Conductive Elastic Member for Flexible PCB Interconnects
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Solution Overview
Problem
Conventional circuit board connectors face challenges with contact stability, ease of assembly and disassembly, and increased costs due to the need for separate fastening methods like soldering, particularly in wire-type connectors, while contact-type connectors result in bulky devices.
Innovation Solution
A printed circuit board device utilizing a conductive elastic member with non-conductive and conductive components that allows for flexible positioning and connection of electronic components and circuit boards, enabling side-by-side or stacked configurations without the need for separate fastening, using a non-conductive body with conductive interconnect ports to secure electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contact-type connector is used to electrically connect electronic component and circuit board, then contact stability is improved, but device thickness increases
Solution Approach 1:
The patent employs a flexible printed circuit board (FPC) as the connector, which uses a thin flexible substrate to achieve electrical connection between the electronic component and circuit board. This flexible film structure provides sufficient contact stability through its elasticity and conformability while maintaining minimal device thickness, resolving the contradiction between reliability and compactness.
Solution Approach 2:
The invention transitions from traditional rigid planar connector layouts to a three-dimensional flexible circuit configuration. The FPC can be bent and folded to accommodate spatial constraints, allowing electrical connections to be established in multiple dimensions while reducing the overall device thickness and enabling side-by-side or stacked positioning arrangements.
2Adaptability or versatility
If wire-type connector is used to provide electrical connection, then positioning flexibility is improved, but contact stability decreases and separate fastening is required
Solution Approach 1:
The patent integrates the connector structure directly into the flexible printed circuit board, merging the electrical connection function with the positioning function. The FPC inherently provides both electrical connectivity and mechanical positioning through its flexible substrate structure, eliminating the need for separate fastening members while maintaining contact stability through the board's own structural integrity.
Solution Approach 2:
The flexible printed circuit board serves multiple functions simultaneously: it provides electrical connection, mechanical positioning, and structural support without requiring additional dedicated components. The FPC's inherent flexibility and elasticity enable it to self-adjust and maintain stable contact while accommodating various positioning requirements, making the system self-sufficient.
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 provides enhanced flexibility in component positioning, reduced device thickness, and simplified assembly and disassembly processes, maintaining stable electrical connections without the need for additional fastening methods, thus addressing the limitations of existing connector technologies.
Implementation Method 1
a conductive elastic member configured to electrically connect the base board with the part
Data Source
AI summary
A printed circuit board (PCB) device is provided, which includes a base board, a part, and a conductive elastic member configured to electrically connect the base board with the part. The conductive elastic member comprises a non-conductive body and at least one conductive interconnect port provided on the non-conductive body and configured to electrically connect an interconnect terminal of the base board with an interconnect terminal of the part.