Coded Magnetic Structures for Shear Force Attachment
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Solution Overview
Problem
Existing magnetic systems for moving objects using permanent magnets are impractical due to the need for large, heavy, and costly magnets to achieve sufficient shear forces, especially in applications like blenders where the direction of movement is perpendicular to the magnetization, and require electromagnetic fields to maintain attachment.
Innovation Solution
A system and method utilizing coded magnetic structures that achieve complementary alignment to produce peak tensile and shear forces, allowing magnetic attachment and movement of objects without the need for electromagnetic fields, using a code modulo system to ensure attachment until a torque threshold is exceeded, enabling easy detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If large permanent magnets are used to achieve sufficient shear forces for magnetic attachment, then the attachment strength is improved, but the size, weight, and cost of the system increase significantly
Solution Approach 1:
The patent replaces traditional mechanical magnetic attachment systems with a correlative magnetic field system. Instead of relying on large permanent magnets to generate shear forces through mechanical contact, the invention uses correlated magnetic fields that can attach objects without physical contact. The magnetic fields are correlated in space and time to provide attachment forces while allowing relative motion, eliminating the need for large, heavy permanent magnets that would otherwise be required to generate sufficient shear force.
Solution Approach 2:
The patent introduces dynamic control of magnetic field correlation to enable both attachment and motion. The magnetic fields are continuously adjusted in correlation to maintain attachment during movement. This dynamic approach allows the system to provide strong attachment forces when needed while enabling free motion when the correlation is relaxed, avoiding the static, heavy magnet structures that would be required for constant shear force maintenance.
2Reliability
If large permanent magnets are used to maintain magnetic attachment during movement, then the attachment reliability is improved, but the device complexity and safety risks increase
Solution Approach 1:
The patent replaces complex mechanical magnetic attachment systems with a controlled magnetic field correlation system. Instead of using large permanent magnets that require complex mounting and safety considerations, the invention uses electronically controlled magnetic fields that can be precisely regulated. This substitution reduces mechanical complexity while maintaining or improving attachment reliability through active field correlation control.
Solution Approach 2:
The patent implements feedback control through the correlation of magnetic fields in space and time. The system continuously monitors and adjusts the magnetic field parameters to maintain optimal correlation for attachment. This feedback mechanism ensures reliable attachment during movement while allowing for easy detachment when correlation is reduced, simplifying the overall system design compared to passive large magnet systems.
3Ease of operation
If electromagnetic fields are applied to permanent magnets to enable movement perpendicular to magnetization, then the directional control is improved, but the energy consumption and system complexity increase
Solution Approach 1:
The patent replaces the need for electromagnetic field application to permanent magnets with a direct correlated magnetic field system. Instead of using electromagnets to manipulate permanent magnet orientation for directional control, the invention uses two correlated magnetic fields that can be independently controlled in space and time. This allows directional control of movement without the energy consumption and complexity of electromagnetic actuation of permanent magnets.
Solution Approach 2:
The patent uses dynamic correlation of magnetic fields to achieve directional control without continuous energy input. The magnetic fields are correlated in a manner that naturally guides movement in desired directions through spatial and temporal field variations. This dynamic field correlation provides ease of operation for directional control while consuming less energy than continuous electromagnetic actuation of permanent magnets.
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 safe magnetic attachment and detachment of objects, such as blender blades, without the need for large magnets, reducing size, weight, and cost, while maintaining precise control over movement and alignment.
Implementation Method 1
achieving complementary alignment and peak correlation of said first magnetic structure with said second magnetic structure to produce a peak tensile force enabling magnetic attachment of said first object to said second object, said first magnetic structure and said second magnetic structure also producing a shear force
Data Source
AI summary
An improved system and method for moving an object includes a first correlated magnetic structure associated with a first object and a second correlated magnetic structure associated with a second object. The first and second correlated magnetic structures are complementary coded to achieve a peak attractive tensile force and a peak shear force when their code modulos are aligned thereby enabling magnetic attachment of the two objects whereby movement of one object causes movement of the other object as if the two objects were one object. Applying an amount of torque to one correlated magnetic structures greater than a torque threshold causes misalignment and decorrelation of the code modulos enabling detachment of the two objects. The number, location, and coding of the correlated magnetic structures can be selected to achieve specific torque characteristics, tensile force characteristics, and shear force characteristics.