CENTRIFUGAL FAN

摘要

A centrifugal fan includes a housing including an air collecting portion, a first frame and a second frame. The air collecting portion has an air outlet defined in one end thereof. The first and second frames are located at two opposite sides of an opposite end of the air collecting portion. The first and second frames each define a receiving space therein for rotatably receiving an impeller. The first and second frames each further define a vent hole therein. The receiving spaces of the first and second frames communicate with the inner space of the air collecting portion via the vent holes thereof. Airflow generated by the two impellers travels to the inner space of the air collecting portion through the vent holes of the first and second frames, and exits the centrifugal fan through the air outlet of the air collecting portion.