Patent ID: 7740054

Claim:
A heat dissipation device, comprising: a heat dissipation fin module; a heat pipe, connected to the heat dissipation fin module at one end and connected to a heat generating source at an opposite end; and a centrifugal fan, comprising: a centrifugal impeller; a motor, rotating the centrifugal impeller; and a spiral housing, enclosing the centrifugal impeller and the motor, the spiral housing comprising an air inlet, a first air outlet and a second air outlet, the air inlet exposing the centrifugal impeller such that the rotating centrifugal impeller introduces air through the air inlet, the first air outlet connecting to the heat dissipation fin module and the heat pipe, the first air outlet and the second air outlet being disposed at a same edge of the spiral housing and positioned to divide the air into a first portion flowing below the heat pipe and a second portion flowing out of the spiral housing and above the heat pipe, the heat pipe being visible when viewed through the second air outlet, wherein the heat generating source is located at an end of the heat pipe distal from the heat dissipation fin module and the second air outlet.