Magnetic Attachment Mechanism for Electrical Components on Paper
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Solution Overview
Problem
Existing methods for attaching electrical components to conductive traces on paper and other substrates are not efficient for creating flexible, lightweight, and disposable electronic circuits, as they require complex processes like sputter coating or inkjet printing, and do not easily accommodate non-flat or rough surfaces.
Innovation Solution
A magnetic attachment mechanism using electrical components with support pillars and moveable magnets, where the magnets are positioned within channels and assisted by springs to ensure reliable contact with conductive traces on substrates, allowing for secure attachment regardless of surface flatness or roughness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional methods like sputter coating or inkjet printing are used to attach electrical components to paper substrates, then electrical connection can be achieved, but the process becomes complex and time-consuming
Solution Approach 1:
The patent replaces traditional mechanical attachment methods (sputter coating, inkjet printing) with a magnetic attachment system. Magnets embedded in the electrical component directly attract to the paper substrate, eliminating complex deposition processes and enabling quick, tool-free attachment while maintaining electrical connectivity through the conductive trace.
Solution Approach 2:
The invention changes the attachment mechanism from chemical/thermal processes to magnetic force interaction. By incorporating magnets and utilizing the magnetic properties of the paper substrate, the system transforms the attachment parameter from requiring complex material deposition to simple magnetic attraction, significantly reducing process complexity and time.
2Adaptability or versatility
If rigid attachment methods are used, then stable electrical connection is achieved, but the system cannot accommodate non-flat or rough surfaces
Solution Approach 1:
The patent incorporates a spring mechanism that allows the electrical component to dynamically adapt to surface irregularities. The spring enables the component to flex and conform to non-flat or rough surfaces while maintaining consistent pressure for reliable electrical contact, transforming a static rigid system into a dynamic adaptive one.
Solution Approach 2:
The spring acts as a cushioning element that anticipates and compensates for surface irregularities before they compromise electrical contact. By pre-loading the spring, the system ensures that even on rough surfaces, sufficient contact pressure is maintained to guarantee reliable electrical connection.
3Reliability
If magnets are fixed in position, then structural stability is maintained, but reliable electrical contact on rough surfaces cannot be ensured
Solution Approach 1:
The magnet is positioned within a channel rather than being fixed rigidly, allowing it to move dynamically in response to surface irregularities. This movable positioning enables the magnet to self-adjust to maintain optimal contact with the substrate while the spring provides the restoring force, achieving reliable attachment without complex positioning mechanisms.
Solution Approach 2:
The movable magnet within the channel performs self-alignment and self-adjustment to surface conditions. The magnetic force itself drives the magnet into contact with the substrate, and the channel geometry guides proper positioning, eliminating the need for external positioning mechanisms or complex assembly 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
Enables quick and easy attachment of electrical components to paper and other substrates, facilitating the creation of simple or complex circuits, even on non-flat surfaces, with reliable electrical contact and stability, suitable for applications in engineering and education.
Implementation Method 1
a magnetic field between each of the magnets and the magnetic material brings a lower surface of each of the magnets in contact with the conductive trace
Implementation Method 2
the springs allow the support pillars to settle on the top surface independent of the flatness or roughness thereof
Data Source
AI summary
An electrical component for attachment to paper and other substrates comprises, according to one embodiment, a functional electronic part including one or more support pillars on an underside thereof. Each of the support pillars comprises: a channel extending therethrough from a top opening to a bottom opening, where the top opening of the channel is adjacent to the functional electronic part; and a magnet moveably positioned in the channel in electrical contact with the functional electronic part, where the bottom opening of the channel has a width smaller than a maximum lateral dimension of the magnet.