Heat spreader with vapor chamber defined therein
AssigneeFoxconn Technology Co., Ltd.
InventorsCHANG-SHEN CHANG, JUEI-KHAI LIU, CHAO-HAO WANG, HSIEN-SHENG PEI
Life of this patent
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Abstract
A heat spreader includes a bottom wall (12) and a cover (14) hermetically connected to the bottom wall. Cooperatively the bottom wall and the cover define a space (11) therebetween for receiving a working fluid therein. A wick structure (15) is received in the space and thermally interconnects the bottom wall and the cover. The wick structure includes at least a carbon nanotube array, which can conduct heat from the bottom wall to the cover and draw condensed liquid of the working fluid from the cover toward the bottom wall.
Claims19
A heat spreader, comprising:
- a bottom wall;
- a cover hermetically connected to the bottom wall to thereby form a sealed space which contains working liquid therein;
- and
- a wick structure received in the space and thermally interconnecting the bottom wall and the cover, the wick structure comprising at least a carbon nanotube array.
A cooling device, comprising:
- a heat spreader for thermally attaching to a heat-generating device, comprising:
- a bottom wall;
- a cover hermetically connected to the bottom wall to thereby form a sealed space for containing working liquid therein;
- and
- a wick structure received in the space and thermally interconnecting the bottom wall and the cover, the wick structure comprising at least a carbon nanotube array;
- and
- a heat sink being thermally mounted on the heat spreader.
A cooling device comprising:
- a bottom wall having a bottom surface thermally connecting with a heat-generating electronic component;
- a cover hermetically connected to the bottom wall and defining an inner space with the bottom wall;
- liquid received in the inner space, wherein the liquid evaporates into vapor when the bottom wall receives heat from the heat-generating electronic component;
- and
- carbon nanotubes received in the inner space, thermally interconnecting the bottom wall and the cover and functioning as first wick structure drawing condensed liquid formed by the vapor from the cover toward the bottom wall.
Dependencies are inferred from the claim text.