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Method of using concentration solar cell electrode positioning precision

A technology of solar cells and concentrating solar energy, which is applied in the field of solar power generation, can solve problems such as different thermal expansion coefficients, positioning design errors, assembly processes, and position changes, and achieve the effects of reducing power generation costs and increasing power generation

Inactive Publication Date: 2015-01-28
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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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] A method for utilizing the positioning accuracy of electrodes of concentrating solar cells, such as Figure 1~2 As shown, the concentrating solar cell area 2 and the positioning reference plane 3 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 wires or aluminum wires and the non-toxicity of concentrated solar cells At the same time, the entire circuit board can withstand a temperature of up to 120°C, and multiple corrosion grooves 4 are etched on the copper-clad substrate. The width of the corrosion groove 4 is 0....

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Abstract

The invention relates to a method of using concentration solar cell electrode positioning precision, and belongs to the technical field of solar power generation. A plurality of corrosion grooves are etched on a copper-coated substrate; a copper foil is respectively coated with a nickel layer and a gold layer; a screen printing plate mode or a dispensing mode is adopted to deposit or coat solder paste or thermal conductive or electrical conductive mortar or thermal conductive or electrical conductive paste in the cell region; and finally a photovoltaic cell is placed in the cell region coated with material and dried and cured. The structure and the method of the invention are simple, the circuit board can be protected against being oxidized, and the design of the circuit substrate enables the photovoltaic cell to be more accurately positioned, concentrated sunlight can be ensured to be fully received, and thus the generation power 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 utilizing the positioning accuracy of electrodes of concentrating solar cells, and belongs to the technical field of solar power generation. Background technique [0002] In recent years, the concentrated solar power generation system has entered the public's sight 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 solar power generation systems. [0003] The main benefit sought by concentrating solar power systems is the high density of sunlight on the concentrating ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18
CPCH01L31/18Y02P70/50
Inventor 熊勇军
Owner KUNSHAN KEDE NEW ENERGY TECH
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