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US 8,785,024 B2Granted
Combination of heat pipe and louvered fins for air-cooling of Li-Ion battery cell and pack
AssigneeGM Global Technology Operations LLC
InventorsTaeyoung Han, Kuo-Huey Chen, Bahram Khalighi
Life of this patent
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Abstract
A heat pipe is described. The heat pipe includes a heat pipe body containing a working fluid; and a louvered cooling fin adjacent to one end of the heat pipe body, the louvered cooling fin extending outward from a surface of the heat pipe body. Air-cooled battery packs containing the heat pipe are also described.
Claims17
At least two heat pipes wherein each of said heat pipes further comprises:
- a heat pipe body containing a working fluid;
- and
- at least two louvered cooling fins, wherein each of said fins further comprises a set of slanted louvers, adjacent to one end of the heat pipe body, each of the louvered cooling fins extending outward from a surface of the heat pipe body;
- and wherein said at least two louvered cooling fins of a first heat pipe are intermeshed with the at least two louvered cooling fins of a second heat pipe so that the fins are parallel to each other.
1 more element
An air-cooled battery pack comprising:
- at least two battery cells;
- and
- at least two heat pipes positioned between the at least two battery cells, each heat pipe comprising:
- a heat pipe body containing a working fluid;
- and
- at least two louvered cooling fins, wherein each of said fins further comprises a set of slanted louvers, adjacent to one end of the heat pipe body, each of the louvered cooling fins extending outward from a surface of the heat pipe body, a portion of each heat pipe body containing the louvered cooling fins defining a condenser section;
- whereby air flowing across the louvered cooling fins cools the battery pack;
- wherein there are at least two cooling fins on facing surfaces of adjacent heat pipes and wherein the at least two louvered cooling fins of one heat pipe are intermeshed with the at least two louvered cooling fins of the adjacent heat pipe so that the fins are parallel to each other.
5 more elements
A battery pack comprising:
- at least two battery cells;
- and
- at least two adjacent heat pipes positioned between the at least two battery cells wherein each heat pipe contains a working fluid;
- and
- at least two louvered cooling fins, wherein each of said louvered cooling fins further comprises a set of slanted louvers, adjacent to one end of the heat pipe body, each of the louvered cooling fins extending outward from a surface of the heat pipe body;
- wherein the at least two louvered cooling fins of one heat pipe are intermeshed with the at least two louvered cooling fins of the adjacent heat pipe so that the fins are parallel to each other.
3 more elements
Dependencies are inferred from the claim text.