Compared with light tube electric heating, the volume of PTC under the same power is relatively small, and it is easy to install, but it has certain requirements for wind speed. If sufficient heat dissipation is not available, its power will automatically drop sharply, and the surface temperature of the heater will remain at this time. At the mercy of the Curie temperature (usually at 250°C), it will not produce "redness" signs on the surface of heaters such as electric heating tubes.
PTC heater is also called PTC fever body, which is composed of PTC ceramic fever element and aluminum tube. This type of PTC heater has the advantages of low thermal resistance and high heat exchange compliance. It is an electric heater with automatic constant temperature and power saving. The protruding feature lies in the safety function. Under any usage conditions, there will be no signs of "redness" on the surface of the electric heating tube heater, which may cause burns, fires and other safety hazards.
It is composed of galvanized outer pressure plate, stainless steel corrugated spring sheet, galvanized inner pressure plate, single-layer aluminum heat sink, ptc fever sheet, double-layer aluminum heat sink, nickel-plated copper electrode and pps high-temperature plastic electrode sheath. Due to the U-shaped corrugated heat sink, this product has improved its heat dissipation rate, and summarized the advantages of adhesive and mechanical, and fully considered the various thermal and electrical signs of the ptc fever when working, and its connection force is strong. Excellent heat conduction and heat dissipation performance, high obedience, safety and reliability. This type of PTC heater has the advantages of low thermal resistance and high heat exchange compliance. It is an electric heater with automatic constant temperature and power saving. Its major feature lies in its safety function, that is, when the fan fails to stop, the PTC heater will not get enough heat dissipation, and its power will automatically drop sharply. At this time, the surface temperature of the heater is maintained at the Curie temperature. (Usually high or low at 250°C), so as not to produce "redness" signs on the surface of heaters such as electric heating tubes.
Principle of PTC heater:
The constant temperature heating PTC thermistor has the characteristic of constant temperature fever. The principle is that after the PTC thermistor is powered on, the resistance value will enter the jump zone by self-heating. The surface temperature of the constant temperature heating PTC thermistor will maintain a constant value. This temperature is only the same as the PTC The Curie temperature of the thermistor is related to the applied voltage, but basically has nothing to do with the temperature of the situation. PTC heater is a heating device that uses constant temperature heating PTC thermistor constant temperature fever feature plan. In small and medium-power heating places, PTC heating has the advantages of constant temperature fever, no open flame, high heat conversion rate, minimal influence of the power supply voltage, long natural life and other ancient fever components that cannot be compared. The use of electric heating appliances is becoming more and more popular. The love of R&D engineers. The constant temperature heating PTC thermistor can be made into a variety of appearance layouts and different specifications. The most common ones are disc, rectangle, strip, ring and honeycomb porous. Combining the above-mentioned PTC fever elements and metal components can form various forms of high-power PTC heaters.
PTC heaters are divided into conduction methods:
(1) PTC ceramic heater based on heat conduction. It is characterized by a multi-layer heat transfer layout such as electrode plates (electrical conduction and heat transfer) and insulation layer (electrical insulation and heat transfer) thermally conductive heat storage plates (some with thermally conductive glue) mounted on the surface of the PTC fever element. The heat emitted is transferred to the heated object.
(2) Various PTC ceramic hot air heaters that conduct convective heat transfer by the formed hot air. It is characterized by high output power, and can automatically adjust the blowing wind and output heat smoothly.
(3) Infrared radiation heater. Its characteristics actually use the heat quickly emitted from the surface of the PTC element or the heat-conducting plate to simply or indirectly cause the far-infrared paint or far-infrared material that touches its surface to radiate infrared rays, which constitutes a PTC ceramic infrared radiant heater.
PTC heaters are divided into layout features:
(1) General applicable PTC ceramic heater. Such appliances are important: electric mosquito repellents, hand warmers, dryers, electric heating plates, electric irons, electric soldering irons, electric adhesives, curling irons, etc. Its characteristic is that the power is not large, but the thermal compliance is high and it is very suitable.
(2) Automatic constant temperature PTC heater. This kind of utensils must include: small crystal device constant temperature bath, constant temperature cultivation box, electronic thermos bottle, incubator, thermos cup, insulation plate, insulation cabinet, insulation table, etc. It is characterized by automatic heat preservation, simple layout, good constant temperature characteristics, high thermal compliance, and wide temperature limitations in use.
(3) Hot air PTC heater. This kind of hot air PTC heaters are essential: small warm air heaters, hair dryers, heating machines, dryers, drying wardrobes, clothes dryers, industrial drying equipment, etc. It is characterized by high output hot air power, rapid heating, safety, and automatic adjustment of wind compliance power consumption.
Benefits of PTC in air conditioner: Air conditioner PTC corrugated heater is a kind of self-controlling temperature heater.
1. The constant temperature heating PTC thermistor has the characteristic of constant temperature fever. The principle is that the PTC thermistor self-heats after being powered on to make the resistance enter the jump zone, and the surface temperature of the constant temperature heating PTC thermistor will maintain a constant value. It is related to the Curie temperature of the PTC thermistor and the applied voltage, but basically has nothing to do with the temperature of the situation.
2. The PTC heating element is the heating element that uses the constant temperature heating PTC thermistor constant temperature fever feature plan. In small and medium-power heating places, PTC heating elements have the advantages of constant temperature fever, no open flame, high heat conversion rate, minimal influence on the power supply voltage, long natural life and other ancient fever elements that cannot be compared. The use of electric heating appliances has become increasingly popular. The love of R&D engineers.
3. The constant temperature heating PTC thermistor can be made into a variety of appearance layouts and different specifications, and the more common ones are disc, rectangle, strip, ring and honeycomb porous. Combining the above-mentioned PTC fever elements and metal components can form various forms of high-power PTC heating elements.
