Electrical Fitting Single Cable Retainer Tang Design
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Solution Overview
Problem
Existing electrical fittings for connecting cables to panels are mechanically complex and expensive due to multiple cable gripping tangs, making them costly to produce and difficult to manufacture.
Innovation Solution
A simplified electrical fitting with a single cable-retaining tang constructed from spring steel, featuring a flat portion and arcuate design that allows easy flexing and secure gripping of cables, reducing manufacturing costs and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple cable gripping tangs are used, then cable gripping security is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges multiple cable gripping tangs into a single integrated tang structure. The single tang is designed with specific geometric features (angled configuration, optimized dimensions) that combine the gripping functions of multiple tangs, thereby reducing device complexity while maintaining cable gripping security.
Solution Approach 2:
The patent changes the parameters of the cable retaining tang, specifically its angle and dimensions. The tang is positioned at a specific angle (e.g., 45 degrees) relative to the retainer body, and its width and length are optimized to provide adequate gripping force. This parameter optimization allows a single tang to replace multiple tangs, reducing complexity while maintaining reliability.
2Reliability
If multiple cable gripping tangs are used, then cable gripping security is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines multiple tang structures into a single integrated component that can be manufactured as one piece. This merging reduces the number of parts, simplifies the manufacturing process, and lowers production costs while maintaining the cable gripping security through optimized single-tang design.
Solution Approach 2:
The patent extracts the essential gripping function from multiple complex tangs and concentrates it into a single simplified tang structure. By taking out only the necessary gripping elements and eliminating redundant components, the design achieves cost-effective manufacturing while preserving cable retention reliability.
3Reliability
If a complex cable retainer with multiple tangs is used, then cable gripping security is improved, but ease of cable insertion deteriorates
Solution Approach 1:
The patent optimizes the parameters of the single cable retaining tang, including its angle, width, and position. The tang is designed at a specific angle (e.g., 45 degrees) and with optimized dimensions that allow cables to be inserted easily while still providing secure gripping. This parameter optimization resolves the contradiction between ease of insertion and gripping security.
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 simplified design enables easier and more economical production while providing secure cable retention, enhancing flexibility and grip, thus improving the efficiency and cost-effectiveness of cable connection to panels.
Implementation Method 1
The cable retainer is constructed of spring steel and includes a flat portion and an arcuate portion, enabling it to easily flex while securely gripping and holding an electrical cable
Data Source
AI summary
An electrical fitting having an improved arrangement on the trailing end for securing electrical cables thereto. A connector body having a cavity in the trailing end includes a cable retainer secured therein. The cable retainer includes a substantially tubular body and is constructed of spring steel. The tubular body includes a flat portion and an arcuate portion. A single cable retaining tang extends inwardly from the flat portion. Providing the cable retaining tang on the flat portion of the tubular body enables a straight bend line between the cable retaining tang and the tubular body, thereby allowing the tang to flex easily. The cable retaining tang includes a wide cable gripping surface to enable secure gripping of an electrical cable as it is inserted within the trailing end of the fitting.