Folding Mobile Terminal Dual-Axis Hinge Mechanism

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Solution Overview

Problem

Folding mobile terminals have limited flexibility in expansion, affecting user experience due to restricted rotation directions between connected parts.

Innovation Solution

A folding mobile terminal design featuring a connecting clamp with intersecting or non-coplanar axes, allowing the second housing to rotate relative to the first housing in multiple directions, enhancing expansion flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two parts are connected via rotation with a single rotation direction, then the structure is simple, but the folding flexibility is limited

Engineering Contradiction:
Improvefolding flexibilityVSAvoidconnection structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a second rotation direction perpendicular to the first rotation direction, transforming a single-degree-of-freedom connection into a two-degree-of-freedom connection. This dimensional change enables the folding mobile terminal to achieve multiple expanded states and improved folding flexibility without excessively complicating the overall structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The connection structure is designed to be dynamically adjustable, allowing rotation in multiple directions depending on user needs. The first and second rotation directions enable the terminal to transition between different configurations (folded, partially expanded, fully expanded, and various intermediate states), making the structure adaptable rather than fixed.

Inventive Principle:
Principle #15Dynamics

2Area of moving object

If the overall size of the mobile terminal is determined, then portability is improved, but the screen-to-body ratio cannot be increased

Engineering Contradiction:
Improvescreen areaVSAvoidterminal size
Core Design Contradiction:
Area of moving objectVSLength of stationary object

Solution Approach 1:

The mobile terminal employs a dynamic folding mechanism that allows the device to transform between a compact folded state for portability and an expanded state with a larger effective screen area. The connection structure enabling rotation in multiple directions facilitates smooth transitions between these states, allowing users to carry the device compactly while accessing a larger display when needed.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3890282B1Folding mobile terminal
Publication Date: 2023.06.07 VIVO MOBILE COMM CO LTD
  • EP3890282B1 patent drawingFigure 1~2
  • EP3890282B1 patent drawingFigure 3
  • EP3890282B1 patent drawingFigure 4~5

AI summary

Disclosed in the present disclosure is a folding mobile terminal, comprising a first housing (100), a first screen (200), a second housing (300), a second screen (400), and a connection support (500). The first screen (200) is arranged on the first housing (100); the second screen (400) is arranged on the second housing (300); the first housing (100) is connected to the second housing (300) by means of the connection support (500), one end of the connection support (500) is rotatably connected onto the first housing (100) and may rotate around a first axis (A); the second housing (300) is rotatably connected to another end of the connection support (500) and may rotate around a second axis (B); and the first axis (A) and the second axis (B) intersect or skew.