Ambient air inflow minimization device for urban transit cabin

摘要

The present invention relates to an apparatus for minimizing outside air inflow into an under-floor cabin of an urban railway cabin, A blowing means provided at a lower portion of a passenger chair installed in a passenger room of a city railway vehicle and having a ventilating fan for discharging air inside the room or moving air from the entrance to the inside of the passenger compartment through an entrance provided with a door; And a device controller for controlling the blowing means according to the opening and closing state of the door to discharge the room air to the entrance or control the blowing fan to move the air toward the entrance.According to the present invention, when an urban railway vehicle is operated, the door is opened to / from a side of a chair when the passenger opens for entering / leaving the cabin or to a side of a chair at a doorway, The inflow of air can be minimized.