PTC principle of electric air conditioner heater
PTC electric heater is a heater with automatic temperature control and power saving. It uses PTC heat-sensitive ceramic element as heat source, corrugated sheet made of aluminum alloy as heat sink, and is composed of heat sink after bonding and welding. .
Electric air conditioner heater PTC generally includes MCU processor, power module Mosfet/IGBT, isolated pre-driver and current detection sensor, etc. The control system transmits the temperature information to the MCU through the temperature sensor, and the MCU continuously adjusts the power of the heater according to the preset program according to the temperature difference by comparing with the target temperature input by the button, so that the temperature in the car reaches the set temperature level and is displayed on the LCD screen in real time. Displays the temperature inside the vehicle and the set temperature.
PTC heaters include PT air heaters and PTC liquid heaters. Since the PTC liquid heater can be arranged in the engine room, it can be used directly for the air-conditioning system of the existing car, and is more widely used in the heating system of the electric car.
