PTC heater is composed of PTC ceramic heating element and aluminum tube. This type of PTC heater has the advantages of small thermal resistance, high heat transfer efficiency, is a kind of automatic constant temperature, power-saving electric heater. The outstanding feature is the safety performance, any application will not produce such as electric tube heater surface "red" phenomenon, thus causing burns, fire and other safety hazards. It consists of galvanized outer pressure plate, stainless steel corrugated spring plate, galvanized inner pressure plate, single-layer aluminum heat sink, ptc heat sink, double-layer aluminum heat sink, nickel-plated copper electrode terminal and pps high temperature plastic electrode sheath. The product adopts u-shaped corrugated heat sink, which improves its heat dissipation rate, and integrates the advantages of gluing and mechanical type, and fully takes into account the various thermal and electrical phenomena of ptc heat sink in working, with strong bonding force, excellent thermal conductivity and heat dissipation performance, high efficiency, safety and reliability. This type of PTC heater has the advantages of small thermal resistance and high heat transfer efficiency, and is an automatic thermostat, power-saving electric heater. One of its outstanding features is the safety performance, that is, in case of fan failure stop, PTC heater because of insufficient heat dissipation, its power will automatically drop sharply, at this time the surface temperature of the heater to maintain the Curie temperature or so (generally in the 250 ℃ up and down), so as not to produce such as electric heaters of the surface "red" phenomenon .
Constant temperature heating PTC thermistor with constant temperature heating characteristics, the principle is that the PTC thermistor after heating up the resistance value into the jump zone, constant temperature heating PTC thermistor surface temperature will remain constant value, the temperature is only related to the PTC thermistor Curie temperature and applied voltage, and the ambient temperature is basically irrelevant. Characteristic design of heating devices. In small and medium power heating occasions, PTC heaters have constant temperature heating, no open flame, high thermal conversion rate, by the power supply voltage is very small, natural long life and other traditional heating elements can not be compared to the advantages of the application of electric heating apparatus more and more favored by the R & D engineers. Constant temperature heating PTC thermistor can be made into a variety of shape structure and different specifications, the common ones are round piece-shaped, rectangular, rectangular, circular, and honeycomb porous shape. The above PTC heating elements and metal components can be combined to form various forms of high-power PTC heaters.
PTC heater according to the conduction method：
(1) PTC ceramic heaters mainly by heat conduction. Its characteristic is through the PTC heating element surface mounted electrode plate (conductive and heat transfer) insulation layer (insulation and heat transfer) heat transfer accumulation plate (some also have additional heat transfer adhesive) and other multi-layer heat transfer structure, the PTC element issued by the heat to the object being heated.
(2) Various PTC ceramic heaters that conduct convective heat transfer with the formed hot air. It is characterized by high output power, and can automatically adjust the blowing air temperature and output heat.
(3) infrared radiation heater. The characteristics of the actual use of PTC components or heat conductive plate surface quickly emitted heat directly or indirectly stimulate the contact with its surface far-infrared coating or far-infrared material so that the radiation out of infrared, it constitutes a PTC ceramic infrared radiation heater.
PTC heater according to structural characteristics：
(1) ordinary practical type PTC ceramic heater. These appliances are mainly: electric mosquito medicine repellent, hand warmer, dryer, electric heating plate, electric iron, electric soldering iron, electric heat bonding device, curling iron, etc.. Its characteristics are not much power, but high thermal efficiency is very practical.
(2) automatic thermostat type PTC heater. This type of apparatus are: small crystal device thermostat tank, thermostat incubator, electronic thermos, thermos, thermos cup, thermos plate, thermos cabinet, thermos table, etc.. Its characteristics are automatic heat preservation, simple structure, good thermostatic characteristics, high thermal efficiency, and wide range of ambient temperature.
(3) hot air PTC heater. This type of hot air PTC heaters are mainly: small warm air heater, electric blowers, room warmers, dryers, dryer cabinets, dryers, industrial drying equipment, etc.. Its characteristics are the output of hot air power, fast heat, safety, can automatically adjust the wind temperature and power consumption.
Post time: Apr-07-2023
