USB Type-C Guide Pin Structure for Power and Data Separation

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Solution Overview

Problem

Information handling systems face challenges with power transfer efficiency and connector robustness in small form factors, where limited power delivery and mechanical weakness at connectors hinder performance and usability.

Innovation Solution

The integration of guide pins and guide connectors external to the connector port, with a controller managing power transfer, allows for pre-negotiated power settings and voltage adjustments to enhance power transfer efficiency and robustness, while a replaceable connector port design improves durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a single physical connector provides both data and power interface in small form factor systems, then device footprint is reduced, but power transfer capability is limited

Engineering Contradiction:
Improvedevice footprintVSAvoidpower transfer capability
Core Design Contradiction:
Volume of moving objectVSPower

Solution Approach 1:

The connector system is segmented into two separate interfaces: a first connector dedicated to data communication and a second connector dedicated to power transfer. This segmentation allows each connector to be optimized for its specific function, enabling the power connector to provide higher power transfer capability while the data connector maintains compact dimensions, thus resolving the contradiction between reduced footprint and enhanced power capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system integrates multiple functions across two connectors: the first connector handles data communication while the second connector provides power transfer. This multi-functional approach allows the overall system to achieve both compact form factor (through the small data connector) and high power capability (through the dedicated power connector), eliminating the limitation of single-connector designs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Length of stationary object

If housing thickness is reduced to achieve thin form factor, then mobility is improved, but mechanical strength at connector locations is weakened

Engineering Contradiction:
Improvehousing thicknessVSAvoidmechanical strength at connector
Core Design Contradiction:
Length of stationary objectVSStrength

Solution Approach 1:

The connector system is divided into two separate connectors positioned at different locations on the housing. This segmentation distributes the mechanical stress and structural requirements across multiple attachment points, allowing the housing to maintain adequate strength at each connector location even with reduced overall thickness. The separate power and data connectors can be strategically positioned to optimize structural support.

Inventive Principle:
Principle #1Segmentation

3Area of stationary object

If connector footprint is reduced for compact design, then device size is minimized, but alignment difficulty increases

Engineering Contradiction:
Improveconnector footprintVSAvoidalignment ease
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

Guide pins are introduced as intermediary alignment features that extend beyond the main connector bodies. These guide pins provide prominent, easily locatable alignment references that facilitate accurate cable-to-connector alignment. The guide pins act as mediators between the user and the compact connector, making the alignment process intuitive and precise despite the reduced connector footprint.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide pins are configured to be visually distinct from the connector body, creating visual contrast that aids alignment. This visual differentiation helps users quickly identify the correct insertion orientation and location, improving ease of operation without requiring larger connector dimensions.

Inventive Principle:
Principle #32Color changes

4Ease of operation

If guide pins are added external to connector port, then alignment ease is improved, but device complexity increases

Engineering Contradiction:
Improvealignment easeVSAvoidconnector structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The guide pins are integrated with the connector assembly as a unified structure, where the guide pins and connector body function together as a single component unit. This merging approach allows the alignment features to be added without requiring separate assembly steps or additional complex mechanisms, thereby minimizing the increase in device complexity while still providing improved alignment ease.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9891680B2Information handling system multi-purpose connector guide pin structure
Publication Date: 2018.02.13 DELL PROD LP
  • US9891680B2 patent drawing
  • US9891680B2 patent drawing
  • US9891680B2 patent drawing

AI summary

A USB Type C connector port adapts to support docking solutions with enhanced power transfer features, including increased power transfer levels supported through a guide pin and connector interface, rapid power transfer configuration changes by applying pre-negotiated power settings, external battery charge and discharge at an information handling system with improved efficiency accomplished by transitioning voltage between native and boosted levels responsive to information handling system load, and robust connector port coupling in a cavity of a connector shell.