Patent ID: 11895810
Assignee: ABB SCHWEIZ AG
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A power electronic device comprising:
a power electronic assembly including a power electronic module having multiple power electronic components and a cooling element, wherein the cooling element is attached to a surface of the power electronic module and is arranged to transfer heat from the power electronic assembly to a cooling medium, wherein the assembly comprises multiple vapour chambers arranged to transfer the heat generated by the multiple power electronic components, wherein at least one vapour chamber of the multiple vapour chambers is arranged to transfer heat to another vapour chamber of the multiple vapour chambers;
wherein the at least one of the multiple vapour chambers is arranged in the power electronic module and at least one other of the multiple vapour chambers is arranged in the cooling element;
wherein the power electronic module comprises a substrate having an upper surface and a lower surface, wherein the multiple power electronic components are attached to the upper surface, and wherein at least one of the multiple vapour chambers is attached to the lower surface of the substrate.