The role of warm air resistance
Automobile heater resistor is a special part of automobile heater system. Its essence is a resistor, but its shape and structure are very different from ordinary circuit resistors because of its different installation parts and functions in automobiles.
The main functions of the heater resistor are: firstly, the heating and radiating current converts electric energy into heat energy through the resistor, and then the heat is dissipated to the heater system to heat the air through the fan, which plays an auxiliary heating role for the automobile heater; Secondly, the fan speed is adjusted by changing the resistance value to change the fan power supply voltage, so the latter is also called the heater speed regulating resistor.