Solar battery inspecting apparatus and method for judging solar battery defect

A technology of solar cells and inspection devices, which is applied in the direction of optical testing of defects/defects, circuits, electrical components, etc., can solve problems such as reduced power generation efficiency, and achieve the effect of improving quality and durability

Inactive Publication Date: 2011-01-26
NISSHINBO IND INC
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  • Summary
  • Abstract
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Problems solved by technology

Therefore, there is an aspect that deterioration due to use cannot be avoided, and even if it is a good product at the time of production, after use, the power generation efficiency will decrease as a result.
The existing technology does not take into account such a situation

Method used

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  • Solar battery inspecting apparatus and method for judging solar battery defect
  • Solar battery inspecting apparatus and method for judging solar battery defect
  • Solar battery inspecting apparatus and method for judging solar battery defect

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Embodiment Construction

[0059] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 It is a block diagram for explaining the schematic configuration of the solar cell inspection apparatus according to the embodiment of the present invention. figure 2 It is a figure which shows the structure of the camera of the apparatus of this embodiment, and a camera drive apparatus, (a) is a plan view, (b) is a front view, (c) is a right side view. image 3 It is a flowchart for explaining the solar cell inspection method of this embodiment, Figure 4 It is a flowchart for describing in detail the process of photographic image processing and the quality determination of this embodiment. Figure 5 It is a figure which shows the display example of the inspection result of this embodiment, (a) is a photographed (original) image, (b) is a photographed image after an emphasis process. Image 6 It is a plan view drawn to clarify the solar cell unit, string, and matrix...

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Abstract

Provided is a solar battery inspecting apparatus which inspects and judges conformity of a solar battery based on light emitting state by making the solar battery emit EL light and also judges conformity of a solar battery having a possibility to be a failure in the future. A defect judging method is also provided. A solar battery cell is supplied with a constant current to make the cell emit EL light (S7), light emitted from the cell is photographed by each cell (S10), a photographed cell image is emphatically processed to analyze the shape of a dark section (S50), and conformity of the cellis judged. An emphasized image wherein a defective section judged as having a trouble is emphasized is visibly displayed (S16).

Description

Technical field [0001] The present invention relates to a solar cell inspection device and a solar cell defect determination method for inspecting solar battery cells (including solar battery panels in which the solar battery cells are connected in a row and a plurality of strings are arranged in parallel). Background technique [0002] As a method of utilizing solar energy, silicon-type solar cells are known. In the manufacture of solar cells, it is very important to evaluate whether the solar cells have the target power generation capacity. As a general performance evaluation method, the output characteristics are measured. [0003] The output characteristics are measured by measuring the current-voltage characteristics of the solar cell as the photoelectric conversion characteristics under light irradiation. Sunlight is preferable as the light source, but the intensity of the sun light changes due to the climate, so a solar simulator is generally used. In the solar simulator,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/04
CPCG01N21/88G01N21/66
Inventor 笠原昌人涩谷俊绪
Owner NISSHINBO IND INC
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