| 摘要 |
PROBLEM TO BE SOLVED: To achieve a stable display operation preventing a drop in compensation limit for the display operation by efficiently eliminating the heated atmosphere by heat generated from a display face under any degraded environment that allows the retention of the atmosphere in front of the display face. SOLUTION: A display part 124 made up of a board 252 and a liquid crystal panel 256 is mounted longitudinally on a gauge part 114 and the atmosphere in front of a display face of the liquid crystal panel 256 kept closed by a protective cover 268 of a center decoration member 250 is guided with an exhaust heat fan 276 installed at the upper end part of the board 252 through a guide path 272 to be discharged outside a case 260. In this process, partition plates 274 and 274A are so arranged as to intentionally prevent heat generated from electronic components from reaching a space part 270 and efficiently let out the atmosphere on the display face, thereby preventing a rise in temperature. |
