Magnetic Module with Activatable Anchoring via Flux Inversion
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Solution Overview
Problem
Existing magnetic modules for anchoring ferromagnetic workpieces are either permanently magnetized, making disassembly difficult, or structurally complex and unsuitable for applications requiring joint or selective magnetic activation in closed assemblies.
Innovation Solution
A magnetic module with two anchoring faces that can be magnetically activated and deactivated from outside, featuring a movable magnetic unit between fixed magnetic cores, allowing for easy assembly and disassembly by rotating the unit between operative positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If magnetic modules are permanently magnetized to provide high anchoring forces, then anchoring magnetic force is improved, but ease of disassembly deteriorates
Solution Approach 1:
The patent applies dynamics by making the magnetic module's magnetic state changeable rather than fixed. The movable magnetic unit can be rotated between operative and inoperative positions, dynamically switching the magnetic circuit configuration. This allows the anchoring force to be high during operation but easily deactivated for disassembly, resolving the contradiction between maintaining strong anchoring and enabling easy disassembly.
2Adaptability or versatility
If magnetic modules use independent multipolar stator and rotor configurations for magnetic activation, then magnetic activation capability is improved, but device complexity increases
Solution Approach 1:
The patent merges the stator and rotor magnetic elements into a unified structure where the movable magnetic unit integrates both functions. Instead of separate independent multipolar stators and rotors, the invention combines them into a single assembly where the movable unit contains magnets that interact with the fixed magnetic cores, simplifying the overall structure while maintaining magnetic activation capability.
Solution Approach 2:
The movable magnetic unit serves multiple functions: it acts as both a rotor for magnetic activation and a structural connector between the two fixed magnetic cores. This multi-functional design reduces the number of separate components needed, thereby reducing device complexity while preserving the ability to magnetically activate and deactivate the anchoring force.
3Adaptability or versatility
If magnetic modules are designed for closed assemblies with external actuation, then adaptability to different assemblies is improved, but ease of manual operation deteriorates
Solution Approach 1:
The movable magnetic unit acts as an intermediary element that can be actuated from outside the closed assembly. By providing a protruding portion or access mechanism on the movable unit, external actuators or tools can rotate it between operative and inoperative positions without requiring disassembly of the closed structure, thus maintaining adaptability while enabling external operation.
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 efficient and cost-effective assembly and disassembly of magnetic modules in closed spaces with high anchoring magnetic forces, suitable for various applications and assembly types, while maintaining a simple structure and adjustable magnetic force.
Implementation Method 1
two opposite anchoring faces capable of being magnetically activated and deactivated by means of an inversion of the magnetic flux inside the anchoring module
Implementation Method 2
a plurality of induced magnetic poles alternatively of opposite polarities, by a movable magnetic unit configured with a same plurality of permanent magnetic poles
Implementation Method 3
a plurality of polarization permanent magnets disposed between contiguous polar elements
Implementation Method 4
anchoring ferromagnetic workpieces of an assembly
Data Source
AI summary
A magnetic module with two front anchoring surfaces magnetically activatable and deactivatable by inversion of the magnetic flux; the module comprises a first and a second fixed magnetic core, each one configured with a plurality of polar elements defining a respective front anchoring surface, and a rear surface, as well as provided with a first plurality of permanent magnets arranged between contiguous polar elements, wherein homonymous poles (N, S) of the permanent magnets are in contact with lateral faces of the single polar elements, to generate alternatively induced poles of opposite polarity in each fixed magnetic core. A movable magnetic unit for an inversion of the magnetic flux is disposed between the two fixed magnetic cores, and it is configured with a second plurality of permanent magnets having poles (N, S) alternatively of opposite polarities facing the rear surface of the two fixed magnetic cores; the movable magnetic unit can be moved between a first and a second operative position for the inversion of the magnetic flux, to magnetically activate and respectively deactivate one or both the front surfaces of the anchoring module.