Patent ID: 8339786
Filing Date: 2012-12-25
Classification: H01L

Abstract:
1. A heat dissipation device for a portable electronic device, the heat dissipation device comprising: a heat pipe comprising an evaporator section and a condenser section, the evaporator section being configured for thermally attaching to a heat source of the portable electronic device; and a heat dissipating member comprising a sheath, and a porous heat dissipating layer and a working fluid contained in the sheath, the porous heat dissipating layer defining a plurality of gaps therein, the working fluid filled in the gaps, the condenser section of the heat pipe being received in the porous heat dissipating layer and thermally contacting the porous heat dissipating layer; wherein the porous heat dissipating layer and the working fluid surround the condenser section of the heat pipe; wherein the sheath is hollow and cylindrical; and wherein the sheath defines a receiving space therein, the porous heat dissipating layer and the working fluid are received in the receiving space, the sheath further defines an entrance, a diameter of the entrance is equal to that of an outer diameter of the condenser section of the heat pipe, and the condenser section is received in the receiving space through the entrance and seals the entrance.