Coaxial Connector Retaining Arms for Secure PCB Engagement
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Solution Overview
Problem
Existing coaxial electrical connectors lack a secure engagement mechanism between cable and board connectors due to their small size, leading to inadequate retention and potential disconnection.
Innovation Solution
The coaxial electrical connector assembly features a shielded shell with a ring portion and retaining arms that extend from the bottom face to the mating face, which lock into corresponding grooves on the board connector, enhancing the mating force and ensuring reliable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the coaxial electrical connectors are made small in size, then they are more compact and easier to install, but the engagement between cable and board connectors becomes insufficient leading to potential disconnection
Solution Approach 1:
The shielded shell is segmented into functional portions: a ring portion for general shielding and engagement, and specifically formed retaining arms that extend from the bottom face to the mating face. These retaining arms are further divided into engagement sections that lock into corresponding grooves on the board connector, creating multiple discrete engagement points that distribute mechanical stress and prevent disconnection despite the compact overall size.
2Strength
If retaining arms are added to the shielded shell, then the mating force and locking capability are improved, but the device complexity increases
Solution Approach 1:
The retaining arms are merged with the shielded shell as an integral component rather than separate parts. The shielded shell combines multiple functions: electromagnetic shielding, structural support, and mechanical engagement through the integrated retaining arms. This merging reduces the total part count and assembly complexity while achieving the required mating force and locking capability.
Data Source
AI summary
A coaxial connector assembly comprises a cable coaxial electrical connector and a board coaxial electrical connector mounted on a PCB and connecting to the cable coaxial electrical connector. The cable coaxial electrical connector defines a pair of retaining arms extending toward the board coaxial electrical connector, thereby the pair of retaining arms locking with the board coaxial electrical connector or the PCB to ensure a good engagement of the two coaxial connectors.