Hinge Assembly Mode Switching for Foldable Displays
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Solution Overview
Problem
Foldable electronic devices face challenges in switching usage modes intuitively while maintaining structural stability, particularly when transitioning from a conventional notebook computer mode to a larger display mode, as the hinge mechanism needs to accommodate user convenience and stability.
Innovation Solution
The electronic device incorporates a hinge assembly with a bearing base, a movable base, first and second hinge mechanisms, and a switching member, which includes a sliding mechanism and magnetic elements to facilitate smooth mode switching by allowing the second body to rotate relative to the movable base, ensuring stability and ease of operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the hinge mechanism is designed to allow lateral juxtaposition for larger display mode, then the display area is improved, but the structural stability deteriorates
Solution Approach 1:
The hinge mechanism is divided into two independent hinge mechanisms (first hinge mechanism connected to second body, second hinge mechanism connected to bearing base) that can operate independently. This segmentation allows the display to achieve lateral juxtaposition for larger display area while each hinge mechanism maintains structural stability through independent operation.
Solution Approach 2:
A switching member is introduced as an intermediary component between the first and second hinge mechanisms. This switching member controls the engagement and disengagement of the hinge mechanisms, enabling smooth transition between usage modes while maintaining structural stability during switching.
2Adaptability or versatility
If the hinge mechanism is redesigned for lateral juxtaposition, then the usage mode versatility is improved, but the ease of operation deteriorates
Solution Approach 1:
The switching member is designed to automatically engage and disengage the hinge mechanisms based on the display's position and user input. The system self-regulates the switching between usage modes without requiring complex manual intervention, improving ease of operation while maintaining versatility.
Solution Approach 2:
Magnetic elements are introduced to replace or assist traditional mechanical switching mechanisms. The magnetic attraction and repulsion forces enable automatic engagement and disengagement of the hinge mechanisms, making the operation more intuitive and easier for users while supporting multiple usage modes.
3Adaptability or versatility
If a complex hinge mechanism is used for mode switching, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The complex hinge mechanism is segmented into two independent hinge mechanisms with distinct functions. The first hinge mechanism handles the second body's movement, while the second hinge mechanism handles the bearing base's movement. This segmentation reduces overall complexity by allowing each mechanism to be simpler and more specialized.
Solution Approach 2:
The switching member serves multiple functions: it controls the engagement of the first hinge mechanism, controls the engagement of the second hinge mechanism, and provides magnetic assistance for automatic switching. This multi-functionality reduces the need for additional components, thereby reducing device complexity while maintaining adaptability.
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 configuration enables users to intuitively switch between usage modes while maintaining structural stability, allowing the second body to rotate 180 degrees for a larger display mode and automatically returning to the conventional mode, enhancing user experience and device usability.
Implementation Method 1
The hinge assembly further includes a first magnetic element, a second magnetic element, a third magnetic element and a fourth magnetic element... The second magnetic element is disposed on the switching member and magnetically different from the first magnetic element
Data Source
AI summary
An electronic device includes a first body, a second body and a hinge assembly. The hinge assembly includes a bearing base, a movable base, a first hinge mechanism, a second hinge mechanism and a switching member. The bearing base is connected to the first body and has a first engaging portion. The first hinge mechanism is connected between the movable base and the second body. The second hinge mechanism is connected between the movable base and the bearing base. The first and second hinge mechanisms are connected to adjacent sides of the movable base. The switching member includes a main body slidably connected to the movable base in a switching direction, a second engaging portion engaged with or disengaged from the first engaging portion as the main body moves, and an interference portion entering or exiting the first hinge mechanism as the main body moves.