Heat dissipation apparatus for expansion base

Abstract

A heat dissipation apparatus includes an expansion base, an air duct, a fan, a heat sink, and a portable device. A number of air inlet slots is defined in the expansion base. A first air inlet opening and a number of diagonal air outlet slots are defined in the air duct. A third air inlet opening and a third air outlet opening are defined in the portable device. The fan generates airflow through the portable device in such a manner that airflow flows from the expansion base outside is sucked into and blown out of the air duct via a first airflow passage. The portable device guides airflow in and out of the portable device via a second airflow passage.

What is claimed is: 
     
         1 . A heat dissipation apparatus, comprising:
 an expansion base comprising a base body, an air inlet slot defined at one side of the base body; a first inserting slot and a second inserting slot defined at a top of the base body;   an air duct inserted in the first inserting slot, the air duct comprising a duct body, a first air inlet opening defined at a bottom of the duct body, a plurality of air outlet slots defined diagonally across a top of the duct body;   a fan fixed in the duct body; and   a portable device configured to be inserted in the second inserting slot, a third air inlet opening and a third air outlet opening defined in the portable device, a first heat dissipation element and a second heat dissipation element mounted on the portable device, and a heat sink mounted on the first heat dissipation element and the second heat dissipation element; wherein a first airflow passage is defined between the air inlet slot, the fan, the first air inlet opening, the air duct, and the plurality of air outlet slots; the fan is adapted to generate airflow through the portable device so that airflow flows from the expansion base outside is sucked into and blown out of the air duct via the first airflow passage; a second airflow passage is defined between the third air inlet opening, the heat sink, and the third air outlet opening; the portable device is configured to guide airflow in and out of the portable device via the second airflow passage.   
     
     
         2 . The heat dissipation apparatus of  claim 1 , wherein the fan comprises a shell and a rotatable fan blade module; a second air inlet opening is defined at one side of the shell; and a second air outlet opening is defined at a top of the shell. 
     
     
         3 . The heat dissipation apparatus of  claim 2 , wherein the second air inlet opening allows air to flow in a first direction which is in line with a rotating axle of the fan blade module; and the second air outlet opening allows air to flow in a second direction which is substantially perpendicularly to the first direction. 
     
     
         4 . The heat dissipation apparatus of  claim 3 , wherein a length of the second air outlet opening is equal to a length of the plurality of air outlet slots. 
     
     
         5 . The heat dissipation apparatus of  claim 4 , wherein the portable device comprises a main body; the third air inlet opening is defined at one side of the main body; and the third air outlet opening is defined at a top of the main body. 
     
     
         6 . The heat dissipation apparatus of  claim 5 , wherein the air duct further comprises a first air inlet channel defined by the first air inlet opening and a first air outlet channel defined by the plurality of air outlet slots, the first air inlet channel being substantially parallel to the first air outlet channel; the portable device further comprises a second air inlet channel defined by the third air inlet opening and a second air outlet channel defined by the third air outlet opening, the second air inlet channel being substantially perpendicularly to the second air outlet channel. 
     
     
         7 . The heat dissipation apparatus of  claim 5 , wherein the first air inlet opening is communicated with the plurality of air outlet slots; and the third air inlet opening is communicated with the third air outlet opening. 
     
     
         8 . The heat dissipation apparatus of  claim 7 , wherein a length of the first inserting slot is less than a length of the second inserting slot; a length of the first inserting slot is equal to a length of the duct body; a width of the first inserting slot is equal to a thickness of the duct body; a length of the second inserting slot is equal to a length of the portable device; and a width of the second inserting slot is equal to a thickness of the portable device. 
     
     
         9 . A heat dissipation apparatus, comprising:
 an expansion base defining an air inlet slot at one side of the expansion base, a first inserting slot and a second inserting slot being defined at a top of the expansion base;   an air duct inserted in the first inserting slot, the air duct defining a first air inlet opening at a bottom of the air duct and a plurality of air outlet slots diagonally across a top of the air duct;   a fan fixed in the duct body, a second air inlet opening and a second air outlet opening being defined in the fan; and   a portable device configured to be inserted in the second inserting slot, a third air inlet opening and a third air outlet opening defined in the portable device, a first heat dissipation element and a second heat dissipation element mounted on the portable device, and a heat sink mounted on the first heat dissipation element and the second heat dissipation element; wherein a first airflow passage is defined between the air inlet slot, the second air inlet opening, the fan, the second air outlet opening, the first air inlet opening, the air duct, and the plurality of air outlet slots; the fan is configured to generate airflow through the portable device so that airflow flows from the expansion base outside is sucked into and blown out of the air duct via the first airflow passage; a second airflow passage is defined between the third air inlet opening, the heat sink, and the third air outlet opening; the portable device is configured to guide airflow in and out of the portable device via the second airflow passage.   
     
     
         10 . The heat dissipation apparatus of  claim 9 , wherein the fan comprises a shell and a rotatable fan blade module; the second air inlet opening is defined at one side of the shell; and the second air outlet opening is defined at a top of the shell. 
     
     
         11 . The heat dissipation apparatus of  claim 10 , wherein the second air inlet opening allows air to flow in a first direction which is in line with a rotating axle of the fan blade module; and the second air outlet opening allows air to flow in a second direction which is substantially perpendicularly to the first direction. 
     
     
         12 . The heat dissipation apparatus of  claim 11 , wherein a length of the second air outlet opening is equal to a length of the plurality of air outlet slots. 
     
     
         13 . The heat dissipation apparatus of  claim 12 , wherein the portable device comprises a main body; the third air inlet opening is defined at one side of the main body; and the third air outlet opening is defined at a top of the main body. 
     
     
         14 . The heat dissipation apparatus of  claim 13 , wherein the air duct further comprises a first air inlet channel defined by the first air inlet opening and a first air outlet channel defined by the plurality of air outlet slots, the first air inlet channel being substantially parallel to the first air outlet channel; the portable device further comprises a second air inlet channel defined by the third air inlet opening and a second air outlet channel defined by the third air outlet opening, the second air inlet channel being substantially perpendicularly to the second air outlet channel. 
     
     
         15 . The heat dissipation apparatus of  claim 13 , wherein the first air inlet opening is communicated with the plurality of air outlet slots; and the third air inlet opening is communicated with the third air outlet opening. 
     
     
         16 . The heat dissipation apparatus of  claim 15 , wherein a length of the first inserting slot is less than a length of the second inserting slot; a length of the first inserting slot is equal to a length of the duct body; a width of the first inserting slot is equal to a thickness of the duct body; a length of the second inserting slot is equal to a length of the portable device; and a width of the second inserting slot is equal to a thickness of the portable device.