Cable Lug Predetermined Breaking Location Crash Deformation
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Solution Overview
Problem
Conventional cable shoes lack a mechanism to manage deformation and rotation during crashes, which can lead to cable damage and loss of functionality, particularly in vehicle engine compartments where components may collide.
Innovation Solution
Incorporating a predetermined breaking location, designed as a cutout or material weakening, positioned between the rotation-prevention element and the fastening element, allows the cable shoe to deform and rotate during crashes, preventing collision with nearby components while maintaining electrical connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the cable shoe is made rigid to maintain structural strength, then strength is improved, but the cable shoe cannot deform or rotate during crashes, leading to cable damage and loss of functionality
Solution Approach 1:
The cable shoe is divided into distinct functional segments: a rigid fastening element for structural strength, a rotation-prevention element for operational stability, and a predetermined breaking location that allows controlled deformation. This segmentation enables different parts to serve different functions - maintaining strength where needed while allowing deformation in designated areas during crash events
Solution Approach 2:
A predetermined breaking location is designed and positioned in advance between the fastening element and rotation-prevention element. This pre-planned weak point ensures that during a crash, the cable shoe will deform or rotate in a controlled manner at this specific location, preventing uncontrolled damage to the cable or surrounding components
2Reliability
If the cable shoe is made flexible to allow deformation during crashes, then reliability during crash is improved, but structural strength and stability during normal operation deteriorate
Solution Approach 1:
Different parts of the cable shoe have different mechanical properties: the fastening element and rotation-prevention element maintain high structural strength for normal operation, while the predetermined breaking location is designed with reduced strength to allow controlled deformation during crash. This local differentiation of material properties enables the cable shoe to be strong where needed and flexible where required
3Stability of the object's composition
If the rotation-prevention element is designed to fully prevent rotation, then operational stability is improved, but the cable shoe cannot rotate during crashes to avoid collision with nearby components
Solution Approach 1:
The rotation-prevention element is designed to provide stable rotational constraint during normal operation, but the predetermined breaking location allows this constraint to be released in a controlled manner during crash events. This dynamic behavior enables the cable shoe to transition from a rotationally constrained state during operation to a rotationally flexible state during crash, adapting to different operational conditions
Data Source
AI summary
A cable shoe having a predetermined breaking location and an arrangement of a cable shoe connected to a cable-shoe end of a cable.