The invention discloses a heat dissipation structure and a manufacturing method. The heat dissipation structure comprises a base and a plurality of heat pipes. An
injection port and a plurality of receiving grooves are respectively arranged on the upper and lower sides of the base. The
injection port is arranged across the upper part of the receiving grooves to intersect and communicate with the receiving grooves. A solder layer is arranged between the
heat pipe and the receiving groove and connected to the two. When manufacturing, the
heat pipe is placed in the receiving groove of the base, and a mechanical
processing is first performed to make one side of the
heat pipe be pressed (rolled) flat and flush with the lower side of the base. Then, the solder is injected through the
injection port so that the solder completely fills the gap between the heat
pipe and the receiving groove. Then, the heat
pipe and the base are placed together in the
heating furnace for heating. After being taken out and cooled, the solder forms a solder layer that combines and fixes the base and the heat
pipe and fills the gap between the two, thereby ensuring that the base and the heat pipe can be tightly fitted to avoid the occurrence of
thermal resistance.