1简介该保护器为一种汽车电源出现瞬间过电压的保护装置，结束了现有车辆上只有过流保护，而没有过电压保护的历史。其特点在干；（1）具有可靠的整体保护功能，车辆上只需在发电机上装用1只本保护器，即可保护全车电器安全；（2）以其简单的结构和较低的造价配合调节器工作， 1 Introduction The protector is a kind of protection device for instantaneous overvoltage in the car power supply, which ends the history of overcurrent protection in existing vehicles without overvoltage protection. Its characteristics are dry; (1) has a reliable overall protection function, the vehicle only need to install a protective device on the generator, which can protect the safety of the entire vehicle electrical; (2) with its simple structure and lower cost Working with regulators,