Plug Connector Ground Clamping for Solder-Free Shield Stability
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Solution Overview
Problem
Conventional methods for connecting a grounding conductor of a cable to a conductive housing in a plug connector using soldering lead to cable damage, functional degradation, and instability due to heat and external shocks.
Innovation Solution
A plug connector design that achieves electrical and physical connection between the grounding conductor and the conductive housing through clamping, eliminating the need for soldering, with a ring-shaped conductor for ground and a clamp ring to secure the cable, enhancing stability and shielding performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If soldering is used to connect the grounding conductor to the housing, then electrical connection is achieved, but cable damage and functional degradation occur due to heat
Solution Approach 1:
The patent replaces the thermal soldering process with a mechanical clamping system. The clamp ring and clamping portions provide electrical connection through direct metal-to-metal contact and mechanical pressure, eliminating the need for heat application and thus preventing heat-induced cable damage while maintaining reliable electrical connectivity.
Solution Approach 2:
The patent introduces a clamp ring as an intermediary component between the grounding conductor and the housing. This clamp ring serves as a mediator that provides both mechanical support and electrical connection, distributing the connection forces and protecting the cable from direct stress while ensuring stable electrical contact.
2Reliability
If soldering is used to connect the grounding conductor to the housing, then electrical connection is achieved, but the connection becomes vulnerable to damage from cable movement and external shocks
Solution Approach 1:
The patent employs a dynamic clamping mechanism that can accommodate movements and shocks. The clamp ring with its elastic properties and the resilient clamping portions allow the connection to flex and absorb external forces, maintaining electrical contact stability under varying mechanical conditions rather than being rigid and brittle like soldered joints.
Solution Approach 2:
The patent divides the connection system into separate functional components: the clamp ring for mechanical clamping, the clamping portions for electrical contact, and the housing for structural support. This segmentation allows each component to be optimized for its specific function, with the clamping portions providing both mechanical strength and electrical conductivity independently.
3Reliability
If soldering is used to connect the grounding conductor to the housing, then electrical connection is achieved, but the conductor for ground becomes easily separated from the housing
Solution Approach 1:
The patent merges the mechanical fastening function and the electrical connection function into a single integrated clamping system. The clamp ring and clamping portions simultaneously provide both mechanical attachment strength and electrical conductivity, creating a unified connection that resists separation better than separate soldering and mechanical fastening would provide.
Data Source
AI summary
A plug connector coupled to a receptacle connector is presented, comprising: a conductor for signals; a ring-shaped conductor for ground, the conductor for ground surrounding the conductor for signals; a ring-shaped insulator surrounding the conductor for signals and being surrounded by the conductor for ground, and insulating between the conductor for signals and the conductor for ground; a lower body; and an upper body coupled onto the lower body. The conductor for signals includes a lower portion protruding below a first portion of the top of the insulator, a middle portion inserted into a hollow portion of the first portion, and an upper portion protruding above the first portion. The conductor for ground includes a lower portion protruding below the first portion and an upper portion surrounding the first portion. The lower body includes a lower housing, such that the upper portion is accommodated in the hollow portion.