Elastic Padding in Foldable Hinge Chain for Dust Protection

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Solution Overview

Problem

Commercially available foldable electronic devices have complex hinges that lack waterproof and dustproof capabilities, which can lead to reduced lifespan and functionality.

Innovation Solution

A foldable electronic device with a hinge structure comprising a chain and elastic padding, where the elastic padding is integrated into the chain units to provide moisture and particle protection, enabling the hinge to guide folding and unfolding while maintaining a simple design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complex hinge structure is used in foldable electronic devices, then the device can achieve folding functionality, but the hinge lacks waterproof and dustproof capability

Engineering Contradiction:
Improvewaterproof and dustproof capabilityVSAvoidhinge structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The elastic padding is nested within the chain unit structure, with the padding inserted into the hollow space formed by interconnected metal plates. This nesting approach allows the sealing element to be integrated into the existing hinge structure without adding external components, achieving waterproof and dustproof capability while maintaining structural simplicity

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The elastic padding is strategically placed at specific locations within the chain units where gaps between metal plates create potential ingress paths for moisture and particles. By applying sealing material only at these critical locations rather than throughout the entire hinge structure, the patent achieves protection against environmental factors without requiring complete structural redesign

Inventive Principle:
Principle #3Local quality

2Reliability

If elastic padding is integrated into chain units, then waterproof and dustproof capability is improved, but the hinge structure becomes more complex

Engineering Contradiction:
Improveprotection against moisture and particlesVSAvoidchain unit structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The elastic padding is merged with the chain unit structure by inserting it into the hollow space formed by interconnected metal plates. This combining approach integrates the sealing function directly into the existing mechanical structure, eliminating the need for separate sealing components and reducing overall structural complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The elastic padding utilizes the existing hollow space within the chain units as its housing, eliminating the need for additional sealing chambers or complex mounting structures. The chain unit structure itself provides the containment space for the elastic padding, making the sealing system self-contained and simplifying the overall design

Inventive Principle:
Principle #25Self-service

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

The integration of elastic padding in the hinge device enhances its waterproof and dustproof capabilities, prolonging the lifespan of the device by preventing moisture and particle ingress, while allowing for smooth folding and unfolding of flexible components.

Implementation Method 1

the elastic padding can block particles and moisture from entering the chain

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The elastic padding is disposed at least one of in the recess of the first chain unit or between the first pivot portion and the second pivot portion

Methodology Applied
Scientific EffectPhysical sealing: Physical Containment

Data Source

PatentUS11785730B2Foldable electronic device including a chain and at least one elastic padding
Publication Date: 2023.10.10 TPK ADVANCED SOLUTIONS
  • US11785730B2 patent drawing
  • US11785730B2 patent drawing
  • US11785730B2 patent drawing

AI summary

A foldable electronic device includes a frame, a flexible component disposed on the frame, and a hinge device. The hinge device includes a chain and at least one elastic padding. The chain is connected to the frame and includes a plurality of chain units. The elastic padding is disposed in at least one of the chain units or encapsulates at least one of the chain units.