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随着复杂的电路芯片在印制板和模块中的集成度越来越高,航天航空电子系统在设备性能方面的作用也越来越大。而新型数字电子系统越来越要求传输信号的导线和连接器的体积可以大幅度减小。这也导致其密度的大幅增加,以及所占用体积和重量的进一步减小。于是,一种体积和重量比传统的微型连接器小10倍的新一代纳小型航天连接器便应运而生了,并由此推动着航天航空工业的发展。本文将介绍这种新一代0.025英寸间距的纳米连接器,简单介绍其尺寸、重量和互连方法,包括插针、插孔设计以及热震、振动方面的技术要求。试验数据表明,这种连接器已经通过了高达22000g的冲击试验,并满足航天释气和热偏移要求。本文通过X射线图、横截面图和产品图片方式介绍了连接器结构,并介绍纳米连接器的一些应用领域如太空机器人、运动控制系统、传感器和监测器以及航天级导线和柔性互连电路。用于带有超微型同轴和EMI保护功能的甚高速电子产品的更先进的连接器也将在文中有所涉猎。
As complex circuit chips become more and more integrated in boards and modules, aerospace electronic systems play an increasingly greater role in device performance. The new digital electronic systems increasingly demand that the volume of wires and connectors that transmit signals be significantly reduced. This also leads to a substantial increase in its density, as well as a further reduction in the volume and weight involved. As a result, a new generation of small-size space connectors, 10 times smaller and bulky than conventional miniature connectors, came into being and is therefore driving the aerospace industry. This article will introduce a new generation of 0.025-inch pitch nanometer connectors, a brief description of its size, weight and interconnection methods, including pin, jack design and thermal shock, vibration technical requirements. Test data show that this connector has passed the impact test of up to 22000g, and meet the requirements of space gas outgassing and thermal offset. In this paper, the connector structure is introduced by means of X-ray diagrams, cross-sectional views and product images. Some applications of nano-connectors such as space robots, motion control systems, sensors and monitors, as well as space-grade conductors and flexible interconnects are introduced. More advanced connectors for very high speed electronics with nano-coaxial and EMI protection are also covered in this article.