Abstract: In a method of manufacturing a power module unit, cooling fins are positioned in recesses of a frame, in particular a metal frame. A first metallic material is applied to the cooling fins and the frame by a thermal spraying process, causing the applied first metallic material to produce a material bond between the cooling fins and the frame.

Abstract: A support for at least one electrical component includes a heat sink having a heat sink surface and two opposing lateral walls protruding from the heat sink surface. The heat sink includes a base body made of aluminum and a copper layer as a heat spreading layer which forms the heat sink surface. The copper layer is produced together with the base body through continuous casting, or with the copper layer being applied additively through cold gas spraying to a surface of the base body. Two spaced-apart sealing blocks lie on the heat sink surface, with each of the two sealing blocks extending between the two lateral walls and contacting the two lateral walls. A support structure is arranged on the heat sink surface between the two sealing blocks.

Abstract: In a method of manufacturing a power module unit, cooling fins are positioned in recesses of a frame, in particular a metal frame. A first metallic material is applied to the cooling fins and the frame by a thermal spraying process, causing the applied first metallic material to produce a material bond between the cooling fins and the frame.

Abstract: A support for at least one electrical component includes a heat sink having a heat sink surface and two opposing lateral walls protruding from the heat sink surface. The heat sink includes a base body made of aluminum and a copper layer as a heat spreading layer which forms the heat sink surface. The copper layer is produced together with the base body through continuous casting, or with the copper layer being applied additively through cold gas spraying to a surface of the base body. Two spaced-apart sealing blocks lie on the heat sink surface, with each of the two sealing blocks extending between the two lateral walls and contacting the two lateral walls. A support structure is arranged on the heat sink surface between the two sealing blocks.

Abstract: A power module unit, in particular for a frequency converter, includes a base plate having a first side provided with a recess and a second side, a cooling fin fastened in the recess of the base plate at least in one region by a positive fit, a material fit, and/or a non-positive fit, and a substrate provided for a power semiconductor and disposed on the second side of the base plate.