Portable Computer Display Sliding Assembly Friction Reduction
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Solution Overview
Problem
Existing portable computers, such as notebook PCs, face challenges in stabilizing the display at a tilted angle for touch operations due to torque and vibration issues, and previous solutions are either not suitable for notebook PCs or are aesthetically unpleasant and bulky.
Innovation Solution
A portable computer design featuring a base, display module, and supporting elements with a sliding assembly that allows the display to rotate and slide to a desired angle, using a sliding block and slide rail with auxiliary structures to reduce friction and provide stable support, enabling smooth operation and aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a reactive torsion of a pivot bearing is used to keep the display at a fixed position, then the display can be stabilized at a tilted angle, but the display vibrates back and forth when touched due to generated torque
Solution Approach 1:
A support arm is introduced as an intermediary component between the display and the base. The support arm includes a first pivot bearing connecting the display and a second pivot bearing connecting to the base, acting as a mediator to transfer and stabilize the display position while reducing direct torque transmission to the display panel itself.
Solution Approach 2:
The support structure is segmented into multiple components: the support arm, first pivot bearing, second pivot bearing, and limiting mechanism. This segmentation allows each component to perform its specific function - the pivot bearings provide rotational freedom, the support arm provides structural support, and the limiting mechanism prevents excessive movement, collectively reducing vibration while maintaining stability.
2Ease of operation
If a support arm with pivot bearings is used to support the display, then the display can be positioned at a tilted angle, but the structure becomes complicated and bulky
Solution Approach 1:
Multiple functions are merged into the support arm structure. The support arm simultaneously provides structural support, enables tilted positioning through pivot bearings, and incorporates a limiting mechanism to prevent excessive rotation. This integration reduces the need for separate components and simplifies the overall structure while maintaining operational ease.
3Adaptability or versatility
If the display is allowed to rotate freely for touch operations, then the user can adjust the viewing angle, but the display may topple and fall backwards when too much force is applied
Solution Approach 1:
The support system provides dynamic support through the support arm that can rotate with the display as the user adjusts the viewing angle. The first and second pivot bearings enable smooth rotation while the support arm maintains continuous support. This dynamic adaptability allows free adjustment while preventing the display from toppling.
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
The design allows for stable and smooth tilting of the display, enhancing user experience by reducing vibration and providing better viewing and operating conditions while maintaining a compact and aesthetically pleasing form factor.
Implementation Method 1
The sliding block comprises at least one auxiliary sliding structure to reduce friction between the sliding block and the slide rail
Implementation Method 2
the display is kept in a fixed position by a reactive torsion of a pivot bearing between the display and the base
Data Source
AI summary
A portable computer includes a base, a display module, at least one supporting element and at least one sliding assembly. The base includes a first area and a second area. The display module includes a connect end and a display face. Each supporting element includes a first end pivoted on a portion of the display module other than the display face and a second end pivoted on the rear end of the base. Each sliding assembly includes a slide rail disposed at least in the second area and a sliding block connected with the connect end and moved along the slide rail. Each sliding block includes at least one auxiliary sliding structure for decreasing sliding friction.