Patent ID: 7568817
Filing Date: 2009-08-04
Classification: F21K,F21V,F21Y

Abstract:
1. An LED lamp comprising: a bulb; an LED module comprising a plurality of LEDs received in the bulb; a heat dissipation apparatus supporting and cooling the LED module, the heat dissipation apparatus comprising: a heat sink having a hollow base and a plurality of fins mounted on the base; a hollow first heat conductor supported by the heat sink; a second heat conductor mounted on the first heat conductor; a heat pipe thermally connecting the heat sink, the first heat conductor and the second heat conductor in series, the heat pipe having a first leg in contact with the heat sink and the first heat conductor, and a second leg extending from the first leg, the second leg contacting with the second heat conductor; wherein the LEDs are positioned on the first heat conductor and the second heat conductor, respectively; wherein the hollow first heat conductor has an inner surface with a channel defined thereon, and another part of the first leg of the heat pipe is retained in the channel of the first heat conductor.