| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lighting device whose heat radiation section is increased in volume.SOLUTION: A heat radiation section 40 of an LED lighting device 100 has a polygonal pillar shape having an upper face, a lower face, and a plurality of side faces. The heat radiation section 40 has a body section 41 forming a hollowed section 49 which is tapered from the upper face to the lower face, a plurality of swelled sections 42 swelling from corners of the body section 41 to a lateral direction (radial direction), and a plurality of fins 43 each projecting from the corners of the body section 41 to an upper direction in a square shape. An LED substrate 20 has a plurality of LEDs 23 (light-emitting diodes) mounted thereon, and is mounted on the heat radiation section 40. The heat radiation section 40 has a plurality of corner claws 46 arranged on the corners of the lower face, and a top cover 10 has a plurality of corner fixing sections 11 engaging with the corner claws 46. |
