Heat sink for contactor in power distribution assembly

摘要

An electrical contactor assembly is provided including an electrical contactor, an electrical bus bar, and a panel formed from an electrically insulating material. At least one post protrudes through the panel and is in contact with the electrical bus bar. The at least one post is constructed from an electrically and thermally conductive material. A first end of the at least one post is configured to electrically and thermally connect to the electrical contactor. A heat sink is removably coupled to a second end of the at least one post. The heat sink includes a body having a plurality of fins extending radially outward. A first portion of the plurality of fins extends around a circumference of the body. A second portion of the plurality of fins extends around only a portion of the circumference of the body.

主权项

1. An electrical contactor assembly comprising:
an electrical contactor; an electrical bus bar; a panel formed from an electrically insulating material; one or more posts protruding through the panel and in contact with the electrical bus bar, the one or more posts being constructed from an electrically and thermally conductive material, wherein a first end of each of the one or more posts is configured to electrically and thermally connect to the electrical contactor; and a heat sink removably coupled directly to a second end of one of the one or more posts, the heat sink including a body having a plurality of fins stacked axially along the body, wherein in a first portion of the plurality of fins, each fin of the first portion extends around an entire circumference of the body and in a second portion of the plurality of fins, each fin of the second portion extends around only a portion of the circumference of the body.