| 摘要 |
PROBLEM TO BE SOLVED: To provide a soundproof box for a portable apparatus, having excellent soundproof characteristic and easily assembled, disassembled and carried in a field. SOLUTION: Soundproof panels having a lamination structure of a metallic rear sound insulation plate, soft fibrous porous sound absorbing material and an aluminum porous sound absorbing plate, are fitted to a grooved bottom plate and a grooved upper frame. The soundproof box is thereby easily assembled or disassembled, and also a porous partitioning member is disposed in an internal space. An intake fan is arranged in a canopy part, and also an exhaust vent muffler is disposed on an exhaust vent side. Thereby, a heat dissipating effect in the soundproof box and a soundproofing effect of the soundproof box are further improved. COPYRIGHT: (C)2008,JPO&INPIT
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