Floating Board Coaxial Connector Contact for Vibration Durability
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Solution Overview
Problem
Existing coaxial connectors mounted on boards, such as those used in car cameras, are prone to damage due to repeated use and deformation, which affects their reliability and durability.
Innovation Solution
A board coaxial connector design featuring a first insulator with a movable inner conductor and a second insulator with a tail portion, allowing for slight deviation from the axis, combined with outer conductors and connecting portions that securely attach to the circuit board, enabling flexibility to adapt to vibrations while maintaining contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the contact is fixed rigidly on the circuit board, then the connection is stable, but the contact is prone to damage under repeated use and vibrations
Solution Approach 1:
The contact is designed with a movable connecting portion that can deviate from the axis of the second inner conductor, transforming the rigid fixed structure into a dynamic flexible structure. This allows the contact to adapt to vibrations and repeated use without damage while maintaining stable electrical connection.
Solution Approach 2:
The first connecting portion of the first inner conductor is allowed to change its position parameter by deviating slightly from the axis of the second inner conductor. This parameter change enables the contact to absorb mechanical stress from vibrations and repeated connections, improving durability while maintaining reliability.
2Reliability
If the connector is fixed rigidly, then the signal transmission is stable, but the connector cannot adapt to vibrations
Solution Approach 1:
The floating connector design allows the first inner conductor to move relative to the second inner conductor, creating a dynamic system that can adapt to vibrations. The movable connecting portion acts as a flexible element that maintains electrical contact while accommodating mechanical displacements caused by vibrations.
Solution Approach 2:
The movable connecting portion of the first inner conductor serves as an intermediary element between the fixed first insulator and the second inner conductor. It mediates the mechanical stress from vibrations by allowing slight deviations from the axis, thereby protecting the rigid parts while maintaining signal transmission stability.
3Strength
If the contact is made flexible to adapt to vibrations, then the durability is improved, but the connection stability may be compromised
Solution Approach 1:
The first connecting portion is designed to be movable but constrained within a limited range (slight deviation from the axis). This dynamic design provides flexibility for durability while the constraint maintains connection stability by preventing excessive movement that could compromise the electrical connection.
Solution Approach 2:
The position parameter of the first connecting portion is allowed to change within a controlled range (slight deviation from the axis). This controlled parameter change improves durability by accommodating vibrations while maintaining connection stability through the limitation of the deviation range.
Data Source
AI summary
A board coaxial connector includes: a first insulator, a first inner conductor retained in the first insulator and having a mating portion and a first connecting portion extending out of the first insulator, a first outer conductor having a third connecting portion and retaining the first insulator, a second outer conductor mounted on the circuit board and having a fourth connecting portion, and a second inner conductor having a second connecting portion and a tail portion mounting on the circuit board, wherein the first connecting portion is connected with the second connecting portion, the third connecting portion is connected with the fourth connecting portion, and the first connecting portion of the first inner conductor is movable to slightly deviate from an axis of the second inner conductor.