Rolling Contact Driving Mechanism for Display Module
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Solution Overview
Problem
Conventional driving mechanisms for touch panels in portable electronic devices face issues with smooth and stable operation due to high friction, wear, and instability, especially as hinges age and lose their ability to facilitate smooth sliding.
Innovation Solution
A driving mechanism featuring a protruding structure, such as rollers, ball bearings, or protruding bars, that allows the display module to slide relative to the host module in line or point contact, reducing friction and wear by using rolling or point contact instead of sliding contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional hinge is used to drive the touch panel to slide relative to the host device, then the touch panel can be pivoted and slid, but the operation becomes unstable with larger friction and wear over time
Solution Approach 1:
The patent employs a ball bearing as the protruding structure to replace the conventional hinge sliding mechanism. The ball bearing utilizes spherical geometry to enable rolling motion instead of sliding friction, significantly reducing friction and wear. The ball bearing is disposed on the host module fixing component and contacts the inner side of the host module, allowing smooth pivoting and sliding operations while maintaining stability over time.
Solution Approach 2:
The patent changes the contact mode from sliding contact to rolling contact by introducing the ball bearing protruding structure. This parameter change in the motion type transforms the friction characteristics from high sliding friction to low rolling friction, thereby improving ease of operation and long-term reliability simultaneously.
2Adaptability or versatility
If a hinge mechanism is used for pivoting the display module, then rotation is enabled, but friction increases and causes abrasion after a span of time
Solution Approach 1:
The ball bearing protruding structure utilizes spherical geometry to enable the pivoting function while reducing wear. The ball bearing rolls along the inner side of the host module, allowing the display module to pivot relative to the host module without the abrasion problems associated with conventional hinge sliding mechanisms.
Solution Approach 2:
The patent replaces the conventional mechanical hinge sliding system with a ball bearing rolling system. This substitution changes the fundamental mechanical interaction from sliding friction to rolling friction, thereby extending the service life of the pivoting mechanism while maintaining its adaptability.
3Ease of operation
If a sliding structure is used to move the display module, then the display can be opened and closed, but the structure generates larger friction and worse stability
Solution Approach 1:
The ball bearing protruding structure employs spherical geometry to transform the sliding motion into rolling motion. When the display module is opened or closed, the ball bearing rolls along the inner side of the host module, significantly reducing friction compared to conventional sliding structures and improving operational stability.
Solution Approach 2:
The patent changes the motion parameter from sliding contact to rolling contact through the ball bearing mechanism. This parameter change reduces the friction coefficient and improves the stability of the opening and closing operation, making the device more reliable over time.
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
This solution provides a stable, smooth, and practical mechanism that reduces friction and wear, enhancing the operational stability and durability of the device.
Implementation Method 1
The at least one protruding structure is a roller or a ball bearing capable of rolling relative to the inner side of the host module in line contact manner
Implementation Method 2
capable of moving relative to an inner side of the host module in line contact manner or point contact manner as the pivoting component drives the host module fixing component to move
Data Source
AI summary
A driving mechanism for driving a display module to move relative to a host module includes a display module fixing component disposed in the display module, a host module fixing component movably disposed in the host module, and a pivoting component. An end of the pivoting component is pivotally connected to the display module fixing component and another end of the pivoting component is fixed to the host module fixing component. The pivoting component drives the host module fixing component to move as being pivoted by the display module fixing component. The driving mechanism further includes at least one protruding structure disposed on the host module fixing component and capable of moving relative to an inner side of the host module in line contact manner or point contact manner as the pivoting component drives the host module fixing component to move.