Magnetic Core Power Generator With Full-Length Magnetization Reversal
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Solution Overview
Problem
Conventional vibration power generation technologies only allow magnetic flux to flow into one end of the magnetic member, limiting magnetization reversal and resulting in low power generation efficiency.
Innovation Solution
A power generation module with a magnetic core and induction yokes at both ends, along with a magnet part that can displace relative to the module, ensuring magnetization reversal occurs over a wider area, enhancing power generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single magnet is used to generate magnetic flux in one end of the magnetic member, then the structure is simple, but the power generation amount is small
Solution Approach 1:
The magnetic member is divided into multiple segments along its longitudinal direction, with each segment capable of independent magnetization reversal. This segmentation allows the magnetic flux to act on multiple regions simultaneously, increasing the total power generation amount while maintaining structural simplicity through modular design
Solution Approach 2:
Multiple magnets are arranged at different positions to face different ends of the magnetic member, merging their magnetic flux effects to simultaneously induce magnetization reversal across multiple segments. This combining approach increases power generation without significantly complicating the overall structure
2Device complexity
If magnetic flux flows into only one end of the magnetic member, then the configuration is simple, but magnetization reversal cannot occur through the entire magnetic material
Solution Approach 1:
The magnetic flux distribution is extended from a single-point contact at one end to multi-point contacts at both ends of the magnetic member. This dimensional extension in the longitudinal direction enables magnetization reversal to occur throughout the entire length of the magnetic member, significantly increasing the effective area without complex configuration
3Device complexity
If the magnet reciprocates perpendicular to the longitudinal direction of the magnetic member, then the mechanism is simple, but the power generation efficiency is low
Solution Approach 1:
Multiple magnets are pre-positioned at different locations to face different ends of the magnetic member before reciprocation begins. This preliminary arrangement ensures that during each reciprocating cycle, magnetic flux can simultaneously act on multiple segments of the magnetic member, dramatically improving power generation efficiency while keeping the reciprocating mechanism simple
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 solution enables larger and more efficient power generation by allowing magnetization reversal to occur over the entire magnetic core, increasing the amount of power produced.
Implementation Method 1
magnetization reversal occurs in the magnetic core when the magnet part is located in the first position and in the second position relative to the power generation element. Since the magnetization reversal occurs over a wide area in the magnetic core, a larger amount of power can be obtained
Implementation Method 2
a coil wound around the magnetic core... generates a pulse voltage in the coil
Data Source
AI summary
A power generation module includes a power generation element having a magnetic core elongated in one direction and a coil wound around the magnetic core, an induction yoke part having a first induction yoke contacting one end of the magnetic core in a longitudinal direction of the magnetic core and made of a magnetic material and a second induction yoke contacting the other end of the magnetic core in the longitudinal direction and made of a magnetic material, and a magnet part that is relatively displaceable relative to the power generation element in a direction perpendicular to the longitudinal direction. The magnet part has a first magnet and a second magnet arranged in the displacement direction. The first magnet has an N-pole part and an S-pole part arranged in the longitudinal direction. The second magnet has an N-pole part and an S-pole part arranged in the longitudinal direction. The N-pole part of the first magnet and the S-pole part of the second magnet face each other in the displacement direction, while the S-pole part of the first magnet and the N-pole part of the second magnet face each other in the displacement direction. When the magnet part is located in a first position relative to the power generation element, the N-pole part of the first magnet faces the first induction yoke, while the S-pole part of the first magnet faces the second induction yoke. When the magnet part is located in a second position relative to the power generation element, the S-pole part of the second magnet faces the first induction yoke, while the N-pole part of the second magnet faces the second induction yoke.