PTC Heating Sheet + Thermal Conductive Silicone Sheet: Uncover The Secret of Efficient Constant Temperature!

What is a PTC heater?

PTC heating element is a high-tech heating element with self-temperature control function. Its magic lies in that the higher the temperature, the greater the resistance! When the temperature rises to the set value, the PTC heating element will automatically reduce the flow of current to avoid overheating, thereby achieving self-limiting temperature and constant temperature heating. Compared with traditional resistance wire heating, PTC heating element is not only safer and more efficient, but also has a longer service life.

The core advantages of PTC heating sheet:

• Automatic constant temperature, no overheating or burning

• Energy-saving and environmentally friendly, no need for complex thermostat

• Long service life, low attenuation rate

• Widely used in home appliances, medical, automotive, industrial heating

Thermally conductive silicone sheet: the best partner for PTC heaters

Although the PTC heater has a constant temperature function, if there is no efficient heat dissipation management, the heat is difficult to transfer, which may affect the service life. At this time, the thermal conductive silicone sheet comes into play!

Three key functions of thermal conductive silicone sheet

• High-efficiency heat conduction improves heating efficiency

There are often small gaps between PTC heating sheets and heat dissipation components (such as aluminum heat sinks and metal shells), and these gaps will hinder heat conduction. Thermally conductive silicone sheets can perfectly fill these gaps, allowing heat to diffuse evenly, thereby improving heating efficiency.

• Electrical insulation to ensure safety

PTC heating sheets need to be powered on to work. If ordinary thermal conductive media do not have insulation properties, they may cause short circuits or even safety accidents. Thermally conductive silicone sheets not only have excellent thermal conductivity, but also have high electrical insulation, making the entire system safer and more reliable.

• Buffering and shock absorption to extend life

PTC heating sheets will expand and contract during operation. If there is no buffer material, it may cause structural damage. The softness and compressibility of thermally conductive silicone sheets can effectively absorb mechanical stress, reduce damage between components, and at the same time reduce the impact of vibration, further improving the stability of the equipment.

Application scenarios revealed: PTC heating sheet + thermal conductive silicone sheet are everywhere!

• Household appliances: heater, electric kettle, air conditioning heating module

In heaters, air conditioners and other equipment, PTC heating sheets are responsible for providing heat, while thermal conductive silicone sheets ensure that heat can be efficiently transferred to the heat sink or housing, making heating faster and more uniform.

• Medical equipment: physiotherapy devices, warm mattresses, constant temperature incubators

In the medical field, the stability of temperature control is crucial. Thermal conductive silicone sheets not only improve the thermal conduction efficiency of PTC heating sheets, but also effectively insulate to ensure patient safety.

• Automotive electronics: seat heating, steering wheel heating, rearview mirror defrosting

Driving in winter, the cold seats make people shiver? Don't worry! PTC heating sheets are paired with thermal conductive silicone sheets to ensure that the seats heat up quickly, the steering wheel is no longer cold, and driving is more comfortable! At the same time, thermal conductive silicone sheets can also prevent damage to the heating system in a humid environment and improve durability.

How to choose the right thermally conductive silicone sheet?

Since thermally conductive silicone sheets are so important, how should we choose them?

• The thermal conductivity matches the requirements of the PTC heating sheet: too low a thermal conductivity will affect heat conduction, and too high a thermal conductivity may not be cost-effective.

• Sufficient high temperature resistance: ensure long-term work without aging or cracking.

• Appropriate thickness and compression rate: too large a thickness will reduce the heat transfer efficiency, and too thin a thickness may not be able to fill the gap.

• High stability and durability: choose a brand that is long-term stable and not prone to aging to ensure that the performance does not decrease after long-term use.

Summary

Thermally conductive silicone sheets are the perfect partner for PTC heaters! Whether it is household appliances, medical equipment or automotive electronics, PTC heaters are used everywhere. As a "heat transfer expert", thermally conductive silicone sheets not only improve heating efficiency, but also ensure electrical safety and equipment stability. 

In the future, with the development of science and technology, the performance of thermal conductive materials will continue to be optimized, providing better thermal management solutions for PTC heaters and more electronic devices. The next time you use a heater or electric blanket, remember that behind their warmth, there is a piece of thermally conductive silicone sheet working silently!