Heat dissipation means for increasing power density in enclosed equipment

摘要

A thermally efficient electrical enclosure includes a busbar, a metallic heat sink, and an electrical insulator. The busbar is positioned entirely within the enclosure and electrically insulated from the enclosure. The metallic heat sink is attached to a wall of the enclosure. The electrical insulator physically contacts the busbar and is at least partially wrapped around at least two non-parallel surfaces of a portion of the metallic heat sink such that the metallic heat sink is electrically insulated from the busbar. The metallic heat sink is configured to transfer thermal energy or heat from the busbar to the enclosure such that the thermal energy is lost or transferred to the surrounding environment, which reduces the temperature of the busbar and the amount of copper needed for the busbar without reducing the rating of the enclosure.