Electric-powered door curtain

An electric-powered door curtain comprising:

• a curtain unit (100) including a shaft (110), a curtain blind (120) wound around an outer surface of the shaft (110), and a shade bar (130) fixed to an upper portion of the curtain blind (120) to support the curtain blind (120), and configured to selectively shield a window of a vehicle from an outside as the curtain blind (120) is wound around and unwound from the shaft (110);
• and
• a driving unit (200) configured to move the shade bar (130) upward and downward to allow the curtain blind (120) to be wound around and unwound from the shaft (110),
• wherein the driving unit (200) includes:
• a guide rail (210) disposed in a lower portion of the shaft (110), facing in a direction intersecting the shaft (110), and having a predetermined length;
• a slider (220) installed so as to be movable upward and downward along the guide rail (210), and including a movable pulley (221) installed inside the slider (220) so as to be fixed or rotatable;
• an antenna (230) having one end fixed to one side of the slider (220) and an opposite end fixed to the shade bar (130);
• a fixed pulley (240) installed so as to be fixed or rotatable at a position adjacent to a lower side of the shaft (110);
• a wire (250) having one end fixed at a position (250a) adjacent to the lower side of the shaft (110), and configured to pass through the fixed pulley (240) via the movable pulley (221);
• and
• a winding device (260) configured to wind an opposite end of the wire (250) to adjust a length of the wire (250).