Patent ID: 8376587

Claim:
An LED illuminating device, comprising: an optical section at a bottom end of the LED illumination device, the optical section comprising at least an LED emitter; an electrical section at a top end of the LED illumination device, the electrical section electrically connecting with the at least an LED emitter; and a heat dissipation section between the optical section and the electrical section, the heat dissipation section comprising: an upper substrate and a lower substrate being parallel to and spaced from the upper substrate; a plurality of fins arranged between the upper and lower substrates; and at least a heat pipe comprising an evaporating section connected to the lower substrate and a condensing section connected to the upper substrate, the at least an LED emitter thermally attached to the lower substrate, the at least a heat pipe transferring heat of the at least an LED emitter from the lower substrate to the upper substrate; wherein the electrical section comprises a circuit board and a cover plate above and connected with the circuit board, the circuit board electrically connected to the at least an LED emitter; and wherein a plurality of mounting holes are defined in the upper and lower substrates, respectively, a plurality of fixing holes coaxial with the mounting holes being defined in the cover plate, a plurality of fasteners each extending through a corresponding fixing hole of the cover plate, a corresponding mounting hole of the upper substrate and a corresponding mounting hole of the lower substrate for connecting the electrical section and the heat dissipation section together, an area of the cover plate of the electrical section exceeding that of the circuit board, and a predetermined distance being defined between the cover plate and the heat dissipation section.