components is mostly fl...

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