Title:
LED LIGHTING FIXTURE AND LIGHTING APPARATUS USING SAME
Document Type and Number:
WIPO Patent Application WO/2011/090311
Kind Code:
A2
Abstract:
Disclosed are an LED lighting fixture and a lighting apparatus using same. A heat transfer filler fills the entirety of the empty space in a light-source-accommodating unit of a heat sink which accommodates an LED light source unit. In addition, a transparent thermally conductive material is applied onto a front light-emitting surface of an LED device to close a light-emitting opening formed in the light-source-accommodating unit. A portion of the heat generated by the LED device is transferred to the heat sink via a PCB on which the LED device mounted, another portion of the heat generated by the LED device is transferred to the heat sink through the thermal conduction performed by the heat transfer filler and dissipated, and a final portion of the heat generated by the LED device is transferred to the heat sink through the thermal conduction performed by the transparent thermally conductive material and dissipated, and dissipated in the air outside the LED device. In addition, each LED device is designed such that a heat sink is arranged tightly and closely to each LED device, and thus a heat conduction path of the heat transfer filler is maximally shortened. The thermally conductive material absorbs heat directly from all of the contact portions of the LED device, and uniformly transfers the absorbed heat through thermal conduction via said shortest omnidirectional path, thereby effectively dissipating heat to prevent LED devices from overheating, and thus obtaining superior optical characteristics and lengthening the lifespan of LED devices. A plurality of the above-described LED lighting fixtures can be combined to form an indoor/outdoor LED lighting apparatus.
Inventors:
MYUNG BEOM-YOUNG (KR)
Application Number:
PCT/KR2011/000384
Publication Date:
July 28, 2011
Filing Date:
January 19, 2011
Export Citation:
Assignee:
MYUNG BEOM-YOUNG (KR)
International Classes:
F21V29/00; F21V29/505
Foreign References:
| KR20080002564U | 2008-07-11 | |||
| KR100879818B1 | 2009-01-23 | |||
| KR100909366B1 | 2009-07-24 |
Attorney, Agent or Firm:
PARK, HEEJIN (KR)
박희진 (KR)
박희진 (KR)
Download PDF:
Claims: