筐体内における小型軸流ファンから発生する逆流と実装部品の干渉

抄録

This study describes the relationship between the counterflow generated inside an electronic device and the performance of a small axial fan. It is known that when a fan is operated under low airflow conditions in an electronic device with high-density mounting, the generated counterflow interferes with mounted components near the fan, causing a reduction in airflow. This paper evaluates the effect of the blockage environment in front of the fan on the airflow rate using an obstacle with an air vent. The relationship between fan performance was verified by visualizing how the counterflow interferes with the components. As a result, it was found that there was no correlation with the performance itself, although the growth of the counterflow was confirmed.