Low aerodynamic noise type current collection equipment.

摘要

A low aerodynamic noise type current collection equipment is provided for reducing variation in aerodynamic force applied to a current collector during the train operation. A central region (2a) of a current collector (1) having a collector head (2) with a top surface in which a contact strip (3) is embedded is rectangular in cross-section, and each side region is shaped in cross-section convex in the front and rear directions, such as an elliptical shape. The rectangular shape has characteristics such that the magnitude of the aerodynamic lift force would be kept substantially constant even if the inclination angle against the aerial flow would be changed. Accordingly, the cross-sectional shape of the central region (2a) of the current collector (1) which is liable to receive the turbulent aerial flow by the support portion (4) in the current collector (1), whereby it is possible to suppress the variation in aerodynamic lift force generated in the current collector even if the angle of the aerial flow that would collide against the current collector (1) would be unstable. The cross-sectional shape of each side region (2b) is made convex in the front and rear directions such as an elliptical shape to thereby reduce the aerodynamic noise.