Patent ID: 8756810
Filing Date: 2014-06-24
Classification: F28D,F28F,Y10T

Abstract:
1. A method of manufacturing a board-shaped heat dissipating device, comprising the following steps: forming at least one recess having a bottom face on a plane face of a board body; forming at least one groove on said bottom face of the recess, and applying a heat-conducting bonding medium in the at least one groove; placing in one-to-one correspondence at least one whole heat pipe having a uniform, straight length in the at least one groove so that it is fully embedded along the entire length, forcing the at least one heat pipe against the board body, and welding the at least one heat pipe to the at least one groove; placing the board body with the at least one heat pipe welded thereto between an upper mold and a lower mold of a pressing machine to firmly force and attach a bottom side of the at least one heat pipe into the at least one groove and to flatten a top side of the at least one heat pipe along the length flush with an open side of said groove to provide a contact face, fitting a first side of a heat conducting element in the at least one recess to bear on contact face of the at least one heat pipe, and welding the heat conducting element to the at least one heat pipe and the board body, so that the heat conducting element and the at least one heat pipe are combined into one structure; and conducting a cut operation to remove portions on a second side of the heat conducting element that are higher than the plane face of the board body, so that the second side of the heat conducting element is flush with the plane face of the board body providing a flat face to contact a heat source.