The principle of the PTC heater is that after the thermistor is powered on, it heats up by itself, so that the resistance enters the jump zone, and the PTC thermistor is heated at a constant temperature, and the surface temperature will persist. The temperature is only related to the temperature of the PTC thermistor and the applied voltage, and has nothing to do with the ambient temperature.
Features of PTC heater:
1. Cost-saving, short-lived, no need for special temperature controllers and thermal resistance thermocouples and other temperature sensors to stop the temperature response to stop heating control of the heater. Its temperature adjustment is based on its own data characteristics, so that this product has a great The service life of other heaters. The temperature rises rapidly, the temperature can be automatically controlled when the fan fails, and the service life is long
2. Safe, green and environmentally friendly, the heater body is designed to have a multi-level heating temperature below 200 degrees Celsius. The body will not be red under any conditions and there is a maintenance isolation layer. Any application site does not require asbestos and other heat insulation materials for cooling treatment. Rest assured that there is no problem of burns to the human body and fire.
3. It saves electricity, compared to electric heating tubes and resistance wire heating products. It relies on the characteristics of the material itself and adjusts its own thermal power output according to the change of the ambient temperature, so it can optimize the heater's electrical energy consumption and control it to a minimum, and at the same time, it has high heating efficiency. The data also greatly improves the application efficiency of electric energy.
The applicable new type touches a new type of PTC heater for cabinet heating, including: a shell, the shell air inlet and shell air outlet are arranged on the shell wall; the PTC heater is arranged in the shell and located on the side of the air outlet of the shell; centrifugal fan , Set in the shell and located on the side of the air inlet of the shell. The air volume of the new centrifugal fan is average, the air volume difference between the surrounding and the center point is small, and there is no dead corner. The temperature of the PTC heating component will drop relatively evenly after being blown and dissipated, so that its resistance value will drop significantly. The power of the heater will be greatly improved, and the temperature and breeze volume of the air outlet of the shell will be more even. On the other hand, using the combination of PTC heater and centrifugal fan, due to the flat shape of the centrifugal fan, it can reduce the thickness of the heater to fit the device in the cabinet. Compared with the axial flow heater, it has a square structure. , It is difficult to make a thinner heater.