US 2004/0105233 A1 · Heat dissipation apparatus

Abstract

A heat dissipation apparatus is described. The heat dissipation apparatus is used in an electrical product, and especially in a notebook computer. The heat dissipation apparatus has two cooling fans, at least one heat pipe, and at least two heat dissipation fins. The first fan sucks cooling air from outside of the electrical product. The heat pipe coupling with a heat source transfers heat generated by the heat source to the heat dissipation fins. The first heat dissipation fin and the first fan remove part of the heat out of the electrical product. The second heat dissipation fin further connects with the heat source and the heat pipe to utilize the second fan to remove part of the heat exhausted by the first fan from the electrical product. The heat dissipation apparatus further comprises a third heat dissipation fin and a second heat pipe. The second heat pipe efficiently transfers the heat to each of the heat dissipation fins. The third heat dissipation fin is positioned in an outlet of the second fan to exchange heat again and thus enhance the heat dissipation efficiency.

Claims16

Dependent claims

A heat dissipation apparatus used in an electrical product having a heat source, the heat dissipation apparatus comprising:

a first fan including an inlet, a first outlet and a second outlet, the inlet sucking in cooling air from outside the electrical product via a first opening in a cover of the electrical product;
a first heat pipe, a first end of the first heat pipe connecting with the heat source to transfer heat generated by the heat source to the first fan;
a first heat dissipation fin connecting a second end of the first heat pipe, a first end of the first heat dissipation fin coupling with the first outlet of the first fan and a second end of the first heat dissipation fin coupling with a second opening of the cover of the electrical product;
a second heat dissipation fin connecting with the first heat pipe and the heat source, a first end of the second heat dissipation fin coupling with the second outlet of the first fan, wherein the first heat pipe transfers part of the heat to the first heat dissipation fin and part of the heat to the second heat dissipation fin;
and
a second fan connecting with a second end of the second heat dissipation fin to suck out exhaust air blowing from the second outlet of the first fan, the exhaust air passing over the second heat dissipation fin to exchange heat and then draining out the electrical product.

3 more elements

A heat dissipation apparatus utilizing in an electrical product, the heat dissipation apparatus comprising:

a first fan including an inlet, a first outlet and a second outlet, the first fan sucking in air from outside the electrical product by way of the inlet and exhausting the air to the first outlet and the second outlet;
a first heat pipe, a first end of the first heat pipe connecting with a heat source of the electrical product to transfer heat generated by the heat source to the first outlet of the first fan;
a first heat dissipation fin connecting a second end of the first heat pipe, a first end of the first heat dissipation fin coupling with the first outlet of the first fan and a second end of the first heat dissipation fin coupling with an opening in a cover of the electrical product;
a second heat dissipation fin connecting with the first heat pipe, a first end of the second heat dissipation fin coupling with the second outlet of the first fan, wherein the first heat pipe transfers part of the heat to the first heat dissipation fin and part of the heat to the second heat dissipation fin;
and
a second fan including an inlet and an outlet, the inlet of the second fan connecting with a second end of the second heat dissipation fin to suck out exhaust air passing over the second heat dissipation fin and then draining out the electrical product by way of the outlet of the second fan.

3 more elements

Dependencies are inferred from the claim text.

Heat dissipation apparatus

Life of this patent

Heat dissipation apparatus

Life of this patent

Abstract

Claims16