Thermal Analysis of Thermal Conductivity of Headlamp Reflectors

摘要

Headlamps in cars are comparably small in size; however, they help in expanding the driver's view and alerting other cars and pedestrians of the car's presence. Additionally, they are an important part that affects the design of the car. we analyzed the temperature characteristics within headlamps according to specific thermal conductivity using finite element analysis. This was done in order to compare with the heat protection performance of headlamps, when heat protection elements are used to manufacture reflectors, according to the specific thermal conductivity of the heat protection elements. First we created a 2D cross-section of headlamp concept design and analyzed the temperature distribution from the bulb. Based on the results of the 2D analysis, we designed a headlamp reflector model to be used in an actual car and analyzed the lamp's temperature characteristics caused by the specific heat thermal conductivity. From the results of the analysis, we determined the thermal conductivity rate appropriate for lowering the internal temperature of the headlamp below 100°C.