Flexible Circuit Cable Connection Structure for Hinge Passage

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional connectors for flexible circuit cables often result in poor signal transmission due to insecure connections, which can be detached by external forces, and the zero insertion force structure complicates the connector design and increases manufacturing costs.

Innovation Solution

A connection structure that uses a soldering layer to bond a flexible circuit cable to the connector's soldering sections, featuring metal conductive terminals and a flexible circuit cable with finger pad conductive contacts and a shielding layer, allowing for secure electrical connection and reduced space requirements, facilitating passage through hinges.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the flexible circuit cable is directly inserted into the connector, then the connector structure is simple, but the connection is poor and the cable may detach under external force

Engineering Contradiction:

Improveconnector structureVSAvoidconnection stability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The flexible circuit cable is divided into multiple individual bundling sections (first bundling section, second bundling section, etc.), each occupying less space and allowing independent routing. This segmentation enables better connection stability while maintaining a relatively simple connector structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cable soldering sections are pre-formed on the connector housing at the flexible circuit cable connection port, preparing the bonding interface in advance. This preliminary preparation ensures reliable soldering connections without requiring complex assembly structures.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If a zero insertion force structure is used to fix the flexible circuit cable, then the connection stability is improved, but the connector structure becomes complicated and manufacturing cost increases

Engineering Contradiction:

Improveconnection stabilityVSAvoidconnector structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical zero insertion force structure with a soldering-based bonding system. The cable soldering sections are bonded to the circuit board using soldering material, substituting mechanical retention with metallurgical bonding, which provides equivalent or superior stability without the complexity of ZIF mechanisms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The connection method transitions from mechanical engagement to thermal-metallurgical bonding. By changing the bonding mechanism parameter from mechanical interlocking to soldering adhesion, the patent achieves reliable fixation without requiring complex mechanical structures.

Inventive Principle:

Principle #35Parameter changes

3Device complexity

If the flexible circuit cable is bundled as a single unit, then the connection is simple, but the space required to pass through the hinge is increased

Engineering Contradiction:

Improvecable arrangementVSAvoidspace for hinge passage

Core Design Contradiction:

Device complexityVSArea of stationary object

Solution Approach 1:

The flexible circuit cable is segmented into multiple individual bundling sections (first bundling section, second bundling section, third bundling section, etc.), each occupying less space. This segmentation allows the cable to pass through the hinge opening more easily while maintaining organizational simplicity through the bundling structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transitions from a single large bundled cable to multiple smaller segmented sections that can be arranged in different spatial configurations. This dimensional reorganization allows the cable sections to pass through the hinge opening in a more space-efficient manner.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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

This solution ensures stable signal transmission, reduces manufacturing costs, and allows for more flexible circuit board design with reduced thickness and weight, while maintaining secure connections even under external forces.

Implementation Method 1

uses a soldering layer to bond a flexible circuit cable to cable soldering sections of a connector

Methodology Applied

Scientific EffectSoldering: Soldering

Data Source

PatentUS8753143B2Connection structure for flexible circuit cable

Publication Date: 2014.06.17 ADVANCED FLEXIBLE CIRCUITS

AI summary

A connection structure for a flexible circuit cable includes a flexible circuit cable that has a flexible circuit substrate having a first end bonded to a soldering stage of the connector housing with first finger pad conductive contacts of conductive lines of the flexible circuit cable respectively corresponding to cable soldering sections of metal conductive terminals of the connector. A soldering layer is formed between a metal coating layer of the first finger pad conductive contact of each of the conductive lines and the cable soldering section of the corresponding metal conductive terminals to set the conductive lines of the flexible circuit cable in electrical connection with the metal conductive terminals of the connector.