The invention provides an emergency ventilation control circuit of a railway vehicle, and relates to the technical field of air conditioning equipment of rail transit vehicles. The emergency ventilation control circuit comprises a speed regulation transformer connected with a 380V power supply system and an emergency power supply system, an air feeder connected with the speed regulation transformer, and an air speed rotary knob switch arranged between the output end of the speed regulation transformer and the input end of the air feeder. The emergency ventilation control circuit is characterized in that a first switch and a second switch are arranged between the speed regulation transformer and the air feeder, the low-voltage input end of the air speed rotary knob switch is connected with the low-voltage output end of the speed regulation transformer through the first switch, the high-voltage input end of the air speed rotary knob switch is connected with the high-voltage output end of the speed regulation transformer, the wiring end of the second switch is connected with the high-voltage output end of the speed regulation transformer and the output end of the air speed rotary knob switch, and an interlocking device is arranged between the first switch and the second switch. The emergency ventilation control circuit has the beneficial effects that under low-voltage power supply in a vehicle emergency mode, the air feeder of an air conditioner in a cab is forced to run at the highest air speed, and comfort is improved.
Emergency ventilation control circuit of railway vehicle
2015-12-16
Patent
Elektronische Ressource
Englisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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