Slider-Crimp Terminal Structure for Jig-Free Wire Coupling

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Solution Overview

Problem

The existing methods for coupling a terminal to an electric wire require relatively large equipment, such as dies or jigs, which increases production costs.

Innovation Solution

A terminal design featuring a terminal body with deformable connecting tabs and a slider that is slidable between separated and overlapping positions, allowing for crimping of the terminal onto the electric wire without the need for large jigs, utilizing a narrow and wide portion with pressing portions and a sloped guide surface for stable attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional dies or jigs are used to crimp the terminal on the core wire, then reliable electrical connectivity is achieved, but production cost increases due to equipment investment

Engineering Contradiction:
Improveelectrical connectivityVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The terminal structure performs the crimping function itself through its own components. The pressing portions of the slider directly press the connecting tabs to crimp the core wire, eliminating the need for external dies or jigs. This self-service mechanism maintains reliable electrical connectivity while removing equipment investment costs.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The crimping function is extracted from the terminal body and implemented through the integrated slider mechanism. The slider with pressing portions separates the crimping action from the terminal body structure, allowing the terminal to perform crimping without requiring external equipment while maintaining connection reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

2Stability of the object's composition

If traditional dies or jigs are used for crimping, then stable attachment is achieved, but device complexity increases due to additional equipment

Engineering Contradiction:
Improveattachment stabilityVSAvoidequipment complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The slider is integrated with the terminal body to form a unified structure. The slider moves relative to the terminal body but remains part of the same device, combining the attachment and crimping functions into a single integrated component system, thereby reducing overall device complexity while ensuring stable attachment.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The slider is designed to move dynamically between a retracted position and a pressing position. This dynamic mechanism allows the terminal to transition from an attached state to a crimped state, providing stable attachment through controlled movement rather than static equipment, thus reducing device complexity.

Inventive Principle:
Principle #15Dynamics

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

Enables the coupling of terminals to electric wires without large jigs, ensuring stable attachment and reduced production costs while maintaining effective electrical connectivity.

Implementation Method 1

The terminal body includes connecting tabs that are deformable in a direction crossing an inserting direction in which the electric wire is inserted

Methodology Applied
Scientific EffectDeformation: Deformation

Implementation Method 2

The slider includes pressing portions that protrude inward and press the connecting tabs to contact the electric wire

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 3

The slider includes a sloped guide surface that is angled at an edge of a wall that defines the wide portion to spread further than the wide portion with respect to the pressing direction

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS11996644B2Terminal
Publication Date: 2024.05.28 AUTONETWORKS TECH LTD
  • US11996644B2 patent drawing
  • US11996644B2 patent drawing
  • US11996644B2 patent drawing

AI summary

A female terminal includes a terminal body and a slider displaced relative to the terminal body. The terminal body includes a connecting tab deformable in a pressing direction crossing an inserting direction in which an electric wire is inserted and contactable with the electric wire. The slider is slidable between separated and overlapping positions. The slider includes a narrow portion that protrudes inward and has a less inner dimension in the pressing direction, and a wide portion in front of the narrow portion with respect to the inserting direction and has a greater inner dimension in the pressing direction than the narrow portion. The connecting tab contacts the electric wire when the narrow portion overlaps the connecting tab at the overlapping position. The slider includes a sloped guide surface that is angled at in front of the wide portion to spread further than the wide portion toward the front.