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A bending step welding strip for photovoltaic modules and its processing technology

A photovoltaic module and step technology, applied in the field of bending step welding strip and its processing technology, can solve the problems of high pressure and easily broken cells

Active Publication Date: 2018-02-06
SUZHOU YOURBEST NEW TYPE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solder ribbons of these two methods are all planar structures. During the superposition process of EVA and glass in the subsequent process, due to the local concentration of pressure, the pressure on the point where the bus ribbon contacts the cells is too high, and the cells are easily broken.

Method used

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  • A bending step welding strip for photovoltaic modules and its processing technology
  • A bending step welding strip for photovoltaic modules and its processing technology

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Experimental program
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Embodiment approach

[0028] In order to achieve the purpose of the present invention, as shown in the figure, an embodiment of the present invention is:

[0029] A bent step welding ribbon for photovoltaic modules, characterized in that it includes: a first fold 1, a second fold 3 and a step portion 2, one end of the step portion 2 is connected to the first fold 1, and the step portion The other end of 2 is connected with the second folded edge 3 .

[0030] The beneficial effect of adopting the above technical solution is: there is a stepped portion between the first folded edge and the second folded edge, at the position where the solder ribbon contacts the cell, the lower plane of the stepped portion can fully contact the back plate or insulating material, forming Support, because there is a certain gap between the upper plane of the step and the back plate, it avoids the pressure from concentrating on the edge of the cell, and can disperse the pressure, which can effectively relieve the local p...

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Abstract

The invention discloses a bent step welding strip used for a photovoltaic assembly. The welding strip is characterized by comprising a first folded edge, a second folded edge and a step part. One end of the step part is connected with the first folded edge, and the other end of the step part is connected with the second folded edge. The welding strip has the advantages that the step part is arranged between the first folded edge and the second folded edge, due to the contact position of the welding strip and a battery piece, the lower plane of the step part can make full contact with a back plate or insulating material to form supporting, a certain gap is formed between the upper plane of the step part and the back plate so that pressure can be concentrated at one point on the edge of the battery piece and pressure can be dispersed, local pressure can be effectively relieved, and breaking of the battery piece is reduced.

Description

technical field [0001] The invention relates to the field of welding strips, in particular to a bent step welding strip for photovoltaic modules and a processing technology thereof. Background technique [0002] At present, the photovoltaic modules on the market are connected by ribbons. The cells are connected in series with interconnection ribbons, and then multiple interconnection ribbons are welded to the busbars. Finally, two busbars are connected to each other at a 90° angle. Lap welding to form an L-shaped ribbon or a single bent L-shaped ribbon to lead the current to the junction box. The ribbons of these two methods are all planar structures. During the superposition process of EVA and glass in the subsequent process, due to the local concentration of pressure, the pressure on the point where the confluence ribbon contacts the cells is too high, and the cells are easily broken. Contents of the invention [0003] In order to overcome the disadvantages of the above...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/05
CPCY02E10/50
Inventor 肖锋王兴
Owner SUZHOU YOURBEST NEW TYPE MATERIALS