Foldable Chassis Magnet Locking Structure to Protect Flexible Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic apparatuses face issues with magnets falling off or displacing and contacting displays, leading to potential failures due to poor adhesion or strong impacts.
Innovation Solution
A magnet and attracted body arrangement with a recessed portion and locking mechanism in the chassis members, along with a relief portion to avoid contact with flexible displays, ensuring secure attachment and preventing displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a magnet is attached to a chassis member using adhesive, then the magnet can be secured to prevent opening, but the magnet may fall off when adhesion is poor or during assembly
Solution Approach 1:
The attachment structure is segmented into multiple functional elements: the magnet body, the accommodation hole with side inner wall surface, the locking part protruding from the magnet, and the recessed portion receiving the locking part. This segmentation allows each component to perform its specific function independently, ensuring reliable attachment without complex assembly procedures.
Solution Approach 2:
The locking part of the magnet is inserted into the recessed portion of the accommodation hole, creating a nested structure where one component fits within another. This nesting mechanism provides secure retention of the magnet while maintaining a compact integration within the chassis member structure.
2Reliability
If the magnet is disposed close to the display to prevent opening, then closing reliability is improved, but the magnet may contact the display under strong impact causing failure
Solution Approach 1:
The accommodation hole with its side inner wall surface and bottom wall surface acts as an intermediary structure between the magnet and the display. This intermediate structure provides a controlled environment that prevents direct contact between the magnet and display while maintaining the magnetic attraction force necessary for closing reliability.
Solution Approach 2:
The recessed portion and locking part mechanism provides beforehand cushioning by pre-positioning the magnet in a controlled manner that prevents excessive movement toward the display during impact. The structure anticipates potential impact forces and builds in protective geometry to cushion against harmful movements.
3Ease of manufacture
If the magnet is freely positioned in the accommodation hole, then assembly is easier, but the magnet may displace under impact and contact the display
Solution Approach 1:
The attachment structure incorporates dynamic elements that allow the magnet to be easily inserted during assembly (opening portion facing the side of the second wall portion), while automatically providing stable positioning once assembled through the locking part engaging with the recessed portion. This dynamic design adapts to both assembly and operational requirements.
Solution Approach 2:
The accommodation hole is pre-formed with the opening portion and recessed portion in specific positions and orientations. This preliminary structuring guides the magnet into the correct position during assembly while ensuring stable positioning is automatically achieved upon insertion, eliminating the need for additional positioning steps.
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
Prevents magnets from falling off and contacting displays, maintaining structural integrity and preventing failures, even under impact.
Implementation Method 1
an attracted body that is attached to the second wall portion and attracts the magnet in the first posture
Data Source
AI summary
An electronic apparatus includes: a first chassis member that has a first wall portion; a second chassis member that has a second wall portion and is adjacent to the first chassis member; a hinge device that connects the first chassis member and the second chassis member to be relatively rotatable between a first posture, in which the first chassis member and the second chassis member are laminated so as to overlap each other in a surface normal direction, to dispose the first wall portion and the second wall portion at positions facing each other, and a second posture in which the first chassis member and the second chassis member are arranged side by side in a direction perpendicular to the surface normal direction; and a magnet that has a side surface and a bottom surface and is attached to the first wall portion.