How does PTC Heater work?

PTC Heater, a positive temperature coefficient heater, is an efficient electric heating device that utilizes the characteristics of PTC (Positive Temperature Coefficient) material. Its working principle is unique and exquisite. Through the special resistance-temperature characteristics of PTC material, it realizes automatic constant temperature and Dual function for efficient heating. The core of PTC Heater lies in its internal PTC ceramic heating element. This material has a unique physical property: as the temperature increases, its resistance value increases significantly. This feature is the key to PTC Heater's automatic constant temperature control.

When the PTC Heater is powered on, current begins to pass through the PTC ceramic heating element to generate heat. As the heat accumulates, the temperature of the heating element gradually increases. During this process, the resistance value of the PTC material also increases. Due to the increase in resistance, according to Ohm's law, the resistance encountered when the current flows in the heating element also increases, thereby limiting the passage of current and the generation of heat.

This positive feedback mechanism allows the PTC Heater to automatically adjust its heating power during the heating process. When the temperature reaches the preset value, the resistance of the PTC material increases to a certain extent, causing the current to decrease and the heating power to decrease, thus slowing down the temperature. further rise. When the temperature drops, the resistance value of the PTC material decreases, the current increases, and the heating power increases, promoting the temperature to rise. The PTC Heater can automatically maintain a relatively stable temperature within a certain range.

This automatic constant temperature feature of PTC Heater brings many advantages. It can achieve precise temperature control without the need for additional temperature control devices, greatly simplifying the design and maintenance of the heating system. PTC Heater can avoid overheating during the heating process. occurs, improving the safety of use. The PTC material also has the characteristics of small thermal resistance and high heat exchange efficiency, allowing the PTC Heater to quickly respond to temperature changes and improve heating efficiency.

The wide range of applications of PTC Heater also fully proves its superior performance, from household appliances such as heaters and electric blankets to industrial equipment such as thermostats and ovens, to engine preheating, seat heating, etc. in the automotive industry. PTC Heater It plays an important role because of its unique advantages.