| 摘要 |
<p>The present invention relates to a compact high-power LED lighting device having an orderly and simple assembly structure such that high-power lighting is possible and a production assembly is simple. According to the present invention, the lighting device comprises a fan (50) disposed inside a case body (10), a circuit board (42) which converts AD into DC so as to drive the fan (50), an insulation plate (44), a cylindrical heat dissipation plate (20) made of an aluminum material, an LED substrate (30), and a diffusion plate (60; polarization scattering lens), which are sequentially arranged and combined. The cylindrical heat dissipation plate (20) has a structure in which multiple heat dissipation fins of a horizontal direction plate structure are formed in a radical direction of a cylinder. The case body (10) including upper and lower cases (12, 14) is connected to expose the side of the heat dissipation plate (20) to the outside, such that heat air is circulated through a space between the heat dissipation fins to thereby dissipate the heat. A hole for wiring connection of the LED substrate (30-42) and air circulation is formed in the center of the heat dissipation plate.</p> |
