Tablet Computer Magnetic Kickstand for Keyboard Base Stability
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Solution Overview
Problem
Tablet computers with physical keyboards are prone to tipping over due to shifted center of gravity when assembled with a base, requiring additional support structures.
Innovation Solution
An electronic device with a detachable base and magnetic members that repel each other, causing a supporting member to move out of the device's body, providing inherent stability without additional support structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tablet computer is assembled to the base with a physical keyboard, then text input capability is improved, but the center of gravity shifts causing the assembled structure to tip over
Solution Approach 1:
The patent introduces a supporting member that extends from the body to provide counterbalancing support. When the base is assembled, the supporting member automatically extends to position the center of gravity within the support polygon, preventing the structure from tipping over while maintaining the improved text input capability.
Solution Approach 2:
The supporting member is designed to be movable rather than fixed. It automatically extends when the base is assembled and can retract when the base is removed, allowing the device to adapt its support structure dynamically based on whether the base is attached, thus resolving the stability issue only when needed.
2Stability of the object's composition
If a supporting structure is added to prevent tipping, then stability is improved, but device complexity increases
Solution Approach 1:
The supporting member is designed to automatically extend and retract based on the presence of the base, without requiring user intervention or complex control systems. The magnetic interaction between the base and body automatically triggers the supporting member's movement, making the system self-regulating and avoiding additional complexity.
Solution Approach 2:
The patent replaces complex mechanical linkage systems with a magnetic field-based actuation mechanism. The magnetic interaction between the base and body provides the force needed to extend and retract the supporting member, eliminating the need for motors, sensors, or complex mechanical switches.
3Stability of the object's composition
If the supporting member is always extended, then stability is improved, but ease of operation deteriorates due to interference with base assembly
Solution Approach 1:
The supporting member transitions from a static always-extended design to a dynamic system that automatically adjusts its state. It retracts when the base is approaching or assembled, and extends when the base is removed, optimizing both ease of operation and stability at different operational states.
Solution Approach 2:
The system uses magnetic field interaction as a feedback mechanism to detect the presence or absence of the base. This feedback automatically controls the supporting member's extension state, ensuring it retracts when the base is attached (facilitating easy assembly) and extends when the base is removed (providing stability).
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 magnetic repulsion mechanism allows the electronic device to stand stably on a plane without additional support, preventing tipping and maintaining convenience in assembly and disassembly.
Implementation Method 1
Magnetisms of an end of the second magnetic member and an end of the first magnetic member are the same. When the base is assembled to the body, the second magnetic member repulses the first magnetic member, and the supporting member is driven to move out of the body.
Data Source
AI summary
An electronic device adapted to a base with a second magnetic member is provided. The base is detachably connected to the electronic device. The electronic device includes a body, a supporting member movably disposed at the body and a first magnetic member disposed at the supporting member. Magnetisms of an end of the second magnetic member and an end of the first magnetic member are the same. When the base is assembled to the body, the second magnetic member repulses the first magnetic member, and the supporting member is driven to move out of the body. An electronic system is also provided.