Patent ID: 11950389
Assignee: nan
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC H  E  F | IPC E  F  G  H

Claim 0:
1. A subsea variable speed drive apparatus comprising:
a pressure resistant container comprising a curved wall section having a curved internal surface; and
a variable speed drive comprising at least one power electronics module arranged inside the container and held at a predetermined atmospheric pressure;
wherein the at least one power electronics module is mounted on a heatsink mounted on the internal surface, the heatsink comprising a curved surface contacting the internal surface and having a radius of curvature corresponding to a radius of curvature of the internal surface, the heatsink being fixedly attached to the internal surface so as to create a contact pressure between the heatsink and the internal surface, thereby providing efficient heat transfer from the heatsink to the container.