Thermal module

Abstract

A thermal module includes a heat radiating unit, a heat transfer unit, and at least one cross-flow fan. The heat radiating unit has an air inlet and an air outlet that communicate with each other. The heat transfer unit has a heat absorbing section attached to a heat source and a heat dissipating section extended from the heat absorbing section to connect to the heat radiating unit. The cross-flow fan is arranged opposite to the heat radiating unit with an air-out side of the cross-flow fan located adjoining to the air inlet of the heat radiating unit. With the above arrangements, the thermal module occupies a largely reduced area while providing largely upgraded heat dissipation effect.

What is claimed is: 
     
         1 . A thermal module, comprising:
 a heat radiating unit having an air inlet and an air outlet communicating with the air inlet;   a heat transfer unit having a heat absorbing section and a heat dissipating section; the heat absorbing section being attached to a heat source, and the heat dissipating section being faced toward and connected to the heat radiating unit; and   at least one cross-flow fan being arranged opposite to the heat radiating unit with one side of the cross-flow fan located adjoining to the air inlet of the heat radiating unit.   
     
     
         2 . The thermal module as claimed in  claim 1 , wherein the heat absorbing section of the heat transfer unit is attached to one side of a seat, and the seat has another opposite side in contact with the heat source, such that heat generated by the heat source is transferred to the heat radiating unit via the seat and the heat transfer unit. 
     
     
         3 . The thermal module as claimed in  claim 1 , wherein the heat radiating unit is selected from the group consisting of a radiating fin assembly, a heat sink, and any other element capable of radiating heat therefrom. 
     
     
         4 . The thermal module as claimed in  claim 1 , wherein the heat transfer unit is selected from the group consisting of a heat pipe, a heat spreader, a vapor chamber, and any other element capable of transferring heat. 
     
     
         5 . The thermal module as claimed in  claim 1 , wherein the heat radiating unit includes a plurality of radiating fins, and a flow guiding passage is defined between any two adjacent ones of the radiating fins; and the flow guiding passages communicating with the air inlet and the air outlet. 
     
     
         6 . The thermal module as claimed in  claim 1 , wherein the cross-flow fan includes a housing, a blade assembly, and a motor; the housing having an air-in side and an air-out side communicating with the air-in side; the air-out side being located adjoining to the air inlet of the heat radiating unit; the air-out side and the air-in side together defining a receiving space therebetween for receiving the blade assembly therein; and the motor being arranged to an end of the housing to connect to the blade assembly for driving the latter to rotate. 
     
     
         7 . The thermal module as claimed in  claim 6 , wherein the blade assembly includes a plurality of blades and a plurality of annular rims; the blades being provided between any two adjacent ones of the annular rims, and being arranged transverse to and along a circumference of the annular rims.