HDMI Connector Anti-Misinsertion Structure
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Solution Overview
Problem
HDMI connectors often suffer from misinsertion issues due to the similarity in shape between HDMI and USB plugs, leading to potential damage from improper insertion, and existing anti-misinsertion structures are inefficient and costly.
Innovation Solution
A metallic HDMI connector with integrally formed anti-misinsertion structures, including press resilient plates and U-shaped or rhomboidal plates, which prevent non-HDMI plugs from being inserted by using channels, openings, and engagement portions to enhance linking-up and stopping strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional anti-misinsertion structures with separate arms are used, then misinsertion prevention function is provided, but the linking-up and stopping strength is inadequate and the structure complexity increases
Solution Approach 1:
The patent merges the anti-misinsertion arms with the metallic case to form an integrated structure. The arms are formed as integral extensions of the case body, eliminating the need for separate components and reducing assembly steps while maintaining the misinsertion prevention function.
Solution Approach 2:
The patent employs a metallic case with integrated arms formed from the same material, creating a composite structural system that combines the structural integrity of the case with the functional stopping elements of the arms, thereby improving both strength and simplifying the overall structure.
2Reliability
If conventional anti-misinsertion structures with separate arms are used, then misinsertion prevention function is provided, but the manufacturing cost increases
Solution Approach 1:
The anti-misinsertion arms are merged with the metallic case as integral structures, allowing both components to be manufactured as a single piece or pre-assembled unit. This reduces the number of parts, simplifies inventory management, and lowers overall manufacturing costs while maintaining the misinsertion prevention function.
3Reliability
If conventional anti-misinsertion structures are used, then misinsertion prevention function is provided, but the upward pushing force generated from HDMI plug insertion is overly weak
Solution Approach 1:
The integrated metallic case and arms structure creates a more robust mechanical system where the force generated during plug insertion is effectively transmitted through the integrated structure. The unified construction improves force distribution and transmission, generating sufficient upward pushing force to reliably activate the anti-misinsertion mechanism.
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 effectively prevents misinsertion, reduces manufacturing costs, and enhances the structural integrity of the anti-misinsertion mechanism, ensuring the HDMI plug is securely inserted while preventing damage from non-compatible plugs.
Implementation Method 1
two push resilient plates (21, 21') which are made of resilient material and disposed at front ends of the U-shaped plate (2)
Implementation Method 2
the block (22) is received in the opening (13) of the metallic case (1), wherein the block (22) abuts against a front-end top portion (61) of a non-HDMI plug to prevent the non-HDMI plug from being inserted into the insertion space (17)
Data Source
AI summary
A HDMI connector with anti-misinsertion structure includes a metallic case, a U-shaped plate, and a terminal base. The U-shaped plate is disposed on the upper surface of the metallic case, its front ends at which two push resilient plates and a block are disposed, respectively, its rear ends which extend to form two front arm potions connected to the push resilient plates and the block, and extends backward to form two rear arm portions and two base portions. The terminal base is installed thereon a terminal set. The anti-misinsertion structure is integrally formed with the metallic case to reduce manufacturing costs and boost linking-up and stopping strength of the anti-misinsertion structure, thereby preventing the non-HDMI plug from being inserted into the HDMI connector.