摘要
太阳能电池阵需要通过平行间隙电阻焊将大量太阳能电池单元与互连片串并联连接在一起以提供足够的能量。太阳能电池互连片平行间隙电阻焊过程影响因素较多,接头质量控制困难,并且缺乏有效的接头质量评价指标。通过有限元仿真结合红外热像测温试验,从焊接过程中的温度场分布角度进行分析,为太阳能电池互连片平行间隙电阻焊工艺参数优化以及质量检测提供参考。通过分析结果得到工艺参数的优化策略为焊接电压0.8 V,焊接时间50 ms,电极间隙0.2 mm,电极-互连片接触区域临界最优温度为900.2℃。
A large number of solar cells and interconnectors need to be connected in series and parallel by parallel gap resistance welding to collect enough energy. There are many factors affecting the parallel gap resistance welding process of solar cell and interconnector, the quality control of the joint is difficult and an effective evaluation method of the joint quality is lacked. In this paper, finite element simulation combined with infrared thermal image temperature measurement experiment is used to analyze the temperature field distribution in the welding process, which provides reference for optimization of process parameters and quality evaluation of parallel gap resistance welding of solar cell and interconnector. The results show that the optimization strategy of process parameters is welding voltage 0.8 V, welding time 50 ms and electrode gap 0.2 mm. The optimal critical temperature in the contact area of electrode-interconnector is 900.2 ℃.
作者
陈伟彦
张延松
CHEN Weiyan;ZHANG Yansong(Shanghai Key Laboratory of Digital Manufacture for Thin-walled Structures,ShanghaiJiaotong University,Shanghai 200240,China)
出处
《机械设计与研究》
CSCD
北大核心
2019年第5期75-79,共5页
Machine Design And Research
基金
国家自然科学基金资助项目(51675338)
关键词
太阳能电池
平行间隙电阻焊
有限元仿真
温度场分析
临界温度
solar cell
parallel gap resistance welding
finite element simulation
temperature field analysis
critical temperature
