Cargo Trailer Frame Layout for Code-Compliant Wiring and Gas Lines
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Solution Overview
Problem
Enclosed cargo trailers used as mobile commercial enterprises often lack proper infrastructure for MEP systems, violating building codes and posing safety risks due to inadequate electrical and gas system installations.
Innovation Solution
A frame design that includes a structural shell with properly spaced wiring joists and gas line hangers, ensuring minimum clearance and securement of electrical and gas components to meet building codes, along with a trim tray profile for passive air intake and cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cargo trailer frames are used without modifications, then the structure remains simple and cost-effective, but the electrical and gas systems cannot meet building code requirements
Solution Approach 1:
The frame is segmented into functional zones with dedicated wiring joists and gas line hangers separated from structural components. Electrical wiring is routed through specific joists with predetermined clearance, while gas lines are secured at designated hanger points, allowing each system to be installed independently according to code requirements without compromising overall frame simplicity
Solution Approach 2:
The frame design incorporates pre-positioned wiring joists and gas line hangers during manufacturing, eliminating the need for field modifications. Wiring holes are pre-drilled at correct locations with proper clearance distances, and hanger points are pre-welded or bolted to the frame, ensuring building code compliance is built-in from the start rather than added later
2Ease of operation
If electrical wiring is installed without proper clearance from exterior walls, then installation is simpler and faster, but the wiring becomes tangled and unsafe
Solution Approach 1:
Wiring joists serve as intermediary structures between the exterior wall and electrical wiring. These joists are positioned at predetermined distances from the exterior wall surface, creating a protected channel through which wiring can be safely routed. The joists act as a mediator that maintains the required clearance distance while providing a convenient pathway for wire installation
Solution Approach 2:
The frame design specifies precise dimensional parameters for wiring joist positioning, with holes drilled at exact locations that guarantee minimum clearance distances from exterior and interior surfaces. By controlling these geometric parameters during manufacturing, the system ensures wiring safety is maintained while simplifying installation - workers only need to thread wires through pre-positioned holes rather than measure and calculate clearance distances in the field
3Productivity
If MEP systems are installed without proper securement, then installation time and cost are reduced, but structural integrity and safety are compromised
Solution Approach 1:
Gas line hangers and wiring joists are pre-installed on the frame during manufacturing, with hangers positioned at optimal locations for securing gas lines and electrical conduits. This preliminary action ensures that during field installation, workers simply need to attach components to these pre-positioned elements rather than designing and installing support structures from scratch, maintaining both safety and productivity
Solution Approach 2:
The support functions for MEP systems are extracted from the general frame structure and embodied as dedicated, code-compliant components - separate wiring joists and gas line hangers. This extraction allows these safety-critical elements to be designed and positioned according to specific building code requirements while the rest of the frame maintains its simplicity, enabling rapid installation of secured MEP systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The frame design allows for safe and code-compliant installation of MEP systems, enhancing structural integrity and safety for both business operations and public safety, while enabling the transformation of cargo trailers into commercial kitchens or workspaces.
Implementation Method 1
a specialized trim tray profile that enables passive air intake from the external environment for the passive cooling of the interior of the unit
Implementation Method 2
a specialized trim tray profile that enables passive air intake from the external environment for the passive cooling of the interior of the unit
Implementation Method 3
joists that provide proper (e.g., at least one and one-half inch clearance on all sides) clearance between adjacent high voltage wires
Data Source
AI summary
The present invention provides a frame design for enclosed cargo trailer structures utilized as mobile commercial enterprises to protect base electrical wiring throughout the walls and ceiling of the structure, support for a mechanical wall set back or offset from the exterior walls of the structure, wherein the electrical wiring flows to and from the mechanical wall, ensures proper placement and securement of a fuel tank and gas lines along the underside of the base of the structure.