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US 6,637,502 B1Granted
Heat sink with converging device
AssigneeThermal Corp.
InventorsMark T. North, Steven E. Koffs
Life of this patent
Estimating the term…
Abstract
A cooling system has a heat sink having a plurality of fins. A fan is positioned near the heat sink to blow air between the fins. A flow converging device is positioned between the fins and the fan, to cause air from the fan to converge on a predetermined region of the heat sink. The flow converging device may be, for example, a plurality of wedges or a body having a frustum shaped opening through the body.
Claims12
A cooling system, comprising:
- a heat sink having a plurality of fins;
- a fan positioned near the heat sink to blow air between the fins and including a central hub and at least one blade attached to the hub;
- and
- a flow converging device comprising a plurality of wedges each including an opening therebetween, the opening positioned between the hub and the fins located in the predetermined region of the heat sink, the flow converging device positioned between the fins and the fan, to cause air from the fan to converge on a predetermined region of the heat sink.
1 more element
A cooling system, comprising:
- a heat sink having a plurality of parallel plate fins;
- a fan positioned near the heat sink to blow air between the fins wherein the fan has a shroud and a rotating central hub and at least one blade attached to the hub;
- and
- flow converging means attached to the shroud and positioned between the fins and the fan, to cause air from the fan to converge on a predetermined region of the heat sink wherein the flow converging means include a pair of wedges with an opening therebetween, the opening having two sides that cross the fins, the opening being between the central hub and the region of the heat sink, and the region has a heat source.
1 more element
A method for cooling a device, comprising the steps of:
- (a) rotating at least one fan blade about a central hub of a fan so as to generate an air flow having an outer region with a first flow velocity and an inner region with a second flow velocity less than the first flow velocity;
- (b) directing the air flow through a converging device comprising a pair of wedges having an opening therebetween, so the air flow from the outer region is converged into the inner region;
- and
- (c) directing the converged air flow between a plurality of fins on a predetermined region of a heat sink wherein the opening positioned between the central hub and the predetermined region of the heat sink.
1 more element
A method for cooling a device, comprising the steps of:
- (a) generating an air flow having an outer region with a first flow velocity and an inner region with a second flow velocity less than the first flow velocity;
- (b) directing the air flow through a converging device, so the air flow from the outer region is converged into the inner region;
- and
- (c) directing the converged air flow between a plurality of fins on a predetermined region of a heat sink and into a non-rectangular parallelogram shaped area that overlies at least one hot spot.
1 more element
Dependencies are inferred from the claim text.