Thermal bridge for LED luminaires

摘要

A luminaire includes two housing halves, movable relative to each other between an open and closed configuration. The bottom housing half includes disposed therein a substrate which itself carries at least one LED which transmits light through a window in the bottom housing half. A thermal bridge made of at least one layer of anisotropic thermally conductive graphite is in thermal contact with the substrate and the top housing half when the housing is in the closed configuration, but its disengaged from either the substrate or top housing half when the housing is in the open configuration.

主权项

1. A luminaire comprising:
a bottom housing having a window; a top housing movable relative to said bottom housing between an open configuration and a closed configuration; a substrate carrying at least one LED, said substrate being positioned in said bottom housing and light from said at least one LED transmitted through said window; and a thermal bridge comprising a plastic structural layer and at least one layer of anisotropic thermally conductive graphite, said graphite being in thermal contact with said substrate and said top housing when said top housing is in the closed configuration and said graphite being disengaged from thermal contact with one of said substrate and said top housing when said top housing is in the open configuration, wherein said graphite comprises at least one of one or more sheets of compressed particles of exfoliated graphite and one or more sheets of pyrolytic graphite.