Wedge Cable Connector Grounding Device
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Solution Overview
Problem
Conventional cable connectors experience poor contact and loose fitting due to the small diameter of the grounding wire, leading to ineffective grounding and potential disconnection when subjected to force, as the wire glides along smooth arc-shaped slots, resulting in inadequate electrical resistance and grounding.
Innovation Solution
A wedge-shaped cable connector design featuring a spirally conjunct seat with opposing concave slots, a position limiting groove, and a cambered surface, combined with a packing unit that secures the wire through a locking mechanism and wedge crest lines to ensure longitudinal and transverse wedging, enhancing contact and tightness regardless of wire diameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lead wire diameter is smaller than the arc-shaped slots, then the lead wire can pass through the slots easily, but poor contact is caused and grounding effect is not achieved
Solution Approach 1:
The patent applies local quality by creating a position limiting groove with specific geometric features (concave camber, wedge crest line) at the bottom of the arc-shaped slot. This localized structural modification ensures that the lead wire makes full surface contact at the groove bottom rather than point contact, improving grounding quality without affecting wire insertion ease.
2Ease of operation
If the arc-shaped slot surface is flat and smooth, then the lead wire can pass through easily, but resistance decreases and poor tightness occurs when subjected to force
Solution Approach 1:
The patent introduces a position limiting groove with a concave cambered surface at the bottom of the arc-shaped slot. This localized modification creates a region of increased friction and mechanical interlocking where the lead wire contacts the groove bottom, providing resistance and tightness while maintaining smooth walls elsewhere for easy wire passage.
Solution Approach 2:
The patent employs a concave cambered surface (curved geometry) at the bottom of the position limiting groove. This curved surface design increases contact area and friction between the lead wire and groove, enhancing mechanical strength and resistance to pulling forces while maintaining the overall smooth arc-shaped slot structure.
3Ease of operation
If the lead wire is pulled and dragged along the arc-shaped slot, then the wire can be inserted, but poor tightness and clearance occur leading to disconnection
Solution Approach 1:
The patent incorporates a position limiting groove at the bottom of the arc-shaped slot that preliminarily positions the lead wire before final tightening. The groove's geometric features (concave camber, wedge crest line) pre-establish a stable contact region that prevents wire displacement during insertion and subsequent pulling forces.
Solution Approach 2:
The patent creates a localized position limiting groove with enhanced friction characteristics at the bottom of the arc-shaped slot. This localized structural feature provides mechanical interlocking and stabilizes the lead wire position, preventing clearance and disconnection while maintaining smooth walls for easy insertion.
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 secures the grounding wire, ensuring reliable electrical contact and resistance, preventing disconnection and improving the overall grounding efficiency by utilizing the wedge crest lines and position limiting groove to maintain wire position and apply transverse wedging force.
Implementation Method 1
A wedge crest line is defined at a section of connection between the concave camber and the position limiting groove. The wedge crest lines are used to wedge the lead wire transversally and further tighten the lead wire.
Implementation Method 2
the arc-shaped slot 7 is a groove of which the surface is flat and smooth, so the resistance resulting from the lead wire 6 relatively decreases. When being subject to a force and pulled and dragged, the lead wire 6 glides along the arc-shaped slot 7
Data Source
AI summary
A wedge of a cable connector grounding device includes a body. One side of the body is formed with a spirally conjunct seat inside which a concave spirally conjunct slot is formed. Two concave slots opposite to each other are formed. At the bottom of spirally conjunct slot, a position limiting groove is formed from the concave slots towards the center and a concave camber is formed along the circumferential wall toward the center. A wedge crest line is defined at a section of connection between the concave camber and the position limiting groove. A packing unit is provided and spirally connected to the spirally conjunct slot. The packing unit may be used to tighten the lead wire passing through the position limiting groove for achievement of the longitudinal position limiting. The wedge crest lines are used to wedge the lead wire transversally and tighten the lead wire.