Foldable Magnet Assembly With Tilted Poles for Secure Closure
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Solution Overview
Problem
Foldable electronic devices face issues with maintaining a folded state due to reduced attractive force between magnets when electronic components limit magnet placement and alignment, causing unintended unfolding.
Innovation Solution
The electronic device incorporates a magnet assembly with tilted boundary surfaces in each housing to enhance the attractive force between magnets, ensuring a secure folded state even when they do not perfectly correspond, by optimizing the angle and alignment of magnetic poles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If magnets are arranged to perfectly correspond to each other in respective housings, then the attractive force between magnets increases, but the device complexity increases due to precise alignment requirements
Solution Approach 1:
The patent applies asymmetry by designing the boundary surfaces of magnets at different orientations (first angle for first magnet, second angle for second magnet) rather than requiring symmetric alignment. This asymmetric configuration allows magnets in first and second housings to face each other effectively even when not perfectly aligned, reducing the complexity of precise alignment while maintaining sufficient attractive force.
2Adaptability or versatility
If various electronic components are placed inside the electronic device, then the functionality of the device increases, but the area available for magnet placement is reduced
Solution Approach 1:
The patent applies local quality by optimizing the specific configuration of boundary surfaces at different orientations in the limited space available for magnets. Instead of requiring large magnet areas, the invention focuses on the local geometric arrangement and angular orientation of boundary surfaces to maximize the effectiveness of the limited magnet placement area, enabling sufficient attractive force despite space constraints from electronic components.
3Stability of the object's composition
If magnets are arranged to correspond to each other, then the folded state stability increases, but the manufacturing precision requirement increases
Solution Approach 1:
The patent reduces manufacturing precision requirements by employing asymmetric boundary surface orientations. The first boundary surface is tilted at a first angle and the second boundary surface is tilted at a second angle, creating an asymmetric configuration that is more tolerant of manufacturing variations. This allows magnets to maintain effective facing relationships and generate sufficient attractive force for folded state stability without requiring high-precision alignment during manufacturing.
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 maintains a predetermined level of attractive force between magnets, preventing unintended unfolding and ensuring the device remains folded as intended.
Implementation Method 1
there is an attractive force between the first magnet and the second magnet while the electronic device is in the folded state
Data Source
AI summary
An electronic device is provided that includes a first housing, a second housing connected to the first housing to be rotatable about a folding axis, a display disposed on a front surface of the electronic device, a first magnet arranged in the first housing, and a second magnet arranged in the second housing not to correspond to the first magnet while the electronic device is in a folded state, wherein there is an attractive force between the first magnet and the second magnet, wherein the first magnet includes a first boundary surface that partitions different poles and is tilted at a first angle with respect to the folding axis, wherein the second magnet includes a second boundary surface that partitions different poles and is tilted at a second angle with respect to the folding axis, and wherein the first boundary surface and the second boundary surface face each other.