The main design of the traditional LED street lamp design focuses on the lumens of LEDs, and the heat dissipation is less concerned. In fact, LED's lumens are rapidly increasing. In 2009, the single tile flow of LEDs has reached 100 lumens, and this value is still growing rapidly. The corresponding theoretical system of heat transfer has matured, and the heat transfer methods we can use are basically clear: transmission, convection, radiation, and phase change heat transfer. Therefore, in terms of heat transfer or heat dissipation, the measures we can take are visible and limited.

LED street light heat dissipation technology is generally used for heat -conducting plates. It is a 5mm thick copper plate. In fact, it is a thermal plate, which warms the heat source. There are also heat dissipation films to dissipate heat, but the weight is too large. The weight is very important on the street light system, because the street lights are 9 meters high. If it is too heavy, it will increase, especially when typhoons and earthquakes may cause accidents. Domestic manufacturers use the world's first needle -shaped heat dissipation technology, needle -shaped radiator. The heat dissipation efficiency is greatly improved compared to the traditional shelter heat sink, which can make the LED knot temperature more than 15 ° C or more lower than that of ordinary radiator, and waterproof performance is better than ordinary aluminum -type radiator. At the same time, it also improved in weight and volume. Essence In addition, graphite heat sinks developed for high -power LED lamps also have good thermal conductivity and heat dissipation performance.

The main heat dissipation methods include: natural flow heat dissipation, compulsory heat dissipation, heat pipe and circuit heat pipe heat dissipation. The compulsory heat dissipation method of the fan is complicated, the reliability is low, and the heat dissipation method of heat pipes and circuit thermal pipes is high. The street lights have the advantages of outdoor night use, the heat dissipation surface on the side, and less limited body shape. It is conducive to the advantages of natural air heat dissipation. Therefore, LED street lights are recommended to choose naturally on -heat dissipation methods as much as possible.

The problems existing in the LED street lighting design are: the area of the heat dissipation fins is set at random, the layout of the heat dissipation wing tablets is unreasonable, the layout of the lamp heat dissipation fins does not take into account the use of the lamps As the link, neglecting the flow heat dissipation link, although many manufacturers have considered various measures: heat pipes, circuit thermal pipes, adding heat -conducting silicon grease, etc., but did not realize that the heat still depends on the appearance of the lamps. The balance of heat transfer, if the temperature distribution of the wing tablet is seriously uneven, it will cause part of the wing tablets to do not play or have limited effects.

Heat dissipate high -power LED street lighting。. The purpose is to solve the problem of heat dissipation of high -power LED lamps, and propose a air -to -air heat dissipation high -power LED street lamp set, which includes lamp head components, lamp heat sink components and lamp tail components. , Open at both ends, on both sides of the arc column surface, the facade, and the facade also has array pores. There are 4 to 10 axial arranges in the inner cavity of the arc strip -shaped shell. The two faces on both sides of the band -tend hot plate and the arc -string -shaped shell on both sides are also open. The surface forms a heat dissipation channel of 5 to 11 hot air flow in the lamp heat sink component. The advantages of this utility model are that there are multiple heat dissipation channels in the inner cavity of the heat dissipation body. The heating plate of the ribs also acts as the heat sink, the heat exchange surface increases, and the thermal emissions efficiency is high.