Novel photovoltaic module

Abstract

The invention discloses a novel photovoltaic module. The photovoltaic module comprises a plurality of battery strings, each batter string comprises a plurality of battery pieces connected in series through welding strips, an overlapping region is arranged between each two adjacent battery pieces in the battery strings, and buffer strips are arranged at the positions, close to the overlapping regions and between the adjacent welding strips, of the battery pieces. The two ends of the buffer strips are connected with the welding strips, or there is a gap between the two ends of the buffer stripsand the welding strips. The widths of the overlapping regions are 0-2mm. There is no piece distance between the battery pieces to greatly utilize the module space and improve the module efficiency, the buffer strips arranged at the overlapping regions of the battery pieces are employed to increase the stress areas at the overlapping positions of the battery pieces, and the previous welding stripsbearing the laminating pressure is changed to increase the stress bearing by the whole overlapping regions and the buffer strips so as to greatly reduce the piece breakage rate and the EL hidden crackratio.

Description

technical field [0001] The invention belongs to the technical field of photovoltaics, and in particular relates to a novel photovoltaic module. Background technique [0002] Photovoltaic module technology has been very mature. The typical single-glass photovoltaic module structure is mainly packaged by glass, EVA, cell array, EVA, and backplane; the typical double-glass module is packaged by glass, EVA, cell array, and EVA glass. to make. The battery array is formed by connecting multiple battery strings in series or in parallel, and the battery string is formed by connecting multiple battery slices in series. [0003] In the prior art, there is a gap between the cells in the photovoltaic module, usually above 2mm. Due to the existence of the gap between the cells, energy will be lost at the gap between the cells of the module, thus reducing the efficiency of the module. Contents of the invention [0004] In order to solve the above problems, the present invention provid...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there is a gap between the cells in the photovoltaic module, usually above 2mm. Due to the existence of the gap between the cells, energy will be lost at the gap between the cells of the module, thus reducing the efficiency of the module

Images