Led lights in the process of work, the chip with a light, basically all the remaining energy transformed into heat energy. But too high temperature will seriously affect the service life of the led street lamp. So, it is necessary to give enough focus on led lamps and lanterns, heat dissipation problem: led lamps and lanterns, heat
in the process of led street light running, chip basically all except the light energy is converted into heat energy. Higher temperatures will seriously affect the service life of the led street lamp. Therefore, it is necessary to heat to give enough attention to led lights: leds thermal solution is simply to solve various problems caused by hot. Main traffic led lights should have the following types: 1. Led lamp structure bending and fracture due to thermal expansion. This is because the led street lamp by various materials with different coefficient of thermal expansion and contraction of the different parts. Therefore, when the temperature change and contraction, the material may be bent, and when it expands, cracking occurs. 2. Led street lamp electronic circuits work disorder linked to hot weather. When the temperature rise of electronic equipment in the semiconductor components, electrical impedance will become smaller, easy to form a 'temperature - Impedance drop - Current increase - Increase heat - A vicious cycle of temperature rise ', burn out. 3. High temperature can cause the led street lamp material damage and deterioration of quality. The higher the temperature of the material used in the electronic equipment, the faster the oxidation. High temperature oxidation repeatedly will shorten the service life of led lights, For example, if the power of the LED street light more than 80 degrees, the service life of every 5 degree will be cut in half) 。 At the same time, repeated heating, material multi-expansion, cold for many times, can reduce the strength of the material, or even damage failure.