Analysis of LED heat dissipation problems2018-10-24
At present, the luminous efficiency of LEDs is still relatively low, resulting in an increase in junction temperature and a decrease in lifetime. In order to reduce the junction temperature to improve the life, it is necessary to pay great attention to the problem of heat dissipation. The heat dissipation design of the LED must be from the beginning of the chip to the entire heat sink, and every step must be given full attention. Improper design of any link can cause serious heat dissipation problems. In the past, LED street lamps suffered a large number of failures in long-term work, more than half of which were caused by lack of heat dissipation design, and the other half was caused by power failure. Therefore, the design of heat dissipation must be given full attention.