Terminal Connecting Piece Deformation Guide
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Solution Overview
Problem
The existing methods for connecting a terminal to an electric wire require large equipment, increasing production costs and risking buckling of the connecting piece due to excessive force application.
Innovation Solution
A terminal design featuring a deformable connecting piece with a protrusion that reduces the contact area with the slider, allowing for reduced force application and minimizing buckling, while also eliminating the need for large jigs like dies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large die and jig are used to crimp the terminal on the electric wire, then the terminal can be reliably connected to the wire, but the production cost increases due to equipment investment
Solution Approach 1:
The invention extracts the crimping function from the large die and jig system and integrates it into the terminal body itself through the deformable connecting piece. The connecting piece performs the crimping action directly on the electric wire without requiring external crimping equipment, thereby eliminating the need for expensive dies and jigs while maintaining reliable electrical connection.
Solution Approach 2:
The terminal body serves itself by incorporating the deformable connecting piece that can independently crimp the electric wire. The connecting piece deforms under insertion force to create its own mechanical and electrical connection with the wire, eliminating the need for external service equipment and reducing manufacturing costs.
2Reliability
If excessive force is applied to deform the connecting piece toward the electric wire, then the terminal can be securely connected, but the connecting piece may buckle in a different direction
Solution Approach 1:
The invention applies local quality by providing guide surfaces at specific locations on the terminal body that guide the deformation of the connecting piece. These guide surfaces ensure that the connecting piece deforms only in the intended direction toward the electric wire, preventing buckling in unwanted directions while maintaining connection security.
Solution Approach 2:
The guide surfaces act as intermediaries between the insertion force and the connecting piece deformation. They mediate the force application process by directing the force along the correct path, ensuring the connecting piece deforms properly toward the electric wire without buckling, thereby maintaining both connection security and structural stability.
3Reliability
If the contact area between the slider and connecting piece is large, then the slider can effectively press the connecting piece against the wire, but excessive force is required to move the slider
Solution Approach 1:
The guide surfaces perform preliminary action by pre-positioning and pre-aligning the connecting piece before the slider applies pressing force. This preliminary guidance ensures that when the slider moves, the connecting piece is already in the correct position and orientation, allowing effective pressing with minimal force required for slider movement.
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 terminal is effectively connected to the electric wire with reduced force and lower production costs, minimizing buckling and precision alignment requirements.
Implementation Method 1
a deformable connecting piece that extends in an extending direction... The connecting piece is deformed toward the electric wire and pressed against the electric wire
Data Source
AI summary
A female terminal 12 includes a terminal body 15 and a slider 16. The terminal body 15 includes an upper connecting piece 18A and a lower connecting piece 18B connected to a core wire 13 of an electric wire 11. The slider 16 is movable in a front-rear direction relative to the terminal body 15. The slider 16 includes an upper abutting portion 25A and a lower abutting portion 25B. The upper connecting piece 18A includes an upper protrusion 51A that abuts against the upper abutting portion 25A. The lower connecting piece 18B includes a lower protrusion 51B that abuts against the lower abutting portion 25B.