Heat dissipation unit manufacturing method
A heat dissipation unit manufacturing method is disclosed. The heat dissipation unit includes a heat pipe and a base seat. The base seat has a first side and a second side. The second side is formed with a channel and multiple perforations in communication with the first and second sides. The heat pipe has a heat absorption section and a conduction section. The conduction section extends from the heat absorption section in a direction to at least one end of the heat pipe distal from the heat absorption section. Several parts of the heat pipe corresponding to the perforations are received in the perforations and flush with the first side of the base seat. The heat dissipation unit manufacturing method improves the shortcoming of the conventional heat dissipation component that the coplanar precision between the heat pipe and the protruding platform of the base seat is hard to control.
1. A heat dissipation unit manufacturing method, comprising steps of:
providing a base seat and a heat pipe;
forming a channel and multiple perforations on an upper face of the base seat;
placing the heat pipe into the channel and mechanically processing the upper face of the base seat to force the heat pipe into the channel and the perforations; and
mechanically processing the lower face of the base seat to press the parts of the heat pipe that extrude from the perforations back into the perforations to be flush with the lower face of the base seat.
2. The heat dissipation unit manufacturing method as claimed in claim 1 , wherein the multiple perforations are formed through the base seat at the channel near the center of the base seat.
3. The heat dissipation unit manufacturing method as claimed in claim 1 , wherein the mechanical processing is selected from a group consisting of pressing, rolling and forging.
4. The heat dissipation unit manufacturing method as claimed in claim 1 , further comprising a step of finely processing the protruding platform of the base seat by means of cutting so as to enhance the flatness of the surface of the protruding platform after the step of mechanically processing the lower face of the base seat to press the parts of the heat pipe that extrude from the perforations back into the perforations to be flush with the lower face of the base seat.
5. The heat dissipation unit manufacturing method as claimed in claim 1 , wherein the heat pipe is selected from a group consisting of flat-plate heat pipe, D-shaped heat pipe and circular heat pipe.