Shielding Shell Mating Protrusion Prevents Reverse Connector Insertion
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Solution Overview
Problem
Existing electrical connector assemblies with shielding shells have poor compatibility with standard plug connectors, as they are designed to only mate with customized plug connectors, limiting their compatibility and functionality.
Innovation Solution
A receptacle connector design featuring a metallic shielding plate and a shielding shell with a mating protrusion that prevents reverse mating with standard plug connectors, while allowing normal mating with plug connectors having an identification protrusion, ensuring secure and specific signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shielding shell is designed to prevent reverse mating, then connection reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent applies preliminary anti-action by designing the mating protrusion to preemptively prevent reverse mating before it can occur. The protrusion physically blocks the incorrect insertion path, eliminating the need for users to remember orientation or take additional steps to prevent wrong connections. This resolves the contradiction by making the anti-mating function automatic and built into the structure, requiring no additional operational complexity from the user.
Data Source
AI summary
A receptacle connector for mating with a plug connector, the receptacle connector includes: a terminal module comprising an insulative housing, two rows of terminals, and a metallic shielding plate, the insulative housing having a base portion and a tongue portion, the tongue portion defining two opposite surfaces, the two rows of terminals being reversely-symmetrically arranged at the two surfaces of the tongue portion, the metallic shielding plate located between the two rows of terminals; and a shielding shell retained to the insulative housing and forming a mating cavity to receive the tongue portion, wherein the shielding shell defines a mating protrusion on one of the plurality of side walls, the mating protrusion extending outwardly to be precluded from reversely mating with the plug connector which has a contour compliant with said mating cavity and an identification protrusion accommodated in the mating protrusion.