What happens when a PTC heater is too hot
PTC heater heats up quickly, can also automatically control the temperature in case of fan failure, long service life, wide voltage use, can be between 12V-380V credential demand design and convenient design, can be designed from small power to high power arbitrarily, the shape can also be designed according to the requirements · no incineration, safe and reliable, PTC heating without redness, no open flame.
In small and medium-power heating places, PTC heating has the advantages of constant temperature heating, no open flame, high heat conversion rate, minimal influence by power supply voltage, long natural life and other traditional heating components, and the use in electric heating appliances is increasingly favored by R&D engineers.
PTC heater belongs to the model of direct heat step type positive temperature coefficient thermistor, when the temperature increases above the Curie temperature, its resistance value increases step by step, can reach 4~10 orders of magnitude. The change in temperature can be obtained by the current flowing through the thermistor, or by the superposition of the external input thermal energy. Based on the above characteristics, PTC can be used in circuits for overcurrent protection, overtemperature protection, temperature measurement, temperature compensation, delayed start-up, demagnetization, etc., so it is widely used in circuits.
PTC electric heaters are in the sense of positive temperature coefficient. The significance of negative temperature coefficient. PTC heater its mutant PTC thermistor is subdivided into two categories, the first type of high-temperature fan is ceramic PTC thermistor, PTC effect can be found after incorporation of semi-conductivizing elements. The addition of carbon black to polyethylene polymer material causes PTC effect.
