Heat dissipation module

摘要

A heat dissipation module includes a centrifugal fan and a heat pipe. The centrifugal fan includes an outer housing, a heat dissipation fin array, a retaining wall, an impeller and a rotation-driving device. The outer housing includes an axial air inlet, an axial air outlet and a radial air outlet. The heat dissipation fin array is located at an inner wall of the radial air outlet. The retaining wall is located on a flat wall of the outer housing on which the axial air outlet is located. The retaining wall is in contact with an inner wall of an electronic device to collectively form a circulation channel so as to guide airflows output from the axial air outlet through the flat wall with which the heat dissipation fin array is aligned, and into the axial air inlet. The heat pipe is in contact with the heat dissipation fin array.

主权项

1. A heat dissipation module comprising:
a centrifugal fan comprising:
an outer housing including an axial air inlet, an axial air outlet and a radial air outlet, wherein the axial air outlet is disposed at a corner of the outer housing where a tongue portion is located;a heat dissipation fin array disposed at an inner wall of the radial air outlet;a retaining wall disposed on a flat wall of the outer housing on which the axial air outlet is located, the retaining wall being in contact with an inner wall of an electronic device to collectively form a circulation channel so as to guide airflows output from the axial air outlet through an area of the flat wall with which the heat dissipation fin array is aligned, and into the axial air inlet;an impeller disposed within the outer housing; anda rotation-driving device disposed within the outer housing and used to rotate the impeller; and a heat pipe being in contact with the heat dissipation fin array, wherein the retaining wall and the heat pipe are disposed at two opposite sides of the heat dissipation fin array.