Patent ID: 8919996

Claim:
A lighting lamp, comprising: a power module housing configured to have a power connection base fixed on one side thereof; a power module installed within the power module housing; a circular shielding plate configured to cover a lower portion of the power module, fixed to the power module housing, and configured to have a plurality of holes for connectors formed on its circumference; a housing cover configured to cover the circular shielding plate, fixed to the power module housing, and configured to have a plurality of vent holes formed on its edges and lower circumference and have two or more module insertion holes formed at a bottom surface thereof; two or more LED lighting modules inserted into and fixed to the module insertion holes of the housing cover and connected to the power module and a power source by the connectors, each of the two or more LED lighting modules comprising: a LED module configured to have a plurality of LED elements arranged in a circuit board having a connector for power connection provided on one side thereof and formed of a surface light-emission body; a light diffusion cover configured to cover an upper side of the LED module in a semi-cylindrical shape and have projection type wings formed on left and right sides thereof, respectively; and a heat dissipation plate combined to cover a lower side of the LED module, configured to have an edge thereof inserted into a bottom edge of the light diffusion cover and fixed to a bottom of the light diffusion cover, and made of metal, wherein the LED module, the light diffusion cover, and the heat dissipation plate are integrally combined, and wherein the two or more LED lighting modules are inserted into the module insertion holes of the housing cover to form a lamp type light-emission unit of a polygonal structure; a plurality of vent holes for heat dissipation formed at edges on left and right sides of each of the two or more LED lighting modules so that the projection type wings formed on left and right sides of each of the two or more LED lighting modules come in contact with each other when the two or more LED lighting modules are combined to form a cylindrical light-emission unit; and a bottom cover detachably and attachably combined to a lower side of the two or more LED lighting modules and configured to support an assembled light-emission unit and have one or more vent holes for heat dissipation formed in its bottom surface, so that wide angle light distribution is performed and heat is dissipated by a convection current in all directions.