PTC heater is also known as PTC thermistor ceramics, it is a kind of semiconductor functional ceramics with positive temperature coefficient. PTC resistance decreases with the increase of temperature before the transition temperature. The resistance increases significantly with the increase of temperature from the transition temperature to the thermal runaway temperature.
PTC heater has many advantages, such as constant temperature heating, long natural life, energy saving, no open fire, good safety performance, easy regulation of heat and less affected by power supply voltage. Domain.
The PTC heater can be made into various shapes and specifications according to the requirements.
Scope of application:
Heating fan, air conditioning heating, dryer, mosquito killer, motorcycle carburetor, automotive damper door, automotive cold start preheating, electric humidifier, electrical instrument moisture-proof heating plate (plate), massager, thermotherapy device, melt gun, curling hair, hair straightener heating, coffee heater, milk heater, boiling water heater, water heater, steam Beauty, etc.
Production process of PTC heater：
PTC heater refers to the automatic temperature control PTC ceramic heating body, is a special ceramic material. The principle of constant temperature heating of PTC heater is: when PTC heater is energized, because the resistance at room temperature is small, the initial current is large, which can make PTC heater heating up quickly, and lead to the resistance value rapidly increasing into the transition zone. At this time, the current through PTC heater is very small, so that the surface temperature of PTC heater remains constant. The temperature is only related to Curie temperature and applied voltage of PTC heater, but has nothing to do with ambient temperature. The production process of PTC heater is as follows: