| 摘要 |
PROBLEM TO BE SOLVED: To make it easy to carry out maintenance and inspection of a luminaire and to change a light source and prevent electric parts from being affected by thermal effects from a light source by installing a plate-like supporting body and a partitioning plate inside a luminaire main body. SOLUTION: A plate-like supporting body 2 to be supported in the inside of a luminaire main body 1 is constituted of a projected part 3 near the center part in the longitudinal direction and the projected part 3 has flat parts 4 in both ends. A recessed part 5 is formed in the upper face center of the inside of the supporting body 2 in the vertical direction by the projected part 3. A partitioning plate 6 installed in the inner end part of the supporting body 2 is so installed as to constitute an electric parts-housing chamber 7 and a light source housing chamber 8. With this structure, by detaching the supporting body 2, maintenance and inspection work for the luminaire can be made easily and attributed to the partitioning plate 6, electric members are protected from being affected by thermal bad effects of the light source 10 and furthermore due to the recessed part 5 formed in the upper face center of the inside of the supporting body 2, heat convection current is generated and the temperature rise in the recessed part 5 can be suppressed and consequently, bad effects of intense heat on electric parts can be avoided. |
