Method for electrode wire positioning precision of concentrating solar cell
A technology for solar cells and positioning accuracy, which is applied in the field of solar power generation, can solve the problems of different thermal expansion coefficients, positioning design errors, assembly process, and difficulty in promotion, etc., and achieves the effect of reducing power generation costs and improving power generation.
Inactive Publication Date: 2015-03-04
KUNSHAN KEDE NEW ENERGY TECH
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Problems solved by technology
[0004] Concentrating solar 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 component positioning design errors and errors formed during the assembly process, optical The light gathered by the components cannot be completely concentrated on the concentrating solar 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 solar cells, which makes the promotion more difficult
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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 wires of concentrating solar cells, such as Figure 1~2 As shown, the concentrating solar cell area 2 and the positioning reference lines 3, 7, 8, 9 are installed on the circuit substrate 1, and the circuit substrate 1 is divided into the positive electrode area 5 and the negative electrode area 6 by the etching groove 4.
[0017] The layers la, lb, lc, and ld 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 or aluminum wires and the seamlessness of concentrated solar cells Soldering, while realizing that the entire circuit board can withstand temperatures up to 120 0 c.
[0018] Etching multiple corrosion grooves 4 on the copper-clad substrate, the width of the corrosion grooves ...
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The invention relates to a method for the electrode wire positioning precision of a concentrating solar cell, and belongs to the field of a solar generating technology. Multiple etching grooves are etched on a copper-clad substrate, then a nickel layer and a gold layer respectively coat the copper-clad substrate, a solder paste or heat-conduction conductive slurry or a heat-conduction conductive resin is deposited or coats a cell area by use of a screen printing screen mode or a dispensing mode, and finally, a photovoltaic cell is placed in the cell area with a coating material and is dried and solidified. According to the invention, the structure and the method are simple, a circuit board is protected from being oxidized, and the design of a circuit substrate helps to more accurately position the photovoltaic cell and ensures that aggregated sunlight can be completely received, such that the generating power is improved, and the generating 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 electrode wires of concentrating solar cells, belonging to the technical field of solar power generation. Background technique [0002] In recent years, concentrating photovoltaic power generation system has entered the public's attention as a new photovoltaic system. Because of its advantages such as high conversion efficiency, low power generation cost, environmental protection and small investment in production equipment, it is recognized as the most promising future The large and medium-sized photovoltaic power generation technology has not yet appeared a practical product, 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 high density of su...
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IPC IPC(8): H01L31/18
CPCH01L31/022433Y02E10/50Y02P70/50
Inventor 熊勇军
Owner KUNSHAN KEDE NEW ENERGY TECH