Plastic Carrier for Flexible Printed Circuit Signal Isolation
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Solution Overview
Problem
Existing methods for connecting flexible printed circuits (FPCs) to printed circuit boards (PCBs) often result in signal interference due to the use of metal components and require additional securing mechanisms, which can complicate assembly and disassembly.
Innovation Solution
A plastic carrier with contacting and latching members is used to secure the FPC to the PCB, utilizing elastic pieces for electrical connection and latching members that deform to facilitate easy assembly and disassembly without the need for additional securing components, preventing signal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal components are used to connect FPC to PCB, then electrical connection is achieved, but signal interference occurs
Solution Approach 1:
The patent introduces a plastic carrier as an intermediary component between the FPC and PCB. This carrier holds elastic pieces that make electrical contact with both the FPC and PCB, enabling electrical connection without direct metal-to-metal contact that causes signal interference. The plastic material acts as a non-interfering mediator that transmits electrical signals cleanly.
Solution Approach 2:
The patent replaces traditional metal mechanical connection systems with a plastic-based system using elastic pieces. Instead of relying on metal clips or connectors that cause signal interference, the invention uses elastomeric materials to achieve both mechanical attachment and electrical connection, substituting the harmful mechanical metal system with a beneficial plastic-based system.
2Stability of the object's composition
If additional securing mechanisms are used to connect FPC to PCB, then connection stability is improved, but assembly complexity increases
Solution Approach 1:
The patent merges multiple functions into a single integrated plastic carrier component. The carrier simultaneously provides structural support, holds the elastic pieces for electrical connection, and incorporates latching members for secure attachment. This consolidation eliminates the need for separate securing mechanisms, reducing assembly complexity while maintaining connection stability.
Solution Approach 2:
The plastic carrier serves multiple functions: it acts as a structural support element, an electrical connection holder through the elastic pieces, and a securing mechanism through its latching members. This multi-functional design eliminates the need for additional dedicated securing components, simplifying the overall assembly while ensuring stable connection.
3Strength
If traditional connection methods are used, then secure connection is achieved, but disassembly becomes difficult
Solution Approach 1:
The patent employs dynamic latching members that can transition between locked and unlocked states. The latching members are designed to engage securely with the PCB during assembly, providing strong connection strength. However, they can be easily released by applying a simple releasing force, enabling easy disassembly without compromising the strength of the connected state.
Solution Approach 2:
The latching members utilize changes in their mechanical state parameters to achieve both strong connection and easy disassembly. During assembly, the latching members deform to engage with the PCB, creating a secure connection. For disassembly, a simple force changes their deformation state, causing them to release from the engaged position, thus enabling easy removal while maintaining connection strength during operation.
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
The solution ensures secure and interference-free electrical connection between the FPC and PCB, simplifying the assembly and disassembly process while eliminating the need for metal components that could cause signal interference.
Implementation Method 1
A plurality of elastic pieces 110 can be located on the PCB 10. The elastic pieces 110 can electrically connect the FPC 30 to the PCB 10
Implementation Method 2
The latching members 220 can be deformed to allow the hooked portions 2202 to insert through the corresponding holes 120 of the PCB 10. After the hooked portions 2202 insert through the corresponding holes 120, the latching members 220 can restore to latch a corresponding portion of the PCB 10
Data Source
AI summary
A carrier for a flexible printed circuit (FPC) includes a number of latching members. The latching members secure the carrier to a printed circuit board (PCB).