| 摘要 |
An electronic device includes a casing, an electronic component accommodated in the casing; and a composite heat conductive layer between the casing and the electronic component. The composite heat conductive layer includes a graphite layer and a thermal pad layer between the electronic component and the graphite layer. The thermal pad layer is attached to the electronic component. The graphite layer is attached to an inner surface of the casing. The graphite layer is located between the casing and the thermal pad layer. Heat conductive efficiency of the graphite layer along a horizontal spreading direction thereof exceeds that along a vertical thickness direction thereof. A surface area of the graphite layer is not less than that of the electronic component. Heat generated by the electronic component is evenly transferred and is spread to the casing via the graphite layer of the composite heat conductive layer. |
