Patent ID: 7976188
Filing Date: 2011-07-12
Classification: F21S,F21V,F21Y,F28D

Abstract:
1. A light emitting diode (LED) illumination lamp device, comprising: a base plate; a circuit board arranged on a first surface of the base plate; a heat-dissipating body arranged on a second surface opposite to the first surface of the base plate, the heat-dissipating body including a plurality of heat sinks, each of the plurality of heat sinks having a through hole defined therein, a groove being defined on the second surface, and a heat pipe having a heat-absorbing portion being contained in the groove and a heat-dissipating portion passing through the through hole of each of the plurality of heat sinks; a plurality of LEDs; a driving circuit; and a control circuit; wherein the plurality of LEDs, the driving circuit and the control circuit are arranged on the circuit board and electrically connected to each other, the control circuit is configured for controlling the driving circuit to output a driving power, and the plurality of LEDs emitting light based upon the driving power, thereby heat generated from the LEDs, the driving circuit and the control circuit are transmitted to the base plate and absorbed by the heat-absorbing portion, then the heat are transmitted to the heat sinks through the heat-dissipating portion and dissipated by the heat sinks, wherein the circuit board is composed of a first circuit board and a second circuit board, the plurality of LEDs being arranged on the first circuit board, and the driving circuit and the control circuit being arranged on the second circuit board.