A kind of photovoltaic module and preparation method thereof

Abstract

The invention discloses a photovoltaic component and a preparation method thereof. The photovoltaic module includes at least two battery strings connected in parallel, and the battery string includes a plurality of battery slices connected in series; the battery string includes a first substring and a second substring connected in series, and the first substring and the second substring The connection point is the series connection point; the first jumper, all the series connection points are connected to the first jumper; the first auxiliary wire, each first substring is connected in antiparallel to the first two poles through the first jumper and the first auxiliary wire tube; the second auxiliary wire, each second sub-string connects the second diode in antiparallel through the first jumper wire and the second auxiliary wire; wherein, the battery slice is a third slice cut from the whole battery slice The battery slice; at least one of the first diode and the second diode is arranged in the same junction box. The technical solution provided by the embodiments of the present invention avoids the problem of reverse breakdown of the diodes that is easily caused when the number of cells in the photovoltaic module is increased.

Description

technical field [0001] Embodiments of the present invention relate to the field of photovoltaic power generation, and in particular to a photovoltaic module and a preparation method thereof. Background technique [0002] With the continuous development of photovoltaic power generation technology, photovoltaic modules are gradually being used in various fields of social life and are favored by users. [0003] figure 1 It is a schematic circuit diagram of a photovoltaic module in the prior art. Such as figure 1 As shown, the photovoltaic module in the prior art includes 12 battery strings 1, every two battery strings 1 form a series structure 2, every two series structures 2 form a parallel structure 3, and each parallel structure 3 is connected in series, wherein, each A battery string 1 is composed of a plurality of battery slices 5 connected in series, and two series structures 2 in each parallel structure 3 are antiparallel connected with a diode 4 . figure 1 In the a...

AI Technical Summary

Problems solved by technology

At this time, the number of battery slices 8 protected by each diode 9 is the number of battery slices 8 in the parallel structure 7, that is, the total number of battery slices 8 in the two battery strings 6. Therefore, the number of battery slices 8 in the battery string 6 is limited by The limitation of the reverse withstand voltage capability of the diode 9 prevents the increase of the total number of cells 8 in the photovoltaic module, which affects the improvement of the performance of the photovoltaic module

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