HDMI Plug Locking Tab Actuator Prevents Gravity Disconnection
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Solution Overview
Problem
Standard high definition multimedia interface (HDMI) connectors are prone to loose connections due to structural deficiencies and gravitational forces, especially when HDMI receptacles are mounted downward, leading to signal loss and disconnection issues.
Innovation Solution
A locking HDMI plug design featuring a connector body with a movable locking tab and actuator, allowing the tab to protrude or retract from an opening, securely engaging with a standard HDMI receptacle to prevent unintentional disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard HDMI connectors use friction interference fittings, then the connector structure is simple, but the connection reliability deteriorates due to loose connections and signal loss
Solution Approach 1:
The locking tab is designed to be movable between a retracted position (for insertion) and a protruding position (for locking). This dynamic element transforms the static friction fit into an active locking mechanism, preventing unintentional disconnection while maintaining a relatively simple overall structure.
Solution Approach 2:
The locking mechanism utilizes the existing spring-biased tabs in the receptacle to its advantage. When the locking tab protrudes, it engages with these spring tabs, allowing the receptacle's own components to contribute to the locking action, thereby enhancing reliability without proportionally increasing complexity.
2Adaptability or versatility
If HDMI receptacles are mounted downward to achieve wall mounting, then installation flexibility is improved, but connection stability deteriorates due to gravitational forces causing connector disconnection
Solution Approach 1:
The locking tab protrudes in a direction that counteracts the gravitational force acting on the connector. When the receptacle is mounted downward, the locking tab engages with the spring-biased tab from above, creating a mechanical interlock that opposes the downward pull of gravity, thereby preventing disconnection.
Solution Approach 2:
The locking tab is positioned to engage with the spring-biased tab before gravitational forces can cause disconnection. This preliminary mechanical engagement creates a secure connection that resists the ongoing effect of gravity, ensuring stability in downward-mounted configurations.
3Ease of operation
If spring biased tabs provide interference fitting, then ease of insertion is improved, but connection strength deteriorates due to insufficient friction resistance
Solution Approach 1:
The connection mechanism is segmented into two distinct functions: the spring-biased tabs handle the insertion phase through elastic deformation and interference fitting, while the locking tab handles the retention phase through mechanical engagement. This segmentation allows each component to optimize its specific function without compromise.
Solution Approach 2:
The spring-biased tabs perform the preliminary action of guiding and securing the connector during insertion through elastic deformation. Once insertion is complete, the locking tab then engages to provide the additional mechanical strength needed for secure retention, creating a two-stage connection process.
Data Source
AI summary
A releasably engaging high definition multimedia plug comprises a plug body and an actuator operable with the plug body to move a locking tab of the plug and facilitate releasable engagement of the plug with a standard high definition multimedia receptacle.