| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exhaustion structure in an electrical equipment housing box, which is capable of preventing occurrence of heat reservoir even when a unit is vertically disposed.SOLUTION: A U-shaped unit attachment metal fitting 7 made up of upper and lower arm parts 8 and 9 and a coupling part 10 for coupling them is disposed inside a casing 1 of an electrical equipment housing box. A unit 21 having electric-electronic equipment mounted thereon is vertically attached to the unit attachment metal fitting 7. An exhaust hole 14 is formed in the upper arm part 8, and an intake hole 15 is formed in the lower arm part 9. A fan 16 is attached to at least one of the upper and lower arm parts 8 and 9. |
