How does the solar street light source dissipate heat?

How does the solar street light source dissipate heat? The normal LED street light system has a design called the heat-pressing wind blowing effect. It can dissipate heat through natural exhaust. The common chimney has a certain height and the pressure difference formed by the drop. Natural ventilation to form airflow. The principle we use on the street lamp is that the middle of the road lamp pole is hollow, and the air is drawn to the radiator, and the air is exhausted to dissipate heat.

According to the introduction of solar street light manufacturers, the heat dissipation method of LED street lights in the popular sense, active heat dissipation is mainly through water cooling and fans to increase the air flow speed on the surface of the radiator to take away the heat on the heat sink and improve the heat dissipation efficiency. According to the subdivision performance, there are: natural convection heat dissipation, forced heat dissipation by adding fans, heat pipe and loop heat pipe heat dissipation, etc. The system of forced cooling by adding fans is complex and has low reliability, and the heat dissipation methods of heat pipes and loop heat pipes are costly. The street lamp has the advantages of outdoor use at night, the heat dissipation surface is located on the side, and the body size is less restricted, which is conducive to natural convection heat dissipation of the air. Therefore, it is recommended to choose the natural convection heat dissipation method as much as possible for the led street lamp.

The problem of heat dissipation is relatively important. The entire chip emits a lot of heat when it emits light, and their light efficiency will gradually decrease with the increase of temperature. When the temperature is higher than 20 degrees Celsius, the light efficiency will drop by about 5%. In the whole process of these products produced by solar street light manufacturers, the life and light decay of all LED chips may be greatly affected.

In the process of solar street lamp manufacturers using this kind of equipment in actual facilities, the reliability is relatively low, the cost of the loop heat pipe heat dissipation method of the whole equipment is relatively high, and the whole street lamp system generally speaking, the power of the lamps may not be As ideal as we imagined, solar street lights can be used outdoors at night, and their heat dissipation surfaces are basically on both sides, and may be relatively small due to body size restrictions, which is conducive to the natural convective heat dissipation of the air.