Asymmetric Stopper Prevents Erroneous Server Module Insertion

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Solution Overview

Problem

Existing information processing devices face challenges in preventing erroneous insertion of electronic components due to limited space for connector layouts, as existing solutions require additional space for erroneous insertion prevention mechanisms, which restricts the design flexibility of connector arrangements.

Innovation Solution

The design incorporates a stopper and interference member positioned asymmetrically within the casing, allowing the stopper to interfere with the electronic component only when inserted irregularly, thus preventing incorrect insertion without obstructing the connector layout.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an erroneous insertion prevention member is projected from the bottom of the casing, then erroneous insertion can be prevented, but the layout freedom of connectors in the bottom of the casing is degraded

Engineering Contradiction:
Improveerroneous insertion preventionVSAvoidlayout freedom of connectors
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The invention moves the erroneous insertion prevention mechanism from the bottom surface (2D plane) to the side surface of the electronic component. The interference member is disposed on the side face of the electronic component, and the stopper is attached to the side surface of the casing, utilizing the vertical dimension and side surfaces rather than consuming bottom surface area, thus resolving the contradiction between prevention reliability and layout freedom.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The interference member and stopper are configured with asymmetric positioning. The interference member is disposed asymmetrically on the side face of the electronic component, and the stopper is attached at a deviated position on the side surface of the casing. This asymmetric design enables directional insertion control while maintaining flexibility in connector arrangement on the bottom surface.

Inventive Principle:
Principle #4Asymmetry

2Adaptability or versatility

If a stopper is attached at a deviated position on the side surface, then connector layout freedom is improved, but the stopper may interfere with regular insertion

Engineering Contradiction:
Improvelayout freedom of connectorsVSAvoidinsertion operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The asymmetric configuration of the interference member on the electronic component and the corresponding stopper on the casing creates a directional interface. The stopper is positioned at a deviated location that does not obstruct the regular insertion path, while the asymmetric geometry ensures that reverse or incorrect insertion attempts are blocked by the interference member engaging with the stopper.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The interference prevention function is localized to specific regions: the interference member is disposed close to at least one end of the electronic component in the width direction, and the stopper is attached at a corresponding deviated position. This localized arrangement ensures that the prevention mechanism only activates when needed (incorrect insertion) without interfering with the main insertion operation.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10080305B2Information processing device with electronic-component unit preventing erroneous insertion of electronic parts
Publication Date: 2018.09.18 NEC PLATFROMS LTD
  • US10080305B2 patent drawing
  • US10080305B2 patent drawing
  • US10080305B2 patent drawing

AI summary

An information processing device (e.g. a server) is designed to install a plurality of electronic components (e.g. server modules) connectible to a plurality of connectors arranged in the bottom of a casing. A stopper is attached to the casing at a deviated position slightly deviated from the electronic component in its thickness direction perpendicular to the insertion direction of the electronic component. An interference member is disposed in an interference area asymmetrically located on a first face of the electronic component relative to a second face of the electronic device in its thickness direction with respect to the electronic device. The interference member interferes with the stopper only when the electronic component is inserted into the connectors at an irregular position or in a reverse manner.