PTC means "Positive Temperature Coefficient" in automotive heater. The engine of a conventional fuel car generates a lot of heat when it is started. Automotive engineers use the engine heat to heat the car, air conditioning, defrosting, defogging, seat heating and so on. However, in a new energy car, the replacement for the engine is the electric motor, which produces less heat in its work than the engine. The replacement of gasoline is the battery, the battery pack in the battery cell is also extremely sensitive to temperature, but also needs a certain temperature environment to ensure its safe and effective storage and conversion. The heating, from the energy conversion, the engine for gasoline through combustion into heat, heat into mechanical energy, the motor is the direct conversion of electrical energy into mechanical energy, from the conversion rate, the engine will waste more energy, that part of the energy certainly can not be wasted, in cold weather, you can heat through the air conditioning system, while the motor generated heat is not enough to warm the whole car and battery pack.
But the human body is limited by the temperature to which it can adapt, how to do?
Add a "warm air conditioner" PTC heater to the car.
Similar to most electric heating appliances, such as rice cookers, induction cookers, air conditioners, etc., PTC heaters are also used to generate a lot of heat by energizing thermal materials such as resistance wires/ceramics to provide the heat required by the vehicle. If one is not enough, then another one is added, or the power is increased again. The heat generated Q=I²R*T, the current is stable, the greater the resistance value, the greater the power, the greater the heat generated per unit time; the current is stable, the resistance value is stable, the longer the time, the more energy is consumed.
Post time: Mar-09-2023
