Laptop Hinge Sleeve Structure for Ventilation and Repairability

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Solution Overview

Problem

Existing laptop computer hinges with press-in designs require long hinge caps that block ventilation holes, limiting cooling capacity and are not easily repairable or replaceable without replacing the entire lid.

Innovation Solution

A hinge design featuring a detachable sleeve inserted into the hinge cap, which centers the hinge shaft and allows for a shorter cap, enabling better ventilation and enabling easy repair or replacement without damaging the lid.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a press-in hinge design is used, then the hinge structure is simple, but the hinge cap length increases blocking ventilation holes

Engineering Contradiction:

Improvehinge structureVSAvoidhinge cap length

Core Design Contradiction:

Device complexityVSLength of stationary object

Solution Approach 1:

The hinge is divided into separate components: a hinge cap, a hinge shaft, and a detachable sleeve. The sleeve is inserted into the hinge cap and then the hinge shaft is inserted into the sleeve, creating a segmented structure that reduces the overall length required while maintaining structural integrity and enabling ventilation.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If a press-in hinge design is used, then the hinge structure is simple, but repair and replacement become difficult

Engineering Contradiction:

Improvehinge structureVSAvoidhinge repairability

Core Design Contradiction:

Device complexityVSEase of repair

Solution Approach 1:

The hinge components (hinge cap, sleeve, hinge shaft) are segmented and designed to be detachably connected. The sleeve can be removed from the hinge cap using a tool, and the hinge shaft can be removed from the sleeve, enabling easy repair and replacement of individual components without replacing the entire lid assembly.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The detachable sleeve acts as an intermediary component between the hinge cap and the hinge shaft. This intermediate element facilitates easy assembly and disassembly, allowing the hinge shaft to be inserted into and removed from the sleeve, which is itself inserted into and removable from the hinge cap, thereby enabling simple repair and replacement.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Stability of the object's composition

If a longer hinge cap is used, then the hinge structure is stable, but ventilation capacity is reduced

Engineering Contradiction:

Improvehinge stabilityVSAvoidventilation area

Core Design Contradiction:

Stability of the object's compositionVSArea of stationary object

Solution Approach 1:

By segmenting the hinge into separate components (hinge cap, sleeve, hinge shaft) with precise fitting interfaces, the design achieves structural stability without requiring a long hinge cap. The segmented structure allows the hinge cap to be shortened, thereby exposing or creating ventilation holes while maintaining hinge stability through the interlocking sleeve and shaft components.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12393235B2Hinges for electronic devices

Publication Date: 2025.08.19 INTEL CORP

AI summary

Hinges for electronic devices are disclosed herein. An example hinge includes a bracket capable of being coupled to a first portion of the electrical device. The bracket has a barrel defining a first opening. The hinge also includes a shaft in the first opening. The shaft is rotatable in the first opening. The hinge further includes a sleeve capable of being inserted into a bore in a second portion of the electronic device. The sleeve defines a second opening to receive a portion of the shaft.