Terminal for Connector Without Peeling Electric Wires
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Solution Overview
Problem
Conventional electric wire connectors face issues with reduced axial tension resistance and easy separation or deviation due to cumbersome connection methods and inadequate structural design, particularly with the cutting portion not being perpendicular to the core wire and the outer erection piece being pushed outward, leading to weak connection forces and increased contact resistance.
Innovation Solution
A terminal design featuring a central erection piece with downward and outward inclined cutting portions, paired with outer erection pieces having symmetrically inclined cutting portions, a recessed central piece for enhanced core wire connection, and a projection to stabilize the core wire, ensuring a right-angle cutting force and maximizing connection area without deforming the outer erection piece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the cutting portion is arranged at an inclined angle not making a right angle to the central line of the core wire, then the structure is simpler, but the cutting force cannot be maximized
Solution Approach 1:
The cutting portion is designed with a specific inclined angle parameter that optimizes the cutting force. By changing the angular parameter of the cutting portion to form a right angle with the central line of the core wire, the cutting force is maximized while maintaining manufacturability.
2Strength
If the outer erection piece has a small width area, then the structure is simpler, but it is pushed outward by the core wire causing weak connection force
Solution Approach 1:
The outer erection piece is designed with non-uniform thickness distribution, having different width areas at different locations. The width area is increased at the position where the core wire contacts to prevent being pushed outward, while other areas maintain simpler structure. This local quality enhancement maximizes connection force without excessive complexity.
3Ease of operation
If the erection piece is allowed to open to accommodate core wire, then the core wire enters easily, but the connection force becomes weak and contact resistance increases
Solution Approach 1:
The erection piece is segmented into multiple sections with different functions: an upper section that allows core wire entry and a lower section that provides stable connection. The core wire connector is also segmented to work with the erection piece segments, ensuring easy entry while maintaining strong connection and low contact resistance.
4Productivity
If the connection method uses traditional peeling and twisting, then the connection is traditional and familiar, but it is cumbersome and takes time
Solution Approach 1:
The connector is pre-configured with cutting portions and an erection piece structure that automatically performs the cutting and positioning actions when the wire is inserted. This preliminary preparation of the connector structure eliminates the need for manual peeling and twisting operations, significantly increasing connection speed while the complex structure is contained within the pre-assembled connector.
Data Source
AI summary
Provided is a terminal for an electric wire connector including: a central erection piece configured to have cutting portions inclined downward and outward on both sides of its upper portion; a pair of outer erection pieces configured to be spaced apart at a desired interval on both sides of the central erection piece and have cutting portions that are inclined downward on the upper portion; a connector configured to connect the central erection piece and lower portions of the pair of outer erection pieces; an electrical wire entry portion configured to be a space through which the cutting portions face each other and be a path under which the electrical wire enters; and a core wire connector configured to be arranged on the lower portion communicating with the electric wire entry portion and be a space to connect the central erection piece and the outer erection piece.