Photovoltaic tabbing ribbon

Abstract

The invention provides a photovoltaic tabbing ribbon which is low in resistivity and great in light reflecting effect. The photovoltaic tabbing ribbon comprises a baseband which is provided with a front surface used for receiving light and a back surface used for connecting a solar cell. The photovoltaic tabbing ribbon also comprises a silver coating layer which covers the front surface of the baseband and a tin coating layer which covers the back surface of the baseband. The front surface of the silver coating layer outwardly protrudes to form a curved surface in a way of opposing the baseband. The connecting line of the center of the circle of all the curved lines forming the curved surface extends along the length direction of the tabbing ribbon.

Description

technical field

[0001] The invention relates to the field of solar photovoltaic, in particular to a photovoltaic interconnection bar. Background technique

[0002] Recently, with the implementation of the photovoltaic leader plan, the photovoltaic industry and research institutions have paid more attention to the power improvement of photovoltaic modules. Among them, the improvement of the cell connecting material, the interconnection strip, can more quickly increase the overall output power of the module. As the industry matures, high-efficiency components are bound to become the mainstream in the industry. The module is to connect the single cells with interconnecting strips and then package them into a power generation unit. The traditional interconnection strip mainly adopts the structure of copper substrate coated with tin alloy layer. The coating material is usually Sn60% / Pb40%, Sn63% / Pb37%, and the coating thickness is 0.02-0.04mm. The resistivity is as high as (3.0...

Examples

Embodiment Construction

[0015] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0016] Refer to the attached figure 1 As shown, a photovoltaic interconnection bar is located between the glass panel 1 and the solar cell sheet 5 after being packaged. The photovoltaic interconnection strip includes a base tape 3 having a front side for receiving light and a back side for connecting solar cells. The photovoltaic interconnection bar further includes a silver plating layer 2 covering the front side of the base tape 3 and a tin plating layer 4 covering the back side of the base belt 3 . The front surface of the silver plating layer 2 is facing away from the base tape 3 and protrudes outwardly in an arc-shaped curved surface. A line connecting the centers of the respective arcs constituting the arc-shaped c...

technical field

[0001] The invention relates to the field of solar photovoltaic, in particular to a photovoltaic interconnection bar. Background technique

[0002] Recently, with the implementation of the photovoltaic leader plan, the photovoltaic industry and research institutions have paid more attention to the power improvement of photovoltaic modules. Among them, the improvement of the cell connecting material, the interconnection strip, can more quickly increase the overall output power of the module. As the industry matures, high-efficiency components are bound to become the mainstream in the industry. The module is to connect the single cells with interconnecting strips and then package them into a power generation unit. The traditional interconnection strip mainly adopts the structure of copper substrate coated with tin alloy layer. The coating material is usually Sn60% / Pb40%, Sn63% / Pb37%, and the coating thickness is 0.02-0.04mm. The resistivity is as high as (3.0...

Examples

Embodiment Construction

[0015] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0016] Refer to the attached figure 1 As shown, a photovoltaic interconnection bar is located between the glass panel 1 and the solar cell sheet 5 after being packaged. The photovoltaic interconnection strip includes a base tape 3 having a front side for receiving light and a back side for connecting solar cells. The photovoltaic interconnection bar further includes a silver plating layer 2 covering the front side of the base tape 3 and a tin plating layer 4 covering the back side of the base belt 3 . The front surface of the silver plating layer 2 is facing away from the base tape 3 and protrudes outwardly in an arc-shaped curved surface. A line connecting the centers of the respective arcs constituting the arc-shaped c...

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