VENTILATION DEVICE FOR VENTILATION OF CABINET

To provide a ventilation device for ventilation of a cabinet that can prevent rainwater from entering the interior of the cabinet without dampening the momentum of the wind, and requires less installation space.SOLUTION: Two louver plates 2 with multiple louvers are arranged so as to overlap each other. The louver plates 2 include swollen parts 10 in the same shape which are arrayed on one surface, and the louver is formed by having a slit-shaped opening 10a at the lower end or upper end of the swollen part 10. A first louver plate 2a being one of the two louver plates 2 constitutes the front surface of a ventilation device 1 for ventilation such that a surface on which the swollen part 10 is formed is arranged in an exposed manner, and the louver is formed by opening the lower ends of all the swollen parts 10. A second louver plate 2b being the other of the two louver plates is arranged on the back of the first louver plate 2a such that the swollen part is formed on the rear surface, and the louver is formed by opening the upper ends of all the swollen parts 10. On the first louver plate 2a and the second louver plate 2b, the swollen parts 10 thereof are arranged so that 40% to 100% of the swollen parts 10 overlap each other.SELECTED DRAWING: Figure 1 【課題】 風の勢いを削ぐことなくキャビネット内部への雨水の侵入を防止でき、且つ少ない設置スペースで済むキャビネットの換気用通風装置を提供する。【解決手段】 複数のルーバを備えたルーバ板２を２枚重ねて配置し、ルーバ板２は同一形状の膨出部１０が一方の面に列設され、当該膨出部１０の下端或いは上端にスリット状の開口部１０ａを有してルーバを形成している。２枚のルーバ板２のうちの一方の第１ルーバ板２ａは、膨出部１０が形成された面が露出配置されて換気用通風装置１の前面を構成し、全ての膨出部１０の下端を開口してルーバが形成される一方、他方の第２ルーバ板２ｂは、第１ルーバ板２ａの背部に配置されて背面に膨出部が形成され、全ての膨出部１０の上端を開口してルーバが形成されている。第１ルーバ板２ａと第２ルーバ板２ｂは、膨出部１０の４０％～１００％が重なるよう互いの膨出部１０が配置されている。【選択図】 図１