Magnetic Mount Assembly Using Ferromagnetic Extensions
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Solution Overview
Problem
Existing magnet mounting assemblies for devices on ferrous structures face challenges in securely attaching and repositioning due to the brittleness of permanent magnets and the need for adhesives, which can degrade over time.
Innovation Solution
A magnetic mounting assembly using ferromagnetic extensions to indirectly attach a bar magnet to a frame, eliminating the need for direct fastening or adhesives, and utilizing angled connection surfaces to stabilize the magnet's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If permanent magnets are directly attached to the frame using adhesives or fasteners, then the magnetic mounting assembly can be securely attached to ferrous structures, but the brittleness of permanent magnets causes structural stress and potential damage
Solution Approach 1:
Ferromagnetic extensions serve as intermediary components between the bar magnet and the frame. These extensions are attached to the frame and magnetically coupled to the bar magnet, distributing mechanical stresses away from the brittle magnet material and preventing direct stress concentration that would occur with adhesives or fasteners.
Solution Approach 2:
The mounting assembly is segmented into distinct functional components: the frame, ferromagnetic extensions, and bar magnet. This segmentation allows each component to perform its specific function optimally - the frame provides structural support, the extensions provide magnetic coupling and stress distribution, and the magnet provides the mounting force - while reducing stress on the magnet itself.
2Strength
If adhesives are used to attach the magnet to the frame, then secure mounting is achieved, but the adhesives can degrade over time reducing reliability
Solution Approach 1:
The ferromagnetic extensions act as mediators that eliminate the need for degradable adhesive materials. By using magnetic coupling between the extensions and the bar magnet, the system achieves secure attachment without relying on chemical bonds that degrade over time, thereby improving long-term reliability.
Solution Approach 2:
The patent replaces the chemical bonding mechanism (adhesives) with a magnetic field-based coupling mechanism. This substitution eliminates the degradation issues associated with adhesive aging while maintaining secure attachment strength through the magnetic interaction between the ferromagnetic extensions and the bar magnet.
3Ease of manufacture
If fasteners are used to directly secure the magnet to the frame, then easy assembly is achieved, but the brittleness of permanent magnets makes them susceptible to damage during assembly
Solution Approach 1:
The ferromagnetic extensions serve as protective intermediaries during assembly. Fasteners can be used to attach the extensions to the frame without directly contacting the brittle bar magnet, thereby maintaining ease of assembly while preventing mechanical damage to the magnet during the assembly process.
Solution Approach 2:
By segmenting the attachment system into frame, ferromagnetic extensions, and bar magnet, the patent allows fasteners to interact only with the more durable extension components rather than the brittle magnet material, enabling easy assembly without risking magnet damage.
4Device complexity
If the magnet is directly mounted to the frame, then the assembly structure is simple, but repositioning and removal are difficult
Solution Approach 1:
The ferromagnetic extensions act as removable intermediaries between the frame and the bar magnet. This allows the bar magnet to be easily detached from the extensions for repositioning or removal, while the extensions remain attached to the frame, maintaining a simple overall structure while improving operational flexibility.
Solution Approach 2:
The magnetic coupling between the ferromagnetic extensions and the bar magnet provides a dynamic, reversible attachment mechanism. Unlike permanent adhesive bonds, the magnetic connection can be easily broken and reformed, enabling simple repositioning and removal operations while maintaining structural simplicity.
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
Enhances the durability and ease of attachment by reducing structural stress on the magnet and simplifying the assembly process, while maintaining secure magnetic mounting.
Implementation Method 1
A bar magnet has a first lateral end defining a first magnetic pole magnetically coupled to the first ferromagnetic extension. The bar magnet has a second lateral end defining an opposite magnetic pole magnetically coupled to the second ferromagnetic extension.
Data Source
AI summary
The technology disclosed herein relates to a magnetic mounting assembly having a frame. A first ferromagnetic extension is fixed to the frame and extends in an axial direction. A second ferromagnetic extension is fixed to the frame and extends in the axial direction. A bar magnet has a first lateral end defining a first magnetic pole magnetically coupled to the first ferromagnetic extension. The bar magnet has a second lateral end defining an opposite magnetic pole magnetically coupled to the second ferromagnetic extension. The first ferromagnetic extension and the second ferromagnetic extension are configured to fix the bar magnet relative to the frame.