Foldable bus bar, circuit connection structure and imbricated assembly

Abstract

The invention provides a foldable bus bar which comprises a body, a plurality of connecting blocks are arranged on one side of the body, and the connecting blocks are welded to pad points on the side,close to the output end, of the front face of a battery piece in an aligned mode and folded towards the back face of the battery piece along the edge of the side, close to the output end, of the battery piece together with the body. The utility model invention also provides a circuit connection structure for connecting battery pieces by adopting the foldable bus bar, and an imbricate assembly forelectric connection by adopting the circuit connection structure. According to the foldable bus bar designed by the invention, the connection mode of an the imbricate assembly circuit is improved, the utilization rate of the area of a the battery piece can be improved, and the overall output power of the imbricate assembly is improved; under the condition that the creepage distance and the imbricate assembly are kept unchanged, the bus bar of the structure can enables the length of a battery string to be increased by about 4-10 mm on the whole under the condition that the creepage distance and the imbricate assembly are kept unchanged, the effective light receiving area is increased by 0.2-0.5%, and the power of the assembly can be improved by about 1-2.5 W on the imbricate assembly of astandard edition.

Description

technical field [0001] The invention belongs to the technical field of stacking of solar shingled components, in particular to a foldable bus bar, a circuit connection structure and a shingled component. Background technique [0002] The current design of the negative terminal circuit in the shingled module is mainly to weld the bus bar to the back electrode of the cell, and then make a bus connection, but this design will cause the last cell to only serve as a carrier for connecting the circuit. and unable to generate electricity. For the power generation base of shingled module modules placed in batches over a large area, if the circuit design structure of such shingled modules cannot be improved, it will cause the last cell in each shingled module to fail to generate electricity, resulting in multiple groups of placed There will be many cells in the shingled module that cannot be used for power generation, which will cause serious waste of the overall cells and make it d...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a foldable bus bar, a circuit connection structure and a shingled assembly, especially suitable for the electrical connection of large-sized battery sheets, and solves the problem of the negative terminal of the shingled assembly caused by the unreasonable design of the bus bar structure in the prior art. The circuit connection structure occupies a large creepage distance, which reduces the effective light-receiving area of ​​the shingled module and makes it difficult to gain overall output power.

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