Coaxial Connector Assembly for Solderless Flexible Board Contact
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Solution Overview
Problem
Existing coaxial connectors face challenges in achieving high contact reliability when connected to flexible boards made of materials with low heat resistance, as soldering is difficult and pressing the center terminal against the signal line can cause bending, leading to insufficient contact pressure.
Innovation Solution
A connector assembly that connects a coaxial connector to a flexible board using fixing members to press the center terminal against the signal line without soldering, reducing bending and improving contact reliability through a mechanism that sandwiches the flexible board between the connector's projecting portions and a fixed member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If soldering is used to connect the center terminal to the signal line, then electrical connection reliability is improved, but the flexible board may be damaged due to low heat resistance of the material
Solution Approach 1:
The patent replaces the thermal connection process (soldering) with a mechanical connection system. The center terminal is pressed against the signal line through a pressing mechanism involving the case, fixing members, and elastic members, eliminating the need for heat application that would damage the flexible board material.
Solution Approach 2:
The patent introduces intermediate components (fixing members, elastic members, and the case structure) that mediate between the center terminal and the signal line. These intermediaries transmit and maintain contact pressure without requiring direct thermal or rigid mechanical connection, protecting the flexible board from damage.
2Object-affected harmful factors
If the center terminal is pressed against the signal line without soldering, then heat damage is avoided, but the flexible board may bend causing insufficient contact pressure
Solution Approach 1:
The patent employs elastic members (such as springs or elastic deformation elements) that store mechanical energy and provide continuous pressing force. This beforehand cushioning mechanism compensates for board bending and maintains stable contact pressure between the center terminal and signal line without requiring soldering.
Solution Approach 2:
The patent creates a dynamic connection system where the elastic members can deform and recover, allowing the connection to adapt to board movements and bending. This dynamic mechanism maintains optimal contact pressure under varying conditions without rigid fixation that would cause board damage.
3Reliability
If fixing members are used to press the center terminal against the signal line, then contact reliability is improved, but the structure complexity increases
Solution Approach 1:
The patent merges multiple functions into integrated components. The case serves both as the connector housing and as part of the pressing mechanism. The fixing members combine both fixation and pressing functions, eliminating the need for separate components and reducing overall structural complexity while maintaining high contact reliability.
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 high contact reliability between the center terminal and the signal line of the flexible board by stabilizing the connection and maintaining contact pressure, even under applied forces.
Implementation Method 1
The fixing members press the fixed member against the flexible board when the center terminal is connected to the signal line
Data Source
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AI summary
A connector assembly comprises a coaxial connector, a fixed member and two fixing members. The coaxial connector comprises an outer terminal and a center terminal. The outer terminal has two projecting portions which are apart from each other in the lateral direction. The center terminal has a contact portion which is located between the two projecting portions in the lateral direction. The fixed member is located below the flexible board under a connected state where the connector assembly is connected to the flexible board. Under the connected state, the two fixing members are fixed to the two projecting portions, respectively, while pressing the flexible board, and thereby the contact portion of the center terminal is pressed against and is in contact with the signal line of the flexible board.