Light fixture with central lighting housing and peripheral cooling housing
AssigneeRAB Lighting Inc.
InventorsVincenzo Guercio, Jiang Hu, Dan Wang-Munson
Life of this patent
Estimating the term…
Abstract
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.
Claims20
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.
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;
- 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,
- a plurality of vertical cooling channels defined between the rim, outer circumference of the light package housing, and adjacent ones of the plurality of cooling fins;
- 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 radial ring fin support radially spans a portion of adjacent vertical fins between the rim and the outer circumference of the light package, a bottom side of the radial ring fin support redirects radially inwardly, toward the light package housing, each of the plurality of vertical cooling channels.
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;
- 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,
- a plurality of vertical cooling channels defined between the rim, outer circumference of the light package housing, and adjacent ones of the plurality of cooling fins;
- 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 radial ring fin support forms an annulus extending from the rim and inwardly toward, but not touching, the outer circumference of the light package housing, and a bottom side of the radial ring fin support redirects radially inwardly, toward the light package housing, each of the plurality of vertical cooling channels.
Dependencies are inferred from the claim text.