Magnetic Force Output Guide for Foldable Device
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Solution Overview
Problem
Existing foldable electronic devices require a large magnetic body to maintain the folding state, which restricts the mounting space for electronic components due to magnetic field interference, necessitating additional shielding structures.
Innovation Solution
A guide structure that enhances the magnetic force while minimizing the size of the magnetic body by expanding the magnetic field area only at the upper end, reducing interference with electronic components and eliminating the need for shielding, allowing for a smaller magnet and increased mounting space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a large magnetic body is used to maintain the folding state, then the magnetic force is sufficient, but the mounting space for electronic components is restricted
Solution Approach 1:
The magnetic force output guide is configured to expand the magnetic field area only at the upper end portion where it is needed for maintaining the folding state, while keeping the magnetic field area small at the lower end portion to reduce interference with electronic components. This localized differentiation of magnetic field distribution allows sufficient magnetic force where required while minimizing space occupation and interference elsewhere.
Solution Approach 2:
The magnetic force output guide extends in the direction of the display (upper surface direction), transforming the magnetic field distribution from a uniform three-dimensional expansion to a directed expansion primarily in the vertical dimension. This dimensional transformation allows the magnetic field to reach the display effectively while keeping the horizontal footprint small, thus preserving mounting space.
2Force
If a large magnetic body is used to maintain the folding state, then the magnetic force is sufficient, but magnetic field interference with electronic components increases
Solution Approach 1:
The magnetic force output guide creates a non-uniform magnetic field distribution with high magnetic field strength at the upper end portion (toward the display) and reduced magnetic field strength at the lower end portion (away from the display). This localized quality differentiation ensures strong magnetic force where needed for folding maintenance while minimizing magnetic field interference with electronic components in other areas.
3Area of stationary object
If the size of the magnetic body is reduced, then the mounting space increases, but the magnetic force decreases
Solution Approach 1:
The magnetic force output guide acts as an intermediary structure between the magnetic force generating source and the display. It amplifies and directs the magnetic field from the compact magnetic force generating source toward the display, enabling a small magnet to produce sufficient magnetic force at the required location without increasing its size or creating excessive interference elsewhere.
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 solution ensures robust folding performance with reduced magnetic interference, minimizing the impact on internal components and eliminating the need for additional shielding, thereby optimizing the internal space for other electronic configurations.
Implementation Method 1
a magnetic body having a predetermined size or more is required to secure a magnetic force
Implementation Method 2
at least a portion of the magnetic force output guide extends in a direction of the display
Data Source
AI summary
An electronic device according to various embodiments may include: a display; a rear plate disposed in a direction opposite to the display; a side member surrounding a space between the display and the rear plate and including a support member configured to support the display; and at least one magnetic structure included in at least a portion of the side member. Where the at least one magnetic structure includes a magnetic force generating source and a magnetic force output guide connected to the magnetic force generating source, and at least a portion of the magnetic force output guide extends in a direction of the display. Where at least a portion of the magnetic force output guide includes a structure formed in a direction of an upper surface of the side member.