Talking about the function and working principle of LED radiator2018-08-16
The main function of the heat sink is to continuously derive and dissipate the heat generated by the operation of the LED chip to the environment, so that the temperature of the chip is kept within the required range, thereby ensuring that the LED lamp can work normally. The quality of the heat sink depends mainly on the thermal resistance of the heat sink. The smaller the thermal resistance, the lower the junction temperature of the LED light under the same conditions, and the lower the junction temperature of the LED, the longer the life of the chip will be. The thermal resistance of the heat sink should include the thermal resistance and the thermal resistance.
For a certain shape of the heat sink, the thermal resistance of the heat conduction is mainly related to the thermal conductivity of the heat sink material. The greater the thermal conductivity, the smaller the thermal conductivity and the better the thermal conductivity; under certain environmental conditions, the thermal resistance of the heat dissipation depends mainly on the heat sink. The heat dissipation area and the radiation coefficient of the surface material of the heat sink, the larger the heat dissipation area, the higher the radiation coefficient, the smaller the heat dissipation resistance, and the better the heat dissipation effect.
Therefore, the LED lamp radiator must have a certain heat dissipation area, and the material of the heat sink must have a certain thermal conductivity and a high heat radiation coefficient; in addition, the heat conductive material itself should also have light weight, easy processing, and low price.