Commercial Vehicle Box Body Cable Duct Integration
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Solution Overview
Problem
Conventional box bodies for commercial vehicles with integrated cable ducts weaken the floor structure, leading to reduced strength and insulation issues, as well as limitations in cable routing and accessibility for repairs.
Innovation Solution
The cable duct is integrated into the side wall parts, creating a stepped design that allows the floor to be free of ducts, with the duct running beneath the side walls and supported by the base part, enabling a rigid connection and external accessibility for easier routing and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cable ducts are integrated into floor parts, then cable routing is enabled, but floor strength is reduced
Solution Approach 1:
The cable duct is relocated from the horizontal floor plane to the vertical space beneath side wall parts. By extending the duct from the side wall region down to the base part underside, the patent creates a three-dimensional cable routing path that bypasses the floor structure entirely, eliminating the conflict between cable accommodation and floor strength.
Solution Approach 2:
The cable duct function is extracted from the floor part and relocated to the side wall/base part region. This separation allows the floor to maintain its full structural integrity while the cable duct provides dedicated cable routing in a different location, resolving the strength reduction issue.
2Adaptability or versatility
If cable ducts are integrated into floor parts, then cable routing is enabled, but insulation performance deteriorates
Solution Approach 1:
The cable duct is extracted from the floor part and relocated to the side wall/base part region. This spatial separation prevents the cable duct from creating thermal bridges or compromising the continuous insulation layer in the floor, thereby maintaining optimal thermal insulation performance while still enabling cable routing.
3Adaptability or versatility
If cable ducts are integrated into floor parts, then cable routing is enabled, but accessibility for repairs is reduced
Solution Approach 1:
The cable duct is designed with external accessibility features, allowing maintenance personnel to access and service cables from the outside of the box body without requiring disassembly of floor parts or internal structures. This external access design enables self-service maintenance and significantly improves repair ease.
4Strength
If side wall parts are stepped with free space for base part, then rigid connection is achieved, but structural complexity increases
Solution Approach 1:
The stepped side wall part integrates multiple functions: it provides structural support for the base part, creates accommodation space for the cable duct, and maintains overall structural integrity. By merging these functions into a single structural feature, the patent achieves rigid connections without proportionally increasing complexity.
Data Source
Figure 1
Figure 2~4
AI summary
The invention relates to a box body 1 for commercial vehicles with roof 4, side wall 2, 3 and/or floor sections 5 preferably made of sandwich panels, to which a metallic corner connector 17, a strut, a profile 12 or the like can be attached, wherein at least one cable duct 10 for arranging cables 11 and/or cable bundles is integrated into the box body. To improve this box body 1, it is provided that the cable duct 10 is provided between a side wall 2, 3 and a floor section 5, which is essentially flush with the outer wall of a side wall section 2, 3 and essentially flush with an underside of a floor section 5, thereby allowing a removable cover 14 to be closed (Fig. 3).