Patent ID: 6659359
Filing Date: 2003-12-09
Classification: F24F

Abstract:
A grille controlling apparatus for a ventilator having a grille cover on a front side of said ventilator and a grille casing on a rear side of said grille cover, the grille cover defining a plurality of grille holes, said apparatus comprising:at least one damper configured to open and close an air flow path; a damper driver, attached to said grille casing, that drives said damper to open and close the air flow path; a power supply that supplies power to at least said damper driver; a temperature sensor that senses an ambient temperature; a manipulator that selects one of a manipulation command and a predetermined driving mode of said damper driver; and a controller that receives a manipulating signal from the manipulator indicating one of the manipulation command and the selected driving mode, compares one of the manipulating signal and the selected driving mode with the sensed temperature of said temperature sensor, and controls said damper driver based on the comparison.