Heat sink clip device

Abstract

A heat sink clip device, configured to secure a heat sink to a heat generating unit, the heat sink clip comprises a thermal conductive board and a plurality of locking members. The thermal conductive board is attached to the heat generating unit. The thermal conductive board may include a plurality of connecting apertures. Each connecting aperture may include a bigger diameter portion and a smaller diameter portion connected with the bigger diameter portion. A plurality of locking members may be engaged with the corresponding connecting aperture. Each locking members may include a threaded member and an elastic unit sheathed on the threaded member. The threaded member may include a bar portion, a head portion and a blocking ring. The head portion and the blocking ring are respectively on both sides of the bar portion. The diameter of the bar portion may be a little bit smaller than the size of the smaller diameter portion. The outside diameter of the blocking ring may be a little bit smaller than the size of the bigger diameter portion. The inside diameter of the elastic unit may be a little bit bigger than the outside diameter of the blocking ring. The bar portion and the blocking ring may go through the bigger diameter portion and then may be secured to the smaller diameter portion. The elastic unit may be suppressed between the threaded member head and the thermal conductive board. This creates a heat sink clip device.

1 . An heat sink clip device, configured to secure a heat sink to a heat generating unit, the heat sink clip device comprising:
 a thermal conductive board, attached to the heat generating unit, the thermal conductive board including a plurality of connecting apertures, each connecting aperture including a bigger diameter portion and a smaller diameter portion connected with the bigger diameter portion;   a plurality of locking members, respectively engaged with the connecting apertures, each locking member including a threaded member and an elastic unit sheathed on the threaded member, the threaded member including a bar portion, a head portion and a blocking ring, the head portion and the blocking ring being respectively attached to on both sides of the bar portion, the diameter of the bar portion being a little bit smaller than the size of the smaller diameter portion, the outside diameter of the blocking ring being a little bit smaller than the size of the bigger diameter portion, the inside diameter of the elastic unit being a little bit bigger than the outside diameter of the blocking ring, the bar portion and the blocking ring going through the bigger diameter portion and then being secured to the smaller diameter portion, the elastic unit being suppressed between the head portion and the thermal conductive board.   
     
     
         2 . The heat sink clip device according to  claim 1 , wherein the connecting aperture is formed in the thermal conductive board. 
     
     
         3 . The heat sink clip device according to  claim 1 , wherein the connecting aperture is formed on the periphery of the thermal conductive board. 
     
     
         4 . The heat sink clip device according to  claim 3 , wherein the bigger diameter portion is a long trough, the smaller diameter portion is an arc aperture, the long trough is formed on the periphery of the thermal conductive board and has an opening, extending to be connected with the arc aperture. 
     
     
         5 . The heat sink clip device according to  claim 2 , wherein the thermal conductive board extends to form a plurality of sleeves, each sleeve includes a surrounding piece and a board piece attached to the surrounding piece, and the board piece includes the connecting aperture. 
     
     
         6 . The heat sink clip device according to  claim 3 , wherein the thermal conductive board extends to form a plurality of sleeves, each sleeve includes a surrounding piece and a board attached to the surrounding piece, and the board piece includes the connecting aperture. 
     
     
         7 . The heat sink clip device according to  claim 1 , wherein the bigger diameter portion and the smaller diameter portion are respectively arc apertures to form a gourd shape of the connecting aperture. 
     
     
         8 . The heat sink clip device according to  claim 1 , wherein the threaded member is a screw and the threaded member head is a screw head. 
     
     
         9 . The heat sink clip device according to  claim 1 , wherein the size of the smaller diameter portion is bigger than the diameter of the bar portion for 0.2-0.3 mm. 
     
     
         10 . The heat sink clip device according to  claim 1 , wherein a neck portion is included between the bigger diameter portion and the smaller diameter portion, and the width of the neck portion is a little bit smaller than the diameter of the bar portion. 
     
     
         11 . The heat sink clip device according to  claim 10 , wherein the width of the neck portion is smaller than the bar portion for about 0.1 mm. 
     
     
         12 . The heat sink clip device according to  claim 1 , wherein the heat generating unit connects to an electronic board, the electronic board respectively includes a plurality of keyholes, and the threaded members respectively are secured to the keyholes. 
     
     
         13 . The heat sink clip device according to  claim 12 , wherein the keyhole is a threaded aperture, the threaded member further includes a threaded portion, the threaded portion is engaged with the thread hole, and the blocking ring is provided on the electronic board. 
     
     
         14 . The heat sink clip device according to  claim 1 , wherein the elastic unit is a spring. 
     
     
         15 . The heat sink clip device according to  claim 1 , wherein the elastic unit is an elastic piece, and the elastic unit is provided with an opening configured to be engaged with the threaded member. 
     
     
         16 . The heat sink clip device according to  claim 15 , wherein the elastic piece connects the two threaded members, and the adjacent two threaded members are engaged with the same elastic piece.