Multimedia Socket Connector Fracture Layout for Low Crosstalk
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Solution Overview
Problem
Existing multimedia socket connectors face issues with material cost increase, reduced production efficiency, and impaired high-frequency transmission characteristics due to burrs and crosstalk, especially with the trend towards miniaturization.
Innovation Solution
A multimedia socket connector design featuring a one-piece terminal set formed by stamping and bending a single metal sheet, with staggered contact portions and aligned fracture openings, and a metal case with protruding sheets for enhanced shielding and stability, along with an elastic structure to maintain plug contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If terminals are formed through two plates processed through upper and lower terminal molds in insert-molding process, then the connector can be manufactured with standardized process, but the insulating component easily generates burrs during fracturing which increases material cost and reduces production efficiency
Solution Approach 1:
The terminal set is divided into multiple individual terminals that are formed separately on a single metal sheet, allowing each terminal to be independently positioned and fractured without affecting others. This segmentation enables clean fracturing without burrs while maintaining standardized manufacturing processes.
Solution Approach 2:
A fracture opening structure is introduced as an intermediary element between the terminal contact portions and the insulating component. This fracture opening allows the terminal strip to be cleanly separated into individual terminals without generating burrs on the insulating component, thus maintaining production efficiency.
2Ease of manufacture
If terminals are formed through two plates processed through upper and lower terminal molds in insert-molding process, then the connector can be manufactured with standardized process, but it increases material cost
Solution Approach 1:
Multiple terminals are merged into a single one-piece terminal set formed from one metal sheet through stamping and bending. This eliminates the need for separate upper and lower terminal molds and reduces material waste, thereby lowering material cost while maintaining manufacturing feasibility.
Solution Approach 2:
The single metal sheet serves multiple functions: it forms all terminal contact portions, provides structural support, and enables integrated fracturing. This multi-functionality eliminates the need for separate components and molds, reducing overall material cost.
3Volume of moving object
If the distance between components inside the multimedia connector is reduced for miniaturization, then the connector size is reduced, but crosstalk between inside and outside of the connector increases affecting high-frequency transmission characteristics
Solution Approach 1:
The terminal contact portions are arranged in staggered positions across different planes (first plane and second plane) rather than in a single plane. This three-dimensional arrangement reduces electromagnetic coupling between adjacent terminals, suppressing crosstalk while maintaining compact connector dimensions.
Solution Approach 2:
The terminal set uses asymmetric staggering of contact portions where odd-numbered and even-numbered terminals are positioned at different heights. This asymmetric configuration disrupts the symmetry of electromagnetic fields, reducing resonant coupling and crosstalk between adjacent terminals.
Data Source
AI summary
A multimedia socket connector includes an insulating component and a terminal set. The insulating component includes an insulating main body and a tongue portion. The tongue portion includes a plurality of first grooves and second grooves. The first grooves are configured on a first plane of the tongue portion, and the second grooves are configured on a second plane corresponding to the first plane of the tongue portion. The terminal set includes a plurality of terminals. Each of the terminals includes a main portion and a contact portion. The terminal set includes a plurality of first terminals and second terminals. The contact portions of the first terminals are configured in the first grooves respectively, the contact portions of the second terminals are configured in the second grooves respectively, and the main portions of the first terminals and the second terminals are horizontally arranged on the same plane.