Controlled Shear Point Wiring Adapter for Traffic Control Boxes
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Solution Overview
Problem
Control boxes in transportation and other industries face significant challenges with wiring damage due to physical stress, leading to costly and labor-intensive repairs, especially when exposed wires pose electrical hazards and standing water compromises the integrity of the wiring system.
Innovation Solution
A controlled shear point wiring adapter with a quick release mechanism, featuring a top and bottom segment with conductor lugs and alignment mechanisms, anchored to the concrete floor, and equipped with a spring and trip wire system to manage stress and separate the segments during accidents, ensuring the shear point occurs at the adapter, reducing damage and safety risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid connection is used to connect terminals, then the connection stability and signal transmission are improved, but the vulnerability to damage from applied forces increases
Solution Approach 1:
The adapter is divided into a top segment and a bottom segment that can separate from each other. The bottom segment remains anchored to the concrete floor while the top segment can be quickly released and removed. This segmentation allows the connection to be rigid during normal operation but enables separation when forces are applied, resolving the contradiction between connection stability and resistance to applied forces.
2Object-affected harmful factors
If wires are buried in ground or run behind walls, then the protection from physical and environmental abuse is improved, but the accessibility for repair when damaged worsens
Solution Approach 1:
The top segment of the adapter is extracted as a separate, removable component that can be quickly detached from the bottom segment. This allows the wires connected to the top segment to be accessed and replaced without disturbing the buried or hard-to-reach portion of the wiring system. The bottom segment remains in place with wires intact, while only the top segment needs to be accessed for repairs.
3Ease of operation
If the wiring system is stressed, then the quick release function separates the top segment from the bottom segment, but the exposed power wires create electrical hazards
Solution Approach 1:
The top segment is designed to nest within or alongside the bottom segment during normal operation, with both segments forming a unified connection structure. When separation occurs, the top segment can be contained within the footprint of the bottom segment or guided into a safe position, preventing exposed wires from creating electrical hazards while maintaining the quick release functionality.
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 solution effectively controls the shear point of the wiring system, minimizing damage and repair time, while maintaining electrical safety by containing the exposed wires within the adapter and preventing accidental contact, even in wet conditions.
Implementation Method 1
A spring is positioned between the top segment and the bottom segment
Implementation Method 2
The top segment and bottom segment include conductor lugs and an alignment mechanism to facilitate proper connectivity and alignment between the top and bottom segment
Data Source
AI summary
A wiring adapter is provided which controls the shear point for a wiring system in a traffic control box and other electrical panels. The wiring adapter includes a bottom segment which is securely mounted in the control box. Incoming wires to the control box are connected to the bottom segment. The top segment of the wiring adapter includes connections for wires running from the wiring adapter to the power or control elements in the control box. The wiring adapter uses a quick release retention mechanism to secure the top segment to the bottom segment. When a triggering event occurs, the quick release mechanism separates the top segment from the bottom segment to ensure that the shear point for the wiring system occurs at the wiring adapter.