Tool-less Hinge Mechanism for Multi-Card Chassis Fixation

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Solution Overview

Problem

The existing methods for installing and removing multiple PCI cards in computing devices, such as servers, are time-consuming and inefficient, especially when multiple cards need to be installed or removed simultaneously.

Innovation Solution

A securing apparatus comprising a support bracket, a hinge, and a securing member that rotates about the hinge, allowing for adjustable spacing and easy installation/removal of multiple cards, with optional screws and springs for secure positioning and tool-less operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional screw-based securing methods are used for each card, then secure mechanical fixation is achieved, but installation time increases significantly when multiple cards need to be installed

Engineering Contradiction:
Improvemechanical fixation securityVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

Multiple individual card securing operations are merged into a single group operation. The support bracket holds multiple cards together, and a single securing member secures the entire group simultaneously, converting multiple sequential screw operations into one unified securing action.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The support bracket serves multiple functions: it holds multiple cards in alignment, provides a common securing interface, and enables simultaneous installation/removal of card groups. The securing member universally secures any cards positioned on the support bracket regardless of their individual characteristics.

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

2Reliability

If multiple cards are secured individually with screws, then each card is firmly fixed, but the complexity of the installation process increases

Engineering Contradiction:
Improvecard fixation stabilityVSAvoidinstallation process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The installation process is segmented into two simple stages: (1) positioning cards on the support bracket, and (2) securing the entire group with one member. This segmentation reduces the complexity compared to individually securing each card, while maintaining reliable fixation through the unified securing mechanism.

Inventive Principle:
Principle #1Segmentation

3Manufacturing precision

If cards are installed one at a time with individual securing, then proper alignment is achieved, but productivity decreases when multiple cards need to be installed

Engineering Contradiction:
Improvecard alignment precisionVSAvoidcard installation rate
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

Cards are preliminarily positioned and aligned on the support bracket before the final securing action. The support bracket pre-establishes the correct spatial relationships and alignment for multiple cards, so that when the securing member is applied, all cards are simultaneously and precisely fixed in their proper positions.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables rapid and efficient installation and removal of multiple add-on cards by allowing for controlled displacement and secure locking mechanisms, reducing the time required for technicians to manage multiple cards in computing systems.

Implementation Method 1

The at least one hinge is configured to hold the securing member to the support bracket such that the securing member has an axis of rotation about the support bracket

Methodology Applied
Scientific EffectHinge mechanism: Hinge

Implementation Method 2

the apparatus further includes at least one spring positioned within the spacing between the securing member and the support bracket

Methodology Applied
Scientific EffectElastic force: Elasticity

Implementation Method 3

The at least one screw is configured to prevent the securing member from rotating about the axis of rotation

Methodology Applied
Scientific EffectMechanical fastening: Screw

Data Source

PatentUS20210120696A1Tool-less mechanism for fixing multiple add-on cards
Publication Date: 2021.04.22 QUANTA COMPUTER INC
  • US20210120696A1 patent drawing
  • US20210120696A1 patent drawing
  • US20210120696A1 patent drawing

AI summary

An apparatus for securing multiple cards on a chassis includes a securing member, a support bracket, and at least one hinge. The at least one hinge is configured to hold the securing member to the support bracket such that the securing member has an axis of rotation about the support bracket. The spacing between the securing member and the support bracket is configured to hold a section of the multiple cards.