HDMI Type-D Connector Coplanar Terminal Design
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Solution Overview
Problem
Conventional HDMI type-D connectors with upper-row and lower-row terminal arrangements are prone to cross-talk interference and require a two-layer circuit board layout, increasing manufacturing costs and casing thickness.
Innovation Solution
A unique terminal arrangement featuring coplanar soldering portions with alternating and multiple-bend conductive pins, where the first set of pins is disposed on one side and the second set on the opposing side, with a shield component to prevent electromagnetic interference, allowing for a monolayer circuit board layout and reduced design costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive terminals are arranged in upper-row and lower-row configuration, then the connector can be electrically connected to the circuit board, but terminal cross-talk interference increases and manufacturing cost increases
Solution Approach 1:
The patent transitions from a traditional two-layer circuit board layout to a monolayer layout by arranging all soldering portions of conductive terminals in a single plane. This dimensional reorganization eliminates the need for vias between layers, reducing manufacturing complexity and cost while maintaining electrical connection reliability and minimizing cross-talk interference through optimized terminal spacing and grounding arrangements.
Solution Approach 2:
The patent introduces shield terminals as intermediary elements positioned between signal-carrying conductive terminals. These shield terminals act as electromagnetic barriers that intercept and redirect interfering signals, thereby reducing cross-talk between adjacent signal terminals while preserving the electrical connection function. The shield terminals are integrated into the same coplanar arrangement, maintaining the monolayer benefit.
2Ease of manufacture
If two-layer circuit board layout is used, then electrical connection is achieved, but manufacturing cost increases
Solution Approach 1:
The patent consolidates all terminal connections into a single plane (monolayer), eliminating the need for multi-layer vias and complex routing. All soldering portions lie in the same plane, allowing direct surface-mount technology (SMT) connections on a single circuit board layer, thereby simplifying manufacturing processes and reducing costs.
Solution Approach 2:
The patent merges the functions of multiple terminal rows into a single coplanar arrangement. Instead of separating signal terminals and ground terminals into different layers, all terminals are integrated in one plane with optimized spacing, combining the benefits of electrical connection, shielding, and simplified manufacturing in a unified structure.
3Ease of operation
If conventional terminal arrangement is used, then connection functionality is achieved, but casing space increases
Solution Approach 1:
The patent reorganizes terminals from a distributed multi-row configuration into a compact coplanar arrangement where all soldering portions lie in the same plane. This consolidation reduces the overall footprint of the connector, allowing for a more compact casing design while maintaining all necessary connection functionalities through optimized terminal positioning.
Data Source
AI summary
The present invention provides a HDMI type-D connector with a shield; a housing having a tongue with first terminal slots disposed on a first side and second terminal slots disposed on an opposing second side; a shield component; a first conductive set of pins disposed in the first terminal slots; and a second conductive set of pins disposed in the second terminal slots, wherein each of the conductive terminals of the first conductive set of pins and the second conductive set of pins has a contact portion, a bend portion, and a soldering portion, where contact portions of the first conductive set of pins are disposed in the first terminal slots and the second conductive set of pins are disposed in the second terminal slots wherein the bend portions extend from the contact portions, bend multiple times, and end at coplanar soldering portions.