Card Edge Connector Reinforced Rotatable Ejector
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Solution Overview
Problem
Traditional card edge connectors with separate locking and holding parts are prone to breaking and experience complex rotation operations during daughter card ejection due to relative movement between parts, compromising securement and reliability.
Innovation Solution
A unitary ejector with embedded deflectable engagement arms and a metal reinforcement piece is pivotally mounted at the housing end, ensuring secure engagement with the housing and preventing breakage during rotation, enhancing the locking mechanism's reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate locking and holding parts are used, then the locking mechanism can be designed with discrete components, but the parts are prone to breaking and experience complex rotation operations during ejection
Solution Approach 1:
The patent combines separate locking and holding parts into a unitary ejector structure that is pivotally mounted as a single piece, eliminating the relative movement between discrete components and preventing breakage during rotation operations
2Adaptability or versatility
If separate locking and holding parts are used, then component design is flexible, but the relative movement between parts complicates the rotation operation during ejection
Solution Approach 1:
The unitary ejector structure merges multiple functions into a single pivotally mounted component, eliminating relative movement between parts and simplifying the rotation operation during ejection to a single smooth motion
3Device complexity
If traditional one piece ejector is used, then the structure is simple, but the thickness is relatively small making it prone to breaking
Solution Approach 1:
The patent employs a unitary ejector structure with integrated reinforcement that combines structural simplicity with enhanced thickness and strength, preventing breakage while maintaining ease of manufacture
4Ease of manufacture
If discrete two parts are used, then assembly is flexible, but the thickness is reduced making the parts more susceptible to breaking
Solution Approach 1:
The patent merges discrete locking and holding parts into a single unitary ejector structure, increasing the effective thickness and strength of the engagement arms while maintaining ease of manufacture through pivotal assembly
Data Source
AI summary
An electrical connector includes an insulative elongated housing with an elongate central slot for receiving a daughter card, a plurality of contacts disposed in the housing by two sides of the central slot, and a mounting section located at one end of the housing with a unitary ejector pivotally mounted therein. The ejector forms a receiving slot for receiving the daughter board, and a pair of engagement arms located by two opposite sides of the receiving slot with corresponding hook at front ends to be engaged within corresponding engagement slots formed in the mounting section. Each deflectable engagement arms includes a metal piece associated therewith not only preventing breaking of the deflectable engagement arm during rotation of the ejector but also enhancing engagement between the ejector and the housing.