FFC Fixing Assembly with Push-Pull Connector for Secure Signal Transmission
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Solution Overview
Problem
The existing fixing assemblies for flex flat cables (FFCs) and cable connectors are limited by the difficulty in replacing FFCs of insufficient length, require additional components and procedures, and often result in poor signal quality due to loose connections caused by movement.
Innovation Solution
A fixing assembly that includes a cable connector with a shell, terminals, and a push-pull or compressing device to securely engage and disengage the FFC, using insulating adhesives and protective covers to ensure stable connections, allowing for easy replacement and reduced material costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the FFC is soldered directly onto the PCB of the connector, then the connection is firm, but the application is greatly limited and replacement is difficult
Solution Approach 1:
The invention divides the connector into separate components: a connector body and a removable fixing assembly. The FFC is soldered to the fixing assembly rather than directly to the PCB, allowing the fixing assembly to be removed and replaced independently while leaving the soldered connection intact. This segmentation enables both firm connection and easy replacement.
2Reliability
If the FFC is soldered to the PCB, then signal transmission is stable, but additional components and manufacturing procedures are required
Solution Approach 1:
The invention merges the FFC connection function with a removable fixing assembly that integrates the soldering interface and retention mechanism. This consolidation reduces the need for separate mounting brackets, adhesive layers, and complex retention structures, simplifying the overall device while maintaining stable signal transmission through the soldered joint.
3Reliability
If the connector is fixed to the base with additional components, then the connection is secure, but the manufacturing process requires more procedures
Solution Approach 1:
The FFC is pre-soldered to the fixing assembly during assembly of that component, rather than requiring separate soldering operations during final connector installation. This preliminary action allows the soldering to be performed in a controlled setting before the fixing assembly is attached to the connector body, simplifying the overall manufacturing process while ensuring secure connection.
4Ease of operation
If the FFC undergoes multiple movements and insertions, then flexibility is achieved, but the soldered connection becomes loose causing poor signal quality
Solution Approach 1:
By segmenting the design so that the FFC is soldered to the removable fixing assembly rather than the stationary connector body, the invention allows the fixing assembly to move and flex with the cable while the soldered joint remains stress-free. The removable assembly absorbs mechanical stress, protecting the soldered connection from loosening during repeated movements and insertions.
Data Source
AI summary
A fixing assembly of a cable connector and a flexible cable is provided. The flexible cable includes a plurality of conductors. The cable connector includes a shell, a plurality of terminals arranged in the shell, and a push-pull device configured to activate the flexible cable to move toward the plurality of terminals so as to conduct the plurality of terminals through the plurality of conductors of the flexible cable.