Double-Shaft Hinge Cover Plate for Hidden Foldable Cables
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Solution Overview
Problem
Foldable electronic devices, such as laptops, often expose cables or flexible heat conductive components at the junction of the screen and main body, leading to aesthetic and safety issues.
Innovation Solution
A shaft assembly comprising double shaft hinges and a main cover plate that pivotally couples the screen and main body, with the main cover plate positioned between the hinges to reduce the exposed area of flexible heat conductive components, ensuring they are hidden and protected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If flexible flat cables and graphite sheets are used in fanless systems, then heat conduction efficiency is improved, but cables and flexible heat conductive components are exposed at the junction causing aesthetic and safety defects
Solution Approach 1:
A cover plate is introduced as an intermediary component between the screen and main body, positioned at the junction area. This cover plate effectively shields and covers the exposed flexible heat conductive components and cables, eliminating the aesthetic defect and safety hazard while maintaining the heat conduction function of the graphite sheet
2Object-affected harmful factors
If the main cover plate is positioned between the double shaft hinges, then the exposed area of flexible heat conductive components is reduced, but the structural complexity of the shaft assembly increases
Solution Approach 1:
The main cover plate serves multiple functions simultaneously: it acts as a structural component of the shaft assembly, provides aesthetic coverage by hiding exposed components, and ensures safety by shielding flexible heat conductive components. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in structural complexity
Data Source
AI summary
A shaft assembly that pivotally couples a first module body to a second module body includes two double shaft hinges and a main cover plate. One end of each double shaft hinge pivotally couples to the first module body, and another end pivotally couples to the second module body. The first module body is pivotable about a first axis with respect to the second module body via the double shaft hinges, and the second module body is pivotable about a second axis with respect to the first module body via the double shaft hinges. The first axis parallels the second axis, and the first axis is closer to the first module body than the second axis to the first module body. The main cover plate is located between the two double shaft hinges, and two ends of the main cover plate are respectively connected to the two double shaft hinges.