What is the principle of LED street light technology?

Traditional LED street light designs focus on the lumen count of the LEDs and pay less attention to the heat dissipation. The number of LED lumens is increasing rapidly. The means of heat transfer from LED street lights that we can use are clear: conduction, convection, radiation, and phase change heat transfer. Therefore, in the heat transfer or heat dissipation problem, we can take measures that are visible and limited. So what is the principle of LED street light technology? Let's take a look at it next.

This is the content list:

l LED street light heat dissipation technology

l LED street light heat dissipation methods

l Heat dissipation type high power LED street light

LED street light heat dissipation technology

LED street light heat dissipation technology, the general use of more than the thermal conductivity plate way, is a 5mm thick copper plate is considered an even temperature plate, the heat source is evenly heated off. There are also installed heat sinks to dissipate heat, but the weight is too large. Weight is very important in the LED street light system, because the LED street light height of 9 meters, if too heavy danger increases, especially in the event of typhoons, earthquakes may produce accidents. Domestic manufacturers use the world's first LED street light pin heat dissipation technology, LED street light pin radiator heat dissipation efficiency than the traditional sheet radiator has improved significantly, can make the LED junction temperature than ordinary radiator lower than 15 ℃, and waterproof performance than ordinary aluminum radiator is better, while the weight and volume have also been improved. In addition, the graphite heat sink developed for high-power LED street lights also has good thermal conductivity and heat dissipation performance.

LED street light heat dissipation methods

LED street light heat dissipation methods mainly include natural convection heat dissipation, forced heat dissipation by adding a fan, heat pipe and loop heat pipe heat dissipation, etc. LED street light has the advantages of natural convection heat dissipation because it is used outdoors at night, the heat sink is located on the side and the size is restricted, so LED street light is recommended to choose natural convection heat dissipation as much as possible. The problems in the design of street light heat dissipation are: the area of heat dissipation fins is arbitrarily set, the layout of heat dissipation fins is unreasonable, the layout of LED street light heat dissipation fins does not take into account the way LED street light is used, which affects the effect of fins, emphasizing heat conduction links, ignoring convection heat dissipation links, despite the consideration of various Measures: heat pipe, loop heat pipe, add thermal grease, etc., but did not recognize that the LED street light heat ultimately depends on the LED street light exterior area to dissipate. Ignore the balance of heat transfer, if the temperature distribution of LED street light fins is seriously uneven, will lead to a part of the fins do not work or very limited role.

Heat dissipation high power LED street light

Heat dissipation type high-power LED street light, its purpose is to solve the problem of high-power LED lamps and lanterns heat dissipation, proposed an air convection heat dissipation type high-power LED street light, LED street light includes a lamp head assembly, lamp heat dissipation body assembly and lamp tail assembly, LED street light heat dissipation body assembly for the arc chord column-shaped shell The LED street light heat sink assembly is an arc-string column housing with openings at both ends, the arc column face on both sides of the face for the vertical surface, the vertical surface also has an array of through-holes, in the arc-string column housing cavity with 4 to 10 axially arranged and with the arc column face and string column face fixed standing ribbed thermal plate, standing ribbed thermal plate and arc-string column housing on both sides of the two vertical surfaces are also open array of through-holes, standing ribbed thermal plate and arc-string column housing on both sides of the two vertical surfaces in the lamp heat sink assembly to form 5 to 11 Heat dissipation channels for hot airflow. Heat dissipation type high-power LED street light new advantage is that the heat dissipation body cavity has more than one hot airflow of heat dissipation channel, the vertical ribbed thermal plate also acts as a heat dissipation surface, heat exchange surface increase, high efficiency of heat emission.

CECEP Latticelighting is a high-tech company focusing on LED energy-saving lighting applications and providing intelligent lighting solutions. China Energy Conservation Group is our largest shareholder, owned by the central government of China. We have a top professional research team and a national laboratory. We will set up LED street lights with good heat dissipation for consumers to use based on the technical principle of LED street lights, if you are interested in LED street lights then you can contact us, our website is www.latticelighting.com.