| 摘要 |
The present invention relates to a box having a roof portion and a device storage portion, wherein the roof portion is vertically spaced apart from the upper end of the device storage portion and supported by pillars elected from four corners of the upper end of the device storage portion; the upper part of the device storage portion is closed by a ceiling panel; a ventilation hole formed at the central part of the ceiling panel to make the inner side of the device storage portion communicate with the outside is covered by a porous panel; four standing wall parts of the device storage portion are fixed by coupling means with a spacer interposed between an inner panel and an outer panel of flat panels; a vertically inclined Louver-type through-hole is formed to make external air introduced into and discharged from the upper and the lower part of the inner panel. |
