| 摘要 |
PURPOSE: An unfreezing device for door of rail vehicle is provided to prevent the service delay of rail vehicle by making normal door operation. CONSTITUTION: An unfreezing device for door of rail vehicle comprises a door rail(24), a heater, an air temperature detecting part, a controller, and a switching part. The door rail guides a door of a railway vehicle sliding. The heater is located inside the door rail and is heated by power supply. The air temperature detecting part senses the outdoor air temperature of a door. The heater is control the heating operation of a heater by comparing an outdoor unit temperature and a preset temperature, when the outdoor unit temperature is lower than the preset temperature. The switch part receives a switching control signal from the controller and inputs power supply to the heater.
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