Motor train unit and outer windshield thereof

Abstract

The invention discloses a motor train unit and an outer windshield thereof. The outer windshield is arranged on an end wall of a motor train unit body, the outer windshield is fully coated with rubber, is in contact with an outer windshield of an adjacent motor train unit body, is in a circle shape and is arranged around the end wall of the motor train unit body, the outer end surface of the outer windshield is in an arc shape, and two adjacent outer windshields are in linear contact. The outer windshield has the advantages that after the motor train unit bodies are hung, the outer windshields of the adjacent motor train unit bodies are in contact arrangement, the whole end wall is surrounded by the outer windshield, and the gap between the motor train unit bodies along the length and circumference directions of the motor train unit is none, so the connection of the end parts of the whole motor train unit is smooth, the driving drag of the motor train unit is reduced, and the aerodynamics property of the motor train unit is further improved; on this basis, the outer windshields are in linear contact, so the possible friction drag between the adjacent outer windshields is minimized.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to an EMU and its outer windshield. Background technique [0002] The resistance at the end of the train is mainly the pressure loss caused by eddy currents, which accounts for a large proportion of the resistance of the whole train. For this reason, in the prior art, the outer windshield coating is added to the end wall of the EMU to realize the smooth connection of the end of the EMU and improve the aerodynamic performance of the EMU. [0003] At present, the outer windshields in the prior art are arranged on both sides of the end walls of the car body to realize the windshield function. But there are following technical problems in this scheme: [0004] First, there is a gap between the outer windshields of two adjacent car bodies, resulting in discontinuous connection of the car ends, and there is still a certain driving resistance; [0005] Second, there are electrical...

AI Technical Summary

Problems solved by technology

[0004] First, there is a gap between the outer windshields of two adjacent car bodies, resulting in discontinuous connection of the car ends, and there is still a certain driving resistance;

[0005] Second, there are electri

Images