Osnovno znanje o PTC keramičnih ogrevalnih elementih

Ceramic heating element is a high-energy heater with uniform heat distribution. It is a metal alloy with excellent thermal conductivity, which ensures uniform temperature of hot surface and eliminates hot and cold spots of equipment. There are two types of ceramic heating elements, namely PTC ceramic heater and MCH ceramic heater. The materials used in these two Izdelki so popolnoma drugačni, vendar so končni izdelki podobni keramiki, zato jih skupaj imenujemo "keramični grelni elementi" .

PTC keramični ogrevalni element je sestavljen iz keramičnega grelnega elementa PTC in aluminijaste cevi, ki je sestavljena iz pocinkane zunanje tlačne plošče, valovite vzmetne pločevine iz nerjavečega jekla, pocinkane notranje tlačne plošče, enoplastni aluminijski radiator, PTC ogrevalna plošča PTC, dvojna aluminijska radiatorka PPS, dvojna plastika aluminijevega aluminijevega radiatorja. Elektrodna plašča . Zaradi uporabe valovitih plavuti v obliki črke U izdelek izboljša hitrost disipacije toplote, združuje prednosti vezave in mehanike ter v celoti upošteva različne toplotne in električne pojave, kadar ima PTC ogrevalni element . ogrevalne elementacije. efficiency, safety and reliability. This PTC heater has the advantages of low thermal resistance and high heat exchange efficiency. It is an automatic constant temperature and power-saving electric heater. One of its outstanding features is its safety performance, that is, when the fan fails and stops running, the power of the PTC heater will automatically drop sharply due to insufficient Razprševanje toplote . V tem času bo površinska temperatura grelnika vzdrževana pri temperaturi Curie (na splošno približno 250 stopinj), s čimer se izognete pojavu "rdečenja" na površini električne ogrevalne cevi .

Advantages of PTC ceramic heating element: 1. PTC thermistor ceramic heating element has special functions of constant temperature, temperature adjustment and self-control. When AC or DC voltage is applied to the PTC element, its resistivity is very low, and the temperature rises rapidly below the Curie point. Once the Curie point is exceeded, the resistivity suddenly increases, causing its current to drop to a stable value, achieving the purpose of automatic temperature control and constant temperature. No additional temperature control circuit components are required, and the PTC element can be adjusted through formulas according to different temperature requirements. 2. Non-combustion, safe and reliable. PTC elements do not turn red when heated, do not have open flames (resistance wire turns red, there is open flames), and are not easy to burn. When the temperature around the PTC element exceeds the limit, its power will automatically drop to a balanced value, and will not cause a burn hazard. 3. Long life. The PTC element itself is an oxide ceramic with a long service life. It does not have Slabosti visokotemperaturne oksidacije žice niklja-kromijeve žice, niti nima krhkih pojavov, kot so steklene kremenčeve cevi .

PTC keramične grelne elemente se lahko normalno uporabljajo pod nizkimi in visokimi napetostmi . Elementi PTC z nizko napetostjo so primerni za različne grelnike z nizko napetostjo, kompenzacijo z nizko temperaturo instrumentov in različne avtomobilske grelnike .. Električni elementi, ki so primerni, so vroče električne opreme: nahrbtnike, ki so vroče električne opreme: shoe, ki so vroče opreme za elektrotec, ki so vroče pištole, ki so primerne za segrevanje elektroteh, ki so vroče električne opreme: Električni komarski repelenti, parni glavniki, parni generatorji, vlažniki, likalniki za curling, prodajni avtomati, stroji za zračne zavese, grelniki za roke, stroji za suhe čaje, lepotni saloni, termostati za otroške steklenice, grelniki itd. .