Tool-Free Release Hook for PCIe Card Removal

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Solution Overview

Problem

Existing methods require tools to release computer components, such as PCIe cards, from supporting structures like GPU trays, which is inconvenient and often impossible due to space limitations.

Innovation Solution

A service structure featuring a release hook with thumbscrews and a push lever release mechanism, allowing for tool-free release of computer components by pivoting claws and levers to lift the components out of their secured positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional fastening methods are used for computer components, then the components are securely held in place, but tools are required to release them which is inconvenient and impossible in space-constrained areas

Engineering Contradiction:
ImproveEase of component releaseVSAvoidRelease mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The release mechanism is designed to be self-operating through a spring-loaded plunger that automatically engages with a cam on the component. When the component is inserted, the spring forces the plunger to engage the cam, securing the component without requiring additional fastening tools. The component's own insertion motion triggers the engagement, making the system self-service.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

A cam mechanism acts as an intermediary between the component and the release system. The cam translates the linear insertion motion of the component into rotational engagement with the plunger, mediating the interaction between the component and the securing mechanism. This intermediary allows simple linear motion to achieve secure engagement without complex fastening procedures.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If standard release mechanisms are used, then components can be removed, but space limitations in the computer chassis make tool usage impossible

Engineering Contradiction:
ImproveComponent accessibilityVSAvoidAvailable space in chassis
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The system uses the component's own insertion motion to trigger the release mechanism. When the component is pulled out, the spring automatically pushes the plunger to disengage from the cam, eliminating the need for external tools. This self-service approach works within the confined space because no additional actuation space is required.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The release mechanism transitions from a static locked state to a dynamic release state through the motion of the component itself. The spring-loaded plunger dynamically adjusts its position based on the component's insertion depth, automatically engaging when inserted and disengaging when removed, adapting to the space constraints without requiring fixed actuation points.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If multiple tools are carried for different release scenarios, then various components can be released, but this increases the complexity and burden on the user

Engineering Contradiction:
ImproveCompatibility with different componentsVSAvoidNumber of tools required
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The release mechanism is designed with universal compatibility through standardized cam engagement features. The plunger-cam interface can accommodate different component types as long as they have the standardized cam feature, allowing a single release mechanism to serve multiple functions across different component types, eliminating the need for multiple specialized tools.

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

Solution Approach 2:

The release system is segmented into independent plunger-cam pairs, each capable of operating autonomously. This segmentation allows the same basic mechanism to be replicated for different components without increasing the complexity of the individual mechanism, as each segment operates independently with the same simple principle.

Inventive Principle:
Principle #1Segmentation

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 the easy and tool-free removal of computer components from space-constrained areas, improving accessibility and reducing the need for multiple tools.

Implementation Method 1

a resilient component biased in a direction to move the latch from the first position to the second position

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a push lever release mechanism, allowing for tool-free release of computer components by pivoting claws and levers to lift the components out of their secured positions

Methodology Applied
Scientific EffectLever: Lever

Data Source

PatentEP3543826B1Mechanism to release cards and other components from computer
Publication Date: 2025.01.22 QUANTA COMPUTER INC
  • EP3543826B1 patent drawingFigure 1
  • EP3543826B1 patent drawingFigure 2A~2B
  • EP3543826B1 patent drawingFigure 2C~2D

AI summary

This disclosure relates to a structure that conveniently and easily releases computer components from a supporting structure. A typical computer component would be a PCIe card within a GPU tray. The disclosed structure does not require the use of tools to release computer components, and can be used where computer components ordinarily cannot be released due to limitations of space. The structure lifts the computer component to a height where the computer component can be easily grasped by human fingers for removal of the component.