Patent ID: 7990717
Filing Date: 2011-08-02
Classification: F28F,H01L,Y10T

Abstract:
1. An electronic device, comprising: a shell; an electronic component received in the shell; and a heat sink arranged between the electronic component and the shell, the heat sink comprising a first heat spreader attaching to the electronic component, a second heat spreader spaced from the first heat spreader, and a plurality of fins between the first and the second heat spreaders, each of the fins comprising a pair of contacting portions, a pair of bending portions and a connecting portion each of which is flat, the contacting portions respectively connected to the first and second heat spreaders, the bending portions respectively extending from the contacting portions towards each other, each bending portion forming a rear end adjacent to the other bending portion, the connecting portion interconnecting the rear ends of the bending portions at opposite ends thereof; wherein the contacting portions are parallel to each other, each bending portion extends substantially perpendicularly from one corresponding contacting portion, and the connecting portion is aslant to the contacting portions and the bending portions.