| 摘要 |
An LED street lamp (100) comprises a case body (10), a heat-dissipation device (20), and multiple LED modules (30). The heat-dissipation device (20) is positioned in the case body (10), and comprises a first fixed plate (21), a second fixed plate (22), and multiple heat-dissipation units (23) positioned between the first fixed plate (21) and the second fixed plate (22). The multiple heat-dissipation units (23) are arranged along the peripheral direction of the first fixed plate (21) and that of the second fixed plate (22) to form a cylindrical structure; each heat-dissipation unit (23) comprises multiple heat-dissipation fins (231) and at least one subrack (232); the two ends of the subrack (232) are respectively positioned on the first fixed plate (21) and the second fixed plate (22); and the multiple heat-dissipation fins (231) are stacked and positioned on the subrack (232). The LED modules (30) correspond to the subracks (232) one to one, each LED module (30) comprises a substrate (31) and multiple LED lamps (32) provided on the substrate (31), and the substrates (31) are positioned on the subracks (232). |
