FAN ASSEMBLY WITH BACKFLOW PREVENTING STRUCTURE

摘要

A fan assembly for a computer system includes a fan and a frame connected to the fan. A number of louvers are rotatably connected to the frame and are capable of rotating between an open position in response to air pressure established by the fan in which air is permitted to flow through the fan, and a closed position under a force of gravity when the fan is inoperable in which the louvers block the air to flow through the fan. Each louver defines at least one groove along a width direction, and each of the at least one groove allows two portions at opposite sides to be broken off from each other.