Embossed photovoltaic welding band and processing method thereof

A photovoltaic ribbon and embossing technology, applied in the field of solar energy, can solve the problems of special-shaped metal wires falling off, difficult to arrange parallel and twisted special-shaped metal wires, etc.
CN104992999AActive Publication Date: 2015-10-21WENLING XUSHENG OPTOELECTRONICS TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
WENLING XUSHENG OPTOELECTRONICS TECH
Publication Date
2015-10-21

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Abstract

The invention discloses an embossed photovoltaic welding band and a processing method thereof. The embossed photovoltaic welding band includes a conducting base band having a lower adhering face and an upper reflecting face. The lower reflecting face is a flat face. Reflecting grooves are distributed in the upper reflecting face. Coupling bands are formed between the adjacent reflecting grooves. The embossed photovoltaic welding band is characterized in that the reflecting grooves extend in the length direction, being parallel to each other. The width of each coupling band is 0.2 to 0.4 times of the width of the top part of each reflecting groove. The thickness of the conducting base band is 0.5 to 1.0 mm. The depth of each reflecting groove is 0.1 to 0.2 mm. The invention also discloses a method for processing the above embossed photovoltaic welding band. By adopting the scheme, good incident light utilization rate can be achieved. Besides, good welding strength of the photovoltaic welding band and a back electrode of a crystalline silicon solar cell can be ensured.
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Description

technical field

[0001] The invention relates to an embossed photovoltaic welding ribbon and a processing method thereof, belonging to the technical field of solar energy. Background technique

[0002] Photovoltaic ribbon is the key auxiliary material for connecting solar cells into strings. Solar cells are connected by ribbons to form a complete electrical path. Light energy is converted into electrical energy through solar cells, and the generated current forms a transmission circuit through ribbons, which provides Access basis. The base material of ordinary solder ribbon is copper, and the surface of the solder ribbon base material is coated with a tin layer. The entire ribbon surface is relatively flat. Although there are some special-shaped ribbons on the market at present, there are various regular grooves on the surface to achieve secondary reflection to reach the surface of the cell and be reused, thereby improving the utilization rate of incident light.

[0003] Th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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