For the reasons for the heat dissipation failure of explosion-proof LED lamps, we have analyzed the following points:
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 transmitted. The use of thermal paste will make the heat dissipation movement fail.
3. There is no certain space for thermal buffering of the light-emitting surface, which will cause the heat dissipation failure of the LED light source and the early light decay. The above three types of reasons are the main reasons for the failure of heat dissipation of LED lighting equipment in the industry. There is no complete solution. Some large companies use ceramic substrates for integrated packaging of lamp beads to dissipate heat, but they cannot be widely used due to high costs.
Here are some ways to improve:
1. Roughening the surface of the radiator of explosion-proof LED lamps is one of the methods to improve the heat dissipation capacity.
The roughening of the surface means that the smooth surface is not selected. It can be achieved by physical and chemical methods. Generally, sandblasting and oxidation methods are used. Coloring is also a chemical method, which can be completed by oxidation. Increase the area to improve the heat dissipation capability of the explosion-proof LED lamp.
2. The common way to improve heat radiation capacity is to use black colored surface treatment.
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