Method for shape positioning precision of electrode of light-condensed photovoltaic battery cell
A technology of concentrating photovoltaics and electrode shape, applied in the field of solar power generation, can solve the problems of different thermal expansion coefficients, positioning design errors, assembly process, changes in the position of concentrating photovoltaic cells, etc., so as to reduce the cost of power generation and increase the power of power generation.
Inactive Publication Date: 2012-08-22
成都聚合科技有限公司
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Problems solved by technology
[0004] Concentrating photovoltaic cells are fixed on the photoelectric conversion receiver circuit board through solder paste or thermally conductive paste or thermally conductive adhesive. In this way, due to parts positioning design errors and errors formed during the assembly process, optical The light gathered by the components cannot be completely concentrated on the concentrating photovoltaic cells, and after being put into use for a period of time, the thermal expansion coefficients caused by the different materials of the components are different, resulting in changes in the position of the concentrating photovoltaic cells, which increases the difficulty of promotion
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[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] A method for positioning accuracy of electrode shapes of concentrating photovoltaic cells, such as Figure 1~2 As shown, a concentrated photovoltaic solar cell area 2 and a positioning reference plane 3 are installed on a circuit substrate 1 , and the circuit substrate 1 is divided into a positive electrode area 5 and a negative electrode area 6 by an etching groove 4 .
[0017] The layers 1a, 1b, 1c, and 1d of the ceramic circuit substrate material are ingeniously combined together, which can not only protect the circuit board from oxidation, but also facilitate the firm binding of gold wires or aluminum wires and the non-toxicity of concentrated photovoltaic solar cells. Seam welding, while realizing the temperature resistance of the entire circuit board up to 120°C.
[0018] Etching multiple corrosion grooves 4 on the copper-clad substrate, the width of ...
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The invention relates to a method for a shape positioning precision of an electrode of a light-condensed photovoltaic battery cell, belonging to the technical field of solar power generation. A plurality of corrosion grooves are etched on a copper-covered base plate; a nickel layer and a gold layer are respectively coated on a copper foil; a solder paste or heat-conducting and conductive paste or heat-conducting and conductive gel is deposited or coated on the battery cell region by utilizing a screen printing screen or a dispensing way; and finally, the photovoltaic battery cell is placed on the battery cell region with a coated material and is dried and cured. The method disclosed by the invention has the advantages of simple structure and method, so that not only can a protection circuit board prevent from oxidizing, but also a circuit base plate can be designed to enable the photovoltaic battery cell to be more accurately positioned and gathered sunlight can be guaranteed to be completely received; and therefore, the power generation efficiency is improved and the power generation cost is reduced.
Description
technical field [0001] The invention relates to a photovoltaic power generation component, in particular to a method for positioning accuracy of the electrode shape of a concentrating photovoltaic battery sheet, which belongs to the technical field of solar power generation. Background technique [0002] In recent years, the concentrated photovoltaic power generation system has entered the public's sight as a new photovoltaic system. It is recognized as the most promising future because of its advantages such as high conversion efficiency, low power generation cost, environmental protection and small investment in production equipment. There is no practical application of large and medium-sized photovoltaic power generation technology, so it is imperative to accelerate the development and practical application research of concentrated photovoltaic power generation systems. [0003] The main benefit sought by concentrating photovoltaic solar power generation systems is the hi...
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Login to View More IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 王永向
Owner 成都聚合科技有限公司