Shielded Connector Terminal Segmentation for Insulation Protection
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Solution Overview
Problem
Existing shielded connectors often experience short circuits between conductive terminals and shielding bodies due to interference fit, which damages the isolator and leads to uncovered shielding, causing electrical shorts.
Innovation Solution
The shielded connector design features an insulating body with through slots and positioning slots, where the conductive terminal's positioning section is in interference fit with the positioning slot, and the conducting section is not in interference fit with the through slot, preventing damage to the isolator and ensuring stable retention without short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the body portion of the conductive terminal is in interference fit with the receiving slot, then the conductive terminal can be firmly fixed in the seat, but the isolator may be scratched or peeled off, causing short circuit between the conductive terminal and shielding body
Solution Approach 1:
The conductive terminal's body portion is divided into two functional sections: a positioning section that fits into the positioning slot for stable retention, and a conducting section that passes through the through slot without interference fit to avoid damaging the isolator. This segmentation allows the terminal to be firmly fixed while maintaining electrical insulation reliability.
Solution Approach 2:
Different sections of the conductive terminal are designed with different fitting characteristics: the positioning section has interference fit with the positioning slot for stable fixation, while the conducting section has clearance fit with the through slot to prevent isolator damage. This local differentiation of fitting quality resolves the contradiction between stability and reliability.
2Strength
If the body portion width is greater than the receiving slot width for interference fit, then the conductive terminal is securely retained, but the isolator over the shielding body may be damaged during mounting
Solution Approach 1:
The body portion is segmented into a positioning section (with width greater than positioning slot width for interference fit) and a conducting section (with width less than through slot width for clearance fit). This segmentation enables secure retention through the positioning section while preventing isolator damage with the conducting section.
Solution Approach 2:
The harmful interference fit action is extracted from the conducting section and relocated to only the positioning section. By removing the interference fit from the conducting section that passes through the through slot, the isolator is protected from damage while the positioning section maintains retention strength.
Data Source
AI summary
A shielded connector. In one embodiment, the shielded connector includes: a seat, including an insulating body with a plurality of through slots and a plurality of positioning slots, in which a shielding body is disposed in the through slot and no shielding body is disposed in the positioning slot, at least one conductive body connected to the shielding bodies, and at least one lead-out portion electrically connecting the conductive body to a motherboard; and a plurality of conductive terminals, each including a contact portion, a body portion extending from the contact portion, and a connecting portion, in which the body portion includes a positioning section extending from the contact portion and in interference fit with the positioning slot, and a conducting section extending from the positioning section into the through slot and not in interference fit with the through slot.