| CPC H05K 7/20336 (2013.01) [F28D 15/0233 (2013.01); F28D 15/0275 (2013.01); H05K 7/20327 (2013.01); H05K 7/20409 (2013.01); F28D 2015/0216 (2013.01)] | 7 Claims |
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1. A thermal module comprising:
a base seat;
at least two U-shaped heat pipes, each of the at least two U-shaped heat pipes having a heat absorption end and a heat dissipation end extending from the heat absorption end, the heat absorption ends of the at least two U-shaped heat pipes being disposed on the base seat, the heat dissipation ends of the at least two U-shaped heat pipes extending parallel with each other, one of the heat dissipation ends being vertically positioned above the base seat at a first height relative to the base seat and the other one of the heat dissipation ends being vertically positioned above the base seat at a second height relative to the base seat, the first height being unequal to the second height, wherein the heat dissipation ends of the at least two U-shaped heat pipes are misaligned from each other; and
multiple heat dissipation units, each one of the multiple heat dissipation units being suspended, and connected with a separate one of the heat dissipation ends of the at least two U-shaped heat pipes such that each heat pipe of the at least two U-shaped heat pipes penetrates a respective heat dissipation unit of the multiple heat dissipation units, a first one of the multiple heat dissipation units being disposed at the first height above and at least partially vertically overlapping the base seat, and a second one of the multiple heat dissipation units being disposed at the second height above and at least partially vertically overlapping the base seat, wherein a first vertical gap spaces the first heat dissipation unit and the base seat and a second vertical gap spaces the first heat dissipation unit and the second heat dissipation unit, so that the multiple heat dissipation units are not connected to each other, and by means of the first vertical gap and the second vertical gap, external airflow can pass through the multiple heat dissipation units for dissipating heat and preventing the airflow from being interrupted, wherein each heat dissipation unit has multiple radiating fins, each two adjacent radiating fins defining therebetween an airflow passage, the airflow passages of the multiple radiating fins on the heat dissipation ends of the at least two U-shaped heat pipes having different widths from each other.
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