Foldable-Segment Protective Cover to Eliminate Magnetic Interference
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Solution Overview
Problem
Existing protective covers for electronic devices that use magnets to form typing and standing cradles can degrade the performance of magnetic field sensors and antennas, and are prone to separation or collapse under external pressure, failing to provide stable support for typing and viewing modes.
Innovation Solution
A protective cover design that utilizes foldable segments and a catching mechanism to form cradles without magnets, allowing for improved support and stability in typing and standing modes while preventing interference with electronic device sensors and antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a magnet is used to form a typing cradle or standing-view cradle in the protective cover, then the cradle function is achieved, but the performance of the magnetic field sensor and antenna in the portable electronic device is degraded
Solution Approach 1:
The patent removes the magnet from the protective cover entirely, extracting the harmful magnetic field source while preserving the cradle function through mechanical means. The cradle is formed by folding the front cover itself into specific angular configurations, eliminating the need for magnetic attraction and thus preventing interference with the device's magnetic field sensor and antenna.
2Adaptability or versatility
If only a magnet is used to form the typing cradle or standing-view cradle, then the cradle function is achieved, but the cradle is easily separated or laid down when external pressure is applied
Solution Approach 1:
The patent employs a dynamic folding mechanism where the front cover can be folded along predetermined fold lines to form stable angular structures. This dynamic configuration allows the cradle to adapt to different viewing angles while maintaining structural stability through geometric locking rather than magnetic attraction, preventing the cradle from collapsing under external pressure.
Solution Approach 2:
The front cover is divided into multiple segments or panels connected by fold lines, allowing it to be folded into stable geometric configurations. This segmentation enables the cradle to maintain its shape through structural geometry rather than relying on magnetic force, providing stability when external pressure is applied.
3Adaptability or versatility
If a magnet is used in the protective cover, then the cradle function is achieved, but the structure becomes more complex
Solution Approach 1:
The front cover serves multiple functions: it protects the display surface when closed and forms the cradle structure when folded. This multi-functionality eliminates the need for separate magnetic components, simplifying the overall structure while maintaining the cradle capability. The foldable design integrates the cradle function directly into the existing cover structure.
Data Source
AI summary
A protective cover is provided that protects an electronic device. The protective cover includes a front cover having a front surface and a rear surface. The rear surface of the front cover is disposed over a front surface of the electronic device when the protective cover is closed. The protective cover also includes a rear cover connected with the front cover and having a front surface and a rear surface. The rear surface of the rear cover is disposed on a rear surface of the electronic device. The protective cover further includes a plurality of foldable segments disposed on the rear surface of the front cover. The plurality of foldable segments are unfolded for use as a stand of the protective cover and are folded for storage within the rear surface of the front cover.