机械式和电磁式启动机开关,内部有使点火线圈附加电阻短路的辅助触点。虽然机械式和电磁式开关的结构和工作原理不同,但辅助触点的工作原理和作用是相同的。下面就老式电磁操纵式启动机开关(简称电磁开关)的辅助触点导致点火系统出现故障的现象、原因及排除方法作一介绍,原理图参见附图。 Mechanical and electromagnetic starter switches with internal auxiliary contacts for short-circuiting of additional ignition coil. Although the mechanical and electromagnetic switch structure and working principle is different, but the working principle and role of auxiliary contacts are the same. The following on the old solenoid operated starter switch (referred to as the electromagnetic switch) auxiliary contact ignition system failure led to the phenomenon, the reasons and the elimination of an introduction, the schematic view with the drawings.