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A permanent magnet array

A permanent magnet and array technology, applied in the direction of magnets, permanent magnets, magnetic objects, etc., can solve the problem of limited effect of magnetic field increase, increase the magnetic field strength above the track, etc. Wide range of effects

Active Publication Date: 2022-06-24
苏州英磁新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The permanent magnet guide rails used for the suspension of superconducting trains described in these patents are all specific rectangular magnetic steels, which are arranged along the specific magnetization directions in the horizontal and vertical directions to increase the magnetic field intensity above the rails. purpose, but because no effective magnetic field convergence has been formed, the effect of the actual magnetic field increase is still limited

Method used

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Embodiment 1

[0033] The magnetic steel block adopts a regular triangle structure, and a total of seven blocks are arranged in sequence to form an isosceles trapezoid structure with a base angle of 60 degrees. To generalize the magnetization direction of each magnetic steel in the magnetic steel array involved in this patent, the direction parallel to the upper edge of the array should be defined as the horizontal direction, and the vector direction facing the array section, perpendicular to the horizontal direction and pointing to the right is positive. direction, the magnetization angle θ is the angle that is changed from the horizontal direction in the counterclockwise positive direction, and the local coordinate system of the permanent magnet array is a right-handed system. In this embodiment, in the array structure composed of seven equilateral triangular magnet steels, the magnetization direction of the first magnet steel on the left is to rotate 30° counterclockwise to the right along...

Embodiment 2

[0040] A permanent magnet array of the present invention can be applied to a permanent magnet guide rail, and includes an array structure composed of several equilateral triangular magnetic steels 1 of the same size arranged in sequence. The magnetization directions of adjacent equilateral triangular magnetic steels are different, so that the magnetic field Convergence, the number of magnet steel blocks Z, satisfies Z=4*n+3, (n∈N * ). In this implementation case, considering the chamfer, such as Image 6 shown. In Example 2, the number of magnetic steel blocks satisfies the above formula, that is, the case of n=1.

[0041] Specifically, the sequential arrangement here means that the corresponding sides of the adjacent equilateral triangle magnets are closely attached to each other. see Figure 4 Among them, the preferred value of this embodiment is 0.5mm*60°-1mm*60°, the chamfer can control the spatial distribution of the magnetic field, and further, limited by the difficu...

Embodiment 3

[0044] In this embodiment, the number Z of magnetic steel blocks satisfies Z=4*n+3, (n∈N * ) in the case of n=1, that is, there is a topological array structure composed of 7 pieces of magnetic steel, and the case of this implementation case with chamfering is as follows Figure 7 As shown, it is stipulated that the bottom edge of the first triangular magnetic steel block from left to right is the horizontal direction, and the angle between the magnetization direction of the first triangular magnetic steel and the horizontal right direction is, then Here [ ] represents the value range of α. Implementation case 3 satisfies the situation that the magnetization angle of the first magnet steel is α=60°, and the magnetization direction of each subsequent permanent magnet satisfies the detailed formula. The entire permanent magnet array consists of The angle θ(θ∈R) between the magnetization direction of each magnet steel and the horizontal right direction, the angle is positive in ...

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Abstract

The invention discloses a permanent magnet array. The array is formed by arranging several equilateral triangle magnets of the same size in sequence. The magnetization directions of adjacent equilateral triangle magnets are different, so that the magnetic field converges on one side. The number of magnets is Z , satisfy Z=4*n+3, (n∈N * ). When in use, in the permanent magnet array, the magnetization direction of adjacent 2-4 magnetic steels converges, and the local N pole or S pole magnetic field converges to make the magnetic force lines superimpose and increase the unilateral magnetic flux density of the permanent magnet array. It achieves the effect of enhancing the unilateral magnetic field on the surface of the guide rail, and increases the magnetic field strength and the effective area of ​​the magnetic field strength above the array.

Description

technical field [0001] The invention mainly relates to the technical field of permanent magnets, in particular to an array of permanent magnets, and in particular to an array of arrangement and combination of permanent magnets with different magnetization directions. Background technique [0002] In the existing permanent magnet array, several square permanent magnets are usually arranged in sequence to generate a certain magnetic field, which can be applied to various occasions. [0003] For example, in the permanent magnet array used in the traditional superconducting suspension model, only the permanent magnets are arranged in an N-S manner to form a stable magnetic field to achieve the purpose of suspending the superconducting material. In the general scheme, in order to enhance the magnetic field above the permanent magnet track, Usually, rare earth permanent magnets are used for permanent magnets. Even so, the surface magnetic field strength provided by their orbits is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F7/02
CPCH01F7/0273
Inventor 裴瑞琳高凌宇张航
Owner 苏州英磁新能源科技有限公司
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