Patent ID: 7746640
Filing Date: 2010-06-29
Classification: F28D,G06F,H01L

Abstract:
1. A heat dissipation device for removing heat from a heat generating electronic device, the heat dissipation device comprising: a base for contacting with the electronic device; a first heat pipe thermally embedded in the base, the first heat pipe comprising a first transferring portion and two second transferring portions extending from two opposite free ends of the first transferring portion in opposite extension directions, the first heat pipe being S-shaped in profile; a U-shaped, second heat pipe thermally embedded in the base, the second heat pipe comprising a first transferring section and a second transferring section curved from an end of the first transferring section of the second heat pipe; a U-shaped, third heat pipe thermally embedded in the base, the third heat pipe having a first transferring section and a second transferring section curved from an end of the first transferring section of the third heat pipe; and a fin set thermally contacting the base for dissipating the heat in the base; wherein one of the second transferring portions of the first heat pipe is located between the first and second transferring sections of the second heat pipe and the other of the second transferring portions of the first heat pipe is located between the first and second transferring sections of the third heat pipe; wherein the second heat pipe has an orientation opposite from that of the third heat pipe, the second and third heat pipes being located at two opposite sides of the first heat pipe, respectively; wherein the first transferring section of the second heat pipe and the first transferring portion of the first heat pipe are located in a center portion of the base and the second transferring section of the second heat pipe and the second transferring portions of the first heat pipe are located away from the center portion of the base; and wherein the first transferring portion of the first heat pipe is located between the two first transferring sections of the second and third heat pipes.