Mini DisplayPort Receptacle Insulator with Insert-Molded Contacts
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Solution Overview
Problem
Conventional Mini DisplayPort connector receptacles experience unstable signal transmission due to gaps between contacts and holes, which affect the alignment and securement of contacts on the circuit board.
Innovation Solution
The connector receptacle design includes an insulator with a base portion, a tongue plate, and a positioning portion, where upper and lower contacts are insert-molded and secured using surface mount technology and through hole technology, respectively, ensuring precise alignment and secure insertion into the circuit board's through holes, eliminating the need for an organizer and reducing manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If holes are provided in the organizer to receive contacts, then contact positions can be fastened, but gaps between holes and contacts cause unstable signal transmission
Solution Approach 1:
The patent merges the organizer and insulator into a single integrated component. The positioning portions are directly formed on the insulator body, eliminating the separate organizer assembly. This integration ensures precise alignment between contact holes and contacts through the insulator's own structural features (positioning grooves and positioning protrusions), thereby eliminating gaps that cause signal transmission instability while maintaining manufacturing feasibility.
2Ease of manufacture
If a separate organizer is used to fasten contacts, then contact positions can be secured, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent combines the organizer and insulator into one integrated component, reducing the total number of parts. The positioning portions are directly molded into the insulator body, eliminating the need for separate organizer assembly steps. This integration simplifies the manufacturing process while maintaining the functionality of contact positioning and securing.
Solution Approach 2:
The integrated insulator serves multiple functions: electrical insulation, contact positioning (through positioning grooves), contact securing (through positioning protrusions and holes), and structural support. This multi-functionality eliminates the need for separate organizer components while maintaining all necessary contact fastening capabilities.
3Manufacturing precision
If contacts are inserted through holes in the organizer, then contacts can be fastened to the circuit board, but alignment precision is compromised due to gaps
Solution Approach 1:
The patent introduces localized positioning features (positioning grooves and positioning protrusions) at specific locations on the insulator where contacts are inserted. These localized structures provide precise alignment guidance for contact insertion while maintaining ease of operation. The positioning grooves guide contact insertion from the front, and positioning protrusions secure contacts from the rear, ensuring high alignment precision without compromising insertion ease.
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
This design stabilizes signal transmission, reduces manufacturing difficulties and costs, and allows for modular customization of Mini DisplayPort receptacles, enhancing compatibility with various electronic devices.
Implementation Method 1
The connection portions of the upper contacts are held by the first insulator and insert-molded in the first insulator, the connection portions of the lower contacts are held by the base portion and insert-molded in the base portion
Data Source
AI summary
A Mini DisplayPort connector receptacle including an insulator, a plurality of contacts and a metal shell surrounding the insulator. The insulator includes a first insulator and a second insulator with a base portion, a positioning portion, and a tongue plate. The tongue plate defines first contact locations on a top side of the tongue plate and second contact locations on a bottom side of the tongue plate. The contacts include upper contacts at the corresponding first contact location and lower contacts at the corresponding second contact location. The connection portions of the lower contacts are held by the base portion and insert-molded in the base portion, and the partial soldering portions of the lower contacts are held by the positioning portion and insert-molded in the positioning portion.