Reasons for fast and slow heat dissipation of LED heatsink
The working principle of LED heatsink is to use the LED chip to generate heat when working and radiate it to the surrounding environment, so as to keep the surrounding temperature within the range of their own needs and ensure the normal lighting of LED lamps. Its heat dissipation speed is determined by its thermal resistance. If the thermal resistance is large, the junction temperature will be high at the same time, on the contrary, it will be low. The higher the junction temperature, the shorter the service life of the chip, on the contrary, the longer the service life. The thermal resistance is related to the thermal resistance of heat conduction and heat dissipation.
Some related factors of the heat dissipation thermal resistance of the heatsink are the heat dissipation area and the radiation coefficient of the heatsink surface material. Theoretically, the larger the heat dissipation area and the higher the radiation coefficient, the smaller the heat dissipation thermal resistance, and the better the heat dissipation of the heatsink. Otherwise, it is not good. Therefore, when selecting the heatsink, you can consider the heat dissipation effect of the heatsink through this factor. The second is the thermal conductivity, which is mainly determined by the thermal conductivity. The larger the thermal conductivity, the smaller the thermal resistance, the better the thermal conductivity and the better the thermal conductivity effect. Therefore, when selecting products, we can also observe the thermal conductivity to judge the heat dissipation speed of a product.
Therefore, a good led heatsink needs a certain heat dissipation area, high radiation coefficient and large thermal conductivity of manufacturing materials, so as to have a good heat dissipation effect. Moreover, the production materials should also have the advantages of corrosion resistance, easy plasticity and low density, so as to make the good products they want. Sinda thermal is a professional heatsink manufacturer ，we can provide varieties heatsinks and coolers which inlcuding aluminum extruded heatsink, high performance heatsink, copper heatsink, skived fin heatsink, liquid cooling plate and heat pipe heatsink. please contact us if you have any questions about thermal solution.
