Once-through forced air-cooled heat sink for a projection display apparatus
AssigneeNEC Viewtechnology, Ltd.
InventorYoshifumi Nishimura
Life of this patent
Estimating the term…
Abstract
A once-through forced air-cooled heat sink according to the present invention comprises: a heat sink portion which is configured to be attached to an object that is to be cooled; and a blower for introducing cooling air into the heat sink portion. The heat sink portion comprises: an air inlet; an air outlet; and fins for dissipating heat in the object with the aid of cooling air which is supplied by the blower. The air inlet, the air outlet, and the fins are arranged such that the cooling air is introduced from the air inlet, then cools the fins and flows to the air outlet in a once-through pattern.
Claims20
A once-through forced air-cooled heat sink comprising:
- a heat sink portion which is configured to be attached to an object that is to be cooled;
- and
- a blower for introducing cooling air into said heat sink portion,
- wherein said heat sink portion comprises:
- an air inlet;
- an air outlet;
- and
- fins for dissipating heat in said object with an aid of cooling air which is supplied by said blower,
- wherein said fins comprise a plurality of groups, including a group having fins with a configuration which is different from other groups, said plurality of groups including a first group which directs said cooling air from said air inlet to another group, and
- wherein said air inlet, said air outlet, and said fins are arranged such that the cooling air is introduced from said air inlet, then cools said fins and flows to said air outlet in a once-through pattern.
A once-through forced air-cooled heat sink comprising:
- a heat sink portion which is configured to associate with an object to be cooled;
- a blower to introduce air into the heat sink portion through an opening and to exhaust the air through a plurality of exhaust ports;
- and
- plural fins to dissipate heat in the object by convection of the air against the plural fins, the air being supplied by the blower, the plural fins comprising:
- a first fin group to receive air from the opening and to direct the air through an air flow path;
- a second fin group to receive air from the flow path of the first fin group, to direct the air along an inner surface of the second fin group, and to then direct the air to the air flow path of the first fin group, and
- a third fin group to receive air from the flow path of the first fin group, to direct the air along a plurality of inner surfaces of the third group, and to then direct the air to the plurality of exhaust ports.
Dependencies are inferred from the claim text.