Method for the production of a heat sink composed of metal
AssigneeErwin Quarder Systemtechnik GmbH
InventorsGeorg Siewert, Alexander Heitbrink
Life of this patent
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Abstract
A method for the production of a heat sink composed of metal, preferably composed of a solid metal block, in particular composed of aluminium. The heat sink has a plurality of fluid lines for conducting cooling fluid which are separated from one another by heat sink ribs arranged between them, which are arranged next to one another and which run in a parallel manner. It is characterized in that the fluid lines are formed by grooves which are milled into the metal.
Claims22
A method for introducing a plurality of adjacent grooves (24) into a workpiece composed of metal during the course of the production of a heat sink composed of metal, the heat sink having a plurality of fluid lines (32) for conducting cooling fluid which are separated by heat sink ribs (26), which are arranged next to one another and which run in a parallel manner, comprising milling the workpiece with a milling head (23) to simultaneously mill a number of grooves (24) into the workpiece to form the fluid lines (32),
- wherein the milling head (23) rotates about an axis of rotation,
- wherein the milling head (23) has milling teeth (31) in each of a plurality of cross-axial milling planes which are arranged next to one another,
- wherein the grooves (24) are spaced apart from each other a predetermined distance,
- wherein the milling teeth (31) of adjacent milling planes are spaced apart from one another in an axial direction at the predetermined distance between adjacent grooves (24),
- wherein the grooves (24) are milled to have a depth of between 1 mm and 20 mm and a width of between 0.1 mm and 2 mm,
- wherein, for all of the grooves (24) of the heat sink which are arranged next to one another, in each case two adjacent grooves (24) are separated by a heat sink rib (26) which is arranged between them, and
- wherein the heat sink ribs (26) arranged between the grooves (24) each have a width of between 0.2 mm and 0.8 mm.
A method for introducing a plurality of adjacent grooves (24) into a workpiece composed of metal during the course of the production of a heat sink composed of metal, the heat sink having a plurality of fluid lines (32) for conducting cooling fluid which are separated by heat sink ribs (26), which are arranged next to one another and which run in a parallel manner, comprising milling the workpiece with a milling head (23) to simultaneously mill a number of grooves (24) into the workpiece to form the fluid lines (32),
- wherein the milling head (23) rotates about an axis of rotation,
- wherein the milling head (23) has milling teeth (31) in each of a plurality of cross-axial milling planes which are arranged next to one another,
- wherein the grooves (24) are spaced apart from each other a predetermined distance,
- wherein the milling teeth (31) of adjacent milling planes are spaced apart from one another in an axial direction at the predetermined distance between adjacent grooves (24),
- wherein the grooves (24) are milled to have a depth of between 1 mm and 20 mm and a width of between 0.1 mm and 2 mm, whereby the heat sink ribs (26) arranged between the grooves (24) each have a width of between 0.1 mm and 2 mm,
- wherein, for all of the grooves (24) of the heat sink which are arranged next to one another, in each case two adjacent grooves (24) are separated by a heat sink rib (26) which is arranged between them, and
- wherein the number of heat sink ribs (26) arranged next to one another per cm of heat sink width is between 6.25 and 25.
Dependencies are inferred from the claim text.