| 摘要 |
PURPOSE: A multi-blade type louver is provided to facilitate the assembling of blades, make the flowing of air smooth, and improve the removal efficiency of dust and water particles. CONSTITUTION: A multi-blade type louver includes front and rear base plates(1,3) having plural drain holes(13) and upper, lower, and inner blades(5,6,7) forming air passages. Each front and rear end of the blades is fixed to the opposite inside of the front and base plate. The upper and lower blades form each upper and lower side of the air passage. The upper blade has plural protruded pleats(15), perpendicular to the air flow(a) and horizontally extended; drain channels(17) extended in parallel with the protruded pleats; and plural screw-fastening parts(19) extended in parallel with the protruded pleats and the drain channel. The inner blade has protruded pleats(21) having the same structure as the upper blade, and has drain channels(23). The inner blade has a vertical space protrusion(25) and drain channels(27) extended in the same direction as the vertical space protrusion. A screw-fastening part(29) to which a set screw(11) is fastened is installed to the vertical space protrusion.
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