Dual-Shaft Pivot Structure Assembly for Electronic Devices

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Solution Overview

Problem

Current pivot structures in electronic devices, such as notebook computers, lack an integral design that can adapt to different patterns and sizes, leading to suboptimal usage and aesthetics, as they primarily consider single hinge modules without a comprehensive configuration mode.

Innovation Solution

A pivot structure assembly featuring a fixed cover with dual-shaft hinge modules, where the first and second shafts provide different friction forces and rotation torques, allowing for adjustable pivot angles and center of gravity movement, enabling the electronic device to be optimally positioned and aesthetically designed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single hinge module is used in the pivot structure, then the design is simple, but the pivot structure cannot match different patterns of electronic devices to achieve optimal design

Engineering Contradiction:
Improvepivot structure designVSAvoidadaptability to different device patterns
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The pivot structure is divided into multiple hinge modules (first hinge module and second hinge module), each with independent shafts and brackets. This segmentation allows each module to be optimized for specific functions while collectively providing adaptability to different device patterns and sizes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hinge modules are designed with universal applicability to accommodate different electronic device patterns. The first and second shafts can provide different friction forces and rotation torques, enabling the same pivot structure to adapt to various device configurations including notebook computers and tablet PCs.

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

2Adaptability or versatility

If multiple hinge modules are used in the pivot structure, then the adaptability to different device patterns is improved, but the design complexity increases

Engineering Contradiction:
Improveadaptability to different device patternsVSAvoidpivot structure design
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The pivot structure is divided into multiple hinge modules (first hinge module and second hinge module), each with independent shafts and brackets. This segmentation allows each module to be optimized for specific functions while collectively providing adaptability to different device patterns.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple hinge modules are combined in a coordinated manner within the pivot structure. The first and second shafts work together with their respective brackets to provide composite pivot functionality, achieving adaptability while managing complexity through integrated design.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If the first and second shafts provide different friction forces, then the pivot rotation control is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvepivot rotation controlVSAvoidfriction force differentiation
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The first and second shafts are designed with different local properties to provide different friction forces. This local differentiation allows optimized pivot rotation control at each axis while maintaining manufacturability through targeted design variations rather than requiring extreme precision across all components.

Inventive Principle:
Principle #3Local quality

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 the electronic device to pivot smoothly and efficiently, allowing the first body to rotate relative to the second body by 180 degrees, improving user experience and design aesthetics by adjusting the composition and configuration of hinge modules according to device size and pattern.

Implementation Method 1

When the first bracket and the second bracket pivotally rotate relatively to the torque element, the first axle sleeve and the second axle sleeve respectively provide different friction forces to the first shaft and the second shaft

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

The first and second axle sleeves respectively provide different rotation torques to the brackets through the shafts

Methodology Applied
Scientific EffectTorque: Torque

Data Source

PatentUS10365694B2Pivot structure assembly and electronic device
Publication Date: 2019.07.30 COMPAL ELECTRONICS INC
  • US10365694B2 patent drawing
  • US10365694B2 patent drawing
  • US10365694B2 patent drawing

AI summary

A pivot structure assembly including a fixed cover and a hinge module is provided. The hinge module includes a torque element, a first shaft, a second shaft, a first bracket and a second bracket. The torque element is fixed on the fixed cover and has a first and a second axle sleeves, parallely disposed at two opposite sides of the torque element. The first shaft is disposed through the first axle sleeve, and the second shaft is disposed through the second axle sleeve. The first bracket is pivotally disposed on the torque element through the first shaft, and the second bracket pivotally disposed on the torque element through the second shaft. When the first and second brackets rotate relatively to the torque element, the first and second axle sleeves respectively provide different friction forces to the first and second shafts. In addition, an electronic device is also mentioned.