载人航天器用电连接器耐结露性能研究  

The Performance Research of Condensation- free Connectors for Manned Spacecraft

作　　者：苏妤[1] 张磊[1] 杨敏慧[2] 李楠[1] 

机构地区：[1]中国空间技术研究院,北京100094 [2]郑州航天电子技术有限公司,河南郑州450001

出　　处：《机电元件》2015年第2期3-7,共5页Electromechanical Components

摘　　要：随着载人空间站长寿命需求的提出,对电连接器结露性能提出更高要求,本文选取国产两个系列矩形电连接器典型规格,按照宇航结露试验要求进行2000h结露试验研究,并对电连接器绝缘电阻变化情况进行统计分析;为预计连接器长寿命在轨可靠性,在已有2000h结露试验绝缘电阻测试结果的基础上,选取幂函数为最佳退化趋势数学描述模型,进行绝缘电阻退化参数拟合,并预计10年后绝缘电阻值。根据预计结果,对连接器研制厂家和型号使用单位提出改进和使用建议。With the requirements of longer life for manned spacecraft,the connector of condensation- free performance has been advanced. The paper studies the condensation- free performance of connectors by 2000 h condensation test that selects two typical rectangular connectors,and analyzes the change of insulation resistance of connectors. Based on the analysis,the paper selects power function as optimum degraded current mathematical model,and estimates their condensation- free performance after 10 years by fitting the insulation resistance degeneration. Based on the forecast results,some suggestions have been put to connector manufacturing and users of spacecraft

关 键 词：载人航天器 电连接器 耐结露 寿命预计 

分 类 号：TN784[电子电信—电路与系统]