| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting device capable of downsizing a heat sink while maintaining its heat radiation properties without jeopardizing attachment and detachment properties of a power source connector. <P>SOLUTION: The heat sink 11 has integrally formed a wall part 12, a base part 13 set in protrusion at a front side of the wall part 12, and fins 14a, 14b set in protrusion at a rear-face side of the wall part 12. The lighting device 10 is provided with the heat sink 11, an insulating board 50 having light-emitting elements 60 loaded, a holder 40 for mounting and fixing the insulating board 50 on the base part 13, a power source connector 40c integrally formed with the holder 40, and a recessed part 12a formed at a connecting portion of the wall part 12 with the base part 13 with an upper direction open. The power source connector 40c is arranged so as to be headed upward inside the recessed part 12a. End faces of the fins 14a, 14b are arranged on the same plane, the fin 14b at a rear-face side of the recessed part 12a being longer in a rear-face direction than the fin 14a at a part other than the rear-face side of the recessed part 12a. <P>COPYRIGHT: (C)2013,JPO&INPIT |
