| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular lighting fixture including a heat sink also serving as a base of a light source and the like in which deformation of radiation fins hardly occurs, which can suppress deviation of intervals between the radiation fins and which can acquire predetermined heat radiation properties, and a manufacturing method of the heat sink.SOLUTION: A vehicular lighting fixture 10 has a semiconductor light source 22 and a heat sink 20. The heat sink 20 has: a mounting part 21 for mounting the semiconductor light source 22; a standing wall part 23 continuing to a vehicle rear side of the mounting part 21; and a plurality of radiation fins 24 whose cross-section is substantially L-shaped and which are juxtaposed in a vehicle width direction from a vehicle lower side of the mounting part 21 to the vehicle rear side of the standing wall part 23. Then, the plurality of juxtaposed radiation fins 24 have a connection part 25 connected in the vehicle width direction at a vehicle rear side end part of the radiation fins 24. Therefore, deformation of the radiation fins 24 hardly occurs, deviation of the intervals between the radiation fins 24 can be suppressed and predetermined heat radiation properties can be acquired. |
