Information Resource Bay Guard Prevents Incompatible Connector Insertion

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Solution Overview

Problem

Existing information handling systems lack effective mechanisms to prevent electrical shorts caused by improper coupling of power supply units with incompatible connectors, leading to potential damage.

Innovation Solution

Incorporating a mechanical guard into the information handling resource bay that interferes with incompatible power supply units to prevent full insertion into the connector, ensuring proper alignment and preventing electrical shorts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If connectors without keying features are used to ensure compatibility and ease of connection, then adaptability is improved, but reliability deteriorates due to risk of improper coupling and electrical shorts

Engineering Contradiction:
Improveconnector compatibilityVSAvoidconnection safety
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

A mechanical guard is introduced as an intermediary component between the power supply unit and the connector. This guard features a protrusion that interacts with a recess in the connector, serving as a mediator to prevent improper coupling while maintaining the simplicity of connectors without traditional keying features. The mechanical guard enables incompatible connectors to be physically prevented from connecting, thus improving reliability without sacrificing adaptability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If keying features are added to connectors to prevent improper coupling, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improveconnection safetyVSAvoidconnector structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The keying function is extracted from the connector itself and relocated to a separate mechanical guard component. This allows the connector to remain simple without traditional keying features, while the mechanical guard provides the necessary interference to prevent improper coupling. By separating the keying function into a distinct component, the overall device complexity is managed more effectively than if keying features were integrated directly into the connector.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The mechanical guard acts as an intermediary that provides the keying function without being part of the connector assembly itself. This mediator component introduces the necessary mechanical interference to prevent incompatible connections while keeping the connector design simple and manageable.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If mechanical guard is added to prevent incompatible connections, then reliability is improved, but ease of operation deteriorates due to additional components

Engineering Contradiction:
Improveconnection safetyVSAvoidinstallation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The mechanical guard is merged with the power supply unit housing, integrating the safety feature into an existing component rather than adding it as a separate assembly. This merging approach maintains reliability by preventing incompatible connections while minimizing the impact on ease of operation, as the guard becomes part of the standard power supply unit installation process.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20250231598A1Systems and methods for keying for differently-sized information handling resources
Publication Date: 2025.07.17 DELL PROD LP
  • US20250231598A1 patent drawing
  • US20250231598A1 patent drawing
  • US20250231598A1 patent drawing

AI summary

An information handling system may include a motherboard, an information handling resource bay, a first connector coupled to the motherboard and configured to electrically couple to a compatible information handling resource inserted into the information handling resource bay, and a mechanical guard coupled to the information handling resource bay such that the mechanical guard covers a portion of an opening of the information handling resource bay proximate to the first connector, wherein the mechanical guard is arranged relative to the opening such that when an attempt is made to insert an incompatible information handling resource into the information handling resource bay, the mechanical guard mechanically interferes with an interference feature of the incompatible information handling resource to prevent full insertion of a second connector of the incompatible information handling resource into the first connector.