Platen Magnetic Stabilization to Prevent Impact Bouncing
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Solution Overview
Problem
Conventional self-checkout terminals face issues with platen instability due to impact forces, leading to undesirable bouncing and potential safety hazards, while maintaining a sleek design and stable construction.
Innovation Solution
A platen stabilization system using permanent magnets for secure coupling and electromagnets to enhance holding strength in response to impact forces, ensuring a smooth working surface and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional stabilization mechanisms (screws, nuts, springs) are used to secure the platen, then platen stability is improved, but the design becomes less sleek and the surface becomes obstructed
Solution Approach 1:
The patent replaces conventional mechanical stabilization mechanisms (screws, nuts, springs) with a magnetic field-based stabilization system. Electromagnets mounted on the platen underside generate magnetic fields that interact with ferromagnetic material in the base assembly, providing stabilization forces without mechanical contact points on the platen surface, thus maintaining a sleek design.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the platen and base assembly. The electromagnetic attraction force acts through the air gap between the platen underside and base top surface, eliminating the need for direct mechanical connections that would obstruct the platen surface.
2Stability of the object's composition
If conventional stabilization mechanisms are used to prevent platen bouncing, then stability is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical stabilization mechanisms with a simpler electromagnetic system. The electromagnets can be controlled electronically through feedback from impact force sensors, reducing mechanical complexity while maintaining or improving stabilization effectiveness.
Solution Approach 2:
The patent employs dynamic control of the electromagnetic stabilization system. Impact force sensors detect bouncing conditions and trigger the electromagnets to activate only when needed, rather than requiring constant mechanical engagement. This dynamic response reduces overall system complexity compared to continuously engaged mechanical mechanisms.
3Stability of the object's composition
If the platen is secured with mechanical fasteners, then stability is improved, but the working surface becomes obstructed
Solution Approach 1:
The patent substitutes mechanical fasteners with an electromagnetic field-based securing mechanism. The electromagnets are mounted on the platen underside and engage with ferromagnetic material in the base, allowing the platen surface to remain completely clear and maximizing the working surface area.
Solution Approach 2:
The patent moves the stabilization mechanism from the platen surface (2D plane) to the platen underside (3D space). By relocating the electromagnetic actuators to the reverse side of the platen, the working surface remains unobstructed while stabilization functionality is maintained through the magnetic interaction with the base assembly.
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 system effectively prevents platen bouncing by increasing magnetic attraction during impact, providing enhanced safety and maintaining a sleek, obstruction-free surface.
Implementation Method 1
One or more magnets (e.g., permanent magnets) can be mounted to an underside of the platen. The magnets of the platen can magnetically couple with respective base magnets (e.g., base permanent magnets) of the base assembly, which effectively secures the platen in place.
Implementation Method 2
In the event an impact force is detected on the platen, the electromagnet can be activated (e.g., by directing electric current through a coil of the electromagnet) to increase a holding strength of the platen to the base assembly, which can effectively prevent or reduce the platen from 'bouncing up' in response to the impact force.
Data Source
AI summary
A system includes a platen assembly having a platen and a magnet coupled with an underside of the platen. The system also includes a base assembly having a storage component and a base magnet coupled with the storage component. The base magnet and the magnet of the platen are magnetically coupled to secure the platen in place relative to the base assembly. The system also includes an electromagnet that is selectively activated to increase a holding strength of the platen to the base assembly. Techniques for selectively activating an electromagnet to increase a holding strength of a platen to a base assembly are also provided.