PANTOGRAPH FOR HIGH-SPEED TRAIN PROVIDED WITH PAN HEAD ATTACHMENT FOR REDUCING AERODYNAMIC NOISE

摘要

A pantograph for a high speed train having a fan head attachment for reducing an aerodynamic noise according to an embodiment of the present invention comprises: an under body which is installed on a railroad car; a frame unit which is coupled with the under body to rotate, and folded to be tilted during rotation; a fan head which is coupled with the frame unit to be tilted with the frame unit, and receives a power source for operation from the outside; and an air resistance reducing block which is attached to the fan head to form a streamline structure. According to the present invention, a conventional fan head can be formed in a streamline structure at low costs by attaching air resistance reducing blocks having streamline structures to front and rear surfaces of the fan head which has a rectangular cross-section. Therefore, disturbance in a flow is narrowly delivered to a rear portion and the generation of a vortex is minimized in the rear portion of the fan head. Also, since a noise due to the vortex is reduced, a drag due to a pressure difference between the front and rear portions can also be decreased.