Light fixture with central lighting housing and peripheral cooling housing
US8985816B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2013 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Sep 10, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.