2. In pure electric vehicles sold in the market, the warm air heat sources used are basically PTC elements in the form of electric heating (hereinafter referred to as PTC). Simple understanding is like rapid heating. After electrifying, the internal heating wire heats up, and then the water boils. On the other hand, PTC is more high-tech. It uses a thermistor as a heat source. When the resistor is energized, it generates heat, and the air passes through the element through the blower to achieve the effect of heating the air. It is installed in the position of Xiao Nuan water tank of traditional fuel vehicle.
This little guy is not big, but he is very powerful. This is the fundamental reason why the electric car consumes so much power after turning on the warm air. The general power of PTC components used by manufacturers is 2-3kW, and it will consume 2-3kWh of electric energy if they work continuously for one hour. So imagine if your electric car is fully charged at 20kWh and its cruising range can reach 200km. However, if it is cold in winter, the PTC will consume at least 10% more power during the continuous driving and heating for one hour.