A strip shaper and a back contact cell string welding machine

In the production of back-contact battery strings, the solder strip shaping device utilizes the design of the mold base and support platform to form an arc-shaped protrusion on the solder strip, solving the problem of solder strip misalignment and improving the electrical connection stability and production efficiency of the battery strings.

CN224543760UActive Publication Date: 2026-07-24WUXI AUTOWELL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI AUTOWELL TECH
Filing Date
2025-06-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

During the production of back-contact battery strings, the solder ribbons may shift relative to the conveyor platform due to inertia, resulting in some solder ribbons in the battery string failing to accurately connect to the grid lines of the battery cells after welding, affecting the stability of the electrical connection and production efficiency.

Method used

A welding strip shaping device is adopted. Through the coordinated design of the mold base and the support platform, the welding strip is formed into several arc-shaped protrusions, which increases the friction and compensates for the shrinkage of the welding strip after cooling, thus ensuring a stable connection between the welding strip and the battery cell.

Benefits of technology

This effectively prevents the welding strip from slipping on the conveyor platform, ensuring the relative positional stability of the welding strip and the battery cell, and improving the accuracy of electrical connections and the production efficiency of battery strings.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224543760U_ABST
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Abstract

The application provides a welding strip shaping device and a back contact battery string welding machine. The welding strip shaping device comprises a plurality of welding strip shaping mechanisms arranged along a first direction. Each welding strip shaping mechanism comprises a bearing table and a die seat. The die seat is capable of being lifted relative to the bearing table. The bearing table has a bearing surface for bearing the welding strip. The bearing surface of the bearing table is provided with a groove. The die seat has a pressing surface for pressing the welding strip in cooperation with the bearing surface. The pressing surface of the die seat is provided with a bending protrusion corresponding to the groove. The size of the bending protrusion in the vertical direction is smaller than the groove depth. The bending protrusion and the groove extend along a direction perpendicular to the first direction. The first direction is the length direction of the welding strip laid on the bearing surface. After the welding strip is placed on the bearing surface of the bearing table, the die seat is lowered and gradually approaches the bearing table. The bending protrusion abuts against the welding strip and presses the contacted welding strip into the groove, so that the welding strip in this part is bent. The other part of the welding strip is clamped by the pressing surface of the die seat and the bearing surface of the bearing table, so that the other part of the welding strip remains in a flat state.
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