Multi-shaft Pivot Mechanism for Laptop Display Rotation
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Solution Overview
Problem
Conventional pivot shaft devices in electronic apparatuses limit the displacement and rotation range of display modules, obstructing heat dissipation and making it difficult for users to operate keyboards due to insufficient distance and angle adjustment.
Innovation Solution
A multi-shaft pivot shaft device with an assembled section, a fixed section, a drive unit, and a reaction module, where the drive unit and linking module are pivotally connected with a shaft system, allowing the display module to be moved and rotated to increase the distance between sections, enhance heat dissipation, and facilitate user operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a conventional pivot shaft device is used, then the structure is simple, but the displacement and rotation range of the display module is limited
Solution Approach 1:
The pivot shaft device is divided into multiple independent sections (first pivot shaft section, second pivot shaft section, third pivot shaft section) that can rotate relative to each other. This segmentation allows the display module to achieve larger displacement and rotation ranges while maintaining a relatively simple overall structure, as each section contributes to the total movement independently.
Solution Approach 2:
The patent employs a nested configuration where the first, second, and third pivot shaft sections are arranged concentrically with shared rotation centers. The display module is nested within the pivot shaft structure, allowing multiple rotation axes to be compactly integrated. This nesting enables complex motion paths in a compact space without significantly increasing external dimensions.
2Temperature
If a conventional pivot shaft device is used, then the structure is compact, but heat dissipation is obstructed due to insufficient distance between sections
Solution Approach 1:
The pivot shaft device enables dynamic adjustment of the distance between the assembled section and the fixed section through rotation of the pivot shaft sections. As the display module rotates and displaces, the heat dissipation opening system on the rear side of the apparatus body module maintains an optimized distance relationship, preventing obstruction and ensuring efficient heat dissipation throughout the operating range.
3Ease of operation
If a conventional pivot shaft device is used, then the structure is simple, but the display module cannot be lowered to raise the apparatus body module for easy keyboard operation
Solution Approach 1:
The patent introduces multi-dimensional movement capability through the three-section pivot shaft mechanism with different rotation centers. The display module can move not only in the opening/closing direction but also in vertical and lateral directions. This enables the display module to be lowered while raising the apparatus body module, creating an ergonomic configuration for keyboard operation without requiring overly complex mechanisms.
4Length of moving object
If the pivot shaft specification is enlarged to increase displacement range, then the moving range increases, but the device size and complexity increase
Solution Approach 1:
Instead of using a single large-diameter pivot shaft, the invention segments the rotation mechanism into three smaller pivot shaft sections with different rotation centers. Each section contributes a portion of the total rotation range, achieving the cumulative effect of a large rotation range while keeping individual component specifications small and manageable.
Solution Approach 2:
The nested arrangement of the three pivot shaft sections with shared rotation centers allows the mechanism to achieve a large effective rotation range within a compact physical footprint. The concentric configuration enables multiple rotation axes to be integrated without requiring proportional increases in overall device size.
Data Source
AI summary
A multi-shaft pivot shaft device includes an assembled section mounted on the display module, a fixed section disposed on an apparatus body module and a drive unit (or transmission module and linking module) disposed between the assembled section and the fixed section and/or a reaction module disposed between the assembled section and drive unit. The assembled section, fixed section and the drive unit are pivotally connected with a shaft system. When the assembled section moves from an initial position to a set position, the drive unit is displaced (lowered) and/or the assembled section is moved back (to adjust the angle) so as to achieve a complex moving effect. In addition, the display module raises the apparatus body module and the display module is automatically positioned in an angle or a position for a user to easily watch.