Segmented Magnetic Assembly for Adjustable Attachment Force
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Solution Overview
Problem
Existing magnet assemblies in consumer and industrial products face challenges in adjusting magnetic force without increasing complexity, often requiring additional coils for control.
Innovation Solution
A magnetic assembly comprising an annular main magnetic element with multiple segments of varying polar directions and angles, paired with an annular auxiliary magnetic element, allowing for adjustable magnetic force by altering their relative angular position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional coils are added to generate additional magnetic fields for controlling magnetic force, then magnetic force control is achieved, but device complexity increases
Solution Approach 1:
The magnetic elements are divided into multiple segments with different polar directions. The main magnetic element has first, second, and third magnetic segments with polar directions oriented at different angles. Similarly, the auxiliary magnetic element has corresponding segments. By rotating the auxiliary magnetic element, different segments align with segments from the main magnetic element, creating variable magnetic forces without additional coils.
Solution Approach 2:
The auxiliary magnetic element is designed to be rotatable relative to the main magnetic element. This dynamic configuration allows the magnetic force to be adjusted by changing the angular position, enabling magnetic force control through mechanical rotation rather than electrical coils.
2Strength
If traditional single-pole magnets are used for attaching parts, then magnetic attachment is achieved, but demagnetization becomes difficult
Solution Approach 1:
Both magnetic elements are segmented into multiple sections with alternating polar directions. This segmentation allows the magnetic force to be modulated by rotation, enabling controlled demagnetization when segments are misaligned, thus solving the demagnetization difficulty while maintaining strong attachment when aligned.
3Strength
If magnetic force is increased for secure attachment, then attachment strength is improved, but ease of disassembly deteriorates
Solution Approach 1:
The rotatable auxiliary magnetic element provides dynamic control over magnetic force. When aligned, segments create strong magnetic attraction for secure attachment. When rotated to misalign segments, the magnetic force decreases, enabling easy disassembly. This dynamic adjustment resolves the contradiction between strong attachment and easy disassembly.
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 controlled adjustment of magnetic force and shear force without additional coils, facilitating product miniaturization and ease of assembly/disassembly.
Implementation Method 1
the main magnetic element and the axillary magnetic element generate a first magnetic force, whereby the second module is magnetically adhered to the first module
Data Source
AI summary
A magnetic assembly is provided, including an annular main magnetic element and an annular axillary magnetic element. The main magnetic element has a plurality of main magnetic segments of different polar directions and lengths. The axillary magnetic element has a plurality of axillary magnetic segments of different polar directions and lengths, corresponding to the main magnetic segments.