In small and medium power heating occasions, PTC heater has incomparable advantages over traditional heating elements, such as constant temperature heating, no open flame, high heat conversion rate, little influence by power supply voltage, long natural life and so on. Their application in electric heating appliances is more and more favored by R&D engineers. PTC thermistor with constant temperature heating can be made into various external structures and different specifications, such as disc, rectangle, strip, ring and honeycomb porous.
PTC heater is an efficient, environmentally friendly and safe heater, and its working principle is based on the heating characteristics of PTC ceramics. PTC ceramic is a kind of semiconductor material with positive temperature coefficient (PTC effect), and its resistivity increases sharply with the increase of temperature. When the temperature rises to a certain value, the resistivity will increase sharply, forming a "mutation", which will reduce the current sharply and achieve the effect of automatic constant temperature.
Application field of PTC heater
1, air heating: air heater, PTC heater with external pressure aluminum shell for air conditioning.
2. Automotive field: auxiliary heating in the compartment, diesel oil circuit preheating, diesel filter heating, windshield washer nozzle heating and crankcase system heating.
3. Civil use: air heaters, such as bathroom heating, curling irons, electric mosquito coils, perfume evaporators, electronic door locks of washing machines, oil stove fuel preheating, thermostats, etc.
4. Other fields: glue gun, plastic film sealing, etc. In addition, PTC heaters are also widely used as heat sources for household and industrial air conditioners, hot air curtain machines, dryers, air curtain machines, automobile air conditioners, heaters, dryers, dehumidifiers, dryers, integrated ceilings, hand dryers, heaters in drying rooms, heating moisture-proof control cabinets (boxes), industrial drying equipment, air heating, household appliances, small household appliances and other heating equipment.