Heat dissipation device

Abstract

An exemplary heat dissipation device includes a heat-absorbing plate, a fin unit, a heat pipe connected to the heat-absorbing plate and the fin unit, and a clip spanning over the heat-absorbing plate and resting on the heat pipe. A fastening tab and a positioning tab are formed on the heat-absorbing plate. A fastening hole and a positioning hole are defined in the clip respectively corresponding to the fastening and positioning tabs. The fastening tab is engaged in the fastening hole. The positioning tab is received in the positioning hole.

1 . A heat dissipation device comprising:
 a heat-absorbing plate with a fastening tab and a positioning tab formed thereon;   a fin unit;   a heat pipe with one end connected to the heat-absorbing plate, and the other end connected to the fin unit; and   a clip spanning over the heat-absorbing plate and resting on the heat pipe, the clip defining a fastening hole in which the fastening tab is engaged, and a positioning hole in which the positioning tab is received.   
     
     
         2 . The heat dissipation device of  claim 1 , wherein the fastening tab has a T shape and is perpendicular to the positioning tab, and the fastening hole and the positioning hole are aligned along a long axis of the clip. 
     
     
         3 . The heat dissipation device of  claim 2 , wherein the fastening tab and the positioning tab are both oriented at oblique angles with respect to the long axis of the clip. 
     
     
         4 . The heat dissipation device of  claim 2 , wherein a middle portion of the fastening hole is broader than two end portions thereof as measured along directions transverse to the long axis of the clip, and a middle portion of the positioning hole is broader than two end portions thereof as measured along directions transverse to the long axis of the clip. 
     
     
         5 . The heat dissipation device of  claim 1 , wherein the fastening tab and the positioning tab extend upwardly from two diagonally opposite corners of the heat-absorbing plate. 
     
     
         6 . The heat dissipation device of  claim 1 , wherein the clip comprises a bulge portion resting on the heat pipe and two shoulders extending from two ends of the bulge portion respectively, the fastening hole and the positioning hole being respectively defined in the two shoulders. 
     
     
         7 . The heat dissipation device of  claim 6 , further comprising another heat pipe with one end connected to the fin unit, the another heat pipe resting on the shoulder of the clip that has the positioning hole. 
     
     
         8 . The heat dissipation device as claimed in  claim 7 , further comprising another heat-absorbing plate, wherein the other end of the another heat pipe is connected to the another heat-absorbing plate, and a middle section of the another heat pipe rests on the shoulder of the clip that has the positioning hole. 
     
     
         9 . A heat dissipation device comprising:
 a first heat-absorbing plate with a fastening tab and a positioning tab formed thereon;   a second heat-absorbing plate;   a fin unit;   a first heat pipe with one end connected to the first heat-absorbing plate, and the other end connected to the fin unit;   a clip spanning over the first heat-absorbing plate and resting on the first heat pipe, the clip defining a fastening hole in which the fastening tab is engaged, and a positioning hole in which the positioning tab is received; and   a second heat pipe with one end connected to the second heat-absorbing plate, the other end connected to the fin unit, and a middle section resting on the clip.   
     
     
         10 . The heat dissipation device of  claim 9 , wherein the clip comprises a bulge portion resting on the first heat pipe and two shoulders extending from two ends of the bulge portion respectively, the fastening hole and the positioning hole being respectively defined in the two shoulders. 
     
     
         11 . The heat dissipation device of  claim 10 , wherein the middle section of the second heat pipe rests on the shoulder of the clip that has the positioning hole. 
     
     
         12 . The heat dissipation device of  claim 9 , wherein the fastening tab has a T shape with a top end thereof larger than a bottom end thereof, and is perpendicular to the positioning tab. 
     
     
         13 . The heat dissipation device of  claim 12 , wherein the fastening hole and the positioning hole are aligned along a long axis of the clip. 
     
     
         14 . The heat dissipation device of  claim 13 , wherein a middle portion of the fastening hole is broader than two end portions thereof as measured along directions transverse to the long axis of the clip, and a middle portion of the positioning hole is broader than two end portions thereof as measured along directions transverse to the long axis of the clip.