一、电子设备整机内插式结构型式的发展五十年代以前,电子设备一般采用整面板型机箱结构。随着电子技术的发展,对电子设备使用要求提高了。使用中常常需要在较短的时间内迅速变更或扩展电子设备的功能,以组成不同的系统。为此,如果把整机划分成几个单元,并通过不同的组合关系来 First, the whole structure of the electronic equipment plug-in The development of the fifties ago, the general use of electronic equipment, the whole chassis structure. With the development of electronic technology, the requirements for the use of electronic equipment have been raised. In use, it is often necessary to quickly change or extend the functionality of the electronic device in a shorter period of time to form a different system. To this end, if the whole machine is divided into several units, and through a combination of different relations