Crystalline silicon component

Abstract

The invention discloses a crystalline silicon component which comprises a substrate and battery pieces connected in series to the substrate, wherein the battery pieces are arranged in rows and columns; the number of rows of the battery pieces is smaller than that of columns of the battery pieces; and bypass diodes are connected in parallel between the nth column of battery pieces and the (n+1) the column of battery pieces, wherein n is an odd number. According to the invention, a horizontal arrangement mode in which the number of rows is smaller than that of columns and the bypass diodes are connected in parallel between the nth column of battery pieces and the (n+1) the column of battery pieces; compared with the conventional longitudinal arrangement mode in which the number of rows is greater than that of columns in the prior art, the crystalline silicon component has the advantages that the number of battery pieces connected in parallel with the bypass diodes is reduced; the crystalline silicon component has a partial hot spot effect, so that the number of short-circuit battery pieces is reduced when the corresponding bypass diodes are conducted; and therefore, drop of output power of the whole component is also correspondingly reduced.

Description

technical field [0001] The invention relates to the technical field of crystalline silicon components, in particular to an arrangement of cells in a crystalline silicon component. Background technique [0002] During the actual use of crystalline silicon modules, when some of the cells are cracked or partially shaded so that their electrical properties do not match those of other cells that are working normally, these cells will not only be unable to support the components. Contributing to the power output, it will instead become an actual energy-consuming unit, consuming the electric energy generated by other cells. What's more, the heat generated by the power consumption of these detuned cells may cause them to burn themselves, causing the entire crystalline silicon module to be scrapped. This is the hot spot effect of the module. [0003] For crystalline silicon modules whose cells are purely connected in series, in order to prevent the occurrence of hot spot effects, i...

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Problems solved by technology

[0005] In the above connection mode, when a hot spot effect occurs on a certain cell and the bypass diode takes effect and turns on, it will cause the two strings of cells where this cell is located to be all short-circuited (for a 60-cell module 20 cells, 24 cells for a 72-cell module), which will cause 1 / 3 of the cells to be short-circuited, and the output power of the module will also be reduced by 1 / 3

Due to the detuning of the electrical performance of one or several cells, the power output of the whole module is reduced so much, which obviously seriously affects the utilization of the module.

[0006] Therefore, how to provide a crystalline silicon component that can reduce the reduction of the power output of the whole component when the bypass diode is turned on due to the local hot spot effect of the crystalline silicon component is a technical problem urgently needed to be solved by those skilled in the art.

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