| 摘要 |
PURPOSE:To obtain control center units which efficiently radiate heat generated large heat-generators inside the units without allowing the heat to stay in the units, and which require no large heat-radiation space inside the units. CONSTITUTION:A ventilation duct 7 is provided just above a large heat generator 4 installed inside a unit 2. The duct 7 is designed to discharge heat to outside through a ventilation opening 8 in a unit side plate 3, thereby radiating heat, generated from a large heat-generator 4, to outside through the space isolated by the ventilation duct 7, unallowing the heat to stay inside the unit. Thus, the other devices inside the unit do not need to be highly heat-resistant nor to be constituted such that they are not affected by heat, resulting in cutting cost of the unit. |
