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US 11,886,258 B2Granted
Hybrid heat sink for electronics cooling
AssigneeBaidu USA LLC
InventorTianyi Gao
Life of this patent
Estimating the term…
Abstract
Embodiments are disclosed of a hybrid heat sink. The hybrid heat sink includes a dry base and a wet base spaced apart from the dry base. The wet base including a fluid inlet and a fluid outlet. A plurality of air channels is formed between the dry base and the wet base; and a plurality of liquid channels are formed between the dry base and the wet base. The plurality of liquid channels are coupled to the fluid inlet and the fluid outlet, and the plurality of liquid channels are thermally coupled to the plurality of air channels. Other embodiments are disclosed and claimed.
Claims13
A hybrid heat sink, comprising:
- a dry base adapted to be thermally coupled to a heat-generating electronic component, the dry base having a plurality of dry fins thermally coupled thereto and projecting therefrom;
- a wet base spaced apart from the dry base, the wet base including a fluid inlet, a fluid outlet, and a plurality of wet fins thermally coupled to the wet base and projecting therefrom;
- a plurality of air channels formed between the dry base and the wet base by the plurality of wet fins and the plurality of dry fins, wherein each wet fin abuts, but is separate from, a corresponding dry fin;
- and
- a plurality of liquid channels through which a working fluid can circulate, the plurality of liquid channels being formed in the wet base and the plurality of wet fins and being fluidly coupled to the fluid inlet and the fluid outlet, and the plurality of liquid channels being separate from, but thermally coupled to, the plurality of air channels, wherein each dry fin is configured to transfer heat to the working fluid flowing through the plurality of liquid channels in the corresponding wet fin.
2 more elements
A system, comprising:
- a heat-generating electronic component;
- a hybrid heat sink thermally coupled to the heat-generating electronic component, the hybrid heat sink comprising:
- a dry base having a plurality of dry fins thermally coupled thereto and projecting therefrom;
- a wet base spaced apart from the dry base, the wet base including a fluid inlet, a fluid outlet, and a plurality of wet fins thermally coupled to the wet base and projecting therefrom;
- a plurality of air channels formed between the dry base and the wet base by the plurality of wet fins and the plurality of dry fins, wherein each wet fin abuts, but is separate from, a corresponding dry fin;
- a plurality of liquid channels through which a working fluid can circulate, the plurality of liquid channels being formed in the wet base and the plurality of wet fins and being fluidly coupled to the fluid inlet and the fluid outlet, and the plurality of liquid channels being separate from, but thermally coupled to, the plurality of air channels, wherein each dry fin is configured to transfer heat to the working fluid flowing through the plurality of liquid channels in the corresponding wet fin;
- and
- a heat exchanger fluidly coupled to the fluid inlet and the fluid outlet to circulate the working fluid through the plurality of liquid channels.
5 more elements
Dependencies are inferred from the claim text.