As an important part of the car, the car light source occupies an extremely important position in the field of lighting. LED solid state light sources for its high efficiency, low energy consumption and good directionality it is gradually being applied in automotive lighting systems, automotive lighting is expected to become the fourth generation light source. However, the use of LED lamps also solve the problem of heat, higher thermal conductivity materials rapid cooling.
Why car LED heat problem is difficult to solve it?
First, high-power LED chip power density is very large, due to the semiconductor manufacturing technology, more than 80% of the input power to heat conversion, less than 20% conversion of light energy. LED chromaticity will deteriorate when the temperature rises. Secondly, car headlights to substantially faster cooling of the halogen headlights requires a large volume of headlights, but due to space limitations, it is not easy to install large lights or is not installed yet, so the heat of the LED is very significant.
Katherine TIS thermoconductive insulating sheet excellent in electrical characteristics can be used in car headlamps LED heat dissipation applications. Thermal insulation sheet is an electrically insulating, thermally conductive, heat curable adhesive insulator, which consists of a thin layer of electrically insulating film composition, the film coated on both sides with a thermally conductive polymer composite. It can be used to permanently connect the IC or other electronic package to the heat sink.
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Reproduced in: https: //www.jianshu.com/p/2c5a10558062