| 摘要 |
PROBLEM TO BE SOLVED: To improve the heat radiating property around an electronic lighting circuit, to make a luminaire thin and to reduce the constraint in designing by arranging a printed board controlled by the electronic lighting circuit in such manner that it forms the almost vertical surface to a front surface of a luminaire body. SOLUTION: A printed board forming an electronic lighting circuit 22 is fixed and arranged on a block mount base 29 in a closed space formed by the luminaire body 4 and a body cover in such manner that an almost vertical surface is formed to a front surface of the luminaire body 4. The electronic lighting circuit 22 is formed by the printed board and the electronic components, and a miniature electric bulb socket and a switch are fixed and arranged to the front surface of the luminaire body 4. Whereby the heat generated from the electronic components and the lamp 16 are hardly accumulated, and the heat radiating property around the electronic lighting circuit 22 can be improved. A molded insulation plate for insulating the electronic lighting circuit 22 from the luminaire body 4 becomes unnecessary, the heat conductivity in the direction of luminaire body 4 can be improved, and the heat radiating property of the luminanire can be improved. |
