US 2011/0030930 A1 · HEAT DISSIPATION DEVICE

Abstract

A heat dissipation device includes a heat sink, an axial fan and a fan cover. The heat sink includes a plurality of fins defining a plurality of longitudinal airflow channels therebetween. The axial fan is mounted on a top side of the heat sink. The axial fan defines an air inlet located adjacent to and communicating with the airflow channels of the heat sink. The fan cover is between the heat sink and the axial fan. The fan cover includes a side plate surrounding a top end of the heat sink to make the axial fan just draw cooling air into the heat sink from a position around a bottom end of the heat sink. The cooling air flows upwardly through the heat sink to the air inlet of the axial fan to thereby take heat away from the heat sink.

Claims11

Dependent claims

A heat dissipation device comprising:

a heat sink comprising a plurality of fins defining a plurality of longitudinal airflow channels therebetween;
an axial fan mounted on a top side of the heat sink, the axial fan defining an air inlet located adjacent to and communicating with the airflow channels of the heat sink and an air outlet located above the air inlet;
and
a fan cover between the heat sink and the axial fan, the fan cover comprising a side plate surrounding a top end of the heat sink to make the axial fan just draw cooling air into the heat sink from a position around a bottom end of the heat sink, the cooling air flowing upwardly through the heat sink to the air inlet of the axial fan to thereby take heat away from the heat sink.

1 more element

Dependencies are inferred from the claim text.

Heat dissipation device

Life of this patent

Heat dissipation device

Life of this patent

Abstract

Claims11