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Cell stringing method and string welding machine

A battery sheet and stringing technology, which is applied in the direction of welding equipment, tin feeding device, auxiliary device, etc., can solve problems such as whitening and difficulty in ensuring the accuracy of grid lines

Pending Publication Date: 2017-08-11
WUXI AUTOWELL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has certain defects. When the cell uses more grid lines, such as 12 grids, 18 grids, 24 grids or even 36 grids, it is difficult to ensure the accuracy of the grid line position, and defects such as exposed white are prone to occur.

Method used

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  • Cell stringing method and string welding machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 As shown, a string welding machine includes: a welding ribbon feeding device 1 for providing a fixed-length welding ribbon; a welding ribbon pulling device 2 for pulling the fixed-length welding ribbon and placing it on the welding ribbon buffer platform 3; Ribbon conveying device 4, for conveying the fixed-length welding ribbon from the welding ribbon buffer platform 3 to the conveying device 5, the fixed-length welding ribbon is laid on the battery slices on the conveying device 5; and a welding device 6. The conveying device 5 transports the fixed-length welding tape and the battery sheet to the welding position, and is welded into a string by the welding device 6 . The stringer also includes a cell feeding device 9 and a cell conveying device 8 . The cell conveying device 8 conveys the cell from the cell feeding device 9 to the conveying device 5 . The rear channel of the welding device 6 is also provided with a string-out device 7 for stringing the b...

Embodiment 2

[0028] like figure 2 As shown, the difference between the second embodiment and the first embodiment is that the string welding machine adopts two sets of welding strip pulling devices, welding strip buffering platform, welding strip conveying device, conveying device and welding device respectively. And share a set of cell feeding device and cell transporting device.

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PUM

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Abstract

The invention relates to a cell stringing method. The cell stringing method comprises the steps that a fixed-length welding strip provided by a welding strip feeding device is placed on a welding strip temporary storage platform through a welding strip traction device; then, a welding strip conveying device conveys the fixed-length welding strip from the welding strip temporary storage platform to a transportation device, and the welding strip is laid on cells on the transportation device; and then, the welding strip and the cells are conveyed to a welding device under the transportation action of the transportation device, the fixed-length welding strip and the cells are in welded joint, and a cell string is formed. A string welding machine comprises the welding strip traction device, the welding strip temporary storage platform, the welding strip conveying device, the transportation device and the welding device. According to the cell stringing method and the string welding machine, the welding strip conveying method is adopted, and the fixed-length welding strip is conveyed through the welding strip conveying device from the welding strip temporary storage platform to the transportation device, so that the string welding machine is applicable to production of multi-main grid assemblies, and the white line exposing phenomenon is obviously improved.

Description

technical field [0001] The invention relates to a method for stringing solar cells and a string welding machine, and belongs to the technical field of photovoltaic equipment. Background technique [0002] The stringer is a commonly used welding equipment in the automatic welding production of battery cells. The traditional stringer is usually compatible with 2 grids to 6 grids. The ribbon pulling device is used to directly pull the fixed-length ribbon from the ribbon feeding device to the conveyor belt. on the battery cell position. However, this method has certain defects. When the cells use more grid lines, such as 12 grids, 18 grids, 24 grids or even 36 grids, it is difficult to ensure the accurate position of the grid lines, and it is easy to produce defects such as whitening. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a method for stringing battery sheets, which can be adapted to the production of multi-busbar assemblies and ...

Claims

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Application Information

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IPC IPC(8): B23K3/06B23K3/08
CPCB23K3/0607B23K3/08B23K3/087
Inventor 李文季斌斌徐青
Owner WUXI AUTOWELL TECH