Modelling of a Multifunction Electromagnetic Interference Shield and Heat Exchanger Device for a Multirotor Drone

Whereas the processing capacity of multirotor drone increases significantly, the specification applying to the hardware to dissipate the heat becomes more challenging. At the same time, the weight must be reduced, and the electromagnetic vulnerability must still be prevented.

In this study, the authors aim at increasing the performance of the drone by taking advantage of new material properties and a science-based approach. A numerical model of the heat transfers in the drone is developed using COMSOL Multiphysics^®. Moreover, two specific analytical models from the literature are identified and solved to predict the shield performance. Thanks to the physic predictions, it is possible to determine the minimum material quantity to achieve the best performances. Design guidelines are derived for the engineers to develop the next generation of multirotor drones.