Connector Elastic Pressing for Reliable Circuit Board Assembly
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Solution Overview
Problem
Conventional connectors for flexible printed circuits and flat cables often result in poor contact reliability due to shearing of insulating materials, which can lead to decreased electrical connection reliability and require significant force for assembly, making them difficult to attach securely.
Innovation Solution
A connector system comprising a first and second circuit board with H-shaped openings and protruding pieces, along with a detachable connector portion featuring projections and fitting holes, allows for easy assembly and reliable electrical contact by elastic pressing of contact portions between insulating surfaces, ensuring consistent and strong connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If penetrating pieces are thrust into the overlap part to connect circuit conductors, then electrical connection is achieved, but insulating materials are sheared causing poor contact reliability
Solution Approach 1:
The patent extracts the harmful shearing action by replacing the penetrating piece insertion method with a clipping mechanism. The clipping member engages with the circuit board and cable without thrusting into the overlap part, thereby avoiding the shearing of insulating materials while still achieving electrical connection through contact with conductors.
Solution Approach 2:
The patent introduces a clipping member as an intermediary component that mediates the connection between the connector body and the cable. This clipping member provides a mechanical engagement structure that avoids direct contact and shearing of insulating materials, while still enabling electrical connection through its contact portions.
2Reliability
If penetrating pieces are thrust into the FPC and flat cable to establish connection, then electrical contact is made, but great force is required making assembly difficult
Solution Approach 1:
The patent employs a dynamic clipping mechanism that can be easily opened and closed. The clipping member is designed to be movable between an open state for easy assembly and a closed state for secure connection. This dynamic structure allows assembly to be performed with minimal force while maintaining reliable electrical connection.
Solution Approach 2:
The patent segments the connector into a connector body and a separate clipping member. This segmentation allows the clipping member to be independently operated for assembly and disassembly, providing ease of operation. The clipping member can be opened to receive the cable and closed to secure the connection without requiring great force.
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 a reliable and easy-to-assemble connector system that enhances the electrical connection reliability between circuit boards, reducing misalignment issues and maintaining a thin profile while ensuring stable contact through elastic pressing of contact portions.
Implementation Method 1
at least a portion of the projection in the Y direction has elasticity
Data Source
Figure 1
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Figure 4~6
AI summary
A connector includes a first connector portion in which projections project from a surface of a base plate, and a second connector portion formed of a fitting plate in which fitting holes corresponding to the projections are formed, at least either the projections or the fitting holes having elasticity, when the projections of the first connector portion are fitted in the fitting holes of the second connector portion as catching the first contact portion and the second contact portion with the first and second contact portions facing and being overlapped on each other, the first contact portion and the second contact portion being elastically pressed against each other and contacted to each other to establish electrical connection therebetween in a space between a lateral surface of the projections and an inner surface of the fitting holes.