Foldable Housing Assembly Hinge Positioning Mechanism

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current foldable electronic devices face challenges in providing a robust and flexible housing assembly that allows for seamless folding and unfolding while maintaining the structural integrity and display quality of large screen devices, often resulting in deformation and limited user convenience.

Innovation Solution

A housing assembly comprising a first and second housing with a connecting module that includes a connecting member, a coupling member, positioning members, and a hinge shaft, where the coupling member is slidably coupled to the housings and the positioning members guide the hinge shaft to prevent detachment and deformation, allowing for flexible folding and unfolding configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a large display panel is used to improve user experience and visual effect, then the screen size is increased, but the device becomes difficult to carry due to large size

Engineering Contradiction:
Improvedisplay screen areaVSAvoidportability
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The housing assembly is divided into a first housing and a second housing that can rotate relative to each other, allowing the large display panel to be segmented across two separable sections. This enables the device to be folded into a compact form for portability while maintaining the large total display area when unfolded.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connecting module enables dynamic transformation between folded and unfolded states through rotational movement. The housing assembly can transition from an extended configuration providing large screen area to a compact folded configuration for easy carrying, adapting to different usage scenarios.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the housing assembly is made flexible to allow folding and unfolding, then portability is improved, but structural integrity and display quality may be compromised due to deformation

Engineering Contradiction:
Improvefolding flexibilityVSAvoidstructural integrity
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The housing is segmented into rigid first and second housing sections connected by a specialized connecting module. This segmentation allows the majority of the structure to remain rigid for stability while only the connecting portion provides flexible rotational movement, preventing deformation of the display panel and maintaining structural integrity during folding operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connecting module acts as an intermediary between the first and second housings, providing a controlled hinge mechanism that enables folding while maintaining structural stability. This intermediary component absorbs the mechanical stress of folding and unfolding, protecting the display panel and housing structure from deformation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If a simple connecting mechanism is used to reduce device complexity, then manufacturing is easier, but the connecting mechanism cannot provide sufficient support and positioning during folding

Engineering Contradiction:
Improveconnecting mechanism complexityVSAvoidpositioning accuracy
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The connecting module integrates multiple functions into a single assembly: it provides rotational connectivity between housings, positions the hinge shaft through positioning members, supports the coupling member during sliding movement, and enables both folded and unfolded configurations. This multi-functionality achieves reliable positioning without proportionally increasing overall device complexity.

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

Data Source

PatentEP3686713B1Housing assembly and electronic device
Publication Date: 2021.09.01 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • EP3686713B1 patent drawingFigure 1
  • EP3686713B1 patent drawingFigure 2
  • EP3686713B1 patent drawingFigure 3~4

AI summary

A housing assembly (100) includes a first housing (10) and a second housing (20). The housing assembly (100) includes a connecting module (30) coupled between the first housing (10) and the second housing (20). The connecting module (30) includes a connecting member (31) and a coupling member (32). The connecting member (31) is coupled between the first housing (10) and the second housing (20). The coupling member (32) includes a hinge shaft (329) with two sliding rods (3291) and a positioning member (34"). The positioning member (34") includes a first end (341") and a second end (342") opposite the first end (341"). The first end (341") is coupled to the connecting member (31), and the second end (342") defines a positioning groove (348"). The sliding rods (3291) are slidably coupled to the positioning groove (348"), and the hinge shaft (329) is slidably coupled to the positioning groove (348").