一类大尺寸印制板安装孔位的自动排布方法研究

Research on Automatic Arrangement Method for Mounting Holes of a Kind of Large-size PCB

螺栓紧固型印制板在雷达领域应用广泛。对于大尺寸的螺栓紧固型印制板,为了结构可靠及性能稳定,设计时需要在上面排布大量的安装孔,而印制线在结构上的规律性较弱,从而导致安装孔的布置成为一项繁琐的工作。为了减轻设计师的负担,有效提高工作效率,针对一类大尺寸印制板,根据印制线主要由水平线段和竖直线段组成的特点,设计了一套可以自动地为印制板排布安装孔位的算法。将此算法应用于3个具体的工程实例,发现在适当的参数下,算法排布的安装孔与原印制板有较高的相似度,且满足印制板设计要求,表明该算法具有一定的工程意义。

Bolt tightening PCB（printed circuit board） is widely used in radar field. For structure reliability and stable performance,it is needed to arrange a large number of mounting holes when designing large-size bolt tightening PCB. But the structure irregularity of printed wiring makes the work cumbersome. In order to reduce designer’s work and increase efficiency,an algorithm is designed to automatically arrange mounting holes on PCB by studying a kind of large-size PCB and finding that the printed wiring is mainly composed of horizontal wires and vertical wires. The algorithm is applied to three specific engineering instances. It turns out that the mounting holes arranged through the algorithm with appropriate parameters are highly similar to that of original PCB,and meet the PCB design requirements. It indicates that the algorithm has certain engineering significance.