Subway vehicle built-in top plate and air duct integrated module structure

Abstract

The invention provides a subway vehicle built-in top plate and air duct integrated module structure which comprises a built-in top plate structure, an air duct structure and a heat preservation and insulation layer. The built-in top plate structure comprises air supply structures arranged on the lower portions of the two sides and top plate profiles arranged on the upper portions of the two sidesand used for hoisting a built-in top plate and air duct integrated module to the top of a vehicle body. The air duct structure comprises an inverted-U-shaped air duct shell, partition plates in the air duct shell in the vehicle body direction and sealing rings at the two ends, the air duct shell and the lower sides of the partition plates are fixedly connected with the built-in top plate structure, and the partition plates divide the space defined by the air duct shell and the built-in top plate into a plurality of air supply cavities. The two side partition plates and the air duct shell are arranged on the two sides of the air supply structures of the built-in top plate structure to form air supply cavities in the two sides, the air supply cavity in the middle supplies air to the end of acarriage, and the heat preservation and insulation layer is fixedly connected with the outer side of the air duct shell. The built-in top plate and the air duct are integrated, the problem that the air duct is not tightly sealed due to assembly is solved, assembly procedures are reduced, and the weight of the vehicle body is reduced.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle interior system for urban rail vehicles, and in particular relates to a subway vehicle interior roof and air duct integrated module structure. Background technique [0002] At present, the interior roof and air duct structure of existing subway vehicles are split structures. Since the split structure needs to consider the structural strength of each component separately, it is difficult to further reduce the weight of the interior roof and air duct, which cannot meet the lightweight interior of subway vehicles. design needs. In addition, there is still a problem of insufficient assembly precision in the roof and air duct structure of the existing subway vehicles. Due to structural constraints, it is difficult to ensure the theoretical gap between the roof and the air duct, which in turn causes a gap between the air supply port of the air duct and the air inlet of the ventilation grille. The ...

AI Technical Summary

Problems solved by technology

[0002] At present, the interior roof and air duct structure of existing subway vehicles are split structures. Since the split structure needs to consider the structural strength of each component separately, it is difficult to further reduce the weight of the interior roof and air duct, which cannot meet the lightweight interior of subway vehicles. design requirements

In addition, there is still a problem of insufficient assembly precision in the roof and air duct structure of the existing subway vehicles. Due to structural constraints, it is difficult to ensure the theoretical gap between the roof and the air duct, which in turn causes a gap between the air supply port of the air duct and the air inlet of the ventilation grille. The sealing cannot meet the requirements, which eventually leads to the problem of insufficient fresh air in the passenger room

[0003] At the same time, the existing subway vehicles need to install two installation processes of air duct and interior roof during the assembly stage

First install the air duct and then install the interior roof plate, and each process requires a separate positioning adjustment, which has problems such as cumbersome installation process, long assembly cycle, and high production cost.

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