Reasons for the fast and slow heat dissipation of LED radiators

Do you know what the speed of heat dissipation of the LED radiator is related to? Only by clarifying this  we can know how to judge the quality of the radiator. Here are some of the reasons that we know about the heat dissipation speed of the radiator.

First of all, let's talk about its working principle, which is used to dissipate heat of the LED chip generated  to the surrounding environment when it is working, to keep the temperature of the environment within the range that you need, and to ensure the normal lighting of the LED light. And its heat dissipation speed is determined by its thermal resistance. The thermal resistance is large, and the junction temperature is high at the same time, on the contrary, it is low. The higher the junction temperature, the shorter the life of the chip, on the contrary, the longer the life. The thermal resistance is related to the two parts of heat conduction and heat dissipation thermal resistance.

Then first talk about some related factors of the heat dissipation thermal resistance of the heat sink, that is, the heat dissipation area and the emissivity of the surface material of the radiator. Theoretically, the larger the heat dissipation area and the higher the emissivity coefficient, the smaller the heat dissipation resistance and the better the heat dissipation of the radiator. Otherwise, it is not good. So when choosing a radiator, you can consider the heat dissipation effect of the radiator through this factor . The second is the thermal conductivity and thermal resistance. The thermal conductivity is mainly determined by the thermal conductivity. The greater the thermal conductivity, the smaller the thermal resistance, the better the thermal conductivity and the better the thermal conductivity. Therefore, when choosing a product, we can also observe the thermal conductivity to determine the heat dissipation rate of a product.

From the above, we can know that a good LED radiator needs a certain heat dissipation area, high emissivity and thermal conductivity of the material to be made, so that the heat dissipation effect is good. Moreover, it is best to make materials that have the advantages of corrosion resistance, easy plasticity, low density, etc., so that you can make the good products you want.