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Series welding machine and series welding method for battery pieces

A technology for battery slices and stringers, which is applied to circuits, electrical components, conveyor objects, etc., can solve the problems of easy displacement, too many welding strips, and the welding strip cannot accurately weld the busbars, etc., to prevent the welding strip from rolling. , Automatic and reliable welding, improve welding accuracy and work efficiency

Pending Publication Date: 2018-04-06
WUXI AUTOWELL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More grid lines will lead to more ribbons required, and thin grid lines require thinner ribbons
In addition, the welding ribbon used in the welding of the multi-bar series welding machine is a round ribbon, which is easy to roll and is prone to displacement during the production process, resulting in the inaccurate welding of the ribbon to the main grid.

Method used

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  • Series welding machine and series welding method for battery pieces
  • Series welding machine and series welding method for battery pieces
  • Series welding machine and series welding method for battery pieces

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0040] figure 1 It is a structural schematic diagram of a cell stringer according to an embodiment of the present invention, Figure 4 It is a schematic diagram of placement of battery slices and thin round ribbons in a battery stringer according to an embodiment of the present invention. Such as figure 1 and Figure 4 As shown, the cell stringer of this embodiment is used to weld the first part of the fixed-length ribbon to the busbar on the upper surface of the previous cell, and weld the second part of the fixed-length ribbon On the busbar on the lower surface of the latter cell.

[0041] In this embodiment, the cell stringer includes a welding delivery device 6 , a glue dispensing device 7 and a welding device 9 . Among them, the welding conveying device 6 is used to transport the battery sheet; the dispensing device 7 is used to adhere the fixed-length thin round ribbon to the main grid line of the battery sheet, and make the thin round ribbon be synchronously transpo...

no. 2 example

[0052] figure 2 It is a structural schematic diagram of a cell stringer according to another embodiment of the present invention, Figure 4 It is a schematic diagram of placement of battery slices and thin round ribbons in a battery stringer according to an embodiment of the present invention. Such as figure 2 and Figure 4 As shown, the cell stringer of this embodiment is used to weld the first part of the fixed-length ribbon to the busbar on the upper surface of the previous cell, and weld the second part of the fixed-length ribbon On the busbar on the lower surface of the latter cell.

[0053] In this embodiment, the cell stringer includes a welding delivery device 6 , a glue dispensing device 7 and a welding device 9 . Among them, the welding conveying device 6 is used to transport the battery sheet; the dispensing device 7 is used to adhere the fixed-length thin round ribbon to the main grid line of the battery sheet, and make the thin round ribbon be synchronously ...

no. 3 example

[0062] image 3 It is a structural schematic diagram of a cell stringer according to another embodiment of the present invention, Figure 4 It is a schematic diagram of placement of battery slices and thin round ribbons in a battery stringer according to an embodiment of the present invention. Such as image 3 and Figure 4 As shown, the cell stringer of this embodiment is used to weld the first part of the fixed-length ribbon to the busbar on the upper surface of the previous cell, and weld the second part of the fixed-length ribbon On the busbar on the lower surface of the latter cell.

[0063] In this embodiment, the cell stringer includes a welding delivery device 6 , a glue dispensing device 7 and a welding device 9 . Among them, the welding conveying device 6 is used to transport the battery sheet; the dispensing device 7 is used to adhere the fixed-length thin round ribbon to the main grid line of the battery sheet, and make the thin round ribbon be synchronously tr...

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PUM

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Abstract

The invention provides a series welding machine for battery pieces. The series welding machine comprises a welding and conveying device, an adhesive dispensing device and a welding device. The weldingand conveying device is used for conveying battery pieces. The adhesive dispensing device is used for adhering a fixed-length thin and round solder strip onto the main grid line of a battery piece, and synchronously conveying the thin and round solder strip together with the battery piece. The welding device is used for welding the thin and round solder strip with the main grid line adhered withthe thin and round solder strip. The invention also provides a series welding method for battery pieces. The method is applied to the series welding machine for battery pieces. According to the invention, the solder strip and the battery piece, which are relatively adhered together, can be synchronously conveyed. Meanwhile, the welding operation can be conducted automatically, reliably, accuratelyand efficiently.

Description

technical field [0001] The present invention generally relates to the field of battery production, and in particular, relates to a cell stringer and cell stringer welding method. Background technique [0002] At present, the demand for photovoltaic cell modules is increasing, and in the production process of photovoltaic cell There are many grid lines and thin grid lines. More grid lines will lead to more ribbons required, and thin grid lines require thinner ribbons. In addition, the ribbon used in the welding of the multi-bar series welding machine is a round ribbon, which is easy to roll and is prone to displacement during the production process, resulting in the inability of the ribbon to be accurately welded to the busbar. [0003] Therefore, how to improve the accuracy and efficiency of cell string welding, thereby improving the overall automation level of battery production, improving quality and reducing consumption, is an urgent problem to be solved in the industry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L21/677
CPCH01L31/188H01L21/6776Y02P70/50
Inventor 李文徐青季斌斌
Owner WUXI AUTOWELL TECH