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Ultrathin heat dissipation structure

  • US 10,448,540 B2
  • Filed: 06/24/2016
  • Issued: 10/15/2019
  • Est. Priority Date: 05/09/2016
  • Status: Active Grant
First Claim
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1. A heat dissipation structure comprising:

  • a copper clad sheet comprising a plurality of containing grooves and a plurality of ribs round each containing groove, each of the plurality of containing grooves formed by stamping, the copper clad sheet comprising an insulation layer and a copper clad layer attached on the insulation layer, wherein a surface of the copper clad layer facing away from the insulation layer forms an inner surface of the plurality of containing grooves, the insulation layer follows a contour of the copper clad layer and has a same shape as that of the copper clad layer;

    a plurality of bond blocks arranged on the ribs;

    a cover being fixed on the copper clad sheet with the containing groove using the bond blocks, the cover sealing the plurality of containing grooves to form a plurality of a sealed cavities; and

    a phase-change material contained in the sealed cavity and configured to absorb and transfer out heat generated by components.

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