Linear Halbach array permanent magnet rail

A linear and array technology, applied in the field of rail transit, can solve problems such as large suspension force, suboptimal geometric size, and failure of the suspension system to achieve the effect of enhancing the suspension force

Pending Publication Date: 2021-10-08
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the previous design of the Halbach permanent magnet track, conventional thinking was used to design the size of the track structure as a symmetrical type, and the size was not optimized from the contribution of the magnetic properties of each permanent magnet to the suspension system, that is, the existing Halbach permanent magnet The geometry of the track is not optimal, preventing the levitation system from generating maximum levitation force

Method used

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  • Linear Halbach array permanent magnet rail
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  • Linear Halbach array permanent magnet rail

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 and image 3 As shown, the present embodiment provides a linear Halbach array permanent magnet track, comprising: a stainless steel base 1, a first permanent magnet 2, a second permanent magnet 3 and a third permanent magnet 4, and the first permanent magnet 2 is at least There are two pieces, each of the first permanent magnets 2 is arranged above the stainless steel base 1, and the magnetization direction of each of the first permanent magnets 2 is the same, and they are all horizontal directions; the second permanent magnets 3 are at least There are two pieces, the second permanent magnets 3 are arranged between two adjacent first permanent magnets 2, the magnetization direction of each second permanent magnet 3 is set to a vertical direction, and the adjacent The magnetization directions of the two second permanent magnets 3 are opposite; the third permanent magnet 4 is arranged between two adjacent second permanent magnets 3, and the magnetization...

Embodiment 2

[0028] Such as figure 1 and image 3 As shown, the present embodiment provides a linear Halbach array permanent magnet track, comprising: a stainless steel base 1, a first permanent magnet 2, a second permanent magnet 3 and a third permanent magnet 4, and the first permanent magnet 2 is at least There are two pieces, each of the first permanent magnets 2 is arranged above the stainless steel base 1, and the magnetization direction of each of the first permanent magnets 2 is the same, and they are all horizontal directions; the second permanent magnets 3 are at least There are two pieces, the second permanent magnets 3 are arranged between two adjacent first permanent magnets 2, the magnetization direction of each second permanent magnet 3 is set to a vertical direction, and the adjacent The magnetization directions of the two second permanent magnets 3 are opposite; the third permanent magnet 4 is arranged between two adjacent second permanent magnets 3, and the magnetization...

Embodiment 3

[0032] Such as figure 1 and image 3 As shown, the present embodiment provides a linear Halbach array permanent magnet track, comprising: a stainless steel base 1, a first permanent magnet 2, a second permanent magnet 3 and a third permanent magnet 4, and the first permanent magnet 2 is at least There are two pieces, each of the first permanent magnets 2 is arranged above the stainless steel base 1, and the magnetization direction of each of the first permanent magnets 2 is the same, and they are all horizontal directions; the second permanent magnets 3 are at least There are two pieces, the second permanent magnets 3 are arranged between two adjacent first permanent magnets 2, the magnetization direction of each second permanent magnet 3 is set to a vertical direction, and the adjacent The magnetization directions of the two second permanent magnets 3 are opposite; the third permanent magnet 4 is arranged between two adjacent second permanent magnets 3, and the magnetization...

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Abstract

The invention relates to the technical field of rail transit, in particular to a linear Halbach array permanent magnet rail. The rail comprises a stainless steel base, first permanent magnets, second permanent magnets and third permanent magnets, the first permanent magnets are all arranged above the stainless steel base, and the magnetization directions of all the first permanent magnets are the same and are all the horizontal direction; each second permanent magnets are arranged between every two adjacent first permanent magnets, the magnetization direction of each second permanent magnet is vertical, and the magnetization directions of every two adjacent second permanent magnets are opposite; the third permanent magnets are arranged between every two adjacent second permanent magnets, and the magnetization direction of the third permanent magnets is the horizontal direction. The single permanent magnet of the permanent magnet rail is set to be in the specific height and width, the suspension force of the permanent magnet rail is enhanced, the cross sectional area of the permanent magnets is changed, and the suspension force of the permanent magnet rail is increased; and the permanent magnet arrangement mode most suitable for the permanent magnet rail can be changed.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a linear Halbach array permanent magnet track. Background technique [0002] The permanent magnet track is usually assembled by NdFeB permanent magnets and polymagnet yokes according to the optimized magnetic circuit structure, and is the only external magnetic field input source for high-temperature superconducting pinned maglevs. In the previous design of the Halbach permanent magnet track, conventional thinking was used to design the size of the track structure as a symmetrical type, and the size was not optimized from the contribution of the magnetic properties of each permanent magnet to the suspension system, that is, the existing Halbach permanent magnet The geometry of the track is not optimal, preventing the levitation system from producing maximum levitation force. Contents of the invention [0003] The object of the present invention is to provide a linear Halb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B25/30
CPCE01B25/30
Inventor 邓自刚温鹏彭璨郑珺
Owner SOUTHWEST JIAOTONG UNIV
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