Fig. 1. Automotive headlight diagram. (a) Automobile LED headlight structure; (b) radiator structure; (c) grid diagram of radiator

Fig. 2. Temperature and heat flux density of the radiator. (a) Temperature cloud image; (b) heat flux density image

Fig. 3. Influence of input power on the junction temperature for LED heat dissipating device. (a) Temperature of test point; (b) input power versus junction temperature

Fig. 4. Change trend of thermal resistance at different LED input powers

Fig. 5. Junction temperature versus ambient temperature

Fig. 6. Junction temperature versus convective heat transfer coefficient

Fig. 7. Schematic of the experimental apparatus and experimental platform. (a) Schematic of the experimental apparatus; (b) experimental platform

Fig. 8. Temperature change of the test points of the LED headlamps in the experiment