Principle and function of PTC heater

PTC heater, also known as PTC heating element, is composed of aluminum tube and PTC ceramic heating element. The PTC heater of this utility model has small thermal resistance and high heat exchange efficiency, and is an automatic constant temperature and energy-saving electric heater. The prominent feature is safety, which will not cause surface "redness" phenomenon such as electric heating tube heaters in any application situation, resulting in safety hazards such as burns and fires.
Mainly composed of galvanized outer pressure plate, stainless steel corrugated spring plate, galvanized inner pressure plate, single-layer aluminum heat sink, double-layer aluminum heat sink, nickel plated copper electrode terminal, and PPS high-temperature plastic electrode sheath. Due to the use of U-shaped heat sink, its heat dissipation rate is improved, and the advantages of both adhesive and mechanical forms are integrated, taking full account of all kinds of thermal and List of electrical phenomena that occur in the work of ptc heating elements, its good adhesion, heat conduction, heat dissipation, high efficiency, safety and reliability. The PTC heater of this utility model has small thermal resistance and high heat exchange efficiency, and is an automatic constant temperature and energy-saving electric heater. Its outstanding feature is safety, that is, when the fan malfunctions and stops running, the PTC heater automatically drops rapidly due to insufficient heat dissipation. The surface temperature of the heater is maintained at around 250 ℃ (usually around 250 ℃), so there will be no "redness" phenomenon like that of electric heating tube heaters.
Principle of electric heating furnace:
The constant temperature PTC thermistor has the characteristic of constant temperature heating. Its principle is that after the PTC thermistor is electrified, the self-heating temperature increases to make the resistance enter the jump zone, and the surface temperature of the PTC thermistor remains constant during constant temperature heating. This temperature is only related to the Curie and external voltage of the PTC thermistor, and is basically independent of the environmental temperature. PTC heater is a heating device designed with a constant temperature heating PTC thermistor as the constant temperature heating device. PTC heating appliances have advantages that traditional heating elements cannot match, such as constant temperature heating, no open flame, high heat transfer rate, minimal power voltage impact, and long natural life. They are increasingly being used in electric heating appliances. PTC thermistors can be made into various external structures and specifications by constant temperature heating, including sheet shape, rectangular shape, long strip shape, circular ring, honeycomb porous structure, etc. By combining the above PTC heating elements with metal components, various forms of high-power PTC heaters can be formed.