US Patent 10946958 Unmanned aerial vehicle having duct structure

An unmanned aerial vehicle is disclosed. The unmanned aerial vehicle includes a frame configured to fix a motor. The unmanned aerial vehicle also includes a housing configured to enclose the frame. The housing includes a top mesh corresponding to an upper surface of the housing and a bottom mesh that covers a portion of a bottom surface of the housing. The housing also includes middle part coupled to the top mesh and the bottom mesh. The housing also includes a plurality of duct areas that penetrate each of the top mesh, the bottom mesh, and the middle part. The motor and a propeller connected to the motor and for rotating are positioned within the duct area.