NATURAL VENTILATION APPARATUS FOR WINDOW WITH IMPROVED THERMAL PERFORMANCE USING AIR LAYER

摘要

The present invention relates to a natural ventilation apparatus for a window with improved thermal performance using an air layer. More specifically, the said invention comprises: an outer frame placed on an outdoor side of a window frame having an air passage; an inner frame coupled to respectively be clamped by a coupling member on an upper and lower portion of the outer frame; an opening and closing flap wherein an end portion is rotated to selectively open and close an air passage of a space between the outer frame and the inner frame; a side frame respectively coupled to both sides of the outer frame and the inner frame; an opening and closing switch to drive an opening and a closing of the opening and closing flap; an air vent respectively installed in both sides of the inner frame; and a finishing plate clamped between the opening and closing switch and the air vent in an inner side.;COPYRIGHT KIPO 2015