Patent ID: 8974091
Filing Date: 2015-03-10
Classification: F21K,F21V,F21Y

Abstract:
1. A heat-dissipating structure for LED lamp comprising: a lamp cover having: a ceramic substrate mounted inside the lamp cover intermediate the front and rear annular orifices, securely mounted on the mounting ears, and having: a power cap mounted inside the lamp cover between the rear annular orifice of the lamp cover and the ceramic substrate; a power conversion device mounted on the rear annular orifice of the lamp cover, facing the ceramic substrate, and electrically connected to the multiple LEDs on the ceramic substrate; and a heat convection space surrounded by the ceramic substrate, the power cap, and the lamp cover, being hollow, and communicating with the heat-dissipating holes and the air passage, wherein heat generated by the LEDs is absorbed by the ceramic substrate and conducted to the mounting ears and the lamp cover, wherein heat absorbed by the ceramic substrate is transferred to the heat convection space by way of heat convection, wherein the power cap isolates heat generated by the LEDs, wherein heat generated by the power conversion device and absorbed by the power cap is transferred to the heat convection space, wherein heat on the lamp cover is transferred to ambient air, and wherein heat accumulating in the heat convection space is transferred to the ambient air through the heat-dissipating holes of the lamp cover and through the air passage hole.