Crimp Terminal Bent Part Prevents Interference
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Solution Overview
Problem
Existing electric wire terminals often experience undesired deformation during crimping, leading to interference issues with terminal accommodating parts due to protruding parts, which can hinder assembly processes.
Innovation Solution
An electric wire with a terminal and a terminal crimping apparatus that features a crimp terminal with a bent part on its bottom face, positioned closer to the center axis, and a crimping apparatus with inclined surfaces to prevent deformation and ensure proper alignment, thereby preventing interference with terminal accommodating parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a crimp terminal is crimped onto an electric wire, then electrical connection is established, but deformation of the crimp terminal may occur causing it to interfere with terminal accommodating parts
Solution Approach 1:
The bent part is formed on the bottom face of the electric wire connection part before the crimping process. This preliminary shaping ensures that during crimping, the rear end of the bottom face naturally aligns closer to the center axis, preventing deformation that would cause interference with terminal accommodating parts while maintaining reliable electrical connection.
Solution Approach 2:
A bent part is specifically formed only on the bottom face of the electric wire connection part, creating a localized structural feature. This local modification allows the rear end of the bottom face to be positioned closer to the center axis without affecting the overall crimping function or electrical connection reliability, thus preventing interference with terminal accommodating parts.
2Ease of manufacture
If the crimp terminal is designed with standard geometry, then manufacturing is simple, but the rear end may project and interfere with terminal accommodating parts
Solution Approach 1:
Instead of redesigning the entire crimp terminal geometry, a bent part is formed only on the bottom face of the electric wire connection part. This localized structural modification achieves the desired alignment (rear end closer to center axis) while maintaining the overall simple geometry and ease of manufacture of the crimp terminal.
3Strength
If the crimp terminal is crimped tightly onto the electric wire, then connection strength increases, but deformation and projection may occur
Solution Approach 1:
The bent part is formed on the bottom face before crimping, creating a pre-positioned structural feature. During tight crimping, this bent part ensures the rear end of the bottom face aligns closer to the center axis, allowing strong connection without deformation-induced projection that would interfere with terminal accommodating parts.
Data Source
AI summary
An electric wire with a terminal includes: an electric wire; and a crimp terminal including a terminal connection part on a front side and an electric wire connection part on a rear side, the terminal connection part configured to be electrically connected to a counterpart terminal, the electric wire connection part being wound around and crimped onto the electric wire, in which a bent part is formed on a bottom face of the electric wire connection part, the bent part being bent toward a side for causing a rear end of the bottom face to be closer to a center axis of the electric wire connection part.