论文部分内容阅读
汽车分电器上的电容器在点火过程中具有重要作用。当分电器触点打开、磁场消失的瞬间,点火线圈初级绕组中产生200～300V的自感电动势,若没有这个电容器,该自感电动势就会在触点间产生火花,烧蚀触点。同时,自感电流的方向与初级绕组电流方向相同,使初级绕组中的电流不能迅速断开,磁场的消失也相应减慢,因而使次级感应电动势降低。有了这
The capacitor on the car distributor plays an important role in the ignition process. When the distributor contacts open, the disappearance of the magnetic moment, the ignition coil primary winding 200 ~ 300V self-induced electromotive force, without this capacitor, the self-induced electromotive force will spark between the contacts, ablation contacts. At the same time, the direction of the self-inductance current is the same as the direction of the primary winding current, so that the current in the primary winding can not be quickly disconnected, and the disappearance of the magnetic field is correspondingly slowed down, so that the secondary induced electromotive force is reduced. With this