HDMI Plug Locking Tab Actuator Mechanism
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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 movable locking tab and actuator that can be manually operated to securely engage with the HDMI receptacle, providing a mechanical friction fit to prevent disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If standard HDMI connectors use friction interference fittings, then the connector can be easily inserted and removed, but the connection becomes loose and susceptible to disconnection under gravitational force or normal bumping
Solution Approach 1:
The connector employs a dynamic locking mechanism where the locking tab can move between engaged and disengaged states. The tab is biased by a spring to automatically engage with the receptacle opening upon insertion, and can be manually disengaged by applying force to the actuator, providing both automatic securing and controlled release
Solution Approach 2:
The locking tab acts as an intermediary element between the connector body and the receptacle. It physically bridges the gap by extending into the receptacle opening to prevent withdrawal, while the actuator serves as an intermediary control mechanism that the user manipulates to change the tab's position
2Reliability
If spring biased tabs are used to provide interference fit, then some resistance to retraction is provided, but the connector still comes loose under gravitational force or bumping
Solution Approach 1:
The locking mechanism creates asymmetric force characteristics: easy insertion in one direction, but strong resistance to withdrawal in the opposite direction. The locking tab geometry and spring bias are designed to provide minimal resistance during insertion but maximum resistance during attempted removal
Solution Approach 2:
The spring-loaded locking tab provides a counteracting force that opposes gravitational pull and external forces attempting to dislodge the connector. The spring bias continuously applies force to maintain engagement, counterbalancing the downward force on downward-mounted connectors
3Reliability
If a locking mechanism is added to prevent disconnection, then connection reliability improves, but device complexity increases
Solution Approach 1:
The locking tab is integrally formed with the connector body as a single piece, eliminating the need for separate locking components. The actuator is also integrated into the body structure, combining multiple functions into unified elements that reduce part count and assembly complexity
Solution Approach 2:
The spring-loaded locking tab automatically engages with the receptacle opening upon insertion without requiring user action. The mechanism self-secures the connection, and only requires minimal user input (light pressure on the actuator) for release, making the complex function appear simple to operate
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 reliable and secure HDMI connections, resisting disconnection from normal forces like gravity, dusting, or movement, while allowing easy release with sufficient force, thus maintaining signal integrity and preventing damage to the receptacle.
Implementation Method 1
providing a mechanical friction fit to prevent disconnection
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. A corresponding method of releasably securing a high definition multimedia interface plug into standard high definition multimedia interface receptacle is also provided.