Patent ID: 9007770
Filing Date: 2015-04-14
Classification: G06F,H05K

Abstract:
1. An electronic device, comprising: a housing; a heat source, located inside the housing; and a heat dissipation device, disposed inside the housing, the heat dissipation device being in thermal contact with the heat source, the heat dissipation device comprising a casing and heat dissipation material disposed in the casing, the heat dissipation material comprising 15 to 30 percent volume of multiple copper materials, 50 to 85 percent volume of a phase change material, and 15 to 20 percent volume of air, wherein the phase change material comprises an alkane; wherein the casing has a surface being in thermal contact with the heat source, a central area and an outer ring area are defined on the surface, the outer ring area surrounds the central area, a geometric midpoint of the central area and a geometric midpoint of the surface are overlapped with each other, the area of the central area is 10% to 50% of the area of the surface, the heat source is located in the outer ring area, and the heat dissipation device absorbs heat from the heat source through thermal conduction.