Code of automobile circuit fuse box

The car circuit fuse box is code-named MIRDEFG, which is the demister of the exterior rearview mirror. TSIG parking neutral and reversing light switch, turn signal flasher. EBTCMTPS is an electronic brake and gravity control module, and it is also an interface module of throttle position sensor. ERAPWPR is the wiper relay of the component central fixed accessory power supply. A radio is an audio receiver.

Working principle of circuit fuse box

Due to the thermal temperature of current conversion, when the normal working current of the load makes the current overload, the fuse will gradually balance the heat generated by the current with the heat emitted by radiation, convection and conduction of the surrounding environment. If the heat dissipation rate can't keep up with the heat generation rate, the heat will gradually accumulate on the melt to raise the temperature of the melt. Once the temperature reaches or exceeds the melting point of the melt material, it will liquefy or vaporize, thus disconnecting the current and protecting the circuit and people.