Light fixture with central lighting housing and peripheral cooling housing

摘要

An illustrative light fixture includes a cylindrical lighting package housing surrounded peripherally by a cooling housing providing airflow cooling channels. The airflow cooling channels are defined in the space between the circumference of the cylindrical lighting package housing and a rim around the periphery of the light fixture. The cooling housing provides wide and long openings for air to rise vertically from below and through the airflow channels defined in part by cooling fins, and radial exit channels with vertical space for radially outward flow below a ceiling the fixture is mounted on, while also eliminating or minimizing the view through the airflow channels and to the ceiling.

主权项

1. A light fixture, comprising:
an light package housing including emitters; an illumination side of the light package housing, the emitters projecting light from the illumination side; a top side of the light package housing, located opposite the illumination side; and a cooling housing extending peripherally around an outer circumference of the light package housing, the cooling housing including a plurality of cooling fins, a rim, and a radial ring fin support; and wherein: the rim couples the cooling fins around an outer circumference of the cooling housing; the plurality of cooling fins span radially between the outer circumference of the light package housing and the rim; and the radial ring fin support radially spans a portion of adjacent vertical fins between the rim and the outer circumference of the light package.