Magnetization Layout for Inclined Magnetic Orientation in Halbach Arrays

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Solution Overview

Problem

Magnetizing magnetic materials to produce a magnetic orientation inclined from a predetermined direction is challenging in existing technologies.

Innovation Solution

A method and apparatus that involve arranging magnetic material pieces with inclined magnetic orientations, using multiple magnetization parts with specific spatial arrangements and magnetic paths to achieve magnetization in desired directions, forming a Halbach array magnet.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional magnetization methods are used, then magnetization in standard directions can be achieved, but magnetization in inclined directions cannot be achieved

Engineering Contradiction:

Improvemagnetic orientation directionVSAvoidmagnetic orientation precision

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The magnetization process is divided into multiple independent magnetization parts (first, second, third, fourth) that can be independently controlled. Each magnetization part targets specific magnetic material pieces to achieve different magnetic orientations, enabling both inclined and standard direction magnetization through segmented control of magnetization fields.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the magnetic material pieces are subjected to different magnetization conditions. By positioning magnetization parts at specific locations and controlling their magnetic field directions locally, the patent achieves varied magnetic orientations (inclined or standard) in different local regions, which is essential for forming Halbach array magnets with specific magnetic distribution patterns.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If multiple magnetization parts are used to achieve inclined magnetic orientation, then magnetization versatility improves, but device complexity increases

Engineering Contradiction:

Improvemagnetic orientation controlVSAvoidmagnetization apparatus structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The magnetization parts are asymmetrically arranged relative to the magnetic material pieces. The first and second magnetization parts are positioned on one side while the third and fourth are on the other side, creating an asymmetric configuration that enables inclined magnetic orientation. This asymmetric layout allows versatile magnetic control without requiring fully symmetric complex structures.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The patent introduces spatial dimensionality by arranging magnetization parts not only in the direction perpendicular to magnetic material pieces but also in the direction parallel to them. This multi-dimensional arrangement of magnetization parts enables control over both inclined and standard magnetic orientations, achieving versatility through spatial configuration rather than increasing the number of components.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 effective magnetization of magnetic materials to produce magnetic orientations inclined from a predetermined direction, enhancing the formation of magnetic flux loops and improving magnetization efficiency.

Implementation Method 1

forming a magnetic path between the first and second magnetization parts through the magnetic material piece that can produce the magnetic orientation in the direction inclined from the second direction

Methodology Applied

Scientific EffectMagnetic path formation: Magnetism

Implementation Method 2

forming a magnetic path through, among the plurality of magnetic material pieces, a magnetic material piece that can produce a magnetic orientation in the second direction and thereby magnetizing the magnetic material piece

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS20250014798A1Magnetization method and magnetization apparatus

Publication Date: 2025.01.09 TOYOTA JIDOSHA KK

AI summary

A magnetization method capable of magnetizing a magnetic material in such a manner that the magnetic material produces a magnetic orientation in a direction inclined from a predetermined direction is provided. A magnetization method includes: a step of arranging a plurality of magnetic material pieces so that they includes a magnetic material piece that can produce a magnetic orientation in a direction inclined from a predetermined direction; a first magnetization step of magnetizing a magnetic material piece disposed between the first and second magnetization parts that form a magnetic path through the magnetic material piece that can produce the magnetic orientation in the direction inclined from the second direction; and a second magnetization step of magnetizing the magnetic material piece that can produce the magnetic orientation in the predetermined direction.