Pre-assembled Rail Car Roof Module with Integrated Functional Layers
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Solution Overview
Problem
The implementation of car box designs for rail vehicles is often time-intensive and costly due to space limitations, making it challenging to integrate various functions such as air conditioning, electrical components, and liquid cooling systems efficiently.
Innovation Solution
A pre-assembled roof module with a non-load-bearing outer skin and functional layers that can be easily attached to the car box, allowing for space-saving integration of multiple functions without subsequent installation work, featuring a split outer skin for load transmission and canal-shaped functional layers for air supply, electrical connections, and liquid cooling media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If roof openings are covered with roofing and equipment after car box completion, then protection and air conditioning functions are achieved, but implementation becomes time-intensive and costly due to space limitations
Solution Approach 1:
The patent applies preliminary action by pre-assembling the roof module with functional layers (air conditioning, electrical connections, liquid cooling) integrated into the roof structure before car box completion. This allows these functions to be installed simultaneously with the roof rather than as separate subsequent operations, directly reducing implementation time and costs while maintaining all necessary protection and environmental control functions
2Productivity
If multiple functional layers are integrated into the roof module, then time and cost savings are achieved, but device complexity increases
Solution Approach 1:
The patent merges multiple previously separate functions (air conditioning, electrical connections, liquid cooling, roof protection) into a single integrated roof module. This consolidation reduces the number of separate installation operations and components, thereby improving productivity and reducing implementation time while the modular design manages the inherent complexity through systematic integration
3Ease of manufacture
If functional layers are pre-assembled in the roof module, then subsequent installation work is eliminated, but manufacturing complexity increases
Solution Approach 1:
The patent performs preliminary assembly of functional layers within the roof module during manufacturing. This pre-integration eliminates the need for subsequent installation work on the completed car box, significantly improving ease of manufacture and reducing on-site installation complexity despite requiring more sophisticated manufacturing processes
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a car body for a rail vehicle, comprising a car body shell (1) having at least one roof opening (3) extending between side wall upper rails (2) of the car body shell (1) in the transverse direction of the car body shell (1), and comprising a removable roof element for completely closing the at last one roof opening (3), wherein the roof element is configured as a roof module (4) that is detachably secured on both sides of the side wall upper rails (2) and has a non-load-carrying outer skin (5), at least one roof bow (6) running underneath the outer skin (5) in the transverse direction of the car body for the load-carrying connection of lateral walls of the car body shell (1), and at least one functional layer (11, 14) arranged underneath the outer skin (5), wherein the outer skin (5), the at least one roof bow (6) and the at least one functional layer (11, 14) are securely connected to one another and form a pre-assembleable unit.