Electrical Connector Detecting Contact Supporting Block
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Solution Overview
Problem
Existing electrical connectors with detecting contacts lose elasticity over time, causing incorrect identification of non-USB PD plugs as USB PD plugs, leading to potential damage from excessive power transmission.
Innovation Solution
An electrical connector design featuring a supporting block within the insulating housing to prevent the detecting contact from over-skewing, utilizing a metallic shell and conductive terminals with a mating tongue and receiving slots to securely position the detecting contact, thereby preventing incorrect plug recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If no supporting structure is provided for the detecting contact, then the device complexity is reduced, but the detecting contact may over-skew causing incorrect plug recognition and potential damage
Solution Approach 1:
The receiving slot is segmented into two functional zones: the first portion for receiving the detecting contact and the second portion containing the supporting block. This segmentation allows the structure to remain relatively simple while providing the necessary support function to prevent over-skewing and incorrect recognition.
2Ease of operation
If the detecting contact is allowed to move freely, then the ease of operation is improved, but the detecting contact may lose proper positioning and cause harmful contact with non-USB PD plugs
Solution Approach 1:
The detecting contact is designed with dynamic characteristics - it can move forward to make contact for recognition purposes, but the supporting block provides a dynamic limit to this movement. This allows sufficient flexibility for proper operation while preventing excessive movement that would cause harmful contact with non-USB PD plugs.
Data Source
AI summary
An electrical connector includes an insulating housing, a plurality of conductive terminals, a detecting contact and a metallic shell. The insulating housing has a base portion extending along a longitudinal direction and a mating tongue extending forwardly from the base portion. The mating tongue has a receiving slot recessed therefrom in which the detecting contact received. The metallic shell surrounds the insulating housing to form a receiving room. The detecting contact defines a detecting section extending out of the receiving slot for protruding into the receiving room. The insulating housing defines a supporting block formed in the receiving slot for supporting the detecting contact to prevent the detecting contact from over-skewing.