LED illumination device with isolated driving circuitry
US8783937B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2012 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Oct 24, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure generally relates to several embodiments of a new illumination device using a plurality of LEDs, the device is designed to better diffuse heat produced from a heating driver circuitry and the LEDs in a way that allows for either the operating or equilibrium temperatures of the heat sensitive elements as part of the device to be subject to less stringent temperature increases and therefore improve the viability and energy performance of the device. The new design includes toroid-shaped external rings for the plurality of LEDs and a middle opening for the driver circuitry. The new design further includes fins and the use of different spaces and openings within the housing to help control the flow of heat by way of thermal conduction, thermal convection, or thermal irradiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.