Rotatable Magnetic Element for Tablet Cover Alignment
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Solution Overview
Problem
Existing protective covers for tablet PCs are difficult to detach and tend to loosen over time, making them inconvenient for use with portable electronic devices.
Innovation Solution
A portable electronic device design featuring a body with a first engaging surface and groove, a stationary magnetic element, and a base with a connecting element and rotatable magnetic element, allowing for secure and easy attachment and detachment through magnetic attraction and repulsion forces, enabling the rotatable magnetic element to rotate between grooves for stable connection without precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a protective cover is equipped with a physical keyboard to cooperate with tablet PCs, then information input capability is improved, but the connection between the protective cover and tablet PC becomes difficult to detach and easily loosens after repeated detachment
Solution Approach 1:
The patent replaces traditional mechanical connection systems (snap fits, latches, screws) with a magnetic field-based attachment mechanism. Magnetic elements are embedded in the protective cover and corresponding magnetic elements in the tablet PC create automatic magnetic attraction forces that secure the connection, enabling easy attachment through proximity and reliable detachment through controlled magnetic force modulation.
Solution Approach 2:
The patent utilizes changes in magnetic field strength and polarity to control the attachment state. By varying the magnetic field parameters (strength, direction, distribution), the system achieves different connection states: strong magnetic attraction for secure attachment during use, and controlled magnetic field modulation for easy detachment without precise alignment requirements.
2Reliability
If traditional mechanical connection mechanisms are used, then connection stability can be maintained, but precise alignment is required and repeated detachment causes loosening
Solution Approach 1:
The magnetic connection system provides dynamic adaptability to misalignment. The magnetic field naturally pulls components together from various angles and positions, automatically correcting alignment during attachment. The magnetic force continuously adjusts to maintain optimal connection even during use, and can be modulated to facilitate detachment without requiring precise alignment procedures.
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 provides a stable and easy-to-use connection mechanism that ensures the protective cover remains securely attached to the tablet PC, reducing looseness and improving user experience by allowing for effortless detachment and reattachment without precise alignment requirements.
Implementation Method 1
the rotatable magnetic element is attracted by the stationary magnetic element to rotate out of the second groove and get into the first groove
Data Source
AI summary
A portable electronic device comprises a body, a stationary magnetic element and a base. The stationary magnetic element is disposed at a periphery of the first groove. The connecting element of the base is disposed on the bottom plate of the base and including a second engaging surface and a second groove. An opening of the second groove is formed on the second engaging surface. The rotatable magnetic element is pivotally connected with the second groove. One end of the rotatable magnetic element can rotate in/out the second groove. When a distance between the first engaging surface and the second engaging surface is less than a predetermined value and the opening of the first groove faces to the opening of the second groove, the rotatable magnetic element is attracted by the stationary magnetic element to rotate out of the second groove and get into the first groove.