浅析光伏组件接线盒灌封胶气泡成因及解决思路  

ANALYSIS OF CAUSES AND SOLUTIONS OF POTTING GLUES BUBBLES IN PV MODULE JUNCTION BOXES

作　　者：曹敬乐 Cao Jingle(Chint New Energy Technology Co.,Ltd.,Haining 314415,China)

机构地区：[1]正泰新能科技股份有限公司,海宁314415

出　　处：《太阳能》2024年第5期69-75,共7页Solar Energy

摘　　要：通过对存在固化气泡的不良光伏组件接线盒进行整体的剖切研究,梳理出3种类型的气泡及其产生机理。通过调整灌封胶的物理特性,设计对照实验,找到彻底解决灌封胶气泡的方法。实验结果表明:通过延长搅拌时间、提高搅拌速度、填料加热处理3种物理方式,可有效降低灌封胶粘度,提高流平性能;可有效降低小体积接线盒灌胶后产生气泡的概率。在提升灌封胶流平性方面,提高搅拌速度可提升5.4%,延长搅拌时间可提高10.1%,预加热叠加提高搅拌速度和延长搅拌时间可提高15.5%。This paper conducts a comprehensive cross-sectional study on poor PV module junction boxes with solidified bubbles,and identifies three types of bubbles and their generation mechanisms.By adjusting the physical properties of the potting compound and designing control experiments,a method to completely solve the potting bubbles was found.The experimental results show that the viscosity of the potting adhesive can be effectively reduced,the leveling performance can be improved,and the frequency of bubbles after filling the miniaturized junction box can be effectively reduced by prolonging the stirring time,increasing the stirring speed and heating treatment of the filler.In terms of improving the leveling of potting compound,increasing the mixing speed can increase the leveling by 5.4%,extending the mixing time can increase by 10.1%,and preheating superposition can increase the mixing speed and extending the mixing time by 15.5%.

关 键 词：光伏组件 小型化接线盒 灌封胶 硅胶气泡 流动性 

分 类 号：TB302.1[一般工业技术—材料科学与工程] TM615[电气工程—电力系统及自动化]