What causes the heat dissipation failure of LED explosion-proof lamps
Date: 2020-11-12 00:54:07 Hits: 94
We have analyzed the following points for the reasons for the heat dissipation failure of LED explosion-proof lamps:




1. The thermal resistance of the LED light source is large, and the heat of the light source cannot be dissipated. The use of thermal paste will make the heat dissipation movement fail.




1. Use the aluminum substrate as the PCB to connect the light source. Because the aluminum substrate has multiple thermal resistances, the heat of the light source cannot be transferred, and the use of thermal paste will make the heat dissipation movement fail.




3. There is no space for thermal buffering of the light-emitting surface, which will cause the heat dissipation failure of the LED light source and the light decay earlier. The above three types of reasons are the main reasons for the heat dissipation failure of LED lighting equipment in the industry. There is no more thorough solution. Some large companies use ceramic substrates for integrated packaging of lamp beads for heat dissipation, but they cannot be widely used due to high costs.




The following points are ways to improve:




1. The roughening of the radiator of the LED explosion-proof lamp is one of the methods to improve the heat dissipation capacity.




The roughening of the surface is not to choose a smooth surface, which can be achieved by physical and chemical methods. Generally, it is sandblasting and oxidation. Coloring is also a chemical method. It can be completed by oxidation. When designing profile abrasives, you can add some Ribs, adding area to improve the heat dissipation capability of the LED explosion-proof lamp.




2. The common way to improve the heat radiation ability is to use black colored exterior treatment.
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