High-Current Plug-In Connector Silver Cap Oxidation Resistance
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Solution Overview
Problem
Existing high-current plug-in connectors experience increased contact resistance over time, leading to performance deterioration and safety risks for equipment and personnel due to heat generation and oxidation issues.
Innovation Solution
A high-current plug-in connector component featuring a pure copper plug body, a pure silver cap, and elastic rubber, along with a preset soldering tin for cable connection, which reduces contact resistance and ensures stable performance by minimizing oxidation and enhancing electrical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing high-current plug-in connectors are used, then initial electrical connection is established, but contact resistance increases exponentially over time leading to performance deterioration
Solution Approach 1:
The patent employs a composite contact structure combining a copper base material with a silver plating layer. The copper provides high electrical conductivity and structural integrity, while the silver plating offers superior oxidation resistance and maintains low contact resistance over time. This composite material approach resolves the contradiction by achieving both initial reliability and long-term durability.
Solution Approach 2:
The patent optimizes the contact resistance parameter by controlling the silver plating thickness and copper base properties. By adjusting these material parameters, the connector achieves initially low contact resistance that remains stable over time, preventing the exponential increase in resistance that occurs with conventional connectors.
2Power
If high-current operation is performed, then power transmission is achieved, but heat generation increases causing safety risks
Solution Approach 1:
The copper-silver composite contact structure reduces electrical resistance, thereby reducing I²R heat generation during high-current operation. The silver plating's superior conductivity minimizes energy loss and heat production, enabling safe high-current transmission.
Solution Approach 2:
The patent converts the potential harmful effect of high current into a beneficial outcome by using the high-current operation itself to demonstrate the effectiveness of the low-resistance contact design. The controlled electrical connection allows high current flow while the optimized material composition ensures heat generation remains within safe limits.
3Ease of manufacture
If conventional connector materials are used, then manufacturing is simplified, but oxidation occurs increasing contact resistance over time
Solution Approach 1:
The silver-plated copper construction balances manufacturing feasibility with oxidation resistance. The copper base is easily manufactured using conventional processes, while the silver plating is applied through standard electroplating techniques. This composite structure prevents oxidation without significantly complicating the manufacturing workflow.
Solution Approach 2:
The patent applies silver plating specifically to the contact surfaces where oxidation would most adversely affect performance, while the bulk copper material maintains its structural and conductive properties. This localized quality enhancement protects against oxidation at critical interfaces without requiring complete material replacement.
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 significantly reduces contact resistance, doubles current carrying capacity, and maintains reliable performance over time, addressing the safety concerns associated with existing connectors.
Implementation Method 1
the performance of the existing high-current plug-in connectors tends to gradually deteriorate over time, and the contact resistance of the high-current plug-in connectors doubles or even increases by 10 times so that the heat generation of connecting part increases
Implementation Method 2
an elastic rubber arranged in the center hole
Implementation Method 3
a silver cap welded to an outer side of an opening of the center hole
Data Source
AI summary
The present invention relates to a high-current plug-in connector component and a high-current plug-in connector. The high-current plug-in connector component comprises a plug body provided with a center hole and a cable connecting hole in an inner cavity thereof, a silver cap which is welded to an outer side of an opening of the center hole, an elastic rubber arranged in the center hole, and a preset soldering tin arranged at a bottom of an inner side of the cable connecting hole, wherein the plug is slotted into three to six petals so that the plug is expanded to form an expansion plug; a head of the high-current plug-in connector component and a heel part of the plug are in a plugging engagement with a socket component of a corresponding plug-in connector, so that the high-current plug-in connector component is in electrical contact with corresponding plug-in connector component.