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High-efficiency photovoltaic solder strip

A photovoltaic ribbon, a high-efficiency technology, applied in photovoltaic power generation, electrical components, circuits, etc., can solve the problem of reduced reflective reuse ability, achieve the effect of optimizing the reflective reuse rate and increasing the effective reflective reuse area

Pending Publication Date: 2020-02-11
FUNDANT JIANGSU ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is: in order to solve the problem that in the prior art, when the triangular welding ribbon is welded, the solder will reunite at the middle part of the hypotenuse, causing the two hypotenuses of the triangular welding ribbon to protrude greatly in the middle. The arc-shaped surface leads to the problem that its reflective reuse ability is reduced, and now a high-efficiency photovoltaic ribbon is provided

Method used

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  • High-efficiency photovoltaic solder strip
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  • High-efficiency photovoltaic solder strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] like figure 2 , image 3 and Figure 4 As shown, a high-efficiency photovoltaic welding ribbon: includes a conductive base strip 1, the conductive base strip 1 is covered with a solder layer 2, the conductive base strip 1 has two sides 3, and the upper ends of the two sides 3 are close to each other to form a narrow portion 4. The lower ends are far away from each other to form a wide part 5. At least one reunion structure is provided on both sides of the conductive base tape 1, so that the outer surface covered on the side surface 3 of the conductive base tape 1 approaches an inclined plane. The inclined plane is the predetermined An effective reflective surface 6 is provided;

[0055] The agglomeration structure includes a fin part 8 arranged at the bottom of the side 3, the upper surface of the fin part 8 is docked with the side 3 on the side where it is located, the side 3 is a slope inclined outward from top to bottom, and the upper surface of the fin part 8 is ...

Embodiment 2

[0062] like Figure 7 and Figure 8 As shown, a high-efficiency photovoltaic welding ribbon: includes a conductive base strip 1, the conductive base strip 1 is covered with a solder layer 2, the conductive base strip 1 has two sides 3, and the upper ends of the two sides 3 are close to each other to form a narrow portion 4. The lower ends are far away from each other to form a wide part 5. At least one reunion structure is provided on both sides of the conductive base tape 1, so that the outer surface covered on the side surface 3 of the conductive base tape 1 approaches an inclined plane. The inclined plane is the predetermined An effective reflective surface 6 is provided;

[0063] The agglomeration structure is an inwardly recessed agglomeration groove 7 on the side surface 3 .

[0064] There are at least two agglomeration grooves 7 on each side 3 at intervals, and the cross-sectional shape of the agglomeration groove 7 is arc-shaped, V-shaped or trapezoidal, wherein the ...

Embodiment 3

[0069] like Figure 9 and Figure 10 As shown, a high-efficiency photovoltaic welding ribbon: includes a conductive base strip 1, the conductive base strip 1 is covered with a solder layer 2, the conductive base strip 1 has two sides 3, and the upper ends of the two sides 3 are close to each other to form a narrow portion 4. The lower ends are far away from each other to form a wide part 5. At least one reunion structure is provided on both sides of the conductive base strip 1, so that the outer surface covered on the side 3 of the conductive base strip 1 approaches an inclined plane after the automatic serial welding is completed. The inclined plane is the preset effective reflective surface 6;

[0070] The agglomeration structure is an inwardly recessed agglomeration groove 7 on the side surface 3 .

[0071] There is one agglomeration groove 7 on each side 3, and the cross-sectional shape of the agglomeration groove 7 is arc-shaped, V-shaped or trapezoidal, and connects th...

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Abstract

The invention relates to a high-efficiency photovoltaic solder strip. A conductive base band is provided with two side surfaces. Upper ends of the two side surfaces are close to each other to form a narrow part. Lower ends are far from each other to form a wide part. At least one agglomeration structure is arranged on each of the two sides of the conductive base band. After welding, an outer surface of a solder covering the side surface of the conductive base band approaches to an inclined plane. The inclined plane is a preset effective light reflection multiplexing surface. Through arrangement of the agglomeration structure, solder layers on the two side surfaces of the conductive base band are agglomerated after being melted, and the outer surfaces of the two sides of the solder strip can be in a shape similar to the inclined plane after welding is completed so that the outer surfaces of the two sides of the solder strip can be close to the preset effective light reflection multiplexing surface. The effective light reflection multiplexing area is increased, and meanwhile, most or all of the reflected light on the outer surfaces of the two sides of the solder strip can be totallyreflected on a glass-air interface layer of a photovoltaic cell module or directly reflected to the surface of a cell sheet so that optimization of a light reflection multiplexing rate of the solder strip is realized.

Description

technical field [0001] The invention relates to the technical field of photovoltaic welding ribbons, in particular to a high-efficiency photovoltaic welding ribbon. Background technique [0002] Soldering ribbon, also known as interconnection ribbon or confluence ribbon, is an important raw material in the welding process of photovoltaic modules. Ribbon is usually used to connect cells and flow current through welding or conductive adhesive bonding. The quality of the ribbon will depend on It directly affects the current collection efficiency of photovoltaic modules and has a considerable impact on the power of photovoltaic modules. How to increase the shading reuse rate of the component surface and reduce the fragmentation rate through the isomerization of the ribbon has always been one of the research topics in the ribbon industry. [0003] Since the critical angle of total reflection of sunlight on the glass-air interface layer of the photovoltaic cell module is about 42...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05H01L31/054
CPCH01L31/0508H01L31/0512H01L31/0547Y02E10/52
Inventor 钱海鹏
Owner FUNDANT JIANGSU ADVANCED MATERIALS CO LTD
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