sg-thermalpad.com

Home > Products Application

Heat Conducting Film Used for High-power LED (light-emitting diode) Light

Effective thermal management of LED modules is critical for long reliability. AOK's TP series and TC series materials have been used almost exclusively for over ten years by North American and European OEM's of LED modules.AOK provides unique, creative solutions to the leading manufacturers of LED lamps and luminaires around the world.

“Most of the electricity in an LED becomes heat rather than light (about 70% heat and 30% light). If this heat is not removed, the LEDs run at high temperatures, which not only lowers their efficiency, but also makes the LED less reliable. Thus, thermal management of high power LEDs is a crucial area of research and development.” According to leading periodical on “Thermal management of high-power LEDs”

Advanced Materials for Thermal Management of LED

As we are all aware, LEDs have been present in many electronic devices for a number of years. More recent developments in this industry have lead to their vast array of use in all types of lighting, signage and domestic appliance products, to name but a few. In offering alternatives to halogen, incandescent and fluorescent lighting systems for both interior and exterior applications, the possibilities for LEDs are seemingly endless. LEDs offer advantages over traditional lighting forms in terms of adaptability - allowing more design freedom due to the reduced space required and exceptionally long life time - resulting in a cost effective solution for many applications. They are also considerably more efficient, converting the majority of energy to light and thus minimising the heat given off.

Although LEDs are considerably more efficient than traditional lighting forms, they do still produce some heat. This heat can have an adverse effect on the LED and therefore must be managed to ensure the true benefits of this technology are realised. Typically categorised by colour temperature, LEDs are available in a huge number of colour variants. With a change in operating temperature of the LED, a change will also occur to the colour temperature; for example, with white light an increase in temperature could lead to a ‘warmer’ colour being emitted from the LED. In addition, if a variance in die temperatures is present across LEDs in the same array, a range of colour temperatures may be emitted, thus affecting the quality and cosmetic appearance of the device.

Figure 1 is a utility sectional view showing the overall LED lights structure.

1, the light source 2, thermal film body 3, light body  4, radiators

AOK Advanced Materials for Thermal Management of LED Light

The heat conducting silica gel film has good flexibility and caulking property, so that the contact area between a heating body and a heat radiating body is increased, the heat conducting channel is increased, and the temperature of a PCB (printed circuit board) can be effectively reduced. The heat conducting silica gel film is used between the PCB and the heat radiator to conduct the heat of the PCB to the heat radiator, the heat conducting silica gel film is used between the heat radiator and the lamp body to the heat of the heat radiator to the lamp body, and then the heat is dispersed into the air.

AOK TP150 series is designed for thermal interface applications to withstand the worst of temperature and moisture exposure in outdoor LED luminaire applications with modules from Philips, Cree, Bridgelux, etc.It is compressible, it will fill in uneven height differentials and warps between the mating surfaces.

Available in several different forms to suit various applications.

AOK Providing Cost-Effective, Easy-to-Use Solutions to Difficult Cooling Problems!

For Further Information Please Contact Us.