Patent ID: 7434964
Filing Date: 2008-10-14
Classification: F21K,F21V,F21Y

Abstract:
1. An LED lamp comprising: a hollow prism-shaped heat sink with a through hole defined therein from a top to a bottom thereof; a cover adapted for engaging with the heat sink having a plurality of apertures defined therein for providing passages for airflow; a plurality of LED modules being attached to an outer sidewall of the heat sink, each of the LED modules comprising a printed circuit board and a plurality of LEDs mounted thereon, the heat sink forming an annular base extending outwardly beyond the outer sidewall thereof to be located spacedly beneath the LED modules; a plurality of additional fins and protrusions extending from the heat sink with at least two additional fins located between two adjacent fins and at least one protrusion located between other two adjacent fins approximate to the at least two additional fins and a plurality of heat pipes mounted on an inner sidewall of the heat sink corresponding to the LED modules, wherein when the LEDs are activated, heat generated by the LED modules is transferred to the heat sink evenly via the heat pipes.