Patent ID: 8737069

Claim:
An electronic device comprising: a cage comprising a mounting plate, the mounting plate defining a ventilation hole, a positioning portion located in the ventilation hole and connected to the mounting plate, and a restriction located on an inner surface of the positioning portion, wherein a height of the restriction is defined relative to the inner surface of the positioning portion; and a fan module secured to the mounting plate, the fan module comprising: a bracket comprising a body, a first sidewall, and a second sidewall, the first and second sidewalls respectively located on opposite sides of the body, the bracket defining a holding space through the first sidewall, the body and the second sidewall, a mounting portion located in the holding space and connected to the first sidewall, a first distance defined between an outer surface of the first sidewall and an outer surface of the mounting portion, and the first distance less than the height of the restriction; and a fan received in the holding space and secured to the mounting portion, comprising a motor having a flat bottom horizontal outer surface away from the first sidewall but close to the second sidewall, a second distance defined between the flat bottom horizontal outer surface of the motor and an outer surface of the second sidewall, and the second distance greater than the height of the restriction.