An electronic device enclosure includes a chassis having a base plate, a number of fans, a number of securing boards mounted on the corresponding fans, and a number of pivot members. The receiving bracket includes a first sidewall, a second sidewall parallel to the first sidewall, and a bottom wall secured to the base plate and connecting the first sidewall to the second sidewall together such that the first sidewall, the second sidewall, and the bottom wall cooperatively define a receiving housing configured for receiving the fans. The pivot members each has a pivot end attached to the corresponding securing boards and a securing end secured to the first sidewall of the receiving bracket. Each pivot member is capable of rotating about a pivot axis of the securing board and configured for securing the corresponding fan to the receiving housing.