Ground Terminal Folded Structure for Easy Wire Removal
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Solution Overview
Problem
Existing ground terminals face issues with wire removal during disassembly due to weak easily breakable portions, which can lead to unexpected deformation or failure to break when the vehicle is disassembled, affecting the wire's extending direction and removal efficiency.
Innovation Solution
A ground terminal design featuring a plate-like shape with a base portion and a wire connecting portion, where a folded portion is formed by folding in a direction intersecting the wire's extending direction, incorporating a protrusion and contact portion to ensure strength and easy wire removal, with the protrusion and contact portion preventing position shifts and maintaining the wire's direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the easily breakable portion is made weak in strength to enable wire removal, then the wire can be separated during disassembly, but the easily breakable portion may unexpectedly deform when the wire is pulled during assembly
Solution Approach 1:
The patent applies local quality by creating a localized weak portion only at the folded portion of the base end, while the rest of the separating core wire barrel forming portion maintains normal strength. This is achieved by forming a groove or reducing the thickness specifically at the folded portion, enabling it to break preferentially during wire removal while the body and other parts remain strong enough to prevent unexpected deformation during assembly.
2Strength
If the strength of the base end is enhanced to prevent deformation, then the wire pulling force is resisted, but the easily breakable portion is not broken during disassembly
Solution Approach 1:
The patent creates a localized weak portion only at the folded portion of the base end by forming a groove or reducing thickness in that specific area. This allows the folded portion to break preferentially during wire removal while the rest of the separating core wire barrel forming portion maintains sufficient strength to resist wire pulling forces during assembly, thus resolving the contradiction between strength and ease of wire removal.
3Ease of operation
If the easily breakable portion is designed to break during disassembly, then wire removal is enabled, but the wire's extending direction may change from the original one
Solution Approach 1:
The patent localizes the weak portion specifically at the folded portion of the base end, ensuring that only this specific area breaks during wire removal. The protrusion and contact portion are designed to maintain the wire's extending direction by preventing lateral displacement, while the localized breakage at the folded portion enables wire removal without affecting the overall direction precision.
Solution Approach 2:
The patent incorporates a protrusion and contact portion that preliminarily constrain the wire's position and extending direction before wire removal occurs. These features prevent lateral displacement and maintain directional precision during assembly, and the constraint is released only when the folded portion breaks during intentional wire removal.
Data Source
AI summary
A ground terminal 10, 10A is plate-like and provided with a base portion 11 to be fixed to a body 80, a wire connecting portion 12 arranged to be placed on a plate surface of the base portion 11, and a folded portion 13 shaped by being folded in a direction intersecting an extending direction of a wire 90 from the wire connecting portion 12 and connecting the base portion 11 and the wire connecting portion 12. Either one of the base portion 11 and the wire connecting portion 12 includes a protrusion 25, 25A projecting toward the other. The other includes a contact portion 32 facing the protrusion 25, 25A to be able to butt against the protrusion 25, 25A in the extending direction.