Processing method of segmented welding strip for connecting head and tail battery pieces and segmented welding strip

Abstract

The invention discloses a segmented welding strip and a processing method of the segmented welding strip for connecting a head battery piece and a tail battery piece, and the processing method of the segmented welding strip for connecting the head battery piece and the tail battery piece comprises the following steps: respectively stretching a front welding section and a back welding section of a welding unit; according to the invention, the stretched length of the welding unit makes up for the length lacked when the head and the tail of each string of battery pieces are welded, so that the welding connection of the head and the tail of the battery pieces of the battery string is realized through one stretched welding unit, and compared with the welding connection of the head and the tail of the battery pieces of the battery string through two welding units in the prior art, the welding connection is realized; and the waste of segmented welding strips caused when the head and tail battery pieces are connected is reduced.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a processing method and a segmented welding strip for connecting head-to-tail battery sheets. Background technique [0002] Photovoltaic modules include multiple battery strings, and each battery string includes multiple battery sheets. Photovoltaic modules mainly rely on the front side of the battery sheet to absorb light to output power externally, and the existence of the front side of the battery sheet will block part of the light. Keep the contact area between the ribbon and the cell as small as possible; while the backside of the photovoltaic module has a low utilization rate of light, the contact area between the ribbon and the cell can be appropriately increased to reduce the thickness of the ribbon and improve the thickness of the ribbon. Welding ability. [0003] In the prior art, segmented ribbons are generally used to meet the demand for ribbons on the front and ...

AI Technical Summary

Problems solved by technology

In the prior art, two ribbon units are usually used to connect the first and last cells of the battery string. At this time, the segmented ribbons need to be cut, resulting in waste of the segmented ribbons. The wasted length of the segmented ribbons is one The length of the ribbon unit - the length of the reserved ribbon for the tail cell - the length of the reserved ribbon for the first cell

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