A heat dissipation apparatus has an enclosure, in which a lateral fan seat is
integrally
formed with the enclosure. The lateral fan seat divides the interior space of the
enclosure into an upper chamber and a lower chamber. An axis is installed across
the upper and the lower chambers through a center of the fan seat. A coil set,
a magnetic element and a plurality of blades are mounted about the axis in each
of the upper and lower chambers. Thereby, two sets of fans are formed in a single
enclosure to increase the heat dissipation effect while the assembly convenience
is improved.
