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Method for detecting and determining returned materials in photovoltaic module junction box

A photovoltaic module and judgment method technology, applied in material inspection products, measuring devices, analytical materials, etc., can solve the problems of photovoltaic module manufacturers lack of detection methods, detection tools and judgment basis, etc., to fill technical gaps, fill detection and Judgment, method simple and reliable effect

Active Publication Date: 2016-10-12
SPIC XIAN SOLAR POWER CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is impossible to judge whether there are recycled materials in the junction box through the appearance inspection, and the photovoltaic module manufacturer also lacks inspection methods, inspection tools and judgment basis, and has not included the inspection of recycled materials in the inspection items of the junction box, so this kind of quality cannot be avoided. Hidden danger

Method used

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  • Method for detecting and determining returned materials in photovoltaic module junction box
  • Method for detecting and determining returned materials in photovoltaic module junction box

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Embodiment

[0055] An embodiment is given below for further description

[0056] A method for detecting and judging returned material in a junction box of a photovoltaic module, comprising the following steps:

[0057] (1) Select a number of unused or used photovoltaic module junction box sample numbers, and carry out crushing treatment, and select the material blocks required for testing;

[0058] (2) Clean and cut the material block to make a pattern particle close to 4mm, and the pattern particle number is consistent with the junction box sample;

[0059] (3) Select the set temperature of the melt index instrument according to the sample material, set it at 250°C, and wait for the temperature to be basically constant at "set value ± 1°C";

[0060] (4) Take out the piston rod of the material barrel for cleaning, and then insert the piston rod after cleaning, and wait for the temperature to be constant within the "setting value ± 1°C";

[0061] (5) Fill the sample particles into the ba...

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Abstract

The invention discloses a method for detecting and determining returned materials in a photovoltaic module junction box. The method comprises the following steps: measuring flux flow rate MFRjunction box of a material of a to-be-detected finished photovoltaic module junction box and flux flow rate MFRraw material particle of raw material particles of a standard photovoltaic module junction box; making comparison on the measured MFRjunction box and MFRraw material particle, calculating the degradation rate of the material of the to-be-detected finished photovoltaic module junction box, judging whether the material of the to-be-detected finished photovoltaic module junction box is added with the returned materials, and if the flux flow rate MFRjunction box of the material of the to-be-detected finished photovoltaic module junction box is less than or equal to 10g / min and the degradation rate of the material is less than 60%, determining that the finished photovoltaic module junction box is not added with the returned materials; and otherwise, determining that the finished photovoltaic module junction box is added with the returned materials. The method is simple and reliable, and the technical blank for detecting and determining the returned materials in the photovoltaic module junction box in the prior art is filled up.

Description

technical field [0001] The invention relates to the technical field of photovoltaic manufacturing and detection, in particular to a method for detecting and judging recycled materials in junction boxes of photovoltaic modules. Background technique [0002] Photovoltaic modules have been widely used in the construction of ground photovoltaic power stations, distributed photovoltaic power stations, water surface photovoltaic power stations, etc. Most of the areas where they are used have extreme climate and meteorological conditions, and they need to face strong ultraviolet radiation, high temperature and high humidity, high altitude, strong wind and hail, and heavy snow , extreme low temperature and other extremely harsh conditions, so the performance requirements of photovoltaic modules are extremely demanding. As the power generation output part of photovoltaic modules, the junction box not only heats up due to the heating of its own bypass diodes during the power generatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/44
CPCG01N33/442
Inventor 左燕魏亚楠魏云王锐王琪张星刘建达
Owner SPIC XIAN SOLAR POWER CO LTD
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