PTC heaters are used in new energy vehicles and can provide efficient and safe heating systems. PTC provides current and voltage from the high-voltage battery of new energy vehicles, and controls the heating element to be turned on and off through IGBT or other power devices. The MCU realizes the control of the PTC system by collecting voltage and current information, and uses transceivers to communicate with other modules.
PTC coolant heater, also called PTC heating element, is composed of PTC ceramic heating element and aluminum tube. This type of PTC heater has the advantages of small thermal resistance and high heat exchange efficiency. It is an automatic constant temperature and power-saving electric heater. The constant-temperature heating PTC thermistor has constant-temperature heating characteristics. The principle is that after the PTC thermistor is powered on, it self-heats and the resistance value enters the transition zone. The surface temperature of the constant-temperature heating PTC thermistor will maintain a constant value. This temperature is only related to the PTC The Curie temperature of the thermistor is related to the applied voltage and has basically nothing to do with the ambient temperature.
There are many types of PTC heaters, and they are classified in different ways. According to different structures, PTC heaters are divided into automatic constant temperature PTC heaters, practical PTC heaters, PTC air heaters, etc.; according to different conduction methods, PTC heaters It can be divided into PTC water heaters, PTC air heaters, infrared radiation heaters, etc. Among them, air PTC heaters are widely used in the field of electric vehicles.
Post time: Apr-01-2024
