Introduction Of PTC Heating Element
PTC element is also called PTC thermistor, it is a kind of semiconductor functional ceramic with positive temperature coefficient. Before the PTC transition temperature, the resistance decreases with the increase in temperature. Between the transition temperature and the thermal runaway temperature, the resistance increases significantly with the increase in temperature. PTC components have constant temperature heating, long natural life, energy saving, and no open flame. , Good safety performance, easy adjustment of heat generation and little influence of power supply voltage, etc. which are unmatched by a series of traditional electric heating elements. Now PTC components have been widely used in many fields such as household appliances, power facilities, electronic equipment, and the automotive industry.
PTC ceramic heating elements can be made into various shapes and different specifications according to needs, and the common ones are round, rectangular, and long. According to customer requirements, the temperature can be selected between 40℃-310℃, the operating voltage can be selected between 3V-700V, DC or AC, and the temperature tolerance is generally ±7℃. Sometimes in order to achieve a faster heating rate, more uniform heating, or higher heating power, it is necessary to combine multiple PTC ceramic units into a larger area component.
Examples of uses: heaters, air-conditioning heating, clothes dryers, mosquito killers, motorcycle carburetors, automobile choke doors, automobile cold-start preheating, electric humidifiers, moisture-proof heating for electrical appliances, electric heating plates (pans), massagers , Hyperthermia, glue gun, hair curler heating, hair straightener heating, hot coffee machine, milk heater, water heater, water heater, steam beauty, etc. When the product terminal temperature is below 310℃, PTC heating can maintain a constant temperature without temperature control, compact structure and long life, which has great advantages.
