| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of part items and power consumption while securing sufficient heat radiation to the outside of a control panel. SOLUTION: A cooling device for a control panel is composed of an amplifier (heating element) 6 equipped with heat radiant fins 31 and a cooling fan 33, and an air duct 10 equipped with an air intake port 11b and an air exhaust port 25. The amplifier 6 is housed in a nearly air tight housing 2, and the heat radiant fins 31 and the cooling fan 33 are contained inside of the duct 10. The air duct 10 is located so as to surround on least a front side, a top side and a back side of the amplifier 6. An air intake port 11b is formed on the front duct part 11. The heat radiant fins 31 and the cooling fan 33 are contained inside the back duct part 20, and the air exhaust port 11b is made on the back side part 20. Air taken in from the air intake port 11b by the cooling fan 33 is introduced through the front side and top side duct parts 11, 15 to the back duct part 20. The introduced air is discharged from the air exhaust port after letting it pass through the heat radiating fins 31. |
