PTC heater principle and function

PTC heater, also known as PTC heating element, is composed of aluminum tube and PTC ceramic heating element. The utility model PTC heater has low thermal resistance and high heat exchange efficiency. It is an automatic constant temperature and energy-saving electric heater. The significant feature is safety. In any application, it will not produce the "red" phenomenon on the surface of electric heating tube heaters, thereby causing safety hazards such as burns and fire.

It is mainly composed of galvanized outer pressure plate, stainless steel corrugated spring sheet, 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 combined. It fully considers the various thermal and electrical phenomena that occur in the work of PTC heating elements. It has good bonding force, heat conduction, heat dissipation, high efficiency, safety and reliability. The utility model PTC heater has low thermal resistance and high heat exchange efficiency. It is an automatic constant temperature and energy-saving electric heater. Its outstanding feature is safety. That is, when the fan stops due to a fault, the PTC heater automatically drops rapidly due to insufficient heat dissipation, and the surface temperature of the heater is maintained at a Curie temperature of about 250°C (generally around 250°C), so it will not produce the "red" phenomenon of electric heating tube heaters.

Principle of electric heating furnace:

The constant temperature PTC thermistor has a constant temperature heating characteristic. The principle is that after the PTC thermistor is powered on, the self-heating temperature rises and the resistance value enters the jump zone. The surface temperature of the constant temperature heating PTC thermistor remains constant. This temperature is only related to the Curie and external voltage of the PTC thermistor, and has nothing to do with the ambient temperature. The PTC heater is a heating device designed with a constant temperature heating PTC thermistor as a constant temperature heating device. PTC heating devices have advantages that traditional heating elements cannot match, such as constant temperature heating, no open flame, high heat conversion rate, minimal influence of power supply voltage, and long natural life, and are increasingly used in electric heating devices. PTC thermistor constant temperature heating can be made into various shapes and specifications, the most common ones are sheet, rectangle, strip, ring, honeycomb porous, etc. Combining the above PTC heating element with metal elements can form various forms of high-power PTC heaters.