Connector Terminal With Inner Trenches for Corrosion Protection
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Solution Overview
Problem
Existing methods for connecting a connector terminal to an electric wire require costly molding machines and resin, increasing facility and manufacturing costs, and do not effectively prevent corrosion at the connection point, especially when dissimilar metals are connected.
Innovation Solution
A connector terminal design featuring a barrel portion with trenches or projections on its inner surface, allowing for crimping without breaking the covering, which maintains electrical continuity and prevents corrosion by ensuring the conductor is securely crimped without exposing it, thus eliminating the need for resin molding and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a molding machine and resin are used to cover and protect the terminal connection portion, then the anticorrosion property is improved, but the facility cost and manufacturing cost increase
Solution Approach 1:
The patent extracts and eliminates the molding machine and resin components from the connection process. Instead of using external molding equipment and resin materials, the invention uses the barrel portion itself with integrated trenches to provide protection, thereby removing the need for costly molding facilities and resin materials while maintaining corrosion protection functionality
Solution Approach 2:
The barrel portion with trenches on its inner surface provides self-protection functionality. The trenches enable the barrel to firmly crimp the conductor and maintain covering integrity without requiring external resin molding, making the protective function inherent to the connector structure itself rather than dependent on additional materials or equipment
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 connector terminal achieves reliable connection and superior anticorrosion properties without the need for molding machines or resin, preventing bimetallic corrosion and reducing manufacturing costs while ensuring electrical continuity.
Implementation Method 1
the conductor covered with the covering bites into the trench or projection formed in an inner surface of the barrel portion
Implementation Method 2
the barrel portion includes a sealing piece that seals a forefront of the conductor when the conductor is crimped
Data Source
AI summary
In a connector terminal connected to an electric wire in which a conductor is covered with an outer cover, the terminal includes a barrel portion that is exposed from the outer cover and is to be crimped to the conductor coated with a covering, and an electrical connection portion electrically connected to a mating terminal, wherein a trench or a projection that is provided along a direction perpendicular to an axis of the electric wire are formed in an inner surface of the barrel portion, and a depth of the trench or a projecting dimension of the projection is made smaller than a covering thickness of the covering.