Three-Member Planar Assembly Handle for Larger Heat Sinks

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Solution Overview

Problem

Current handle positioning on planar assemblies limits the size of nearby heat sinks, restricting their optimal configuration in information handling systems.

Innovation Solution

A handle design comprising a first, second, and third member, with the second member extending perpendicular from the first and mechanically interfaced between them, featuring planar alignment features to allow a heat sink to extend over the third member, enabling a larger heat sink configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the handle position is defined by the DC-MHS specification, then the handle can be mechanically interfaced between the first member and the third member, but the size of nearby heat sinks is limited

Engineering Contradiction:

Improvehandle mechanical interfaceVSAvoidheat sink size

Core Design Contradiction:

ReliabilityVSLength of stationary object

Solution Approach 1:

The handle is divided into three separate members (first member, second member, and third member) that can be independently positioned and mechanically interfaced. This segmentation allows the handle to be configured in a way that does not constrain heat sink placement, enabling the heat sink to extend over the third member while maintaining reliable mechanical interface points for handle functionality.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If the handle position is constrained by DC-MHS specification, then assembly and removal operations are simplified, but the heat sink configuration is restricted

Engineering Contradiction:

Improveassembly operationVSAvoidheat sink configuration

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The handle design incorporates flexible positioning capabilities where the second member can extend substantially perpendicular from the first member's surface, allowing dynamic adjustment of the handle's spatial configuration. This dynamic structure enables the handle to accommodate various heat sink sizes and configurations while maintaining ease of assembly and removal operations through the mechanically interfaced components.

Inventive Principle:

Principle #15Dynamics

3Length of stationary object

If the handle is positioned to allow heat sink extension, then the heat sink can extend up to 20 mm longer, but the handle structure becomes more complex

Engineering Contradiction:

Improveheat sink lengthVSAvoidhandle structure

Core Design Contradiction:

Length of stationary objectVSDevice complexity

Solution Approach 1:

The handle members are nested in a compact arrangement where the second member extends perpendicular from the first member, and the third member includes alignment features that nest with the planar assembly. This nested configuration allows the heat sink to extend up to 20 mm longer than conventional designs while keeping the handle structure itself compact and manageable, avoiding excessive complexity.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS20250261337A1Planar assembly handle for heat sink optimization

Publication Date: 2025.08.14 DELL PROD LP

AI summary

A handle may include a first member, a second member, and a third member. The second member may extend substantially perpendicular from a first surface of the first member and may be mechanically interfaced between the first member and the third member. The third member may include a plurality of planar assembly alignment features configured to align the handle relative to a planar assembly to enable a heat sink coupled to the planar assembly to extend over the third member.