Tile-shaped magnet with halbach array structure effect and manufacturing method

An array structure, tile-shaped magnet technology, which is applied in the manufacture of motor generators, stator/rotor bodies, magnetic circuit shape/style/structure, etc. The effect of small leakage flux and less harmonic components

Pending Publication Date: 2020-03-31
HANGZHOUSNNER MACHINERY EQUIP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Its disadvantage is that although this method improves the surface magnetic flux density distribution waveform, it increases the difficulty of grinding and increases the amount of grinding, and the magnetic tiles made in this way are made by sacrificing the left and right shoulders of the magnetic tiles. magnetic flux at the expense of

Method used

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  • Tile-shaped magnet with halbach array structure effect and manufacturing method
  • Tile-shaped magnet with halbach array structure effect and manufacturing method
  • Tile-shaped magnet with halbach array structure effect and manufacturing method

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Effect test

Embodiment

[0032] Embodiment: A tile-shaped magnet with a halbach array structure effect, mainly including magnetic tiles, the internal magnetic moments of the magnetic tiles are arranged in a halbach array structure, and the magnetic flux density on the working surface of the magnetic ring formed by assembling and combining the magnetic tiles is as follows: Good sine wave distribution, the orientation magnetic field is generated by the DC power supply through the coil through the magnetic field forming orientation device.

[0033] as attached Figure 7 As shown, the magnetic field forming and orientation device mainly includes a magnetic tile 1; an upper punch main magnetic pole 8 is arranged on the magnetic tile 1 in the magnetic tile mold cavity, a lower punch 9 is arranged below, and the upper punch main magnetic pole 8 is surrounded by There is a non-magnetically conductive part 7 of the upper die head, and a non-magnetically conductive material 4 is provided around the lower punch....

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Abstract

The invention discloses a tile-shaped magnet with a halbach array structure effect and a manufacturing method, relating to the field of magnetic shoe forming orientation A parallel orientation or radiation orientation mode in a traditional magnetic shoe forming process is changed, and a unique magnetic field orientation forming system is designed, so that magnetic moments in a magnetic shoe are arranged in a halbach array structure. The surface magnetic flux density of the magnetic ring assembled and combined by magnetic shoes prepared by the method is in good sine wave distribution, and the magnetic ring has a unilateral magnetism gathering effect, the working surface air gap magnetic field intensity is improved, the magnetic energy utilization rate is high, no performance loss exists, and the magnetic ring can be widely applied to motor design.

Description

technical field [0001] The invention relates to the field of forming and orientation of magnetic tiles, in particular to a tile-shaped magnet with Halbach array structure effect and a manufacturing method. Background technique [0002] The Halbach array structure was proposed by American scholar Klaus Halbach in 1979. It is a permanent magnet arrangement that combines radial and tangential arrays. It has many advantages: 1. It has a strong unilateral magnetic concentration effect, that is, the array The magnetic field on one side is obviously enhanced, while the magnetic field on the other side is obviously weakened; 2. The air gap magnetic flux density on one side of the strong magnetic field is similar to a sine wave distribution, and the harmonic content is low. [0003] Tile-shaped magnets are a type of permanent magnet device with the highest output value among permanent magnet ferrite materials. They are widely used in household appliances, medical equipment, computer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/06H02K15/00H02K1/17H02K1/27H02K15/03
CPCH02K1/06H02K1/17H02K1/27H02K15/00H02K15/03
Inventor 柴晓峰郭强吕欢剑郭德森李辉
Owner HANGZHOUSNNER MACHINERY EQUIP
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