Magnetic Elastic Body for Induction via Deformation

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Solution Overview

Problem

Ferrite magnets used in electromagnetic induction devices are brittle and prone to breakage, limiting their effectiveness and durability.

Innovation Solution

An elastic body made of elastomeric foam containing magnetized magnetic powder is developed, which generates an induced current by undergoing elastic deformation, increasing magnetic flux density and preventing breakage due to its elastic properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If ferrite magnets are used in electromagnetic induction devices, then magnetic flux density is maintained, but the device becomes brittle and prone to breakage

Engineering Contradiction:

ImprovedurabilityVSAvoidbrittleness resistance

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent uses composite materials by combining elastomeric foam (providing elasticity and durability) with magnetized magnetic powder (providing magnetic flux density). This composite structure resolves the contradiction by integrating the advantages of both materials: the foam matrix prevents breakage while the dispersed magnetic powder maintains the necessary magnetic properties for electromagnetic induction.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent changes the physical state and properties of the magnetic material by dispersing magnetic powder throughout the elastomeric foam matrix. This parameter change transforms the material from a rigid, brittle ferrite magnet to a flexible, durable elastic body that can undergo repeated deformation without breaking, while still generating sufficient magnetic flux density for electromagnetic induction.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If ferrite magnets are used, then electromagnetic induction is achieved, but the device has limited effectiveness due to breakage

Engineering Contradiction:

ImproveeffectivenessVSAvoidbreakage susceptibility

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The composite of elastomeric foam and magnetic powder creates a material that is both durable and magnetically active, resolving the contradiction between effectiveness and breakage susceptibility. The foam provides mechanical resilience while the magnetic powder enables electromagnetic induction, eliminating the harmful effect of breakage.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent converts the inherent brittleness of ferrite magnets into a benefit by replacing it with an elastic material that can undergo deformation. The elastic deformation of the foam matrix actually enhances the electromagnetic induction effect by changing magnetic flux density dynamically, turning what would be a harmful mechanical property into a useful functional characteristic.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If elastic deformation is used to generate induced current, then durability is enhanced, but magnetic flux density must be maintained

Engineering Contradiction:

ImprovedurabilityVSAvoidmagnetic flux density

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent applies local quality by concentrating magnetic powder particles throughout the elastomeric foam matrix. This ensures that even though the material is elastic and deformable, the magnetic flux density is maintained at sufficient levels in the regions where electromagnetic induction occurs, resolving the contradiction between durability and magnetic flux quantity.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The composite material structure allows the elastomeric foam to provide elastic deformation for durability while the dispersed magnetic powder maintains the necessary magnetic flux density. The two components work synergistically, with the foam providing mechanical resilience and the magnetic powder providing the magnetic field necessary for induction.

Inventive Principle:

Principle #40Composite materials

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

The magnetic elastic body effectively generates an induced current through deformation, enhancing durability and compactness of the electromagnetic induction device while maintaining magnetic flux density, thus overcoming the brittleness of ferrite magnets.

Implementation Method 1

the elastic body being an elastomeric foam... undergoes elastic deformation to cause a change in magnetic flux density

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Implementation Method 2

generates an induced current in a circuit by undergoing elastic deformation to cause a change in magnetic flux density

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11488751B2Elastic body, bump stop, electromagnetic induction device, power generation system, detection device, and production method for elastic body

Publication Date: 2022.11.01 INOAC CORP

AI summary

An elastic body of this disclosure contains magnetized magnetic powder dispersed in an elastic member, and generates an induced current in a circuit by undergoing an elastic deformation to cause a change in magnetic flux density. The elastic member is an elastomeric foam.