Vehicle-mounted electrical self-adaptive anti-impact protection circuit

• Main Authors: SUN JIANXI, XIAO BOTAO, CEN NA, WANG YU, CHEN JIAXING, HUO XINGWANG
• Format: Patent
• Language: Chinese; English
• Published: 09.08.2019
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model provides a vehicle-mounted electrical self-adaptive anti-impact protection circuit, and solves the problems that conventional vehicle-mounted electrical equipment is easy to damage due to impact voltage during vehicle ignition, and the service life of an inverter and the electrical equipment is shortened due to the fact that the conventional vehicle-mounted electrical equipment is still in a power-on state when a vehicle is shut down. The circuit comprises a fuse FU, a transient voltage suppressor TVS, an adjustable resistor R, an adjustable precision voltage stabilizing source and a relay KA which are arranged between a storage battery and an inverter. The relay KA comprises a coil and a normally open switch; through triple protection of the fuse FU, the transient diodeTVS and the adjustable precision voltage stabilization source, targeted absorption protection is performed on impulse voltage and overcurrent in a circuit, and it is ensured that a vehicle load is notdamaged. 本实用新型提供了一种车载电气自适