US Patent 9593687 Ceiling fan

A ceiling fan includes a suspending unit and a ceiling fan body. The ceiling fan body includes a shaft; a motor; a plurality of blades; an upper body cover having a first opening, at a central part, for passing the shaft therethrough, and a second opening outside the first opening; and a lower body cover. The upper body cover rotates with the blades and has a first wall standing vertically between the first opening and the second opening.