Heating principle and thermal analysis of the PTC Heating Fan

Due to the temperature resistance characteristics of the PTC Heating Fan, the PTC Heating Fan will produce similar thermostat characteristics, through the PTC Heating Fan structure design, to improve the efficiency of the use of electrical energy, is one of the main research content of the current PTC Heating Fan design and manufacturing field. Next, let's take a look at the heating principle and thermal analysis of the PTC Heating Fan. Here are some answers.

Here is the content list:

l The heating principle of the PTC Heating Fan.

l Thermal analysis of the PTC Heating Fan.

The heating principle of the PTC Heating Fan.

The PTC Heating Fan is a PTC thermistor with thermostatic heating characteristics, the principle is that after the PTC thermistor is charged with self-heating temperature rise so that the resistance value into the jump zone, thermostatic heating PTC thermistor surface temperature will maintain a constant value, the temperature is only related to the Curie temperature of the PTC thermistor and the applied voltage, and the ambient temperature is irrelevant. The PTC Heating Fan is a heating device designed to take advantage of the thermostatic heating characteristics of the PTC thermistor. In small and medium power heating applications, the PTC Heating Fan has the advantages of constant temperature heating, no open flame, high thermal conversion rate, minimal influence by the supply voltage, long natural life, and other incomparable advantages of traditional heating elements, which are increasingly favored by R&D engineers in the application of electric heating appliances. Constant temperature PTC thermistors can be produced in a variety of shapes and sizes, including discs, rectangles, strips, rings, and honeycomb porous shapes. The combination of the above PTC heating elements and metal components can form various forms of high-power PTC Heating Fans.

Thermal analysis of the PTC Heating Fan.

To address the problems of uneven temperature distribution and deterioration of heat transfer performance within the PTC Heating Fan, a thermal analysis of the overall structure of the PTC Heating Fan was carried out to propose a solution to the problems of uneven temperature distribution and weak heat transfer performance. Through the thermal analysis of the heating core, the relationship between the PTC sheet arrangement and the internal temperature distribution of the PTC Heating Fan is determined, and an optimal arrangement model is proposed. Through thermal numerical calculations and simulations of the fins, the relationship between the size of the fins and the heat transfer performance is determined and the parameters of the fins are optimized to minimize thermal resistance. Finally, a comparison between the optimized PTC Heating Fan and the original PTC Heating Fan was carried out. The results show that the thermal resistance of the optimized PTC Heating Fan is reduced by 5.62% compared to the original PTC Heating Fan and the heat transfer performance is better.

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