Flip Cover Magnetic Attachment and Position Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional flip covers for electronic devices lack a mechanism to securely fix the cover member to the device, leading to inconvenience during use and a compromised luxurious design due to exposed fixing units and limited protection for the display unit.
Innovation Solution
An electronic device with a rotatable flip cover featuring a magnet member, a ferromagnetic body, and a Hall sensor that senses the magnetic flux to determine the cover's position and angle, allowing for automatic mode switching and secure attachment without external fixing units, thus enhancing user convenience and design aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a magnet member and ferromagnetic body are used for attachment, then the cover member can be securely fixed to the device, but the fixing units may be exposed to the outside compromising the luxurious design
Solution Approach 1:
The magnet member is embedded within the cover member and the ferromagnetic body is embedded within the device body, with both structures nested inside the respective components. This nesting arrangement provides secure magnetic attachment while completely hiding the fixing units from external view, maintaining the luxurious design aesthetics.
2Measurement precision
If a Hall sensor is used to sense magnetic flux, then the cover position and angle can be accurately detected, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical position detection mechanisms with a magnetic field-based sensing system. The Hall sensor detects the position and angle of the cover by sensing changes in magnetic flux from the magnet member, eliminating the need for mechanical switches, potentiometers, or optical encoders while achieving accurate detection.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the cover member and the sensing system. The magnet member generates a magnetic field that serves as the mediator, allowing the Hall sensor to indirectly detect cover position and angle without direct mechanical contact or complex transmission mechanisms.
3Device complexity
If the cover member is simply positioned on the display unit surface, then the design remains simple, but the display unit lacks adequate protection from scratches and damage
Solution Approach 1:
The patent employs a flexible cover member with a curved or contoured shape that conforms to the display unit surface. This curvature allows the cover to wrap around the edges and corners of the display unit, providing comprehensive protection against scratches and impacts while maintaining a sleek, integrated appearance.
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 enables the electronic device to recognize and respond to the cover's position and angle, providing secure attachment, improved user experience, and maintaining a luxurious design by eliminating the need for external fixing units and enhancing protection for the display unit.
Implementation Method 1
a magnet member disposed therein; a magnetic body mounted within the electronic device positioned to be magnetized by the magnet member when in proximity thereof
Implementation Method 2
a magnetic body mounted within the electronic device positioned to be magnetized by the magnet member
Implementation Method 3
a sensor unit located near the magnetic body to sense a magnetic flux generated by the magnetic body
Data Source
AI summary
An electronic device having a cover includes a cover unit rotated about one side of the electronic device and having a magnet member; a magnetic body mounted within the electronic device and magnetized by the magnet member; a sensor unit provided close to the magnetic body to sense a magnetic flux generated by the magnetic body; and a controller which executes a user experience according to a signal output of the sensor unit.