Foam-Supported Magnet Element for Large-Stroke Power Generation
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Solution Overview
Problem
Conventional magnet elements in electrical devices, such as generators and sensors, face challenges in efficiently generating power due to limited magnetic flux density variation and durability issues with traditional support materials.
Innovation Solution
A magnet element featuring a magnet part supported by an elastic resin foam support with constricted portions, allowing for large axial deformation without significant radial size change, enhancing power generation efficiency and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional metal member is used to support the magnet part, then the structure has high strength, but the power generation efficiency is limited due to restricted magnetic flux density variation
Solution Approach 1:
The support material is changed from conventional metal to elastic resin, fundamentally altering the mechanical properties. This parameter change allows the support to undergo large elastic deformations, enabling significant variation in magnetic flux density and thereby improving power generation efficiency while maintaining sufficient strength through the elastic properties of the resin
Solution Approach 2:
The invention uses elastic resin as a composite or alternative material to traditional metal supports. This material substitution provides both the necessary mechanical strength and the elastic deformability required to enhance magnetic flux variation, resolving the contradiction between strength and power generation efficiency
2Productivity
If the support undergoes large deformation to increase power generation, then the magnetic flux density variation increases, but the radial size change causes interference with surrounding components
Solution Approach 1:
The elastic resin support is designed with non-uniform thickness, creating local quality variations. The thickness is greater in the axial direction to enable large deformations for power generation, while being thinner in the radial direction to minimize size interference with surrounding components. This local quality differentiation resolves the contradiction between deformation capability and radial size constraints
3Reliability
If traditional rigid support materials are used, then the structure is simple, but the durability is reduced due to stress concentration and limited elasticity
Solution Approach 1:
Changing the support material from rigid metal to elastic resin fundamentally alters the stress distribution characteristics. The elastic properties of the resin allow the support to undergo large deformations without stress concentration, significantly improving durability and fatigue resistance while maintaining a relatively simple single-piece structure
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 elastic resin foam support enables increased power generation per stroke with reduced size interference and improved durability, allowing for efficient power generation and reduced bounce in applications like vehicle suspensions.
Implementation Method 1
a support made of an elastic resin and configured to support the magnet part. The support is a foam.
Data Source
AI summary
A magnet element includes a magnet part and a support made of an clastic resin and configured to support the magnet part, wherein the support is a foam.