Foldable Hinge Damping Structure for Wide-Angle Hovering

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Solution Overview

Problem

Current foldable mobile phones can only hover at certain angles and experience wear-out issues with hinge components, leading to diminished damping feedback and user experience.

Innovation Solution

A connection structure with a damping mechanism that allows for hovering at a wide range of angles by generating damping forces to hinder rotation and maintain position, featuring multiple damping mechanisms arranged along a connecting seam to provide uniform force distribution and prolong service life.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single damping mechanism is used in the hinge, then the structure is simple, but the damping force decreases rapidly with wear and the service life is short

Engineering Contradiction:
Improvehinge structureVSAvoiddamping force consistency
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The hinge is divided into multiple damping mechanisms (first, second, and third damping mechanisms) arranged in parallel. Each damping mechanism includes a damping component with damping elements that provide friction-based damping forces. This segmentation allows the total damping force to be distributed across multiple components, so that when individual components wear, the overall damping performance degrades more gradually, extending service life while maintaining acceptable damping levels.

Inventive Principle:
Principle #1Segmentation

2Reliability

If multiple damping mechanisms are used in the hinge, then the service life is extended and damping force consistency is improved, but the device complexity increases

Engineering Contradiction:
Improvedamping force consistencyVSAvoidhinge structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The hinge is divided into multiple damping mechanisms (first, second, and third damping mechanisms) arranged in parallel. Each damping mechanism includes a damping component with damping elements that provide friction-based damping forces. This segmentation allows the total damping force to be distributed across multiple components, so that when individual components wear, the overall damping performance degrades more gradually, extending service life while maintaining acceptable damping levels.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple damping mechanisms are combined within the single hinge structure, with all damping components working together to provide the total damping force. The damping mechanisms are integrated into the hinge assembly, sharing common structural elements and mounting points, which reduces the overall space required and minimizes the increase in complexity despite having multiple damping components.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If current hinge components are used, then the structure is simple, but the hinge can only hover at certain angles and cannot maintain arbitrary angles

Engineering Contradiction:
Improvehinge structureVSAvoidhovering angle range
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The hinge employs multiple damping mechanisms with different damping forces, allowing the system to maintain equilibrium at various angles by balancing the damping forces against gravitational and external forces. The damping forces can be adjusted or selected to enable hovering at specific angles, providing adaptability across a wide range of positions rather than being limited to fixed angles.

Inventive Principle:
Principle #35Parameter changes

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 arbitrary angle hovering and improved user experience through consistent damping feedback, while extending the service life of the connection structure by smoothly reducing damping forces over time.

Implementation Method 1

When the second connecting member rotates from a first position to a second position relative to the first connecting member under an action of an external force, the damping mechanism generates a damping force that hinders the rotation of the second connecting member

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS12074994B2Connection structure and foldable terminal device
Publication Date: 2024.08.27 WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
  • US12074994B2 patent drawing
  • US12074994B2 patent drawing
  • US12074994B2 patent drawing

AI summary

A connection structure and a foldable terminal device are provided. The connection structure includes a first connecting member, a second connecting member, and a damping mechanism connected to the first connecting member and the second connecting member. The damping mechanism is configured to achieve hovering of the first connecting member and the second connecting member, so that arbitrary angle hovering in a wide range of angles can be realized. In addition, a certain sense of damping can be fed back to users through the damping mechanism, so that the user experience is improved.