Cooling device for cooling an energy accumulator and/or electronic assembly and method of manufacturing the same
AssigneeLiebherr-Components Biberach GmbH
InventorMarkus EICHLER
Life of this patent
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Abstract
The invention relates to a cooling device for cooling an energy accumulator and/or electronic assembly, comprising a preferably plate-shaped heat sink in whose interior at least one coolant channel is formed, wherein the heat sink comprises two sheet metal blanks cohesively joined onto each other surface to surface, wherein one sheet metal blank has a channel-shaped bulge that bulges out of the joining plane of the two sheet metal blanks with about the same wall thickness, is connected to the other sheet metal blank only at its edge, and forms the coolant channel.
Claims29
A cooling device for cooling an energy accumulator and/or electronic assembly, the cooling device comprising:
- a plate-shaped heat sink in whose interior at least one coolant channel is formed, wherein the plate-shaped heat sink comprises a first sheet metal blank and a second sheet metal blank, wherein the first sheet metal blank and the second sheet metal blank are adhesively joined to each other surface to surface, wherein the first sheet metal blank has a channel-shaped bulge that bulges out of the joining plane between the first sheet metal blank and the second sheet metal blank with about the same wall thickness, is connected to the second sheet metal blank only at its edge, and forms the at least one coolant channel.
A method of manufacturing a cooling device for cooling an energy accumulator and/or electronic assembly comprising at least one plate-shaped heat sink having at least one coolant channel, wherein the at least one plate-shaped heat sink comprises two sheet metal blanks that are cohesively joined to each other surface to surface by roll bonding, wherein before the two sheet metal blanks are cohesively joined to each other surface to surface by roll bonding, a release agent is provided on at least one of the two sheet metal blanks corresponding to the course of the at least one coolant channel, and wherein after the two sheet metal blanks are cohesively joined to each other surface to surface by roll bonding, at least one of the two sheet metal blanks is bulged by shaping in the region of the release agent in order to form the at least one coolant channel.
Dependencies are inferred from the claim text.