Heat dissipation device

Abstract

A heat dissipation device includes a chamber, a tube, a wick structure and a plurality of fins arranged around the tube. The chamber includes a base and a cover hermetically connected to the base. An evaporation room is defined between the base and the cover of the chamber. The tube extends upwardly from the cover of the chamber, and defines a condensation room communicating with the evaporation room. The wick structure is immerged with working fluid, and includes a main portion disposed in the evaporation room and a projection extending from the main portion into the condensation room.

1 . A heat dissipation device, comprising:
 a heat transfer member comprising a hollow chamber and at least a hollow tube extending from and communicating the chamber, the at least one tube being substantially perpendicular to the chamber;   a wick structure immerged with working fluid comprising a first section received in the chamber and at least one second section extending from the first section into the at least one tube, a channel being defined between the at least one tube and the wick structure for vapor flowing in the at least one tube; and   a heat dissipation member comprising a plurality of fins arranged around the at least one tube.   
     
     
         2 . The heat dissipation device of  claim 1 , wherein the chamber is flat, the at least one tube extending upwardly from a middle of the chamber, a cross section of the at least one tube having a substantially elongated rectangular shape with two arc ends. 
     
     
         3 . The heat dissipation device of  claim 2 , wherein the at least one tube comprises two flat plates, two arced plates respectively formed at lateral sides of the flat plates, and a top plate coupling to top sides of the flat plates and the arced plates, the at least one second section of the wick structure abutting the flat plates and spaced from the arced plates of the at least one tube, the channel being defined between the arced plates of the at least one tube and the at least one second section of the wick structure. 
     
     
         4 . The heat dissipation device of  claim 3 , wherein the at least one second section of the wick structure is spaced from the top plate of the at least one tube. 
     
     
         5 . The heat dissipation device of  claim 1 , wherein the chamber comprises a base and a cover parallel to and spaced from the base, the first section of the wick structure attaching to the base and spaced from the cover. 
     
     
         6 . The heat dissipation device of  claim 5 , wherein at least one aperture is defined in the cover and has a substantially elongated rectangular shape with two arc ends, a wall extending upwardly from a border of the at least one aperture, the at least one tube having a bottom end inserted into and connected to the wall hermetically. 
     
     
         7 . The heat dissipation device of  claim 5 , wherein a plurality of arms extend outwards from the base and each define a through hole for assembly the heat dissipation device. 
     
     
         8 . The heat dissipation device of  claim 1 , wherein the at least one tube comprises a pair of tubes, the pair of tubes are aslant to each other. 
     
     
         9 . A heat dissipation device, comprising:
 a chamber comprising a base and a cover hermetically connected to the base, an evaporation room being defined between the base and the cover of the chamber;   a tube extending upwardly from the cover of the chamber, and defining a condensation room therein communicating the evaporation room of the chamber;   a wick structure immerged with working fluid comprising a main portion disposed in the evaporation room and a projection extending from the main portion into the condensation room; and   a plurality of fins arranged around the tube.   
     
     
         10 . The heat dissipation device of  claim 9 , wherein the tube is flat, comprising two flat plates, two arced plates respectively connecting lateral sides of the flat plates, and a top plate coupling to top sides of the flat plates and the arced plates, the projection of the wick structure abutting the flat plates and spaced from the arced plates, a channel being defined between the arced plates of the tube and the projection of the wick structure. 
     
     
         11 . The heat dissipation device of  claim 10 , wherein a top end of the projection is lower than the top plate of the tube. 
     
     
         12 . The heat dissipation device of  claim 9 , wherein the wick structure is a screen mesh. 
     
     
         13 . The heat dissipation device of  claim 9 , wherein an aperture is defined in the cover and has a substantially elongated rectangular shape with two arc ends, a wall extending upwardly from a border of the aperture, a bottom end of the tube inserted into and connected to the wall hermetically. 
     
     
         14 . The heat dissipation device of  claim 9 , wherein a plurality of arms extend outwards from the base and each define a through hole.