Crimp Terminal Structure to Prevent FPC and FFC Cutting

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Solution Overview

Problem

Existing electrical connection terminals for FPCs or FFCs are prone to cutting the flexible connections due to the free movement of their front ends, necessitating the replacement of the entire assembly.

Innovation Solution

The electrical connection terminal features a crimping part with conductive teeth for electrical connection and fixing teeth to secure the terminal to the flexible connection piece, preventing movement and potential cutting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the front end of the crimping part is left free for easy assembly, then the assembly process is simplified, but the flexible electrical connection piece is prone to being cut by the sharp edge

Engineering Contradiction:
Improveassembly processVSAvoidcutting of flexible connection
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The crimping part is segmented into two functional zones: conductive teeth for electrical connection and fixing teeth for mechanical anchoring. This segmentation allows the front end to be fixed to the insulator while maintaining ease of assembly through the separate crimping process

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fixing teeth act as an intermediary element between the crimping part and the insulator. By crimping onto the insulator, they mediate the connection to prevent the sharp edge from cutting the flexible connection piece while maintaining assembly simplicity

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If fixing teeth are added to crimp onto the insulator, then the front end is secured and cutting is prevented, but the device structure becomes more complex

Engineering Contradiction:
Improveconnection stabilityVSAvoidcrimping part structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The fixing teeth and conductive teeth are merged into a single integrated crimping part structure. This combining approach achieves both electrical connection and mechanical fixing functions without requiring separate components, thus preventing cutting while minimizing structural complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The crimping part is designed with multi-functionality: the conductive teeth provide electrical connection while the fixing teeth provide mechanical anchoring. This universal design achieves both reliability and simplicity by having one component perform multiple functions

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250062555A1Electrical Connection Terminal and Electrical Connection Assembly
Publication Date: 2025.02.20 TYCO ELECTRONICS TECHNOLOGY (SIP) CO LTD
  • US20250062555A1 patent drawing
  • US20250062555A1 patent drawing
  • US20250062555A1 patent drawing

AI summary

An electrical connection terminal includes a crimping part having a base with a front end and a rear end and a pair of opposite sides, a plurality of conductive teeth connected to the opposite sides of the base, and a plurality of fixing teeth connected to the opposite sides at the front end of the base. The electrical connection terminal has a main body connected to the rear end of the base. The conductive teeth pierce an insulator of a flexible electrical connection piece and are crimpable onto a conductor of the flexible electrical connection piece to be electrically connected to the flexible electrical connection piece. The fixing teeth pierce the insulator of the flexible electrical connection piece and are crimpable onto the insulator of the flexible electrical connection piece to fix the front end of the base to the flexible electrical connection piece.